From dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0 Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 12 Sep 2011 11:27:51 +0200 Subject: Synchronised line endinge with release branch --- libX11/src/XlibInt.c | 4354 +++++++++++++++++++++++++------------------------- 1 file changed, 2177 insertions(+), 2177 deletions(-) (limited to 'libX11/src/XlibInt.c') diff --git a/libX11/src/XlibInt.c b/libX11/src/XlibInt.c index 305670214..edba13dc1 100644 --- a/libX11/src/XlibInt.c +++ b/libX11/src/XlibInt.c @@ -1,2177 +1,2177 @@ -/* - -Copyright 1985, 1986, 1987, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included -in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR -OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, -ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR -OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall -not be used in advertising or otherwise to promote the sale, use or -other dealings in this Software without prior written authorization -from The Open Group. - -*/ - -/* - * XlibInt.c - Internal support routines for the C subroutine - * interface library (Xlib) to the X Window System Protocol V11.0. - */ - -#ifdef WIN32 -#define _XLIBINT_ -#include -#endif -#ifdef HAVE_CONFIG_H -#include -#endif -#include "Xlibint.h" -#include "Xprivate.h" -#include -#include -#include -#ifdef WIN32 -#include -#endif - -#ifdef XTHREADS -#include "locking.h" - -/* these pointers get initialized by XInitThreads */ -LockInfoPtr _Xglobal_lock = NULL; -void (*_XCreateMutex_fn)(LockInfoPtr) = NULL; -/* struct _XCVList *(*_XCreateCVL_fn)() = NULL; */ -void (*_XFreeMutex_fn)(LockInfoPtr) = NULL; -void (*_XLockMutex_fn)( - LockInfoPtr /* lock */ -#if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE) - , char * /* file */ - , int /* line */ -#endif - ) = NULL; -void (*_XUnlockMutex_fn)( - LockInfoPtr /* lock */ -#if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE) - , char * /* file */ - , int /* line */ -#endif - ) = NULL; -xthread_t (*_Xthread_self_fn)(void) = NULL; - -#define XThread_Self() ((*_Xthread_self_fn)()) - -#endif /* XTHREADS */ - -/* check for both EAGAIN and EWOULDBLOCK, because some supposedly POSIX - * systems are broken and return EWOULDBLOCK when they should return EAGAIN - */ -#ifdef WIN32 -#define ETEST() (WSAGetLastError() == WSAEWOULDBLOCK) -#else -#ifdef __CYGWIN__ /* Cygwin uses ENOBUFS to signal socket is full */ -#define ETEST() (errno == EAGAIN || errno == EWOULDBLOCK || errno == ENOBUFS) -#else -#if defined(EAGAIN) && defined(EWOULDBLOCK) -#define ETEST() (errno == EAGAIN || errno == EWOULDBLOCK) -#else -#ifdef EAGAIN -#define ETEST() (errno == EAGAIN) -#else -#define ETEST() (errno == EWOULDBLOCK) -#endif /* EAGAIN */ -#endif /* EAGAIN && EWOULDBLOCK */ -#endif /* __CYGWIN__ */ -#endif /* WIN32 */ - -#ifdef WIN32 -#define ECHECK(err) (WSAGetLastError() == err) -#define ESET(val) WSASetLastError(val) -#else -#ifdef __UNIXOS2__ -#define ECHECK(err) (errno == err) -#define ESET(val) -#else -#define ECHECK(err) (errno == err) -#define ESET(val) errno = val -#endif -#endif - -#if defined(LOCALCONN) || defined(LACHMAN) -#ifdef EMSGSIZE -#define ESZTEST() (ECHECK(EMSGSIZE) || ECHECK(ERANGE)) -#else -#define ESZTEST() ECHECK(ERANGE) -#endif -#else -#ifdef EMSGSIZE -#define ESZTEST() ECHECK(EMSGSIZE) -#endif -#endif - -#ifdef __UNIXOS2__ -#include -#define MAX_PATH _POSIX_PATH_MAX -#endif - -/* - * The following routines are internal routines used by Xlib for protocol - * packet transmission and reception. - * - * _XIOError(Display *) will be called if any sort of system call error occurs. - * This is assumed to be a fatal condition, i.e., XIOError should not return. - * - * _XError(Display *, xError *) will be called whenever an X_Error event is - * received. This is not assumed to be a fatal condition, i.e., it is - * acceptable for this procedure to return. However, XError should NOT - * perform any operations (directly or indirectly) on the DISPLAY. - * - * Routines declared with a return type of 'Status' return 0 on failure, - * and non 0 on success. Routines with no declared return type don't - * return anything. Whenever possible routines that create objects return - * the object they have created. - */ - -#define POLLFD_CACHE_SIZE 5 - -#if _WIN32_WINNT < _WIN32_WINNT_VISTA -struct pollfd { - - SOCKET fd; - SHORT events; - SHORT revents; - -}; -#define POLLRDNORM 0x0100 -#define POLLRDBAND 0x0200 -#define POLLIN (POLLRDNORM | POLLRDBAND) -#endif - -/* initialize the struct array passed to poll() below */ -Bool _XPollfdCacheInit( - Display *dpy) -{ -#ifdef USE_POLL - struct pollfd *pfp; - - pfp = (struct pollfd *)Xmalloc(POLLFD_CACHE_SIZE * sizeof(struct pollfd)); - if (!pfp) - return False; - pfp[0].fd = dpy->fd; - pfp[0].events = POLLIN; - - dpy->filedes = (XPointer)pfp; -#endif - return True; -} - -void _XPollfdCacheAdd( - Display *dpy, - int fd) -{ -#ifdef USE_POLL - struct pollfd *pfp = (struct pollfd *)dpy->filedes; - - if (dpy->im_fd_length <= POLLFD_CACHE_SIZE) { - pfp[dpy->im_fd_length].fd = fd; - pfp[dpy->im_fd_length].events = POLLIN; - } -#endif -} - -/* ARGSUSED */ -void _XPollfdCacheDel( - Display *dpy, - int fd) /* not used */ -{ -#ifdef USE_POLL - struct pollfd *pfp = (struct pollfd *)dpy->filedes; - struct _XConnectionInfo *conni; - - /* just recalculate whole list */ - if (dpy->im_fd_length <= POLLFD_CACHE_SIZE) { - int loc = 1; - for (conni = dpy->im_fd_info; conni; conni=conni->next) { - pfp[loc].fd = conni->fd; - pfp[loc].events = POLLIN; - loc++; - } - } -#endif -} - -#ifdef _MSC_VER -#undef min -#define min __min -#endif - -static int sync_hazard(Display *dpy) -{ - unsigned long span = dpy->request - dpy->last_request_read; - unsigned long hazard = min((dpy->bufmax - dpy->buffer) / SIZEOF(xReq), 65535 - 10); - return span >= 65535 - hazard - 10; -} - -static -void sync_while_locked(Display *dpy) -{ -#ifdef XTHREADS - if (dpy->lock) - (*dpy->lock->user_lock_display)(dpy); -#endif - UnlockDisplay(dpy); - SyncHandle(); - InternalLockDisplay(dpy, /* don't skip user locks */ 0); -#ifdef XTHREADS - if (dpy->lock) - (*dpy->lock->user_unlock_display)(dpy); -#endif -} - -void _XSeqSyncFunction( - register Display *dpy) -{ - xGetInputFocusReply rep; - register xReq *req; - - if ((dpy->request - dpy->last_request_read) >= (65535 - BUFSIZE/SIZEOF(xReq))) { - GetEmptyReq(GetInputFocus, req); - (void) _XReply (dpy, (xReply *)&rep, 0, xTrue); - sync_while_locked(dpy); - } else if (sync_hazard(dpy)) - _XSetPrivSyncFunction(dpy); -} - -/* NOTE: only called if !XTHREADS, or when XInitThreads wasn't called. */ -static int -_XPrivSyncFunction (Display *dpy) -{ -#ifdef XTHREADS - assert(!dpy->lock_fns); -#endif - assert(dpy->synchandler == _XPrivSyncFunction); - assert((dpy->flags & XlibDisplayPrivSync) != 0); - dpy->synchandler = dpy->savedsynchandler; - dpy->savedsynchandler = NULL; - dpy->flags &= ~XlibDisplayPrivSync; - if(dpy->synchandler) - dpy->synchandler(dpy); - _XIDHandler(dpy); - _XSeqSyncFunction(dpy); - return 0; -} - -void _XSetPrivSyncFunction(Display *dpy) -{ -#ifdef XTHREADS - if (dpy->lock_fns) - return; -#endif - if (!(dpy->flags & XlibDisplayPrivSync)) { - dpy->savedsynchandler = dpy->synchandler; - dpy->synchandler = _XPrivSyncFunction; - dpy->flags |= XlibDisplayPrivSync; - } -} - -void _XSetSeqSyncFunction(Display *dpy) -{ - if (sync_hazard(dpy)) - _XSetPrivSyncFunction (dpy); -} - -#ifdef LONG64 -void _XRead32( - Display *dpy, - register long *data, - long len) -{ - register int *buf; - register long i; - - if (len) { - (void) _XRead(dpy, (char *)data, len); - i = len >> 2; - buf = (int *)data + i; - data += i; - while (--i >= 0) - *--data = *--buf; - } -} -#endif /* LONG64 */ - -#ifdef WORD64 - -/* - * XXX This is a *really* stupid way of doing this.... - * PACKBUFFERSIZE must be a multiple of 4. - */ - -#define PACKBUFFERSIZE 4096 - - -/* - * _XRead32 - Read bytes from the socket unpacking each 32 bits - * into a long (64 bits on a CRAY computer). - * - */ -static void _doXRead32( - register Display *dpy, - register long *data - register long size, - register char *packbuffer) -{ - long *lpack,*lp; - long mask32 = 0x00000000ffffffff; - long maskw, nwords, i, bits; - - _XReadPad (dpy, packbuffer, size); - - lp = data; - lpack = (long *) packbuffer; - nwords = size >> 2; - bits = 32; - - for(i=0;i> bits; - bits = bits ^32; - if(bits){ - lpack++; - } - } -} - -void _XRead32( - Display *dpy, - long *data, - long len) -{ - char packbuffer[PACKBUFFERSIZE]; - unsigned nunits = PACKBUFFERSIZE >> 2; - - for (; len > PACKBUFFERSIZE; len -= PACKBUFFERSIZE, data += nunits) { - _doXRead32 (dpy, data, PACKBUFFERSIZE, packbuffer); - } - if (len) _doXRead32 (dpy, data, len, packbuffer); -} - - - -/* - * _XRead16 - Read bytes from the socket unpacking each 16 bits - * into a long (64 bits on a CRAY computer). - * - */ -static _doXRead16( - register Display *dpy, - register short *data, - register long size, - char *packbuffer) -{ - long *lpack,*lp; - long mask16 = 0x000000000000ffff; - long maskw, nwords, i, bits; - - (void) _XRead(dpy,packbuffer,size); /* don't do a padded read... */ - - lp = (long *) data; - lpack = (long *) packbuffer; - nwords = size >> 1; /* number of 16 bit words to be unpacked */ - bits = 48; - for(i=0;i> bits; - bits -= 16; - if(bits < 0){ - lpack++; - bits = 48; - } - } -} - -void _XRead16( - Display *dpy, - short *data, - long len) -{ - char packbuffer[PACKBUFFERSIZE]; - unsigned nunits = PACKBUFFERSIZE >> 1; - - for (; len > PACKBUFFERSIZE; len -= PACKBUFFERSIZE, data += nunits) { - _doXRead16 (dpy, data, PACKBUFFERSIZE, packbuffer); - } - if (len) _doXRead16 (dpy, data, len, packbuffer); -} - -void _XRead16Pad( - Display *dpy, - short *data, - long size) -{ - int slop = (size & 3); - short slopbuf[3]; - - _XRead16 (dpy, data, size); - if (slop > 0) { - _XRead16 (dpy, slopbuf, 4 - slop); - } -} -#endif /* WORD64 */ - -/* - * The hard part about this is that we only get 16 bits from a reply. - * We have three values that will march along, with the following invariant: - * dpy->last_request_read <= rep->sequenceNumber <= dpy->request - * We have to keep - * dpy->request - dpy->last_request_read < 2^16 - * or else we won't know for sure what value to use in events. We do this - * by forcing syncs when we get close. - */ - -unsigned long -_XSetLastRequestRead( - register Display *dpy, - register xGenericReply *rep) -{ - register unsigned long newseq, lastseq; - - lastseq = dpy->last_request_read; - /* - * KeymapNotify has no sequence number, but is always guaranteed - * to immediately follow another event, except when generated via - * SendEvent (hmmm). - */ - if ((rep->type & 0x7f) == KeymapNotify) - return(lastseq); - - newseq = (lastseq & ~((unsigned long)0xffff)) | rep->sequenceNumber; - - if (newseq < lastseq) { - newseq += 0x10000; - if (newseq > dpy->request) { - (void) fprintf (stderr, - "Xlib: sequence lost (0x%lx > 0x%lx) in reply type 0x%x!\n", - newseq, dpy->request, - (unsigned int) rep->type); - newseq -= 0x10000; - } - } - - dpy->last_request_read = newseq; - return(newseq); -} - -/* - * Support for internal connections, such as an IM might use. - * By Stephen Gildea, X Consortium, September 1993 - */ - -/* _XRegisterInternalConnection - * Each IM (or Xlib extension) that opens a file descriptor that Xlib should - * include in its select/poll mask must call this function to register the - * fd with Xlib. Any XConnectionWatchProc registered by XAddConnectionWatch - * will also be called. - * - * Whenever Xlib detects input available on fd, it will call callback - * with call_data to process it. If non-Xlib code calls select/poll - * and detects input available, it must call XProcessInternalConnection, - * which will call the associated callback. - * - * Non-Xlib code can learn about these additional fds by calling - * XInternalConnectionNumbers or, more typically, by registering - * a XConnectionWatchProc with XAddConnectionWatch - * to be called when fds are registered or unregistered. - * - * Returns True if registration succeeded, False if not, typically - * because could not allocate memory. - * Assumes Display locked when called. - */ -Status -_XRegisterInternalConnection( - Display* dpy, - int fd, - _XInternalConnectionProc callback, - XPointer call_data -) -{ - struct _XConnectionInfo *new_conni, **iptr; - struct _XConnWatchInfo *watchers; - XPointer *wd; - - new_conni = (struct _XConnectionInfo*)Xmalloc(sizeof(struct _XConnectionInfo)); - if (!new_conni) - return 0; - new_conni->watch_data = (XPointer *)Xmalloc(dpy->watcher_count * sizeof(XPointer)); - if (!new_conni->watch_data) { - Xfree(new_conni); - return 0; - } - new_conni->fd = fd; - new_conni->read_callback = callback; - new_conni->call_data = call_data; - new_conni->next = NULL; - /* link new structure onto end of list */ - for (iptr = &dpy->im_fd_info; *iptr; iptr = &(*iptr)->next) - ; - *iptr = new_conni; - dpy->im_fd_length++; - _XPollfdCacheAdd(dpy, fd); - - for (watchers=dpy->conn_watchers, wd=new_conni->watch_data; - watchers; - watchers=watchers->next, wd++) { - *wd = NULL; /* for cleanliness */ - (*watchers->fn) (dpy, watchers->client_data, fd, True, wd); - } - - return 1; -} - -/* _XUnregisterInternalConnection - * Each IM (or Xlib extension) that closes a file descriptor previously - * registered with _XRegisterInternalConnection must call this function. - * Any XConnectionWatchProc registered by XAddConnectionWatch - * will also be called. - * - * Assumes Display locked when called. - */ -void -_XUnregisterInternalConnection( - Display* dpy, - int fd -) -{ - struct _XConnectionInfo *info_list, **prev; - struct _XConnWatchInfo *watch; - XPointer *wd; - - for (prev = &dpy->im_fd_info; (info_list = *prev); - prev = &info_list->next) { - if (info_list->fd == fd) { - *prev = info_list->next; - dpy->im_fd_length--; - for (watch=dpy->conn_watchers, wd=info_list->watch_data; - watch; - watch=watch->next, wd++) { - (*watch->fn) (dpy, watch->client_data, fd, False, wd); - } - if (info_list->watch_data) - Xfree (info_list->watch_data); - Xfree (info_list); - break; - } - } - _XPollfdCacheDel(dpy, fd); -} - -/* XInternalConnectionNumbers - * Returns an array of fds and an array of corresponding call data. - * Typically a XConnectionWatchProc registered with XAddConnectionWatch - * will be used instead of this function to discover - * additional fds to include in the select/poll mask. - * - * The list is allocated with Xmalloc and should be freed by the caller - * with Xfree; - */ -Status -XInternalConnectionNumbers( - Display *dpy, - int **fd_return, - int *count_return -) -{ - int count; - struct _XConnectionInfo *info_list; - int *fd_list; - - LockDisplay(dpy); - count = 0; - for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) - count++; - fd_list = (int*) Xmalloc (count * sizeof(int)); - if (!fd_list) { - UnlockDisplay(dpy); - return 0; - } - count = 0; - for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) { - fd_list[count] = info_list->fd; - count++; - } - UnlockDisplay(dpy); - - *fd_return = fd_list; - *count_return = count; - return 1; -} - -void _XProcessInternalConnection( - Display *dpy, - struct _XConnectionInfo *conn_info) -{ - dpy->flags |= XlibDisplayProcConni; - UnlockDisplay(dpy); - (*conn_info->read_callback) (dpy, conn_info->fd, conn_info->call_data); - LockDisplay(dpy); - dpy->flags &= ~XlibDisplayProcConni; -} - -/* XProcessInternalConnection - * Call the _XInternalConnectionProc registered by _XRegisterInternalConnection - * for this fd. - * The Display is NOT locked during the call. - */ -void -XProcessInternalConnection( - Display* dpy, - int fd -) -{ - struct _XConnectionInfo *info_list; - - LockDisplay(dpy); - for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) { - if (info_list->fd == fd) { - _XProcessInternalConnection(dpy, info_list); - break; - } - } - UnlockDisplay(dpy); -} - -/* XAddConnectionWatch - * Register a callback to be called whenever _XRegisterInternalConnection - * or _XUnregisterInternalConnection is called. - * Callbacks are called with the Display locked. - * If any connections are already registered, the callback is immediately - * called for each of them. - */ -Status -XAddConnectionWatch( - Display* dpy, - XConnectionWatchProc callback, - XPointer client_data -) -{ - struct _XConnWatchInfo *new_watcher, **wptr; - struct _XConnectionInfo *info_list; - XPointer *wd_array; - - LockDisplay(dpy); - - /* allocate new watch data */ - for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) { - wd_array = (XPointer *)Xrealloc((char *)info_list->watch_data, - (dpy->watcher_count + 1) * - sizeof(XPointer)); - if (!wd_array) { - UnlockDisplay(dpy); - return 0; - } - info_list->watch_data = wd_array; - wd_array[dpy->watcher_count] = NULL; /* for cleanliness */ - } - - new_watcher = (struct _XConnWatchInfo*)Xmalloc(sizeof(struct _XConnWatchInfo)); - if (!new_watcher) { - UnlockDisplay(dpy); - return 0; - } - new_watcher->fn = callback; - new_watcher->client_data = client_data; - new_watcher->next = NULL; - - /* link new structure onto end of list */ - for (wptr = &dpy->conn_watchers; *wptr; wptr = &(*wptr)->next) - ; - *wptr = new_watcher; - dpy->watcher_count++; - - /* call new watcher on all currently registered fds */ - for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) { - (*callback) (dpy, client_data, info_list->fd, True, - info_list->watch_data + dpy->watcher_count - 1); - } - - UnlockDisplay(dpy); - return 1; -} - -/* XRemoveConnectionWatch - * Unregister a callback registered by XAddConnectionWatch. - * Both callback and client_data must match what was passed to - * XAddConnectionWatch. - */ -void -XRemoveConnectionWatch( - Display* dpy, - XConnectionWatchProc callback, - XPointer client_data -) -{ - struct _XConnWatchInfo *watch; - struct _XConnWatchInfo *previous = NULL; - struct _XConnectionInfo *conni; - int counter = 0; - - LockDisplay(dpy); - for (watch=dpy->conn_watchers; watch; watch=watch->next) { - if (watch->fn == callback && watch->client_data == client_data) { - if (previous) - previous->next = watch->next; - else - dpy->conn_watchers = watch->next; - Xfree (watch); - dpy->watcher_count--; - /* remove our watch_data for each connection */ - for (conni=dpy->im_fd_info; conni; conni=conni->next) { - /* don't bother realloc'ing; these arrays are small anyway */ - /* overlapping */ - memmove(conni->watch_data+counter, - conni->watch_data+counter+1, - dpy->watcher_count - counter); - } - break; - } - previous = watch; - counter++; - } - UnlockDisplay(dpy); -} - -/* end of internal connections support */ - -/* Cookie jar implementation - dpy->cookiejar is a linked list. _XEnq receives the events but leaves - them in the normal EQ. _XStoreEvent returns the cookie event (minus - data pointer) and adds it to the cookiejar. _XDeq just removes - the entry like any other event but resets the data pointer for - cookie events (to avoid double-free, the memory is re-used by Xlib). - - _XFetchEventCookie (called from XGetEventData) removes a cookie from the - jar. _XFreeEventCookies removes all unclaimed cookies from the jar - (called by XNextEvent). - - _XFreeDisplayStructure calls _XFreeEventCookies for each cookie in the - normal EQ. - */ - -#include "utlist.h" -struct stored_event { - XGenericEventCookie ev; - struct stored_event *prev; - struct stored_event *next; -}; - -Bool -_XIsEventCookie(Display *dpy, XEvent *ev) -{ - return (ev->xcookie.type == GenericEvent && - dpy->generic_event_vec[ev->xcookie.extension & 0x7F] != NULL); -} - -/** - * Free all events in the event list. - */ -void -_XFreeEventCookies(Display *dpy) -{ - struct stored_event **head, *e, *tmp; - - if (!dpy->cookiejar) - return; - - head = (struct stored_event**)&dpy->cookiejar; - - DL_FOREACH_SAFE(*head, e, tmp) { - if (dpy->cookiejar == e) - dpy->cookiejar = NULL; - XFree(e->ev.data); - XFree(e); - } -} - -/** - * Add an event to the display's event list. This event must be freed on the - * next call to XNextEvent(). - */ -void -_XStoreEventCookie(Display *dpy, XEvent *event) -{ - XGenericEventCookie* cookie = &event->xcookie; - struct stored_event **head, *add; - - if (!_XIsEventCookie(dpy, event)) - return; - - head = (struct stored_event**)(&dpy->cookiejar); - - add = Xmalloc(sizeof(struct stored_event)); - if (!add) { - ESET(ENOMEM); - _XIOError(dpy); - } - add->ev = *cookie; - DL_APPEND(*head, add); - cookie->data = NULL; /* don't return data yet, must be claimed */ -} - -/** - * Return the event with the given cookie and remove it from the list. - */ -Bool -_XFetchEventCookie(Display *dpy, XGenericEventCookie* ev) -{ - Bool ret = False; - struct stored_event **head, *event; - head = (struct stored_event**)&dpy->cookiejar; - - if (!_XIsEventCookie(dpy, (XEvent*)ev)) - return ret; - - DL_FOREACH(*head, event) { - if (event->ev.cookie == ev->cookie && - event->ev.extension == ev->extension && - event->ev.evtype == ev->evtype) { - *ev = event->ev; - DL_DELETE(*head, event); - Xfree(event); - ret = True; - break; - } - } - - return ret; -} - -Bool -_XCopyEventCookie(Display *dpy, XGenericEventCookie *in, XGenericEventCookie *out) -{ - Bool ret = False; - int extension; - - if (!_XIsEventCookie(dpy, (XEvent*)in) || !out) - return ret; - - extension = in->extension & 0x7F; - - if (!dpy->generic_event_copy_vec[extension]) - return ret; - - ret = ((*dpy->generic_event_copy_vec[extension])(dpy, in, out)); - out->cookie = ret ? ++dpy->next_cookie : 0; - return ret; -} - - -/* - * _XEnq - Place event packets on the display's queue. - * note that no squishing of move events in V11, since there - * is pointer motion hints.... - */ -void _XEnq( - register Display *dpy, - register xEvent *event) -{ - register _XQEvent *qelt; - int type, extension; - - if ((qelt = dpy->qfree)) { - /* If dpy->qfree is non-NULL do this, else malloc a new one. */ - dpy->qfree = qelt->next; - } - else if ((qelt = - (_XQEvent *) Xmalloc((unsigned)sizeof(_XQEvent))) == NULL) { - /* Malloc call failed! */ - ESET(ENOMEM); - _XIOError(dpy); - } - qelt->next = NULL; - - type = event->u.u.type & 0177; - extension = ((xGenericEvent*)event)->extension; - - qelt->event.type = type; - /* If an extension has registerd a generic_event_vec handler, then - * it can handle event cookies. Otherwise, proceed with the normal - * event handlers. - * - * If the generic_event_vec is called, qelt->event is a event cookie - * with the data pointer and the "free" pointer set. Data pointer is - * some memory allocated by the extension. - */ - if (type == GenericEvent && dpy->generic_event_vec[extension & 0x7F]) { - XGenericEventCookie *cookie = &qelt->event.xcookie; - (*dpy->generic_event_vec[extension & 0x7F])(dpy, cookie, event); - cookie->cookie = ++dpy->next_cookie; - - qelt->qserial_num = dpy->next_event_serial_num++; - if (dpy->tail) dpy->tail->next = qelt; - else dpy->head = qelt; - - dpy->tail = qelt; - dpy->qlen++; - } else if ((*dpy->event_vec[type])(dpy, &qelt->event, event)) { - qelt->qserial_num = dpy->next_event_serial_num++; - if (dpy->tail) dpy->tail->next = qelt; - else dpy->head = qelt; - - dpy->tail = qelt; - dpy->qlen++; - } else { - /* ignored, or stashed away for many-to-one compression */ - qelt->next = dpy->qfree; - dpy->qfree = qelt; - } -} - -/* - * _XDeq - Remove event packet from the display's queue. - */ -void _XDeq( - register Display *dpy, - register _XQEvent *prev, /* element before qelt */ - register _XQEvent *qelt) /* element to be unlinked */ -{ - if (prev) { - if ((prev->next = qelt->next) == NULL) - dpy->tail = prev; - } else { - /* no prev, so removing first elt */ - if ((dpy->head = qelt->next) == NULL) - dpy->tail = NULL; - } - qelt->qserial_num = 0; - qelt->next = dpy->qfree; - dpy->qfree = qelt; - dpy->qlen--; - - if (_XIsEventCookie(dpy, &qelt->event)) { - XGenericEventCookie* cookie = &qelt->event.xcookie; - /* dpy->qfree is re-used, reset memory to avoid double free on - * _XFreeDisplayStructure */ - cookie->data = NULL; - } -} - -/* - * EventToWire in separate file in that often not needed. - */ - -/*ARGSUSED*/ -Bool -_XUnknownWireEvent( - register Display *dpy, /* pointer to display structure */ - register XEvent *re, /* pointer to where event should be reformatted */ - register xEvent *event) /* wire protocol event */ -{ -#ifdef notdef - (void) fprintf(stderr, - "Xlib: unhandled wire event! event number = %d, display = %x\n.", - event->u.u.type, dpy); -#endif - return(False); -} - -Bool -_XUnknownWireEventCookie( - Display *dpy, /* pointer to display structure */ - XGenericEventCookie *re, /* pointer to where event should be reformatted */ - xEvent *event) /* wire protocol event */ -{ -#ifdef notdef - fprintf(stderr, - "Xlib: unhandled wire cookie event! extension number = %d, display = %x\n.", - ((xGenericEvent*)event)->extension, dpy); -#endif - return(False); -} - -Bool -_XUnknownCopyEventCookie( - Display *dpy, /* pointer to display structure */ - XGenericEventCookie *in, /* source */ - XGenericEventCookie *out) /* destination */ -{ -#ifdef notdef - fprintf(stderr, - "Xlib: unhandled cookie event copy! extension number = %d, display = %x\n.", - in->extension, dpy); -#endif - return(False); -} - -/*ARGSUSED*/ -Status -_XUnknownNativeEvent( - register Display *dpy, /* pointer to display structure */ - register XEvent *re, /* pointer to where event should be reformatted */ - register xEvent *event) /* wire protocol event */ -{ -#ifdef notdef - (void) fprintf(stderr, - "Xlib: unhandled native event! event number = %d, display = %x\n.", - re->type, dpy); -#endif - return(0); -} -/* - * reformat a wire event into an XEvent structure of the right type. - */ -Bool -_XWireToEvent( - register Display *dpy, /* pointer to display structure */ - register XEvent *re, /* pointer to where event should be reformatted */ - register xEvent *event) /* wire protocol event */ -{ - - re->type = event->u.u.type & 0x7f; - ((XAnyEvent *)re)->serial = _XSetLastRequestRead(dpy, - (xGenericReply *)event); - ((XAnyEvent *)re)->send_event = ((event->u.u.type & 0x80) != 0); - ((XAnyEvent *)re)->display = dpy; - - /* Ignore the leading bit of the event type since it is set when a - client sends an event rather than the server. */ - - switch (event-> u.u.type & 0177) { - case KeyPress: - case KeyRelease: - { - register XKeyEvent *ev = (XKeyEvent*) re; - ev->root = event->u.keyButtonPointer.root; - ev->window = event->u.keyButtonPointer.event; - ev->subwindow = event->u.keyButtonPointer.child; - ev->time = event->u.keyButtonPointer.time; - ev->x = cvtINT16toInt(event->u.keyButtonPointer.eventX); - ev->y = cvtINT16toInt(event->u.keyButtonPointer.eventY); - ev->x_root = cvtINT16toInt(event->u.keyButtonPointer.rootX); - ev->y_root = cvtINT16toInt(event->u.keyButtonPointer.rootY); - ev->state = event->u.keyButtonPointer.state; - ev->same_screen = event->u.keyButtonPointer.sameScreen; - ev->keycode = event->u.u.detail; - } - break; - case ButtonPress: - case ButtonRelease: - { - register XButtonEvent *ev = (XButtonEvent *) re; - ev->root = event->u.keyButtonPointer.root; - ev->window = event->u.keyButtonPointer.event; - ev->subwindow = event->u.keyButtonPointer.child; - ev->time = event->u.keyButtonPointer.time; - ev->x = cvtINT16toInt(event->u.keyButtonPointer.eventX); - ev->y = cvtINT16toInt(event->u.keyButtonPointer.eventY); - ev->x_root = cvtINT16toInt(event->u.keyButtonPointer.rootX); - ev->y_root = cvtINT16toInt(event->u.keyButtonPointer.rootY); - ev->state = event->u.keyButtonPointer.state; - ev->same_screen = event->u.keyButtonPointer.sameScreen; - ev->button = event->u.u.detail; - } - break; - case MotionNotify: - { - register XMotionEvent *ev = (XMotionEvent *)re; - ev->root = event->u.keyButtonPointer.root; - ev->window = event->u.keyButtonPointer.event; - ev->subwindow = event->u.keyButtonPointer.child; - ev->time = event->u.keyButtonPointer.time; - ev->x = cvtINT16toInt(event->u.keyButtonPointer.eventX); - ev->y = cvtINT16toInt(event->u.keyButtonPointer.eventY); - ev->x_root = cvtINT16toInt(event->u.keyButtonPointer.rootX); - ev->y_root = cvtINT16toInt(event->u.keyButtonPointer.rootY); - ev->state = event->u.keyButtonPointer.state; - ev->same_screen = event->u.keyButtonPointer.sameScreen; - ev->is_hint = event->u.u.detail; - } - break; - case EnterNotify: - case LeaveNotify: - { - register XCrossingEvent *ev = (XCrossingEvent *) re; - ev->root = event->u.enterLeave.root; - ev->window = event->u.enterLeave.event; - ev->subwindow = event->u.enterLeave.child; - ev->time = event->u.enterLeave.time; - ev->x = cvtINT16toInt(event->u.enterLeave.eventX); - ev->y = cvtINT16toInt(event->u.enterLeave.eventY); - ev->x_root = cvtINT16toInt(event->u.enterLeave.rootX); - ev->y_root = cvtINT16toInt(event->u.enterLeave.rootY); - ev->state = event->u.enterLeave.state; - ev->mode = event->u.enterLeave.mode; - ev->same_screen = (event->u.enterLeave.flags & - ELFlagSameScreen) && True; - ev->focus = (event->u.enterLeave.flags & - ELFlagFocus) && True; - ev->detail = event->u.u.detail; - } - break; - case FocusIn: - case FocusOut: - { - register XFocusChangeEvent *ev = (XFocusChangeEvent *) re; - ev->window = event->u.focus.window; - ev->mode = event->u.focus.mode; - ev->detail = event->u.u.detail; - } - break; - case KeymapNotify: - { - register XKeymapEvent *ev = (XKeymapEvent *) re; - ev->window = None; - memcpy(&ev->key_vector[1], - (char *)((xKeymapEvent *) event)->map, - sizeof (((xKeymapEvent *) event)->map)); - } - break; - case Expose: - { - register XExposeEvent *ev = (XExposeEvent *) re; - ev->window = event->u.expose.window; - ev->x = event->u.expose.x; - ev->y = event->u.expose.y; - ev->width = event->u.expose.width; - ev->height = event->u.expose.height; - ev->count = event->u.expose.count; - } - break; - case GraphicsExpose: - { - register XGraphicsExposeEvent *ev = - (XGraphicsExposeEvent *) re; - ev->drawable = event->u.graphicsExposure.drawable; - ev->x = event->u.graphicsExposure.x; - ev->y = event->u.graphicsExposure.y; - ev->width = event->u.graphicsExposure.width; - ev->height = event->u.graphicsExposure.height; - ev->count = event->u.graphicsExposure.count; - ev->major_code = event->u.graphicsExposure.majorEvent; - ev->minor_code = event->u.graphicsExposure.minorEvent; - } - break; - case NoExpose: - { - register XNoExposeEvent *ev = (XNoExposeEvent *) re; - ev->drawable = event->u.noExposure.drawable; - ev->major_code = event->u.noExposure.majorEvent; - ev->minor_code = event->u.noExposure.minorEvent; - } - break; - case VisibilityNotify: - { - register XVisibilityEvent *ev = (XVisibilityEvent *) re; - ev->window = event->u.visibility.window; - ev->state = event->u.visibility.state; - } - break; - case CreateNotify: - { - register XCreateWindowEvent *ev = - (XCreateWindowEvent *) re; - ev->window = event->u.createNotify.window; - ev->parent = event->u.createNotify.parent; - ev->x = cvtINT16toInt(event->u.createNotify.x); - ev->y = cvtINT16toInt(event->u.createNotify.y); - ev->width = event->u.createNotify.width; - ev->height = event->u.createNotify.height; - ev->border_width = event->u.createNotify.borderWidth; - ev->override_redirect = event->u.createNotify.override; - } - break; - case DestroyNotify: - { - register XDestroyWindowEvent *ev = - (XDestroyWindowEvent *) re; - ev->window = event->u.destroyNotify.window; - ev->event = event->u.destroyNotify.event; - } - break; - case UnmapNotify: - { - register XUnmapEvent *ev = (XUnmapEvent *) re; - ev->window = event->u.unmapNotify.window; - ev->event = event->u.unmapNotify.event; - ev->from_configure = event->u.unmapNotify.fromConfigure; - } - break; - case MapNotify: - { - register XMapEvent *ev = (XMapEvent *) re; - ev->window = event->u.mapNotify.window; - ev->event = event->u.mapNotify.event; - ev->override_redirect = event->u.mapNotify.override; - } - break; - case MapRequest: - { - register XMapRequestEvent *ev = (XMapRequestEvent *) re; - ev->window = event->u.mapRequest.window; - ev->parent = event->u.mapRequest.parent; - } - break; - case ReparentNotify: - { - register XReparentEvent *ev = (XReparentEvent *) re; - ev->event = event->u.reparent.event; - ev->window = event->u.reparent.window; - ev->parent = event->u.reparent.parent; - ev->x = cvtINT16toInt(event->u.reparent.x); - ev->y = cvtINT16toInt(event->u.reparent.y); - ev->override_redirect = event->u.reparent.override; - } - break; - case ConfigureNotify: - { - register XConfigureEvent *ev = (XConfigureEvent *) re; - ev->event = event->u.configureNotify.event; - ev->window = event->u.configureNotify.window; - ev->above = event->u.configureNotify.aboveSibling; - ev->x = cvtINT16toInt(event->u.configureNotify.x); - ev->y = cvtINT16toInt(event->u.configureNotify.y); - ev->width = event->u.configureNotify.width; - ev->height = event->u.configureNotify.height; - ev->border_width = event->u.configureNotify.borderWidth; - ev->override_redirect = event->u.configureNotify.override; - } - break; - case ConfigureRequest: - { - register XConfigureRequestEvent *ev = - (XConfigureRequestEvent *) re; - ev->window = event->u.configureRequest.window; - ev->parent = event->u.configureRequest.parent; - ev->above = event->u.configureRequest.sibling; - ev->x = cvtINT16toInt(event->u.configureRequest.x); - ev->y = cvtINT16toInt(event->u.configureRequest.y); - ev->width = event->u.configureRequest.width; - ev->height = event->u.configureRequest.height; - ev->border_width = event->u.configureRequest.borderWidth; - ev->value_mask = event->u.configureRequest.valueMask; - ev->detail = event->u.u.detail; - } - break; - case GravityNotify: - { - register XGravityEvent *ev = (XGravityEvent *) re; - ev->window = event->u.gravity.window; - ev->event = event->u.gravity.event; - ev->x = cvtINT16toInt(event->u.gravity.x); - ev->y = cvtINT16toInt(event->u.gravity.y); - } - break; - case ResizeRequest: - { - register XResizeRequestEvent *ev = - (XResizeRequestEvent *) re; - ev->window = event->u.resizeRequest.window; - ev->width = event->u.resizeRequest.width; - ev->height = event->u.resizeRequest.height; - } - break; - case CirculateNotify: - { - register XCirculateEvent *ev = (XCirculateEvent *) re; - ev->window = event->u.circulate.window; - ev->event = event->u.circulate.event; - ev->place = event->u.circulate.place; - } - break; - case CirculateRequest: - { - register XCirculateRequestEvent *ev = - (XCirculateRequestEvent *) re; - ev->window = event->u.circulate.window; - ev->parent = event->u.circulate.event; - ev->place = event->u.circulate.place; - } - break; - case PropertyNotify: - { - register XPropertyEvent *ev = (XPropertyEvent *) re; - ev->window = event->u.property.window; - ev->atom = event->u.property.atom; - ev->time = event->u.property.time; - ev->state = event->u.property.state; - } - break; - case SelectionClear: - { - register XSelectionClearEvent *ev = - (XSelectionClearEvent *) re; - ev->window = event->u.selectionClear.window; - ev->selection = event->u.selectionClear.atom; - ev->time = event->u.selectionClear.time; - } - break; - case SelectionRequest: - { - register XSelectionRequestEvent *ev = - (XSelectionRequestEvent *) re; - ev->owner = event->u.selectionRequest.owner; - ev->requestor = event->u.selectionRequest.requestor; - ev->selection = event->u.selectionRequest.selection; - ev->target = event->u.selectionRequest.target; - ev->property = event->u.selectionRequest.property; - ev->time = event->u.selectionRequest.time; - } - break; - case SelectionNotify: - { - register XSelectionEvent *ev = (XSelectionEvent *) re; - ev->requestor = event->u.selectionNotify.requestor; - ev->selection = event->u.selectionNotify.selection; - ev->target = event->u.selectionNotify.target; - ev->property = event->u.selectionNotify.property; - ev->time = event->u.selectionNotify.time; - } - break; - case ColormapNotify: - { - register XColormapEvent *ev = (XColormapEvent *) re; - ev->window = event->u.colormap.window; - ev->colormap = event->u.colormap.colormap; - ev->new = event->u.colormap.new; - ev->state = event->u.colormap.state; - } - break; - case ClientMessage: - { - register int i; - register XClientMessageEvent *ev - = (XClientMessageEvent *) re; - ev->window = event->u.clientMessage.window; - ev->format = event->u.u.detail; - switch (ev->format) { - case 8: - ev->message_type = event->u.clientMessage.u.b.type; - for (i = 0; i < 20; i++) - ev->data.b[i] = event->u.clientMessage.u.b.bytes[i]; - break; - case 16: - ev->message_type = event->u.clientMessage.u.s.type; - ev->data.s[0] = cvtINT16toShort(event->u.clientMessage.u.s.shorts0); - ev->data.s[1] = cvtINT16toShort(event->u.clientMessage.u.s.shorts1); - ev->data.s[2] = cvtINT16toShort(event->u.clientMessage.u.s.shorts2); - ev->data.s[3] = cvtINT16toShort(event->u.clientMessage.u.s.shorts3); - ev->data.s[4] = cvtINT16toShort(event->u.clientMessage.u.s.shorts4); - ev->data.s[5] = cvtINT16toShort(event->u.clientMessage.u.s.shorts5); - ev->data.s[6] = cvtINT16toShort(event->u.clientMessage.u.s.shorts6); - ev->data.s[7] = cvtINT16toShort(event->u.clientMessage.u.s.shorts7); - ev->data.s[8] = cvtINT16toShort(event->u.clientMessage.u.s.shorts8); - ev->data.s[9] = cvtINT16toShort(event->u.clientMessage.u.s.shorts9); - break; - case 32: - ev->message_type = event->u.clientMessage.u.l.type; - ev->data.l[0] = cvtINT32toLong(event->u.clientMessage.u.l.longs0); - ev->data.l[1] = cvtINT32toLong(event->u.clientMessage.u.l.longs1); - ev->data.l[2] = cvtINT32toLong(event->u.clientMessage.u.l.longs2); - ev->data.l[3] = cvtINT32toLong(event->u.clientMessage.u.l.longs3); - ev->data.l[4] = cvtINT32toLong(event->u.clientMessage.u.l.longs4); - break; - default: /* XXX should never occur */ - break; - } - } - break; - case MappingNotify: - { - register XMappingEvent *ev = (XMappingEvent *)re; - ev->window = 0; - ev->first_keycode = event->u.mappingNotify.firstKeyCode; - ev->request = event->u.mappingNotify.request; - ev->count = event->u.mappingNotify.count; - } - break; - default: - return(_XUnknownWireEvent(dpy, re, event)); - } - return(True); -} - - -/* - * _XDefaultIOError - Default fatal system error reporting routine. Called - * when an X internal system error is encountered. - */ -int _XDefaultIOError( - Display *dpy) -{ - if (ECHECK(EPIPE)) { - (void) fprintf (stderr, - "X connection to %s broken (explicit kill or server shutdown).\r\n", - DisplayString (dpy)); - } else { - (void) fprintf (stderr, - "XIO: fatal IO error %d (%s) on X server \"%s\"\r\n", -#ifdef WIN32 - WSAGetLastError(), strerror(WSAGetLastError()), -#else - errno, strerror (errno), -#endif - DisplayString (dpy)); - (void) fprintf (stderr, - " after %lu requests (%lu known processed) with %d events remaining.\r\n", - NextRequest(dpy) - 1, LastKnownRequestProcessed(dpy), - QLength(dpy)); - - } - exit(1); - return(0); /* dummy - function should never return */ -} - - -static int _XPrintDefaultError( - Display *dpy, - XErrorEvent *event, - FILE *fp) -{ - char buffer[BUFSIZ]; - char mesg[BUFSIZ]; - char number[32]; - const char *mtype = "XlibMessage"; - register _XExtension *ext = (_XExtension *)NULL; - _XExtension *bext = (_XExtension *)NULL; - XGetErrorText(dpy, event->error_code, buffer, BUFSIZ); - XGetErrorDatabaseText(dpy, mtype, "XError", "X Error", mesg, BUFSIZ); - (void) fprintf(fp, "%s: %s\n ", mesg, buffer); - XGetErrorDatabaseText(dpy, mtype, "MajorCode", "Request Major code %d", - mesg, BUFSIZ); - (void) fprintf(fp, mesg, event->request_code); - if (event->request_code < 128) { - sprintf(number, "%d", event->request_code); - XGetErrorDatabaseText(dpy, "XRequest", number, "", buffer, BUFSIZ); - } else { - for (ext = dpy->ext_procs; - ext && (ext->codes.major_opcode != event->request_code); - ext = ext->next) - ; - if (ext) { - strncpy(buffer, ext->name, BUFSIZ); - buffer[BUFSIZ - 1] = '\0'; - } else - buffer[0] = '\0'; - } - (void) fprintf(fp, " (%s)\n", buffer); - if (event->request_code >= 128) { - XGetErrorDatabaseText(dpy, mtype, "MinorCode", "Request Minor code %d", - mesg, BUFSIZ); - fputs(" ", fp); - (void) fprintf(fp, mesg, event->minor_code); - if (ext) { - sprintf(mesg, "%s.%d", ext->name, event->minor_code); - XGetErrorDatabaseText(dpy, "XRequest", mesg, "", buffer, BUFSIZ); - (void) fprintf(fp, " (%s)", buffer); - } - fputs("\n", fp); - } - if (event->error_code >= 128) { - /* kludge, try to find the extension that caused it */ - buffer[0] = '\0'; - for (ext = dpy->ext_procs; ext; ext = ext->next) { - if (ext->error_string) - (*ext->error_string)(dpy, event->error_code, &ext->codes, - buffer, BUFSIZ); - if (buffer[0]) { - bext = ext; - break; - } - if (ext->codes.first_error && - ext->codes.first_error < (int)event->error_code && - (!bext || ext->codes.first_error > bext->codes.first_error)) - bext = ext; - } - if (bext) - sprintf(buffer, "%s.%d", bext->name, - event->error_code - bext->codes.first_error); - else - strcpy(buffer, "Value"); - XGetErrorDatabaseText(dpy, mtype, buffer, "", mesg, BUFSIZ); - if (mesg[0]) { - fputs(" ", fp); - (void) fprintf(fp, mesg, event->resourceid); - fputs("\n", fp); - } - /* let extensions try to print the values */ - for (ext = dpy->ext_procs; ext; ext = ext->next) { - if (ext->error_values) - (*ext->error_values)(dpy, event, fp); - } - } else if ((event->error_code == BadWindow) || - (event->error_code == BadPixmap) || - (event->error_code == BadCursor) || - (event->error_code == BadFont) || - (event->error_code == BadDrawable) || - (event->error_code == BadColor) || - (event->error_code == BadGC) || - (event->error_code == BadIDChoice) || - (event->error_code == BadValue) || - (event->error_code == BadAtom)) { - if (event->error_code == BadValue) - XGetErrorDatabaseText(dpy, mtype, "Value", "Value 0x%x", - mesg, BUFSIZ); - else if (event->error_code == BadAtom) - XGetErrorDatabaseText(dpy, mtype, "AtomID", "AtomID 0x%x", - mesg, BUFSIZ); - else - XGetErrorDatabaseText(dpy, mtype, "ResourceID", "ResourceID 0x%x", - mesg, BUFSIZ); - fputs(" ", fp); - (void) fprintf(fp, mesg, event->resourceid); - fputs("\n", fp); - } - XGetErrorDatabaseText(dpy, mtype, "ErrorSerial", "Error Serial #%d", - mesg, BUFSIZ); - fputs(" ", fp); - (void) fprintf(fp, mesg, event->serial); - XGetErrorDatabaseText(dpy, mtype, "CurrentSerial", "Current Serial #%d", - mesg, BUFSIZ); - fputs("\n ", fp); - (void) fprintf(fp, mesg, dpy->request); - fputs("\n", fp); - if (event->error_code == BadImplementation) return 0; - return 1; -} - -int _XDefaultError( - Display *dpy, - XErrorEvent *event) -{ - if (_XPrintDefaultError (dpy, event, stderr) == 0) return 0; - exit(1); - /*NOTREACHED*/ -} - -/*ARGSUSED*/ -Bool _XDefaultWireError(Display *display, XErrorEvent *he, xError *we) -{ - return True; -} - -/* - * _XError - upcall internal or user protocol error handler - */ -int _XError ( - Display *dpy, - register xError *rep) -{ - /* - * X_Error packet encountered! We need to unpack the error before - * giving it to the user. - */ - XEvent event; /* make it a large event */ - register _XAsyncHandler *async, *next; - - event.xerror.serial = _XSetLastRequestRead(dpy, (xGenericReply *)rep); - - for (async = dpy->async_handlers; async; async = next) { - next = async->next; - if ((*async->handler)(dpy, (xReply *)rep, - (char *)rep, SIZEOF(xError), async->data)) - return 0; - } - - event.xerror.display = dpy; - event.xerror.type = X_Error; - event.xerror.resourceid = rep->resourceID; - event.xerror.error_code = rep->errorCode; - event.xerror.request_code = rep->majorCode; - event.xerror.minor_code = rep->minorCode; - if (dpy->error_vec && - !(*dpy->error_vec[rep->errorCode])(dpy, &event.xerror, rep)) - return 0; - if (_XErrorFunction != NULL) { - int rtn_val; -#ifdef XTHREADS - if (dpy->lock) - (*dpy->lock->user_lock_display)(dpy); - UnlockDisplay(dpy); -#endif - rtn_val = (*_XErrorFunction)(dpy, (XErrorEvent *)&event); /* upcall */ -#ifdef XTHREADS - LockDisplay(dpy); - if (dpy->lock) - (*dpy->lock->user_unlock_display)(dpy); -#endif - return rtn_val; - } else { - return _XDefaultError(dpy, (XErrorEvent *)&event); - } -} - -/* - * _XIOError - call user connection error handler and exit - */ -int -_XIOError ( - Display *dpy) -{ - dpy->flags |= XlibDisplayIOError; -#ifdef WIN32 - errno = WSAGetLastError(); -#endif - - /* This assumes that the thread calling exit will call any atexit handlers. - * If this does not hold, then an alternate solution would involve - * registering an atexit handler to take over the lock, which would only - * assume that the same thread calls all the atexit handlers. */ -#ifdef XTHREADS - if (dpy->lock) - (*dpy->lock->user_lock_display)(dpy); -#endif - UnlockDisplay(dpy); - - if (_XIOErrorFunction != NULL) - (*_XIOErrorFunction)(dpy); - else - _XDefaultIOError(dpy); - exit (1); - return 0; -} - - -/* - * This routine can be used to (cheaply) get some memory within a single - * Xlib routine for scratch space. A single buffer is reused each time - * if possible. To be MT safe, you can only call this between a call to - * GetReq* and a call to Data* or _XSend*, or in a context when the thread - * is guaranteed to not unlock the display. - */ -char *_XAllocScratch( - register Display *dpy, - unsigned long nbytes) -{ - if (nbytes > dpy->scratch_length) { - if (dpy->scratch_buffer) Xfree (dpy->scratch_buffer); - if ((dpy->scratch_buffer = Xmalloc((unsigned) nbytes))) - dpy->scratch_length = nbytes; - else dpy->scratch_length = 0; - } - return (dpy->scratch_buffer); -} - -/* - * Scratch space allocator you can call any time, multiple times, and be - * MT safe, but you must hand the buffer back with _XFreeTemp. - */ -char *_XAllocTemp( - register Display *dpy, - unsigned long nbytes) -{ - char *buf; - - buf = _XAllocScratch(dpy, nbytes); - dpy->scratch_buffer = NULL; - dpy->scratch_length = 0; - return buf; -} - -void _XFreeTemp( - register Display *dpy, - char *buf, - unsigned long nbytes) -{ - if (dpy->scratch_buffer) - Xfree(dpy->scratch_buffer); - dpy->scratch_buffer = buf; - dpy->scratch_length = nbytes; -} - -/* - * Given a visual id, find the visual structure for this id on this display. - */ -Visual *_XVIDtoVisual( - Display *dpy, - VisualID id) -{ - register int i, j, k; - register Screen *sp; - register Depth *dp; - register Visual *vp; - for (i = 0; i < dpy->nscreens; i++) { - sp = &dpy->screens[i]; - for (j = 0; j < sp->ndepths; j++) { - dp = &sp->depths[j]; - /* if nvisuals == 0 then visuals will be NULL */ - for (k = 0; k < dp->nvisuals; k++) { - vp = &dp->visuals[k]; - if (vp->visualid == id) return (vp); - } - } - } - return (NULL); -} - -int -XFree (void *data) -{ - Xfree (data); - return 1; -} - -#ifdef _XNEEDBCOPYFUNC -void _Xbcopy(b1, b2, length) - register char *b1, *b2; - register length; -{ - if (b1 < b2) { - b2 += length; - b1 += length; - while (length--) - *--b2 = *--b1; - } else { - while (length--) - *b2++ = *b1++; - } -} -#endif - -#ifdef DataRoutineIsProcedure -void Data( - Display *dpy, - char *data, - long len) -{ - if (dpy->bufptr + (len) <= dpy->bufmax) { - memcpy(dpy->bufptr, data, (int)len); - dpy->bufptr += ((len) + 3) & ~3; - } else { - _XSend(dpy, data, len); - } -} -#endif /* DataRoutineIsProcedure */ - - -#ifdef LONG64 -int -_XData32( - Display *dpy, - register long *data, - unsigned len) -{ - register int *buf; - register long i; - - while (len) { - buf = (int *)dpy->bufptr; - i = dpy->bufmax - (char *)buf; - if (!i) { - _XFlush(dpy); - continue; - } - if (len < i) - i = len; - dpy->bufptr = (char *)buf + i; - len -= i; - i >>= 2; - while (--i >= 0) - *buf++ = *data++; - } - return 0; -} -#endif /* LONG64 */ - -#ifdef WORD64 - -/* - * XXX This is a *really* stupid way of doing this. It should just use - * dpy->bufptr directly, taking into account where in the word it is. - */ - -/* - * Data16 - Place 16 bit data in the buffer. - * - * "dpy" is a pointer to a Display. - * "data" is a pointer to the data. - * "len" is the length in bytes of the data. - */ - -static doData16( - register Display *dpy, - short *data, - unsigned len, - char *packbuffer) -{ - long *lp,*lpack; - long i, nwords,bits; - long mask16 = 0x000000000000ffff; - - lp = (long *)data; - lpack = (long *)packbuffer; - -/* nwords is the number of 16 bit values to be packed, - * the low order 16 bits of each word will be packed - * into 64 bit words - */ - nwords = len >> 1; - bits = 48; - - for(i=0;i> 1; - - for (; len > PACKBUFFERSIZE; len -= PACKBUFFERSIZE, data += nunits) { - doData16 (dpy, data, PACKBUFFERSIZE, packbuffer); - } - if (len) doData16 (dpy, data, len, packbuffer); -} - -/* - * Data32 - Place 32 bit data in the buffer. - * - * "dpy" is a pointer to a Display. - * "data" is a pointer to the data. - * "len" is the length in bytes of the data. - */ - -static doData32( - register Display *dpy - long *data, - unsigned len, - char *packbuffer) -{ - long *lp,*lpack; - long i,bits,nwords; - long mask32 = 0x00000000ffffffff; - - lpack = (long *) packbuffer; - lp = data; - -/* nwords is the number of 32 bit values to be packed - * the low order 32 bits of each word will be packed - * into 64 bit words - */ - nwords = len >> 2; - bits = 32; - - for(i=0;i> 2; - - for (; len > PACKBUFFERSIZE; len -= PACKBUFFERSIZE, data += nunits) { - doData32 (dpy, data, PACKBUFFERSIZE, packbuffer); - } - if (len) doData32 (dpy, data, len, packbuffer); -} - -#endif /* WORD64 */ - - -/* Make sure this produces the same string as DefineLocal/DefineSelf in xdm. - * Otherwise, Xau will not be able to find your cookies in the Xauthority file. - * - * Note: POSIX says that the ``nodename'' member of utsname does _not_ have - * to have sufficient information for interfacing to the network, - * and so, you may be better off using gethostname (if it exists). - */ - -#if (defined(_POSIX_SOURCE) && !defined(AIXV3) && !defined(__QNX__)) || defined(hpux) || defined(SVR4) -#define NEED_UTSNAME -#include -#else -#ifdef HAVE_UNISTD_H -#include -#endif -#endif - -/* - * _XGetHostname - similar to gethostname but allows special processing. - */ -int _XGetHostname ( - char *buf, - int maxlen) -{ - int len; - -#ifdef NEED_UTSNAME - struct utsname name; - - if (maxlen <= 0 || buf == NULL) - return 0; - - uname (&name); - len = strlen (name.nodename); - if (len >= maxlen) len = maxlen - 1; - strncpy (buf, name.nodename, len); - buf[len] = '\0'; -#else - if (maxlen <= 0 || buf == NULL) - return 0; - - buf[0] = '\0'; - (void) gethostname (buf, maxlen); - buf [maxlen - 1] = '\0'; - len = strlen(buf); -#endif /* NEED_UTSNAME */ - return len; -} - - -/* - * _XScreenOfWindow - get the Screen of a given window - */ - -Screen *_XScreenOfWindow(Display *dpy, Window w) -{ - register int i; - Window root; - int x, y; /* dummy variables */ - unsigned int width, height, bw, depth; /* dummy variables */ - - if (XGetGeometry (dpy, w, &root, &x, &y, &width, &height, - &bw, &depth) == False) { - return NULL; - } - for (i = 0; i < ScreenCount (dpy); i++) { /* find root from list */ - if (root == RootWindow (dpy, i)) { - return ScreenOfDisplay (dpy, i); - } - } - return NULL; -} - - -#if defined(WIN32) - -/* - * These functions are intended to be used internally to Xlib only. - * These functions will always prefix the path with a DOS drive in the - * form ":". As such, these functions are only suitable - * for use by Xlib function that supply a root-based path to some - * particular file, e.g. /lib/X11/locale/locale.dir will - * be converted to "C:/usr/X11R6.3/lib/X11/locale/locale.dir". - */ - -static int access_file (path, pathbuf, len_pathbuf, pathret) - char* path; - char* pathbuf; - int len_pathbuf; - char** pathret; -{ - if (access (path, F_OK) == 0) { - if (strlen (path) < len_pathbuf) - *pathret = pathbuf; - else - *pathret = Xmalloc (strlen (path) + 1); - if (*pathret) { - strcpy (*pathret, path); - return 1; - } - } - return 0; -} - -static int AccessFile (path, pathbuf, len_pathbuf, pathret) - char* path; - char* pathbuf; - int len_pathbuf; - char** pathret; -{ - unsigned long drives; - int i, len; - char* drive; - char buf[MAX_PATH]; - char* bufp; - - /* just try the "raw" name first and see if it works */ - if (access_file (path, pathbuf, len_pathbuf, pathret)) - return 1; - - /* try the places set in the environment */ - drive = getenv ("_XBASEDRIVE"); -#ifdef __UNIXOS2__ - if (!drive) - drive = getenv ("X11ROOT"); -#endif - if (!drive) - drive = "C:"; - len = strlen (drive) + strlen (path); - if (len < MAX_PATH) bufp = buf; - else bufp = Xmalloc (len + 1); - strcpy (bufp, drive); - strcat (bufp, path); - if (access_file (bufp, pathbuf, len_pathbuf, pathret)) { - if (bufp != buf) Xfree (bufp); - return 1; - } - -#ifndef __UNIXOS2__ - /* one last place to look */ - drive = getenv ("HOMEDRIVE"); - if (drive) { - len = strlen (drive) + strlen (path); - if (len < MAX_PATH) bufp = buf; - else bufp = Xmalloc (len + 1); - strcpy (bufp, drive); - strcat (bufp, path); - if (access_file (bufp, pathbuf, len_pathbuf, pathret)) { - if (bufp != buf) Xfree (bufp); - return 1; - } - } - - /* tried everywhere else, go fishing */ -#define C_DRIVE ('C' - 'A') -#define Z_DRIVE ('Z' - 'A') - /* does OS/2 (with or with gcc-emx) have getdrives? */ - drives = _getdrives (); - for (i = C_DRIVE; i <= Z_DRIVE; i++) { /* don't check on A: or B: */ - if ((1 << i) & drives) { - len = 2 + strlen (path); - if (len < MAX_PATH) bufp = buf; - else bufp = Xmalloc (len + 1); - *bufp = 'A' + i; - *(bufp + 1) = ':'; - *(bufp + 2) = '\0'; - strcat (bufp, path); - if (access_file (bufp, pathbuf, len_pathbuf, pathret)) { - if (bufp != buf) Xfree (bufp); - return 1; - } - } - } -#endif - return 0; -} - -int _XOpenFile(path, flags) - _Xconst char* path; - int flags; -{ - char buf[MAX_PATH]; - char* bufp = NULL; - int ret = -1; - UINT olderror = SetErrorMode (SEM_FAILCRITICALERRORS); - - if (AccessFile (path, buf, MAX_PATH, &bufp)) - ret = open (bufp, flags); - - (void) SetErrorMode (olderror); - - if (bufp != buf) Xfree (bufp); - - return ret; -} - -int _XOpenFileMode(path, flags, mode) - _Xconst char* path; - int flags; - mode_t mode; -{ - char buf[MAX_PATH]; - char* bufp = NULL; - int ret = -1; - UINT olderror = SetErrorMode (SEM_FAILCRITICALERRORS); - - if (AccessFile (path, buf, MAX_PATH, &bufp)) - ret = open (bufp, flags, mode); - - (void) SetErrorMode (olderror); - - if (bufp != buf) Xfree (bufp); - - return ret; -} - -void* _XFopenFile(path, mode) - _Xconst char* path; - _Xconst char* mode; -{ - char buf[MAX_PATH]; - char* bufp = NULL; - void* ret = NULL; - UINT olderror = SetErrorMode (SEM_FAILCRITICALERRORS); - - if (AccessFile (path, buf, MAX_PATH, &bufp)) - ret = fopen (bufp, mode); - - (void) SetErrorMode (olderror); - - if (bufp != buf) Xfree (bufp); - - return ret; -} - -int _XAccessFile(path) - _Xconst char* path; -{ - char buf[MAX_PATH]; - char* bufp; - int ret = -1; - UINT olderror = SetErrorMode (SEM_FAILCRITICALERRORS); - - ret = AccessFile (path, buf, MAX_PATH, &bufp); - - (void) SetErrorMode (olderror); - - if (bufp != buf) Xfree (bufp); - - return ret; -} - -#endif - -#ifdef WIN32 -#undef _Xdebug -int _Xdebug = 0; -int *_Xdebug_p = &_Xdebug; -void (**_XCreateMutex_fn_p)(LockInfoPtr) = &_XCreateMutex_fn; -void (**_XFreeMutex_fn_p)(LockInfoPtr) = &_XFreeMutex_fn; -void (**_XLockMutex_fn_p)(LockInfoPtr -#if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE) - , char * /* file */ - , int /* line */ -#endif - ) = &_XLockMutex_fn; -void (**_XUnlockMutex_fn_p)(LockInfoPtr -#if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE) - , char * /* file */ - , int /* line */ -#endif - ) = &_XUnlockMutex_fn; -LockInfoPtr *_Xglobal_lock_p = &_Xglobal_lock; -#endif +/* + +Copyright 1985, 1986, 1987, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization +from The Open Group. + +*/ + +/* + * XlibInt.c - Internal support routines for the C subroutine + * interface library (Xlib) to the X Window System Protocol V11.0. + */ + +#ifdef WIN32 +#define _XLIBINT_ +#include +#endif +#ifdef HAVE_CONFIG_H +#include +#endif +#include "Xlibint.h" +#include "Xprivate.h" +#include +#include +#include +#ifdef WIN32 +#include +#endif + +#ifdef XTHREADS +#include "locking.h" + +/* these pointers get initialized by XInitThreads */ +LockInfoPtr _Xglobal_lock = NULL; +void (*_XCreateMutex_fn)(LockInfoPtr) = NULL; +/* struct _XCVList *(*_XCreateCVL_fn)() = NULL; */ +void (*_XFreeMutex_fn)(LockInfoPtr) = NULL; +void (*_XLockMutex_fn)( + LockInfoPtr /* lock */ +#if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE) + , char * /* file */ + , int /* line */ +#endif + ) = NULL; +void (*_XUnlockMutex_fn)( + LockInfoPtr /* lock */ +#if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE) + , char * /* file */ + , int /* line */ +#endif + ) = NULL; +xthread_t (*_Xthread_self_fn)(void) = NULL; + +#define XThread_Self() ((*_Xthread_self_fn)()) + +#endif /* XTHREADS */ + +/* check for both EAGAIN and EWOULDBLOCK, because some supposedly POSIX + * systems are broken and return EWOULDBLOCK when they should return EAGAIN + */ +#ifdef WIN32 +#define ETEST() (WSAGetLastError() == WSAEWOULDBLOCK) +#else +#ifdef __CYGWIN__ /* Cygwin uses ENOBUFS to signal socket is full */ +#define ETEST() (errno == EAGAIN || errno == EWOULDBLOCK || errno == ENOBUFS) +#else +#if defined(EAGAIN) && defined(EWOULDBLOCK) +#define ETEST() (errno == EAGAIN || errno == EWOULDBLOCK) +#else +#ifdef EAGAIN +#define ETEST() (errno == EAGAIN) +#else +#define ETEST() (errno == EWOULDBLOCK) +#endif /* EAGAIN */ +#endif /* EAGAIN && EWOULDBLOCK */ +#endif /* __CYGWIN__ */ +#endif /* WIN32 */ + +#ifdef WIN32 +#define ECHECK(err) (WSAGetLastError() == err) +#define ESET(val) WSASetLastError(val) +#else +#ifdef __UNIXOS2__ +#define ECHECK(err) (errno == err) +#define ESET(val) +#else +#define ECHECK(err) (errno == err) +#define ESET(val) errno = val +#endif +#endif + +#if defined(LOCALCONN) || defined(LACHMAN) +#ifdef EMSGSIZE +#define ESZTEST() (ECHECK(EMSGSIZE) || ECHECK(ERANGE)) +#else +#define ESZTEST() ECHECK(ERANGE) +#endif +#else +#ifdef EMSGSIZE +#define ESZTEST() ECHECK(EMSGSIZE) +#endif +#endif + +#ifdef __UNIXOS2__ +#include +#define MAX_PATH _POSIX_PATH_MAX +#endif + +/* + * The following routines are internal routines used by Xlib for protocol + * packet transmission and reception. + * + * _XIOError(Display *) will be called if any sort of system call error occurs. + * This is assumed to be a fatal condition, i.e., XIOError should not return. + * + * _XError(Display *, xError *) will be called whenever an X_Error event is + * received. This is not assumed to be a fatal condition, i.e., it is + * acceptable for this procedure to return. However, XError should NOT + * perform any operations (directly or indirectly) on the DISPLAY. + * + * Routines declared with a return type of 'Status' return 0 on failure, + * and non 0 on success. Routines with no declared return type don't + * return anything. Whenever possible routines that create objects return + * the object they have created. + */ + +#define POLLFD_CACHE_SIZE 5 + +#if _WIN32_WINNT < _WIN32_WINNT_VISTA +struct pollfd { + + SOCKET fd; + SHORT events; + SHORT revents; + +}; +#define POLLRDNORM 0x0100 +#define POLLRDBAND 0x0200 +#define POLLIN (POLLRDNORM | POLLRDBAND) +#endif + +/* initialize the struct array passed to poll() below */ +Bool _XPollfdCacheInit( + Display *dpy) +{ +#ifdef USE_POLL + struct pollfd *pfp; + + pfp = (struct pollfd *)Xmalloc(POLLFD_CACHE_SIZE * sizeof(struct pollfd)); + if (!pfp) + return False; + pfp[0].fd = dpy->fd; + pfp[0].events = POLLIN; + + dpy->filedes = (XPointer)pfp; +#endif + return True; +} + +void _XPollfdCacheAdd( + Display *dpy, + int fd) +{ +#ifdef USE_POLL + struct pollfd *pfp = (struct pollfd *)dpy->filedes; + + if (dpy->im_fd_length <= POLLFD_CACHE_SIZE) { + pfp[dpy->im_fd_length].fd = fd; + pfp[dpy->im_fd_length].events = POLLIN; + } +#endif +} + +/* ARGSUSED */ +void _XPollfdCacheDel( + Display *dpy, + int fd) /* not used */ +{ +#ifdef USE_POLL + struct pollfd *pfp = (struct pollfd *)dpy->filedes; + struct _XConnectionInfo *conni; + + /* just recalculate whole list */ + if (dpy->im_fd_length <= POLLFD_CACHE_SIZE) { + int loc = 1; + for (conni = dpy->im_fd_info; conni; conni=conni->next) { + pfp[loc].fd = conni->fd; + pfp[loc].events = POLLIN; + loc++; + } + } +#endif +} + +#ifdef _MSC_VER +#undef min +#define min __min +#endif + +static int sync_hazard(Display *dpy) +{ + unsigned long span = dpy->request - dpy->last_request_read; + unsigned long hazard = min((dpy->bufmax - dpy->buffer) / SIZEOF(xReq), 65535 - 10); + return span >= 65535 - hazard - 10; +} + +static +void sync_while_locked(Display *dpy) +{ +#ifdef XTHREADS + if (dpy->lock) + (*dpy->lock->user_lock_display)(dpy); +#endif + UnlockDisplay(dpy); + SyncHandle(); + InternalLockDisplay(dpy, /* don't skip user locks */ 0); +#ifdef XTHREADS + if (dpy->lock) + (*dpy->lock->user_unlock_display)(dpy); +#endif +} + +void _XSeqSyncFunction( + register Display *dpy) +{ + xGetInputFocusReply rep; + register xReq *req; + + if ((dpy->request - dpy->last_request_read) >= (65535 - BUFSIZE/SIZEOF(xReq))) { + GetEmptyReq(GetInputFocus, req); + (void) _XReply (dpy, (xReply *)&rep, 0, xTrue); + sync_while_locked(dpy); + } else if (sync_hazard(dpy)) + _XSetPrivSyncFunction(dpy); +} + +/* NOTE: only called if !XTHREADS, or when XInitThreads wasn't called. */ +static int +_XPrivSyncFunction (Display *dpy) +{ +#ifdef XTHREADS + assert(!dpy->lock_fns); +#endif + assert(dpy->synchandler == _XPrivSyncFunction); + assert((dpy->flags & XlibDisplayPrivSync) != 0); + dpy->synchandler = dpy->savedsynchandler; + dpy->savedsynchandler = NULL; + dpy->flags &= ~XlibDisplayPrivSync; + if(dpy->synchandler) + dpy->synchandler(dpy); + _XIDHandler(dpy); + _XSeqSyncFunction(dpy); + return 0; +} + +void _XSetPrivSyncFunction(Display *dpy) +{ +#ifdef XTHREADS + if (dpy->lock_fns) + return; +#endif + if (!(dpy->flags & XlibDisplayPrivSync)) { + dpy->savedsynchandler = dpy->synchandler; + dpy->synchandler = _XPrivSyncFunction; + dpy->flags |= XlibDisplayPrivSync; + } +} + +void _XSetSeqSyncFunction(Display *dpy) +{ + if (sync_hazard(dpy)) + _XSetPrivSyncFunction (dpy); +} + +#ifdef LONG64 +void _XRead32( + Display *dpy, + register long *data, + long len) +{ + register int *buf; + register long i; + + if (len) { + (void) _XRead(dpy, (char *)data, len); + i = len >> 2; + buf = (int *)data + i; + data += i; + while (--i >= 0) + *--data = *--buf; + } +} +#endif /* LONG64 */ + +#ifdef WORD64 + +/* + * XXX This is a *really* stupid way of doing this.... + * PACKBUFFERSIZE must be a multiple of 4. + */ + +#define PACKBUFFERSIZE 4096 + + +/* + * _XRead32 - Read bytes from the socket unpacking each 32 bits + * into a long (64 bits on a CRAY computer). + * + */ +static void _doXRead32( + register Display *dpy, + register long *data + register long size, + register char *packbuffer) +{ + long *lpack,*lp; + long mask32 = 0x00000000ffffffff; + long maskw, nwords, i, bits; + + _XReadPad (dpy, packbuffer, size); + + lp = data; + lpack = (long *) packbuffer; + nwords = size >> 2; + bits = 32; + + for(i=0;i> bits; + bits = bits ^32; + if(bits){ + lpack++; + } + } +} + +void _XRead32( + Display *dpy, + long *data, + long len) +{ + char packbuffer[PACKBUFFERSIZE]; + unsigned nunits = PACKBUFFERSIZE >> 2; + + for (; len > PACKBUFFERSIZE; len -= PACKBUFFERSIZE, data += nunits) { + _doXRead32 (dpy, data, PACKBUFFERSIZE, packbuffer); + } + if (len) _doXRead32 (dpy, data, len, packbuffer); +} + + + +/* + * _XRead16 - Read bytes from the socket unpacking each 16 bits + * into a long (64 bits on a CRAY computer). + * + */ +static _doXRead16( + register Display *dpy, + register short *data, + register long size, + char *packbuffer) +{ + long *lpack,*lp; + long mask16 = 0x000000000000ffff; + long maskw, nwords, i, bits; + + (void) _XRead(dpy,packbuffer,size); /* don't do a padded read... */ + + lp = (long *) data; + lpack = (long *) packbuffer; + nwords = size >> 1; /* number of 16 bit words to be unpacked */ + bits = 48; + for(i=0;i> bits; + bits -= 16; + if(bits < 0){ + lpack++; + bits = 48; + } + } +} + +void _XRead16( + Display *dpy, + short *data, + long len) +{ + char packbuffer[PACKBUFFERSIZE]; + unsigned nunits = PACKBUFFERSIZE >> 1; + + for (; len > PACKBUFFERSIZE; len -= PACKBUFFERSIZE, data += nunits) { + _doXRead16 (dpy, data, PACKBUFFERSIZE, packbuffer); + } + if (len) _doXRead16 (dpy, data, len, packbuffer); +} + +void _XRead16Pad( + Display *dpy, + short *data, + long size) +{ + int slop = (size & 3); + short slopbuf[3]; + + _XRead16 (dpy, data, size); + if (slop > 0) { + _XRead16 (dpy, slopbuf, 4 - slop); + } +} +#endif /* WORD64 */ + +/* + * The hard part about this is that we only get 16 bits from a reply. + * We have three values that will march along, with the following invariant: + * dpy->last_request_read <= rep->sequenceNumber <= dpy->request + * We have to keep + * dpy->request - dpy->last_request_read < 2^16 + * or else we won't know for sure what value to use in events. We do this + * by forcing syncs when we get close. + */ + +unsigned long +_XSetLastRequestRead( + register Display *dpy, + register xGenericReply *rep) +{ + register unsigned long newseq, lastseq; + + lastseq = dpy->last_request_read; + /* + * KeymapNotify has no sequence number, but is always guaranteed + * to immediately follow another event, except when generated via + * SendEvent (hmmm). + */ + if ((rep->type & 0x7f) == KeymapNotify) + return(lastseq); + + newseq = (lastseq & ~((unsigned long)0xffff)) | rep->sequenceNumber; + + if (newseq < lastseq) { + newseq += 0x10000; + if (newseq > dpy->request) { + (void) fprintf (stderr, + "Xlib: sequence lost (0x%lx > 0x%lx) in reply type 0x%x!\n", + newseq, dpy->request, + (unsigned int) rep->type); + newseq -= 0x10000; + } + } + + dpy->last_request_read = newseq; + return(newseq); +} + +/* + * Support for internal connections, such as an IM might use. + * By Stephen Gildea, X Consortium, September 1993 + */ + +/* _XRegisterInternalConnection + * Each IM (or Xlib extension) that opens a file descriptor that Xlib should + * include in its select/poll mask must call this function to register the + * fd with Xlib. Any XConnectionWatchProc registered by XAddConnectionWatch + * will also be called. + * + * Whenever Xlib detects input available on fd, it will call callback + * with call_data to process it. If non-Xlib code calls select/poll + * and detects input available, it must call XProcessInternalConnection, + * which will call the associated callback. + * + * Non-Xlib code can learn about these additional fds by calling + * XInternalConnectionNumbers or, more typically, by registering + * a XConnectionWatchProc with XAddConnectionWatch + * to be called when fds are registered or unregistered. + * + * Returns True if registration succeeded, False if not, typically + * because could not allocate memory. + * Assumes Display locked when called. + */ +Status +_XRegisterInternalConnection( + Display* dpy, + int fd, + _XInternalConnectionProc callback, + XPointer call_data +) +{ + struct _XConnectionInfo *new_conni, **iptr; + struct _XConnWatchInfo *watchers; + XPointer *wd; + + new_conni = (struct _XConnectionInfo*)Xmalloc(sizeof(struct _XConnectionInfo)); + if (!new_conni) + return 0; + new_conni->watch_data = (XPointer *)Xmalloc(dpy->watcher_count * sizeof(XPointer)); + if (!new_conni->watch_data) { + Xfree(new_conni); + return 0; + } + new_conni->fd = fd; + new_conni->read_callback = callback; + new_conni->call_data = call_data; + new_conni->next = NULL; + /* link new structure onto end of list */ + for (iptr = &dpy->im_fd_info; *iptr; iptr = &(*iptr)->next) + ; + *iptr = new_conni; + dpy->im_fd_length++; + _XPollfdCacheAdd(dpy, fd); + + for (watchers=dpy->conn_watchers, wd=new_conni->watch_data; + watchers; + watchers=watchers->next, wd++) { + *wd = NULL; /* for cleanliness */ + (*watchers->fn) (dpy, watchers->client_data, fd, True, wd); + } + + return 1; +} + +/* _XUnregisterInternalConnection + * Each IM (or Xlib extension) that closes a file descriptor previously + * registered with _XRegisterInternalConnection must call this function. + * Any XConnectionWatchProc registered by XAddConnectionWatch + * will also be called. + * + * Assumes Display locked when called. + */ +void +_XUnregisterInternalConnection( + Display* dpy, + int fd +) +{ + struct _XConnectionInfo *info_list, **prev; + struct _XConnWatchInfo *watch; + XPointer *wd; + + for (prev = &dpy->im_fd_info; (info_list = *prev); + prev = &info_list->next) { + if (info_list->fd == fd) { + *prev = info_list->next; + dpy->im_fd_length--; + for (watch=dpy->conn_watchers, wd=info_list->watch_data; + watch; + watch=watch->next, wd++) { + (*watch->fn) (dpy, watch->client_data, fd, False, wd); + } + if (info_list->watch_data) + Xfree (info_list->watch_data); + Xfree (info_list); + break; + } + } + _XPollfdCacheDel(dpy, fd); +} + +/* XInternalConnectionNumbers + * Returns an array of fds and an array of corresponding call data. + * Typically a XConnectionWatchProc registered with XAddConnectionWatch + * will be used instead of this function to discover + * additional fds to include in the select/poll mask. + * + * The list is allocated with Xmalloc and should be freed by the caller + * with Xfree; + */ +Status +XInternalConnectionNumbers( + Display *dpy, + int **fd_return, + int *count_return +) +{ + int count; + struct _XConnectionInfo *info_list; + int *fd_list; + + LockDisplay(dpy); + count = 0; + for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) + count++; + fd_list = (int*) Xmalloc (count * sizeof(int)); + if (!fd_list) { + UnlockDisplay(dpy); + return 0; + } + count = 0; + for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) { + fd_list[count] = info_list->fd; + count++; + } + UnlockDisplay(dpy); + + *fd_return = fd_list; + *count_return = count; + return 1; +} + +void _XProcessInternalConnection( + Display *dpy, + struct _XConnectionInfo *conn_info) +{ + dpy->flags |= XlibDisplayProcConni; + UnlockDisplay(dpy); + (*conn_info->read_callback) (dpy, conn_info->fd, conn_info->call_data); + LockDisplay(dpy); + dpy->flags &= ~XlibDisplayProcConni; +} + +/* XProcessInternalConnection + * Call the _XInternalConnectionProc registered by _XRegisterInternalConnection + * for this fd. + * The Display is NOT locked during the call. + */ +void +XProcessInternalConnection( + Display* dpy, + int fd +) +{ + struct _XConnectionInfo *info_list; + + LockDisplay(dpy); + for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) { + if (info_list->fd == fd) { + _XProcessInternalConnection(dpy, info_list); + break; + } + } + UnlockDisplay(dpy); +} + +/* XAddConnectionWatch + * Register a callback to be called whenever _XRegisterInternalConnection + * or _XUnregisterInternalConnection is called. + * Callbacks are called with the Display locked. + * If any connections are already registered, the callback is immediately + * called for each of them. + */ +Status +XAddConnectionWatch( + Display* dpy, + XConnectionWatchProc callback, + XPointer client_data +) +{ + struct _XConnWatchInfo *new_watcher, **wptr; + struct _XConnectionInfo *info_list; + XPointer *wd_array; + + LockDisplay(dpy); + + /* allocate new watch data */ + for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) { + wd_array = (XPointer *)Xrealloc((char *)info_list->watch_data, + (dpy->watcher_count + 1) * + sizeof(XPointer)); + if (!wd_array) { + UnlockDisplay(dpy); + return 0; + } + info_list->watch_data = wd_array; + wd_array[dpy->watcher_count] = NULL; /* for cleanliness */ + } + + new_watcher = (struct _XConnWatchInfo*)Xmalloc(sizeof(struct _XConnWatchInfo)); + if (!new_watcher) { + UnlockDisplay(dpy); + return 0; + } + new_watcher->fn = callback; + new_watcher->client_data = client_data; + new_watcher->next = NULL; + + /* link new structure onto end of list */ + for (wptr = &dpy->conn_watchers; *wptr; wptr = &(*wptr)->next) + ; + *wptr = new_watcher; + dpy->watcher_count++; + + /* call new watcher on all currently registered fds */ + for (info_list=dpy->im_fd_info; info_list; info_list=info_list->next) { + (*callback) (dpy, client_data, info_list->fd, True, + info_list->watch_data + dpy->watcher_count - 1); + } + + UnlockDisplay(dpy); + return 1; +} + +/* XRemoveConnectionWatch + * Unregister a callback registered by XAddConnectionWatch. + * Both callback and client_data must match what was passed to + * XAddConnectionWatch. + */ +void +XRemoveConnectionWatch( + Display* dpy, + XConnectionWatchProc callback, + XPointer client_data +) +{ + struct _XConnWatchInfo *watch; + struct _XConnWatchInfo *previous = NULL; + struct _XConnectionInfo *conni; + int counter = 0; + + LockDisplay(dpy); + for (watch=dpy->conn_watchers; watch; watch=watch->next) { + if (watch->fn == callback && watch->client_data == client_data) { + if (previous) + previous->next = watch->next; + else + dpy->conn_watchers = watch->next; + Xfree (watch); + dpy->watcher_count--; + /* remove our watch_data for each connection */ + for (conni=dpy->im_fd_info; conni; conni=conni->next) { + /* don't bother realloc'ing; these arrays are small anyway */ + /* overlapping */ + memmove(conni->watch_data+counter, + conni->watch_data+counter+1, + dpy->watcher_count - counter); + } + break; + } + previous = watch; + counter++; + } + UnlockDisplay(dpy); +} + +/* end of internal connections support */ + +/* Cookie jar implementation + dpy->cookiejar is a linked list. _XEnq receives the events but leaves + them in the normal EQ. _XStoreEvent returns the cookie event (minus + data pointer) and adds it to the cookiejar. _XDeq just removes + the entry like any other event but resets the data pointer for + cookie events (to avoid double-free, the memory is re-used by Xlib). + + _XFetchEventCookie (called from XGetEventData) removes a cookie from the + jar. _XFreeEventCookies removes all unclaimed cookies from the jar + (called by XNextEvent). + + _XFreeDisplayStructure calls _XFreeEventCookies for each cookie in the + normal EQ. + */ + +#include "utlist.h" +struct stored_event { + XGenericEventCookie ev; + struct stored_event *prev; + struct stored_event *next; +}; + +Bool +_XIsEventCookie(Display *dpy, XEvent *ev) +{ + return (ev->xcookie.type == GenericEvent && + dpy->generic_event_vec[ev->xcookie.extension & 0x7F] != NULL); +} + +/** + * Free all events in the event list. + */ +void +_XFreeEventCookies(Display *dpy) +{ + struct stored_event **head, *e, *tmp; + + if (!dpy->cookiejar) + return; + + head = (struct stored_event**)&dpy->cookiejar; + + DL_FOREACH_SAFE(*head, e, tmp) { + if (dpy->cookiejar == e) + dpy->cookiejar = NULL; + XFree(e->ev.data); + XFree(e); + } +} + +/** + * Add an event to the display's event list. This event must be freed on the + * next call to XNextEvent(). + */ +void +_XStoreEventCookie(Display *dpy, XEvent *event) +{ + XGenericEventCookie* cookie = &event->xcookie; + struct stored_event **head, *add; + + if (!_XIsEventCookie(dpy, event)) + return; + + head = (struct stored_event**)(&dpy->cookiejar); + + add = Xmalloc(sizeof(struct stored_event)); + if (!add) { + ESET(ENOMEM); + _XIOError(dpy); + } + add->ev = *cookie; + DL_APPEND(*head, add); + cookie->data = NULL; /* don't return data yet, must be claimed */ +} + +/** + * Return the event with the given cookie and remove it from the list. + */ +Bool +_XFetchEventCookie(Display *dpy, XGenericEventCookie* ev) +{ + Bool ret = False; + struct stored_event **head, *event; + head = (struct stored_event**)&dpy->cookiejar; + + if (!_XIsEventCookie(dpy, (XEvent*)ev)) + return ret; + + DL_FOREACH(*head, event) { + if (event->ev.cookie == ev->cookie && + event->ev.extension == ev->extension && + event->ev.evtype == ev->evtype) { + *ev = event->ev; + DL_DELETE(*head, event); + Xfree(event); + ret = True; + break; + } + } + + return ret; +} + +Bool +_XCopyEventCookie(Display *dpy, XGenericEventCookie *in, XGenericEventCookie *out) +{ + Bool ret = False; + int extension; + + if (!_XIsEventCookie(dpy, (XEvent*)in) || !out) + return ret; + + extension = in->extension & 0x7F; + + if (!dpy->generic_event_copy_vec[extension]) + return ret; + + ret = ((*dpy->generic_event_copy_vec[extension])(dpy, in, out)); + out->cookie = ret ? ++dpy->next_cookie : 0; + return ret; +} + + +/* + * _XEnq - Place event packets on the display's queue. + * note that no squishing of move events in V11, since there + * is pointer motion hints.... + */ +void _XEnq( + register Display *dpy, + register xEvent *event) +{ + register _XQEvent *qelt; + int type, extension; + + if ((qelt = dpy->qfree)) { + /* If dpy->qfree is non-NULL do this, else malloc a new one. */ + dpy->qfree = qelt->next; + } + else if ((qelt = + (_XQEvent *) Xmalloc((unsigned)sizeof(_XQEvent))) == NULL) { + /* Malloc call failed! */ + ESET(ENOMEM); + _XIOError(dpy); + } + qelt->next = NULL; + + type = event->u.u.type & 0177; + extension = ((xGenericEvent*)event)->extension; + + qelt->event.type = type; + /* If an extension has registerd a generic_event_vec handler, then + * it can handle event cookies. Otherwise, proceed with the normal + * event handlers. + * + * If the generic_event_vec is called, qelt->event is a event cookie + * with the data pointer and the "free" pointer set. Data pointer is + * some memory allocated by the extension. + */ + if (type == GenericEvent && dpy->generic_event_vec[extension & 0x7F]) { + XGenericEventCookie *cookie = &qelt->event.xcookie; + (*dpy->generic_event_vec[extension & 0x7F])(dpy, cookie, event); + cookie->cookie = ++dpy->next_cookie; + + qelt->qserial_num = dpy->next_event_serial_num++; + if (dpy->tail) dpy->tail->next = qelt; + else dpy->head = qelt; + + dpy->tail = qelt; + dpy->qlen++; + } else if ((*dpy->event_vec[type])(dpy, &qelt->event, event)) { + qelt->qserial_num = dpy->next_event_serial_num++; + if (dpy->tail) dpy->tail->next = qelt; + else dpy->head = qelt; + + dpy->tail = qelt; + dpy->qlen++; + } else { + /* ignored, or stashed away for many-to-one compression */ + qelt->next = dpy->qfree; + dpy->qfree = qelt; + } +} + +/* + * _XDeq - Remove event packet from the display's queue. + */ +void _XDeq( + register Display *dpy, + register _XQEvent *prev, /* element before qelt */ + register _XQEvent *qelt) /* element to be unlinked */ +{ + if (prev) { + if ((prev->next = qelt->next) == NULL) + dpy->tail = prev; + } else { + /* no prev, so removing first elt */ + if ((dpy->head = qelt->next) == NULL) + dpy->tail = NULL; + } + qelt->qserial_num = 0; + qelt->next = dpy->qfree; + dpy->qfree = qelt; + dpy->qlen--; + + if (_XIsEventCookie(dpy, &qelt->event)) { + XGenericEventCookie* cookie = &qelt->event.xcookie; + /* dpy->qfree is re-used, reset memory to avoid double free on + * _XFreeDisplayStructure */ + cookie->data = NULL; + } +} + +/* + * EventToWire in separate file in that often not needed. + */ + +/*ARGSUSED*/ +Bool +_XUnknownWireEvent( + register Display *dpy, /* pointer to display structure */ + register XEvent *re, /* pointer to where event should be reformatted */ + register xEvent *event) /* wire protocol event */ +{ +#ifdef notdef + (void) fprintf(stderr, + "Xlib: unhandled wire event! event number = %d, display = %x\n.", + event->u.u.type, dpy); +#endif + return(False); +} + +Bool +_XUnknownWireEventCookie( + Display *dpy, /* pointer to display structure */ + XGenericEventCookie *re, /* pointer to where event should be reformatted */ + xEvent *event) /* wire protocol event */ +{ +#ifdef notdef + fprintf(stderr, + "Xlib: unhandled wire cookie event! extension number = %d, display = %x\n.", + ((xGenericEvent*)event)->extension, dpy); +#endif + return(False); +} + +Bool +_XUnknownCopyEventCookie( + Display *dpy, /* pointer to display structure */ + XGenericEventCookie *in, /* source */ + XGenericEventCookie *out) /* destination */ +{ +#ifdef notdef + fprintf(stderr, + "Xlib: unhandled cookie event copy! extension number = %d, display = %x\n.", + in->extension, dpy); +#endif + return(False); +} + +/*ARGSUSED*/ +Status +_XUnknownNativeEvent( + register Display *dpy, /* pointer to display structure */ + register XEvent *re, /* pointer to where event should be reformatted */ + register xEvent *event) /* wire protocol event */ +{ +#ifdef notdef + (void) fprintf(stderr, + "Xlib: unhandled native event! event number = %d, display = %x\n.", + re->type, dpy); +#endif + return(0); +} +/* + * reformat a wire event into an XEvent structure of the right type. + */ +Bool +_XWireToEvent( + register Display *dpy, /* pointer to display structure */ + register XEvent *re, /* pointer to where event should be reformatted */ + register xEvent *event) /* wire protocol event */ +{ + + re->type = event->u.u.type & 0x7f; + ((XAnyEvent *)re)->serial = _XSetLastRequestRead(dpy, + (xGenericReply *)event); + ((XAnyEvent *)re)->send_event = ((event->u.u.type & 0x80) != 0); + ((XAnyEvent *)re)->display = dpy; + + /* Ignore the leading bit of the event type since it is set when a + client sends an event rather than the server. */ + + switch (event-> u.u.type & 0177) { + case KeyPress: + case KeyRelease: + { + register XKeyEvent *ev = (XKeyEvent*) re; + ev->root = event->u.keyButtonPointer.root; + ev->window = event->u.keyButtonPointer.event; + ev->subwindow = event->u.keyButtonPointer.child; + ev->time = event->u.keyButtonPointer.time; + ev->x = cvtINT16toInt(event->u.keyButtonPointer.eventX); + ev->y = cvtINT16toInt(event->u.keyButtonPointer.eventY); + ev->x_root = cvtINT16toInt(event->u.keyButtonPointer.rootX); + ev->y_root = cvtINT16toInt(event->u.keyButtonPointer.rootY); + ev->state = event->u.keyButtonPointer.state; + ev->same_screen = event->u.keyButtonPointer.sameScreen; + ev->keycode = event->u.u.detail; + } + break; + case ButtonPress: + case ButtonRelease: + { + register XButtonEvent *ev = (XButtonEvent *) re; + ev->root = event->u.keyButtonPointer.root; + ev->window = event->u.keyButtonPointer.event; + ev->subwindow = event->u.keyButtonPointer.child; + ev->time = event->u.keyButtonPointer.time; + ev->x = cvtINT16toInt(event->u.keyButtonPointer.eventX); + ev->y = cvtINT16toInt(event->u.keyButtonPointer.eventY); + ev->x_root = cvtINT16toInt(event->u.keyButtonPointer.rootX); + ev->y_root = cvtINT16toInt(event->u.keyButtonPointer.rootY); + ev->state = event->u.keyButtonPointer.state; + ev->same_screen = event->u.keyButtonPointer.sameScreen; + ev->button = event->u.u.detail; + } + break; + case MotionNotify: + { + register XMotionEvent *ev = (XMotionEvent *)re; + ev->root = event->u.keyButtonPointer.root; + ev->window = event->u.keyButtonPointer.event; + ev->subwindow = event->u.keyButtonPointer.child; + ev->time = event->u.keyButtonPointer.time; + ev->x = cvtINT16toInt(event->u.keyButtonPointer.eventX); + ev->y = cvtINT16toInt(event->u.keyButtonPointer.eventY); + ev->x_root = cvtINT16toInt(event->u.keyButtonPointer.rootX); + ev->y_root = cvtINT16toInt(event->u.keyButtonPointer.rootY); + ev->state = event->u.keyButtonPointer.state; + ev->same_screen = event->u.keyButtonPointer.sameScreen; + ev->is_hint = event->u.u.detail; + } + break; + case EnterNotify: + case LeaveNotify: + { + register XCrossingEvent *ev = (XCrossingEvent *) re; + ev->root = event->u.enterLeave.root; + ev->window = event->u.enterLeave.event; + ev->subwindow = event->u.enterLeave.child; + ev->time = event->u.enterLeave.time; + ev->x = cvtINT16toInt(event->u.enterLeave.eventX); + ev->y = cvtINT16toInt(event->u.enterLeave.eventY); + ev->x_root = cvtINT16toInt(event->u.enterLeave.rootX); + ev->y_root = cvtINT16toInt(event->u.enterLeave.rootY); + ev->state = event->u.enterLeave.state; + ev->mode = event->u.enterLeave.mode; + ev->same_screen = (event->u.enterLeave.flags & + ELFlagSameScreen) && True; + ev->focus = (event->u.enterLeave.flags & + ELFlagFocus) && True; + ev->detail = event->u.u.detail; + } + break; + case FocusIn: + case FocusOut: + { + register XFocusChangeEvent *ev = (XFocusChangeEvent *) re; + ev->window = event->u.focus.window; + ev->mode = event->u.focus.mode; + ev->detail = event->u.u.detail; + } + break; + case KeymapNotify: + { + register XKeymapEvent *ev = (XKeymapEvent *) re; + ev->window = None; + memcpy(&ev->key_vector[1], + (char *)((xKeymapEvent *) event)->map, + sizeof (((xKeymapEvent *) event)->map)); + } + break; + case Expose: + { + register XExposeEvent *ev = (XExposeEvent *) re; + ev->window = event->u.expose.window; + ev->x = event->u.expose.x; + ev->y = event->u.expose.y; + ev->width = event->u.expose.width; + ev->height = event->u.expose.height; + ev->count = event->u.expose.count; + } + break; + case GraphicsExpose: + { + register XGraphicsExposeEvent *ev = + (XGraphicsExposeEvent *) re; + ev->drawable = event->u.graphicsExposure.drawable; + ev->x = event->u.graphicsExposure.x; + ev->y = event->u.graphicsExposure.y; + ev->width = event->u.graphicsExposure.width; + ev->height = event->u.graphicsExposure.height; + ev->count = event->u.graphicsExposure.count; + ev->major_code = event->u.graphicsExposure.majorEvent; + ev->minor_code = event->u.graphicsExposure.minorEvent; + } + break; + case NoExpose: + { + register XNoExposeEvent *ev = (XNoExposeEvent *) re; + ev->drawable = event->u.noExposure.drawable; + ev->major_code = event->u.noExposure.majorEvent; + ev->minor_code = event->u.noExposure.minorEvent; + } + break; + case VisibilityNotify: + { + register XVisibilityEvent *ev = (XVisibilityEvent *) re; + ev->window = event->u.visibility.window; + ev->state = event->u.visibility.state; + } + break; + case CreateNotify: + { + register XCreateWindowEvent *ev = + (XCreateWindowEvent *) re; + ev->window = event->u.createNotify.window; + ev->parent = event->u.createNotify.parent; + ev->x = cvtINT16toInt(event->u.createNotify.x); + ev->y = cvtINT16toInt(event->u.createNotify.y); + ev->width = event->u.createNotify.width; + ev->height = event->u.createNotify.height; + ev->border_width = event->u.createNotify.borderWidth; + ev->override_redirect = event->u.createNotify.override; + } + break; + case DestroyNotify: + { + register XDestroyWindowEvent *ev = + (XDestroyWindowEvent *) re; + ev->window = event->u.destroyNotify.window; + ev->event = event->u.destroyNotify.event; + } + break; + case UnmapNotify: + { + register XUnmapEvent *ev = (XUnmapEvent *) re; + ev->window = event->u.unmapNotify.window; + ev->event = event->u.unmapNotify.event; + ev->from_configure = event->u.unmapNotify.fromConfigure; + } + break; + case MapNotify: + { + register XMapEvent *ev = (XMapEvent *) re; + ev->window = event->u.mapNotify.window; + ev->event = event->u.mapNotify.event; + ev->override_redirect = event->u.mapNotify.override; + } + break; + case MapRequest: + { + register XMapRequestEvent *ev = (XMapRequestEvent *) re; + ev->window = event->u.mapRequest.window; + ev->parent = event->u.mapRequest.parent; + } + break; + case ReparentNotify: + { + register XReparentEvent *ev = (XReparentEvent *) re; + ev->event = event->u.reparent.event; + ev->window = event->u.reparent.window; + ev->parent = event->u.reparent.parent; + ev->x = cvtINT16toInt(event->u.reparent.x); + ev->y = cvtINT16toInt(event->u.reparent.y); + ev->override_redirect = event->u.reparent.override; + } + break; + case ConfigureNotify: + { + register XConfigureEvent *ev = (XConfigureEvent *) re; + ev->event = event->u.configureNotify.event; + ev->window = event->u.configureNotify.window; + ev->above = event->u.configureNotify.aboveSibling; + ev->x = cvtINT16toInt(event->u.configureNotify.x); + ev->y = cvtINT16toInt(event->u.configureNotify.y); + ev->width = event->u.configureNotify.width; + ev->height = event->u.configureNotify.height; + ev->border_width = event->u.configureNotify.borderWidth; + ev->override_redirect = event->u.configureNotify.override; + } + break; + case ConfigureRequest: + { + register XConfigureRequestEvent *ev = + (XConfigureRequestEvent *) re; + ev->window = event->u.configureRequest.window; + ev->parent = event->u.configureRequest.parent; + ev->above = event->u.configureRequest.sibling; + ev->x = cvtINT16toInt(event->u.configureRequest.x); + ev->y = cvtINT16toInt(event->u.configureRequest.y); + ev->width = event->u.configureRequest.width; + ev->height = event->u.configureRequest.height; + ev->border_width = event->u.configureRequest.borderWidth; + ev->value_mask = event->u.configureRequest.valueMask; + ev->detail = event->u.u.detail; + } + break; + case GravityNotify: + { + register XGravityEvent *ev = (XGravityEvent *) re; + ev->window = event->u.gravity.window; + ev->event = event->u.gravity.event; + ev->x = cvtINT16toInt(event->u.gravity.x); + ev->y = cvtINT16toInt(event->u.gravity.y); + } + break; + case ResizeRequest: + { + register XResizeRequestEvent *ev = + (XResizeRequestEvent *) re; + ev->window = event->u.resizeRequest.window; + ev->width = event->u.resizeRequest.width; + ev->height = event->u.resizeRequest.height; + } + break; + case CirculateNotify: + { + register XCirculateEvent *ev = (XCirculateEvent *) re; + ev->window = event->u.circulate.window; + ev->event = event->u.circulate.event; + ev->place = event->u.circulate.place; + } + break; + case CirculateRequest: + { + register XCirculateRequestEvent *ev = + (XCirculateRequestEvent *) re; + ev->window = event->u.circulate.window; + ev->parent = event->u.circulate.event; + ev->place = event->u.circulate.place; + } + break; + case PropertyNotify: + { + register XPropertyEvent *ev = (XPropertyEvent *) re; + ev->window = event->u.property.window; + ev->atom = event->u.property.atom; + ev->time = event->u.property.time; + ev->state = event->u.property.state; + } + break; + case SelectionClear: + { + register XSelectionClearEvent *ev = + (XSelectionClearEvent *) re; + ev->window = event->u.selectionClear.window; + ev->selection = event->u.selectionClear.atom; + ev->time = event->u.selectionClear.time; + } + break; + case SelectionRequest: + { + register XSelectionRequestEvent *ev = + (XSelectionRequestEvent *) re; + ev->owner = event->u.selectionRequest.owner; + ev->requestor = event->u.selectionRequest.requestor; + ev->selection = event->u.selectionRequest.selection; + ev->target = event->u.selectionRequest.target; + ev->property = event->u.selectionRequest.property; + ev->time = event->u.selectionRequest.time; + } + break; + case SelectionNotify: + { + register XSelectionEvent *ev = (XSelectionEvent *) re; + ev->requestor = event->u.selectionNotify.requestor; + ev->selection = event->u.selectionNotify.selection; + ev->target = event->u.selectionNotify.target; + ev->property = event->u.selectionNotify.property; + ev->time = event->u.selectionNotify.time; + } + break; + case ColormapNotify: + { + register XColormapEvent *ev = (XColormapEvent *) re; + ev->window = event->u.colormap.window; + ev->colormap = event->u.colormap.colormap; + ev->new = event->u.colormap.new; + ev->state = event->u.colormap.state; + } + break; + case ClientMessage: + { + register int i; + register XClientMessageEvent *ev + = (XClientMessageEvent *) re; + ev->window = event->u.clientMessage.window; + ev->format = event->u.u.detail; + switch (ev->format) { + case 8: + ev->message_type = event->u.clientMessage.u.b.type; + for (i = 0; i < 20; i++) + ev->data.b[i] = event->u.clientMessage.u.b.bytes[i]; + break; + case 16: + ev->message_type = event->u.clientMessage.u.s.type; + ev->data.s[0] = cvtINT16toShort(event->u.clientMessage.u.s.shorts0); + ev->data.s[1] = cvtINT16toShort(event->u.clientMessage.u.s.shorts1); + ev->data.s[2] = cvtINT16toShort(event->u.clientMessage.u.s.shorts2); + ev->data.s[3] = cvtINT16toShort(event->u.clientMessage.u.s.shorts3); + ev->data.s[4] = cvtINT16toShort(event->u.clientMessage.u.s.shorts4); + ev->data.s[5] = cvtINT16toShort(event->u.clientMessage.u.s.shorts5); + ev->data.s[6] = cvtINT16toShort(event->u.clientMessage.u.s.shorts6); + ev->data.s[7] = cvtINT16toShort(event->u.clientMessage.u.s.shorts7); + ev->data.s[8] = cvtINT16toShort(event->u.clientMessage.u.s.shorts8); + ev->data.s[9] = cvtINT16toShort(event->u.clientMessage.u.s.shorts9); + break; + case 32: + ev->message_type = event->u.clientMessage.u.l.type; + ev->data.l[0] = cvtINT32toLong(event->u.clientMessage.u.l.longs0); + ev->data.l[1] = cvtINT32toLong(event->u.clientMessage.u.l.longs1); + ev->data.l[2] = cvtINT32toLong(event->u.clientMessage.u.l.longs2); + ev->data.l[3] = cvtINT32toLong(event->u.clientMessage.u.l.longs3); + ev->data.l[4] = cvtINT32toLong(event->u.clientMessage.u.l.longs4); + break; + default: /* XXX should never occur */ + break; + } + } + break; + case MappingNotify: + { + register XMappingEvent *ev = (XMappingEvent *)re; + ev->window = 0; + ev->first_keycode = event->u.mappingNotify.firstKeyCode; + ev->request = event->u.mappingNotify.request; + ev->count = event->u.mappingNotify.count; + } + break; + default: + return(_XUnknownWireEvent(dpy, re, event)); + } + return(True); +} + + +/* + * _XDefaultIOError - Default fatal system error reporting routine. Called + * when an X internal system error is encountered. + */ +int _XDefaultIOError( + Display *dpy) +{ + if (ECHECK(EPIPE)) { + (void) fprintf (stderr, + "X connection to %s broken (explicit kill or server shutdown).\r\n", + DisplayString (dpy)); + } else { + (void) fprintf (stderr, + "XIO: fatal IO error %d (%s) on X server \"%s\"\r\n", +#ifdef WIN32 + WSAGetLastError(), strerror(WSAGetLastError()), +#else + errno, strerror (errno), +#endif + DisplayString (dpy)); + (void) fprintf (stderr, + " after %lu requests (%lu known processed) with %d events remaining.\r\n", + NextRequest(dpy) - 1, LastKnownRequestProcessed(dpy), + QLength(dpy)); + + } + exit(1); + return(0); /* dummy - function should never return */ +} + + +static int _XPrintDefaultError( + Display *dpy, + XErrorEvent *event, + FILE *fp) +{ + char buffer[BUFSIZ]; + char mesg[BUFSIZ]; + char number[32]; + const char *mtype = "XlibMessage"; + register _XExtension *ext = (_XExtension *)NULL; + _XExtension *bext = (_XExtension *)NULL; + XGetErrorText(dpy, event->error_code, buffer, BUFSIZ); + XGetErrorDatabaseText(dpy, mtype, "XError", "X Error", mesg, BUFSIZ); + (void) fprintf(fp, "%s: %s\n ", mesg, buffer); + XGetErrorDatabaseText(dpy, mtype, "MajorCode", "Request Major code %d", + mesg, BUFSIZ); + (void) fprintf(fp, mesg, event->request_code); + if (event->request_code < 128) { + sprintf(number, "%d", event->request_code); + XGetErrorDatabaseText(dpy, "XRequest", number, "", buffer, BUFSIZ); + } else { + for (ext = dpy->ext_procs; + ext && (ext->codes.major_opcode != event->request_code); + ext = ext->next) + ; + if (ext) { + strncpy(buffer, ext->name, BUFSIZ); + buffer[BUFSIZ - 1] = '\0'; + } else + buffer[0] = '\0'; + } + (void) fprintf(fp, " (%s)\n", buffer); + if (event->request_code >= 128) { + XGetErrorDatabaseText(dpy, mtype, "MinorCode", "Request Minor code %d", + mesg, BUFSIZ); + fputs(" ", fp); + (void) fprintf(fp, mesg, event->minor_code); + if (ext) { + sprintf(mesg, "%s.%d", ext->name, event->minor_code); + XGetErrorDatabaseText(dpy, "XRequest", mesg, "", buffer, BUFSIZ); + (void) fprintf(fp, " (%s)", buffer); + } + fputs("\n", fp); + } + if (event->error_code >= 128) { + /* kludge, try to find the extension that caused it */ + buffer[0] = '\0'; + for (ext = dpy->ext_procs; ext; ext = ext->next) { + if (ext->error_string) + (*ext->error_string)(dpy, event->error_code, &ext->codes, + buffer, BUFSIZ); + if (buffer[0]) { + bext = ext; + break; + } + if (ext->codes.first_error && + ext->codes.first_error < (int)event->error_code && + (!bext || ext->codes.first_error > bext->codes.first_error)) + bext = ext; + } + if (bext) + sprintf(buffer, "%s.%d", bext->name, + event->error_code - bext->codes.first_error); + else + strcpy(buffer, "Value"); + XGetErrorDatabaseText(dpy, mtype, buffer, "", mesg, BUFSIZ); + if (mesg[0]) { + fputs(" ", fp); + (void) fprintf(fp, mesg, event->resourceid); + fputs("\n", fp); + } + /* let extensions try to print the values */ + for (ext = dpy->ext_procs; ext; ext = ext->next) { + if (ext->error_values) + (*ext->error_values)(dpy, event, fp); + } + } else if ((event->error_code == BadWindow) || + (event->error_code == BadPixmap) || + (event->error_code == BadCursor) || + (event->error_code == BadFont) || + (event->error_code == BadDrawable) || + (event->error_code == BadColor) || + (event->error_code == BadGC) || + (event->error_code == BadIDChoice) || + (event->error_code == BadValue) || + (event->error_code == BadAtom)) { + if (event->error_code == BadValue) + XGetErrorDatabaseText(dpy, mtype, "Value", "Value 0x%x", + mesg, BUFSIZ); + else if (event->error_code == BadAtom) + XGetErrorDatabaseText(dpy, mtype, "AtomID", "AtomID 0x%x", + mesg, BUFSIZ); + else + XGetErrorDatabaseText(dpy, mtype, "ResourceID", "ResourceID 0x%x", + mesg, BUFSIZ); + fputs(" ", fp); + (void) fprintf(fp, mesg, event->resourceid); + fputs("\n", fp); + } + XGetErrorDatabaseText(dpy, mtype, "ErrorSerial", "Error Serial #%d", + mesg, BUFSIZ); + fputs(" ", fp); + (void) fprintf(fp, mesg, event->serial); + XGetErrorDatabaseText(dpy, mtype, "CurrentSerial", "Current Serial #%d", + mesg, BUFSIZ); + fputs("\n ", fp); + (void) fprintf(fp, mesg, dpy->request); + fputs("\n", fp); + if (event->error_code == BadImplementation) return 0; + return 1; +} + +int _XDefaultError( + Display *dpy, + XErrorEvent *event) +{ + if (_XPrintDefaultError (dpy, event, stderr) == 0) return 0; + exit(1); + /*NOTREACHED*/ +} + +/*ARGSUSED*/ +Bool _XDefaultWireError(Display *display, XErrorEvent *he, xError *we) +{ + return True; +} + +/* + * _XError - upcall internal or user protocol error handler + */ +int _XError ( + Display *dpy, + register xError *rep) +{ + /* + * X_Error packet encountered! We need to unpack the error before + * giving it to the user. + */ + XEvent event; /* make it a large event */ + register _XAsyncHandler *async, *next; + + event.xerror.serial = _XSetLastRequestRead(dpy, (xGenericReply *)rep); + + for (async = dpy->async_handlers; async; async = next) { + next = async->next; + if ((*async->handler)(dpy, (xReply *)rep, + (char *)rep, SIZEOF(xError), async->data)) + return 0; + } + + event.xerror.display = dpy; + event.xerror.type = X_Error; + event.xerror.resourceid = rep->resourceID; + event.xerror.error_code = rep->errorCode; + event.xerror.request_code = rep->majorCode; + event.xerror.minor_code = rep->minorCode; + if (dpy->error_vec && + !(*dpy->error_vec[rep->errorCode])(dpy, &event.xerror, rep)) + return 0; + if (_XErrorFunction != NULL) { + int rtn_val; +#ifdef XTHREADS + if (dpy->lock) + (*dpy->lock->user_lock_display)(dpy); + UnlockDisplay(dpy); +#endif + rtn_val = (*_XErrorFunction)(dpy, (XErrorEvent *)&event); /* upcall */ +#ifdef XTHREADS + LockDisplay(dpy); + if (dpy->lock) + (*dpy->lock->user_unlock_display)(dpy); +#endif + return rtn_val; + } else { + return _XDefaultError(dpy, (XErrorEvent *)&event); + } +} + +/* + * _XIOError - call user connection error handler and exit + */ +int +_XIOError ( + Display *dpy) +{ + dpy->flags |= XlibDisplayIOError; +#ifdef WIN32 + errno = WSAGetLastError(); +#endif + + /* This assumes that the thread calling exit will call any atexit handlers. + * If this does not hold, then an alternate solution would involve + * registering an atexit handler to take over the lock, which would only + * assume that the same thread calls all the atexit handlers. */ +#ifdef XTHREADS + if (dpy->lock) + (*dpy->lock->user_lock_display)(dpy); +#endif + UnlockDisplay(dpy); + + if (_XIOErrorFunction != NULL) + (*_XIOErrorFunction)(dpy); + else + _XDefaultIOError(dpy); + exit (1); + return 0; +} + + +/* + * This routine can be used to (cheaply) get some memory within a single + * Xlib routine for scratch space. A single buffer is reused each time + * if possible. To be MT safe, you can only call this between a call to + * GetReq* and a call to Data* or _XSend*, or in a context when the thread + * is guaranteed to not unlock the display. + */ +char *_XAllocScratch( + register Display *dpy, + unsigned long nbytes) +{ + if (nbytes > dpy->scratch_length) { + if (dpy->scratch_buffer) Xfree (dpy->scratch_buffer); + if ((dpy->scratch_buffer = Xmalloc((unsigned) nbytes))) + dpy->scratch_length = nbytes; + else dpy->scratch_length = 0; + } + return (dpy->scratch_buffer); +} + +/* + * Scratch space allocator you can call any time, multiple times, and be + * MT safe, but you must hand the buffer back with _XFreeTemp. + */ +char *_XAllocTemp( + register Display *dpy, + unsigned long nbytes) +{ + char *buf; + + buf = _XAllocScratch(dpy, nbytes); + dpy->scratch_buffer = NULL; + dpy->scratch_length = 0; + return buf; +} + +void _XFreeTemp( + register Display *dpy, + char *buf, + unsigned long nbytes) +{ + if (dpy->scratch_buffer) + Xfree(dpy->scratch_buffer); + dpy->scratch_buffer = buf; + dpy->scratch_length = nbytes; +} + +/* + * Given a visual id, find the visual structure for this id on this display. + */ +Visual *_XVIDtoVisual( + Display *dpy, + VisualID id) +{ + register int i, j, k; + register Screen *sp; + register Depth *dp; + register Visual *vp; + for (i = 0; i < dpy->nscreens; i++) { + sp = &dpy->screens[i]; + for (j = 0; j < sp->ndepths; j++) { + dp = &sp->depths[j]; + /* if nvisuals == 0 then visuals will be NULL */ + for (k = 0; k < dp->nvisuals; k++) { + vp = &dp->visuals[k]; + if (vp->visualid == id) return (vp); + } + } + } + return (NULL); +} + +int +XFree (void *data) +{ + Xfree (data); + return 1; +} + +#ifdef _XNEEDBCOPYFUNC +void _Xbcopy(b1, b2, length) + register char *b1, *b2; + register length; +{ + if (b1 < b2) { + b2 += length; + b1 += length; + while (length--) + *--b2 = *--b1; + } else { + while (length--) + *b2++ = *b1++; + } +} +#endif + +#ifdef DataRoutineIsProcedure +void Data( + Display *dpy, + char *data, + long len) +{ + if (dpy->bufptr + (len) <= dpy->bufmax) { + memcpy(dpy->bufptr, data, (int)len); + dpy->bufptr += ((len) + 3) & ~3; + } else { + _XSend(dpy, data, len); + } +} +#endif /* DataRoutineIsProcedure */ + + +#ifdef LONG64 +int +_XData32( + Display *dpy, + register long *data, + unsigned len) +{ + register int *buf; + register long i; + + while (len) { + buf = (int *)dpy->bufptr; + i = dpy->bufmax - (char *)buf; + if (!i) { + _XFlush(dpy); + continue; + } + if (len < i) + i = len; + dpy->bufptr = (char *)buf + i; + len -= i; + i >>= 2; + while (--i >= 0) + *buf++ = *data++; + } + return 0; +} +#endif /* LONG64 */ + +#ifdef WORD64 + +/* + * XXX This is a *really* stupid way of doing this. It should just use + * dpy->bufptr directly, taking into account where in the word it is. + */ + +/* + * Data16 - Place 16 bit data in the buffer. + * + * "dpy" is a pointer to a Display. + * "data" is a pointer to the data. + * "len" is the length in bytes of the data. + */ + +static doData16( + register Display *dpy, + short *data, + unsigned len, + char *packbuffer) +{ + long *lp,*lpack; + long i, nwords,bits; + long mask16 = 0x000000000000ffff; + + lp = (long *)data; + lpack = (long *)packbuffer; + +/* nwords is the number of 16 bit values to be packed, + * the low order 16 bits of each word will be packed + * into 64 bit words + */ + nwords = len >> 1; + bits = 48; + + for(i=0;i> 1; + + for (; len > PACKBUFFERSIZE; len -= PACKBUFFERSIZE, data += nunits) { + doData16 (dpy, data, PACKBUFFERSIZE, packbuffer); + } + if (len) doData16 (dpy, data, len, packbuffer); +} + +/* + * Data32 - Place 32 bit data in the buffer. + * + * "dpy" is a pointer to a Display. + * "data" is a pointer to the data. + * "len" is the length in bytes of the data. + */ + +static doData32( + register Display *dpy + long *data, + unsigned len, + char *packbuffer) +{ + long *lp,*lpack; + long i,bits,nwords; + long mask32 = 0x00000000ffffffff; + + lpack = (long *) packbuffer; + lp = data; + +/* nwords is the number of 32 bit values to be packed + * the low order 32 bits of each word will be packed + * into 64 bit words + */ + nwords = len >> 2; + bits = 32; + + for(i=0;i> 2; + + for (; len > PACKBUFFERSIZE; len -= PACKBUFFERSIZE, data += nunits) { + doData32 (dpy, data, PACKBUFFERSIZE, packbuffer); + } + if (len) doData32 (dpy, data, len, packbuffer); +} + +#endif /* WORD64 */ + + +/* Make sure this produces the same string as DefineLocal/DefineSelf in xdm. + * Otherwise, Xau will not be able to find your cookies in the Xauthority file. + * + * Note: POSIX says that the ``nodename'' member of utsname does _not_ have + * to have sufficient information for interfacing to the network, + * and so, you may be better off using gethostname (if it exists). + */ + +#if (defined(_POSIX_SOURCE) && !defined(AIXV3) && !defined(__QNX__)) || defined(hpux) || defined(SVR4) +#define NEED_UTSNAME +#include +#else +#ifdef HAVE_UNISTD_H +#include +#endif +#endif + +/* + * _XGetHostname - similar to gethostname but allows special processing. + */ +int _XGetHostname ( + char *buf, + int maxlen) +{ + int len; + +#ifdef NEED_UTSNAME + struct utsname name; + + if (maxlen <= 0 || buf == NULL) + return 0; + + uname (&name); + len = strlen (name.nodename); + if (len >= maxlen) len = maxlen - 1; + strncpy (buf, name.nodename, len); + buf[len] = '\0'; +#else + if (maxlen <= 0 || buf == NULL) + return 0; + + buf[0] = '\0'; + (void) gethostname (buf, maxlen); + buf [maxlen - 1] = '\0'; + len = strlen(buf); +#endif /* NEED_UTSNAME */ + return len; +} + + +/* + * _XScreenOfWindow - get the Screen of a given window + */ + +Screen *_XScreenOfWindow(Display *dpy, Window w) +{ + register int i; + Window root; + int x, y; /* dummy variables */ + unsigned int width, height, bw, depth; /* dummy variables */ + + if (XGetGeometry (dpy, w, &root, &x, &y, &width, &height, + &bw, &depth) == False) { + return NULL; + } + for (i = 0; i < ScreenCount (dpy); i++) { /* find root from list */ + if (root == RootWindow (dpy, i)) { + return ScreenOfDisplay (dpy, i); + } + } + return NULL; +} + + +#if defined(WIN32) + +/* + * These functions are intended to be used internally to Xlib only. + * These functions will always prefix the path with a DOS drive in the + * form ":". As such, these functions are only suitable + * for use by Xlib function that supply a root-based path to some + * particular file, e.g. /lib/X11/locale/locale.dir will + * be converted to "C:/usr/X11R6.3/lib/X11/locale/locale.dir". + */ + +static int access_file (path, pathbuf, len_pathbuf, pathret) + char* path; + char* pathbuf; + int len_pathbuf; + char** pathret; +{ + if (access (path, F_OK) == 0) { + if (strlen (path) < len_pathbuf) + *pathret = pathbuf; + else + *pathret = Xmalloc (strlen (path) + 1); + if (*pathret) { + strcpy (*pathret, path); + return 1; + } + } + return 0; +} + +static int AccessFile (path, pathbuf, len_pathbuf, pathret) + char* path; + char* pathbuf; + int len_pathbuf; + char** pathret; +{ + unsigned long drives; + int i, len; + char* drive; + char buf[MAX_PATH]; + char* bufp; + + /* just try the "raw" name first and see if it works */ + if (access_file (path, pathbuf, len_pathbuf, pathret)) + return 1; + + /* try the places set in the environment */ + drive = getenv ("_XBASEDRIVE"); +#ifdef __UNIXOS2__ + if (!drive) + drive = getenv ("X11ROOT"); +#endif + if (!drive) + drive = "C:"; + len = strlen (drive) + strlen (path); + if (len < MAX_PATH) bufp = buf; + else bufp = Xmalloc (len + 1); + strcpy (bufp, drive); + strcat (bufp, path); + if (access_file (bufp, pathbuf, len_pathbuf, pathret)) { + if (bufp != buf) Xfree (bufp); + return 1; + } + +#ifndef __UNIXOS2__ + /* one last place to look */ + drive = getenv ("HOMEDRIVE"); + if (drive) { + len = strlen (drive) + strlen (path); + if (len < MAX_PATH) bufp = buf; + else bufp = Xmalloc (len + 1); + strcpy (bufp, drive); + strcat (bufp, path); + if (access_file (bufp, pathbuf, len_pathbuf, pathret)) { + if (bufp != buf) Xfree (bufp); + return 1; + } + } + + /* tried everywhere else, go fishing */ +#define C_DRIVE ('C' - 'A') +#define Z_DRIVE ('Z' - 'A') + /* does OS/2 (with or with gcc-emx) have getdrives? */ + drives = _getdrives (); + for (i = C_DRIVE; i <= Z_DRIVE; i++) { /* don't check on A: or B: */ + if ((1 << i) & drives) { + len = 2 + strlen (path); + if (len < MAX_PATH) bufp = buf; + else bufp = Xmalloc (len + 1); + *bufp = 'A' + i; + *(bufp + 1) = ':'; + *(bufp + 2) = '\0'; + strcat (bufp, path); + if (access_file (bufp, pathbuf, len_pathbuf, pathret)) { + if (bufp != buf) Xfree (bufp); + return 1; + } + } + } +#endif + return 0; +} + +int _XOpenFile(path, flags) + _Xconst char* path; + int flags; +{ + char buf[MAX_PATH]; + char* bufp = NULL; + int ret = -1; + UINT olderror = SetErrorMode (SEM_FAILCRITICALERRORS); + + if (AccessFile (path, buf, MAX_PATH, &bufp)) + ret = open (bufp, flags); + + (void) SetErrorMode (olderror); + + if (bufp != buf) Xfree (bufp); + + return ret; +} + +int _XOpenFileMode(path, flags, mode) + _Xconst char* path; + int flags; + mode_t mode; +{ + char buf[MAX_PATH]; + char* bufp = NULL; + int ret = -1; + UINT olderror = SetErrorMode (SEM_FAILCRITICALERRORS); + + if (AccessFile (path, buf, MAX_PATH, &bufp)) + ret = open (bufp, flags, mode); + + (void) SetErrorMode (olderror); + + if (bufp != buf) Xfree (bufp); + + return ret; +} + +void* _XFopenFile(path, mode) + _Xconst char* path; + _Xconst char* mode; +{ + char buf[MAX_PATH]; + char* bufp = NULL; + void* ret = NULL; + UINT olderror = SetErrorMode (SEM_FAILCRITICALERRORS); + + if (AccessFile (path, buf, MAX_PATH, &bufp)) + ret = fopen (bufp, mode); + + (void) SetErrorMode (olderror); + + if (bufp != buf) Xfree (bufp); + + return ret; +} + +int _XAccessFile(path) + _Xconst char* path; +{ + char buf[MAX_PATH]; + char* bufp; + int ret = -1; + UINT olderror = SetErrorMode (SEM_FAILCRITICALERRORS); + + ret = AccessFile (path, buf, MAX_PATH, &bufp); + + (void) SetErrorMode (olderror); + + if (bufp != buf) Xfree (bufp); + + return ret; +} + +#endif + +#ifdef WIN32 +#undef _Xdebug +int _Xdebug = 0; +int *_Xdebug_p = &_Xdebug; +void (**_XCreateMutex_fn_p)(LockInfoPtr) = &_XCreateMutex_fn; +void (**_XFreeMutex_fn_p)(LockInfoPtr) = &_XFreeMutex_fn; +void (**_XLockMutex_fn_p)(LockInfoPtr +#if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE) + , char * /* file */ + , int /* line */ +#endif + ) = &_XLockMutex_fn; +void (**_XUnlockMutex_fn_p)(LockInfoPtr +#if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE) + , char * /* file */ + , int /* line */ +#endif + ) = &_XUnlockMutex_fn; +LockInfoPtr *_Xglobal_lock_p = &_Xglobal_lock; +#endif -- cgit v1.2.3