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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/lib/XTrap/XETrapInit.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
Diffstat (limited to 'nx-X11/lib/XTrap/XETrapInit.c')
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diff --git a/nx-X11/lib/XTrap/XETrapInit.c b/nx-X11/lib/XTrap/XETrapInit.c
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+/* $XFree86: xc/lib/XTrap/XETrapInit.c,v 1.2 2001/11/08 04:00:12 tsi Exp $ */
+/*****************************************************************************
+Copyright 1987, 1988, 1989, 1990, 1991, 1992 by Digital Equipment Corp.,
+Maynard, MA
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+*****************************************************************************/
+#define NEED_EVENTS
+#define NEED_REPLIES
+
+#include <stdio.h>
+#include <X11/extensions/xtraplib.h>
+#include <X11/extensions/xtraplibp.h>
+#include <X11/extensions/Xext.h>
+#include <X11/extensions/extutil.h>
+
+#ifndef XETrapNumberErrors
+#define XETrapNumberErrors 0
+#endif
+
+#ifdef UWS40
+#define _XSetLastRequestRead _SetLastRequestRead
+#endif
+#ifndef vms
+extern unsigned long _XSetLastRequestRead(Display *dpy, xGenericReply *rep);
+#else
+static unsigned long _XSetLastRequestRead(Display *dpy, xGenericReply *rep);
+#endif
+
+static XExtensionInfo *xtrap_info = NULL;
+static /* const */ char *xtrap_extension_name = XTrapExtName;
+
+#define XTrapCheckExtension(dpy,i,val) \
+ XextCheckExtension(dpy, i, xtrap_extension_name, val)
+#define XTrapSimpleCheckExtension(dpy,i) \
+ XextSimpleCheckExtension(dpy, i, xtrap_extension_name)
+
+static XEXT_CLOSE_DISPLAY_PROTO(close_display);
+static Bool wire_to_event(Display *dpy, XEvent *event, xEvent *wire_ev);
+static Status event_to_wire(Display *dpy, XEvent *event, xEvent *wire_ev);
+
+#ifdef X11R3
+static int error_string();
+#else
+static XEXT_ERROR_STRING_PROTO(error_string);
+#endif
+static /* const */ XExtensionHooks xtrap_extension_hooks = {
+ NULL, /* create_gc */
+ NULL, /* copy_gc */
+ NULL, /* flush_gc */
+ NULL, /* free_gc */
+ NULL, /* create_font */
+ NULL, /* free_font */
+ close_display, /* close_display */
+ wire_to_event, /* wire_to_event */
+ event_to_wire, /* event_to_wire */
+ NULL, /* error */
+ error_string /* error_string */
+};
+
+static /* const */ char *xtrap_error_list[] = {
+ "BadTransport (I/O transport not available)",
+ "BadMailbox (Cannot connect/disconnect to mailbox)",
+ "BadIO (I/O error while reading/writing in extension)",
+ "BadHostname (Cannot locate requested host)",
+ "BadStatistics (Statistics not configured/available)",
+ "BadDevices (Devices not properly vectored)",
+ "BadSocket (Cannot connect to INTERNET socket)",
+ "BadScreen (Cannot send event to given screen)",
+ "BadSwapReq (Cannot trap extension requests for swapped client)",
+};
+
+static XEXT_GENERATE_FIND_DISPLAY (find_display, xtrap_info,
+ xtrap_extension_name,
+ &xtrap_extension_hooks,
+ XETrapNumberEvents, NULL)
+
+static XEXT_GENERATE_CLOSE_DISPLAY (close_display, xtrap_info)
+
+static XEXT_GENERATE_ERROR_STRING (error_string, xtrap_extension_name,
+ XETrapNumErrors, xtrap_error_list)
+
+static Bool event_to_wire(Display *dpy, XEvent *libevent, xEvent *netevent)
+{
+ Bool status = False;
+ XExtDisplayInfo *info = find_display(dpy);
+
+ XTrapCheckExtension(dpy,info,False);
+
+ /* If we had more then one event */
+#if XETrapNumberErrors > 1
+ switch((netevent->u.u.type & 0x7f) - info->codes->first_event)
+ { case XETrapData:
+#endif
+ {
+ XETrapDataEvent *ev = (XETrapDataEvent *) libevent;
+ xETrapDataEvent *event = (xETrapDataEvent *) netevent;
+
+ event->type = ev->type;
+ event->detail = ev->detail;
+ event->sequenceNumber = (ev->serial & 0xFFFF);
+ event->idx = ev->idx;
+ (void)memcpy(event->data,ev->data,sizeof(event->data));
+ status = True;
+ }
+#if XETrapNumberErrors > 1
+ }
+#endif
+ return(status);
+}
+
+static Bool wire_to_event(Display *dpy, XEvent *libevent, xEvent *netevent)
+{
+ Bool status = False;
+ XExtDisplayInfo *info = find_display(dpy);
+
+ XTrapCheckExtension(dpy,info,False);
+
+ /* If we had more then one event */
+#if XETrapNumberErrors > 1
+ switch((netevent->u.u.type & 0x7f) - info->codes->first_event)
+ { case XETrapData:
+#endif
+ {
+ XETrapDataEvent *ev = (XETrapDataEvent *) libevent;
+ xETrapDataEvent *event = (xETrapDataEvent *) netevent;
+
+ ev->type = event->type & 0x7F;
+ ev->detail = event->detail;
+ ev->serial = _XSetLastRequestRead(dpy,(xGenericReply *)netevent);
+ ev->synthetic = ((event->type & 0x80) != 0);
+ ev->display = dpy;
+ ev->idx = event->idx;
+ (void)memcpy(ev->data,event->data,sizeof(ev->data));
+ status = True;
+ }
+#if XETrapNumberErrors > 1
+ }
+#endif
+ return(status);
+}
+
+/*
+ * XETrapQueryExtension -
+ * Returns True if the DEC-XTRAP extension is available
+ * on the given display. If the extension exists, the value of the
+ * first event code is stored into event_base and the value of the first
+ * error code is stored into error_base.
+ */
+Bool XETrapQueryExtension(Display *dpy,INT32 *event_base_return,
+ INT32 *error_base_return, INT32 *opcode_return)
+{
+ Bool status = True;
+ XExtDisplayInfo *info = find_display (dpy);
+
+ if (XextHasExtension (info))
+ {
+ *event_base_return = (INT32)(info->codes->first_event);
+ *error_base_return = (INT32)(info->codes->first_error);
+ *opcode_return = (INT32)(info->codes->major_opcode);
+ }
+ else
+ {
+ status = False;
+ }
+ return(status);
+}
+
+#ifdef vms
+/* Hard-coded since this didn't make it into XLibShr's xfer vector */
+/* From [.XLIBEL.SRC]XLibInt.c in VMS Source Pool */
+unsigned long _XSetLastRequestRead(Display *dpy, xGenericReply *rep)
+{
+ register unsigned long newseq, lastseq;
+
+ /*
+ * 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(dpy->last_request_read);
+
+ newseq = (dpy->last_request_read & ~((unsigned long)0xffff)) |
+ rep->sequenceNumber;
+ lastseq = dpy->last_request_read;
+ while (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;
+ break;
+ }
+ }
+
+ dpy->last_request_read = newseq;
+ return(newseq);
+}
+#endif
+