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Diffstat (limited to 'libX11/src/GetAtomNm.c')
| -rw-r--r-- | libX11/src/GetAtomNm.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/libX11/src/GetAtomNm.c b/libX11/src/GetAtomNm.c new file mode 100644 index 000000000..45b4f481d --- /dev/null +++ b/libX11/src/GetAtomNm.c @@ -0,0 +1,192 @@ +/* $Xorg: GetAtomNm.c,v 1.5 2001/02/09 02:03:33 xorgcvs Exp $ */ +/* + +Copyright 1986, 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. + +*/ +/* $XFree86: xc/lib/X11/GetAtomNm.c,v 3.4 2001/08/18 02:41:28 dawes Exp $ */ + +#define NEED_REPLIES +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#include "Xintatom.h" + +static +char *_XGetAtomName( + Display *dpy, + Atom atom) +{ + xResourceReq *req; + char *name; + register Entry *table; + register int idx; + register Entry e; + + if (dpy->atoms) { + table = dpy->atoms->table; + for (idx = TABLESIZE; --idx >= 0; ) { + if ((e = *table++) && (e->atom == atom)) { + idx = strlen(EntryName(e)) + 1; + if ((name = (char *)Xmalloc(idx))) + strcpy(name, EntryName(e)); + return name; + } + } + } + GetResReq(GetAtomName, atom, req); + return (char *)NULL; +} + +char *XGetAtomName( + register Display *dpy, + Atom atom) +{ + xGetAtomNameReply rep; + char *name; + + LockDisplay(dpy); + if ((name = _XGetAtomName(dpy, atom))) { + UnlockDisplay(dpy); + return name; + } + if (_XReply(dpy, (xReply *)&rep, 0, xFalse) == 0) { + UnlockDisplay(dpy); + SyncHandle(); + return(NULL); + } + if ((name = (char *) Xmalloc(rep.nameLength+1))) { + _XReadPad(dpy, name, (long)rep.nameLength); + name[rep.nameLength] = '\0'; + _XUpdateAtomCache(dpy, name, atom, 0, -1, 0); + } else { + _XEatData(dpy, (unsigned long) (rep.nameLength + 3) & ~3); + name = (char *) NULL; + } + UnlockDisplay(dpy); + SyncHandle(); + return(name); +} + +typedef struct { + unsigned long start_seq; + unsigned long stop_seq; + Atom *atoms; + char **names; + int idx; + int count; + Status status; +} _XGetAtomNameState; + +static +Bool _XGetAtomNameHandler( + register Display *dpy, + register xReply *rep, + char *buf, + int len, + XPointer data) +{ + register _XGetAtomNameState *state; + xGetAtomNameReply replbuf; + register xGetAtomNameReply *repl; + + state = (_XGetAtomNameState *)data; + if (dpy->last_request_read < state->start_seq || + dpy->last_request_read > state->stop_seq) + return False; + while (state->idx < state->count && state->names[state->idx]) + state->idx++; + if (state->idx >= state->count) + return False; + if (rep->generic.type == X_Error) { + state->status = 0; + return False; + } + repl = (xGetAtomNameReply *) + _XGetAsyncReply(dpy, (char *)&replbuf, rep, buf, len, + (SIZEOF(xGetAtomNameReply) - SIZEOF(xReply)) >> 2, + False); + state->names[state->idx] = (char *) Xmalloc(repl->nameLength+1); + _XGetAsyncData(dpy, state->names[state->idx], buf, len, + SIZEOF(xGetAtomNameReply), repl->nameLength, + repl->length << 2); + if (state->names[state->idx]) { + state->names[state->idx][repl->nameLength] = '\0'; + _XUpdateAtomCache(dpy, state->names[state->idx], + state->atoms[state->idx], 0, -1, 0); + } else { + state->status = 0; + } + return True; +} + +Status +XGetAtomNames ( + Display *dpy, + Atom *atoms, + int count, + char **names_return) +{ + _XAsyncHandler async; + _XGetAtomNameState async_state; + xGetAtomNameReply rep; + int i; + int missed = -1; + + LockDisplay(dpy); + async_state.start_seq = dpy->request + 1; + async_state.atoms = atoms; + async_state.names = names_return; + async_state.idx = 0; + async_state.count = count - 1; + async_state.status = 1; + async.next = dpy->async_handlers; + async.handler = _XGetAtomNameHandler; + async.data = (XPointer)&async_state; + dpy->async_handlers = &async; + for (i = 0; i < count; i++) { + if (!(names_return[i] = _XGetAtomName(dpy, atoms[i]))) { + missed = i; + async_state.stop_seq = dpy->request; + } + } + if (missed >= 0) { + if (_XReply(dpy, (xReply *)&rep, 0, xFalse)) { + if ((names_return[missed] = (char *) Xmalloc(rep.nameLength+1))) { + _XReadPad(dpy, names_return[missed], (long)rep.nameLength); + names_return[missed][rep.nameLength] = '\0'; + _XUpdateAtomCache(dpy, names_return[missed], atoms[missed], + 0, -1, 0); + } else { + _XEatData(dpy, (unsigned long) (rep.nameLength + 3) & ~3); + async_state.status = 0; + } + } + } + DeqAsyncHandler(dpy, &async); + UnlockDisplay(dpy); + if (missed >= 0) + SyncHandle(); + return async_state.status; +} |