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authormarha <marha@users.sourceforge.net>2010-12-23 07:51:31 +0000
committermarha <marha@users.sourceforge.net>2010-12-23 07:51:31 +0000
commit71e1361d0fd4c2d1c6c31f9a28d474fceee7e12e (patch)
tree4e5cebc3ac6d1c0f5dd765697a7c2ad7be796136 /libX11/src/IntAtom.c
parent374f6889ce26ba0a914d07f4946cd113263a6e18 (diff)
parent8fd06c45853cb2300105db84e4b722f0e2dad8d2 (diff)
downloadvcxsrv-71e1361d0fd4c2d1c6c31f9a28d474fceee7e12e.tar.gz
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svn merge ^/branches/released .
Diffstat (limited to 'libX11/src/IntAtom.c')
-rw-r--r--libX11/src/IntAtom.c594
1 files changed, 297 insertions, 297 deletions
diff --git a/libX11/src/IntAtom.c b/libX11/src/IntAtom.c
index a06689950..7a5625840 100644
--- a/libX11/src/IntAtom.c
+++ b/libX11/src/IntAtom.c
@@ -1,297 +1,297 @@
-/*
-
-Copyright 1986, 1990, 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.
-
-*/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "Xlibint.h"
-#include "Xintatom.h"
-
-#define HASH(sig) ((sig) & (TABLESIZE-1))
-#define REHASHVAL(sig) ((((sig) % (TABLESIZE-3)) + 2) | 1)
-#define REHASH(idx,rehash) ((idx + rehash) & (TABLESIZE-1))
-
-void
-_XFreeAtomTable(Display *dpy)
-{
- register Entry *table;
- register int i;
- register Entry e;
-
- if (dpy->atoms) {
- table = dpy->atoms->table;
- for (i = TABLESIZE; --i >= 0; ) {
- if ((e = *table++) && (e != RESERVED))
- Xfree((char *)e);
- }
- Xfree((char *)dpy->atoms);
- }
-}
-
-static
-Atom _XInternAtom(
- Display *dpy,
- _Xconst char *name,
- Bool onlyIfExists,
- unsigned long *psig,
- int *pidx,
- int *pn)
-{
- register AtomTable *atoms;
- register char *s1, c, *s2;
- register unsigned long sig;
- register int idx = 0, i;
- Entry e;
- int n, firstidx, rehash = 0;
- xInternAtomReq *req;
-
- /* look in the cache first */
- if (!(atoms = dpy->atoms)) {
- dpy->atoms = atoms = (AtomTable *)Xcalloc(1, sizeof(AtomTable));
- dpy->free_funcs->atoms = _XFreeAtomTable;
- }
- sig = 0;
- for (s1 = (char *)name; (c = *s1++); )
- sig += c;
- n = s1 - (char *)name - 1;
- if (atoms) {
- firstidx = idx = HASH(sig);
- while ((e = atoms->table[idx])) {
- if (e != RESERVED && e->sig == sig) {
- for (i = n, s1 = (char *)name, s2 = EntryName(e); --i >= 0; ) {
- if (*s1++ != *s2++)
- goto nomatch;
- }
- if (!*s2)
- return e->atom;
- }
-nomatch: if (idx == firstidx)
- rehash = REHASHVAL(sig);
- idx = REHASH(idx, rehash);
- if (idx == firstidx)
- break;
- }
- }
- *psig = sig;
- *pidx = idx;
- if (atoms && !atoms->table[idx])
- atoms->table[idx] = RESERVED; /* reserve slot */
- *pn = n;
- /* not found, go to the server */
- GetReq(InternAtom, req);
- req->nbytes = n;
- req->onlyIfExists = onlyIfExists;
- req->length += (n+3)>>2;
- Data(dpy, name, n);
- return None;
-}
-
-void
-_XUpdateAtomCache(
- Display *dpy,
- const char *name,
- Atom atom,
- unsigned long sig,
- int idx,
- int n)
-{
- Entry e, oe;
- register char *s1;
- register char c;
- int firstidx, rehash;
-
- if (!dpy->atoms) {
- if (idx < 0) {
- dpy->atoms = (AtomTable *)Xcalloc(1, sizeof(AtomTable));
- dpy->free_funcs->atoms = _XFreeAtomTable;
- }
- if (!dpy->atoms)
- return;
- }
- if (!sig) {
- for (s1 = (char *)name; (c = *s1++); )
- sig += c;
- n = s1 - (char *)name - 1;
- if (idx < 0) {
- firstidx = idx = HASH(sig);
- if (dpy->atoms->table[idx]) {
- rehash = REHASHVAL(sig);
- do
- idx = REHASH(idx, rehash);
- while (idx != firstidx && dpy->atoms->table[idx]);
- }
- }
- }
- e = (Entry)Xmalloc(sizeof(EntryRec) + n + 1);
- if (e) {
- e->sig = sig;
- e->atom = atom;
- strcpy(EntryName(e), name);
- if ((oe = dpy->atoms->table[idx]) && (oe != RESERVED))
- Xfree((char *)oe);
- dpy->atoms->table[idx] = e;
- }
-}
-
-Atom
-XInternAtom (
- Display *dpy,
- const char *name,
- Bool onlyIfExists)
-{
- Atom atom;
- unsigned long sig;
- int idx, n;
- xInternAtomReply rep;
-
- if (!name)
- name = "";
- LockDisplay(dpy);
- if ((atom = _XInternAtom(dpy, name, onlyIfExists, &sig, &idx, &n))) {
- UnlockDisplay(dpy);
- return atom;
- }
- if (dpy->atoms && dpy->atoms->table[idx] == RESERVED)
- dpy->atoms->table[idx] = NULL; /* unreserve slot */
- if (_XReply (dpy, (xReply *)&rep, 0, xTrue)) {
- if ((atom = rep.atom))
- _XUpdateAtomCache(dpy, name, atom, sig, idx, n);
- }
- UnlockDisplay(dpy);
- SyncHandle();
- return (rep.atom);
-}
-
-typedef struct {
- unsigned long start_seq;
- unsigned long stop_seq;
- const char **names;
- Atom *atoms;
- int count;
- Status status;
-} _XIntAtomState;
-
-static
-Bool _XIntAtomHandler(
- register Display *dpy,
- register xReply *rep,
- char *buf,
- int len,
- XPointer data)
-{
- register _XIntAtomState *state;
- register int i, idx = 0;
- xInternAtomReply replbuf;
- register xInternAtomReply *repl;
-
- state = (_XIntAtomState *)data;
- if (dpy->last_request_read < state->start_seq ||
- dpy->last_request_read > state->stop_seq)
- return False;
- for (i = 0; i < state->count; i++) {
- if (state->atoms[i] & 0x80000000) {
- idx = ~state->atoms[i];
- state->atoms[i] = None;
- break;
- }
- }
- if (i >= state->count)
- return False;
- if (rep->generic.type == X_Error) {
- state->status = 0;
- return False;
- }
- repl = (xInternAtomReply *)
- _XGetAsyncReply(dpy, (char *)&replbuf, rep, buf, len,
- (SIZEOF(xInternAtomReply) - SIZEOF(xReply)) >> 2,
- True);
- if ((state->atoms[i] = repl->atom))
- _XUpdateAtomCache(dpy, state->names[i], (Atom) repl->atom,
- (unsigned long)0, idx, 0);
- return True;
-}
-
-Status
-XInternAtoms (
- Display *dpy,
- const char **names,
- int count,
- Bool onlyIfExists,
- Atom *atoms_return)
-{
- int i, idx, n, tidx;
- unsigned long sig;
- _XAsyncHandler async;
- _XIntAtomState async_state;
- int missed = -1;
- xInternAtomReply rep;
-
- LockDisplay(dpy);
- async_state.start_seq = dpy->request + 1;
- async_state.atoms = atoms_return;
- async_state.names = names;
- async_state.count = count - 1;
- async_state.status = 1;
- async.next = dpy->async_handlers;
- async.handler = _XIntAtomHandler;
- async.data = (XPointer)&async_state;
- dpy->async_handlers = &async;
- for (i = 0; i < count; i++) {
- if (!(atoms_return[i] = _XInternAtom(dpy, names[i], onlyIfExists,
- &sig, &idx, &n))) {
- missed = i;
- atoms_return[i] = ~((Atom)idx);
- async_state.stop_seq = dpy->request;
- }
- }
- if (missed >= 0) {
- if (dpy->atoms) {
- /* unreserve anything we just reserved */
- for (i = 0; i < count; i++) {
- if (atoms_return[i] & 0x80000000) {
- tidx = ~atoms_return[i];
- if (dpy->atoms->table[tidx] == RESERVED)
- dpy->atoms->table[tidx] = NULL;
- }
- }
- }
- if (_XReply (dpy, (xReply *)&rep, 0, xTrue)) {
- if ((atoms_return[missed] = rep.atom))
- _XUpdateAtomCache(dpy, names[missed], (Atom) rep.atom,
- sig, idx, n);
- } else {
- atoms_return[missed] = None;
- async_state.status = 0;
- }
- }
- DeqAsyncHandler(dpy, &async);
- UnlockDisplay(dpy);
- if (missed >= 0)
- SyncHandle();
- return async_state.status;
-}
+/*
+
+Copyright 1986, 1990, 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.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include "Xintatom.h"
+
+#define HASH(sig) ((sig) & (TABLESIZE-1))
+#define REHASHVAL(sig) ((((sig) % (TABLESIZE-3)) + 2) | 1)
+#define REHASH(idx,rehash) ((idx + rehash) & (TABLESIZE-1))
+
+void
+_XFreeAtomTable(Display *dpy)
+{
+ register Entry *table;
+ register int i;
+ register Entry e;
+
+ if (dpy->atoms) {
+ table = dpy->atoms->table;
+ for (i = TABLESIZE; --i >= 0; ) {
+ if ((e = *table++) && (e != RESERVED))
+ Xfree((char *)e);
+ }
+ Xfree((char *)dpy->atoms);
+ }
+}
+
+static
+Atom _XInternAtom(
+ Display *dpy,
+ _Xconst char *name,
+ Bool onlyIfExists,
+ unsigned long *psig,
+ int *pidx,
+ int *pn)
+{
+ register AtomTable *atoms;
+ register char *s1, c, *s2;
+ register unsigned long sig;
+ register int idx = 0, i;
+ Entry e;
+ int n, firstidx, rehash = 0;
+ xInternAtomReq *req;
+
+ /* look in the cache first */
+ if (!(atoms = dpy->atoms)) {
+ dpy->atoms = atoms = (AtomTable *)Xcalloc(1, sizeof(AtomTable));
+ dpy->free_funcs->atoms = _XFreeAtomTable;
+ }
+ sig = 0;
+ for (s1 = (char *)name; (c = *s1++); )
+ sig += c;
+ n = s1 - (char *)name - 1;
+ if (atoms) {
+ firstidx = idx = HASH(sig);
+ while ((e = atoms->table[idx])) {
+ if (e != RESERVED && e->sig == sig) {
+ for (i = n, s1 = (char *)name, s2 = EntryName(e); --i >= 0; ) {
+ if (*s1++ != *s2++)
+ goto nomatch;
+ }
+ if (!*s2)
+ return e->atom;
+ }
+nomatch: if (idx == firstidx)
+ rehash = REHASHVAL(sig);
+ idx = REHASH(idx, rehash);
+ if (idx == firstidx)
+ break;
+ }
+ }
+ *psig = sig;
+ *pidx = idx;
+ if (atoms && !atoms->table[idx])
+ atoms->table[idx] = RESERVED; /* reserve slot */
+ *pn = n;
+ /* not found, go to the server */
+ GetReq(InternAtom, req);
+ req->nbytes = n;
+ req->onlyIfExists = onlyIfExists;
+ req->length += (n+3)>>2;
+ Data(dpy, name, n);
+ return None;
+}
+
+void
+_XUpdateAtomCache(
+ Display *dpy,
+ const char *name,
+ Atom atom,
+ unsigned long sig,
+ int idx,
+ int n)
+{
+ Entry e, oe;
+ register char *s1;
+ register char c;
+ int firstidx, rehash;
+
+ if (!dpy->atoms) {
+ if (idx < 0) {
+ dpy->atoms = (AtomTable *)Xcalloc(1, sizeof(AtomTable));
+ dpy->free_funcs->atoms = _XFreeAtomTable;
+ }
+ if (!dpy->atoms)
+ return;
+ }
+ if (!sig) {
+ for (s1 = (char *)name; (c = *s1++); )
+ sig += c;
+ n = s1 - (char *)name - 1;
+ if (idx < 0) {
+ firstidx = idx = HASH(sig);
+ if (dpy->atoms->table[idx]) {
+ rehash = REHASHVAL(sig);
+ do
+ idx = REHASH(idx, rehash);
+ while (idx != firstidx && dpy->atoms->table[idx]);
+ }
+ }
+ }
+ e = (Entry)Xmalloc(sizeof(EntryRec) + n + 1);
+ if (e) {
+ e->sig = sig;
+ e->atom = atom;
+ strcpy(EntryName(e), name);
+ if ((oe = dpy->atoms->table[idx]) && (oe != RESERVED))
+ Xfree((char *)oe);
+ dpy->atoms->table[idx] = e;
+ }
+}
+
+Atom
+XInternAtom (
+ Display *dpy,
+ const char *name,
+ Bool onlyIfExists)
+{
+ Atom atom;
+ unsigned long sig;
+ int idx, n;
+ xInternAtomReply rep;
+
+ if (!name)
+ name = "";
+ LockDisplay(dpy);
+ if ((atom = _XInternAtom(dpy, name, onlyIfExists, &sig, &idx, &n))) {
+ UnlockDisplay(dpy);
+ return atom;
+ }
+ if (dpy->atoms && dpy->atoms->table[idx] == RESERVED)
+ dpy->atoms->table[idx] = NULL; /* unreserve slot */
+ if (_XReply (dpy, (xReply *)&rep, 0, xTrue)) {
+ if ((atom = rep.atom))
+ _XUpdateAtomCache(dpy, name, atom, sig, idx, n);
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return (rep.atom);
+}
+
+typedef struct {
+ unsigned long start_seq;
+ unsigned long stop_seq;
+ char **names;
+ Atom *atoms;
+ int count;
+ Status status;
+} _XIntAtomState;
+
+static
+Bool _XIntAtomHandler(
+ register Display *dpy,
+ register xReply *rep,
+ char *buf,
+ int len,
+ XPointer data)
+{
+ register _XIntAtomState *state;
+ register int i, idx = 0;
+ xInternAtomReply replbuf;
+ register xInternAtomReply *repl;
+
+ state = (_XIntAtomState *)data;
+ if (dpy->last_request_read < state->start_seq ||
+ dpy->last_request_read > state->stop_seq)
+ return False;
+ for (i = 0; i < state->count; i++) {
+ if (state->atoms[i] & 0x80000000) {
+ idx = ~state->atoms[i];
+ state->atoms[i] = None;
+ break;
+ }
+ }
+ if (i >= state->count)
+ return False;
+ if (rep->generic.type == X_Error) {
+ state->status = 0;
+ return False;
+ }
+ repl = (xInternAtomReply *)
+ _XGetAsyncReply(dpy, (char *)&replbuf, rep, buf, len,
+ (SIZEOF(xInternAtomReply) - SIZEOF(xReply)) >> 2,
+ True);
+ if ((state->atoms[i] = repl->atom))
+ _XUpdateAtomCache(dpy, state->names[i], (Atom) repl->atom,
+ (unsigned long)0, idx, 0);
+ return True;
+}
+
+Status
+XInternAtoms (
+ Display *dpy,
+ char **names,
+ int count,
+ Bool onlyIfExists,
+ Atom *atoms_return)
+{
+ int i, idx, n, tidx;
+ unsigned long sig;
+ _XAsyncHandler async;
+ _XIntAtomState async_state;
+ int missed = -1;
+ xInternAtomReply rep;
+
+ LockDisplay(dpy);
+ async_state.start_seq = dpy->request + 1;
+ async_state.atoms = atoms_return;
+ async_state.names = names;
+ async_state.count = count - 1;
+ async_state.status = 1;
+ async.next = dpy->async_handlers;
+ async.handler = _XIntAtomHandler;
+ async.data = (XPointer)&async_state;
+ dpy->async_handlers = &async;
+ for (i = 0; i < count; i++) {
+ if (!(atoms_return[i] = _XInternAtom(dpy, names[i], onlyIfExists,
+ &sig, &idx, &n))) {
+ missed = i;
+ atoms_return[i] = ~((Atom)idx);
+ async_state.stop_seq = dpy->request;
+ }
+ }
+ if (missed >= 0) {
+ if (dpy->atoms) {
+ /* unreserve anything we just reserved */
+ for (i = 0; i < count; i++) {
+ if (atoms_return[i] & 0x80000000) {
+ tidx = ~atoms_return[i];
+ if (dpy->atoms->table[tidx] == RESERVED)
+ dpy->atoms->table[tidx] = NULL;
+ }
+ }
+ }
+ if (_XReply (dpy, (xReply *)&rep, 0, xTrue)) {
+ if ((atoms_return[missed] = rep.atom))
+ _XUpdateAtomCache(dpy, names[missed], (Atom) rep.atom,
+ sig, idx, n);
+ } else {
+ atoms_return[missed] = None;
+ async_state.status = 0;
+ }
+ }
+ DeqAsyncHandler(dpy, &async);
+ UnlockDisplay(dpy);
+ if (missed >= 0)
+ SyncHandle();
+ return async_state.status;
+}