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Diffstat (limited to 'libX11/src/XlibAsync.c')
-rw-r--r--libX11/src/XlibAsync.c308
1 files changed, 154 insertions, 154 deletions
diff --git a/libX11/src/XlibAsync.c b/libX11/src/XlibAsync.c
index db8cba807..b17135c06 100644
--- a/libX11/src/XlibAsync.c
+++ b/libX11/src/XlibAsync.c
@@ -1,154 +1,154 @@
-/*
-
-Copyright 1992, 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 <X11/Xlibint.h>
-#include <X11/Xos.h>
-
-/*ARGSUSED*/
-Bool
-_XAsyncErrorHandler(
- register Display *dpy,
- register xReply *rep,
- char *buf,
- int len,
- XPointer data)
-{
- register _XAsyncErrorState *state;
-
- state = (_XAsyncErrorState *)data;
- if (rep->generic.type == X_Error &&
- (!state->error_code ||
- rep->error.errorCode == state->error_code) &&
- (!state->major_opcode ||
- rep->error.majorCode == state->major_opcode) &&
- (!state->minor_opcode ||
- rep->error.minorCode == state->minor_opcode) &&
- (!state->min_sequence_number ||
- (state->min_sequence_number <= dpy->last_request_read)) &&
- (!state->max_sequence_number ||
- (state->max_sequence_number >= dpy->last_request_read))) {
- state->last_error_received = rep->error.errorCode;
- state->error_count++;
- return True;
- }
- return False;
-}
-
-void _XDeqAsyncHandler(
- Display *dpy,
- register _XAsyncHandler *handler)
-{
- register _XAsyncHandler **prev;
- register _XAsyncHandler *async;
-
- for (prev = &dpy->async_handlers;
- (async = *prev) && (async != handler);
- prev = &async->next)
- ;
- if (async)
- *prev = async->next;
-}
-
-char *
-_XGetAsyncReply(
- register Display *dpy,
- register char *replbuf, /* data is read into this buffer */
- register xReply *rep, /* value passed to calling handler */
- char *buf, /* value passed to calling handler */
- int len, /* value passed to calling handler */
- int extra, /* extra words to read, ala _XReply */
- Bool discard) /* discard after extra?, ala _XReply */
-{
- if (extra == 0) {
- if (discard && (rep->generic.length << 2) > len)
- _XEatData (dpy, (rep->generic.length << 2) - len);
- return (char *)rep;
- }
-
- if (extra <= rep->generic.length) {
- int size = SIZEOF(xReply) + (extra << 2);
- if (size > len) {
- memcpy(replbuf, buf, len);
- _XRead(dpy, replbuf + len, size - len);
- buf = replbuf;
- len = size;
-#ifdef MUSTCOPY
- } else {
- memcpy(replbuf, buf, size);
- buf = replbuf;
-#endif
- }
-
- if (discard && rep->generic.length > extra &&
- (rep->generic.length << 2) > len)
- _XEatData (dpy, (rep->generic.length << 2) - len);
-
- return buf;
- }
- /*
- *if we get here, then extra > rep->generic.length--meaning we
- * read a reply that's shorter than we expected. This is an
- * error, but we still need to figure out how to handle it...
- */
- if ((rep->generic.length << 2) > len)
- _XEatData (dpy, (rep->generic.length << 2) - len);
- _XIOError (dpy);
- return (char *)rep;
-}
-
-void
-_XGetAsyncData(
- Display *dpy,
- char *data, /* data is read into this buffer */
- char *buf, /* value passed to calling handler */
- int len, /* value passed to calling handler */
- int skip, /* number of bytes already read in previous
- _XGetAsyncReply or _XGetAsyncData calls */
- int datalen, /* size of data buffer in bytes */
- int discardtotal) /* min. bytes to consume (after skip) */
-{
- buf += skip;
- len -= skip;
- if (!data) {
- if (datalen > len)
- _XEatData(dpy, datalen - len);
- } else if (datalen <= len) {
- memcpy(data, buf, datalen);
- } else {
- memcpy(data, buf, len);
- _XRead(dpy, data + len, datalen - len);
- }
- if (discardtotal > len) {
- if (datalen > len)
- len = datalen;
- _XEatData(dpy, discardtotal - len);
- }
-}
+/*
+
+Copyright 1992, 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 <X11/Xlibint.h>
+#include <X11/Xos.h>
+
+/*ARGSUSED*/
+Bool
+_XAsyncErrorHandler(
+ register Display *dpy,
+ register xReply *rep,
+ char *buf,
+ int len,
+ XPointer data)
+{
+ register _XAsyncErrorState *state;
+
+ state = (_XAsyncErrorState *)data;
+ if (rep->generic.type == X_Error &&
+ (!state->error_code ||
+ rep->error.errorCode == state->error_code) &&
+ (!state->major_opcode ||
+ rep->error.majorCode == state->major_opcode) &&
+ (!state->minor_opcode ||
+ rep->error.minorCode == state->minor_opcode) &&
+ (!state->min_sequence_number ||
+ (state->min_sequence_number <= dpy->last_request_read)) &&
+ (!state->max_sequence_number ||
+ (state->max_sequence_number >= dpy->last_request_read))) {
+ state->last_error_received = rep->error.errorCode;
+ state->error_count++;
+ return True;
+ }
+ return False;
+}
+
+void _XDeqAsyncHandler(
+ Display *dpy,
+ register _XAsyncHandler *handler)
+{
+ register _XAsyncHandler **prev;
+ register _XAsyncHandler *async;
+
+ for (prev = &dpy->async_handlers;
+ (async = *prev) && (async != handler);
+ prev = &async->next)
+ ;
+ if (async)
+ *prev = async->next;
+}
+
+char *
+_XGetAsyncReply(
+ register Display *dpy,
+ register char *replbuf, /* data is read into this buffer */
+ register xReply *rep, /* value passed to calling handler */
+ char *buf, /* value passed to calling handler */
+ int len, /* value passed to calling handler */
+ int extra, /* extra words to read, ala _XReply */
+ Bool discard) /* discard after extra?, ala _XReply */
+{
+ if (extra == 0) {
+ if (discard && (rep->generic.length << 2) > len)
+ _XEatData (dpy, (rep->generic.length << 2) - len);
+ return (char *)rep;
+ }
+
+ if (extra <= rep->generic.length) {
+ int size = SIZEOF(xReply) + (extra << 2);
+ if (size > len) {
+ memcpy(replbuf, buf, len);
+ _XRead(dpy, replbuf + len, size - len);
+ buf = replbuf;
+ len = size;
+#ifdef MUSTCOPY
+ } else {
+ memcpy(replbuf, buf, size);
+ buf = replbuf;
+#endif
+ }
+
+ if (discard && rep->generic.length > extra &&
+ (rep->generic.length << 2) > len)
+ _XEatData (dpy, (rep->generic.length << 2) - len);
+
+ return buf;
+ }
+ /*
+ *if we get here, then extra > rep->generic.length--meaning we
+ * read a reply that's shorter than we expected. This is an
+ * error, but we still need to figure out how to handle it...
+ */
+ if ((rep->generic.length << 2) > len)
+ _XEatData (dpy, (rep->generic.length << 2) - len);
+ _XIOError (dpy);
+ return (char *)rep;
+}
+
+void
+_XGetAsyncData(
+ Display *dpy,
+ char *data, /* data is read into this buffer */
+ char *buf, /* value passed to calling handler */
+ int len, /* value passed to calling handler */
+ int skip, /* number of bytes already read in previous
+ _XGetAsyncReply or _XGetAsyncData calls */
+ int datalen, /* size of data buffer in bytes */
+ int discardtotal) /* min. bytes to consume (after skip) */
+{
+ buf += skip;
+ len -= skip;
+ if (!data) {
+ if (datalen > len)
+ _XEatData(dpy, datalen - len);
+ } else if (datalen <= len) {
+ memcpy(data, buf, datalen);
+ } else {
+ memcpy(data, buf, len);
+ _XRead(dpy, data + len, datalen - len);
+ }
+ if (discardtotal > len) {
+ if (datalen > len)
+ len = datalen;
+ _XEatData(dpy, discardtotal - len);
+ }
+}