481N/A###############################################################################
481N/A# Copyright (c) 2008, 2013, Oracle
and/or its affiliates. All rights reserved.
481N/A# Permission is hereby granted, free of charge, to any person obtaining a
481N/A# copy of this software and associated documentation files (the "Software"),
481N/A# to deal in the Software without restriction, including without limitation
481N/A# the rights to use, copy, modify, merge, publish, distribute, sublicense,
481N/A#
and/or sell copies of the Software, and to permit persons to whom the
481N/A# Software is furnished to do so, subject to the following conditions:
481N/A# The above copyright notice and this permission notice (including the next
481N/A# paragraph) shall be included in all copies or substantial portions of the
481N/A# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
481N/A# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
481N/A# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
481N/A# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
481N/A# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
481N/A# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
481N/A# DEALINGS IN THE SOFTWARE.
481N/A1234757: XInitThreads needs to be made less restrictive
481N/AThis is a RFE to enhance XInitThreads so that it may be called:
481N/A * By libraries used by the client, (without the client's intervention)
481N/A * At a later time, after other Xlib calls have already been made.
481N/A Currently, XInitThreads *Must* be the first Xlib call that the client
481N/AFor Example, in order for XIL 1.3 to be MT HOT, it must be able to
493N/Amake the call to XInitThreads, even if the client has already made
481N/A@@ -207,6 +207,10 @@ struct _XDisplay
481N/A void *cookiejar; /* cookie events returned but not claimed */
493N/A+#if defined(XTHREADS) && defined(SUNSOFT)
493N/A+int InitDisplayArrayLock(void);
481N/A+#endif /* XTHREADS && SUNSOFT */
493N/A #define XAllocIDs(dpy,ids,n) (*(dpy)->idlist_alloc)(dpy,ids,n)
@@ -38,6 +38,21 @@ in this Software without prior written authorization from The Open Group.
+#if defined(XTHREADS) && defined(SUNSOFT)
+struct _DisplayPtrLink {
+ struct _DisplayPtrLink *next;
+typedef struct _DisplayPtrLink DisplayPtrLink;
+DisplayPtrLink *HeadDisplay=NULL;
+DisplayPtrLink *LastDisplay=NULL;
+static int AddToDisplayLink(Display *dpy);
+static void RemoveFromDisplayLink(Display *dpy);
+#endif /* XTHREADS && SUNSOFT */
int (*_XInitDisplayLock_fn)(Display *dpy) = NULL;
@@ -208,6 +223,13 @@ XOpenDisplay (
+ if (AddToDisplayLink(dpy) == 0) {
if (!_XPollfdCacheInit(dpy)) {
@@ -576,6 +598,10 @@ XOpenDisplay (
void _XFreeDisplayStructure(Display *dpy)
+ RemoveFromDisplayLink(dpy);
/* move all cookies in the EQ to the jar, then free them. */
_XQEvent *qelt = dpy->qfree;
@@ -704,6 +730,103 @@ void _XFreeDisplayStructure(Display *dpy)
+#if defined(XTHREADS) && defined(SUNSOFT)
+AddToDisplayLink(Display *dpy)
+ * Attempt to allocate a display array. Return NULL if allocation fails.
+ HeadDisplay = Xcalloc (1, sizeof(struct _DisplayPtrLink));
+ if (HeadDisplay == NULL)
+ HeadDisplay->dpy = dpy;
+ HeadDisplay->next = NULL;
+ LastDisplay = HeadDisplay;
+ LastDisplay->next = Xcalloc (1, sizeof(struct _DisplayPtrLink));
+ if (LastDisplay->next == NULL )
+ LastDisplay = LastDisplay->next;
+ LastDisplay->dpy = dpy;
+ LastDisplay->next = NULL;
+RemoveFromDisplayLink(Display *dpy)
+ DisplayPtrLink *tmp_display = HeadDisplay;
+ DisplayPtrLink *prev_display = HeadDisplay;
+ while ( tmp_display ) {
+ if ((tmp_display->dpy == dpy) && (tmp_display->dpy->fd == dpy->fd)){
+ prev_display = tmp_display;
+ tmp_display = tmp_display->next;
+ /* If tmp_display is the first node */
+ if ( tmp_display == HeadDisplay ) {
+ if ( HeadDisplay->next )
+ HeadDisplay = HeadDisplay->next;
+ /* If tmp_display is the last node */
+ else if ( tmp_display == LastDisplay ) {
+ LastDisplay = prev_display;
+ LastDisplay->next = NULL;
+ /* tmp_display is in the middle of list*/
+ prev_display->next = tmp_display->next;
+InitDisplayArrayLock(void)
+ DisplayPtrLink *tmp_display = HeadDisplay;
+ DisplayPtrLink *prev_display = HeadDisplay;
+ while ( tmp_display ) {
+ if ((tmp_display->dpy) && (!tmp_display->dpy->lock)) {
+ /* Initialize the display lock */
+ if (_XInitDisplayLock_fn(tmp_display->dpy) != 0) {
+ OutOfMemory (tmp_display->dpy);
+ tmp_display = tmp_display->next;
+#endif /* XTHREADS && SUNSOFT */
/* OutOfMemory is called if malloc fails. XOpenDisplay returns NULL
@@ -614,6 +614,11 @@ Status XInitThreads(void)
+ if (InitDisplayArrayLock() == 0)