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authorJamey Sharp <jamey@minilop.net>2006-10-15 00:03:57 -0700
committerDaniel Stone <daniels@endtroducing.fooishbar.org>2007-04-11 18:44:32 +0300
commit0ae08175472acc203c55eaf886fa754901072108 (patch)
treeefd965408225586fdd3044340e0db59bbac1329b /src
parenta768f06e3c795279dfed289ea6544e2b4c302ae6 (diff)
Don't call XInput_find_display in _XiGetExtensionVersion, while the Display lock is held.
_XiGetExtensionVersion has two callers. One had already called XInput_find_display, and the other could easily do so outside the Display lock. So I change the _XiGetExtensionVersion interface to accept a previously-computed XExtDisplayInfo from the caller. Besides being more correct, this should be slightly faster. :-) Thanks to Magnus Kessler <Magnus.Kessler@gmx.net> for identifying the bug and proposing a workaround.
Diffstat (limited to 'src')
-rw-r--r--src/XExtInt.c2
-rw-r--r--src/XGetVers.c6
-rw-r--r--src/XIint.h2
3 files changed, 5 insertions, 5 deletions
diff --git a/src/XExtInt.c b/src/XExtInt.c
index f9f2f96..29765ef 100644
--- a/src/XExtInt.c
+++ b/src/XExtInt.c
@@ -211,7 +211,7 @@ _XiCheckExtInit(dpy, version_index, info)
return (-1);
}
((XInputData *) info->data)->vers =
- _XiGetExtensionVersion(dpy, "XInputExtension");
+ _XiGetExtensionVersion(dpy, "XInputExtension", info);
}
if (versions[version_index].major_version > Dont_Check) {
diff --git a/src/XGetVers.c b/src/XGetVers.c
index 5fe3a87..d3c765a 100644
--- a/src/XGetVers.c
+++ b/src/XGetVers.c
@@ -64,9 +64,10 @@ XExtensionVersion *
XGetExtensionVersion(register Display * dpy, _Xconst char *name)
{
XExtensionVersion *ext;
+ XExtDisplayInfo *info = XInput_find_display(dpy);
LockDisplay(dpy);
- ext = _XiGetExtensionVersion(dpy, name);
+ ext = _XiGetExtensionVersion(dpy, name, info);
if (ext != (XExtensionVersion *) NoSuchExtension) {
UnlockDisplay(dpy);
SyncHandle();
@@ -75,12 +76,11 @@ XGetExtensionVersion(register Display * dpy, _Xconst char *name)
}
XExtensionVersion *
-_XiGetExtensionVersion(register Display * dpy, _Xconst char *name)
+_XiGetExtensionVersion(register Display * dpy, _Xconst char *name, XExtDisplayInfo *info)
{
xGetExtensionVersionReq *req;
xGetExtensionVersionReply rep;
XExtensionVersion *ext;
- XExtDisplayInfo *info = XInput_find_display(dpy);
if (_XiCheckExtInit(dpy, Dont_Check, info) == -1)
return ((XExtensionVersion *) NoSuchExtension);
diff --git a/src/XIint.h b/src/XIint.h
index 0924a88..f35619c 100644
--- a/src/XIint.h
+++ b/src/XIint.h
@@ -12,6 +12,6 @@ extern XExtDisplayInfo *XInput_find_display(Display *);
extern int _XiCheckExtInit(Display *, int, XExtDisplayInfo *);
-extern XExtensionVersion *_XiGetExtensionVersion(Display *, _Xconst char *);
+extern XExtensionVersion *_XiGetExtensionVersion(Display *, _Xconst char *, XExtDisplayInfo *);
#endif