Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-12-28 01:55:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

[SHSVCS] Don't call UnregisterWait from within the wait callback.

Browse source 
Doing this causes deadlocks, the process runs out of worker threads and
the system runs out of memory by allocating too many I/O completion ports
when using ntdll.dll from Windows.
This commit is contained in:
Thomas Faber 2020-04-15 12:09:49 +02:00
parent c58d7a6df6
commit 5a5ba1ad10
No known key found for this signature in database
GPG key ID: 076E7C3D44720826
1 changed files with 7 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
base/services/shsvcs/thmserver.c
View file

@ -76,7 +76,6 @@ CALLBACK
ThemeStopCallback(PVOID lpParameter, BOOLEAN TimerOrWaitFired)
{
CloseHandle(hServiceProcess);
UnregisterWait(hThemeStopWaitObject);
UnregisterWait(hThemeServiceWaitObject);
ThemeWatchForStart();
@ -92,7 +91,10 @@ ThemeServiceDiedCallback(PVOID lpParameter, BOOLEAN TimerOrWaitFired)
ResetEvent(hStartEvent);
ResetEvent(hStopEvent);
ThemeStopCallback(lpParameter, TimerOrWaitFired);
CloseHandle(hServiceProcess);
UnregisterWait(hThemeStopWaitObject);
ThemeWatchForStart();
ThemeHooksRemove();
}
static
@ -100,12 +102,10 @@ VOID
CALLBACK
ThemeStartCallback(PVOID lpParameter, BOOLEAN TimerOrWaitFired)
{
UnregisterWait(hThemeStartWaitObject);
hServiceProcess = GetThemeServiceProcessHandle();
RegisterWaitForSingleObject(&hThemeStopWaitObject, hStopEvent, ThemeStopCallback, NULL, INFINITE, WT_EXECUTEDEFAULT);
RegisterWaitForSingleObject(&hThemeServiceWaitObject, hServiceProcess, ThemeServiceDiedCallback, NULL, INFINITE, WT_EXECUTEDEFAULT);
RegisterWaitForSingleObject(&hThemeStopWaitObject, hStopEvent, ThemeStopCallback, NULL, INFINITE, WT_EXECUTEONLYONCE);
RegisterWaitForSingleObject(&hThemeServiceWaitObject, hServiceProcess, ThemeServiceDiedCallback, NULL, INFINITE, WT_EXECUTEONLYONCE);
ThemeHooksInstall();
}
@ -117,7 +117,7 @@ ThemeWatchForStart(VOID)
hStartEvent = CreateEventW(NULL, TRUE, FALSE, L"Global\\ThemeStartEvent");
hStopEvent = CreateEventW(NULL, TRUE, FALSE, L"Global\\ThemeStopEvent");
RegisterWaitForSingleObject(&hThemeStartWaitObject, hStartEvent, ThemeStartCallback, NULL, INFINITE, WT_EXECUTEDEFAULT);
RegisterWaitForSingleObject(&hThemeStartWaitObject, hStartEvent, ThemeStartCallback, NULL, INFINITE, WT_EXECUTEONLYONCE);
return TRUE;
}