[Bug 5803] New: Multiple LL hooks generate never ending loop of
events
Wine Bugs
wine-bugs at winehq.org
Sun Jul 30 17:55:16 CDT 2006
http://bugs.winehq.org/show_bug.cgi?id=5803
Summary: Multiple LL hooks generate never ending loop of events
Product: Wine
Version: CVS
Platform: PC
OS/Version: Linux
Status: NEW
Keywords: source
Severity: major
Priority: P2
Component: wine-user
AssignedTo: wine-bugs at winehq.org
ReportedBy: vitaliy at kievinfo.com
OtherBugsDependingO 5712
nThis:
If we have two LL hooks in the system from the separate threads we will generate
never ending loop of events.
Attached is the sample program that demostrates the problem.
Here is the loop that starts from internal message that we generated in usr/hook.c:
LRESULT WINAPI CallNextHookEx( HHOOK hhook, INT code, WPARAM wparam, LPARAM lparam )
{
...
case WH_MOUSE_LL:
MSG_SendInternalMessageTimeout( pid, tid, WM_WINE_MOUSE_LL_HOOK,
wparam, lparam,
SMTO_ABORTIFHUNG,
get_ll_hook_timeout(), &ret );
And trying to process in user/message.c:
static LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam,
LPARAM lparam )
{
...
case WM_WINE_MOUSE_LL_HOOK:
return HOOK_CallHooks( WH_MOUSE_LL, HC_ACTION, wparam, lparam, TRUE );
Which re-starts the hook chain.
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