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Better handling of the timeout in WaitForInputIdle. 

Use WAIT_FAILED rather than the corresponding literal.
This commit is contained in:
Francois Gouget 2001-10-08 20:28:12 +00:00 committed by Alexandre Julliard
parent 19337c7e18
commit 671a2ee8b7
1 changed files with 19 additions and 13 deletions
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32
windows/message.c
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@ -743,7 +743,7 @@ DWORD WINAPI MsgWaitForMultipleObjects( DWORD count, CONST HANDLE *handles,
*/
DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
{
DWORD cur_time, ret;
DWORD start_time, elapsed, ret;
HANDLE idle_event = -1;
SERVER_START_REQ( wait_input_idle )
@ -753,31 +753,37 @@ DWORD WINAPI WaitForInputIdle( HANDLE hProcess, DWORD dwTimeOut )
if (!(ret = SERVER_CALL_ERR())) idle_event = req->event;
}
SERVER_END_REQ;
if (ret) return 0xffffffff; /* error */
if (ret) return WAIT_FAILED; /* error */
if (!idle_event) return 0; /* no event to wait on */
cur_time = GetTickCount();
start_time = GetTickCount();
elapsed = 0;
TRACE("waiting for %x\n", idle_event );
while ( dwTimeOut > GetTickCount() - cur_time || dwTimeOut == INFINITE )
do
{
ret = MsgWaitForMultipleObjects ( 1, &idle_event, FALSE, dwTimeOut, QS_SENDMESSAGE );
if ( ret == ( WAIT_OBJECT_0 + 1 ))
ret = MsgWaitForMultipleObjects ( 1, &idle_event, FALSE, dwTimeOut - elapsed, QS_SENDMESSAGE );
switch (ret)
{
case WAIT_OBJECT_0+1:
process_sent_messages();
continue;
}
if ( ret == WAIT_TIMEOUT || ret == 0xFFFFFFFF )
{
break;
case WAIT_TIMEOUT:
case WAIT_FAILED:
TRACE("timeout or error\n");
return ret;
}
else
{
default:
TRACE("finished\n");
return 0;
}
if (dwTimeOut != INFINITE)
{
elapsed = GetTickCount() - start_time;
if (elapsed > dwTimeOut)
break;
}
}
while (1);
return WAIT_TIMEOUT;
}