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winspool: Only perform printer initialisation once per session.

This commit is contained in:
Huw Davies 2012-05-18 13:43:56 +01:00 committed by Alexandre Julliard
parent 9d0bfce9d8
commit 7b0cda2140
1 changed files with 20 additions and 0 deletions
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20
dlls/winspool.drv/info.c
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@ -1076,12 +1076,31 @@ static void old_printer_check( BOOL delete_phase )
HeapFree(GetProcessHeap(), 0, pi);
}
static const WCHAR winspool_mutex_name[] = {'_','_','W','I','N','E','_','W','I','N','S','P','O','O','L','_',
'M','U','T','E','X','_','_','\0'};
void WINSPOOL_LoadSystemPrinters(void)
{
HKEY hkey, hkeyPrinters;
DWORD needed, num, i;
WCHAR PrinterName[256];
BOOL done = FALSE;
HANDLE mutex;
/* FIXME: The init code should be moved to spoolsv.exe */
mutex = CreateMutexW( NULL, TRUE, winspool_mutex_name );
if (!mutex)
{
ERR( "Failed to create mutex\n" );
return;
}
if (GetLastError() == ERROR_ALREADY_EXISTS)
{
WaitForSingleObject( mutex, INFINITE );
ReleaseMutex( mutex );
TRACE( "Init already done\n" );
return;
}
/* This ensures that all printer entries have a valid Name value. If causes
problems later if they don't. If one is found to be missed we create one
@ -1114,6 +1133,7 @@ void WINSPOOL_LoadSystemPrinters(void)
old_printer_check( TRUE );
ReleaseMutex( mutex );
return;
}