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winspool: Only perform printer initialisation once per session.

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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); 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) void WINSPOOL_LoadSystemPrinters(void)
{ {
HKEY hkey, hkeyPrinters; HKEY hkey, hkeyPrinters;
DWORD needed, num, i; DWORD needed, num, i;
WCHAR PrinterName[256]; WCHAR PrinterName[256];
BOOL done = FALSE; 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 /* 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 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 ); old_printer_check( TRUE );
ReleaseMutex( mutex );
return; return;
} }