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kernel32: Add support for completion routine invocation in ReadDirectoryChangesW.

This commit is contained in:
Piotr Caban 2010-12-16 01:02:31 +01:00 committed by Alexandre Julliard
parent f5d96d1701
commit 45b65d0fb6
1 changed files with 11 additions and 3 deletions
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14
dlls/kernel32/change.c
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@ -134,6 +134,12 @@ BOOL WINAPI FindCloseChangeNotification( HANDLE handle )
return CloseHandle( handle ); return CloseHandle( handle );
} }
static void WINAPI invoke_completion(LPVOID ctx, IO_STATUS_BLOCK *ios, ULONG res)
{
LPOVERLAPPED_COMPLETION_ROUTINE completion = ctx;
completion(ios->u.Status, ios->Information, (LPOVERLAPPED)ios);
}
/**************************************************************************** /****************************************************************************
* ReadDirectoryChangesW (KERNEL32.@) * ReadDirectoryChangesW (KERNEL32.@)
* *
@ -169,14 +175,16 @@ BOOL WINAPI ReadDirectoryChangesW( HANDLE handle, LPVOID buffer, DWORD len, BOOL
else else
{ {
pov = overlapped; pov = overlapped;
if (!completion && ((ULONG_PTR)overlapped->hEvent & 1) == 0) cvalue = overlapped; if(completion) cvalue = completion;
else if (((ULONG_PTR)overlapped->hEvent & 1) == 0) cvalue = overlapped;
} }
ios = (PIO_STATUS_BLOCK) pov; ios = (PIO_STATUS_BLOCK) pov;
ios->u.Status = STATUS_PENDING; ios->u.Status = STATUS_PENDING;
status = NtNotifyChangeDirectoryFile( handle, pov->hEvent, NULL, cvalue, status = NtNotifyChangeDirectoryFile( handle, completion && overlapped ? NULL : pov->hEvent,
ios, buffer, len, filter, subtree ); completion && overlapped ? invoke_completion : NULL,
cvalue, ios, buffer, len, filter, subtree );
if (status == STATUS_PENDING) if (status == STATUS_PENDING)
{ {
if (overlapped) if (overlapped)