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kernel32: FindFirstChangeNotification needs a static IO_STATUS_BLOCK.

This commit is contained in:
Mike McCormack 2006-02-02 13:20:58 +01:00 committed by Alexandre Julliard
parent dc9789fbdd
commit d77baf358b
1 changed files with 13 additions and 5 deletions
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18
dlls/kernel/change.c
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@ -47,6 +47,13 @@ HANDLE WINAPI FindFirstChangeNotificationA( LPCSTR lpPathName, BOOL bWatchSubtre
return FindFirstChangeNotificationW( pathW, bWatchSubtree, dwNotifyFilter ); return FindFirstChangeNotificationW( pathW, bWatchSubtree, dwNotifyFilter );
} }
/*
* NtNotifyChangeDirectoryFile may write back to the IO_STATUS_BLOCK
* asynchronously. We don't care about the contents, but it can't
* be placed on the stack since it will go out of scope when we return.
*/
static IO_STATUS_BLOCK FindFirstChange_iosb;
/**************************************************************************** /****************************************************************************
* FindFirstChangeNotificationW (KERNEL32.@) * FindFirstChangeNotificationW (KERNEL32.@)
*/ */
@ -55,7 +62,6 @@ HANDLE WINAPI FindFirstChangeNotificationW( LPCWSTR lpPathName, BOOL bWatchSubtr
{ {
UNICODE_STRING nt_name; UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr; OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status; NTSTATUS status;
HANDLE handle = INVALID_HANDLE_VALUE; HANDLE handle = INVALID_HANDLE_VALUE;
@ -74,7 +80,8 @@ HANDLE WINAPI FindFirstChangeNotificationW( LPCWSTR lpPathName, BOOL bWatchSubtr
attr.SecurityDescriptor = NULL; attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL; attr.SecurityQualityOfService = NULL;
status = NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, status = NtOpenFile( &handle, FILE_LIST_DIRECTORY | SYNCHRONIZE,
&attr, &FindFirstChange_iosb,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ); FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
RtlFreeUnicodeString( &nt_name ); RtlFreeUnicodeString( &nt_name );
@ -85,7 +92,8 @@ HANDLE WINAPI FindFirstChangeNotificationW( LPCWSTR lpPathName, BOOL bWatchSubtr
return INVALID_HANDLE_VALUE; return INVALID_HANDLE_VALUE;
} }
status = NtNotifyChangeDirectoryFile( handle, NULL, NULL, NULL, &io, status = NtNotifyChangeDirectoryFile( handle, NULL, NULL, NULL,
&FindFirstChange_iosb,
NULL, 0, dwNotifyFilter, bWatchSubtree ); NULL, 0, dwNotifyFilter, bWatchSubtree );
if (status != STATUS_PENDING) if (status != STATUS_PENDING)
{ {
@ -101,12 +109,12 @@ HANDLE WINAPI FindFirstChangeNotificationW( LPCWSTR lpPathName, BOOL bWatchSubtr
*/ */
BOOL WINAPI FindNextChangeNotification( HANDLE handle ) BOOL WINAPI FindNextChangeNotification( HANDLE handle )
{ {
IO_STATUS_BLOCK io;
NTSTATUS status; NTSTATUS status;
TRACE("%p\n",handle); TRACE("%p\n",handle);
status = NtNotifyChangeDirectoryFile( handle, NULL, NULL, NULL, &io, status = NtNotifyChangeDirectoryFile( handle, NULL, NULL, NULL,
&FindFirstChange_iosb,
NULL, 0, FILE_NOTIFY_CHANGE_SIZE, 0 ); NULL, 0, FILE_NOTIFY_CHANGE_SIZE, 0 );
if (status != STATUS_PENDING) if (status != STATUS_PENDING)
{ {