dlls/kernel/change.c

   1 /*
   2  * Win32 file change notification functions
   3  *
   4  * Copyright 1998 Ulrich Weigand
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winerror.h"
  30 #include "ntstatus.h"
  31 #include "kernel_private.h"
  32 #include "wine/windef16.h"
  33 #include "wine/server.h"
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(file);
  37
  38 /****************************************************************************
  39  *              FindFirstChangeNotificationA (KERNEL32.@)
  40  */
  41 HANDLE WINAPI FindFirstChangeNotificationA( LPCSTR lpPathName, BOOL bWatchSubtree,
  42                                             DWORD dwNotifyFilter )
  43 {
  44     WCHAR *pathW;
  45
  46     if (!(pathW = FILE_name_AtoW( lpPathName, FALSE ))) return INVALID_HANDLE_VALUE;
  47     return FindFirstChangeNotificationW( pathW, bWatchSubtree, dwNotifyFilter );
  48 }
  49
  50 /****************************************************************************
  51  *              FindFirstChangeNotificationW (KERNEL32.@)
  52  */
  53 HANDLE WINAPI FindFirstChangeNotificationW( LPCWSTR lpPathName, BOOL bWatchSubtree,
  54                                             DWORD dwNotifyFilter)
  55 {
  56     UNICODE_STRING nt_name;
  57     OBJECT_ATTRIBUTES attr;
  58     IO_STATUS_BLOCK io;
  59     NTSTATUS status;
  60     HANDLE file, ret = INVALID_HANDLE_VALUE;
  61
  62     TRACE( "%s %d %lx\n", debugstr_w(lpPathName), bWatchSubtree, dwNotifyFilter );
  63
  64     if (!RtlDosPathNameToNtPathName_U( lpPathName, &nt_name, NULL, NULL ))
  65     {
  66         SetLastError( ERROR_PATH_NOT_FOUND );
  67         return INVALID_HANDLE_VALUE;
  68     }
  69
  70     attr.Length = sizeof(attr);
  71     attr.RootDirectory = 0;
  72     attr.Attributes = OBJ_CASE_INSENSITIVE;
  73     attr.ObjectName = &nt_name;
  74     attr.SecurityDescriptor = NULL;
  75     attr.SecurityQualityOfService = NULL;
  76
  77     status = NtOpenFile( &file, 0, &attr, &io, 0,
  78                          FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
  79     RtlFreeUnicodeString( &nt_name );
  80
  81     if (status != STATUS_SUCCESS)
  82     {
  83         SetLastError( RtlNtStatusToDosError(status) );
  84         return INVALID_HANDLE_VALUE;
  85     }
  86
  87     SERVER_START_REQ( create_change_notification )
  88     {
  89         req->handle  = file;
  90         req->subtree = bWatchSubtree;
  91         req->filter  = dwNotifyFilter;
  92         if (!wine_server_call_err( req )) ret = reply->handle;
  93     }
  94     SERVER_END_REQ;
  95     CloseHandle( file );
  96     return ret;
  97 }
  98
  99 /****************************************************************************
 100  *              FindNextChangeNotification (KERNEL32.@)
 101  */
 102 BOOL WINAPI FindNextChangeNotification( HANDLE handle )
 103 {
 104     BOOL ret;
 105
 106     TRACE("%p\n",handle);
 107
 108     SERVER_START_REQ( next_change_notification )
 109     {
 110         req->handle = handle;
 111         ret = !wine_server_call_err( req );
 112     }
 113     SERVER_END_REQ;
 114     return ret;
 115 }
 116
 117 /****************************************************************************
 118  *              FindCloseChangeNotification (KERNEL32.@)
 119  */
 120 BOOL WINAPI FindCloseChangeNotification( HANDLE handle )
 121 {
 122     return CloseHandle( handle );
 123 }
 124
 125 /***********************************************************************
 126 *       FileCDR (KERNEL.130)
 127 */
 128 FARPROC16 WINAPI FileCDR16(FARPROC16 x)
 129 {
 130     FIXME("(0x%8x): stub\n", (int) x);
 131     return (FARPROC16)TRUE;
 132 }