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 "ntstatus.h"
  28 #define WIN32_NO_STATUS
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winerror.h"
  32 #include "winternl.h"
  33 #include "kernel_private.h"
  34 #include "wine/windef16.h"
  35 #include "wine/server.h"
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(file);
  39
  40 /****************************************************************************
  41  *              FindFirstChangeNotificationA (KERNEL32.@)
  42  */
  43 HANDLE WINAPI FindFirstChangeNotificationA( LPCSTR lpPathName, BOOL bWatchSubtree,
  44                                             DWORD dwNotifyFilter )
  45 {
  46     WCHAR *pathW;
  47
  48     if (!(pathW = FILE_name_AtoW( lpPathName, FALSE ))) return INVALID_HANDLE_VALUE;
  49     return FindFirstChangeNotificationW( pathW, bWatchSubtree, dwNotifyFilter );
  50 }
  51
  52 /****************************************************************************
  53  *              FindFirstChangeNotificationW (KERNEL32.@)
  54  */
  55 HANDLE WINAPI FindFirstChangeNotificationW( LPCWSTR lpPathName, BOOL bWatchSubtree,
  56                                             DWORD dwNotifyFilter)
  57 {
  58     UNICODE_STRING nt_name;
  59     OBJECT_ATTRIBUTES attr;
  60     IO_STATUS_BLOCK io;
  61     NTSTATUS status;
  62     HANDLE file, ret = INVALID_HANDLE_VALUE;
  63
  64     TRACE( "%s %d %lx\n", debugstr_w(lpPathName), bWatchSubtree, dwNotifyFilter );
  65
  66     if (!RtlDosPathNameToNtPathName_U( lpPathName, &nt_name, NULL, NULL ))
  67     {
  68         SetLastError( ERROR_PATH_NOT_FOUND );
  69         return INVALID_HANDLE_VALUE;
  70     }
  71
  72     attr.Length = sizeof(attr);
  73     attr.RootDirectory = 0;
  74     attr.Attributes = OBJ_CASE_INSENSITIVE;
  75     attr.ObjectName = &nt_name;
  76     attr.SecurityDescriptor = NULL;
  77     attr.SecurityQualityOfService = NULL;
  78
  79     status = NtOpenFile( &file, 0, &attr, &io, 0,
  80                          FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
  81     RtlFreeUnicodeString( &nt_name );
  82
  83     if (status != STATUS_SUCCESS)
  84     {
  85         SetLastError( RtlNtStatusToDosError(status) );
  86         return INVALID_HANDLE_VALUE;
  87     }
  88
  89     SERVER_START_REQ( create_change_notification )
  90     {
  91         req->access     = STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE;
  92         req->attributes = 0;
  93         req->handle     = file;
  94         req->subtree    = bWatchSubtree;
  95         req->filter     = dwNotifyFilter;
  96         if (!wine_server_call_err( req )) ret = reply->handle;
  97     }
  98     SERVER_END_REQ;
  99     CloseHandle( file );
 100     return ret;
 101 }
 102
 103 /****************************************************************************
 104  *              FindNextChangeNotification (KERNEL32.@)
 105  */
 106 BOOL WINAPI FindNextChangeNotification( HANDLE handle )
 107 {
 108     BOOL ret;
 109
 110     TRACE("%p\n",handle);
 111
 112     SERVER_START_REQ( next_change_notification )
 113     {
 114         req->handle = handle;
 115         ret = !wine_server_call_err( req );
 116     }
 117     SERVER_END_REQ;
 118     return ret;
 119 }
 120
 121 /****************************************************************************
 122  *              FindCloseChangeNotification (KERNEL32.@)
 123  */
 124 BOOL WINAPI FindCloseChangeNotification( HANDLE handle )
 125 {
 126     return CloseHandle( handle );
 127 }
 128
 129 /***********************************************************************
 130 *       FileCDR (KERNEL.130)
 131 */
 132 FARPROC16 WINAPI FileCDR16(FARPROC16 x)
 133 {
 134     FIXME("(%p): stub\n", x);
 135     return (FARPROC16)TRUE;
 136 }
 137
 138 BOOL WINAPI ReadDirectoryChangesW( HANDLE handle, LPVOID buffer, DWORD len, BOOL subtree,
 139                                    DWORD filter, LPDWORD returned, LPOVERLAPPED overlapped,
 140                                    LPOVERLAPPED_COMPLETION_ROUTINE completion )
 141 {
 142     FIXME( "%p %p 0x%08lx %d 0x%08lx %p %p %p\n", handle, buffer, len, subtree, filter,
 143            returned, overlapped, completion );
 144
 145     SetLastError( ERROR_INVALID_FUNCTION );
 146     return FALSE;
 147 }