137 lines
3.9 KiB
C
137 lines
3.9 KiB
C
/*
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* Win32 file change notification functions
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*
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* Copyright 1998 Ulrich Weigand
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*/
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#include <assert.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <time.h>
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#include "windows.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "process.h"
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#include "thread.h"
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#include "heap.h"
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#include "server.h"
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#include "debug.h"
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static void CHANGE_Destroy( K32OBJ *obj );
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const K32OBJ_OPS CHANGE_Ops =
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{
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CHANGE_Destroy /* destroy */
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};
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/* The change notification object */
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typedef struct
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{
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K32OBJ header;
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LPSTR lpPathName;
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BOOL32 bWatchSubtree;
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DWORD dwNotifyFilter;
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BOOL32 notify;
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} CHANGE_OBJECT;
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/****************************************************************************
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* CHANGE_Destroy
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*/
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static void CHANGE_Destroy( K32OBJ *obj )
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{
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CHANGE_OBJECT *change = (CHANGE_OBJECT *)obj;
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assert( obj->type == K32OBJ_CHANGE );
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if ( change->lpPathName )
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{
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HeapFree( SystemHeap, 0, change->lpPathName );
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change->lpPathName = NULL;
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}
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obj->type = K32OBJ_UNKNOWN;
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HeapFree( SystemHeap, 0, change );
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}
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/****************************************************************************
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* FindFirstChangeNotification32A (KERNEL32.248)
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*/
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HANDLE32 WINAPI FindFirstChangeNotification32A( LPCSTR lpPathName,
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BOOL32 bWatchSubtree,
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DWORD dwNotifyFilter )
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{
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CHANGE_OBJECT *change;
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struct create_change_notification_request req;
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struct create_change_notification_reply reply;
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req.subtree = bWatchSubtree;
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req.filter = dwNotifyFilter;
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CLIENT_SendRequest( REQ_CREATE_CHANGE_NOTIFICATION, -1, 1, &req, sizeof(req) );
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CLIENT_WaitSimpleReply( &reply, sizeof(reply), NULL );
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if (reply.handle == -1) return INVALID_HANDLE_VALUE32;
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change = HeapAlloc( SystemHeap, 0, sizeof(CHANGE_OBJECT) );
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if (!change)
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{
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CLIENT_CloseHandle( reply.handle );
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return INVALID_HANDLE_VALUE32;
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}
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change->header.type = K32OBJ_CHANGE;
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change->header.refcount = 1;
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change->lpPathName = HEAP_strdupA( SystemHeap, 0, lpPathName );
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change->bWatchSubtree = bWatchSubtree;
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change->dwNotifyFilter = dwNotifyFilter;
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change->notify = FALSE;
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return HANDLE_Alloc( PROCESS_Current(), &change->header,
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STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE /*FIXME*/,
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FALSE, reply.handle );
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}
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/****************************************************************************
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* FindFirstChangeNotification32W (KERNEL32.249)
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*/
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HANDLE32 WINAPI FindFirstChangeNotification32W( LPCWSTR lpPathName,
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BOOL32 bWatchSubtree,
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DWORD dwNotifyFilter)
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{
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LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, lpPathName );
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HANDLE32 ret = FindFirstChangeNotification32A( nameA, bWatchSubtree,
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dwNotifyFilter );
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if (nameA) HeapFree( GetProcessHeap(), 0, nameA );
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return ret;
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}
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/****************************************************************************
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* FindNextChangeNotification (KERNEL32.252)
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*/
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BOOL32 WINAPI FindNextChangeNotification( HANDLE32 handle )
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{
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CHANGE_OBJECT *change;
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SYSTEM_LOCK();
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if (!(change = (CHANGE_OBJECT *)HANDLE_GetObjPtr( PROCESS_Current(),
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handle, K32OBJ_CHANGE,
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0 /*FIXME*/, NULL )) )
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{
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SYSTEM_UNLOCK();
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return FALSE;
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}
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change->notify = FALSE;
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K32OBJ_DecCount( &change->header );
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SYSTEM_UNLOCK();
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return TRUE;
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}
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/****************************************************************************
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* FindCloseChangeNotification (KERNEL32.247)
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*/
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BOOL32 WINAPI FindCloseChangeNotification( HANDLE32 handle)
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{
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return CloseHandle( handle );
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}
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