ntdll: Move NtNotifyChangeDirectoryFile to file.c and make it use the standard fileio structure.
This commit is contained in:
Alexandre Julliard
parent
4f43d743e0
commit
ff84bf8bdd
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@ -3295,160 +3295,3 @@ done:
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RtlReleasePebLock();
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return status;
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}
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struct read_changes_info
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{
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HANDLE FileHandle;
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PVOID Buffer;
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ULONG BufferSize;
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ULONG data_size;
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PIO_APC_ROUTINE apc;
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void *apc_arg;
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char data[1];
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};
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/* callback for ioctl user APC */
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static void WINAPI read_changes_user_apc( void *arg, IO_STATUS_BLOCK *io, ULONG reserved )
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{
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struct read_changes_info *info = arg;
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if (info->apc) info->apc( info->apc_arg, io, reserved );
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RtlFreeHeap( GetProcessHeap(), 0, info );
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}
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static NTSTATUS read_changes_apc( void *user, PIO_STATUS_BLOCK iosb, NTSTATUS status, void **apc )
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{
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struct read_changes_info *info = user;
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NTSTATUS ret;
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int size;
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SERVER_START_REQ( read_change )
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{
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req->handle = wine_server_obj_handle( info->FileHandle );
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wine_server_set_reply( req, info->data, info->data_size );
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ret = wine_server_call( req );
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size = wine_server_reply_size( reply );
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}
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SERVER_END_REQ;
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if (ret == STATUS_SUCCESS && info->Buffer)
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{
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PFILE_NOTIFY_INFORMATION pfni = info->Buffer;
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int i, left = info->BufferSize;
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DWORD *last_entry_offset = NULL;
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struct filesystem_event *event = (struct filesystem_event*)info->data;
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while (size && left >= sizeof(*pfni))
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{
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/* convert to an NT style path */
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for (i=0; i<event->len; i++)
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if (event->name[i] == '/')
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event->name[i] = '\\';
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pfni->Action = event->action;
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pfni->FileNameLength = ntdll_umbstowcs( 0, event->name, event->len, pfni->FileName,
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(left - offsetof(FILE_NOTIFY_INFORMATION, FileName)) / sizeof(WCHAR));
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last_entry_offset = &pfni->NextEntryOffset;
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if(pfni->FileNameLength == -1 || pfni->FileNameLength == -2)
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break;
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i = offsetof(FILE_NOTIFY_INFORMATION, FileName[pfni->FileNameLength]);
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pfni->FileNameLength *= sizeof(WCHAR);
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pfni->NextEntryOffset = i;
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pfni = (FILE_NOTIFY_INFORMATION*)((char*)pfni + i);
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left -= i;
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i = (offsetof(struct filesystem_event, name[event->len])
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+ sizeof(int)-1) / sizeof(int) * sizeof(int);
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event = (struct filesystem_event*)((char*)event + i);
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size -= i;
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}
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if (size)
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{
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ret = STATUS_NOTIFY_ENUM_DIR;
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size = 0;
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}
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else
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{
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*last_entry_offset = 0;
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size = info->BufferSize - left;
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}
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}
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else
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{
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ret = STATUS_NOTIFY_ENUM_DIR;
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size = 0;
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}
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iosb->u.Status = ret;
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iosb->Information = size;
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*apc = read_changes_user_apc;
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return ret;
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}
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#define FILE_NOTIFY_ALL ( \
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FILE_NOTIFY_CHANGE_FILE_NAME | \
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FILE_NOTIFY_CHANGE_DIR_NAME | \
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FILE_NOTIFY_CHANGE_ATTRIBUTES | \
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FILE_NOTIFY_CHANGE_SIZE | \
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FILE_NOTIFY_CHANGE_LAST_WRITE | \
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FILE_NOTIFY_CHANGE_LAST_ACCESS | \
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FILE_NOTIFY_CHANGE_CREATION | \
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FILE_NOTIFY_CHANGE_SECURITY )
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/******************************************************************************
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* NtNotifyChangeDirectoryFile [NTDLL.@]
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*/
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NTSTATUS WINAPI
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NtNotifyChangeDirectoryFile( HANDLE FileHandle, HANDLE Event,
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PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext,
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PIO_STATUS_BLOCK IoStatusBlock, PVOID Buffer,
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ULONG BufferSize, ULONG CompletionFilter, BOOLEAN WatchTree )
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{
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struct read_changes_info *info;
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NTSTATUS status;
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ULONG size = max( 4096, BufferSize );
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ULONG_PTR cvalue = ApcRoutine ? 0 : (ULONG_PTR)ApcContext;
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TRACE("%p %p %p %p %p %p %u %u %d\n",
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FileHandle, Event, ApcRoutine, ApcContext, IoStatusBlock,
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Buffer, BufferSize, CompletionFilter, WatchTree );
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if (!IoStatusBlock)
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return STATUS_ACCESS_VIOLATION;
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if (CompletionFilter == 0 || (CompletionFilter & ~FILE_NOTIFY_ALL))
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return STATUS_INVALID_PARAMETER;
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info = RtlAllocateHeap( GetProcessHeap(), 0, offsetof( struct read_changes_info, data[size] ));
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if (!info)
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return STATUS_NO_MEMORY;
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info->FileHandle = FileHandle;
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info->Buffer = Buffer;
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info->BufferSize = BufferSize;
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info->apc = ApcRoutine;
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info->apc_arg = ApcContext;
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info->data_size = size;
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SERVER_START_REQ( read_directory_changes )
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{
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req->filter = CompletionFilter;
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req->want_data = (Buffer != NULL);
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req->subtree = WatchTree;
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req->async.handle = wine_server_obj_handle( FileHandle );
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req->async.callback = wine_server_client_ptr( read_changes_apc );
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req->async.iosb = wine_server_client_ptr( IoStatusBlock );
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req->async.arg = wine_server_client_ptr( info );
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req->async.event = wine_server_obj_handle( Event );
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req->async.cvalue = cvalue;
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status = wine_server_call( req );
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}
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SERVER_END_REQ;
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if (status != STATUS_PENDING)
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RtlFreeHeap( GetProcessHeap(), 0, info );
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return status;
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}
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@ -1664,6 +1664,144 @@ NTSTATUS WINAPI NtFsControlFile(HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc
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return status;
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}
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struct read_changes_fileio
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{
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struct async_fileio io;
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void *buffer;
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ULONG buffer_size;
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ULONG data_size;
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char data[1];
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};
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static NTSTATUS read_changes_apc( void *user, PIO_STATUS_BLOCK iosb, NTSTATUS status, void **apc )
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{
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struct read_changes_fileio *fileio = user;
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NTSTATUS ret;
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int size;
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SERVER_START_REQ( read_change )
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{
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req->handle = wine_server_obj_handle( fileio->io.handle );
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wine_server_set_reply( req, fileio->data, fileio->data_size );
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ret = wine_server_call( req );
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size = wine_server_reply_size( reply );
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}
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SERVER_END_REQ;
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if (ret == STATUS_SUCCESS && fileio->buffer)
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{
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FILE_NOTIFY_INFORMATION *pfni = fileio->buffer;
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int i, left = fileio->buffer_size;
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DWORD *last_entry_offset = NULL;
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struct filesystem_event *event = (struct filesystem_event*)fileio->data;
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while (size && left >= sizeof(*pfni))
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{
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/* convert to an NT style path */
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for (i=0; i<event->len; i++)
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if (event->name[i] == '/') event->name[i] = '\\';
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pfni->Action = event->action;
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pfni->FileNameLength = ntdll_umbstowcs( 0, event->name, event->len, pfni->FileName,
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(left - offsetof(FILE_NOTIFY_INFORMATION, FileName)) / sizeof(WCHAR));
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last_entry_offset = &pfni->NextEntryOffset;
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if (pfni->FileNameLength == -1 || pfni->FileNameLength == -2) break;
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i = offsetof(FILE_NOTIFY_INFORMATION, FileName[pfni->FileNameLength]);
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pfni->FileNameLength *= sizeof(WCHAR);
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pfni->NextEntryOffset = i;
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pfni = (FILE_NOTIFY_INFORMATION*)((char*)pfni + i);
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left -= i;
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i = (offsetof(struct filesystem_event, name[event->len])
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+ sizeof(int)-1) / sizeof(int) * sizeof(int);
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event = (struct filesystem_event*)((char*)event + i);
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size -= i;
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}
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if (size)
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{
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ret = STATUS_NOTIFY_ENUM_DIR;
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size = 0;
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}
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else
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{
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*last_entry_offset = 0;
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size = fileio->buffer_size - left;
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}
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}
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else
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{
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ret = STATUS_NOTIFY_ENUM_DIR;
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size = 0;
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}
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iosb->u.Status = ret;
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iosb->Information = size;
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*apc = fileio_apc;
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return ret;
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}
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#define FILE_NOTIFY_ALL ( \
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FILE_NOTIFY_CHANGE_FILE_NAME | \
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FILE_NOTIFY_CHANGE_DIR_NAME | \
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FILE_NOTIFY_CHANGE_ATTRIBUTES | \
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FILE_NOTIFY_CHANGE_SIZE | \
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FILE_NOTIFY_CHANGE_LAST_WRITE | \
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FILE_NOTIFY_CHANGE_LAST_ACCESS | \
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FILE_NOTIFY_CHANGE_CREATION | \
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FILE_NOTIFY_CHANGE_SECURITY )
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/******************************************************************************
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* NtNotifyChangeDirectoryFile [NTDLL.@]
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*/
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NTSTATUS WINAPI NtNotifyChangeDirectoryFile( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc,
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void *apc_context, PIO_STATUS_BLOCK iosb, void *buffer,
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ULONG buffer_size, ULONG filter, BOOLEAN subtree )
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{
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struct read_changes_fileio *fileio;
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NTSTATUS status;
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ULONG size = max( 4096, buffer_size );
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ULONG_PTR cvalue = apc ? 0 : (ULONG_PTR)apc_context;
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TRACE( "%p %p %p %p %p %p %u %u %d\n",
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handle, event, apc, apc_context, iosb, buffer, buffer_size, filter, subtree );
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if (!iosb) return STATUS_ACCESS_VIOLATION;
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if (filter == 0 || (filter & ~FILE_NOTIFY_ALL)) return STATUS_INVALID_PARAMETER;
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fileio = RtlAllocateHeap( GetProcessHeap(), 0, offsetof( struct read_changes_fileio, data[size] ));
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if (!fileio)
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return STATUS_NO_MEMORY;
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fileio->io.handle = handle;
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fileio->io.apc = apc;
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fileio->io.apc_arg = apc_context;
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fileio->buffer = buffer;
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fileio->buffer_size = buffer_size;
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fileio->data_size = size;
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SERVER_START_REQ( read_directory_changes )
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{
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req->filter = filter;
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req->want_data = (buffer != NULL);
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req->subtree = subtree;
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req->async.handle = wine_server_obj_handle( handle );
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req->async.callback = wine_server_client_ptr( read_changes_apc );
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req->async.iosb = wine_server_client_ptr( iosb );
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req->async.arg = wine_server_client_ptr( fileio );
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req->async.event = wine_server_obj_handle( event );
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req->async.cvalue = cvalue;
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status = wine_server_call( req );
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}
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SERVER_END_REQ;
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if (status != STATUS_PENDING) RtlFreeHeap( GetProcessHeap(), 0, fileio );
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return status;
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}
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/******************************************************************************
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* NtSetVolumeInformationFile [NTDLL.@]
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* ZwSetVolumeInformationFile [NTDLL.@]
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