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server: Added server-side FSCTL_PIPE_PEEK implementation.
Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
parent
7ae689d668
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134c83203a
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@ -1727,7 +1727,12 @@ NTSTATUS WINAPI NtFsControlFile(HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc
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}
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if ((status = server_get_unix_fd( handle, FILE_READ_DATA, &fd, &needs_close, NULL, NULL )))
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{
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if (status == STATUS_BAD_DEVICE_TYPE)
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status = server_ioctl_file( handle, event, apc, apc_context, io, code,
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in_buffer, in_size, out_buffer, out_size );
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break;
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}
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#ifdef FIONREAD
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if (ioctl( fd, FIONREAD, &avail ) != 0)
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@ -208,6 +208,8 @@ static int pipe_client_signaled( struct object *obj, struct wait_queue_entry *en
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static struct fd *pipe_client_get_fd( struct object *obj );
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static void pipe_client_destroy( struct object *obj );
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static obj_handle_t pipe_client_flush( struct fd *fd, struct async *async, int blocking );
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static obj_handle_t pipe_client_ioctl( struct fd *fd, ioctl_code_t code, struct async *async,
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int blocking );
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static enum server_fd_type pipe_client_get_fd_type( struct fd *fd );
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static const struct object_ops pipe_client_ops =
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@ -240,7 +242,7 @@ static const struct fd_ops pipe_client_fd_ops =
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no_fd_read, /* read */
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pipe_end_write, /* write */
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pipe_client_flush, /* flush */
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default_fd_ioctl, /* ioctl */
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pipe_client_ioctl, /* ioctl */
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pipe_end_queue_async, /* queue_async */
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pipe_end_reselect_async /* reselect_async */
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};
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@ -792,6 +794,44 @@ static enum server_fd_type pipe_client_get_fd_type( struct fd *fd )
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return FD_TYPE_PIPE;
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}
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static void pipe_end_peek( struct pipe_end *pipe_end )
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{
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unsigned reply_size = get_reply_max_size();
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FILE_PIPE_PEEK_BUFFER *buffer;
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struct pipe_message *message;
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data_size_t avail = 0;
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if (!use_server_io( pipe_end ))
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{
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set_error( STATUS_NOT_SUPPORTED );
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return;
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}
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if (reply_size < offsetof( FILE_PIPE_PEEK_BUFFER, Data ))
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{
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set_error( STATUS_INFO_LENGTH_MISMATCH );
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return;
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}
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reply_size -= offsetof( FILE_PIPE_PEEK_BUFFER, Data );
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LIST_FOR_EACH_ENTRY( message, &pipe_end->message_queue, struct pipe_message, entry )
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avail += message->iosb->in_size - message->read_pos;
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if (avail)
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{
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message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
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reply_size = min( reply_size, message->iosb->in_size - message->read_pos );
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}
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else reply_size = 0;
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if (!(buffer = set_reply_data_size( offsetof( FILE_PIPE_PEEK_BUFFER, Data[reply_size] )))) return;
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buffer->NamedPipeState = 0; /* FIXME */
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buffer->ReadDataAvailable = avail;
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buffer->NumberOfMessages = 0; /* FIXME */
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buffer->MessageLength = 0; /* FIXME */
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if (reply_size) memcpy( buffer->Data, (const char *)message->iosb->in_data + message->read_pos, reply_size );
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}
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static obj_handle_t pipe_server_ioctl( struct fd *fd, ioctl_code_t code, struct async *async,
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int blocking )
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{
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@ -858,6 +898,26 @@ static obj_handle_t pipe_server_ioctl( struct fd *fd, ioctl_code_t code, struct
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}
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return 0;
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case FSCTL_PIPE_PEEK:
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pipe_end_peek( &server->pipe_end );
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return 0;
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default:
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return default_fd_ioctl( fd, code, async, blocking );
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}
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}
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static obj_handle_t pipe_client_ioctl( struct fd *fd, ioctl_code_t code, struct async *async,
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int blocking )
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{
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struct pipe_client *client = get_fd_user( fd );
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switch(code)
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{
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case FSCTL_PIPE_PEEK:
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pipe_end_peek( &client->pipe_end );
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return 0;
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default:
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return default_fd_ioctl( fd, code, async, blocking );
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}
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