Пример #1
0
/*
 * Flushing buffers takes an exclusive lock, so it must only be done when the world is
 * stopped, otherwise we might end up with a deadlock because a stopped thread owns the
 * lock.
 *
 * The protocol entries that do flush have `FLUSH()` in their definition.
 */
void
binary_protocol_flush_buffers (gboolean force)
{
#ifdef HAVE_UNISTD_H
	int num_buffers = 0, i;
	BinaryProtocolBuffer *buf;
	BinaryProtocolBuffer **bufs;

	if (binary_protocol_file == -1)
		return;

	if (!force && !try_lock_exclusive ())
		return;

	for (buf = binary_protocol_buffers; buf != NULL; buf = buf->next)
		++num_buffers;
	bufs = (BinaryProtocolBuffer **)sgen_alloc_internal_dynamic (num_buffers * sizeof (BinaryProtocolBuffer*), INTERNAL_MEM_BINARY_PROTOCOL, TRUE);
	for (buf = binary_protocol_buffers, i = 0; buf != NULL; buf = buf->next, i++)
		bufs [i] = buf;
	SGEN_ASSERT (0, i == num_buffers, "Binary protocol buffer count error");

	binary_protocol_buffers = NULL;

	for (i = num_buffers - 1; i >= 0; --i) {
		binary_protocol_flush_buffer (bufs [i]);
		binary_protocol_check_file_overflow ();
	}

	sgen_free_internal_dynamic (buf, num_buffers * sizeof (BinaryProtocolBuffer*), INTERNAL_MEM_BINARY_PROTOCOL);

	if (!force)
		unlock_exclusive ();
#endif
}
Пример #2
0
/*
 * Flushing buffers takes an exclusive lock, so it must only be done when the world is
 * stopped, otherwise we might end up with a deadlock because a stopped thread owns the
 * lock.
 *
 * The protocol entries that do flush have `FLUSH()` in their definition.
 */
gboolean
binary_protocol_flush_buffers (gboolean force)
{
#ifdef HAVE_UNISTD_H
	int num_buffers = 0, i;
	BinaryProtocolBuffer *header;
	BinaryProtocolBuffer *buf;
	BinaryProtocolBuffer **bufs;

	if (binary_protocol_file == -1)
		return FALSE;

	if (!force && !try_lock_exclusive ())
		return FALSE;

	header = binary_protocol_buffers;
	for (buf = header; buf != NULL; buf = buf->next)
		++num_buffers;
	bufs = (BinaryProtocolBuffer **)sgen_alloc_internal_dynamic (num_buffers * sizeof (BinaryProtocolBuffer*), INTERNAL_MEM_BINARY_PROTOCOL, TRUE);
	for (buf = header, i = 0; buf != NULL; buf = buf->next, i++)
		bufs [i] = buf;
	SGEN_ASSERT (0, i == num_buffers, "Binary protocol buffer count error");

	/*
	 * This might be incorrect when forcing, but all bets are off in that case, anyway,
	 * because we're trying to figure out a bug in the debugger.
	 */
	binary_protocol_buffers = NULL;

	for (i = num_buffers - 1; i >= 0; --i) {
		binary_protocol_flush_buffer (bufs [i]);
		binary_protocol_check_file_overflow ();
	}

	sgen_free_internal_dynamic (buf, num_buffers * sizeof (BinaryProtocolBuffer*), INTERNAL_MEM_BINARY_PROTOCOL);

	if (!force)
		unlock_exclusive ();

	return TRUE;
#endif
}