コード例 #1
0
ファイル: tcp-stream.c プロジェクト: alexrayne/uos-embedded
/* TODO stream is very inefficient of transmiting when receive -
 *      receiver forces transmiter to accasionaly flush out-buffer
 * */
static unsigned short
tcp_stream_getchar (tcp_stream_t *u)
{
	unsigned short c;
	tcp_socket_t*  s = u->socket;

	if (!s)
		return -1;
	mutex_lock (&s->lock);

	/* Flush output buffer. */
	if (u->outptr > u->outdata) {
		stream_flush (u);
		mutex_unlock (&s->lock);
		socket_flush (s);
		mutex_lock (&s->lock);
	}

	if (u->inbuf)
		mutex_unlock (&s->lock);
	else {
	    /* Wait for data. */
		while (tcp_queue_is_empty (s)) {
			if (!tcp_socket_is_state(s, TCP_STATES_TRANSFER)) {
				mutex_unlock (&s->lock);
				return -1;
			}
			mutex_wait (&s->lock);
		}
		u->inbuf = tcp_queue_get (s);
		u->inptr = u->inbuf->payload;
		mutex_unlock (&s->lock);
/*debug_printf ("tstream input"); buf_print (u->inbuf);*/

		mutex_lock (&s->ip->lock);
		if (! (s->flags & TF_ACK_DELAY) &&
		    ! (s->flags & TF_ACK_NOW)) {
			tcp_ack (s);
		}
		mutex_unlock (&s->ip->lock);
	}

	/* Get byte from buffer. */
	c = *u->inptr++;
	if (u->inptr >= u->inbuf->payload + u->inbuf->len) {
		buf_t *old = u->inbuf;

		u->inbuf = old->next;
		if (u->inbuf) {
			u->inptr = u->inbuf->payload;
			old->next = 0;
		}
		buf_free (old);
	}
	return c;
}
コード例 #2
0
ファイル: tcp-stream.c プロジェクト: alexrayne/uos-embedded
static void
tcp_stream_flush (tcp_stream_t *u)
{
    tcp_socket_t*  s = u->socket;
	if (! s)
		return;
	mutex_lock (&s->lock);

	/* Flush output buffer. */
	if (u->outptr <= u->outdata) {
		mutex_unlock (&s->lock);
		return;
	}
	stream_flush (u);
	mutex_unlock (&s->lock);

	/* Force IP level to send a packet. */
	socket_flush (s);
}
コード例 #3
0
ファイル: user.c プロジェクト: ldjbenben/quesion-game
void controller_user_login(bmessage_t* pMsg)
{
	bresponse_t response = {0};
	trans_str_size_t len = TRANS_STR_LEN;
	char pwd[TRANS_STR_LEN] = {0};
	int uid = 0;
	char sql[200] = {0};
	char* username = NULL;
	BMYSQL_RES* bresult;
	int ret = 0;
	
	uid = socket_read_int(pMsg);
	socket_read_string(pMsg, pwd, &len);
	
	snprintf(sql, 199, "select `username` from `qgame_users` where `uid`=%d and `password`=\"%s\"", uid, pwd);
	printf("before bmysql_query_scalar\n");
	int ret = bmysql_query_scalar(sql, &username, bresult);
	
	if(ret == 0)
	{
		printf("user login bresult->id:%d\tpMsg:%p\n", bresult->id, pMsg);

		if(username == NULL)
		{
			response.code = ERROR_USER_LOGIN_FAIL;
		}
		else
		{
			socket_write_string(&response, username, strlen(username));
			socket_write_int(&response, uid);
			socket_write_string(&response, pwd, len);
		}

		socket_flush(pMsg, &response);
		bmysql_free_result(bresult);
	}
	else
	{
		printf("mysql query error:%d\n", ret);
	}
}
コード例 #4
0
ファイル: tcp-stream.c プロジェクト: alexrayne/uos-embedded
static int
tcp_stream_peekchar (tcp_stream_t *u)
{
    tcp_socket_t*  s = u->socket;
	if (! s)
		return -1;
	mutex_lock (&s->lock);

	/* Flush output buffer. */
	if (u->outptr > u->outdata) {
		stream_flush (u);
		mutex_unlock (&s->lock);
		socket_flush (s);
		mutex_lock (&s->lock);
	}

	/* Any data available? */
	if (u->inbuf)
		mutex_unlock (&s->lock);
	else {
		if (tcp_queue_is_empty (s)) {
			mutex_unlock (&s->lock);
			return -1;
		}
		u->inbuf = tcp_queue_get (s);
		u->inptr = u->inbuf->payload;
		mutex_unlock (&s->lock);

		mutex_lock (&s->ip->lock);
		if (! (s->flags & TF_ACK_DELAY) &&
		    ! (s->flags & TF_ACK_NOW)) {
			tcp_ack (s);
		}
		mutex_unlock (&s->ip->lock);
	}
	return *u->inptr;
}
コード例 #5
0
ファイル: tcp-stream.c プロジェクト: alexrayne/uos-embedded
static void
tcp_stream_putchar (tcp_stream_t *u, short c)
{
    tcp_socket_t*  s = u->socket;
	if (! s)
		return;
	mutex_lock (&s->lock);
	if (!tcp_socket_is_state(s, TCP_STATES_TRANSFER | tcpfCLOSE_WAIT)) {
		/* Connection was closed. */
		mutex_unlock (&s->lock);
		return;
	}
	/* Put byte into output buffer. */
	*u->outptr++ = c;
	if (u->outptr < (u->outdata + u->outdata_size) ) {
		mutex_unlock (&s->lock);
		return;
	}
	stream_flush (u);
	mutex_unlock (&s->lock);

	/* Force IP level to send a packet. */
	socket_flush (s);
}