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Update at_socket.c 

修改socket读取遗留数据逻辑
This commit is contained in:
HubretXie 2018-12-12 11:29:14 +08:00 committed by GitHub
parent 7ac5bd992f
commit 3a8c6f32c0
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 22 deletions
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32
components/net/at/at_socket/at_socket.c
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@ -627,6 +627,15 @@ int at_recvfrom(int socket, void *mem, size_t len, int flags, struct sockaddr *f
at_dev_ops->at_set_event_cb(AT_SOCKET_EVT_CLOSED, at_closed_notice_cb);
}
/* receive packet list last transmission of remaining data */
rt_mutex_take(sock->recv_lock, RT_WAITING_FOREVER);
if((recv_len = at_recvpkt_get(&(sock->recvpkt_list), (char *)mem, len)) > 0)
{
rt_mutex_release(sock->recv_lock);
goto __exit;
}
rt_mutex_release(sock->recv_lock);
/* socket passively closed, receive function return 0 */
if (sock->state == AT_SOCKET_CLOSED)
{
@ -640,15 +649,6 @@ int at_recvfrom(int socket, void *mem, size_t len, int flags, struct sockaddr *f
goto __exit;
}
/* receive packet list last transmission of remaining data */
rt_mutex_take(sock->recv_lock, RT_WAITING_FOREVER);
if((recv_len = at_recvpkt_get(&(sock->recvpkt_list), (char *)mem, len)) > 0)
{
rt_mutex_release(sock->recv_lock);
goto __exit;
}
rt_mutex_release(sock->recv_lock);
/* non-blocking sockets receive data */
if (flags & MSG_DONTWAIT)
{
@ -715,19 +715,7 @@ __exit:
}
else
{
/* try to read Legacy data */
/* receive packet list last transmission of remaining data */
rt_mutex_take(sock->recv_lock, RT_WAITING_FOREVER);
recv_len = at_recvpkt_get(&(sock->recvpkt_list), (char *)mem, len);
rt_mutex_release(sock->recv_lock);
if(recv_len<=0)
{
at_do_event_changes(sock, AT_EVENT_ERROR, RT_TRUE);
}
else
{
result = recv_len;
}
at_do_event_changes(sock, AT_EVENT_ERROR, RT_TRUE);
}
return result;