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tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c, sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API applications have to call 'tcp_accepted(pcb)' in their accept callback to keep accepting new connections.

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goldsimon
2007-12-21 16:47:56 +00:00
parent 48e62e25e9
commit 1ed34774c8
11 changed files with 93 additions and 11 deletions
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28
src/api/api_lib.c
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@@ -261,16 +261,23 @@ netconn_disconnect(struct netconn *conn)
* Set a TCP netconn into listen mode
*
* @param conn the tcp netconn to set to listen mode
* @param backlog the listen backlog (0 = max), only used if LWIP_LISTEN_BACKLOG==1
* @return ERR_OK if the netconn was set to listen (UDP and RAW netconns
* don't return any error (yet?))
*/
err_t
netconn_listen(struct netconn *conn)
netconn_listen_with_backlog(struct netconn *conn, u8_t backlog)
{
struct api_msg msg;
/* This does no harm. If LWIP_LISTEN_BACKLOG is off, backlog is unused. */
LWIP_UNUSED_ARG(backlog);
LWIP_ERROR("netconn_listen: invalid conn", (conn != NULL), return ERR_ARG;);
#if LWIP_LISTEN_BACKLOG
msg.msg.msg.lb.backlog = backlog;
#endif /* LWIP_LISTEN_BACKLOG */
msg.function = do_listen;
msg.msg.conn = conn;
TCPIP_APIMSG(&msg);
@@ -292,15 +299,26 @@ netconn_accept(struct netconn *conn)
LWIP_ERROR("netconn_accept: invalid acceptmbox", (conn->acceptmbox != SYS_MBOX_NULL), return NULL;);
#if LWIP_SO_RCVTIMEO
if (sys_arch_mbox_fetch(conn->acceptmbox, (void *)&newconn, conn->recv_timeout)==SYS_ARCH_TIMEOUT) {
if (sys_arch_mbox_fetch(conn->acceptmbox, (void *)&newconn, conn->recv_timeout) == SYS_ARCH_TIMEOUT) {
newconn = NULL;
}
} else
#else
sys_arch_mbox_fetch(conn->acceptmbox, (void *)&newconn, 0);
#endif /* LWIP_SO_RCVTIMEO*/
{
/* Register event with callback */
API_EVENT(conn, NETCONN_EVT_RCVMINUS, 0);
/* Register event with callback */
API_EVENT(conn, NETCONN_EVT_RCVMINUS, 0);
#if LWIP_LISTEN_BACKLOG
if (newconn != NULL) {
/* Let the stack know that we have accepted the connection. */
struct api_msg msg;
msg.function = do_recv;
msg.msg.conn = conn;
TCPIP_APIMSG(&msg);
}
#endif /* LWIP_LISTEN_BACKLOG */
}
return newconn;
}