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api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than TCP_EVENT_xxx macros to get a code more readable. It could also help to remove some code (like we have talk in "patch #5919 : Create compile switch to remove select code"), but it could be done later.

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This commit is contained in:
fbernon 2007-10-24 12:09:18 +00:00
parent 270c7c1110
commit 7077d51f1f
4 changed files with 37 additions and 49 deletions
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6
CHANGELOG
View File

@ -19,6 +19,12 @@ HISTORY
++ New features:
2007-10-24 Frédéric Bernon
* api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
some code (like we have talk in "patch #5919 : Create compile switch to remove
select code"), but it could be done later.
2007-10-08 Simon Goldschmidt
* many files: Changed initialization: many init functions are not needed any
more since we now rely on the compiler initializing global and static

12
src/api/api_lib.c
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@ -385,8 +385,7 @@ netconn_accept(struct netconn *conn)
#endif /* LWIP_SO_RCVTIMEO*/
/* Register event with callback */
if (conn->callback)
(*conn->callback)(conn, NETCONN_EVT_RCVMINUS, 0);
API_EVENT(conn, NETCONN_EVT_RCVMINUS, 0);
return newconn;
}
@ -449,14 +448,12 @@ netconn_recv(struct netconn *conn)
}
/* Register event with callback */
if (conn->callback) {
(*conn->callback)(conn, NETCONN_EVT_RCVMINUS, len);
}
API_EVENT(conn, NETCONN_EVT_RCVMINUS, len);
/* If we are closed, we indicate that we no longer wish to use the socket */
if (p == NULL) {
memp_free(MEMP_NETBUF, buf);
/* Avoid to loose any previous error code */
/* Avoid to lose any previous error code */
if (conn->err == ERR_OK) {
conn->err = ERR_CLSD;
}
@ -490,8 +487,7 @@ netconn_recv(struct netconn *conn)
if (buf!=NULL) {
conn->recv_avail -= buf->p->tot_len;
/* Register event with callback */
if (conn->callback)
(*conn->callback)(conn, NETCONN_EVT_RCVMINUS, buf->p->tot_len);
API_EVENT(conn, NETCONN_EVT_RCVMINUS, buf->p->tot_len);
}
#endif /* (LWIP_UDP || LWIP_RAW) */
}

63
src/api/api_msg.c
View File

@ -82,9 +82,7 @@ recv_raw(void *arg, struct raw_pcb *pcb, struct pbuf *p,
conn->recv_avail += p->tot_len;
/* Register event with callback */
if (conn->callback) {
(*conn->callback)(conn, NETCONN_EVT_RCVPLUS, p->tot_len);
}
API_EVENT(conn, NETCONN_EVT_RCVPLUS, p->tot_len);
sys_mbox_post(conn->recvmbox, buf);
}
@ -128,9 +126,7 @@ recv_udp(void *arg, struct udp_pcb *pcb, struct pbuf *p,
conn->recv_avail += p->tot_len;
/* Register event with callback */
if (conn->callback) {
(*conn->callback)(conn, NETCONN_EVT_RCVPLUS, p->tot_len);
}
API_EVENT(conn, NETCONN_EVT_RCVPLUS, p->tot_len);
sys_mbox_post(conn->recvmbox, buf);
}
#endif /* LWIP_UDP */
@ -165,9 +161,7 @@ recv_tcp(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err)
len = 0;
}
/* Register event with callback */
if (conn->callback) {
(*conn->callback)(conn, NETCONN_EVT_RCVPLUS, len);
}
API_EVENT(conn, NETCONN_EVT_RCVPLUS, len);
sys_mbox_post(conn->recvmbox, p);
return ERR_OK;
@ -203,7 +197,7 @@ poll_tcp(void *arg, struct tcp_pcb *pcb)
/**
* Sent callback function for TCP netconns.
* Signals the conn->sem and calls conn->callback.
* Signals the conn->sem and calls API_EVENT.
* netconn_write waits for conn->sem if send buffer is low.
*
* @see tcp.h (struct tcp_pcb.sent) for parameters and return value
@ -223,9 +217,9 @@ sent_tcp(void *arg, struct tcp_pcb *pcb, u16_t len)
do_close_internal(conn);
}
if (conn && conn->callback) {
if (conn) {
if ((conn->pcb.tcp != NULL) && (tcp_sndbuf(conn->pcb.tcp) > TCP_SNDLOWAT)) {
(*conn->callback)(conn, NETCONN_EVT_SENDPLUS, len);
API_EVENT(conn, NETCONN_EVT_SENDPLUS, len);
}
}
@ -234,7 +228,7 @@ sent_tcp(void *arg, struct tcp_pcb *pcb, u16_t len)
/**
* Error callback function for TCP netconns.
* Signals conn->sem, posts to all conn mboxes and calls conn->callback.
* Signals conn->sem, posts to all conn mboxes and calls API_EVENT.
* The application thread has then to decide what to do.
*
* @see tcp.h (struct tcp_pcb.err) for parameters
@ -252,9 +246,7 @@ err_tcp(void *arg, err_t err)
conn->err = err;
if (conn->recvmbox != SYS_MBOX_NULL) {
/* Register event with callback */
if (conn->callback) {
(*conn->callback)(conn, NETCONN_EVT_RCVPLUS, 0);
}
API_EVENT(conn, NETCONN_EVT_RCVPLUS, 0);
sys_mbox_post(conn->recvmbox, NULL);
}
if (conn->mbox != SYS_MBOX_NULL && conn->state == NETCONN_CONNECT) {
@ -262,10 +254,8 @@ err_tcp(void *arg, err_t err)
sys_mbox_post(conn->mbox, NULL);
}
if (conn->acceptmbox != SYS_MBOX_NULL) {
/* Register event with callback */
if (conn->callback) {
(*conn->callback)(conn, NETCONN_EVT_RCVPLUS, 0);
}
/* Register event with callback */
API_EVENT(conn, NETCONN_EVT_RCVPLUS, 0);
sys_mbox_post(conn->acceptmbox, NULL);
}
if ((conn->state == NETCONN_WRITE) || (conn->state == NETCONN_CLOSE)) {
@ -341,9 +331,7 @@ accept_function(void *arg, struct tcp_pcb *newpcb, err_t err)
newconn->acceptmbox = SYS_MBOX_NULL;
newconn->err = err;
/* Register event with callback */
if (conn->callback) {
(*conn->callback)(conn, NETCONN_EVT_RCVPLUS, 0);
}
API_EVENT(conn, NETCONN_EVT_RCVPLUS, 0);
/* We have to set the callback here even though
* the new socket is unknown. Mark the socket as -1. */
newconn->callback = conn->callback;
@ -469,13 +457,10 @@ do_close_internal(struct netconn *conn)
tcp_arg(conn->pcb.tcp, NULL);
conn->pcb.tcp = NULL;
conn->err = ERR_OK;
/* Trigger select() in socket layer */
if (conn->callback) {
/* this should send something else so the errorfd is set,
not the read and write fd! */
(*conn->callback)(conn, NETCONN_EVT_RCVPLUS, 0);
(*conn->callback)(conn, NETCONN_EVT_SENDPLUS, 0);
}
/* Trigger select() in socket layer. This send should something else so the
errorfd is set, not the read and write fd! */
API_EVENT(conn, NETCONN_EVT_RCVPLUS, 0);
API_EVENT(conn, NETCONN_EVT_SENDPLUS, 0);
/* wake up the application task */
sys_mbox_post(conn->mbox, NULL);
}
@ -510,7 +495,7 @@ do_delconn(struct api_msg_msg *msg)
case NETCONN_TCP:
msg->conn->state = NETCONN_CLOSE;
do_close_internal(msg->conn);
/* conn->callback is called inside do_close_internal, before releasing
/* API_EVENT is called inside do_close_internal, before releasing
the application thread, so we can return at this point! */
return;
#endif /* LWIP_TCP */
@ -520,13 +505,10 @@ do_delconn(struct api_msg_msg *msg)
}
/* tcp netconns don't come here! */
/* Trigger select() in socket layer */
if (msg->conn->callback) {
/* this send should something else so the errorfd is set,
not the read and write fd! */
(*msg->conn->callback)(msg->conn, NETCONN_EVT_RCVPLUS, 0);
(*msg->conn->callback)(msg->conn, NETCONN_EVT_SENDPLUS, 0);
}
/* Trigger select() in socket layer. This send should something else so the
errorfd is set, not the read and write fd! */
API_EVENT(msg->conn, NETCONN_EVT_RCVPLUS, 0);
API_EVENT(msg->conn, NETCONN_EVT_SENDPLUS, 0);
if (msg->conn->mbox != SYS_MBOX_NULL) {
sys_mbox_post(msg->conn->mbox, NULL);
@ -814,9 +796,8 @@ do_writemore(struct netconn *conn)
}
err = tcp_output_nagle(conn->pcb.tcp);
conn->err = err;
if ((conn->callback) && (err == ERR_OK) &&
(tcp_sndbuf(conn->pcb.tcp) <= TCP_SNDLOWAT)) {
(*conn->callback)(conn, NETCONN_EVT_SENDMINUS, len);
if ((err == ERR_OK) && (tcp_sndbuf(conn->pcb.tcp) <= TCP_SNDLOWAT)) {
API_EVENT(conn, NETCONN_EVT_SENDMINUS, len);
}
} else if (err == ERR_MEM) {
#if LWIP_TCPIP_CORE_LOCKING

5
src/include/lwip/api.h
View File

@ -53,6 +53,7 @@ extern "C" {
* the same byte order as in the corresponding pcb.
*/
/* Flags for netconn_write */
#define NETCONN_NOCOPY 0x00
#define NETCONN_COPY 0x01
@ -128,6 +129,10 @@ struct netconn {
void (* callback)(struct netconn *, enum netconn_evt, u16_t len);
};
/* Register an Network connection event */
#define API_EVENT(c,e,l) if (c->callback) { \
(*c->callback)(c, e, l); \
}
/* Network connection functions: */
#define netconn_new(t) netconn_new_with_proto_and_callback(t, 0, NULL)