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netconn_accept: reduce number of ifdefs

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This commit is contained in:
goldsimon 2018-04-06 22:37:20 +02:00
parent 4cc953d0e3
commit fa55458c42
1 changed files with 15 additions and 17 deletions
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32
src/api/api_lib.c
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@ -81,6 +81,16 @@
#define API_MSG_VAR_ALLOC_RETURN_NULL(name) API_VAR_ALLOC(struct api_msg, MEMP_API_MSG, name, NULL)
#define API_MSG_VAR_FREE(name) API_VAR_FREE(MEMP_API_MSG, name)
#if TCP_LISTEN_BACKLOG
/* need to allocate API message for accept so empty message pool does not result in event loss
* see bug #47512: MPU_COMPATIBLE may fail on empty pool */
#define API_MSG_VAR_ALLOC_ACCEPT(msg) API_MSG_VAR_ALLOC(msg)
#define API_MSG_VAR_FREE_ACCEPT(msg) API_MSG_VAR_FREE(msg)
#else /* TCP_LISTEN_BACKLOG */
#define API_MSG_VAR_ALLOC_ACCEPT(msg)
#define API_MSG_VAR_FREE_ACCEPT(msg)
#endif /* TCP_LISTEN_BACKLOG */
static err_t netconn_close_shutdown(struct netconn *conn, u8_t how);
/**
@ -446,25 +456,17 @@ netconn_accept(struct netconn *conn, struct netconn **new_conn)
return ERR_CLSD;
}
#if TCP_LISTEN_BACKLOG
/* need to allocate API message here so empty message pool does not result in event loss
* see bug #47512: MPU_COMPATIBLE may fail on empty pool */
API_MSG_VAR_ALLOC(msg);
#endif /* TCP_LISTEN_BACKLOG */
API_MSG_VAR_ALLOC_ACCEPT(msg);
if (netconn_is_nonblocking(conn)) {
if (sys_arch_mbox_tryfetch(&conn->acceptmbox, &accept_ptr) == SYS_ARCH_TIMEOUT) {
#if TCP_LISTEN_BACKLOG
API_MSG_VAR_FREE(msg);
#endif /* TCP_LISTEN_BACKLOG */
API_MSG_VAR_FREE_ACCEPT(msg);
return ERR_WOULDBLOCK;
}
} else {
#if LWIP_SO_RCVTIMEO
if (sys_arch_mbox_fetch(&conn->acceptmbox, &accept_ptr, conn->recv_timeout) == SYS_ARCH_TIMEOUT) {
#if TCP_LISTEN_BACKLOG
API_MSG_VAR_FREE(msg);
#endif /* TCP_LISTEN_BACKLOG */
API_MSG_VAR_FREE_ACCEPT(msg);
return ERR_TIMEOUT;
}
#else
@ -476,16 +478,12 @@ netconn_accept(struct netconn *conn, struct netconn **new_conn)
if (lwip_netconn_is_err_msg(accept_ptr, &err)) {
/* a connection has been aborted: e.g. out of pcbs or out of netconns during accept */
#if TCP_LISTEN_BACKLOG
API_MSG_VAR_FREE(msg);
#endif /* TCP_LISTEN_BACKLOG */
API_MSG_VAR_FREE_ACCEPT(msg);
return err;
}
if (accept_ptr == NULL) {
/* connection has been aborted */
#if TCP_LISTEN_BACKLOG
API_MSG_VAR_FREE(msg);
#endif /* TCP_LISTEN_BACKLOG */
API_MSG_VAR_FREE_ACCEPT(msg);
return ERR_CLSD;
}
newconn = (struct netconn *)accept_ptr;