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sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h: Introduce changes for task #7490 "Add return value to sys_mbox_post" with some modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which indicate the number of pointers query by the mailbox. There is three defines in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the netconn::acceptmbox. Port maintainers, you can decide to just add this new parameter in your implementation, but to ignore it to keep the previous behavior. The new sys_mbox_trypost function return a value to know if the mailbox is full or if the message is posted. Take a look to sys_arch.txt for more details. This new function is used in tcpip_input (so, can be called in an interrupt context since the function is not blocking), and in recv_udp and recv_raw.

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fbernon
2008-01-05 21:10:32 +00:00
parent caa1834b70
commit 5941b3c86e
9 changed files with 87 additions and 22 deletions
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7
src/api/tcpip.c
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@@ -332,7 +332,10 @@ tcpip_input(struct pbuf *p, struct netif *inp)
msg->type = TCPIP_MSG_INPKT;
msg->msg.inp.p = p;
msg->msg.inp.netif = inp;
sys_mbox_post(mbox, msg);
if (sys_mbox_trypost(mbox, msg) != ERR_OK) {
memp_free(MEMP_TCPIP_MSG_INPKT, msg);
return ERR_MEM;
}
return ERR_OK;
}
return ERR_VAL;
@@ -499,7 +502,7 @@ tcpip_init(void (* initfunc)(void *), void *arg)
tcpip_init_done = initfunc;
tcpip_init_done_arg = arg;
mbox = sys_mbox_new();
mbox = sys_mbox_new(TCPIP_MBOX_SIZE);
#if LWIP_TCPIP_CORE_LOCKING
lock_tcpip_core = sys_sem_new(1);
#endif /* LWIP_TCPIP_CORE_LOCKING */