abc/lwip
1
0
Fork 0
mirror of https://git.savannah.nongnu.org/git/lwip.git synced 2026-05-16 13:16:49 +08:00
Code Issues Packages Projects Releases Wiki Activity

tcpip.c: Implement an easier way for TCPIP API calls - client code does not have to deal with semaphores and core locking any more

Browse Source
This commit is contained in:
Dirk Ziegelmeier
2016-03-08 21:26:29 +01:00
parent 5e472badf1
commit 8106413644
2 changed files with 51 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
src/api/tcpip.c
View File

@@ -103,6 +103,11 @@ tcpip_thread(void *arg)
LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API message %p\n", (void *)msg));
msg->msg.api.function(msg->msg.api.msg);
break;
case TCPIP_MSG_API_CALL:
LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API CALL message %p\n", (void *)msg));
msg->msg.api_call->err = msg->msg.api_call->function(msg->msg.api_call);
sys_sem_signal(&msg->msg.api_call->sem);
break;
#endif /* LWIP_TCPIP_CORE_LOCKING */
#if !LWIP_TCPIP_CORE_LOCKING_INPUT
@@ -331,6 +336,38 @@ tcpip_send_api_msg(tcpip_callback_fn fn, void *apimsg, sys_sem_t* sem)
}
#endif /* !LWIP_TCPIP_CORE_LOCKING */
err_t tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call *call)
{
#if LWIP_TCPIP_CORE_LOCKING
LOCK_TCPIP_CORE();
call->err = fn(call);
UNLOCK_TCPIP_CORE();
return call->err;
#else
if (sys_mbox_valid_val(mbox)) {
TCPIP_MSG_VAR_DECLARE(msg);
err_t err;
err = sys_sem_new(&call->sem, 0);
if (err != ERR_OK) {
return err;
}
TCPIP_MSG_VAR_ALLOC(msg);
TCPIP_MSG_VAR_REF(msg).type = TCPIP_MSG_API_CALL;
TCPIP_MSG_VAR_REF(msg).msg.api_call = call;
TCPIP_MSG_VAR_REF(msg).msg.api_call->function = fn;
sys_mbox_post(&mbox, &TCPIP_MSG_VAR_REF(msg));
sys_arch_sem_wait(&call->sem, 0);
sys_sem_free(&call->sem);
TCPIP_MSG_VAR_FREE(msg);
return ERR_OK;
}
return ERR_VAL;
#endif
}
/**
* Allocate a structure for a static callback message and initialize it.
* This is intended to be used to send "static" messages from interrupt context.