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Bring unix sys_arch.c up to current CVS HEAD API

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This commit is contained in:
kieranm 2008-01-17 11:51:09 +00:00
parent bddf652073
commit e021174865
1 changed files with 32 additions and 1 deletions
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33
ports/unix/sys_arch.c
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@ -176,7 +176,7 @@ sys_thread_new(char *name, void (* function)(void *arg), void *arg, int stacksiz
}
/*-----------------------------------------------------------------------------------*/
struct sys_mbox *
sys_mbox_new()
sys_mbox_new(int size)
{
struct sys_mbox *mbox;
@ -213,7 +213,38 @@ sys_mbox_free(struct sys_mbox *mbox)
free(mbox);
}
}
/*-----------------------------------------------------------------------------------*/
err_t
sys_mbox_trypost(struct sys_mbox *mbox, void *msg)
{
u8_t first;
sys_sem_wait(mbox->mutex);
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_trypost: mbox %p msg %p\n",
(void *)mbox, (void *)msg));
if ((mbox->last + 1) >= (mbox->first + SYS_MBOX_SIZE))
return ERR_MEM;
mbox->msgs[mbox->last % SYS_MBOX_SIZE] = msg;
if (mbox->last == mbox->first) {
first = 1;
} else {
first = 0;
}
mbox->last++;
if (first) {
sys_sem_signal(mbox->mail);
}
sys_sem_signal(mbox->mutex);
return ERR_OK;
}
/*-----------------------------------------------------------------------------------*/
void
sys_mbox_post(struct sys_mbox *mbox, void *msg)