void sys_mbox_post(sys_mbox_t *mbox, void *msg)
{
arch_message *MsgPkt;
MsgPkt=alloc_msg();
MsgPkt->sys_msg = msg;
SendMbx(*mbox, (iop_message_t *)MsgPkt);
}
void sys_mbox_post(sys_mbox_t mbid, void *sys_msg)
{
arch_message *msg;
//This function should only be invoked by ps2ip_input. It'll be invoked from an interrupt-context and the pMBox is non-full.
// FIXME: Not sure if this is the best thing to do, will this lock up the only thread which will free up a message??
while((msg = alloc_msg()) == NULL) { DelayThread(100); }
msg->sys_msg = sys_msg;
SendMbx(mbid, (iop_message_t *) msg);
}
err_t sys_mbox_trypost(sys_mbox_t *mbox, void *msg){
arch_message *MsgPkt;
err_t result;
if((MsgPkt = try_alloc_msg()) != NULL){
MsgPkt->sys_msg = msg;
SendMbx(*mbox, (iop_message_t *)MsgPkt);
result=ERR_OK;
}
else result=ERR_MEM;
return result;
}
void basicPollingTest() {
static const int msgCount = 3;
int i = 0;
MSG msg[msgCount];
iop_mbx_t mbxInfo = {};
mbxInfo.option = 0;
mbxInfo.attr = MBA_THFIFO | MBA_MSFIFO;
s32 mbxId = CreateMbx(&mbxInfo);
{
s32 result = PollMbx(NULL, mbxId);
printf(" polling from empty box: %d\n", result);
}
for (i = 0; i < msgCount; i++) {
memset(&msg[i], 0, sizeof(MSG));
msg[i].header.priority = msgCount - i;
msg[i].payload = i + 1;
SendMbx(mbxId, &msg[i]);
}
printf(" box contents before polling: ");
printMbx(mbxId);
{
MSG* msg = NULL;
s32 result = PollMbx((void**)&msg, mbxId);
printf(" polling from non-empty box: %d, message: %d\n",
result, msg->payload);
}
printf(" box contents after polling: ");
printMbx(mbxId);
DeleteMbx(mbxId);
}