sm64/lib/src/osSendMesg.c

29 lines
689 B
C

#include "libultra_internal.h"
s32 osSendMesg(OSMesgQueue *mq, OSMesg msg, s32 flag) {
register u32 int_disabled;
register s32 index;
int_disabled = __osDisableInt();
while (MQ_IS_FULL(mq)) {
if (flag == OS_MESG_BLOCK) {
__osRunningThread->state = 8;
__osEnqueueAndYield(&mq->fullqueue);
} else {
__osRestoreInt(int_disabled);
return -1;
}
}
index = (mq->first + mq->validCount) % mq->msgCount;
mq->msg[index] = msg;
mq->validCount++;
if (mq->mtqueue->next != NULL) {
osStartThread(__osPopThread(&mq->mtqueue));
}
__osRestoreInt(int_disabled);
return 0;
}