sm64coopdx/lib/src/osJamMesg.c
2020-04-03 14:57:26 -04:00

24 lines
695 B
C

#include "libultra_internal.h"
s32 osJamMesg(OSMesgQueue *mq, OSMesg msg, s32 flag) {
register s32 int_disabled;
int_disabled = __osDisableInt();
while (mq->validCount >= mq->msgCount) {
if (flag == OS_MESG_BLOCK) {
D_803348A0->state = OS_STATE_WAITING;
__osEnqueueAndYield(&mq->fullqueue);
} else {
__osRestoreInt(int_disabled);
return -1;
}
}
mq->first = (mq->first + mq->msgCount - 1) % mq->msgCount;
mq->msg[mq->first] = msg;
mq->validCount++;
if (mq->mtqueue->next != NULL) {
osStartThread(__osPopThread(&mq->mtqueue));
}
__osRestoreInt(int_disabled);
return 0;
}