32 lines
726 B
C
32 lines
726 B
C
#include "libultra_internal.h"
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s32 osRecvMesg(OSMesgQueue *mq, OSMesg *msg, s32 flag) {
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register u32 int_disabled;
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register OSThread *thread;
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int_disabled = __osDisableInt();
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while (!mq->validCount) {
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if (!flag) {
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__osRestoreInt(int_disabled);
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return -1;
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}
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D_803348A0->state = OS_STATE_WAITING;
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__osEnqueueAndYield(&mq->mtqueue);
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}
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if (msg != NULL) {
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*msg = *(mq->first + mq->msg);
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}
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mq->first = (mq->first + 1) % mq->msgCount;
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mq->validCount--;
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if (mq->fullqueue->next != NULL) {
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thread = __osPopThread(&mq->fullqueue);
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osStartThread(thread);
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}
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__osRestoreInt(int_disabled);
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return 0;
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}
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