33 lines
703 B
C
33 lines
703 B
C
#include <ultra64.h>
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#include "osint.h"
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s32 osRecvMesg(OSMesgQueue *mq, OSMesg *msg, s32 flags)
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{
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register u32 saveMask;
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saveMask = __osDisableInt();
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while (MQ_IS_EMPTY(mq))
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{
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if (flags == OS_MESG_NOBLOCK)
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{
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__osRestoreInt(saveMask);
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return -1;
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}
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__osRunningThread->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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{
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*msg = mq->msg[mq->first];
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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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{
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osStartThread(__osPopThread(&mq->fullqueue));
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}
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__osRestoreInt(saveMask);
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return 0;
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}
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