mirror of
https://github.com/HarbourMasters/Shipwright.git
synced 2024-08-13 17:03:47 -04:00
30 lines
639 B
C
30 lines
639 B
C
|
#include "global.h"
|
||
|
|
||
|
s32 osRecvMesg(OSMesgQueue* mq, OSMesg* msg, s32 flag) {
|
||
|
register u32 prevInt = __osDisableInt();
|
||
|
|
||
|
while (mq->validCount == 0) {
|
||
|
if (flag == OS_MESG_NOBLOCK) {
|
||
|
__osRestoreInt(prevInt);
|
||
|
return -1;
|
||
|
}
|
||
|
__osRunningThread->state = 8;
|
||
|
__osEnqueueAndYield((OSThread**)mq);
|
||
|
}
|
||
|
|
||
|
if (msg != NULL) {
|
||
|
*msg = mq->msg[mq->first];
|
||
|
}
|
||
|
|
||
|
mq->first = (mq->first + 1) % mq->msgCount;
|
||
|
mq->validCount--;
|
||
|
|
||
|
if (mq->fullqueue->next != NULL) {
|
||
|
osStartThread(__osPopThread(&mq->fullqueue));
|
||
|
}
|
||
|
|
||
|
__osRestoreInt(prevInt);
|
||
|
|
||
|
return 0;
|
||
|
}
|