61 lines
805 B
C
61 lines
805 B
C
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#include <u.h>
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#include <lib9.h>
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#include <thread.h>
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enum
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{
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STACK = 2048,
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};
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void
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clockproc(void *arg)
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{
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int t;
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Channel *c;
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c = arg;
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for(t=0;; t++){
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sleep(100);
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sendul(c, t);
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}
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}
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void
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threadmain(int argc, char *argv[])
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{
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int tick, tock;
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Alt a[] = {
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{nil, &tick, CHANRCV},
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{nil, &tock, CHANRCV},
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{nil, nil, CHANEND},
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};
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fprint(2, "threadmain hi!\n");
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a[0].c = chancreate(sizeof tick, 0);
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a[1].c = chancreate(sizeof tock, 0);
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proccreate(clockproc, a[0].c, STACK);
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proccreate(clockproc, a[1].c, STACK);
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tick = 0;
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tock = 0;
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while(tick < 10 || tock < 10){
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switch(alt(a)){
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case 0:
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fprint(2, "tick %d\n", tick);
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break;
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case 1:
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fprint(2, "tock %d\n", tock);
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break;
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default:
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sysfatal("can't happen");
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}
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}
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print("PASS\n");
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threadexitsall("PASS");
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}
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