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Viewing changes to lib9/sleep.c

  • Committer: Bazaar Package Importer
  • Author(s): Daniel Baumann
  • Date: 2006-01-25 15:33:00 UTC
  • Revision ID: james.westby@ubuntu.com-20060125153300-6hh4p9wx8iqqply5
Tags: upstream-2
Import upstream version 2

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lib9/sleep.c
 
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#include <u.h>
 
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#define NOPLAN9DEFINES
 
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#include <sys/time.h>
 
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#include <sched.h>
 
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#include <libc.h>
 
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int
 
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p9sleep(long milli)
 
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{
 
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        struct timeval tv;
 
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        if(milli == 0){
 
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                sched_yield();
 
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                return 0;
 
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        }
 
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        tv.tv_sec = milli/1000;
 
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        tv.tv_usec = (milli%1000)*1000;
 
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        return select(0, 0, 0, 0, &tv);
 
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}
 
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long
 
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p9alarm(ulong milli)
 
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{
 
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        struct itimerval itv;
 
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        struct itimerval oitv;
 
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        itv.it_interval.tv_sec = 0;
 
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        itv.it_interval.tv_usec = 0;
 
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        itv.it_value.tv_sec = milli/1000;
 
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        itv.it_value.tv_usec = (milli%1000)*1000;
 
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        if(setitimer(ITIMER_REAL, &itv, &oitv) < 0)
 
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                return -1;
 
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        return oitv.it_value.tv_sec*1000+oitv.it_value.tv_usec/1000;
 
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}