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Lines 250-264
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void |
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void |
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kern_thread_cputime(struct thread *targettd, struct timespec *ats) |
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kern_thread_cputime(struct thread *targettd, struct timespec *ats) |
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{ |
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{ |
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uint64_t runtime, curtime, switchtime; |
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uint64_t runtime, curtime, switchtime, switchtime_check; |
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if (targettd == NULL) { /* current thread */ |
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if (targettd == NULL) { /* current thread */ |
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critical_enter(); |
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do { |
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switchtime = PCPU_GET(switchtime); |
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critical_enter(); |
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curtime = cpu_ticks(); |
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switchtime = PCPU_GET(switchtime); |
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runtime = curthread->td_runtime; |
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curtime = cpu_ticks(); |
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critical_exit(); |
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runtime = curthread->td_runtime; |
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switchtime_check = PCPU_GET(switchtime); |
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critical_exit(); |
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} while (switchtime != switchtime_check); |
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runtime += curtime - switchtime; |
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runtime += curtime - switchtime; |
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} else { |
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} else { |
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PROC_LOCK_ASSERT(targettd->td_proc, MA_OWNED); |
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PROC_LOCK_ASSERT(targettd->td_proc, MA_OWNED); |