65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux openbsd netbsd
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#include <sys/time.h>
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#include "runtime.h"
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#include "defs.h"
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extern SigTab runtime_sigtab[];
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void
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runtime_initsig(void)
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{
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int32 i;
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SigTab *t;
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// First call: basic setup.
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for(i = 0; runtime_sigtab[i].sig != -1; i++) {
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t = &runtime_sigtab[i];
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if((t->flags == 0) || (t->flags & SigDefault))
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continue;
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runtime_setsig(i, false, true);
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}
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}
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void
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runtime_sigenable(uint32 sig)
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{
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int32 i;
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SigTab *t;
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for(i = 0; runtime_sigtab[i].sig != -1; i++) {
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// ~0 means all signals.
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if(~sig == 0 || runtime_sigtab[i].sig == (int32)sig) {
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t = &runtime_sigtab[i];
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if(t->flags & SigDefault) {
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runtime_setsig(i, false, true);
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t->flags &= ~SigDefault; // make this idempotent
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}
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}
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}
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}
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void
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runtime_resetcpuprofiler(int32 hz)
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{
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struct itimerval it;
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runtime_memclr((byte*)&it, sizeof it);
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if(hz == 0) {
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runtime_setitimer(ITIMER_PROF, &it, nil);
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runtime_setprof(false);
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} else {
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it.it_interval.tv_sec = 0;
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it.it_interval.tv_usec = 1000000 / hz;
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it.it_value = it.it_interval;
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runtime_setitimer(ITIMER_PROF, &it, nil);
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runtime_setprof(true);
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}
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runtime_m()->profilehz = hz;
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}
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