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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin freebsd linux openbsd netbsd
#include "runtime.h"
#include "defs_GOOS_GOARCH.h"
#include "os_GOOS.h"
extern SigTab runtime·sigtab[];
void
runtime·initsig(void)
{
int32 i;
SigTab *t;
// First call: basic setup.
for(i = 0; i<NSIG; i++) {
t = &runtime·sigtab[i];
if((t->flags == 0) || (t->flags & SigDefault))
continue;
runtime·setsig(i, runtime·sighandler, true);
}
}
void
runtime·sigenable(uint32 sig)
{
int32 i;
SigTab *t;
for(i = 0; i<NSIG; i++) {
// ~0 means all signals.
if(~sig == 0 || i == sig) {
t = &runtime·sigtab[i];
if(t->flags & SigDefault) {
runtime·setsig(i, runtime·sighandler, true);
t->flags &= ~SigDefault; // make this idempotent
}
}
}
}
void
runtime·resetcpuprofiler(int32 hz)
{
Itimerval it;
runtime·memclr((byte*)&it, sizeof it);
if(hz == 0) {
runtime·setitimer(ITIMER_PROF, &it, nil);
runtime·setprof(false);
} else {
it.it_interval.tv_sec = 0;
it.it_interval.tv_usec = 1000000 / hz;
it.it_value = it.it_interval;
runtime·setitimer(ITIMER_PROF, &it, nil);
runtime·setprof(true);
}
m->profilehz = hz;
}
void
os·sigpipe(void)
{
runtime·setsig(SIGPIPE, SIG_DFL, false);
runtime·raisesigpipe();
}
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