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Current Path: /opt/golang/1.22.0/src/runtime/testdata/testprogcgo

opt / golang / 1.22.0 / src / runtime / testdata / testprogcgo /

📁 ..
📄 aprof.go(1.14 KB)
📄 aprof_c.c(217 B)
📄 bigstack1_windows.c(379 B)
📄 bigstack_windows.c(1.2 KB)
📄 bigstack_windows.go(586 B)
📄 bindm.c(692 B)
📄 bindm.go(1.2 KB)
📄 callback.go(1.86 KB)
📄 catchpanic.go(993 B)
📄 cgo.go(1.82 KB)
📄 cgonocallback.c(236 B)
📄 cgonocallback.go(629 B)
📄 cgonoescape.go(1.84 KB)
📄 crash.go(743 B)
📄 deadlock.go(509 B)
📄 destructor.c(459 B)
📄 destructor.go(442 B)
📄 dll_windows.go(459 B)
📄 dropm.go(1.05 KB)
📄 dropm_stub.go(336 B)
📄 eintr.go(5.17 KB)
📄 exec.go(2.1 KB)
📄 gprof.go(868 B)
📄 gprof_c.c(700 B)
📄 issue29707.go(1.15 KB)
📄 lockosthread.c(301 B)
📄 lockosthread.go(2.52 KB)
📄 main.go(651 B)
📄 needmdeadlock.go(1.83 KB)
📄 numgoroutine.go(1.91 KB)
📄 panic.c(239 B)
📄 panic.go(312 B)
📄 pprof.go(1.67 KB)
📄 pprof_callback.go(1.82 KB)
📄 raceprof.go(1.67 KB)
📄 racesig.go(1.67 KB)
📄 segv.go(525 B)
📄 segv_linux.go(546 B)
📄 sigfwd.go(1.58 KB)
📄 sigpanic.go(484 B)
📄 sigstack.go(2.09 KB)
📄 sigthrow.go(312 B)
📄 stack_windows.go(1.1 KB)
📄 stackswitch.c(3.88 KB)
📄 stackswitch.go(1.07 KB)
📄 threadpanic.go(428 B)
📄 threadpanic_unix.c(435 B)
📄 threadpanic_windows.c(435 B)
📄 threadpprof.go(2.54 KB)
📄 threadprof.go(2.41 KB)
📄 trace.go(1.15 KB)
📄 trace_unix.c(688 B)
📄 trace_windows.c(777 B)
📄 traceback.go(949 B)
📄 traceback_c.c(1.21 KB)
📄 tracebackctxt.go(2.85 KB)
📄 tracebackctxt_c.c(2.33 KB)
📁 windows

Editing: racesig.go

// Copyright 2016 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.

//go:build unix
// +build unix

package main

// Test that an external C thread that is calling malloc can be hit
// with SIGCHLD signals. This used to fail when built with the race
// detector, because in that case the signal handler would indirectly
// call the C malloc function.

/*
#include <errno.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <sched.h>
#include <unistd.h>

#define ALLOCERS 100
#define SIGNALERS 10

static void* signalThread(void* p) {
	pthread_t* pt = (pthread_t*)(p);
	int i, j;

for (i = 0; i < 100; i++) {
		for (j = 0; j < ALLOCERS; j++) {
			if (pthread_kill(pt[j], SIGCHLD) < 0) {
				return NULL;
			}
		}
		usleep(1);
	}
	return NULL;
}

#define CALLS 100

static void* mallocThread(void* p) {
	int i;
	void *a[CALLS];

for (i = 0; i < ALLOCERS; i++) {
		sched_yield();
	}
	for (i = 0; i < CALLS; i++) {
		a[i] = malloc(i);
	}
	for (i = 0; i < CALLS; i++) {
		free(a[i]);
	}
	return NULL;
}

void runRaceSignalThread() {
	int i;
	pthread_t m[ALLOCERS];
	pthread_t s[SIGNALERS];

for (i = 0; i < ALLOCERS; i++) {
		pthread_create(&m[i], NULL, mallocThread, NULL);
	}
	for (i = 0; i < SIGNALERS; i++) {
		pthread_create(&s[i], NULL, signalThread, &m[0]);
	}
	for (i = 0; i < SIGNALERS; i++) {
		pthread_join(s[i], NULL);
	}
	for (i = 0; i < ALLOCERS; i++) {
		pthread_join(m[i], NULL);
	}
}
*/
import "C"

import (
	"fmt"
)

func init() {
	register("CgoRaceSignal", CgoRaceSignal)
}

func CgoRaceSignal() {
	C.runRaceSignalThread()
	fmt.Println("OK")
}

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Editing: racesig.go

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