| Server IP : 88.223.91.20 / Your IP : 216.73.217.12 Web Server : LiteSpeed System : Linux id-dci-web1986.main-hosting.eu 5.14.0-611.26.1.el9_7.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Jan 29 05:24:47 EST 2026 x86_64 User : u686484674 ( 686484674) PHP Version : 8.0.30 Disable Function : system, exec, shell_exec, passthru, mysql_list_dbs, ini_alter, dl, symlink, link, chgrp, leak, popen, apache_child_terminate, virtual, mb_send_mail MySQL : OFF | cURL : ON | WGET : ON | Perl : OFF | Python : OFF | Sudo : OFF | Pkexec : OFF Directory : /proc/self/root/proc/self/root/opt/golang/1.22.0/src/cmd/cgo/internal/testcshared/testdata/ |
Upload File : |
// Copyright 2015 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.
// Test that a signal handler works in non-Go code when using
// os/signal.Notify.
// This is a lot like ../testcarchive/main3.c.
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sched.h>
#include <dlfcn.h>
static void die(const char* msg) {
perror(msg);
exit(EXIT_FAILURE);
}
static volatile sig_atomic_t sigioSeen;
static void ioHandler(int signo, siginfo_t* info, void* ctxt) {
sigioSeen = 1;
}
int main(int argc, char** argv) {
int verbose;
struct sigaction sa;
void* handle;
void (*catchSIGIO)(void);
void (*resetSIGIO)(void);
void (*awaitSIGIO)();
bool (*sawSIGIO)();
int i;
struct timespec ts;
verbose = argc > 2;
setvbuf(stdout, NULL, _IONBF, 0);
if (verbose) {
fprintf(stderr, "calling sigaction\n");
}
memset(&sa, 0, sizeof sa);
sa.sa_sigaction = ioHandler;
if (sigemptyset(&sa.sa_mask) < 0) {
die("sigemptyset");
}
sa.sa_flags = SA_SIGINFO;
if (sigaction(SIGIO, &sa, NULL) < 0) {
die("sigaction");
}
if (verbose) {
fprintf(stderr, "calling dlopen\n");
}
handle = dlopen(argv[1], RTLD_NOW | RTLD_GLOBAL);
if (handle == NULL) {
fprintf(stderr, "%s\n", dlerror());
exit(EXIT_FAILURE);
}
// At this point there should not be a Go signal handler
// installed for SIGIO.
if (verbose) {
fprintf(stderr, "raising SIGIO\n");
}
if (raise(SIGIO) < 0) {
die("raise");
}
if (verbose) {
fprintf(stderr, "waiting for sigioSeen\n");
}
// Wait until the signal has been delivered.
i = 0;
while (!sigioSeen) {
ts.tv_sec = 0;
ts.tv_nsec = 1000000;
nanosleep(&ts, NULL);
i++;
if (i > 5000) {
fprintf(stderr, "looping too long waiting for signal\n");
exit(EXIT_FAILURE);
}
}
sigioSeen = 0;
// Tell the Go code to catch SIGIO.
if (verbose) {
fprintf(stderr, "calling dlsym\n");
}
catchSIGIO = (void(*)(void))dlsym(handle, "CatchSIGIO");
if (catchSIGIO == NULL) {
fprintf(stderr, "%s\n", dlerror());
exit(EXIT_FAILURE);
}
if (verbose) {
fprintf(stderr, "calling CatchSIGIO\n");
}
catchSIGIO();
if (verbose) {
fprintf(stderr, "raising SIGIO\n");
}
if (raise(SIGIO) < 0) {
die("raise");
}
if (verbose) {
fprintf(stderr, "calling dlsym\n");
}
// Check that the Go code saw SIGIO.
awaitSIGIO = (void (*)(void))dlsym(handle, "AwaitSIGIO");
if (awaitSIGIO == NULL) {
fprintf(stderr, "%s\n", dlerror());
exit(EXIT_FAILURE);
}
if (verbose) {
fprintf(stderr, "calling AwaitSIGIO\n");
}
awaitSIGIO();
if (sigioSeen != 0) {
fprintf(stderr, "C handler saw SIGIO when only Go handler should have\n");
exit(EXIT_FAILURE);
}
// Tell the Go code to stop catching SIGIO.
if (verbose) {
fprintf(stderr, "calling dlsym\n");
}
resetSIGIO = (void (*)(void))dlsym(handle, "ResetSIGIO");
if (resetSIGIO == NULL) {
fprintf(stderr, "%s\n", dlerror());
exit(EXIT_FAILURE);
}
if (verbose) {
fprintf(stderr, "calling ResetSIGIO\n");
}
resetSIGIO();
sawSIGIO = (bool (*)(void))dlsym(handle, "SawSIGIO");
if (sawSIGIO == NULL) {
fprintf(stderr, "%s\n", dlerror());
exit(EXIT_FAILURE);
}
if (verbose) {
fprintf(stderr, "raising SIGIO\n");
}
if (raise(SIGIO) < 0) {
die("raise");
}
if (verbose) {
fprintf(stderr, "calling SawSIGIO\n");
}
if (sawSIGIO()) {
fprintf(stderr, "Go handler saw SIGIO after Reset\n");
exit(EXIT_FAILURE);
}
if (verbose) {
fprintf(stderr, "waiting for sigioSeen\n");
}
// Wait until the signal has been delivered.
i = 0;
while (!sigioSeen) {
ts.tv_sec = 0;
ts.tv_nsec = 1000000;
nanosleep(&ts, NULL);
i++;
if (i > 5000) {
fprintf(stderr, "looping too long waiting for signal\n");
exit(EXIT_FAILURE);
}
}
printf("PASS\n");
return 0;
}