mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
951 B
46 lines
951 B
5 years ago
|
/*
|
||
|
|
* This program handles SIGINT and forwards it to another process.
|
||
|
|
* It is intended to be run as PID 1.
|
||
|
|
*
|
||
|
|
* Docker starts processes with "docker run" as PID 1.
|
||
|
|
* On Linux, the default signal handler for PID 1 ignores any signals.
|
||
|
|
* Therefore Ctrl-C aka SIGINT is ignored per default.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <signal.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/wait.h>
|
||
|
|
|
||
|
|
int pid = 0;
|
||
|
|
|
||
|
|
void
|
||
|
|
handle_sigint (int signum)
|
||
|
|
{
|
||
|
|
if(pid)
|
||
|
|
kill(pid, SIGINT);
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char *argv[]){
|
||
|
|
struct sigaction new_action;
|
||
|
|
int status = -1;
|
||
|
|
|
||
|
|
/* Set up the structure to specify the new action. */
|
||
|
|
new_action.sa_handler = handle_sigint;
|
||
|
|
sigemptyset (&new_action.sa_mask);
|
||
|
|
new_action.sa_flags = 0;
|
||
|
|
|
||
|
|
sigaction (SIGINT, &new_action, (void*)0);
|
||
|
|
|
||
|
|
pid = fork();
|
||
|
|
if(pid){
|
||
|
|
wait(&status);
|
||
|
|
return WEXITSTATUS(status);
|
||
|
|
}else{
|
||
|
|
status = execvp(argv[1], &argv[1]);
|
||
|
|
perror("exec");
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
}
|