在Ubuntu中無法捕獲SIGPIPE信號

Question

我遇到了SIGPIPE崩潰問題，我想記錄下來並嘗試存在。
但是我無法通過跟隨代碼來捕捉SIGPIPE。
我嘗試使用“ kill -s signal process”來驗證我的代碼，它可以與信號SIGINT，SIGSTOP，SIGSEGV和SIGALRM一起使用。
但是在SIGPIPE上失敗了。
如果我想念這里，請告訴我。

void handle_pipe(int sig)
{
    printf("SIG_PIPE happen, error code is %d", sig);
    exit(0);    
}   

int main(int argc, char **argv)
{
    struct sigaction action;
    sigemptyset(&action.sa_mask);
    action.sa_handler = handle_pipe;
    action.sa_flags = 0;
    //not work
    sigaction(SIGPIPE, &action, NULL);   //Not work with kill -13 process_id
    //works well
    sigaction(SIGINT, &action, NULL);    //work with kill -2 process_id
    sigaction(SIGSEGV, &action, NULL);   //work with kill -11 process_id
    sigaction(SIGALRM, &action, NULL);   //work with kill -14 process_id
    sigaction(SIGSTOP, &action, NULL);   //work with kill -17 process_id

    fooServer * pfooServer = new fooServer();
    while(1)
    {
        pfooServer->DoEvents();
    }
    delete pfooServer;
}

我的環境是Ubuntu 12.04 LTS

Answer 1

這個完整的代碼示例確實使用kill -13。 我在這里沒有ubuntu 12.04 LTS進行測試，但在RHEL 6.5上還可以。 嘗試這個。 如果它按預期工作，則您的“ fooServer”中必須有某些東西正在改變SIGPIPE行為

#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>



void handle_pipe(int sig)
{
    printf("SIG_PIPE happen, error code is %d", sig);
    exit(0);    
}   

int main(int argc, char **argv)
{
    struct sigaction action;
    sigemptyset(&action.sa_mask);
    action.sa_handler = handle_pipe;
    action.sa_flags = 0;
    //not work
    sigaction(SIGPIPE, &action, NULL);   //Not work with kill -13 process_id
    //works well
    sigaction(SIGINT, &action, NULL);    //work with kill -2 process_id
    sigaction(SIGSEGV, &action, NULL);   //work with kill -11 process_id
    sigaction(SIGALRM, &action, NULL);   //work with kill -14 process_id
    sigaction(SIGSTOP, &action, NULL);   //work with kill -17 process_id

    while(1)
    {
        sleep(1);
    }
}