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Commit e0f42b41 authored by Colin Cross's avatar Colin Cross Committed by Gerrit Code Review
Browse files

Merge "Propagate signals through makeparallel"

parents cf8afef2 49c45aec

tools/makeparallel/makeparallel.cpp

+25 −2
Original line number Diff line number Diff line
@@ -337,7 +337,29 @@ int main(int argc, char* argv[]) { 


  args.push_back(nullptr);



  pid_t pid = fork();

  static pid_t pid;



  // Set up signal handlers to forward SIGHUP, SIGINT, SIGQUIT, SIGTERM, and

  // SIGALRM to child

  struct sigaction action = {};

  action.sa_flags = SA_SIGINFO | SA_RESTART,

  action.sa_sigaction = [](int signal, siginfo_t*, void*) {

    if (pid > 0) {

      kill(pid, signal);

    }

  };



  int ret = 0;

  if (!ret) ret = sigaction(SIGHUP, &action, NULL);

  if (!ret) ret = sigaction(SIGINT, &action, NULL);

  if (!ret) ret = sigaction(SIGQUIT, &action, NULL);

  if (!ret) ret = sigaction(SIGTERM, &action, NULL);

  if (!ret) ret = sigaction(SIGALRM, &action, NULL);

  if (ret < 0) {

    error(errno, errno, "sigaction failed");

  }



  pid = fork();

  if (pid < 0) {

    error(errno, errno, "fork failed");

  } else if (pid == 0) {
@@ -361,9 +383,10 @@ int main(int argc, char* argv[]) { 
  }



  // parent



  siginfo_t status = {};

  int exit_status = 0;

  int ret = waitid(P_PID, pid, &status, WEXITED);

  ret = waitid(P_PID, pid, &status, WEXITED);

  if (ret < 0) {

    error(errno, errno, "waitpid failed");

  } else if (status.si_code == CLD_EXITED) {