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Merge pull request #1032 from matteodelabre/terminate-custom-on-exit

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Terminate custom module scripts on exit
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Alex 2021-02-23 09:40:05 +01:00 committed by GitHub
commit cb1c7ea12c
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1 changed files with 19 additions and 0 deletions
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19
include/util/command.hpp
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@ -5,6 +5,13 @@
#include <sys/wait.h>
#include <unistd.h>
#ifdef __linux__
#include <sys/prctl.h>
#endif
#ifdef __FreeBSD__
#include <sys/procctl.h>
#endif
#include <array>
extern std::mutex reap_mtx;
@ -77,6 +84,18 @@ inline FILE* open(const std::string& cmd, int& pid) {
// Reset sigmask
err = pthread_sigmask(SIG_UNBLOCK, &mask, nullptr);
if (err != 0) spdlog::error("pthread_sigmask in open failed: {}", strerror(err));
// Kill child if Waybar exits
int deathsig = SIGTERM;
#ifdef __linux__
if (prctl(PR_SET_PDEATHSIG, deathsig) != 0) {
spdlog::error("prctl(PR_SET_PDEATHSIG) in open failed: {}", strerror(errno));
}
#endif
#ifdef __FreeBSD__
if (procctl(P_PID, 0, PROC_PDEATHSIG_CTL, reinterpret_cast<void*>(&deathsig)) == -1) {
spdlog::error("procctl(PROC_PDEATHSIG_CTL) in open failed: {}", strerror(errno));
}
#endif
::close(fd[0]);
dup2(fd[1], 1);
setpgid(child_pid, child_pid);