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Fix generating zombie process

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This commit is contained in:
CcydtN
2022-06-16 01:06:51 +08:00
parent 36ea12b315
commit 5fa61e5a54
2 changed files with 78 additions and 5 deletions
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41
src/managers/KeybindManager.cpp
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@@ -141,11 +141,48 @@ void CKeybindManager::spawn(std::string args) {
args = "WAYLAND_DISPLAY=" + std::string(g_pCompositor->m_szWLDisplaySocket) + " " + args;
Debug::log(LOG, "Executing %s", args.c_str());
if (fork() == 0) {
execl("/bin/sh", "/bin/sh", "-c", args.c_str(), nullptr);
int socket[2];
if (pipe(socket) != 0) {
Debug::log(LOG, "Unable to create pipe for fork");
}
pid_t child ,grandchild;
child = fork();
if (child<0){
close(socket[0]);
close(socket[1]);
Debug::log(LOG, "Fail to create the first fork");
return;
}
if (child == 0){
// run in child
grandchild = fork();
if (grandchild==0){
// run in grandchild
close(socket[0]);
close(socket[1]);
execl("/bin/sh", "/bin/sh", "-c", args.c_str(), nullptr);
// exit grandchild
_exit(0);
}
close(socket[0]);
(void) write(socket[1], &grandchild, sizeof(grandchild));
close(socket[1]);
// exit child
_exit(0);
}
// run in parent
close(socket[1]);
(void) read(socket[0], &grandchild,sizeof(grandchild));
close(socket[0]);
// clear child and leave child to init
waitpid(child, NULL, 0);
if (child<0){
Debug::log(LOG, "Fail to create the second fork");
return;
}
Debug::log(LOG, "Process Created with pid %d",grandchild);
}
void CKeybindManager::killActive(std::string args) {