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Merge pull request #231 from CcydtN/main

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Fix zombie process problem
This commit is contained in:
vaxerski 2022-06-17 17:53:47 +01:00 committed by GitHub
commit 837d4af8f6
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 77 additions and 4 deletions
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40
src/config/ConfigManager.cpp
View file

@ -170,11 +170,47 @@ void CConfigManager::handleRawExec(const std::string& command, const std::string
Debug::log(LOG, "Config executing %s", toExec.c_str());
if (fork() == 0) {
execl("/bin/sh", "/bin/sh", "-c", toExec.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]);
write(socket[1], &grandchild, sizeof(grandchild));
close(socket[1]);
// exit child
_exit(0);
}
// run in parent
close(socket[1]);
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 CConfigManager::handleMonitor(const std::string& command, const std::string& args) {

41
src/managers/KeybindManager.cpp
View file

@ -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]);
write(socket[1], &grandchild, sizeof(grandchild));
close(socket[1]);
// exit child
_exit(0);
}
// run in parent
close(socket[1]);
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) {