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#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <functional>
class Process {
public:
explicit Process(const std::string& cmdLine) {
_pid = vfork();
switch (_pid) {
case -1: // Error
throw std::runtime_error(
"Could not vfork() new process for executing remote client");
case 0: // Child
execl("/bin/sh", "sh", "-c", cmdLine.c_str(), NULL);
_exit(127);
}
}
void Join() {
// Wait for process to terminate
int pStatus;
do {
int pidReturn;
do {
pidReturn = waitpid(_pid, &pStatus, 0);
} while (pidReturn == -1 && errno == EINTR);
} while (!WIFEXITED(pStatus) && !WIFSIGNALED(pStatus));
if (WIFEXITED(pStatus)) {
const int exitStatus = WEXITSTATUS(pStatus);
onFinished(exitStatus != 0, exitStatus);
} else {
onFinished(true, 0);
}
}
private:
std::function<void(bool, int)> onFinished; // TODO
int _pid;
};
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