Method is_running

src/python/subprocess.cpp:76–90

    }

    bool SubProcess::is_running() const {
        if (pid_ <= 0)
            return false;
        int status;
        const pid_t result = waitpid(pid_, &status, WNOHANG);
        if (result == pid_) {
            if (WIFEXITED(status))
                const_cast<SubProcess*>(this)->exit_code_ = WEXITSTATUS(status);
            else if (WIFSIGNALED(status))
                const_cast<SubProcess*>(this)->exit_code_ = 128 + WTERMSIG(status);
            const_cast<SubProcess*>(this)->pid_ = -1;
            return false;
        }
        return result == 0;
    }

    void SubProcess::kill() {
        if (stdout_fd_ >= 0) {