30 static bool Exited(pid_t pid) {  in Exited()  argument
32   pid_t wait_pid = waitpid(pid, &status, WNOHANG);  in Exited()
33   if (wait_pid != pid) {  in Exited()
38     fprintf(stderr, "%d died: Process exited with code %d\n", pid, WEXITSTATUS(status));  in Exited()
40     fprintf(stderr, "%d died: Process exited due to signal %d\n", pid, WTERMSIG(status));  in Exited()
42     fprintf(stderr, "%d died: Process finished for unknown reason\n", pid);  in Exited()
47 bool Quiesce(pid_t pid) {  in Quiesce()  argument
51     if (ptrace(PTRACE_GETSIGINFO, pid, 0, &si) == 0) {  in Quiesce()
58         if (ptrace(PTRACE_LISTEN, pid, 0, 0) == -1) {  in Quiesce()
70   fprintf(stderr, "%d: Did not quiesce in 10 seconds\n", pid);  in Quiesce()
74 bool Attach(pid_t pid) {  in Attach()  argument
77     if (ptrace(PTRACE_ATTACH, pid, 0, 0) == 0) {  in Attach()
87   if (Quiesce(pid)) {  in Attach()
91   if (ptrace(PTRACE_DETACH, pid, 0, 0) == -1) {  in Attach()
97 bool Detach(pid_t pid) {  in Detach()  argument
98   if (ptrace(PTRACE_DETACH, pid, 0, 0) == -1) {  in Detach()
107 bool WaitForPidState(pid_t pid, const std::function<PidRunEnum()>& state_check_func) {  in WaitForPidState()  argument
111     if (Attach(pid)) {  in WaitForPidState()
117       if (!Detach(pid)) {  in WaitForPidState()
120     } else if (Exited(pid)) {  in WaitForPidState()
126     fprintf(stderr, "Timed out waiting for pid %d to be ready\n", pid);  in WaitForPidState()
131 bool WaitForPidStateAfterAttach(pid_t pid, const std::function<PidRunEnum()>& state_check_func) {  in WaitForPidStateAfterAttach()  argument
139     if (!Detach(pid)) {  in WaitForPidStateAfterAttach()
144            Attach(pid));  in WaitForPidStateAfterAttach()
146     fprintf(stderr, "Timed out waiting for pid %d to be ready\n", pid);  in WaitForPidStateAfterAttach()