Improve general code quality.

- Add a tor_process_get_pid() function that returns the PID of a
  process_handle_t.
- Conform to make check-spaces.
- Add some more documentation.
- Improve some log messages.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/common/util.h b/src/common/util.h
index b9f3a5bc5..9d3472ae8 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -417,6 +417,8 @@ ssize_t tor_read_all_from_process_stderr(
     const process_handle_t *process_handle, char *buf, size_t count);
 char *tor_join_win_cmdline(const char *argv[]);
 
+int tor_process_get_pid(process_handle_t *process_handle);
+
 int tor_terminate_process(process_handle_t *process_handle);
 void tor_process_destroy(process_handle_t *process_handle,
                          int also_terminate_process);