Expose a new process_signal(uintptr_t), not signal_callback()

This is a tweak to the bug2917 fix.  Basically, if we want to simulate
a signal arriving in the controller, we shouldn't have to pretend that
we're Libevent, or depend on how Tor sets up its Libevent callbacks.

1 files changed, 9 insertions, 1 deletions

diff --git a/src/or/main.c b/src/or/main.c
index 5e4d88cf96..169956849c 100644
--- a/src/or/main.c
+++ b/src/or/main.c
@@ -1578,12 +1578,20 @@ do_main_loop(void)
 
 /** Libevent callback: invoked when we get a signal.
  */
-void
+static void
 signal_callback(int fd, short events, void *arg)
 {
   uintptr_t sig = (uintptr_t)arg;
   (void)fd;
   (void)events;
+
+  process_signal(sig);
+}
+
+/** Do the work of acting on a signal received in <b>sig</b> */
+void
+process_signal(uintptr_t sig)
+{
   switch (sig)
     {
     case SIGTERM: