precise some pipe message comments

svn path=/trunk/; revision=16660

1 files changed, 6 insertions, 2 deletions

diff --git a/capture_sync.c b/capture_sync.c
index 86d9b96f7e..37189c46f4 100644
--- a/capture_sync.c
+++ b/capture_sync.c
@@ -117,13 +117,17 @@ static void sync_pipe_wait_for_child(capture_options *capture_opts);
 #define SP_DECISIZE 20
 
 /*
- * Indications sent out on the sync pipe.
+ * Indications sent out on the sync pipe (from child to parent).
  */
 #define SP_FILE         'F'     /* the name of the recently opened file */
 #define SP_ERROR_MSG    'E'     /* error message */
 #define SP_PACKET_COUNT 'P'     /* count of packets captured since last message */
 #define SP_DROPS        'D'     /* count of packets dropped in capture */
-#define SP_QUIT         'Q'     /* capture quit message (from parent to child) */
+/*
+ * Win32 only: Indications sent out on the signal pipe (from parent to child)
+ * (UNIX-like sends signals for this)
+ */
+#define SP_QUIT         'Q'     /* "gracefully" capture quit message (SIGUSR1) */
 
 
 /* write a message to the recipient pipe in the standard format