More --timeout improvements, especially for the receiving side:

- The receiver now sends keep-alive messages to the generator
  when it is actively doing work and hasn't sent anything
  recently.  This ensures that the generator won't timeout
  if the receiver is working hard.
- The perform_io() code has improved keep-alive participation.
- Allow the sender to send some keep-alive messages, which
  ensures that if it is in a lull, it can probe the socket.

1 files changed, 0 insertions, 5 deletions

diff --git a/main.c b/main.c
index 59550013..4f3729e8 100644
--- a/main.c
+++ b/main.c
@@ -73,7 +73,6 @@ extern int send_msgs_to_gen;
 extern pid_t cleanup_child_pid;
 extern size_t bwlimit_writemax;
 extern unsigned int module_dirlen;
-extern BOOL we_send_keepalive_messages;
 extern BOOL flist_receiving_enabled;
 extern BOOL shutting_down;
 extern struct stats stats;
@@ -765,8 +764,6 @@ static void do_server_sender(int f_in, int f_out, int argc, char *argv[])
 	struct file_list *flist;
 	char *dir = argv[0];
 
-	we_send_keepalive_messages = io_timeout != 0 && protocol_version < 31;
-
 	if (DEBUG_GTE(SEND, 1)) {
 		rprintf(FINFO, "server_sender starting pid=%ld\n",
 			(long)getpid());
@@ -907,7 +904,6 @@ static int do_recv(int f_in, int f_out, char *local_name)
 	}
 
 	am_generator = 1;
-	we_send_keepalive_messages = io_timeout != 0;
 	flist_receiving_enabled = True;
 
 	io_end_multiplex_in(MPLX_SWITCHING);
@@ -1112,7 +1108,6 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
 
 	if (am_sender) {
 		keep_dirlinks = 0; /* Must be disabled on the sender. */
-		we_send_keepalive_messages = io_timeout != 0 && protocol_version < 31;
 
 		if (always_checksum
 		 && (log_format_has(stdout_format, 'C')