From: Christian Heller <c.heller@plomlompom.de>
Date: Fri, 14 Nov 2014 12:57:26 +0000 (+0100)
Subject: Client: ping_pong_test() + try_growing_queue() = test_and_poll_server()
X-Git-Tag: tce~596
X-Git-Url: https://plomlompom.com/repos/%22https:/validator.w3.org/edit?a=commitdiff_plain;h=e2788e0bb81b5b9bfe7d3662a3c55883100558a1;p=plomrogue

Client: ping_pong_test() + try_growing_queue() = test_and_poll_server()
---

diff --git a/TODO b/TODO
index f2f1537..a5eb094 100644
--- a/TODO
+++ b/TODO
@@ -13,8 +13,6 @@ CLIENT:
 
 - re-work unnecessary complex command / keybinding / server message mapping
 
-- unify ping_pong_test() and try_growing_queue()
-
 BUILD PROCESS:
 
 - erlehmann's redo scripts are not OSX-compliant, see:
diff --git a/src/client/io.c b/src/client/io.c
index 69a0865..35e42e7 100644
--- a/src/client/io.c
+++ b/src/client/io.c
@@ -75,15 +75,10 @@ static FILE * changed_worldstate_file(char * path);
  */
 static uint8_t read_worldstate();
 
-/* If "last_server_answer_time" is too old, send a PING to the server; or, if a
- * previous PING has not sparked any answer after a while, abort the client.
+/* Poll server for queue input. If no new input, send ping, or, if ping already
+ * sent but unanswered for some time, abort.
  */
-static void ping_pong_test(time_t last_server_answer_time);
-
-/* Read server's out file into queue, update "last_server_answer_time" if new
- * stuff is found there.
- */
-static void try_growing_queue(time_t * last_server_answer_time);
+static void test_and_poll_server();
 
 /* Read server out file for messages, act on them (i.e. derive log messages). */
 static uint8_t read_outfile();
@@ -209,9 +204,15 @@ static uint8_t read_worldstate()
 
 
 
-static void ping_pong_test(time_t last_server_answer_time)
+static void test_and_poll_server()
 {
+    static time_t last_server_answer_time = 0;
     static uint8_t ping_sent = 0;
+    if (read_file_into_queue(world.file_server_out, &world.queue))
+    {
+        last_server_answer_time = time(0);
+        return;
+    }
     time_t now = time(0);
     if (ping_sent && last_server_answer_time > now - 3)  /* Re-set if last    */
     {                                                    /* ping was answered */
@@ -229,16 +230,6 @@ static void ping_pong_test(time_t last_server_answer_time)
 
 
 
-static void try_growing_queue(time_t * last_server_answer_time)
-{
-    if (read_file_into_queue(world.file_server_out, &world.queue))
-    {
-        * last_server_answer_time = time(0);
-    }
-}
-
-
-
 static uint8_t read_outfile()
 {
     uint8_t ret = 0;
@@ -284,15 +275,13 @@ extern void send(char * msg)
 
 extern char * io_loop()
 {
-    world.halfdelay = 1;         /* Ensures read_worldstate() is only called  */
-    halfdelay(world.halfdelay);  /* 10 times a second during user inactivity. */
+    world.halfdelay = 1;             /* Ensure server is polled only 10 times */
+    halfdelay(world.halfdelay);      /* a second during user inactivity.      */
     uint8_t change_in_client = 0;
     uint16_t last_focused_turn = world.turn;
-    time_t last_server_answer_time = time(0);
     while (1)
     {
-        try_growing_queue(&last_server_answer_time);
-        ping_pong_test(last_server_answer_time);
+        test_and_poll_server();
         if (world.winch)
         {
             reset_windows_on_winch();