common_api: output at least something every timeout (10) seconds,

otherwise PHP may not notice when the webclient is gone.
Then the process could exist 'forever' and hang Apache after it
has gone through all it threads/processes.

diff --git a/api/common_api.php b/api/common_api.php
index 3681d0a65ae121247600327b44b432149fc9cd6d..d94ef685532510f07f189cb3e836327b7e6dd4a2 100644 (file)
--- a/api/common_api.php
+++ b/api/common_api.php
@@ -56,7 +56,14 @@ function api_log_loop($sources)
        {
                $res = $rpc->eventloop();
                if (!$res)
+               {
+                       /* Output at least something every timeout (10) seconds,
+                        * otherwise PHP may not
+                        * notice when the webclient is gone.
+                        */
+                       echo "\n";
                        continue;
+               }
                send_sse($res);
        }
 }
@@ -83,7 +90,14 @@ function api_timer_loop(int $every_msec, string $method, array|null $params = nu
        {
                $res = $rpc->eventloop();
                if (!$res)
+               {
+                       /* Output at least something every timeout (10) seconds,
+                        * otherwise PHP may not
+                        * notice when the webclient is gone.
+                        */
+                       echo "\n";
                        continue;
+               }
                send_sse($res);
        }
 }