comment changes only: improve description/commentary of spawn
control
git-svn-id: https://svn.apache.org/repos/asf/httpd/mod_fcgid/trunk@1037477 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/modules/fcgid/fcgid_spawn_ctl.c b/modules/fcgid/fcgid_spawn_ctl.c
index df7f11b..dc8d298 100644
--- a/modules/fcgid/fcgid_spawn_ctl.c
+++ b/modules/fcgid/fcgid_spawn_ctl.c
@@ -80,7 +80,7 @@
current_node->process_counter--;
}
- /* Decrease the score base on the time passing */
+ /* Decrease the score base on elapsed time */
current_node->score -=
sconf->time_score *
(int)(apr_time_sec(now) - apr_time_sec(current_node->last_stat_time));
@@ -142,14 +142,16 @@
}
/*
- Spawn control is base on such strategy:
- 1. Increate score if application is terminated
- 2. Increate score if application is spawned
- 3. Decrease score each second while score is positive
- 4. Negative spawn request if score is higher than up limit
- 5. Negative spawn request if total process count higher than up limit
- 6. Negative spawn request if process count of this class higher than up limit
-*/
+ * Spawn control strategy:
+ * 1. Add FcgidSpawnScore to score if application is terminated
+ * 2. Add FcgidTerminationScore to score if application is spawned
+ * 3. Subtract FcgidTimeScore from score each second while score is positive
+ * 4. Ignore spawn request if score is higher than FcgidSpawnScoreUpLimit
+ * 5. Ignore spawn request if total process count higher than
+ * FcgidSpawnScoreUpLimit
+ * 6. Ignore spawn request if process count of this class is higher than
+ * FcgidMaxProcessesPerClass
+ */
int is_spawn_allowed(server_rec * main_server, fcgid_command * command)
{
struct fcgid_stat_node *current_node;
@@ -205,9 +207,8 @@
}
/*
- Process count of this class higher than up limit?
+ * Process count of this class higher than up limit?
*/
- /* I need max class proccess count */
if (current_node->process_counter >= current_node->max_class_process_count) {
ap_log_error(APLOG_MARK, APLOG_INFO, 0, main_server,
"mod_fcgid: too many %s processes (current:%d, max:%d), skip the spawn request",
