[asterisk-commits] dvossel: trunk r233196 - in /trunk: apps/app_queue.c configs/queues.conf.sample

[SVN commits to the Asterisk project]

Author: dvossel
Date: Fri Dec  4 12:48:31 2009
New Revision: 233196

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=233196
Log:

new queue option, penaltymemberslimit, disregards penalty on too few queue members when enabled 

(closes issue #14559)
Reported by: fiddur
Patches:
      trunk-199584-1.diff uploaded by fiddur (license 678)
Tested by: fiddur, dvossel

Modified:
    trunk/apps/app_queue.c
    trunk/configs/queues.conf.sample

Modified: trunk/apps/app_queue.c
URL: http://svnview.digium.com/svn/asterisk/trunk/apps/app_queue.c?view=diff&rev=233196&r1=233195&r2=233196
==============================================================================
--- trunk/apps/app_queue.c (original)
+++ trunk/apps/app_queue.c Fri Dec  4 12:48:31 2009
@@ -954,6 +954,7 @@
 	int count;                          /*!< How many entries */
 	int maxlen;                         /*!< Max number of entries */
 	int wrapuptime;                     /*!< Wrapup Time */
+	int penaltymemberslimit;            /*!< Disregard penalty when queue has fewer than this many members */
 
 	int retry;                          /*!< Retry calling everyone after this amount of time */
 	int timeout;                        /*!< How long to wait for an answer */
@@ -1447,6 +1448,7 @@
 	q->monfmt[0] = '\0';
 	q->reportholdtime = 0;
 	q->wrapuptime = 0;
+	q->penaltymemberslimit = 0;
 	q->joinempty = 0;
 	q->leavewhenempty = 0;
 	q->memberdelay = 0;
@@ -1752,6 +1754,8 @@
 			q->retry = DEFAULT_RETRY;
 	} else if (!strcasecmp(param, "wrapuptime")) {
 		q->wrapuptime = atoi(val);
+	} else if (!strcasecmp(param, "penaltymemberslimit")) {
+		q->penaltymemberslimit = atoi(val);
 	} else if (!strcasecmp(param, "autofill")) {
 		q->autofill = ast_true(val);
 	} else if (!strcasecmp(param, "monitor-type")) {
@@ -3691,13 +3695,23 @@
  */
 static int calc_metric(struct call_queue *q, struct member *mem, int pos, struct queue_ent *qe, struct callattempt *tmp)
 {
-	if ((qe->max_penalty && (mem->penalty > qe->max_penalty)) || (qe->min_penalty && (mem->penalty < qe->min_penalty)))
-		return -1;
+	/* disregarding penalty on too few members? */
+	unsigned char usepenalty = (q->membercount <= q->penaltymemberslimit) ? 0 : 1;
+
+	if (usepenalty) {
+		if ((qe->max_penalty && (mem->penalty > qe->max_penalty)) ||
+			(qe->min_penalty && (mem->penalty < qe->min_penalty))) {
+			return -1;
+		}
+	} else {
+		ast_debug(1, "Disregarding penalty, %d members and %d in penaltymemberslimit.\n",
+			  q->membercount, q->penaltymemberslimit);
+	}
 
 	switch (q->strategy) {
 	case QUEUE_STRATEGY_RINGALL:
 		/* Everyone equal, except for penalty */
-		tmp->metric = mem->penalty * 1000000;
+		tmp->metric = mem->penalty * 1000000 * usepenalty;
 		break;
 	case QUEUE_STRATEGY_LINEAR:
 		if (pos < qe->linpos) {
@@ -3708,7 +3722,7 @@
 				qe->linwrapped = 1;
 			tmp->metric = pos;
 		}
-		tmp->metric += mem->penalty * 1000000;
+		tmp->metric += mem->penalty * 1000000 * usepenalty;
 		break;
 	case QUEUE_STRATEGY_RRMEMORY:
 		if (pos < q->rrpos) {
@@ -3719,25 +3733,25 @@
 				q->wrapped = 1;
 			tmp->metric = pos;
 		}
-		tmp->metric += mem->penalty * 1000000;
+		tmp->metric += mem->penalty * 1000000 * usepenalty;
 		break;
 	case QUEUE_STRATEGY_RANDOM:
 		tmp->metric = ast_random() % 1000;
-		tmp->metric += mem->penalty * 1000000;
+		tmp->metric += mem->penalty * 1000000 * usepenalty;
 		break;
 	case QUEUE_STRATEGY_WRANDOM:
 		tmp->metric = ast_random() % ((1 + mem->penalty) * 1000);
 		break;
 	case QUEUE_STRATEGY_FEWESTCALLS:
 		tmp->metric = mem->calls;
-		tmp->metric += mem->penalty * 1000000;
+		tmp->metric += mem->penalty * 1000000 * usepenalty;
 		break;
 	case QUEUE_STRATEGY_LEASTRECENT:
 		if (!mem->lastcall)
 			tmp->metric = 0;
 		else
 			tmp->metric = 1000000 - (time(NULL) - mem->lastcall);
-		tmp->metric += mem->penalty * 1000000;
+		tmp->metric += mem->penalty * 1000000 * usepenalty;
 		break;
 	default:
 		ast_log(LOG_WARNING, "Can't calculate metric for unknown strategy %d\n", q->strategy);

Modified: trunk/configs/queues.conf.sample
URL: http://svnview.digium.com/svn/asterisk/trunk/configs/queues.conf.sample?view=diff&rev=233196&r1=233195&r2=233196
==============================================================================
--- trunk/configs/queues.conf.sample (original)
+++ trunk/configs/queues.conf.sample Fri Dec  4 12:48:31 2009
@@ -111,6 +111,12 @@
 ; of the queue and sent to that extension in this context.
 ;
 ;context = qoutcon
+;
+; A limit can be set to disregard penalty settings when the queue has
+; too few members.  No penalty will be weighed in if there are only X
+; or fewer queue members. (default 0)
+;
+;penaltymemberslimit = 5
 ;
 ;----------------------QUEUE TIMING OPTIONS------------------------------------
 ; A Queue has two different "timeout" values associated with it. One is the