[Asterisk-code-review] app queue: Add member flag "in call" to prevent reading wron... (asterisk[11])

Martin Tomec asteriskteam at digium.com
Tue Dec 29 05:47:10 CST 2015


Martin Tomec has uploaded a new change for review.

  https://gerrit.asterisk.org/1881

Change subject: app_queue: Add member flag "in_call" to prevent reading wrong lastcall time
......................................................................

app_queue: Add member flag "in_call" to prevent reading wrong lastcall time

Member lastcall time is updated later than member status. There was chance to
check wrapuptime for available member with wrong (old) lastcall time.
New boolean flag "in_call" is set to true right before connecting call, and
reset to false after update of lastcall time. Members with "in_call" set to true
are treat as unavailable.

ASTERISK-19820 #close

Change-Id: I1923230cf9859ee51563a8ed420a0628b4d2e500
---
M apps/app_queue.c
1 file changed, 51 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/81/1881/1

diff --git a/apps/app_queue.c b/apps/app_queue.c
index 981e49f..234666a 100644
--- a/apps/app_queue.c
+++ b/apps/app_queue.c
@@ -1208,6 +1208,7 @@
 	int paused;                          /*!< Are we paused (not accepting calls)? */
 	int queuepos;                        /*!< In what order (pertains to certain strategies) should this member be called? */
 	time_t lastcall;                     /*!< When last successful call was hungup */
+	unsigned int in_call:1;              /*!< True if member is still in call. (so lastcall is not actual) */
 	struct call_queue *lastqueue;	     /*!< Last queue we received a call */
 	unsigned int dead:1;                 /*!< Used to detect members deleted in realtime */
 	unsigned int delme:1;                /*!< Flag to delete entry on reload */
@@ -1647,6 +1648,10 @@
 			if (member->paused && (conditions & QUEUE_EMPTY_PAUSED)) {
 				ast_debug(4, "%s is unavailable because he is paused'\n", member->membername);
 				break;
+			} else if ((conditions & QUEUE_EMPTY_WRAPUP) && member->in_call && q->wrapuptime) {
+				ast_debug(4, "%s is unavailable because still in call, so we can`t check "
+					"wrapuptime (%d)\n", member->membername, q->wrapuptime);
+				break;
 			} else if ((conditions & QUEUE_EMPTY_WRAPUP) && member->lastcall && q->wrapuptime && (time(NULL) - q->wrapuptime < member->lastcall)) {
 				ast_debug(4, "%s is unavailable because it has only been %d seconds since his last call (wrapup time is %d)\n", member->membername, (int) (time(NULL) - member->lastcall), q->wrapuptime);
 				break;
@@ -1793,6 +1798,9 @@
 	}
 
 	/* Let wrapuptimes override device state availability */
+	if (q->wrapuptime && mem->in_call) {
+		available = 0; /* member is still in call, cant check wrapuptime to lastcall time */
+	}
 	if (mem->lastcall && q->wrapuptime && (time(NULL) - q->wrapuptime < mem->lastcall)) {
 		available = 0;
 	}
@@ -2158,6 +2166,7 @@
 		while ((mem = ao2_iterator_next(&mem_iter))) {
 			mem->calls = 0;
 			mem->lastcall = 0;
+			mem->in_call = 0;
 			ao2_ref(mem, -1);
 		}
 		ao2_iterator_destroy(&mem_iter);
@@ -3624,6 +3633,12 @@
 		return 0;
 	}
 
+	if (call->member->in_call && call->lastqueue->wrapuptime) {
+		ast_debug(1, "%s is in call, so not available (wrapuptime %d)\n",
+			call->interface, call->lastqueue->wrapuptime);
+		return 0;
+	}
+
 	if ((call->lastqueue && call->lastqueue->wrapuptime && (time(NULL) - call->lastcall < call->lastqueue->wrapuptime))
 		|| (!call->lastqueue && qe->parent->wrapuptime && (time(NULL) - call->lastcall < qe->parent->wrapuptime))) {
 		ast_debug(1, "Wrapuptime not yet expired on queue %s for %s\n",
@@ -4903,6 +4918,9 @@
 				time(&mem->lastcall);
 				mem->calls++;
 				mem->lastqueue = q;
+				mem->in_call = 0;
+				ast_debug(4, "Marked member %s as NOT in_call. Lastcall time: %ld \n",
+					mem->membername, (long)mem->lastcall);
 				ao2_ref(mem, -1);
 			}
 			ao2_unlock(qtmp);
@@ -4914,6 +4932,9 @@
 		time(&member->lastcall);
 		member->calls++;
 		member->lastqueue = q;
+		member->in_call = 0;
+		ast_debug(4, "Marked member %s as NOT in_call. Lastcall time: %ld \n",
+			member->membername, (long)member->lastcall);
 		ao2_unlock(q);
 	}
 	ao2_lock(q);
@@ -5273,6 +5294,9 @@
 	struct ao2_iterator memi;
 	struct ast_datastore *datastore, *transfer_ds;
 	struct queue_end_bridge *queue_end_bridge = NULL;
+	struct ao2_iterator queue_iter; /* to iterate through all queues (for shared_lastcall)*/
+	struct member *mem;
+	struct call_queue *queuetmp;
 
 	ast_channel_lock(qe->chan);
 	datastore = ast_channel_datastore_find(qe->chan, &dialed_interface_info, NULL);
@@ -5905,6 +5929,28 @@
 			}
 		}
 		qe->handled++;
+
+		/** mark member as "in_call" in all queues */
+		if (shared_lastcall) {
+			queue_iter = ao2_iterator_init(queues, 0);
+			while ((queuetmp = ao2_t_iterator_next(&queue_iter, "Iterate through queues"))) {
+				ao2_lock(queuetmp);
+				if ((mem = ao2_find(queuetmp->members, member, OBJ_POINTER))) {
+					mem->in_call = 1;
+					ast_debug(4, "Marked member %s as in_call \n", mem->membername);
+					ao2_ref(mem, -1);
+				}
+				ao2_unlock(queuetmp);
+				queue_t_unref(queuetmp, "Done with iterator");
+			}
+			ao2_iterator_destroy(&queue_iter);
+		} else {
+			ao2_lock(qe->parent);
+			member->in_call = 1;
+			ast_debug(4, "Marked member %s as in_call \n", mem->membername);
+			ao2_unlock(qe->parent);
+		}
+
 		ast_queue_log(queuename, ast_channel_uniqueid(qe->chan), member->membername, "CONNECT", "%ld|%s|%ld", (long) (time(NULL) - qe->start), ast_channel_uniqueid(peer),
 													(long)(orig - to > 0 ? (orig - to) / 1000 : 0));
 
@@ -8455,10 +8501,11 @@
 
 				ast_str_append(&out, 0, " (ringinuse %s)", mem->ringinuse ? "enabled" : "disabled");
 
-				ast_str_append(&out, 0, "%s%s%s (%s)",
+				ast_str_append(&out, 0, "%s%s%s%s (%s)",
 					mem->dynamic ? " (dynamic)" : "",
 					mem->realtime ? " (realtime)" : "",
 					mem->paused ? " (paused)" : "",
+					mem->in_call ? " (in call)" : "",
 					ast_devstate2str(mem->status));
 				if (mem->calls) {
 					ast_str_append(&out, 0, " has taken %d calls (last was %ld secs ago)",
@@ -8817,12 +8864,14 @@
 						"Penalty: %d\r\n"
 						"CallsTaken: %d\r\n"
 						"LastCall: %d\r\n"
+						"IsInCall: %d\r\n"
 						"Status: %d\r\n"
 						"Paused: %d\r\n"
 						"%s"
 						"\r\n",
 						q->name, mem->membername, mem->interface, mem->state_interface, mem->dynamic ? "dynamic" : "static",
-						mem->penalty, mem->calls, (int)mem->lastcall, mem->status, mem->paused, idText);
+						mem->penalty, mem->calls, (int)mem->lastcall, mem->in_call, mem->status,
+						mem->paused, idText);
 				}
 				ao2_ref(mem, -1);
 			}

-- 
To view, visit https://gerrit.asterisk.org/1881
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I1923230cf9859ee51563a8ed420a0628b4d2e500
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: 11
Gerrit-Owner: Martin Tomec <tomec.martin at gmail.com>



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