Adds cdr logging of calls resulting in CONGESTION

Applies a patch made a long time ago by alecdavis which adds a CDR feature for logging
calls that failed due to congestion.

(closes issue #15907)
Reported by: alecdavis
Patches: 
      cdr_congestion.diff.txt uploaded by alecdavis (license #5546)

Review: https://reviewboard.asterisk.org/r/454/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@329835 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

@@ -70,6 +70,7 @@ CDR
 --------------------------
  * The filter option in cdr_adaptive_odbc now supports negating the argument,
    thus allowing records which do NOT match the specified filter.
+ * Added ability to log CONGESTION calls to CDR
 
 CODECS
 --------------------------

include/asterisk/cdr.h

@@ -58,6 +58,7 @@ enum {
 	AST_CDR_FAILED   = (1 << 1),
 	AST_CDR_BUSY     = (1 << 2),
 	AST_CDR_ANSWERED = (1 << 3),
+	AST_CDR_CONGESTION = (1 << 4),
 };
 
 /*!
@@ -266,6 +267,15 @@ void ast_cdr_answer(struct ast_cdr *cdr);
  */
 extern void ast_cdr_noanswer(struct ast_cdr *cdr);
 
+/*!
+ * \brief A call was set to congestion
+ * \param cdr the cdr you wish to associate with the call
+ * Markst he channel disposition as "CONGESTION"
+ * Will skip CDR's in chain with ANS_LOCK bit set. (see
+ * forkCDR() application
+ */
+extern void ast_cdr_congestion(struct ast_cdr *cdr);
+
 /*!
  * \brief Busy a call
  * \param cdr the cdr you wish to associate with the call

main/cdr.c

@@ -776,6 +776,26 @@ void ast_cdr_noanswer(struct ast_cdr *cdr)
 	}
 }
 
+void ast_cdr_congestion(struct ast_cdr *cdr)
+{
+	char *chan;
+
+	while (cdr) {
+		if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
+			chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
+
+			if (ast_test_flag(cdr, AST_CDR_FLAG_POSTED)) {
+				ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
+			}
+
+			if (cdr->disposition < AST_CDR_CONGESTION) {
+				cdr->disposition = AST_CDR_CONGESTION;
+			}
+		}
+		cdr = cdr->next;
+	}
+}
+
 /* everywhere ast_cdr_disposition is called, it will call ast_cdr_failed()
    if ast_cdr_disposition returns a non-zero value */
 
@@ -792,6 +812,9 @@ int ast_cdr_disposition(struct ast_cdr *cdr, int cause)
 		case AST_CAUSE_NO_ANSWER:
 			ast_cdr_noanswer(cdr);
 			break;
+		case AST_CAUSE_NORMAL_CIRCUIT_CONGESTION:
+			ast_cdr_congestion(cdr);
+			break;
 		case AST_CAUSE_NORMAL:
 			break;
 		default:
@@ -961,6 +984,8 @@ char *ast_cdr_disp2str(int disposition)
 		return "BUSY";
 	case AST_CDR_ANSWERED:
 		return "ANSWERED";
+	case AST_CDR_CONGESTION:
+		return "CONGESTION";
 	}
 	return "UNKNOWN";
 }

main/pbx.c

@@ -9321,8 +9321,10 @@ static int pbx_builtin_congestion(struct ast_channel *chan, const char *data)
 	ast_indicate(chan, AST_CONTROL_CONGESTION);
 	/* Don't change state of an UP channel, just indicate
 	   congestion in audio */
-	if (chan->_state != AST_STATE_UP)
+	if (chan->_state != AST_STATE_UP) {
 		ast_setstate(chan, AST_STATE_BUSY);
+		ast_cdr_congestion(chan->cdr);
+	}
 	wait_for_hangup(chan, data);
 	return -1;
 }