[Asterisk-code-review] res pjsip/contacts/statsd: Make contact lifecycle events mo... (asterisk[master])

George Joseph asteriskteam at digium.com
Fri Dec 4 17:23:42 CST 2015


George Joseph has uploaded a new change for review.

  https://gerrit.asterisk.org/1768

Change subject: res_pjsip/contacts/statsd:  Make contact lifecycle events more consistent
......................................................................

res_pjsip/contacts/statsd:  Make contact lifecycle events more consistent

It will never be perfect or even pretty, mostly because of the differences
between static and dynamic contacts.

Created:

Can't use the contact or contact_status alloc functions
because the objects come and go regardless of the actual state.

Can't use the contact_apply_handler, ast_sip_location_add_contact or
a sorcery created handler because they only get called for dynamic
contacts.  Similarly, permanent_uri_handler only gets called for
static contacts.

So, Matt had it right. :)  ast_res_pjsip_find_or_create_contact_status is
the only place it can go and not have duplicated code.  Both
permanent_uri_handler and contact_apply_handler call find_or_create.

Removed:

Can't use the destructors for the same reason as above.  The only
place to put this is in persistent_endpoint_contact_deleted_observer
which I believe is the "correct" place but even that will handle only
dynamic contacts.  This doesn't called on shutdown however.  There is
no hook to use for static contacts that may be removed because of a
config change while asterisk is in operation.

I moved the cleanup of contact_status from ast_sip_location_delete_contact
to the handler as well.

Status Change and RTT:

Although they worked fine where they were (in update_contact_status) I
moved them to persistent_endpoint_contact_status_observer to make it
more consistent with removed.  There was logic there already to detect
a state change.

Finally, fixed a nit in permanent_uri_handler rmudgett reported
eralier.

ASTERISK-25608 #close

Change-Id: I4b56e7dfc3be3baaaf6f1eac5b2068a0b79e357d
Reported-by: George Joseph
Tested-by: George Joseph
---
M res/res_pjsip/location.c
M res/res_pjsip/pjsip_configuration.c
M res/res_pjsip/pjsip_options.c
3 files changed, 19 insertions(+), 25 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/68/1768/1

diff --git a/res/res_pjsip/location.c b/res/res_pjsip/location.c
index 8f540cf..c070e7d 100644
--- a/res/res_pjsip/location.c
+++ b/res/res_pjsip/location.c
@@ -317,14 +317,6 @@
 
 int ast_sip_location_delete_contact(struct ast_sip_contact *contact)
 {
-	void *contact_status_obj;
-
-	contact_status_obj = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), CONTACT_STATUS, ast_sorcery_object_get_id(contact));
-	if (contact_status_obj) {
-		ast_sorcery_delete(ast_sip_get_sorcery(), contact_status_obj);
-		ao2_ref(contact_status_obj, -1);
-	}
-
 	return ast_sorcery_delete(ast_sip_get_sorcery(), contact);
 }
 
@@ -389,7 +381,7 @@
 		struct ast_sip_contact *contact;
 		struct ast_sip_contact_status *status;
 		char hash[33];
-		char contact_id[strlen(aor_id) + sizeof(hash) + 2 + 1];
+		char contact_id[strlen(aor_id) + sizeof(hash) + 2];
 
 		if (!aor->permanent_contacts) {
 			aor->permanent_contacts = ao2_container_alloc_list(AO2_ALLOC_OPT_LOCK_NOLOCK,
@@ -406,6 +398,8 @@
 			return -1;
 		}
 
+		ast_string_field_set(contact, uri, contact_uri);
+
 		status = ast_res_pjsip_find_or_create_contact_status(contact);
 		if (!status) {
 			ao2_ref(contact, -1);
@@ -413,7 +407,6 @@
 		}
 		ao2_ref(status, -1);
 
-		ast_string_field_set(contact, uri, contact_uri);
 		ao2_link(aor->permanent_contacts, contact);
 		ao2_ref(contact, -1);
 	}
@@ -1031,7 +1024,7 @@
 	 * Note that this must done here, as contacts will create the contact_status
 	 * object before PJSIP options handling is initialized.
 	 */
-	for (i = 0; i < REMOVED; i++) {
+	for (i = 0; i <= REMOVED; i++) {
 		ast_statsd_log_full_va("PJSIP.contacts.states.%s", AST_STATSD_GAUGE, 0, 1.0, ast_sip_get_contact_status_label(i));
 	}
 
diff --git a/res/res_pjsip/pjsip_configuration.c b/res/res_pjsip/pjsip_configuration.c
index 30e5674..16c32cf 100644
--- a/res/res_pjsip/pjsip_configuration.c
+++ b/res/res_pjsip/pjsip_configuration.c
@@ -20,6 +20,7 @@
 #include "asterisk/sorcery.h"
 #include "asterisk/callerid.h"
 #include "asterisk/test.h"
+#include "asterisk/statsd.h"
 
 /*! \brief Number of buckets for persistent endpoint information */
 #define PERSISTENT_BUCKETS 53
@@ -161,20 +162,21 @@
 	const struct ast_sip_contact *contact = object;
 	struct ast_sip_contact_status *contact_status;
 
-	contact_status = ast_sorcery_alloc(ast_sip_get_sorcery(), CONTACT_STATUS,
-		ast_sorcery_object_get_id(contact));
+	contact_status = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), CONTACT_STATUS, ast_sorcery_object_get_id(contact));
 	if (!contact_status) {
 		ast_log(LOG_ERROR, "Unable to create ast_sip_contact_status for contact %s/%s\n",
 			contact->aor, contact->uri);
 		return;
 	}
-	ast_string_field_set(contact_status, uri, contact->uri);
-
-	contact_status->status = REMOVED;
 
 	ast_verb(1, "Contact %s/%s has been deleted\n", contact->aor, contact->uri);
+	ast_statsd_log_string_va("PJSIP.contacts.states.%s", AST_STATSD_GAUGE,
+		"-1", 1.0, ast_sip_get_contact_status_label(contact_status->status));
+	ast_statsd_log_string_va("PJSIP.contacts.states.%s", AST_STATSD_GAUGE,
+		"+1", 1.0, ast_sip_get_contact_status_label(REMOVED));
 
 	ao2_callback(persistent_endpoints, OBJ_NODATA, persistent_endpoint_update_state, contact_status);
+	ast_sorcery_delete(ast_sip_get_sorcery(), contact_status);
 	ao2_cleanup(contact_status);
 }
 
@@ -194,6 +196,9 @@
 		return;
 	}
 
+	ast_statsd_log_full_va("PJSIP.contacts.%s.rtt", AST_STATSD_TIMER,
+		contact_status->status != AVAILABLE ? -1 : contact_status->rtt / 1000, 1.0, ast_sorcery_object_get_id(contact_status));
+
 	if (contact_status->status == contact_status->last_status) {
 		ast_debug(3, "Contact %s/%s status didn't change: %s, RTT: %.3f msec\n",
 			contact_status->aor, contact_status->uri, ast_sip_get_contact_status_label(contact_status->status),
@@ -205,6 +210,11 @@
 			contact_status->rtt / 1000.0);
 	}
 
+	ast_statsd_log_string_va("PJSIP.contacts.states.%s", AST_STATSD_GAUGE,
+		"-1", 1.0, ast_sip_get_contact_status_label(contact_status->last_status));
+	ast_statsd_log_string_va("PJSIP.contacts.states.%s", AST_STATSD_GAUGE,
+		"+1", 1.0, ast_sip_get_contact_status_label(contact_status->status));
+
 	ast_test_suite_event_notify("AOR_CONTACT_UPDATE",
 		"Contact: %s\r\n"
 			"Status: %s",
diff --git a/res/res_pjsip/pjsip_options.c b/res/res_pjsip/pjsip_options.c
index 6762b75..089703b 100644
--- a/res/res_pjsip/pjsip_options.c
+++ b/res/res_pjsip/pjsip_options.c
@@ -174,22 +174,13 @@
 	ast_string_field_set(update, uri, contact->uri);
 	update->last_status = status->status;
 	update->status = value;
-	if (update->last_status != update->status) {
-		ast_statsd_log_string_va("PJSIP.contacts.states.%s", AST_STATSD_GAUGE,
-			"-1", 1.0, ast_sip_get_contact_status_label(update->last_status));
-		ast_statsd_log_string_va("PJSIP.contacts.states.%s", AST_STATSD_GAUGE,
-			"+1", 1.0, ast_sip_get_contact_status_label(update->status));
-	}
 
 	/* if the contact is available calculate the rtt as
 	   the diff between the last start time and "now" */
 	update->rtt = update->status == AVAILABLE && status->rtt_start.tv_sec > 0 ?
 		ast_tvdiff_us(ast_tvnow(), status->rtt_start) : 0;
-
 	update->rtt_start = ast_tv(0, 0);
 
-	ast_statsd_log_full_va("PJSIP.contacts.%s.rtt", AST_STATSD_TIMER,
-		update->rtt / 1000, 1.0, ast_sorcery_object_get_id(update));
 	ast_test_suite_event_notify("AOR_CONTACT_QUALIFY_RESULT",
 		"Contact: %s\r\n"
 		"Status: %s\r\n"

-- 
To view, visit https://gerrit.asterisk.org/1768
To unsubscribe, visit https://gerrit.asterisk.org/settings

Gerrit-MessageType: newchange
Gerrit-Change-Id: I4b56e7dfc3be3baaaf6f1eac5b2068a0b79e357d
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Owner: George Joseph <george.joseph at fairview5.com>



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