Generalize enable_ust_event to support multiple types of ust object
authorJonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Fri, 10 Jan 2020 19:47:30 +0000 (14:47 -0500)
committerJérémie Galarneau <jeremie.galarneau@efficios.com>
Fri, 18 Dec 2020 21:34:42 +0000 (16:34 -0500)
This will allow us to pass a trigger object later.

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: I594c3eb0437345406e3a24fcbfbf4b7a8162908b

src/bin/lttng-sessiond/ust-app.c

index 8807aac261583e164d14cd98b7bf7ed26c2ab45e..f61925c53f38d95a898a7a787df83496f43565d9 100644 (file)
@@ -1572,21 +1572,20 @@ error:
 /*
  * Enable the specified event on to UST tracer for the UST session.
  */
-static int enable_ust_event(struct ust_app *app,
-               struct ust_app_session *ua_sess, struct ust_app_event *ua_event)
+static int enable_ust_object(
+               struct ust_app *app, struct lttng_ust_object_data *ust_object)
 {
        int ret;
 
        health_code_update();
 
        pthread_mutex_lock(&app->sock_lock);
-       ret = ustctl_enable(app->sock, ua_event->obj);
+       ret = ustctl_enable(app->sock, ust_object);
        pthread_mutex_unlock(&app->sock_lock);
        if (ret < 0) {
                if (ret != -EPIPE && ret != -LTTNG_UST_ERR_EXITING) {
-                       ERR("UST app event %s enable failed for app (pid: %d) "
-                                       "and session handle %d with ret %d",
-                                       ua_event->attr.name, app->pid, ua_sess->handle, ret);
+                       ERR("UST app enable failed for object %p app (pid: %d) with ret %d",
+                                       ust_object, app->pid, ret);
                } else {
                        /*
                         * This is normal behavior, an application can die during the
@@ -1594,13 +1593,13 @@ static int enable_ust_event(struct ust_app *app,
                         * continue normally.
                         */
                        ret = 0;
-                       DBG3("UST app enable event failed. Application is dead.");
+                       DBG3("Failed to enable UST app object. Application is dead.");
                }
                goto error;
        }
 
-       DBG2("UST app event %s enabled successfully for app (pid: %d)",
-                       ua_event->attr.name, app->pid);
+       DBG2("UST app object %p enabled successfully for app (pid: %d)",
+                       ust_object, app->pid);
 
 error:
        health_code_update();
@@ -1696,8 +1695,8 @@ int create_ust_event(struct ust_app *app, struct ust_app_session *ua_sess,
 
        ua_event->handle = ua_event->obj->handle;
 
-       DBG2("UST app event %s created successfully for pid:%d",
-                       ua_event->attr.name, app->pid);
+       DBG2("UST app event %s created successfully for pid:%d object: %p",
+                       ua_event->attr.name, app->pid, ua_event->obj);
 
        health_code_update();
 
@@ -1723,7 +1722,7 @@ int create_ust_event(struct ust_app *app, struct ust_app_session *ua_sess,
                 * We now need to explicitly enable the event, since it
                 * is now disabled at creation.
                 */
-               ret = enable_ust_event(app, ua_sess, ua_event);
+               ret = enable_ust_object(app, ua_event->obj);
                if (ret < 0) {
                        /*
                         * If we hit an EPERM, something is wrong with our enable call. If
@@ -2334,7 +2333,7 @@ int enable_ust_app_event(struct ust_app_session *ua_sess,
 {
        int ret;
 
-       ret = enable_ust_event(app, ua_sess, ua_event);
+       ret = enable_ust_object(app, ua_event->obj);
        if (ret < 0) {
                goto error;
        }
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