lttng-live: populate trace name
[babeltrace.git] / plugins / ctf / lttng-live / lttng-live.c
index 0e64f7d969ab89405cded2a0be1a0cea8261f23e..4954a3c93033528825157c84a8def4929de515a5 100644 (file)
@@ -27,6 +27,9 @@
  * SOFTWARE.
  */
 
+#define BT_LOG_TAG "PLUGIN-CTF-LTTNG-LIVE-SRC"
+#include "logging.h"
+
 #include <babeltrace/ctf-ir/packet.h>
 #include <babeltrace/graph/component-source.h>
 #include <babeltrace/graph/private-port.h>
@@ -48,9 +51,6 @@
 #include <unistd.h>
 #include <plugins-common.h>
 
-#define BT_LOG_TAG "PLUGIN-CTF-LTTNG-LIVE"
-#define BT_LOGLEVEL_NAME "BABELTRACE_PLUGIN_CTF_LTTNG_LIVE_LOG_LEVEL"
-
 #include "data-stream.h"
 #include "metadata.h"
 #include "lttng-live-internal.h"
@@ -83,9 +83,6 @@ static const char *print_state(struct lttng_live_stream_iterator *s)
                        print_state(stream), stream->last_returned_inactivity_timestamp,        \
                        stream->current_inactivity_timestamp)
 
-BT_HIDDEN
-int bt_lttng_live_log_level = BT_LOG_NONE;
-
 BT_HIDDEN
 int lttng_live_add_port(struct lttng_live_component *lttng_live,
                struct lttng_live_stream_iterator *stream_iter)
@@ -236,7 +233,9 @@ void lttng_live_close_trace_streams(struct lttng_live_trace *trace)
 }
 
 BT_HIDDEN
-int lttng_live_add_session(struct lttng_live_component *lttng_live, uint64_t session_id)
+int lttng_live_add_session(struct lttng_live_component *lttng_live,
+               uint64_t session_id, const char *hostname,
+               const char *session_name)
 {
        int ret = 0;
        struct lttng_live_session *s;
@@ -250,8 +249,11 @@ int lttng_live_add_session(struct lttng_live_component *lttng_live, uint64_t ses
        BT_INIT_LIST_HEAD(&s->traces);
        s->lttng_live = lttng_live;
        s->new_streams_needed = true;
+       s->hostname = g_string_new(hostname);
+       s->session_name = g_string_new(session_name);
 
-       BT_LOGI("Reading from session %" PRIu64, s->id);
+       BT_LOGI("Reading from session: %" PRIu64 " hostname: %s session_name: %s",
+               s->id, hostname, session_name);
        bt_list_add(&s->node, &lttng_live->sessions);
        goto end;
 error:
@@ -282,6 +284,12 @@ void lttng_live_destroy_session(struct lttng_live_session *session)
                lttng_live_close_trace_streams(trace);
        }
        bt_list_del(&session->node);
+       if (session->hostname) {
+               g_string_free(session->hostname, TRUE);
+       }
+       if (session->session_name) {
+               g_string_free(session->session_name, TRUE);
+       }
        g_free(session);
 }
 
@@ -451,7 +459,7 @@ void lttng_live_force_new_streams_and_metadata(struct lttng_live_component *lttn
 }
 
 static
-enum bt_notification_iterator_status lttng_live_iterator_next_handle_new_streams_and_metadata(
+enum bt_ctf_lttng_live_iterator_status lttng_live_iterator_next_handle_new_streams_and_metadata(
                struct lttng_live_component *lttng_live)
 {
        enum bt_ctf_lttng_live_iterator_status ret =
@@ -904,7 +912,6 @@ struct bt_value *lttng_live_query_list_sessions(struct bt_component_class *comp_
        struct bt_value *results = NULL;
        const char *url;
        struct bt_live_viewer_connection *viewer_connection = NULL;
-       enum bt_value_status ret;
 
        url_value = bt_value_map_get(params, "url");
        if (!url_value || bt_value_is_null(url_value) || !bt_value_is_string(url_value)) {
@@ -912,15 +919,13 @@ struct bt_value *lttng_live_query_list_sessions(struct bt_component_class *comp_
                goto error;
        }
 
-       ret = bt_value_string_get(url_value, &url);
-       if (ret != BT_VALUE_STATUS_OK) {
+       if (bt_value_string_get(url_value, &url) != BT_VALUE_STATUS_OK) {
                BT_LOGW("\"url\" parameter is required to be a string value");
                goto error;
        }
 
        viewer_connection = bt_live_viewer_connection_create(url, NULL);
        if (!viewer_connection) {
-               ret = BT_COMPONENT_STATUS_NOMEM;
                goto error;
        }
 
@@ -985,13 +990,13 @@ void lttng_live_component_finalize(struct bt_private_component *component)
 
 static
 struct lttng_live_component *lttng_live_component_create(struct bt_value *params,
-               struct bt_private_component *private_component)
+               struct bt_private_component *private_component,
+               struct bt_graph *graph)
 {
        struct lttng_live_component *lttng_live;
        struct bt_value *value = NULL;
        const char *url;
        enum bt_value_status ret;
-       struct bt_component *component;
 
        lttng_live = g_new0(struct lttng_live_component, 1);
        if (!lttng_live) {
@@ -1017,27 +1022,13 @@ struct lttng_live_component *lttng_live_component_create(struct bt_value *params
        lttng_live->viewer_connection =
                bt_live_viewer_connection_create(lttng_live->url->str, lttng_live);
        if (!lttng_live->viewer_connection) {
-               if (bt_graph_is_canceled(lttng_live->graph)) {
-                       ret = BT_COMPONENT_STATUS_AGAIN;
-               } else {
-                       ret = BT_COMPONENT_STATUS_NOMEM;
-               }
                goto error;
        }
        if (lttng_live_create_viewer_session(lttng_live)) {
-               if (bt_graph_is_canceled(lttng_live->graph)) {
-                       ret = BT_COMPONENT_STATUS_AGAIN;
-               } else {
-                       ret = BT_COMPONENT_STATUS_NOMEM;
-               }
                goto error;
        }
        lttng_live->private_component = private_component;
-
-       component = bt_component_from_private_component(private_component);
-       lttng_live->graph = bt_component_get_graph(component);
-       bt_put(lttng_live->graph);      /* weak */
-       bt_put(component);
+       lttng_live->graph = graph;
 
        goto end;
 
@@ -1049,16 +1040,29 @@ end:
 }
 
 BT_HIDDEN
-enum bt_component_status lttng_live_component_init(struct bt_private_component *component,
+enum bt_component_status lttng_live_component_init(
+               struct bt_private_component *private_component,
                struct bt_value *params, void *init_method_data)
 {
        struct lttng_live_component *lttng_live;
        enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
+       struct bt_component *component;
+       struct bt_graph *graph;
+
+       component = bt_component_from_private_component(private_component);
+       graph = bt_component_get_graph(component);
+       bt_put(graph);  /* weak */
+       bt_put(component);
 
        /* Passes ownership of iter ref to lttng_live_component_create. */
-       lttng_live = lttng_live_component_create(params, component);
+       lttng_live = lttng_live_component_create(params, private_component,
+                       graph);
        if (!lttng_live) {
-               ret = BT_COMPONENT_STATUS_NOMEM;
+               if (bt_graph_is_canceled(graph)) {
+                       ret = BT_COMPONENT_STATUS_AGAIN;
+               } else {
+                       ret = BT_COMPONENT_STATUS_NOMEM;
+               }
                goto end;
        }
 
@@ -1072,7 +1076,7 @@ enum bt_component_status lttng_live_component_init(struct bt_private_component *
                                lttng_live->no_stream_iter);
        lttng_live->no_stream_iter->port = lttng_live->no_stream_port;
 
-       ret = bt_private_component_set_user_data(component, lttng_live);
+       ret = bt_private_component_set_user_data(private_component, lttng_live);
        if (ret != BT_COMPONENT_STATUS_OK) {
                goto error;
        }
@@ -1080,7 +1084,7 @@ enum bt_component_status lttng_live_component_init(struct bt_private_component *
 end:
        return ret;
 error:
-       (void) bt_private_component_set_user_data(component, NULL);
+       (void) bt_private_component_set_user_data(private_component, NULL);
        lttng_live_component_destroy_data(lttng_live);
        return ret;
 }
@@ -1121,35 +1125,3 @@ end:
        bt_put(self_port);
        return status;
 }
-
-static
-void __attribute__((constructor)) bt_lttng_live_logging_ctor(void)
-{
-       enum bt_logging_level log_level = BT_LOG_NONE;
-       const char *log_level_env = getenv(BT_LOGLEVEL_NAME);
-
-       if (!log_level_env) {
-               return;
-       }
-
-       if (strcmp(log_level_env, "VERBOSE") == 0) {
-               log_level = BT_LOGGING_LEVEL_VERBOSE;
-       } else if (strcmp(log_level_env, "DEBUG") == 0) {
-               log_level = BT_LOGGING_LEVEL_DEBUG;
-       } else if (strcmp(log_level_env, "INFO") == 0) {
-               log_level = BT_LOGGING_LEVEL_INFO;
-       } else if (strcmp(log_level_env, "WARN") == 0) {
-               log_level = BT_LOGGING_LEVEL_WARN;
-       } else if (strcmp(log_level_env, "ERROR") == 0) {
-               log_level = BT_LOGGING_LEVEL_ERROR;
-       } else if (strcmp(log_level_env, "FATAL") == 0) {
-               log_level = BT_LOGGING_LEVEL_FATAL;
-       } else {
-               bt_lttng_live_log_level = BT_LOGGING_LEVEL_FATAL;
-               BT_LOGF("Incorrect log level specified in %s",
-                               BT_LOGLEVEL_NAME);
-               abort();
-       }
-
-        bt_lttng_live_log_level = log_level;
-}
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