lib/plugin/plugin-so.c: add logging

[babeltrace.git] / include / babeltrace / plugin / plugin-internal.h

diff --git a/include/babeltrace/plugin/plugin-internal.h b/include/babeltrace/plugin/plugin-internal.h
index 8249d1004db10c68cf7a268d7882c3f69baf344d..a4411976a4c74b2fce3f5fdd67f45aa2307a9622 100644 (file)
--- a/include/babeltrace/plugin/plugin-internal.h
+++ b/include/babeltrace/plugin/plugin-internal.h
@@ -28,6 +28,7 @@
  */
 
 #include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/plugin/plugin.h>
 #include <babeltrace/plugin/plugin-dev.h>
 #include <babeltrace/object-internal.h>
 #include <babeltrace/types.h>
@@ -79,6 +80,34 @@ struct bt_plugin_set {
        GPtrArray *plugins;
 };
 
+static inline
+const char *bt_plugin_status_string(enum bt_plugin_status status)
+{
+       switch (status) {
+       case BT_PLUGIN_STATUS_OK:
+               return "BT_PLUGIN_STATUS_OK";
+       case BT_PLUGIN_STATUS_ERROR:
+               return "BT_PLUGIN_STATUS_ERROR";
+       case BT_PLUGIN_STATUS_NOMEM:
+               return "BT_PLUGIN_STATUS_NOMEM";
+       default:
+               return "(unknown)";
+       }
+}
+
+static inline
+const char *bt_plugin_type_string(enum bt_plugin_type type)
+{
+       switch (type) {
+       case BT_PLUGIN_TYPE_SO:
+               return "BT_PLUGIN_TYPE_SO";
+       case BT_PLUGIN_TYPE_PYTHON:
+               return "BT_PLUGIN_TYPE_PYTHON";
+       default:
+               return "(unknown)";
+       }
+}
+
 static inline
 void bt_plugin_destroy(struct bt_object *obj)
 {
@@ -86,12 +115,15 @@ void bt_plugin_destroy(struct bt_object *obj)
 
        assert(obj);
        plugin = container_of(obj, struct bt_plugin, base);
+       BT_LOGD("Destroying plugin object: addr=%p, name=\"%s\"",
+               plugin, plugin->info.name ? plugin->info.name->str : NULL);
 
        if (plugin->destroy_spec_data) {
                plugin->destroy_spec_data(plugin);
        }
 
        if (plugin->comp_classes) {
+               BT_LOGD_STR("Putting component classes.");
                g_ptr_array_free(plugin->comp_classes, TRUE);
        }
 
@@ -127,8 +159,12 @@ struct bt_plugin *bt_plugin_create_empty(enum bt_plugin_type type)
 {
        struct bt_plugin *plugin = NULL;
 
+       BT_LOGD("Creating empty plugin object: type=%s",
+               bt_plugin_type_string(type));
+
        plugin = g_new0(struct bt_plugin, 1);
        if (!plugin) {
+               BT_LOGE_STR("Failed to allocate one plugin.");
                goto error;
        }
 
@@ -139,40 +175,49 @@ struct bt_plugin *bt_plugin_create_empty(enum bt_plugin_type type)
        plugin->comp_classes =
                g_ptr_array_new_with_free_func((GDestroyNotify) bt_put);
        if (!plugin->comp_classes) {
+               BT_LOGE_STR("Failed to allocate a GPtrArray.");
                goto error;
        }
 
        /* Create empty info */
        plugin->info.name = g_string_new(NULL);
        if (!plugin->info.name) {
+               BT_LOGE_STR("Failed to allocate a GString.");
                goto error;
        }
 
        plugin->info.path = g_string_new(NULL);
        if (!plugin->info.path) {
+               BT_LOGE_STR("Failed to allocate a GString.");
                goto error;
        }
 
        plugin->info.description = g_string_new(NULL);
        if (!plugin->info.description) {
+               BT_LOGE_STR("Failed to allocate a GString.");
                goto error;
        }
 
        plugin->info.author = g_string_new(NULL);
        if (!plugin->info.author) {
+               BT_LOGE_STR("Failed to allocate a GString.");
                goto error;
        }
 
        plugin->info.license = g_string_new(NULL);
        if (!plugin->info.license) {
+               BT_LOGE_STR("Failed to allocate a GString.");
                goto error;
        }
 
        plugin->info.version.extra = g_string_new(NULL);
        if (!plugin->info.version.extra) {
+               BT_LOGE_STR("Failed to allocate a GString.");
                goto error;
        }
 
+       BT_LOGD("Created empty plugin object: type=%s, addr=%p",
+               bt_plugin_type_string(type), plugin);
        goto end;
 
 error:
@@ -189,6 +234,8 @@ void bt_plugin_set_path(struct bt_plugin *plugin, const char *path)
        assert(path);
        g_string_assign(plugin->info.path, path);
        plugin->info.path_set = BT_TRUE;
+       BT_LOGV("Set plugin's path: addr=%p, name=\"%s\", path=\"%s\"",
+               plugin, bt_plugin_get_name(plugin), path);
 }
 
 static inline
@@ -198,6 +245,8 @@ void bt_plugin_set_name(struct bt_plugin *plugin, const char *name)
        assert(name);
        g_string_assign(plugin->info.name, name);
        plugin->info.name_set = BT_TRUE;
+       BT_LOGV("Set plugin's name: addr=%p, name=\"%s\"",
+               plugin, name);
 }
 
 static inline
@@ -208,6 +257,8 @@ void bt_plugin_set_description(struct bt_plugin *plugin,
        assert(description);
        g_string_assign(plugin->info.description, description);
        plugin->info.description_set = BT_TRUE;
+       BT_LOGV("Set plugin's description: addr=%p, name=\"%s\"",
+               plugin, bt_plugin_get_name(plugin));
 }
 
 static inline
@@ -217,6 +268,8 @@ void bt_plugin_set_author(struct bt_plugin *plugin, const char *author)
        assert(author);
        g_string_assign(plugin->info.author, author);
        plugin->info.author_set = BT_TRUE;
+       BT_LOGV("Set plugin's author: addr=%p, name=\"%s\", author=\"%s\"",
+               plugin, bt_plugin_get_name(plugin), author);
 }
 
 static inline
@@ -226,6 +279,8 @@ void bt_plugin_set_license(struct bt_plugin *plugin, const char *license)
        assert(license);
        g_string_assign(plugin->info.license, license);
        plugin->info.license_set = BT_TRUE;
+       BT_LOGV("Set plugin's path: addr=%p, name=\"%s\", license=\"%s\"",
+               plugin, bt_plugin_get_name(plugin), license);
 }
 
 static inline
@@ -242,12 +297,24 @@ void bt_plugin_set_version(struct bt_plugin *plugin, unsigned int major,
        }
 
        plugin->info.version_set = BT_TRUE;
+       BT_LOGV("Set plugin's version: addr=%p, name=\"%s\", "
+               "major=%u, minor=%u, patch=%u, extra=\"%s\"",
+               plugin, bt_plugin_get_name(plugin),
+               major, minor, patch, extra);
 }
 
 static inline
 void bt_plugin_freeze(struct bt_plugin *plugin)
 {
        assert(plugin);
+
+       if (plugin->frozen) {
+               return;
+       }
+
+       BT_LOGD("Freezing plugin: addr=%p, name=\"%s\", path=\"%s\"",
+               plugin, bt_plugin_get_name(plugin),
+               bt_plugin_get_path(plugin));
        plugin->frozen = BT_TRUE;
 }
 
@@ -261,7 +328,10 @@ void bt_plugin_set_destroy(struct bt_object *obj)
                return;
        }
 
+       BT_LOGD("Destroying plugin set: addr=%p", plugin_set);
+
        if (plugin_set->plugins) {
+               BT_LOGD_STR("Putting plugins.");
                g_ptr_array_free(plugin_set->plugins, TRUE);
        }
 
@@ -277,15 +347,19 @@ struct bt_plugin_set *bt_plugin_set_create(void)
                goto end;
        }
 
+       BT_LOGD_STR("Creating empty plugin set.");
        bt_object_init(plugin_set, bt_plugin_set_destroy);
 
        plugin_set->plugins = g_ptr_array_new_with_free_func(
                (GDestroyNotify) bt_put);
        if (!plugin_set->plugins) {
+               BT_LOGE_STR("Failed to allocate a GPtrArray.");
                BT_PUT(plugin_set);
                goto end;
        }
 
+       BT_LOGD("Created empty plugin set: addr=%p", plugin_set);
+
 end:
        return plugin_set;
 }
@@ -297,21 +371,11 @@ void bt_plugin_set_add_plugin(struct bt_plugin_set *plugin_set,
        assert(plugin_set);
        assert(plugin);
        g_ptr_array_add(plugin_set->plugins, bt_get(plugin));
-}
-
-static inline
-const char *bt_plugin_status_string(enum bt_plugin_status status)
-{
-       switch (status) {
-       case BT_PLUGIN_STATUS_OK:
-               return "BT_PLUGIN_STATUS_OK";
-       case BT_PLUGIN_STATUS_ERROR:
-               return "BT_PLUGIN_STATUS_ERROR";
-       case BT_PLUGIN_STATUS_NOMEM:
-               return "BT_PLUGIN_STATUS_NOMEM";
-       default:
-               return "(unknown)";
-       }
+       BT_LOGV("Added plugin to plugin set: "
+               "plugin-set-addr=%p, plugin-addr=%p, plugin-name=\"%s\", "
+               "plugin-path=\"%s\"",
+               plugin_set, plugin, bt_plugin_get_name(plugin),
+               bt_plugin_get_path(plugin));
 }
 
 #endif /* BABELTRACE_PLUGIN_PLUGIN_INTERNAL_H */