+/*
+ * babeltrace.c
+ *
+ * Babeltrace Trace Converter
+ *
+ * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
+ *
+ * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <babeltrace/babeltrace.h>
+#include <babeltrace/plugin/component-factory.h>
+#include <babeltrace/plugin/plugin.h>
+#include <babeltrace/plugin/component-class.h>
+#include <babeltrace/plugin/notification/iterator.h>
+#include <babeltrace/ref.h>
+#include <babeltrace/values.h>
+#include <stdlib.h>
+#include <babeltrace/ctf-ir/metadata.h> /* for clocks */
+#include <popt.h>
+#include <string.h>
+#include <stdio.h>
+#include "babeltrace-cfg.h"
+#include "default-cfg.h"
-int main(int argv, char **argc)
+static struct bt_component_factory *component_factory;
+
+static
+const char *component_type_str(enum bt_component_type type)
+{
+ switch (type) {
+ case BT_COMPONENT_TYPE_SOURCE:
+ return "source";
+ case BT_COMPONENT_TYPE_SINK:
+ return "sink";
+ case BT_COMPONENT_TYPE_FILTER:
+ return "filter";
+ case BT_COMPONENT_TYPE_UNKNOWN:
+ default:
+ return "unknown";
+ }
+}
+
+static
+void print_component_classes_found(struct bt_component_factory *factory)
+{
+ int count, i;
+
+ if (!babeltrace_verbose) {
+ return;
+ }
+
+ count = bt_component_factory_get_component_class_count(factory);
+ if (count <= 0) {
+ fprintf(stderr, "No component classes found. Please make sure your plug-in search path is set correctly.\n");
+ return;
+ }
+
+ printf_verbose("Found %d component classes.\n", count);
+ for (i = 0; i < count; i++) {
+ struct bt_component_class *component_class =
+ bt_component_factory_get_component_class_index(
+ factory, i);
+ struct bt_plugin *plugin = bt_component_class_get_plugin(
+ component_class);
+ const char *plugin_name = bt_plugin_get_name(plugin);
+ const char *component_name = bt_component_class_get_name(
+ component_class);
+ const char *path = bt_plugin_get_path(plugin);
+ const char *author = bt_plugin_get_author(plugin);
+ const char *license = bt_plugin_get_license(plugin);
+ const char *plugin_description = bt_plugin_get_description(
+ plugin);
+ const char *component_description =
+ bt_component_class_get_description(
+ component_class);
+ enum bt_component_type type = bt_component_class_get_type(
+ component_class);
+
+ printf_verbose("[%s - %s (%s)]\n", plugin_name, component_name,
+ component_type_str(type));
+ printf_verbose("\tpath: %s\n", path ? path : "None");
+ printf_verbose("\tauthor: %s\n", author ? author : "Unknown");
+ printf_verbose("\tlicense: %s\n", license ? license : "Unknown");
+ printf_verbose("\tplugin description: %s\n",
+ plugin_description ? plugin_description : "None");
+ printf_verbose("\tcomponent description: %s\n",
+ component_description ? component_description : "None");
+
+ bt_put(plugin);
+ bt_put(component_class);
+ }
+}
+
+static
+void print_indent(size_t indent)
+{
+ size_t i;
+
+ for (i = 0; i < indent; i++) {
+ printf(" ");
+ }
+}
+
+static
+void print_value(struct bt_value *, size_t, bool);
+
+static
+bool print_map_value(const char *key, struct bt_value *object, void *data)
+{
+ size_t indent = (size_t) data;
+
+ print_indent(indent);
+ printf("\"%s\": ", key);
+ print_value(object, indent, false);
+
+ return true;
+}
+
+static
+void print_value(struct bt_value *value, size_t indent, bool do_indent)
+{
+ bool bool_val;
+ int64_t int_val;
+ double dbl_val;
+ const char *str_val;
+ int size;
+ int i;
+
+ if (!value) {
+ return;
+ }
+
+ if (do_indent) {
+ print_indent(indent);
+ }
+
+ switch (bt_value_get_type(value)) {
+ case BT_VALUE_TYPE_NULL:
+ printf("null\n");
+ break;
+ case BT_VALUE_TYPE_BOOL:
+ bt_value_bool_get(value, &bool_val);
+ printf("%s\n", bool_val ? "true" : "false");
+ break;
+ case BT_VALUE_TYPE_INTEGER:
+ bt_value_integer_get(value, &int_val);
+ printf("%" PRId64 "\n", int_val);
+ break;
+ case BT_VALUE_TYPE_FLOAT:
+ bt_value_float_get(value, &dbl_val);
+ printf("%lf\n", dbl_val);
+ break;
+ case BT_VALUE_TYPE_STRING:
+ bt_value_string_get(value, &str_val);
+ printf("\"%s\"\n", str_val);
+ break;
+ case BT_VALUE_TYPE_ARRAY:
+ size = bt_value_array_size(value);
+ printf("[\n");
+
+ for (i = 0; i < size; i++) {
+ struct bt_value *element =
+ bt_value_array_get(value, i);
+
+ print_value(element, indent + 2, true);
+ BT_PUT(element);
+ }
+
+ print_indent(indent);
+ printf("]\n");
+ break;
+ case BT_VALUE_TYPE_MAP:
+ if (bt_value_map_is_empty(value)) {
+ printf("{}\n");
+ return;
+ }
+
+ printf("{\n");
+ bt_value_map_foreach(value, print_map_value,
+ (void *) (indent + 2));
+ print_indent(indent);
+ printf("}\n");
+ break;
+ default:
+ assert(false);
+ }
+}
+
+static
+void print_bt_config_component(struct bt_config_component *bt_config_component)
+{
+ printf(" %s.%s\n", bt_config_component->plugin_name->str,
+ bt_config_component->component_name->str);
+ printf(" params:\n");
+ print_value(bt_config_component->params, 6, true);
+}
+
+static
+void print_bt_config_components(GPtrArray *array)
+{
+ size_t i;
+
+ for (i = 0; i < array->len; i++) {
+ struct bt_config_component *cfg_component =
+ bt_config_get_component(array, i);
+ print_bt_config_component(cfg_component);
+ BT_PUT(cfg_component);
+ }
+}
+
+static
+void print_cfg(struct bt_config *cfg)
+{
+ printf("debug: %d\n", cfg->debug);
+ printf("verbose: %d\n", cfg->verbose);
+ printf("do list: %d\n", cfg->do_list);
+ printf("force correlate: %d\n", cfg->force_correlate);
+ printf("plugin paths:\n");
+ print_value(cfg->plugin_paths, 2, true);
+ printf("sources:\n");
+ print_bt_config_components(cfg->sources);
+ printf("sinks:\n");
+ print_bt_config_components(cfg->sinks);
+}
+
+static
+struct bt_component *create_trimmer(struct bt_config_component *source_cfg)
+{
+ struct bt_component *trimmer = NULL;
+ struct bt_component_class *trimmer_class = NULL;
+ struct bt_value *trimmer_params = NULL;
+ struct bt_value *value;
+
+ assert(component_factory);
+ trimmer_params = bt_value_map_create();
+ if (!trimmer_params) {
+ goto end;
+ }
+
+ value = bt_value_map_get(source_cfg->params, "begin");
+ if (value) {
+ enum bt_value_status ret;
+
+ ret = bt_value_map_insert(trimmer_params, "begin",
+ value);
+ BT_PUT(value);
+ if (ret) {
+ goto end;
+ }
+ }
+ value = bt_value_map_get(source_cfg->params, "end");
+ if (value) {
+ enum bt_value_status ret;
+
+ ret = bt_value_map_insert(trimmer_params, "end",
+ value);
+ BT_PUT(value);
+ if (ret) {
+ goto end;
+ }
+ }
+ value = bt_value_map_get(source_cfg->params, "clock-gmt");
+ if (value) {
+ enum bt_value_status ret;
+
+ ret = bt_value_map_insert(trimmer_params, "clock-gmt",
+ value);
+ BT_PUT(value);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ trimmer_class = bt_component_factory_get_component_class(
+ component_factory, "utils", BT_COMPONENT_TYPE_FILTER,
+ "trimmer");
+ if (!trimmer_class) {
+ fprintf(stderr, "Could not find trimmer component class. Aborting...\n");
+ goto end;
+ }
+ trimmer = bt_component_create(trimmer_class, "source_trimmer",
+ trimmer_params);
+ if (!trimmer) {
+ goto end;
+ }
+end:
+ bt_put(trimmer_params);
+ bt_put(trimmer_class);
+ return trimmer;
+}
+
+static
+int connect_source_sink(struct bt_component *source,
+ struct bt_config_component *source_cfg,
+ struct bt_component *sink)
+{
+ int ret = 0;
+ enum bt_component_status sink_status;
+ struct bt_component *trimmer = NULL;
+ struct bt_notification_iterator *source_it = NULL;
+ struct bt_notification_iterator *to_sink_it = NULL;
+
+ source_it = bt_component_source_create_iterator(source);
+ if (!source_it) {
+ fprintf(stderr, "Failed to instantiate source iterator. Aborting...\n");
+ ret = -1;
+ goto end;
+ }
+
+ if (bt_value_map_has_key(source_cfg->params, "begin")
+ || bt_value_map_has_key(source_cfg->params, "end")) {
+ /* A trimmer must be inserted in the graph. */
+ enum bt_component_status trimmer_status;
+
+ trimmer = create_trimmer(source_cfg);
+ if (!trimmer) {
+ fprintf(stderr, "Failed to create trimmer component. Aborting...\n");
+ ret = -1;
+ goto end;
+ }
+
+ trimmer_status = bt_component_filter_add_iterator(trimmer,
+ source_it);
+ BT_PUT(source_it);
+ if (trimmer_status != BT_COMPONENT_STATUS_OK) {
+ fprintf(stderr, "Failed to connect source to trimmer. Aborting...\n");
+ ret = -1;
+ goto end;
+ }
+
+ to_sink_it = bt_component_filter_create_iterator(trimmer);
+ if (!to_sink_it) {
+ fprintf(stderr, "Failed to instantiate trimmer iterator. Aborting...\n");
+ ret = -1;
+ goto end;
+ }
+ } else {
+ BT_MOVE(to_sink_it, source_it);
+ }
+
+ sink_status = bt_component_sink_add_iterator(sink, to_sink_it);
+ if (sink_status != BT_COMPONENT_STATUS_OK) {
+ fprintf(stderr, "Failed to connect to sink component. Aborting...\n");
+ ret = -1;
+ goto end;
+ }
+end:
+ bt_put(trimmer);
+ bt_put(source_it);
+ bt_put(to_sink_it);
+ return ret;
+}
+
+static int load_plugins(struct bt_config *cfg)
{
+ int nr_paths, i;
+
+ nr_paths = bt_value_array_size(cfg->plugin_paths);
+ if (nr_paths < 0) {
+ return -1;
+ }
+ for (i = 0; i < nr_paths; i++) {
+ struct bt_value *plugin_path_value = NULL;
+ const char *plugin_path;
+
+ plugin_path_value = bt_value_array_get(cfg->plugin_paths, i);
+ if (bt_value_string_get(plugin_path_value,
+ &plugin_path)) {
+ BT_PUT(plugin_path_value);
+ continue;
+ }
+ if (bt_component_factory_load_recursive(component_factory,
+ plugin_path)) {
+ printf_debug("Unable to dynamically load plugins from path %s.\n",
+ plugin_path);
+ }
+ BT_PUT(plugin_path_value);
+ }
return 0;
}
+
+int main(int argc, const char **argv)
+{
+ int ret;
+ struct bt_component_class *source_class = NULL;
+ struct bt_component_class *sink_class = NULL;
+ struct bt_component *source = NULL, *sink = NULL;
+ struct bt_value *source_params = NULL, *sink_params = NULL;
+ struct bt_config *cfg;
+ enum bt_component_status sink_status;
+ struct bt_config_component *source_cfg = NULL, *sink_cfg = NULL;
+
+ cfg = bt_config_create();
+ if (!cfg) {
+ fprintf(stderr, "Failed to create Babeltrace configuration\n");
+ ret = 1;
+ goto end;
+ }
+
+ ret = set_default_config(cfg);
+ if (ret) {
+ goto end;
+ }
+
+ ret = bt_config_init_from_args(cfg, argc, argv);
+ if (ret == 0) {
+ print_cfg(cfg);
+ } else {
+ goto end;
+ }
+
+ babeltrace_verbose = cfg->verbose;
+ babeltrace_debug = cfg->debug;
+
+ /* TODO handle more than 1 source and 1 sink. */
+ if (cfg->sources->len != 1 || cfg->sinks->len != 1) {
+ fprintf(stderr, "Unexpected configuration, aborting...\n");
+ ret = -1;
+ goto end;
+ }
+
+ printf_verbose("Verbose mode active.\n");
+ printf_debug("Debug mode active.\n");
+ component_factory = bt_component_factory_create();
+ if (!component_factory) {
+ fprintf(stderr, "Failed to create component factory.\n");
+ ret = -1;
+ goto end;
+ }
+
+ if (load_plugins(cfg)) {
+ fprintf(stderr, "Failed to load plugins.\n");
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_component_factory_load_static(component_factory);
+ if (ret) {
+ fprintf(stderr, "Failed to load static plugins.\n");
+ goto end;
+ }
+
+ print_component_classes_found(component_factory);
+
+ source_cfg = bt_config_get_component(cfg->sources, 0);
+ source_params = bt_get(source_cfg->params);
+ source_class = bt_component_factory_get_component_class(
+ component_factory, source_cfg->plugin_name->str,
+ BT_COMPONENT_TYPE_SOURCE,
+ source_cfg->component_name->str);
+ if (!source_class) {
+ fprintf(stderr, "Could not find %s.%s source component class. Aborting...\n",
+ source_cfg->plugin_name->str,
+ source_cfg->component_name->str);
+ ret = -1;
+ goto end;
+ }
+
+ sink_cfg = bt_config_get_component(cfg->sinks, 0);
+ sink_params = bt_get(sink_cfg->params);
+ sink_class = bt_component_factory_get_component_class(component_factory,
+ sink_cfg->plugin_name->str, BT_COMPONENT_TYPE_SINK,
+ sink_cfg->component_name->str);
+ if (!sink_class) {
+ fprintf(stderr, "Could not find %s.%s output component class. Aborting...\n",
+ sink_cfg->plugin_name->str,
+ sink_cfg->component_name->str);
+ ret = -1;
+ goto end;
+ }
+
+ source = bt_component_create(source_class, "source", source_params);
+ if (!source) {
+ fprintf(stderr, "Failed to instantiate selected source component. Aborting...\n");
+ ret = -1;
+ goto end;
+ }
+
+ sink = bt_component_create(sink_class, "sink", sink_params);
+ if (!sink) {
+ fprintf(stderr, "Failed to instantiate selected output component. Aborting...\n");
+ ret = -1;
+ goto end;
+ }
+
+ ret = connect_source_sink(source, source_cfg, sink);
+ if (ret) {
+ goto end;
+ }
+
+ while (true) {
+ sink_status = bt_component_sink_consume(sink);
+ switch (sink_status) {
+ case BT_COMPONENT_STATUS_AGAIN:
+ /* Wait for an arbitraty 500 ms. */
+ usleep(500000);
+ break;
+ case BT_COMPONENT_STATUS_OK:
+ break;
+ case BT_COMPONENT_STATUS_END:
+ goto end;
+ default:
+ fprintf(stderr, "Sink component returned an error, aborting...\n");
+ ret = -1;
+ goto end;
+ }
+ }
+end:
+ BT_PUT(component_factory);
+ BT_PUT(sink_class);
+ BT_PUT(source_class);
+ BT_PUT(source);
+ BT_PUT(sink);
+ BT_PUT(source_params);
+ BT_PUT(sink_params);
+ BT_PUT(cfg);
+ BT_PUT(sink_cfg);
+ BT_PUT(source_cfg);
+ return ret ? 1 : 0;
+}