*/
#include <babeltrace/babeltrace.h>
-#include <babeltrace/plugin/component-factory.h>
#include <babeltrace/plugin/plugin.h>
-#include <babeltrace/plugin/component-class.h>
+#include <babeltrace/component/component.h>
+#include <babeltrace/component/component-source.h>
+#include <babeltrace/component/component-sink.h>
+#include <babeltrace/component/component-filter.h>
+#include <babeltrace/component/component-class.h>
+#include <babeltrace/component/notification/iterator.h>
#include <babeltrace/ref.h>
#include <babeltrace/values.h>
#include <stdlib.h>
#include <popt.h>
#include <string.h>
#include <stdio.h>
+#include <glib.h>
+#include "babeltrace-cfg.h"
+#include "default-cfg.h"
+GPtrArray *loaded_plugins;
-static char *opt_plugin_path;
-
-enum {
- OPT_NONE = 0,
- OPT_PLUGIN_PATH,
- OPT_VERBOSE,
- OPT_DEBUG,
- OPT_HELP,
-};
+static
+void init_loaded_plugins_array(void)
+{
+ loaded_plugins = g_ptr_array_new_full(8, bt_put);
+}
-/*
- * We are _not_ using POPT_ARG_STRING's ability to store directly into
- * variables, because we want to cast the return to non-const, which is
- * not possible without using poptGetOptArg explicitly. This helps us
- * controlling memory allocation correctly without making assumptions
- * about undocumented behaviors. poptGetOptArg is documented as
- * requiring the returned const char * to be freed by the caller.
- */
-static struct poptOption long_options[] = {
- /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
- { "plugin-path", 0, POPT_ARG_STRING, NULL, OPT_PLUGIN_PATH, NULL, NULL },
- { "verbose", 'v', POPT_ARG_NONE, NULL, OPT_VERBOSE, NULL, NULL },
- { "debug", 'd', POPT_ARG_NONE, NULL, OPT_DEBUG, NULL, NULL },
- { NULL, 0, 0, NULL, 0, NULL, NULL },
-};
+static
+void fini_loaded_plugins_array(void)
+{
+ g_ptr_array_free(loaded_plugins, TRUE);
+}
-/*
- * Return 0 if caller should continue, < 0 if caller should return
- * error, > 0 if caller should exit without reporting error.
- */
-static int parse_options(int argc, char **argv)
+static
+struct bt_plugin *find_plugin(const char *name)
{
- poptContext pc;
- int opt, ret = 0;
+ int i;
+ struct bt_plugin *plugin = NULL;
+
+ for (i = 0; i < loaded_plugins->len; i++) {
+ plugin = g_ptr_array_index(loaded_plugins, i);
- if (argc == 1) {
- return 1; /* exit cleanly */
+ if (strcmp(name, bt_plugin_get_name(plugin)) == 0) {
+ break;
+ }
+
+ plugin = NULL;
}
- pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 0);
- poptReadDefaultConfig(pc, 0);
+ return bt_get(plugin);
+}
- /* set default */
- opt_context_field_names = 1;
- opt_payload_field_names = 1;
+static
+struct bt_component_class *find_component_class(const char *plugin_name,
+ const char *comp_class_name,
+ enum bt_component_class_type comp_class_type)
+{
+ struct bt_component_class *comp_class = NULL;
+ struct bt_plugin *plugin = find_plugin(plugin_name);
- while ((opt = poptGetNextOpt(pc)) != -1) {
- switch (opt) {
- case OPT_HELP:
- ret = 1; /* exit cleanly */
- goto end;
- case OPT_PLUGIN_PATH:
- opt_plugin_path = (char *) poptGetOptArg(pc);
- if (!opt_plugin_path) {
- ret = -EINVAL;
- goto end;
- } ;
- break;
- case OPT_VERBOSE:
- babeltrace_verbose = 1;
- break;
- case OPT_DEBUG:
- babeltrace_debug = 1;
- break;
- default:
- ret = -EINVAL;
- goto end;
- }
+ if (!plugin) {
+ goto end;
}
+ comp_class = bt_plugin_get_component_class_by_name_and_type(plugin,
+ comp_class_name, comp_class_type);
+ BT_PUT(plugin);
end:
- if (pc) {
- poptFreeContext(pc);
- }
- return ret;
+ return comp_class;
}
static
-const char *component_type_str(enum bt_component_type type)
+const char *component_type_str(enum bt_component_class_type type)
{
switch (type) {
- case BT_COMPONENT_TYPE_SOURCE:
+ case BT_COMPONENT_CLASS_TYPE_SOURCE:
return "source";
- case BT_COMPONENT_TYPE_SINK:
+ case BT_COMPONENT_CLASS_TYPE_SINK:
return "sink";
- case BT_COMPONENT_TYPE_FILTER:
+ case BT_COMPONENT_CLASS_TYPE_FILTER:
return "filter";
- case BT_COMPONENT_TYPE_UNKNOWN:
+ case BT_COMPONENT_CLASS_TYPE_UNKNOWN:
default:
return "unknown";
}
}
static
-void print_detected_component_classes(struct bt_component_factory *factory)
+void print_component_classes_found(void)
{
- int count, i;
+ int plugins_count, component_classes_count = 0, 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.");
+ plugins_count = loaded_plugins->len;
+ if (plugins_count == 0) {
+ fprintf(stderr, "No plugins 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);
- printf_verbose("\tauthor: %s\n", author);
- printf_verbose("\tlicense: %s\n", license);
- printf_verbose("\tplugin description: %s\n",
+ for (i = 0; i < plugins_count; i++) {
+ struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
+
+ component_classes_count += bt_plugin_get_component_class_count(plugin);
+ }
+
+ printf_verbose("Found %d component classes in %d plugins.\n",
+ component_classes_count, plugins_count);
+
+ for (i = 0; i < plugins_count; i++) {
+ int j;
+ struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
+ unsigned int major, minor, patch;
+ const char *extra;
+ enum bt_plugin_status version_status;
+
+ component_classes_count =
+ bt_plugin_get_component_class_count(plugin);
+ version_status = bt_plugin_get_version(plugin, &major, &minor,
+ &patch, &extra);
+
+ for (j = 0; j < component_classes_count; j++) {
+ struct bt_component_class *comp_class =
+ bt_plugin_get_component_class(plugin, j);
+ const char *plugin_name = bt_plugin_get_name(plugin);
+ const char *comp_class_name =
+ bt_component_class_get_name(comp_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 *comp_class_description =
+ bt_component_class_get_description(comp_class);
+ enum bt_component_class_type type =
+ bt_component_class_get_type(comp_class);
+
+ printf_verbose("[%s - %s (%s)]\n", plugin_name,
+ comp_class_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);
+ if (version_status == BT_PLUGIN_STATUS_OK) {
+ printf_verbose("\tplugin version: %u.%u.%u",
+ major, minor, patch);
+
+ if (extra) {
+ printf("%s", extra);
+ }
+
+ printf("\n");
+ }
+
+ printf_verbose("\tcomponent description: %s\n",
+ comp_class_description ? comp_class_description : "None");
+ bt_put(comp_class);
+ }
+ }
+}
+
+static
+void print_indent(size_t indent)
+{
+ size_t i;
+
+ for (i = 0; i < indent; i++) {
+ printf_verbose(" ");
+ }
+}
+
+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_verbose("\"%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_verbose("null\n");
+ break;
+ case BT_VALUE_TYPE_BOOL:
+ bt_value_bool_get(value, &bool_val);
+ printf_verbose("%s\n", bool_val ? "true" : "false");
+ break;
+ case BT_VALUE_TYPE_INTEGER:
+ bt_value_integer_get(value, &int_val);
+ printf_verbose("%" PRId64 "\n", int_val);
+ break;
+ case BT_VALUE_TYPE_FLOAT:
+ bt_value_float_get(value, &dbl_val);
+ printf_verbose("%lf\n", dbl_val);
+ break;
+ case BT_VALUE_TYPE_STRING:
+ bt_value_string_get(value, &str_val);
+ printf_verbose("\"%s\"\n", str_val);
+ break;
+ case BT_VALUE_TYPE_ARRAY:
+ size = bt_value_array_size(value);
+ printf_verbose("[\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_verbose("]\n");
+ break;
+ case BT_VALUE_TYPE_MAP:
+ if (bt_value_map_is_empty(value)) {
+ printf_verbose("{}\n");
+ return;
+ }
+
+ printf_verbose("{\n");
+ bt_value_map_foreach(value, print_map_value,
+ (void *) (indent + 2));
+ print_indent(indent);
+ printf_verbose("}\n");
+ break;
+ default:
+ assert(false);
}
}
static
-void test_sink_notifications(struct bt_component *sink)
+void print_bt_config_component(struct bt_config_component *bt_config_component)
{
- return;
+ printf_verbose(" %s.%s\n", bt_config_component->plugin_name->str,
+ bt_config_component->component_name->str);
+ printf_verbose(" params:\n");
+ print_value(bt_config_component->params, 6, true);
}
-int main(int argc, char **argv)
+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_verbose("debug: %d\n", cfg->debug);
+ printf_verbose("verbose: %d\n", cfg->verbose);
+ printf_verbose("do list: %d\n", cfg->do_list);
+ printf_verbose("force correlate: %d\n", cfg->force_correlate);
+ printf_verbose("plugin paths:\n");
+ print_value(cfg->plugin_paths, 2, true);
+ printf_verbose("sources:\n");
+ print_bt_config_components(cfg->sources);
+ printf_verbose("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;
+
+ 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 = find_component_class("utils", "trimmer",
+ BT_COMPONENT_CLASS_TYPE_FILTER);
+ 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_notification_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_notification_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
+void add_to_loaded_plugins(struct bt_plugin **plugins)
+{
+ while (*plugins) {
+ struct bt_plugin *plugin = *plugins;
+ /* Check if it's already loaded (from another path). */
+ struct bt_plugin *loaded_plugin =
+ find_plugin(bt_plugin_get_name(plugin));
+
+ if (loaded_plugin) {
+ printf_verbose("Not loading plugin `%s`: already loaded from `%s`\n",
+ bt_plugin_get_path(plugin),
+ bt_plugin_get_path(loaded_plugin));
+ BT_PUT(loaded_plugin);
+ BT_PUT(plugin);
+ } else {
+ /* Transfer ownership to global array. */
+ g_ptr_array_add(loaded_plugins, plugin);
+ }
+ *(plugins++) = NULL;
+ }
+}
+
+static
+int load_dynamic_plugins(struct bt_config *cfg)
+{
+ int nr_paths, i, ret = 0;
+
+ nr_paths = bt_value_array_size(cfg->plugin_paths);
+ if (nr_paths < 0) {
+ ret = -1;
+ goto end;
+ }
+
+ for (i = 0; i < nr_paths; i++) {
+ struct bt_value *plugin_path_value = NULL;
+ const char *plugin_path;
+ struct bt_plugin **plugins;
+
+ 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;
+ }
+
+ plugins = bt_plugin_create_all_from_dir(plugin_path, false);
+ if (!plugins) {
+ printf_debug("Unable to dynamically load plugins from path %s.\n",
+ plugin_path);
+ BT_PUT(plugin_path_value);
+ continue;
+ }
+
+ add_to_loaded_plugins(plugins);
+ free(plugins);
+
+ BT_PUT(plugin_path_value);
+ }
+end:
+ return ret;
+}
+
+static
+int load_static_plugins(void)
+{
+ int ret = 0;
+ struct bt_plugin **plugins;
+
+ plugins = bt_plugin_create_all_from_static();
+ if (!plugins) {
+ printf_debug("Unable to load static plugins.\n");
+ ret = -1;
+ goto end;
+ }
+
+ add_to_loaded_plugins(plugins);
+ free(plugins);
+end:
+ return ret;
+}
+
+int main(int argc, const char **argv)
{
int ret;
- struct bt_component_factory *component_factory = NULL;
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;
+
+ init_loaded_plugins_array();
- ret = parse_options(argc, argv);
- if (ret < 0) {
- fprintf(stderr, "Error parsing options.\n\n");
- exit(EXIT_FAILURE);
- } else if (ret > 0) {
- exit(EXIT_SUCCESS);
+ cfg = bt_config_create();
+ if (!cfg) {
+ fprintf(stderr, "Failed to create Babeltrace configuration\n");
+ ret = 1;
+ goto end;
}
- printf_verbose("Verbose mode active.\n");
- printf_debug("Debug mode active.\n");
+ ret = set_default_config(cfg);
+ if (ret) {
+ goto end;
+ }
+
+ ret = bt_config_init_from_args(cfg, argc, argv);
+ if (ret == 0) {
+ babeltrace_verbose = cfg->verbose;
+ babeltrace_debug = cfg->debug;
+ print_cfg(cfg);
+ } else {
+ goto end;
+ }
- if (!opt_plugin_path) {
- fprintf(stderr, "No plugin path specified, aborting...\n");
+ /* TODO handle more than 1 source and 1 sink. */
+ if (cfg->sources->len != 1 || cfg->sinks->len != 1) {
ret = -1;
goto end;
}
- printf_verbose("Looking-up plugins at %s\n",
- opt_plugin_path ? opt_plugin_path : "Invalid");
- component_factory = bt_component_factory_create();
- if (!component_factory) {
- fprintf(stderr, "Failed to create component factory.\n");
+
+ printf_verbose("Verbose mode active.\n");
+ printf_debug("Debug mode active.\n");
+
+ if (load_dynamic_plugins(cfg)) {
+ fprintf(stderr, "Failed to load dynamic plugins.\n");
ret = -1;
goto end;
}
- ret = bt_component_factory_load(component_factory, opt_plugin_path);
- if (ret) {
- fprintf(stderr, "Failed to load plugins.\n");
+ if (load_static_plugins()) {
+ fprintf(stderr, "Failed to load static plugins.\n");
goto end;
}
- print_detected_component_classes(component_factory);
+ print_component_classes_found();
+ source_cfg = bt_config_get_component(cfg->sources, 0);
+ source_params = bt_get(source_cfg->params);
+ source_class = find_component_class(source_cfg->plugin_name->str,
+ source_cfg->component_name->str,
+ BT_COMPONENT_CLASS_TYPE_SOURCE);
+ 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_class = bt_component_factory_get_component_class(component_factory,
- NULL, BT_COMPONENT_TYPE_SINK, "text");
+ sink_cfg = bt_config_get_component(cfg->sinks, 0);
+ sink_params = bt_get(sink_cfg->params);
+ sink_class = find_component_class(sink_cfg->plugin_name->str,
+ sink_cfg->component_name->str,
+ BT_COMPONENT_CLASS_TYPE_SINK);
if (!sink_class) {
- fprintf(stderr, "Could not find text output component class. Aborting...\n");
+ 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;
}
- sink = bt_component_create(sink_class, "bt_text_output", sink_params);
+ 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 instanciate text output. Aborting...\n");
+ fprintf(stderr, "Failed to instantiate selected output component. Aborting...\n");
ret = -1;
goto end;
}
- test_sink_notifications(sink);
- goto end;
+ ret = connect_source_sink(source, source_cfg, sink);
+ if (ret) {
+ goto end;
+ }
- /* teardown and exit */
+ 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);
+ fini_loaded_plugins_array();
return ret ? 1 : 0;
}
projects / babeltrace.git / blobdiff