X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=cli%2Fbabeltrace.c;h=934f9f85eda9ebecaa44c0a6f296ede10da006d2;hb=1d9f5cd6724aafdccf82c57ee0125bbc7cfb4027;hp=cb8492f2acfd9630f1b5d1feb8c8d5653ac2f075;hpb=8d77550c9ec0f0bdb483a672a676e842510bb384;p=babeltrace.git diff --git a/cli/babeltrace.c b/cli/babeltrace.c index cb8492f2..934f9f85 100644 --- a/cli/babeltrace.c +++ b/cli/babeltrace.c @@ -1,8 +1,4 @@ /* - * babeltrace.c - * - * Babeltrace Trace Converter - * * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation * * Author: Mathieu Desnoyers @@ -26,49 +22,254 @@ * SOFTWARE. */ +#define BT_LOG_TAG "CLI" +#include "logging.h" + #include -#include #include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include +#include #include #include #include #include #include #include +#include +#include #include "babeltrace-cfg.h" -#include "babeltrace-cfg-connect.h" -#include "default-cfg.h" +#include "babeltrace-cfg-cli-args.h" +#include "babeltrace-cfg-cli-args-default.h" + +#define ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH "BABELTRACE_CLI_WARN_COMMAND_NAME_DIRECTORY_CLASH" +#define ENV_BABELTRACE_CLI_LOG_LEVEL "BABELTRACE_CLI_LOG_LEVEL" +#define NSEC_PER_SEC 1000000000LL + +/* + * Known environment variable names for the log levels of the project's + * modules. + */ +static const char* log_level_env_var_names[] = { + "BABELTRACE_COMMON_LOG_LEVEL", + "BABELTRACE_COMPAT_LOG_LEVEL", + "BABELTRACE_CTFSER_LOG_LEVEL", + "BABELTRACE_FD_CACHE_LOG_LEVEL", + "BABELTRACE_FLT_LTTNG_UTILS_DEBUG_INFO_LOG_LEVEL", + "BABELTRACE_FLT_UTILS_COUNTER_LOG_LEVEL", + "BABELTRACE_FLT_UTILS_MUXER_LOG_LEVEL", + "BABELTRACE_FLT_UTILS_TRIMMER_LOG_LEVEL", + "BABELTRACE_PLUGIN_CTF_BFCR_LOG_LEVEL", + "BABELTRACE_PLUGIN_CTF_METADATA_LOG_LEVEL", + "BABELTRACE_PLUGIN_CTF_MSG_ITER_LOG_LEVEL", + "BABELTRACE_PLUGIN_CTF_UTILS_LOG_LEVEL", + "BABELTRACE_PYTHON_BT2_LOG_LEVEL", + "BABELTRACE_SINK_CTF_FS_LOG_LEVEL", + "BABELTRACE_SINK_TEXT_PRETTY_LOG_LEVEL", + "BABELTRACE_SRC_CTF_FS_LOG_LEVEL", + "BABELTRACE_SRC_CTF_LTTNG_LIVE_LOG_LEVEL", + "BABELTRACE_SRC_TEXT_DMESG_LOG_LEVEL", + NULL, +}; + +/* Application's processing graph (weak) */ +static bt_graph *the_graph; +static bt_query_executor *the_query_executor; +static bool canceled = false; GPtrArray *loaded_plugins; +#ifdef __MINGW32__ + +#include + +static +BOOL WINAPI signal_handler(DWORD signal) { + if (the_graph) { + bt_graph_cancel(the_graph); + } + + canceled = true; + + return TRUE; +} + +static +void set_signal_handler(void) +{ + if (!SetConsoleCtrlHandler(signal_handler, TRUE)) { + BT_LOGE("Failed to set the ctrl+c handler."); + } +} + +#else /* __MINGW32__ */ + +static +void signal_handler(int signum) +{ + if (signum != SIGINT) { + return; + } + + if (the_graph) { + bt_graph_cancel(the_graph); + } + + if (the_query_executor) { + bt_query_executor_cancel(the_query_executor); + } + + canceled = true; +} + static -void init_loaded_plugins_array(void) +void set_signal_handler(void) { - loaded_plugins = g_ptr_array_new_full(8, bt_put); + struct sigaction new_action, old_action; + + new_action.sa_handler = signal_handler; + sigemptyset(&new_action.sa_mask); + new_action.sa_flags = 0; + sigaction(SIGINT, NULL, &old_action); + + if (old_action.sa_handler != SIG_IGN) { + sigaction(SIGINT, &new_action, NULL); + } +} + +#endif /* __MINGW32__ */ + +static +void init_static_data(void) +{ + loaded_plugins = g_ptr_array_new_with_free_func( + (GDestroyNotify) bt_object_put_ref); } static -void fini_loaded_plugins_array(void) +void fini_static_data(void) { g_ptr_array_free(loaded_plugins, TRUE); } static -struct bt_plugin *find_plugin(const char *name) +int create_the_query_executor(void) +{ + int ret = 0; + + the_query_executor = bt_query_executor_create(); + if (!the_query_executor) { + BT_LOGE_STR("Cannot create a query executor."); + ret = -1; + } + + return ret; +} + +static +void destroy_the_query_executor(void) +{ + BT_QUERY_EXECUTOR_PUT_REF_AND_RESET(the_query_executor); +} + +static +int query(const bt_component_class *comp_cls, const char *obj, + const bt_value *params, const bt_value **user_result, + const char **fail_reason) +{ + const bt_value *result = NULL; + bt_query_executor_status status; + *fail_reason = "unknown error"; + int ret = 0; + + BT_ASSERT(fail_reason); + BT_ASSERT(user_result); + ret = create_the_query_executor(); + if (ret) { + /* create_the_query_executor() logs errors */ + goto end; + } + + if (canceled) { + BT_LOGI("Canceled by user before executing the query: " + "comp-cls-addr=%p, comp-cls-name=\"%s\", " + "query-obj=\"%s\"", comp_cls, + bt_component_class_get_name(comp_cls), obj); + *fail_reason = "canceled by user"; + goto error; + } + + while (true) { + status = bt_query_executor_query(the_query_executor, + comp_cls, obj, params, &result); + switch (status) { + case BT_QUERY_EXECUTOR_STATUS_OK: + goto ok; + case BT_QUERY_EXECUTOR_STATUS_AGAIN: + { + const uint64_t sleep_time_us = 100000; + + /* Wait 100 ms and retry */ + BT_LOGV("Got BT_QUERY_EXECUTOR_STATUS_AGAIN: sleeping: " + "time-us=%" PRIu64, sleep_time_us); + + if (usleep(sleep_time_us)) { + if (bt_query_executor_is_canceled(the_query_executor)) { + BT_LOGI("Query was canceled by user: " + "comp-cls-addr=%p, comp-cls-name=\"%s\", " + "query-obj=\"%s\"", comp_cls, + bt_component_class_get_name(comp_cls), + obj); + *fail_reason = "canceled by user"; + goto error; + } + } + + continue; + } + case BT_QUERY_EXECUTOR_STATUS_CANCELED: + *fail_reason = "canceled by user"; + goto error; + case BT_QUERY_EXECUTOR_STATUS_ERROR: + goto error; + case BT_QUERY_EXECUTOR_STATUS_INVALID_OBJECT: + *fail_reason = "invalid or unknown query object"; + goto error; + case BT_QUERY_EXECUTOR_STATUS_INVALID_PARAMS: + *fail_reason = "invalid query parameters"; + goto error; + case BT_QUERY_EXECUTOR_STATUS_UNSUPPORTED: + *fail_reason = "unsupported action"; + goto error; + case BT_QUERY_EXECUTOR_STATUS_NOMEM: + *fail_reason = "not enough memory"; + goto error; + default: + BT_LOGF("Unknown query status: status=%d", status); + abort(); + } + } + +ok: + *user_result = result; + result = NULL; + goto end; + +error: + ret = -1; + +end: + destroy_the_query_executor(); + bt_value_put_ref(result); + return ret; +} + +static +const bt_plugin *find_plugin(const char *name) { int i; - struct bt_plugin *plugin = NULL; + const bt_plugin *plugin = NULL; + + BT_ASSERT(name); + BT_LOGD("Finding plugin: name=\"%s\"", name); for (i = 0; i < loaded_plugins->len; i++) { plugin = g_ptr_array_index(loaded_plugins, i); @@ -80,77 +281,120 @@ struct bt_plugin *find_plugin(const char *name) plugin = NULL; } - return bt_get(plugin); + if (BT_LOG_ON_DEBUG) { + if (plugin) { + BT_LOGD("Found plugin: plugin-addr=%p", plugin); + } else { + BT_LOGD("Cannot find plugin."); + } + } + + bt_plugin_get_ref(plugin); + return plugin; } +typedef const void *(*plugin_borrow_comp_cls_func_t)( + const bt_plugin *, const char *); + static -struct bt_component_class *find_component_class(const char *plugin_name, +const void *find_component_class_from_plugin(const char *plugin_name, const char *comp_class_name, - enum bt_component_class_type comp_class_type) + plugin_borrow_comp_cls_func_t plugin_borrow_comp_cls_func) { - struct bt_component_class *comp_class = NULL; - struct bt_plugin *plugin = find_plugin(plugin_name); + const void *comp_class = NULL; + const bt_plugin *plugin; + + BT_LOGD("Finding component class: plugin-name=\"%s\", " + "comp-cls-name=\"%s\"", plugin_name, comp_class_name); + plugin = find_plugin(plugin_name); 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); + comp_class = plugin_borrow_comp_cls_func(plugin, comp_class_name); + bt_object_get_ref(comp_class); + BT_PLUGIN_PUT_REF_AND_RESET(plugin); + end: + if (BT_LOG_ON_DEBUG) { + if (comp_class) { + BT_LOGD("Found component class: comp-cls-addr=%p", + comp_class); + } else { + BT_LOGD("Cannot find source component class."); + } + } + return comp_class; } static -void print_indent(size_t indent) +const bt_component_class_source *find_source_component_class( + const char *plugin_name, const char *comp_class_name) { - size_t i; + return (const void *) find_component_class_from_plugin( + plugin_name, comp_class_name, + (plugin_borrow_comp_cls_func_t) + bt_plugin_borrow_source_component_class_by_name_const); +} - for (i = 0; i < indent; i++) { - printf(" "); - } +static +const bt_component_class_filter *find_filter_component_class( + const char *plugin_name, const char *comp_class_name) +{ + return (const void *) find_component_class_from_plugin( + plugin_name, comp_class_name, + (plugin_borrow_comp_cls_func_t) + bt_plugin_borrow_filter_component_class_by_name_const); } -static char *escape_name_for_shell(const char *input) +static +const bt_component_class_sink *find_sink_component_class( + const char *plugin_name, const char *comp_class_name) { - char *output = g_malloc0(strlen(input) * 5 + 1); - const char *in; - char *out = output; + return (const void *) find_component_class_from_plugin(plugin_name, + comp_class_name, + (plugin_borrow_comp_cls_func_t) + bt_plugin_borrow_sink_component_class_by_name_const); +} - if (!output) { - goto end; - } +static +const bt_component_class *find_component_class(const char *plugin_name, + const char *comp_class_name, + bt_component_class_type comp_class_type) +{ + const bt_component_class *comp_cls = NULL; - for (in = input; *in != '\0'; in++) { - switch (*in) { - case '\\': - *out++ = '\\'; - *out++ = '\\'; - break; - case '\'': - *out++ = '\''; - *out++ = '"'; - *out++ = '\''; - *out++ = '"'; - *out++ = '\''; - break; - case '.': - *out++ = '\\'; - *out++ = '.'; - break; - default: - *out++ = *in; - break; - } + switch (comp_class_type) { + case BT_COMPONENT_CLASS_TYPE_SOURCE: + comp_cls = bt_component_class_source_as_component_class_const(find_source_component_class(plugin_name, comp_class_name)); + break; + case BT_COMPONENT_CLASS_TYPE_FILTER: + comp_cls = bt_component_class_filter_as_component_class_const(find_filter_component_class(plugin_name, comp_class_name)); + break; + case BT_COMPONENT_CLASS_TYPE_SINK: + comp_cls = bt_component_class_sink_as_component_class_const(find_sink_component_class(plugin_name, comp_class_name)); + break; + default: + abort(); } -end: - return output; + return comp_cls; +} + +static +void print_indent(FILE *fp, size_t indent) +{ + size_t i; + + for (i = 0; i < indent; i++) { + fprintf(fp, " "); + } } static -const char *component_type_str(enum bt_component_class_type type) +const char *component_type_str(bt_component_class_type type) { switch (type) { case BT_COMPONENT_CLASS_TYPE_SOURCE: @@ -159,87 +403,99 @@ const char *component_type_str(enum bt_component_class_type type) return "sink"; case BT_COMPONENT_CLASS_TYPE_FILTER: return "filter"; - case BT_COMPONENT_CLASS_TYPE_UNKNOWN: default: - return "unknown"; + return "(unknown)"; } } -static void print_plugin_comp_cls_opt(FILE *fh, const char *plugin_name, - const char *comp_cls_name, enum bt_component_class_type type) +static +void print_plugin_comp_cls_opt(FILE *fh, const char *plugin_name, + const char *comp_cls_name, bt_component_class_type type) { - char *shell_plugin_name = NULL; - char *shell_comp_cls_name = NULL; + GString *shell_plugin_name = NULL; + GString *shell_comp_cls_name = NULL; - shell_plugin_name = escape_name_for_shell(plugin_name); + shell_plugin_name = bt_common_shell_quote(plugin_name, false); if (!shell_plugin_name) { goto end; } - shell_comp_cls_name = escape_name_for_shell(comp_cls_name); + shell_comp_cls_name = bt_common_shell_quote(comp_cls_name, false); if (!shell_comp_cls_name) { goto end; } - fprintf(fh, "%s%s--%s%s %s'%s%s%s%s.%s%s%s'", + fprintf(fh, "'%s%s%s%s.%s%s%s.%s%s%s'", bt_common_color_bold(), bt_common_color_fg_cyan(), component_type_str(type), - bt_common_color_reset(), bt_common_color_fg_default(), - bt_common_color_bold(), bt_common_color_fg_blue(), - shell_plugin_name, + shell_plugin_name->str, bt_common_color_fg_default(), bt_common_color_fg_yellow(), - shell_comp_cls_name, + shell_comp_cls_name->str, bt_common_color_reset()); end: - g_free(shell_plugin_name); - g_free(shell_comp_cls_name); + if (shell_plugin_name) { + g_string_free(shell_plugin_name, TRUE); + } + + if (shell_comp_cls_name) { + g_string_free(shell_comp_cls_name, TRUE); + } } static -void print_value(struct bt_value *, size_t); +void print_value(FILE *, const bt_value *, size_t); static -void print_value_rec(struct bt_value *, size_t); +void print_value_rec(FILE *, const bt_value *, size_t); + +struct print_map_value_data { + size_t indent; + FILE *fp; +}; static -bool print_map_value(const char *key, struct bt_value *object, void *data) +bt_bool print_map_value(const char *key, const bt_value *object, + void *data) { - size_t *indent = data; + struct print_map_value_data *print_map_value_data = data; - print_indent(*indent); - printf("%s: ", key); + print_indent(print_map_value_data->fp, print_map_value_data->indent); + fprintf(print_map_value_data->fp, "%s: ", key); + BT_ASSERT(object); if (bt_value_is_array(object) && bt_value_array_is_empty(object)) { - printf("[ ]\n"); + fprintf(print_map_value_data->fp, "[ ]\n"); return true; } if (bt_value_is_map(object) && bt_value_map_is_empty(object)) { - printf("{ }\n"); + fprintf(print_map_value_data->fp, "{ }\n"); return true; } if (bt_value_is_array(object) || bt_value_is_map(object)) { - printf("\n"); + fprintf(print_map_value_data->fp, "\n"); } - print_value_rec(object, *indent + 2); - return true; + print_value_rec(print_map_value_data->fp, object, + print_map_value_data->indent + 2); + return BT_TRUE; } static -void print_value_rec(struct bt_value *value, size_t indent) +void print_value_rec(FILE *fp, const bt_value *value, size_t indent) { - bool bool_val; + bt_bool bool_val; int64_t int_val; + uint64_t uint_val; double dbl_val; const char *str_val; int size; @@ -251,112 +507,134 @@ void print_value_rec(struct bt_value *value, size_t indent) switch (bt_value_get_type(value)) { case BT_VALUE_TYPE_NULL: - printf("%snull%s\n", bt_common_color_bold(), + fprintf(fp, "%snull%s\n", bt_common_color_bold(), bt_common_color_reset()); break; case BT_VALUE_TYPE_BOOL: - bt_value_bool_get(value, &bool_val); - printf("%s%s%s%s\n", bt_common_color_bold(), + bool_val = bt_value_bool_get(value); + fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(), bt_common_color_fg_cyan(), bool_val ? "yes" : "no", bt_common_color_reset()); break; - case BT_VALUE_TYPE_INTEGER: - bt_value_integer_get(value, &int_val); - printf("%s%s%" PRId64 "%s\n", bt_common_color_bold(), + case BT_VALUE_TYPE_UNSIGNED_INTEGER: + uint_val = bt_value_unsigned_integer_get(value); + fprintf(fp, "%s%s%" PRIu64 "%s\n", bt_common_color_bold(), + bt_common_color_fg_red(), uint_val, + bt_common_color_reset()); + break; + case BT_VALUE_TYPE_SIGNED_INTEGER: + int_val = bt_value_signed_integer_get(value); + fprintf(fp, "%s%s%" PRId64 "%s\n", bt_common_color_bold(), bt_common_color_fg_red(), int_val, bt_common_color_reset()); break; - case BT_VALUE_TYPE_FLOAT: - bt_value_float_get(value, &dbl_val); - printf("%s%s%lf%s\n", bt_common_color_bold(), + case BT_VALUE_TYPE_REAL: + dbl_val = bt_value_real_get(value); + fprintf(fp, "%s%s%lf%s\n", bt_common_color_bold(), bt_common_color_fg_red(), dbl_val, bt_common_color_reset()); break; case BT_VALUE_TYPE_STRING: - bt_value_string_get(value, &str_val); - printf("%s%s%s%s\n", bt_common_color_bold(), + str_val = bt_value_string_get(value); + fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(), bt_common_color_fg_green(), str_val, bt_common_color_reset()); break; case BT_VALUE_TYPE_ARRAY: - size = bt_value_array_size(value); - assert(size >= 0); + size = bt_value_array_get_size(value); + if (size < 0) { + goto error; + } if (size == 0) { - print_indent(indent); - printf("[ ]\n"); + print_indent(fp, indent); + fprintf(fp, "[ ]\n"); break; } for (i = 0; i < size; i++) { - struct bt_value *element = - bt_value_array_get(value, i); + const bt_value *element = + bt_value_array_borrow_element_by_index_const( + value, i); - assert(element); - print_indent(indent); - printf("- "); + if (!element) { + goto error; + } + print_indent(fp, indent); + fprintf(fp, "- "); if (bt_value_is_array(element) && bt_value_array_is_empty(element)) { - printf("[ ]\n"); + fprintf(fp, "[ ]\n"); continue; } if (bt_value_is_map(element) && bt_value_map_is_empty(element)) { - printf("{ }\n"); + fprintf(fp, "{ }\n"); continue; } if (bt_value_is_array(element) || bt_value_is_map(element)) { - printf("\n"); + fprintf(fp, "\n"); } - print_value_rec(element, indent + 2); - BT_PUT(element); + print_value_rec(fp, element, indent + 2); } break; case BT_VALUE_TYPE_MAP: + { + struct print_map_value_data data = { + .indent = indent, + .fp = fp, + }; + if (bt_value_map_is_empty(value)) { - print_indent(indent); - printf("{ }\n"); + print_indent(fp, indent); + fprintf(fp, "{ }\n"); break; } - bt_value_map_foreach(value, print_map_value, &indent); + bt_value_map_foreach_entry_const(value, print_map_value, &data); break; + } default: - assert(false); + abort(); } + return; + +error: + BT_LOGE("Error printing value of type %s.", + bt_common_value_type_string(bt_value_get_type(value))); } static -void print_value(struct bt_value *value, size_t indent) +void print_value(FILE *fp, const bt_value *value, size_t indent) { if (!bt_value_is_array(value) && !bt_value_is_map(value)) { - print_indent(indent); + print_indent(fp, indent); } - print_value_rec(value, indent); + print_value_rec(fp, value, indent); } static void print_bt_config_component(struct bt_config_component *bt_config_component) { - printf(" "); - print_plugin_comp_cls_opt(stdout, bt_config_component->plugin_name->str, + fprintf(stderr, " "); + print_plugin_comp_cls_opt(stderr, bt_config_component->plugin_name->str, bt_config_component->comp_cls_name->str, bt_config_component->type); - printf(":\n"); + fprintf(stderr, ":\n"); if (bt_config_component->instance_name->len > 0) { - printf(" Name: %s\n", + fprintf(stderr, " Name: %s\n", bt_config_component->instance_name->str); } - printf(" Parameters:\n"); - print_value(bt_config_component->params, 8); + fprintf(stderr, " Parameters:\n"); + print_value(stderr, bt_config_component->params, 8); } static @@ -368,15 +646,15 @@ void print_bt_config_components(GPtrArray *array) struct bt_config_component *cfg_component = bt_config_get_component(array, i); print_bt_config_component(cfg_component); - BT_PUT(cfg_component); + BT_OBJECT_PUT_REF_AND_RESET(cfg_component); } } static -void print_plugin_paths(struct bt_value *plugin_paths) +void print_plugin_paths(const bt_value *plugin_paths) { - printf(" Plugin paths:\n"); - print_value(plugin_paths, 4); + fprintf(stderr, " Plugin paths:\n"); + print_value(stderr, plugin_paths, 4); } static @@ -385,30 +663,30 @@ void print_cfg_run(struct bt_config *cfg) size_t i; print_plugin_paths(cfg->plugin_paths); - printf(" Source component instances:\n"); + fprintf(stderr, " Source component instances:\n"); print_bt_config_components(cfg->cmd_data.run.sources); if (cfg->cmd_data.run.filters->len > 0) { - printf(" Filter component instances:\n"); + fprintf(stderr, " Filter component instances:\n"); print_bt_config_components(cfg->cmd_data.run.filters); } - printf(" Sink component instances:\n"); + fprintf(stderr, " Sink component instances:\n"); print_bt_config_components(cfg->cmd_data.run.sinks); - printf(" Connections:\n"); + fprintf(stderr, " Connections:\n"); for (i = 0; i < cfg->cmd_data.run.connections->len; i++) { struct bt_config_connection *cfg_connection = g_ptr_array_index(cfg->cmd_data.run.connections, i); - printf(" %s%s%s -> %s%s%s\n", - cfg_connection->src_instance_name->str, - cfg_connection->src_port_name->len > 0 ? "." : "", - cfg_connection->src_port_name->str, - cfg_connection->dst_instance_name->str, - cfg_connection->dst_port_name->len > 0 ? "." : "", - cfg_connection->dst_port_name->str); + fprintf(stderr, " %s%s%s -> %s%s%s\n", + cfg_connection->upstream_comp_name->str, + cfg_connection->upstream_port_glob->len > 0 ? "." : "", + cfg_connection->upstream_port_glob->str, + cfg_connection->downstream_comp_name->str, + cfg_connection->downstream_port_glob->len > 0 ? "." : "", + cfg_connection->downstream_port_glob->str); } } @@ -428,35 +706,37 @@ static void print_cfg_print_ctf_metadata(struct bt_config *cfg) { print_plugin_paths(cfg->plugin_paths); - printf(" Path: %s\n", cfg->cmd_data.print_ctf_metadata.path->str); + fprintf(stderr, " Path: %s\n", + cfg->cmd_data.print_ctf_metadata.path->str); } static void print_cfg_print_lttng_live_sessions(struct bt_config *cfg) { print_plugin_paths(cfg->plugin_paths); - printf(" URL: %s\n", cfg->cmd_data.print_lttng_live_sessions.url->str); + fprintf(stderr, " URL: %s\n", + cfg->cmd_data.print_lttng_live_sessions.url->str); } static void print_cfg_query(struct bt_config *cfg) { print_plugin_paths(cfg->plugin_paths); - printf(" Object: `%s`\n", cfg->cmd_data.query.object->str); - printf(" Component class:\n"); + fprintf(stderr, " Object: `%s`\n", cfg->cmd_data.query.object->str); + fprintf(stderr, " Component class:\n"); print_bt_config_component(cfg->cmd_data.query.cfg_component); } static void print_cfg(struct bt_config *cfg) { - if (!babeltrace_verbose) { + if (!BT_LOG_ON_INFO) { return; } - printf("Configuration:\n"); - printf(" Debug mode: %s\n", cfg->debug ? "yes" : "no"); - printf(" Verbose mode: %s\n", cfg->verbose ? "yes" : "no"); + BT_LOGI_STR("Configuration:"); + fprintf(stderr, " Debug mode: %s\n", cfg->debug ? "yes" : "no"); + fprintf(stderr, " Verbose mode: %s\n", cfg->verbose ? "yes" : "no"); switch (cfg->command) { case BT_CONFIG_COMMAND_RUN: @@ -478,211 +758,89 @@ void print_cfg(struct bt_config *cfg) print_cfg_print_lttng_live_sessions(cfg); break; default: - assert(false); - } -} - -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; - } + abort(); } - 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_graph *graph, - struct bt_component *source, - struct bt_config_component *source_cfg, - struct bt_component *sink) +void add_to_loaded_plugins(const bt_plugin_set *plugin_set) { - int ret = 0; - struct bt_connection *connection = NULL; - struct bt_component *trimmer = NULL; - struct bt_port *source_port = - bt_component_source_get_default_output_port(source); - struct bt_port *sink_port = - bt_component_sink_get_default_input_port(sink); - struct bt_port *to_sink_port = NULL; - struct bt_port *trimmer_input_port = NULL; - - if (!source_port) { - fprintf(stderr, "Failed to find default source output port. Aborting...\n"); - ret = -1; - goto end; - } - if (!sink_port) { - fprintf(stderr, "Failed to find default sink input port. 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. */ - trimmer = create_trimmer(source_cfg); - if (!trimmer) { - fprintf(stderr, "Failed to create trimmer component. Aborting...\n"); - ret = -1; - goto end; - } - - trimmer_input_port = bt_component_filter_get_default_input_port( - trimmer); - if (!trimmer_input_port) { - fprintf(stderr, "Failed to find trimmer input port. Aborting...\n"); - ret = -1; - goto end; - } - to_sink_port = bt_component_filter_get_default_output_port( - trimmer); - if (!to_sink_port) { - fprintf(stderr, "Failed to find trimmer output port. Aborting...\n"); - ret = -1; - goto end; - } + int64_t i; + int64_t count; - connection = bt_graph_connect_ports(graph, source_port, - trimmer_input_port); - if (!connection) { - fprintf(stderr, "Failed to connect source to trimmer. Aborting...\n"); - ret = -1; - goto end; - } - BT_PUT(connection); - } else { - BT_MOVE(to_sink_port, source_port); - } + count = bt_plugin_set_get_plugin_count(plugin_set); + BT_ASSERT(count >= 0); - connection = bt_graph_connect_ports(graph, to_sink_port, sink_port); - if (!connection) { - fprintf(stderr, "Failed to connect to sink. Aborting...\n"); - ret = -1; - goto end; - } -end: - bt_put(trimmer); - bt_put(source_port); - bt_put(sink_port); - bt_put(to_sink_port); - bt_put(connection); - return ret; -} + for (i = 0; i < count; i++) { + const bt_plugin *plugin = + bt_plugin_set_borrow_plugin_by_index_const(plugin_set, i); + const bt_plugin *loaded_plugin = + find_plugin(bt_plugin_get_name(plugin)); -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)); + BT_ASSERT(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); + BT_LOGI("Not using plugin: another one already exists with the same name: " + "plugin-name=\"%s\", plugin-path=\"%s\", " + "existing-plugin-path=\"%s\"", + bt_plugin_get_name(plugin), + bt_plugin_get_path(plugin), + bt_plugin_get_path(loaded_plugin)); + bt_plugin_put_ref(loaded_plugin); } else { - /* Transfer ownership to global array. */ - g_ptr_array_add(loaded_plugins, plugin); + /* Add to global array. */ + BT_LOGD("Adding plugin to loaded plugins: plugin-path=\"%s\"", + bt_plugin_get_name(plugin)); + bt_plugin_get_ref(plugin); + g_ptr_array_add(loaded_plugins, (void *) plugin); } - *(plugins++) = NULL; } } static -int load_dynamic_plugins(struct bt_value *plugin_paths) +int load_dynamic_plugins(const bt_value *plugin_paths) { int nr_paths, i, ret = 0; - nr_paths = bt_value_array_size(plugin_paths); + nr_paths = bt_value_array_get_size(plugin_paths); if (nr_paths < 0) { + BT_LOGE_STR("Cannot load dynamic plugins: no plugin path."); ret = -1; goto end; } + BT_LOGI("Loading dynamic plugins."); + for (i = 0; i < nr_paths; i++) { - struct bt_value *plugin_path_value = NULL; + const bt_value *plugin_path_value = NULL; const char *plugin_path; - struct bt_plugin **plugins; - - plugin_path_value = bt_value_array_get(plugin_paths, i); - if (bt_value_string_get(plugin_path_value, - &plugin_path)) { - BT_PUT(plugin_path_value); + const bt_plugin_set *plugin_set; + + plugin_path_value = + bt_value_array_borrow_element_by_index_const( + plugin_paths, i); + plugin_path = bt_value_string_get(plugin_path_value); + + /* + * Skip this if the directory does not exist because + * bt_plugin_find_all_from_dir() expects an existing + * directory. + */ + if (!g_file_test(plugin_path, G_FILE_TEST_IS_DIR)) { + BT_LOGV("Skipping nonexistent directory path: " + "path=\"%s\"", plugin_path); 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_set = bt_plugin_find_all_from_dir(plugin_path, false); + if (!plugin_set) { + BT_LOGD("Unable to load dynamic plugins: path=\"%s\"", plugin_path); - BT_PUT(plugin_path_value); continue; } - add_to_loaded_plugins(plugins); - free(plugins); - - BT_PUT(plugin_path_value); + add_to_loaded_plugins(plugin_set); + bt_plugin_set_put_ref(plugin_set); } end: return ret; @@ -692,46 +850,49 @@ static int load_static_plugins(void) { int ret = 0; - struct bt_plugin **plugins; + const bt_plugin_set *plugin_set; - plugins = bt_plugin_create_all_from_static(); - if (!plugins) { - printf_debug("Unable to load static plugins.\n"); + BT_LOGI("Loading static plugins."); + plugin_set = bt_plugin_find_all_from_static(); + if (!plugin_set) { + BT_LOGE("Unable to load static plugins."); ret = -1; goto end; } - add_to_loaded_plugins(plugins); - free(plugins); + add_to_loaded_plugins(plugin_set); + bt_plugin_set_put_ref(plugin_set); end: return ret; } -static int load_all_plugins(struct bt_value *plugin_paths) +static +int load_all_plugins(const bt_value *plugin_paths) { int ret = 0; if (load_dynamic_plugins(plugin_paths)) { - fprintf(stderr, "Failed to load dynamic plugins.\n"); ret = -1; goto end; } if (load_static_plugins()) { - fprintf(stderr, "Failed to load static plugins.\n"); ret = -1; goto end; } + BT_LOGI("Loaded all plugins: count=%u", loaded_plugins->len); + end: return ret; } -static void print_plugin_info(struct bt_plugin *plugin) +static +void print_plugin_info(const bt_plugin *plugin) { unsigned int major, minor, patch; const char *extra; - enum bt_plugin_status version_status; + bt_property_availability version_avail; const char *plugin_name; const char *path; const char *author; @@ -743,15 +904,19 @@ static void print_plugin_info(struct bt_plugin *plugin) author = bt_plugin_get_author(plugin); license = bt_plugin_get_license(plugin); plugin_description = bt_plugin_get_description(plugin); - version_status = bt_plugin_get_version(plugin, &major, &minor, + version_avail = bt_plugin_get_version(plugin, &major, &minor, &patch, &extra); printf("%s%s%s%s:\n", bt_common_color_bold(), bt_common_color_fg_blue(), plugin_name, bt_common_color_reset()); - printf(" %sPath%s: %s\n", bt_common_color_bold(), - bt_common_color_reset(), path ? path : "(None)"); + if (path) { + printf(" %sPath%s: %s\n", bt_common_color_bold(), + bt_common_color_reset(), path); + } else { + puts(" Built-in"); + } - if (version_status == BT_PLUGIN_STATUS_OK) { + if (version_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { printf(" %sVersion%s: %u.%u.%u", bt_common_color_bold(), bt_common_color_reset(), major, minor, patch); @@ -773,21 +938,24 @@ static void print_plugin_info(struct bt_plugin *plugin) license ? license : "(Unknown)"); } -static int cmd_query(struct bt_config *cfg) +static +int cmd_query(struct bt_config *cfg) { - int ret; - struct bt_component_class *comp_cls = NULL; - struct bt_value *results = NULL; - - ret = load_all_plugins(cfg->plugin_paths); - if (ret) { - goto end; - } + int ret = 0; + const bt_component_class *comp_cls = NULL; + const bt_value *results = NULL; + const char *fail_reason = NULL; - comp_cls = find_component_class(cfg->cmd_data.query.cfg_component->plugin_name->str, + comp_cls = find_component_class( + cfg->cmd_data.query.cfg_component->plugin_name->str, cfg->cmd_data.query.cfg_component->comp_cls_name->str, cfg->cmd_data.query.cfg_component->type); if (!comp_cls) { + BT_LOGE("Cannot find component class: plugin-name=\"%s\", " + "comp-cls-name=\"%s\", comp-cls-type=%d", + cfg->cmd_data.query.cfg_component->plugin_name->str, + cfg->cmd_data.query.cfg_component->comp_cls_name->str, + cfg->cmd_data.query.cfg_component->type); fprintf(stderr, "%s%sCannot find component class %s", bt_common_color_bold(), bt_common_color_fg_red(), @@ -801,48 +969,81 @@ static int cmd_query(struct bt_config *cfg) goto end; } - results = bt_component_class_query(comp_cls, - cfg->cmd_data.query.object->str, - cfg->cmd_data.query.cfg_component->params); - if (!results) { - fprintf(stderr, "%s%sFailed to query info to %s", - bt_common_color_bold(), - bt_common_color_fg_red(), - bt_common_color_reset()); - print_plugin_comp_cls_opt(stderr, - cfg->cmd_data.query.cfg_component->plugin_name->str, - cfg->cmd_data.query.cfg_component->comp_cls_name->str, - cfg->cmd_data.query.cfg_component->type); - fprintf(stderr, "%s%s with object `%s`%s\n", - bt_common_color_bold(), - bt_common_color_fg_red(), - cfg->cmd_data.query.object->str, - bt_common_color_reset()); - ret = -1; - goto end; + ret = query(comp_cls, cfg->cmd_data.query.object->str, + cfg->cmd_data.query.cfg_component->params, + &results, &fail_reason); + if (ret) { + goto failed; } - print_value(results, 0); + print_value(stdout, results, 0); + goto end; + +failed: + BT_LOGE("Failed to query component class: %s: plugin-name=\"%s\", " + "comp-cls-name=\"%s\", comp-cls-type=%d " + "object=\"%s\"", fail_reason, + cfg->cmd_data.query.cfg_component->plugin_name->str, + cfg->cmd_data.query.cfg_component->comp_cls_name->str, + cfg->cmd_data.query.cfg_component->type, + cfg->cmd_data.query.object->str); + fprintf(stderr, "%s%sFailed to query info to %s", + bt_common_color_bold(), + bt_common_color_fg_red(), + bt_common_color_reset()); + print_plugin_comp_cls_opt(stderr, + cfg->cmd_data.query.cfg_component->plugin_name->str, + cfg->cmd_data.query.cfg_component->comp_cls_name->str, + cfg->cmd_data.query.cfg_component->type); + fprintf(stderr, "%s%s with object `%s`: %s%s\n", + bt_common_color_bold(), + bt_common_color_fg_red(), + cfg->cmd_data.query.object->str, + fail_reason, + bt_common_color_reset()); + ret = -1; end: - bt_put(comp_cls); - bt_put(results); + bt_component_class_put_ref(comp_cls); + bt_value_put_ref(results); return ret; } -static int cmd_help(struct bt_config *cfg) +static +void print_component_class_help(const char *plugin_name, + const bt_component_class *comp_cls) { - int ret; - struct bt_plugin *plugin = NULL; - size_t i; + const char *comp_class_name = + bt_component_class_get_name(comp_cls); + const char *comp_class_description = + bt_component_class_get_description(comp_cls); + const char *comp_class_help = + bt_component_class_get_help(comp_cls); + bt_component_class_type type = + bt_component_class_get_type(comp_cls); + + print_plugin_comp_cls_opt(stdout, plugin_name, comp_class_name, type); + printf("\n"); + printf(" %sDescription%s: %s\n", bt_common_color_bold(), + bt_common_color_reset(), + comp_class_description ? comp_class_description : "(None)"); - ret = load_all_plugins(cfg->plugin_paths); - if (ret) { - goto end; + if (comp_class_help) { + printf("\n%s\n", comp_class_help); } +} + +static +int cmd_help(struct bt_config *cfg) +{ + int ret = 0; + const bt_plugin *plugin = NULL; + const bt_component_class *needed_comp_cls = NULL; plugin = find_plugin(cfg->cmd_data.help.cfg_component->plugin_name->str); if (!plugin) { + BT_LOGE("Cannot find plugin: plugin-name=\"%s\"", + cfg->cmd_data.help.cfg_component->plugin_name->str); fprintf(stderr, "%s%sCannot find plugin %s%s%s\n", bt_common_color_bold(), bt_common_color_fg_red(), bt_common_color_fg_blue(), @@ -853,361 +1054,1697 @@ static int cmd_help(struct bt_config *cfg) } print_plugin_info(plugin); - printf(" %sComponent classes%s: %d\n", + printf(" %sSource component classes%s: %d\n", bt_common_color_bold(), bt_common_color_reset(), - bt_plugin_get_component_class_count(plugin)); + (int) bt_plugin_get_source_component_class_count(plugin)); + printf(" %sFilter component classes%s: %d\n", + bt_common_color_bold(), + bt_common_color_reset(), + (int) bt_plugin_get_filter_component_class_count(plugin)); + printf(" %sSink component classes%s: %d\n", + bt_common_color_bold(), + bt_common_color_reset(), + (int) bt_plugin_get_sink_component_class_count(plugin)); + + if (strlen(cfg->cmd_data.help.cfg_component->comp_cls_name->str) == 0) { + /* Plugin help only */ + goto end; + } + + needed_comp_cls = find_component_class( + cfg->cmd_data.help.cfg_component->plugin_name->str, + cfg->cmd_data.help.cfg_component->comp_cls_name->str, + cfg->cmd_data.help.cfg_component->type); + if (!needed_comp_cls) { + BT_LOGE("Cannot find component class: plugin-name=\"%s\", " + "comp-cls-name=\"%s\", comp-cls-type=%d", + cfg->cmd_data.help.cfg_component->plugin_name->str, + cfg->cmd_data.help.cfg_component->comp_cls_name->str, + cfg->cmd_data.help.cfg_component->type); + fprintf(stderr, "\n%s%sCannot find component class %s", + bt_common_color_bold(), + bt_common_color_fg_red(), + bt_common_color_reset()); + print_plugin_comp_cls_opt(stderr, + cfg->cmd_data.help.cfg_component->plugin_name->str, + cfg->cmd_data.help.cfg_component->comp_cls_name->str, + cfg->cmd_data.help.cfg_component->type); + fprintf(stderr, "\n"); + ret = -1; + goto end; + } + + printf("\n"); + print_component_class_help( + cfg->cmd_data.help.cfg_component->plugin_name->str, + needed_comp_cls); + +end: + bt_component_class_put_ref(needed_comp_cls); + bt_plugin_put_ref(plugin); + return ret; +} + +typedef void *(* plugin_borrow_comp_cls_by_index_func_t)(const bt_plugin *, + uint64_t); +typedef const bt_component_class *(* spec_comp_cls_borrow_comp_cls_func_t)( + void *); + +void cmd_list_plugins_print_component_classes(const bt_plugin *plugin, + const char *cc_type_name, uint64_t count, + plugin_borrow_comp_cls_by_index_func_t borrow_comp_cls_by_index_func, + spec_comp_cls_borrow_comp_cls_func_t spec_comp_cls_borrow_comp_cls_func) +{ + uint64_t i; + + if (count == 0) { + printf(" %s%s component classes%s: (none)\n", + bt_common_color_bold(), + cc_type_name, + bt_common_color_reset()); + goto end; + } else { + printf(" %s%s component classes%s:\n", + bt_common_color_bold(), + cc_type_name, + bt_common_color_reset()); + } + + for (i = 0; i < count; i++) { + const bt_component_class *comp_class = + spec_comp_cls_borrow_comp_cls_func( + borrow_comp_cls_by_index_func(plugin, i)); + const char *comp_class_name = + bt_component_class_get_name(comp_class); + const char *comp_class_description = + bt_component_class_get_description(comp_class); + bt_component_class_type type = + bt_component_class_get_type(comp_class); + + printf(" "); + print_plugin_comp_cls_opt(stdout, + bt_plugin_get_name(plugin), comp_class_name, + type); + + if (comp_class_description) { + printf(": %s", comp_class_description); + } + + printf("\n"); + } + +end: + return; +} + +static +int cmd_list_plugins(struct bt_config *cfg) +{ + int ret = 0; + int plugins_count, component_classes_count = 0, i; + + printf("From the following plugin paths:\n\n"); + print_value(stdout, cfg->plugin_paths, 2); + printf("\n"); + plugins_count = loaded_plugins->len; + if (plugins_count == 0) { + printf("No plugins found.\n"); + goto end; + } + + for (i = 0; i < plugins_count; i++) { + const bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i); + + component_classes_count += + bt_plugin_get_source_component_class_count(plugin) + + bt_plugin_get_filter_component_class_count(plugin) + + bt_plugin_get_sink_component_class_count(plugin); + } + + printf("Found %s%d%s component classes in %s%d%s plugins.\n", + bt_common_color_bold(), + component_classes_count, + bt_common_color_reset(), + bt_common_color_bold(), + plugins_count, + bt_common_color_reset()); + + for (i = 0; i < plugins_count; i++) { + const bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i); + + printf("\n"); + print_plugin_info(plugin); + cmd_list_plugins_print_component_classes(plugin, "Source", + bt_plugin_get_source_component_class_count(plugin), + (plugin_borrow_comp_cls_by_index_func_t) + bt_plugin_borrow_source_component_class_by_index_const, + (spec_comp_cls_borrow_comp_cls_func_t) + bt_component_class_source_as_component_class); + cmd_list_plugins_print_component_classes(plugin, "Filter", + bt_plugin_get_filter_component_class_count(plugin), + (plugin_borrow_comp_cls_by_index_func_t) + bt_plugin_borrow_filter_component_class_by_index_const, + (spec_comp_cls_borrow_comp_cls_func_t) + bt_component_class_filter_as_component_class); + cmd_list_plugins_print_component_classes(plugin, "Sink", + bt_plugin_get_sink_component_class_count(plugin), + (plugin_borrow_comp_cls_by_index_func_t) + bt_plugin_borrow_sink_component_class_by_index_const, + (spec_comp_cls_borrow_comp_cls_func_t) + bt_component_class_sink_as_component_class); + } + +end: + return ret; +} + +static +int cmd_print_lttng_live_sessions(struct bt_config *cfg) +{ + int ret = 0; + const bt_component_class *comp_cls = NULL; + const bt_value *results = NULL; + bt_value *params = NULL; + const bt_value *map = NULL; + const bt_value *v = NULL; + static const char * const plugin_name = "ctf"; + static const char * const comp_cls_name = "lttng-live"; + static const bt_component_class_type comp_cls_type = + BT_COMPONENT_CLASS_TYPE_SOURCE; + int64_t array_size, i; + const char *fail_reason = NULL; + FILE *out_stream = stdout; + + BT_ASSERT(cfg->cmd_data.print_lttng_live_sessions.url); + comp_cls = find_component_class(plugin_name, comp_cls_name, + comp_cls_type); + if (!comp_cls) { + BT_LOGE("Cannot find component class: plugin-name=\"%s\", " + "comp-cls-name=\"%s\", comp-cls-type=%d", + plugin_name, comp_cls_name, + BT_COMPONENT_CLASS_TYPE_SOURCE); + fprintf(stderr, "%s%sCannot find component class %s", + bt_common_color_bold(), + bt_common_color_fg_red(), + bt_common_color_reset()); + print_plugin_comp_cls_opt(stderr, plugin_name, + comp_cls_name, comp_cls_type); + fprintf(stderr, "\n"); + goto error; + } + + params = bt_value_map_create(); + if (!params) { + goto error; + } + + ret = bt_value_map_insert_string_entry(params, "url", + cfg->cmd_data.print_lttng_live_sessions.url->str); + if (ret) { + goto error; + } + + ret = query(comp_cls, "sessions", params, + &results, &fail_reason); + if (ret) { + goto failed; + } + + BT_ASSERT(results); + + if (!bt_value_is_array(results)) { + BT_LOGE_STR("Expecting an array for sessions query."); + fprintf(stderr, "%s%sUnexpected type returned by session query%s\n", + bt_common_color_bold(), + bt_common_color_fg_red(), + bt_common_color_reset()); + goto error; + } + + if (cfg->cmd_data.print_lttng_live_sessions.output_path->len > 0) { + out_stream = + fopen(cfg->cmd_data.print_lttng_live_sessions.output_path->str, + "w"); + if (!out_stream) { + ret = -1; + BT_LOGE_ERRNO("Cannot open file for writing", + ": path=\"%s\"", + cfg->cmd_data.print_lttng_live_sessions.output_path->str); + goto end; + } + } + + array_size = bt_value_array_get_size(results); + for (i = 0; i < array_size; i++) { + const char *url_text; + int64_t timer_us, streams, clients; + + map = bt_value_array_borrow_element_by_index_const(results, i); + if (!map) { + BT_LOGE_STR("Unexpected empty array entry."); + goto error; + } + if (!bt_value_is_map(map)) { + BT_LOGE_STR("Unexpected entry type."); + goto error; + } + + v = bt_value_map_borrow_entry_value_const(map, "url"); + if (!v) { + BT_LOGE_STR("Unexpected empty array \"url\" entry."); + goto error; + } + url_text = bt_value_string_get(v); + fprintf(out_stream, "%s", url_text); + v = bt_value_map_borrow_entry_value_const(map, "timer-us"); + if (!v) { + BT_LOGE_STR("Unexpected empty array \"timer-us\" entry."); + goto error; + } + timer_us = bt_value_signed_integer_get(v); + fprintf(out_stream, " (timer = %" PRIu64 ", ", timer_us); + v = bt_value_map_borrow_entry_value_const(map, "stream-count"); + if (!v) { + BT_LOGE_STR("Unexpected empty array \"stream-count\" entry."); + goto error; + } + streams = bt_value_signed_integer_get(v); + fprintf(out_stream, "%" PRIu64 " stream(s), ", streams); + v = bt_value_map_borrow_entry_value_const(map, "client-count"); + if (!v) { + BT_LOGE_STR("Unexpected empty array \"client-count\" entry."); + goto error; + } + clients = bt_value_signed_integer_get(v); + fprintf(out_stream, "%" PRIu64 " client(s) connected)\n", clients); + } + + goto end; + +failed: + BT_LOGE("Failed to query for sessions: %s", fail_reason); + fprintf(stderr, "%s%sFailed to request sessions: %s%s\n", + bt_common_color_bold(), + bt_common_color_fg_red(), + fail_reason, + bt_common_color_reset()); + +error: + ret = -1; + +end: + bt_value_put_ref(results); + bt_value_put_ref(params); + bt_component_class_put_ref(comp_cls); + + if (out_stream && out_stream != stdout) { + int fclose_ret = fclose(out_stream); + + if (fclose_ret) { + BT_LOGE_ERRNO("Cannot close file stream", + ": path=\"%s\"", + cfg->cmd_data.print_lttng_live_sessions.output_path->str); + } + } + + return ret; +} + +static +int cmd_print_ctf_metadata(struct bt_config *cfg) +{ + int ret = 0; + const bt_component_class *comp_cls = NULL; + const bt_value *results = NULL; + bt_value *params = NULL; + const bt_value *metadata_text_value = NULL; + const char *metadata_text = NULL; + static const char * const plugin_name = "ctf"; + static const char * const comp_cls_name = "fs"; + static const bt_component_class_type comp_cls_type = + BT_COMPONENT_CLASS_TYPE_SOURCE; + const char *fail_reason = NULL; + FILE *out_stream = stdout; + + BT_ASSERT(cfg->cmd_data.print_ctf_metadata.path); + comp_cls = find_component_class(plugin_name, comp_cls_name, + comp_cls_type); + if (!comp_cls) { + BT_LOGE("Cannot find component class: plugin-name=\"%s\", " + "comp-cls-name=\"%s\", comp-cls-type=%d", + plugin_name, comp_cls_name, + BT_COMPONENT_CLASS_TYPE_SOURCE); + fprintf(stderr, "%s%sCannot find component class %s", + bt_common_color_bold(), + bt_common_color_fg_red(), + bt_common_color_reset()); + print_plugin_comp_cls_opt(stderr, plugin_name, + comp_cls_name, comp_cls_type); + fprintf(stderr, "\n"); + ret = -1; + goto end; + } + + params = bt_value_map_create(); + if (!params) { + ret = -1; + goto end; + } + + ret = bt_value_map_insert_string_entry(params, "path", + cfg->cmd_data.print_ctf_metadata.path->str); + if (ret) { + ret = -1; + goto end; + } + + ret = query(comp_cls, "metadata-info", + params, &results, &fail_reason); + if (ret) { + goto failed; + } + metadata_text_value = bt_value_map_borrow_entry_value_const(results, + "text"); + if (!metadata_text_value) { + BT_LOGE_STR("Cannot find `text` string value in the resulting metadata info object."); + ret = -1; + goto end; + } + + metadata_text = bt_value_string_get(metadata_text_value); + + if (cfg->cmd_data.print_ctf_metadata.output_path->len > 0) { + out_stream = + fopen(cfg->cmd_data.print_ctf_metadata.output_path->str, + "w"); + if (!out_stream) { + ret = -1; + BT_LOGE_ERRNO("Cannot open file for writing", + ": path=\"%s\"", + cfg->cmd_data.print_ctf_metadata.output_path->str); + goto end; + } + } + + ret = fprintf(out_stream, "%s\n", metadata_text); + if (ret < 0) { + BT_LOGE("Cannot write whole metadata text to output stream: " + "ret=%d", ret); + } + + goto end; + +failed: + ret = -1; + BT_LOGE("Failed to query for metadata info: %s", fail_reason); + fprintf(stderr, "%s%sFailed to request metadata info: %s%s\n", + bt_common_color_bold(), + bt_common_color_fg_red(), + fail_reason, + bt_common_color_reset()); + +end: + bt_value_put_ref(results); + bt_value_put_ref(params); + bt_component_class_put_ref(comp_cls); + + if (out_stream && out_stream != stdout) { + int fclose_ret = fclose(out_stream); + + if (fclose_ret) { + BT_LOGE_ERRNO("Cannot close file stream", + ": path=\"%s\"", + cfg->cmd_data.print_ctf_metadata.output_path->str); + } + } + + return ret; +} + +struct port_id { + char *instance_name; + char *port_name; +}; + +struct trace_range { + uint64_t intersection_range_begin_ns; + uint64_t intersection_range_end_ns; +}; + +static +guint port_id_hash(gconstpointer v) +{ + const struct port_id *id = v; + + BT_ASSERT(id->instance_name); + BT_ASSERT(id->port_name); + + return g_str_hash(id->instance_name) ^ g_str_hash(id->port_name); +} + +static +gboolean port_id_equal(gconstpointer v1, gconstpointer v2) +{ + const struct port_id *id1 = v1; + const struct port_id *id2 = v2; + + return !strcmp(id1->instance_name, id2->instance_name) && + !strcmp(id1->port_name, id2->port_name); +} + +static +void port_id_destroy(gpointer data) +{ + struct port_id *id = data; + + free(id->instance_name); + free(id->port_name); + free(id); +} + +static +void trace_range_destroy(gpointer data) +{ + free(data); +} + +struct cmd_run_ctx { + /* Owned by this */ + GHashTable *src_components; + + /* Owned by this */ + GHashTable *flt_components; + + /* Owned by this */ + GHashTable *sink_components; + + /* Owned by this */ + bt_graph *graph; + + /* Weak */ + struct bt_config *cfg; + + bool connect_ports; + + bool stream_intersection_mode; + + /* + * Association of struct port_id -> struct trace_range. + */ + GHashTable *intersections; +}; + +/* Returns a timestamp of the form "(-)s.ns" */ +static +char *s_from_ns(int64_t ns) +{ + int ret; + char *s_ret = NULL; + bool is_negative; + int64_t ts_sec_abs, ts_nsec_abs; + int64_t ts_sec = ns / NSEC_PER_SEC; + int64_t ts_nsec = ns % NSEC_PER_SEC; + + if (ts_sec >= 0 && ts_nsec >= 0) { + is_negative = false; + ts_sec_abs = ts_sec; + ts_nsec_abs = ts_nsec; + } else if (ts_sec > 0 && ts_nsec < 0) { + is_negative = false; + ts_sec_abs = ts_sec - 1; + ts_nsec_abs = NSEC_PER_SEC + ts_nsec; + } else if (ts_sec == 0 && ts_nsec < 0) { + is_negative = true; + ts_sec_abs = ts_sec; + ts_nsec_abs = -ts_nsec; + } else if (ts_sec < 0 && ts_nsec > 0) { + is_negative = true; + ts_sec_abs = -(ts_sec + 1); + ts_nsec_abs = NSEC_PER_SEC - ts_nsec; + } else if (ts_sec < 0 && ts_nsec == 0) { + is_negative = true; + ts_sec_abs = -ts_sec; + ts_nsec_abs = ts_nsec; + } else { /* (ts_sec < 0 && ts_nsec < 0) */ + is_negative = true; + ts_sec_abs = -ts_sec; + ts_nsec_abs = -ts_nsec; + } + + ret = asprintf(&s_ret, "%s%" PRId64 ".%09" PRId64, + is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs); + if (ret < 0) { + s_ret = NULL; + } + return s_ret; +} + +static +int cmd_run_ctx_connect_upstream_port_to_downstream_component( + struct cmd_run_ctx *ctx, + const bt_component *upstream_comp, + const bt_port_output *out_upstream_port, + struct bt_config_connection *cfg_conn) +{ + typedef uint64_t (*input_port_count_func_t)(void *); + typedef const bt_port_input *(*borrow_input_port_by_index_func_t)( + const void *, uint64_t); + const bt_port *upstream_port = + bt_port_output_as_port_const(out_upstream_port); + + int ret = 0; + GQuark downstreamp_comp_name_quark; + void *downstream_comp; + uint64_t downstream_port_count; + uint64_t i; + input_port_count_func_t port_count_fn; + borrow_input_port_by_index_func_t port_by_index_fn; + bt_graph_status status = BT_GRAPH_STATUS_ERROR; + bool insert_trimmer = false; + bt_value *trimmer_params = NULL; + char *intersection_begin = NULL; + char *intersection_end = NULL; + const bt_component_filter *trimmer = NULL; + const bt_component_class_filter *trimmer_class = NULL; + const bt_port_input *trimmer_input = NULL; + const bt_port_output *trimmer_output = NULL; + + if (ctx->intersections && + bt_component_get_class_type(upstream_comp) == + BT_COMPONENT_CLASS_TYPE_SOURCE) { + struct trace_range *range; + struct port_id port_id = { + .instance_name = (char *) bt_component_get_name(upstream_comp), + .port_name = (char *) bt_port_get_name(upstream_port) + }; + + if (!port_id.instance_name || !port_id.port_name) { + goto error; + } + + range = (struct trace_range *) g_hash_table_lookup( + ctx->intersections, &port_id); + if (range) { + bt_value_status status; + + intersection_begin = s_from_ns( + range->intersection_range_begin_ns); + intersection_end = s_from_ns( + range->intersection_range_end_ns); + if (!intersection_begin || !intersection_end) { + BT_LOGE_STR("Cannot create trimmer argument timestamp string."); + goto error; + } + + insert_trimmer = true; + trimmer_params = bt_value_map_create(); + if (!trimmer_params) { + goto error; + } + + status = bt_value_map_insert_string_entry( + trimmer_params, "begin", intersection_begin); + if (status != BT_VALUE_STATUS_OK) { + goto error; + } + status = bt_value_map_insert_string_entry( + trimmer_params, + "end", intersection_end); + if (status != BT_VALUE_STATUS_OK) { + goto error; + } + } + + trimmer_class = find_filter_component_class("utils", "trimmer"); + if (!trimmer_class) { + goto error; + } + } + + BT_LOGI("Connecting upstream port to the next available downstream port: " + "upstream-port-addr=%p, upstream-port-name=\"%s\", " + "downstream-comp-name=\"%s\", conn-arg=\"%s\"", + upstream_port, bt_port_get_name(upstream_port), + cfg_conn->downstream_comp_name->str, + cfg_conn->arg->str); + downstreamp_comp_name_quark = g_quark_from_string( + cfg_conn->downstream_comp_name->str); + BT_ASSERT(downstreamp_comp_name_quark > 0); + downstream_comp = g_hash_table_lookup(ctx->flt_components, + GUINT_TO_POINTER(downstreamp_comp_name_quark)); + port_count_fn = (input_port_count_func_t) + bt_component_filter_get_input_port_count; + port_by_index_fn = (borrow_input_port_by_index_func_t) + bt_component_filter_borrow_input_port_by_index_const; + + if (!downstream_comp) { + downstream_comp = g_hash_table_lookup(ctx->sink_components, + GUINT_TO_POINTER(downstreamp_comp_name_quark)); + port_count_fn = (input_port_count_func_t) + bt_component_sink_get_input_port_count; + port_by_index_fn = (borrow_input_port_by_index_func_t) + bt_component_sink_borrow_input_port_by_index_const; + } + + if (!downstream_comp) { + BT_LOGE("Cannot find downstream component: comp-name=\"%s\", " + "conn-arg=\"%s\"", cfg_conn->downstream_comp_name->str, + cfg_conn->arg->str); + fprintf(stderr, "Cannot create connection: cannot find downstream component: %s\n", + cfg_conn->arg->str); + goto error; + } + + downstream_port_count = port_count_fn(downstream_comp); + + for (i = 0; i < downstream_port_count; i++) { + const bt_port_input *in_downstream_port = + port_by_index_fn(downstream_comp, i); + const bt_port *downstream_port = + bt_port_input_as_port_const(in_downstream_port); + const char *upstream_port_name; + const char *downstream_port_name; + + BT_ASSERT(downstream_port); + + /* Skip port if it's already connected. */ + if (bt_port_is_connected(downstream_port)) { + BT_LOGD("Skipping downstream port: already connected: " + "port-addr=%p, port-name=\"%s\"", + downstream_port, + bt_port_get_name(downstream_port)); + continue; + } + + downstream_port_name = bt_port_get_name(downstream_port); + BT_ASSERT(downstream_port_name); + upstream_port_name = bt_port_get_name(upstream_port); + BT_ASSERT(upstream_port_name); + + if (!bt_common_star_glob_match( + cfg_conn->downstream_port_glob->str, SIZE_MAX, + downstream_port_name, SIZE_MAX)) { + continue; + } + + if (insert_trimmer) { + /* + * In order to insert the trimmer between the + * two components that were being connected, we + * create a connection configuration entry which + * describes a connection from the trimmer's + * output to the original input that was being + * connected. + * + * Hence, the creation of the trimmer will cause + * the graph "new port" listener to establish + * all downstream connections as its output port + * is connected. We will then establish the + * connection between the original upstream + * source and the trimmer. + */ + char *trimmer_name = NULL; + bt_graph_status graph_status; + + ret = asprintf(&trimmer_name, + "stream-intersection-trimmer-%s", + upstream_port_name); + if (ret < 0) { + goto error; + } + ret = 0; + + ctx->connect_ports = false; + graph_status = bt_graph_add_filter_component( + ctx->graph, trimmer_class, trimmer_name, + trimmer_params, &trimmer); + free(trimmer_name); + if (graph_status != BT_GRAPH_STATUS_OK) { + goto error; + } + BT_ASSERT(trimmer); + + trimmer_input = + bt_component_filter_borrow_input_port_by_index_const( + trimmer, 0); + if (!trimmer_input) { + goto error; + } + trimmer_output = + bt_component_filter_borrow_output_port_by_index_const( + trimmer, 0); + if (!trimmer_output) { + goto error; + } + + /* + * Replace the current downstream port by the trimmer's + * upstream port. + */ + in_downstream_port = trimmer_input; + downstream_port = + bt_port_input_as_port_const(in_downstream_port); + downstream_port_name = bt_port_get_name( + downstream_port); + BT_ASSERT(downstream_port_name); + } + + /* We have a winner! */ + status = bt_graph_connect_ports(ctx->graph, + out_upstream_port, in_downstream_port, NULL); + downstream_port = NULL; + switch (status) { + case BT_GRAPH_STATUS_OK: + break; + case BT_GRAPH_STATUS_CANCELED: + BT_LOGI_STR("Graph was canceled by user."); + status = BT_GRAPH_STATUS_OK; + break; + case BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION: + BT_LOGE("A component refused a connection to one of its ports: " + "upstream-comp-addr=%p, upstream-comp-name=\"%s\", " + "upstream-port-addr=%p, upstream-port-name=\"%s\", " + "downstream-comp-addr=%p, downstream-comp-name=\"%s\", " + "downstream-port-addr=%p, downstream-port-name=\"%s\", " + "conn-arg=\"%s\"", + upstream_comp, bt_component_get_name(upstream_comp), + upstream_port, bt_port_get_name(upstream_port), + downstream_comp, cfg_conn->downstream_comp_name->str, + downstream_port, downstream_port_name, + cfg_conn->arg->str); + fprintf(stderr, + "A component refused a connection to one of its ports (`%s` to `%s`): %s\n", + bt_port_get_name(upstream_port), + downstream_port_name, + cfg_conn->arg->str); + break; + default: + BT_LOGE("Cannot create connection: graph refuses to connect ports: " + "upstream-comp-addr=%p, upstream-comp-name=\"%s\", " + "upstream-port-addr=%p, upstream-port-name=\"%s\", " + "downstream-comp-addr=%p, downstream-comp-name=\"%s\", " + "downstream-port-addr=%p, downstream-port-name=\"%s\", " + "conn-arg=\"%s\"", + upstream_comp, bt_component_get_name(upstream_comp), + upstream_port, bt_port_get_name(upstream_port), + downstream_comp, cfg_conn->downstream_comp_name->str, + downstream_port, downstream_port_name, + cfg_conn->arg->str); + fprintf(stderr, + "Cannot create connection: graph refuses to connect ports (`%s` to `%s`): %s\n", + bt_port_get_name(upstream_port), + downstream_port_name, + cfg_conn->arg->str); + goto error; + } + + BT_LOGI("Connected component ports: " + "upstream-comp-addr=%p, upstream-comp-name=\"%s\", " + "upstream-port-addr=%p, upstream-port-name=\"%s\", " + "downstream-comp-addr=%p, downstream-comp-name=\"%s\", " + "downstream-port-addr=%p, downstream-port-name=\"%s\", " + "conn-arg=\"%s\"", + upstream_comp, bt_component_get_name(upstream_comp), + upstream_port, bt_port_get_name(upstream_port), + downstream_comp, cfg_conn->downstream_comp_name->str, + downstream_port, downstream_port_name, + cfg_conn->arg->str); + + if (insert_trimmer) { + /* + * The first connection, from the source to the trimmer, + * has been done. We now connect the trimmer to the + * original downstream port. + */ + ret = cmd_run_ctx_connect_upstream_port_to_downstream_component( + ctx, + bt_component_filter_as_component_const(trimmer), + trimmer_output, cfg_conn); + if (ret) { + goto error; + } + ctx->connect_ports = true; + } + + /* + * We found a matching downstream port: the search is + * over. + */ + goto end; + } + + /* No downstream port found */ + BT_LOGE("Cannot create connection: cannot find a matching downstream port for upstream port: " + "upstream-port-addr=%p, upstream-port-name=\"%s\", " + "downstream-comp-name=\"%s\", conn-arg=\"%s\"", + upstream_port, bt_port_get_name(upstream_port), + cfg_conn->downstream_comp_name->str, + cfg_conn->arg->str); + fprintf(stderr, + "Cannot create connection: cannot find a matching downstream port for upstream port `%s`: %s\n", + bt_port_get_name(upstream_port), cfg_conn->arg->str); + +error: + ret = -1; + +end: + free(intersection_begin); + free(intersection_end); + BT_VALUE_PUT_REF_AND_RESET(trimmer_params); + BT_COMPONENT_CLASS_FILTER_PUT_REF_AND_RESET(trimmer_class); + BT_COMPONENT_FILTER_PUT_REF_AND_RESET(trimmer); + return ret; +} + +static +int cmd_run_ctx_connect_upstream_port(struct cmd_run_ctx *ctx, + const bt_port_output *upstream_port) +{ + int ret = 0; + const char *upstream_port_name; + const char *upstream_comp_name; + const bt_component *upstream_comp = NULL; + size_t i; + + BT_ASSERT(ctx); + BT_ASSERT(upstream_port); + upstream_port_name = bt_port_get_name( + bt_port_output_as_port_const(upstream_port)); + BT_ASSERT(upstream_port_name); + upstream_comp = bt_port_borrow_component_const( + bt_port_output_as_port_const(upstream_port)); + if (!upstream_comp) { + BT_LOGW("Upstream port to connect is not part of a component: " + "port-addr=%p, port-name=\"%s\"", + upstream_port, upstream_port_name); + ret = -1; + goto end; + } + + upstream_comp_name = bt_component_get_name(upstream_comp); + BT_ASSERT(upstream_comp_name); + BT_LOGI("Connecting upstream port: comp-addr=%p, comp-name=\"%s\", " + "port-addr=%p, port-name=\"%s\"", + upstream_comp, upstream_comp_name, + upstream_port, upstream_port_name); + + for (i = 0; i < ctx->cfg->cmd_data.run.connections->len; i++) { + struct bt_config_connection *cfg_conn = + g_ptr_array_index( + ctx->cfg->cmd_data.run.connections, i); + + if (strcmp(cfg_conn->upstream_comp_name->str, + upstream_comp_name)) { + continue; + } + + if (!bt_common_star_glob_match( + cfg_conn->upstream_port_glob->str, + SIZE_MAX, upstream_port_name, SIZE_MAX)) { + continue; + } + + ret = cmd_run_ctx_connect_upstream_port_to_downstream_component( + ctx, upstream_comp, upstream_port, cfg_conn); + if (ret) { + BT_LOGE("Cannot connect upstream port: " + "port-addr=%p, port-name=\"%s\"", + upstream_port, + upstream_port_name); + fprintf(stderr, + "Cannot connect port `%s` of component `%s` to a downstream port: %s\n", + upstream_port_name, + upstream_comp_name, + cfg_conn->arg->str); + goto error; + } + goto end; + } + + BT_LOGE("Cannot connect upstream port: port does not match any connection argument: " + "port-addr=%p, port-name=\"%s\"", upstream_port, + upstream_port_name); + fprintf(stderr, + "Cannot create connection: upstream port `%s` does not match any connection\n", + upstream_port_name); + +error: + ret = -1; + +end: + return ret; +} + +static +void graph_output_port_added_listener(struct cmd_run_ctx *ctx, + const bt_port_output *out_port) +{ + const bt_component *comp; + const bt_port *port = bt_port_output_as_port_const(out_port); + + comp = bt_port_borrow_component_const(port); + BT_LOGI("Port added to a graph's component: comp-addr=%p, " + "comp-name=\"%s\", port-addr=%p, port-name=\"%s\"", + comp, comp ? bt_component_get_name(comp) : "", + port, bt_port_get_name(port)); + + if (!ctx->connect_ports) { + goto end; + } + + if (!comp) { + BT_LOGW_STR("Port has no component."); + goto end; + } + + if (bt_port_is_connected(port)) { + BT_LOGW_STR("Port is already connected."); + goto end; + } + + if (cmd_run_ctx_connect_upstream_port(ctx, out_port)) { + BT_LOGF_STR("Cannot connect upstream port."); + fprintf(stderr, "Added port could not be connected: aborting\n"); + abort(); + } + +end: + return; +} + +static +void graph_source_output_port_added_listener( + const bt_component_source *component, + const bt_port_output *port, void *data) +{ + graph_output_port_added_listener(data, port); +} + +static +void graph_filter_output_port_added_listener( + const bt_component_filter *component, + const bt_port_output *port, void *data) +{ + graph_output_port_added_listener(data, port); +} + +static +void cmd_run_ctx_destroy(struct cmd_run_ctx *ctx) +{ + if (!ctx) { + return; + } + + if (ctx->src_components) { + g_hash_table_destroy(ctx->src_components); + ctx->src_components = NULL; + } + + if (ctx->flt_components) { + g_hash_table_destroy(ctx->flt_components); + ctx->flt_components = NULL; + } + + if (ctx->sink_components) { + g_hash_table_destroy(ctx->sink_components); + ctx->sink_components = NULL; + } + + if (ctx->intersections) { + g_hash_table_destroy(ctx->intersections); + ctx->intersections = NULL; + } + + BT_GRAPH_PUT_REF_AND_RESET(ctx->graph); + the_graph = NULL; + ctx->cfg = NULL; +} + +static +int cmd_run_ctx_init(struct cmd_run_ctx *ctx, struct bt_config *cfg) +{ + int ret = 0; + bt_graph_status status; - if (cfg->cmd_data.help.cfg_component->type != - BT_COMPONENT_CLASS_TYPE_UNKNOWN) { - struct bt_component_class *needed_comp_cls = - find_component_class( - cfg->cmd_data.help.cfg_component->plugin_name->str, - cfg->cmd_data.help.cfg_component->comp_cls_name->str, - cfg->cmd_data.help.cfg_component->type); + ctx->cfg = cfg; + ctx->connect_ports = false; + ctx->src_components = g_hash_table_new_full(g_direct_hash, + g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref); + if (!ctx->src_components) { + goto error; + } - if (!needed_comp_cls) { - fprintf(stderr, "\n%s%sCannot find component class %s", - bt_common_color_bold(), - bt_common_color_fg_red(), - bt_common_color_reset()); - print_plugin_comp_cls_opt(stderr, - cfg->cmd_data.help.cfg_component->plugin_name->str, - cfg->cmd_data.help.cfg_component->comp_cls_name->str, - cfg->cmd_data.help.cfg_component->type); - fprintf(stderr, "\n"); - ret = -1; - goto end; - } + ctx->flt_components = g_hash_table_new_full(g_direct_hash, + g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref); + if (!ctx->flt_components) { + goto error; + } - bt_put(needed_comp_cls); + ctx->sink_components = g_hash_table_new_full(g_direct_hash, + g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref); + if (!ctx->sink_components) { + goto error; } - for (i = 0; i < bt_plugin_get_component_class_count(plugin); i++) { - struct bt_component_class *comp_cls = - bt_plugin_get_component_class(plugin, i); - const char *comp_class_name = - bt_component_class_get_name(comp_cls); - const char *comp_class_description = - bt_component_class_get_description(comp_cls); - const char *comp_class_help = - bt_component_class_get_help(comp_cls); - enum bt_component_class_type type = - bt_component_class_get_type(comp_cls); - - assert(comp_cls); - - if (cfg->cmd_data.help.cfg_component->type != - BT_COMPONENT_CLASS_TYPE_UNKNOWN) { - if (strcmp(cfg->cmd_data.help.cfg_component->comp_cls_name->str, - comp_class_name) != 0 && - type == - cfg->cmd_data.help.cfg_component->type) { - bt_put(comp_cls); - continue; - } + if (cfg->cmd_data.run.stream_intersection_mode) { + ctx->stream_intersection_mode = true; + ctx->intersections = g_hash_table_new_full(port_id_hash, + port_id_equal, port_id_destroy, trace_range_destroy); + if (!ctx->intersections) { + goto error; } + } - printf("\n"); - print_plugin_comp_cls_opt(stdout, - cfg->cmd_data.help.cfg_component->plugin_name->str, - comp_class_name, - type); - printf("\n"); - printf(" %sDescription%s: %s\n", bt_common_color_bold(), - bt_common_color_reset(), - comp_class_description ? comp_class_description : "(None)"); + ctx->graph = bt_graph_create(); + if (!ctx->graph) { + goto error; + } - if (comp_class_help) { - printf("\n%s\n", comp_class_help); - } + the_graph = ctx->graph; + status = bt_graph_add_source_component_output_port_added_listener( + ctx->graph, graph_source_output_port_added_listener, NULL, ctx, + NULL); + if (status != BT_GRAPH_STATUS_OK) { + BT_LOGE_STR("Cannot add \"port added\" listener to graph."); + goto error; + } - bt_put(comp_cls); + status = bt_graph_add_filter_component_output_port_added_listener( + ctx->graph, graph_filter_output_port_added_listener, NULL, ctx, + NULL); + if (status != BT_GRAPH_STATUS_OK) { + BT_LOGE_STR("Cannot add \"port added\" listener to graph."); + goto error; } + goto end; + +error: + cmd_run_ctx_destroy(ctx); + ret = -1; + end: - bt_put(plugin); return ret; } -static int cmd_list_plugins(struct bt_config *cfg) +static +int set_stream_intersections(struct cmd_run_ctx *ctx, + struct bt_config_component *cfg_comp, + const bt_component_class_source *src_comp_cls) { - int ret; - int plugins_count, component_classes_count = 0, i; - - ret = load_all_plugins(cfg->plugin_paths); + int ret = 0; + uint64_t trace_idx; + int64_t trace_count; + const char *path = NULL; + const bt_value *query_result = NULL; + const bt_value *trace_info = NULL; + const bt_value *intersection_range = NULL; + const bt_value *intersection_begin = NULL; + const bt_value *intersection_end = NULL; + const bt_value *stream_path_value = NULL; + const bt_value *stream_paths = NULL; + const bt_value *stream_infos = NULL; + const bt_value *stream_info = NULL; + struct port_id *port_id = NULL; + struct trace_range *trace_range = NULL; + const char *fail_reason = NULL; + const bt_component_class *comp_cls = + bt_component_class_source_as_component_class_const(src_comp_cls); + + ret = query(comp_cls, "trace-info", + cfg_comp->params, &query_result, + &fail_reason); if (ret) { - goto end; + BT_LOGD("Component class does not support the `trace-info` query: %s: " + "comp-class-name=\"%s\"", fail_reason, + bt_component_class_get_name(comp_cls)); + ret = -1; + goto error; } - printf("From the following plugin paths:\n\n"); - print_value(cfg->plugin_paths, 2); - printf("\n"); - plugins_count = loaded_plugins->len; - if (plugins_count == 0) { - fprintf(stderr, "%s%sNo plugins found.%s\n", - bt_common_color_bold(), bt_common_color_fg_red(), - bt_common_color_reset()); - fprintf(stderr, "\n"); - fprintf(stderr, "Please make sure your plugin search path is set correctly. You can use\n"); - fprintf(stderr, "the --plugin-path command-line option or the BABELTRACE_PLUGIN_PATH\n"); - fprintf(stderr, "environment variable.\n"); + BT_ASSERT(query_result); + + if (!bt_value_is_array(query_result)) { + BT_LOGD("Unexpected format of \'trace-info\' query result: " + "component-class-name=%s", + bt_component_class_get_name(comp_cls)); ret = -1; - goto end; + goto error; } - for (i = 0; i < plugins_count; i++) { - struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i); + trace_count = bt_value_array_get_size(query_result); + if (trace_count < 0) { + ret = -1; + goto error; + } + + for (trace_idx = 0; trace_idx < trace_count; trace_idx++) { + int64_t begin, end; + uint64_t stream_idx; + int64_t stream_count; + + trace_info = bt_value_array_borrow_element_by_index_const( + query_result, trace_idx); + if (!trace_info || !bt_value_is_map(trace_info)) { + ret = -1; + BT_LOGD_STR("Cannot retrieve trace from query result."); + goto error; + } + + intersection_range = bt_value_map_borrow_entry_value_const( + trace_info, "intersection-range-ns"); + if (!intersection_range) { + ret = -1; + BT_LOGD_STR("Cannot retrieve \'intersetion-range-ns\' field from query result."); + goto error; + } + + intersection_begin = bt_value_map_borrow_entry_value_const(intersection_range, + "begin"); + if (!intersection_begin) { + ret = -1; + BT_LOGD_STR("Cannot retrieve intersection-range-ns \'begin\' field from query result."); + goto error; + } + + intersection_end = bt_value_map_borrow_entry_value_const(intersection_range, + "end"); + if (!intersection_end) { + ret = -1; + BT_LOGD_STR("Cannot retrieve intersection-range-ns \'end\' field from query result."); + goto error; + } + + begin = bt_value_signed_integer_get(intersection_begin); + end = bt_value_signed_integer_get(intersection_end); + + if (begin < 0 || end < 0 || end < begin) { + BT_LOGW("Invalid trace stream intersection values: " + "intersection-range-ns:begin=%" PRId64 + ", intersection-range-ns:end=%" PRId64, + begin, end); + ret = -1; + goto error; + } + + stream_infos = bt_value_map_borrow_entry_value_const(trace_info, + "streams"); + if (!stream_infos || !bt_value_is_array(stream_infos)) { + ret = -1; + BT_LOGD_STR("Cannot retrieve stream information from trace in query result."); + goto error; + } + + stream_count = bt_value_array_get_size(stream_infos); + if (stream_count < 0) { + ret = -1; + goto error; + } + + /* + * FIXME + * + * The first path of a stream's "paths" is currently used to + * associate streams/ports to a given trace intersection. + * + * This is a fragile hack as it relies on the port names + * being set to the various streams path. + * + * A stream name should be introduced as part of the trace-info + * query result. + */ + for (stream_idx = 0; stream_idx < stream_count; stream_idx++) { + const char *stream_path; + + port_id = g_new0(struct port_id, 1); + if (!port_id) { + ret = -1; + BT_LOGE_STR("Cannot allocate memory for port_id structure."); + goto error; + } + port_id->instance_name = strdup(cfg_comp->instance_name->str); + if (!port_id->instance_name) { + ret = -1; + BT_LOGE_STR("Cannot allocate memory for port_id component instance name."); + goto error; + } + + trace_range = g_new0(struct trace_range, 1); + if (!trace_range) { + ret = -1; + BT_LOGE_STR("Cannot allocate memory for trace_range structure."); + goto error; + } + trace_range->intersection_range_begin_ns = begin; + trace_range->intersection_range_end_ns = end; + + stream_info = bt_value_array_borrow_element_by_index_const( + stream_infos, stream_idx); + if (!stream_info || !bt_value_is_map(stream_info)) { + ret = -1; + BT_LOGD_STR("Cannot retrieve stream informations from trace in query result."); + goto error; + } + + stream_paths = bt_value_map_borrow_entry_value_const(stream_info, + "paths"); + if (!stream_paths || !bt_value_is_array(stream_paths)) { + ret = -1; + BT_LOGD_STR("Cannot retrieve stream paths from trace in query result."); + goto error; + } + + stream_path_value = + bt_value_array_borrow_element_by_index_const( + stream_paths, 0); + if (!stream_path_value || + !bt_value_is_string(stream_path_value)) { + ret = -1; + BT_LOGD_STR("Cannot retrieve stream path value from trace in query result."); + goto error; + } + + stream_path = bt_value_string_get(stream_path_value); + port_id->port_name = strdup(stream_path); + if (!port_id->port_name) { + ret = -1; + BT_LOGE_STR("Cannot allocate memory for port_id port_name."); + goto error; + } - component_classes_count += bt_plugin_get_component_class_count(plugin); + BT_LOGD("Inserting stream intersection "); + + g_hash_table_insert(ctx->intersections, port_id, trace_range); + + port_id = NULL; + trace_range = NULL; + } } - printf("Found %s%d%s component classes in %s%d%s plugins.\n", - bt_common_color_bold(), - component_classes_count, - bt_common_color_reset(), + goto end; + +error: + fprintf(stderr, "%s%sCannot determine stream intersection of trace at path \'%s\'.%s\n", bt_common_color_bold(), - plugins_count, + bt_common_color_fg_yellow(), + path ? path : "(unknown)", bt_common_color_reset()); +end: + bt_value_put_ref(query_result); + g_free(port_id); + g_free(trace_range); + return ret; +} - for (i = 0; i < plugins_count; i++) { - int j; - struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i); +static +int cmd_run_ctx_create_components_from_config_components( + struct cmd_run_ctx *ctx, GPtrArray *cfg_components) +{ + size_t i; + const void *comp_cls = NULL; + const void *comp = NULL; + int ret = 0; - component_classes_count = - bt_plugin_get_component_class_count(plugin); - printf("\n"); - print_plugin_info(plugin); + for (i = 0; i < cfg_components->len; i++) { + struct bt_config_component *cfg_comp = + g_ptr_array_index(cfg_components, i); + GQuark quark; + + switch (cfg_comp->type) { + case BT_COMPONENT_CLASS_TYPE_SOURCE: + comp_cls = find_source_component_class( + cfg_comp->plugin_name->str, + cfg_comp->comp_cls_name->str); + break; + case BT_COMPONENT_CLASS_TYPE_FILTER: + comp_cls = find_filter_component_class( + cfg_comp->plugin_name->str, + cfg_comp->comp_cls_name->str); + break; + case BT_COMPONENT_CLASS_TYPE_SINK: + comp_cls = find_sink_component_class( + cfg_comp->plugin_name->str, + cfg_comp->comp_cls_name->str); + break; + default: + abort(); + } - if (component_classes_count == 0) { - printf(" %sComponent classes%s: (None)\n", + if (!comp_cls) { + BT_LOGE("Cannot find component class: plugin-name=\"%s\", " + "comp-cls-name=\"%s\", comp-cls-type=%d", + cfg_comp->plugin_name->str, + cfg_comp->comp_cls_name->str, + cfg_comp->type); + fprintf(stderr, "%s%sCannot find component class %s", bt_common_color_bold(), + bt_common_color_fg_red(), bt_common_color_reset()); - } else { - printf(" %sComponent classes%s:\n", + print_plugin_comp_cls_opt(stderr, + cfg_comp->plugin_name->str, + cfg_comp->comp_cls_name->str, + cfg_comp->type); + fprintf(stderr, "\n"); + goto error; + } + + switch (cfg_comp->type) { + case BT_COMPONENT_CLASS_TYPE_SOURCE: + ret = bt_graph_add_source_component(ctx->graph, + comp_cls, cfg_comp->instance_name->str, + cfg_comp->params, + (void *) &comp); + break; + case BT_COMPONENT_CLASS_TYPE_FILTER: + ret = bt_graph_add_filter_component(ctx->graph, + comp_cls, cfg_comp->instance_name->str, + cfg_comp->params, + (void *) &comp); + break; + case BT_COMPONENT_CLASS_TYPE_SINK: + ret = bt_graph_add_sink_component(ctx->graph, + comp_cls, cfg_comp->instance_name->str, + cfg_comp->params, + (void *) &comp); + break; + default: + abort(); + } + + if (ret) { + BT_LOGE("Cannot create component: plugin-name=\"%s\", " + "comp-cls-name=\"%s\", comp-cls-type=%d, " + "comp-name=\"%s\"", + cfg_comp->plugin_name->str, + cfg_comp->comp_cls_name->str, + cfg_comp->type, cfg_comp->instance_name->str); + fprintf(stderr, "%s%sCannot create component `%s`%s\n", bt_common_color_bold(), + bt_common_color_fg_red(), + cfg_comp->instance_name->str, bt_common_color_reset()); + goto error; } - for (j = 0; j < component_classes_count; j++) { - struct bt_component_class *comp_class = - bt_plugin_get_component_class(plugin, j); - const char *comp_class_name = - bt_component_class_get_name(comp_class); - 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(" "); - print_plugin_comp_cls_opt(stdout, - bt_plugin_get_name(plugin), comp_class_name, - type); - - if (comp_class_description) { - printf(": %s", comp_class_description); + if (ctx->stream_intersection_mode && + cfg_comp->type == BT_COMPONENT_CLASS_TYPE_SOURCE) { + ret = set_stream_intersections(ctx, cfg_comp, comp_cls); + if (ret) { + goto error; } + } + + BT_LOGI("Created and inserted component: comp-addr=%p, comp-name=\"%s\"", + comp, cfg_comp->instance_name->str); + quark = g_quark_from_string(cfg_comp->instance_name->str); + BT_ASSERT(quark > 0); - printf("\n"); - bt_put(comp_class); + switch (cfg_comp->type) { + case BT_COMPONENT_CLASS_TYPE_SOURCE: + g_hash_table_insert(ctx->src_components, + GUINT_TO_POINTER(quark), (void *) comp); + break; + case BT_COMPONENT_CLASS_TYPE_FILTER: + g_hash_table_insert(ctx->flt_components, + GUINT_TO_POINTER(quark), (void *) comp); + break; + case BT_COMPONENT_CLASS_TYPE_SINK: + g_hash_table_insert(ctx->sink_components, + GUINT_TO_POINTER(quark), (void *) comp); + break; + default: + abort(); } + + comp = NULL; + BT_OBJECT_PUT_REF_AND_RESET(comp_cls); } + goto end; + +error: + ret = -1; + end: + bt_object_put_ref(comp); + bt_object_put_ref(comp_cls); return ret; } -static int cmd_print_lttng_live_sessions(struct bt_config *cfg) -{ - printf("TODO\n"); - return -1; -} - -static int cmd_print_ctf_metadata(struct bt_config *cfg) +static +int cmd_run_ctx_create_components(struct cmd_run_ctx *ctx) { int ret = 0; - struct bt_component_class *comp_cls = NULL; - struct bt_value *results = NULL; - struct bt_value *params = NULL; - struct bt_value *metadata_text_value = NULL; - const char *metadata_text = NULL; - static const char * const plugin_name = "ctf"; - static const char * const comp_cls_name = "fs"; - static const enum bt_component_class_type comp_cls_type = - BT_COMPONENT_CLASS_TYPE_SOURCE; - assert(cfg->cmd_data.print_ctf_metadata.path); - comp_cls = find_component_class(plugin_name, comp_cls_name, - comp_cls_type); - if (!comp_cls) { - fprintf(stderr, "%s%sCannot find component class %s", - bt_common_color_bold(), - bt_common_color_fg_red(), - bt_common_color_reset()); - print_plugin_comp_cls_opt(stderr, plugin_name, - comp_cls_name, comp_cls_type); - fprintf(stderr, "\n"); + /* + * Make sure that, during this phase, our graph's "port added" + * listener does not connect ports while we are creating the + * components because we have a special, initial phase for + * this. + */ + ctx->connect_ports = false; + + ret = cmd_run_ctx_create_components_from_config_components( + ctx, ctx->cfg->cmd_data.run.sources); + if (ret) { ret = -1; goto end; } - params = bt_value_map_create(); - if (!params) { + ret = cmd_run_ctx_create_components_from_config_components( + ctx, ctx->cfg->cmd_data.run.filters); + if (ret) { ret = -1; goto end; } - ret = bt_value_map_insert_string(params, "path", - cfg->cmd_data.print_ctf_metadata.path->str); + ret = cmd_run_ctx_create_components_from_config_components( + ctx, ctx->cfg->cmd_data.run.sinks); if (ret) { ret = -1; goto end; } - results = bt_component_class_query(comp_cls, "metadata-info", - params); - if (!results) { - ret = -1; - fprintf(stderr, "%s%sFailed to request metadata info%s\n", - bt_common_color_bold(), - bt_common_color_fg_red(), - bt_common_color_reset()); - goto end; +end: + return ret; +} + +typedef uint64_t (*output_port_count_func_t)(const void *); +typedef const bt_port_output *(*borrow_output_port_by_index_func_t)( + const void *, uint64_t); + +static +int cmd_run_ctx_connect_comp_ports(struct cmd_run_ctx *ctx, + void *comp, output_port_count_func_t port_count_fn, + borrow_output_port_by_index_func_t port_by_index_fn) +{ + int ret = 0; + uint64_t count; + uint64_t i; + + count = port_count_fn(comp); + + for (i = 0; i < count; i++) { + const bt_port_output *upstream_port = port_by_index_fn(comp, i); + + BT_ASSERT(upstream_port); + ret = cmd_run_ctx_connect_upstream_port(ctx, upstream_port); + if (ret) { + goto end; + } } - metadata_text_value = bt_value_map_get(results, "text"); - if (!metadata_text_value) { - ret = -1; - goto end; +end: + return ret; +} + +static +int cmd_run_ctx_connect_ports(struct cmd_run_ctx *ctx) +{ + int ret = 0; + GHashTableIter iter; + gpointer g_name_quark, g_comp; + + ctx->connect_ports = true; + g_hash_table_iter_init(&iter, ctx->src_components); + + while (g_hash_table_iter_next(&iter, &g_name_quark, &g_comp)) { + ret = cmd_run_ctx_connect_comp_ports(ctx, g_comp, + (output_port_count_func_t) + bt_component_source_get_output_port_count, + (borrow_output_port_by_index_func_t) + bt_component_source_borrow_output_port_by_index_const); + if (ret) { + goto end; + } } - ret = bt_value_string_get(metadata_text_value, &metadata_text); - assert(ret == 0); - printf("%s\n", metadata_text); + g_hash_table_iter_init(&iter, ctx->flt_components); + + while (g_hash_table_iter_next(&iter, &g_name_quark, &g_comp)) { + ret = cmd_run_ctx_connect_comp_ports(ctx, g_comp, + (output_port_count_func_t) + bt_component_filter_get_output_port_count, + (borrow_output_port_by_index_func_t) + bt_component_filter_borrow_output_port_by_index_const); + if (ret) { + goto end; + } + } end: - bt_put(results); - bt_put(params); - bt_put(metadata_text_value); - bt_put(comp_cls); - return 0; + return ret; } -static int cmd_run(struct bt_config *cfg) +static inline +const char *bt_graph_status_str(bt_graph_status status) { - int ret = 0; - 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_component *source_cfg = NULL, *sink_cfg = NULL; - struct bt_graph *graph = NULL; - - ret = load_all_plugins(cfg->plugin_paths); - if (ret) { - goto end; + switch (status) { + case BT_GRAPH_STATUS_OK: + return "BT_GRAPH_STATUS_OK"; + case BT_GRAPH_STATUS_END: + return "BT_GRAPH_STATUS_END"; + case BT_GRAPH_STATUS_AGAIN: + return "BT_GRAPH_STATUS_AGAIN"; + case BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION: + return "BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION"; + case BT_GRAPH_STATUS_CANCELED: + return "BT_GRAPH_STATUS_CANCELED"; + case BT_GRAPH_STATUS_ERROR: + return "BT_GRAPH_STATUS_ERROR"; + case BT_GRAPH_STATUS_NO_SINK: + return "BT_GRAPH_STATUS_NO_SINK"; + case BT_GRAPH_STATUS_NOMEM: + return "BT_GRAPH_STATUS_NOMEM"; + default: + return "(unknown)"; } +} - /* TODO handle more than 1 source and 1 sink. */ - if (cfg->cmd_data.run.sources->len != 1 || - cfg->cmd_data.run.sinks->len != 1) { - fprintf(stderr, "Only one source and one sink component class are supported. Aborting...\n"); - ret = -1; - goto end; +static +int cmd_run(struct bt_config *cfg) +{ + int ret = 0; + struct cmd_run_ctx ctx = { 0 }; + + /* Initialize the command's context and the graph object */ + if (cmd_run_ctx_init(&ctx, cfg)) { + BT_LOGE_STR("Cannot initialize the command's context."); + fprintf(stderr, "Cannot initialize the command's context\n"); + goto error; } - source_cfg = bt_config_get_component(cfg->cmd_data.run.sources, 0); - source_params = bt_get(source_cfg->params); - source_class = find_component_class(source_cfg->plugin_name->str, - source_cfg->comp_cls_name->str, - BT_COMPONENT_CLASS_TYPE_SOURCE); - if (!source_class) { - fprintf(stderr, "Could not find "); - print_plugin_comp_cls_opt(stderr, source_cfg->plugin_name->str, - source_cfg->comp_cls_name->str, BT_COMPONENT_CLASS_TYPE_SOURCE); - fprintf(stderr, ". Aborting...\n"); - ret = -1; - goto end; + if (canceled) { + BT_LOGI_STR("Canceled by user before creating components."); + goto error; } - sink_cfg = bt_config_get_component(cfg->cmd_data.run.sinks, 0); - sink_params = bt_get(sink_cfg->params); - sink_class = find_component_class(sink_cfg->plugin_name->str, - sink_cfg->comp_cls_name->str, - BT_COMPONENT_CLASS_TYPE_SINK); - if (!sink_class) { - fprintf(stderr, "Could not find "); - print_plugin_comp_cls_opt(stderr, sink_cfg->plugin_name->str, - sink_cfg->comp_cls_name->str, BT_COMPONENT_CLASS_TYPE_SINK); - fprintf(stderr, ". Aborting...\n"); - ret = -1; - goto end; + BT_LOGI_STR("Creating components."); + + /* Create the requested component instances */ + if (cmd_run_ctx_create_components(&ctx)) { + BT_LOGE_STR("Cannot create components."); + fprintf(stderr, "Cannot create components\n"); + goto error; } - graph = bt_graph_create(); - if (!graph) { - ret = -1; - goto end; + if (canceled) { + BT_LOGI_STR("Canceled by user before connecting components."); + goto error; } - 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; - } + BT_LOGI_STR("Connecting components."); - 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; + /* Connect the initially visible component ports */ + if (cmd_run_ctx_connect_ports(&ctx)) { + BT_LOGE_STR("Cannot connect initial component ports."); + fprintf(stderr, "Cannot connect initial component ports\n"); + goto error; } - ret = connect_source_sink(graph, source, source_cfg, sink); - if (ret) { - ret = -1; - goto end; + if (canceled) { + BT_LOGI_STR("Canceled by user before running the graph."); + goto error; } + BT_LOGI_STR("Running the graph."); + + /* Run the graph */ while (true) { - enum bt_graph_status graph_status; + bt_graph_status graph_status = bt_graph_run(ctx.graph); + + /* + * Reset console in case something messed with console + * codes during the graph's execution. + */ + printf("%s", bt_common_color_reset()); + fflush(stdout); + fprintf(stderr, "%s", bt_common_color_reset()); + BT_LOGV("bt_graph_run() returned: status=%s", + bt_graph_status_str(graph_status)); - graph_status = bt_graph_run(graph); switch (graph_status) { + case BT_GRAPH_STATUS_OK: + break; + case BT_GRAPH_STATUS_CANCELED: + BT_LOGI_STR("Graph was canceled by user."); + goto error; case BT_GRAPH_STATUS_AGAIN: - /* Wait for an arbitraty 500 ms. */ - usleep(500000); + if (bt_graph_is_canceled(ctx.graph)) { + BT_LOGI_STR("Graph was canceled by user."); + goto error; + } + + if (cfg->cmd_data.run.retry_duration_us > 0) { + BT_LOGV("Got BT_GRAPH_STATUS_AGAIN: sleeping: " + "time-us=%" PRIu64, + cfg->cmd_data.run.retry_duration_us); + + if (usleep(cfg->cmd_data.run.retry_duration_us)) { + if (bt_graph_is_canceled(ctx.graph)) { + BT_LOGI_STR("Graph was canceled by user."); + goto error; + } + } + } break; - case BT_COMPONENT_STATUS_END: + case BT_GRAPH_STATUS_END: goto end; default: - fprintf(stderr, "Sink component returned an error, aborting...\n"); - ret = -1; - goto end; + BT_LOGE_STR("Graph failed to complete successfully"); + fprintf(stderr, "Graph failed to complete successfully\n"); + goto error; } } + goto end; + +error: + if (ret == 0) { + ret = -1; + } + end: - bt_put(sink_class); - bt_put(source_class); - bt_put(source); - bt_put(sink); - bt_put(source_params); - bt_put(sink_params); - bt_put(sink_cfg); - bt_put(source_cfg); - bt_put(graph); + cmd_run_ctx_destroy(&ctx); return ret; } -static void warn_command_name_and_directory_clash(struct bt_config *cfg) +static +void warn_command_name_and_directory_clash(struct bt_config *cfg) { + const char *env_clash; + if (!cfg->command_name) { return; } + env_clash = getenv(ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH); + if (env_clash && strcmp(env_clash, "0") == 0) { + return; + } + if (g_file_test(cfg->command_name, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) { fprintf(stderr, "\nNOTE: The `%s` command was executed. If you meant to convert a\n", @@ -1220,43 +2757,185 @@ static void warn_command_name_and_directory_clash(struct bt_config *cfg) } } +static +void init_log_level(void) +{ + bt_cli_log_level = bt_log_get_level_from_env(ENV_BABELTRACE_CLI_LOG_LEVEL); +} + +static +void set_auto_log_levels(struct bt_config *cfg) +{ + const char **env_var_name; + + /* + * Override the configuration's default log level if + * BABELTRACE_VERBOSE or BABELTRACE_DEBUG environment variables + * are found for backward compatibility with legacy Babetrace 1. + */ + if (getenv("BABELTRACE_DEBUG") && + strcmp(getenv("BABELTRACE_DEBUG"), "1") == 0) { + cfg->log_level = 'V'; + } else if (getenv("BABELTRACE_VERBOSE") && + strcmp(getenv("BABELTRACE_VERBOSE"), "1") == 0) { + cfg->log_level = 'I'; + } + + /* + * Set log levels according to --debug or --verbose. For + * backward compatibility, --debug is more verbose than + * --verbose. So: + * + * --verbose: INFO log level + * --debug: VERBOSE log level (includes DEBUG, which is + * is less verbose than VERBOSE in the internal + * logging framework) + */ + if (!getenv("BABELTRACE_LOGGING_GLOBAL_LEVEL")) { + if (cfg->verbose) { + bt_logging_set_global_level(BT_LOGGING_LEVEL_INFO); + } else if (cfg->debug) { + bt_logging_set_global_level(BT_LOGGING_LEVEL_VERBOSE); + } else { + /* + * Set library's default log level if not + * explicitly specified. + */ + switch (cfg->log_level) { + case 'N': + bt_logging_set_global_level(BT_LOGGING_LEVEL_NONE); + break; + case 'V': + bt_logging_set_global_level(BT_LOGGING_LEVEL_VERBOSE); + break; + case 'D': + bt_logging_set_global_level(BT_LOGGING_LEVEL_DEBUG); + break; + case 'I': + bt_logging_set_global_level(BT_LOGGING_LEVEL_INFO); + break; + case 'W': + bt_logging_set_global_level(BT_LOGGING_LEVEL_WARN); + break; + case 'E': + bt_logging_set_global_level(BT_LOGGING_LEVEL_ERROR); + break; + case 'F': + bt_logging_set_global_level(BT_LOGGING_LEVEL_FATAL); + break; + default: + abort(); + } + } + } + + if (!getenv(ENV_BABELTRACE_CLI_LOG_LEVEL)) { + if (cfg->verbose) { + bt_cli_log_level = BT_LOG_INFO; + } else if (cfg->debug) { + bt_cli_log_level = BT_LOG_VERBOSE; + } else { + /* + * Set CLI's default log level if not explicitly + * specified. + */ + switch (cfg->log_level) { + case 'N': + bt_cli_log_level = BT_LOG_NONE; + break; + case 'V': + bt_cli_log_level = BT_LOG_VERBOSE; + break; + case 'D': + bt_cli_log_level = BT_LOG_DEBUG; + break; + case 'I': + bt_cli_log_level = BT_LOG_INFO; + break; + case 'W': + bt_cli_log_level = BT_LOG_WARN; + break; + case 'E': + bt_cli_log_level = BT_LOG_ERROR; + break; + case 'F': + bt_cli_log_level = BT_LOG_FATAL; + break; + default: + abort(); + } + } + } + + env_var_name = log_level_env_var_names; + + while (*env_var_name) { + if (!getenv(*env_var_name)) { + if (cfg->verbose) { + g_setenv(*env_var_name, "I", 1); + } else if (cfg->debug) { + g_setenv(*env_var_name, "V", 1); + } else { + char val[2] = { 0 }; + + /* + * Set module's default log level if not + * explicitly specified. + */ + val[0] = cfg->log_level; + g_setenv(*env_var_name, val, 1); + } + } + + env_var_name++; + } +} + int main(int argc, const char **argv) { int ret; int retcode; struct bt_config *cfg; - init_loaded_plugins_array(); - cfg = bt_config_from_args_with_defaults(argc, argv, &retcode); + init_log_level(); + set_signal_handler(); + init_static_data(); + cfg = bt_config_cli_args_create_with_default(argc, argv, &retcode); if (retcode < 0) { /* Quit without errors; typically usage/version */ retcode = 0; + BT_LOGI_STR("Quitting without errors."); goto end; } if (retcode > 0) { + BT_LOGE("Command-line error: retcode=%d", retcode); goto end; } if (!cfg) { + BT_LOGE_STR("Failed to create a valid Babeltrace configuration."); fprintf(stderr, "Failed to create Babeltrace configuration\n"); retcode = 1; goto end; } - babeltrace_debug = cfg->debug; - babeltrace_verbose = cfg->verbose; + set_auto_log_levels(cfg); print_cfg(cfg); if (cfg->command_needs_plugins) { ret = load_all_plugins(cfg->plugin_paths); if (ret) { + BT_LOGE("Failed to load plugins: ret=%d", ret); retcode = 1; goto end; } } + BT_LOGI("Executing command: cmd=%d, command-name=\"%s\"", + cfg->command, cfg->command_name); + switch (cfg->command) { case BT_CONFIG_COMMAND_RUN: ret = cmd_run(cfg); @@ -1277,14 +2956,17 @@ int main(int argc, const char **argv) ret = cmd_print_lttng_live_sessions(cfg); break; default: - assert(false); + BT_LOGF("Invalid/unknown command: cmd=%d", cfg->command); + abort(); } + BT_LOGI("Command completed: cmd=%d, command-name=\"%s\", ret=%d", + cfg->command, cfg->command_name, ret); warn_command_name_and_directory_clash(cfg); retcode = ret ? 1 : 0; end: - BT_PUT(cfg); - fini_loaded_plugins_array(); + BT_OBJECT_PUT_REF_AND_RESET(cfg); + fini_static_data(); return retcode; }