+++ /dev/null
-/*
- * Copyright (C) 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * SPDX-License-Identifier: GPL-2.0-only
- *
- */
-
-#define _LGPL_SOURCE
-#include <inttypes.h>
-#include <popt.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <common/mi-lttng.h>
-#include <common/config/session-config.h>
-#include <lttng/lttng.h>
-
-#include "../command.h"
-
-static char *the_opt_input_path;
-static char *the_opt_override_url;
-static char *the_opt_override_session_name;
-static int the_opt_force;
-static int the_opt_load_all;
-
-static const char *the_session_name;
-
-#ifdef LTTNG_EMBED_HELP
-static const char help_msg[] =
-#include <lttng-load.1.h>
-;
-#endif
-
-enum {
- OPT_HELP = 1,
- OPT_ALL,
- OPT_FORCE,
- OPT_LIST_OPTIONS,
-};
-
-static struct mi_writer *the_writer;
-
-static struct poptOption the_load_opts[] = {
- /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
- {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
- {"all", 'a', POPT_ARG_NONE, 0, OPT_ALL, 0, 0},
- {"input-path", 'i', POPT_ARG_STRING, &the_opt_input_path, 0, 0, 0},
- {"force", 'f', POPT_ARG_NONE, 0, OPT_FORCE, 0, 0},
- {"override-url", 0, POPT_ARG_STRING, &the_opt_override_url, 0, 0, 0},
- {"override-name", 0, POPT_ARG_STRING, &the_opt_override_session_name, 0, 0, 0},
- {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
- {0, 0, 0, 0, 0, 0, 0}
-};
-
-static int mi_partial_session(const char *session_name)
-{
- int ret;
- LTTNG_ASSERT(the_writer);
- LTTNG_ASSERT(session_name);
-
- /* Open session element */
- ret = mi_lttng_writer_open_element(the_writer, config_element_session);
- if (ret) {
- goto end;
- }
-
- ret = mi_lttng_writer_write_element_string(the_writer, config_element_name,
- session_name);
- if (ret) {
- goto end;
- }
-
- /* Closing session element */
- ret = mi_lttng_writer_close_element(the_writer);
-end:
- return ret;
-}
-
-/*
- * Mi print of load command
- */
-static int mi_load_print(const char *session_name)
-{
- int ret;
- LTTNG_ASSERT(the_writer);
-
- if (the_opt_load_all) {
- /* We use a wildcard to represent all sessions */
- session_name = "*";
- }
-
- /* Print load element */
- ret = mi_lttng_writer_open_element(the_writer, mi_lttng_element_load);
- if (ret) {
- goto end;
- }
-
- /* Print session element */
- ret = mi_partial_session(session_name);
- if (ret) {
- goto end;
- }
-
- /* Path element */
- if (the_opt_input_path) {
- ret = mi_lttng_writer_write_element_string(the_writer, config_element_path,
- the_opt_input_path);
- if (ret) {
- goto end;
- }
- }
-
- /* Print override elements */
- ret = mi_lttng_writer_open_element(the_writer, mi_lttng_element_load_overrides);
- if (ret) {
- goto end;
- }
-
- /* Session name override element */
- if (the_opt_override_session_name) {
- ret = mi_lttng_writer_write_element_string(the_writer,
- config_element_name, the_opt_override_session_name);
- if (ret) {
- goto end;
- }
- }
-
- /* Session url override element */
- if (the_opt_override_url) {
- ret = mi_lttng_writer_write_element_string(the_writer,
- mi_lttng_element_load_override_url,
- the_opt_override_url);
- if (ret) {
- goto end;
- }
- }
-
- /* Close override and load element */
- ret = mi_lttng_close_multi_element(the_writer, 2);
-end:
- return ret;
-}
-
-/*
- * The 'load <options>' first level command
- */
-int cmd_load(int argc, const char **argv)
-{
- int ret, success;
- int opt;
- poptContext pc;
- struct lttng_load_session_attr *session_attr = NULL;
- char *input_path = NULL;
- const char *leftover = NULL;
-
- pc = poptGetContext(NULL, argc, argv, the_load_opts, 0);
- poptReadDefaultConfig(pc, 0);
-
- while ((opt = poptGetNextOpt(pc)) != -1) {
- switch (opt) {
- case OPT_HELP:
- SHOW_HELP();
- ret = CMD_SUCCESS;
- goto end;
- case OPT_ALL:
- the_opt_load_all = 1;
- break;
- case OPT_LIST_OPTIONS:
- list_cmd_options(stdout, the_load_opts);
- ret = CMD_SUCCESS;
- goto end;
- case OPT_FORCE:
- the_opt_force = 1;
- break;
- default:
- ret = CMD_UNDEFINED;
- goto end;
- }
- }
-
- ret = lttng_session_daemon_alive();
- if (!ret) {
- ERR("No session daemon is available");
- ret = CMD_ERROR;
- goto end;
- }
-
- if (!the_opt_load_all) {
- the_session_name = poptGetArg(pc);
- if (the_session_name) {
- DBG2("Loading session name: %s", the_session_name);
- } else {
- /* Default to load_all */
- the_opt_load_all = 1;
- }
- }
-
- leftover = poptGetArg(pc);
- if (leftover) {
- ERR("Unknown argument: %s", leftover);
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Mi check */
- if (lttng_opt_mi) {
- the_writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
- if (!the_writer) {
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Open command element */
- ret = mi_lttng_writer_command_open(the_writer,
- mi_lttng_element_command_load);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Open output element */
- ret = mi_lttng_writer_open_element(the_writer,
- mi_lttng_element_command_output);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
- }
-
- /* Prepare load attributes */
- session_attr = lttng_load_session_attr_create();
- if (!session_attr) {
- ERR("Failed to create load session attributes");
- ret = CMD_ERROR;
- goto end;
- }
-
- /*
- * Set the input url
- * lttng_load_session_attr_set_input_url only suppports absolute path.
- * Use realpath to resolve any relative path.
- * */
- if (the_opt_input_path) {
- input_path = realpath(the_opt_input_path, NULL);
- if (!input_path) {
- PERROR("Invalid input path");
- ret = CMD_ERROR;
- goto end;
- }
- } else {
- input_path = NULL;
- }
-
- ret = lttng_load_session_attr_set_input_url(session_attr,
- input_path);
- if (ret) {
- ERR("Invalid input path");
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Set the session name. NULL means all sessions should be loaded */
- ret = lttng_load_session_attr_set_session_name(session_attr,
- the_session_name);
- if (ret) {
- ERR("Invalid session name");
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Set the overwrite attribute */
- ret = lttng_load_session_attr_set_overwrite(session_attr, the_opt_force);
- if (ret) {
- ERR("Force argument could not be applied");
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Set the overrides attributes if any */
- if (the_opt_override_url) {
- ret = lttng_load_session_attr_set_override_url(session_attr,
- the_opt_override_url);
- if (ret) {
- ERR("Url override is invalid");
- goto end;
- }
- }
-
- if (the_opt_override_session_name) {
- if (the_opt_load_all) {
- ERR("Options --all and --override-name cannot be used simultaneously");
- ret = CMD_ERROR;
- goto end;
- }
- ret = lttng_load_session_attr_set_override_session_name(session_attr,
- the_opt_override_session_name);
- if (ret) {
- ERR("Failed to set session name override");
- ret = CMD_ERROR;
- goto end;
- }
- }
-
- ret = lttng_load_session(session_attr);
- if (ret) {
- ERR("%s", lttng_strerror(ret));
- success = 0;
- ret = CMD_ERROR;
- } else {
- if (the_opt_load_all) {
- MSG("All sessions have been loaded successfully");
- } else if (the_session_name) {
- ret = config_init((char *) the_session_name);
- if (ret < 0) {
- WARN("Could not set %s as the default session",
- the_session_name);
- }
- MSG("Session %s has been loaded successfully", the_session_name);
- } else {
- MSG("Session has been loaded successfully");
- }
-
- if (the_opt_override_session_name) {
- MSG("Session name overridden with %s",
- the_opt_override_session_name);
- }
-
- if (the_opt_override_url) {
- MSG("Session output url overridden with %s", the_opt_override_url);
- }
- success = 1;
- ret = CMD_SUCCESS;
- }
-
- /* Mi Printing and closing */
- if (lttng_opt_mi) {
- /* Mi print */
- ret = mi_load_print(the_session_name);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Close output element */
- ret = mi_lttng_writer_close_element(the_writer);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Success ? */
- ret = mi_lttng_writer_write_element_bool(the_writer,
- mi_lttng_element_command_success, success);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Command element close */
- ret = mi_lttng_writer_command_close(the_writer);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
- }
-end:
- if (the_writer && mi_lttng_writer_destroy(the_writer)) {
- ERR("Failed to destroy mi lttng writer");
- }
-
- lttng_load_session_attr_destroy(session_attr);
- free(input_path);
- poptFreeContext(pc);
- return ret;
-}
projects / lttng-tools.git / blobdiff