+++ /dev/null
-/*
- * Copyright (C) 2013 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 "../command.h"
-#include <lttng/lttng.h>
-
-static char *opt_output_path;
-static bool opt_force;
-static bool opt_save_all;
-static struct mi_writer *writer;
-
-#ifdef LTTNG_EMBED_HELP
-static const char help_msg[] =
-#include <lttng-save.1.h>
-;
-#endif
-
-enum {
- OPT_HELP = 1,
- OPT_ALL,
- OPT_FORCE,
- OPT_LIST_OPTIONS,
-};
-
-static struct poptOption save_opts[] = {
- /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
- {"help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL},
- {"all", 'a', POPT_ARG_NONE, NULL, OPT_ALL, NULL, NULL},
- {"output-path", 'o', POPT_ARG_STRING, &opt_output_path, 0, NULL, NULL},
- {"force", 'f', POPT_ARG_NONE, NULL, OPT_FORCE, NULL, NULL},
- {"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(writer);
- LTTNG_ASSERT(session_name);
-
- /* Open session element */
- ret = mi_lttng_writer_open_element(writer, config_element_session);
- if (ret) {
- goto end;
- }
-
- ret = mi_lttng_writer_write_element_string(writer, config_element_name,
- session_name);
- if (ret) {
- goto end;
- }
-
- /* Closing session element */
- ret = mi_lttng_writer_close_element(writer);
-end:
- return ret;
-}
-
-/*
- * Mi print of save command
- */
-static int mi_save_print(const char *session_name)
-{
- int ret;
- LTTNG_ASSERT(writer);
-
- if (opt_save_all) {
- /* We use a wildcard to represent all sessions */
- session_name = "*";
- }
-
- /* Print save element */
- ret = mi_lttng_writer_open_element(writer, mi_lttng_element_save);
- if (ret) {
- goto end;
- }
-
- /* Print session element */
- ret = mi_partial_session(session_name);
- if (ret) {
- goto end;
- }
-
- /* Path element */
- if (opt_output_path) {
- ret = mi_lttng_writer_write_element_string(writer, config_element_path,
- opt_output_path);
- if (ret) {
- goto end;
- }
- }
-
- /* Close save element */
- ret = mi_lttng_writer_close_element(writer);
-end:
- return ret;
-}
-
-/*
- * The 'save <options>' first level command
- */
-int cmd_save(int argc, const char **argv)
-{
- int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success;
- int opt;
- const char *session_name = NULL, *leftover = NULL;
- poptContext pc;
- struct lttng_save_session_attr *attr;
-
- pc = poptGetContext(NULL, argc, argv, save_opts, 0);
- poptReadDefaultConfig(pc, 0);
-
- while ((opt = poptGetNextOpt(pc)) != -1) {
- switch (opt) {
- case OPT_HELP:
- SHOW_HELP();
- goto end;
- case OPT_ALL:
- opt_save_all = true;
- break;
- case OPT_FORCE:
- opt_force = true;
- break;
- case OPT_LIST_OPTIONS:
- list_cmd_options(stdout, save_opts);
- goto end;
- default:
- ret = CMD_UNDEFINED;
- goto end;
- }
- }
-
- if (!opt_save_all) {
- session_name = poptGetArg(pc);
- if (session_name) {
- DBG2("Session name: %s", session_name);
- } else {
- /* default to opt_save_all */
- opt_save_all = true;
- }
- }
-
- leftover = poptGetArg(pc);
- if (leftover) {
- ERR("Unknown argument: %s", leftover);
- ret = CMD_ERROR;
- goto end;
- }
-
- attr = lttng_save_session_attr_create();
- if (!attr) {
- ret = CMD_FATAL;
- goto end_destroy;
- }
-
- if (lttng_save_session_attr_set_session_name(attr, session_name)) {
- ret = CMD_ERROR;
- goto end_destroy;
- }
-
- if (lttng_save_session_attr_set_overwrite(attr, opt_force)) {
- ret = CMD_ERROR;
- goto end_destroy;
- }
-
- if (lttng_save_session_attr_set_output_url(attr, opt_output_path)) {
- ret = CMD_ERROR;
- goto end_destroy;
- }
-
- /* Mi check */
- if (lttng_opt_mi) {
- writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
- if (!writer) {
- ret = -LTTNG_ERR_NOMEM;
- goto end_destroy;
- }
-
- /* Open command element */
- ret = mi_lttng_writer_command_open(writer,
- mi_lttng_element_command_save);
- if (ret) {
- ret = CMD_ERROR;
- goto end_destroy;
- }
-
- /* Open output element */
- ret = mi_lttng_writer_open_element(writer,
- mi_lttng_element_command_output);
- if (ret) {
- ret = CMD_ERROR;
- goto end_destroy;
- }
- }
-
- command_ret = lttng_save_session(attr);
- if (command_ret < 0) {
- ERR("%s", lttng_strerror(command_ret));
- success = 0;
- } else {
- /* Inform the user of what just happened on success. */
- if (session_name && opt_output_path) {
- MSG("Session %s saved successfully in %s.", session_name,
- opt_output_path);
- } else if (session_name && !opt_output_path) {
- MSG("Session %s saved successfully.", session_name);
- } else if (!session_name && opt_output_path) {
- MSG("All sessions have been saved successfully in %s.",
- opt_output_path);
- } else {
- MSG("All sessions have been saved successfully.");
- }
- success = 1;
- }
-
- /* Mi Printing and closing */
- if (lttng_opt_mi) {
- /* Mi print */
- ret = mi_save_print(session_name);
- if (ret) {
- ret = CMD_ERROR;
- goto end_destroy;
- }
-
- /* Close output element */
- ret = mi_lttng_writer_close_element(writer);
- if (ret) {
- ret = CMD_ERROR;
- goto end_destroy;
- }
-
- /* Success ? */
- ret = mi_lttng_writer_write_element_bool(writer,
- mi_lttng_element_command_success, success);
- if (ret) {
- ret = CMD_ERROR;
- goto end_destroy;
- }
-
- /* Command element close */
- ret = mi_lttng_writer_command_close(writer);
- if (ret) {
- ret = CMD_ERROR;
- goto end_destroy;
- }
- }
-end_destroy:
- lttng_save_session_attr_destroy(attr);
-end:
- /* Mi clean-up */
- if (writer && mi_lttng_writer_destroy(writer)) {
- /* Preserve original error code */
- ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL;
- }
-
- /* Overwrite ret if command failed */
- ret = command_ret ? -command_ret : ret;
-
- poptFreeContext(pc);
- return ret;
-}
projects / lttng-tools.git / blobdiff