+++ /dev/null
-/*
- * Copyright (C) 2015 Julien Desfossez <jdesfossez@efficios.com>
- *
- * SPDX-License-Identifier: GPL-2.0-only
- *
- */
-
-#define _LGPL_SOURCE
-#include <ctype.h>
-#include <popt.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <common/mi-lttng.h>
-
-#include "../command.h"
-
-static char *opt_session_name;
-static char *session_name = NULL;
-
-static int regenerate_metadata(int argc, const char **argv);
-static int regenerate_statedump(int argc, const char **argv);
-
-#ifdef LTTNG_EMBED_HELP
-static const char help_msg[] =
-#include <lttng-regenerate.1.h>
-;
-#endif
-
-enum {
- OPT_HELP = 1,
- OPT_LIST_OPTIONS,
- OPT_LIST_COMMANDS,
-};
-
-static struct mi_writer *writer;
-
-static struct poptOption long_options[] = {
- /* { longName, shortName, argInfo, argPtr, value, descrip, argDesc, } */
- { "help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0, },
- { "session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0},
- { "list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, 0, 0, },
- { "list-commands", 0, POPT_ARG_NONE, NULL, OPT_LIST_COMMANDS},
- { 0, 0, 0, 0, 0, 0, 0, },
-};
-
-static struct cmd_struct actions[] = {
- { "metadata", regenerate_metadata },
- { "statedump", regenerate_statedump },
- { NULL, NULL } /* Array closure */
-};
-
-/*
- * Count and return the number of arguments in argv.
- */
-static int count_arguments(const char **argv)
-{
- int i = 0;
-
- LTTNG_ASSERT(argv);
-
- while (argv[i] != NULL) {
- i++;
- }
-
- return i;
-}
-
-static int regenerate_metadata(int argc, const char **argv)
-{
- int ret;
-
- if (argc > 1) {
- ret = CMD_UNDEFINED;
- goto end;
- }
- ret = lttng_regenerate_metadata(session_name);
- if (ret == 0) {
- MSG("Metadata successfully regenerated for session %s", session_name);
- } else {
- ERR("%s", lttng_strerror(ret));
- }
-
-end:
- return ret;
-}
-
-static int regenerate_statedump(int argc, const char **argv)
-{
- int ret;
-
- if (argc > 1) {
- ret = -LTTNG_ERR_INVALID;
- goto end;
- }
- ret = lttng_regenerate_statedump(session_name);
- if (ret == 0) {
- MSG("State dump successfully regenerated for session %s", session_name);
- }
-
-end:
- return ret;
-}
-
-static int handle_command(const char **argv)
-{
- struct cmd_struct *cmd;
- int ret = CMD_SUCCESS, i = 0, argc, command_ret = CMD_SUCCESS;
-
- if (argv == NULL) {
- ERR("No object specified for regenerate command.");
- command_ret = CMD_ERROR;
- goto end;
- }
-
- argc = count_arguments(argv);
- LTTNG_ASSERT(argc >= 1);
-
- cmd = &actions[i];
- while (cmd->func != NULL) {
- /* Find command */
- if (strcmp(argv[0], cmd->name) == 0) {
- if (lttng_opt_mi) {
- /* Action element */
- ret = mi_lttng_writer_open_element(writer,
- mi_lttng_element_command_regenerate_action);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Name of the action */
- ret = mi_lttng_writer_write_element_string(writer,
- config_element_name, argv[0]);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
- }
- command_ret = cmd->func(argc, argv);
- if (lttng_opt_mi) {
- /* Close output and action element */
- ret = mi_lttng_writer_close_element(writer);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
- }
- goto end;
- }
-
- cmd = &actions[i++];
- }
-
- ret = CMD_UNDEFINED;
-
-end:
- /* Overwrite ret if an error occurred in cmd->func() */
- ret = command_ret ? command_ret : ret;
- return ret;
-}
-
-/*
- * regenerate command handling.
- */
-int cmd_regenerate(int argc, const char **argv)
-{
- int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1;
- static poptContext pc;
-
- if (argc < 1) {
- SHOW_HELP();
- ret = CMD_ERROR;
- goto end;
- }
-
- pc = poptGetContext(NULL, argc, argv, long_options, 0);
- poptReadDefaultConfig(pc, 0);
-
- if (lttng_opt_mi) {
- writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
- if (!writer) {
- ret = -LTTNG_ERR_NOMEM;
- goto end;
- }
- /* Open command element */
- ret = mi_lttng_writer_command_open(writer,
- mi_lttng_element_command_regenerate);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Open output element */
- ret = mi_lttng_writer_open_element(writer,
- mi_lttng_element_command_output);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
- }
-
- while ((opt = poptGetNextOpt(pc)) != -1) {
- switch (opt) {
- case OPT_HELP:
- SHOW_HELP();
- goto end;
- case OPT_LIST_OPTIONS:
- list_cmd_options(stdout, long_options);
- goto end;
- case OPT_LIST_COMMANDS:
- list_commands(actions, stdout);
- goto end;
- default:
- SHOW_HELP();
- ret = CMD_UNDEFINED;
- goto end;
- }
- }
-
- if (!opt_session_name) {
- session_name = get_session_name();
- if (session_name == NULL) {
- ret = CMD_ERROR;
- goto end;
- }
- } else {
- session_name = opt_session_name;
- }
-
- command_ret = handle_command(poptGetArgs(pc));
- if (command_ret) {
- success = 0;
- }
-
- if (lttng_opt_mi) {
- /* Close output element */
- ret = mi_lttng_writer_close_element(writer);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Success ? */
- ret = mi_lttng_writer_write_element_bool(writer,
- mi_lttng_element_command_success, success);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
-
- /* Command element close */
- ret = mi_lttng_writer_command_close(writer);
- if (ret) {
- ret = CMD_ERROR;
- goto end;
- }
- }
-
-end:
- /* Mi clean-up */
- if (writer && mi_lttng_writer_destroy(writer)) {
- /* Preserve original error code */
- ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL;
- }
-
- if (!opt_session_name) {
- free(session_name);
- }
-
- /* Overwrite ret if an error occurred during handle_command() */
- ret = command_ret ? command_ret : ret;
-
- poptFreeContext(pc);
- return ret;
-}
projects / lttng-tools.git / blobdiff