+++ /dev/null
-/*
- * Copyright (C) 2017 Julien Desfossez <jdesfossez@efficios.com>
- *
- * SPDX-License-Identifier: GPL-2.0-only
- *
- */
-
-#define _LGPL_SOURCE
-#include <popt.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <inttypes.h>
-#include <ctype.h>
-
-#include <common/sessiond-comm/sessiond-comm.h>
-#include <common/mi-lttng.h>
-
-#include "../command.h"
-#include <lttng/lttng.h>
-
-static char *opt_session_name;
-static struct mi_writer *writer;
-
-#ifdef LTTNG_EMBED_HELP
-static const char help_msg[] =
-#include <lttng-disable-rotation.1.h>
-;
-#endif
-
-enum {
- OPT_HELP = 1,
- OPT_LIST_OPTIONS,
- OPT_TIMER,
- OPT_SIZE,
-};
-
-static struct poptOption long_options[] = {
- /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
- {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
- {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
- {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0},
- {"timer", 0, POPT_ARG_NONE, 0, OPT_TIMER, 0, 0},
- {"size", 0, POPT_ARG_NONE, 0, OPT_SIZE, 0, 0},
- {0, 0, 0, 0, 0, 0, 0}
-};
-
-static const char *schedule_type_str[] = {
- [LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC] = "periodic",
- [LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD] = "size-based",
-};
-
-static const struct lttng_rotation_schedule *get_schedule(
- const char *session_name,
- const struct lttng_rotation_schedules *schedules,
- enum lttng_rotation_schedule_type schedule_type)
-{
- unsigned int count, i;
- enum lttng_rotation_status status;
- const struct lttng_rotation_schedule *ret = NULL;
-
- status = lttng_rotation_schedules_get_count(schedules, &count);
- if (status != LTTNG_ROTATION_STATUS_OK) {
- ERR("Unable to determine the number of rotation schedules of session %s",
- session_name);
- goto end;
- }
-
- for (i = 0; i < count; i++) {
- const struct lttng_rotation_schedule *schedule = NULL;
-
- schedule = lttng_rotation_schedules_get_at_index(schedules, i);
- if (!schedule) {
- ERR("Unable to retrieve rotation schedule at index %u",
- i);
- goto end;
- }
-
- if (lttng_rotation_schedule_get_type(schedule) ==
- schedule_type) {
- ret = schedule;
- break;
- }
- }
-
- if (!ret) {
- ERR("No %s rotation schedule active on session %s",
- schedule_type_str[schedule_type], session_name);
- }
-end:
- return ret;
-}
-
-static struct lttng_rotation_schedule *create_empty_schedule(
- enum lttng_rotation_schedule_type type)
-{
- struct lttng_rotation_schedule *schedule = NULL;
-
- switch (type) {
- case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC:
- schedule = lttng_rotation_schedule_periodic_create();
- break;
- case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD:
- schedule = lttng_rotation_schedule_size_threshold_create();
- break;
- default:
- abort();
- }
- return schedule;
-}
-
-static enum cmd_error_code remove_schedule(const char *session_name,
- enum lttng_rotation_schedule_type schedule_type)
-{
- enum cmd_error_code cmd_ret;
- int ret;
- const struct lttng_rotation_schedule *schedule = NULL;
- struct lttng_rotation_schedules *schedules = NULL;
- enum lttng_rotation_status status;
- const char *schedule_type_name;
- struct lttng_rotation_schedule *empty_schedule = NULL;
-
- switch (schedule_type) {
- case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC:
- case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD:
- break;
- default:
- ERR("Unknown schedule type");
- abort();
- }
-
- schedule_type_name = schedule_type_str[schedule_type];
-
- ret = lttng_session_list_rotation_schedules(session_name, &schedules);
- if (ret != LTTNG_OK) {
- ERR("Failed to list rotation schedules of session %s",
- session_name);
- goto error;
- }
-
- schedule = get_schedule(session_name, schedules, schedule_type);
- if (!schedule) {
- cmd_ret = CMD_ERROR;
- /*
- * get_schedule() logs its own errors.
- * A temporaty schedule is created to serialize an MI rotation
- * schedule descriptor of the appropriate type that has no
- * attributes set.
- */
- empty_schedule = create_empty_schedule(schedule_type);
- if (!empty_schedule) {
- goto error;
- }
- goto skip_removal;
- }
-
- status = lttng_session_remove_rotation_schedule(session_name, schedule);
- switch (status) {
- case LTTNG_ROTATION_STATUS_OK:
- MSG("Disabled %s rotation on session %s",
- schedule_type_name, session_name);
- cmd_ret = CMD_SUCCESS;
- break;
- case LTTNG_ROTATION_STATUS_SCHEDULE_NOT_SET:
- ERR("No %s rotation schedule set on session %s",
- schedule_type_name,
- session_name);
- cmd_ret = CMD_ERROR;
- break;
- case LTTNG_ROTATION_STATUS_ERROR:
- case LTTNG_ROTATION_STATUS_INVALID:
- default:
- ERR("Failed to disable %s rotation schedule on session %s",
- schedule_type_name, session_name);
- cmd_ret = CMD_ERROR;
- break;
- }
-
-skip_removal:
- if (lttng_opt_mi) {
- ret = mi_lttng_rotation_schedule_result(writer,
- schedule ? schedule : empty_schedule,
- cmd_ret == CMD_SUCCESS);
- if (ret < 0) {
- goto error;
- }
- }
-
-end:
- lttng_rotation_schedules_destroy(schedules);
- lttng_rotation_schedule_destroy(empty_schedule);
- return cmd_ret;
-error:
- cmd_ret = CMD_ERROR;
- goto end;
-}
-
-/*
- * cmd_disable_rotation
- *
- * The 'disable-rotation <options>' first level command
- */
-int cmd_disable_rotation(int argc, const char **argv)
-{
- int popt_ret, opt, ret = 0;
- enum cmd_error_code cmd_ret = CMD_SUCCESS;
- static poptContext pc;
- char *session_name = NULL;
- bool free_session_name = false;
- bool periodic_rotation = false, size_rotation = false;
-
- pc = poptGetContext(NULL, argc, argv, long_options, 0);
- popt_ret = poptReadDefaultConfig(pc, 0);
- if (popt_ret) {
- cmd_ret = CMD_ERROR;
- ERR("poptReadDefaultConfig");
- 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_TIMER:
- periodic_rotation = true;
- break;
- case OPT_SIZE:
- size_rotation = true;
- break;
- default:
- cmd_ret = CMD_UNDEFINED;
- goto end;
- }
- }
-
- if (opt_session_name == NULL) {
- session_name = get_session_name();
- if (session_name == NULL) {
- goto error;
- }
- free_session_name = true;
- } else {
- session_name = opt_session_name;
- }
-
- /* Mi check */
- if (lttng_opt_mi) {
- writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
- if (!writer) {
- goto error;
- }
-
- /* Open command element */
- ret = mi_lttng_writer_command_open(writer,
- mi_lttng_element_command_disable_rotation);
- if (ret) {
- goto error;
- }
-
- /* Open output element */
- ret = mi_lttng_writer_open_element(writer,
- mi_lttng_element_command_output);
- if (ret) {
- goto error;
- }
- }
-
- if (!periodic_rotation && !size_rotation) {
- ERR("No session rotation schedule type provided.");
- cmd_ret = CMD_ERROR;
- goto close_command;
- }
-
- if (lttng_opt_mi) {
- ret = mi_lttng_writer_open_element(writer,
- mi_lttng_element_rotation_schedule_results);
- if (ret) {
- goto error;
- }
-
- ret = mi_lttng_writer_write_element_string(writer,
- mi_lttng_element_session_name,
- session_name);
- if (ret) {
- goto error;
- }
- }
-
- if (periodic_rotation) {
- /*
- * Continue processing even on error as multiple schedules can
- * be specified at once.
- */
- cmd_ret = remove_schedule(session_name,
- LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC);
- }
-
- if (size_rotation) {
- enum cmd_error_code tmp_ret;
-
- /* Don't overwrite cmd_ret if it already indicates an error. */
- tmp_ret = remove_schedule(session_name,
- LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD);
- cmd_ret = cmd_ret ? cmd_ret : tmp_ret;
- }
-
- if (lttng_opt_mi) {
- /* Close rotation schedule results element */
- ret = mi_lttng_writer_close_element(writer);
- if (ret) {
- goto error;
- }
- }
-
-close_command:
- /* Mi closing */
- if (lttng_opt_mi) {
- /* Close output element */
- ret = mi_lttng_writer_close_element(writer);
- if (ret) {
- goto error;
- }
-
- /* Success ? */
- ret = mi_lttng_writer_write_element_bool(writer,
- mi_lttng_element_command_success,
- cmd_ret == CMD_SUCCESS);
- if (ret) {
- goto error;
- }
-
- /* Command element close */
- ret = mi_lttng_writer_command_close(writer);
- if (ret) {
- goto error;
- }
- }
-
-end:
- (void) mi_lttng_writer_destroy(writer);
- poptFreeContext(pc);
- if (free_session_name) {
- free(session_name);
- }
- return cmd_ret;
-error:
- cmd_ret = CMD_ERROR;
- goto end;
-}