+++ /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 <common/utils.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-enable-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_INT, 0, OPT_TIMER, 0, 0},
- {"size", 0, POPT_ARG_INT, 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 enum cmd_error_code add_schedule(const char *session_name,
- enum lttng_rotation_schedule_type schedule_type, uint64_t value)
-{
- enum cmd_error_code ret = CMD_SUCCESS;
- struct lttng_rotation_schedule *schedule = NULL;
- enum lttng_rotation_status status;
- const char *schedule_type_name;
-
- switch (schedule_type) {
- case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC:
- schedule = lttng_rotation_schedule_periodic_create();
- if (!schedule) {
- ret = CMD_ERROR;
- goto end;
- }
- status = lttng_rotation_schedule_periodic_set_period(schedule,
- value);
- break;
- case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD:
- schedule = lttng_rotation_schedule_size_threshold_create();
- if (!schedule) {
- ret = CMD_ERROR;
- goto end;
- }
- status = lttng_rotation_schedule_size_threshold_set_threshold(
- schedule, value);
- break;
- default:
- ERR("Unknown schedule type");
- abort();
- }
-
- schedule_type_name = schedule_type_str[schedule_type];
-
- switch (status) {
- case LTTNG_ROTATION_STATUS_OK:
- break;
- case LTTNG_ROTATION_STATUS_INVALID:
- ERR("Invalid value for %s option", schedule_type_name);
- ret = CMD_ERROR;
- goto end;
- default:
- ERR("Unknown error occurred setting %s rotation schedule",
- schedule_type_name);
- ret = CMD_ERROR;
- goto end;
- }
-
- status = lttng_session_add_rotation_schedule(session_name, schedule);
- switch (status) {
- case LTTNG_ROTATION_STATUS_OK:
- ret = CMD_SUCCESS;
- switch (schedule_type) {
- case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC:
- MSG("Enabled %s rotations every %" PRIu64 " %s on session %s",
- schedule_type_name, value, USEC_UNIT, session_name);
- break;
- case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD:
- MSG("Enabled %s rotations every %" PRIu64 " bytes written on session %s",
- schedule_type_name, value, session_name);
- break;
- default:
- abort();
- }
- break;
- case LTTNG_ROTATION_STATUS_INVALID:
- ERR("Invalid parameter for %s rotation schedule",
- schedule_type_name);
- ret = CMD_ERROR;
- break;
- case LTTNG_ROTATION_STATUS_SCHEDULE_ALREADY_SET:
- ERR("A %s rotation schedule is already set on session %s",
- schedule_type_name,
- session_name);
- ret = CMD_ERROR;
- break;
- case LTTNG_ROTATION_STATUS_ERROR:
- default:
- ERR("Failed to enable %s rotation schedule on session %s",
- schedule_type_name,
- session_name);
- ret = CMD_ERROR;
- break;
- }
-
- if (lttng_opt_mi) {
- int mi_ret;
-
- mi_ret = mi_lttng_rotation_schedule_result(writer,
- schedule, ret == CMD_SUCCESS);
- if (mi_ret < 0) {
- ret = CMD_ERROR;
- goto end;
- }
- }
-
-end:
- lttng_rotation_schedule_destroy(schedule);
- return ret;
-}
-
-/*
- * cmd_enable_rotation
- *
- * The 'enable-rotation <options>' first level command
- */
-int cmd_enable_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;
- char *opt_arg = NULL;
- bool free_session_name = false;
- uint64_t timer_us = 0, size_bytes = 0;
- bool periodic_rotation = false, size_rotation = false;
-
- pc = poptGetContext(NULL, argc, argv, long_options, 0);
- popt_ret = poptReadDefaultConfig(pc, 0);
- if (popt_ret) {
- ERR("poptReadDefaultConfig");
- goto error;
- }
-
- 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:
- errno = 0;
- opt_arg = poptGetOptArg(pc);
- if (errno != 0 || !isdigit(opt_arg[0])) {
- ERR("Invalid value for --timer option: %s", opt_arg);
- goto error;
- }
- if (utils_parse_time_suffix(opt_arg, &timer_us) < 0) {
- ERR("Invalid value for --timer option: %s", opt_arg);
- goto error;
- }
- if (periodic_rotation) {
- ERR("Only one periodic rotation schedule may be set on a session.");
- goto error;
- }
- periodic_rotation = true;
- break;
- case OPT_SIZE:
- errno = 0;
- opt_arg = poptGetOptArg(pc);
- if (utils_parse_size_suffix(opt_arg, &size_bytes) < 0) {
- ERR("Invalid value for --size option: %s", opt_arg);
- goto error;
- }
- if (size_rotation) {
- ERR("Only one size-based rotation schedule may be set on a session.");
- goto error;
- }
- 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_enable_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 parameter 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 = add_schedule(session_name,
- LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC,
- timer_us);
- }
-
- if (size_rotation) {
- enum cmd_error_code tmp_ret;
-
- /* Don't overwrite cmd_ret if it already indicates an error. */
- tmp_ret = add_schedule(session_name,
- LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD,
- size_bytes);
- 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;
-}
projects / lttng-tools.git / blobdiff