+++ /dev/null
-/*
- * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
- *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
- *
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#define _LGPL_SOURCE
-#include <assert.h>
-#include <string.h>
-
-#include <common/sessiond-comm/sessiond-comm.h>
-#include <lttng/lttng-error.h>
-#include <lttng/snapshot.h>
-#include <lttng/snapshot-internal.h>
-
-#include "lttng-ctl-helper.h"
-
-/*
- * Add an output object to a session identified by name.
- *
- * Return 0 on success or else a negative LTTNG_ERR code.
- */
-int lttng_snapshot_add_output(const char *session_name,
- struct lttng_snapshot_output *output)
-{
- int ret;
- struct lttcomm_session_msg lsm;
- struct lttcomm_lttng_output_id *reply;
-
- if (!session_name || !output) {
- return -LTTNG_ERR_INVALID;
- }
-
- memset(&lsm, 0, sizeof(lsm));
- lsm.cmd_type = LTTNG_SNAPSHOT_ADD_OUTPUT;
-
- lttng_ctl_copy_string(lsm.session.name, session_name,
- sizeof(lsm.session.name));
- memcpy(&lsm.u.snapshot_output.output, output,
- sizeof(lsm.u.snapshot_output.output));
-
- ret = lttng_ctl_ask_sessiond(&lsm, (void **) &reply);
- if (ret < 0) {
- return ret;
- }
-
- output->id = reply->id;
- free(reply);
-
- return 0;
-}
-
-/*
- * Delete an output object to a session identified by name.
- *
- * Return 0 on success or else a negative LTTNG_ERR code.
- */
-int lttng_snapshot_del_output(const char *session_name,
- struct lttng_snapshot_output *output)
-{
- struct lttcomm_session_msg lsm;
-
- if (!session_name || !output) {
- return -LTTNG_ERR_INVALID;
- }
-
- memset(&lsm, 0, sizeof(lsm));
- lsm.cmd_type = LTTNG_SNAPSHOT_DEL_OUTPUT;
-
- lttng_ctl_copy_string(lsm.session.name, session_name,
- sizeof(lsm.session.name));
- memcpy(&lsm.u.snapshot_output.output, output,
- sizeof(lsm.u.snapshot_output.output));
-
- return lttng_ctl_ask_sessiond(&lsm, NULL);
-}
-
-/*
- * List all snapshot output(s) of a session identified by name. The output list
- * object is populated and can be iterated over with the get_next call below.
- *
- * Return 0 on success or else a negative LTTNG_ERR code and the list pointer
- * is untouched.
- */
-int lttng_snapshot_list_output(const char *session_name,
- struct lttng_snapshot_output_list **list)
-{
- int ret;
- struct lttcomm_session_msg lsm;
- struct lttng_snapshot_output_list *new_list = NULL;
-
- if (!session_name || !list) {
- ret = -LTTNG_ERR_INVALID;
- goto error;
- }
-
- memset(&lsm, 0, sizeof(lsm));
- lsm.cmd_type = LTTNG_SNAPSHOT_LIST_OUTPUT;
-
- lttng_ctl_copy_string(lsm.session.name, session_name,
- sizeof(lsm.session.name));
-
- new_list = zmalloc(sizeof(*new_list));
- if (!new_list) {
- ret = -LTTNG_ERR_NOMEM;
- goto error;
- }
-
- ret = lttng_ctl_ask_sessiond(&lsm, (void **) &new_list->array);
- if (ret < 0) {
- goto free_error;
- }
-
- new_list->count = ret / sizeof(struct lttng_snapshot_output);
- *list = new_list;
- return 0;
-
-free_error:
- free(new_list);
-error:
- return ret;
-}
-
-/*
- * Return the next available snapshot output object in the given list. A list
- * output command MUST have been done before.
- *
- * Return the next object on success or else NULL indicating the end of the
- * list.
- */
-struct lttng_snapshot_output *lttng_snapshot_output_list_get_next(
- struct lttng_snapshot_output_list *list)
-{
- struct lttng_snapshot_output *output = NULL;
-
- if (!list) {
- goto error;
- }
-
- /* We've reached the end. */
- if (list->index == list->count) {
- goto end;
- }
-
- output = &list->array[list->index];
- list->index++;
-
-end:
-error:
- return output;
-}
-
-/*
- * Free an output list object.
- */
-void lttng_snapshot_output_list_destroy(struct lttng_snapshot_output_list *list)
-{
- if (!list) {
- return;
- }
-
- free(list->array);
- free(list);
-}
-
-/*
- * Snapshot a trace for the given session.
- *
- * The output object can be NULL but an add output MUST be done prior to this
- * call. If it's not NULL, it will be used to snapshot a trace.
- *
- * The wait parameter is ignored for now. The snapshot record command will
- * ALWAYS wait for the snapshot to complete before returning meaning the
- * snapshot has been written on disk or streamed over the network to a relayd.
- *
- * Return 0 on success or else a negative LTTNG_ERR value.
- */
-int lttng_snapshot_record(const char *session_name,
- struct lttng_snapshot_output *output, int wait)
-{
- struct lttcomm_session_msg lsm;
-
- if (!session_name) {
- return -LTTNG_ERR_INVALID;
- }
-
- memset(&lsm, 0, sizeof(lsm));
- lsm.cmd_type = LTTNG_SNAPSHOT_RECORD;
-
- lttng_ctl_copy_string(lsm.session.name, session_name,
- sizeof(lsm.session.name));
-
- /*
- * Not having an output object will use the default one of the session that
- * would need to be set by a call to add output prior to calling snapshot
- * record.
- */
- if (output) {
- memcpy(&lsm.u.snapshot_record.output, output,
- sizeof(lsm.u.snapshot_record.output));
- }
-
- /* The wait param is ignored. */
-
- return lttng_ctl_ask_sessiond(&lsm, NULL);
-}
-
-/*
- * Return an newly allocated snapshot output object or NULL on error.
- */
-struct lttng_snapshot_output *lttng_snapshot_output_create(void)
-{
- struct lttng_snapshot_output *output;
-
- output = zmalloc(sizeof(struct lttng_snapshot_output));
- if (!output) {
- goto error;
- }
-
- output->max_size = (uint64_t) -1ULL;
-
-error:
- return output;
-}
-
-/*
- * Free a given snapshot output object.
- */
-void lttng_snapshot_output_destroy(struct lttng_snapshot_output *obj)
-{
- if (obj) {
- free(obj);
- }
-}
-
-/*
- * Getter family functions of snapshot output.
- */
-
-uint32_t lttng_snapshot_output_get_id(struct lttng_snapshot_output *output)
-{
- return output->id;
-}
-
-const char *lttng_snapshot_output_get_name(
- struct lttng_snapshot_output *output)
-{
- return output->name;
-}
-
-const char *lttng_snapshot_output_get_data_url(struct lttng_snapshot_output *output)
-{
- return output->data_url;
-}
-
-const char *lttng_snapshot_output_get_ctrl_url(struct lttng_snapshot_output *output)
-{
- return output->ctrl_url;
-}
-
-uint64_t lttng_snapshot_output_get_maxsize(
- struct lttng_snapshot_output *output)
-{
- return output->max_size;
-}
-
-/*
- * Setter family functions for snapshot output.
- */
-
-int lttng_snapshot_output_set_id(uint32_t id,
- struct lttng_snapshot_output *output)
-{
- if (!output || id == 0) {
- return -LTTNG_ERR_INVALID;
- }
-
- output->id = id;
- return 0;
-}
-
-int lttng_snapshot_output_set_size(uint64_t size,
- struct lttng_snapshot_output *output)
-{
- if (!output) {
- return -LTTNG_ERR_INVALID;
- }
-
- output->max_size = size;
- return 0;
-}
-
-int lttng_snapshot_output_set_name(const char *name,
- struct lttng_snapshot_output *output)
-{
- if (!output || !name) {
- return -LTTNG_ERR_INVALID;
- }
-
- lttng_ctl_copy_string(output->name, name, sizeof(output->name));
- return 0;
-}
-
-int lttng_snapshot_output_set_ctrl_url(const char *url,
- struct lttng_snapshot_output *output)
-{
- if (!output || !url) {
- return -LTTNG_ERR_INVALID;
- }
-
- lttng_ctl_copy_string(output->ctrl_url, url, sizeof(output->ctrl_url));
- return 0;
-}
-
-int lttng_snapshot_output_set_data_url(const char *url,
- struct lttng_snapshot_output *output)
-{
- if (!output || !url) {
- return -LTTNG_ERR_INVALID;
- }
-
- lttng_ctl_copy_string(output->data_url, url, sizeof(output->data_url));
- return 0;
-}
projects / lttng-tools.git / blobdiff