linux/tools/perf/util/namespaces.c

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * Copyright (C) 2017 Hari Bathini, IBM Corporation
 */

#include "namespaces.h"
#include "util.h"
#include "event.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

struct namespaces *namespaces__new(struct namespaces_event *event)
{
	struct namespaces *namespaces;
	u64 link_info_size = ((event ? event->nr_namespaces : NR_NAMESPACES) *
			      sizeof(struct perf_ns_link_info));

	namespaces = zalloc(sizeof(struct namespaces) + link_info_size);
	if (!namespaces)
		return NULL;

	namespaces->end_time = -1;

	if (event)
		memcpy(namespaces->link_info, event->link_info, link_info_size);

	return namespaces;
}

void namespaces__free(struct namespaces *namespaces)
{
	free(namespaces);
}