[fio.git] / fio.c

/*
 * fio - the flexible io tester
 *
 * Copyright (C) 2005 Jens Axboe <axboe@suse.de>
 * Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk>
 *
 * The license below covers all files distributed with fio unless otherwise
 * noted in the file itself.
 *
 *  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.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <limits.h>
#include <signal.h>
#include <time.h>
#include <locale.h>
#include <assert.h>
#include <time.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/mman.h>

#include "fio.h"
#include "hash.h"
#include "smalloc.h"
#include "verify.h"
#include "trim.h"
#include "diskutil.h"
#include "profile.h"
#include "lib/rand.h"
#include "memalign.h"
#include "server.h"

unsigned long page_mask;
unsigned long page_size;

static int endian_check(void)
{
	union {
		uint8_t c[8];
		uint64_t v;
	} u;
	int le = 0, be = 0;

	u.v = 0x12;
	if (u.c[7] == 0x12)
		be = 1;
	else if (u.c[0] == 0x12)
		le = 1;

#if defined(FIO_LITTLE_ENDIAN)
	if (be)
		return 1;
#elif defined(FIO_BIG_ENDIAN)
	if (le)
		return 1;
#else
	return 1;
#endif

	if (!le && !be)
		return 1;

	return 0;
}

int main(int argc, char *argv[], char *envp[])
{
	long ps;

	if (endian_check()) {
		log_err("fio: endianness settings appear wrong.\n");
		log_err("fio: please report this to fio@vger.kernel.org\n");
		return 1;
	}

	arch_init(envp);

	sinit();

	/*
	 * We need locale for number printing, if it isn't set then just
	 * go with the US format.
	 */
	if (!getenv("LC_NUMERIC"))
		setlocale(LC_NUMERIC, "en_US");

	ps = sysconf(_SC_PAGESIZE);
	if (ps < 0) {
		log_err("Failed to get page size\n");
		return 1;
	}

	page_size = ps;
	page_mask = ps - 1;

	fio_keywords_init();

	if (parse_options(argc, argv))
		return 1;

	if (nr_clients)
		return fio_handle_clients();
	else
		return fio_backend();
}
Commit	Line	Data
ebac4655 JA	1	/*
	2	* fio - the flexible io tester
	3	*
	4	* Copyright (C) 2005 Jens Axboe <axboe@suse.de>
2e1df07d	5	* Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk>
ebac4655	6	*
8e9fe637 JA	7	* The license below covers all files distributed with fio unless otherwise
	8	* noted in the file itself.
	9	*
ebac4655	10	* This program is free software; you can redistribute it and/or modify
8e9fe637 JA	11	* it under the terms of the GNU General Public License version 2 as
8e9fe637 JA	12	* published by the Free Software Foundation.
ebac4655 JA	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	22	*
	23	*/
ebac4655 JA	24	#include <unistd.h>
	25	#include <fcntl.h>
	26	#include <string.h>
9b836561	27	#include <limits.h>
ebac4655 JA	28	#include <signal.h>
ebac4655 JA	29	#include <time.h>
dbe1125e	30	#include <locale.h>
36167d82	31	#include <assert.h>
a5b01f1b	32	#include <time.h>
ebac4655 JA	33	#include <sys/stat.h>
	34	#include <sys/wait.h>
	35	#include <sys/ipc.h>
	36	#include <sys/shm.h>
ebac4655 JA	37	#include <sys/mman.h>
	38
	39	#include "fio.h"
210f43b3	40	#include "hash.h"
2e5cdb11	41	#include "smalloc.h"
4f5af7b2	42	#include "verify.h"
a917a8b3	43	#include "trim.h"
7c9b1bce	44	#include "diskutil.h"
07b3232d	45	#include "profile.h"
d54a144d	46	#include "lib/rand.h"
91aea6ec	47	#include "memalign.h"
009b1be4	48	#include "server.h"
ebac4655	49
cfc99db7 JA	50	unsigned long page_mask;
cfc99db7 JA	51	unsigned long page_size;
d529ee19	52
0ad5edcc JA	53	static int endian_check(void)
	54	{
	55	union {
	56	uint8_t c[8];
	57	uint64_t v;
	58	} u;
	59	int le = 0, be = 0;
	60
	61	u.v = 0x12;
	62	if (u.c[7] == 0x12)
	63	be = 1;
	64	else if (u.c[0] == 0x12)
	65	le = 1;
	66
	67	#if defined(FIO_LITTLE_ENDIAN)
	68	if (be)
	69	return 1;
	70	#elif defined(FIO_BIG_ENDIAN)
	71	if (le)
	72	return 1;
	73	#else
	74	return 1;
	75	#endif
	76
	77	if (!le && !be)
	78	return 1;
	79
	80	return 0;
	81	}
	82
50d16976 JA	83	int main(int argc, char argv[], char envp[])
	84	{
	85	long ps;
	86
0ad5edcc JA	87	if (endian_check()) {
	88	log_err("fio: endianness settings appear wrong.\n");
	89	log_err("fio: please report this to fio@vger.kernel.org\n");
	90	return 1;
	91	}
	92
50d16976 JA	93	arch_init(envp);
	94
	95	sinit();
	96
	97	/*
	98	* We need locale for number printing, if it isn't set then just
	99	* go with the US format.
	100	*/
	101	if (!getenv("LC_NUMERIC"))
	102	setlocale(LC_NUMERIC, "en_US");
	103
	104	ps = sysconf(_SC_PAGESIZE);
	105	if (ps < 0) {
	106	log_err("Failed to get page size\n");
	107	return 1;
	108	}
	109
	110	page_size = ps;
	111	page_mask = ps - 1;
	112
	113	fio_keywords_init();
	114
	115	if (parse_options(argc, argv))
	116	return 1;
	117
2e1df07d JA	118	if (nr_clients)
	119	return fio_handle_clients();
	120	else
	121	return fio_backend();
50d16976	122	}