[fio.git] / filesetup.c

#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <assert.h>
#include <sys/stat.h>
#include <sys/mman.h>

#include "fio.h"
#include "os.h"

/*
 * Check if the file exists and it's large enough.
 */
static int file_ok(struct thread_data *td, struct fio_file *f)
{
	struct stat st;

	if (td->filetype != FIO_TYPE_FILE || (td->io_ops->flags & FIO_NULLIO))
		return 0;

	if (lstat(f->file_name, &st) == -1)
		return 1;

	/*
	 * if it's a special file, size is always ok for now
	 */
	if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode))
		return 0;
	if (st.st_size < (off_t) f->file_size)
		return 1;

	return 0;
}

static int create_file(struct thread_data *td, struct fio_file *f)
{
	unsigned long long left;
	unsigned int bs;
	char *b;
	int r;

	f->fd = open(f->file_name, O_WRONLY | O_CREAT | O_TRUNC, 0644);
	if (f->fd < 0) {
		td_verror(td, errno, "open");
		return 1;
	}

	if (ftruncate(f->fd, f->file_size) == -1) {
		td_verror(td, errno, "ftruncate");
		goto err;
	}

	if (posix_fallocate(f->fd, 0, f->file_size) < 0) {
		td_verror(td, errno, "posix_fallocate");
		goto err;
	}

	b = malloc(td->max_bs[DDIR_WRITE]);
	memset(b, 0, td->max_bs[DDIR_WRITE]);

	left = f->file_size;
	while (left && !td->terminate) {
		bs = td->max_bs[DDIR_WRITE];
		if (bs > left)
			bs = left;

		r = write(f->fd, b, bs);

		if (r == (int) bs) {
			left -= bs;
			continue;
		} else {
			if (r < 0)
				td_verror(td, errno, "write");
			else
				td_verror(td, EIO, "write");

			break;
		}
	}

	if (td->terminate)
		unlink(f->file_name);
	else if (td->create_fsync)
		fsync(f->fd);

	free(b);
	close(f->fd);
	f->fd = -1;
	return 0;
err:
	close(f->fd);
	f->fd = -1;
	return 1;
}

static int create_files(struct thread_data *td)
{
	struct fio_file *f;
	int i, err, need_create;

	for_each_file(td, f, i)
		f->file_size = td->total_file_size / td->nr_files;

	/*
	 * unless specifically asked for overwrite, let normal io extend it
	 */
	if (!td->overwrite)
		return 0;

	need_create = 0;
	if (td->filetype == FIO_TYPE_FILE) {
		for_each_file(td, f, i) {
			int file_there = !file_ok(td, f);

			if (file_there && td->ddir == DDIR_WRITE &&
			    !td->overwrite) {
				unlink(f->file_name);
				file_there = 0;
			}

			need_create += !file_there;
		}
	}

	if (!need_create)
		return 0;

	if (!td->total_file_size) {
		log_err("Need size for create\n");
		td_verror(td, EINVAL, "file_size");
		return 1;
	}

	temp_stall_ts = 1;
	fprintf(f_out, "%s: Laying out IO file(s) (%u x %LuMiB == %LuMiB)\n",
				td->name, td->nr_uniq_files,
				(td->total_file_size >> 20) / td->nr_uniq_files,
				td->total_file_size >> 20);

	err = 0;
	for_each_file(td, f, i) {
		/*
		 * Only unlink files that we created.
		 */
		f->unlink = 0;
		if (file_ok(td, f)) {
			f->unlink = td->unlink;
			err = create_file(td, f);
			if (err)
				break;
		}
	}

	temp_stall_ts = 0;
	return err;
}

static int file_size(struct thread_data *td, struct fio_file *f)
{
	struct stat st;

	/*
	 * if we are not doing real io, just pretend the file is as large
	 * as the size= given. this works fine with nrfiles > 1 as well,
	 * we only really care about it being at least as big as size=
	 */
	if (td->io_ops->flags & FIO_NULLIO) {
		f->real_file_size = f->file_size = td->total_file_size;
		return 0;
	}

	if (td->overwrite) {
		if (fstat(f->fd, &st) == -1) {
			td_verror(td, errno, "fstat");
			return 1;
		}

		f->real_file_size = st.st_size;

		if (!f->file_size || f->file_size > f->real_file_size)
			f->file_size = f->real_file_size;
	} else
		f->real_file_size = f->file_size;

	return 0;
}

static int bdev_size(struct thread_data *td, struct fio_file *f)
{
	unsigned long long bytes;
	int r;

	r = blockdev_size(f->fd, &bytes);
	if (r) {
		td_verror(td, r, "blockdev_size");
		return 1;
	}

	f->real_file_size = bytes;

	/*
	 * no extend possibilities, so limit size to device size if too large
	 */
	if (!f->file_size || f->file_size > f->real_file_size)
		f->file_size = f->real_file_size;

	f->file_size -= f->file_offset;
	return 0;
}

static int get_file_size(struct thread_data *td, struct fio_file *f)
{
	int ret = 0;

	if (td->filetype == FIO_TYPE_FILE)
		ret = file_size(td, f);
	else if (td->filetype == FIO_TYPE_BD)
		ret = bdev_size(td, f);
	else
		f->real_file_size = -1;

	if (ret)
		return ret;

	if (f->file_offset > f->real_file_size) {
		log_err("%s: offset extends end (%Lu > %Lu)\n", td->name, f->file_offset, f->real_file_size);
		return 1;
	}

	return 0;
}

int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
{
	int ret = 0;

	/*
	 * FIXME: add blockdev flushing too
	 */
	if (td->io_ops->flags & FIO_MMAPIO)
		ret = madvise(f->mmap, f->file_size, MADV_DONTNEED);
	else if (td->filetype == FIO_TYPE_FILE)
		ret = fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_DONTNEED);
	else if (td->filetype == FIO_TYPE_BD)
		ret = blockdev_invalidate_cache(f->fd);
	else if (td->filetype == FIO_TYPE_CHAR)
		ret = 0;

	if (ret < 0) {
		td_verror(td, errno, "invalidate_cache");
		return 1;
	}

	return 0;
}

static int __setup_file_mmap(struct thread_data *td, struct fio_file *f)
{
	int flags;

	if (td_rw(td))
		flags = PROT_READ | PROT_WRITE;
	else if (td_write(td)) {
		flags = PROT_WRITE;

		if (td->verify != VERIFY_NONE)
			flags |= PROT_READ;
	} else
		flags = PROT_READ;

	f->mmap = mmap(NULL, f->file_size, flags, MAP_SHARED, f->fd, f->file_offset);
	if (f->mmap == MAP_FAILED) {
		f->mmap = NULL;
		td_verror(td, errno, "mmap");
		return 1;
	}

	if (td->invalidate_cache && file_invalidate_cache(td, f))
		return 1;

	if (td->sequential) {
		if (madvise(f->mmap, f->file_size, MADV_SEQUENTIAL) < 0) {
			td_verror(td, errno, "madvise");
			return 1;
		}
	} else {
		if (madvise(f->mmap, f->file_size, MADV_RANDOM) < 0) {
			td_verror(td, errno, "madvise");
			return 1;
		}
	}

	return 0;
}

static int setup_files_mmap(struct thread_data *td)
{
	struct fio_file *f;
	int i, err = 0;

	for_each_file(td, f, i) {
		err = __setup_file_mmap(td, f);
		if (err)
			break;
	}

	return err;
}

static int __setup_file_plain(struct thread_data *td, struct fio_file *f)
{
	if (td->invalidate_cache && file_invalidate_cache(td, f))
		return 1;

	if (td->sequential) {
		if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_SEQUENTIAL) < 0) {
			td_verror(td, errno, "fadvise");
			return 1;
		}
	} else {
		if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_RANDOM) < 0) {
			td_verror(td, errno, "fadvise");
			return 1;
		}
	}

	return 0;
}

static int setup_files_plain(struct thread_data *td)
{
	struct fio_file *f;
	int i, err = 0;

	for_each_file(td, f, i) {
		err = __setup_file_plain(td, f);
		if (err)
			break;
	}

	return err;
}

static int setup_file(struct thread_data *td, struct fio_file *f)
{
	int flags = 0;

	if (td->io_ops->flags & FIO_NETIO)
		return 0;

	/*
	 * we need a valid file descriptor, but don't create a real file.
	 * lets just dup stdout, seems like a sensible approach.
	 */
	if (td->io_ops->flags & FIO_NULLIO)
		f->fd = dup(STDOUT_FILENO);
	else {
		if (td->odirect)
			flags |= OS_O_DIRECT;
		if (td->sync_io)
			flags |= O_SYNC;

		if (td_write(td) || td_rw(td)) {
			flags |= O_RDWR;

			if (td->filetype == FIO_TYPE_FILE) {
				if (!td->overwrite)
					flags |= O_TRUNC;

				flags |= O_CREAT;
			}

			f->fd = open(f->file_name, flags, 0600);
		} else {
			if (td->filetype == FIO_TYPE_CHAR)
				flags |= O_RDWR;
			else
				flags |= O_RDONLY;

			f->fd = open(f->file_name, flags);
		}
	}

	if (f->fd == -1) {
		int __e = errno;

		td_verror(td, __e, "open");
		if (__e == EINVAL && td->odirect)
			log_err("fio: destination does not support O_DIRECT\n");
		return 1;
	}

	if (get_file_size(td, f))
		return 1;

	return 0;
}

int open_files(struct thread_data *td)
{
	struct fio_file *f;
	int i, err = 0;

	for_each_file(td, f, i) {
		err = setup_file(td, f);
		if (err)
			break;
	}

	if (!err)
		return 0;

	for_each_file(td, f, i) {
		if (f->fd != -1) {
			close(f->fd);
			f->fd = -1;
		}
	}

	return err;
}

int setup_files(struct thread_data *td)
{
	struct fio_file *f;
	int err, i;

	/*
	 * if ioengine defines a setup() method, it's responsible for
	 * setting up everything in the td->files[] area.
	 */
	if (td->io_ops->setup)
		return td->io_ops->setup(td);

	if (create_files(td))
		return 1;

	err = open_files(td);
	if (err)
		return err;

	/*
	 * Recalculate the total file size now that files are set up.
	 */
	td->total_file_size = 0;
	for_each_file(td, f, i)
		td->total_file_size += f->file_size;

	td->io_size = td->total_file_size;
	if (td->io_size == 0) {
		log_err("%s: no io blocks\n", td->name);
		td_verror(td, EINVAL, "total_file_size");
		return 1;
	}

	if (!td->zone_size)
		td->zone_size = td->io_size;

	td->total_io_size = td->io_size * td->loops;

	if (td->io_ops->flags & FIO_MMAPIO)
		err = setup_files_mmap(td);
	else
		err = setup_files_plain(td);

	for_each_file(td, f, i) {
		if (f->fd != -1) {
			close(f->fd);
			f->fd = -1;
		}
	}

	return err;
}

void close_files(struct thread_data *td)
{
	struct fio_file *f;
	int i;

	for_each_file(td, f, i) {
		if (!td->filename && f->unlink &&
		    td->filetype == FIO_TYPE_FILE) {
			unlink(f->file_name);
			free(f->file_name);
			f->file_name = NULL;
		}
		if (f->fd != -1) {
			close(f->fd);
			f->fd = -1;
		}
		if (f->mmap) {
			munmap(f->mmap, f->file_size);
			f->mmap = NULL;
		}
	}

	td->filename = NULL;
	free(td->files);
	td->files = NULL;
	td->nr_files = 0;
}
Commit	Line	Data
53cdc686 JA	1	#include <unistd.h>
	2	#include <fcntl.h>
	3	#include <string.h>
	4	#include <assert.h>
	5	#include <sys/stat.h>
	6	#include <sys/mman.h>
	7
	8	#include "fio.h"
	9	#include "os.h"
	10
25205e97 JA	11	/*
	12	* Check if the file exists and it's large enough.
	13	*/
	14	static int file_ok(struct thread_data td, struct fio_file f)
53cdc686	15	{
b2a15192	16	struct stat st;
53cdc686	17
4d9345ae	18	if (td->filetype != FIO_TYPE_FILE \|\| (td->io_ops->flags & FIO_NULLIO))
b2a15192 JA	19	return 0;
b2a15192 JA	20
fa01d139	21	if (lstat(f->file_name, &st) == -1)
25205e97	22	return 1;
fa01d139 JA	23
	24	/*
	25	* if it's a special file, size is always ok for now
	26	*/
	27	if (S_ISCHR(st.st_mode) \|\| S_ISBLK(st.st_mode))
	28	return 0;
	29	if (st.st_size < (off_t) f->file_size)
25205e97 JA	30	return 1;
	31
	32	return 0;
	33	}
	34
	35	static int create_file(struct thread_data td, struct fio_file f)
	36	{
	37	unsigned long long left;
	38	unsigned int bs;
	39	char *b;
	40	int r;
b2a15192	41
53cdc686 JA	42	f->fd = open(f->file_name, O_WRONLY \| O_CREAT \| O_TRUNC, 0644);
53cdc686 JA	43	if (f->fd < 0) {
e1161c32	44	td_verror(td, errno, "open");
53cdc686 JA	45	return 1;
	46	}
	47
	48	if (ftruncate(f->fd, f->file_size) == -1) {
e1161c32	49	td_verror(td, errno, "ftruncate");
53cdc686 JA	50	goto err;
	51	}
	52
40f8298c	53	if (posix_fallocate(f->fd, 0, f->file_size) < 0) {
e1161c32	54	td_verror(td, errno, "posix_fallocate");
40f8298c JA	55	goto err;
	56	}
	57
a00735e6 JA	58	b = malloc(td->max_bs[DDIR_WRITE]);
a00735e6 JA	59	memset(b, 0, td->max_bs[DDIR_WRITE]);
53cdc686 JA	60
	61	left = f->file_size;
	62	while (left && !td->terminate) {
a00735e6	63	bs = td->max_bs[DDIR_WRITE];
53cdc686 JA	64	if (bs > left)
	65	bs = left;
	66
	67	r = write(f->fd, b, bs);
	68
	69	if (r == (int) bs) {
	70	left -= bs;
	71	continue;
	72	} else {
	73	if (r < 0)
e1161c32	74	td_verror(td, errno, "write");
53cdc686	75	else
e1161c32	76	td_verror(td, EIO, "write");
53cdc686 JA	77
	78	break;
	79	}
	80	}
	81
	82	if (td->terminate)
	83	unlink(f->file_name);
	84	else if (td->create_fsync)
	85	fsync(f->fd);
	86
	87	free(b);
	88	close(f->fd);
	89	f->fd = -1;
	90	return 0;
	91	err:
	92	close(f->fd);
	93	f->fd = -1;
	94	return 1;
	95	}
	96
	97	static int create_files(struct thread_data *td)
	98	{
	99	struct fio_file *f;
25205e97	100	int i, err, need_create;
53cdc686	101
f697125a JA	102	for_each_file(td, f, i)
	103	f->file_size = td->total_file_size / td->nr_files;
	104
53cdc686 JA	105	/*
	106	* unless specifically asked for overwrite, let normal io extend it
	107	*/
f697125a	108	if (!td->overwrite)
53cdc686	109	return 0;
53cdc686	110
25205e97	111	need_create = 0;
eff6861d JA	112	if (td->filetype == FIO_TYPE_FILE) {
	113	for_each_file(td, f, i) {
	114	int file_there = !file_ok(td, f);
	115
3404cefc JA	116	if (file_there && td->ddir == DDIR_WRITE &&
3404cefc JA	117	!td->overwrite) {
eff6861d JA	118	unlink(f->file_name);
	119	file_there = 0;
	120	}
	121
	122	need_create += !file_there;
	123	}
	124	}
25205e97	125
25205e97 JA	126	if (!need_create)
	127	return 0;
	128
f1027063 JA	129	if (!td->total_file_size) {
f1027063 JA	130	log_err("Need size for create\n");
e1161c32	131	td_verror(td, EINVAL, "file_size");
f1027063 JA	132	return 1;
	133	}
	134
53cdc686	135	temp_stall_ts = 1;
1e97cce9	136	fprintf(f_out, "%s: Laying out IO file(s) (%u x %LuMiB == %LuMiB)\n",
13f8e2d2 JA	137	td->name, td->nr_uniq_files,
13f8e2d2 JA	138	(td->total_file_size >> 20) / td->nr_uniq_files,
25205e97	139	td->total_file_size >> 20);
53cdc686 JA	140
	141	err = 0;
	142	for_each_file(td, f, i) {
9b031dc8 JA	143	/*
	144	* Only unlink files that we created.
	145	*/
	146	f->unlink = 0;
25205e97	147	if (file_ok(td, f)) {
9b031dc8	148	f->unlink = td->unlink;
25205e97 JA	149	err = create_file(td, f);
	150	if (err)
	151	break;
	152	}
53cdc686 JA	153	}
	154
	155	temp_stall_ts = 0;
	156	return err;
	157	}
	158
	159	static int file_size(struct thread_data td, struct fio_file f)
	160	{
	161	struct stat st;
	162
f4ee22ca JA	163	/*
	164	* if we are not doing real io, just pretend the file is as large
	165	* as the size= given. this works fine with nrfiles > 1 as well,
	166	* we only really care about it being at least as big as size=
	167	*/
	168	if (td->io_ops->flags & FIO_NULLIO) {
	169	f->real_file_size = f->file_size = td->total_file_size;
	170	return 0;
	171	}
	172
53cdc686 JA	173	if (td->overwrite) {
53cdc686 JA	174	if (fstat(f->fd, &st) == -1) {
e1161c32	175	td_verror(td, errno, "fstat");
53cdc686 JA	176	return 1;
	177	}
	178
	179	f->real_file_size = st.st_size;
	180
	181	if (!f->file_size \|\| f->file_size > f->real_file_size)
	182	f->file_size = f->real_file_size;
745508dd JA	183	} else
745508dd JA	184	f->real_file_size = f->file_size;
53cdc686	185
53cdc686 JA	186	return 0;
	187	}
	188
	189	static int bdev_size(struct thread_data td, struct fio_file f)
	190	{
	191	unsigned long long bytes;
	192	int r;
	193
	194	r = blockdev_size(f->fd, &bytes);
	195	if (r) {
e1161c32	196	td_verror(td, r, "blockdev_size");
53cdc686 JA	197	return 1;
	198	}
	199
	200	f->real_file_size = bytes;
	201
	202	/*
	203	* no extend possibilities, so limit size to device size if too large
	204	*/
	205	if (!f->file_size \|\| f->file_size > f->real_file_size)
	206	f->file_size = f->real_file_size;
	207
	208	f->file_size -= f->file_offset;
	209	return 0;
	210	}
	211
	212	static int get_file_size(struct thread_data td, struct fio_file f)
	213	{
	214	int ret = 0;
	215
	216	if (td->filetype == FIO_TYPE_FILE)
	217	ret = file_size(td, f);
	218	else if (td->filetype == FIO_TYPE_BD)
	219	ret = bdev_size(td, f);
	220	else
	221	f->real_file_size = -1;
	222
	223	if (ret)
	224	return ret;
	225
	226	if (f->file_offset > f->real_file_size) {
	227	log_err("%s: offset extends end (%Lu > %Lu)\n", td->name, f->file_offset, f->real_file_size);
	228	return 1;
	229	}
	230
53cdc686 JA	231	return 0;
	232	}
	233
e5b401d4 JA	234	int file_invalidate_cache(struct thread_data td, struct fio_file f)
	235	{
	236	int ret = 0;
	237
	238	/*
	239	* FIXME: add blockdev flushing too
	240	*/
	241	if (td->io_ops->flags & FIO_MMAPIO)
	242	ret = madvise(f->mmap, f->file_size, MADV_DONTNEED);
	243	else if (td->filetype == FIO_TYPE_FILE)
	244	ret = fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_DONTNEED);
	245	else if (td->filetype == FIO_TYPE_BD)
	246	ret = blockdev_invalidate_cache(f->fd);
	247	else if (td->filetype == FIO_TYPE_CHAR)
	248	ret = 0;
	249
	250	if (ret < 0) {
e1161c32	251	td_verror(td, errno, "invalidate_cache");
e5b401d4 JA	252	return 1;
	253	}
	254
	255	return 0;
	256	}
	257
53cdc686 JA	258	static int __setup_file_mmap(struct thread_data td, struct fio_file f)
	259	{
	260	int flags;
	261
	262	if (td_rw(td))
	263	flags = PROT_READ \| PROT_WRITE;
	264	else if (td_write(td)) {
	265	flags = PROT_WRITE;
	266
	267	if (td->verify != VERIFY_NONE)
	268	flags \|= PROT_READ;
	269	} else
	270	flags = PROT_READ;
	271
	272	f->mmap = mmap(NULL, f->file_size, flags, MAP_SHARED, f->fd, f->file_offset);
	273	if (f->mmap == MAP_FAILED) {
	274	f->mmap = NULL;
e1161c32	275	td_verror(td, errno, "mmap");
53cdc686 JA	276	return 1;
	277	}
	278
e5b401d4 JA	279	if (td->invalidate_cache && file_invalidate_cache(td, f))
e5b401d4 JA	280	return 1;
53cdc686 JA	281
	282	if (td->sequential) {
	283	if (madvise(f->mmap, f->file_size, MADV_SEQUENTIAL) < 0) {
e1161c32	284	td_verror(td, errno, "madvise");
53cdc686 JA	285	return 1;
	286	}
	287	} else {
	288	if (madvise(f->mmap, f->file_size, MADV_RANDOM) < 0) {
e1161c32	289	td_verror(td, errno, "madvise");
53cdc686 JA	290	return 1;
	291	}
	292	}
	293
	294	return 0;
	295	}
	296
	297	static int setup_files_mmap(struct thread_data *td)
	298	{
	299	struct fio_file *f;
	300	int i, err = 0;
	301
	302	for_each_file(td, f, i) {
	303	err = __setup_file_mmap(td, f);
	304	if (err)
	305	break;
	306	}
	307
	308	return err;
	309	}
	310
	311	static int __setup_file_plain(struct thread_data td, struct fio_file f)
	312	{
e5b401d4 JA	313	if (td->invalidate_cache && file_invalidate_cache(td, f))
e5b401d4 JA	314	return 1;
53cdc686 JA	315
	316	if (td->sequential) {
	317	if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_SEQUENTIAL) < 0) {
e1161c32	318	td_verror(td, errno, "fadvise");
53cdc686 JA	319	return 1;
	320	}
	321	} else {
	322	if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_RANDOM) < 0) {
e1161c32	323	td_verror(td, errno, "fadvise");
53cdc686 JA	324	return 1;
	325	}
	326	}
	327
	328	return 0;
	329	}
	330
	331	static int setup_files_plain(struct thread_data *td)
	332	{
	333	struct fio_file *f;
	334	int i, err = 0;
	335
	336	for_each_file(td, f, i) {
	337	err = __setup_file_plain(td, f);
	338	if (err)
	339	break;
	340	}
	341
	342	return err;
	343	}
	344
	345	static int setup_file(struct thread_data td, struct fio_file f)
	346	{
53cdc686 JA	347	int flags = 0;
53cdc686 JA	348
ed92ac0c JA	349	if (td->io_ops->flags & FIO_NETIO)
ed92ac0c JA	350	return 0;
53cdc686	351
4d9345ae JA	352	/*
	353	* we need a valid file descriptor, but don't create a real file.
	354	* lets just dup stdout, seems like a sensible approach.
	355	*/
	356	if (td->io_ops->flags & FIO_NULLIO)
	357	f->fd = dup(STDOUT_FILENO);
	358	else {
	359	if (td->odirect)
	360	flags \|= OS_O_DIRECT;
	361	if (td->sync_io)
	362	flags \|= O_SYNC;
	363
	364	if (td_write(td) \|\| td_rw(td)) {
	365	flags \|= O_RDWR;
7abf833d	366
4d9345ae JA	367	if (td->filetype == FIO_TYPE_FILE) {
	368	if (!td->overwrite)
	369	flags \|= O_TRUNC;
53cdc686	370
4d9345ae JA	371	flags \|= O_CREAT;
4d9345ae JA	372	}
53cdc686	373
4d9345ae JA	374	f->fd = open(f->file_name, flags, 0600);
	375	} else {
	376	if (td->filetype == FIO_TYPE_CHAR)
	377	flags \|= O_RDWR;
	378	else
	379	flags \|= O_RDONLY;
53cdc686	380
4d9345ae JA	381	f->fd = open(f->file_name, flags);
4d9345ae JA	382	}
53cdc686 JA	383	}
	384
	385	if (f->fd == -1) {
e1161c32 JA	386	int __e = errno;
	387
	388	td_verror(td, __e, "open");
	389	if (__e == EINVAL && td->odirect)
9d80e114	390	log_err("fio: destination does not support O_DIRECT\n");
53cdc686 JA	391	return 1;
	392	}
	393
	394	if (get_file_size(td, f))
	395	return 1;
	396
	397	return 0;
	398	}
	399
21972cde JA	400	int open_files(struct thread_data *td)
	401	{
	402	struct fio_file *f;
	403	int i, err = 0;
	404
	405	for_each_file(td, f, i) {
	406	err = setup_file(td, f);
	407	if (err)
	408	break;
	409	}
	410
7abf833d JA	411	if (!err)
	412	return 0;
	413
	414	for_each_file(td, f, i) {
	415	if (f->fd != -1) {
	416	close(f->fd);
	417	f->fd = -1;
	418	}
	419	}
	420
21972cde JA	421	return err;
	422	}
	423
53cdc686 JA	424	int setup_files(struct thread_data *td)
	425	{
	426	struct fio_file *f;
21972cde	427	int err, i;
53cdc686 JA	428
	429	/*
	430	* if ioengine defines a setup() method, it's responsible for
	431	* setting up everything in the td->files[] area.
	432	*/
	433	if (td->io_ops->setup)
	434	return td->io_ops->setup(td);
	435
	436	if (create_files(td))
	437	return 1;
	438
21972cde	439	err = open_files(td);
f1027063 JA	440	if (err)
	441	return err;
	442
0a7eb121 JA	443	/*
	444	* Recalculate the total file size now that files are set up.
	445	*/
	446	td->total_file_size = 0;
	447	for_each_file(td, f, i)
	448	td->total_file_size += f->file_size;
	449
f1027063	450	td->io_size = td->total_file_size;
53cdc686 JA	451	if (td->io_size == 0) {
53cdc686 JA	452	log_err("%s: no io blocks\n", td->name);
e1161c32	453	td_verror(td, EINVAL, "total_file_size");
53cdc686 JA	454	return 1;
	455	}
	456
	457	if (!td->zone_size)
	458	td->zone_size = td->io_size;
	459
	460	td->total_io_size = td->io_size * td->loops;
	461
	462	if (td->io_ops->flags & FIO_MMAPIO)
21972cde	463	err = setup_files_mmap(td);
53cdc686	464	else
21972cde JA	465	err = setup_files_plain(td);
	466
	467	for_each_file(td, f, i) {
	468	if (f->fd != -1) {
	469	close(f->fd);
	470	f->fd = -1;
	471	}
	472	}
	473
	474	return err;
53cdc686 JA	475	}
	476
	477	void close_files(struct thread_data *td)
	478	{
0ab8db89	479	struct fio_file *f;
53cdc686 JA	480	int i;
53cdc686 JA	481
0ab8db89	482	for_each_file(td, f, i) {
9b031dc8	483	if (!td->filename && f->unlink &&
02bcaa8c	484	td->filetype == FIO_TYPE_FILE) {
132ad46d JA	485	unlink(f->file_name);
	486	free(f->file_name);
	487	f->file_name = NULL;
	488	}
21972cde JA	489	if (f->fd != -1) {
	490	close(f->fd);
	491	f->fd = -1;
	492	}
53cdc686 JA	493	if (f->mmap) {
	494	munmap(f->mmap, f->file_size);
	495	f->mmap = NULL;
	496	}
	497	}
b4a6a59a	498
132ad46d	499	td->filename = NULL;
b4a6a59a JA	500	free(td->files);
	501	td->files = NULL;
	502	td->nr_files = 0;
53cdc686	503	}