[fio.git] / filesetup.c

#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <assert.h>
#include <dirent.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/types.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 (f->filetype != FIO_TYPE_FILE ||
	    (td->io_ops->flags & FIO_DISKLESSIO))
		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 err, need_create, can_extend;
	unsigned long long total_file_size;
	unsigned int i;

	total_file_size = td->total_file_size;
	for_each_file(td, f, i) {
		unsigned long long s;

		f->file_offset = td->start_offset;

		if (f->filetype != FIO_TYPE_FILE)
			continue;

		if (f->flags & FIO_FILE_EXISTS) {
			s = f->file_size;
			if (s > total_file_size)
				s = total_file_size;

			total_file_size -= s;
		}
	}

	/*
	 * unless specifically asked for overwrite, let normal io extend it
	 */
	can_extend = !td->overwrite && !(td->io_ops->flags & FIO_NOEXTEND);
	if (can_extend)
		return 0;

	need_create = 0;
	for_each_file(td, f, i) {
		int file_there;

		if (f->filetype != FIO_TYPE_FILE)
			continue;
		if (f->flags & FIO_FILE_EXISTS)
			continue;

		f->file_size = total_file_size / td->nr_normal_files;

		file_there = !file_ok(td, f);

		if (file_there && td_write(td) && !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_normal_files,
				(td->total_file_size >> 20) / td->nr_normal_files,
				td->total_file_size >> 20);

	err = 0;
	for_each_file(td, f, i) {
		/*
		 * Only unlink files that we created.
		 */
		f->flags &= ~FIO_FILE_UNLINK;
		if (file_ok(td, f)) {
			if (td->unlink)
				f->flags |= FIO_FILE_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 (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 (f->filetype == FIO_TYPE_FILE) {
		if (!(f->flags & FIO_FILE_EXISTS))
			ret = file_size(td, f);
	} else if (f->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;

	if (td->odirect)
		return 0;

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

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

	return ret;
}

void generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
{
	close(f->fd);
	f->fd = -1;
}

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

	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 (f->filetype == FIO_TYPE_FILE)
			flags |= O_CREAT;

		f->fd = open(f->file_name, flags, 0600);
	} else {
		if (f->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");
		if (__e == EMFILE)
			log_err("fio: try reducing/setting openfiles (failed at %u of %u)\n", td->nr_open_files, td->nr_files);
		return 1;
	}

	if (get_file_size(td, f))
		goto err;

	if (td->invalidate_cache && file_invalidate_cache(td, f))
		goto err;

	if (!td_random(td)) {
		if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_SEQUENTIAL) < 0) {
			td_verror(td, errno, "fadvise");
			goto err;
		}
	} else {
		if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_RANDOM) < 0) {
			td_verror(td, errno, "fadvise");
			goto err;
		}
	}

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

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

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

		if (td->open_files == td->nr_open_files)
			break;
	}

	if (!err)
		return 0;

	for_each_file(td, f, i)
		td_io_close_file(td, f);

	return err;
}

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

	/*
	 * 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;

	for_each_file(td, f, i)
		td_io_close_file(td, f);

	return err;
}

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

	for_each_file(td, f, i) {
		if (!f->file_name && (f->flags & FIO_FILE_UNLINK) &&
		    f->filetype == FIO_TYPE_FILE) {
			unlink(f->file_name);
			free(f->file_name);
			f->file_name = NULL;
		}

		td_io_close_file(td, f);

		if (f->file_map)
			free(f->file_map);
	}

	td->filename = NULL;
	free(td->files);
	td->files = NULL;
	td->nr_files = 0;
}

static void get_file_type(struct fio_file *f)
{
	struct stat sb;

	f->filetype = FIO_TYPE_FILE;

	if (!lstat(f->file_name, &sb)) {
		f->flags |= FIO_FILE_EXISTS;

		if (S_ISBLK(sb.st_mode))
			f->filetype = FIO_TYPE_BD;
		else if (S_ISCHR(sb.st_mode))
			f->filetype = FIO_TYPE_CHAR;
		else {
			/*
			 * might as well do this here, and save a stat later on
			 */
			f->real_file_size = sb.st_size;
			f->file_size = f->real_file_size;
		}
	}
}

void add_file(struct thread_data *td, const char *fname)
{
	int cur_files = td->files_index;
	struct fio_file *f;

	td->files = realloc(td->files, (cur_files + 1) * sizeof(*f));

	f = &td->files[cur_files];
	memset(f, 0, sizeof(*f));
	f->fd = -1;
	f->file_name = strdup(fname);

	get_file_type(f);

	td->files_index++;
	if (f->filetype == FIO_TYPE_FILE)
		td->nr_normal_files++;
}

void get_file(struct fio_file *f)
{
	f->references++;
}

void put_file(struct thread_data *td, struct fio_file *f)
{
	if (!(f->flags & FIO_FILE_OPEN))
		return;

	assert(f->references);
	if (--f->references)
		return;

	if (should_fsync(td) && td->fsync_on_close)
		fsync(f->fd);

	if (td->io_ops->close_file)
		td->io_ops->close_file(td, f);
	td->nr_open_files--;
	f->flags &= ~FIO_FILE_OPEN;
}

static int recurse_dir(struct thread_data *td, const char *dirname)
{
	struct dirent *dir;
	int ret = 0;
	DIR *D;

	D = opendir(dirname);
	if (!D) {
		td_verror(td, errno, "opendir");
		return 1;
	}

	while ((dir = readdir(D)) != NULL) {
		char full_path[PATH_MAX];
		struct stat sb;

		if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
			continue;

		sprintf(full_path, "%s/%s", dirname, dir->d_name);

		if (lstat(full_path, &sb) == -1) {
			if (errno != ENOENT) {
				td_verror(td, errno, "stat");
				return 1;
			}
		}

		if (S_ISREG(sb.st_mode)) {
			add_file(td, full_path);
			td->nr_files++;
			continue;
		}

		if ((ret = recurse_dir(td, full_path)) != 0)
			break;
	}

	closedir(D);
	return ret;
}

int add_dir_files(struct thread_data *td, const char *path)
{
	return recurse_dir(td, path);
}
Commit	Line	Data
53cdc686 JA	1	#include <unistd.h>
	2	#include <fcntl.h>
	3	#include <string.h>
	4	#include <assert.h>
bbf6b540	5	#include <dirent.h>
53cdc686 JA	6	#include <sys/stat.h>
53cdc686 JA	7	#include <sys/mman.h>
bbf6b540	8	#include <sys/types.h>
53cdc686 JA	9
	10	#include "fio.h"
	11	#include "os.h"
	12
25205e97 JA	13	/*
	14	* Check if the file exists and it's large enough.
	15	*/
	16	static int file_ok(struct thread_data td, struct fio_file f)
53cdc686	17	{
b2a15192	18	struct stat st;
53cdc686	19
af52b345	20	if (f->filetype != FIO_TYPE_FILE \|\|
b5af8293	21	(td->io_ops->flags & FIO_DISKLESSIO))
b2a15192 JA	22	return 0;
b2a15192 JA	23
fa01d139	24	if (lstat(f->file_name, &st) == -1)
25205e97	25	return 1;
fa01d139 JA	26
	27	/*
	28	* if it's a special file, size is always ok for now
	29	*/
	30	if (S_ISCHR(st.st_mode) \|\| S_ISBLK(st.st_mode))
	31	return 0;
	32	if (st.st_size < (off_t) f->file_size)
25205e97 JA	33	return 1;
	34
	35	return 0;
	36	}
	37
	38	static int create_file(struct thread_data td, struct fio_file f)
	39	{
	40	unsigned long long left;
	41	unsigned int bs;
	42	char *b;
	43	int r;
b2a15192	44
53cdc686 JA	45	f->fd = open(f->file_name, O_WRONLY \| O_CREAT \| O_TRUNC, 0644);
53cdc686 JA	46	if (f->fd < 0) {
e1161c32	47	td_verror(td, errno, "open");
53cdc686 JA	48	return 1;
	49	}
	50
	51	if (ftruncate(f->fd, f->file_size) == -1) {
e1161c32	52	td_verror(td, errno, "ftruncate");
53cdc686 JA	53	goto err;
	54	}
	55
40f8298c	56	if (posix_fallocate(f->fd, 0, f->file_size) < 0) {
e1161c32	57	td_verror(td, errno, "posix_fallocate");
40f8298c JA	58	goto err;
	59	}
	60
a00735e6 JA	61	b = malloc(td->max_bs[DDIR_WRITE]);
a00735e6 JA	62	memset(b, 0, td->max_bs[DDIR_WRITE]);
53cdc686 JA	63
	64	left = f->file_size;
	65	while (left && !td->terminate) {
a00735e6	66	bs = td->max_bs[DDIR_WRITE];
53cdc686 JA	67	if (bs > left)
	68	bs = left;
	69
	70	r = write(f->fd, b, bs);
	71
	72	if (r == (int) bs) {
	73	left -= bs;
	74	continue;
	75	} else {
	76	if (r < 0)
e1161c32	77	td_verror(td, errno, "write");
53cdc686	78	else
e1161c32	79	td_verror(td, EIO, "write");
53cdc686 JA	80
	81	break;
	82	}
	83	}
	84
	85	if (td->terminate)
	86	unlink(f->file_name);
	87	else if (td->create_fsync)
	88	fsync(f->fd);
	89
	90	free(b);
	91	close(f->fd);
	92	f->fd = -1;
	93	return 0;
	94	err:
	95	close(f->fd);
	96	f->fd = -1;
	97	return 1;
	98	}
	99
	100	static int create_files(struct thread_data *td)
	101	{
	102	struct fio_file *f;
af52b345	103	int err, need_create, can_extend;
96d32d51	104	unsigned long long total_file_size;
af52b345	105	unsigned int i;
53cdc686	106
96d32d51	107	total_file_size = td->total_file_size;
1549441c	108	for_each_file(td, f, i) {
96d32d51 JA	109	unsigned long long s;
	110
	111	f->file_offset = td->start_offset;
	112
1549441c JA	113	if (f->filetype != FIO_TYPE_FILE)
	114	continue;
	115
96d32d51 JA	116	if (f->flags & FIO_FILE_EXISTS) {
	117	s = f->file_size;
	118	if (s > total_file_size)
	119	s = total_file_size;
	120
	121	total_file_size -= s;
	122	}
1549441c	123	}
f697125a	124
53cdc686 JA	125	/*
	126	* unless specifically asked for overwrite, let normal io extend it
	127	*/
0263882a JA	128	can_extend = !td->overwrite && !(td->io_ops->flags & FIO_NOEXTEND);
0263882a JA	129	if (can_extend)
53cdc686	130	return 0;
53cdc686	131
25205e97	132	need_create = 0;
af52b345 JA	133	for_each_file(td, f, i) {
	134	int file_there;
	135
	136	if (f->filetype != FIO_TYPE_FILE)
	137	continue;
96d32d51 JA	138	if (f->flags & FIO_FILE_EXISTS)
	139	continue;
	140
	141	f->file_size = total_file_size / td->nr_normal_files;
eff6861d	142
af52b345	143	file_there = !file_ok(td, f);
eff6861d	144
af52b345 JA	145	if (file_there && td_write(td) && !td->overwrite) {
	146	unlink(f->file_name);
	147	file_there = 0;
eff6861d	148	}
af52b345 JA	149
af52b345 JA	150	need_create += !file_there;
eff6861d	151	}
25205e97	152
25205e97 JA	153	if (!need_create)
	154	return 0;
	155
f1027063 JA	156	if (!td->total_file_size) {
f1027063 JA	157	log_err("Need size for create\n");
e1161c32	158	td_verror(td, EINVAL, "file_size");
f1027063 JA	159	return 1;
	160	}
	161
53cdc686	162	temp_stall_ts = 1;
1e97cce9	163	fprintf(f_out, "%s: Laying out IO file(s) (%u x %LuMiB == %LuMiB)\n",
1549441c JA	164	td->name, td->nr_normal_files,
1549441c JA	165	(td->total_file_size >> 20) / td->nr_normal_files,
25205e97	166	td->total_file_size >> 20);
53cdc686 JA	167
	168	err = 0;
	169	for_each_file(td, f, i) {
9b031dc8 JA	170	/*
	171	* Only unlink files that we created.
	172	*/
f11bd94d	173	f->flags &= ~FIO_FILE_UNLINK;
25205e97	174	if (file_ok(td, f)) {
f11bd94d JA	175	if (td->unlink)
	176	f->flags \|= FIO_FILE_UNLINK;
	177
25205e97 JA	178	err = create_file(td, f);
	179	if (err)
	180	break;
	181	}
53cdc686 JA	182	}
	183
	184	temp_stall_ts = 0;
	185	return err;
	186	}
	187
	188	static int file_size(struct thread_data td, struct fio_file f)
	189	{
	190	struct stat st;
	191
	192	if (td->overwrite) {
	193	if (fstat(f->fd, &st) == -1) {
e1161c32	194	td_verror(td, errno, "fstat");
53cdc686 JA	195	return 1;
	196	}
	197
	198	f->real_file_size = st.st_size;
	199
	200	if (!f->file_size \|\| f->file_size > f->real_file_size)
	201	f->file_size = f->real_file_size;
745508dd JA	202	} else
745508dd JA	203	f->real_file_size = f->file_size;
53cdc686	204
53cdc686 JA	205	return 0;
	206	}
	207
	208	static int bdev_size(struct thread_data td, struct fio_file f)
	209	{
	210	unsigned long long bytes;
	211	int r;
	212
	213	r = blockdev_size(f->fd, &bytes);
	214	if (r) {
e1161c32	215	td_verror(td, r, "blockdev_size");
53cdc686 JA	216	return 1;
	217	}
	218
	219	f->real_file_size = bytes;
	220
	221	/*
	222	* no extend possibilities, so limit size to device size if too large
	223	*/
	224	if (!f->file_size \|\| f->file_size > f->real_file_size)
	225	f->file_size = f->real_file_size;
	226
	227	f->file_size -= f->file_offset;
	228	return 0;
	229	}
	230
	231	static int get_file_size(struct thread_data td, struct fio_file f)
	232	{
	233	int ret = 0;
	234
96d32d51 JA	235	if (f->filetype == FIO_TYPE_FILE) {
	236	if (!(f->flags & FIO_FILE_EXISTS))
	237	ret = file_size(td, f);
	238	} else if (f->filetype == FIO_TYPE_BD)
53cdc686 JA	239	ret = bdev_size(td, f);
	240	else
	241	f->real_file_size = -1;
	242
	243	if (ret)
	244	return ret;
	245
	246	if (f->file_offset > f->real_file_size) {
	247	log_err("%s: offset extends end (%Lu > %Lu)\n", td->name, f->file_offset, f->real_file_size);
	248	return 1;
	249	}
	250
53cdc686 JA	251	return 0;
	252	}
	253
e5b401d4 JA	254	int file_invalidate_cache(struct thread_data td, struct fio_file f)
	255	{
	256	int ret = 0;
	257
da86ccb6	258	if (td->odirect)
b5af8293 JA	259	return 0;
b5af8293 JA	260
e5b401d4 JA	261	/*
	262	* FIXME: add blockdev flushing too
	263	*/
b5af8293	264	if (f->mmap)
e5b401d4	265	ret = madvise(f->mmap, f->file_size, MADV_DONTNEED);
af52b345	266	else if (f->filetype == FIO_TYPE_FILE) {
b5af8293	267	ret = fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_DONTNEED);
af52b345	268	} else if (f->filetype == FIO_TYPE_BD) {
b5af8293	269	ret = blockdev_invalidate_cache(f->fd);
af52b345	270	} else if (f->filetype == FIO_TYPE_CHAR)
e5b401d4 JA	271	ret = 0;
	272
	273	if (ret < 0) {
e1161c32	274	td_verror(td, errno, "invalidate_cache");
e5b401d4 JA	275	return 1;
	276	}
	277
ad2da605	278	return ret;
e5b401d4 JA	279	}
e5b401d4 JA	280
b5af8293	281	void generic_close_file(struct thread_data fio_unused td, struct fio_file f)
53cdc686	282	{
b5af8293 JA	283	close(f->fd);
b5af8293 JA	284	f->fd = -1;
53cdc686 JA	285	}
53cdc686 JA	286
b5af8293	287	int generic_open_file(struct thread_data td, struct fio_file f)
53cdc686	288	{
53cdc686 JA	289	int flags = 0;
53cdc686 JA	290
2fd233b7 JA	291	if (td->odirect)
	292	flags \|= OS_O_DIRECT;
	293	if (td->sync_io)
	294	flags \|= O_SYNC;
53cdc686	295
2fd233b7 JA	296	if (td_write(td) \|\| td_rw(td)) {
2fd233b7 JA	297	flags \|= O_RDWR;
53cdc686	298
af52b345	299	if (f->filetype == FIO_TYPE_FILE)
2fd233b7	300	flags \|= O_CREAT;
2fd233b7	301
b5af8293	302	f->fd = open(f->file_name, flags, 0600);
2fd233b7	303	} else {
af52b345	304	if (f->filetype == FIO_TYPE_CHAR)
2fd233b7 JA	305	flags \|= O_RDWR;
	306	else
	307	flags \|= O_RDONLY;
	308
b5af8293	309	f->fd = open(f->file_name, flags);
53cdc686 JA	310	}
	311
	312	if (f->fd == -1) {
e1161c32 JA	313	int __e = errno;
	314
	315	td_verror(td, __e, "open");
	316	if (__e == EINVAL && td->odirect)
9d80e114	317	log_err("fio: destination does not support O_DIRECT\n");
8ab53873 JA	318	if (__e == EMFILE)
8ab53873 JA	319	log_err("fio: try reducing/setting openfiles (failed at %u of %u)\n", td->nr_open_files, td->nr_files);
53cdc686 JA	320	return 1;
	321	}
	322
b5af8293 JA	323	if (get_file_size(td, f))
	324	goto err;
	325
0263882a	326	if (td->invalidate_cache && file_invalidate_cache(td, f))
b5af8293 JA	327	goto err;
	328
	329	if (!td_random(td)) {
	330	if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_SEQUENTIAL) < 0) {
	331	td_verror(td, errno, "fadvise");
	332	goto err;
	333	}
	334	} else {
	335	if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_RANDOM) < 0) {
	336	td_verror(td, errno, "fadvise");
	337	goto err;
	338	}
bdb4e2e9	339	}
53cdc686 JA	340
53cdc686 JA	341	return 0;
b5af8293 JA	342	err:
	343	close(f->fd);
	344	return 1;
	345	}
	346
21972cde JA	347	int open_files(struct thread_data *td)
	348	{
	349	struct fio_file *f;
af52b345 JA	350	unsigned int i;
af52b345 JA	351	int err = 0;
21972cde JA	352
21972cde JA	353	for_each_file(td, f, i) {
b5af8293	354	err = td_io_open_file(td, f);
21972cde JA	355	if (err)
21972cde JA	356	break;
b5af8293 JA	357
	358	if (td->open_files == td->nr_open_files)
	359	break;
21972cde JA	360	}
21972cde JA	361
7abf833d JA	362	if (!err)
	363	return 0;
	364
bdb4e2e9	365	for_each_file(td, f, i)
b5af8293	366	td_io_close_file(td, f);
7abf833d	367
21972cde JA	368	return err;
	369	}
	370
53cdc686 JA	371	int setup_files(struct thread_data *td)
	372	{
	373	struct fio_file *f;
af52b345 JA	374	unsigned int i;
af52b345 JA	375	int err;
53cdc686 JA	376
	377	/*
	378	* if ioengine defines a setup() method, it's responsible for
	379	* setting up everything in the td->files[] area.
	380	*/
	381	if (td->io_ops->setup)
	382	return td->io_ops->setup(td);
	383
	384	if (create_files(td))
	385	return 1;
	386
21972cde	387	err = open_files(td);
f1027063 JA	388	if (err)
	389	return err;
	390
0a7eb121 JA	391	/*
	392	* Recalculate the total file size now that files are set up.
	393	*/
	394	td->total_file_size = 0;
	395	for_each_file(td, f, i)
	396	td->total_file_size += f->file_size;
	397
f1027063	398	td->io_size = td->total_file_size;
53cdc686 JA	399	if (td->io_size == 0) {
53cdc686 JA	400	log_err("%s: no io blocks\n", td->name);
e1161c32	401	td_verror(td, EINVAL, "total_file_size");
53cdc686 JA	402	return 1;
	403	}
	404
	405	if (!td->zone_size)
	406	td->zone_size = td->io_size;
	407
	408	td->total_io_size = td->io_size * td->loops;
	409
bdb4e2e9	410	for_each_file(td, f, i)
b5af8293	411	td_io_close_file(td, f);
21972cde JA	412
21972cde JA	413	return err;
53cdc686 JA	414	}
	415
	416	void close_files(struct thread_data *td)
	417	{
0ab8db89	418	struct fio_file *f;
af52b345	419	unsigned int i;
53cdc686	420
0ab8db89	421	for_each_file(td, f, i) {
1315a68a	422	if (!f->file_name && (f->flags & FIO_FILE_UNLINK) &&
af52b345	423	f->filetype == FIO_TYPE_FILE) {
132ad46d	424	unlink(f->file_name);
1315a68a	425	free(f->file_name);
132ad46d JA	426	f->file_name = NULL;
132ad46d JA	427	}
bdb4e2e9	428
b5af8293	429	td_io_close_file(td, f);
b3dc7f07 JA	430
	431	if (f->file_map)
	432	free(f->file_map);
53cdc686	433	}
b4a6a59a	434
132ad46d	435	td->filename = NULL;
b4a6a59a JA	436	free(td->files);
	437	td->files = NULL;
	438	td->nr_files = 0;
53cdc686	439	}
af52b345	440
e3bab463	441	static void get_file_type(struct fio_file *f)
af52b345 JA	442	{
	443	struct stat sb;
	444
	445	f->filetype = FIO_TYPE_FILE;
	446
e3bab463	447	if (!lstat(f->file_name, &sb)) {
96d32d51 JA	448	f->flags \|= FIO_FILE_EXISTS;
96d32d51 JA	449
af52b345 JA	450	if (S_ISBLK(sb.st_mode))
	451	f->filetype = FIO_TYPE_BD;
	452	else if (S_ISCHR(sb.st_mode))
	453	f->filetype = FIO_TYPE_CHAR;
96d32d51 JA	454	else {
	455	/*
	456	* might as well do this here, and save a stat later on
	457	*/
	458	f->real_file_size = sb.st_size;
	459	f->file_size = f->real_file_size;
	460	}
af52b345 JA	461	}
	462	}
	463
	464	void add_file(struct thread_data td, const char fname)
	465	{
7b4e4fe5	466	int cur_files = td->files_index;
af52b345 JA	467	struct fio_file *f;
	468
	469	td->files = realloc(td->files, (cur_files + 1) * sizeof(*f));
	470
	471	f = &td->files[cur_files];
	472	memset(f, 0, sizeof(*f));
	473	f->fd = -1;
cae61953	474	f->file_name = strdup(fname);
af52b345	475
e3bab463	476	get_file_type(f);
af52b345	477
7b4e4fe5	478	td->files_index++;
1549441c JA	479	if (f->filetype == FIO_TYPE_FILE)
1549441c JA	480	td->nr_normal_files++;
af52b345	481	}
0ad920e7 JA	482
	483	void get_file(struct fio_file *f)
	484	{
	485	f->references++;
	486	}
	487
	488	void put_file(struct thread_data td, struct fio_file f)
	489	{
	490	if (!(f->flags & FIO_FILE_OPEN))
	491	return;
	492
	493	assert(f->references);
	494	if (--f->references)
	495	return;
	496
ebb1415f JA	497	if (should_fsync(td) && td->fsync_on_close)
	498	fsync(f->fd);
	499
0ad920e7 JA	500	if (td->io_ops->close_file)
	501	td->io_ops->close_file(td, f);
	502	td->nr_open_files--;
	503	f->flags &= ~FIO_FILE_OPEN;
	504	}
bbf6b540 JA	505
	506	static int recurse_dir(struct thread_data td, const char dirname)
	507	{
	508	struct dirent *dir;
	509	int ret = 0;
	510	DIR *D;
	511
	512	D = opendir(dirname);
	513	if (!D) {
	514	td_verror(td, errno, "opendir");
	515	return 1;
	516	}
	517
	518	while ((dir = readdir(D)) != NULL) {
	519	char full_path[PATH_MAX];
	520	struct stat sb;
	521
e85b2b83 JA	522	if (!strcmp(dir->d_name, ".") \|\| !strcmp(dir->d_name, ".."))
e85b2b83 JA	523	continue;
96d32d51	524
bbf6b540 JA	525	sprintf(full_path, "%s/%s", dirname, dir->d_name);
	526
	527	if (lstat(full_path, &sb) == -1) {
	528	if (errno != ENOENT) {
	529	td_verror(td, errno, "stat");
	530	return 1;
	531	}
	532	}
	533
	534	if (S_ISREG(sb.st_mode)) {
	535	add_file(td, full_path);
	536	td->nr_files++;
	537	continue;
	538	}
	539
bbf6b540 JA	540	if ((ret = recurse_dir(td, full_path)) != 0)
	541	break;
	542	}
	543
	544	closedir(D);
	545	return ret;
	546	}
	547
	548	int add_dir_files(struct thread_data td, const char path)
	549	{
	550	return recurse_dir(td, path);
	551	}