[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, new_files;

	new_files = 0;
	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;
		} else
			new_files++;
	}

	/*
	 * 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 / new_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, new_files,
				(total_file_size >> 20) / new_files,
				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;
	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;
e407bec2	105	unsigned int i, new_files;
53cdc686	106
e407bec2	107	new_files = 0;
96d32d51	108	total_file_size = td->total_file_size;
1549441c	109	for_each_file(td, f, i) {
96d32d51 JA	110	unsigned long long s;
	111
	112	f->file_offset = td->start_offset;
	113
1549441c JA	114	if (f->filetype != FIO_TYPE_FILE)
	115	continue;
	116
96d32d51 JA	117	if (f->flags & FIO_FILE_EXISTS) {
	118	s = f->file_size;
	119	if (s > total_file_size)
	120	s = total_file_size;
	121
	122	total_file_size -= s;
e407bec2 JA	123	} else
e407bec2 JA	124	new_files++;
1549441c	125	}
f697125a	126
53cdc686 JA	127	/*
	128	* unless specifically asked for overwrite, let normal io extend it
	129	*/
0263882a JA	130	can_extend = !td->overwrite && !(td->io_ops->flags & FIO_NOEXTEND);
0263882a JA	131	if (can_extend)
53cdc686	132	return 0;
53cdc686	133
25205e97	134	need_create = 0;
af52b345 JA	135	for_each_file(td, f, i) {
	136	int file_there;
	137
	138	if (f->filetype != FIO_TYPE_FILE)
	139	continue;
96d32d51 JA	140	if (f->flags & FIO_FILE_EXISTS)
	141	continue;
	142
e407bec2	143	f->file_size = total_file_size / new_files;
eff6861d	144
af52b345	145	file_there = !file_ok(td, f);
eff6861d	146
af52b345 JA	147	if (file_there && td_write(td) && !td->overwrite) {
	148	unlink(f->file_name);
	149	file_there = 0;
eff6861d	150	}
af52b345 JA	151
af52b345 JA	152	need_create += !file_there;
eff6861d	153	}
25205e97	154
25205e97 JA	155	if (!need_create)
	156	return 0;
	157
f1027063 JA	158	if (!td->total_file_size) {
f1027063 JA	159	log_err("Need size for create\n");
e1161c32	160	td_verror(td, EINVAL, "file_size");
f1027063 JA	161	return 1;
	162	}
	163
53cdc686	164	temp_stall_ts = 1;
1e97cce9	165	fprintf(f_out, "%s: Laying out IO file(s) (%u x %LuMiB == %LuMiB)\n",
e407bec2 JA	166	td->name, new_files,
	167	(total_file_size >> 20) / new_files,
	168	total_file_size >> 20);
53cdc686 JA	169
	170	err = 0;
	171	for_each_file(td, f, i) {
9b031dc8 JA	172	/*
	173	* Only unlink files that we created.
	174	*/
f11bd94d	175	f->flags &= ~FIO_FILE_UNLINK;
25205e97	176	if (file_ok(td, f)) {
f11bd94d JA	177	if (td->unlink)
	178	f->flags \|= FIO_FILE_UNLINK;
	179
25205e97 JA	180	err = create_file(td, f);
	181	if (err)
	182	break;
	183	}
53cdc686 JA	184	}
	185
	186	temp_stall_ts = 0;
	187	return err;
	188	}
	189
	190	static int file_size(struct thread_data td, struct fio_file f)
	191	{
	192	struct stat st;
	193
	194	if (td->overwrite) {
	195	if (fstat(f->fd, &st) == -1) {
e1161c32	196	td_verror(td, errno, "fstat");
53cdc686 JA	197	return 1;
	198	}
	199
	200	f->real_file_size = st.st_size;
	201
	202	if (!f->file_size \|\| f->file_size > f->real_file_size)
	203	f->file_size = f->real_file_size;
745508dd JA	204	} else
745508dd JA	205	f->real_file_size = f->file_size;
53cdc686	206
53cdc686 JA	207	return 0;
	208	}
	209
	210	static int bdev_size(struct thread_data td, struct fio_file f)
	211	{
	212	unsigned long long bytes;
	213	int r;
	214
	215	r = blockdev_size(f->fd, &bytes);
	216	if (r) {
e1161c32	217	td_verror(td, r, "blockdev_size");
53cdc686 JA	218	return 1;
	219	}
	220
	221	f->real_file_size = bytes;
	222
	223	/*
	224	* no extend possibilities, so limit size to device size if too large
	225	*/
	226	if (!f->file_size \|\| f->file_size > f->real_file_size)
	227	f->file_size = f->real_file_size;
	228
	229	f->file_size -= f->file_offset;
	230	return 0;
	231	}
	232
	233	static int get_file_size(struct thread_data td, struct fio_file f)
	234	{
	235	int ret = 0;
	236
96d32d51 JA	237	if (f->filetype == FIO_TYPE_FILE) {
	238	if (!(f->flags & FIO_FILE_EXISTS))
	239	ret = file_size(td, f);
	240	} else if (f->filetype == FIO_TYPE_BD)
53cdc686 JA	241	ret = bdev_size(td, f);
	242	else
	243	f->real_file_size = -1;
	244
	245	if (ret)
	246	return ret;
	247
	248	if (f->file_offset > f->real_file_size) {
	249	log_err("%s: offset extends end (%Lu > %Lu)\n", td->name, f->file_offset, f->real_file_size);
	250	return 1;
	251	}
	252
53cdc686 JA	253	return 0;
	254	}
	255
e5b401d4 JA	256	int file_invalidate_cache(struct thread_data td, struct fio_file f)
	257	{
	258	int ret = 0;
	259
da86ccb6	260	if (td->odirect)
b5af8293 JA	261	return 0;
b5af8293 JA	262
e5b401d4 JA	263	/*
	264	* FIXME: add blockdev flushing too
	265	*/
b5af8293	266	if (f->mmap)
e5b401d4	267	ret = madvise(f->mmap, f->file_size, MADV_DONTNEED);
af52b345	268	else if (f->filetype == FIO_TYPE_FILE) {
b5af8293	269	ret = fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_DONTNEED);
af52b345	270	} else if (f->filetype == FIO_TYPE_BD) {
b5af8293	271	ret = blockdev_invalidate_cache(f->fd);
af52b345	272	} else if (f->filetype == FIO_TYPE_CHAR)
e5b401d4 JA	273	ret = 0;
	274
	275	if (ret < 0) {
e1161c32	276	td_verror(td, errno, "invalidate_cache");
e5b401d4 JA	277	return 1;
	278	}
	279
ad2da605	280	return ret;
e5b401d4 JA	281	}
e5b401d4 JA	282
b5af8293	283	void generic_close_file(struct thread_data fio_unused td, struct fio_file f)
53cdc686	284	{
b5af8293 JA	285	close(f->fd);
b5af8293 JA	286	f->fd = -1;
53cdc686 JA	287	}
53cdc686 JA	288
b5af8293	289	int generic_open_file(struct thread_data td, struct fio_file f)
53cdc686	290	{
53cdc686 JA	291	int flags = 0;
53cdc686 JA	292
2fd233b7 JA	293	if (td->odirect)
	294	flags \|= OS_O_DIRECT;
	295	if (td->sync_io)
	296	flags \|= O_SYNC;
53cdc686	297
2fd233b7 JA	298	if (td_write(td) \|\| td_rw(td)) {
2fd233b7 JA	299	flags \|= O_RDWR;
53cdc686	300
af52b345	301	if (f->filetype == FIO_TYPE_FILE)
2fd233b7	302	flags \|= O_CREAT;
2fd233b7	303
b5af8293	304	f->fd = open(f->file_name, flags, 0600);
2fd233b7	305	} else {
af52b345	306	if (f->filetype == FIO_TYPE_CHAR)
2fd233b7 JA	307	flags \|= O_RDWR;
	308	else
	309	flags \|= O_RDONLY;
	310
b5af8293	311	f->fd = open(f->file_name, flags);
53cdc686 JA	312	}
	313
	314	if (f->fd == -1) {
e1161c32 JA	315	int __e = errno;
	316
	317	td_verror(td, __e, "open");
	318	if (__e == EINVAL && td->odirect)
9d80e114	319	log_err("fio: destination does not support O_DIRECT\n");
8ab53873 JA	320	if (__e == EMFILE)
8ab53873 JA	321	log_err("fio: try reducing/setting openfiles (failed at %u of %u)\n", td->nr_open_files, td->nr_files);
53cdc686 JA	322	return 1;
	323	}
	324
b5af8293 JA	325	if (get_file_size(td, f))
	326	goto err;
	327
0263882a	328	if (td->invalidate_cache && file_invalidate_cache(td, f))
b5af8293 JA	329	goto err;
	330
	331	if (!td_random(td)) {
	332	if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_SEQUENTIAL) < 0) {
	333	td_verror(td, errno, "fadvise");
	334	goto err;
	335	}
	336	} else {
	337	if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_RANDOM) < 0) {
	338	td_verror(td, errno, "fadvise");
	339	goto err;
	340	}
bdb4e2e9	341	}
53cdc686 JA	342
53cdc686 JA	343	return 0;
b5af8293 JA	344	err:
	345	close(f->fd);
	346	return 1;
	347	}
	348
21972cde JA	349	int open_files(struct thread_data *td)
	350	{
	351	struct fio_file *f;
af52b345 JA	352	unsigned int i;
af52b345 JA	353	int err = 0;
21972cde JA	354
21972cde JA	355	for_each_file(td, f, i) {
b5af8293	356	err = td_io_open_file(td, f);
21972cde JA	357	if (err)
21972cde JA	358	break;
b5af8293 JA	359
	360	if (td->open_files == td->nr_open_files)
	361	break;
21972cde JA	362	}
21972cde JA	363
7abf833d JA	364	if (!err)
	365	return 0;
	366
bdb4e2e9	367	for_each_file(td, f, i)
b5af8293	368	td_io_close_file(td, f);
7abf833d	369
21972cde JA	370	return err;
	371	}
	372
53cdc686 JA	373	int setup_files(struct thread_data *td)
	374	{
	375	struct fio_file *f;
af52b345 JA	376	unsigned int i;
af52b345 JA	377	int err;
53cdc686 JA	378
	379	/*
	380	* if ioengine defines a setup() method, it's responsible for
	381	* setting up everything in the td->files[] area.
	382	*/
	383	if (td->io_ops->setup)
	384	return td->io_ops->setup(td);
	385
	386	if (create_files(td))
	387	return 1;
	388
21972cde	389	err = open_files(td);
f1027063 JA	390	if (err)
	391	return err;
	392
0a7eb121 JA	393	/*
	394	* Recalculate the total file size now that files are set up.
	395	*/
	396	td->total_file_size = 0;
	397	for_each_file(td, f, i)
	398	td->total_file_size += f->file_size;
	399
f1027063	400	td->io_size = td->total_file_size;
53cdc686 JA	401	if (td->io_size == 0) {
53cdc686 JA	402	log_err("%s: no io blocks\n", td->name);
e1161c32	403	td_verror(td, EINVAL, "total_file_size");
53cdc686 JA	404	return 1;
	405	}
	406
	407	if (!td->zone_size)
	408	td->zone_size = td->io_size;
	409
	410	td->total_io_size = td->io_size * td->loops;
	411
bdb4e2e9	412	for_each_file(td, f, i)
b5af8293	413	td_io_close_file(td, f);
21972cde JA	414
21972cde JA	415	return err;
53cdc686 JA	416	}
	417
	418	void close_files(struct thread_data *td)
	419	{
0ab8db89	420	struct fio_file *f;
af52b345	421	unsigned int i;
53cdc686	422
0ab8db89	423	for_each_file(td, f, i) {
1315a68a	424	if (!f->file_name && (f->flags & FIO_FILE_UNLINK) &&
af52b345	425	f->filetype == FIO_TYPE_FILE) {
132ad46d	426	unlink(f->file_name);
1315a68a	427	free(f->file_name);
132ad46d JA	428	f->file_name = NULL;
132ad46d JA	429	}
bdb4e2e9	430
b5af8293	431	td_io_close_file(td, f);
b3dc7f07 JA	432
	433	if (f->file_map)
	434	free(f->file_map);
53cdc686	435	}
b4a6a59a	436
132ad46d	437	td->filename = NULL;
b4a6a59a JA	438	td->files = NULL;
b4a6a59a JA	439	td->nr_files = 0;
53cdc686	440	}
af52b345	441
e3bab463	442	static void get_file_type(struct fio_file *f)
af52b345 JA	443	{
	444	struct stat sb;
	445
	446	f->filetype = FIO_TYPE_FILE;
	447
e3bab463	448	if (!lstat(f->file_name, &sb)) {
96d32d51 JA	449	f->flags \|= FIO_FILE_EXISTS;
96d32d51 JA	450
af52b345 JA	451	if (S_ISBLK(sb.st_mode))
	452	f->filetype = FIO_TYPE_BD;
	453	else if (S_ISCHR(sb.st_mode))
	454	f->filetype = FIO_TYPE_CHAR;
96d32d51 JA	455	else {
	456	/*
	457	* might as well do this here, and save a stat later on
	458	*/
	459	f->real_file_size = sb.st_size;
	460	f->file_size = f->real_file_size;
	461	}
af52b345 JA	462	}
	463	}
	464
	465	void add_file(struct thread_data td, const char fname)
	466	{
7b4e4fe5	467	int cur_files = td->files_index;
af52b345 JA	468	struct fio_file *f;
	469
	470	td->files = realloc(td->files, (cur_files + 1) * sizeof(*f));
	471
	472	f = &td->files[cur_files];
	473	memset(f, 0, sizeof(*f));
	474	f->fd = -1;
cae61953	475	f->file_name = strdup(fname);
af52b345	476
e3bab463	477	get_file_type(f);
af52b345	478
7b4e4fe5	479	td->files_index++;
1549441c JA	480	if (f->filetype == FIO_TYPE_FILE)
1549441c JA	481	td->nr_normal_files++;
af52b345	482	}
0ad920e7 JA	483
	484	void get_file(struct fio_file *f)
	485	{
	486	f->references++;
	487	}
	488
	489	void put_file(struct thread_data td, struct fio_file f)
	490	{
	491	if (!(f->flags & FIO_FILE_OPEN))
	492	return;
	493
	494	assert(f->references);
	495	if (--f->references)
	496	return;
	497
ebb1415f JA	498	if (should_fsync(td) && td->fsync_on_close)
	499	fsync(f->fd);
	500
0ad920e7 JA	501	if (td->io_ops->close_file)
	502	td->io_ops->close_file(td, f);
	503	td->nr_open_files--;
	504	f->flags &= ~FIO_FILE_OPEN;
	505	}
bbf6b540 JA	506
	507	static int recurse_dir(struct thread_data td, const char dirname)
	508	{
	509	struct dirent *dir;
	510	int ret = 0;
	511	DIR *D;
	512
	513	D = opendir(dirname);
	514	if (!D) {
	515	td_verror(td, errno, "opendir");
	516	return 1;
	517	}
	518
	519	while ((dir = readdir(D)) != NULL) {
	520	char full_path[PATH_MAX];
	521	struct stat sb;
	522
e85b2b83 JA	523	if (!strcmp(dir->d_name, ".") \|\| !strcmp(dir->d_name, ".."))
e85b2b83 JA	524	continue;
96d32d51	525
bbf6b540 JA	526	sprintf(full_path, "%s/%s", dirname, dir->d_name);
	527
	528	if (lstat(full_path, &sb) == -1) {
	529	if (errno != ENOENT) {
	530	td_verror(td, errno, "stat");
	531	return 1;
	532	}
	533	}
	534
	535	if (S_ISREG(sb.st_mode)) {
	536	add_file(td, full_path);
	537	td->nr_files++;
	538	continue;
	539	}
	540
bbf6b540 JA	541	if ((ret = recurse_dir(td, full_path)) != 0)
	542	break;
	543	}
	544
	545	closedir(D);
	546	return ret;
	547	}
	548
	549	int add_dir_files(struct thread_data td, const char path)
	550	{
	551	return recurse_dir(td, path);
	552	}