#include "fio.h"
#include "os.h"
-int open_file(struct thread_data *td, struct fio_file *f, int flags, int perm)
-{
- if (flags & O_CREAT)
- f->fd = open(f->file_name, flags, perm);
- else
- f->fd = open(f->file_name, flags);
-
- if (f->fd != -1) {
- td->nr_open_files++;
- return 0;
- }
-
- return 1;
-}
-
-void close_file(struct thread_data *td, struct fio_file *f)
-{
- if (f->fd != -1) {
- close(f->fd);
- f->fd = -1;
- td->nr_open_files--;
- }
-}
-
/*
* Check if the file exists and it's large enough.
*/
{
struct stat st;
- if (td->filetype != FIO_TYPE_FILE)
+ if (f->filetype != FIO_TYPE_FILE ||
+ (td->io_ops->flags & FIO_DISKLESSIO))
return 0;
if (lstat(f->file_name, &st) == -1)
static int create_files(struct thread_data *td)
{
struct fio_file *f;
- int i, err, need_create;
+ int err, need_create, can_extend;
+ unsigned int i;
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)
+ can_extend = !td->overwrite && !(td->io_ops->flags & FIO_NOEXTEND);
+ if (can_extend)
return 0;
need_create = 0;
- if (td->filetype == FIO_TYPE_FILE) {
- for_each_file(td, f, i) {
- int file_there = !file_ok(td, f);
+ for_each_file(td, f, i) {
+ int file_there;
+
+ if (f->filetype != FIO_TYPE_FILE)
+ continue;
- if (file_there && td_write(td) && !td->overwrite) {
- unlink(f->file_name);
- file_there = 0;
- }
+ file_there = !file_ok(td, f);
- need_create += !file_there;
+ if (file_there && td_write(td) && !td->overwrite) {
+ unlink(f->file_name);
+ file_there = 0;
}
+
+ need_create += !file_there;
}
if (!need_create)
/*
* Only unlink files that we created.
*/
- f->unlink = 0;
+ f->flags &= ~FIO_FILE_UNLINK;
if (file_ok(td, f)) {
- f->unlink = td->unlink;
+ if (td->unlink)
+ f->flags |= FIO_FILE_UNLINK;
+
err = create_file(td, f);
if (err)
break;
{
int ret = 0;
- if (td->filetype == FIO_TYPE_FILE)
+ if (f->filetype == FIO_TYPE_FILE)
ret = file_size(td, f);
- else if (td->filetype == FIO_TYPE_BD)
+ else if (f->filetype == FIO_TYPE_BD)
ret = bdev_size(td, f);
else
f->real_file_size = -1;
{
int ret = 0;
+ if (td->odirect)
+ return 0;
+
/*
* FIXME: add blockdev flushing too
*/
- if (td->io_ops->flags & FIO_MMAPIO)
+ if (f->mmap)
ret = madvise(f->mmap, f->file_size, MADV_DONTNEED);
- else if (td->filetype == FIO_TYPE_FILE) {
- if (!td->odirect)
- ret = fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_DONTNEED);
- } else if (td->filetype == FIO_TYPE_BD) {
- if (!td->odirect)
- ret = blockdev_invalidate_cache(f->fd);
- } else if (td->filetype == FIO_TYPE_CHAR)
+ 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) {
return ret;
}
-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_random(td)) {
- 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_random(td)) {
- 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)
+void generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
{
- 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;
+ close(f->fd);
+ f->fd = -1;
}
-static int setup_file(struct thread_data *td, struct fio_file *f)
+int generic_open_file(struct thread_data *td, struct fio_file *f)
{
int flags = 0;
- if (td->io_ops->flags & FIO_SELFOPEN)
- return 0;
-
if (td->odirect)
flags |= OS_O_DIRECT;
if (td->sync_io)
if (td_write(td) || td_rw(td)) {
flags |= O_RDWR;
- if (td->filetype == FIO_TYPE_FILE) {
- if (!td->overwrite)
- flags |= O_TRUNC;
-
+ if (f->filetype == FIO_TYPE_FILE)
flags |= O_CREAT;
- }
- open_file(td, f, flags, 0600);
+ f->fd = open(f->file_name, flags, 0600);
} else {
- if (td->filetype == FIO_TYPE_CHAR)
+ if (f->filetype == FIO_TYPE_CHAR)
flags |= O_RDWR;
else
flags |= O_RDONLY;
- open_file(td, f, flags, 0);
+ f->fd = open(f->file_name, flags);
}
if (f->fd == -1) {
return 1;
}
- if (get_file_size(td, f)) {
- close_file(td, f);
- 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;
- int i, err = 0;
+ unsigned int i;
+ int err = 0;
for_each_file(td, f, i) {
- err = setup_file(td, f);
+ 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)
- close_file(td, f);
+ td_io_close_file(td, f);
return err;
}
int setup_files(struct thread_data *td)
{
struct fio_file *f;
- int err, i;
+ unsigned int i;
+ int err;
/*
* if ioengine defines a setup() method, it's responsible for
for_each_file(td, f, i)
td->total_file_size += f->file_size;
+ td->total_file_size = (td->total_file_size * td->nr_files) / td->open_files;
+
td->io_size = td->total_file_size;
if (td->io_size == 0) {
log_err("%s: no io blocks\n", td->name);
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)
- close_file(td, f);
+ td_io_close_file(td, f);
return err;
}
void close_files(struct thread_data *td)
{
struct fio_file *f;
- int i;
+ unsigned int i;
for_each_file(td, f, i) {
- if (!td->filename && f->unlink &&
- td->filetype == FIO_TYPE_FILE) {
+ if (!td->filename && (f->flags & FIO_FILE_UNLINK) &&
+ f->filetype == FIO_TYPE_FILE) {
unlink(f->file_name);
- free(f->file_name);
f->file_name = NULL;
}
- close_file(td, f);
+ td_io_close_file(td, f);
- if (f->mmap) {
- munmap(f->mmap, f->file_size);
- f->mmap = NULL;
- }
+ 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)) {
+ if (S_ISBLK(sb.st_mode))
+ f->filetype = FIO_TYPE_BD;
+ else if (S_ISCHR(sb.st_mode))
+ f->filetype = FIO_TYPE_CHAR;
+ }
+}
+
+void add_file(struct thread_data *td, const char *fname)
+{
+ int cur_files = td->open_files;
+ 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->open_files++;
+ td->nr_uniq_files = td->open_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 (td->io_ops->close_file)
+ td->io_ops->close_file(td, f);
+ td->nr_open_files--;
+ f->flags &= ~FIO_FILE_OPEN;
+}
projects / fio.git / blobdiff