static int fio_libpmem_open_file(struct thread_data *td, struct fio_file *f)
{
struct fio_libpmem_data *fdd;
int ret;
dprint(FD_IO,"DEBUG fio_libpmem_open_file\n");
dprint(FD_IO,"f->io_size=%ld \n",f->io_size);
dprint(FD_IO,"td->o.size=%lld \n",td->o.size);
dprint(FD_IO,"td->o.iodepth=%d\n",td->o.iodepth);
dprint(FD_IO,"td->o.iodepth_batch=%d \n",td->o.iodepth_batch);
ret = generic_open_file(td, f);
if (ret)
return ret;
fdd = calloc(1, sizeof(*fdd));
if (!fdd) {
int fio_unused __ret;
__ret = generic_close_file(td, f);
return 1;
}
FILE_SET_ENG_DATA(f, fdd);
return 0;
}
static int fio_mtd_open_file(struct thread_data *td, struct fio_file *f)
{
struct fio_mtd_data *fmd;
int ret;
ret = generic_open_file(td, f);
if (ret)
return ret;
fmd = calloc(1, sizeof(*fmd));
if (!fmd)
goto err_close;
ret = mtd_get_dev_info(desc, f->file_name, &fmd->info);
if (ret != 0) {
td_verror(td, errno, "mtd_get_dev_info");
goto err_free;
}
FILE_SET_ENG_DATA(f, fmd);
return 0;
err_free:
free(fmd);
err_close:
{
int fio_unused __ret;
__ret = generic_close_file(td, f);
return 1;
}
}
static int fio_mtd_close_file(struct thread_data *td, struct fio_file *f)
{
struct fio_mtd_data *fmd = FILE_ENG_DATA(f);
FILE_SET_ENG_DATA(f, NULL);
free(fmd);
return generic_close_file(td, f);
}
static int fio_mmapio_close_file(struct thread_data *td, struct fio_file *f)
{
struct fio_mmap_data *fmd = FILE_ENG_DATA(f);
FILE_SET_ENG_DATA(f, NULL);
free(fmd);
fio_file_clear_partial_mmap(f);
return generic_close_file(td, f);
}
static int fio_libpmem_close_file(struct thread_data *td, struct fio_file *f)
{
struct fio_libpmem_data *fdd = FILE_ENG_DATA(f);
dprint(FD_IO,"DEBUG fio_libpmem_close_file\n");
dprint(FD_IO,"td->o.odirect %d \n",td->o.odirect);
if (!td->o.odirect) {
dprint(FD_IO,"pmem_drain\n");
pmem_drain();
}
FILE_SET_ENG_DATA(f, NULL);
free(fdd);
fio_file_clear_partial_mmap(f);
return generic_close_file(td, f);
}
static int fio_mmapio_close(struct thread_data fio_unused *td,
struct fio_file *f)
{
int ret = 0, ret2;
if (f->mmap) {
if (munmap(f->mmap, f->io_size) < 0)
ret = errno;
f->mmap = NULL;
}
ret2 = generic_close_file(td, f);
if (!ret && ret2)
ret = ret2;
return ret;
}
static int fio_mmapio_open_file(struct thread_data *td, struct fio_file *f)
{
struct fio_mmap_data *fmd;
int ret;
ret = generic_open_file(td, f);
if (ret)
return ret;
fmd = calloc(1, sizeof(*fmd));
if (!fmd) {
int fio_unused __ret;
__ret = generic_close_file(td, f);
return 1;
}
FILE_SET_ENG_DATA(f, fmd);
return 0;
}
int generic_open_file(struct thread_data *td, struct fio_file *f)
{
int is_std = 0;
int flags = 0;
int from_hash = 0;
dprint(FD_FILE, "fd open %s\n", f->file_name);
if (td_trim(td) && f->filetype != FIO_TYPE_BD) {
log_err("fio: trim only applies to block device\n");
return 1;
}
if (!strcmp(f->file_name, "-")) {
if (td_rw(td)) {
log_err("fio: can't read/write to stdin/out\n");
return 1;
}
is_std = 1;
/*
* move output logging to stderr, if we are writing to stdout
*/
if (td_write(td))
f_out = stderr;
}
if (td_trim(td))
goto skip_flags;
if (td->o.odirect)
flags |= OS_O_DIRECT;
if (td->o.sync_io)
flags |= O_SYNC;
if (td->o.create_on_open)
flags |= O_CREAT;
skip_flags:
if (f->filetype != FIO_TYPE_FILE)
flags |= FIO_O_NOATIME;
open_again:
if (td_write(td)) {
if (!read_only)
flags |= O_RDWR;
if (f->filetype == FIO_TYPE_FILE)
flags |= O_CREAT;
if (is_std)
f->fd = dup(STDOUT_FILENO);
else
from_hash = file_lookup_open(f, flags);
} else if (td_read(td)) {
if (f->filetype == FIO_TYPE_CHAR && !read_only)
flags |= O_RDWR;
else
flags |= O_RDONLY;
if (is_std)
f->fd = dup(STDIN_FILENO);
else
from_hash = file_lookup_open(f, flags);
} else { //td trim
flags |= O_RDWR;
from_hash = file_lookup_open(f, flags);
}
if (f->fd == -1) {
char buf[FIO_VERROR_SIZE];
int __e = errno;
if (__e == EPERM && (flags & FIO_O_NOATIME)) {
flags &= ~FIO_O_NOATIME;
goto open_again;
}
if (__e == EMFILE && file_close_shadow_fds(td))
goto open_again;
snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
if (__e == EINVAL && (flags & OS_O_DIRECT)) {
log_err("fio: looks like your file system does not " \
"support direct=1/buffered=0\n");
}
td_verror(td, __e, buf);
}
if (!from_hash && f->fd != -1) {
if (add_file_hash(f)) {
int fio_unused ret;
/*
* Stash away descriptor for later close. This is to
* work-around a "feature" on Linux, where a close of
* an fd that has been opened for write will trigger
* udev to call blkid to check partitions, fs id, etc.
* That polutes the device cache, which can slow down
* unbuffered accesses.
*/
if (f->shadow_fd == -1)
f->shadow_fd = f->fd;
else {
/*
* OK to ignore, we haven't done anything
* with it
*/
ret = generic_close_file(td, f);
}
goto open_again;
}
}
return 0;
}
int generic_open_file(struct thread_data *td, struct fio_file *f)
{
int is_std = 0;
int flags = 0;
int from_hash = 0;
dprint(FD_FILE, "fd open %s\n", f->file_name);
if (!strcmp(f->file_name, "-")) {
if (td_rw(td)) {
log_err("fio: can't read/write to stdin/out\n");
return 1;
}
is_std = 1;
/*
* move output logging to stderr, if we are writing to stdout
*/
if (td_write(td))
f_out = stderr;
}
if (td->o.odirect)
flags |= OS_O_DIRECT;
if (td->o.sync_io)
flags |= O_SYNC;
if (f->filetype != FIO_TYPE_FILE)
flags |= FIO_O_NOATIME;
if (td->o.create_on_open)
flags |= O_CREAT;
open_again:
if (td_write(td)) {
if (!read_only)
flags |= O_RDWR;
if (f->filetype == FIO_TYPE_FILE)
flags |= O_CREAT;
if (is_std)
f->fd = dup(STDOUT_FILENO);
else
from_hash = file_lookup_open(f, flags);
} else {
if (f->filetype == FIO_TYPE_CHAR && !read_only)
flags |= O_RDWR;
else
flags |= O_RDONLY;
if (is_std)
f->fd = dup(STDIN_FILENO);
else
from_hash = file_lookup_open(f, flags);
}
if (f->fd == -1) {
char buf[FIO_VERROR_SIZE];
int __e = errno;
if (__e == EPERM && (flags & FIO_O_NOATIME)) {
flags &= ~FIO_O_NOATIME;
goto open_again;
}
snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
td_verror(td, __e, buf);
}
if (!from_hash && f->fd != -1) {
if (add_file_hash(f)) {
int fio_unused ret;
/*
* OK to ignore, we haven't done anything with it
*/
ret = generic_close_file(td, f);
goto open_again;
}
}
return 0;
}