#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 (td->filetype != FIO_TYPE_FILE || (td->io_ops->flags & FIO_NULLIO))
return 0;
- if (stat(f->file_name, &st) == -1)
+ if (lstat(f->file_name, &st) == -1)
return 1;
- else if (st.st_size < (off_t) f->file_size)
+
+ /*
+ * 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;
f->fd = open(f->file_name, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (f->fd < 0) {
- td_verror(td, errno);
+ td_verror(td, errno, "open");
return 1;
}
if (ftruncate(f->fd, f->file_size) == -1) {
- td_verror(td, errno);
+ td_verror(td, errno, "ftruncate");
goto err;
}
if (posix_fallocate(f->fd, 0, f->file_size) < 0) {
- td_verror(td, errno);
+ td_verror(td, errno, "posix_fallocate");
goto err;
}
continue;
} else {
if (r < 0)
- td_verror(td, errno);
+ td_verror(td, errno, "write");
else
- td_verror(td, EIO);
+ td_verror(td, EIO, "write");
break;
}
return 0;
need_create = 0;
- if (td->filetype == FIO_TYPE_FILE)
- for_each_file(td, f, i)
- need_create += file_ok(td, f);
+ if (td->filetype == FIO_TYPE_FILE) {
+ for_each_file(td, f, i) {
+ int 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);
+ td_verror(td, EINVAL, "file_size");
return 1;
}
temp_stall_ts = 1;
- fprintf(f_out, "%s: Laying out IO file(s) (%d x %LuMiB == %LuMiB)\n",
+ 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;
{
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);
+ td_verror(td, errno, "fstat");
return 1;
}
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;
- f->file_size -= f->file_offset;
return 0;
}
r = blockdev_size(f->fd, &bytes);
if (r) {
- td_verror(td, r);
+ td_verror(td, r, "blockdev_size");
return 1;
}
*/
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)
+ 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)
ret = 0;
if (ret < 0) {
- td_verror(td, errno);
+ td_verror(td, errno, "invalidate_cache");
return 1;
}
- return 0;
+ return ret;
}
static int __setup_file_mmap(struct thread_data *td, struct fio_file *f)
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);
+ td_verror(td, errno, "mmap");
return 1;
}
if (td->invalidate_cache && file_invalidate_cache(td, f))
return 1;
- if (td->sequential) {
+ if (!td_random(td)) {
if (madvise(f->mmap, f->file_size, MADV_SEQUENTIAL) < 0) {
- td_verror(td, errno);
+ td_verror(td, errno, "madvise");
return 1;
}
} else {
if (madvise(f->mmap, f->file_size, MADV_RANDOM) < 0) {
- td_verror(td, errno);
+ td_verror(td, errno, "madvise");
return 1;
}
}
if (td->invalidate_cache && file_invalidate_cache(td, f))
return 1;
- if (td->sequential) {
+ if (!td_random(td)) {
if (fadvise(f->fd, f->file_offset, f->file_size, POSIX_FADV_SEQUENTIAL) < 0) {
- td_verror(td, errno);
+ 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);
+ td_verror(td, errno, "fadvise");
return 1;
}
}
{
int flags = 0;
- if (td->odirect)
- flags |= OS_O_DIRECT;
- if (td->sync_io)
- flags |= O_SYNC;
+ if (td->io_ops->flags & FIO_SELFOPEN)
+ return 0;
- if (td_write(td) || td_rw(td)) {
- flags |= O_RDWR;
+ /*
+ * 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;
+ if (td->filetype == FIO_TYPE_FILE) {
+ if (!td->overwrite)
+ flags |= O_TRUNC;
- flags |= O_CREAT;
- }
+ 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;
+ open_file(td, f, flags, 0600);
+ } else {
+ if (td->filetype == FIO_TYPE_CHAR)
+ flags |= O_RDWR;
+ else
+ flags |= O_RDONLY;
- f->fd = open(f->file_name, flags);
+ open_file(td, f, flags, 0);
+ }
}
if (f->fd == -1) {
- td_verror(td, errno);
+ 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))
+ if (get_file_size(td, f)) {
+ close_file(td, f);
return 1;
+ }
return 0;
}
if (!err)
return 0;
- for_each_file(td, f, i) {
- if (f->fd != -1) {
- close(f->fd);
- f->fd = -1;
- }
- }
+ for_each_file(td, f, i)
+ close_file(td, f);
return err;
}
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);
+ td_verror(td, EINVAL, "total_file_size");
return 1;
}
else
err = setup_files_plain(td);
- for_each_file(td, f, i) {
- if (f->fd != -1) {
- close(f->fd);
- f->fd = -1;
- }
- }
+ for_each_file(td, f, i)
+ close_file(td, f);
return err;
}
int i;
for_each_file(td, f, i) {
- if (!td->filename && td->unlink &&
+ 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;
- }
+
+ close_file(td, f);
+
if (f->mmap) {
munmap(f->mmap, f->file_size);
f->mmap = NULL;
projects / fio.git / blobdiff