| #include <unistd.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <assert.h> |
| #include <dirent.h> |
| #include <libgen.h> |
| #include <sys/stat.h> |
| #include <sys/mman.h> |
| #include <sys/types.h> |
| |
| #include "fio.h" |
| #include "smalloc.h" |
| #include "filehash.h" |
| |
| static int root_warn; |
| |
| static inline void clear_error(struct thread_data *td) |
| { |
| td->error = 0; |
| td->verror[0] = '\0'; |
| } |
| |
| /* |
| * Leaves f->fd open on success, caller must close |
| */ |
| static int extend_file(struct thread_data *td, struct fio_file *f) |
| { |
| int r, new_layout = 0, unlink_file = 0, flags; |
| unsigned long long left; |
| unsigned int bs; |
| char *b; |
| |
| if (read_only) { |
| log_err("fio: refusing extend of file due to read-only\n"); |
| return 0; |
| } |
| |
| /* |
| * check if we need to lay the file out complete again. fio |
| * does that for operations involving reads, or for writes |
| * where overwrite is set |
| */ |
| if (td_read(td) || (td_write(td) && td->o.overwrite) || |
| (td_write(td) && td->io_ops->flags & FIO_NOEXTEND)) |
| new_layout = 1; |
| if (td_write(td) && !td->o.overwrite) |
| unlink_file = 1; |
| |
| if (unlink_file || new_layout) { |
| dprint(FD_FILE, "layout unlink %s\n", f->file_name); |
| if ((unlink(f->file_name) < 0) && (errno != ENOENT)) { |
| td_verror(td, errno, "unlink"); |
| return 1; |
| } |
| } |
| |
| flags = O_WRONLY | O_CREAT; |
| if (new_layout) |
| flags |= O_TRUNC; |
| |
| dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags); |
| f->fd = open(f->file_name, flags, 0644); |
| if (f->fd < 0) { |
| td_verror(td, errno, "open"); |
| return 1; |
| } |
| |
| #ifdef FIO_HAVE_FALLOCATE |
| if (td->o.fallocate && !td->o.fill_device) { |
| dprint(FD_FILE, "fallocate file %s size %llu\n", f->file_name, |
| f->real_file_size); |
| |
| r = posix_fallocate(f->fd, 0, f->real_file_size); |
| if (r > 0) { |
| log_err("fio: posix_fallocate fails: %s\n", |
| strerror(r)); |
| } |
| } |
| #endif |
| |
| if (!new_layout) |
| goto done; |
| |
| /* |
| * The size will be -1ULL when fill_device is used, so don't truncate |
| * or fallocate this file, just write it |
| */ |
| if (!td->o.fill_device) { |
| dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name, |
| f->real_file_size); |
| if (ftruncate(f->fd, f->real_file_size) == -1) { |
| td_verror(td, errno, "ftruncate"); |
| goto err; |
| } |
| } |
| |
| b = malloc(td->o.max_bs[DDIR_WRITE]); |
| memset(b, 0, td->o.max_bs[DDIR_WRITE]); |
| |
| left = f->real_file_size; |
| while (left && !td->terminate) { |
| bs = td->o.max_bs[DDIR_WRITE]; |
| if (bs > left) |
| bs = left; |
| |
| r = write(f->fd, b, bs); |
| |
| if (r > 0) { |
| left -= r; |
| continue; |
| } else { |
| if (r < 0) { |
| int __e = errno; |
| |
| if (__e == ENOSPC) { |
| if (td->o.fill_device) |
| break; |
| log_info("fio: ENOSPC on laying out " |
| "file, stopping\n"); |
| break; |
| } |
| td_verror(td, errno, "write"); |
| } else |
| td_verror(td, EIO, "write"); |
| |
| break; |
| } |
| } |
| |
| if (td->terminate) { |
| dprint(FD_FILE, "terminate unlink %s\n", f->file_name); |
| unlink(f->file_name); |
| } else if (td->o.create_fsync) { |
| if (fsync(f->fd) < 0) { |
| td_verror(td, errno, "fsync"); |
| goto err; |
| } |
| } |
| if (td->o.fill_device && !td_write(td)) { |
| fio_file_clear_size_known(f); |
| if (td_io_get_file_size(td, f)) |
| goto err; |
| if (f->io_size > f->real_file_size) |
| f->io_size = f->real_file_size; |
| } |
| |
| free(b); |
| done: |
| return 0; |
| err: |
| close(f->fd); |
| f->fd = -1; |
| return 1; |
| } |
| |
| static int pre_read_file(struct thread_data *td, struct fio_file *f) |
| { |
| int r, did_open = 0, old_runstate; |
| unsigned long long left; |
| unsigned int bs; |
| char *b; |
| |
| if (td->io_ops->flags & FIO_PIPEIO) |
| return 0; |
| |
| if (!fio_file_open(f)) { |
| if (td->io_ops->open_file(td, f)) { |
| log_err("fio: cannot pre-read, failed to open file\n"); |
| return 1; |
| } |
| did_open = 1; |
| } |
| |
| old_runstate = td->runstate; |
| td_set_runstate(td, TD_PRE_READING); |
| |
| bs = td->o.max_bs[DDIR_READ]; |
| b = malloc(bs); |
| memset(b, 0, bs); |
| |
| lseek(f->fd, f->file_offset, SEEK_SET); |
| left = f->io_size; |
| |
| while (left && !td->terminate) { |
| if (bs > left) |
| bs = left; |
| |
| r = read(f->fd, b, bs); |
| |
| if (r == (int) bs) { |
| left -= bs; |
| continue; |
| } else { |
| td_verror(td, EIO, "pre_read"); |
| break; |
| } |
| } |
| |
| td_set_runstate(td, old_runstate); |
| |
| if (did_open) |
| td->io_ops->close_file(td, f); |
| free(b); |
| return 0; |
| } |
| |
| static unsigned long long get_rand_file_size(struct thread_data *td) |
| { |
| unsigned long long ret, sized; |
| long r; |
| |
| r = os_random_long(&td->file_size_state); |
| sized = td->o.file_size_high - td->o.file_size_low; |
| ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0))); |
| ret += td->o.file_size_low; |
| ret -= (ret % td->o.rw_min_bs); |
| return ret; |
| } |
| |
| static int file_size(struct thread_data *td, struct fio_file *f) |
| { |
| struct stat st; |
| |
| if (stat(f->file_name, &st) == -1) { |
| td_verror(td, errno, "fstat"); |
| return 1; |
| } |
| |
| f->real_file_size = st.st_size; |
| return 0; |
| } |
| |
| static int bdev_size(struct thread_data *td, struct fio_file *f) |
| { |
| unsigned long long bytes; |
| int r; |
| |
| if (td->io_ops->open_file(td, f)) { |
| log_err("fio: failed opening blockdev %s for size check\n", |
| f->file_name); |
| return 1; |
| } |
| |
| r = blockdev_size(f->fd, &bytes); |
| if (r) { |
| td_verror(td, r, "blockdev_size"); |
| printf("fd is %d\n", f->fd); |
| goto err; |
| } |
| |
| if (!bytes) { |
| log_err("%s: zero sized block device?\n", f->file_name); |
| goto err; |
| } |
| |
| f->real_file_size = bytes; |
| td->io_ops->close_file(td, f); |
| return 0; |
| err: |
| td->io_ops->close_file(td, f); |
| return 1; |
| } |
| |
| static int char_size(struct thread_data *td, struct fio_file *f) |
| { |
| #ifdef FIO_HAVE_CHARDEV_SIZE |
| unsigned long long bytes; |
| int r; |
| |
| if (td->io_ops->open_file(td, f)) { |
| log_err("fio: failed opening blockdev %s for size check\n", |
| f->file_name); |
| return 1; |
| } |
| |
| r = chardev_size(f->fd, &bytes); |
| if (r) { |
| td_verror(td, r, "chardev_size"); |
| goto err; |
| } |
| |
| if (!bytes) { |
| log_err("%s: zero sized char device?\n", f->file_name); |
| goto err; |
| } |
| |
| f->real_file_size = bytes; |
| td->io_ops->close_file(td, f); |
| return 0; |
| err: |
| td->io_ops->close_file(td, f); |
| return 1; |
| #else |
| f->real_file_size = -1ULL; |
| return 0; |
| #endif |
| } |
| |
| static int get_file_size(struct thread_data *td, struct fio_file *f) |
| { |
| int ret = 0; |
| |
| if (fio_file_size_known(f)) |
| return 0; |
| |
| if (f->filetype == FIO_TYPE_FILE) |
| ret = file_size(td, f); |
| else if (f->filetype == FIO_TYPE_BD) |
| ret = bdev_size(td, f); |
| else if (f->filetype == FIO_TYPE_CHAR) |
| ret = char_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->o.name, |
| f->file_offset, f->real_file_size); |
| return 1; |
| } |
| |
| fio_file_set_size_known(f); |
| return 0; |
| } |
| |
| static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f, |
| unsigned long long off, |
| unsigned long long len) |
| { |
| int ret = 0; |
| |
| if (len == -1ULL) |
| len = f->io_size; |
| if (off == -1ULL) |
| off = f->file_offset; |
| |
| if (len == -1ULL || off == -1ULL) |
| return 0; |
| |
| dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off, |
| len); |
| |
| /* |
| * FIXME: add blockdev flushing too |
| */ |
| if (f->mmap_ptr) { |
| ret = madvise(f->mmap_ptr, f->mmap_sz, MADV_DONTNEED); |
| #ifdef FIO_MADV_FREE |
| (void) madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE); |
| #endif |
| } else if (f->filetype == FIO_TYPE_FILE) { |
| ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED); |
| } else if (f->filetype == FIO_TYPE_BD) { |
| ret = blockdev_invalidate_cache(f->fd); |
| if (ret < 0 && errno == EACCES && geteuid()) { |
| if (!root_warn) { |
| log_err("fio: only root may flush block " |
| "devices. Cache flush bypassed!\n"); |
| root_warn = 1; |
| } |
| ret = 0; |
| } |
| } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
| ret = 0; |
| |
| if (ret < 0) { |
| td_verror(td, errno, "invalidate_cache"); |
| return 1; |
| } else if (ret > 0) { |
| td_verror(td, ret, "invalidate_cache"); |
| return 1; |
| } |
| |
| return ret; |
| |
| } |
| |
| int file_invalidate_cache(struct thread_data *td, struct fio_file *f) |
| { |
| if (!fio_file_open(f)) |
| return 0; |
| |
| return __file_invalidate_cache(td, f, -1ULL, -1ULL); |
| } |
| |
| int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
| { |
| int ret = 0; |
| |
| dprint(FD_FILE, "fd close %s\n", f->file_name); |
| |
| remove_file_hash(f); |
| |
| if (close(f->fd) < 0) |
| ret = errno; |
| |
| f->fd = -1; |
| return ret; |
| } |
| |
| static int file_lookup_open(struct fio_file *f, int flags) |
| { |
| struct fio_file *__f; |
| int from_hash; |
| |
| __f = lookup_file_hash(f->file_name); |
| if (__f) { |
| dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
| /* |
| * racy, need the __f->lock locked |
| */ |
| f->lock = __f->lock; |
| f->lock_owner = __f->lock_owner; |
| f->lock_batch = __f->lock_batch; |
| f->lock_ddir = __f->lock_ddir; |
| from_hash = 1; |
| } else { |
| dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
| from_hash = 0; |
| } |
| |
| f->fd = open(f->file_name, flags, 0600); |
| return from_hash; |
| } |
| |
| 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 ret; |
| |
| /* |
| * OK to ignore, we haven't done anything with it |
| */ |
| ret = generic_close_file(td, f); |
| goto open_again; |
| } |
| } |
| |
| return 0; |
| } |
| |
| int generic_get_file_size(struct thread_data *td, struct fio_file *f) |
| { |
| return get_file_size(td, f); |
| } |
| |
| /* |
| * open/close all files, so that ->real_file_size gets set |
| */ |
| static int get_file_sizes(struct thread_data *td) |
| { |
| struct fio_file *f; |
| unsigned int i; |
| int err = 0; |
| |
| for_each_file(td, f, i) { |
| dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, |
| f->file_name); |
| |
| if (td_io_get_file_size(td, f)) { |
| if (td->error != ENOENT) { |
| log_err("%s\n", td->verror); |
| err = 1; |
| } |
| clear_error(td); |
| } |
| |
| if (f->real_file_size == -1ULL && td->o.size) |
| f->real_file_size = td->o.size / td->o.nr_files; |
| } |
| |
| return err; |
| } |
| |
| struct fio_mount { |
| struct flist_head list; |
| const char *base; |
| char __base[256]; |
| unsigned int key; |
| }; |
| |
| /* |
| * Get free number of bytes for each file on each unique mount. |
| */ |
| static unsigned long long get_fs_free_counts(struct thread_data *td) |
| { |
| struct flist_head *n, *tmp; |
| unsigned long long ret = 0; |
| struct fio_mount *fm; |
| FLIST_HEAD(list); |
| struct fio_file *f; |
| unsigned int i; |
| |
| for_each_file(td, f, i) { |
| struct stat sb; |
| char buf[256]; |
| |
| if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) { |
| if (f->real_file_size != -1ULL) |
| ret += f->real_file_size; |
| continue; |
| } else if (f->filetype != FIO_TYPE_FILE) |
| continue; |
| |
| strcpy(buf, f->file_name); |
| |
| if (stat(buf, &sb) < 0) { |
| if (errno != ENOENT) |
| break; |
| strcpy(buf, "."); |
| if (stat(buf, &sb) < 0) |
| break; |
| } |
| |
| fm = NULL; |
| flist_for_each(n, &list) { |
| fm = flist_entry(n, struct fio_mount, list); |
| if (fm->key == sb.st_dev) |
| break; |
| |
| fm = NULL; |
| } |
| |
| if (fm) |
| continue; |
| |
| fm = malloc(sizeof(*fm)); |
| strcpy(fm->__base, buf); |
| fm->base = basename(fm->__base); |
| fm->key = sb.st_dev; |
| flist_add(&fm->list, &list); |
| } |
| |
| flist_for_each_safe(n, tmp, &list) { |
| unsigned long long sz; |
| |
| fm = flist_entry(n, struct fio_mount, list); |
| flist_del(&fm->list); |
| |
| sz = get_fs_size(fm->base); |
| if (sz && sz != -1ULL) |
| ret += sz; |
| |
| free(fm); |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * Open the files and setup files sizes, creating files if necessary. |
| */ |
| int setup_files(struct thread_data *td) |
| { |
| unsigned long long total_size, extend_size; |
| struct fio_file *f; |
| unsigned int i; |
| int err = 0, need_extend; |
| |
| dprint(FD_FILE, "setup files\n"); |
| |
| if (td->o.read_iolog_file) |
| return 0; |
| |
| /* |
| * if ioengine defines a setup() method, it's responsible for |
| * opening the files and setting f->real_file_size to indicate |
| * the valid range for that file. |
| */ |
| if (td->io_ops->setup) |
| err = td->io_ops->setup(td); |
| else |
| err = get_file_sizes(td); |
| |
| if (err) |
| return err; |
| |
| /* |
| * check sizes. if the files/devices do not exist and the size |
| * isn't passed to fio, abort. |
| */ |
| total_size = 0; |
| for_each_file(td, f, i) { |
| if (f->real_file_size == -1ULL) |
| total_size = -1ULL; |
| else |
| total_size += f->real_file_size; |
| } |
| |
| if (td->o.fill_device) |
| td->fill_device_size = get_fs_free_counts(td); |
| |
| /* |
| * device/file sizes are zero and no size given, punt |
| */ |
| if ((!total_size || total_size == -1ULL) && !td->o.size && |
| !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
| log_err("%s: you need to specify size=\n", td->o.name); |
| td_verror(td, EINVAL, "total_file_size"); |
| return 1; |
| } |
| |
| /* |
| * now file sizes are known, so we can set ->io_size. if size= is |
| * not given, ->io_size is just equal to ->real_file_size. if size |
| * is given, ->io_size is size / nr_files. |
| */ |
| extend_size = total_size = 0; |
| need_extend = 0; |
| for_each_file(td, f, i) { |
| f->file_offset = td->o.start_offset; |
| |
| if (!td->o.file_size_low) { |
| /* |
| * no file size range given, file size is equal to |
| * total size divided by number of files. if that is |
| * zero, set it to the real file size. |
| */ |
| f->io_size = td->o.size / td->o.nr_files; |
| if (!f->io_size) |
| f->io_size = f->real_file_size - f->file_offset; |
| } else if (f->real_file_size < td->o.file_size_low || |
| f->real_file_size > td->o.file_size_high) { |
| if (f->file_offset > td->o.file_size_low) |
| goto err_offset; |
| /* |
| * file size given. if it's fixed, use that. if it's a |
| * range, generate a random size in-between. |
| */ |
| if (td->o.file_size_low == td->o.file_size_high) { |
| f->io_size = td->o.file_size_low |
| - f->file_offset; |
| } else { |
| f->io_size = get_rand_file_size(td) |
| - f->file_offset; |
| } |
| } else |
| f->io_size = f->real_file_size - f->file_offset; |
| |
| if (f->io_size == -1ULL) |
| total_size = -1ULL; |
| else |
| total_size += f->io_size; |
| |
| if (f->filetype == FIO_TYPE_FILE && |
| (f->io_size + f->file_offset) > f->real_file_size && |
| !(td->io_ops->flags & FIO_DISKLESSIO)) { |
| if (!td->o.create_on_open) { |
| need_extend++; |
| extend_size += (f->io_size + f->file_offset); |
| } else |
| f->real_file_size = f->io_size + f->file_offset; |
| fio_file_set_extend(f); |
| } |
| } |
| |
| if (!td->o.size || td->o.size > total_size) |
| td->o.size = total_size; |
| |
| /* |
| * See if we need to extend some files |
| */ |
| if (need_extend) { |
| temp_stall_ts = 1; |
| if (!terse_output) |
| log_info("%s: Laying out IO file(s) (%u file(s) /" |
| " %LuMB)\n", td->o.name, need_extend, |
| extend_size >> 20); |
| |
| for_each_file(td, f, i) { |
| unsigned long long old_len = -1ULL, extend_len = -1ULL; |
| |
| if (!fio_file_extend(f)) |
| continue; |
| |
| assert(f->filetype == FIO_TYPE_FILE); |
| fio_file_clear_extend(f); |
| if (!td->o.fill_device) { |
| old_len = f->real_file_size; |
| extend_len = f->io_size + f->file_offset - |
| old_len; |
| } |
| f->real_file_size = (f->io_size + f->file_offset); |
| err = extend_file(td, f); |
| if (err) |
| break; |
| |
| err = __file_invalidate_cache(td, f, old_len, |
| extend_len); |
| close(f->fd); |
| f->fd = -1; |
| if (err) |
| break; |
| } |
| temp_stall_ts = 0; |
| } |
| |
| if (err) |
| return err; |
| |
| if (!td->o.zone_size) |
| td->o.zone_size = td->o.size; |
| |
| /* |
| * iolog already set the total io size, if we read back |
| * stored entries. |
| */ |
| if (!td->o.read_iolog_file) |
| td->total_io_size = td->o.size * td->o.loops; |
| return 0; |
| err_offset: |
| log_err("%s: you need to specify valid offset=\n", td->o.name); |
| return 1; |
| } |
| |
| int pre_read_files(struct thread_data *td) |
| { |
| struct fio_file *f; |
| unsigned int i; |
| |
| dprint(FD_FILE, "pre_read files\n"); |
| |
| for_each_file(td, f, i) { |
| pre_read_file(td, f); |
| } |
| |
| return 1; |
| } |
| |
| int init_random_map(struct thread_data *td) |
| { |
| unsigned long long blocks, num_maps; |
| struct fio_file *f; |
| unsigned int i; |
| |
| if (td->o.norandommap || !td_random(td)) |
| return 0; |
| |
| for_each_file(td, f, i) { |
| blocks = (f->real_file_size + td->o.rw_min_bs - 1) / |
| (unsigned long long) td->o.rw_min_bs; |
| num_maps = (blocks + BLOCKS_PER_MAP - 1) / |
| (unsigned long long) BLOCKS_PER_MAP; |
| f->file_map = smalloc(num_maps * sizeof(int)); |
| if (f->file_map) { |
| f->num_maps = num_maps; |
| continue; |
| } |
| if (!td->o.softrandommap) { |
| log_err("fio: failed allocating random map. If running" |
| " a large number of jobs, try the 'norandommap'" |
| " option or set 'softrandommap'. Or give" |
| " a larger --alloc-size to fio.\n"); |
| return 1; |
| } |
| |
| log_info("fio: file %s failed allocating random map. Running " |
| "job without.\n", f->file_name); |
| f->num_maps = 0; |
| } |
| |
| return 0; |
| } |
| |
| void close_files(struct thread_data *td) |
| { |
| struct fio_file *f; |
| unsigned int i; |
| |
| for_each_file(td, f, i) { |
| if (fio_file_open(f)) |
| td_io_close_file(td, f); |
| } |
| } |
| |
| void close_and_free_files(struct thread_data *td) |
| { |
| struct fio_file *f; |
| unsigned int i; |
| |
| dprint(FD_FILE, "close files\n"); |
| |
| for_each_file(td, f, i) { |
| if (td->o.unlink && f->filetype == FIO_TYPE_FILE) { |
| dprint(FD_FILE, "free unlink %s\n", f->file_name); |
| unlink(f->file_name); |
| } |
| |
| if (fio_file_open(f)) |
| td_io_close_file(td, f); |
| |
| remove_file_hash(f); |
| |
| sfree(f->file_name); |
| f->file_name = NULL; |
| sfree(f->file_map); |
| f->file_map = NULL; |
| sfree(f); |
| } |
| |
| td->o.filename = NULL; |
| free(td->files); |
| td->files_index = 0; |
| td->files = NULL; |
| td->o.nr_files = 0; |
| } |
| |
| static void get_file_type(struct fio_file *f) |
| { |
| struct stat sb; |
| |
| if (!strcmp(f->file_name, "-")) |
| f->filetype = FIO_TYPE_PIPE; |
| else |
| f->filetype = FIO_TYPE_FILE; |
| |
| if (!stat(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; |
| else if (S_ISFIFO(sb.st_mode)) |
| f->filetype = FIO_TYPE_PIPE; |
| } |
| } |
| |
| int add_file(struct thread_data *td, const char *fname) |
| { |
| int cur_files = td->files_index; |
| char file_name[PATH_MAX]; |
| struct fio_file *f; |
| int len = 0; |
| |
| dprint(FD_FILE, "add file %s\n", fname); |
| |
| f = smalloc(sizeof(*f)); |
| if (!f) { |
| log_err("fio: smalloc OOM\n"); |
| assert(0); |
| } |
| |
| f->fd = -1; |
| fio_file_reset(f); |
| |
| if (td->files_size <= td->files_index) { |
| int new_size = td->o.nr_files + 1; |
| |
| dprint(FD_FILE, "resize file array to %d files\n", new_size); |
| |
| td->files = realloc(td->files, new_size * sizeof(f)); |
| td->files_size = new_size; |
| } |
| td->files[cur_files] = f; |
| |
| /* |
| * init function, io engine may not be loaded yet |
| */ |
| if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) |
| f->real_file_size = -1ULL; |
| |
| if (td->o.directory) |
| len = sprintf(file_name, "%s/", td->o.directory); |
| |
| sprintf(file_name + len, "%s", fname); |
| f->file_name = smalloc_strdup(file_name); |
| if (!f->file_name) { |
| log_err("fio: smalloc OOM\n"); |
| assert(0); |
| } |
| |
| get_file_type(f); |
| |
| switch (td->o.file_lock_mode) { |
| case FILE_LOCK_NONE: |
| break; |
| case FILE_LOCK_READWRITE: |
| f->lock = fio_mutex_rw_init(); |
| break; |
| case FILE_LOCK_EXCLUSIVE: |
| f->lock = fio_mutex_init(1); |
| break; |
| default: |
| log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); |
| assert(0); |
| } |
| |
| td->files_index++; |
| if (f->filetype == FIO_TYPE_FILE) |
| td->nr_normal_files++; |
| |
| dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, |
| cur_files); |
| |
| return cur_files; |
| } |
| |
| int add_file_exclusive(struct thread_data *td, const char *fname) |
| { |
| struct fio_file *f; |
| unsigned int i; |
| |
| for_each_file(td, f, i) { |
| if (!strcmp(f->file_name, fname)) |
| return i; |
| } |
| |
| return add_file(td, fname); |
| } |
| |
| void get_file(struct fio_file *f) |
| { |
| dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
| assert(fio_file_open(f)); |
| f->references++; |
| } |
| |
| int put_file(struct thread_data *td, struct fio_file *f) |
| { |
| int f_ret = 0, ret = 0; |
| |
| dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
| |
| if (!fio_file_open(f)) { |
| assert(f->fd == -1); |
| return 0; |
| } |
| |
| assert(f->references); |
| if (--f->references) |
| return 0; |
| |
| if (should_fsync(td) && td->o.fsync_on_close) |
| f_ret = fsync(f->fd); |
| |
| if (td->io_ops->close_file) |
| ret = td->io_ops->close_file(td, f); |
| |
| if (!ret) |
| ret = f_ret; |
| |
| td->nr_open_files--; |
| fio_file_clear_open(f); |
| assert(f->fd == -1); |
| return ret; |
| } |
| |
| void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
| { |
| if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
| return; |
| |
| if (f->lock_owner == td && f->lock_batch--) |
| return; |
| |
| if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { |
| if (ddir == DDIR_READ) |
| fio_mutex_down_read(f->lock); |
| else |
| fio_mutex_down_write(f->lock); |
| } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) |
| fio_mutex_down(f->lock); |
| |
| f->lock_owner = td; |
| f->lock_batch = td->o.lockfile_batch; |
| f->lock_ddir = ddir; |
| } |
| |
| void unlock_file(struct thread_data *td, struct fio_file *f) |
| { |
| if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
| return; |
| if (f->lock_batch) |
| return; |
| |
| if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { |
| const int is_read = f->lock_ddir == DDIR_READ; |
| int val = fio_mutex_getval(f->lock); |
| |
| if ((is_read && val == 1) || (!is_read && val == -1)) |
| f->lock_owner = NULL; |
| |
| if (is_read) |
| fio_mutex_up_read(f->lock); |
| else |
| fio_mutex_up_write(f->lock); |
| } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) { |
| int val = fio_mutex_getval(f->lock); |
| |
| if (val == 0) |
| f->lock_owner = NULL; |
| |
| fio_mutex_up(f->lock); |
| } |
| } |
| |
| void unlock_file_all(struct thread_data *td, struct fio_file *f) |
| { |
| if (f->lock_owner != td) |
| return; |
| |
| f->lock_batch = 0; |
| unlock_file(td, f); |
| } |
| |
| static int recurse_dir(struct thread_data *td, const char *dirname) |
| { |
| struct dirent *dir; |
| int ret = 0; |
| DIR *D; |
| |
| D = opendir(dirname); |
| if (!D) { |
| char buf[FIO_VERROR_SIZE]; |
| |
| snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); |
| td_verror(td, errno, buf); |
| 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->o.nr_files++; |
| continue; |
| } |
| if (!S_ISDIR(sb.st_mode)) |
| continue; |
| |
| ret = recurse_dir(td, full_path); |
| if (ret) |
| break; |
| } |
| |
| closedir(D); |
| return ret; |
| } |
| |
| int add_dir_files(struct thread_data *td, const char *path) |
| { |
| int ret = recurse_dir(td, path); |
| |
| if (!ret) |
| log_info("fio: opendir added %d files\n", td->o.nr_files); |
| |
| return ret; |
| } |
| |
| void dup_files(struct thread_data *td, struct thread_data *org) |
| { |
| struct fio_file *f; |
| unsigned int i; |
| |
| dprint(FD_FILE, "dup files: %d\n", org->files_index); |
| |
| if (!org->files) |
| return; |
| |
| td->files = malloc(org->files_index * sizeof(f)); |
| |
| for_each_file(org, f, i) { |
| struct fio_file *__f; |
| |
| __f = smalloc(sizeof(*__f)); |
| if (!__f) { |
| log_err("fio: smalloc OOM\n"); |
| assert(0); |
| } |
| __f->fd = -1; |
| fio_file_reset(__f); |
| |
| if (f->file_name) { |
| __f->file_name = smalloc_strdup(f->file_name); |
| if (!__f->file_name) { |
| log_err("fio: smalloc OOM\n"); |
| assert(0); |
| } |
| |
| __f->filetype = f->filetype; |
| } |
| |
| td->files[i] = __f; |
| } |
| } |
| |
| /* |
| * Returns the index that matches the filename, or -1 if not there |
| */ |
| int get_fileno(struct thread_data *td, const char *fname) |
| { |
| struct fio_file *f; |
| unsigned int i; |
| |
| for_each_file(td, f, i) |
| if (!strcmp(f->file_name, fname)) |
| return i; |
| |
| return -1; |
| } |
| |
| /* |
| * For log usage, where we add/open/close files automatically |
| */ |
| void free_release_files(struct thread_data *td) |
| { |
| close_files(td); |
| td->files_index = 0; |
| td->nr_normal_files = 0; |
| } |