+#ifndef FIO_FILE_H
+#define FIO_FILE_H
+
+#include "io_ddir.h"
+
+/*
+ * The type of object we are working on
+ */
+enum fio_filetype {
+ FIO_TYPE_FILE = 1, /* plain file */
+ FIO_TYPE_BD, /* block device */
+ FIO_TYPE_CHAR, /* character device */
+ FIO_TYPE_PIPE, /* pipe */
+};
+
+enum fio_file_flags {
+ FIO_FILE_open = 1 << 0, /* file is open */
+ FIO_FILE_closing = 1 << 1, /* file being closed */
+ FIO_FILE_extend = 1 << 2, /* needs extend */
+ FIO_FILE_done = 1 << 3, /* io completed to this file */
+ FIO_FILE_size_known = 1 << 4, /* size has been set */
+ FIO_FILE_hashed = 1 << 5, /* file is on hash */
+};
+
+enum file_lock_mode {
+ FILE_LOCK_NONE,
+ FILE_LOCK_EXCLUSIVE,
+ FILE_LOCK_READWRITE,
+};
+
+/*
+ * Each thread_data structure has a number of files associated with it,
+ * this structure holds state information for a single file.
+ */
+struct fio_file {
+ struct flist_head hash_list;
+ enum fio_filetype filetype;
+
+ /*
+ * A file may not be a file descriptor, let the io engine decide
+ */
+ union {
+ unsigned long file_data;
+ int fd;
+ };
+
+ /*
+ * filename and possible memory mapping
+ */
+ char *file_name;
+ unsigned int major, minor;
+
+ void *mmap_ptr;
+ size_t mmap_sz;
+ off_t mmap_off;
+
+ /*
+ * size of the file, offset into file, and io size from that offset
+ */
+ unsigned long long real_file_size;
+ unsigned long long file_offset;
+ unsigned long long io_size;
+
+ unsigned long long last_pos;
+
+ /*
+ * if io is protected by a semaphore, this is set
+ */
+ struct fio_mutex *lock;
+ void *lock_owner;
+ unsigned int lock_batch;
+ enum fio_ddir lock_ddir;
+
+ /*
+ * block map for random io
+ */
+ unsigned int *file_map;
+ unsigned int num_maps;
+ unsigned int last_free_lookup;
+
+ int references;
+ enum fio_file_flags flags;
+
+ struct disk_util *du;
+};
+
+#define FILE_FLAG_FNS(name) \
+static inline void fio_file_set_##name(struct fio_file *f) \
+{ \
+ (f)->flags |= FIO_FILE_##name; \
+} \
+static inline void fio_file_clear_##name(struct fio_file *f) \
+{ \
+ (f)->flags &= ~FIO_FILE_##name; \
+} \
+static inline int fio_file_##name(struct fio_file *f) \
+{ \
+ return ((f)->flags & FIO_FILE_##name) != 0; \
+}
+
+FILE_FLAG_FNS(open);
+FILE_FLAG_FNS(closing);
+FILE_FLAG_FNS(extend);
+FILE_FLAG_FNS(done);
+FILE_FLAG_FNS(size_known);
+FILE_FLAG_FNS(hashed);
+#undef FILE_FLAG_FNS
+
+#endif