X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=file.h;h=22ec742fc1bc47deb22d5552202100b3ea042717;hp=dc22d4e058a177f373131acb370c838d4441b88f;hb=50d795a5b72ea43ee125012a2aec7e4cfad20de9;hpb=e8462bd8250cf3ff2d41f17e1a4d4cefc70b6b37

diff --git a/file.h b/file.h
index dc22d4e0..22ec742f 100644
--- a/file.h
+++ b/file.h
@@ -1,7 +1,14 @@
 #ifndef FIO_FILE_H
 #define FIO_FILE_H
 
+#include <string.h>
+#include "compiler/compiler.h"
 #include "io_ddir.h"
+#include "flist.h"
+#include "lib/zipf.h"
+#include "lib/axmap.h"
+#include "lib/lfsr.h"
+#include "lib/gauss.h"
 
 /*
  * The type of object we are working on
@@ -21,6 +28,8 @@ enum fio_file_flags {
 	FIO_FILE_size_known	= 1 << 4,	/* size has been set */
 	FIO_FILE_hashed		= 1 << 5,	/* file is on hash */
 	FIO_FILE_partial_mmap	= 1 << 6,	/* can't do full mmap */
+	FIO_FILE_axmap		= 1 << 7,	/* uses axmap */
+	FIO_FILE_lfsr		= 1 << 8,	/* lfsr is used */
 };
 
 enum file_lock_mode {
@@ -39,6 +48,16 @@ enum {
 	FIO_FSERVICE_SEQ	= 3,
 };
 
+/*
+ * No pre-allocation when laying down files, or call posix_fallocate(), or
+ * call fallocate() with FALLOC_FL_KEEP_SIZE set.
+ */
+enum fio_fallocate_mode {
+	FIO_FALLOCATE_NONE	= 1,
+	FIO_FALLOCATE_POSIX	= 2,
+	FIO_FALLOCATE_KEEP_SIZE	= 3,
+};
+
 /*
  * Each thread_data structure has a number of files associated with it,
  * this structure holds state information for a single file.
@@ -47,47 +66,64 @@ 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;
-	};
+	int fd;
+	int shadow_fd;
+#ifdef WIN32
+	HANDLE hFile;
+	HANDLE ioCP;
+#endif
 
 	/*
 	 * filename and possible memory mapping
 	 */
-	char *file_name;
 	unsigned int major, minor;
-
-	void *mmap_ptr;
-	size_t mmap_sz;
-	off_t mmap_off;
+	int fileno;
+	char *file_name;
 
 	/*
 	 * 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;
+	uint64_t real_file_size;
+	uint64_t file_offset;
+	uint64_t io_size;
+
+	/*
+	 * Track last end and last start of IO for a given data direction
+	 */
+	uint64_t last_pos[DDIR_RWDIR_CNT];
+	uint64_t last_start[DDIR_RWDIR_CNT];
+
+	uint64_t first_write;
+	uint64_t last_write;
 
-	unsigned long long last_pos;
+	/*
+	 * For use by the io engine
+	 */
+	uint64_t engine_data;
 
 	/*
 	 * 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;
+	union {
+		struct fio_mutex *lock;
+		struct fio_rwlock *rwlock;
+	};
+
+	/*
+	 * block map or LFSR for random io
+	 */
+	union {
+		struct axmap *io_axmap;
+		struct fio_lfsr lfsr;
+	};
 
 	/*
-	 * block map for random io
+	 * Used for zipf random distribution
 	 */
-	unsigned int *file_map;
-	unsigned int num_maps;
-	unsigned int last_free_lookup;
+	union {
+		struct zipf_state zipf;
+		struct gauss_state gauss;
+	};
 
 	int references;
 	enum fio_file_flags flags;
@@ -95,14 +131,23 @@ struct fio_file {
 	struct disk_util *du;
 };
 
+#define FILE_ENG_DATA(f)	((void *) (uintptr_t) (f)->engine_data)
+#define FILE_SET_ENG_DATA(f, data)	\
+	((f)->engine_data = (uintptr_t) (data))
+
+struct file_name {
+	struct flist_head list;
+	char *filename;
+};
+
 #define FILE_FLAG_FNS(name)						\
 static inline void fio_file_set_##name(struct fio_file *f)		\
 {									\
-	(f)->flags |= FIO_FILE_##name;					\
+	(f)->flags = (enum fio_file_flags) ((f)->flags | FIO_FILE_##name);	\
 }									\
 static inline void fio_file_clear_##name(struct fio_file *f)		\
 {									\
-	(f)->flags &= ~FIO_FILE_##name;					\
+	(f)->flags = (enum fio_file_flags) ((f)->flags & ~FIO_FILE_##name);	\
 }									\
 static inline int fio_file_##name(struct fio_file *f)			\
 {									\
@@ -116,6 +161,8 @@ FILE_FLAG_FNS(done);
 FILE_FLAG_FNS(size_known);
 FILE_FLAG_FNS(hashed);
 FILE_FLAG_FNS(partial_mmap);
+FILE_FLAG_FNS(axmap);
+FILE_FLAG_FNS(lfsr);
 #undef FILE_FLAG_FNS
 
 /*
@@ -124,13 +171,16 @@ FILE_FLAG_FNS(partial_mmap);
 struct thread_data;
 extern void close_files(struct thread_data *);
 extern void close_and_free_files(struct thread_data *);
+extern uint64_t get_start_offset(struct thread_data *, struct fio_file *);
 extern int __must_check setup_files(struct thread_data *);
 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
+extern int __must_check file_lookup_open(struct fio_file *f, int flags);
 extern int __must_check pre_read_files(struct thread_data *);
-extern int add_file(struct thread_data *, const char *);
+extern int add_file(struct thread_data *, const char *, int, int);
+extern int add_file_exclusive(struct thread_data *, const char *);
 extern void get_file(struct fio_file *);
 extern int __must_check put_file(struct thread_data *, struct fio_file *);
 extern void put_file_log(struct thread_data *, struct fio_file *);
@@ -142,13 +192,8 @@ extern int init_random_map(struct thread_data *);
 extern void dup_files(struct thread_data *, struct thread_data *);
 extern int get_fileno(struct thread_data *, const char *);
 extern void free_release_files(struct thread_data *);
-
-static inline void fio_file_reset(struct fio_file *f)
-{
-	f->last_free_lookup = 0;
-	f->last_pos = f->file_offset;
-	if (f->file_map)
-		memset(f->file_map, 0, f->num_maps * sizeof(int));
-}
+extern void filesetup_mem_free(void);
+void fio_file_reset(struct thread_data *, struct fio_file *);
+int fio_files_done(struct thread_data *);
 
 #endif