X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=file.h;h=e57bebcffff605c4c5996b88287cb40ff9c9254d;hp=f07216b9eced067ad0cc014716d032ac5211da53;hb=b0106419dbbb0398c196bbb0897e24315908d634;hpb=d6aed795f2e3e403828abf60874dd2d6e8342a1b

diff --git a/file.h b/file.h
index f07216b9..e57bebcf 100644
--- a/file.h
+++ b/file.h
@@ -1,7 +1,13 @@
 #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"
 
 /*
  * The type of object we are working on
@@ -20,6 +26,7 @@ enum fio_file_flags {
 	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 */
+	FIO_FILE_partial_mmap	= 1 << 6,	/* can't do full mmap */
 };
 
 enum file_lock_mode {
@@ -28,6 +35,26 @@ enum file_lock_mode {
 	FILE_LOCK_READWRITE,
 };
 
+/*
+ * roundrobin available files, or choose one at random, or do each one
+ * serially.
+ */
+enum {
+	FIO_FSERVICE_RANDOM	= 1,
+	FIO_FSERVICE_RR		= 2,
+	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.
@@ -36,19 +63,19 @@ 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;
+	int fileno;
 
 	void *mmap_ptr;
 	size_t mmap_sz;
@@ -62,6 +89,15 @@ struct fio_file {
 	unsigned long long io_size;
 
 	unsigned long long last_pos;
+	unsigned long long last_start;
+
+	unsigned long long first_write;
+	unsigned long long last_write;
+
+	/*
+	 * For use by the io engine
+	 */
+	uint64_t engine_data;
 
 	/*
 	 * if io is protected by a semaphore, this is set
@@ -74,9 +110,14 @@ struct fio_file {
 	/*
 	 * block map for random io
 	 */
-	unsigned int *file_map;
-	unsigned int num_maps;
-	unsigned int last_free_lookup;
+	struct axmap *io_axmap;
+
+	struct fio_lfsr lfsr;
+
+	/*
+	 * Used for zipf random distribution
+	 */
+	struct zipf_state zipf;
 
 	int references;
 	enum fio_file_flags flags;
@@ -104,6 +145,43 @@ FILE_FLAG_FNS(extend);
 FILE_FLAG_FNS(done);
 FILE_FLAG_FNS(size_known);
 FILE_FLAG_FNS(hashed);
+FILE_FLAG_FNS(partial_mmap);
 #undef FILE_FLAG_FNS
 
+/*
+ * File setup/shutdown
+ */
+struct thread_data;
+extern void close_files(struct thread_data *);
+extern void close_and_free_files(struct thread_data *);
+extern unsigned long long get_start_offset(struct thread_data *);
+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_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 *);
+extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
+extern void unlock_file(struct thread_data *, struct fio_file *);
+extern void unlock_file_all(struct thread_data *, struct fio_file *);
+extern int add_dir_files(struct thread_data *, const char *);
+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_pos = f->file_offset;
+	f->last_start = -1ULL;
+	if (f->io_axmap)
+		axmap_reset(f->io_axmap);
+}
+
 #endif