X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=file.h;h=b3ff05148458e1a1d0d5a70e0c0fd874fa892b18;hp=89120072a18a217c7f15b820d0246e8aa1b94812;hb=fba76ee8650e1d3d3a897055f6ba3b88b8e437ce;hpb=4cd02b3f7f4eda0ec263f04422ab6424b7693605

diff --git a/file.h b/file.h
index 89120072..b3ff0514 100644
--- a/file.h
+++ b/file.h
@@ -1,7 +1,10 @@
 #ifndef FIO_FILE_H
 #define FIO_FILE_H
 
+#include <string.h>
+#include "compiler/compiler.h"
 #include "io_ddir.h"
+#include "flist.h"
 
 /*
  * The type of object we are working on
@@ -20,6 +23,7 @@ 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 +32,26 @@ 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.
@@ -36,13 +60,12 @@ 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;
-	};
+	void *file_data;
+	int fd;
+#ifdef __CYGWIN__
+	HANDLE hFile;
+	HANDLE ioCP;
+#endif
 
 	/*
 	 * filename and possible memory mapping
@@ -62,6 +85,15 @@ 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
+	 */
+	unsigned long long file_pos;
 
 	/*
 	 * if io is protected by a semaphore, this is set
@@ -74,9 +106,10 @@ struct fio_file {
 	/*
 	 * block map for random io
 	 */
-	unsigned int *file_map;
+	unsigned long *file_map;
 	unsigned int num_maps;
 	unsigned int last_free_lookup;
+	unsigned int failed_rands;
 
 	int references;
 	enum fio_file_flags flags;
@@ -104,6 +137,7 @@ 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
 
 /*
@@ -119,8 +153,10 @@ 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 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 *);
@@ -130,4 +166,15 @@ 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->failed_rands = 0;
+	f->last_pos = f->file_offset;
+	f->last_start = -1ULL;
+	f->file_pos = -1ULL;
+	if (f->file_map)
+		memset(f->file_map, 0, f->num_maps * sizeof(unsigned long));
+}
+
 #endif