[fio.git] / fio.h

#ifndef FIO_H
#define FIO_H

#include <sched.h>
#include <limits.h>
#include <pthread.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>

struct thread_data;

#include "compiler/compiler.h"
#include "thread_options.h"
#include "flist.h"
#include "fifo.h"
#include "rbtree.h"
#include "arch/arch.h"
#include "os/os.h"
#include "mutex.h"
#include "log.h"
#include "debug.h"
#include "file.h"
#include "io_ddir.h"
#include "ioengine.h"
#include "iolog.h"
#include "helpers.h"
#include "options.h"
#include "profile.h"
#include "time.h"
#include "gettime.h"
#include "lib/getopt.h"
#include "lib/rand.h"
#include "client.h"
#include "server.h"
#include "stat.h"
#include "flow.h"

#ifdef FIO_HAVE_GUASI
#include <guasi.h>
#endif

#ifdef FIO_HAVE_SOLARISAIO
#include <sys/asynch.h>
#endif

/*
 * offset generator types
 */
enum {
	RW_SEQ_SEQ	= 0,
	RW_SEQ_IDENT,
};

/*
 * This describes a single thread/process executing a fio job.
 */
struct thread_data {
	struct thread_options o;
	void *eo;
	char verror[FIO_VERROR_SIZE];
	pthread_t thread;
	int thread_number;
	int groupid;
	struct thread_stat ts;

	struct io_log *slat_log;
	struct io_log *clat_log;
	struct io_log *lat_log;
	struct io_log *bw_log;
	struct io_log *iops_log;

	uint64_t stat_io_bytes[2];
	struct timeval bw_sample_time;

	uint64_t stat_io_blocks[2];
	struct timeval iops_sample_time;

	struct rusage ru_start;
	struct rusage ru_end;

	struct fio_file **files;
	unsigned int files_size;
	unsigned int files_index;
	unsigned int nr_open_files;
	unsigned int nr_done_files;
	unsigned int nr_normal_files;
	union {
		unsigned int next_file;
		os_random_state_t next_file_state;
		struct frand_state __next_file_state;
	};
	int error;
	int done;
	pid_t pid;
	char *orig_buffer;
	size_t orig_buffer_size;
	volatile int terminate;
	volatile int runstate;
	unsigned int ioprio;
	unsigned int ioprio_set;
	unsigned int last_was_sync;
	enum fio_ddir last_ddir;

	char *mmapfile;
	int mmapfd;

	void *iolog_buf;
	FILE *iolog_f;

	char *sysfs_root;

	unsigned long rand_seeds[8];

	union {
		os_random_state_t bsrange_state;
		struct frand_state __bsrange_state;
	};
	union {
		os_random_state_t verify_state;
		struct frand_state __verify_state;
	};
	union {
		os_random_state_t trim_state;
		struct frand_state __trim_state;
	};

	struct frand_state buf_state;

	unsigned int verify_batch;
	unsigned int trim_batch;

	int shm_id;

	/*
	 * IO engine hooks, contains everything needed to submit an io_u
	 * to any of the available IO engines.
	 */
	struct ioengine_ops *io_ops;

	/*
	 * Queue depth of io_u's that fio MIGHT do
	 */
	unsigned int cur_depth;

	/*
	 * io_u's about to be committed
	 */
	unsigned int io_u_queued;

	/*
	 * io_u's submitted but not completed yet
	 */
	unsigned int io_u_in_flight;

	/*
	 * List of free and busy io_u's
	 */
	struct flist_head io_u_freelist;
	struct flist_head io_u_busylist;
	struct flist_head io_u_requeues;
	pthread_mutex_t io_u_lock;
	pthread_cond_t free_cond;

	/*
	 * async verify offload
	 */
	struct flist_head verify_list;
	pthread_t *verify_threads;
	unsigned int nr_verify_threads;
	pthread_cond_t verify_cond;
	int verify_thread_exit;

	/*
	 * Rate state
	 */
	unsigned long long rate_bps[2];
	long rate_pending_usleep[2];
	unsigned long rate_bytes[2];
	unsigned long rate_blocks[2];
	struct timeval lastrate[2];

	unsigned long long total_io_size;
	unsigned long long fill_device_size;

	unsigned long io_issues[2];
	unsigned long long io_blocks[2];
	unsigned long long this_io_blocks[2];
	unsigned long long io_bytes[2];
	unsigned long long io_skip_bytes;
	unsigned long long this_io_bytes[2];
	unsigned long long zone_bytes;
	struct fio_mutex *mutex;

	/*
	 * State for random io, a bitmap of blocks done vs not done
	 */
	union {
		os_random_state_t random_state;
		struct frand_state __random_state;
	};

	struct timeval start;	/* start of this loop */
	struct timeval epoch;	/* time job was started */
	struct timeval last_issue;
	struct timeval tv_cache;
	unsigned int tv_cache_nr;
	unsigned int tv_cache_mask;
	unsigned int ramp_time_over;

	/*
	 * read/write mixed workload state
	 */
	union {
		os_random_state_t rwmix_state;
		struct frand_state __rwmix_state;
	};
	unsigned long rwmix_issues;
	enum fio_ddir rwmix_ddir;
	unsigned int ddir_seq_nr;

	/*
	 * IO history logs for verification. We use a tree for sorting,
	 * if we are overwriting. Otherwise just use a fifo.
	 */
	struct rb_root io_hist_tree;
	struct flist_head io_hist_list;
	unsigned long io_hist_len;

	/*
	 * For IO replaying
	 */
	struct flist_head io_log_list;

	/*
	 * For tracking/handling discards
	 */
	struct flist_head trim_list;
	unsigned long trim_entries;

	/*
	 * for fileservice, how often to switch to a new file
	 */
	unsigned int file_service_nr;
	unsigned int file_service_left;
	struct fio_file *file_service_file;

	unsigned int sync_file_range_nr;

	/*
	 * For generating file sizes
	 */
	union {
		os_random_state_t file_size_state;
		struct frand_state __file_size_state;
	};

	/*
	 * Error counts
	 */
	unsigned int total_err_count;
	int first_error;

	struct fio_flow *flow;

	/*
	 * Can be overloaded by profiles
	 */
	struct prof_io_ops prof_io_ops;
	void *prof_data;
};

/*
 * when should interactive ETA output be generated
 */
enum {
	FIO_ETA_AUTO,
	FIO_ETA_ALWAYS,
	FIO_ETA_NEVER,
};

#define __td_verror(td, err, msg, func)					\
	do {								\
		if ((td)->error)					\
			break;						\
		int e = (err);						\
		(td)->error = e;					\
		if (!(td)->first_error)					\
			snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg));		\
	} while (0)


#define td_clear_error(td)		\
	(td)->error = 0;
#define td_verror(td, err, func)	\
	__td_verror((td), (err), strerror((err)), (func))
#define td_vmsg(td, err, msg, func)	\
	__td_verror((td), (err), (msg), (func))

#define __fio_stringify_1(x)	#x
#define __fio_stringify(x)	__fio_stringify_1(x)

extern int exitall_on_terminate;
extern unsigned int thread_number;
extern unsigned int nr_process, nr_thread;
extern int shm_id;
extern int groupid;
extern int terse_output;
extern int temp_stall_ts;
extern unsigned long long mlock_size;
extern unsigned long page_mask, page_size;
extern int read_only;
extern int eta_print;
extern unsigned long done_secs;
extern char *job_section;
extern int fio_gtod_offload;
extern int fio_gtod_cpu;
extern enum fio_cs fio_clock_source;
extern int warnings_fatal;
extern int terse_version;
extern int is_backend;
extern int nr_clients;
extern int log_syslog;
extern const char fio_version_string[];
extern const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN];

extern struct thread_data *threads;

static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
{
	assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
}

#define BLOCKS_PER_MAP		(8 * sizeof(unsigned long))
#define TO_MAP_BLOCK(f, b)	(b)
#define RAND_MAP_IDX(f, b)	(TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
#define RAND_MAP_BIT(f, b)	(TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))

#define REAL_MAX_JOBS		2048

#define td_non_fatal_error(e)	((e) == EIO || (e) == EILSEQ)

static inline enum error_type td_error_type(enum fio_ddir ddir, int err)
{
	if (err == EILSEQ)
		return ERROR_TYPE_VERIFY;
	if (ddir == DDIR_READ)
		return ERROR_TYPE_READ;
	return ERROR_TYPE_WRITE;
}

static inline void update_error_count(struct thread_data *td, int err)
{
	td->total_err_count++;
	if (td->total_err_count == 1)
		td->first_error = err;
}

static inline int should_fsync(struct thread_data *td)
{
	if (td->last_was_sync)
		return 0;
	if (td->o.odirect)
		return 0;
	if (td_write(td) || td_rw(td) || td->o.override_sync)
		return 1;

	return 0;
}

/*
 * Init/option functions
 */
extern int __must_check fio_init_options(void);
extern int __must_check parse_options(int, char **);
extern int parse_jobs_ini(char *, int, int);
extern int parse_cmd_line(int, char **);
extern int fio_backend(void);
extern void reset_fio_state(void);
extern void clear_io_state(struct thread_data *);
extern int fio_options_parse(struct thread_data *, char **, int);
extern void fio_keywords_init(void);
extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
extern void fio_fill_default_options(struct thread_data *);
extern int fio_show_option_help(const char *);
extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
extern void fio_options_dup_and_init(struct option *);
extern void fio_options_mem_dupe(struct thread_data *);
extern void options_mem_dupe(void *data, struct fio_option *options);
extern void td_fill_rand_seeds(struct thread_data *);
extern void add_job_opts(const char **);
extern char *num2str(unsigned long, int, int, int);
extern int ioengine_load(struct thread_data *);

extern unsigned long page_mask;
extern unsigned long page_size;
extern int initialize_fio(char *envp[]);

#define FIO_GETOPT_JOB		0x89000000
#define FIO_GETOPT_IOENGINE	0x98000000
#define FIO_NR_OPTIONS		(FIO_MAX_OPTS + 128)

/*
 * ETA/status stuff
 */
extern void print_thread_status(void);
extern void print_status_init(int);

/*
 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
 * will never back again. It may cycle between running/verififying/fsyncing.
 * Once the thread reaches TD_EXITED, it is just waiting for the core to
 * reap it.
 */
enum {
	TD_NOT_CREATED = 0,
	TD_CREATED,
	TD_INITIALIZED,
	TD_RAMP,
	TD_RUNNING,
	TD_PRE_READING,
	TD_VERIFYING,
	TD_FSYNCING,
	TD_EXITED,
	TD_REAPED,
};

extern void td_set_runstate(struct thread_data *, int);
#define TERMINATE_ALL		(-1)
extern void fio_terminate_threads(int);

/*
 * Memory helpers
 */
extern int __must_check fio_pin_memory(void);
extern void fio_unpin_memory(void);
extern int __must_check allocate_io_mem(struct thread_data *);
extern void free_io_mem(struct thread_data *);

/*
 * Reset stats after ramp time completes
 */
extern void reset_all_stats(struct thread_data *);

/*
 * blktrace support
 */
#ifdef FIO_HAVE_BLKTRACE
extern int is_blktrace(const char *);
extern int load_blktrace(struct thread_data *, const char *);
#endif

/*
 * Mark unused variables passed to ops functions as unused, to silence gcc
 */
#define fio_unused	__attribute((__unused__))
#define fio_init	__attribute__((constructor))
#define fio_exit	__attribute__((destructor))

#define for_each_td(td, i)	\
	for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
#define for_each_file(td, f, i)	\
	if ((td)->files_index)						\
		for ((i) = 0, (f) = (td)->files[0];			\
	    	 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
		 (i)++)

#define fio_assert(td, cond)	do {	\
	if (!(cond)) {			\
		int *__foo = NULL;	\
		fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond);	\
		td_set_runstate((td), TD_EXITED);	\
		(td)->error = EFAULT;		\
		*__foo = 0;			\
	}	\
} while (0)

static inline int fio_fill_issue_time(struct thread_data *td)
{
	if (td->o.read_iolog_file ||
	    !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
		return 1;

	return 0;
}

static inline int __should_check_rate(struct thread_data *td,
				      enum fio_ddir ddir)
{
	struct thread_options *o = &td->o;

	/*
	 * If some rate setting was given, we need to check it
	 */
	if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
	    o->rate_iops_min[ddir])
		return 1;

	return 0;
}

static inline int should_check_rate(struct thread_data *td,
				    unsigned long *bytes_done)
{
	int ret = 0;

	if (bytes_done[0])
		ret |= __should_check_rate(td, 0);
	if (bytes_done[1])
		ret |= __should_check_rate(td, 1);

	return ret;
}

static inline int is_power_of_2(unsigned int val)
{
	return (val != 0 && ((val & (val - 1)) == 0));
}

/*
 * We currently only need to do locking if we have verifier threads
 * accessing our internal structures too
 */
static inline void td_io_u_lock(struct thread_data *td)
{
	if (td->o.verify_async)
		pthread_mutex_lock(&td->io_u_lock);
}

static inline void td_io_u_unlock(struct thread_data *td)
{
	if (td->o.verify_async)
		pthread_mutex_unlock(&td->io_u_lock);
}

static inline void td_io_u_free_notify(struct thread_data *td)
{
	if (td->o.verify_async)
		pthread_cond_signal(&td->free_cond);
}

extern const char *fio_get_arch_string(int);
extern const char *fio_get_os_string(int);

#endif
Commit	Line	Data
	1	#ifndef FIO_H
	2	#define FIO_H
	3
	4	#include <sched.h>
	5	#include <limits.h>
	6	#include <pthread.h>
	7	#include <sys/time.h>
	8	#include <sys/resource.h>
	9	#include <errno.h>
	10	#include <stdlib.h>
	11	#include <stdio.h>
	12	#include <unistd.h>
	13	#include <string.h>
	14	#include <inttypes.h>
	15	#include <assert.h>
	16
	17	struct thread_data;
	18
	19	#include "compiler/compiler.h"
	20	#include "thread_options.h"
	21	#include "flist.h"
	22	#include "fifo.h"
	23	#include "rbtree.h"
	24	#include "arch/arch.h"
	25	#include "os/os.h"
	26	#include "mutex.h"
	27	#include "log.h"
	28	#include "debug.h"
	29	#include "file.h"
	30	#include "io_ddir.h"
	31	#include "ioengine.h"
	32	#include "iolog.h"
	33	#include "helpers.h"
	34	#include "options.h"
	35	#include "profile.h"
	36	#include "time.h"
	37	#include "gettime.h"
	38	#include "lib/getopt.h"
	39	#include "lib/rand.h"
	40	#include "client.h"
	41	#include "server.h"
	42	#include "stat.h"
	43	#include "flow.h"
	44
	45	#ifdef FIO_HAVE_GUASI
	46	#include <guasi.h>
	47	#endif
	48
	49	#ifdef FIO_HAVE_SOLARISAIO
	50	#include <sys/asynch.h>
	51	#endif
	52
	53	/*
	54	* offset generator types
	55	*/
	56	enum {
	57	RW_SEQ_SEQ = 0,
	58	RW_SEQ_IDENT,
	59	};
	60
	61	/*
	62	* This describes a single thread/process executing a fio job.
	63	*/
	64	struct thread_data {
	65	struct thread_options o;
	66	void *eo;
	67	char verror[FIO_VERROR_SIZE];
	68	pthread_t thread;
	69	int thread_number;
	70	int groupid;
	71	struct thread_stat ts;
	72
	73	struct io_log *slat_log;
	74	struct io_log *clat_log;
	75	struct io_log *lat_log;
	76	struct io_log *bw_log;
	77	struct io_log *iops_log;
	78
	79	uint64_t stat_io_bytes[2];
	80	struct timeval bw_sample_time;
	81
	82	uint64_t stat_io_blocks[2];
	83	struct timeval iops_sample_time;
	84
	85	struct rusage ru_start;
	86	struct rusage ru_end;
	87
	88	struct fio_file **files;
	89	unsigned int files_size;
	90	unsigned int files_index;
	91	unsigned int nr_open_files;
	92	unsigned int nr_done_files;
	93	unsigned int nr_normal_files;
	94	union {
	95	unsigned int next_file;
	96	os_random_state_t next_file_state;
	97	struct frand_state __next_file_state;
	98	};
	99	int error;
	100	int done;
	101	pid_t pid;
	102	char *orig_buffer;
	103	size_t orig_buffer_size;
	104	volatile int terminate;
	105	volatile int runstate;
	106	unsigned int ioprio;
	107	unsigned int ioprio_set;
	108	unsigned int last_was_sync;
	109	enum fio_ddir last_ddir;
	110
	111	char *mmapfile;
	112	int mmapfd;
	113
	114	void *iolog_buf;
	115	FILE *iolog_f;
	116
	117	char *sysfs_root;
	118
	119	unsigned long rand_seeds[8];
	120
	121	union {
	122	os_random_state_t bsrange_state;
	123	struct frand_state __bsrange_state;
	124	};
	125	union {
	126	os_random_state_t verify_state;
	127	struct frand_state __verify_state;
	128	};
	129	union {
	130	os_random_state_t trim_state;
	131	struct frand_state __trim_state;
	132	};
	133
	134	struct frand_state buf_state;
	135
	136	unsigned int verify_batch;
	137	unsigned int trim_batch;
	138
	139	int shm_id;
	140
	141	/*
	142	* IO engine hooks, contains everything needed to submit an io_u
	143	* to any of the available IO engines.
	144	*/
	145	struct ioengine_ops *io_ops;
	146
	147	/*
	148	* Queue depth of io_u's that fio MIGHT do
	149	*/
	150	unsigned int cur_depth;
	151
	152	/*
	153	* io_u's about to be committed
	154	*/
	155	unsigned int io_u_queued;
	156
	157	/*
	158	* io_u's submitted but not completed yet
	159	*/
	160	unsigned int io_u_in_flight;
	161
	162	/*
	163	* List of free and busy io_u's
	164	*/
	165	struct flist_head io_u_freelist;
	166	struct flist_head io_u_busylist;
	167	struct flist_head io_u_requeues;
	168	pthread_mutex_t io_u_lock;
	169	pthread_cond_t free_cond;
	170
	171	/*
	172	* async verify offload
	173	*/
	174	struct flist_head verify_list;
	175	pthread_t *verify_threads;
	176	unsigned int nr_verify_threads;
	177	pthread_cond_t verify_cond;
	178	int verify_thread_exit;
	179
	180	/*
	181	* Rate state
	182	*/
	183	unsigned long long rate_bps[2];
	184	long rate_pending_usleep[2];
	185	unsigned long rate_bytes[2];
	186	unsigned long rate_blocks[2];
	187	struct timeval lastrate[2];
	188
	189	unsigned long long total_io_size;
	190	unsigned long long fill_device_size;
	191
	192	unsigned long io_issues[2];
	193	unsigned long long io_blocks[2];
	194	unsigned long long this_io_blocks[2];
	195	unsigned long long io_bytes[2];
	196	unsigned long long io_skip_bytes;
	197	unsigned long long this_io_bytes[2];
	198	unsigned long long zone_bytes;
	199	struct fio_mutex *mutex;
	200
	201	/*
	202	* State for random io, a bitmap of blocks done vs not done
	203	*/
	204	union {
	205	os_random_state_t random_state;
	206	struct frand_state __random_state;
	207	};
	208
	209	struct timeval start; /* start of this loop */
	210	struct timeval epoch; /* time job was started */
	211	struct timeval last_issue;
	212	struct timeval tv_cache;
	213	unsigned int tv_cache_nr;
	214	unsigned int tv_cache_mask;
	215	unsigned int ramp_time_over;
	216
	217	/*
	218	* read/write mixed workload state
	219	*/
	220	union {
	221	os_random_state_t rwmix_state;
	222	struct frand_state __rwmix_state;
	223	};
	224	unsigned long rwmix_issues;
	225	enum fio_ddir rwmix_ddir;
	226	unsigned int ddir_seq_nr;
	227
	228	/*
	229	* IO history logs for verification. We use a tree for sorting,
	230	* if we are overwriting. Otherwise just use a fifo.
	231	*/
	232	struct rb_root io_hist_tree;
	233	struct flist_head io_hist_list;
	234	unsigned long io_hist_len;
	235
	236	/*
	237	* For IO replaying
	238	*/
	239	struct flist_head io_log_list;
	240
	241	/*
	242	* For tracking/handling discards
	243	*/
	244	struct flist_head trim_list;
	245	unsigned long trim_entries;
	246
	247	/*
	248	* for fileservice, how often to switch to a new file
	249	*/
	250	unsigned int file_service_nr;
	251	unsigned int file_service_left;
	252	struct fio_file *file_service_file;
	253
	254	unsigned int sync_file_range_nr;
	255
	256	/*
	257	* For generating file sizes
	258	*/
	259	union {
	260	os_random_state_t file_size_state;
	261	struct frand_state __file_size_state;
	262	};
	263
	264	/*
	265	* Error counts
	266	*/
	267	unsigned int total_err_count;
	268	int first_error;
	269
	270	struct fio_flow *flow;
	271
	272	/*
	273	* Can be overloaded by profiles
	274	*/
	275	struct prof_io_ops prof_io_ops;
	276	void *prof_data;
	277	};
	278
	279	/*
	280	* when should interactive ETA output be generated
	281	*/
	282	enum {
	283	FIO_ETA_AUTO,
	284	FIO_ETA_ALWAYS,
	285	FIO_ETA_NEVER,
	286	};
	287
	288	#define __td_verror(td, err, msg, func) \
	289	do { \
	290	if ((td)->error) \
	291	break; \
	292	int e = (err); \
	293	(td)->error = e; \
	294	if (!(td)->first_error) \
	295	snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
	296	} while (0)
	297
	298
	299	#define td_clear_error(td) \
	300	(td)->error = 0;
	301	#define td_verror(td, err, func) \
	302	__td_verror((td), (err), strerror((err)), (func))
	303	#define td_vmsg(td, err, msg, func) \
	304	__td_verror((td), (err), (msg), (func))
	305
	306	#define __fio_stringify_1(x) #x
	307	#define __fio_stringify(x) __fio_stringify_1(x)
	308
	309	extern int exitall_on_terminate;
	310	extern unsigned int thread_number;
	311	extern unsigned int nr_process, nr_thread;
	312	extern int shm_id;
	313	extern int groupid;
	314	extern int terse_output;
	315	extern int temp_stall_ts;
	316	extern unsigned long long mlock_size;
	317	extern unsigned long page_mask, page_size;
	318	extern int read_only;
	319	extern int eta_print;
	320	extern unsigned long done_secs;
	321	extern char *job_section;
	322	extern int fio_gtod_offload;
	323	extern int fio_gtod_cpu;
	324	extern enum fio_cs fio_clock_source;
	325	extern int warnings_fatal;
	326	extern int terse_version;
	327	extern int is_backend;
	328	extern int nr_clients;
	329	extern int log_syslog;
	330	extern const char fio_version_string[];
	331	extern const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN];
	332
	333	extern struct thread_data *threads;
	334
	335	static inline void fio_ro_check(struct thread_data td, struct io_u io_u)
	336	{
	337	assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
	338	}
	339
	340	#define BLOCKS_PER_MAP (8 * sizeof(unsigned long))
	341	#define TO_MAP_BLOCK(f, b) (b)
	342	#define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
	343	#define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
	344
	345	#define REAL_MAX_JOBS 2048
	346
	347	#define td_non_fatal_error(e) ((e) == EIO \|\| (e) == EILSEQ)
	348
	349	static inline enum error_type td_error_type(enum fio_ddir ddir, int err)
	350	{
	351	if (err == EILSEQ)
	352	return ERROR_TYPE_VERIFY;
	353	if (ddir == DDIR_READ)
	354	return ERROR_TYPE_READ;
	355	return ERROR_TYPE_WRITE;
	356	}
	357
	358	static inline void update_error_count(struct thread_data *td, int err)
	359	{
	360	td->total_err_count++;
	361	if (td->total_err_count == 1)
	362	td->first_error = err;
	363	}
	364
	365	static inline int should_fsync(struct thread_data *td)
	366	{
	367	if (td->last_was_sync)
	368	return 0;
	369	if (td->o.odirect)
	370	return 0;
	371	if (td_write(td) \|\| td_rw(td) \|\| td->o.override_sync)
	372	return 1;
	373
	374	return 0;
	375	}
	376
	377	/*
	378	* Init/option functions
	379	*/
	380	extern int __must_check fio_init_options(void);
	381	extern int __must_check parse_options(int, char **);
	382	extern int parse_jobs_ini(char *, int, int);
	383	extern int parse_cmd_line(int, char **);
	384	extern int fio_backend(void);
	385	extern void reset_fio_state(void);
	386	extern void clear_io_state(struct thread_data *);
	387	extern int fio_options_parse(struct thread_data , char *, int);
	388	extern void fio_keywords_init(void);
	389	extern int fio_cmd_option_parse(struct thread_data , const char , char *);
	390	extern int fio_cmd_ioengine_option_parse(struct thread_data , const char , char *);
	391	extern void fio_fill_default_options(struct thread_data *);
	392	extern int fio_show_option_help(const char *);
	393	extern void fio_options_set_ioengine_opts(struct option long_options, struct thread_data td);
	394	extern void fio_options_dup_and_init(struct option *);
	395	extern void fio_options_mem_dupe(struct thread_data *);
	396	extern void options_mem_dupe(void data, struct fio_option options);
	397	extern void td_fill_rand_seeds(struct thread_data *);
	398	extern void add_job_opts(const char **);
	399	extern char *num2str(unsigned long, int, int, int);
	400	extern int ioengine_load(struct thread_data *);
	401
	402	extern unsigned long page_mask;
	403	extern unsigned long page_size;
	404	extern int initialize_fio(char *envp[]);
	405
	406	#define FIO_GETOPT_JOB 0x89000000
	407	#define FIO_GETOPT_IOENGINE 0x98000000
	408	#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
	409
	410	/*
	411	* ETA/status stuff
	412	*/
	413	extern void print_thread_status(void);
	414	extern void print_status_init(int);
	415
	416	/*
	417	* Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
	418	* will never back again. It may cycle between running/verififying/fsyncing.
	419	* Once the thread reaches TD_EXITED, it is just waiting for the core to
	420	* reap it.
	421	*/
	422	enum {
	423	TD_NOT_CREATED = 0,
	424	TD_CREATED,
	425	TD_INITIALIZED,
	426	TD_RAMP,
	427	TD_RUNNING,
	428	TD_PRE_READING,
	429	TD_VERIFYING,
	430	TD_FSYNCING,
	431	TD_EXITED,
	432	TD_REAPED,
	433	};
	434
	435	extern void td_set_runstate(struct thread_data *, int);
	436	#define TERMINATE_ALL (-1)
	437	extern void fio_terminate_threads(int);
	438
	439	/*
	440	* Memory helpers
	441	*/
	442	extern int __must_check fio_pin_memory(void);
	443	extern void fio_unpin_memory(void);
	444	extern int __must_check allocate_io_mem(struct thread_data *);
	445	extern void free_io_mem(struct thread_data *);
	446
	447	/*
	448	* Reset stats after ramp time completes
	449	*/
	450	extern void reset_all_stats(struct thread_data *);
	451
	452	/*
	453	* blktrace support
	454	*/
	455	#ifdef FIO_HAVE_BLKTRACE
	456	extern int is_blktrace(const char *);
	457	extern int load_blktrace(struct thread_data , const char );
	458	#endif
	459
	460	/*
	461	* Mark unused variables passed to ops functions as unused, to silence gcc
	462	*/
	463	#define fio_unused __attribute((__unused__))
	464	#define fio_init __attribute__((constructor))
	465	#define fio_exit __attribute__((destructor))
	466
	467	#define for_each_td(td, i) \
	468	for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
	469	#define for_each_file(td, f, i) \
	470	if ((td)->files_index) \
	471	for ((i) = 0, (f) = (td)->files[0]; \
	472	(i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
	473	(i)++)
	474
	475	#define fio_assert(td, cond) do { \
	476	if (!(cond)) { \
	477	int *__foo = NULL; \
	478	fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
	479	td_set_runstate((td), TD_EXITED); \
	480	(td)->error = EFAULT; \
	481	*__foo = 0; \
	482	} \
	483	} while (0)
	484
	485	static inline int fio_fill_issue_time(struct thread_data *td)
	486	{
	487	if (td->o.read_iolog_file \|\|
	488	!td->o.disable_clat \|\| !td->o.disable_slat \|\| !td->o.disable_bw)
	489	return 1;
	490
	491	return 0;
	492	}
	493
	494	static inline int __should_check_rate(struct thread_data *td,
	495	enum fio_ddir ddir)
	496	{
	497	struct thread_options *o = &td->o;
	498
	499	/*
	500	* If some rate setting was given, we need to check it
	501	*/
	502	if (o->rate[ddir] \|\| o->ratemin[ddir] \|\| o->rate_iops[ddir] \|\|
	503	o->rate_iops_min[ddir])
	504	return 1;
	505
	506	return 0;
	507	}
	508
	509	static inline int should_check_rate(struct thread_data *td,
	510	unsigned long *bytes_done)
	511	{
	512	int ret = 0;
	513
	514	if (bytes_done[0])
	515	ret \|= __should_check_rate(td, 0);
	516	if (bytes_done[1])
	517	ret \|= __should_check_rate(td, 1);
	518
	519	return ret;
	520	}
	521
	522	static inline int is_power_of_2(unsigned int val)
	523	{
	524	return (val != 0 && ((val & (val - 1)) == 0));
	525	}
	526
	527	/*
	528	* We currently only need to do locking if we have verifier threads
	529	* accessing our internal structures too
	530	*/
	531	static inline void td_io_u_lock(struct thread_data *td)
	532	{
	533	if (td->o.verify_async)
	534	pthread_mutex_lock(&td->io_u_lock);
	535	}
	536
	537	static inline void td_io_u_unlock(struct thread_data *td)
	538	{
	539	if (td->o.verify_async)
	540	pthread_mutex_unlock(&td->io_u_lock);
	541	}
	542
	543	static inline void td_io_u_free_notify(struct thread_data *td)
	544	{
	545	if (td->o.verify_async)
	546	pthread_cond_signal(&td->free_cond);
	547	}
	548
	549	extern const char *fio_get_arch_string(int);
	550	extern const char *fio_get_os_string(int);
	551
	552	#endif