[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;
	unsigned int thread_number;
	unsigned int groupid;
	struct thread_stat ts;

	int client_type;

	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, int);
extern int parse_cmd_line(int, char **, int);
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 **, int);
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);
extern char *fio_uint_to_kmg(unsigned int val);

/*
 * 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	unsigned int thread_number;
	70	unsigned int groupid;
	71	struct thread_stat ts;
	72
	73	int client_type;
	74
	75	struct io_log *slat_log;
	76	struct io_log *clat_log;
	77	struct io_log *lat_log;
	78	struct io_log *bw_log;
	79	struct io_log *iops_log;
	80
	81	uint64_t stat_io_bytes[2];
	82	struct timeval bw_sample_time;
	83
	84	uint64_t stat_io_blocks[2];
	85	struct timeval iops_sample_time;
	86
	87	struct rusage ru_start;
	88	struct rusage ru_end;
	89
	90	struct fio_file **files;
	91	unsigned int files_size;
	92	unsigned int files_index;
	93	unsigned int nr_open_files;
	94	unsigned int nr_done_files;
	95	unsigned int nr_normal_files;
	96	union {
	97	unsigned int next_file;
	98	os_random_state_t next_file_state;
	99	struct frand_state __next_file_state;
	100	};
	101	int error;
	102	int done;
	103	pid_t pid;
	104	char *orig_buffer;
	105	size_t orig_buffer_size;
	106	volatile int terminate;
	107	volatile int runstate;
	108	unsigned int ioprio;
	109	unsigned int ioprio_set;
	110	unsigned int last_was_sync;
	111	enum fio_ddir last_ddir;
	112
	113	char *mmapfile;
	114	int mmapfd;
	115
	116	void *iolog_buf;
	117	FILE *iolog_f;
	118
	119	char *sysfs_root;
	120
	121	unsigned long rand_seeds[8];
	122
	123	union {
	124	os_random_state_t bsrange_state;
	125	struct frand_state __bsrange_state;
	126	};
	127	union {
	128	os_random_state_t verify_state;
	129	struct frand_state __verify_state;
	130	};
	131	union {
	132	os_random_state_t trim_state;
	133	struct frand_state __trim_state;
	134	};
	135
	136	struct frand_state buf_state;
	137
	138	unsigned int verify_batch;
	139	unsigned int trim_batch;
	140
	141	int shm_id;
	142
	143	/*
	144	* IO engine hooks, contains everything needed to submit an io_u
	145	* to any of the available IO engines.
	146	*/
	147	struct ioengine_ops *io_ops;
	148
	149	/*
	150	* Queue depth of io_u's that fio MIGHT do
	151	*/
	152	unsigned int cur_depth;
	153
	154	/*
	155	* io_u's about to be committed
	156	*/
	157	unsigned int io_u_queued;
	158
	159	/*
	160	* io_u's submitted but not completed yet
	161	*/
	162	unsigned int io_u_in_flight;
	163
	164	/*
	165	* List of free and busy io_u's
	166	*/
	167	struct flist_head io_u_freelist;
	168	struct flist_head io_u_busylist;
	169	struct flist_head io_u_requeues;
	170	pthread_mutex_t io_u_lock;
	171	pthread_cond_t free_cond;
	172
	173	/*
	174	* async verify offload
	175	*/
	176	struct flist_head verify_list;
	177	pthread_t *verify_threads;
	178	unsigned int nr_verify_threads;
	179	pthread_cond_t verify_cond;
	180	int verify_thread_exit;
	181
	182	/*
	183	* Rate state
	184	*/
	185	unsigned long long rate_bps[2];
	186	long rate_pending_usleep[2];
	187	unsigned long rate_bytes[2];
	188	unsigned long rate_blocks[2];
	189	struct timeval lastrate[2];
	190
	191	unsigned long long total_io_size;
	192	unsigned long long fill_device_size;
	193
	194	unsigned long io_issues[2];
	195	unsigned long long io_blocks[2];
	196	unsigned long long this_io_blocks[2];
	197	unsigned long long io_bytes[2];
	198	unsigned long long io_skip_bytes;
	199	unsigned long long this_io_bytes[2];
	200	unsigned long long zone_bytes;
	201	struct fio_mutex *mutex;
	202
	203	/*
	204	* State for random io, a bitmap of blocks done vs not done
	205	*/
	206	union {
	207	os_random_state_t random_state;
	208	struct frand_state __random_state;
	209	};
	210
	211	struct timeval start; /* start of this loop */
	212	struct timeval epoch; /* time job was started */
	213	struct timeval last_issue;
	214	struct timeval tv_cache;
	215	unsigned int tv_cache_nr;
	216	unsigned int tv_cache_mask;
	217	unsigned int ramp_time_over;
	218
	219	/*
	220	* read/write mixed workload state
	221	*/
	222	union {
	223	os_random_state_t rwmix_state;
	224	struct frand_state __rwmix_state;
	225	};
	226	unsigned long rwmix_issues;
	227	enum fio_ddir rwmix_ddir;
	228	unsigned int ddir_seq_nr;
	229
	230	/*
	231	* IO history logs for verification. We use a tree for sorting,
	232	* if we are overwriting. Otherwise just use a fifo.
	233	*/
	234	struct rb_root io_hist_tree;
	235	struct flist_head io_hist_list;
	236	unsigned long io_hist_len;
	237
	238	/*
	239	* For IO replaying
	240	*/
	241	struct flist_head io_log_list;
	242
	243	/*
	244	* For tracking/handling discards
	245	*/
	246	struct flist_head trim_list;
	247	unsigned long trim_entries;
	248
	249	/*
	250	* for fileservice, how often to switch to a new file
	251	*/
	252	unsigned int file_service_nr;
	253	unsigned int file_service_left;
	254	struct fio_file *file_service_file;
	255
	256	unsigned int sync_file_range_nr;
	257
	258	/*
	259	* For generating file sizes
	260	*/
	261	union {
	262	os_random_state_t file_size_state;
	263	struct frand_state __file_size_state;
	264	};
	265
	266	/*
	267	* Error counts
	268	*/
	269	unsigned int total_err_count;
	270	int first_error;
	271
	272	struct fio_flow *flow;
	273
	274	/*
	275	* Can be overloaded by profiles
	276	*/
	277	struct prof_io_ops prof_io_ops;
	278	void *prof_data;
	279	};
	280
	281	/*
	282	* when should interactive ETA output be generated
	283	*/
	284	enum {
	285	FIO_ETA_AUTO,
	286	FIO_ETA_ALWAYS,
	287	FIO_ETA_NEVER,
	288	};
	289
	290	#define __td_verror(td, err, msg, func) \
	291	do { \
	292	if ((td)->error) \
	293	break; \
	294	int e = (err); \
	295	(td)->error = e; \
	296	if (!(td)->first_error) \
	297	snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
	298	} while (0)
	299
	300
	301	#define td_clear_error(td) \
	302	(td)->error = 0;
	303	#define td_verror(td, err, func) \
	304	__td_verror((td), (err), strerror((err)), (func))
	305	#define td_vmsg(td, err, msg, func) \
	306	__td_verror((td), (err), (msg), (func))
	307
	308	#define __fio_stringify_1(x) #x
	309	#define __fio_stringify(x) __fio_stringify_1(x)
	310
	311	extern int exitall_on_terminate;
	312	extern unsigned int thread_number;
	313	extern unsigned int nr_process, nr_thread;
	314	extern int shm_id;
	315	extern int groupid;
	316	extern int terse_output;
	317	extern int temp_stall_ts;
	318	extern unsigned long long mlock_size;
	319	extern unsigned long page_mask, page_size;
	320	extern int read_only;
	321	extern int eta_print;
	322	extern unsigned long done_secs;
	323	extern char *job_section;
	324	extern int fio_gtod_offload;
	325	extern int fio_gtod_cpu;
	326	extern enum fio_cs fio_clock_source;
	327	extern int warnings_fatal;
	328	extern int terse_version;
	329	extern int is_backend;
	330	extern int nr_clients;
	331	extern int log_syslog;
	332	extern const char fio_version_string[];
	333	extern const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN];
	334
	335	extern struct thread_data *threads;
	336
	337	static inline void fio_ro_check(struct thread_data td, struct io_u io_u)
	338	{
	339	assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
	340	}
	341
	342	#define BLOCKS_PER_MAP (8 * sizeof(unsigned long))
	343	#define TO_MAP_BLOCK(f, b) (b)
	344	#define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
	345	#define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
	346
	347	#define REAL_MAX_JOBS 2048
	348
	349	#define td_non_fatal_error(e) ((e) == EIO \|\| (e) == EILSEQ)
	350
	351	static inline enum error_type td_error_type(enum fio_ddir ddir, int err)
	352	{
	353	if (err == EILSEQ)
	354	return ERROR_TYPE_VERIFY;
	355	if (ddir == DDIR_READ)
	356	return ERROR_TYPE_READ;
	357	return ERROR_TYPE_WRITE;
	358	}
	359
	360	static inline void update_error_count(struct thread_data *td, int err)
	361	{
	362	td->total_err_count++;
	363	if (td->total_err_count == 1)
	364	td->first_error = err;
	365	}
	366
	367	static inline int should_fsync(struct thread_data *td)
	368	{
	369	if (td->last_was_sync)
	370	return 0;
	371	if (td->o.odirect)
	372	return 0;
	373	if (td_write(td) \|\| td_rw(td) \|\| td->o.override_sync)
	374	return 1;
	375
	376	return 0;
	377	}
	378
	379	/*
	380	* Init/option functions
	381	*/
	382	extern int __must_check fio_init_options(void);
	383	extern int __must_check parse_options(int, char **);
	384	extern int parse_jobs_ini(char *, int, int, int);
	385	extern int parse_cmd_line(int, char **, int);
	386	extern int fio_backend(void);
	387	extern void reset_fio_state(void);
	388	extern void clear_io_state(struct thread_data *);
	389	extern int fio_options_parse(struct thread_data , char *, int);
	390	extern void fio_keywords_init(void);
	391	extern int fio_cmd_option_parse(struct thread_data , const char , char *);
	392	extern int fio_cmd_ioengine_option_parse(struct thread_data , const char , char *);
	393	extern void fio_fill_default_options(struct thread_data *);
	394	extern int fio_show_option_help(const char *);
	395	extern void fio_options_set_ioengine_opts(struct option long_options, struct thread_data td);
	396	extern void fio_options_dup_and_init(struct option *);
	397	extern void fio_options_mem_dupe(struct thread_data *);
	398	extern void options_mem_dupe(void data, struct fio_option options);
	399	extern void td_fill_rand_seeds(struct thread_data *);
	400	extern void add_job_opts(const char **, int);
	401	extern char *num2str(unsigned long, int, int, int);
	402	extern int ioengine_load(struct thread_data *);
	403
	404	extern unsigned long page_mask;
	405	extern unsigned long page_size;
	406	extern int initialize_fio(char *envp[]);
	407
	408	#define FIO_GETOPT_JOB 0x89000000
	409	#define FIO_GETOPT_IOENGINE 0x98000000
	410	#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
	411
	412	/*
	413	* ETA/status stuff
	414	*/
	415	extern void print_thread_status(void);
	416	extern void print_status_init(int);
	417	extern char *fio_uint_to_kmg(unsigned int val);
	418
	419	/*
	420	* Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
	421	* will never back again. It may cycle between running/verififying/fsyncing.
	422	* Once the thread reaches TD_EXITED, it is just waiting for the core to
	423	* reap it.
	424	*/
	425	enum {
	426	TD_NOT_CREATED = 0,
	427	TD_CREATED,
	428	TD_INITIALIZED,
	429	TD_RAMP,
	430	TD_RUNNING,
	431	TD_PRE_READING,
	432	TD_VERIFYING,
	433	TD_FSYNCING,
	434	TD_EXITED,
	435	TD_REAPED,
	436	};
	437
	438	extern void td_set_runstate(struct thread_data *, int);
	439	#define TERMINATE_ALL (-1)
	440	extern void fio_terminate_threads(int);
	441
	442	/*
	443	* Memory helpers
	444	*/
	445	extern int __must_check fio_pin_memory(void);
	446	extern void fio_unpin_memory(void);
	447	extern int __must_check allocate_io_mem(struct thread_data *);
	448	extern void free_io_mem(struct thread_data *);
	449
	450	/*
	451	* Reset stats after ramp time completes
	452	*/
	453	extern void reset_all_stats(struct thread_data *);
	454
	455	/*
	456	* blktrace support
	457	*/
	458	#ifdef FIO_HAVE_BLKTRACE
	459	extern int is_blktrace(const char *);
	460	extern int load_blktrace(struct thread_data , const char );
	461	#endif
	462
	463	/*
	464	* Mark unused variables passed to ops functions as unused, to silence gcc
	465	*/
	466	#define fio_unused __attribute((__unused__))
	467	#define fio_init __attribute__((constructor))
	468	#define fio_exit __attribute__((destructor))
	469
	470	#define for_each_td(td, i) \
	471	for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
	472	#define for_each_file(td, f, i) \
	473	if ((td)->files_index) \
	474	for ((i) = 0, (f) = (td)->files[0]; \
	475	(i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
	476	(i)++)
	477
	478	#define fio_assert(td, cond) do { \
	479	if (!(cond)) { \
	480	int *__foo = NULL; \
	481	fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
	482	td_set_runstate((td), TD_EXITED); \
	483	(td)->error = EFAULT; \
	484	*__foo = 0; \
	485	} \
	486	} while (0)
	487
	488	static inline int fio_fill_issue_time(struct thread_data *td)
	489	{
	490	if (td->o.read_iolog_file \|\|
	491	!td->o.disable_clat \|\| !td->o.disable_slat \|\| !td->o.disable_bw)
	492	return 1;
	493
	494	return 0;
	495	}
	496
	497	static inline int __should_check_rate(struct thread_data *td,
	498	enum fio_ddir ddir)
	499	{
	500	struct thread_options *o = &td->o;
	501
	502	/*
	503	* If some rate setting was given, we need to check it
	504	*/
	505	if (o->rate[ddir] \|\| o->ratemin[ddir] \|\| o->rate_iops[ddir] \|\|
	506	o->rate_iops_min[ddir])
	507	return 1;
	508
	509	return 0;
	510	}
	511
	512	static inline int should_check_rate(struct thread_data *td,
	513	unsigned long *bytes_done)
	514	{
	515	int ret = 0;
	516
	517	if (bytes_done[0])
	518	ret \|= __should_check_rate(td, 0);
	519	if (bytes_done[1])
	520	ret \|= __should_check_rate(td, 1);
	521
	522	return ret;
	523	}
	524
	525	static inline int is_power_of_2(unsigned int val)
	526	{
	527	return (val != 0 && ((val & (val - 1)) == 0));
	528	}
	529
	530	/*
	531	* We currently only need to do locking if we have verifier threads
	532	* accessing our internal structures too
	533	*/
	534	static inline void td_io_u_lock(struct thread_data *td)
	535	{
	536	if (td->o.verify_async)
	537	pthread_mutex_lock(&td->io_u_lock);
	538	}
	539
	540	static inline void td_io_u_unlock(struct thread_data *td)
	541	{
	542	if (td->o.verify_async)
	543	pthread_mutex_unlock(&td->io_u_lock);
	544	}
	545
	546	static inline void td_io_u_free_notify(struct thread_data *td)
	547	{
	548	if (td->o.verify_async)
	549	pthread_cond_signal(&td->free_cond);
	550	}
	551
	552	extern const char *fio_get_arch_string(int);
	553	extern const char *fio_get_os_string(int);
	554
	555	#endif