[fio.git] / os / os-mac.h

#ifndef FIO_OS_APPLE_H
#define FIO_OS_APPLE_H

#define	FIO_OS	os_mac

#include <errno.h>
#include <fcntl.h>
#include <sys/disk.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <unistd.h>
#include <signal.h>
#include <mach/mach_init.h>
#include <machine/endian.h>
#include <libkern/OSByteOrder.h>

#include "../file.h"

#ifndef CLOCK_MONOTONIC
#define CLOCK_MONOTONIC 1
#endif

#ifndef CLOCK_REALTIME
#define CLOCK_REALTIME 1
#endif

#define FIO_HAVE_POSIXAIO
#define FIO_HAVE_CLOCK_MONOTONIC
#define FIO_USE_GENERIC_RAND
#define FIO_HAVE_GETTID
#define FIO_HAVE_CHARDEV_SIZE

#define OS_MAP_ANON		MAP_ANON

#if defined(__LITTLE_ENDIAN__)
#define FIO_LITTLE_ENDIAN
#elif defined(__BIG_ENDIAN__)
#define FIO_BIG_ENDIAN
#else
#error "Undefined byte order"
#endif

#define fio_swap16(x)	OSSwapInt16(x)
#define fio_swap32(x)	OSSwapInt32(x)
#define fio_swap64(x)	OSSwapInt64(x)

/*
 * OSX has a pitifully small shared memory segment by default,
 * so default to a lower number of max jobs supported
 */
#define FIO_MAX_JOBS		128

typedef off_t off64_t;

/* OS X as of 10.6 doesn't have the timer_* functions. 
 * Emulate the functionality using setitimer and sigaction here
 */

#define MAX_TIMERS 64

typedef unsigned int clockid_t;
typedef unsigned int timer_t;

struct itimerspec {
	struct timespec it_value;
	struct timespec it_interval;
};

static struct sigevent fio_timers[MAX_TIMERS];
static unsigned int num_timers = 0;

static inline int timer_create(clockid_t clockid, struct sigevent *restrict evp,
				 timer_t *restrict timerid)
{
	int current_timer = num_timers;
	fio_timers[current_timer] = *evp;
	num_timers++;
	
	*timerid = current_timer;
	return 0;
}

static void sig_alrm(int signum)
{
	union sigval sv;
	
	for (int i = 0; i < num_timers; i++) {
		if (fio_timers[i].sigev_notify_function == NULL)
			continue;
		
		if (fio_timers[i].sigev_notify == SIGEV_THREAD)
			fio_timers[i].sigev_notify_function(sv);
		else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
			kill(getpid(), fio_timers[i].sigev_signo);
	}
}

static inline int timer_settime(timer_t timerid, int flags,
								const struct itimerspec *value, struct itimerspec *ovalue)
{
	struct sigaction sa;
	struct itimerval tv;
	struct itimerval tv_out;
	int rc;
	
	tv.it_interval.tv_sec = value->it_interval.tv_sec;
	tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;

	tv.it_value.tv_sec = value->it_value.tv_sec;
	tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;

	sa.sa_handler = sig_alrm;
	sigemptyset(&sa.sa_mask);
	sa.sa_flags = 0;
	
	rc = sigaction(SIGALRM, &sa, NULL);

	if (!rc)
		rc = setitimer(ITIMER_REAL, &tv, &tv_out);
	
	if (!rc && ovalue != NULL) {
		ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
		ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
		ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
		ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
	}

	return rc;
}

static inline int timer_delete(timer_t timer)
{
	return 0;
}

#define FIO_OS_DIRECTIO
static inline int fio_set_odirect(int fd)
{
	if (fcntl(fd, F_NOCACHE, 1) == -1)
		return errno;
	return 0;
}

static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
{
	uint32_t block_size;
	uint64_t block_count;

	if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, &block_count) == -1)
		return errno;
	if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &block_size) == -1)
		return errno;

	*bytes = block_size;
	*bytes *= block_count;
	return 0;
}

static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
{
	/*
	 * Could be a raw block device, this is better than just assuming
	 * we can't get the size at all.
	 */
	if (!blockdev_size(f, bytes))
		return 0;

	*bytes = -1ULL;
	return 0;
}

static inline int blockdev_invalidate_cache(struct fio_file *f)
{
	return EINVAL;
}

static inline unsigned long long os_phys_mem(void)
{
	int mib[2] = { CTL_HW, HW_PHYSMEM };
	unsigned long long mem;
	size_t len = sizeof(mem);

	sysctl(mib, 2, &mem, &len, NULL, 0);
	return mem;
}

static inline int gettid(void)
{
	return mach_thread_self();
}
#endif
Commit	Line	Data
2afd826b JA	1	#ifndef FIO_OS_APPLE_H
	2	#define FIO_OS_APPLE_H
	3
cca84643 JA	4	#define FIO_OS os_mac
cca84643 JA	5
2afd826b	6	#include <errno.h>
7e8ad197	7	#include <fcntl.h>
c64646f0	8	#include <sys/disk.h>
2afd826b	9	#include <sys/sysctl.h>
9b836561 BC	10	#include <sys/time.h>
	11	#include <unistd.h>
	12	#include <signal.h>
3dee087c	13	#include <mach/mach_init.h>
ff245192 JA	14	#include <machine/endian.h>
ff245192 JA	15	#include <libkern/OSByteOrder.h>
2afd826b	16
e2e58886 JA	17	#include "../file.h"
e2e58886 JA	18
2afd826b JA	19	#ifndef CLOCK_MONOTONIC
	20	#define CLOCK_MONOTONIC 1
	21	#endif
	22
	23	#ifndef CLOCK_REALTIME
	24	#define CLOCK_REALTIME 1
	25	#endif
	26
	27	#define FIO_HAVE_POSIXAIO
ecc314ba	28	#define FIO_HAVE_CLOCK_MONOTONIC
53531370	29	#define FIO_USE_GENERIC_RAND
e8d588e4	30	#define FIO_HAVE_GETTID
b42ffd19	31	#define FIO_HAVE_CHARDEV_SIZE
2afd826b JA	32
	33	#define OS_MAP_ANON MAP_ANON
	34
ff245192 JA	35	#if defined(__LITTLE_ENDIAN__)
	36	#define FIO_LITTLE_ENDIAN
	37	#elif defined(__BIG_ENDIAN__)
	38	#define FIO_BIG_ENDIAN
	39	#else
	40	#error "Undefined byte order"
	41	#endif
	42
	43	#define fio_swap16(x) OSSwapInt16(x)
	44	#define fio_swap32(x) OSSwapInt32(x)
	45	#define fio_swap64(x) OSSwapInt64(x)
	46
fca70358 JA	47	/*
	48	* OSX has a pitifully small shared memory segment by default,
	49	* so default to a lower number of max jobs supported
	50	*/
	51	#define FIO_MAX_JOBS 128
	52
331539ac	53	typedef off_t off64_t;
2afd826b	54
9b836561 BC	55	/* OS X as of 10.6 doesn't have the timer_* functions.
	56	* Emulate the functionality using setitimer and sigaction here
	57	*/
	58
	59	#define MAX_TIMERS 64
	60
	61	typedef unsigned int clockid_t;
	62	typedef unsigned int timer_t;
	63
	64	struct itimerspec {
	65	struct timespec it_value;
	66	struct timespec it_interval;
	67	};
	68
	69	static struct sigevent fio_timers[MAX_TIMERS];
	70	static unsigned int num_timers = 0;
	71
	72	static inline int timer_create(clockid_t clockid, struct sigevent *restrict evp,
	73	timer_t *restrict timerid)
	74	{
	75	int current_timer = num_timers;
	76	fio_timers[current_timer] = *evp;
	77	num_timers++;
	78
	79	*timerid = current_timer;
	80	return 0;
	81	}
	82
	83	static void sig_alrm(int signum)
	84	{
	85	union sigval sv;
	86
	87	for (int i = 0; i < num_timers; i++) {
	88	if (fio_timers[i].sigev_notify_function == NULL)
	89	continue;
	90
	91	if (fio_timers[i].sigev_notify == SIGEV_THREAD)
	92	fio_timers[i].sigev_notify_function(sv);
	93	else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
	94	kill(getpid(), fio_timers[i].sigev_signo);
	95	}
	96	}
	97
	98	static inline int timer_settime(timer_t timerid, int flags,
	99	const struct itimerspec value, struct itimerspec ovalue)
	100	{
	101	struct sigaction sa;
	102	struct itimerval tv;
	103	struct itimerval tv_out;
	104	int rc;
	105
	106	tv.it_interval.tv_sec = value->it_interval.tv_sec;
	107	tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;
	108
	109	tv.it_value.tv_sec = value->it_value.tv_sec;
	110	tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;
	111
	112	sa.sa_handler = sig_alrm;
	113	sigemptyset(&sa.sa_mask);
	114	sa.sa_flags = 0;
	115
	116	rc = sigaction(SIGALRM, &sa, NULL);
	117
	118	if (!rc)
119	rc = setitimer(ITIMER_REAL, &tv, &tv_out);
120
121	if (!rc && ovalue != NULL) {
122	ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
123	ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
124	ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
125	ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
126	}
127
128	return rc;
129	}
130
131	static inline int timer_delete(timer_t timer)
132	{
133	return 0;
134	}
135
7e8ad197 SN	136	#define FIO_OS_DIRECTIO
	137	static inline int fio_set_odirect(int fd)
	138	{
	139	if (fcntl(fd, F_NOCACHE, 1) == -1)
	140	return errno;
	141	return 0;
	142	}
	143
c64646f0 SN	144	static inline int blockdev_size(struct fio_file f, unsigned long long bytes)
c64646f0 SN	145	{
79d73100 JA	146	uint32_t block_size;
	147	uint64_t block_count;
	148
	149	if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, &block_count) == -1)
c64646f0	150	return errno;
79d73100	151	if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &block_size) == -1)
c64646f0	152	return errno;
79d73100 JA	153
	154	*bytes = block_size;
	155	bytes = block_count;
	156	return 0;
c64646f0 SN	157	}
c64646f0 SN	158
b42ffd19 JA	159	static inline int chardev_size(struct fio_file f, unsigned long long bytes)
	160	{
	161	/*
	162	* Could be a raw block device, this is better than just assuming
	163	* we can't get the size at all.
	164	*/
	165	if (!blockdev_size(f, bytes))
	166	return 0;
	167
	168	*bytes = -1ULL;
	169	return 0;
	170	}
	171
9b836561	172	static inline int blockdev_invalidate_cache(struct fio_file *f)
2afd826b JA	173	{
	174	return EINVAL;
	175	}
	176
	177	static inline unsigned long long os_phys_mem(void)
	178	{
	179	int mib[2] = { CTL_HW, HW_PHYSMEM };
	180	unsigned long long mem;
	181	size_t len = sizeof(mem);
	182
	183	sysctl(mib, 2, &mem, &len, NULL, 0);
	184	return mem;
	185	}
e8d588e4 JA	186
	187	static inline int gettid(void)
	188	{
	189	return mach_thread_self();
	190	}
2afd826b	191	#endif