9 #include <sys/sysctl.h>
13 #include <mach/mach_init.h>
14 #include <machine/endian.h>
15 #include <libkern/OSByteOrder.h>
19 #ifndef CLOCK_MONOTONIC
20 #define CLOCK_MONOTONIC 1
23 #ifndef CLOCK_REALTIME
24 #define CLOCK_REALTIME 1
27 #define FIO_HAVE_POSIXAIO
28 #define FIO_HAVE_CLOCK_MONOTONIC
29 #define FIO_USE_GENERIC_RAND
30 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
31 #define FIO_HAVE_GETTID
32 #define FIO_HAVE_CHARDEV_SIZE
34 #define OS_MAP_ANON MAP_ANON
36 #if defined(__LITTLE_ENDIAN__)
37 #define FIO_LITTLE_ENDIAN
38 #elif defined(__BIG_ENDIAN__)
39 #define FIO_BIG_ENDIAN
41 #error "Undefined byte order"
44 #define fio_swap16(x) OSSwapInt16(x)
45 #define fio_swap32(x) OSSwapInt32(x)
46 #define fio_swap64(x) OSSwapInt64(x)
49 * OSX has a pitifully small shared memory segment by default,
50 * so default to a lower number of max jobs supported
52 #define FIO_MAX_JOBS 128
54 typedef off_t off64_t;
56 /* OS X as of 10.6 doesn't have the timer_* functions.
57 * Emulate the functionality using setitimer and sigaction here
62 typedef unsigned int clockid_t;
63 typedef unsigned int timer_t;
66 struct timespec it_value;
67 struct timespec it_interval;
70 static struct sigevent fio_timers[MAX_TIMERS];
71 static unsigned int num_timers = 0;
73 static void sig_alrm(int signum)
77 for (int i = 0; i < num_timers; i++) {
78 if (fio_timers[i].sigev_notify_function == NULL)
81 if (fio_timers[i].sigev_notify == SIGEV_THREAD)
82 fio_timers[i].sigev_notify_function(sv);
83 else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
84 kill(getpid(), fio_timers[i].sigev_signo);
88 static inline int timer_settime(timer_t timerid, int flags,
89 const struct itimerspec *value,
90 struct itimerspec *ovalue)
94 struct itimerval tv_out;
97 tv.it_interval.tv_sec = value->it_interval.tv_sec;
98 tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;
100 tv.it_value.tv_sec = value->it_value.tv_sec;
101 tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;
103 sa.sa_handler = sig_alrm;
104 sigemptyset(&sa.sa_mask);
107 rc = sigaction(SIGALRM, &sa, NULL);
110 rc = setitimer(ITIMER_REAL, &tv, &tv_out);
112 if (!rc && ovalue != NULL) {
113 ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
114 ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
115 ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
116 ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
122 static inline int timer_delete(timer_t timer)
127 #define FIO_OS_DIRECTIO
128 static inline int fio_set_odirect(int fd)
130 if (fcntl(fd, F_NOCACHE, 1) == -1)
135 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
138 uint64_t block_count;
140 if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, &block_count) == -1)
142 if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &block_size) == -1)
146 *bytes *= block_count;
150 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
153 * Could be a raw block device, this is better than just assuming
154 * we can't get the size at all.
156 if (!blockdev_size(f, bytes))
163 static inline int blockdev_invalidate_cache(struct fio_file *f)
168 static inline unsigned long long os_phys_mem(void)
170 int mib[2] = { CTL_HW, HW_PHYSMEM };
171 unsigned long long mem;
172 size_t len = sizeof(mem);
174 sysctl(mib, 2, &mem, &len, NULL, 0);
178 static inline int gettid(void)
180 return mach_thread_self();