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_USE_GENERIC_RAND
28 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
29 #define FIO_HAVE_GETTID
30 #define FIO_HAVE_CHARDEV_SIZE
32 #define OS_MAP_ANON MAP_ANON
34 #if defined(__LITTLE_ENDIAN__)
35 #define FIO_LITTLE_ENDIAN
36 #elif defined(__BIG_ENDIAN__)
37 #define FIO_BIG_ENDIAN
39 #error "Undefined byte order"
42 #define fio_swap16(x) OSSwapInt16(x)
43 #define fio_swap32(x) OSSwapInt32(x)
44 #define fio_swap64(x) OSSwapInt64(x)
47 * OSX has a pitifully small shared memory segment by default,
48 * so default to a lower number of max jobs supported
50 #define FIO_MAX_JOBS 128
52 typedef off_t off64_t;
54 /* OS X as of 10.6 doesn't have the timer_* functions.
55 * Emulate the functionality using setitimer and sigaction here
60 typedef unsigned int clockid_t;
61 typedef unsigned int timer_t;
64 struct timespec it_value;
65 struct timespec it_interval;
68 static struct sigevent fio_timers[MAX_TIMERS];
69 static unsigned int num_timers = 0;
71 static void sig_alrm(int signum)
75 for (int i = 0; i < num_timers; i++) {
76 if (fio_timers[i].sigev_notify_function == NULL)
79 if (fio_timers[i].sigev_notify == SIGEV_THREAD)
80 fio_timers[i].sigev_notify_function(sv);
81 else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
82 kill(getpid(), fio_timers[i].sigev_signo);
86 static inline int timer_settime(timer_t timerid, int flags,
87 const struct itimerspec *value,
88 struct itimerspec *ovalue)
92 struct itimerval tv_out;
95 tv.it_interval.tv_sec = value->it_interval.tv_sec;
96 tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;
98 tv.it_value.tv_sec = value->it_value.tv_sec;
99 tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;
101 sa.sa_handler = sig_alrm;
102 sigemptyset(&sa.sa_mask);
105 rc = sigaction(SIGALRM, &sa, NULL);
108 rc = setitimer(ITIMER_REAL, &tv, &tv_out);
110 if (!rc && ovalue != NULL) {
111 ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
112 ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
113 ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
114 ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
120 static inline int timer_delete(timer_t timer)
125 #define FIO_OS_DIRECTIO
126 static inline int fio_set_odirect(int fd)
128 if (fcntl(fd, F_NOCACHE, 1) == -1)
133 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
136 uint64_t block_count;
138 if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, &block_count) == -1)
140 if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &block_size) == -1)
144 *bytes *= block_count;
148 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
151 * Could be a raw block device, this is better than just assuming
152 * we can't get the size at all.
154 if (!blockdev_size(f, bytes))
161 static inline int blockdev_invalidate_cache(struct fio_file *f)
166 static inline unsigned long long os_phys_mem(void)
168 int mib[2] = { CTL_HW, HW_PHYSMEM };
169 unsigned long long mem;
170 size_t len = sizeof(mem);
172 sysctl(mib, 2, &mem, &len, NULL, 0);
176 static inline int gettid(void)
178 return mach_thread_self();