9 #include <sys/sysctl.h>
13 #include <mach/mach_init.h>
14 #include <machine/endian.h>
15 #include <libkern/OSByteOrder.h>
19 #define FIO_USE_GENERIC_RAND
20 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
21 #define FIO_HAVE_GETTID
22 #define FIO_HAVE_CHARDEV_SIZE
24 #define OS_MAP_ANON MAP_ANON
26 #if defined(__LITTLE_ENDIAN__)
27 #define FIO_LITTLE_ENDIAN
28 #elif defined(__BIG_ENDIAN__)
29 #define FIO_BIG_ENDIAN
31 #error "Undefined byte order"
34 #define fio_swap16(x) OSSwapInt16(x)
35 #define fio_swap32(x) OSSwapInt32(x)
36 #define fio_swap64(x) OSSwapInt64(x)
39 * OSX has a pitifully small shared memory segment by default,
40 * so default to a lower number of max jobs supported
42 #define FIO_MAX_JOBS 128
44 typedef off_t off64_t;
46 /* OS X as of 10.6 doesn't have the timer_* functions.
47 * Emulate the functionality using setitimer and sigaction here
52 typedef unsigned int clockid_t;
53 typedef unsigned int timer_t;
56 struct timespec it_value;
57 struct timespec it_interval;
60 static struct sigevent fio_timers[MAX_TIMERS];
61 static unsigned int num_timers = 0;
63 static void sig_alrm(int signum)
67 for (int i = 0; i < num_timers; i++) {
68 if (fio_timers[i].sigev_notify_function == NULL)
71 if (fio_timers[i].sigev_notify == SIGEV_THREAD)
72 fio_timers[i].sigev_notify_function(sv);
73 else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
74 kill(getpid(), fio_timers[i].sigev_signo);
78 static inline int timer_settime(timer_t timerid, int flags,
79 const struct itimerspec *value,
80 struct itimerspec *ovalue)
84 struct itimerval tv_out;
87 tv.it_interval.tv_sec = value->it_interval.tv_sec;
88 tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;
90 tv.it_value.tv_sec = value->it_value.tv_sec;
91 tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;
93 sa.sa_handler = sig_alrm;
94 sigemptyset(&sa.sa_mask);
97 rc = sigaction(SIGALRM, &sa, NULL);
100 rc = setitimer(ITIMER_REAL, &tv, &tv_out);
102 if (!rc && ovalue != NULL) {
103 ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
104 ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
105 ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
106 ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
112 static inline int timer_delete(timer_t timer)
117 #define FIO_OS_DIRECTIO
118 static inline int fio_set_odirect(int fd)
120 if (fcntl(fd, F_NOCACHE, 1) == -1)
125 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
128 uint64_t block_count;
130 if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, &block_count) == -1)
132 if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &block_size) == -1)
136 *bytes *= block_count;
140 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
143 * Could be a raw block device, this is better than just assuming
144 * we can't get the size at all.
146 if (!blockdev_size(f, bytes))
153 static inline int blockdev_invalidate_cache(struct fio_file *f)
158 static inline unsigned long long os_phys_mem(void)
160 int mib[2] = { CTL_HW, HW_PHYSMEM };
161 unsigned long long mem;
162 size_t len = sizeof(mem);
164 sysctl(mib, 2, &mem, &len, NULL, 0);
168 static inline int gettid(void)
170 return mach_thread_self();
174 * For some reason, there's no header definition for fdatasync(), even
177 extern int fdatasync(int fd);