9 #include <sys/sysctl.h>
13 #include <mach/mach_init.h>
14 #include <machine/endian.h>
15 #include <libkern/OSByteOrder.h>
19 #ifndef CLOCK_REALTIME
20 #define CLOCK_REALTIME 1
23 #define FIO_USE_GENERIC_RAND
24 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
25 #define FIO_HAVE_GETTID
26 #define FIO_HAVE_CHARDEV_SIZE
28 #define OS_MAP_ANON MAP_ANON
30 #if defined(__LITTLE_ENDIAN__)
31 #define FIO_LITTLE_ENDIAN
32 #elif defined(__BIG_ENDIAN__)
33 #define FIO_BIG_ENDIAN
35 #error "Undefined byte order"
38 #define fio_swap16(x) OSSwapInt16(x)
39 #define fio_swap32(x) OSSwapInt32(x)
40 #define fio_swap64(x) OSSwapInt64(x)
43 * OSX has a pitifully small shared memory segment by default,
44 * so default to a lower number of max jobs supported
46 #define FIO_MAX_JOBS 128
48 typedef off_t off64_t;
50 /* OS X as of 10.6 doesn't have the timer_* functions.
51 * Emulate the functionality using setitimer and sigaction here
56 typedef unsigned int clockid_t;
57 typedef unsigned int timer_t;
60 struct timespec it_value;
61 struct timespec it_interval;
64 static struct sigevent fio_timers[MAX_TIMERS];
65 static unsigned int num_timers = 0;
67 static void sig_alrm(int signum)
71 for (int i = 0; i < num_timers; i++) {
72 if (fio_timers[i].sigev_notify_function == NULL)
75 if (fio_timers[i].sigev_notify == SIGEV_THREAD)
76 fio_timers[i].sigev_notify_function(sv);
77 else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
78 kill(getpid(), fio_timers[i].sigev_signo);
82 static inline int timer_settime(timer_t timerid, int flags,
83 const struct itimerspec *value,
84 struct itimerspec *ovalue)
88 struct itimerval tv_out;
91 tv.it_interval.tv_sec = value->it_interval.tv_sec;
92 tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;
94 tv.it_value.tv_sec = value->it_value.tv_sec;
95 tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;
97 sa.sa_handler = sig_alrm;
98 sigemptyset(&sa.sa_mask);
101 rc = sigaction(SIGALRM, &sa, NULL);
104 rc = setitimer(ITIMER_REAL, &tv, &tv_out);
106 if (!rc && ovalue != NULL) {
107 ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
108 ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
109 ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
110 ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
116 static inline int timer_delete(timer_t timer)
121 #define FIO_OS_DIRECTIO
122 static inline int fio_set_odirect(int fd)
124 if (fcntl(fd, F_NOCACHE, 1) == -1)
129 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
132 uint64_t block_count;
134 if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, &block_count) == -1)
136 if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &block_size) == -1)
140 *bytes *= block_count;
144 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
147 * Could be a raw block device, this is better than just assuming
148 * we can't get the size at all.
150 if (!blockdev_size(f, bytes))
157 static inline int blockdev_invalidate_cache(struct fio_file *f)
162 static inline unsigned long long os_phys_mem(void)
164 int mib[2] = { CTL_HW, HW_PHYSMEM };
165 unsigned long long mem;
166 size_t len = sizeof(mem);
168 sysctl(mib, 2, &mem, &len, NULL, 0);
172 static inline int gettid(void)
174 return mach_thread_self();
178 * For some reason, there's no header definition for fdatasync(), even
181 extern int fdatasync(int fd);