7 #include <sys/sysctl.h>
11 #include <mach/mach_init.h>
12 #include <machine/endian.h>
13 #include <libkern/OSByteOrder.h>
17 #ifndef CLOCK_MONOTONIC
18 #define CLOCK_MONOTONIC 1
21 #ifndef CLOCK_REALTIME
22 #define CLOCK_REALTIME 1
25 #define FIO_HAVE_POSIXAIO
26 #define FIO_HAVE_CLOCK_MONOTONIC
27 #define FIO_USE_GENERIC_RAND
28 #define FIO_HAVE_GETTID
29 #define FIO_HAVE_CHARDEV_SIZE
31 #define OS_MAP_ANON MAP_ANON
33 #if defined(__LITTLE_ENDIAN__)
34 #define FIO_LITTLE_ENDIAN
35 #elif defined(__BIG_ENDIAN__)
36 #define FIO_BIG_ENDIAN
38 #error "Undefined byte order"
41 #define fio_swap16(x) OSSwapInt16(x)
42 #define fio_swap32(x) OSSwapInt32(x)
43 #define fio_swap64(x) OSSwapInt64(x)
46 * OSX has a pitifully small shared memory segment by default,
47 * so default to a lower number of max jobs supported
49 #define FIO_MAX_JOBS 128
51 typedef off_t off64_t;
53 /* OS X as of 10.6 doesn't have the timer_* functions.
54 * Emulate the functionality using setitimer and sigaction here
59 typedef unsigned int clockid_t;
60 typedef unsigned int timer_t;
63 struct timespec it_value;
64 struct timespec it_interval;
67 static struct sigevent fio_timers[MAX_TIMERS];
68 static unsigned int num_timers = 0;
70 static inline int timer_create(clockid_t clockid, struct sigevent *restrict evp,
71 timer_t *restrict timerid)
73 int current_timer = num_timers;
74 fio_timers[current_timer] = *evp;
77 *timerid = current_timer;
81 static void sig_alrm(int signum)
85 for (int i = 0; i < num_timers; i++) {
86 if (fio_timers[i].sigev_notify_function == NULL)
89 if (fio_timers[i].sigev_notify == SIGEV_THREAD)
90 fio_timers[i].sigev_notify_function(sv);
91 else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
92 kill(getpid(), fio_timers[i].sigev_signo);
96 static inline int timer_settime(timer_t timerid, int flags,
97 const struct itimerspec *value, struct itimerspec *ovalue)
101 struct itimerval tv_out;
104 tv.it_interval.tv_sec = value->it_interval.tv_sec;
105 tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;
107 tv.it_value.tv_sec = value->it_value.tv_sec;
108 tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;
110 sa.sa_handler = sig_alrm;
111 sigemptyset(&sa.sa_mask);
114 rc = sigaction(SIGALRM, &sa, NULL);
117 rc = setitimer(ITIMER_REAL, &tv, &tv_out);
119 if (!rc && ovalue != NULL) {
120 ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
121 ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
122 ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
123 ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
129 static inline int timer_delete(timer_t timer)
134 #define FIO_OS_DIRECTIO
135 static inline int fio_set_odirect(int fd)
137 if (fcntl(fd, F_NOCACHE, 1) == -1)
142 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
145 if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, bytes) == -1)
147 if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &temp) == -1)
153 static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
156 * Could be a raw block device, this is better than just assuming
157 * we can't get the size at all.
159 if (!blockdev_size(f, bytes))
166 static inline int blockdev_invalidate_cache(struct fio_file *f)
171 static inline unsigned long long os_phys_mem(void)
173 int mib[2] = { CTL_HW, HW_PHYSMEM };
174 unsigned long long mem;
175 size_t len = sizeof(mem);
177 sysctl(mib, 2, &mem, &len, NULL, 0);
181 static inline int gettid(void)
183 return mach_thread_self();