7 #include <sys/sysctl.h>
14 #ifndef CLOCK_MONOTONIC
15 #define CLOCK_MONOTONIC 1
18 #ifndef CLOCK_REALTIME
19 #define CLOCK_REALTIME 1
22 #define FIO_HAVE_POSIXAIO
23 #define FIO_HAVE_CLOCK_MONOTONIC
24 #define FIO_USE_GENERIC_RAND
26 #define OS_MAP_ANON MAP_ANON
29 * OSX has a pitifully small shared memory segment by default,
30 * so default to a lower number of max jobs supported
32 #define FIO_MAX_JOBS 128
34 typedef off_t off64_t;
36 /* OS X as of 10.6 doesn't have the timer_* functions.
37 * Emulate the functionality using setitimer and sigaction here
42 typedef unsigned int clockid_t;
43 typedef unsigned int timer_t;
46 struct timespec it_value;
47 struct timespec it_interval;
50 static struct sigevent fio_timers[MAX_TIMERS];
51 static unsigned int num_timers = 0;
53 static inline int timer_create(clockid_t clockid, struct sigevent *restrict evp,
54 timer_t *restrict timerid)
56 int current_timer = num_timers;
57 fio_timers[current_timer] = *evp;
60 *timerid = current_timer;
64 static void sig_alrm(int signum)
68 for (int i = 0; i < num_timers; i++) {
69 if (fio_timers[i].sigev_notify_function == NULL)
72 if (fio_timers[i].sigev_notify == SIGEV_THREAD)
73 fio_timers[i].sigev_notify_function(sv);
74 else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
75 kill(getpid(), fio_timers[i].sigev_signo);
79 static inline int timer_settime(timer_t timerid, int flags,
80 const struct itimerspec *value, 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 if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, bytes) == -1)
130 if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &temp) == -1)
136 static inline int blockdev_invalidate_cache(struct fio_file *f)
141 static inline unsigned long long os_phys_mem(void)
143 int mib[2] = { CTL_HW, HW_PHYSMEM };
144 unsigned long long mem;
145 size_t len = sizeof(mem);
147 sysctl(mib, 2, &mem, &len, NULL, 0);