| 1 | #ifndef FIO_OS_APPLE_H |
| 2 | #define FIO_OS_APPLE_H |
| 3 | |
| 4 | #include <errno.h> |
| 5 | #include <sys/sysctl.h> |
| 6 | #include <sys/time.h> |
| 7 | #include <unistd.h> |
| 8 | #include <signal.h> |
| 9 | |
| 10 | #include "../file.h" |
| 11 | |
| 12 | #ifndef CLOCK_MONOTONIC |
| 13 | #define CLOCK_MONOTONIC 1 |
| 14 | #endif |
| 15 | |
| 16 | #ifndef CLOCK_REALTIME |
| 17 | #define CLOCK_REALTIME 1 |
| 18 | #endif |
| 19 | |
| 20 | #define FIO_HAVE_POSIXAIO |
| 21 | #define FIO_HAVE_CLOCK_MONOTONIC |
| 22 | #define FIO_USE_GENERIC_BDEV_SIZE |
| 23 | #define FIO_USE_GENERIC_RAND |
| 24 | |
| 25 | #define OS_MAP_ANON MAP_ANON |
| 26 | |
| 27 | typedef off_t off64_t; |
| 28 | |
| 29 | /* OS X as of 10.6 doesn't have the timer_* functions. |
| 30 | * Emulate the functionality using setitimer and sigaction here |
| 31 | */ |
| 32 | |
| 33 | #define MAX_TIMERS 64 |
| 34 | |
| 35 | typedef unsigned int clockid_t; |
| 36 | typedef unsigned int timer_t; |
| 37 | |
| 38 | struct itimerspec { |
| 39 | struct timespec it_value; |
| 40 | struct timespec it_interval; |
| 41 | }; |
| 42 | |
| 43 | static struct sigevent fio_timers[MAX_TIMERS]; |
| 44 | static unsigned int num_timers = 0; |
| 45 | |
| 46 | static inline int timer_create(clockid_t clockid, struct sigevent *restrict evp, |
| 47 | timer_t *restrict timerid) |
| 48 | { |
| 49 | int current_timer = num_timers; |
| 50 | fio_timers[current_timer] = *evp; |
| 51 | num_timers++; |
| 52 | |
| 53 | *timerid = current_timer; |
| 54 | return 0; |
| 55 | } |
| 56 | |
| 57 | static void sig_alrm(int signum) |
| 58 | { |
| 59 | union sigval sv; |
| 60 | |
| 61 | for (int i = 0; i < num_timers; i++) { |
| 62 | if (fio_timers[i].sigev_notify_function == NULL) |
| 63 | continue; |
| 64 | |
| 65 | if (fio_timers[i].sigev_notify == SIGEV_THREAD) |
| 66 | fio_timers[i].sigev_notify_function(sv); |
| 67 | else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL) |
| 68 | kill(getpid(), fio_timers[i].sigev_signo); |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | static inline int timer_settime(timer_t timerid, int flags, |
| 73 | const struct itimerspec *value, struct itimerspec *ovalue) |
| 74 | { |
| 75 | struct sigaction sa; |
| 76 | struct itimerval tv; |
| 77 | struct itimerval tv_out; |
| 78 | int rc; |
| 79 | |
| 80 | tv.it_interval.tv_sec = value->it_interval.tv_sec; |
| 81 | tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000; |
| 82 | |
| 83 | tv.it_value.tv_sec = value->it_value.tv_sec; |
| 84 | tv.it_value.tv_usec = value->it_value.tv_nsec / 1000; |
| 85 | |
| 86 | sa.sa_handler = sig_alrm; |
| 87 | sigemptyset(&sa.sa_mask); |
| 88 | sa.sa_flags = 0; |
| 89 | |
| 90 | rc = sigaction(SIGALRM, &sa, NULL); |
| 91 | |
| 92 | if (!rc) |
| 93 | rc = setitimer(ITIMER_REAL, &tv, &tv_out); |
| 94 | |
| 95 | if (!rc && ovalue != NULL) { |
| 96 | ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec; |
| 97 | ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000; |
| 98 | ovalue->it_value.tv_sec = tv_out.it_value.tv_sec; |
| 99 | ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000; |
| 100 | } |
| 101 | |
| 102 | return rc; |
| 103 | } |
| 104 | |
| 105 | static inline int timer_delete(timer_t timer) |
| 106 | { |
| 107 | return 0; |
| 108 | } |
| 109 | |
| 110 | static inline int blockdev_invalidate_cache(struct fio_file *f) |
| 111 | { |
| 112 | return EINVAL; |
| 113 | } |
| 114 | |
| 115 | static inline unsigned long long os_phys_mem(void) |
| 116 | { |
| 117 | int mib[2] = { CTL_HW, HW_PHYSMEM }; |
| 118 | unsigned long long mem; |
| 119 | size_t len = sizeof(mem); |
| 120 | |
| 121 | sysctl(mib, 2, &mem, &len, NULL, 0); |
| 122 | return mem; |
| 123 | } |
| 124 | #endif |