| 1 | #ifndef FIO_OS_APPLE_H |
| 2 | #define FIO_OS_APPLE_H |
| 3 | |
| 4 | #define FIO_OS os_mac |
| 5 | |
| 6 | #include <errno.h> |
| 7 | #include <fcntl.h> |
| 8 | #include <sys/disk.h> |
| 9 | #include <sys/sysctl.h> |
| 10 | #include <sys/time.h> |
| 11 | #include <unistd.h> |
| 12 | #include <signal.h> |
| 13 | #include <mach/mach_init.h> |
| 14 | #include <machine/endian.h> |
| 15 | #include <libkern/OSByteOrder.h> |
| 16 | |
| 17 | #include "../file.h" |
| 18 | |
| 19 | #ifndef CLOCK_MONOTONIC |
| 20 | #define CLOCK_MONOTONIC 1 |
| 21 | #endif |
| 22 | |
| 23 | #ifndef CLOCK_REALTIME |
| 24 | #define CLOCK_REALTIME 1 |
| 25 | #endif |
| 26 | |
| 27 | #define FIO_HAVE_POSIXAIO |
| 28 | #define FIO_HAVE_CLOCK_MONOTONIC |
| 29 | #define FIO_USE_GENERIC_RAND |
| 30 | #define FIO_HAVE_GETTID |
| 31 | #define FIO_HAVE_CHARDEV_SIZE |
| 32 | |
| 33 | #define OS_MAP_ANON MAP_ANON |
| 34 | |
| 35 | #if defined(__LITTLE_ENDIAN__) |
| 36 | #define FIO_LITTLE_ENDIAN |
| 37 | #elif defined(__BIG_ENDIAN__) |
| 38 | #define FIO_BIG_ENDIAN |
| 39 | #else |
| 40 | #error "Undefined byte order" |
| 41 | #endif |
| 42 | |
| 43 | #define fio_swap16(x) OSSwapInt16(x) |
| 44 | #define fio_swap32(x) OSSwapInt32(x) |
| 45 | #define fio_swap64(x) OSSwapInt64(x) |
| 46 | |
| 47 | /* |
| 48 | * OSX has a pitifully small shared memory segment by default, |
| 49 | * so default to a lower number of max jobs supported |
| 50 | */ |
| 51 | #define FIO_MAX_JOBS 128 |
| 52 | |
| 53 | typedef off_t off64_t; |
| 54 | |
| 55 | /* OS X as of 10.6 doesn't have the timer_* functions. |
| 56 | * Emulate the functionality using setitimer and sigaction here |
| 57 | */ |
| 58 | |
| 59 | #define MAX_TIMERS 64 |
| 60 | |
| 61 | typedef unsigned int clockid_t; |
| 62 | typedef unsigned int timer_t; |
| 63 | |
| 64 | struct itimerspec { |
| 65 | struct timespec it_value; |
| 66 | struct timespec it_interval; |
| 67 | }; |
| 68 | |
| 69 | static struct sigevent fio_timers[MAX_TIMERS]; |
| 70 | static unsigned int num_timers = 0; |
| 71 | |
| 72 | static inline int timer_create(clockid_t clockid, struct sigevent *restrict evp, |
| 73 | timer_t *restrict timerid) |
| 74 | { |
| 75 | int current_timer = num_timers; |
| 76 | fio_timers[current_timer] = *evp; |
| 77 | num_timers++; |
| 78 | |
| 79 | *timerid = current_timer; |
| 80 | return 0; |
| 81 | } |
| 82 | |
| 83 | static void sig_alrm(int signum) |
| 84 | { |
| 85 | union sigval sv; |
| 86 | |
| 87 | for (int i = 0; i < num_timers; i++) { |
| 88 | if (fio_timers[i].sigev_notify_function == NULL) |
| 89 | continue; |
| 90 | |
| 91 | if (fio_timers[i].sigev_notify == SIGEV_THREAD) |
| 92 | fio_timers[i].sigev_notify_function(sv); |
| 93 | else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL) |
| 94 | kill(getpid(), fio_timers[i].sigev_signo); |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | static inline int timer_settime(timer_t timerid, int flags, |
| 99 | const struct itimerspec *value, struct itimerspec *ovalue) |
| 100 | { |
| 101 | struct sigaction sa; |
| 102 | struct itimerval tv; |
| 103 | struct itimerval tv_out; |
| 104 | int rc; |
| 105 | |
| 106 | tv.it_interval.tv_sec = value->it_interval.tv_sec; |
| 107 | tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000; |
| 108 | |
| 109 | tv.it_value.tv_sec = value->it_value.tv_sec; |
| 110 | tv.it_value.tv_usec = value->it_value.tv_nsec / 1000; |
| 111 | |
| 112 | sa.sa_handler = sig_alrm; |
| 113 | sigemptyset(&sa.sa_mask); |
| 114 | sa.sa_flags = 0; |
| 115 | |
| 116 | rc = sigaction(SIGALRM, &sa, NULL); |
| 117 | |
| 118 | if (!rc) |
| 119 | rc = setitimer(ITIMER_REAL, &tv, &tv_out); |
| 120 | |
| 121 | if (!rc && ovalue != NULL) { |
| 122 | ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec; |
| 123 | ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000; |
| 124 | ovalue->it_value.tv_sec = tv_out.it_value.tv_sec; |
| 125 | ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000; |
| 126 | } |
| 127 | |
| 128 | return rc; |
| 129 | } |
| 130 | |
| 131 | static inline int timer_delete(timer_t timer) |
| 132 | { |
| 133 | return 0; |
| 134 | } |
| 135 | |
| 136 | #define FIO_OS_DIRECTIO |
| 137 | static inline int fio_set_odirect(int fd) |
| 138 | { |
| 139 | if (fcntl(fd, F_NOCACHE, 1) == -1) |
| 140 | return errno; |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) |
| 145 | { |
| 146 | uint32_t block_size; |
| 147 | uint64_t block_count; |
| 148 | |
| 149 | if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, &block_count) == -1) |
| 150 | return errno; |
| 151 | if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &block_size) == -1) |
| 152 | return errno; |
| 153 | |
| 154 | *bytes = block_size; |
| 155 | *bytes *= block_count; |
| 156 | return 0; |
| 157 | } |
| 158 | |
| 159 | static inline int chardev_size(struct fio_file *f, unsigned long long *bytes) |
| 160 | { |
| 161 | /* |
| 162 | * Could be a raw block device, this is better than just assuming |
| 163 | * we can't get the size at all. |
| 164 | */ |
| 165 | if (!blockdev_size(f, bytes)) |
| 166 | return 0; |
| 167 | |
| 168 | *bytes = -1ULL; |
| 169 | return 0; |
| 170 | } |
| 171 | |
| 172 | static inline int blockdev_invalidate_cache(struct fio_file *f) |
| 173 | { |
| 174 | return EINVAL; |
| 175 | } |
| 176 | |
| 177 | static inline unsigned long long os_phys_mem(void) |
| 178 | { |
| 179 | int mib[2] = { CTL_HW, HW_PHYSMEM }; |
| 180 | unsigned long long mem; |
| 181 | size_t len = sizeof(mem); |
| 182 | |
| 183 | sysctl(mib, 2, &mem, &len, NULL, 0); |
| 184 | return mem; |
| 185 | } |
| 186 | |
| 187 | static inline int gettid(void) |
| 188 | { |
| 189 | return mach_thread_self(); |
| 190 | } |
| 191 | #endif |