171 lines
3.6 KiB
C
171 lines
3.6 KiB
C
#ifndef FIO_OS_APPLE_H
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#define FIO_OS_APPLE_H
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#define FIO_OS os_mac
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/disk.h>
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#include <sys/sysctl.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <signal.h>
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#include <mach/mach_init.h>
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#include <machine/endian.h>
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#include <libkern/OSByteOrder.h>
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#include "../file.h"
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#define FIO_USE_GENERIC_RAND
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#define FIO_USE_GENERIC_INIT_RANDOM_STATE
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#define FIO_HAVE_GETTID
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#define FIO_HAVE_CHARDEV_SIZE
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#define OS_MAP_ANON MAP_ANON
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#define fio_swap16(x) OSSwapInt16(x)
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#define fio_swap32(x) OSSwapInt32(x)
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#define fio_swap64(x) OSSwapInt64(x)
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/*
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* OSX has a pitifully small shared memory segment by default,
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* so default to a lower number of max jobs supported
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*/
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#define FIO_MAX_JOBS 128
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typedef off_t off64_t;
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/* OS X as of 10.6 doesn't have the timer_* functions.
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* Emulate the functionality using setitimer and sigaction here
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*/
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#define MAX_TIMERS 64
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typedef unsigned int clockid_t;
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typedef unsigned int timer_t;
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struct itimerspec {
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struct timespec it_value;
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struct timespec it_interval;
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};
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static struct sigevent fio_timers[MAX_TIMERS];
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static unsigned int num_timers = 0;
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static void sig_alrm(int signum)
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{
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union sigval sv;
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for (int i = 0; i < num_timers; i++) {
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if (fio_timers[i].sigev_notify_function == NULL)
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continue;
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if (fio_timers[i].sigev_notify == SIGEV_THREAD)
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fio_timers[i].sigev_notify_function(sv);
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else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
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kill(getpid(), fio_timers[i].sigev_signo);
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}
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}
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static inline int timer_settime(timer_t timerid, int flags,
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const struct itimerspec *value,
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struct itimerspec *ovalue)
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{
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struct sigaction sa;
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struct itimerval tv;
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struct itimerval tv_out;
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int rc;
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tv.it_interval.tv_sec = value->it_interval.tv_sec;
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tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;
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tv.it_value.tv_sec = value->it_value.tv_sec;
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tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;
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sa.sa_handler = sig_alrm;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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rc = sigaction(SIGALRM, &sa, NULL);
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if (!rc)
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rc = setitimer(ITIMER_REAL, &tv, &tv_out);
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if (!rc && ovalue != NULL) {
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ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
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ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
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ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
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ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
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}
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return rc;
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}
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static inline int timer_delete(timer_t timer)
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{
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return 0;
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}
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#define FIO_OS_DIRECTIO
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static inline int fio_set_odirect(int fd)
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{
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if (fcntl(fd, F_NOCACHE, 1) == -1)
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return errno;
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return 0;
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}
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static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
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{
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uint32_t block_size;
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uint64_t block_count;
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if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, &block_count) == -1)
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return errno;
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if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &block_size) == -1)
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return errno;
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*bytes = block_size;
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*bytes *= block_count;
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return 0;
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}
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static inline int chardev_size(struct fio_file *f, unsigned long long *bytes)
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{
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/*
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* Could be a raw block device, this is better than just assuming
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* we can't get the size at all.
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*/
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if (!blockdev_size(f, bytes))
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return 0;
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*bytes = -1ULL;
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return 0;
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}
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static inline int blockdev_invalidate_cache(struct fio_file *f)
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{
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return EINVAL;
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}
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static inline unsigned long long os_phys_mem(void)
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{
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int mib[2] = { CTL_HW, HW_PHYSMEM };
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unsigned long long mem;
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size_t len = sizeof(mem);
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sysctl(mib, 2, &mem, &len, NULL, 0);
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return mem;
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}
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static inline int gettid(void)
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{
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return mach_thread_self();
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}
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/*
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* For some reason, there's no header definition for fdatasync(), even
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* if it exists.
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*/
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extern int fdatasync(int fd);
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#endif
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