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-rw-r--r--os/os-mac.h87
1 files changed, 85 insertions, 2 deletions
diff --git a/os/os-mac.h b/os/os-mac.h
index 068bc5c8..1a0a8875 100644
--- a/os/os-mac.h
+++ b/os/os-mac.h
@@ -3,6 +3,9 @@
#include <errno.h>
#include <sys/sysctl.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <signal.h>
#include "../file.h"
@@ -21,10 +24,90 @@
#define OS_MAP_ANON MAP_ANON
-typedef unsigned int clockid_t;
typedef off_t off64_t;
-static inline int blockdev_invalidate_cache(struct fio_file fio_unused *f)
+/* OS X as of 10.6 doesn't have the timer_* functions.
+ * Emulate the functionality using setitimer and sigaction here
+ */
+
+#define MAX_TIMERS 64
+
+typedef unsigned int clockid_t;
+typedef unsigned int timer_t;
+
+struct itimerspec {
+ struct timespec it_value;
+ struct timespec it_interval;
+};
+
+static struct sigevent fio_timers[MAX_TIMERS];
+static unsigned int num_timers = 0;
+
+static inline int timer_create(clockid_t clockid, struct sigevent *restrict evp,
+ timer_t *restrict timerid)
+{
+ int current_timer = num_timers;
+ fio_timers[current_timer] = *evp;
+ num_timers++;
+
+ *timerid = current_timer;
+ return 0;
+}
+
+static void sig_alrm(int signum)
+{
+ union sigval sv;
+
+ for (int i = 0; i < num_timers; i++) {
+ if (fio_timers[i].sigev_notify_function == NULL)
+ continue;
+
+ if (fio_timers[i].sigev_notify == SIGEV_THREAD)
+ fio_timers[i].sigev_notify_function(sv);
+ else if (fio_timers[i].sigev_notify == SIGEV_SIGNAL)
+ kill(getpid(), fio_timers[i].sigev_signo);
+ }
+}
+
+static inline int timer_settime(timer_t timerid, int flags,
+ const struct itimerspec *value, struct itimerspec *ovalue)
+{
+ struct sigaction sa;
+ struct itimerval tv;
+ struct itimerval tv_out;
+ int rc;
+
+ tv.it_interval.tv_sec = value->it_interval.tv_sec;
+ tv.it_interval.tv_usec = value->it_interval.tv_nsec / 1000;
+
+ tv.it_value.tv_sec = value->it_value.tv_sec;
+ tv.it_value.tv_usec = value->it_value.tv_nsec / 1000;
+
+ sa.sa_handler = sig_alrm;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = 0;
+
+ rc = sigaction(SIGALRM, &sa, NULL);
+
+ if (!rc)
+ rc = setitimer(ITIMER_REAL, &tv, &tv_out);
+
+ if (!rc && ovalue != NULL) {
+ ovalue->it_interval.tv_sec = tv_out.it_interval.tv_sec;
+ ovalue->it_interval.tv_nsec = tv_out.it_interval.tv_usec * 1000;
+ ovalue->it_value.tv_sec = tv_out.it_value.tv_sec;
+ ovalue->it_value.tv_nsec = tv_out.it_value.tv_usec * 1000;
+ }
+
+ return rc;
+}
+
+static inline int timer_delete(timer_t timer)
+{
+ return 0;
+}
+
+static inline int blockdev_invalidate_cache(struct fio_file *f)
{
return EINVAL;
}