2 * Copyright (C) 2016 Michael Jeanson <mjeanson@efficios.com>
4 * SPDX-License-Identifier: MIT
15 typedef uint64_t timer_t;
17 #include <mach/mach.h>
18 #include <mach/clock.h>
19 #include <common/compat/errno.hpp>
26 #endif /* __APPLE__ */
28 /* macOS/OS X 10.12 (Sierra) and up provide clock_gettime() */
29 #if defined(__APPLE__) && !defined(LTTNG_HAVE_CLOCK_GETTIME)
31 typedef int clockid_t;
32 #define CLOCK_REALTIME CALENDAR_CLOCK
33 #define CLOCK_MONOTONIC SYSTEM_CLOCK
36 int lttng_clock_gettime(clockid_t clk_id, struct timespec *tp)
42 if (clk_id != CLOCK_REALTIME && clk_id != CLOCK_MONOTONIC) {
48 host_get_clock_service(mach_host_self(), clk_id, &clock);
50 ret = clock_get_time(clock, &now);
51 if (ret != KERN_SUCCESS) {
56 tp->tv_sec = now.tv_sec;
57 tp->tv_nsec = now.tv_nsec;
60 mach_port_deallocate(mach_task_self(), clock);
65 #else /* __APPLE__ && !LTTNG_HAVE_CLOCK_GETTIME */
68 int lttng_clock_gettime(clockid_t clk_id, struct timespec *tp)
70 return clock_gettime(clk_id, tp);
73 #endif /* __APPLE__ && !LTTNG_HAVE_CLOCK_GETTIME */
75 #endif /* _COMPAT_TIME_H */