projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 389fbf04 MJ |
1 | /* |
| 2 | * Copyright (C) 2016 Michael Jeanson <mjeanson@efficios.com> | |
| 3 | * | |
| ab5be9fa | 4 | * SPDX-License-Identifier: MIT |
| 389fbf04 | 5 | * |
| 389fbf04 MJ |
6 | */ |
| 7 | ||
| 8 | #ifndef _COMPAT_TIME_H | |
| 9 | #define _COMPAT_TIME_H | |
| 10 | ||
| 11 | #include <time.h> | |
| 12 | ||
| 13 | #ifdef __APPLE__ | |
| 707de922 | 14 | |
| 8c3f60f3 MJ |
15 | #include <cstdint> |
| 16 | ||
| 389fbf04 | 17 | typedef uint64_t timer_t; |
| 389fbf04 MJ |
18 | |
| 19 | #include <mach/mach.h> | |
| 20 | #include <mach/clock.h> | |
| c9e313bc | 21 | #include <common/compat/errno.hpp> |
| 389fbf04 | 22 | |
| 395d6b02 JG |
23 | #undef NSEC_PER_SEC |
| 24 | #undef NSEC_PER_MSEC | |
| 25 | #undef NSEC_PER_USEC | |
| efef32e9 | 26 | #undef USEC_PER_SEC |
| 395d6b02 | 27 | |
| 707de922 JG |
28 | #endif /* __APPLE__ */ |
| 29 | ||
| 30 | /* macOS/OS X 10.12 (Sierra) and up provide clock_gettime() */ | |
| 31 | #if defined(__APPLE__) && !defined(LTTNG_HAVE_CLOCK_GETTIME) | |
| 32 | ||
| 33 | typedef int clockid_t; | |
| 389fbf04 MJ |
34 | #define CLOCK_REALTIME CALENDAR_CLOCK |
| 35 | #define CLOCK_MONOTONIC SYSTEM_CLOCK | |
| 36 | ||
| 37 | static inline | |
| 38 | int lttng_clock_gettime(clockid_t clk_id, struct timespec *tp) | |
| 39 | { | |
| 40 | int ret = 0; | |
| 41 | clock_serv_t clock; | |
| 42 | mach_timespec_t now; | |
| 43 | ||
| 44 | if (clk_id != CLOCK_REALTIME && clk_id != CLOCK_MONOTONIC) { | |
| 45 | ret = -1; | |
| 46 | errno = EINVAL; | |
| 47 | goto end; | |
| 48 | } | |
| 49 | ||
| 50 | host_get_clock_service(mach_host_self(), clk_id, &clock); | |
| 51 | ||
| 52 | ret = clock_get_time(clock, &now); | |
| 53 | if (ret != KERN_SUCCESS) { | |
| 54 | ret = -1; | |
| 55 | goto deallocate; | |
| 56 | } | |
| 57 | ||
| 44f6feb7 JG |
58 | tp->tv_sec = now.tv_sec; |
| 59 | tp->tv_nsec = now.tv_nsec; | |
| 389fbf04 MJ |
60 | |
| 61 | deallocate: | |
| 62 | mach_port_deallocate(mach_task_self(), clock); | |
| 63 | end: | |
| 64 | return ret; | |
| 65 | } | |
| 66 | ||
| 707de922 | 67 | #else /* __APPLE__ && !LTTNG_HAVE_CLOCK_GETTIME */ |
| 389fbf04 MJ |
68 | |
| 69 | static inline | |
| 70 | int lttng_clock_gettime(clockid_t clk_id, struct timespec *tp) | |
| 71 | { | |
| 72 | return clock_gettime(clk_id, tp); | |
| 73 | } | |
| 74 | ||
| 707de922 | 75 | #endif /* __APPLE__ && !LTTNG_HAVE_CLOCK_GETTIME */ |
| 389fbf04 MJ |
76 | |
| 77 | #endif /* _COMPAT_TIME_H */ |