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389fbf04 MJ |
1 | /* |
2 | * Copyright (C) 2016 Michael Jeanson <mjeanson@efficios.com> | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 | * of this software and associated documentation files (the "Software"), to deal | |
6 | * in the Software without restriction, including without limitation the rights | |
7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
8 | * copies of the Software, and to permit persons to whom the Software is | |
9 | * furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
20 | * SOFTWARE. | |
21 | */ | |
22 | ||
23 | #ifndef _COMPAT_TIME_H | |
24 | #define _COMPAT_TIME_H | |
25 | ||
26 | #include <time.h> | |
27 | ||
28 | #ifdef __APPLE__ | |
29 | typedef uint64_t timer_t; | |
30 | typedef int clockid_t; | |
31 | ||
32 | #include <mach/mach.h> | |
33 | #include <mach/clock.h> | |
34 | ||
35 | #define CLOCK_REALTIME CALENDAR_CLOCK | |
36 | #define CLOCK_MONOTONIC SYSTEM_CLOCK | |
37 | ||
38 | static inline | |
39 | int lttng_clock_gettime(clockid_t clk_id, struct timespec *tp) | |
40 | { | |
41 | int ret = 0; | |
42 | clock_serv_t clock; | |
43 | mach_timespec_t now; | |
44 | ||
45 | if (clk_id != CLOCK_REALTIME && clk_id != CLOCK_MONOTONIC) { | |
46 | ret = -1; | |
47 | errno = EINVAL; | |
48 | goto end; | |
49 | } | |
50 | ||
51 | host_get_clock_service(mach_host_self(), clk_id, &clock); | |
52 | ||
53 | ret = clock_get_time(clock, &now); | |
54 | if (ret != KERN_SUCCESS) { | |
55 | ret = -1; | |
56 | goto deallocate; | |
57 | } | |
58 | ||
59 | tp->tv_sec = now.tv_sec; | |
60 | tp->tv_nsec = now.tv_nsec; | |
61 | ||
62 | deallocate: | |
63 | mach_port_deallocate(mach_task_self(), clock); | |
64 | end: | |
65 | return ret; | |
66 | } | |
67 | ||
68 | #else /* __APPLE__ */ | |
69 | ||
70 | static inline | |
71 | int lttng_clock_gettime(clockid_t clk_id, struct timespec *tp) | |
72 | { | |
73 | return clock_gettime(clk_id, tp); | |
74 | } | |
75 | ||
76 | #endif /* __APPLE__ */ | |
77 | ||
78 | #endif /* _COMPAT_TIME_H */ |