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1 | #ifndef _BABELTRACE_CLOCK_INTERNAL_H |
2 | #define _BABELTRACE_CLOCK_INTERNAL_H | |
3 | ||
4 | /* | |
5 | * BabelTrace | |
6 | * | |
7 | * clocks header (internal) | |
8 | * | |
9 | * Copyright 2012 EfficiOS Inc. and Linux Foundation | |
10 | * | |
11 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
12 | * Julien Desfossez <julien.desfossez@efficios.com> | |
13 | * | |
14 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
15 | * of this software and associated documentation files (the "Software"), to deal | |
16 | * in the Software without restriction, including without limitation the rights | |
17 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
18 | * copies of the Software, and to permit persons to whom the Software is | |
19 | * furnished to do so, subject to the following conditions: | |
20 | * | |
21 | * The above copyright notice and this permission notice shall be included in | |
22 | * all copies or substantial portions of the Software. | |
23 | */ | |
24 | ||
25 | static inline | |
26 | uint64_t clock_cycles_to_ns(struct ctf_clock *clock, uint64_t cycles) | |
27 | { | |
28 | if (clock->freq == 1000000000ULL) { | |
29 | /* 1GHZ freq, no need to scale cycles value */ | |
30 | return cycles; | |
31 | } else { | |
32 | return (double) cycles * 1000000000.0 | |
33 | / (double) clock->freq; | |
34 | } | |
35 | } | |
36 | ||
37 | #endif /* _BABELTRACE_CLOCK_INTERNAL_H */ |