| 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 */ |