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| 4358 | Serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright 2008-2010 VMware, Inc. |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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| 21 | * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
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| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | **************************************************************************/ |
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| 27 | |||
| 28 | /** |
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| 29 | * @file |
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| 30 | * OS independent time-manipulation functions. |
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| 31 | * |
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| 32 | * @author Jose Fonseca |
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| 33 | */ |
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| 34 | |||
| 35 | |||
| 36 | #include "pipe/p_config.h" |
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| 37 | |||
| 38 | #if defined(PIPE_OS_UNIX) |
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| 39 | # include |
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| 40 | # include |
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| 41 | #elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) |
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| 42 | # include |
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| 43 | #else |
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| 44 | # error Unsupported OS |
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| 45 | #endif |
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| 46 | |||
| 47 | #include "os_time.h" |
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| 48 | |||
| 49 | |||
| 50 | int64_t |
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| 51 | os_time_get_nano(void) |
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| 52 | { |
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| 53 | #if defined(PIPE_OS_LINUX) |
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| 54 | |||
| 55 | struct timespec tv; |
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| 56 | clock_gettime(CLOCK_MONOTONIC, &tv); |
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| 57 | return tv.tv_nsec + tv.tv_sec*INT64_C(1000000000); |
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| 58 | |||
| 59 | #elif defined(PIPE_OS_UNIX) |
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| 60 | |||
| 61 | struct timeval tv; |
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| 62 | gettimeofday(&tv, NULL); |
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| 63 | return tv.tv_usec*INT64_C(1000) + tv.tv_sec*INT64_C(1000000000); |
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| 64 | |||
| 65 | #elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) |
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| 66 | |||
| 67 | static LARGE_INTEGER frequency; |
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| 68 | LARGE_INTEGER counter; |
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| 69 | if(!frequency.QuadPart) |
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| 70 | QueryPerformanceFrequency(&frequency); |
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| 71 | QueryPerformanceCounter(&counter); |
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| 72 | return counter.QuadPart*INT64_C(1000000000)/frequency.QuadPart; |
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| 73 | |||
| 74 | #else |
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| 75 | |||
| 76 | #error Unsupported OS |
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| 77 | |||
| 78 | #endif |
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| 79 | } |
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| 80 | |||
| 81 | |||
| 82 | #if defined(PIPE_SUBSYSTEM_WINDOWS_USER) |
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| 83 | |||
| 84 | void |
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| 85 | os_time_sleep(int64_t usecs) |
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| 86 | { |
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| 87 | DWORD dwMilliseconds = (DWORD) ((usecs + 999) / 1000); |
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| 88 | /* Avoid Sleep(O) as that would cause to sleep for an undetermined duration */ |
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| 89 | if (dwMilliseconds) { |
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| 90 | Sleep(dwMilliseconds); |
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| 91 | } |
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| 92 | } |
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| 93 | |||
| 94 | #endif |