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//======================================================================== |
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// GLFW 3.4 POSIX - www.glfw.org |
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//------------------------------------------------------------------------ |
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// Copyright (c) 2002-2006 Marcus Geelnard |
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// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org> |
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// |
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// This software is provided 'as-is', without any express or implied |
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// warranty. In no event will the authors be held liable for any damages |
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// arising from the use of this software. |
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// |
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// Permission is granted to anyone to use this software for any purpose, |
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// including commercial applications, and to alter it and redistribute it |
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// freely, subject to the following restrictions: |
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// |
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// 1. The origin of this software must not be misrepresented; you must not |
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// claim that you wrote the original software. If you use this software |
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// in a product, an acknowledgment in the product documentation would |
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// be appreciated but is not required. |
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// |
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// 2. Altered source versions must be plainly marked as such, and must not |
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// be misrepresented as being the original software. |
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// |
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// 3. This notice may not be removed or altered from any source |
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// distribution. |
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// |
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//======================================================================== |
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// It is fine to use C99 in this file because it will not be built with VS |
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//======================================================================== |
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#include "internal.h" |
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#include <unistd.h> |
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#include <sys/time.h> |
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////////////////////////////////////////////////////////////////////////// |
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////// GLFW platform API ////// |
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////////////////////////////////////////////////////////////////////////// |
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void _glfwPlatformInitTimer(void) |
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{ |
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_glfw.timer.posix.clock = CLOCK_REALTIME; |
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_glfw.timer.posix.frequency = 1000000000; |
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#if defined(_POSIX_MONOTONIC_CLOCK) |
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struct timespec ts; |
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if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) |
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_glfw.timer.posix.clock = CLOCK_MONOTONIC; |
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#endif |
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} |
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uint64_t _glfwPlatformGetTimerValue(void) |
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{ |
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struct timespec ts; |
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clock_gettime(_glfw.timer.posix.clock, &ts); |
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return (uint64_t) ts.tv_sec * _glfw.timer.posix.frequency + (uint64_t) ts.tv_nsec; |
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} |
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uint64_t _glfwPlatformGetTimerFrequency(void) |
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{ |
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return _glfw.timer.posix.frequency; |
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} |
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