1 /* 2 * Copyright 2011, Ingo Weinhold, ingo_weinhold@gmx.de. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _LIBROOT_TIME_PRIVATE_H 6 #define _LIBROOT_TIME_PRIVATE_H 7 8 9 #include <errno.h> 10 #include <sys/cdefs.h> 11 #include <sys/time.h> 12 #include <time.h> 13 14 #include <SupportDefs.h> 15 16 #include <new> 17 18 #define CLOCKS_PER_SEC_BEOS 1000 19 #define CLK_TCK_BEOS CLOCKS_PER_SEC_BEOS 20 21 #define MICROSECONDS_PER_CLOCK_TICK (1000000 / CLOCKS_PER_SEC) 22 #define MICROSECONDS_PER_CLOCK_TICK_BEOS (1000000 / CLOCKS_PER_SEC_BEOS) 23 24 25 struct __timer_t { 26 int32 id; 27 thread_id thread; 28 29 void SetTo(int32 id, thread_id thread) 30 { 31 this->id = id; 32 this->thread = thread; 33 } 34 }; 35 36 37 static inline void 38 bigtime_to_timespec(bigtime_t time, timespec& spec) 39 { 40 spec.tv_sec = time / 1000000; 41 spec.tv_nsec = (time % 1000000) * 1000; 42 } 43 44 45 static inline bool 46 timespec_to_bigtime(const timespec& spec, bigtime_t& _time) 47 { 48 if (spec.tv_sec < 0 || spec.tv_nsec < 0 || spec.tv_nsec >= 1000000000) 49 return false; 50 51 _time = (bigtime_t)spec.tv_sec * 1000000 + (spec.tv_nsec + 999) / 1000; 52 53 return true; 54 } 55 56 57 static inline bool 58 timeval_to_timespec(const timeval& val, timespec& spec) 59 { 60 if (val.tv_sec < 0 || val.tv_usec < 0 || val.tv_usec >= 1000000) 61 return false; 62 63 spec.tv_sec = val.tv_sec; 64 spec.tv_nsec = val.tv_usec * 1000; 65 66 return true; 67 } 68 69 70 static inline void 71 timespec_to_timeval(const timespec& spec, timeval& val) 72 { 73 val.tv_sec = spec.tv_sec; 74 val.tv_usec = spec.tv_nsec / 1000; 75 } 76 77 78 __BEGIN_DECLS 79 80 81 clock_t __clock_beos(void); 82 clock_t __clock(void); 83 84 85 __END_DECLS 86 87 88 #endif // _LIBROOT_TIME_PRIVATE_H 89