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1 changed files with 44 additions and 22 deletions
66
clock.h
66
clock.h
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@ -6,15 +6,13 @@
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* copyright and related or neighboring rights to this code. For
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* details, see the Creative Commons Zero 1.0 Universal license at
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* https://creativecommons.org/publicdomain/zero/1.0/
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*
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* Modified by Connor Olding, 2017
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*/
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#if !defined(PSNIP_CLOCK_H)
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#define PSNIP_CLOCK_H
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#if !defined(psnip_uint64_t)
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# include "../exact-int/exact-int.h"
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#endif
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#if !defined(PSNIP_CLOCK_STATIC_INLINE)
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# if defined(__GNUC__)
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# define PSNIP_CLOCK__COMPILER_ATTRIBUTES __attribute__((__unused__))
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@ -42,8 +40,8 @@ enum PsnipClockType {
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};
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struct PsnipClockTimespec {
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psnip_uint64_t seconds;
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psnip_uint64_t nanoseconds;
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uint64_t seconds;
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uint64_t nanoseconds;
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};
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/* Methods we support: */
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@ -102,7 +100,7 @@ struct PsnipClockTimespec {
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# endif
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#endif
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#if defined(__MACH__) && !defined(__gnu_hurd__)
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#if defined(__MACH__)
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# if !defined(PSNIP_CLOCK_MONOTONIC_METHOD)
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# define PSNIP_CLOCK_MONOTONIC_METHOD PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME
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# endif
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@ -190,7 +188,31 @@ struct PsnipClockTimespec {
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(defined(PSNIP_CLOCK_CPU_METHOD) && (PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64)) || \
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(defined(PSNIP_CLOCK_WALL_METHOD) && (PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64)) || \
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(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && (PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64))
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# include <windows.h>
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typedef struct _FILETIME {
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uint32_t dwLowDateTime;
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uint32_t dwHighDateTime;
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} FILETIME;
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typedef union _LARGE_INTEGER {
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struct {
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uint32_t LowPart;
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int32_t HighPart;
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};
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struct {
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uint32_t LowPart;
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int32_t HighPart;
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} u;
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int64_t QuadPart;
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} LARGE_INTEGER;
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void * __stdcall GetCurrentProcess(void);
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int __stdcall QueryPerformanceFrequency(LARGE_INTEGER *lpFrequency);
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int __stdcall QueryPerformanceCounter(LARGE_INTEGER *lpPerformanceCount);
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int __stdcall GetProcessTimes(
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void *hProcess,
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FILETIME *lpCreationTime,
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FILETIME *lpExitTime,
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FILETIME *lpKernelTime,
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FILETIME *lpUserTime
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);
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#endif
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#if \
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@ -212,13 +234,13 @@ struct PsnipClockTimespec {
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/*** Implementations ***/
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#define PSNIP_CLOCK_NSEC_PER_SEC ((psnip_uint32_t) (1000000000ULL))
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#define PSNIP_CLOCK_NSEC_PER_SEC ((uint32_t) (1000000000ULL))
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#if \
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(defined(PSNIP_CLOCK_CPU_METHOD) && (PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME)) || \
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(defined(PSNIP_CLOCK_WALL_METHOD) && (PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME)) || \
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(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && (PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME))
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PSNIP_CLOCK__FUNCTION psnip_uint32_t
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PSNIP_CLOCK__FUNCTION uint32_t
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psnip_clock__clock_getres (clockid_t clk_id) {
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struct timespec res;
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int r;
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@ -227,7 +249,7 @@ psnip_clock__clock_getres (clockid_t clk_id) {
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if (r != 0)
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return 0;
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return (psnip_uint32_t) (PSNIP_CLOCK_NSEC_PER_SEC / res.tv_nsec);
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return (uint32_t) (PSNIP_CLOCK_NSEC_PER_SEC / res.tv_nsec);
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}
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PSNIP_CLOCK__FUNCTION int
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@ -237,14 +259,14 @@ psnip_clock__clock_gettime (clockid_t clk_id, struct PsnipClockTimespec* res) {
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if (clock_gettime(clk_id, &ts) != 0)
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return -10;
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res->seconds = (psnip_uint64_t) (ts.tv_sec);
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res->nanoseconds = (psnip_uint64_t) (ts.tv_nsec);
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res->seconds = (uint64_t) (ts.tv_sec);
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res->nanoseconds = (uint64_t) (ts.tv_nsec);
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return 0;
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}
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#endif
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PSNIP_CLOCK__FUNCTION psnip_uint32_t
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PSNIP_CLOCK__FUNCTION uint32_t
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psnip_clock_wall_get_precision (void) {
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#if !defined(PSNIP_CLOCK_WALL_METHOD)
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return 0;
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@ -285,7 +307,7 @@ psnip_clock_wall_get_time (struct PsnipClockTimespec* res) {
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return 0;
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}
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PSNIP_CLOCK__FUNCTION psnip_uint32_t
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PSNIP_CLOCK__FUNCTION uint32_t
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psnip_clock_cpu_get_precision (void) {
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#if !defined(PSNIP_CLOCK_CPU_METHOD)
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return 0;
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@ -343,7 +365,7 @@ psnip_clock_cpu_get_time (struct PsnipClockTimespec* res) {
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return 0;
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}
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PSNIP_CLOCK__FUNCTION psnip_uint32_t
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PSNIP_CLOCK__FUNCTION uint32_t
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psnip_clock_monotonic_get_precision (void) {
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#if !defined(PSNIP_CLOCK_MONOTONIC_METHOD)
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return 0;
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@ -353,13 +375,13 @@ psnip_clock_monotonic_get_precision (void) {
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static mach_timebase_info_data_t tbi = { 0, };
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if (tbi.denom == 0)
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mach_timebase_info(&tbi);
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return (psnip_uint32_t) (tbi.numer / tbi.denom);
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return (uint32_t) (tbi.numer / tbi.denom);
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#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64
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return 1000;
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#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_QUERYPERFORMANCECOUNTER
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LARGE_INTEGER Frequency;
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QueryPerformanceFrequency(&Frequency);
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return (psnip_uint32_t) ((Frequency.QuadPart > PSNIP_CLOCK_NSEC_PER_SEC) ? PSNIP_CLOCK_NSEC_PER_SEC : Frequency.QuadPart);
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return (uint32_t) ((Frequency.QuadPart > PSNIP_CLOCK_NSEC_PER_SEC) ? PSNIP_CLOCK_NSEC_PER_SEC : Frequency.QuadPart);
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#else
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return 0;
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#endif
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@ -373,11 +395,11 @@ psnip_clock_monotonic_get_time (struct PsnipClockTimespec* res) {
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#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME
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return psnip_clock__clock_gettime(PSNIP_CLOCK_CLOCK_GETTIME_MONOTONIC, res);
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#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME
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psnip_uint64_t nsec = mach_absolute_time();
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uint64_t nsec = mach_absolute_time();
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static mach_timebase_info_data_t tbi = { 0, };
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if (tbi.denom == 0)
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mach_timebase_info(&tbi);
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nsec *= ((psnip_uint64_t) tbi.numer) / ((psnip_uint64_t) tbi.denom);
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nsec *= ((uint64_t) tbi.numer) / ((uint64_t) tbi.denom);
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res->seconds = nsec / PSNIP_CLOCK_NSEC_PER_SEC;
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res->nanoseconds = nsec % PSNIP_CLOCK_NSEC_PER_SEC;
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#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_QUERYPERFORMANCECOUNTER
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@ -415,7 +437,7 @@ psnip_clock_monotonic_get_time (struct PsnipClockTimespec* res) {
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* Note that different clocks on the same system often have a
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* different precisions.
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*/
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PSNIP_CLOCK__FUNCTION psnip_uint32_t
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PSNIP_CLOCK__FUNCTION uint32_t
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psnip_clock_get_precision (enum PsnipClockType clock_type) {
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switch (clock_type) {
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case PSNIP_CLOCK_TYPE_MONOTONIC:
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@ -448,4 +470,4 @@ psnip_clock_get_time (enum PsnipClockType clock_type, struct PsnipClockTimespec*
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return -1;
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}
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#endif /* !defined(PSNIP_CLOCK_H) */
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#endif /* !defined(PSNIP_CLOCK_H) */
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