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Connor 2017-09-14 10:19:16 -07:00 committed by GitHub
parent daafe529f3
commit 5bd84506a0
1 changed files with 44 additions and 22 deletions
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66
clock.h
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@ -6,15 +6,13 @@
* copyright and related or neighboring rights to this code. For
* details, see the Creative Commons Zero 1.0 Universal license at
* https://creativecommons.org/publicdomain/zero/1.0/
*
* Modified by Connor Olding, 2017
*/
#if !defined(PSNIP_CLOCK_H)
#define PSNIP_CLOCK_H
#if !defined(psnip_uint64_t)
# include "../exact-int/exact-int.h"
#endif
#if !defined(PSNIP_CLOCK_STATIC_INLINE)
# if defined(__GNUC__)
# define PSNIP_CLOCK__COMPILER_ATTRIBUTES __attribute__((__unused__))
@ -42,8 +40,8 @@ enum PsnipClockType {
};
struct PsnipClockTimespec {
psnip_uint64_t seconds;
psnip_uint64_t nanoseconds;
uint64_t seconds;
uint64_t nanoseconds;
};
/* Methods we support: */
@ -102,7 +100,7 @@ struct PsnipClockTimespec {
# endif
#endif
#if defined(__MACH__) && !defined(__gnu_hurd__)
#if defined(__MACH__)
# if !defined(PSNIP_CLOCK_MONOTONIC_METHOD)
# define PSNIP_CLOCK_MONOTONIC_METHOD PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME
# endif
@ -190,7 +188,31 @@ struct PsnipClockTimespec {
(defined(PSNIP_CLOCK_CPU_METHOD) && (PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && (PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && (PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64))
# include <windows.h>
typedef struct _FILETIME {
uint32_t dwLowDateTime;
uint32_t dwHighDateTime;
} FILETIME;
typedef union _LARGE_INTEGER {
struct {
uint32_t LowPart;
int32_t HighPart;
};
struct {
uint32_t LowPart;
int32_t HighPart;
} u;
int64_t QuadPart;
} LARGE_INTEGER;
void * __stdcall GetCurrentProcess(void);
int __stdcall QueryPerformanceFrequency(LARGE_INTEGER *lpFrequency);
int __stdcall QueryPerformanceCounter(LARGE_INTEGER *lpPerformanceCount);
int __stdcall GetProcessTimes(
void *hProcess,
FILETIME *lpCreationTime,
FILETIME *lpExitTime,
FILETIME *lpKernelTime,
FILETIME *lpUserTime
);
#endif
#if \
@ -212,13 +234,13 @@ struct PsnipClockTimespec {
/*** Implementations ***/
#define PSNIP_CLOCK_NSEC_PER_SEC ((psnip_uint32_t) (1000000000ULL))
#define PSNIP_CLOCK_NSEC_PER_SEC ((uint32_t) (1000000000ULL))
#if \
(defined(PSNIP_CLOCK_CPU_METHOD) && (PSNIP_CLOCK_CPU_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME)) || \
(defined(PSNIP_CLOCK_WALL_METHOD) && (PSNIP_CLOCK_WALL_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME)) || \
(defined(PSNIP_CLOCK_MONOTONIC_METHOD) && (PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME))
PSNIP_CLOCK__FUNCTION psnip_uint32_t
PSNIP_CLOCK__FUNCTION uint32_t
psnip_clock__clock_getres (clockid_t clk_id) {
struct timespec res;
int r;
@ -227,7 +249,7 @@ psnip_clock__clock_getres (clockid_t clk_id) {
if (r != 0)
return 0;
return (psnip_uint32_t) (PSNIP_CLOCK_NSEC_PER_SEC / res.tv_nsec);
return (uint32_t) (PSNIP_CLOCK_NSEC_PER_SEC / res.tv_nsec);
}
PSNIP_CLOCK__FUNCTION int
@ -237,14 +259,14 @@ psnip_clock__clock_gettime (clockid_t clk_id, struct PsnipClockTimespec* res) {
if (clock_gettime(clk_id, &ts) != 0)
return -10;
res->seconds = (psnip_uint64_t) (ts.tv_sec);
res->nanoseconds = (psnip_uint64_t) (ts.tv_nsec);
res->seconds = (uint64_t) (ts.tv_sec);
res->nanoseconds = (uint64_t) (ts.tv_nsec);
return 0;
}
#endif
PSNIP_CLOCK__FUNCTION psnip_uint32_t
PSNIP_CLOCK__FUNCTION uint32_t
psnip_clock_wall_get_precision (void) {
#if !defined(PSNIP_CLOCK_WALL_METHOD)
return 0;
@ -285,7 +307,7 @@ psnip_clock_wall_get_time (struct PsnipClockTimespec* res) {
return 0;
}
PSNIP_CLOCK__FUNCTION psnip_uint32_t
PSNIP_CLOCK__FUNCTION uint32_t
psnip_clock_cpu_get_precision (void) {
#if !defined(PSNIP_CLOCK_CPU_METHOD)
return 0;
@ -343,7 +365,7 @@ psnip_clock_cpu_get_time (struct PsnipClockTimespec* res) {
return 0;
}
PSNIP_CLOCK__FUNCTION psnip_uint32_t
PSNIP_CLOCK__FUNCTION uint32_t
psnip_clock_monotonic_get_precision (void) {
#if !defined(PSNIP_CLOCK_MONOTONIC_METHOD)
return 0;
@ -353,13 +375,13 @@ psnip_clock_monotonic_get_precision (void) {
static mach_timebase_info_data_t tbi = { 0, };
if (tbi.denom == 0)
mach_timebase_info(&tbi);
return (psnip_uint32_t) (tbi.numer / tbi.denom);
return (uint32_t) (tbi.numer / tbi.denom);
#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_GETTICKCOUNT64
return 1000;
#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_QUERYPERFORMANCECOUNTER
LARGE_INTEGER Frequency;
QueryPerformanceFrequency(&Frequency);
return (psnip_uint32_t) ((Frequency.QuadPart > PSNIP_CLOCK_NSEC_PER_SEC) ? PSNIP_CLOCK_NSEC_PER_SEC : Frequency.QuadPart);
return (uint32_t) ((Frequency.QuadPart > PSNIP_CLOCK_NSEC_PER_SEC) ? PSNIP_CLOCK_NSEC_PER_SEC : Frequency.QuadPart);
#else
return 0;
#endif
@ -373,11 +395,11 @@ psnip_clock_monotonic_get_time (struct PsnipClockTimespec* res) {
#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_CLOCK_GETTIME
return psnip_clock__clock_gettime(PSNIP_CLOCK_CLOCK_GETTIME_MONOTONIC, res);
#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_MACH_ABSOLUTE_TIME
psnip_uint64_t nsec = mach_absolute_time();
uint64_t nsec = mach_absolute_time();
static mach_timebase_info_data_t tbi = { 0, };
if (tbi.denom == 0)
mach_timebase_info(&tbi);
nsec *= ((psnip_uint64_t) tbi.numer) / ((psnip_uint64_t) tbi.denom);
nsec *= ((uint64_t) tbi.numer) / ((uint64_t) tbi.denom);
res->seconds = nsec / PSNIP_CLOCK_NSEC_PER_SEC;
res->nanoseconds = nsec % PSNIP_CLOCK_NSEC_PER_SEC;
#elif defined(PSNIP_CLOCK_MONOTONIC_METHOD) && PSNIP_CLOCK_MONOTONIC_METHOD == PSNIP_CLOCK_METHOD_QUERYPERFORMANCECOUNTER
@ -415,7 +437,7 @@ psnip_clock_monotonic_get_time (struct PsnipClockTimespec* res) {
* Note that different clocks on the same system often have a
* different precisions.
*/
PSNIP_CLOCK__FUNCTION psnip_uint32_t
PSNIP_CLOCK__FUNCTION uint32_t
psnip_clock_get_precision (enum PsnipClockType clock_type) {
switch (clock_type) {
case PSNIP_CLOCK_TYPE_MONOTONIC:
@ -448,4 +470,4 @@ psnip_clock_get_time (enum PsnipClockType clock_type, struct PsnipClockTimespec*
return -1;
}
#endif /* !defined(PSNIP_CLOCK_H) */
#endif /* !defined(PSNIP_CLOCK_H) */