uint64_t uv__hrtime(void) {
uint64_t G = 1000000000;
timebasestruct_t t;
read_wall_time(&t, TIMEBASE_SZ);
time_base_to_time(&t, TIMEBASE_SZ);
return (uint64_t) t.tb_high * G + t.tb_low;
}
/*
* Get an arbitrary timer value of the highest possible resolution
*
* The timer value is added as random noise to the additional data,
* which is not considered a trusted entropy sourec, so any result
* is acceptable.
*/
static uint64_t get_timer_bits(void)
{
uint64_t res = OPENSSL_rdtsc();
if (res != 0)
return res;
# if defined(__sun) || defined(__hpux)
return gethrtime();
# elif defined(_AIX)
{
timebasestruct_t t;
read_wall_time(&t, TIMEBASE_SZ);
return TWO32TO64(t.tb_high, t.tb_low);
}
# elif defined(OSSL_POSIX_TIMER_OKAY)
{
struct timespec ts;
# ifdef CLOCK_BOOTTIME
# define CLOCK_TYPE CLOCK_BOOTTIME
# elif defined(_POSIX_MONOTONIC_CLOCK)
# define CLOCK_TYPE CLOCK_MONOTONIC
# else
# define CLOCK_TYPE CLOCK_REALTIME
# endif
if (clock_gettime(CLOCK_TYPE, &ts) == 0)
return TWO32TO64(ts.tv_sec, ts.tv_nsec);
}
# endif
# if defined(__unix__) \
|| (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L)
{
struct timeval tv;
if (gettimeofday(&tv, NULL) == 0)
return TWO32TO64(tv.tv_sec, tv.tv_usec);
}
# endif
return time(NULL);
}
/*
* Find a suitable source of time. Start with the highest resolution source
* and work down to the slower ones. This is added as additional data and
* isn't counted as randomness, so any result is acceptable.
*
* Returns 0 when we weren't able to find any time source
*/
static uint64_t get_timer_bits(void)
{
uint64_t res = OPENSSL_rdtsc();
if (res != 0)
return res;
#if defined(_WIN32)
{
LARGE_INTEGER t;
FILETIME ft;
if (QueryPerformanceCounter(&t) != 0)
return t.QuadPart;
GetSystemTimeAsFileTime(&ft);
return TWO32TO64(ft.dwHighDateTime, ft.dwLowDateTime);
}
#elif defined(__sun) || defined(__hpux)
return gethrtime();
#elif defined(_AIX)
{
timebasestruct_t t;
read_wall_time(&t, TIMEBASE_SZ);
return TWO32TO64(t.tb_high, t.tb_low);
}
#else
# if defined(OSSL_POSIX_TIMER_OKAY)
{
struct timespec ts;
clockid_t cid;
# ifdef CLOCK_BOOTTIME
cid = CLOCK_BOOTTIME;
# elif defined(_POSIX_MONOTONIC_CLOCK)
cid = CLOCK_MONOTONIC;
# else
cid = CLOCK_REALTIME;
# endif
if (clock_gettime(cid, &ts) == 0)
return TWO32TO64(ts.tv_sec, ts.tv_nsec);
}
# endif
# if defined(__unix__) \
|| (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L)
{
struct timeval tv;
if (gettimeofday(&tv, NULL) == 0)
return TWO32TO64(tv.tv_sec, tv.tv_usec);
}
# endif
{
time_t t = time(NULL);
if (t == (time_t)-1)
return 0;
return t;
}
#endif
}
static zend_always_inline php_hrtime_t _timer_current(void)
{/*{{{*/
#if PHP_HRTIME_PLATFORM_WINDOWS
LARGE_INTEGER lt = {0};
QueryPerformanceCounter(<);
return (php_hrtime_t)((php_hrtime_t)lt.QuadPart * _timer_scale);
#elif PHP_HRTIME_PLATFORM_APPLE
return (php_hrtime_t)mach_absolute_time() * _timerlib_info.numer / _timerlib_info.denom;
#elif PHP_HRTIME_PLATFORM_POSIX
struct timespec ts = { .tv_sec = 0, .tv_nsec = 0 };
if (0 == clock_gettime(CLOCK_MONOTONIC, &ts)) {
return ((php_hrtime_t) ts.tv_sec * (php_hrtime_t)NANO_IN_SEC) + ts.tv_nsec;
}
return 0;
#elif PHP_HRTIME_PLATFORM_HPUX
return (php_hrtime_t) gethrtime();
#elif PHP_HRTIME_PLATFORM_AIX
timebasestruct_t t;
read_wall_time(&t, TIMEBASE_SZ);
time_base_to_time(&t, TIMEBASE_SZ);
return (php_hrtime_t) t.tb_high * (php_hrtime_t)NANO_IN_SEC + t.tb_low;
#else
return 0;
#endif
}/*}}}*/
#if ZEND_ENABLE_ZVAL_LONG64
#define PHP_RETURN_HRTIME(t) RETURN_LONG((zend_long)t)
#else
#ifdef _WIN32
# define HRTIME_U64A(i, s, len) _ui64toa_s(i, s, len, 10)
#else
# define HRTIME_U64A(i, s, len) \
do { \
int st = snprintf(s, len, "%llu", i); \
s[st] = '\0'; \
} while (0)
#endif
#define PHP_RETURN_HRTIME(t) do { \
char _a[ZEND_LTOA_BUF_LEN]; \
double _d; \
HRTIME_U64A(t, _a, ZEND_LTOA_BUF_LEN); \
_d = zend_strtod(_a, NULL); \
RETURN_DOUBLE(_d); \
} while (0)
#endif
/* {{{ proto mixed hrtime([bool get_as_number = false])
Returns an array of integers in form [seconds, nanoseconds] counted
from an arbitrary point in time. If an optional boolean argument is
passed, returns an integer on 64-bit platforms or float on 32-bit
containing the current high-resolution time in nanoseconds. The
delivered timestamp is monotonic and can not be adjusted. */
PHP_FUNCTION(hrtime)
{
#if HRTIME_AVAILABLE
zend_bool get_as_num = 0;
php_hrtime_t t = _timer_current();
ZEND_PARSE_PARAMETERS_START(0, 1)
Z_PARAM_OPTIONAL
Z_PARAM_BOOL(get_as_num)
ZEND_PARSE_PARAMETERS_END();
if (UNEXPECTED(get_as_num)) {
PHP_RETURN_HRTIME(t);
} else {
array_init_size(return_value, 2);
zend_hash_real_init_packed(Z_ARRVAL_P(return_value));
add_next_index_long(return_value, (zend_long)(t / (php_hrtime_t)NANO_IN_SEC));
add_next_index_long(return_value, (zend_long)(t % (php_hrtime_t)NANO_IN_SEC));
}
#else
RETURN_FALSE
#endif
}
/* }}} */
PHPAPI php_hrtime_t php_hrtime_current(void)
{/*{{{*/
return _timer_current();
}/*}}}*/
