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kernel: preserve microsecond wall-clock resolution

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Extracted from 3db2b3c5c5e1a26a861df7ebcacd9ccb8c484420 in KytyPS5/KytyPS5#147.
This commit is contained in:
Stefanos Costa
2026-08-01 22:59:51 +03:00
committed by nmzik
parent 66f640527d
commit 0b6bf01b36
2 changed files with 13 additions and 16 deletions
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src/kernel/pthread.cpp
+6 -2
View File
@@ -3886,8 +3886,12 @@ int KYTY_SYSV_ABI KernelGettimeofday(KernelTimeval* tp) {
tp->tv_sec = static_cast<int64_t>(ticks / 1000000); tp->tv_sec = static_cast<int64_t>(ticks / 1000000);
tp->tv_usec = static_cast<int64_t>(ticks % 1000000); tp->tv_usec = static_cast<int64_t>(ticks % 1000000);
#else #else
auto dt = Common::DateTime::FromSystemUTC(); struct timespec ts {};
sec_to_timeval(tp, dt.ToUnix()); result = ::clock_gettime(CLOCK_REALTIME, &ts);
if (result == 0) {
tp->tv_sec = static_cast<int64_t>(ts.tv_sec);
tp->tv_usec = static_cast<int64_t>(ts.tv_nsec / 1000);
}
#endif #endif
if (result == 0) { if (result == 0) {
src/libs/libRtc.cpp
+7 -14
View File
@@ -4,6 +4,7 @@
#include "libs/libs.h" #include "libs/libs.h"
#include "loader/symbolDatabase.h" #include "loader/symbolDatabase.h"
#include <chrono>
#include <cstdint> #include <cstdint>
#include <cstdio> #include <cstdio>
#include <limits> #include <limits>
@@ -247,20 +248,12 @@ static int KYTY_SYSV_ABI RtcGetCurrentTick(RtcTick* tick) {
return RTC_ERROR_DATETIME_UNINITIALIZED; return RTC_ERROR_DATETIME_UNINITIALIZED;
} }
const auto now = Common::DateTime::FromSystemUTC(); const auto now_us =
const auto date = now.GetDate(); static_cast<uint64_t>(std::chrono::duration_cast<std::chrono::microseconds>(
const auto tod = now.GetTime(); std::chrono::system_clock::now().time_since_epoch())
.count());
RtcDateTime time {}; tick->tick = RTC_UNIX_EPOCH_TICKS + now_us;
time.year = static_cast<uint16_t>(date.Year()); return OK;
time.month = static_cast<uint16_t>(date.Month());
time.day = static_cast<uint16_t>(date.Day());
time.hour = static_cast<uint16_t>(tod.Hour24());
time.minute = static_cast<uint16_t>(tod.Minute());
time.second = static_cast<uint16_t>(tod.Second());
time.microsecond = static_cast<uint32_t>(tod.Msec() * 1000);
return RtcGetTick(&time, tick);
} }
static int KYTY_SYSV_ABI RtcGetCurrentNetworkTick(RtcTick* tick) { static int KYTY_SYSV_ABI RtcGetCurrentNetworkTick(RtcTick* tick) {