shadPS4/src/core/libraries/kernel/time_management.cpp

235 lines
7.5 KiB
C++

// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <thread>
#include "common/assert.h"
#include "common/native_clock.h"
#include "core/libraries/error_codes.h"
#include "core/libraries/kernel/time_management.h"
#include "core/libraries/libs.h"
#ifdef _WIN64
#include <pthread_time.h>
#include <windows.h>
// http://stackoverflow.com/a/31411628/4725495
static u32(__stdcall* NtDelayExecution)(BOOL Alertable, PLARGE_INTEGER DelayInterval) =
(u32(__stdcall*)(BOOL, PLARGE_INTEGER))GetProcAddress(GetModuleHandleA("ntdll.dll"),
"NtDelayExecution");
#else
#include <time.h>
#include <unistd.h>
#endif
namespace Libraries::Kernel {
static u64 initial_ptc;
static std::unique_ptr<Common::NativeClock> clock;
u64 PS4_SYSV_ABI sceKernelGetTscFrequency() {
return clock->GetTscFrequency();
}
u64 PS4_SYSV_ABI sceKernelGetProcessTime() {
return clock->GetProcessTimeUS();
}
u64 PS4_SYSV_ABI sceKernelGetProcessTimeCounter() {
return clock->GetUptime() - initial_ptc;
}
u64 PS4_SYSV_ABI sceKernelGetProcessTimeCounterFrequency() {
return clock->GetTscFrequency();
}
u64 PS4_SYSV_ABI sceKernelReadTsc() {
return clock->GetUptime();
}
int PS4_SYSV_ABI sceKernelUsleep(u32 microseconds) {
#ifdef _WIN64
if (microseconds < 1000u) {
LARGE_INTEGER interval{
.QuadPart = -1 * (microseconds * 10u),
};
NtDelayExecution(FALSE, &interval);
} else {
std::this_thread::sleep_for(std::chrono::microseconds(microseconds));
}
#else
usleep(microseconds);
#endif
return 0;
}
int PS4_SYSV_ABI posix_usleep(u32 microseconds) {
return sceKernelUsleep(microseconds);
}
u32 PS4_SYSV_ABI sceKernelSleep(u32 seconds) {
std::this_thread::sleep_for(std::chrono::seconds(seconds));
return 0;
}
int PS4_SYSV_ABI sceKernelClockGettime(s32 clock_id, OrbisKernelTimespec* tp) {
if (tp == nullptr) {
return SCE_KERNEL_ERROR_EFAULT;
}
clockid_t pclock_id = CLOCK_REALTIME;
switch (clock_id) {
case ORBIS_CLOCK_REALTIME:
case ORBIS_CLOCK_REALTIME_PRECISE:
case ORBIS_CLOCK_REALTIME_FAST:
pclock_id = CLOCK_REALTIME;
break;
case ORBIS_CLOCK_SECOND:
case ORBIS_CLOCK_MONOTONIC:
case ORBIS_CLOCK_MONOTONIC_PRECISE:
case ORBIS_CLOCK_MONOTONIC_FAST:
pclock_id = CLOCK_MONOTONIC;
break;
default:
UNREACHABLE();
}
timespec t{};
int result = clock_gettime(pclock_id, &t);
tp->tv_sec = t.tv_sec;
tp->tv_nsec = t.tv_nsec;
if (result == 0) {
return SCE_OK;
}
return SCE_KERNEL_ERROR_EINVAL;
}
int PS4_SYSV_ABI posix_clock_gettime(s32 clock_id, OrbisKernelTimespec* time) {
int result = sceKernelClockGettime(clock_id, time);
if (result < 0) {
UNREACHABLE(); // TODO return posix error code
}
return result;
}
int PS4_SYSV_ABI posix_nanosleep(const OrbisKernelTimespec* rqtp, OrbisKernelTimespec* rmtp) {
const auto* request = reinterpret_cast<const timespec*>(rqtp);
auto* remain = reinterpret_cast<timespec*>(rmtp);
return nanosleep(request, remain);
}
int PS4_SYSV_ABI sceKernelNanosleep(const OrbisKernelTimespec* rqtp, OrbisKernelTimespec* rmtp) {
if (!rqtp || !rmtp) {
return SCE_KERNEL_ERROR_EFAULT;
}
if (rqtp->tv_sec < 0 || rqtp->tv_nsec < 0) {
return SCE_KERNEL_ERROR_EINVAL;
}
return posix_nanosleep(rqtp, rmtp);
}
int PS4_SYSV_ABI sceKernelGettimeofday(OrbisKernelTimeval* tp) {
if (!tp) {
return ORBIS_KERNEL_ERROR_EFAULT;
}
auto now = std::chrono::system_clock::now();
auto duration = now.time_since_epoch();
auto seconds = std::chrono::duration_cast<std::chrono::seconds>(duration);
auto microsecs = std::chrono::duration_cast<std::chrono::microseconds>(duration - seconds);
tp->tv_sec = seconds.count();
tp->tv_usec = microsecs.count();
return ORBIS_OK;
}
int PS4_SYSV_ABI gettimeofday(OrbisKernelTimeval* tp, OrbisKernelTimezone* tz) {
// FreeBSD docs mention that the kernel generally does not track these values
// and they are usually returned as zero.
if (tz) {
tz->tz_minuteswest = 0;
tz->tz_dsttime = 0;
}
return sceKernelGettimeofday(tp);
}
s32 PS4_SYSV_ABI sceKernelGettimezone(OrbisKernelTimezone* tz) {
#ifdef _WIN64
ASSERT(tz);
static int tzflag = 0;
if (!tzflag) {
_tzset();
tzflag++;
}
tz->tz_minuteswest = _timezone / 60;
tz->tz_dsttime = _daylight;
#else
struct timezone tzz;
struct timeval tv;
gettimeofday(&tv, &tzz);
tz->tz_dsttime = tzz.tz_dsttime;
tz->tz_minuteswest = tzz.tz_minuteswest;
#endif
return ORBIS_OK;
}
int PS4_SYSV_ABI posix_clock_getres(u32 clock_id, OrbisKernelTimespec* res) {
if (res == nullptr) {
return SCE_KERNEL_ERROR_EFAULT;
}
clockid_t pclock_id = CLOCK_REALTIME;
switch (clock_id) {
case ORBIS_CLOCK_REALTIME:
case ORBIS_CLOCK_REALTIME_PRECISE:
case ORBIS_CLOCK_REALTIME_FAST:
pclock_id = CLOCK_REALTIME;
break;
case ORBIS_CLOCK_SECOND:
case ORBIS_CLOCK_MONOTONIC:
case ORBIS_CLOCK_MONOTONIC_PRECISE:
case ORBIS_CLOCK_MONOTONIC_FAST:
pclock_id = CLOCK_MONOTONIC;
break;
default:
UNREACHABLE();
}
timespec t{};
int result = clock_getres(pclock_id, &t);
res->tv_sec = t.tv_sec;
res->tv_nsec = t.tv_nsec;
if (result == 0) {
return SCE_OK;
}
return SCE_KERNEL_ERROR_EINVAL;
}
void timeSymbolsRegister(Core::Loader::SymbolsResolver* sym) {
clock = std::make_unique<Common::NativeClock>();
initial_ptc = clock->GetUptime();
LIB_FUNCTION("4J2sUJmuHZQ", "libkernel", 1, "libkernel", 1, 1, sceKernelGetProcessTime);
LIB_FUNCTION("fgxnMeTNUtY", "libkernel", 1, "libkernel", 1, 1, sceKernelGetProcessTimeCounter);
LIB_FUNCTION("BNowx2l588E", "libkernel", 1, "libkernel", 1, 1,
sceKernelGetProcessTimeCounterFrequency);
LIB_FUNCTION("-2IRUCO--PM", "libkernel", 1, "libkernel", 1, 1, sceKernelReadTsc);
LIB_FUNCTION("1j3S3n-tTW4", "libkernel", 1, "libkernel", 1, 1, sceKernelGetTscFrequency);
LIB_FUNCTION("ejekcaNQNq0", "libkernel", 1, "libkernel", 1, 1, sceKernelGettimeofday);
LIB_FUNCTION("n88vx3C5nW8", "libkernel", 1, "libkernel", 1, 1, gettimeofday);
LIB_FUNCTION("n88vx3C5nW8", "libScePosix", 1, "libkernel", 1, 1, gettimeofday);
LIB_FUNCTION("QvsZxomvUHs", "libkernel", 1, "libkernel", 1, 1, sceKernelNanosleep);
LIB_FUNCTION("1jfXLRVzisc", "libkernel", 1, "libkernel", 1, 1, sceKernelUsleep);
LIB_FUNCTION("QcteRwbsnV0", "libkernel", 1, "libkernel", 1, 1, posix_usleep);
LIB_FUNCTION("QcteRwbsnV0", "libScePosix", 1, "libkernel", 1, 1, posix_usleep);
LIB_FUNCTION("-ZR+hG7aDHw", "libkernel", 1, "libkernel", 1, 1, sceKernelSleep);
LIB_FUNCTION("0wu33hunNdE", "libScePosix", 1, "libkernel", 1, 1, sceKernelSleep);
LIB_FUNCTION("yS8U2TGCe1A", "libkernel", 1, "libkernel", 1, 1, posix_nanosleep);
LIB_FUNCTION("yS8U2TGCe1A", "libScePosix", 1, "libkernel", 1, 1, posix_nanosleep);
LIB_FUNCTION("QBi7HCK03hw", "libkernel", 1, "libkernel", 1, 1, sceKernelClockGettime);
LIB_FUNCTION("kOcnerypnQA", "libkernel", 1, "libkernel", 1, 1, sceKernelGettimezone);
LIB_FUNCTION("lLMT9vJAck0", "libkernel", 1, "libkernel", 1, 1, posix_clock_gettime);
LIB_FUNCTION("lLMT9vJAck0", "libScePosix", 1, "libkernel", 1, 1, posix_clock_gettime);
LIB_FUNCTION("smIj7eqzZE8", "libScePosix", 1, "libkernel", 1, 1, posix_clock_getres);
}
} // namespace Libraries::Kernel