mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-29 21:56:04 +00:00
78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stratosphere.hpp>
|
|
#include "lm_time_util.hpp"
|
|
|
|
namespace ams::lm::srv {
|
|
|
|
namespace {
|
|
|
|
constinit std::atomic_bool g_is_time_invalid = false;
|
|
|
|
constinit time::PosixTime InvalidPosixTime = { .value = 0 };
|
|
|
|
constexpr bool IsValidPosixTime(time::PosixTime time) {
|
|
return time.value > 0;
|
|
}
|
|
|
|
void EnsureTimeInitialized() {
|
|
static constinit os::SdkMutex g_time_initialized_mutex;
|
|
static constinit bool g_time_initialized = false;
|
|
|
|
if (AMS_UNLIKELY(!g_time_initialized)) {
|
|
std::scoped_lock lk(g_time_initialized_mutex);
|
|
|
|
if (AMS_LIKELY(!g_time_initialized)) {
|
|
R_ABORT_UNLESS(time::Initialize());
|
|
g_time_initialized = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
time::PosixTime GetCurrentTime() {
|
|
/* Ensure that we can use time services. */
|
|
EnsureTimeInitialized();
|
|
|
|
/* Repeatedly try to get a valid time. */
|
|
for (auto wait_seconds = 1; wait_seconds <= 8; wait_seconds *= 2) {
|
|
/* Get the standard user system clock time. */
|
|
time::PosixTime current_time{};
|
|
if (R_FAILED(time::StandardUserSystemClock::GetCurrentTime(std::addressof(current_time)))) {
|
|
return InvalidPosixTime;
|
|
}
|
|
|
|
/* If the time is valid, return it. */
|
|
if (IsValidPosixTime(current_time)) {
|
|
return current_time;
|
|
}
|
|
|
|
/* Check if we've failed to get a time in the past. */
|
|
if (g_is_time_invalid) {
|
|
return InvalidPosixTime;
|
|
}
|
|
|
|
/* Wait a bit before trying again. */
|
|
os::SleepThread(TimeSpan::FromSeconds(wait_seconds));
|
|
}
|
|
|
|
/* We failed to get a valid time. */
|
|
g_is_time_invalid = true;
|
|
return InvalidPosixTime;
|
|
}
|
|
|
|
}
|