common: Add module to get the current time zone.

This commit is contained in:
bunnei 2020-05-11 17:51:26 -04:00
parent 988e42a3f5
commit 33441fa728
3 changed files with 68 additions and 0 deletions

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@ -148,6 +148,8 @@ add_library(common STATIC
thread.h thread.h
thread_queue_list.h thread_queue_list.h
threadsafe_queue.h threadsafe_queue.h
time_zone.cpp
time_zone.h
timer.cpp timer.cpp
timer.h timer.h
uint128.cpp uint128.cpp

49
src/common/time_zone.cpp Normal file
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@ -0,0 +1,49 @@
// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <chrono>
#include <iomanip>
#include <sstream>
#include "common/logging/log.h"
#include "common/time_zone.h"
namespace Common::TimeZone {
std::string GetDefaultTimeZone() {
return "GMT";
}
static std::string GetOsTimeZoneOffset() {
const std::time_t t{std::time(nullptr)};
const std::tm tm{*std::localtime(&t)};
std::stringstream ss;
ss << std::put_time(&tm, "%z"); // Get the current timezone offset, e.g. "-400", as a string
return ss.str();
}
static int ConvertOsTimeZoneOffsetToInt(const std::string& timezone) {
try {
return std::stoi(timezone);
} catch (const std::invalid_argument&) {
LOG_CRITICAL(Common, "invalid_argument with {}!", timezone);
return 0;
} catch (const std::out_of_range&) {
LOG_CRITICAL(Common, "out_of_range with {}!", timezone);
return 0;
}
}
int GetCurrentOffsetSeconds() {
const int offset{ConvertOsTimeZoneOffsetToInt(GetOsTimeZoneOffset())};
int seconds{(offset / 100) * 60 * 60}; // Convert hour component to seconds
seconds += (offset % 100) * 60; // Convert minute component to seconds
return seconds;
}
} // namespace Common::TimeZone

17
src/common/time_zone.h Normal file
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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <string>
namespace Common::TimeZone {
/// Gets the default timezone, i.e. "GMT"
std::string GetDefaultTimeZone();
/// Gets the offset of the current timezone (from the default), in seconds
int GetCurrentOffsetSeconds();
} // namespace Common::TimeZone