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Migrate from Windows concurrency to std::future and std::async in UnitConverter

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This commit is contained in:
fwcd 2019-04-05 16:16:59 +02:00
commit e484b3cf0b
3 changed files with 22 additions and 18 deletions
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29
src/CalcManager/UnitConverter.cpp
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@ -5,7 +5,6 @@
#include "Command.h"
#include "UnitConverter.h"
using namespace concurrency;
using namespace std;
using namespace UnitConversionManager;
@ -662,21 +661,25 @@ void UnitConverter::SetViewModelCurrencyCallback(_In_ const shared_ptr<IViewMode
}
}
task<pair<bool, wstring>> UnitConverter::RefreshCurrencyRatios()
future<pair<bool, wstring>> UnitConverter::RefreshCurrencyRatios()
{
shared_ptr<ICurrencyConverterDataLoader> currencyDataLoader = GetCurrencyConverterDataLoader();
return create_task([this, currencyDataLoader]()
future<bool> loadDataResult;
if (currencyDataLoader != nullptr)
{
if (currencyDataLoader != nullptr)
{
return currencyDataLoader->TryLoadDataFromWebOverrideAsync();
}
else
{
return task_from_result(false);
}
}).then([this, currencyDataLoader](bool didLoad)
loadDataResult = currencyDataLoader->TryLoadDataFromWebOverrideAsync();
}
else
{
loadDataResult = async([] { return false; });
}
shared_future<bool> sharedLoadResult = loadDataResult.share();
return async([this, currencyDataLoader, sharedLoadResult]()
{
sharedLoadResult.wait();
bool didLoad = sharedLoadResult.get();
wstring timestamp = L"";
if (currencyDataLoader != nullptr)
{
@ -684,7 +687,7 @@ task<pair<bool, wstring>> UnitConverter::RefreshCurrencyRatios()
}
return make_pair(didLoad, timestamp);
}, task_continuation_context::use_default());
});
}
shared_ptr<ICurrencyConverterDataLoader> UnitConverter::GetCurrencyConverterDataLoader()

10
src/CalcManager/UnitConverter.h
View file

@ -163,9 +163,9 @@ namespace UnitConversionManager
virtual std::pair<std::wstring, std::wstring> GetCurrencyRatioEquality(_In_ const UnitConversionManager::Unit& unit1, _In_ const UnitConversionManager::Unit& unit2) = 0;
virtual std::wstring GetCurrencyTimestamp() = 0;
virtual concurrency::task<bool> TryLoadDataFromCacheAsync() = 0;
virtual concurrency::task<bool> TryLoadDataFromWebAsync() = 0;
virtual concurrency::task<bool> TryLoadDataFromWebOverrideAsync() = 0;
virtual std::future<bool> TryLoadDataFromCacheAsync() = 0;
virtual std::future<bool> TryLoadDataFromWebAsync() = 0;
virtual std::future<bool> TryLoadDataFromWebOverrideAsync() = 0;
};
class IUnitConverterVMCallback
@ -194,7 +194,7 @@ namespace UnitConversionManager
virtual void SendCommand(Command command) = 0;
virtual void SetViewModelCallback(_In_ const std::shared_ptr<IUnitConverterVMCallback>& newCallback) = 0;
virtual void SetViewModelCurrencyCallback(_In_ const std::shared_ptr<IViewModelCurrencyCallback>& newCallback) = 0;
virtual concurrency::task<std::pair<bool, std::wstring>> RefreshCurrencyRatios() = 0;
virtual std::future<std::pair<bool, std::wstring>> RefreshCurrencyRatios() = 0;
};
class UnitConverter : public IUnitConverter, public std::enable_shared_from_this<UnitConverter>
@ -217,7 +217,7 @@ namespace UnitConversionManager
void SendCommand(Command command) override;
void SetViewModelCallback(_In_ const std::shared_ptr<IUnitConverterVMCallback>& newCallback) override;
void SetViewModelCurrencyCallback(_In_ const std::shared_ptr<IViewModelCurrencyCallback>& newCallback) override;
concurrency::task<std::pair<bool, std::wstring>> RefreshCurrencyRatios() override;
std::future<std::pair<bool, std::wstring>> RefreshCurrencyRatios() override;
// IUnitConverter
static std::vector<std::wstring> StringToVector(const std::wstring& w, const wchar_t * delimiter, bool addRemainder = false);

1
src/CalcManager/pch.h
View file

@ -24,6 +24,7 @@
#include <unordered_map>
#include <array>
#include <string_view>
#include <future>
#include "win_data_types_cross_platform.h"