ktl::Awaitable<KBuffer::SPtr> GetFileBytesAsync(__in KStringView const & name)
{
KBlockFile::SPtr fileSPtr = nullptr;
ktl::io::KFileStream::SPtr streamSPtr = nullptr;
ktl::io::KFileStream::Create(streamSPtr, GetAllocator());
co_await OpenFileAsync(name, KBlockFile::CreateDisposition::eOpenExisting, *streamSPtr, fileSPtr);
KBuffer::SPtr fileBytes = co_await GetFileBytesAsync(*streamSPtr);
co_await streamSPtr->CloseAsync();
fileSPtr->Close();
co_return fileBytes;
}
ktl::Awaitable<void> WriteFileBytesAsync(
__in KStringView const & name,
__in KBuffer & bytes)
{
KBlockFile::SPtr fileSPtr = nullptr;
ktl::io::KFileStream::SPtr streamSPtr = nullptr;
ktl::io::KFileStream::Create(streamSPtr, GetAllocator());
co_await OpenFileAsync(name, KBlockFile::CreateDisposition::eCreateAlways, *streamSPtr, fileSPtr);
co_await WriteFileBytesAsync(*streamSPtr, bytes);
co_await streamSPtr->CloseAsync();
fileSPtr->Close();
}
void DesktopFileHandle::ReadTextAsync(const std::function<void(std::string)>& callback)
{
std::function<void(void)> openCallback = [&]() {
std::lock_guard<std::recursive_mutex> recLock(mMutex);
std::string str((std::istreambuf_iterator<char>(mFile)), (std::istreambuf_iterator<char>()));
callback(str);
};
bool open = false;
{
std::lock_guard<std::recursive_mutex> recLock(mMutex);
open = bIsOpen;
}
if (!open)
OpenFileAsync(openCallback, FileMode::READ_ONLY);
else
std::future<void> fut = std::async(openCallback);
}