kev/Drawer/Module/GeoSigmaDraw/InterfaceStream.cpp

#include "stdafx.h"
#include "StreamManager.h"
#include "NativeStream.h"

// ---------------------------------------------------------------------------
// Stream 导出接口，供 C# P/Invoke 调用（真流式：Open 时指定 pView+importType，Write 即边解析边导入）
// ---------------------------------------------------------------------------

extern "C" __declspec(dllexport)
int64_t Stream_Open(CSigmaView* pView, int importType, int* outError)
{
	if (outError == nullptr)
	{
		return -1;
	}

	StreamError err = StreamError::STREAM_OK;
	int64_t handle = StreamManager::Instance().Open(pView, importType, err);
	*outError = static_cast<int>(err);
	return handle;
}

extern "C" __declspec(dllexport) int Stream_Write(int64_t handle, const void* data, int size)
{
	if (data == nullptr || size < 0)
	{
		return static_cast<int>(StreamError::STREAM_WRITE_FAILED);
	}
	StreamError err = StreamManager::Instance().Write(handle, data, static_cast<size_t>(size));
	return static_cast<int>(err);
}

extern "C" __declspec(dllexport) int Stream_Close(int64_t handle)
{
	StreamError err = StreamManager::Instance().Close(handle);
	return static_cast<int>(err);
}