BlobResourceHandle.h [plain text]
#pragma once
#include "FileStreamClient.h"
#include "ResourceHandle.h"
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class AsyncFileStream;
class BlobData;
class FileStream;
class ResourceHandleClient;
class ResourceRequest;
class BlobDataItem;
class BlobResourceHandle final : public FileStreamClient, public ResourceHandle {
public:
static Ref<BlobResourceHandle> createAsync(BlobData*, const ResourceRequest&, ResourceHandleClient*);
static void loadResourceSynchronously(BlobData*, const ResourceRequest&, ResourceError&, ResourceResponse&, Vector<char>& data);
void start();
int readSync(char*, int);
bool aborted() const { return m_aborted; }
enum class Error {
NoError = 0,
NotFoundError = 1,
SecurityError = 2,
RangeError = 3,
NotReadableError = 4,
MethodNotAllowed = 5
};
private:
BlobResourceHandle(BlobData*, const ResourceRequest&, ResourceHandleClient*, bool async);
virtual ~BlobResourceHandle();
void didGetSize(long long) override;
void didOpen(bool) override;
void didRead(int) override;
void cancel() override;
void continueDidReceiveResponse() override;
void doStart();
void getSizeForNext();
void seek();
void consumeData(const char* data, int bytesRead);
void failed(Error);
void readAsync();
void readDataAsync(const BlobDataItem&);
void readFileAsync(const BlobDataItem&);
int readDataSync(const BlobDataItem&, char*, int);
int readFileSync(const BlobDataItem&, char*, int);
void notifyResponse();
void notifyResponseOnSuccess();
void notifyResponseOnError();
void notifyReceiveData(const char*, int);
void notifyFail(Error);
void notifyFinish();
bool erroredOrAborted() const { return m_aborted || m_errorCode != Error::NoError; }
enum { kPositionNotSpecified = -1 };
RefPtr<BlobData> m_blobData;
bool m_async;
std::unique_ptr<AsyncFileStream> m_asyncStream; std::unique_ptr<FileStream> m_stream; Vector<char> m_buffer;
Vector<long long> m_itemLengthList;
Error m_errorCode { Error::NoError };
bool m_aborted { false };
long long m_rangeOffset { kPositionNotSpecified };
long long m_rangeEnd { kPositionNotSpecified };
long long m_rangeSuffixLength { kPositionNotSpecified };
long long m_totalSize { 0 };
long long m_totalRemainingSize { 0 };
long long m_currentItemReadSize { 0 };
unsigned m_sizeItemCount { 0 };
unsigned m_readItemCount { 0 };
bool m_fileOpened { false };
};
}