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32 #ifndef AsyncFileStream_h
33 #define AsyncFileStream_h
37 #include <wtf/Forward.h>
38 #include <wtf/RefCounted.h>
39 #include <wtf/RefPtr.h>
43 class FileStreamClient;
47 class AsyncFileStream : public RefCounted<AsyncFileStream> {
49 static PassRefPtr<AsyncFileStream> create(FileStreamClient*);
52 void getSize(const String& path, double expectedModificationTime);
53 void openForRead(const String& path, long long offset, long long length);
54 void openForWrite(const String& path);
56 void read(char* buffer, int length);
57 void write(const KURL& blobURL, long long position, int length);
58 void truncate(long long position);
60 // Stops the proxy and schedules it to be destructed. All the pending tasks will be aborted and the file stream will be closed.
61 // Note: the caller should deref the instance immediately after calling stop().
64 FileStreamClient* client() const { return m_client; }
65 void setClient(FileStreamClient* client) { m_client = client; }
68 AsyncFileStream(FileStreamClient*);
70 // Called on File thread.
71 void startOnFileThread();
72 void stopOnFileThread();
73 void getSizeOnFileThread(const String& path, double expectedModificationTime);
74 void openForReadOnFileThread(const String& path, long long offset, long long length);
75 void openForWriteOnFileThread(const String& path);
76 void closeOnFileThread();
77 void readOnFileThread(char* buffer, int length);
78 void writeOnFileThread(const KURL& blobURL, long long position, int length);
79 void truncateOnFileThread(long long position);
81 RefPtr<FileStream> m_stream;
83 FileStreamClient* m_client;
86 } // namespace WebCore
88 #endif // ENABLE(BLOB)
90 #endif // AsyncFileStream_h