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https://github.com/veracrypt/VeraCrypt.git
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59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
/*
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Copyright (c) 2008 TrueCrypt Developers Association. All rights reserved.
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Governed by the TrueCrypt License 3.0 the full text of which is contained in
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the file License.txt included in TrueCrypt binary and source code distribution
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packages.
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*/
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#ifndef TC_HEADER_Platform_FileStream
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#define TC_HEADER_Platform_FileStream
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#include "PlatformBase.h"
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#include "File.h"
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#include "SharedPtr.h"
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#include "Stream.h"
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namespace TrueCrypt
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{
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class FileStream : public Stream
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{
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public:
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FileStream (shared_ptr <File> file) : DataFile (file) { }
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FileStream (File::SystemFileHandleType openFileHandle) { DataFile.reset (new File ()); DataFile->AssignSystemHandle (openFileHandle); }
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virtual ~FileStream () { }
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virtual uint64 Read (const BufferPtr &buffer)
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{
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return DataFile->Read (buffer);
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}
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virtual void ReadCompleteBuffer (const BufferPtr &buffer)
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{
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DataFile->ReadCompleteBuffer (buffer);
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}
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virtual string ReadToEnd ()
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{
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string str;
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vector <char> buffer (4096);
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uint64 len;
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while ((len = DataFile->Read (BufferPtr (reinterpret_cast <byte *> (&buffer[0]), buffer.size()))) > 0)
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str.insert (str.end(), buffer.begin(), buffer.begin() + static_cast <int> (len));
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return str;
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}
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virtual void Write (const ConstBufferPtr &data)
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{
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DataFile->Write (data);
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}
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protected:
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shared_ptr <File> DataFile;
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};
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}
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#endif // TC_HEADER_Platform_FileStream
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