53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
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// GZipFile.h
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// Declares the cGZipFile class representing a RAII wrapper over zlib's GZip file routines
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#pragma once
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#include "zlib.h"
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class cGZipFile
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{
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public:
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enum eMode
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{
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fmRead, // Read-only. If the file doesn't exist, object will not be valid
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fmWrite, // Write-only. If the file already exists, it will be overwritten
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} ;
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cGZipFile(void);
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~cGZipFile();
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/// Opens the file. Returns true if successful. Fails if a file has already been opened through this object.
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bool Open(const AString & a_FileName, eMode a_Mode);
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/// Closes the file, flushing all buffers. This object may be then reused for a different file and / or mode
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void Close(void);
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/// Reads the rest of the file and decompresses it into a_Contents. Returns the number of decompressed bytes, <0 for error
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int ReadRestOfFile(AString & a_Contents);
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/// Writes a_Contents into file, compressing it along the way. Returns true if successful. Multiple writes are supported.
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bool Write(const AString & a_Contents) { return Write(a_Contents.data(), (int)(a_Contents.size())); }
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bool Write(const char * a_Data, int a_Size);
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protected:
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gzFile m_File;
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eMode m_Mode;
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} ;
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