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Diffstat (limited to '')
-rw-r--r-- | src/OSSupport/GZipFile.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/OSSupport/GZipFile.h b/src/OSSupport/GZipFile.h new file mode 100644 index 000000000..dcc171a2a --- /dev/null +++ b/src/OSSupport/GZipFile.h @@ -0,0 +1,52 @@ + +// GZipFile.h + +// Declares the cGZipFile class representing a RAII wrapper over zlib's GZip file routines + + + + + +#pragma once + +#include "lib/zlib/zlib.h" + + + + + +class cGZipFile +{ +public: + enum eMode + { + fmRead, // Read-only. If the file doesn't exist, object will not be valid + fmWrite, // Write-only. If the file already exists, it will be overwritten + } ; + + cGZipFile(void); + ~cGZipFile(); + + /// Opens the file. Returns true if successful. Fails if a file has already been opened through this object. + bool Open(const AString & a_FileName, eMode a_Mode); + + /// Closes the file, flushing all buffers. This object may be then reused for a different file and / or mode + void Close(void); + + /// Reads the rest of the file and decompresses it into a_Contents. Returns the number of decompressed bytes, <0 for error + int ReadRestOfFile(AString & a_Contents); + + /// Writes a_Contents into file, compressing it along the way. Returns true if successful. Multiple writes are supported. + bool Write(const AString & a_Contents) { return Write(a_Contents.data(), (int)(a_Contents.size())); } + + bool Write(const char * a_Data, int a_Size); + +protected: + gzFile m_File; + eMode m_Mode; +} ; + + + + + |