53 lines
1.0 KiB
C++
53 lines
1.0 KiB
C++
#ifndef __MAPPED_FILE_H__
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#define __MAPPED_FILE_H__
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#include <new>
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#include <sys/mman.h>
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#include <File/File.h>
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class File;
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class MappedFile {
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public:
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MappedFile();
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MappedFile(MappedFile&);
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MappedFile(const File &f, File::FileFlags flags, size_t size = -1);
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MappedFile(const char *name, File::FileFlags flags);
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MappedFile(const char *name, File::FileFlags flags, const std::nothrow_t ¬hrow);
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~MappedFile();
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static MappedFile *Create(const char *name, size_t size);
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bool isValid() const
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{
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return _address != MAP_FAILED;
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}
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void sync();
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void close();
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void *address() const { return _address; }
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size_t length() const { return _length; }
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bool readOnly() const { return _readOnly; }
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void swap(MappedFile &);
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void adopt(MappedFile &);
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private:
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MappedFile& operator=(MappedFile &);
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void init(const File &f, bool readOnly, size_t size);
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void *_address;
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size_t _length;
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bool _readOnly;
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};
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#endif |