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46 lines
1,017 B
C++
46 lines
1,017 B
C++
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#include "MappedFile.h"
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USING_NS_BF;
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#ifdef BF_PLATFORM_WINDOWS
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MappedFile::MappedFile()
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{
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mMappedFile = INVALID_HANDLE_VALUE;
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mMappedFileMapping = INVALID_HANDLE_VALUE;
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mData = NULL;
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mFileSize = 0;
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}
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MappedFile::~MappedFile()
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{
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if (mData != NULL)
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::UnmapViewOfFile(mData);
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if (mMappedFileMapping != INVALID_HANDLE_VALUE)
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::CloseHandle(mMappedFileMapping);
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if (mMappedFile != INVALID_HANDLE_VALUE)
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::CloseHandle(mMappedFile);
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}
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bool MappedFile::Open(const StringImpl& fileName)
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{
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mFileName = fileName;
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mMappedFile = CreateFileA(fileName.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, NULL, NULL);
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if (mMappedFile == INVALID_HANDLE_VALUE)
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{
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return false;
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}
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DWORD highFileSize = 0;
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mFileSize = (int)GetFileSize(mMappedFile, &highFileSize);
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mMappedFileMapping = CreateFileMapping(mMappedFile, NULL, PAGE_READONLY, 0, mFileSize, NULL);
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mData = MapViewOfFile(mMappedFileMapping, FILE_MAP_READ, 0, 0, mFileSize);
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if (mData == NULL)
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{
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return false;
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}
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return true;
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}
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#endif
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