Initial Commit

common/FILEMAP.HPP

@@ -0,0 +1,112 @@
+#if defined(__FLAT__)
+#ifndef _COMMON_FILEMAP_HPP_
+#define _COMMON_FILEMAP_HPP_
+#ifndef _COMMON_STRING_HPP_
+#include <common/string.hpp>
+#endif
+
+class FileHandle;
+
+class FileMap
+{
+public:
+	friend class PureViewOfFile;
+	enum MapMessage{ShutDown=0x02};
+	enum Paging{ReadOnly=PAGE_READONLY,ReadWrite=PAGE_READWRITE,WriteCopy=PAGE_WRITECOPY};
+	enum Protection{Commit=SEC_COMMIT,Image=SEC_IMAGE,NoCache=SEC_NOCACHE,Reserve=SEC_RESERVE};
+	FileMap(void);
+	FileMap(String mapFileName,DWORD maxExtentHigh,DWORD maxExtentLow,Paging paging=ReadWrite,Protection protection=Commit);
+	FileMap(const FileHandle &someFileHandle);
+	virtual ~FileMap();
+  WORD create(const FileHandle &someFileHandle);
+	WORD create(String mapName,DWORD maxExtentHigh,DWORD maxExtentLow,Paging paging,Protection protection,HANDLE hMapFile=(HANDLE)0xFFFFFFFF);
+  BOOL open(const String &strName,DWORD maxExtentHigh,DWORD maxExtentLow,Paging paging=ReadWrite,Protection protection=Commit,DWORD access=FILE_MAP_ALL_ACCESS,BOOL inherit=TRUE);
+	DWORD maxExtentLow(void)const;
+	DWORD maxExtentHigh(void)const;
+	Paging paging(void)const;
+	Protection protection(void)const;
+	HANDLE getHandle(void)const;
+	WORD isOkay(void)const;
+private:
+	FileMap(const FileMap &someFileMap);
+	operator HANDLE(void)const;
+	void destroyMap(void);
+	void maxExtentLow(DWORD maxExtentLow);
+	void maxExtentHigh(DWORD maxExtentHigh);
+
+	Paging mPaging;
+	Protection mProtection;
+	DWORD mMaxExtentHigh;
+	DWORD mMaxExtentLow;
+	HANDLE mhFileHandle;
+};
+
+inline
+WORD FileMap::isOkay(void)const
+{
+	return (mhFileHandle?TRUE:FALSE);
+}
+
+inline
+FileMap::operator HANDLE(void)const
+{
+	return mhFileHandle;
+}
+
+inline
+DWORD FileMap::maxExtentLow(void)const
+{
+	return mMaxExtentLow;
+}
+
+inline
+void FileMap::maxExtentLow(DWORD maxExtentLow)
+{
+  mMaxExtentLow=maxExtentLow;
+}
+
+inline
+DWORD FileMap::maxExtentHigh(void)const
+{
+	return mMaxExtentHigh;
+}
+
+inline
+void FileMap::maxExtentHigh(DWORD maxExtentHigh)
+{
+  mMaxExtentHigh=maxExtentHigh;
+}
+
+inline
+FileMap::Paging FileMap::paging(void)const
+{
+	return mPaging;
+}
+
+inline
+FileMap::Protection FileMap::protection(void)const
+{
+	return mProtection;
+}
+
+inline
+FileMap::~FileMap()
+{
+	destroyMap();
+}
+
+inline
+HANDLE FileMap::getHandle(void)const
+{
+  return mhFileHandle;
+}
+
+inline
+void FileMap::destroyMap(void)
+{
+	if(!mhFileHandle)return;
+	::CloseHandle(mhFileHandle);
+	mhFileHandle=0;
+}
+#endif
+#endif