system_cmds-643.30.1.tar.gz

[apple/system_cmds.git] / CPPUtil / UtilMappedFile.hpp

diff --git a/CPPUtil/UtilMappedFile.hpp b/CPPUtil/UtilMappedFile.hpp
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+//
+//  UtilMappedFile.h
+//  CPPUtil
+//
+//  Created by James McIlree on 4/19/13.
+//  Copyright (c) 2013 Apple. All rights reserved.
+//
+
+#ifndef __CPPUtil__UtilMappedFile__
+#define __CPPUtil__UtilMappedFile__
+
+class MappedFile {
+    protected:
+       unsigned char*  _address;
+       size_t          _size;
+
+    public:
+       MappedFile(const char* path);
+       ~MappedFile();
+
+       uint8_t* address()      { return _address; }
+       size_t size()           { return _size; }
+
+        bool mmap_failed() const       { return _size > 0 && _address == nullptr; }
+};
+
+#endif /* defined(__CPPUtil__UtilMappedFile__) */