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98 lines
3.3 KiB
98 lines
3.3 KiB
// scuOsExc.h -- Operating System EXCeption class declaration
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// (c) Copyright Schlumberger Technology Corp., unpublished work, created
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// 1999. This computer program includes Confidential, Proprietary
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// Information and is a Trade Secret of Schlumberger Technology Corp. All
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// use, disclosure, and/or reproduction is prohibited unless authorized
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// in writing. All Rights Reserved.
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#if !defined(SCU_OSEXC_H)
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#define SCU_OSEXC_H
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#include <windows.h>
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#include <winerror.h>
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#include "scuExc.h"
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namespace scu
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{
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// Instantiate ExcTemplate so that OsException can be derived from it
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// and properly exported in a DLL. See MSDN Knowledge Base Article
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// Q168958 for more information.
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#if defined(SCU_IN_DLL)
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#pragma warning(push)
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// Non-standard extension used: 'extern' before template explicit
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// instantiation
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#pragma warning(disable : 4231)
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SCU_EXPIMP_TEMPLATE template class SCU_DLLAPI
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ExcTemplate<Exception::fcOS, DWORD>;
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#pragma warning(pop)
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#endif
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// A general exception class to represent OS error codes as
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// exceptions. For example, on the Windows platform a DWORD is
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// returned by a Windows routine (usually through GetLastError). The
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// value could be translated into an OsException with value as the
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// CauseCode.
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//
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// On Windows, the error return codes are found in WINERROR.H
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// and other header files as described by the Windows function.
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// OsException will take an HRESULT, mapping it to a DWORD (which is
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// what GetLastError returns).
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class SCU_DLLAPI OsException
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: public ExcTemplate<Exception::fcOS, DWORD>
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{
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public:
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// Types
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// C'tors/D'tors
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explicit
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OsException(CauseCode cc) throw();
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explicit
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OsException(HRESULT hr) throw();
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OsException(OsException const &rhs);
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virtual
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~OsException() throw();
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// Operators
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virtual scu::Exception *
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Clone() const;
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virtual void
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Raise() const;
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// Operations
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// Access
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virtual char const *
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Description() const;
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// Predicates
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protected:
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// Types
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// C'tors/D'tors
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// Operators
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// Operations
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// Access
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// Predicates
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// Variables
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private:
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// Types
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// C'tors/D'tors
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// Operators
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// Operations
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// Access
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// Predicates
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// Variables
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LPTSTR mutable m_lpDescription; // cached description
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};
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} // namespace
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#endif // SCU_OSEXC_H
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