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/* /////////////////////////////////////////////////////////////////////////
* File: pantheios/severity/levels.hpp
*
* Purpose: Definition of the pantheios::level class template, which may
* be used to generate levels pseudo-constants.
*
* Created: 22nd July 2006
* Updated: 23rd July 2010
*
* Home: http://www.pantheios.org/
*
* Copyright (c) 2006-2010, Matthew Wilson and Synesis Software
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name(s) of Matthew Wilson and Synesis Software nor the
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ////////////////////////////////////////////////////////////////////// */
/** \file pantheios/severity/levels.hpp
*
* [C++ only] Definition of the pantheios::level class template, which can
* be used to generate levels pseudo-constants.
*/
#ifndef PANTHEIOS_INCL_PANTHEIOS_SEVERITY_HPP_LEVELS
#define PANTHEIOS_INCL_PANTHEIOS_SEVERITY_HPP_LEVELS
/* /////////////////////////////////////////////////////////////////////////
* Version information
*/
#ifndef PANTHEIOS_DOCUMENTATION_SKIP_SECTION
# define PANTHEIOS_VER_PANTHEIOS_SEVERITY_HPP_LEVELS_MAJOR 2
# define PANTHEIOS_VER_PANTHEIOS_SEVERITY_HPP_LEVELS_MINOR 0
# define PANTHEIOS_VER_PANTHEIOS_SEVERITY_HPP_LEVELS_REVISION 2
# define PANTHEIOS_VER_PANTHEIOS_SEVERITY_HPP_LEVELS_EDIT 23
#endif /* !PANTHEIOS_DOCUMENTATION_SKIP_SECTION */
/* /////////////////////////////////////////////////////////////////////////
* Includes
*/
#ifndef PANTHEIOS_INCL_PANTHEIOS_H_PANTHEIOS
# include <pantheios/pantheios.h>
#endif /* !PANTHEIOS_INCL_PANTHEIOS_H_PANTHEIOS */
#ifndef PANTHEIOS_INCL_PANTHEIOS_QUALITY_H_CONTRACT
# include <pantheios/quality/contract.h>
#endif /* !PANTHEIOS_INCL_PANTHEIOS_QUALITY_H_CONTRACT */
/* /////////////////////////////////////////////////////////////////////////
* Namespace
*/
#if !defined(PANTHEIOS_NO_NAMESPACE)
namespace pantheios
{
#endif /* !PANTHEIOS_NO_NAMESPACE */
/* /////////////////////////////////////////////////////////////////////////
* Classes
*/
/** Class that acts as an integer value - indicating a severity
* level - but which also facilitates the provision of 28-bits of
* extended severity information.
*
* In normal use, the levels instances - pantheios::debug,
* pantheios::informational ... pantheios::emergency - can be used in the
* place of the pan_severity_t enumerators.
*
* \warning The levels values must not be used in the definition of a
* front-end or back-end. This is because the levels values are static
* instances, and will likely be in a race with the API Schwarz counter
* (static) initialiser instances. It is likely that using one of the
* levels values in that case will yield the value 0.
*/
template <int Level>
class level
{
/// \name Member Types
/// @{
public:
typedef level<Level> class_type;
/// @}
/// \name Construction
/// @{
public:
level()
{}
/// @}
/// \name Operators
/// @{
public:
/// Implicit conversion to the underlying level value
operator pan_sev_t () const
{
return Level;
}
/// Function-call operator that allows extended severity information
/// to be provided to the front-/back-ends
///
/// \param extendedSeverityInformation28 28-bits of extended
/// information to be included in the
///
/// \pre 0 == (extendedSeverityInformation28 & ~0xf0000000)
pan_sev_t operator ()(pan_sev_t extendedSeverityInformation28) const
{
PANTHEIOS_CONTRACT_ENFORCE_PRECONDITION_PARAMS_APPL_LAYER(extendedSeverityInformation28 < 0x10000000, "Extended severity information is limited to 28-bits");
return (Level & 0x0f) | ((extendedSeverityInformation28 << 4) & ~0x0f);
}
/// @}
/// \name Not to be implemented
/// @{
private:
class_type& operator =(class_type const&);
/// @}
};
/* /////////////////////////////////////////////////////////////////////////
* Namespace
*/
#if !defined(PANTHEIOS_NO_NAMESPACE)
} /* namespace pantheios */
#endif /* !PANTHEIOS_NO_NAMESPACE */
/* ////////////////////////////////////////////////////////////////////// */
#endif /* !PANTHEIOS_INCL_PANTHEIOS_SEVERITY_HPP_LEVELS */
/* ///////////////////////////// end of file //////////////////////////// */