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/**
* @file wrapllerrs.h
* @author Nat Goodspeed
* @date 2009-03-11
* @brief Define a class useful for unit tests that engage llerrs (LL_ERRS) functionality
*
* $LicenseInfo:firstyear=2009&license=viewergpl$
* Copyright (c) 2009, Linden Research, Inc.
* $/LicenseInfo$
*/
#if ! defined(LL_WRAPLLERRS_H)
#define LL_WRAPLLERRS_H
#include "llerrorcontrol.h"
struct WrapLL_ERRS
{
WrapLL_ERRS():
// Resetting Settings discards the default Recorder that writes to
// stderr. Otherwise, expected llerrs (LL_ERRS) messages clutter the
// console output of successful tests, potentially confusing things.
mPriorErrorSettings(LLError::saveAndResetSettings()),
// Save shutdown function called by LL_ERRS
mPriorFatal(LLError::getFatalFunction())
{
// Make LL_ERRS call our own operator() method
LLError::setFatalFunction(boost::bind(&WrapLL_ERRS::operator(), this, _1));
}
~WrapLL_ERRS()
{
LLError::setFatalFunction(mPriorFatal);
LLError::restoreSettings(mPriorErrorSettings);
}
struct FatalException: public std::runtime_error
{
FatalException(const std::string& what): std::runtime_error(what) {}
};
void operator()(const std::string& message)
{
// Save message for later in case consumer wants to sense the result directly
error = message;
// Also throw an appropriate exception since calling code is likely to
// assume that control won't continue beyond LL_ERRS.
throw FatalException(message);
}
std::string error;
LLError::Settings* mPriorErrorSettings;
LLError::FatalFunction mPriorFatal;
};
#endif /* ! defined(LL_WRAPLLERRS_H) */
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