/*
Copyright (C) 2009-2010 Electronic Arts, Inc.  All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1.  Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
2.  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.
3.  Neither the name of Electronic Arts, Inc. ("EA") nor the names of
    its contributors may be used to endorse or promote products derived
    from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ELECTRONIC ARTS AND ITS 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 ELECTRONIC ARTS OR ITS 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.
*/

///////////////////////////////////////////////////////////////////////////////
// EASTL/assert.cpp
//
// Copyright (c) 2005, Electronic Arts. All rights reserved.
// Written and maintained by Paul Pedriana.
///////////////////////////////////////////////////////////////////////////////



#include <EASTL/internal/config.h>
#include <EASTL/string.h>
#include <EABase/eabase.h>

#if defined(EA_PLATFORM_MICROSOFT)
    #pragma warning(push, 0)
    #if defined _MSC_VER
        #include <crtdbg.h>
    #endif
    #if defined(EA_PLATFORM_WINDOWS)
        #ifndef WIN32_LEAN_AND_MEAN
            #define WIN32_LEAN_AND_MEAN
        #endif
        #include <windows.h>
    #elif defined(EA_PLATFORM_XENON)
        #include <comdecl.h>
    #endif
    #pragma warning(pop)
#else
    #include <stdio.h>
#endif




namespace eastl
{

    /// gpAssertionFailureFunction
    /// 
    /// Global assertion failure function pointer. Set by SetAssertionFailureFunction.
    /// 
    EASTL_API EASTL_AssertionFailureFunction gpAssertionFailureFunction        = AssertionFailureFunctionDefault;
    EASTL_API void*                          gpAssertionFailureFunctionContext = NULL;



    /// SetAssertionFailureFunction
    ///
    /// Sets the function called when an assertion fails. If this function is not called
    /// by the user, a default function will be used. The user may supply a context parameter
    /// which will be passed back to the user in the function call. This is typically used
    /// to store a C++ 'this' pointer, though other things are possible.
    ///
    /// There is no thread safety here, so the user needs to externally make sure that
    /// this function is not called in a thread-unsafe way. The easiest way to do this is 
    /// to just call this function once from the main thread on application startup.
    ///
    EASTL_API void SetAssertionFailureFunction(EASTL_AssertionFailureFunction pAssertionFailureFunction, void* pContext)
    {
        gpAssertionFailureFunction        = pAssertionFailureFunction;
        gpAssertionFailureFunctionContext = pContext;
    }



    /// AssertionFailureFunctionDefault
    ///
    EASTL_API void AssertionFailureFunctionDefault(const char* pExpression, void* /*pContext*/)
    {
        (void)pExpression;
#if defined(EA_DEBUG) || defined(_DEBUG)       
        // We cannot use puts() because it appends a newline.
        // We cannot use printf(pExpression) because pExpression might have formatting statements.
        #if defined(EA_PLATFORM_MICROSOFT)
            OutputDebugStringA(pExpression);
        #else
            printf("%s", pExpression); // Write the message to stdout, which happens to be the trace view for many console debug machines.
        #endif
#endif
        EASTL_DEBUG_BREAK();
    }


    /// AssertionFailure
    ///
    EASTL_API void AssertionFailure(const char* pExpression)
    {
        if(gpAssertionFailureFunction)
            gpAssertionFailureFunction(pExpression, gpAssertionFailureFunctionContext);
    }


} // namespace eastl