// **************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de)                    *
// **************************************************************************

#include "debug_new.h"

#include "win.h" //includes "windows.h"
#include "DbgHelp.h" //available for MSC only
#pragma comment(lib, "Dbghelp.lib")


namespace
{
LONG WINAPI writeDumpOnException(EXCEPTION_POINTERS* pExceptionInfo)
{
    HANDLE hFile = ::CreateFile(L"exception.dmp", GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);

    MINIDUMP_EXCEPTION_INFORMATION exInfo = {};
    exInfo.ThreadId          = ::GetCurrentThreadId();
    exInfo.ExceptionPointers = pExceptionInfo;
    exInfo.ClientPointers    = NULL;

    MINIDUMP_EXCEPTION_INFORMATION* exceptParam = pExceptionInfo ? &exInfo : NULL;

    ::MiniDumpWriteDump(::GetCurrentProcess(),   //__in  HANDLE hProcess,
                        ::GetCurrentProcessId(), //__in  DWORD ProcessId,
                        hFile,                   //__in  HANDLE hFile,
                        MiniDumpWithDataSegs,    //__in  MINIDUMP_TYPE DumpType,  ->Standard: MiniDumpNormal, Medium: MiniDumpWithDataSegs, Full: MiniDumpWithFullMemory
                        exceptParam,             //__in  PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam,
                        NULL,                    //__in  PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam,
                        NULL);                   //__in  PMINIDUMP_CALLBACK_INFORMATION CallbackParam

    ::CloseHandle(hFile);

    return EXCEPTION_EXECUTE_HANDLER;
}


struct WriteDumpOnUnhandledException
{
    WriteDumpOnUnhandledException()
    {
        ::SetUnhandledExceptionFilter(writeDumpOnException);
    }
} dummy; //ensure that a dump-file is written for uncaught exceptions
}


void mem_check::writeMinidump()
{
    writeDumpOnException(NULL);
}