//----------------------------------------------------------------------------
//
// Debugger engine extension helper library.
//
// Copyright (C) Microsoft Corporation, 1999-2000.
//
//----------------------------------------------------------------------------

#define DEBUG_NO_IMPLEMENTATION
#include <engexts.h>

PDEBUG_ADVANCED       g_ExtAdvanced;
PDEBUG_CLIENT         g_ExtClient;
PDEBUG_CONTROL        g_ExtControl;
PDEBUG_DATA_SPACES    g_ExtData;
PDEBUG_DATA_SPACES2   g_ExtData2;
PDEBUG_DATA_SPACES3   g_ExtData3;
PDEBUG_REGISTERS      g_ExtRegisters;
PDEBUG_SYMBOLS        g_ExtSymbols;
PDEBUG_SYSTEM_OBJECTS g_ExtSystem;

// Queries for all debugger interfaces.
HRESULT
ExtQuery(PDEBUG_CLIENT Client)
{
    HRESULT Status;

    //
    // Required interfaces.
    //
    
    if ((Status = Client->QueryInterface(__uuidof(IDebugAdvanced),
                                         (void **)&g_ExtAdvanced)) != S_OK)
    {
        goto Fail;
    }
    if ((Status = Client->QueryInterface(__uuidof(IDebugControl),
                                         (void **)&g_ExtControl)) != S_OK)
    {
        goto Fail;
    }
    if ((Status = Client->QueryInterface(__uuidof(IDebugDataSpaces),
                                         (void **)&g_ExtData)) != S_OK)
    {
        goto Fail;
    }
    if ((Status = Client->QueryInterface(__uuidof(IDebugRegisters),
                                         (void **)&g_ExtRegisters)) != S_OK)
    {
        goto Fail;
    }
    if ((Status = Client->QueryInterface(__uuidof(IDebugSymbols),
                                         (void **)&g_ExtSymbols)) != S_OK)
    {
        goto Fail;
    }
    if ((Status = Client->QueryInterface(__uuidof(IDebugSystemObjects),
                                         (void **)&g_ExtSystem)) != S_OK)
    {
        goto Fail;
    }

    //
    // Optional interfaces.
    //
    
    if ((Status = Client->QueryInterface(__uuidof(IDebugDataSpaces2),
                                         (void **)&g_ExtData2)) != S_OK)
    {
        g_ExtData2 = NULL;
    }
    
    if ((Status = Client->QueryInterface(__uuidof(IDebugDataSpaces3),
                                         (void **)&g_ExtData3)) != S_OK)
    {
        g_ExtData3 = NULL;
    }
    
    g_ExtClient = Client;
    
    return S_OK;

 Fail:
    ExtRelease();
    return Status;
}

// Cleans up all debugger interfaces.
void
ExtRelease(void)
{
    g_ExtClient = NULL;
    EXT_RELEASE(g_ExtAdvanced);
    EXT_RELEASE(g_ExtControl);
    EXT_RELEASE(g_ExtData);
    EXT_RELEASE(g_ExtData2);
    EXT_RELEASE(g_ExtData3);
    EXT_RELEASE(g_ExtRegisters);
    EXT_RELEASE(g_ExtSymbols);
    EXT_RELEASE(g_ExtSystem);
}

// Normal output.
void __cdecl
ExtOut(PCSTR Format, ...)
{
    va_list Args;
    
    va_start(Args, Format);
    g_ExtControl->OutputVaList(DEBUG_OUTPUT_NORMAL, Format, Args);
    va_end(Args);
}

// Error output.
void __cdecl
ExtErr(PCSTR Format, ...)
{
    va_list Args;
    
    va_start(Args, Format);
    g_ExtControl->OutputVaList(DEBUG_OUTPUT_ERROR, Format, Args);
    va_end(Args);
}

// Warning output.
void __cdecl
ExtWarn(PCSTR Format, ...)
{
    va_list Args;
    
    va_start(Args, Format);
    g_ExtControl->OutputVaList(DEBUG_OUTPUT_WARNING, Format, Args);
    va_end(Args);
}

// Verbose output.
void __cdecl
ExtVerb(PCSTR Format, ...)
{
    va_list Args;
    
    va_start(Args, Format);
    g_ExtControl->OutputVaList(DEBUG_OUTPUT_VERBOSE, Format, Args);
    va_end(Args);
}