/*
 * www.sourceforge.net/projects/dfhack
 * Copyright (c) 2009 Petr Mrázek (peterix), Kenneth Ferland (Impaler[WrG]), dorf
 * 
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any
 * damages arising from the use of this software.
 * 
 * Permission is granted to anyone to use this software for any
 * purpose, including commercial applications, and to alter it and
 * redistribute it freely, subject to the following restrictions:
 * 
 * 1. The origin of this software must not be misrepresented; you must
 * not claim that you wrote the original software. If you use this
 * software in a product, an acknowledgment in the product documentation
 * would be appreciated but is not required.
 * 
 * 2. Altered source versions must be plainly marked as such, and
 * must not be misrepresented as being the original software.
 * 
 * 3. This notice may not be removed or altered from any source
 * distribution.
 */

#ifndef DFPLATFORMINTERNAL_H_INCLUDED
#define DFPLATFORMINTERNAL_H_INCLUDED

// platform includes and defines
#ifdef LINUX_BUILD
    #include <sys/types.h>
    #include <sys/ptrace.h>
    #include <dirent.h>
    #include <unistd.h>
    #include <sys/stat.h>
    #include <fcntl.h>
    #include <sys/wait.h>
#else
    // WINDOWS
    #define _WIN32_WINNT 0x0501 // needed for INPUT struct
    #define WINVER 0x0501       // OpenThread(), PSAPI, Toolhelp32
    #define WIN32_LEAN_AND_MEAN
    #include <windows.h>
    #include <winnt.h>
    #include <psapi.h>
    #include <tlhelp32.h>
    //#include <Dbghelp.h> // NOT present in mingw32
    typedef LONG NTSTATUS;
    #define STATUS_SUCCESS ((NTSTATUS)0x00000000L)

    // FIXME: it is uncertain how these map to 64bit
    typedef struct _DEBUG_BUFFER
    {
        HANDLE SectionHandle;
        PVOID  SectionBase;
        PVOID  RemoteSectionBase;
        ULONG  SectionBaseDelta;
        HANDLE  EventPairHandle;
        ULONG  Unknown[2];
        HANDLE  RemoteThreadHandle;
        ULONG  InfoClassMask;
        ULONG  SizeOfInfo;
        ULONG  AllocatedSize;
        ULONG  SectionSize;
        PVOID  ModuleInformation;
        PVOID  BackTraceInformation;
        PVOID  HeapInformation;
        PVOID  LockInformation;
        PVOID  Reserved[8];
    } DEBUG_BUFFER, *PDEBUG_BUFFER;

    typedef struct _DEBUG_HEAP_INFORMATION
    {
        ULONG Base; // 0×00
        ULONG Flags; // 0×04
        USHORT Granularity; // 0×08
        USHORT Unknown; // 0x0A
        ULONG Allocated; // 0x0C
        ULONG Committed; // 0×10
        ULONG TagCount; // 0×14
        ULONG BlockCount; // 0×18
        ULONG Reserved[7]; // 0x1C
        PVOID Tags; // 0×38
        PVOID Blocks; // 0x3C
    } DEBUG_HEAP_INFORMATION, *PDEBUG_HEAP_INFORMATION;

    // RtlQueryProcessDebugInformation.DebugInfoClassMask constants
    #define PDI_MODULES                       0x01
    #define PDI_BACKTRACE                     0x02
    #define PDI_HEAPS                         0x04
    #define PDI_HEAP_TAGS                     0x08
    #define PDI_HEAP_BLOCKS                   0x10
    #define PDI_LOCKS                         0x20

    extern "C" __declspec(dllimport) NTSTATUS __stdcall RtlQueryProcessDebugInformation( IN ULONG  ProcessId, IN ULONG  DebugInfoClassMask, IN OUT PDEBUG_BUFFER  DebugBuffer);
    extern "C" __declspec(dllimport) PDEBUG_BUFFER __stdcall RtlCreateQueryDebugBuffer( IN ULONG  Size, IN BOOLEAN  EventPair);
    extern "C" __declspec(dllimport) NTSTATUS __stdcall RtlDestroyQueryDebugBuffer( IN PDEBUG_BUFFER  DebugBuffer);
#endif // WINDOWS

#endif // DFPLATFORMINTERNAL_H_INCLUDED