/*
 * Support for the Unix part of builtin dlls
 *
 * Copyright 2019 Alexandre Julliard
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#ifdef _WIN32

#include <stdarg.h>

#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winternl.h"

static NTSTATUS (__cdecl *p__wine_init_unix_lib)( HMODULE, DWORD, const void *, void * );

static void load_func( void **func, const char *name, void *def )
{
    if (!*func)
    {
        HMODULE module = GetModuleHandleA( "ntdll.dll" );
        void *proc = GetProcAddress( module, name );
        InterlockedExchangePointer( func, proc ? proc : def );
    }
}
#define LOAD_FUNC(name) load_func( (void **)&p ## name, #name, fallback ## name )

static NTSTATUS __cdecl fallback__wine_init_unix_lib( HMODULE module, DWORD reason, const void *ptr_in, void *ptr_out )
{
    return STATUS_DLL_NOT_FOUND;
}

NTSTATUS __cdecl __wine_init_unix_lib( HMODULE module, DWORD reason, const void *ptr_in, void *ptr_out )
{
    LOAD_FUNC( __wine_init_unix_lib );
    return p__wine_init_unix_lib( module, reason, ptr_in, ptr_out );
}

#endif  /* _WIN32 */