#ifndef __MONO_OS_GC_WRAPPER_H__
#define __MONO_OS_GC_WRAPPER_H__

#include <config.h>

#ifdef HAVE_BOEHM_GC

#	ifdef _MSC_VER
#		include <winsock2.h>
#	else
		/* libgc specifies this on the command line,
		 * so we must define it ourselfs
		*/
#		define GC_GCJ_SUPPORT
#	endif

	/*
	 * Local allocation is only beneficial if we have __thread
	 * We had to fix a bug with include order in libgc, so only do
	 * it if it is the included one.
	 */
	
#	if defined(HAVE_KW_THREAD) && defined(USE_INCLUDED_LIBGC) && !defined(__powerpc__)
        /* The local alloc stuff is in pthread_support.c, but solaris uses solaris_threads.c */
        /* It is also disabled on solaris/x86 by libgc/configure.in */
#       if !defined(__sparc__) && !defined(__sun)
#		    define GC_REDIRECT_TO_LOCAL
#       endif
#	endif

#	ifdef HAVE_GC_GC_H
#		include <gc/gc.h>
#		include <gc/gc_typed.h>
#		include <gc/gc_mark.h>
#		include <gc/gc_gcj.h>
#	elif defined(HAVE_GC_H) || defined(USE_INCLUDED_LIBGC)
#		include <gc.h>
#		include <gc_typed.h>
#		include <gc_mark.h>
#		include <gc_gcj.h>
#	else
#		error have boehm GC without headers, you probably need to install them by hand
#	endif
	/* for some strange resion, they want one extra byte on the end */
#	define MONO_GC_REGISTER_ROOT(x) \
		GC_add_roots ((char*)&(x), (char*)&(x) + sizeof (x) + 1)
	/* this needs to be called before ANY gc allocations. We can't use
	 * mono_gc_init here because we need to make allocations before that
	 * function is called 
	 */
#	define MONO_GC_PRE_INIT() GC_init ()

#if defined(PLATFORM_WIN32)
#define CreateThread GC_CreateThread
#endif

#elif defined(HAVE_SGEN_GC)

#if defined(PLATFORM_WIN32)
#define CreateThread mono_gc_CreateThread
#else
/* pthread function wrappers */
#include <pthread.h>
#include <signal.h>

int mono_gc_pthread_create (pthread_t *new_thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg);
int mono_gc_pthread_join (pthread_t thread, void **retval);
int mono_gc_pthread_detach (pthread_t thread);

#define pthread_create mono_gc_pthread_create
#define pthread_join mono_gc_pthread_join
#define pthread_detach mono_gc_pthread_detach

#endif

extern int
mono_gc_register_root (char *start, size_t size, void *descr);
extern void mono_gc_base_init (void);

#	define MONO_GC_REGISTER_ROOT(x) mono_gc_register_root (&(x), sizeof(x), NULL)
#	define MONO_GC_PRE_INIT() mono_gc_base_init ()

#else /* not Boehm and not sgen GC */
#	define MONO_GC_REGISTER_ROOT(x) /* nop */
#	define MONO_GC_PRE_INIT()
#endif

#endif