/*
    (C) 1995-96 AROS - The Amiga Replacement OS
    $Id: lockibase.c,v 1.4 1997/01/27 00:36:40 ldp Exp $

    Desc:
    Lang: english
*/
#include <proto/exec.h>
#include "intuition_intern.h"

/*****************************************************************************

    NAME */
#include <proto/intuition.h>

	AROS_LH1(ULONG, LockIBase,

/*  SYNOPSIS */
	AROS_LHA(ULONG, What, D0),

/*  LOCATION */
	struct IntuitionBase *, IntuitionBase, 69, Intuition)

/*  FUNCTION
	Locks Intuition. While you hold this lock, no fields of Intuition
	will change. Please release this as soon as possible.

    INPUTS
	What - Which fields of Intuition should be locked. The only allowed
		value for this is currently 0 which means to lock everything.

    RESULT
	The result of this function must be passed to UnlockIBase().

    NOTES
	You *must not* call this function if you have any locks on other
	system resources like layers and LayerInfo locks.

    EXAMPLE

    BUGS

    SEE ALSO
	UnLockIBase()

    INTERNALS

    HISTORY
	29-10-95    digulla automatically created from
			    intuition_lib.fd and clib/intuition_protos.h

*****************************************************************************/
{
    AROS_LIBFUNC_INIT
    AROS_LIBBASE_EXT_DECL(struct IntuitionBase *,IntuitionBase)

    ObtainSemaphore (GetPrivIBase(IntuitionBase)->SigSem);

    return What;
    AROS_LIBFUNC_EXIT
} /* LockIBase */