/*
* Copyright (c) 2000-2020 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _KERN_TASK_REF_H_
#define _KERN_TASK_REF_H_
#include <mach/mach_types.h>
#include <stdint.h>
#if MACH_KERNEL_PRIVATE
extern void task_ref_init(void);
extern void task_ref_count_fini(task_t);
extern kern_return_t task_ref_count_init(task_t);
extern void task_reference_external(task_t task);
extern void task_deallocate_external(task_t task);
#endif /* MACH_KERNEL_PRIVATE */
#if XNU_KERNEL_PRIVATE
#include <os/refcnt.h>
__BEGIN_DECLS
extern struct os_refgrp task_external_refgrp;
__options_closed_decl(task_grp_t, uint32_t, {
TASK_GRP_KERNEL,
TASK_GRP_INTERNAL,
TASK_GRP_MIG,
TASK_GRP_EXTERNAL,
TASK_GRP_COUNT,
});
extern void task_reference_grp(task_t, task_grp_t);
extern void task_deallocate_grp(task_t, task_grp_t);
#define task_reference_mig(task) task_reference_grp(task, TASK_GRP_MIG)
#define task_deallocate_mig(task) task_deallocate_grp(task, TASK_GRP_MIG)
/*
* Exported symbols get mapped to their _external versions. Internal consumers of
* these functions need to pick up the _kernel version.
*/
#define task_reference(task) task_reference_grp(task, TASK_GRP_KERNEL)
#define task_deallocate(task) task_deallocate_grp(task, TASK_GRP_KERNEL)
#define convert_task_to_port(task) convert_task_to_port_kernel(task)
#define convert_task_read_to_port(task) convert_task_read_to_port_kernel(task)
#define port_name_to_task(name) port_name_to_task_kernel(name)
#define convert_port_to_task_suspension_token(port) convert_port_to_task_suspension_token_kernel(port)
#define convert_task_suspension_token_to_port(token) convert_task_suspension_token_to_port_kernel(token)
#define task_resume2(token) task_resume2_kernel(token)
#define task_suspend2(task, token) task_suspend2_kernel(task, token)
__END_DECLS
#else /* XNU_KERNEL_PRIVATE */
__BEGIN_DECLS
extern void task_reference(task_t);
extern void task_deallocate(task_t);
__END_DECLS
#endif /* XNU_KERNEL_PRIVATE */
#endif /*_KERN_TASK_REF_H_ */