/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This 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 OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * @OSF_FREE_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990,1989 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* */ /* * File: mach/mach_port.defs * Author: Rich Draves * * Exported kernel calls. */ subsystem #if KERNEL_SERVER KernelServer #endif KERNEL_SERVER task 3400; #include #include /* * Create a new task with an empty set of IPC rights, * and having an address space constructed from the * target task (or empty, if inherit_memory is FALSE). */ routine task_create( target_task : task_t; ledgers : ledger_array_t; inherit_memory : boolean_t; out child_task : task_t); /* * Destroy the target task, causing all of its threads * to be destroyed, all of its IPC rights to be deallocated, * and all of its address space to be deallocated. */ routine task_terminate( target_task : task_t); /* * Returns the set of threads belonging to the target task. */ routine task_threads( target_task : task_t; out act_list : thread_act_array_t); /* * Stash a handful of ports for the target task; child * tasks inherit this stash at task_create time. */ routine mach_ports_register( target_task : task_t; init_port_set : mach_port_array_t = ^array[] of mach_port_t); /* * Retrieve the stashed ports for the target task. */ routine mach_ports_lookup( target_task : task_t; out init_port_set : mach_port_array_t = ^array[] of mach_port_t); /* * Returns information about the target task. */ routine task_info( target_task : task_t; flavor : task_flavor_t; out task_info_out : task_info_t, CountInOut); /* * Set task information. */ routine task_set_info( target_task : task_t; flavor : task_flavor_t; task_info_in : task_info_t); /* * Increment the suspend count for the target task. * No threads within a task may run when the suspend * count for that task is non-zero. */ routine task_suspend( target_task : task_t); /* * Decrement the suspend count for the target task, * if the count is currently non-zero. If the resulting * suspend count is zero, then threads within the task * that also have non-zero suspend counts may execute. */ routine task_resume( target_task : task_t); /* * Returns the current value of the selected special port * associated with the target task. */ routine task_get_special_port( task : task_t; which_port : int; out special_port : mach_port_t); /* * Set one of the special ports associated with the * target task. */ routine task_set_special_port( task : task_t; which_port : int; special_port : mach_port_t); /* * Create a new thread within the target task, returning * the port representing the first thr_act in that new thread. The * initial execution state of the thread is undefined. */ routine thread_create( parent_task : task_t; out child_act : thread_act_t); /* * Create a new thread within the target task, returning * the port representing that new thread. The new thread * is not suspended; its initial execution state is given * by flavor and new_state. Returns the port representing * the new thread. */ routine thread_create_running( parent_task : task_t; flavor : thread_state_flavor_t; new_state : thread_state_t; out child_act : thread_act_t); /* * Set an exception handler for a task on one or more exception types. * These handlers are invoked for all threads in the task if there are * no thread-specific exception handlers or those handlers returned an * error. */ routine task_set_exception_ports( task : task_t; exception_mask : exception_mask_t; new_port : mach_port_t; behavior : exception_behavior_t; new_flavor : thread_state_flavor_t); /* * Lookup some of the old exception handlers for a task */ routine task_get_exception_ports( task : task_t; exception_mask : exception_mask_t; out masks : exception_mask_array_t; out old_handlers : exception_handler_array_t, SameCount; out old_behaviors : exception_behavior_array_t, SameCount; out old_flavors : exception_flavor_array_t, SameCount); /* * Set an exception handler for a thread on one or more exception types. * At the same time, return the previously defined exception handlers for * those types. */ routine task_swap_exception_ports( task : task_t; exception_mask : exception_mask_t; new_port : mach_port_t; behavior : exception_behavior_t; new_flavor : thread_state_flavor_t; out masks : exception_mask_array_t; out old_handlerss : exception_handler_array_t, SameCount; out old_behaviors : exception_behavior_array_t, SameCount; out old_flavors : exception_flavor_array_t, SameCount); /* * Create and destroy lock_set and semaphore synchronizers on a * per-task basis (i.e. the task owns them). */ routine lock_set_create( task : task_t; out new_lock_set : lock_set_t; n_ulocks : int; policy : int); routine lock_set_destroy( task : task_t; lock_set : lock_set_t); routine semaphore_create( task : task_t; out semaphore : semaphore_t; policy : int; value : int); routine semaphore_destroy( task : task_t; semaphore : semaphore_consume_ref_t); /* * Set/get policy information for a task. * (Approved Mac OS X microkernel interface) */ routine task_policy_set( task : task_t; flavor : task_policy_flavor_t; policy_info : task_policy_t); routine task_policy_get( task : task_t; flavor : task_policy_flavor_t; out policy_info : task_policy_t, CountInOut; inout get_default : boolean_t); /* * Task profiling. */ routine task_sample( task : task_t; reply : mach_port_make_send_t); /* * JMM - Everything from here down is likely to go away soon */ /* * OBSOLETE interface. */ routine task_policy( task : task_t; policy : policy_t; base : policy_base_t; set_limit : boolean_t; change : boolean_t); /* * Establish a user-level handler for the specified * system call. */ routine task_set_emulation( target_port : task_t; routine_entry_pt: vm_address_t; routine_number : int); /* * Get user-level handler entry points for all * emulated system calls. */ routine task_get_emulation_vector( task : task_t; out vector_start : int; out emulation_vector: emulation_vector_t); /* * Establish user-level handlers for the specified * system calls. Non-emulated system calls are specified * with emulation_vector[i] == EML_ROUTINE_NULL. */ routine task_set_emulation_vector( task : task_t; vector_start : int; emulation_vector: emulation_vector_t); /* * Establish restart pc for interrupted atomic sequences. */ routine task_set_ras_pc( target_task : task_t; basepc : vm_address_t; boundspc : vm_address_t); /* * JMM - Want to eliminate kernel tasks and processor_set so * keep them at the end. */ /* * Create a new task in the kernel's address space with * an empty set of IPC rights, with a map allocated from * the kernel's map starting at map_base of length map_size. */ routine kernel_task_create( target_task : task_t; map_base : vm_offset_t; map_size : vm_size_t; out child_task : task_t); /* * Assign task to processor set. */ routine task_assign( task : task_t; new_set : processor_set_t; assign_threads : boolean_t); /* * Assign task to default set. */ routine task_assign_default( task : task_t; assign_threads : boolean_t); /* * Get current assignment for task. */ routine task_get_assignment( task : task_t; out assigned_set : processor_set_name_t); /* * OBSOLETE interface. */ routine task_set_policy( task : task_t; pset : processor_set_t; policy : policy_t; base : policy_base_t; limit : policy_limit_t; change : boolean_t);