![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to task.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Apple Darwin 0.x] / kernel / kern|
Return to task.h CVS log | Up to [Apple Darwin 0.x] / kernel / kern |
1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /*
26: * Mach Operating System
27: * Copyright (c) 1993-1988 Carnegie Mellon University
28: * All Rights Reserved.
29: *
30: * Permission to use, copy, modify and distribute this software and its
31: * documentation is hereby granted, provided that both the copyright
32: * notice and this permission notice appear in all copies of the
33: * software, derivative works or modified versions, and any portions
34: * thereof, and that both notices appear in supporting documentation.
35: *
36: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
37: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
38: * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
39: *
40: * Carnegie Mellon requests users of this software to return to
41: *
42: * Software Distribution Coordinator or [email protected]
43: * School of Computer Science
44: * Carnegie Mellon University
45: * Pittsburgh PA 15213-3890
46: *
47: * any improvements or extensions that they make and grant Carnegie Mellon
48: * the rights to redistribute these changes.
49: */
50: /*
51: * File: task.h
52: * Author: Avadis Tevanian, Jr.
53: *
54: * This file contains the structure definitions for tasks.
55: *
56: */
57:
58: #ifndef _KERN_TASK_H_
59: #define _KERN_TASK_H_
60:
61: #import <mach/features.h>
62:
63: #include <mach/boolean.h>
64: #include <mach/port.h>
65: #include <mach/time_value.h>
66: #include <mach/mach_param.h>
67: #include <mach/task_info.h>
68: #include <kern/kern_types.h>
69: #include <kern/lock.h>
70: #include <kern/queue.h>
71: #include <kern/processor.h>
72: #include <vm/vm_map.h>
73:
74: struct task {
75: /* Synchronization/destruction information */
76: decl_simple_lock_data(,lock) /* Task's lock */
77: int ref_count; /* Number of references to me */
78: boolean_t active; /* Task has not been terminated */
79:
80: /* Miscellaneous */
81: vm_map_t map; /* Address space description */
82: queue_chain_t pset_tasks; /* list of tasks assigned to pset */
83: int suspend_count; /* Internal scheduling only */
84:
85: /* Thread information */
86: queue_head_t thread_list; /* list of threads */
87: int thread_count; /* number of threads */
88: decl_simple_lock_data(,thread_list_lock) /* XXX thread_list lock */
89: processor_set_t processor_set; /* processor set for new threads */
90: boolean_t may_assign; /* can assigned pset be changed? */
91: boolean_t assign_active; /* waiting for may_assign */
92:
93: /* Garbage */
94: struct proc *proc; /* corresponding process */
95:
96: /* Task-wide thread context information */
97: struct
98: pcb_common *pcb_common;
99:
100: /* User-visible scheduling information */
101: int user_stop_count; /* outstanding stops */
102: int priority; /* for new threads */
103:
104: /* Information for kernel-internal tasks */
105: boolean_t kernel_privilege; /* Is a kernel task */
106: boolean_t kernel_vm_space; /* Uses kernel's pmap? */
107:
108: /* Statistics */
109: time_value_t total_user_time;
110: /* total user time for dead threads */
111: time_value_t total_system_time;
112: /* total system time for dead threads */
113:
114: /* IPC structures */
115: decl_simple_lock_data(, itk_lock_data)
116: struct ipc_port *itk_self; /* not a right, doesn't hold ref */
117: struct ipc_port *itk_sself; /* a send right */
118: struct ipc_port *itk_exception; /* a send right */
119: struct ipc_port *itk_bootstrap; /* a send right */
120: struct ipc_port *itk_registered[TASK_PORT_REGISTER_MAX];
121: /* all send rights */
122:
123: struct ipc_space *itk_space;
124:
125: #if NORMA_TASK
126: long child_node; /* if != -1, node for new children */
127: #endif /* NORMA_TASK */
128: };
129:
130: #define task_lock(task) simple_lock(&(task)->lock)
131: #define task_unlock(task) simple_unlock(&(task)->lock)
132:
133: #define itk_lock_init(task) simple_lock_init(&(task)->itk_lock_data)
134: #define itk_lock(task) simple_lock(&(task)->itk_lock_data)
135: #define itk_unlock(task) simple_unlock(&(task)->itk_lock_data)
136:
137: #define ipc_task_lock(t) simple_lock(&(t)->ipc_translation_lock)
138: #define ipc_task_unlock(t) simple_unlock(&(t)->ipc_translation_lock)
139:
140: /*
141: * Exported routines/macros
142: */
143:
144: extern kern_return_t task_create();
145: extern kern_return_t task_terminate();
146: extern kern_return_t task_suspend();
147: extern kern_return_t task_resume();
148: extern kern_return_t task_threads();
149: extern kern_return_t task_ports();
150: extern kern_return_t task_info();
151: extern kern_return_t task_get_special_port();
152: extern kern_return_t task_set_special_port();
153: extern kern_return_t task_assign();
154: extern kern_return_t task_assign_default();
155:
156: /*
157: * Internal only routines
158: */
159:
160: extern void task_init();
161: extern void task_reference();
162: extern void task_deallocate();
163: extern kern_return_t task_hold();
164: extern kern_return_t task_dowait();
165: extern kern_return_t task_release();
166: extern kern_return_t task_halt();
167:
168: extern kern_return_t task_suspend_nowait();
169: extern task_t kernel_task_create();
170:
171: extern task_t kernel_task;
172:
173: #endif /* _KERN_TASK_H_ */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.