00001 /* 00002 * Copyright (C) 2001-2004 Jakub Jermar 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 00009 * - Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * - Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * - The name of the author may not be used to endorse or promote products 00015 * derived from this software without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 00018 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00019 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 00020 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 00021 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 00022 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00023 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00024 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00025 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 00026 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 */ 00028 00035 #ifndef __TASK_H__ 00036 #define __TASK_H__ 00037 00038 #include <typedefs.h> 00039 #include <synch/spinlock.h> 00040 #include <synch/mutex.h> 00041 #include <synch/futex.h> 00042 #include <adt/btree.h> 00043 #include <adt/list.h> 00044 #include <ipc/ipc.h> 00045 #include <security/cap.h> 00046 #include <arch/proc/task.h> 00047 00049 struct task { 00054 SPINLOCK_DECLARE(lock); 00055 00056 char *name; 00057 thread_t *main_thread; 00058 link_t th_head; 00059 as_t *as; 00060 task_id_t taskid; 00063 bool accept_new_threads; 00064 00065 count_t refcount; 00067 cap_t capabilities; 00069 /* IPC stuff */ 00070 answerbox_t answerbox; 00071 phone_t phones[IPC_MAX_PHONES]; 00072 atomic_t active_calls; 00076 task_arch_t arch; 00082 mutex_t futexes_lock; 00083 btree_t futexes; 00084 }; 00085 00086 extern spinlock_t tasks_lock; 00087 extern btree_t tasks_btree; 00088 00089 extern void task_init(void); 00090 extern task_t *task_create(as_t *as, char *name); 00091 extern void task_destroy(task_t *t); 00092 extern task_t *task_run_program(void *program_addr, char *name); 00093 extern task_t *task_find_by_id(task_id_t id); 00094 extern int task_kill(task_id_t id); 00095 00096 00097 #ifndef task_create_arch 00098 extern void task_create_arch(task_t *t); 00099 #endif 00100 00101 #ifndef task_destroy_arch 00102 extern void task_destroy_arch(task_t *t); 00103 #endif 00104 00105 extern __native sys_task_get_id(task_id_t *uspace_task_id); 00106 00107 #endif 00108