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1 | jermar | 1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | #ifndef __TASK_H__ |
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30 | #define __TASK_H__ |
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31 | |||
32 | #include <typedefs.h> |
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33 | #include <synch/spinlock.h> |
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1159 | jermar | 34 | #include <adt/btree.h> |
788 | jermar | 35 | #include <adt/list.h> |
955 | palkovsky | 36 | #include <ipc/ipc.h> |
1174 | jermar | 37 | #include <security/cap.h> |
1235 | jermar | 38 | #include <mm/as_arg.h> |
1184 | jermar | 39 | #include <arch/proc/task.h> |
1 | jermar | 40 | |
703 | jermar | 41 | /** Task structure. */ |
1 | jermar | 42 | struct task { |
623 | jermar | 43 | SPINLOCK_DECLARE(lock); |
1062 | jermar | 44 | char *name; |
410 | jermar | 45 | link_t th_head; /**< List of threads contained in this task. */ |
703 | jermar | 46 | as_t *as; /**< Address space. */ |
1159 | jermar | 47 | task_id_t taskid; /**< Unique identity of task */ |
1005 | palkovsky | 48 | |
1174 | jermar | 49 | cap_t capabilities; /**< Task capabilities. */ |
50 | |||
998 | palkovsky | 51 | /* IPC stuff */ |
955 | palkovsky | 52 | answerbox_t answerbox; /**< Communication endpoint */ |
53 | phone_t phones[IPC_MAX_PHONES]; |
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998 | palkovsky | 54 | atomic_t active_calls; /**< Active asynchronous messages */ |
1184 | jermar | 55 | |
1235 | jermar | 56 | /** Accept argument of SYS_AS_AREA_ACCEPT. */ |
57 | as_area_acptsnd_arg_t accept_arg; |
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58 | |||
1187 | jermar | 59 | task_arch_t arch; /**< Architecture specific task data. */ |
1 | jermar | 60 | }; |
61 | |||
62 | extern spinlock_t tasks_lock; |
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1159 | jermar | 63 | extern btree_t tasks_btree; |
1 | jermar | 64 | |
65 | extern void task_init(void); |
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1062 | jermar | 66 | extern task_t *task_create(as_t *as, char *name); |
67 | extern task_t *task_run_program(void *program_addr, char *name); |
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1178 | jermar | 68 | extern task_t *task_find_by_id(task_id_t id); |
1 | jermar | 69 | |
1185 | jermar | 70 | #ifndef task_create_arch |
71 | extern void task_create_arch(task_t *t); |
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72 | #endif |
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73 | |||
1227 | jermar | 74 | extern __native sys_task_get_id(task_id_t *uspace_task_id); |
1176 | jermar | 75 | |
1 | jermar | 76 | #endif |