| 1 | /*
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| 2 | * Copyright (c) 2009 Martin Decky
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| 3 | * Copyright (c) 2015 Michal Koutny
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup taskman
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| 31 | * @{
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| 32 | */
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| 33 |
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| 34 | #ifndef TASKMAN_TASK_H__
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| 35 | #define TASKMAN_TASK_H__
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| 36 |
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| 37 | #include <abi/proc/task.h>
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| 38 | #include <adt/hash_table.h>
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| 39 | #include <adt/list.h>
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| 40 | #include <fibril_synch.h>
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| 41 | #include <ipc/common.h>
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| 42 |
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| 43 | /** What type of retval from the task we have */
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| 44 | typedef enum {
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| 45 | RVAL_UNSET, /**< unset */
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| 46 | RVAL_SET, /**< retval set, e.g. by server */
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| 47 | RVAL_SET_EXIT /**< retval set, wait for expected task exit */
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| 48 | } retval_t;
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| 49 |
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| 50 | /** Holds necessary information of each (registered) task. */
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| 51 | typedef struct {
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| 52 | ht_link_t link;
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| 53 |
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| 54 | task_id_t id; /**< Task id. */
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| 55 | task_exit_t exit; /**< Task's uspace exit status. */
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| 56 | bool failed; /**< Task failed (task can exit unexpectedly
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| 57 | even w/out failure). */
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| 58 | retval_t retval_type; /**< Task returned a value. */
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| 59 | int retval; /**< The return value. */
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| 60 |
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| 61 | link_t listeners; /**< Link to listeners list. */
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| 62 | async_sess_t *sess; /**< Session for notifications to task. */
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| 63 | } task_t;
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| 64 |
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| 65 | extern hash_table_t task_hash_table;
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| 66 | extern fibril_rwlock_t task_hash_table_lock;
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| 67 |
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| 68 | extern int task_init(void);
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| 69 |
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| 70 | extern task_t *task_get_by_id(task_id_t);
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| 71 |
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| 72 | extern int task_intro(ipc_call_t *, bool);
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| 73 |
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| 74 | #endif
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| 75 |
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| 76 | /**
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| 77 | * @}
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| 78 | */
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