WebSVN – HelenOS – Diff – /trunk/kernel/generic/include/proc/thread.h


/*
 * Copyright (c) 2001-2004 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup genericproc
 * @{
 */
/** @file
 */
 
#ifndef KERN_THREAD_H_
#define KERN_THREAD_H_
 
#include <synch/waitq.h>
#include <proc/task.h>
#include <time/timeout.h>
#include <cpu.h>
#include <synch/rwlock.h>
#include <adt/btree.h>
#include <mm/slab.h>
#include <arch/cpu.h>
#include <mm/tlb.h>
#include <proc/uarg.h>
 
#define THREAD_STACK_SIZE   STACK_SIZE
#define THREAD_NAME_BUFLEN  20
 
extern char *thread_states[];
 
/* Thread flags */
 
/** Thread cannot be migrated to another CPU.
 *
 * When using this flag, the caller must set cpu in the thread_t
 * structure manually before calling thread_ready (even on uniprocessor).
 */
#define THREAD_FLAG_WIRED   (1 << 0)
/** Thread was migrated to another CPU and has not run yet. */
#define THREAD_FLAG_STOLEN  (1 << 1)
/** Thread executes in userspace. */
#define THREAD_FLAG_USPACE  (1 << 2)
/** Thread will be attached by the caller. */
#define THREAD_FLAG_NOATTACH    (1 << 3)
 
/** Thread states. */
typedef enum {
    /** It is an error, if thread is found in this state. */
    Invalid,
    /** State of a thread that is currently executing on some CPU. */
    Running,
    /** Thread in this state is waiting for an event. */
    Sleeping,
    /** State of threads in a run queue. */
    Ready,
    /** Threads are in this state before they are first readied. */
    Entering,
    /** After a thread calls thread_exit(), it is put into Exiting state. */
    Exiting,
    /** Threads that were not detached but exited are in the Undead state. */
    Undead
} state_t;
 
/** Join types. */
typedef enum {
    None,
    TaskClnp,   /**< The thread will be joined by ktaskclnp thread. */
    TaskGC      /**< The thread will be joined by ktaskgc thread. */
} thread_join_type_t;
 
/** Thread structure. There is one per thread. */
typedef struct thread {
    link_t rq_link;     /**< Run queue link. */
    link_t wq_link;     /**< Wait queue link. */
    link_t th_link;     /**< Links to threads within containing task. */
   
    /** Lock protecting thread structure.
     *
     * Protects the whole thread structure except list links above.
     */
    SPINLOCK_DECLARE(lock);
 
    char name[THREAD_NAME_BUFLEN];
 
    /** Function implementing the thread. */
    void (* thread_code)(void *);
    /** Argument passed to thread_code() function. */
    void *thread_arg;
 
    /**
     * From here, the stored context is restored when the thread is
     * scheduled.
     */
    context_t saved_context;
    /**
     * From here, the stored timeout context is restored when sleep times
     * out.
     */
    context_t sleep_timeout_context;
    /**
     * From here, the stored interruption context is restored when sleep is
     * interrupted.
     */
    context_t sleep_interruption_context;
 
    /** If true, the thread can be interrupted from sleep. */
    bool sleep_interruptible;
    /** Wait queue in which this thread sleeps. */
    waitq_t *sleep_queue;
    /** Timeout used for timeoutable sleeping.  */
    timeout_t sleep_timeout;
    /** Flag signalling sleep timeout in progress. */
    volatile int timeout_pending;
 
    /**
     * True if this thread is executing copy_from_uspace().
     * False otherwise.
     */
    bool in_copy_from_uspace;
    /**
     * True if this thread is executing copy_to_uspace().
     * False otherwise.
     */
    bool in_copy_to_uspace;
   
    /**
     * If true, the thread will not go to sleep at all and will call
     * thread_exit() before returning to userspace.
     */
    bool interrupted;          
   
    /** Who joinins the thread. */
    thread_join_type_t join_type;
    /** If true, thread_join_timeout() cannot be used on this thread. */
    bool detached;
    /** Waitq for thread_join_timeout(). */
    waitq_t join_wq;
 
    fpu_context_t *saved_fpu_context;
    int fpu_context_exists;
 
    /*
     * Defined only if thread doesn't run.
     * It means that fpu context is in CPU that last time executes this
     * thread. This disables migration.
     */
    int fpu_context_engaged;
 
    rwlock_type_t rwlock_holder_type;
 
    /** Callback fired in scheduler before the thread is put asleep. */
    void (* call_me)(void *);
    /** Argument passed to call_me(). */
    void *call_me_with;
 
    /** Thread's state. */
    state_t state;
    /** Thread's flags. */
    int flags;
   
    /** Thread's CPU. */
    cpu_t *cpu;
    /** Containing task. */
    task_t *task;
 
    /** Ticks before preemption. */
    uint64_t ticks;
   
    /** Thread accounting. */
    uint64_t cycles;
    /** Last sampled cycle. */
    uint64_t last_cycle;
    /** Thread doesn't affect accumulated accounting. */   
    bool uncounted;
 
    /** Thread's priority. Implemented as index to CPU->rq */
    int priority;
    /** Thread ID. */
    thread_id_t tid;
   
    /** Architecture-specific data. */
    thread_arch_t arch;
 
    /** Thread's kernel stack. */
    uint8_t *kstack;
} thread_t;
 
/** Thread list lock.
 *
 * This lock protects all link_t structures chained in threads_head.
 * Must be acquired before T.lock for each T of type thread_t.
 *
 */
SPINLOCK_EXTERN(threads_lock);
 
/** B+tree containing all threads. */
extern btree_t threads_btree;
 
extern void thread_init(void);
extern thread_t *thread_create(void (* func)(void *), void *arg, task_t *task,
    int flags, char *name, bool uncounted);
extern void thread_attach(thread_t *t, task_t *task);
extern void thread_ready(thread_t *t);
extern void thread_exit(void) __attribute__((noreturn));
 
#ifndef thread_create_arch
extern void thread_create_arch(thread_t *t);
#endif
#ifndef thr_constructor_arch
extern void thr_constructor_arch(thread_t *t);
#endif
#ifndef thr_destructor_arch
extern void thr_destructor_arch(thread_t *t);
#endif
 
extern void thread_sleep(uint32_t sec);
extern void thread_usleep(uint32_t usec);
 
#define thread_join(t) \
    thread_join_timeout((t), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)
extern int thread_join_timeout(thread_t *t, uint32_t usec, int flags);
extern void thread_detach(thread_t *t);
 
extern void thread_register_call_me(void (* call_me)(void *),
    void *call_me_with);
extern void thread_print_list(void);
extern void thread_destroy(thread_t *t);
extern void thread_update_accounting(void);
extern bool thread_exists(thread_t *t);
 
/** Fpu context slab cache. */
extern slab_cache_t *fpu_context_slab;
 
/* Thread syscall prototypes. */
extern unative_t sys_thread_create(uspace_arg_t *uspace_uarg, char *uspace_name, thread_id_t *uspace_thread_id);
extern unative_t sys_thread_exit(int uspace_status);
extern unative_t sys_thread_get_id(thread_id_t *uspace_thread_id);
 
#endif
 
/** @}
 */
 

Rev 2268	Rev 2440
1	/*	1	/*
2	* Copyright (c) 2001-2004 Jakub Jermar	2	* Copyright (c) 2001-2004 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup genericproc	29	/** @addtogroup genericproc
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef KERN_THREAD_H_	35	#ifndef KERN_THREAD_H_
36	#define KERN_THREAD_H_	36	#define KERN_THREAD_H_
37		37
38	#include <synch/waitq.h>	38	#include <synch/waitq.h>
39	#include <proc/task.h>	39	#include <proc/task.h>
40	#include <time/timeout.h>	40	#include <time/timeout.h>
41	#include <cpu.h>	41	#include <cpu.h>
42	#include <synch/rwlock.h>	42	#include <synch/rwlock.h>
43	#include <adt/btree.h>	43	#include <adt/btree.h>
44	#include <mm/slab.h>	44	#include <mm/slab.h>
45	#include <arch/cpu.h>	45	#include <arch/cpu.h>
46	#include <mm/tlb.h>	46	#include <mm/tlb.h>
47	#include <proc/uarg.h>	47	#include <proc/uarg.h>
48		48
49	#define THREAD_STACK_SIZE STACK_SIZE	49	#define THREAD_STACK_SIZE STACK_SIZE
50	#define THREAD_NAME_BUFLEN 20	50	#define THREAD_NAME_BUFLEN 20
51		51
52	extern char *thread_states[];	52	extern char *thread_states[];
53		53
54	/* Thread flags */	54	/* Thread flags */
55		55
56	/** Thread cannot be migrated to another CPU.	56	/** Thread cannot be migrated to another CPU.
57	*	57	*
58	* When using this flag, the caller must set cpu in the thread_t	58	* When using this flag, the caller must set cpu in the thread_t
59	* structure manually before calling thread_ready (even on uniprocessor).	59	* structure manually before calling thread_ready (even on uniprocessor).
60	*/	60	*/
61	#define THREAD_FLAG_WIRED (1 << 0)	61	#define THREAD_FLAG_WIRED (1 << 0)
62	/** Thread was migrated to another CPU and has not run yet. */	62	/** Thread was migrated to another CPU and has not run yet. */
63	#define THREAD_FLAG_STOLEN (1 << 1)	63	#define THREAD_FLAG_STOLEN (1 << 1)
64	/** Thread executes in userspace. */	64	/** Thread executes in userspace. */
65	#define THREAD_FLAG_USPACE (1 << 2)	65	#define THREAD_FLAG_USPACE (1 << 2)
-		66	/** Thread will be attached by the caller. */
-		67	#define THREAD_FLAG_NOATTACH (1 << 3)
66		68
67	/** Thread states. */	69	/** Thread states. */
68	typedef enum {	70	typedef enum {
69	/** It is an error, if thread is found in this state. */	71	/** It is an error, if thread is found in this state. */
70	Invalid,	72	Invalid,
71	/** State of a thread that is currently executing on some CPU. */	73	/** State of a thread that is currently executing on some CPU. */
72	Running,	74	Running,
73	/** Thread in this state is waiting for an event. */	75	/** Thread in this state is waiting for an event. */
74	Sleeping,	76	Sleeping,
75	/** State of threads in a run queue. */	77	/** State of threads in a run queue. */
76	Ready,	78	Ready,
77	/** Threads are in this state before they are first readied. */	79	/** Threads are in this state before they are first readied. */
78	Entering,	80	Entering,
79	/** After a thread calls thread_exit(), it is put into Exiting state. */	81	/** After a thread calls thread_exit(), it is put into Exiting state. */
80	Exiting,	82	Exiting,
81	/** Threads that were not detached but exited are in the Undead state. */	83	/** Threads that were not detached but exited are in the Undead state. */
82	Undead	84	Undead
83	} state_t;	85	} state_t;
84		86
85	/** Join types. */	87	/** Join types. */
86	typedef enum {	88	typedef enum {
87	None,	89	None,
88	TaskClnp, /*< The thread will be joined by ktaskclnp thread. /	90	TaskClnp, /*< The thread will be joined by ktaskclnp thread. /
89	TaskGC /*< The thread will be joined by ktaskgc thread. /	91	TaskGC /*< The thread will be joined by ktaskgc thread. /
90	} thread_join_type_t;	92	} thread_join_type_t;
91		93
92	/** Thread structure. There is one per thread. */	94	/** Thread structure. There is one per thread. */
93	typedef struct thread {	95	typedef struct thread {
94	link_t rq_link; /*< Run queue link. /	96	link_t rq_link; /*< Run queue link. /
95	link_t wq_link; /*< Wait queue link. /	97	link_t wq_link; /*< Wait queue link. /
96	link_t th_link; /*< Links to threads within containing task. /	98	link_t th_link; /*< Links to threads within containing task. /
97		99
98	/** Lock protecting thread structure.	100	/** Lock protecting thread structure.
99	*	101	*
100	* Protects the whole thread structure except list links above.	102	* Protects the whole thread structure except list links above.
101	*/	103	*/
102	SPINLOCK_DECLARE(lock);	104	SPINLOCK_DECLARE(lock);
103		105
104	char name[THREAD_NAME_BUFLEN];	106	char name[THREAD_NAME_BUFLEN];
105		107
106	/** Function implementing the thread. */	108	/** Function implementing the thread. */
107	void (* thread_code)(void *);	109	void (* thread_code)(void *);
108	/** Argument passed to thread_code() function. */	110	/** Argument passed to thread_code() function. */
109	void *thread_arg;	111	void *thread_arg;
110		112
111	/**	113	/**
112	* From here, the stored context is restored when the thread is	114	* From here, the stored context is restored when the thread is
113	* scheduled.	115	* scheduled.
114	*/	116	*/
115	context_t saved_context;	117	context_t saved_context;
116	/**	118	/**
117	* From here, the stored timeout context is restored when sleep times	119	* From here, the stored timeout context is restored when sleep times
118	* out.	120	* out.
119	*/	121	*/
120	context_t sleep_timeout_context;	122	context_t sleep_timeout_context;
121	/**	123	/**
122	* From here, the stored interruption context is restored when sleep is	124	* From here, the stored interruption context is restored when sleep is
123	* interrupted.	125	* interrupted.
124	*/	126	*/
125	context_t sleep_interruption_context;	127	context_t sleep_interruption_context;
126		128
127	/** If true, the thread can be interrupted from sleep. */	129	/** If true, the thread can be interrupted from sleep. */
128	bool sleep_interruptible;	130	bool sleep_interruptible;
129	/** Wait queue in which this thread sleeps. */	131	/** Wait queue in which this thread sleeps. */
130	waitq_t *sleep_queue;	132	waitq_t *sleep_queue;
131	/** Timeout used for timeoutable sleeping. */	133	/** Timeout used for timeoutable sleeping. */
132	timeout_t sleep_timeout;	134	timeout_t sleep_timeout;
133	/** Flag signalling sleep timeout in progress. */	135	/** Flag signalling sleep timeout in progress. */
134	volatile int timeout_pending;	136	volatile int timeout_pending;
135		137
136	/**	138	/**
137	* True if this thread is executing copy_from_uspace().	139	* True if this thread is executing copy_from_uspace().
138	* False otherwise.	140	* False otherwise.
139	*/	141	*/
140	bool in_copy_from_uspace;	142	bool in_copy_from_uspace;
141	/**	143	/**
142	* True if this thread is executing copy_to_uspace().	144	* True if this thread is executing copy_to_uspace().
143	* False otherwise.	145	* False otherwise.
144	*/	146	*/
145	bool in_copy_to_uspace;	147	bool in_copy_to_uspace;
146		148
147	/**	149	/**
148	* If true, the thread will not go to sleep at all and will call	150	* If true, the thread will not go to sleep at all and will call
149	* thread_exit() before returning to userspace.	151	* thread_exit() before returning to userspace.
150	*/	152	*/
151	bool interrupted;	153	bool interrupted;
152		154
153	/** Who joinins the thread. */	155	/** Who joinins the thread. */
154	thread_join_type_t join_type;	156	thread_join_type_t join_type;
155	/** If true, thread_join_timeout() cannot be used on this thread. */	157	/** If true, thread_join_timeout() cannot be used on this thread. */
156	bool detached;	158	bool detached;
157	/** Waitq for thread_join_timeout(). */	159	/** Waitq for thread_join_timeout(). */
158	waitq_t join_wq;	160	waitq_t join_wq;
159		161
160	fpu_context_t *saved_fpu_context;	162	fpu_context_t *saved_fpu_context;
161	int fpu_context_exists;	163	int fpu_context_exists;
162		164
163	/*	165	/*
164	* Defined only if thread doesn't run.	166	* Defined only if thread doesn't run.
165	* It means that fpu context is in CPU that last time executes this	167	* It means that fpu context is in CPU that last time executes this
166	* thread. This disables migration.	168	* thread. This disables migration.
167	*/	169	*/
168	int fpu_context_engaged;	170	int fpu_context_engaged;
169		171
170	rwlock_type_t rwlock_holder_type;	172	rwlock_type_t rwlock_holder_type;
171		173
172	/** Callback fired in scheduler before the thread is put asleep. */	174	/** Callback fired in scheduler before the thread is put asleep. */
173	void (* call_me)(void *);	175	void (* call_me)(void *);
174	/** Argument passed to call_me(). */	176	/** Argument passed to call_me(). */
175	void *call_me_with;	177	void *call_me_with;
176		178
177	/** Thread's state. */	179	/** Thread's state. */
178	state_t state;	180	state_t state;
179	/** Thread's flags. */	181	/** Thread's flags. */
180	int flags;	182	int flags;
181		183
182	/** Thread's CPU. */	184	/** Thread's CPU. */
183	cpu_t *cpu;	185	cpu_t *cpu;
184	/** Containing task. */	186	/** Containing task. */
185	task_t *task;	187	task_t *task;
186		188
187	/** Ticks before preemption. */	189	/** Ticks before preemption. */
188	uint64_t ticks;	190	uint64_t ticks;
189		191
190	/** Thread accounting. */	192	/** Thread accounting. */
191	uint64_t cycles;	193	uint64_t cycles;
192	/** Last sampled cycle. */	194	/** Last sampled cycle. */
193	uint64_t last_cycle;	195	uint64_t last_cycle;
194	/** Thread doesn't affect accumulated accounting. */	196	/** Thread doesn't affect accumulated accounting. */
195	bool uncounted;	197	bool uncounted;
196		198
197	/** Thread's priority. Implemented as index to CPU->rq */	199	/** Thread's priority. Implemented as index to CPU->rq */
198	int priority;	200	int priority;
199	/** Thread ID. */	201	/** Thread ID. */
200	thread_id_t tid;	202	thread_id_t tid;
201		203
202	/** Architecture-specific data. */	204	/** Architecture-specific data. */
203	thread_arch_t arch;	205	thread_arch_t arch;
204		206
205	/** Thread's kernel stack. */	207	/** Thread's kernel stack. */
206	uint8_t *kstack;	208	uint8_t *kstack;
207	} thread_t;	209	} thread_t;
208		210
209	/** Thread list lock.	211	/** Thread list lock.
210	*	212	*
211	* This lock protects all link_t structures chained in threads_head.	213	* This lock protects all link_t structures chained in threads_head.
212	* Must be acquired before T.lock for each T of type thread_t.	214	* Must be acquired before T.lock for each T of type thread_t.
213	*	215	*
214	*/	216	*/
215	SPINLOCK_EXTERN(threads_lock);	217	SPINLOCK_EXTERN(threads_lock);
216		218
217	/** B+tree containing all threads. */	219	/** B+tree containing all threads. */
218	extern btree_t threads_btree;	220	extern btree_t threads_btree;
219		221
220	extern void thread_init(void);	222	extern void thread_init(void);
221	extern thread_t thread_create(void ( func)(void ), void arg, task_t *task,	223	extern thread_t thread_create(void ( func)(void ), void arg, task_t *task,
222	int flags, char *name, bool uncounted);	224	int flags, char *name, bool uncounted);
-		225	extern void thread_attach(thread_t t, task_t task);
223	extern void thread_ready(thread_t *t);	226	extern void thread_ready(thread_t *t);
224	extern void thread_exit(void) __attribute__((noreturn));	227	extern void thread_exit(void) __attribute__((noreturn));
225		228
226	#ifndef thread_create_arch	229	#ifndef thread_create_arch
227	extern void thread_create_arch(thread_t *t);	230	extern void thread_create_arch(thread_t *t);
228	#endif	231	#endif
229	#ifndef thr_constructor_arch	232	#ifndef thr_constructor_arch
230	extern void thr_constructor_arch(thread_t *t);	233	extern void thr_constructor_arch(thread_t *t);
231	#endif	234	#endif
232	#ifndef thr_destructor_arch	235	#ifndef thr_destructor_arch
233	extern void thr_destructor_arch(thread_t *t);	236	extern void thr_destructor_arch(thread_t *t);
234	#endif	237	#endif
235		238
236	extern void thread_sleep(uint32_t sec);	239	extern void thread_sleep(uint32_t sec);
237	extern void thread_usleep(uint32_t usec);	240	extern void thread_usleep(uint32_t usec);
238		241
239	#define thread_join(t) \	242	#define thread_join(t) \
240	thread_join_timeout((t), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)	243	thread_join_timeout((t), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)
241	extern int thread_join_timeout(thread_t *t, uint32_t usec, int flags);	244	extern int thread_join_timeout(thread_t *t, uint32_t usec, int flags);
242	extern void thread_detach(thread_t *t);	245	extern void thread_detach(thread_t *t);
243		246
244	extern void thread_register_call_me(void (* call_me)(void *),	247	extern void thread_register_call_me(void (* call_me)(void *),
245	void *call_me_with);	248	void *call_me_with);
246	extern void thread_print_list(void);	249	extern void thread_print_list(void);
247	extern void thread_destroy(thread_t *t);	250	extern void thread_destroy(thread_t *t);
248	extern void thread_update_accounting(void);	251	extern void thread_update_accounting(void);
249	extern bool thread_exists(thread_t *t);	252	extern bool thread_exists(thread_t *t);
250		253
251	/** Fpu context slab cache. */	254	/** Fpu context slab cache. */
252	extern slab_cache_t *fpu_context_slab;	255	extern slab_cache_t *fpu_context_slab;
253		256
254	/* Thread syscall prototypes. */	257	/* Thread syscall prototypes. */
255	extern unative_t sys_thread_create(uspace_arg_t uspace_uarg, char uspace_name, thread_id_t *uspace_thread_id);	258	extern unative_t sys_thread_create(uspace_arg_t uspace_uarg, char uspace_name, thread_id_t *uspace_thread_id);
256	extern unative_t sys_thread_exit(int uspace_status);	259	extern unative_t sys_thread_exit(int uspace_status);
257	extern unative_t sys_thread_get_id(thread_id_t *uspace_thread_id);	260	extern unative_t sys_thread_get_id(thread_id_t *uspace_thread_id);
258		261
259	#endif	262	#endif
260		263
261	/** @}	264	/** @}
262	*/	265	*/
263		266

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/include/proc/thread.h – Rev 2268 → 2440