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


/*
 * Copyright (c) 2001-2007 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 <synch/spinlock.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 Lingering. */
    Lingering
} state_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;          
   
    /** If true, thread_join_timeout() cannot be used on this thread. */
    bool detached;
    /** Waitq for thread_join_timeout(). */
    waitq_t join_wq;
    /** Link used in the joiner_head list. */
    link_t joiner_link;
 
    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 2446	Rev 2451
1	/*	1	/*
2	* Copyright (c) 2001-2007 Jakub Jermar	2	* Copyright (c) 2001-2007 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 <synch/spinlock.h>	43	#include <synch/spinlock.h>
44	#include <adt/btree.h>	44	#include <adt/btree.h>
45	#include <mm/slab.h>	45	#include <mm/slab.h>
46	#include <arch/cpu.h>	46	#include <arch/cpu.h>
47	#include <mm/tlb.h>	47	#include <mm/tlb.h>
48	#include <proc/uarg.h>	48	#include <proc/uarg.h>
49		49
50	#define THREAD_STACK_SIZE STACK_SIZE	50	#define THREAD_STACK_SIZE STACK_SIZE
51	#define THREAD_NAME_BUFLEN 20	51	#define THREAD_NAME_BUFLEN 20
52		52
53	extern char *thread_states[];	53	extern char *thread_states[];
54		54
55	/* Thread flags */	55	/* Thread flags */
56		56
57	/** Thread cannot be migrated to another CPU.	57	/** Thread cannot be migrated to another CPU.
58	*	58	*
59	* When using this flag, the caller must set cpu in the thread_t	59	* When using this flag, the caller must set cpu in the thread_t
60	* structure manually before calling thread_ready (even on uniprocessor).	60	* structure manually before calling thread_ready (even on uniprocessor).
61	*/	61	*/
62	#define THREAD_FLAG_WIRED (1 << 0)	62	#define THREAD_FLAG_WIRED (1 << 0)
63	/** Thread was migrated to another CPU and has not run yet. */	63	/** Thread was migrated to another CPU and has not run yet. */
64	#define THREAD_FLAG_STOLEN (1 << 1)	64	#define THREAD_FLAG_STOLEN (1 << 1)
65	/** Thread executes in userspace. */	65	/** Thread executes in userspace. */
66	#define THREAD_FLAG_USPACE (1 << 2)	66	#define THREAD_FLAG_USPACE (1 << 2)
67	/** Thread will be attached by the caller. */	67	/** Thread will be attached by the caller. */
68	#define THREAD_FLAG_NOATTACH (1 << 3)	68	#define THREAD_FLAG_NOATTACH (1 << 3)
69		69
70	/** Thread states. */	70	/** Thread states. */
71	typedef enum {	71	typedef enum {
72	/** It is an error, if thread is found in this state. */	72	/** It is an error, if thread is found in this state. */
73	Invalid,	73	Invalid,
74	/** State of a thread that is currently executing on some CPU. */	74	/** State of a thread that is currently executing on some CPU. */
75	Running,	75	Running,
76	/** Thread in this state is waiting for an event. */	76	/** Thread in this state is waiting for an event. */
77	Sleeping,	77	Sleeping,
78	/** State of threads in a run queue. */	78	/** State of threads in a run queue. */
79	Ready,	79	Ready,
80	/** Threads are in this state before they are first readied. */	80	/** Threads are in this state before they are first readied. */
81	Entering,	81	Entering,
82	/** After a thread calls thread_exit(), it is put into Exiting state. */	82	/** After a thread calls thread_exit(), it is put into Exiting state. */
83	Exiting,	83	Exiting,
84	/** Threads that were not detached but exited are in the JoinMe state. */	84	/** Threads that were not detached but exited are Lingering. */
85	JoinMe	85	Lingering
86	} state_t;	86	} state_t;
87		87
88	/** Thread structure. There is one per thread. */	88	/** Thread structure. There is one per thread. */
89	typedef struct thread {	89	typedef struct thread {
90	link_t rq_link; /*< Run queue link. /	90	link_t rq_link; /*< Run queue link. /
91	link_t wq_link; /*< Wait queue link. /	91	link_t wq_link; /*< Wait queue link. /
92	link_t th_link; /*< Links to threads within containing task. /	92	link_t th_link; /*< Links to threads within containing task. /
93		93
94	/** Lock protecting thread structure.	94	/** Lock protecting thread structure.
95	*	95	*
96	* Protects the whole thread structure except list links above.	96	* Protects the whole thread structure except list links above.
97	*/	97	*/
98	SPINLOCK_DECLARE(lock);	98	SPINLOCK_DECLARE(lock);
99		99
100	char name[THREAD_NAME_BUFLEN];	100	char name[THREAD_NAME_BUFLEN];
101		101
102	/** Function implementing the thread. */	102	/** Function implementing the thread. */
103	void (* thread_code)(void *);	103	void (* thread_code)(void *);
104	/** Argument passed to thread_code() function. */	104	/** Argument passed to thread_code() function. */
105	void *thread_arg;	105	void *thread_arg;
106		106
107	/**	107	/**
108	* From here, the stored context is restored when the thread is	108	* From here, the stored context is restored when the thread is
109	* scheduled.	109	* scheduled.
110	*/	110	*/
111	context_t saved_context;	111	context_t saved_context;
112	/**	112	/**
113	* From here, the stored timeout context is restored when sleep times	113	* From here, the stored timeout context is restored when sleep times
114	* out.	114	* out.
115	*/	115	*/
116	context_t sleep_timeout_context;	116	context_t sleep_timeout_context;
117	/**	117	/**
118	* From here, the stored interruption context is restored when sleep is	118	* From here, the stored interruption context is restored when sleep is
119	* interrupted.	119	* interrupted.
120	*/	120	*/
121	context_t sleep_interruption_context;	121	context_t sleep_interruption_context;
122		122
123	/** If true, the thread can be interrupted from sleep. */	123	/** If true, the thread can be interrupted from sleep. */
124	bool sleep_interruptible;	124	bool sleep_interruptible;
125	/** Wait queue in which this thread sleeps. */	125	/** Wait queue in which this thread sleeps. */
126	waitq_t *sleep_queue;	126	waitq_t *sleep_queue;
127	/** Timeout used for timeoutable sleeping. */	127	/** Timeout used for timeoutable sleeping. */
128	timeout_t sleep_timeout;	128	timeout_t sleep_timeout;
129	/** Flag signalling sleep timeout in progress. */	129	/** Flag signalling sleep timeout in progress. */
130	volatile int timeout_pending;	130	volatile int timeout_pending;
131		131
132	/**	132	/**
133	* True if this thread is executing copy_from_uspace().	133	* True if this thread is executing copy_from_uspace().
134	* False otherwise.	134	* False otherwise.
135	*/	135	*/
136	bool in_copy_from_uspace;	136	bool in_copy_from_uspace;
137	/**	137	/**
138	* True if this thread is executing copy_to_uspace().	138	* True if this thread is executing copy_to_uspace().
139	* False otherwise.	139	* False otherwise.
140	*/	140	*/
141	bool in_copy_to_uspace;	141	bool in_copy_to_uspace;
142		142
143	/**	143	/**
144	* If true, the thread will not go to sleep at all and will call	144	* If true, the thread will not go to sleep at all and will call
145	* thread_exit() before returning to userspace.	145	* thread_exit() before returning to userspace.
146	*/	146	*/
147	bool interrupted;	147	bool interrupted;
148		148
149	/** If true, thread_join_timeout() cannot be used on this thread. */	149	/** If true, thread_join_timeout() cannot be used on this thread. */
150	bool detached;	150	bool detached;
151	/** Waitq for thread_join_timeout(). */	151	/** Waitq for thread_join_timeout(). */
152	waitq_t join_wq;	152	waitq_t join_wq;
153	/** Link used in the joiner_head list. */	153	/** Link used in the joiner_head list. */
154	link_t joiner_link;	154	link_t joiner_link;
155		155
156	fpu_context_t *saved_fpu_context;	156	fpu_context_t *saved_fpu_context;
157	int fpu_context_exists;	157	int fpu_context_exists;
158		158
159	/*	159	/*
160	* Defined only if thread doesn't run.	160	* Defined only if thread doesn't run.
161	* It means that fpu context is in CPU that last time executes this	161	* It means that fpu context is in CPU that last time executes this
162	* thread. This disables migration.	162	* thread. This disables migration.
163	*/	163	*/
164	int fpu_context_engaged;	164	int fpu_context_engaged;
165		165
166	rwlock_type_t rwlock_holder_type;	166	rwlock_type_t rwlock_holder_type;
167		167
168	/** Callback fired in scheduler before the thread is put asleep. */	168	/** Callback fired in scheduler before the thread is put asleep. */
169	void (* call_me)(void *);	169	void (* call_me)(void *);
170	/** Argument passed to call_me(). */	170	/** Argument passed to call_me(). */
171	void *call_me_with;	171	void *call_me_with;
172		172
173	/** Thread's state. */	173	/** Thread's state. */
174	state_t state;	174	state_t state;
175	/** Thread's flags. */	175	/** Thread's flags. */
176	int flags;	176	int flags;
177		177
178	/** Thread's CPU. */	178	/** Thread's CPU. */
179	cpu_t *cpu;	179	cpu_t *cpu;
180	/** Containing task. */	180	/** Containing task. */
181	task_t *task;	181	task_t *task;
182		182
183	/** Ticks before preemption. */	183	/** Ticks before preemption. */
184	uint64_t ticks;	184	uint64_t ticks;
185		185
186	/** Thread accounting. */	186	/** Thread accounting. */
187	uint64_t cycles;	187	uint64_t cycles;
188	/** Last sampled cycle. */	188	/** Last sampled cycle. */
189	uint64_t last_cycle;	189	uint64_t last_cycle;
190	/** Thread doesn't affect accumulated accounting. */	190	/** Thread doesn't affect accumulated accounting. */
191	bool uncounted;	191	bool uncounted;
192		192
193	/** Thread's priority. Implemented as index to CPU->rq */	193	/** Thread's priority. Implemented as index to CPU->rq */
194	int priority;	194	int priority;
195	/** Thread ID. */	195	/** Thread ID. */
196	thread_id_t tid;	196	thread_id_t tid;
197		197
198	/** Architecture-specific data. */	198	/** Architecture-specific data. */
199	thread_arch_t arch;	199	thread_arch_t arch;
200		200
201	/** Thread's kernel stack. */	201	/** Thread's kernel stack. */
202	uint8_t *kstack;	202	uint8_t *kstack;
203	} thread_t;	203	} thread_t;
204		204
205	/** Thread list lock.	205	/** Thread list lock.
206	*	206	*
207	* This lock protects all link_t structures chained in threads_head.	207	* This lock protects all link_t structures chained in threads_head.
208	* Must be acquired before T.lock for each T of type thread_t.	208	* Must be acquired before T.lock for each T of type thread_t.
209	*	209	*
210	*/	210	*/
211	SPINLOCK_EXTERN(threads_lock);	211	SPINLOCK_EXTERN(threads_lock);
212		212
213	/** B+tree containing all threads. */	213	/** B+tree containing all threads. */
214	extern btree_t threads_btree;	214	extern btree_t threads_btree;
215		215
216	extern void thread_init(void);	216	extern void thread_init(void);
217	extern thread_t thread_create(void ( func)(void ), void arg, task_t *task,	217	extern thread_t thread_create(void ( func)(void ), void arg, task_t *task,
218	int flags, char *name, bool uncounted);	218	int flags, char *name, bool uncounted);
219	extern void thread_attach(thread_t t, task_t task);	219	extern void thread_attach(thread_t t, task_t task);
220	extern void thread_ready(thread_t *t);	220	extern void thread_ready(thread_t *t);
221	extern void thread_exit(void) __attribute__((noreturn));	221	extern void thread_exit(void) __attribute__((noreturn));
222		222
223	#ifndef thread_create_arch	223	#ifndef thread_create_arch
224	extern void thread_create_arch(thread_t *t);	224	extern void thread_create_arch(thread_t *t);
225	#endif	225	#endif
226	#ifndef thr_constructor_arch	226	#ifndef thr_constructor_arch
227	extern void thr_constructor_arch(thread_t *t);	227	extern void thr_constructor_arch(thread_t *t);
228	#endif	228	#endif
229	#ifndef thr_destructor_arch	229	#ifndef thr_destructor_arch
230	extern void thr_destructor_arch(thread_t *t);	230	extern void thr_destructor_arch(thread_t *t);
231	#endif	231	#endif
232		232
233	extern void thread_sleep(uint32_t sec);	233	extern void thread_sleep(uint32_t sec);
234	extern void thread_usleep(uint32_t usec);	234	extern void thread_usleep(uint32_t usec);
235		235
236	#define thread_join(t) \	236	#define thread_join(t) \
237	thread_join_timeout((t), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)	237	thread_join_timeout((t), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)
238	extern int thread_join_timeout(thread_t *t, uint32_t usec, int flags);	238	extern int thread_join_timeout(thread_t *t, uint32_t usec, int flags);
239	extern void thread_detach(thread_t *t);	239	extern void thread_detach(thread_t *t);
240		240
241	extern void thread_register_call_me(void (* call_me)(void *),	241	extern void thread_register_call_me(void (* call_me)(void *),
242	void *call_me_with);	242	void *call_me_with);
243	extern void thread_print_list(void);	243	extern void thread_print_list(void);
244	extern void thread_destroy(thread_t *t);	244	extern void thread_destroy(thread_t *t);
245	extern void thread_update_accounting(void);	245	extern void thread_update_accounting(void);
246	extern bool thread_exists(thread_t *t);	246	extern bool thread_exists(thread_t *t);
247		247
248	/** Fpu context slab cache. */	248	/** Fpu context slab cache. */
249	extern slab_cache_t *fpu_context_slab;	249	extern slab_cache_t *fpu_context_slab;
250		250
251	/* Thread syscall prototypes. */	251	/* Thread syscall prototypes. */
252	extern unative_t sys_thread_create(uspace_arg_t uspace_uarg, char uspace_name, thread_id_t *uspace_thread_id);	252	extern unative_t sys_thread_create(uspace_arg_t uspace_uarg, char uspace_name, thread_id_t *uspace_thread_id);
253	extern unative_t sys_thread_exit(int uspace_status);	253	extern unative_t sys_thread_exit(int uspace_status);
254	extern unative_t sys_thread_get_id(thread_id_t *uspace_thread_id);	254	extern unative_t sys_thread_get_id(thread_id_t *uspace_thread_id);
255		255
256	#endif	256	#endif
257		257
258	/** @}	258	/** @}
259	*/	259	*/
260		260

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/include/proc/thread.h – Rev 2446 → 2451