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 <arch/proc/thread.h>
#include <synch/spinlock.h>
#include <arch/context.h>
#include <fpu_context.h>
#include <arch/types.h>
#include <typedefs.h>
#include <time/timeout.h>
#include <synch/rwlock.h>
#include <synch/synch.h>
#include <config.h>
#include <adt/btree.h>
#include <adt/list.h>
#include <mm/slab.h>
#include <proc/uarg.h>
 
#define THREAD_STACK_SIZE   STACK_SIZE
 
/** Thread states. */
enum state {
    Invalid,    /**< It is an error, if thread is found in this state. */
    Running,    /**< State of a thread that is currently executing on some CPU. */
    Sleeping,   /**< Thread in this state is waiting for an event. */
    Ready,      /**< State of threads in a run queue. */
    Entering,   /**< Threads are in this state before they are first readied. */
    Exiting,    /**< After a thread calls thread_exit(), it is put into Exiting state. */
    Undead      /**< Threads that were not detached but exited are in the Undead state. */
};
 
extern char *thread_states[];
 
/** 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 flags */
#define THREAD_FLAG_WIRED   (1<<0)  /**< Thread cannot be migrated to another CPU. */
#define THREAD_FLAG_STOLEN  (1<<1)  /**< Thread was migrated to another CPU and has not run yet. */
#define THREAD_FLAG_USPACE  (1<<2)  /**< Thread executes in userspace. */
 
#define THREAD_NAME_BUFLEN  20
 
/** Thread structure. There is one per thread. */
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];
 
    void (* thread_code)(void *);       /**< Function implementing the thread. */
    void *thread_arg;           /**< Argument passed to thread_code() function. */
 
    /** 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;
 
    bool sleep_interruptible;       /**< If true, the thread can be interrupted from sleep. */
    waitq_t *sleep_queue;           /**< Wait queue in which this thread sleeps. */
    timeout_t sleep_timeout;        /**< Timeout used for timeoutable sleeping.  */
    volatile int timeout_pending;       /**< Flag signalling sleep timeout in progress. */
 
    /** 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;          
   
    thread_join_type_t  join_type;  /**< Who joinins the thread. */
    bool detached;              /**< If true, thread_join_timeout() cannot be used on this thread. */
    waitq_t join_wq;            /**< Waitq for thread_join_timeout(). */
 
    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;
 
    void (* call_me)(void *);       /**< Funtion to be called in scheduler before the thread is put asleep. */
    void *call_me_with;         /**< Argument passed to call_me(). */
 
    state_t state;              /**< Thread's state. */
    int flags;              /**< Thread's flags. */
   
    cpu_t *cpu;             /**< Thread's CPU. */
    task_t *task;               /**< Containing task. */
 
    uint64_t ticks;             /**< Ticks before preemption. */
   
    uint64_t cycles;            /**< Thread accounting. */
    uint64_t last_cycle;        /**< Last sampled cycle. */
    bool uncounted;             /**< Thread doesn't affect accumulated accounting. */
 
    int priority;               /**< Thread's priority. Implemented as index to CPU->rq */
    uint32_t tid;               /**< Thread ID. */
   
    thread_arch_t arch;         /**< Architecture-specific data. */
 
    uint8_t *kstack;            /**< Thread's kernel stack. */
};
 
/** 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.
 *
 */
extern spinlock_t threads_lock;
 
extern btree_t threads_btree;           /**< B+tree containing all threads. */
 
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_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. */
unative_t sys_thread_create(uspace_arg_t *uspace_uarg, char *uspace_name);
unative_t sys_thread_exit(int uspace_status);
 
#endif
 
/** @}
 */
 

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/include/proc/thread.h – Rev 2042 → 2071

Rev 2042		Rev 2071
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 <arch/proc/thread.h>	38	#include <arch/proc/thread.h>
39	#include <synch/spinlock.h>	39	#include <synch/spinlock.h>
40	#include <arch/context.h>	40	#include <arch/context.h>
41	#include <fpu_context.h>	41	#include <fpu_context.h>
42	#include <arch/types.h>	42	#include <arch/types.h>
43	#include <typedefs.h>	43	#include <typedefs.h>
44	#include <time/timeout.h>	44	#include <time/timeout.h>
45	#include <synch/rwlock.h>	45	#include <synch/rwlock.h>
46	#include <synch/synch.h>	46	#include <synch/synch.h>
47	#include <config.h>	47	#include <config.h>
48	#include <adt/btree.h>	48	#include <adt/btree.h>
49	#include <adt/list.h>	49	#include <adt/list.h>
50	#include <mm/slab.h>	50	#include <mm/slab.h>
51	#include <proc/uarg.h>	51	#include <proc/uarg.h>
52		52
53	#define THREAD_STACK_SIZE STACK_SIZE	53	#define THREAD_STACK_SIZE STACK_SIZE
54		54
55	/** Thread states. */	55	/** Thread states. */
56	enum state {	56	enum state {
57	Invalid, /*< It is an error, if thread is found in this state. /	57	Invalid, /*< It is an error, if thread is found in this state. /
58	Running, /*< State of a thread that is currently executing on some CPU. /	58	Running, /*< State of a thread that is currently executing on some CPU. /
59	Sleeping, /*< Thread in this state is waiting for an event. /	59	Sleeping, /*< Thread in this state is waiting for an event. /
60	Ready, /*< State of threads in a run queue. /	60	Ready, /*< State of threads in a run queue. /
61	Entering, /*< Threads are in this state before they are first readied. /	61	Entering, /*< Threads are in this state before they are first readied. /
62	Exiting, /*< After a thread calls thread_exit(), it is put into Exiting state. /	62	Exiting, /*< After a thread calls thread_exit(), it is put into Exiting state. /
63	Undead /*< Threads that were not detached but exited are in the Undead state. /	63	Undead /*< Threads that were not detached but exited are in the Undead state. /
64	};	64	};
65		65
66	extern char *thread_states[];	66	extern char *thread_states[];
67		67
68	/** Join types. */	68	/** Join types. */
69	typedef enum {	69	typedef enum {
70	None,	70	None,
71	TaskClnp, /*< The thread will be joined by ktaskclnp thread. /	71	TaskClnp, /*< The thread will be joined by ktaskclnp thread. /
72	TaskGC /*< The thread will be joined by ktaskgc thread. /	72	TaskGC /*< The thread will be joined by ktaskgc thread. /
73	} thread_join_type_t;	73	} thread_join_type_t;
74		74
75	/* Thread flags */	75	/* Thread flags */
76	#define THREAD_FLAG_WIRED (1<<0) /*< Thread cannot be migrated to another CPU. /	76	#define THREAD_FLAG_WIRED (1<<0) /*< Thread cannot be migrated to another CPU. /
77	#define THREAD_FLAG_STOLEN (1<<1) /*< Thread was migrated to another CPU and has not run yet. /	77	#define THREAD_FLAG_STOLEN (1<<1) /*< Thread was migrated to another CPU and has not run yet. /
78	#define THREAD_FLAG_USPACE (1<<2) /*< Thread executes in userspace. /	78	#define THREAD_FLAG_USPACE (1<<2) /*< Thread executes in userspace. /
79		79
80	#define THREAD_NAME_BUFLEN 20	80	#define THREAD_NAME_BUFLEN 20
81		81
82	/** Thread structure. There is one per thread. */	82	/** Thread structure. There is one per thread. */
83	struct thread {	83	struct thread {
84	link_t rq_link; /*< Run queue link. /	84	link_t rq_link; /*< Run queue link. /
85	link_t wq_link; /*< Wait queue link. /	85	link_t wq_link; /*< Wait queue link. /
86	link_t th_link; /*< Links to threads within containing task. /	86	link_t th_link; /*< Links to threads within containing task. /
87		87
88	/** Lock protecting thread structure.	88	/** Lock protecting thread structure.
89	*	89	*
90	* Protects the whole thread structure except list links above.	90	* Protects the whole thread structure except list links above.
91	*/	91	*/
92	SPINLOCK_DECLARE(lock);	92	SPINLOCK_DECLARE(lock);
93		93
94	char name[THREAD_NAME_BUFLEN];	94	char name[THREAD_NAME_BUFLEN];
95		95
96	void (* thread_code)(void ); /< Function implementing the thread. /	96	void (* thread_code)(void ); /< Function implementing the thread. /
97	void thread_arg; /< Argument passed to thread_code() function. /	97	void thread_arg; /< Argument passed to thread_code() function. /
98		98
99	/** From here, the stored context is restored when the thread is scheduled. */	99	/** From here, the stored context is restored when the thread is scheduled. */
100	context_t saved_context;	100	context_t saved_context;
101	/** From here, the stored timeout context is restored when sleep times out. */	101	/** From here, the stored timeout context is restored when sleep times out. */
102	context_t sleep_timeout_context;	102	context_t sleep_timeout_context;
103	/** From here, the stored interruption context is restored when sleep is interrupted. */	103	/** From here, the stored interruption context is restored when sleep is interrupted. */
104	context_t sleep_interruption_context;	104	context_t sleep_interruption_context;
105		105
106	bool sleep_interruptible; /*< If true, the thread can be interrupted from sleep. /	106	bool sleep_interruptible; /*< If true, the thread can be interrupted from sleep. /
107	waitq_t sleep_queue; /< Wait queue in which this thread sleeps. /	107	waitq_t sleep_queue; /< Wait queue in which this thread sleeps. /
108	timeout_t sleep_timeout; /*< Timeout used for timeoutable sleeping. /	108	timeout_t sleep_timeout; /*< Timeout used for timeoutable sleeping. /
109	volatile int timeout_pending; /*< Flag signalling sleep timeout in progress. /	109	volatile int timeout_pending; /*< Flag signalling sleep timeout in progress. /
110		110
111	/** True if this thread is executing copy_from_uspace(). False otherwise. */	111	/** True if this thread is executing copy_from_uspace(). False otherwise. */
112	bool in_copy_from_uspace;	112	bool in_copy_from_uspace;
113	/** True if this thread is executing copy_to_uspace(). False otherwise. */	113	/** True if this thread is executing copy_to_uspace(). False otherwise. */
114	bool in_copy_to_uspace;	114	bool in_copy_to_uspace;
115		115
116	/**	116	/**
117	* If true, the thread will not go to sleep at all and will	117	* If true, the thread will not go to sleep at all and will
118	* call thread_exit() before returning to userspace.	118	* call thread_exit() before returning to userspace.
119	*/	119	*/
120	bool interrupted;	120	bool interrupted;
121		121
122	thread_join_type_t join_type; /*< Who joinins the thread. /	122	thread_join_type_t join_type; /*< Who joinins the thread. /
123	bool detached; /*< If true, thread_join_timeout() cannot be used on this thread. /	123	bool detached; /*< If true, thread_join_timeout() cannot be used on this thread. /
124	waitq_t join_wq; /*< Waitq for thread_join_timeout(). /	124	waitq_t join_wq; /*< Waitq for thread_join_timeout(). /
125		125
126	fpu_context_t *saved_fpu_context;	126	fpu_context_t *saved_fpu_context;
127	int fpu_context_exists;	127	int fpu_context_exists;
128		128
129	/*	129	/*
130	* Defined only if thread doesn't run.	130	* Defined only if thread doesn't run.
131	* It means that fpu context is in CPU that last time executes this thread.	131	* It means that fpu context is in CPU that last time executes this thread.
132	* This disables migration.	132	* This disables migration.
133	*/	133	*/
134	int fpu_context_engaged;	134	int fpu_context_engaged;
135		135
136	rwlock_type_t rwlock_holder_type;	136	rwlock_type_t rwlock_holder_type;
137		137
138	void (* call_me)(void ); /< Funtion to be called in scheduler before the thread is put asleep. /	138	void (* call_me)(void ); /< Funtion to be called in scheduler before the thread is put asleep. /
139	void call_me_with; /< Argument passed to call_me(). /	139	void call_me_with; /< Argument passed to call_me(). /
140		140
141	state_t state; /*< Thread's state. /	141	state_t state; /*< Thread's state. /
142	int flags; /*< Thread's flags. /	142	int flags; /*< Thread's flags. /
143		143
144	cpu_t cpu; /< Thread's CPU. /	144	cpu_t cpu; /< Thread's CPU. /
145	task_t task; /< Containing task. /	145	task_t task; /< Containing task. /
146		146
147	uint64_t ticks; /*< Ticks before preemption. /	147	uint64_t ticks; /*< Ticks before preemption. /
148		148
149	uint64_t cycles; /*< Thread accounting. /	149	uint64_t cycles; /*< Thread accounting. /
150	uint64_t last_cycle; /*< Last sampled cycle. /	150	uint64_t last_cycle; /*< Last sampled cycle. /
151	bool uncounted; /*< Thread doesn't affect accumulated accounting. /	151	bool uncounted; /*< Thread doesn't affect accumulated accounting. /
152		152
153	int priority; /*< Thread's priority. Implemented as index to CPU->rq /	153	int priority; /*< Thread's priority. Implemented as index to CPU->rq /
154	uint32_t tid; /*< Thread ID. /	154	uint32_t tid; /*< Thread ID. /
155		155
156	thread_arch_t arch; /*< Architecture-specific data. /	156	thread_arch_t arch; /*< Architecture-specific data. /
157		157
158	uint8_t kstack; /< Thread's kernel stack. /	158	uint8_t kstack; /< Thread's kernel stack. /
159	};	159	};
160		160
161	/** Thread list lock.	161	/** Thread list lock.
162	*	162	*
163	* This lock protects all link_t structures chained in threads_head.	163	* This lock protects all link_t structures chained in threads_head.
164	* Must be acquired before T.lock for each T of type thread_t.	164	* Must be acquired before T.lock for each T of type thread_t.
165	*	165	*
166	*/	166	*/
167	extern spinlock_t threads_lock;	167	extern spinlock_t threads_lock;
168		168
169	extern btree_t threads_btree; /*< B+tree containing all threads. /	169	extern btree_t threads_btree; /*< B+tree containing all threads. /
170		170
171	extern void thread_init(void);	171	extern void thread_init(void);
172	extern thread_t thread_create(void ( func)(void ), void arg, task_t task, int flags, char name, bool uncounted);	172	extern thread_t thread_create(void ( func)(void ), void arg, task_t task, int flags, char name, bool uncounted);
173	extern void thread_ready(thread_t *t);	173	extern void thread_ready(thread_t *t);
174	extern void thread_exit(void) __attribute__((noreturn));	174	extern void thread_exit(void) __attribute__((noreturn));
175		175
176	#ifndef thread_create_arch	176	#ifndef thread_create_arch
177	extern void thread_create_arch(thread_t *t);	177	extern void thread_create_arch(thread_t *t);
178	#endif	178	#endif
179	#ifndef thr_constructor_arch	179	#ifndef thr_constructor_arch
180	extern void thr_constructor_arch(thread_t *t);	180	extern void thr_constructor_arch(thread_t *t);
181	#endif	181	#endif
182	#ifndef thr_destructor_arch	182	#ifndef thr_destructor_arch
183	extern void thr_destructor_arch(thread_t *t);	183	extern void thr_destructor_arch(thread_t *t);
184	#endif	184	#endif
185		185
186	extern void thread_sleep(uint32_t sec);	186	extern void thread_sleep(uint32_t sec);
187	extern void thread_usleep(uint32_t usec);	187	extern void thread_usleep(uint32_t usec);
188		188
189	#define thread_join(t) thread_join_timeout((t), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)	189	#define thread_join(t) thread_join_timeout((t), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)
190	extern int thread_join_timeout(thread_t *t, uint32_t usec, int flags);	190	extern int thread_join_timeout(thread_t *t, uint32_t usec, int flags);
191	extern void thread_detach(thread_t *t);	191	extern void thread_detach(thread_t *t);
192		192
193	extern void thread_register_call_me(void (* call_me)(void ), void call_me_with);	193	extern void thread_register_call_me(void (* call_me)(void ), void call_me_with);
194	extern void thread_print_list(void);	194	extern void thread_print_list(void);
195	extern void thread_destroy(thread_t *t);	195	extern void thread_destroy(thread_t *t);
196	extern void thread_update_accounting(void);	196	extern void thread_update_accounting(void);
197	extern bool thread_exists(thread_t *t);	197	extern bool thread_exists(thread_t *t);
198		198
199	/* Fpu context slab cache */	199	/* Fpu context slab cache */
200	extern slab_cache_t *fpu_context_slab;	200	extern slab_cache_t *fpu_context_slab;
201		201
202	/** Thread syscall prototypes. */	202	/** Thread syscall prototypes. */
203	unative_t sys_thread_create(uspace_arg_t uspace_uarg, char uspace_name);	203	unative_t sys_thread_create(uspace_arg_t uspace_uarg, char uspace_name);
204	unative_t sys_thread_exit(int uspace_status);	204	unative_t sys_thread_exit(int uspace_status);
205		205
206	#endif	206	#endif
207		207
208	/** @}	208	/** @}
209	*/	209	*/
210		210