0,0 → 1,117 |
/* |
* 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. |
*/ |
|
#ifndef __THREAD_H__ |
#define __THREAD_H__ |
|
#include <arch/thread.h> |
#include <proc/task.h> |
#include <synch/spinlock.h> |
#include <arch/context.h> |
#include <arch/types.h> |
#include <typedefs.h> |
#include <time/timeout.h> |
#include <synch/rwlock.h> |
#include <mm/page.h> |
#include <list.h> |
|
#define THREAD_STACK_SIZE PAGE_SIZE |
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#define THREAD_USER_STACK 1 |
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enum state { |
Invalid, |
Running, |
Sleeping, |
Ready, |
Entering, |
Exiting |
}; |
|
extern char *thread_states[]; |
|
#define X_WIRED (1<<0) |
#define X_STOLEN (1<<1) |
|
struct thread { |
link_t rq_link; /* run queue link */ |
link_t wq_link; /* wait queue link */ |
link_t th_link; /* links to threads within the parent task*/ |
link_t threads_link; |
|
/* items below are protected by lock */ |
spinlock_t lock; |
|
void (* thread_code)(void *); |
void *thread_arg; |
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context_t saved_context; |
context_t sleep_timeout_context; |
|
waitq_t *sleep_queue; |
timeout_t sleep_timeout; |
volatile int timeout_pending; |
|
rwlock_type_t rwlock_holder_type; |
void (* call_me)(void *); |
void *call_me_with; |
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int state; |
int flags; |
|
cpu_t *cpu; |
task_t *task; |
|
__u64 ticks; |
|
__u32 tid; |
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int pri; |
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ARCH_THREAD_DATA; |
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__u8 *kstack; |
__u8 *ustack; |
}; |
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extern spinlock_t threads_lock; |
extern link_t threads_head; |
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static void cushion(void); |
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extern void thread_init(void); |
extern thread_t *thread_create(void (* func)(void *), void *arg, task_t *task, int flags); |
extern void thread_ready(thread_t *t); |
extern void thread_exit(void); |
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extern void thread_sleep(__u32 sec); |
extern void thread_usleep(__u32 usec); |
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extern void thread_register_call_me(void (* call_me)(void *), void *call_me_with); |
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#endif |