/*
* 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 <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
extern char *thread_states[];
/* 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. */
/** 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);
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);
extern void thread_interrupt_sleep(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
/** @}
*/