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      1 /*	$NetBSD: rumpfiber.h,v 1.4 2015/02/15 00:54:32 justin Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2014 Justin Cormack.  All Rights Reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     16  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     18  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/queue.h>
     29 
     30 #include <stdint.h>
     31 #include <string.h>
     32 #include <time.h>
     33 #include <ucontext.h>
     34 #include <unistd.h>
     35 
     36 struct thread {
     37     char *name;
     38     void *lwp;
     39     void *cookie;
     40     int64_t wakeup_time;
     41     TAILQ_ENTRY(thread) thread_list;
     42     ucontext_t ctx;
     43     int flags;
     44     int threrrno;
     45 };
     46 
     47 #define RUNNABLE_FLAG   0x00000001
     48 #define THREAD_MUSTJOIN 0x00000002
     49 #define THREAD_JOINED   0x00000004
     50 #define THREAD_EXTSTACK 0x00000008
     51 #define THREAD_TIMEDOUT 0x00000010
     52 
     53 #define STACKSIZE 65536
     54 
     55 /* used by experimental _lwp code */
     56 void schedule(void);
     57 void wake(struct thread *thread);
     58 void block(struct thread *thread);
     59 struct thread *init_mainthread(void *);
     60 void exit_thread(void) __attribute__((noreturn));
     61 void set_sched_hook(void (*f)(void *, void *));
     62 int abssleep_real(uint64_t millisecs);
     63 struct thread* create_thread(const char *name, void *cookie,
     64 			     void (*f)(void *), void *data,
     65 			     void *stack, size_t stack_size);
     66 int is_runnable(struct thread *);
     67 void set_runnable(struct thread *);
     68 void clear_runnable(struct thread *);
     69 
     70