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