FreeBSD/Linux Kernel Cross Reference
sys/compat/cloudabi/cloudabi_thread.c

     /*-
      * Copyright (c) 2015 Nuxi, https://nuxi.nl/
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
      * 2. 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/11.2/sys/compat/cloudabi/cloudabi_thread.c 307144 2016-10-12 12:17:41Z ed $");
    
    #include <sys/param.h>
    #include <sys/proc.h>
    #include <sys/sched.h>
    #include <sys/syscallsubr.h>
    #include <sys/umtx.h>
    
    #include <contrib/cloudabi/cloudabi_types_common.h>
    
    #include <compat/cloudabi/cloudabi_proto.h>
    
    int
    cloudabi_sys_thread_exit(struct thread *td,
        struct cloudabi_sys_thread_exit_args *uap)
    {
            struct cloudabi_sys_lock_unlock_args cloudabi_sys_lock_unlock_args = {
                    .lock = uap->lock,
                    .scope = uap->scope,
            };
    
            umtx_thread_exit(td);
    
            /* Wake up joining thread. */
            cloudabi_sys_lock_unlock(td, &cloudabi_sys_lock_unlock_args);
    
            /*
             * Attempt to terminate the thread. Terminate the process if
             * it's the last thread.
             */
            kern_thr_exit(td);
            exit1(td, 0, 0);
            /* NOTREACHED */
    }
    
    int
    cloudabi_sys_thread_yield(struct thread *td,
        struct cloudabi_sys_thread_yield_args *uap)
    {
    
            sched_relinquish(td);
            return (0);
    }

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