The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/thr.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2003, Jeffrey Roberson <jeff@freebsd.org>
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice unmodified, this list of conditions, and the following
   12  *    disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD: stable/12/sys/sys/thr.h 326256 2017-11-27 15:01:59Z pfg $
   29  *
   30  */
   31 
   32 #ifndef _SYS_THR_H_
   33 #define _SYS_THR_H_
   34 
   35 #include <sys/cdefs.h>
   36 #include <sys/_types.h>
   37 #include <sys/sched.h>
   38 
   39 #ifndef _SIZE_T_DECLARED
   40 typedef __size_t        size_t;
   41 #define _SIZE_T_DECLARED
   42 #endif
   43 
   44 /* Create the thread in the suspended state. */
   45 #define THR_SUSPENDED           0x0001
   46 /* Create the system scope thread. */
   47 #define THR_SYSTEM_SCOPE        0x0002
   48 
   49 struct thr_param {
   50     void        (*start_func)(void *);  /* thread entry function. */
   51     void        *arg;                   /* argument for entry function. */
   52     char        *stack_base;            /* stack base address. */
   53     size_t      stack_size;             /* stack size. */
   54     char        *tls_base;              /* tls base address. */
   55     size_t      tls_size;               /* tls size. */
   56     long        *child_tid;             /* address to store new TID. */
   57     long        *parent_tid;            /* parent accesses the new TID here. */
   58     int         flags;                  /* thread flags. */
   59     struct rtprio       *rtp;           /* Real-time scheduling priority */
   60     void        *spare[3];              /* TODO: cpu affinity mask etc. */
   61 };
   62 
   63 /* 
   64  * See pthread_*
   65  */
   66 #ifndef _KERNEL
   67 #include <sys/ucontext.h>
   68 
   69 #ifndef _PID_T_DECLARED
   70 typedef __pid_t         pid_t;
   71 #define _PID_T_DECLARED
   72 #endif
   73 
   74 __BEGIN_DECLS
   75 int thr_create(ucontext_t *ctx, long *id, int flags);
   76 int thr_new(struct thr_param *param, int param_size);
   77 int thr_self(long *id);
   78 void thr_exit(long *state);
   79 int thr_kill(long id, int sig);
   80 int thr_kill2(pid_t pid, long id, int sig);
   81 int thr_suspend(const struct timespec *timeout);
   82 int thr_wake(long id);
   83 int thr_set_name(long id, const char *name);
   84 __END_DECLS
   85 #endif /* !_KERNEL */
   86 
   87 #endif /* ! _SYS_THR_H_ */

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