root/kern/include/threadprivate.h

INCLUDED FROM

   1 /*
   2  * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
   3  *      The President and Fellows of Harvard College.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  30 #ifndef _THREADPRIVATE_H_
  31 #define _THREADPRIVATE_H_
  33 struct thread;          /* from <thread.h> */
  34 struct thread_machdep;  /* from <machine/thread.h> */
  35 struct switchframe;     /* from <machine/switchframe.h> */
  38 /*
  39  * Subsystem-private thread defs.
  40  *
  41  * This file is to be used only by the thread subsystem. However, it
  42  * has to be placed in the public include directory (rather than the
  43  * threads directory) so the machine-dependent thread code can include
  44  * it. This is one of the drawbacks of putting all machine-dependent
  45  * material in a single directory: it exposes what ought to be private
  46  * interfaces.
  47  */
  50 /*
  51  * Private thread functions.
  52  */
  54 /* Entry point for new threads. */
  55 void thread_startup(void (*entrypoint)(void *data1, unsigned long data2),
  56                     void *data1, unsigned long data2);
  58 /* Initialize or clean up the machine-dependent portion of struct thread */
  59 void thread_machdep_init(struct thread_machdep *tm);
  60 void thread_machdep_cleanup(struct thread_machdep *tm);
  62 /*
  63  * Machine-dependent functions for working on switchframes.
  64  *
  65  * Note that while the functions themselves are machine-dependent, their
  66  * declarations are not.
  67  */
  69 /* Assembler-level context switch. */
  70 void switchframe_switch(struct switchframe **prev, struct switchframe **next);
  72 /* Thread initialization */
  73 void switchframe_init(struct thread *,
  74                       void (*entrypoint)(void *data1, unsigned long data2),
  75                       void *data1, unsigned long data2);
  78 #endif /* _THREADPRIVATE_H_ */