libiohelp/initialize_conch.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

/* 
   Copyright (C) 1993, 1994 Free Software Foundation

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2, or (at
   your option) any later version.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */

#include "ioserver.h"

/* Called by an I/O server to initialize a conch structure C; 
   M will be used to lock conch data structures.  */
void
initialize_conch (struct conch *c, struct mutex *m)
{
  c->lock = m;
  condition_init (&c->wait);
  c->holder = 0;
  c->holder_shared_page = 0;
}