From df696a8d35be69cfe695188c86734c9878e7a0b1 Mon Sep 17 00:00:00 2001 From: "Michael I. Bushnell" Date: Tue, 1 Feb 1994 20:19:59 +0000 Subject: Initial revision --- libfshelp/fshelp.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 libfshelp/fshelp.h (limited to 'libfshelp/fshelp.h') diff --git a/libfshelp/fshelp.h b/libfshelp/fshelp.h new file mode 100644 index 00000000..e9474751 --- /dev/null +++ b/libfshelp/fshelp.h @@ -0,0 +1,54 @@ +/* FS helper library definitions + Copyright (C) 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. */ + +/* This library implements various things that are generic to + all or most implementors of the filesystem protocol. It + presumes that you are using the iohelp library as well. It + is divided into separate facilities which may be used independently. */ + + +/* Translator linkage. These routines only work for multi-threaded + servers, and assume you are using the ports library. */ + +/* Define one of these structures as part of every disk node. */ +struct trans_link +{ + /* control port for the child filesystem */ + fsys_t control; + + /* this is woken up when fsys_startup is receieved + from the child filesystem. */ + struct condition initwait; + + /* This indicates that someone has already started up the translator */ + int starting; +}; + +/* The user must define this variable. This is the libports type for + bootstrap ports given to newly started translators. */ +extern int fshelp_transboot_port_type; + +/* Call this before calling any of the other translator linkage routines, + normally from your main node initialization routine. */ +void fshelp_init_trans_link (struct trans_link *LINK); + +/* Call this when the CONTROL field of a translator is null and + you want to have the translator started so you can talk to it. + LINK is the trans_link structure for this node; NAME is the file + to execute as the translator. +*/ +void fshelp_start_translator -- cgit v1.2.3