freebsd-dev/usr.sbin/apmd/apmdparse.y
Mitsuru IWASAKI d50a71bdd8 The apmd package provides a means of handling various APM events from
userland code.  Using apmd.conf, the apmd(8) configuration file, you
can select the APM events to be handled from userland and specify the
commands for a given event, allowing APM behaviour to be configured
flexibly.

Have Fun!

Submitted by:	iwasaki, KOIE Hidetaka <hide@koie.org>
Reviewed by:	-hackers, -mobile and bsd-nomads ML folks.
Contributed by:	Warner Losh <imp@FreeBSD.org>,
	Hiroshi Yamashita <bluemoon@msj.biglobe.ne.jp>,
	Yoshihiko SARUMARU <mistral@imasy.or.jp>,
	Norihiro Kumagai <kuma@nk.rim.or.jp>,
	NAKAGAWA Yoshihisa <nakagawa@jp.FreeBSD.org>, and
	Nick Hilliard <nick@foobar.org>.
1999-07-10 17:39:36 +00:00

166 lines
3.5 KiB
Plaintext

%{
/*-
* APM (Advanced Power Management) Event Dispatcher
*
* Copyright (c) 1999 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
* Copyright (c) 1999 KOIE Hidetaka <koie@suri.co.jp>
* All rights reserved.
*
* 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.
*
* $Id: apmdparse.y,v 1.1.3.5 1999/06/08 09:01:47 koie Exp $
*/
#include <stdio.h>
#include <bitstring.h>
#include "apmd.h"
#ifdef DEBUG
#define YYDEBUG 1
#endif
extern int first_time;
%}
%union {
char *str;
bitstr_t bit_decl(evlist, EVENT_MAX);
int ev;
struct event_cmd * evcmd;
}
%token BEGINBLOCK ENDBLOCK
%token COMMA SEMICOLON
%token APMEVENT
%token EXECCMD REJECTCMD
%token <ev> EVENT
%token <str> STRING UNKNOWN
%type <str> string
%type <str> unknown
%type <evlist> event_list
%type <evcmd> cmd_list
%type <evcmd> cmd
%type <evcmd> exec_cmd reject_cmd
%%
config_file
: { first_time = 1; } config_list
;
config_list
: config
| config_list config
;
config
: apm_event_statement
;
apm_event_statement
: APMEVENT event_list BEGINBLOCK cmd_list ENDBLOCK
{
if (register_apm_event_handlers($2, $4) < 0)
abort(); /* XXX */
free_event_cmd_list($4);
}
;
event_list
: EVENT
{
bit_nclear($$, 0, EVENT_MAX - 1);
bit_set($$, $1);
}
| event_list COMMA EVENT
{
memcpy(&($$), &($1), bitstr_size(EVENT_MAX));
bit_set($$, $3);
}
;
cmd_list
: /* empty */
{
$$ = NULL;
}
| cmd_list cmd
{
struct event_cmd * p = $1;
if (p) {
while (p->next != NULL)
p = p->next;
p->next = $2;
$$ = $1;
} else {
$$ = $2;
}
}
;
cmd
: exec_cmd SEMICOLON { $$ = $1; }
| reject_cmd SEMICOLON { $$ = $1; }
;
exec_cmd
: EXECCMD string
{
size_t len = sizeof (struct event_cmd_exec);
struct event_cmd_exec *cmd = malloc(len);
cmd->evcmd.next = NULL;
cmd->evcmd.len = len;
cmd->evcmd.name = "exec";
cmd->evcmd.op = &event_cmd_exec_ops;
cmd->line = $2;
$$ = (struct event_cmd *) cmd;
}
;
reject_cmd
: REJECTCMD
{
size_t len = sizeof (struct event_cmd_reject);
struct event_cmd_reject *cmd = malloc(len);
cmd->evcmd.next = NULL;
cmd->evcmd.len = len;
cmd->evcmd.name = "reject";
cmd->evcmd.op = &event_cmd_reject_ops;
$$ = (struct event_cmd *) cmd;
}
;
string
: STRING { $$ = $1; }
;
unknown
: UNKNOWN
{
$$ = $1;
}
;
%%