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/*
KSysGuard, the KDE System Guard
Copyright (c) 1999 - 2001 Chris Schlaeger <cs@kde.org>
This program is free software; you can redistribute it and/or
modify it under the terms of version 2 of the GNU General Public
License as published by the Free Software Foundation.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <fcntl.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "Command.h"
#include "ksysguardd.h"
#include "apm.h"
static int ApmOK = 0;
static int BatFill, BatTime;
#define APMBUFSIZE 128
static char ApmBuf[ APMBUFSIZE ];
static int Dirty = 0;
static void processApm( void )
{
sscanf( ApmBuf, "%*f %*f %*x %*x %*x %*x %d%% %d min",
&BatFill, &BatTime );
Dirty = 0;
}
/*
================================ public part =================================
*/
void initApm( struct SensorModul* sm )
{
if ( updateApm() < 0 ) {
ApmOK = -1;
return;
} else
ApmOK = 1;
registerMonitor( "apm/batterycharge", "integer", printApmBatFill, printApmBatFillInfo, sm );
registerMonitor( "apm/remainingtime", "integer", printApmBatTime, printApmBatTimeInfo, sm );
}
void exitApm( void )
{
ApmOK = -1;
}
int updateApm( void )
{
size_t n;
int fd;
if ( ApmOK < 0 )
return -1;
if ( ( fd = open( "/proc/apm", O_RDONLY ) ) < 0 ) {
if ( ApmOK != 0 )
print_error( "Cannot open file \'/proc/apm\'!\n"
"The kernel needs to be compiled with support\n"
"for /proc filesystem enabled!\n" );
return -1;
}
if ( ( n = read( fd, ApmBuf, APMBUFSIZE - 1 ) ) == APMBUFSIZE - 1 ) {
log_error( "Internal buffer too small to read \'/proc/apm\'" );
close( fd );
return -1;
}
close( fd );
ApmBuf[ n ] = '\0';
Dirty = 1;
return 0;
}
void printApmBatFill( const char* cmd )
{
(void)cmd;
if ( Dirty )
processApm();
fprintf( CurrentClient, "%d\n", BatFill );
}
void printApmBatFillInfo( const char* cmd )
{
(void)cmd;
fprintf( CurrentClient, "Battery charge\t0\t100\t%%\n" );
}
void printApmBatTime( const char* cmd )
{
(void)cmd;
if ( Dirty )
processApm();
fprintf( CurrentClient, "%d\n", BatTime );
}
void printApmBatTimeInfo( const char* cmd )
{
(void)cmd;
fprintf( CurrentClient, "Remaining battery time\t0\t0\tmin\n" );
}
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