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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit4aed2c8219774f5d797760606b8489a92ddc5163 (patch)
tree3f8c130f7d269626bf6a9447407ef6c35954426a /ksysguard/ksysguardd/Linux/cpuinfo.c
downloadtdebase-4aed2c8219774f5d797760606b8489a92ddc5163.tar.gz
tdebase-4aed2c8219774f5d797760606b8489a92ddc5163.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'ksysguard/ksysguardd/Linux/cpuinfo.c')
-rw-r--r--ksysguard/ksysguardd/Linux/cpuinfo.c179
1 files changed, 179 insertions, 0 deletions
diff --git a/ksysguard/ksysguardd/Linux/cpuinfo.c b/ksysguard/ksysguardd/Linux/cpuinfo.c
new file mode 100644
index 000000000..de5deb80f
--- /dev/null
+++ b/ksysguard/ksysguardd/Linux/cpuinfo.c
@@ -0,0 +1,179 @@
+/*
+ KSysGuard, the KDE System Guard
+
+ Copyright (c) 2000-2001 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 <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <time.h>
+
+#include "Command.h"
+#include "ksysguardd.h"
+
+#include "cpuinfo.h"
+
+static int CpuInfoOK = 0;
+static float* Clocks = 0;
+static int CPUs = 0;
+
+#define CPUINFOBUFSIZE (32 * 1024)
+static char CpuInfoBuf[ CPUINFOBUFSIZE ];
+static int Dirty = 0;
+static struct SensorModul *CpuInfoSM;
+
+static void processCpuInfo( void )
+{
+ char format[ 32 ];
+ char tag[ 32 ];
+ char value[ 256 ];
+ char* cibp = CpuInfoBuf;
+ int cpuId = 0;
+
+ if ( !CpuInfoOK )
+ return;
+
+ sprintf( format, "%%%d[^:]: %%%d[^\n]\n", (int)sizeof( tag ) - 1,
+ (int)sizeof( value ) - 1 );
+
+ while ( sscanf( cibp, format, tag, value ) == 2 ) {
+ char* p;
+ tag[ sizeof( tag ) - 1 ] = '\0';
+ value[ sizeof( value ) - 1 ] = '\0';
+ /* remove trailing whitespaces */
+ p = tag + strlen( tag ) - 1;
+ /* remove trailing whitespaces */
+ while ( ( *p == ' ' || *p == '\t' ) && p > tag )
+ *p-- = '\0';
+
+ if ( strcmp( tag, "processor" ) == 0 ) {
+ if ( sscanf( value, "%d", &cpuId ) == 1 ) {
+ if ( cpuId >= CPUs ) {
+ char cmdName[ 24 ];
+ if ( Clocks )
+ free( Clocks );
+ CPUs = cpuId + 1;
+ Clocks = malloc( CPUs * sizeof( float ) );
+ snprintf( cmdName, sizeof( cmdName ) - 1, "cpu%d/clock", cpuId );
+ registerMonitor( cmdName, "float", printCPUxClock, printCPUxClockInfo,
+ CpuInfoSM );
+ }
+ }
+ } else if ( strcmp( tag, "cpu MHz" ) == 0 )
+ sscanf( value, "%f", &Clocks[ cpuId ] );
+
+ /* Move cibp to begining of next line, if there is one. */
+ cibp = strchr( cibp, '\n' );
+ if ( cibp )
+ cibp++;
+ else
+ cibp = CpuInfoBuf + strlen( CpuInfoBuf );
+ }
+
+ Dirty = 0;
+}
+
+/*
+================================ public part =================================
+*/
+
+void initCpuInfo( struct SensorModul* sm )
+{
+ CpuInfoSM = sm;
+
+ if ( updateCpuInfo() < 0 )
+ return;
+
+ processCpuInfo();
+}
+
+void exitCpuInfo( void )
+{
+ CpuInfoOK = -1;
+
+ free( Clocks );
+}
+
+int updateCpuInfo( void )
+{
+ size_t n;
+ int fd;
+
+ if ( CpuInfoOK < 0 )
+ return -1;
+
+ if ( ( fd = open( "/proc/cpuinfo", O_RDONLY ) ) < 0 ) {
+ if ( CpuInfoOK != 0 )
+ print_error( "Cannot open file \'/proc/cpuinfo\'!\n"
+ "The kernel needs to be compiled with support\n"
+ "for /proc filesystem enabled!\n" );
+ CpuInfoOK = -1;
+ return -1;
+ }
+
+ n = 0;
+ for(;;) {
+ ssize_t len = read( fd, CpuInfoBuf + n, CPUINFOBUFSIZE - 1 - n );
+ if( len < 0 ) {
+ print_error( "Failed to read file \'/proc/cpuinfo\'!\n" );
+ CpuInfoOK = -1;
+ close( fd );
+ return -1;
+ }
+ n += len;
+ if( len == 0 ) /* reading finished */
+ break;
+ if( n == CPUINFOBUFSIZE - 1 ) {
+ log_error( "Internal buffer too small to read \'/proc/cpuinfo\'" );
+ CpuInfoOK = 0;
+ close( fd );
+ return -1;
+ }
+ }
+
+ close( fd );
+ CpuInfoOK = 1;
+ CpuInfoBuf[ n ] = '\0';
+ Dirty = 1;
+
+ return 0;
+}
+
+void printCPUxClock( const char* cmd )
+{
+ int id;
+
+ if ( Dirty )
+ processCpuInfo();
+
+ sscanf( cmd + 3, "%d", &id );
+ fprintf( CurrentClient, "%f\n", Clocks[ id ] );
+}
+
+void printCPUxClockInfo( const char* cmd )
+{
+ int id;
+
+ sscanf( cmd + 3, "%d", &id );
+ fprintf( CurrentClient, "CPU%d Clock Frequency\t0\t0\tMHz\n", id );
+}