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 <[email protected]>
+
+    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 );
+}