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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/NetBSD/CPU.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/NetBSD/CPU.c')
-rw-r--r--ksysguard/ksysguardd/NetBSD/CPU.c206
1 files changed, 206 insertions, 0 deletions
diff --git a/ksysguard/ksysguardd/NetBSD/CPU.c b/ksysguard/ksysguardd/NetBSD/CPU.c
new file mode 100644
index 000000000..959924087
--- /dev/null
+++ b/ksysguard/ksysguardd/NetBSD/CPU.c
@@ -0,0 +1,206 @@
+/*
+ KSysGuard, the KDE System Guard
+
+ Copyright (c) 1999 Chris Schlaeger <cs@kde.org>
+
+ 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 of the License, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+*/
+
+#include <sys/dkstat.h>
+#include <sys/sched.h> /* CPUSTATES */
+#include <fcntl.h>
+#include <kvm.h>
+#include <nlist.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "CPU.h"
+#include "Command.h"
+#include "ksysguardd.h"
+
+long percentages(int cnt, int *out, long *new, long *old, long *diffs);
+
+struct nlist my_nlist[] = {
+ {"_cp_time"},
+ { 0 }
+};
+
+kvm_t *kd;
+
+unsigned long cp_time_offset;
+
+long cp_time[CPUSTATES];
+long cp_old[CPUSTATES];
+long cp_diff[CPUSTATES];
+int cpu_states[CPUSTATES];
+
+void
+initCpuInfo(struct SensorModul* sm)
+{
+ /* Total CPU load */
+ registerMonitor("cpu/user", "integer", printCPUUser,
+ printCPUUserInfo, sm);
+ registerMonitor("cpu/nice", "integer", printCPUNice,
+ printCPUNiceInfo, sm);
+ registerMonitor("cpu/sys", "integer", printCPUSys,
+ printCPUSysInfo, sm);
+ registerMonitor("cpu/idle", "integer", printCPUIdle,
+ printCPUIdleInfo, sm);
+ kd = kvm_open(NULL, NULL, NULL, O_RDONLY, "kvm_open");
+ kvm_nlist(kd, my_nlist);
+ cp_time_offset = my_nlist[0].n_value;
+
+ updateCpuInfo();
+}
+
+void
+exitCpuInfo(void)
+{
+ kvm_close(kd);
+}
+
+int
+updateCpuInfo(void)
+{
+ kvm_read(kd, cp_time_offset, (char *)cp_time, sizeof(cp_time));
+ percentages(CPUSTATES, cpu_states, cp_time, cp_old, cp_diff);
+ return (0);
+}
+
+void
+printCPUUser(const char* cmd)
+{
+ fprintf(CurrentClient, "%d\n", cpu_states[CP_USER]/10);
+}
+
+void
+printCPUUserInfo(const char* cmd)
+{
+ fprintf(CurrentClient, "CPU User Load\t0\t100\t%%\n");
+}
+
+void
+printCPUNice(const char* cmd)
+{
+ fprintf(CurrentClient, "%d\n", cpu_states[CP_NICE]/10);
+}
+
+void
+printCPUNiceInfo(const char* cmd)
+{
+ fprintf(CurrentClient, "CPU Nice Load\t0\t100\t%%\n");
+}
+
+void
+printCPUSys(const char* cmd)
+{
+ fprintf(CurrentClient, "%d\n", cpu_states[CP_SYS]/10);
+}
+
+void
+printCPUSysInfo(const char* cmd)
+{
+ fprintf(CurrentClient, "CPU System Load\t0\t100\t%%\n");
+}
+
+void
+printCPUIdle(const char* cmd)
+{
+ fprintf(CurrentClient, "%d\n", cpu_states[CP_IDLE]/10);
+}
+
+void
+printCPUIdleInfo(const char* cmd)
+{
+ fprintf(CurrentClient, "CPU Idle Load\t0\t100\t%%\n");
+}
+
+
+/* The part ripped from top... */
+/*
+ * Top users/processes display for Unix
+ * Version 3
+ *
+ * This program may be freely redistributed,
+ * but this entire comment MUST remain intact.
+ *
+ * Copyright (c) 1984, 1989, William LeFebvre, Rice University
+ * Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
+ */
+
+/*
+ * percentages(cnt, out, new, old, diffs) - calculate percentage change
+ * between array "old" and "new", putting the percentages i "out".
+ * "cnt" is size of each array and "diffs" is used for scratch space.
+ * The array "old" is updated on each call.
+ * The routine assumes modulo arithmetic. This function is especially
+ * useful on BSD mchines for calculating cpu state percentages.
+ */
+
+long percentages(cnt, out, new, old, diffs)
+
+int cnt;
+int *out;
+register long *new;
+register long *old;
+long *diffs;
+
+{
+ register int i;
+ register long change;
+ register long total_change;
+ register long *dp;
+ long half_total;
+
+ /* initialization */
+ total_change = 0;
+ dp = diffs;
+
+ /* calculate changes for each state and the overall change */
+ for (i = 0; i < cnt; i++)
+ {
+ if ((change = *new - *old) < 0)
+ {
+ /* this only happens when the counter wraps */
+ change = (int)
+ ((unsigned long)*new-(unsigned long)*old);
+ }
+ total_change += (*dp++ = change);
+ *old++ = *new++;
+ }
+
+ /* avoid divide by zero potential */
+ if (total_change == 0)
+ {
+ total_change = 1;
+ }
+
+ /* calculate percentages based on overall change, rounding up */
+ half_total = total_change / 2l;
+
+ /* Do not divide by 0. Causes Floating point exception */
+ if(total_change) {
+ for (i = 0; i < cnt; i++)
+ {
+ *out++ = (int)((*diffs++ * 1000 + half_total) / total_change);
+ }
+ }
+
+ /* return the total in case the caller wants to use it */
+ return(total_change);
+}