Fix structure of directories

Signed-off-by: Slávek Banko <[email protected]>

1 files changed, 196 insertions, 0 deletions

diff --git a/src/kcpuproc.cpp b/src/kcpuproc.cpp
new file mode 100644
index 0000000..f7fbe4f
--- /dev/null
+++ b/src/kcpuproc.cpp
@@ -0,0 +1,196 @@
+
+/***************************************************************************
+ *                                                                         *
+ *   KCPULoad is copyright (c) 1999-2000, Markus Gustavsson                *
+ *                         (c) 2002, Ben Burton                            *
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "kcpuproc.h"
+
+#include <cstdlib>
+#include <cstring>
+
+// BSD-specific includes.
+#ifdef Q_OS_BSD4
+#include <sys/dkstat.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <string.h>
+#include <kvm.h>
+#ifdef Q_OS_NETBSD
+#include <sys/sched.h>
+#endif
+#endif
+
+/**
+ * Linux
+ * -----
+ *
+ * System information is read from /proc/stat.
+ *
+ * We assume /proc/stat is in one of the following formats:
+ *
+ *   cpu %d %d %d %d
+ *   ....
+ *
+ *   cpu %d %d %d %d
+ *   cpu0 %d %d %d %d
+ *   ....
+ *
+ *   cpu %d %d %d %d
+ *   cpu0 %d %d %d %d
+ *   cpu1 %d %d %d %d
+ *   ....
+ *
+ * where each set of four numbers is of the form:
+ *
+ *   user_ticks nice_ticks system_ticks idle_ticks
+ *
+ * We also allow sets of seven numbers instead of four (as provided by
+ * the 2.6 kernel); the last three of these numbers are ignored.
+ *
+ * BSD
+ * ---
+ *
+ * Currently only uni-processor mode is supported for BSD.
+ *
+ * BSD code by Andy Fawcett <[email protected]> and
+ * Robbie Ward <[email protected]>, licensed under GPL2.
+ *
+ * Other Operating Systems
+ * -----------------------
+ *
+ * Please, send in a patch!
+ *
+ * The KCPULoad maintainer is currently Ben Burton <[email protected]>, or
+ * you could submit a patch through the KDE bug tracking system
+ * (bugs.kde.org).
+ */
+
+KCPUProc::CPU::Ticks::Ticks() :
+    U(0), S(0), N(0), I(0)
+{ }
+
+KCPUProc::KCPUProc() {
+    smp = false;
+
+    // Look for SMP support and take a current tick reading.
+
+    // ========== BSD-specific (begin) ==========
+#ifdef Q_OS_BSD4
+    readLoad();
+    return;
+#endif
+    // ========== BSD-specific (end) ==========
+
+    // ========== Linux-specific (begin) ==========
+#ifdef Q_OS_LINUX
+    if ((fd = fopen("/proc/stat", "r")) == 0)
+        return;
+
+    if (!all.parse(fd))
+        return;
+    CPU c;
+    while (c.parse(fd))
+        cpu.push_back(c);
+    smp = cpu.size() > 1;
+#endif
+    // ========== Linux-specific (end) ==========
+}
+
+void KCPUProc::readLoad() {
+    // OS-specific local variables.
+
+    // ========== Linux-specific (begin) ==========
+#ifdef Q_OS_LINUX
+    // Prepare to take the readings.
+
+    if ((fd = fopen("/proc/stat", "r")) == 0)
+        return;
+
+    // Take a fresh set of current readings (SMP mode).
+
+    all.parse(fd);
+    for (int i = 0; i < cpu.size(); i++) {
+        if (!cpu[i].parse(fd))
+            break;
+    }
+
+    // Clean up after taking readings.
+
+    fclose(fd);
+#endif
+    // ========== Linux-specific (end) ==========
+
+    // ========== BSD-specific (begin) ==========
+#ifdef Q_OS_BSD4
+    static int name2oid[2] = { 0, 3 };
+    static int oidCpuTime[CTL_MAXNAME + 2];
+    static size_t oidCpuTimeLen = sizeof(oidCpuTime);
+    long cpuTime[CPUSTATES];
+    unsigned int cpuTimeLen = sizeof(cpuTime);
+    static char *name = "kern.cp_time";
+    static int initialized = 0;
+
+    if(smp) {
+        // Take a fresh set of current readings (SMP mode).
+        // TODO: Add SMP support for BSD.
+    } else {
+        // Take a fresh set of current readings (uni-processor mode).
+
+        // The current readings must now become the previous readings.
+        all.p = all.c;
+
+        if (! initialized) {
+            if (sysctl(name2oid, 2, oidCpuTime, &oidCpuTimeLen, name,
+                    strlen(name)) < 0)
+                return;
+
+            oidCpuTimeLen /= sizeof(int);
+            initialized = 1;
+        }
+
+        if (sysctl(oidCpuTime, oidCpuTimeLen, cpuTime, &cpuTimeLen, 0, 0) < 0)
+            return;
+
+        all.c.U = cpuTime[CP_USER];
+        all.c.N = cpuTime[CP_NICE];
+        all.c.S = cpuTime[CP_SYS];
+        all.c.I = cpuTime[CP_IDLE];
+    }
+#endif
+    // ========== BSD-specific (end) ==========
+}
+
+// ========== Linux-specific (begin) ==========
+#ifdef Q_OS_LINUX
+bool KCPUProc::CPU::parse(FILE* fd) {
+    char tagbuffer[32+1];
+    Ticks n;	// new ticks
+    if (fscanf(fd, "%32s%d%d%d%d", tagbuffer, &n.U, &n.N, &n.S, &n.I) != 5) {
+        return false;	// failure
+    }
+
+    if (strncmp(tagbuffer, "cpu", 3) != 0) {
+        return false;	// tag mismatch
+    }
+
+    // shift readings
+    p = c;
+    c = n;
+
+    // ignore the rest of the line
+    int ch;
+    do {
+        ch = getc(fd);
+    } while (ch != '\n' && ch != EOF);
+    return true;
+}
+#endif
+// ========== Linux-specific (end) ==========