Split out os dependent library

git-svn-id: http://opensvn.csie.org/pttbbs/trunk/pttbbs@4378 63ad8ddf-47c3-0310-b6dd-a9e9d9715204

1 files changed, 50 insertions, 0 deletions

diff --git a/common/osdep/cpuload.c b/common/osdep/cpuload.c
new file mode 100644
index 00000000..be71fa72
--- /dev/null
+++ b/common/osdep/cpuload.c
@@ -0,0 +1,50 @@
+/* $Id$ */
+#include <stdio.h>
+#include <string.h>
+#include "osdep.h"
+
+#if defined( __FreeBSD__) || defined(_BSD_SOURCE)
+#include <stdlib.h>
+int
+cpuload(char *str)
+{
+    double          l[3] = {-1, -1, -1};
+    if (getloadavg(l, 3) != 3)
+	l[0] = -1;
+
+    if (str) {
+	if (l[0] != -1)
+	    sprintf(str, " %.2f %.2f %.2f", l[0], l[1], l[2]);
+	else
+	    strcpy(str, " (unknown) ");
+    }
+    return (int)l[0];
+}
+#elif defined(__linux__)
+int
+cpuload(char *str)
+{
+    double          l[3] = {-1, -1, -1};
+    FILE           *fp;
+
+    if ((fp = fopen("/proc/loadavg", "r"))) {
+	if (fscanf(fp, "%lf %lf %lf", &l[0], &l[1], &l[2]) != 3)
+	    l[0] = -1;
+	fclose(fp);
+    }
+    if (str) {
+	if (l[0] != -1)
+	    sprintf(str, " %.2f %.2f %.2f", l[0], l[1], l[2]);
+	else
+	    strcpy(str, " (unknown) ");
+    }
+    return (int)l[0];
+}
+#else
+int
+cpuload(char *str)
+{
+    strcpy(str, " (unknown) ");
+    return -1;
+}
+#endif