Xinqi Bao's Git

updated ram_total and ram_free (obsd)
[slstatus.git] / components / cpu.c
index c8299f9..02e7671 100644 (file)
@@ -19,9 +19,8 @@
        const char *
        cpu_perc(void)
        {
-               int perc;
-               static long double a[7];
                static int valid;
+               static long double a[7];
                long double b[7];
 
                memcpy(b, a, sizeof(b));
                        return NULL;
                }
 
-               perc = 100 * ((b[0] + b[1] + b[2] + b[5] + b[6]) -
-                             (a[0] + a[1] + a[2] + a[5] + a[6])) /
-                            ((b[0] + b[1] + b[2] + b[3] + b[4] + b[5] + b[6]) -
-                             (a[0] + a[1] + a[2] + a[3] + a[4] + a[5] + a[6]));
-
-               return bprintf("%d", perc);
+               return bprintf("%d", (int)(100 *
+                              ((b[0] + b[1] + b[2] + b[5] + b[6]) -
+                               (a[0] + a[1] + a[2] + a[5] + a[6])) /
+                              ((b[0] + b[1] + b[2] + b[3] + b[4] + b[5] + b[6]) -
+                               (a[0] + a[1] + a[2] + a[3] + a[4] + a[5] + a[6]))));
        }
 #elif defined(__OpenBSD__)
        #include <sys/param.h>
@@ -58,9 +56,8 @@
 
                size = sizeof(freq);
 
-               if (sysctl(mib, 2, &freq, &size, NULL, 0) == -1) {
-                       fprintf(stderr, "sysctl 'HW_CPUSPEED': %s\n",
-                               strerror(errno));
+               if (sysctl(mib, 2, &freq, &size, NULL, 0) < 0) {
+                       fprintf(stderr, "sysctl 'HW_CPUSPEED': %s\n", strerror(errno));
                        return NULL;
                }
 
@@ -70,7 +67,7 @@
        const char *
        cpu_perc(void)
        {
-               int mib[2], perc;
+               int mib[2];
                static int valid;
                static long int a[CPUSTATES];
                long int b[CPUSTATES];
@@ -82,7 +79,7 @@
                size = sizeof(a);
 
                memcpy(b, a, sizeof(b));
-               if (sysctl(mib, 2, &a, &size, NULL, 0) == -1) {
+               if (sysctl(mib, 2, &a, &size, NULL, 0) < 0) {
                        fprintf(stderr, "sysctl 'KERN_CPTIME': %s\n", strerror(errno));
                        return NULL;
                }
                        return NULL;
                }
 
-               perc = 100 *
-                     ((a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR]) -
-                      (b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR])) /
-                     ((a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR] + a[CP_IDLE]) -
-                      (b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR] + b[CP_IDLE]));
-
-               return bprintf("%d", perc);
+               return bprintf("%d", 100 *
+                              ((a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR]) -
+                               (b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR])) /
+                              ((a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR] +
+                                a[CP_IDLE]) -
+                               (b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR] +
+                                b[CP_IDLE])));
        }
 #endif