AIX: Detect offline cpus

Signed-off-by: Florian Forster <octo@leeloo.lan.home.verplant.org>

diff --git a/src/cpu.c b/src/cpu.c
index cfdea58..7a6bba3 100644 (file)
--- a/src/cpu.c
+++ b/src/cpu.c
@@ -143,6 +143,8 @@ static int maxcpu;
 static perfstat_cpu_t *perfcpu;
 static int numcpu;
 static int pnumcpu;
+static u_longlong_t *cpu_total;
+static u_longlong_t *pcpu_total;
 #endif /* HAVE_PERFSTAT */
 
 static int init (void)
@@ -562,6 +564,7 @@ static int cpu_read (void)
 #elif defined(HAVE_PERFSTAT)
        perfstat_id_t id;
        perfstat_cpu_t *pcpu;
+       u_longlong_t *cpu_swap;
        int i, cpus;
 
        numcpu =  perfstat_cpu(NULL, NULL, sizeof(perfstat_cpu_t), 0);
@@ -578,6 +581,14 @@ static int cpu_read (void)
                if (perfcpu != NULL) 
                        free(perfcpu);
                perfcpu = malloc(numcpu * sizeof(perfstat_cpu_t));
+
+               if (cpu_total != NULL)
+                       free(cpu_total);
+               cpu_total = (u_longlong_t *)calloc(numcpu, sizeof(u_longlong_t));
+
+               if (pcpu_total != NULL)
+                       free(pcpu_total);
+               pcpu_total = (u_longlong_t *)calloc(numcpu, sizeof(u_longlong_t));
        }
        pnumcpu = numcpu;
 
@@ -592,11 +603,19 @@ static int cpu_read (void)
 
        for (i = 0, pcpu = perfcpu; i < cpus; i++, pcpu++)
        {
+               cpu_total[i] = pcpu->idle + pcpu->sys + pcpu->user + pcpu->wait;
+               if (cpu_total[i] == pcpu_total[i])
+                       continue;
+
                submit (i, "idle",   (counter_t) pcpu->idle);
                submit (i, "system", (counter_t) pcpu->sys);
                submit (i, "user",   (counter_t) pcpu->user);
                submit (i, "wait",   (counter_t) pcpu->wait);
        }
+
+       cpu_swap = pcpu_total;
+       pcpu_total = cpu_total;
+       cpu_total = cpu_swap;
 #endif /* HAVE_PERFSTAT */
 
        return (0);