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This should fix it.

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This commit is contained in:
Kai Storbeck 2016-04-19 21:59:53 +02:00 committed by Kai Storbeck
parent d98335cbf0
commit aac89c524e
1 changed files with 7 additions and 2 deletions
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9
collector/cpu_freebsd.go
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@ -103,6 +103,8 @@ void freeCPUTimes(double *cpu_times) {
*/
import "C"
const MAXCPUTIMESLEN = C.MAXCPU * C.CPUSTATES;
type statCollector struct {
cpu *prometheus.CounterVec
}
@ -149,10 +151,13 @@ func (c *statCollector) Update(ch chan<- prometheus.Metric) (err error) {
if C.getCPUTimes(&ncpu, &cpuTimesC, &cpuTimesLength) == -1 {
return errors.New("could not retrieve CPU times")
}
defer C.freeCPUTimes(cpuTimesC)
defer C.free(unsafe.Pointer(cpuTimesC))
if cpuTimesLength > MAXCPUTIMESLEN {
return errors.New("more CPU's than MAXCPU?")
}
// Convert C.double array to Go array (https://github.com/golang/go/wiki/cgo#turning-c-arrays-into-go-slices).
cpuTimes := (*[1 << 30]C.double)(unsafe.Pointer(cpuTimesC))[:cpuTimesLength:cpuTimesLength]
cpuTimes := (*[maxCpuTimes]C.double)(unsafe.Pointer(cpuTimesC))[:cpuTimesLength:cpuTimesLength]
for cpu := 0; cpu < int(ncpu); cpu++ {
base_idx := C.CPUSTATES * cpu