remove openbsd amd64 cgo

collector/cpu_openbsd_amd64.go

@@ -0,0 +1,95 @@
+// Copyright 2018 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !nocpu
+
+package collector
+
+import (
+	"strconv"
+	"unsafe"
+
+	"github.com/go-kit/kit/log"
+	"github.com/prometheus/client_golang/prometheus"
+	"golang.org/x/sys/unix"
+)
+
+type clockinfo struct {
+	hz      int32
+	tick    int32
+	tickadj int32
+	stathz  int32
+	profhz  int32
+}
+
+const (
+	CP_USER   = 0
+	CP_NICE   = 1
+	CP_SYS    = 2
+	CP_SPIN   = 3
+	CP_INTR   = 4
+	CP_IDLE   = 5
+	CPUSTATES = 6
+)
+
+type cpuCollector struct {
+	cpu    typedDesc
+	logger log.Logger
+}
+
+func init() {
+	registerCollector("cpu", defaultEnabled, NewCPUCollector)
+}
+
+func NewCPUCollector(logger log.Logger) (Collector, error) {
+	return &cpuCollector{
+		cpu:    typedDesc{nodeCPUSecondsDesc, prometheus.CounterValue},
+		logger: logger,
+	}, nil
+}
+
+func (c *cpuCollector) Update(ch chan<- prometheus.Metric) (err error) {
+	clockb, err := unix.SysctlRaw("kern.clockrate")
+	if err != nil {
+		return err
+	}
+	clock := *(*clockinfo)(unsafe.Pointer(&clockb[0]))
+	hz := float64(clock.stathz)
+
+	ncpus, err := unix.SysctlUint32("hw.ncpu")
+	if err != nil {
+		return err
+	}
+
+	var cpTime [][CPUSTATES]int64
+	for i := 0; i < int(ncpus); i++ {
+		cpb, err := unix.SysctlRaw("kern.cp_time2", i)
+		if err != nil && err != unix.ENODEV {
+			return err
+		}
+		if err != unix.ENODEV {
+			cpTime = append(cpTime, *(*[CPUSTATES]int64)(unsafe.Pointer(&cpb[0])))
+		}
+	}
+
+	for cpu, time := range cpTime {
+		lcpu := strconv.Itoa(cpu)
+		ch <- c.cpu.mustNewConstMetric(float64(time[CP_USER])/hz, lcpu, "user")
+		ch <- c.cpu.mustNewConstMetric(float64(time[CP_NICE])/hz, lcpu, "nice")
+		ch <- c.cpu.mustNewConstMetric(float64(time[CP_SYS])/hz, lcpu, "system")
+		ch <- c.cpu.mustNewConstMetric(float64(time[CP_SPIN])/hz, lcpu, "spin")
+		ch <- c.cpu.mustNewConstMetric(float64(time[CP_INTR])/hz, lcpu, "interrupt")
+		ch <- c.cpu.mustNewConstMetric(float64(time[CP_IDLE])/hz, lcpu, "idle")
+	}
+	return err
+}