minio/pkg/cpu/counter_linux.go at nkv · dominiklessel/minio

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* 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.

package cpu

import (

"syscall"

"time"

"unsafe"

"golang.org/x/sys/unix"

)

func newCounter() (counter, error) {

return counter{}, nil

}

func (c counter) now() time.Time {

var ts syscall.Timespec

// Retrieve Per-process CPU-time clock

syscall.Syscall(syscall.SYS_CLOCK_GETTIME, unix.CLOCK_PROCESS_CPUTIME_ID, uintptr(unsafe.Pointer(&ts)), 0)

sec, nsec := ts.Unix()

return time.Unix(sec, nsec)

}