mirror of
https://github.com/letic/terraform-provider-google.git
synced 2024-09-06 17:16:44 +00:00
961c878e0d
Switch to using Go modules. This migrates our vendor.json to use Go 1.11's modules system, and replaces the vendor folder with the output of go mod vendor. The vendored code should remain basically the same; I believe some tree shaking of packages and support scripts/licenses/READMEs/etc. happened. This also fixes Travis and our Makefile to no longer use govendor.
115 lines
3.2 KiB
Go
115 lines
3.2 KiB
Go
// +build !appengine
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/*
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*
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* Copyright 2018 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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// Package syscall provides functionalities that grpc uses to get low-level operating system
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// stats/info.
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package syscall
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import (
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"fmt"
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"net"
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"syscall"
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"time"
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"golang.org/x/sys/unix"
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"google.golang.org/grpc/grpclog"
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)
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// GetCPUTime returns the how much CPU time has passed since the start of this process.
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func GetCPUTime() int64 {
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var ts unix.Timespec
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if err := unix.ClockGettime(unix.CLOCK_PROCESS_CPUTIME_ID, &ts); err != nil {
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grpclog.Fatal(err)
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}
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return ts.Nano()
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}
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// Rusage is an alias for syscall.Rusage under linux non-appengine environment.
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type Rusage syscall.Rusage
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// GetRusage returns the resource usage of current process.
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func GetRusage() (rusage *Rusage) {
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rusage = new(Rusage)
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syscall.Getrusage(syscall.RUSAGE_SELF, (*syscall.Rusage)(rusage))
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return
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}
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// CPUTimeDiff returns the differences of user CPU time and system CPU time used
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// between two Rusage structs.
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func CPUTimeDiff(first *Rusage, latest *Rusage) (float64, float64) {
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f := (*syscall.Rusage)(first)
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l := (*syscall.Rusage)(latest)
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var (
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utimeDiffs = l.Utime.Sec - f.Utime.Sec
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utimeDiffus = l.Utime.Usec - f.Utime.Usec
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stimeDiffs = l.Stime.Sec - f.Stime.Sec
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stimeDiffus = l.Stime.Usec - f.Stime.Usec
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)
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uTimeElapsed := float64(utimeDiffs) + float64(utimeDiffus)*1.0e-6
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sTimeElapsed := float64(stimeDiffs) + float64(stimeDiffus)*1.0e-6
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return uTimeElapsed, sTimeElapsed
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}
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// SetTCPUserTimeout sets the TCP user timeout on a connection's socket
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func SetTCPUserTimeout(conn net.Conn, timeout time.Duration) error {
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tcpconn, ok := conn.(*net.TCPConn)
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if !ok {
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// not a TCP connection. exit early
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return nil
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}
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rawConn, err := tcpconn.SyscallConn()
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if err != nil {
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return fmt.Errorf("error getting raw connection: %v", err)
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}
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err = rawConn.Control(func(fd uintptr) {
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err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, unix.TCP_USER_TIMEOUT, int(timeout/time.Millisecond))
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})
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if err != nil {
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return fmt.Errorf("error setting option on socket: %v", err)
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}
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return nil
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}
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// GetTCPUserTimeout gets the TCP user timeout on a connection's socket
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func GetTCPUserTimeout(conn net.Conn) (opt int, err error) {
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tcpconn, ok := conn.(*net.TCPConn)
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if !ok {
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err = fmt.Errorf("conn is not *net.TCPConn. got %T", conn)
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return
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}
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rawConn, err := tcpconn.SyscallConn()
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if err != nil {
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err = fmt.Errorf("error getting raw connection: %v", err)
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return
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}
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err = rawConn.Control(func(fd uintptr) {
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opt, err = syscall.GetsockoptInt(int(fd), syscall.IPPROTO_TCP, unix.TCP_USER_TIMEOUT)
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})
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if err != nil {
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err = fmt.Errorf("error getting option on socket: %v", err)
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return
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}
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return
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}
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