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github.com
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golang.org
google.golang.org
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channelz
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envconfig
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grpcutil
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pretty
resolver
serviceconfig
stats
status
syscall
syscall_linux.go
syscall_nonlinux.go
transport
experimental.go
internal.go
tcp_keepalive_others.go
tcp_keepalive_unix.go
tcp_keepalive_windows.go
keepalive
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AUTHORS
CODE-OF-CONDUCT.md
CONTRIBUTING.md
GOVERNANCE.md
LICENSE
MAINTAINERS.md
Makefile
NOTICE.txt
README.md
SECURITY.md
backoff.go
balancer_wrapper.go
call.go
clientconn.go
codec.go
dialoptions.go
doc.go
interceptor.go
picker_wrapper.go
preloader.go
resolver_wrapper.go
rpc_util.go
server.go
service_config.go
stream.go
stream_interfaces.go
trace.go
trace_notrace.go
trace_withtrace.go
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go.mod
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renovate.json
78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
//go:build !linux
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// +build !linux
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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
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// operating system stats/info.
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package syscall
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import (
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"net"
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"sync"
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"time"
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"google.golang.org/grpc/grpclog"
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)
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var once sync.Once
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var logger = grpclog.Component("core")
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func log() {
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once.Do(func() {
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logger.Info("CPU time info is unavailable on non-linux environments.")
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})
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}
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// GetCPUTime returns the how much CPU time has passed since the start of this
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// process. It always returns 0 under non-linux environments.
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func GetCPUTime() int64 {
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log()
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return 0
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}
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// Rusage is an empty struct under non-linux environments.
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type Rusage struct{}
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// GetRusage is a no-op function under non-linux environments.
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func GetRusage() *Rusage {
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log()
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return nil
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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. It a no-op function for non-linux environments.
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func CPUTimeDiff(*Rusage, *Rusage) (float64, float64) {
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log()
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return 0, 0
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}
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// SetTCPUserTimeout is a no-op function under non-linux environments.
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func SetTCPUserTimeout(net.Conn, time.Duration) error {
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log()
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return nil
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}
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// GetTCPUserTimeout is a no-op function under non-linux environments.
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// A negative return value indicates the operation is not supported
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func GetTCPUserTimeout(net.Conn) (int, error) {
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log()
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return -1, nil
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}
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