mirror of
https://github.com/openziti/ziti.git
synced 2026-10-04 12:31:31 +00:00
Paul Lorenz
60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
/*
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Copyright NetFoundry Inc.
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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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https://www.apache.org/licenses/LICENSE-2.0
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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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package profiler
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import (
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"github.com/michaelquigley/pfxlog"
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"os"
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"os/signal"
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"runtime/pprof"
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"syscall"
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)
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type CPU struct {
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path string
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shutdownC <-chan struct{}
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}
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func NewCPU(path string) (*CPU, error) {
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return NewCPUWithShutdown(path, nil)
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}
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func NewCPUWithShutdown(path string, shutdownC <-chan struct{}) (*CPU, error) {
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f, err := os.Create(path)
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if err != nil {
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return nil, err
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}
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if err := pprof.StartCPUProfile(f); err != nil {
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return nil, err
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}
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pfxlog.Logger().Infof("cpu profiling to [%s]", path)
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return &CPU{path: path, shutdownC: shutdownC}, nil
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}
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func (cpu *CPU) Run() {
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signalChan := make(chan os.Signal, 1)
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signal.Notify(signalChan, syscall.SIGUSR2)
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select {
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case <-signalChan:
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case <-cpu.shutdownC:
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}
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pprof.StopCPUProfile()
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pfxlog.Logger().Info("stopped profiling cpu")
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}
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