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profile.go
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profile.go
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/*
* Copyright (c) 2017, MegaEase
* All rights reserved.
*
* 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:https://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 command
import (
"errors"
"net/http"
"github.com/spf13/cobra"
)
// ProfileCmd defines member command.
func ProfileCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "profile",
Short: "Start and stop CPU and memory profilers",
}
cmd.AddCommand(infoProfileCmd())
cmd.AddCommand(startProfilingCmd())
cmd.AddCommand(stopProfilingCmd())
return cmd
}
func infoProfileCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "info",
Short: "Show memory and CPU profile file paths",
Run: func(cmd *cobra.Command, args []string) {
handleRequest(http.MethodGet, makeURL(profileURL), nil, cmd)
},
}
return cmd
}
func startProfilingCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "start",
Short: "Prepare measuring CPU or memory",
}
cmd.AddCommand(startCPUCmd())
cmd.AddCommand(startMemoryCmd())
return cmd
}
func startCPUCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "cpu",
Short: "Prepare measuring CPU",
Example: "egctl profile start cpu <path/to/cpu-prof-file>",
Args: func(cmd *cobra.Command, args []string) error {
if len(args) != 1 {
return errors.New("requires one file path")
}
return nil
},
Run: func(cmd *cobra.Command, args []string) {
body := []byte("path: " + args[0])
handleRequest(http.MethodPost, makeURL(profileStartURL, "cpu"), body, cmd)
},
}
return cmd
}
func startMemoryCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "memory",
Short: "Prepare measuring memory",
Example: "egctl profile start memory <path/to/memory-prof-file>",
Args: func(cmd *cobra.Command, args []string) error {
if len(args) != 1 {
return errors.New("requires one file path")
}
return nil
},
Run: func(cmd *cobra.Command, args []string) {
body := []byte("path: " + args[0])
handleRequest(http.MethodPost, makeURL(profileStartURL, "memory"), body, cmd)
},
}
return cmd
}
func stopProfilingCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "stop",
Short: "Stop profiling.",
Example: "egctl profile stop",
Run: func(cmd *cobra.Command, args []string) {
handleRequest(http.MethodPost, makeURL(profileStopURL), nil, cmd)
},
}
return cmd
}