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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package private
import (
"bytes"
"fmt"
"io"
"net/http"
"runtime"
"time"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/private"
process_module "code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/services/context"
)
// Processes prints out the processes
func Processes(ctx *context.PrivateContext) {
pid := ctx.FormString("cancel-pid")
if pid != "" {
process_module.GetManager().Cancel(process_module.IDType(pid))
runtime.Gosched()
time.Sleep(100 * time.Millisecond)
}
flat := ctx.FormBool("flat")
noSystem := ctx.FormBool("no-system")
stacktraces := ctx.FormBool("stacktraces")
json := ctx.FormBool("json")
var processes []*process_module.Process
goroutineCount := int64(0)
var processCount int
var err error
if stacktraces {
processes, processCount, goroutineCount, err = process_module.GetManager().ProcessStacktraces(flat, noSystem)
if err != nil {
log.Error("Unable to get stacktrace: %v", err)
ctx.JSON(http.StatusInternalServerError, private.Response{
Err: fmt.Sprintf("Failed to get stacktraces: %v", err),
})
return
}
} else {
processes, processCount = process_module.GetManager().Processes(flat, noSystem)
}
if json {
ctx.JSON(http.StatusOK, map[string]any{
"TotalNumberOfGoroutines": goroutineCount,
"TotalNumberOfProcesses": processCount,
"Processes": processes,
})
return
}
ctx.Resp.Header().Set("Content-Type", "text/plain;charset=utf-8")
ctx.Resp.WriteHeader(http.StatusOK)
if err := writeProcesses(ctx.Resp, processes, processCount, goroutineCount, "", flat); err != nil {
log.Error("Unable to write out process stacktrace: %v", err)
if !ctx.Written() {
ctx.JSON(http.StatusInternalServerError, private.Response{
Err: fmt.Sprintf("Failed to get stacktraces: %v", err),
})
}
return
}
}
func writeProcesses(out io.Writer, processes []*process_module.Process, processCount int, goroutineCount int64, indent string, flat bool) error {
if goroutineCount > 0 {
if _, err := fmt.Fprintf(out, "%sTotal Number of Goroutines: %d\n", indent, goroutineCount); err != nil {
return err
}
}
if _, err := fmt.Fprintf(out, "%sTotal Number of Processes: %d\n", indent, processCount); err != nil {
return err
}
if len(processes) > 0 {
if err := writeProcess(out, processes[0], " ", flat); err != nil {
return err
}
}
if len(processes) > 1 {
for _, process := range processes[1:] {
if _, err := fmt.Fprintf(out, "%s | \n", indent); err != nil {
return err
}
if err := writeProcess(out, process, " ", flat); err != nil {
return err
}
}
}
return nil
}
func writeProcess(out io.Writer, process *process_module.Process, indent string, flat bool) error {
sb := &bytes.Buffer{}
if flat {
if process.ParentPID != "" {
_, _ = fmt.Fprintf(sb, "%s+ PID: %s\t\tType: %s\n", indent, process.PID, process.Type)
} else {
_, _ = fmt.Fprintf(sb, "%s+ PID: %s:%s\tType: %s\n", indent, process.ParentPID, process.PID, process.Type)
}
} else {
_, _ = fmt.Fprintf(sb, "%s+ PID: %s\tType: %s\n", indent, process.PID, process.Type)
}
indent += "| "
_, _ = fmt.Fprintf(sb, "%sDescription: %s\n", indent, process.Description)
_, _ = fmt.Fprintf(sb, "%sStart: %s\n", indent, process.Start)
if len(process.Stacks) > 0 {
_, _ = fmt.Fprintf(sb, "%sGoroutines:\n", indent)
for _, stack := range process.Stacks {
indent := indent + " "
_, _ = fmt.Fprintf(sb, "%s+ Description: %s", indent, stack.Description)
if stack.Count > 1 {
_, _ = fmt.Fprintf(sb, "* %d", stack.Count)
}
_, _ = fmt.Fprintf(sb, "\n")
indent += "| "
if len(stack.Labels) > 0 {
_, _ = fmt.Fprintf(sb, "%sLabels: %q:%q", indent, stack.Labels[0].Name, stack.Labels[0].Value)
if len(stack.Labels) > 1 {
for _, label := range stack.Labels[1:] {
_, _ = fmt.Fprintf(sb, ", %q:%q", label.Name, label.Value)
}
}
_, _ = fmt.Fprintf(sb, "\n")
}
_, _ = fmt.Fprintf(sb, "%sStack:\n", indent)
indent += " "
for _, entry := range stack.Entry {
_, _ = fmt.Fprintf(sb, "%s+ %s\n", indent, entry.Function)
_, _ = fmt.Fprintf(sb, "%s| %s:%d\n", indent, entry.File, entry.Line)
}
}
}
if _, err := out.Write(sb.Bytes()); err != nil {
return err
}
sb.Reset()
if len(process.Children) > 0 {
if _, err := fmt.Fprintf(out, "%sChildren:\n", indent); err != nil {
return err
}
for _, child := range process.Children {
if err := writeProcess(out, child, indent+" ", flat); err != nil {
return err
}
}
}
return nil
}
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