func withTestTerminal(name string, t testing.TB, fn func(*FakeTerminal)) {
os.Setenv("TERM", "dumb")
listener, err := net.Listen("tcp", "localhost:0")
if err != nil {
t.Fatalf("couldn't start listener: %s\n", err)
}
defer listener.Close()
server := rpccommon.NewServer(&service.Config{
Listener: listener,
ProcessArgs: []string{test.BuildFixture(name).Path},
}, false)
if err := server.Run(); err != nil {
t.Fatal(err)
}
client := rpc2.NewClient(listener.Addr().String())
defer func() {
client.Detach(true)
}()
ft := &FakeTerminal{
t: t,
Term: New(client, nil),
}
fn(ft)
}
func Test1Restart_attachPid(t *testing.T) {
// Assert it does not work and returns error.
// We cannot restart a process we did not spawn.
server := rpccommon.NewServer(&service.Config{
Listener: nil,
AttachPid: 999,
}, false)
if err := server.Restart(); err == nil {
t.Fatal("expected error on restart after attaching to pid but got none")
}
}
func Test1RunWithInvalidPath(t *testing.T) {
listener, err := net.Listen("tcp", "localhost:0")
if err != nil {
t.Fatalf("couldn't start listener: %s\n", err)
}
defer listener.Close()
server := rpccommon.NewServer(&service.Config{
Listener: listener,
ProcessArgs: []string{"invalid_path"},
}, false)
if err := server.Run(); err == nil {
t.Fatal("Expected Run to return error for invalid program path")
}
}
func withTestClient1(name string, t *testing.T, fn func(c *rpc1.RPCClient)) {
listener, err := net.Listen("tcp", "localhost:0")
if err != nil {
t.Fatalf("couldn't start listener: %s\n", err)
}
defer listener.Close()
server := rpccommon.NewServer(&service.Config{
Listener: listener,
ProcessArgs: []string{protest.BuildFixture(name).Path},
}, false)
if err := server.Run(); err != nil {
t.Fatal(err)
}
client := rpc1.NewClient(listener.Addr().String())
defer func() {
client.Detach(true)
}()
fn(client)
}
func execute(attachPid int, processArgs []string, conf *config.Config, kind executeKind) int {
// Make a TCP listener
listener, err := net.Listen("tcp", Addr)
if err != nil {
fmt.Printf("couldn't start listener: %s\n", err)
return 1
}
defer listener.Close()
if Headless && (InitFile != "") {
fmt.Fprintf(os.Stderr, "Warning: init file ignored\n")
}
var server interface {
Run() error
Stop(bool) error
}
// Create and start a debugger server
switch APIVersion {
case 1, 2:
server = rpccommon.NewServer(&service.Config{
Listener: listener,
ProcessArgs: processArgs,
AttachPid: attachPid,
AcceptMulti: AcceptMulti,
APIVersion: APIVersion,
}, Log)
default:
fmt.Println("Unknown API version %d", APIVersion)
return 1
}
if err := server.Run(); err != nil {
if err == api.NotExecutableErr {
switch kind {
case executingGeneratedFile:
fmt.Fprintln(os.Stderr, "Can not debug non-main package")
return 1
case executingExistingFile:
fmt.Fprintf(os.Stderr, "%s is not executable\n", processArgs[0])
return 1
default:
// fallthrough
}
}
fmt.Fprintln(os.Stderr, err)
return 1
}
var status int
if Headless {
// Print listener address
fmt.Printf("API server listening at: %s\n", listener.Addr())
ch := make(chan os.Signal)
signal.Notify(ch, syscall.SIGINT)
<-ch
err = server.Stop(true)
} else {
// Create and start a terminal
var client service.Client
client = rpc2.NewClient(listener.Addr().String())
term := terminal.New(client, conf)
term.InitFile = InitFile
status, err = term.Run()
}
if err != nil {
fmt.Println(err)
}
return status
}
func traceCmd(cmd *cobra.Command, args []string) {
status := func() int {
var regexp string
var processArgs []string
dlvArgs, targetArgs := splitArgs(cmd, args)
if traceAttachPid == 0 {
var pkg string
switch len(dlvArgs) {
case 1:
regexp = args[0]
case 2:
pkg = args[0]
regexp = args[1]
}
if err := gobuild(debugname, pkg); err != nil {
return 1
}
defer os.Remove("./" + debugname)
processArgs = append([]string{"./" + debugname}, targetArgs...)
}
// Make a TCP listener
listener, err := net.Listen("tcp", Addr)
if err != nil {
fmt.Printf("couldn't start listener: %s\n", err)
return 1
}
defer listener.Close()
// Create and start a debug server
server := rpccommon.NewServer(&service.Config{
Listener: listener,
ProcessArgs: processArgs,
AttachPid: traceAttachPid,
APIVersion: 2,
}, Log)
if err := server.Run(); err != nil {
fmt.Fprintln(os.Stderr, err)
return 1
}
client := rpc2.NewClient(listener.Addr().String())
funcs, err := client.ListFunctions(regexp)
if err != nil {
fmt.Fprintln(os.Stderr, err)
return 1
}
for i := range funcs {
_, err = client.CreateBreakpoint(&api.Breakpoint{FunctionName: funcs[i], Tracepoint: true, Line: -1, Stacktrace: traceStackDepth, LoadArgs: &terminal.ShortLoadConfig})
if err != nil {
fmt.Fprintln(os.Stderr, err)
return 1
}
}
cmds := terminal.DebugCommands(client)
t := terminal.New(client, nil)
defer t.Close()
err = cmds.Call("continue", "", t)
if err != nil {
fmt.Fprintln(os.Stderr, err)
return 1
}
return 0
}()
os.Exit(status)
}