1 //===-- CommandObjectQuit.cpp ---------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "CommandObjectQuit.h"
10
11 #include "lldb/Interpreter/CommandInterpreter.h"
12 #include "lldb/Interpreter/CommandReturnObject.h"
13 #include "lldb/Target/Process.h"
14 #include "lldb/Utility/StreamString.h"
15
16 using namespace lldb;
17 using namespace lldb_private;
18
19 // CommandObjectQuit
20
CommandObjectQuit(CommandInterpreter & interpreter)21 CommandObjectQuit::CommandObjectQuit(CommandInterpreter &interpreter)
22 : CommandObjectParsed(interpreter, "quit", "Quit the LLDB debugger.",
23 "quit [exit-code]") {}
24
25 CommandObjectQuit::~CommandObjectQuit() = default;
26
27 // returns true if there is at least one alive process is_a_detach will be true
28 // if all alive processes will be detached when you quit and false if at least
29 // one process will be killed instead
ShouldAskForConfirmation(bool & is_a_detach)30 bool CommandObjectQuit::ShouldAskForConfirmation(bool &is_a_detach) {
31 if (!m_interpreter.GetPromptOnQuit())
32 return false;
33 bool should_prompt = false;
34 is_a_detach = true;
35 for (uint32_t debugger_idx = 0; debugger_idx < Debugger::GetNumDebuggers();
36 debugger_idx++) {
37 DebuggerSP debugger_sp(Debugger::GetDebuggerAtIndex(debugger_idx));
38 if (!debugger_sp)
39 continue;
40 const TargetList &target_list(debugger_sp->GetTargetList());
41 for (uint32_t target_idx = 0;
42 target_idx < static_cast<uint32_t>(target_list.GetNumTargets());
43 target_idx++) {
44 TargetSP target_sp(target_list.GetTargetAtIndex(target_idx));
45 if (!target_sp)
46 continue;
47 ProcessSP process_sp(target_sp->GetProcessSP());
48 if (process_sp && process_sp->IsValid() && process_sp->IsAlive() &&
49 process_sp->WarnBeforeDetach()) {
50 should_prompt = true;
51 if (!process_sp->GetShouldDetach()) {
52 // if we need to kill at least one process, just say so and return
53 is_a_detach = false;
54 return should_prompt;
55 }
56 }
57 }
58 }
59 return should_prompt;
60 }
61
DoExecute(Args & command,CommandReturnObject & result)62 bool CommandObjectQuit::DoExecute(Args &command, CommandReturnObject &result) {
63 bool is_a_detach = true;
64 if (ShouldAskForConfirmation(is_a_detach)) {
65 StreamString message;
66 message.Printf("Quitting LLDB will %s one or more processes. Do you really "
67 "want to proceed",
68 (is_a_detach ? "detach from" : "kill"));
69 if (!m_interpreter.Confirm(message.GetString(), true)) {
70 result.SetStatus(eReturnStatusFailed);
71 return false;
72 }
73 }
74
75 if (command.GetArgumentCount() > 1) {
76 result.AppendError("Too many arguments for 'quit'. Only an optional exit "
77 "code is allowed");
78 return false;
79 }
80
81 // We parse the exit code argument if there is one.
82 if (command.GetArgumentCount() == 1) {
83 llvm::StringRef arg = command.GetArgumentAtIndex(0);
84 int exit_code;
85 if (arg.getAsInteger(/*autodetect radix*/ 0, exit_code)) {
86 lldb_private::StreamString s;
87 std::string arg_str = arg.str();
88 s.Printf("Couldn't parse '%s' as integer for exit code.", arg_str.data());
89 result.AppendError(s.GetString());
90 return false;
91 }
92 if (!m_interpreter.SetQuitExitCode(exit_code)) {
93 result.AppendError("The current driver doesn't allow custom exit codes"
94 " for the quit command.");
95 return false;
96 }
97 }
98
99 const uint32_t event_type =
100 CommandInterpreter::eBroadcastBitQuitCommandReceived;
101 m_interpreter.BroadcastEvent(event_type);
102 result.SetStatus(eReturnStatusQuit);
103
104 return true;
105 }
106