llvm-project/lldb/source/Commands/CommandObjectQuit.cpp
Jonas Devlieghere 8b3af63b89 [NFC] Remove ASCII lines from comments
A lot of comments in LLDB are surrounded by an ASCII line to delimit the
begging and end of the comment.

Its use is not really consistent across the code base, sometimes the
lines are longer, sometimes they are shorter and sometimes they are
omitted. Furthermore, it looks kind of weird with the 80 column limit,
where the comment actually extends past the line, but not by much.
Furthermore, when /// is used for Doxygen comments, it looks
particularly odd. And when // is used, it incorrectly gives the
impression that it's actually a Doxygen comment.

I assume these lines were added to improve distinguishing between
comments and code. However, given that todays editors and IDEs do a
great job at highlighting comments, I think it's worth to drop this for
the sake of consistency. The alternative is fixing all the
inconsistencies, which would create a lot more churn.

Differential revision: https://reviews.llvm.org/D60508

llvm-svn: 358135
2019-04-10 20:48:55 +00:00

108 lines
3.8 KiB
C++

//===-- CommandObjectQuit.cpp -----------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "CommandObjectQuit.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Target/Process.h"
#include "lldb/Utility/StreamString.h"
using namespace lldb;
using namespace lldb_private;
// CommandObjectQuit
CommandObjectQuit::CommandObjectQuit(CommandInterpreter &interpreter)
: CommandObjectParsed(interpreter, "quit", "Quit the LLDB debugger.",
"quit [exit-code]") {}
CommandObjectQuit::~CommandObjectQuit() {}
// returns true if there is at least one alive process is_a_detach will be true
// if all alive processes will be detached when you quit and false if at least
// one process will be killed instead
bool CommandObjectQuit::ShouldAskForConfirmation(bool &is_a_detach) {
if (!m_interpreter.GetPromptOnQuit())
return false;
bool should_prompt = false;
is_a_detach = true;
for (uint32_t debugger_idx = 0; debugger_idx < Debugger::GetNumDebuggers();
debugger_idx++) {
DebuggerSP debugger_sp(Debugger::GetDebuggerAtIndex(debugger_idx));
if (!debugger_sp)
continue;
const TargetList &target_list(debugger_sp->GetTargetList());
for (uint32_t target_idx = 0;
target_idx < static_cast<uint32_t>(target_list.GetNumTargets());
target_idx++) {
TargetSP target_sp(target_list.GetTargetAtIndex(target_idx));
if (!target_sp)
continue;
ProcessSP process_sp(target_sp->GetProcessSP());
if (process_sp && process_sp->IsValid() && process_sp->IsAlive() &&
process_sp->WarnBeforeDetach()) {
should_prompt = true;
if (!process_sp->GetShouldDetach()) {
// if we need to kill at least one process, just say so and return
is_a_detach = false;
return should_prompt;
}
}
}
}
return should_prompt;
}
bool CommandObjectQuit::DoExecute(Args &command, CommandReturnObject &result) {
bool is_a_detach = true;
if (ShouldAskForConfirmation(is_a_detach)) {
StreamString message;
message.Printf("Quitting LLDB will %s one or more processes. Do you really "
"want to proceed",
(is_a_detach ? "detach from" : "kill"));
if (!m_interpreter.Confirm(message.GetString(), true)) {
result.SetStatus(eReturnStatusFailed);
return false;
}
}
if (command.GetArgumentCount() > 1) {
result.AppendError("Too many arguments for 'quit'. Only an optional exit "
"code is allowed");
result.SetStatus(eReturnStatusFailed);
return false;
}
// We parse the exit code argument if there is one.
if (command.GetArgumentCount() == 1) {
llvm::StringRef arg = command.GetArgumentAtIndex(0);
int exit_code;
if (arg.getAsInteger(/*autodetect radix*/ 0, exit_code)) {
lldb_private::StreamString s;
std::string arg_str = arg.str();
s.Printf("Couldn't parse '%s' as integer for exit code.", arg_str.data());
result.AppendError(s.GetString());
result.SetStatus(eReturnStatusFailed);
return false;
}
if (!m_interpreter.SetQuitExitCode(exit_code)) {
result.AppendError("The current driver doesn't allow custom exit codes"
" for the quit command.");
result.SetStatus(eReturnStatusFailed);
return false;
}
}
const uint32_t event_type =
CommandInterpreter::eBroadcastBitQuitCommandReceived;
m_interpreter.BroadcastEvent(event_type);
result.SetStatus(eReturnStatusQuit);
return true;
}