llvm-project/lldb/source/Target/ThreadPlanCallOnFunctionExit.cpp
Adrian Prantl 05097246f3 Reflow paragraphs in comments.
This is intended as a clean up after the big clang-format commit
(r280751), which unfortunately resulted in many of the comment
paragraphs in LLDB being very hard to read.

FYI, the script I used was:

import textwrap
import commands
import os
import sys
import re
tmp = "%s.tmp"%sys.argv[1]
out = open(tmp, "w+")
with open(sys.argv[1], "r") as f:
  header = ""
  text = ""
  comment = re.compile(r'^( *//) ([^ ].*)$')
  special = re.compile(r'^((([A-Z]+[: ])|([0-9]+ )).*)|(.*;)$')
  for line in f:
      match = comment.match(line)
      if match and not special.match(match.group(2)):
          # skip intentionally short comments.
          if not text and len(match.group(2)) < 40:
              out.write(line)
              continue

          if text:
              text += " " + match.group(2)
          else:
              header = match.group(1)
              text = match.group(2)

          continue

      if text:
          filled = textwrap.wrap(text, width=(78-len(header)),
                                 break_long_words=False)
          for l in filled:
              out.write(header+" "+l+'\n')
              text = ""

      out.write(line)

os.rename(tmp, sys.argv[1])

Differential Revision: https://reviews.llvm.org/D46144

llvm-svn: 331197
2018-04-30 16:49:04 +00:00

100 lines
3.4 KiB
C++

//===-- ThreadPlanCallOnFunctionExit.cpp ------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Target/ThreadPlanCallOnFunctionExit.h"
using namespace lldb;
using namespace lldb_private;
ThreadPlanCallOnFunctionExit::ThreadPlanCallOnFunctionExit(
Thread &thread, const Callback &callback)
: ThreadPlan(ThreadPlanKind::eKindGeneric, "CallOnFunctionExit", thread,
eVoteNoOpinion, eVoteNoOpinion // TODO check with Jim on these
),
m_callback(callback) {
// We are not a user-generated plan.
SetIsMasterPlan(false);
}
void ThreadPlanCallOnFunctionExit::DidPush() {
// We now want to queue the "step out" thread plan so it executes and
// completes.
// Set stop vote to eVoteNo.
m_step_out_threadplan_sp = GetThread().QueueThreadPlanForStepOut(
false, // abort other plans
nullptr, // addr_context
true, // first instruction
true, // stop other threads
eVoteNo, // do not say "we're stopping"
eVoteNoOpinion, // don't care about
// run state broadcasting
0, // frame_idx
eLazyBoolCalculate // avoid code w/o debinfo
);
}
// -------------------------------------------------------------------------
// ThreadPlan API
// -------------------------------------------------------------------------
void ThreadPlanCallOnFunctionExit::GetDescription(
Stream *s, lldb::DescriptionLevel level) {
if (!s)
return;
s->Printf("Running until completion of current function, then making "
"callback.");
}
bool ThreadPlanCallOnFunctionExit::ValidatePlan(Stream *error) {
// We'll say we're always good since I don't know what would make this
// invalid.
return true;
}
bool ThreadPlanCallOnFunctionExit::ShouldStop(Event *event_ptr) {
// If this is where we find out that an internal stop came in, then: Check if
// the step-out plan completed. If it did, then we want to run the callback
// here (our reason for living...)
if (m_step_out_threadplan_sp && m_step_out_threadplan_sp->IsPlanComplete()) {
m_callback();
// We no longer need the pointer to the step-out thread plan.
m_step_out_threadplan_sp.reset();
// Indicate that this plan is done and can be discarded.
SetPlanComplete();
// We're done now, but we want to return false so that we don't cause the
// thread to really stop.
}
return false;
}
bool ThreadPlanCallOnFunctionExit::WillStop() {
// The code looks like the return value is ignored via ThreadList::
// ShouldStop(). This is called when we really are going to stop. We don't
// care and don't need to do anything here.
return false;
}
bool ThreadPlanCallOnFunctionExit::DoPlanExplainsStop(Event *event_ptr) {
// We don't ever explain a stop. The only stop that is relevant to us
// directly is the step_out plan we added to do the heavy lifting of getting
// us past the current method.
return false;
}
lldb::StateType ThreadPlanCallOnFunctionExit::GetPlanRunState() {
// This value doesn't matter - we'll never be the top thread plan, so nobody
// will ask us this question.
return eStateRunning;
}