Files
clang-p2996/lldb/source/Host/windows/HostProcessWindows.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

121 lines
3.7 KiB
C++

//===-- HostProcessWindows.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/Host/windows/HostProcessWindows.h"
#include "lldb/Host/HostThread.h"
#include "lldb/Host/ThreadLauncher.h"
#include "lldb/Host/windows/windows.h"
#include "lldb/Utility/FileSpec.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/ConvertUTF.h"
#include <psapi.h>
using namespace lldb_private;
namespace {
struct MonitorInfo {
Host::MonitorChildProcessCallback callback;
HANDLE process_handle;
};
}
HostProcessWindows::HostProcessWindows()
: HostNativeProcessBase(), m_owns_handle(true) {}
HostProcessWindows::HostProcessWindows(lldb::process_t process)
: HostNativeProcessBase(process), m_owns_handle(true) {}
HostProcessWindows::~HostProcessWindows() { Close(); }
void HostProcessWindows::SetOwnsHandle(bool owns) { m_owns_handle = owns; }
Status HostProcessWindows::Terminate() {
Status error;
if (m_process == nullptr)
error.SetError(ERROR_INVALID_HANDLE, lldb::eErrorTypeWin32);
if (!::TerminateProcess(m_process, 0))
error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
return error;
}
Status HostProcessWindows::GetMainModule(FileSpec &file_spec) const {
Status error;
if (m_process == nullptr)
error.SetError(ERROR_INVALID_HANDLE, lldb::eErrorTypeWin32);
std::vector<wchar_t> wpath(PATH_MAX);
if (::GetProcessImageFileNameW(m_process, wpath.data(), wpath.size())) {
std::string path;
if (llvm::convertWideToUTF8(wpath.data(), path))
file_spec.SetFile(path, false);
else
error.SetErrorString("Error converting path to UTF-8");
} else
error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
return error;
}
lldb::pid_t HostProcessWindows::GetProcessId() const {
return (m_process == LLDB_INVALID_PROCESS) ? -1 : ::GetProcessId(m_process);
}
bool HostProcessWindows::IsRunning() const {
if (m_process == nullptr)
return false;
DWORD code = 0;
if (!::GetExitCodeProcess(m_process, &code))
return false;
return (code == STILL_ACTIVE);
}
HostThread HostProcessWindows::StartMonitoring(
const Host::MonitorChildProcessCallback &callback, bool monitor_signals) {
HostThread monitor_thread;
MonitorInfo *info = new MonitorInfo;
info->callback = callback;
// Since the life of this HostProcessWindows instance and the life of the
// process may be different, duplicate the handle so that the monitor thread
// can have ownership over its own copy of the handle.
HostThread result;
if (::DuplicateHandle(GetCurrentProcess(), m_process, GetCurrentProcess(),
&info->process_handle, 0, FALSE, DUPLICATE_SAME_ACCESS))
result = ThreadLauncher::LaunchThread("ChildProcessMonitor",
HostProcessWindows::MonitorThread,
info, nullptr);
return result;
}
lldb::thread_result_t HostProcessWindows::MonitorThread(void *thread_arg) {
DWORD exit_code;
MonitorInfo *info = static_cast<MonitorInfo *>(thread_arg);
if (info) {
::WaitForSingleObject(info->process_handle, INFINITE);
::GetExitCodeProcess(info->process_handle, &exit_code);
info->callback(::GetProcessId(info->process_handle), true, 0, exit_code);
::CloseHandle(info->process_handle);
delete (info);
}
return 0;
}
void HostProcessWindows::Close() {
if (m_owns_handle && m_process != LLDB_INVALID_PROCESS)
::CloseHandle(m_process);
m_process = nullptr;
}