llvm-project/lldb/source/Host/common/ProcessRunLock.cpp
Konrad Kleine 248a13057a [lldb] NFC modernize codebase with modernize-use-nullptr
Summary:
NFC = [[ https://llvm.org/docs/Lexicon.html#nfc | Non functional change ]]

This commit is the result of modernizing the LLDB codebase by using
`nullptr` instread of `0` or `NULL`. See
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-nullptr.html
for more information.

This is the command I ran and I to fix and format the code base:

```
run-clang-tidy.py \
	-header-filter='.*' \
	-checks='-*,modernize-use-nullptr' \
	-fix ~/dev/llvm-project/lldb/.* \
	-format \
	-style LLVM \
	-p ~/llvm-builds/debug-ninja-gcc
```

NOTE: There were also changes to `llvm/utils/unittest` but I did not
include them because I felt that maybe this library shall be updated in
isolation somehow.

NOTE: I know this is a rather large commit but it is a nobrainer in most
parts.

Reviewers: martong, espindola, shafik, #lldb, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: arsenm, jvesely, nhaehnle, hiraditya, JDevlieghere, teemperor, rnkovacs, emaste, kubamracek, nemanjai, ki.stfu, javed.absar, arichardson, kbarton, jrtc27, MaskRay, atanasyan, dexonsmith, arphaman, jfb, jsji, jdoerfert, lldb-commits, llvm-commits

Tags: #lldb, #llvm

Differential Revision: https://reviews.llvm.org/D61847

llvm-svn: 361484
2019-05-23 11:14:47 +00:00

65 lines
1.4 KiB
C++

//===-- ProcessRunLock.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
//
//===----------------------------------------------------------------------===//
#ifndef _WIN32
#include "lldb/Host/ProcessRunLock.h"
namespace lldb_private {
ProcessRunLock::ProcessRunLock() : m_running(false) {
int err = ::pthread_rwlock_init(&m_rwlock, nullptr);
(void)err;
}
ProcessRunLock::~ProcessRunLock() {
int err = ::pthread_rwlock_destroy(&m_rwlock);
(void)err;
}
bool ProcessRunLock::ReadTryLock() {
::pthread_rwlock_rdlock(&m_rwlock);
if (!m_running) {
return true;
}
::pthread_rwlock_unlock(&m_rwlock);
return false;
}
bool ProcessRunLock::ReadUnlock() {
return ::pthread_rwlock_unlock(&m_rwlock) == 0;
}
bool ProcessRunLock::SetRunning() {
::pthread_rwlock_wrlock(&m_rwlock);
m_running = true;
::pthread_rwlock_unlock(&m_rwlock);
return true;
}
bool ProcessRunLock::TrySetRunning() {
bool r;
if (::pthread_rwlock_trywrlock(&m_rwlock) == 0) {
r = !m_running;
m_running = true;
::pthread_rwlock_unlock(&m_rwlock);
return r;
}
return false;
}
bool ProcessRunLock::SetStopped() {
::pthread_rwlock_wrlock(&m_rwlock);
m_running = false;
::pthread_rwlock_unlock(&m_rwlock);
return true;
}
}
#endif