Files
llvm-project/clang-tools-extra/clang-tidy/android/CloexecEpollCreateCheck.cpp
Chih-Hung Hsieh 41d29b15e8 [clang-tidy] Add a close-on-exec check on epoll_create() in Android module.
Summary:
epoll_create() is better to be replaced by epoll_create1() with EPOLL_CLOEXEC
flag to avoid file descriptor leakage.

Differential Revision: https://reviews.llvm.org/D35367

llvm-svn: 311029
2017-08-16 18:02:49 +00:00

37 lines
1.1 KiB
C++

//===--- CloexecEpollCreateCheck.cpp - clang-tidy--------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "CloexecEpollCreateCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
using namespace clang::ast_matchers;
namespace clang {
namespace tidy {
namespace android {
void CloexecEpollCreateCheck::registerMatchers(MatchFinder *Finder) {
registerMatchersImpl(
Finder, functionDecl(returns(isInteger()), hasName("epoll_create"),
hasParameter(0, hasType(isInteger()))));
}
void CloexecEpollCreateCheck::check(const MatchFinder::MatchResult &Result) {
replaceFunc(Result,
"prefer epoll_create() to epoll_create1() "
"because epoll_create1() allows "
"EPOLL_CLOEXEC",
"epoll_create1(EPOLL_CLOEXEC)");
}
} // namespace android
} // namespace tidy
} // namespace clang