xref: /llvm-project/clang-tools-extra/clang-tidy/android/CloexecEpollCreateCheck.cpp (revision 7d2ea6c422d3f5712b7253407005e1a465a76946) 
1 //===--- CloexecEpollCreateCheck.cpp - clang-tidy--------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "CloexecEpollCreateCheck.h"
10 #include "clang/AST/ASTContext.h"
11 #include "clang/ASTMatchers/ASTMatchFinder.h"
12 
13 using namespace clang::ast_matchers;
14 
15 namespace clang::tidy::android {
16 
registerMatchers(MatchFinder * Finder)17 void CloexecEpollCreateCheck::registerMatchers(MatchFinder *Finder) {
18   registerMatchersImpl(
19       Finder, functionDecl(returns(isInteger()), hasName("epoll_create"),
20                            hasParameter(0, hasType(isInteger()))));
21 }
22 
check(const MatchFinder::MatchResult & Result)23 void CloexecEpollCreateCheck::check(const MatchFinder::MatchResult &Result) {
24   replaceFunc(Result,
25               "prefer epoll_create() to epoll_create1() "
26               "because epoll_create1() allows "
27               "EPOLL_CLOEXEC",
28               "epoll_create1(EPOLL_CLOEXEC)");
29 }
30 
31 } // namespace clang::tidy::android
32