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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
//===- llvm/unittest/Support/ManagedStatic.cpp - ManagedStatic tests ------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/Allocator.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Config/config.h"
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#ifdef HAVE_PTHREAD_H
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#include <pthread.h>
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#endif
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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#if LLVM_ENABLE_THREADS != 0 && defined(HAVE_PTHREAD_H) && \
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!__has_feature(memory_sanitizer)
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namespace test1 {
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llvm::ManagedStatic<int> ms;
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void *helper(void*) {
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*ms;
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return nullptr;
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}
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// Valgrind's leak checker complains glibc's stack allocation.
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// To appease valgrind, we provide our own stack for each thread.
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void *allocate_stack(pthread_attr_t &a, size_t n = 65536) {
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void *stack = safe_malloc(n);
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pthread_attr_init(&a);
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#if defined(__linux__)
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pthread_attr_setstack(&a, stack, n);
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#endif
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return stack;
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}
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}
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TEST(Initialize, MultipleThreads) {
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// Run this test under tsan: http://code.google.com/p/data-race-test/
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pthread_attr_t a1, a2;
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void *p1 = test1::allocate_stack(a1);
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void *p2 = test1::allocate_stack(a2);
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pthread_t t1, t2;
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pthread_create(&t1, &a1, test1::helper, nullptr);
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pthread_create(&t2, &a2, test1::helper, nullptr);
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pthread_join(t1, nullptr);
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pthread_join(t2, nullptr);
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free(p1);
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free(p2);
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}
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#endif
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namespace NestedStatics {
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static ManagedStatic<int> Ms1;
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struct Nest {
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Nest() {
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++(*Ms1);
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}
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~Nest() {
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assert(Ms1.isConstructed());
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++(*Ms1);
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}
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};
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static ManagedStatic<Nest> Ms2;
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TEST(ManagedStaticTest, NestedStatics) {
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EXPECT_FALSE(Ms1.isConstructed());
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EXPECT_FALSE(Ms2.isConstructed());
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*Ms2;
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EXPECT_TRUE(Ms1.isConstructed());
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EXPECT_TRUE(Ms2.isConstructed());
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}
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} // namespace NestedStatics
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namespace CustomCreatorDeletor {
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struct CustomCreate {
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static void *call() {
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void *Mem = safe_malloc(sizeof(int));
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*((int *)Mem) = 42;
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return Mem;
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}
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};
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struct CustomDelete {
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static void call(void *P) { std::free(P); }
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};
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static ManagedStatic<int, CustomCreate, CustomDelete> Custom;
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TEST(ManagedStaticTest, CustomCreatorDeletor) {
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EXPECT_EQ(42, *Custom);
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}
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} // namespace CustomCreatorDeletor
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} // anonymous namespace
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