forked from OSchip/llvm-project
101 lines
2.3 KiB
C++
101 lines
2.3 KiB
C++
//===- llvm/unittest/Support/ManagedStatic.cpp - ManagedStatic tests ------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
#include "llvm/Support/ManagedStatic.h"
|
|
#include "llvm/Config/config.h"
|
|
#ifdef HAVE_PTHREAD_H
|
|
#include <pthread.h>
|
|
#endif
|
|
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
#if LLVM_ENABLE_THREADS != 0 && defined(HAVE_PTHREAD_H) && \
|
|
!__has_feature(memory_sanitizer)
|
|
namespace test1 {
|
|
llvm::ManagedStatic<int> ms;
|
|
void *helper(void*) {
|
|
*ms;
|
|
return nullptr;
|
|
}
|
|
|
|
// Valgrind's leak checker complains glibc's stack allocation.
|
|
// To appease valgrind, we provide our own stack for each thread.
|
|
void *allocate_stack(pthread_attr_t &a, size_t n = 65536) {
|
|
void *stack = malloc(n);
|
|
pthread_attr_init(&a);
|
|
#if defined(__linux__)
|
|
pthread_attr_setstack(&a, stack, n);
|
|
#endif
|
|
return stack;
|
|
}
|
|
}
|
|
|
|
TEST(Initialize, MultipleThreads) {
|
|
// Run this test under tsan: http://code.google.com/p/data-race-test/
|
|
|
|
pthread_attr_t a1, a2;
|
|
void *p1 = test1::allocate_stack(a1);
|
|
void *p2 = test1::allocate_stack(a2);
|
|
|
|
pthread_t t1, t2;
|
|
pthread_create(&t1, &a1, test1::helper, nullptr);
|
|
pthread_create(&t2, &a2, test1::helper, nullptr);
|
|
pthread_join(t1, nullptr);
|
|
pthread_join(t2, nullptr);
|
|
free(p1);
|
|
free(p2);
|
|
}
|
|
#endif
|
|
|
|
namespace NestedStatics {
|
|
static ManagedStatic<int> Ms1;
|
|
struct Nest {
|
|
Nest() {
|
|
++(*Ms1);
|
|
}
|
|
|
|
~Nest() {
|
|
assert(Ms1.isConstructed());
|
|
++(*Ms1);
|
|
}
|
|
};
|
|
static ManagedStatic<Nest> Ms2;
|
|
|
|
TEST(ManagedStaticTest, NestedStatics) {
|
|
EXPECT_FALSE(Ms1.isConstructed());
|
|
EXPECT_FALSE(Ms2.isConstructed());
|
|
|
|
*Ms2;
|
|
EXPECT_TRUE(Ms1.isConstructed());
|
|
EXPECT_TRUE(Ms2.isConstructed());
|
|
}
|
|
} // namespace NestedStatics
|
|
|
|
namespace CustomCreatorDeletor {
|
|
struct CustomCreate {
|
|
static void *call() {
|
|
void *Mem = std::malloc(sizeof(int));
|
|
*((int *)Mem) = 42;
|
|
return Mem;
|
|
}
|
|
};
|
|
struct CustomDelete {
|
|
static void call(void *P) { std::free(P); }
|
|
};
|
|
static ManagedStatic<int, CustomCreate, CustomDelete> Custom;
|
|
TEST(ManagedStaticTest, CustomCreatorDeletor) {
|
|
EXPECT_EQ(42, *Custom);
|
|
}
|
|
} // namespace CustomCreatorDeletor
|
|
|
|
} // anonymous namespace
|