1//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14
10// TODO: Change to XFAIL once https://github.com/llvm/llvm-project/issues/40340 is fixed
11// UNSUPPORTED: availability-pmr-missing
12
13// <memory_resource>
14
15// class unsynchronized_pool_resource
16
17#include <memory_resource>
18#include <cassert>
19
20#include "count_new.h"
21#include "test_macros.h"
22
23int main(int, char**) {
24 globalMemCounter.reset();
25 {
26 auto unsync1 = std::pmr::unsynchronized_pool_resource(std::pmr::new_delete_resource());
27 std::pmr::memory_resource& r1 = unsync1;
28
29 void* ret = r1.allocate(bytes: 50);
30 assert(ret);
31 ASSERT_WITH_LIBRARY_INTERNAL_ALLOCATIONS(globalMemCounter.checkNewCalledGreaterThan(0));
32 assert(globalMemCounter.checkDeleteCalledEq(0));
33
34 r1.deallocate(p: ret, bytes: 50);
35 unsync1.release();
36 ASSERT_WITH_LIBRARY_INTERNAL_ALLOCATIONS(globalMemCounter.checkDeleteCalledGreaterThan(0));
37 assert(globalMemCounter.checkOutstandingNewEq(0));
38
39 globalMemCounter.reset();
40
41 ret = r1.allocate(bytes: 500);
42 assert(ret);
43 ASSERT_WITH_LIBRARY_INTERNAL_ALLOCATIONS(globalMemCounter.checkNewCalledGreaterThan(0));
44 assert(globalMemCounter.checkDeleteCalledEq(0));
45
46 // Check that the destructor calls release()
47 }
48 ASSERT_WITH_LIBRARY_INTERNAL_ALLOCATIONS(globalMemCounter.checkDeleteCalledGreaterThan(0));
49 assert(globalMemCounter.checkOutstandingNewEq(0));
50
51 return 0;
52}
53

source code of libcxx/test/std/utilities/utility/mem.res/mem.res.pool/mem.res.pool.mem/unsync_allocate.pass.cpp