123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566 |
- /*
- * Copyright 2017-present Facebook, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #include <folly/experimental/hazptr/memory_resource.h>
- namespace folly {
- namespace hazptr {
- namespace {
- memory_resource** default_mr_ptr() {
- /* library-local */ static memory_resource* default_mr =
- new_delete_resource();
- HAZPTR_DEBUG_PRINT(&default_mr << " " << default_mr);
- return &default_mr;
- }
- } // namespace
- memory_resource* get_default_resource() {
- HAZPTR_DEBUG_PRINT("");
- return *default_mr_ptr();
- }
- void set_default_resource(memory_resource* mr) {
- HAZPTR_DEBUG_PRINT("");
- *default_mr_ptr() = mr;
- }
- memory_resource* new_delete_resource() {
- class new_delete : public memory_resource {
- public:
- void* allocate(const size_t bytes, const size_t alignment = max_align_v)
- override {
- (void)alignment;
- void* p = static_cast<void*>(new char[bytes]);
- HAZPTR_DEBUG_PRINT(this << " " << p << " " << bytes);
- return p;
- }
- void deallocate(
- void* p,
- const size_t bytes,
- const size_t alignment = max_align_v) override {
- (void)alignment;
- (void)bytes;
- HAZPTR_DEBUG_PRINT(p << " " << bytes);
- delete[] static_cast<char*>(p);
- }
- };
- static new_delete mr;
- return &mr;
- }
- } // namespace hazptr
- } // namespace folly
|