| // Copyright 2020 The Pigweed Authors |
| // |
| // 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 |
| // |
| // https://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 "pw_malloc_freelist/freelist_malloc.h" |
| |
| #include <span> |
| |
| #include "gtest/gtest.h" |
| #include "pw_allocator/freelist_heap.h" |
| |
| namespace pw::allocator { |
| |
| TEST(FreeListMalloc, ReplacingMalloc) { |
| constexpr size_t kAllocSize = 256; |
| constexpr size_t kReallocSize = 512; |
| constexpr size_t kCallocNum = 4; |
| constexpr size_t kCallocSize = 64; |
| constexpr size_t zero = 0; |
| |
| void* ptr1 = malloc(kAllocSize); |
| const FreeListHeap::HeapStats& freelist_heap_stats = |
| pw_freelist_heap->heap_stats(); |
| ASSERT_NE(ptr1, nullptr); |
| EXPECT_EQ(freelist_heap_stats.bytes_allocated, kAllocSize); |
| EXPECT_EQ(freelist_heap_stats.cumulative_allocated, kAllocSize); |
| EXPECT_EQ(freelist_heap_stats.cumulative_freed, zero); |
| void* ptr2 = realloc(ptr1, kReallocSize); |
| ASSERT_NE(ptr2, nullptr); |
| EXPECT_EQ(freelist_heap_stats.bytes_allocated, kReallocSize); |
| EXPECT_EQ(freelist_heap_stats.cumulative_allocated, |
| kAllocSize + kReallocSize); |
| EXPECT_EQ(freelist_heap_stats.cumulative_freed, kAllocSize); |
| void* ptr3 = calloc(kCallocNum, kCallocSize); |
| ASSERT_NE(ptr3, nullptr); |
| EXPECT_EQ(freelist_heap_stats.bytes_allocated, |
| kReallocSize + kCallocNum * kCallocSize); |
| EXPECT_EQ(freelist_heap_stats.cumulative_allocated, |
| kAllocSize + kReallocSize + kCallocNum * kCallocSize); |
| EXPECT_EQ(freelist_heap_stats.cumulative_freed, kAllocSize); |
| free(ptr2); |
| EXPECT_EQ(freelist_heap_stats.bytes_allocated, kCallocNum * kCallocSize); |
| EXPECT_EQ(freelist_heap_stats.cumulative_allocated, |
| kAllocSize + kReallocSize + kCallocNum * kCallocSize); |
| EXPECT_EQ(freelist_heap_stats.cumulative_freed, kAllocSize + kReallocSize); |
| free(ptr3); |
| EXPECT_EQ(freelist_heap_stats.bytes_allocated, zero); |
| EXPECT_EQ(freelist_heap_stats.cumulative_allocated, |
| kAllocSize + kReallocSize + kCallocNum * kCallocSize); |
| EXPECT_EQ(freelist_heap_stats.cumulative_freed, |
| kAllocSize + kReallocSize + kCallocNum * kCallocSize); |
| } |
| |
| } // namespace pw::allocator |