1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <malloc.h> 18 #include <stdint.h> 19 20 #include <gtest/gtest.h> 21 22 namespace unwindstack { 23 TestCheckForLeaks(void (* unwind_func)(void *),void * data)24void TestCheckForLeaks(void (*unwind_func)(void*), void* data) { 25 static constexpr size_t kNumLeakLoops = 200; 26 static constexpr size_t kMaxAllowedLeakBytes = 32 * 1024; 27 28 size_t first_allocated_bytes = 0; 29 size_t last_allocated_bytes = 0; 30 for (size_t i = 0; i < kNumLeakLoops; i++) { 31 unwind_func(data); 32 33 size_t allocated_bytes = mallinfo().uordblks; 34 if (first_allocated_bytes == 0) { 35 first_allocated_bytes = allocated_bytes; 36 } else if (last_allocated_bytes > first_allocated_bytes) { 37 // Check that the memory did not increase too much over the first loop. 38 ASSERT_LE(last_allocated_bytes - first_allocated_bytes, kMaxAllowedLeakBytes); 39 } 40 last_allocated_bytes = allocated_bytes; 41 } 42 } 43 44 } // namespace unwindstack 45