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/*
* Copyright (C) 2019 The Android Open Source Project
*
* 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 <dlfcn.h>
#include <malloc.h>
#include <stdint.h>
#include <string>
#include <gtest/gtest.h>
#include "TestUtils.h"
namespace unwindstack {
void TestCheckForLeaks(void (*unwind_func)(void*), void* data) {
static constexpr size_t kNumLeakLoops = 200;
static constexpr size_t kMaxAllowedLeakBytes = 32 * 1024;
size_t first_allocated_bytes = 0;
size_t last_allocated_bytes = 0;
for (size_t i = 0; i < kNumLeakLoops; i++) {
unwind_func(data);
size_t allocated_bytes = mallinfo().uordblks;
if (first_allocated_bytes == 0) {
first_allocated_bytes = allocated_bytes;
} else if (last_allocated_bytes > first_allocated_bytes) {
// Check that the memory did not increase too much over the first loop.
ASSERT_LE(last_allocated_bytes - first_allocated_bytes, kMaxAllowedLeakBytes)
<< "Failed on loop " << i + 1;
}
last_allocated_bytes = allocated_bytes;
}
}
void* GetTestLibHandle() {
std::string testlib(testing::internal::GetArgvs()[0]);
auto const value = testlib.find_last_of('/');
if (value != std::string::npos) {
testlib = testlib.substr(0, value + 1);
} else {
testlib = "";
}
testlib += "libunwindstack_local.so";
return dlopen(testlib.c_str(), RTLD_NOW);
}
} // namespace unwindstack
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