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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
*
* 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 "common_test_environment.h"
#include "file_content_manipulations.h"
#include "trace.h"
#include "symbol_searcher.h"
#include "memory_pool_for_symbol_searcher_internals.h"
#include <limits>
extern std::unique_ptr<Trace> GlobalTrace;
namespace backstage
{
struct ReallocStub : public TestEnv
{
ReallocStub() : TestEnv("./realloc_interception_test.log") {}
};
TEST_F(ReallocStub, must_allocate_space_as_standard_realloc)
{
void *p = malloc(128);
p = realloc(p, 1024);
ASSERT_TRUE(p);
free(p);
}
TEST_F(ReallocStub, must_log_allocation_deallocation_events_if_trace_is_ready_for_it)
{
std::array<char, 1024> reference_data;
reference_data.fill('a');
void *p1 = malloc(1024);
memcpy(p1, reference_data.data(), reference_data.size());
void *p2 = realloc(p1, 64);
void *p3 = realloc(p2, 128);
GlobalTrace.reset();
ASSERT_TRUE(p3);
ASSERT_TRUE(memcmp(p3, reference_data.data(), 64) == 0);
ASSERT_STREQ(getContentOfFile("./realloc_interception_test.log").c_str(),
"On CPU - Peak heap usage: 1024 B, Total allocated: 1216 B, Total deallocated: 1088 "
"B\nOn GPU - Peak mem usage: 0 B, Total allocated: 0 B, Total deallocated: 0 B\n");
free(p3);
}
TEST_F(ReallocStub,
must_not_do_the_record_about_allocation_deallocation_events_if_original_function_failed)
{
GlobalTrace.reset();
void *p = malloc(128);
GlobalTrace.reset(new Trace);
void *ptr_after_realloc = realloc(p, std::numeric_limits<size_t>::max());
ptr_after_realloc = realloc(p, 0);
GlobalTrace.reset();
ASSERT_FALSE(ptr_after_realloc);
ASSERT_STREQ(getContentOfFile("./realloc_interception_test.log").c_str(),
"On CPU - Peak heap usage: 0 B, Total allocated: 0 B, Total deallocated: 0 B\nOn "
"GPU - Peak mem usage: 0 B, Total allocated: 0 B, Total deallocated: 0 B\n");
free(p);
}
TEST_F(ReallocStub, should_work_as_malloc_when_incoming_ptr_is_equal_to_nullptr)
{
void *p = realloc(nullptr, 1024);
GlobalTrace.reset();
ASSERT_TRUE(p);
ASSERT_STREQ(
getContentOfFile("./realloc_interception_test.log").c_str(),
"On CPU - Peak heap usage: 1024 B, Total allocated: 1024 B, Total deallocated: 0 B\nOn "
"GPU - Peak mem usage: 0 B, Total allocated: 0 B, Total deallocated: 0 B\n");
free(p);
}
TEST_F(
ReallocStub,
should_not_influence_on_trace_results_even_if_orignal_function_return_any_not_null_ptr_when_incoming_size_is_zero_and_ptr_is_null)
{
void *p = realloc(nullptr, 0);
free(p);
GlobalTrace.reset();
ASSERT_TRUE(p);
ASSERT_STREQ(getContentOfFile("./realloc_interception_test.log").c_str(),
"On CPU - Peak heap usage: 0 B, Total allocated: 0 B, Total deallocated: 0 B\nOn "
"GPU - Peak mem usage: 0 B, Total allocated: 0 B, Total deallocated: 0 B\n");
}
TEST_F(ReallocStub, should_allocate_memory_from_pool_for_symbol_searcher_internal_usage_if_need)
{
signalizeThatNextAllocationsWillBeForSymbolSearcherInternalUsage();
void *p = malloc(128);
p = realloc(p, 1024);
signalizeThatSymbolSearcherEndedOfWork();
GlobalTrace.reset();
MemoryPoolForSymbolSearcherInternals pool;
ASSERT_TRUE(p);
ASSERT_TRUE(pool.containsMemorySpaceStartedFromPointer(p));
ASSERT_STREQ(getContentOfFile("./realloc_interception_test.log").c_str(),
"On CPU - Peak heap usage: 0 B, Total allocated: 0 B, Total deallocated: 0 B\nOn "
"GPU - Peak mem usage: 0 B, Total allocated: 0 B, Total deallocated: 0 B\n");
}
} // namespace backstage
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