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/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include <aws/testing/aws_test_harness.h>
#include <aws/common/allocator.h>
#include <aws/common/device_random.h>
#include "logging/test_logger.h"
#define NUM_ALLOCS 100
static int s_test_memtrace_count(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
struct aws_allocator *tracer = aws_mem_tracer_new(allocator, NULL, AWS_MEMTRACE_BYTES, 0);
void *allocs[NUM_ALLOCS] = {0};
size_t sizes[NUM_ALLOCS] = {0};
size_t total = 0;
for (size_t idx = 0; idx < AWS_ARRAY_SIZE(allocs); ++idx) {
uint32_t size = 0;
aws_device_random_u32(&size);
size = (size % 1024) + 1; /* not necessary to allocate a gajillion bytes */
allocs[idx] = aws_mem_acquire(tracer, size);
sizes[idx] = size;
total += size;
}
ASSERT_UINT_EQUALS(total, aws_mem_tracer_bytes(tracer));
ASSERT_UINT_EQUALS(NUM_ALLOCS, aws_mem_tracer_count(tracer));
size_t freed = 0;
for (size_t idx = 0; idx < AWS_ARRAY_SIZE(allocs); ++idx) {
uint32_t roll = 0;
aws_device_random_u32(&roll);
if (roll % 3 == 0) {
aws_mem_release(tracer, allocs[idx]);
allocs[idx] = NULL;
total -= sizes[idx];
++freed;
}
}
ASSERT_UINT_EQUALS(total, aws_mem_tracer_bytes(tracer));
ASSERT_UINT_EQUALS(NUM_ALLOCS - freed, aws_mem_tracer_count(tracer));
for (size_t idx = 0; idx < AWS_ARRAY_SIZE(allocs); ++idx) {
if (allocs[idx]) {
aws_mem_release(tracer, allocs[idx]);
}
}
ASSERT_UINT_EQUALS(0, aws_mem_tracer_bytes(tracer));
ASSERT_UINT_EQUALS(0, aws_mem_tracer_count(tracer));
struct aws_allocator *original = aws_mem_tracer_destroy(tracer);
ASSERT_PTR_EQUALS(allocator, original);
return 0;
}
AWS_TEST_CASE(test_memtrace_count, s_test_memtrace_count)
#if defined(__GNUC__) || defined(__clang__)
# define AWS_PREVENT_OPTIMIZATION __asm__ __volatile__("" ::: "memory")
#else
# define AWS_PREVENT_OPTIMIZATION
#endif
AWS_NO_INLINE void *s_alloc_1(struct aws_allocator *allocator, size_t size) {
AWS_PREVENT_OPTIMIZATION;
return aws_mem_acquire(allocator, size);
}
AWS_NO_INLINE void *s_alloc_2(struct aws_allocator *allocator, size_t size) {
AWS_PREVENT_OPTIMIZATION;
return aws_mem_acquire(allocator, size);
}
AWS_NO_INLINE void *s_alloc_3(struct aws_allocator *allocator, size_t size) {
AWS_PREVENT_OPTIMIZATION;
return aws_mem_acquire(allocator, size);
}
AWS_NO_INLINE void *s_alloc_4(struct aws_allocator *allocator, size_t size) {
AWS_PREVENT_OPTIMIZATION;
return aws_mem_acquire(allocator, size);
}
static struct aws_logger s_test_logger;
static int s_test_memtrace_stacks(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
/* only bother to run this test if the platform can do a backtrace */
void *probe_stack[1];
if (!aws_backtrace(probe_stack, 1)) {
return 0;
}
test_logger_init(&s_test_logger, allocator, AWS_LL_TRACE, 0);
aws_logger_set(&s_test_logger);
struct aws_allocator *tracer = aws_mem_tracer_new(allocator, NULL, AWS_MEMTRACE_STACKS, 8);
void *allocs[NUM_ALLOCS] = {0};
size_t total = 0;
for (size_t idx = 0; idx < AWS_ARRAY_SIZE(allocs); ++idx) {
uint32_t size = 0;
aws_device_random_u32(&size);
size = (size % 1024) + 1; /* not necessary to allocate a gajillion bytes */
void *(*allocate)(struct aws_allocator *, size_t) = NULL;
switch (idx % 4) {
case 0:
allocate = s_alloc_1;
break;
case 1:
allocate = s_alloc_2;
break;
case 2:
allocate = s_alloc_3;
break;
case 3:
allocate = s_alloc_4;
break;
}
allocs[idx] = allocate(tracer, size);
total += size;
}
ASSERT_UINT_EQUALS(total, aws_mem_tracer_bytes(tracer));
ASSERT_UINT_EQUALS(NUM_ALLOCS, aws_mem_tracer_count(tracer));
aws_mem_tracer_dump(tracer);
/* make sure all of the functions that allocated are found */
struct test_logger_impl *test_logger = s_test_logger.p_impl;
/* if this is not a debug build, there may not be symbols, so the test cannot
* verify if a best effort was made */
#if defined(DEBUG_BUILD)
/* fprintf(stderr, "%s\n", test_logger->log_buffer.buffer); */
char s_alloc_1_addr[32];
char s_alloc_2_addr[32];
char s_alloc_3_addr[32];
char s_alloc_4_addr[32];
# if defined(_MSC_VER)
# pragma warning(push)
# pragma warning(disable : 4054) /* type cast function pointer to data pointer */
snprintf(s_alloc_1_addr, AWS_ARRAY_SIZE(s_alloc_1_addr), "0x%tx", (uintptr_t)(void *)s_alloc_1);
snprintf(s_alloc_2_addr, AWS_ARRAY_SIZE(s_alloc_2_addr), "0x%tx", (uintptr_t)(void *)s_alloc_2);
snprintf(s_alloc_3_addr, AWS_ARRAY_SIZE(s_alloc_3_addr), "0x%tx", (uintptr_t)(void *)s_alloc_3);
snprintf(s_alloc_4_addr, AWS_ARRAY_SIZE(s_alloc_4_addr), "0x%tx", (uintptr_t)(void *)s_alloc_4);
# pragma warning(pop)
# endif /* defined(_MSC_VER) */
const char *log_buffer = (const char *)test_logger->log_buffer.buffer;
ASSERT_TRUE(strstr(log_buffer, "s_alloc_1") || strstr(log_buffer, s_alloc_1_addr));
ASSERT_TRUE(strstr(log_buffer, "s_alloc_2") || strstr(log_buffer, s_alloc_2_addr));
ASSERT_TRUE(strstr(log_buffer, "s_alloc_3") || strstr(log_buffer, s_alloc_3_addr));
ASSERT_TRUE(strstr(log_buffer, "s_alloc_4") || strstr(log_buffer, s_alloc_4_addr));
#endif
/* reset log */
aws_byte_buf_reset(&test_logger->log_buffer, true);
for (size_t idx = 0; idx < AWS_ARRAY_SIZE(allocs); ++idx) {
if (allocs[idx]) {
aws_mem_release(tracer, allocs[idx]);
}
}
ASSERT_UINT_EQUALS(0, aws_mem_tracer_bytes(tracer));
ASSERT_UINT_EQUALS(0, aws_mem_tracer_count(tracer));
aws_mem_tracer_dump(tracer);
/* Make sure no known allocs are left */
ASSERT_UINT_EQUALS(0, test_logger->log_buffer.len);
struct aws_allocator *original = aws_mem_tracer_destroy(tracer);
ASSERT_PTR_EQUALS(allocator, original);
aws_logger_clean_up(&s_test_logger);
return 0;
}
AWS_TEST_CASE(test_memtrace_stacks, s_test_memtrace_stacks)
static int s_test_memtrace_none(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
struct aws_allocator *tracer = aws_mem_tracer_new(allocator, NULL, AWS_MEMTRACE_NONE, 0);
void *allocs[NUM_ALLOCS] = {0};
for (size_t idx = 0; idx < AWS_ARRAY_SIZE(allocs); ++idx) {
uint32_t size = 0;
aws_device_random_u32(&size);
size = (size % 1024) + 1; /* not necessary to allocate a gajillion bytes */
allocs[idx] = aws_mem_acquire(tracer, size);
}
ASSERT_UINT_EQUALS(0, aws_mem_tracer_bytes(tracer));
for (size_t idx = 0; idx < AWS_ARRAY_SIZE(allocs); ++idx) {
if (allocs[idx]) {
aws_mem_release(tracer, allocs[idx]);
}
}
ASSERT_UINT_EQUALS(0, aws_mem_tracer_bytes(tracer));
struct aws_allocator *original = aws_mem_tracer_destroy(tracer);
ASSERT_PTR_EQUALS(allocator, original);
return 0;
}
AWS_TEST_CASE(test_memtrace_none, s_test_memtrace_none)
static int s_test_memtrace_midstream(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
void *allocs[NUM_ALLOCS] = {0};
/* allocate some from the base allocator first */
for (size_t idx = 0; idx < AWS_ARRAY_SIZE(allocs) / 4; ++idx) {
uint32_t size = 0;
aws_device_random_u32(&size);
size = (size % 1024) + 1; /* not necessary to allocate a gajillion bytes */
allocs[idx] = aws_mem_acquire(allocator, size);
}
struct aws_allocator *tracer = aws_mem_tracer_new(allocator, NULL, AWS_MEMTRACE_BYTES, 0);
/* Now allocate from the tracer, and make sure everything still works */
size_t total = 0;
size_t tracked_allocs = 0;
for (size_t idx = AWS_ARRAY_SIZE(allocs) / 4 + 1; idx < AWS_ARRAY_SIZE(allocs); ++idx) {
uint32_t size = 0;
aws_device_random_u32(&size);
size = (size % 1024) + 1; /* not necessary to allocate a gajillion bytes */
allocs[idx] = aws_mem_acquire(tracer, size);
total += size;
++tracked_allocs;
}
ASSERT_UINT_EQUALS(total, aws_mem_tracer_bytes(tracer));
ASSERT_UINT_EQUALS(tracked_allocs, aws_mem_tracer_count(tracer));
for (size_t idx = 0; idx < AWS_ARRAY_SIZE(allocs); ++idx) {
if (allocs[idx]) {
aws_mem_release(tracer, allocs[idx]);
}
}
ASSERT_UINT_EQUALS(0, aws_mem_tracer_bytes(tracer));
ASSERT_UINT_EQUALS(0, aws_mem_tracer_count(tracer));
struct aws_allocator *original = aws_mem_tracer_destroy(tracer);
ASSERT_PTR_EQUALS(allocator, original);
return 0;
}
AWS_TEST_CASE(test_memtrace_midstream, s_test_memtrace_midstream)
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