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Side by Side Diff: runtime/vm/malloc_hooks_test.cc

Issue 2645973002: Revert "Implemented basic heap memory allocation tracking in MallocHooks using hooks registered wit… (Closed)
Patch Set: Created 3 years, 11 months ago
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1 // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file.
4
5 #include "platform/globals.h"
6
7 #if defined(DART_USE_TCMALLOC) && !defined(PRODUCT)
8
9 #include "platform/assert.h"
10 #include "vm/class_finalizer.h"
11 #include "vm/globals.h"
12 #include "vm/malloc_hooks.h"
13 #include "vm/symbols.h"
14 #include "vm/unit_test.h"
15
16 namespace dart {
17
18 // Note: for these tests, there is no need to call MallocHooks::Init() or
19 // MallocHooks::TearDown() as this is all done by the VM test framework.
20
21 static void MallocHookTestBufferInitializer(volatile char* buffer,
22 uintptr_t size) {
23 // Run through the buffer and do something. If we don't do this and the memory
24 // in buffer isn't touched, the tcmalloc hooks won't be called.
25 for (uintptr_t i = 0; i < size; ++i) {
26 buffer[i] = i;
27 }
28 }
29
30
31 UNIT_TEST_CASE(BasicMallocHookTest) {
32 MallocHooks::ResetStats();
33 EXPECT_EQ(0L, MallocHooks::allocation_count());
34 EXPECT_EQ(0L, MallocHooks::heap_allocated_memory_in_bytes());
35
36 const intptr_t buffer_size = 10;
37 char* buffer = new char[buffer_size];
38 MallocHookTestBufferInitializer(buffer, buffer_size);
39
40 EXPECT_EQ(1L, MallocHooks::allocation_count());
41 EXPECT_EQ(static_cast<intptr_t>(sizeof(char) * buffer_size),
42 MallocHooks::heap_allocated_memory_in_bytes());
43
44 delete[] buffer;
45 EXPECT_EQ(0L, MallocHooks::allocation_count());
46 EXPECT_EQ(0L, MallocHooks::heap_allocated_memory_in_bytes());
47 }
48
49
50 UNIT_TEST_CASE(FreeUnseenMemoryMallocHookTest) {
51 const intptr_t pre_hook_buffer_size = 3;
52 char* pre_hook_buffer = new char[pre_hook_buffer_size];
53 MallocHookTestBufferInitializer(pre_hook_buffer, pre_hook_buffer_size);
54
55 MallocHooks::ResetStats();
56 EXPECT_EQ(0L, MallocHooks::allocation_count());
57 EXPECT_EQ(0L, MallocHooks::heap_allocated_memory_in_bytes());
58
59 const intptr_t buffer_size = 10;
60 volatile char* buffer = new char[buffer_size];
61 MallocHookTestBufferInitializer(buffer, buffer_size);
62
63 EXPECT_EQ(1L, MallocHooks::allocation_count());
64 EXPECT_EQ(static_cast<intptr_t>(sizeof(char) * buffer_size),
65 MallocHooks::heap_allocated_memory_in_bytes());
66
67 delete[] pre_hook_buffer;
68 EXPECT_EQ(1L, MallocHooks::allocation_count());
69 EXPECT_EQ(static_cast<intptr_t>(sizeof(char) * buffer_size),
70 MallocHooks::heap_allocated_memory_in_bytes());
71
72
73 delete[] buffer;
74 EXPECT_EQ(0L, MallocHooks::allocation_count());
75 EXPECT_EQ(0L, MallocHooks::heap_allocated_memory_in_bytes());
76 }
77
78 }; // namespace dart
79
80 #endif // defined(DART_USE_TCMALLOC) && !defined(PRODUCT)
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