blob: 05afe30680c8f3db9d44eaef68508ad9f7a65483 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/util/memory_allocator.h>
#include <iosfwd>
namespace vespalib::alloc::test {
/*
* Instrumented memory allocator proxy which observes usage.
*/
class MemoryAllocatorObserver : public MemoryAllocator {
public:
struct Stats {
size_t alloc_cnt;
size_t free_cnt;
Stats()
: Stats(0, 0)
{
}
Stats(size_t alloc_cnt_in, size_t free_cnt_in)
: alloc_cnt(alloc_cnt_in),
free_cnt(free_cnt_in)
{
}
bool operator==(const Stats &rhs) const {
return ((alloc_cnt == rhs.alloc_cnt) &&
(free_cnt == rhs.free_cnt));
}
};
private:
Stats &_stats;
const alloc::MemoryAllocator* _backing_allocator;
public:
MemoryAllocatorObserver(Stats &stats);
~MemoryAllocatorObserver() override;
PtrAndSize alloc(size_t sz) const override;
void free(PtrAndSize alloc) const noexcept override;
size_t resize_inplace(PtrAndSize current, size_t newSize) const override;
};
std::ostream& operator<<(std::ostream &os, const MemoryAllocatorObserver::Stats &stats);
}
|
