blob: a9f5e0046db766bd71f9ce994ac33f6fa7cc8ef8 (
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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "common.h"
#include "freelist.h"
#include <vespamalloc/util/traceutil.h>
#include <vespamalloc/util/stream.h>
namespace vespamalloc::segment {
class IMemBlockInfo {
public:
virtual ~IMemBlockInfo() = default;
virtual bool allocated() const = 0;
virtual uint32_t threadId() const = 0;
virtual void info(FILE * os, int level) const = 0;
virtual uint32_t callStackLen() const = 0;
virtual const StackEntry * callStack() const = 0;
};
class IHelper {
public:
virtual ~IHelper() = default;
virtual size_t classSize(SizeClassT sc) const = 0;
virtual void dumpInfo(int level) const = 0;
virtual std::unique_ptr<IMemBlockInfo> createMemblockInfo(void * ptr) const = 0;
};
class DataSegment
{
public:
DataSegment(const DataSegment & rhs) = delete;
DataSegment & operator = (const DataSegment & rhs) = delete;
explicit DataSegment(const IHelper & helper) __attribute__((noinline));
~DataSegment() __attribute__((noinline));
void * getBlock(size_t & oldBlockSize, SizeClassT sc) __attribute__((noinline));
void returnBlock(void *ptr) __attribute__((noinline));
SizeClassT sizeClass(const void * ptr) const { return _blockList[blockId(ptr)].sizeClass(); }
bool containsPtr(const void * ptr) const { return blockId(ptr) < BlockCount; }
template<typename MemBlockPtrT>
size_t getMaxSize(const void * ptr) const { return _blockList[blockId(ptr)].getMaxSize<MemBlockPtrT>(); }
const void * start() const { return _osMemory.getStart(); }
const void * end() const { return _osMemory.getEnd(); }
static SizeClassT adjustedSizeClass(size_t sz) { return (sz >> 16) + 0x400; }
static size_t adjustedClassSize(SizeClassT sc) { return (sc > 0x400) ? (sc - 0x400) << 16 : sc; }
size_t dataSize() const { return (const char*)end() - (const char*)start(); }
size_t freeSize() const;
size_t infoThread(FILE * os, int level, uint32_t thread, SizeClassT sct, uint32_t maxThreadId=0) const __attribute__((noinline));
void info(FILE * os, size_t level) __attribute__((noinline));
void setupLog(size_t bigMemLogLevel, size_t bigLimit, size_t bigIncrement, size_t allocs2Show) {
_bigSegmentLogLevel = bigMemLogLevel;
if ((size_t(end()) < _nextLogLimit) || (size_t(end()) < (size_t(start()) + bigLimit))) {
_nextLogLimit = size_t(start()) + bigLimit;
}
_bigIncrement = bigIncrement;
_allocs2Show = allocs2Show;
checkAndLogBigSegment();
}
void enableThreadSupport() { _mutex.init(); }
private:
void checkAndLogBigSegment() __attribute__((noinline));
typedef BlockT BlockList[BlockCount];
typedef FreeListT<BlockCount/2> FreeList;
OSMemory _osMemory;
size_t _bigSegmentLogLevel;
size_t _bigIncrement;
size_t _allocs2Show;
size_t _unmapSize;
size_t _nextLogLimit;
size_t _partialExtension;
const IHelper &_helper;
Mutex _mutex;
BlockList _blockList;
FreeList _freeList;
FreeList _unMappedList;
};
}
|
