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Make CompactHistoryBlock size variable

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When needed CompactHistoryBlock can now increase from 256kb to a bigger
size.

BUG: 436031
This commit is contained in:
Carlos Alves
2021-04-28 07:54:10 -03:00
parent 562f8e444f
commit 1684952d34
4 changed files with 13 additions and 7 deletions
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12
src/history/compact/CompactHistoryBlock.cpp
View File

@@ -9,13 +9,19 @@
using namespace Konsole;
CompactHistoryBlock::CompactHistoryBlock() :
_blockLength(4096 * 64), // 256kb
_head(static_cast<quint8 *>(mmap(nullptr, _blockLength, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0))),
constexpr size_t BLOCK_LENGTH = 4096 * 64 ; // 256kb
CompactHistoryBlock::CompactHistoryBlock(size_t blockLength) :
_blockLength(BLOCK_LENGTH),
_tail(nullptr),
_blockStart(nullptr),
_allocCount(0)
{
if (blockLength > _blockLength) {
_blockLength = blockLength;
}
_head = static_cast<quint8 *>(mmap(nullptr, _blockLength, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0));
Q_ASSERT(_head != MAP_FAILED);
_tail = _blockStart = _head;
}

2
src/history/compact/CompactHistoryBlock.h
View File

@@ -19,7 +19,7 @@ namespace Konsole
class CompactHistoryBlock
{
public:
CompactHistoryBlock();
CompactHistoryBlock(size_t blockLength = 0);
virtual ~CompactHistoryBlock();

2
src/history/compact/CompactHistoryBlockList.cpp
View File

@@ -19,7 +19,7 @@ CompactHistoryBlockList::CompactHistoryBlockList()
void *CompactHistoryBlockList::allocate(size_t size)
{
if (_blocks.empty() || _blocks.back()->remaining() < size) {
_blocks.push_back(std::make_unique<CompactHistoryBlock>());
_blocks.push_back(std::make_unique<CompactHistoryBlock>(size));
////qDebug() << "new block created, remaining " << block->remaining() << "number of blocks=" << _blocks.size();
}
return _blocks.back()->allocate(size);

4
src/history/compact/CompactHistoryLine.h
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@@ -38,9 +38,9 @@ public:
protected:
CompactHistoryBlockList &_blockListRef;
CharacterFormat *_formatArray;
quint16 _length;
int _length;
uint *_text;
quint16 _formatLength;
int _formatLength;
LineProperty _lineProperty;
};