Petr Onderka has submitted this change and it was merged.
Change subject: Fixed memory issues
......................................................................
Fixed memory issues
- clearing index cache periodically, so that it doesn't grow too much
- fixed memory leaks
- less copying
Change-Id: I1483a2f4855a7faa751dd8ed7ee050b17a0c7204
---
M DumpObjects/DumpObject.h
M Indexes/Index.h
M Indexes/Index.tpp
M Indexes/IndexInnerNode.h
M Indexes/IndexInnerNode.tpp
M Indexes/IndexLeafNode.h
M Indexes/IndexLeafNode.tpp
M Indexes/IndexNode.h
M Indexes/Iterators/IndexNodeIterator.h
M XmlUtils.cpp
10 files changed, 47 insertions(+), 10 deletions(-)
Approvals:
Petr Onderka: Verified; Looks good to me, approved
diff --git a/DumpObjects/DumpObject.h b/DumpObjects/DumpObject.h
index ef21805..3efc910 100644
--- a/DumpObjects/DumpObject.h
+++ b/DumpObjects/DumpObject.h
@@ -16,18 +16,20 @@
virtual void WriteInternal() = 0;
template<typename T>
- void WriteValue(const T value);
+ void WriteValue(const T &value);
public:
template<typename T>
- static void WriteValue(std::ostream &stream, const T value);
+ static void WriteValue(std::ostream &stream, const T &value);
template<typename T>
static void ReadValue(std::istream &stream, T &value);
template<typename T>
- static std::uint32_t ValueSize(const T value);
+ static std::uint32_t ValueSize(const T &value);
virtual std::uint32_t NewLength() = 0;
+
+ virtual ~DumpObjectBase() {}
};
class DumpObject : public DumpObjectBase
@@ -47,13 +49,13 @@
};
template<typename T>
-void DumpObjectBase::WriteValue(const T value)
+void DumpObjectBase::WriteValue(const T &value)
{
WriteValue(*stream, value);
}
template<typename T>
-void DumpObjectBase::WriteValue(std::ostream &stream, const T value)
+void DumpObjectBase::WriteValue(std::ostream &stream, const T &value)
{
DumpTraits<T>::Write(stream, value);
}
@@ -65,7 +67,7 @@
}
template<typename T>
-uint32_t DumpObjectBase::ValueSize(const T value)
+uint32_t DumpObjectBase::ValueSize(const T &value)
{
return DumpTraits<T>::DumpSize(value);
}
\ No newline at end of file
diff --git a/Indexes/Index.h b/Indexes/Index.h
index 24e822c..ac77ddb 100644
--- a/Indexes/Index.h
+++ b/Indexes/Index.h
@@ -17,6 +17,8 @@
std::weak_ptr<WritableDump> dump;
std::weak_ptr<Offset> fileHeaderOffset;
+ int recentChanges;
+
void AfterAdd();
public:
Index(std::weak_ptr<WritableDump> dump, std::weak_ptr<Offset>
fileHeaderOffset, bool delaySave = false);
diff --git a/Indexes/Index.tpp b/Indexes/Index.tpp
index 294d755..7ba38d5 100644
--- a/Indexes/Index.tpp
+++ b/Indexes/Index.tpp
@@ -7,7 +7,7 @@
template<typename TKey, typename TValue>
Index<TKey, TValue>::Index(std::weak_ptr<WritableDump> dump,
std::weak_ptr<Offset> fileHeaderOffset, bool delaySave)
- : dump(dump), fileHeaderOffset(fileHeaderOffset)
+ : dump(dump), fileHeaderOffset(fileHeaderOffset), recentChanges(0)
{
auto offset = fileHeaderOffset.lock();
@@ -63,6 +63,14 @@
rootNodeUnsaved = false;
}
+
+ recentChanges++;
+
+ if (recentChanges >= 100000)
+ {
+ rootNode->ClearCached();
+ recentChanges = 0;
+ }
}
template<typename TKey, typename TValue>
diff --git a/Indexes/IndexInnerNode.h b/Indexes/IndexInnerNode.h
index 3b039bc..5ccc1e1 100644
--- a/Indexes/IndexInnerNode.h
+++ b/Indexes/IndexInnerNode.h
@@ -41,6 +41,8 @@
virtual std::uint32_t RealLength() override;
virtual SplitResult Split() override;
+ virtual void ClearCached() override;
+
virtual std::unique_ptr<IndexNodeIterator<TKey, TValue>> begin() override;
virtual std::unique_ptr<IndexNodeIterator<TKey, TValue>> end() override;
};
diff --git a/Indexes/IndexInnerNode.tpp b/Indexes/IndexInnerNode.tpp
index b6607c1..0890b2a 100644
--- a/Indexes/IndexInnerNode.tpp
+++ b/Indexes/IndexInnerNode.tpp
@@ -152,6 +152,8 @@
template<typename TKey, typename TValue>
void IndexInnerNode<TKey, TValue>::Write()
{
+ // TODO: don't do anything when there are no changes
+
IndexNode<TKey, TValue>::Write();
for (auto &cachedChild : cachedChildren)
@@ -217,6 +219,17 @@
}
template<typename TKey, typename TValue>
+void IndexInnerNode<TKey, TValue>::ClearCached()
+{
+ Write();
+
+ for (unsigned i = 0; i < cachedChildren.size(); i++)
+ {
+ cachedChildren.at(i) = nullptr;
+ }
+}
+
+template<typename TKey, typename TValue>
std::unique_ptr<IndexNodeIterator<TKey, TValue>> IndexInnerNode<TKey,
TValue>::begin()
{
return std::unique_ptr<IndexNodeIterator<TKey, TValue>>(new
IndexInnerIterator<TKey, TValue>(this, true));
diff --git a/Indexes/IndexLeafNode.h b/Indexes/IndexLeafNode.h
index 1598488..ad069ac 100644
--- a/Indexes/IndexLeafNode.h
+++ b/Indexes/IndexLeafNode.h
@@ -32,6 +32,8 @@
virtual std::uint32_t RealLength() override;
virtual SplitResult Split() override;
+ virtual void ClearCached() override;
+
virtual unique_ptr<IndexNodeIterator<TKey, TValue>> begin() override;
virtual unique_ptr<IndexNodeIterator<TKey, TValue>> end() override;
};
diff --git a/Indexes/IndexLeafNode.tpp b/Indexes/IndexLeafNode.tpp
index 6f9cb22..2f373ed 100644
--- a/Indexes/IndexLeafNode.tpp
+++ b/Indexes/IndexLeafNode.tpp
@@ -115,6 +115,10 @@
}
template<typename TKey, typename TValue>
+void IndexLeafNode<TKey, TValue>::ClearCached()
+{}
+
+template<typename TKey, typename TValue>
std::unique_ptr<IndexNodeIterator<TKey, TValue>> IndexLeafNode<TKey,
TValue>::begin()
{
return std::unique_ptr<IndexNodeIterator<TKey, TValue>>(new
IndexLeafIterator<TKey, TValue>(indexMap.begin()));
diff --git a/Indexes/IndexNode.h b/Indexes/IndexNode.h
index 366c395..ce2bec5 100644
--- a/Indexes/IndexNode.h
+++ b/Indexes/IndexNode.h
@@ -54,6 +54,8 @@
virtual std::uint32_t RealLength() = 0;
virtual SplitResult Split() = 0;
+ virtual void ClearCached() = 0;
+
virtual unique_ptr<IndexNodeIterator<TKey, TValue>> begin() = 0;
virtual unique_ptr<IndexNodeIterator<TKey, TValue>> end() = 0;
};
diff --git a/Indexes/Iterators/IndexNodeIterator.h
b/Indexes/Iterators/IndexNodeIterator.h
index 20dd85e..6249e02 100644
--- a/Indexes/Iterators/IndexNodeIterator.h
+++ b/Indexes/Iterators/IndexNodeIterator.h
@@ -12,4 +12,6 @@
virtual bool Equals(const IndexNodeIterator *other) const = 0;
virtual std::unique_ptr<IndexNodeIterator> Clone() const = 0;
+
+ virtual ~IndexNodeIterator() {};
};
\ No newline at end of file
diff --git a/XmlUtils.cpp b/XmlUtils.cpp
index 8d613af..a306836 100644
--- a/XmlUtils.cpp
+++ b/XmlUtils.cpp
@@ -66,14 +66,14 @@
const size_t BUFFER_SIZE = 256;
- char* buffer = new char[BUFFER_SIZE];
+ std::string buffer(BUFFER_SIZE, '\0');
int read;
do
{
- read = elem.ReadData(buffer, BUFFER_SIZE - 1);
- stream.write(buffer, read);
+ read = elem.ReadData(&buffer.at(0), BUFFER_SIZE - 1);
+ stream.write(buffer.data(), read);
} while (read == BUFFER_SIZE);
return unescape(stream.str());
--
To view, visit https://gerrit.wikimedia.org/r/83783
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings
Gerrit-MessageType: merged
Gerrit-Change-Id: I1483a2f4855a7faa751dd8ed7ee050b17a0c7204
Gerrit-PatchSet: 1
Gerrit-Project: operations/dumps/incremental
Gerrit-Branch: gsoc
Gerrit-Owner: Petr Onderka <gsv...@gmail.com>
Gerrit-Reviewer: Petr Onderka <gsv...@gmail.com>
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