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DataOutput.cpp
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248 lines (210 loc) · 7.24 KB
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <vector>
#include <geode/DataOutput.hpp>
#include "CacheImpl.hpp"
#include "CacheRegionHelper.hpp"
#include "SerializationRegistry.hpp"
#include "util/JavaModifiedUtf8.hpp"
#include "util/Log.hpp"
#include "util/string.hpp"
namespace apache {
namespace geode {
namespace client {
static std::recursive_mutex globalBigBufferMutex;
size_t DataOutput::m_highWaterMark = 50 * 1024 * 1024;
size_t DataOutput::m_lowWaterMark = 8192;
/** This represents a allocation in this thread local pool. */
class BufferDesc {
public:
uint8_t* m_buf;
size_t m_size;
BufferDesc(uint8_t* buf, size_t size) : m_buf(buf), m_size(size) {}
BufferDesc() : m_buf(nullptr), m_size(0) {}
~BufferDesc() {}
BufferDesc& operator=(const BufferDesc& other) {
if (this != &other) {
m_buf = other.m_buf;
m_size = other.m_size;
}
return *this;
}
BufferDesc(const BufferDesc& other)
: m_buf(other.m_buf), m_size(other.m_size) {}
};
/** Thread local pool of buffers for DataOutput objects. */
class TSSDataOutput {
private:
std::vector<BufferDesc> m_buffers;
public:
TSSDataOutput();
~TSSDataOutput();
uint8_t* getBuffer(size_t* size) {
if (!m_buffers.empty()) {
BufferDesc desc = m_buffers.back();
m_buffers.pop_back();
*size = desc.m_size;
return desc.m_buf;
} else {
uint8_t* buf;
*size = 8192;
buf = static_cast<uint8_t*>(std::malloc(8192 * sizeof(uint8_t)));
if (buf == nullptr) {
throw OutOfMemoryException("Out of Memory while resizing buffer");
}
return buf;
}
}
void poolBuffer(uint8_t* buf, size_t size) {
BufferDesc desc(buf, size);
m_buffers.push_back(desc);
}
static thread_local TSSDataOutput threadLocalBufferPool;
};
TSSDataOutput::TSSDataOutput() : m_buffers() { m_buffers.reserve(10); }
TSSDataOutput::~TSSDataOutput() {
while (!m_buffers.empty()) {
BufferDesc desc = m_buffers.back();
m_buffers.pop_back();
std::free(desc.m_buf);
}
}
thread_local TSSDataOutput TSSDataOutput::threadLocalBufferPool;
DataOutput::DataOutput(const CacheImpl* cache, Pool* pool)
: m_size(0), m_haveBigBuffer(false), m_cache(cache), m_pool(pool) {
m_bytes.reset(DataOutput::checkoutBuffer(&m_size));
m_buf = m_bytes.get();
}
uint8_t* DataOutput::checkoutBuffer(size_t* size) {
return TSSDataOutput::threadLocalBufferPool.getBuffer(size);
}
void DataOutput::checkinBuffer(uint8_t* buffer, size_t size) {
TSSDataOutput::threadLocalBufferPool.poolBuffer(buffer, size);
}
void DataOutput::writeObjectInternal(const std::shared_ptr<Serializable>& ptr,
bool isDelta) {
getSerializationRegistry().serialize(ptr, *this, isDelta);
}
void DataOutput::acquireLock() { globalBigBufferMutex.lock(); }
void DataOutput::releaseLock() { globalBigBufferMutex.unlock(); }
const SerializationRegistry& DataOutput::getSerializationRegistry() const {
return *m_cache->getSerializationRegistry();
}
Cache* DataOutput::getCache() const { return m_cache->getCache(); }
template <class _Traits, class _Allocator>
void DataOutput::writeJavaModifiedUtf8(
const std::basic_string<char, _Traits, _Allocator>& value) {
/*
* OPTIMIZE convert from UTF-8 to CESU-8/Java Modified UTF-8 directly
* http://www.unicode.org/reports/tr26/
*/
if (value.empty()) {
writeInt(static_cast<uint16_t>(0));
} else {
writeJavaModifiedUtf8(to_utf16(value));
}
}
template APACHE_GEODE_EXPLICIT_TEMPLATE_EXPORT void
DataOutput::writeJavaModifiedUtf8(const std::string&);
template <class _Traits, class _Allocator>
void DataOutput::writeJavaModifiedUtf8(
const std::basic_string<char32_t, _Traits, _Allocator>& value) {
/*
* OPTIMIZE convert from UCS-4 to CESU-8/Java Modified UTF-8 directly
* http://www.unicode.org/reports/tr26/
*/
if (value.empty()) {
writeInt(static_cast<uint16_t>(0));
} else {
writeJavaModifiedUtf8(to_utf16(value));
}
}
template APACHE_GEODE_EXPLICIT_TEMPLATE_EXPORT void
DataOutput::writeJavaModifiedUtf8(const std::u32string&);
void DataOutput::writeJavaModifiedUtf8(const char32_t* data, size_t len) {
// TODO string optimize from UCS-4 to jmutf8
if (0 == len) {
writeInt(static_cast<uint16_t>(0));
} else {
writeJavaModifiedUtf8(to_utf16(data, len));
}
}
size_t DataOutput::getJavaModifiedUtf8EncodedLength(const char16_t* data,
size_t length) {
return internal::JavaModifiedUtf8::encodedLength(data, length);
}
template <class _Traits, class _Allocator>
void DataOutput::writeUtf16Huge(
const std::basic_string<char, _Traits, _Allocator>& value) {
// TODO string OPTIMIZE convert from UTF-8 to UTF-16 directly
if (value.empty()) {
writeInt(static_cast<uint16_t>(0));
} else {
writeUtf16Huge(to_utf16(value));
}
}
template APACHE_GEODE_EXPLICIT_TEMPLATE_EXPORT void DataOutput::writeUtf16Huge(
const std::string&);
template <class _Traits, class _Allocator>
void DataOutput::writeUtf16Huge(
const std::basic_string<char32_t, _Traits, _Allocator>& value) {
// TODO string OPTIMIZE convert from UCS-4 to UTF-16 directly
if (value.empty()) {
writeInt(static_cast<uint16_t>(0));
} else {
writeUtf16Huge(to_utf16(value));
}
}
template APACHE_GEODE_EXPLICIT_TEMPLATE_EXPORT void DataOutput::writeUtf16Huge(
const std::u32string&);
void DataOutput::writeUtf16Huge(const char32_t* data, size_t len) {
// TODO string optimize from UCS-4 to UTF-16
if (0 == len) {
writeInt(static_cast<uint16_t>(0));
} else {
writeUtf16Huge(to_utf16(data, len));
}
}
template <class _Traits, class _Allocator>
void DataOutput::writeUtf16(
const std::basic_string<char, _Traits, _Allocator>& value) {
// TODO string OPTIMIZE convert from UTF-8 to UTF-16 directly
if (!value.empty()) {
writeUtf16(to_utf16(value));
}
}
template APACHE_GEODE_EXPLICIT_TEMPLATE_EXPORT void DataOutput::writeUtf16(
const std::string&);
template <class _Traits, class _Allocator>
void DataOutput::writeUtf16(
const std::basic_string<char32_t, _Traits, _Allocator>& value) {
// TODO string OPTIMIZE convert from UCS-4 to UTF-16 directly
if (!value.empty()) {
writeUtf16(to_utf16(value));
}
}
template APACHE_GEODE_EXPLICIT_TEMPLATE_EXPORT void DataOutput::writeUtf16(
const std::u32string&);
void DataOutput::writeUtf16(const char32_t* data, size_t len) {
// TODO string optimize from UCS-4 to UTF-16
if (len > 0) {
writeUtf16(to_utf16(data, len));
}
}
} // namespace client
} // namespace geode
} // namespace apache