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https://github.com/msgpack/msgpack-c.git
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48e0274505
git-svn-id: file:///Users/frsyuki/project/msgpack-git/svn/x@64 5a5092ae-2292-43ba-b2d5-dcab9c1a2731
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
//
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// MessagePack for C++ memory pool
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//
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// Copyright (C) 2008 FURUHASHI Sadayuki
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "msgpack/zone.hpp"
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namespace msgpack {
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// FIXME custom allocator?
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void zone::expand_chunk()
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{
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cell_t* chunk = (cell_t*)malloc(sizeof(cell_t)*ZONE_CHUNK_SIZE);
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if(!chunk) { throw std::bad_alloc(); }
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try {
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m_pool.push_back(chunk);
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} catch (...) {
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free(chunk);
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throw;
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}
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}
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void zone::clear()
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{
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if(!m_pool.empty()) {
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size_t base_size = m_used / ZONE_CHUNK_SIZE;
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size_t extend_size = m_used % ZONE_CHUNK_SIZE;
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for(size_t b=0; b < base_size; ++b) {
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cell_t* c(m_pool[b]);
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for(size_t e=0; e < ZONE_CHUNK_SIZE; ++e) {
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reinterpret_cast<object_class*>(c[e].data)->~object_class();
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}
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}
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cell_t* c(m_pool.back());
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for(size_t e=0; e < extend_size; ++e) {
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reinterpret_cast<object_class*>(c[e].data)->~object_class();
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}
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for(pool_t::iterator it(m_pool.begin()), it_end(m_pool.end());
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it != it_end;
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++it) {
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free(*it);
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}
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m_pool.clear();
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}
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m_used = 0;
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for(user_finalizer_t::reverse_iterator it(m_user_finalizer.rbegin()),
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it_end(m_user_finalizer.rend());
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it != it_end;
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++it) {
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it->call();
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}
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m_user_finalizer.clear();
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}
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} // namespace msgpack
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