metacall/mc_buffer.cpp

125 lines
3.0 KiB
C++

//
// Copyright (c) 2011 Alex Yatskov
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//
#include "metacall.hpp"
namespace metacall {
//
// Buffer
//
Buffer::Buffer(const void* data, int count) {
setData(data, count);
}
Buffer::Buffer() {
}
void Buffer::addToBack(const void* data, int bytes) {
m_data.insert(
m_data.end(),
static_cast<const byte*>(data),
static_cast<const byte*>(data) + bytes
);
}
void Buffer::addToFront(const void* data, int bytes) {
m_data.insert(
m_data.begin(),
static_cast<const byte*>(data),
static_cast<const byte*>(data) + bytes
);
}
int Buffer::removeFromFront(void* data, int bytes) {
bytes = std::min(static_cast<size_t>(bytes), m_data.size());
if (data != NULL) {
memcpy(data, &m_data[0], bytes);
}
m_data.erase(m_data.begin(), m_data.begin() + bytes);
return bytes;
}
int Buffer::removeFromBack(void* data, int bytes) {
bytes = std::min(static_cast<size_t>(bytes), m_data.size());
if (data != NULL) {
memcpy(data, &m_data[m_data.size() - bytes], bytes);
}
m_data.erase(m_data.end() - bytes, m_data.end());
return bytes;
}
void Buffer::clear() {
m_data.clear();
}
void Buffer::setData(const void* data, int bytes) {
m_data.assign(
static_cast<const byte*>(data),
static_cast<const byte*>(data) + bytes
);
}
const void* Buffer::data() const {
return bytes() == 0 ? NULL : &m_data[0];
}
void* Buffer::data() {
return bytes() == 0 ? NULL : &m_data[0];
}
int Buffer::bytes() const {
return m_data.size();
}
bool Buffer::serialize(Serializer* serializer) const {
serializer->write(bytes());
serializer->writeRaw(data(), bytes());
return true;
}
bool Buffer::deserialize(Deserializer* deserializer) {
int count = 0;
if (!deserializer->read(&count)) {
return false;
}
const byte* const data = deserializer->readRaw(count);
if (data == NULL) {
return false;
}
setData(data, count);
return true;
}
}