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/*
Copyright (C) 2011
Her Majesty the Queen in Right of Canada (Communications Research
Center Canada)
Copyright (C) 2016
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
*/
/*
This file is part of ODR-DabMod.
ODR-DabMod is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
ODR-DabMod is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ODR-DabMod. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Buffer.h"
#include "PcDebug.h"
#include <stdlib.h>
#include <string.h>
Buffer::Buffer(size_t len, const void *data)
{
PDEBUG("Buffer::Buffer(%zu, %p)\n", len, data);
this->len = 0;
this->size = 0;
this->data = NULL;
setData(data, len);
}
Buffer::Buffer(const std::vector<uint8_t> &vec)
{
PDEBUG("Buffer::Buffer(vector [%zu])\n", vec.size());
this->len = 0;
this->size = 0;
this->data = NULL;
setData(vec.data(), vec.size());
}
Buffer::~Buffer()
{
PDEBUG("Buffer::~Buffer() len=%zu, data=%p\n", len, data);
free(data);
}
Buffer &Buffer::operator=(const Buffer ©)
{
setData(copy.data, copy.len);
return *this;
}
Buffer &Buffer::operator=(const std::vector<uint8_t> ©)
{
setData(copy.data(), copy.size());
return *this;
}
Buffer &Buffer::operator+=(const Buffer ©)
{
appendData(copy.data, copy.len);
return *this;
}
void Buffer::setLength(size_t len)
{
if (len > size) {
void *tmp = data;
/* Align to 32-byte boundary for AVX. */
const int ret = posix_memalign(&data, 32, len);
if (ret != 0) {
throw std::runtime_error("memory allocation failed: " + std::to_string(ret));
}
if (tmp != NULL) {
memcpy(data, tmp, this->len);
free(tmp);
}
size = len;
}
this->len = len;
}
void Buffer::setData(const void *data, size_t len)
{
setLength(0);
appendData(data, len);
}
void Buffer::appendData(const void *data, size_t len)
{
size_t offset = this->len;
setLength(this->len + len);
if (data != NULL) {
memcpy((char*)this->data + offset, data, len);
}
}
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