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//
// Copyright 2012 Josh Blum
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with io_sig program. If not, see <http://www.gnu.org/licenses/>.
#include <gnuradio/sbuffer.hpp>
#include <numanuma.hpp>
#include <boost/bind.hpp>
using namespace gnuradio;
void gnuradio::sbuffer_handle_deref(SBufferImpl *impl)
{
//call the deleter if possible
boost::shared_ptr<SBufferDeleter> token_deleter = impl->config.token.lock();
if (token_deleter)
{
SBuffer buff;
buff.reset(impl);
(*token_deleter)(buff);
}
else if (impl->config.deleter)
{
SBuffer buff;
buff.reset(impl);
impl->config.deleter(buff);
impl->config.deleter = SBufferDeleter(); //reset deleter, so we dont double delete
}
else
{
delete impl; //its really dead now
}
}
SBufferConfig::SBufferConfig(void)
{
memory = NULL;
length = 0;
}
static void numanuma_mem_deleter(SBuffer &, numanuma::mem *m)
{
delete m;
}
static void default_allocator_deleter(SBuffer &, char *m)
{
delete m;
}
static void default_allocator(SBufferConfig &config)
{
if (config.affinity == Affinity())
{
char *m = new char[config.length + GRAS_MAX_ALIGNMENT - 1];
size_t x = size_t(m) + GRAS_MAX_ALIGNMENT - 1;
x -= x % GRAS_MAX_ALIGNMENT;
config.memory = (void *)x;
config.deleter = boost::bind(&default_allocator_deleter, _1, m);
}
else
{
numanuma::mem *m = numanuma::mem::make(config.affinity, config.length);
config.memory = m->get();
config.length = m->len();
config.deleter = boost::bind(&numanuma_mem_deleter, _1, m);
}
}
SBuffer::SBuffer(const SBufferConfig &config):
offset(0),
length(0)
{
this->reset(new SBufferImpl(config));
if (config.memory == NULL)
{
default_allocator((*this)->config);
}
this->length = this->get_actual_length();
}
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