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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed 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 "vom/l3_binding.hpp"
#include "vom/l3_binding_cmds.hpp"
namespace VOM {
singular_db<l3_binding::key_type_t, l3_binding> l3_binding::m_db;
l3_binding::event_handler l3_binding::m_evh;
/**
* Construct a new object matching the desried state
*/
l3_binding::l3_binding(const interface& itf, const route::prefix_t& pfx)
: m_itf(itf.singular())
, m_pfx(pfx)
, m_binding(true, rc_t::NOOP)
{
}
l3_binding::l3_binding(const l3_binding& o)
: m_itf(o.m_itf)
, m_pfx(o.m_pfx)
, m_binding(o.m_binding)
{
}
l3_binding::~l3_binding()
{
sweep();
// not in the DB anymore.
m_db.release(make_pair(m_itf->key(), m_pfx), this);
}
void
l3_binding::sweep()
{
if (m_binding) {
HW::enqueue(
new l3_binding_cmds::unbind_cmd(m_binding, m_itf->handle(), m_pfx));
}
HW::write();
}
void
l3_binding::replay()
{
if (m_binding) {
HW::enqueue(
new l3_binding_cmds::bind_cmd(m_binding, m_itf->handle(), m_pfx));
}
}
const route::prefix_t&
l3_binding::prefix() const
{
return (m_pfx);
}
const interface&
l3_binding::itf() const
{
return (*m_itf);
}
l3_binding::const_iterator_t
l3_binding::cbegin()
{
return m_db.cbegin();
}
l3_binding::const_iterator_t
l3_binding::cend()
{
return m_db.cend();
}
std::string
l3_binding::to_string() const
{
std::ostringstream s;
s << "L3-config:[" << m_itf->to_string() << " prefix:" << m_pfx.to_string()
<< " " << m_binding.to_string() << "]";
return (s.str());
}
void
l3_binding::update(const l3_binding& desired)
{
/*
* no updates for the binding. chaning the interface or the prefix is a change
* to the
* key, hence a new object
*/
if (!m_binding) {
HW::enqueue(
new l3_binding_cmds::bind_cmd(m_binding, m_itf->handle(), m_pfx));
}
}
std::shared_ptr<l3_binding>
l3_binding::find_or_add(const l3_binding& temp)
{
return (m_db.find_or_add(make_pair(temp.m_itf->key(), temp.m_pfx), temp));
}
std::shared_ptr<l3_binding>
l3_binding::singular() const
{
return find_or_add(*this);
}
void
l3_binding::dump(std::ostream& os)
{
m_db.dump(os);
}
std::ostream&
operator<<(std::ostream& os, const l3_binding::key_type_t& key)
{
os << "[" << key.first << ", " << key.second << "]";
return (os);
}
std::deque<std::shared_ptr<l3_binding>>
l3_binding::find(const interface& i)
{
/*
* Loop throught the entire map looking for matching interface.
* not the most efficient algorithm, but it will do for now. The
* number of L3 configs is low and this is only called during bootup
*/
std::deque<std::shared_ptr<l3_binding>> l3s;
auto it = m_db.cbegin();
while (it != m_db.cend()) {
/*
* The key in the DB is a pair of the interface's name and prefix.
* If the keys match, save the L3-config
*/
auto key = it->first;
if (i.key() == key.first) {
l3s.push_back(it->second.lock());
}
++it;
}
return (l3s);
}
l3_binding::event_handler::event_handler()
{
OM::register_listener(this);
inspect::register_handler({ "l3" }, "L3 bindings", this);
}
void
l3_binding::event_handler::handle_replay()
{
m_db.replay();
}
void
l3_binding::event_handler::handle_populate(const client_db::key_t& key)
{
/**
* This is done while populating the interfaces
*/
}
dependency_t
l3_binding::event_handler::order() const
{
return (dependency_t::BINDING);
}
void
l3_binding::event_handler::show(std::ostream& os)
{
m_db.dump(os);
}
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "mozilla")
* End:
*/
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