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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kNetwork
#include "mongo/platform/basic.h"
#include "mongo/db/wire_version.h"
#include "mongo/base/error_codes.h"
#include "mongo/logv2/log.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/static_immortal.h"
#include "mongo/util/thread_safety_context.h"
namespace mongo {
WireSpec& WireSpec::instance() {
static StaticImmortal<WireSpec> instance;
return *instance;
}
void WireSpec::appendInternalClientWireVersion(WireVersionInfo wireVersionInfo,
BSONObjBuilder* builder) {
BSONObjBuilder subBuilder(builder->subobjStart("internalClient"));
WireVersionInfo::appendToBSON(wireVersionInfo, &subBuilder);
}
BSONObj specToBSON(const WireSpec::Specification& spec) {
BSONObjBuilder bob;
WireSpec::Specification::appendToBSON(spec, &bob);
return bob.obj();
}
void WireSpec::initialize(Specification spec) {
invariant(ThreadSafetyContext::getThreadSafetyContext()->isSingleThreaded());
fassert(ErrorCodes::AlreadyInitialized, !isInitialized());
BSONObj newSpec = specToBSON(spec);
_spec = std::make_shared<Specification>(std::move(spec));
LOGV2(4915701, "Initialized wire specification", "spec"_attr = newSpec);
}
void WireSpec::reset(Specification spec) {
BSONObj oldSpec, newSpec;
{
stdx::lock_guard<Latch> lk(_mutex);
internalAssert(
ErrorCodes::NotYetInitialized, "WireSpec is not yet initialized", isInitialized());
oldSpec = specToBSON(*_spec.get());
_spec = std::make_shared<Specification>(std::move(spec));
newSpec = specToBSON(*_spec.get());
}
LOGV2(
4915702, "Updated wire specification", "oldSpec"_attr = oldSpec, "newSpec"_attr = newSpec);
}
std::shared_ptr<const WireSpec::Specification> WireSpec::get() const {
stdx::lock_guard<Latch> lk(_mutex);
fassert(ErrorCodes::NotYetInitialized, isInitialized());
return _spec;
}
} // namespace mongo
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