hostandport.h

/*    Copyright 2009 10gen Inc.
 *
 *    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.
 */

#pragma once

#include <iosfwd>
#include <string>

#include "mongo/bson/util/builder.h"
#include "mongo/platform/hash_namespace.h"

namespace mongo {
class Status;
class StringData;
template <typename T>
class StatusWith;

struct MONGO_CLIENT_API HostAndPort {
    static StatusWith<HostAndPort> MONGO_CLIENT_FUNC parse(const StringData& text);

    HostAndPort();

    explicit HostAndPort(const StringData& text);

    HostAndPort(const std::string& h, int p);

    Status initialize(const StringData& s);

    bool operator<(const HostAndPort& r) const;
    bool operator==(const HostAndPort& r) const;
    bool operator!=(const HostAndPort& r) const {
        return !(*this == r);
    }

    bool isLocalHost() const;

    std::string toString() const;

    void append(StringBuilder& ss) const;

    bool empty() const;

    const std::string& host() const {
        return _host;
    }
    int port() const;

    bool hasPort() const {
        return _port >= 0;
    }

private:
    std::string _host;
    int _port;  // -1 indicates unspecified
};

MONGO_CLIENT_API std::ostream& MONGO_CLIENT_FUNC
operator<<(std::ostream& os, const HostAndPort& hp);

}  // namespace mongo

MONGO_HASH_NAMESPACE_START

template <>
struct hash<mongo::HostAndPort> {
    size_t operator()(const mongo::HostAndPort& host) const;
};

MONGO_HASH_NAMESPACE_END