source: source/ariba/utility/types/LinkID.cpp@ 9684

// [License]
// The Ariba-Underlay Copyright
//
// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
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// UniversitÀt Karlsruhe (TH)
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// [License]

#include "LinkID.h"

#include <boost/unordered_map.hpp>

namespace ariba {
namespace utility {

/// the unspecified link id
const LinkID LinkID::UNSPECIFIED;

const char* UNSPECIFIED_LINK    = "<LINKID-UNSPECIFIED>";
const char* UNKNOWN_LINK                = "<LINKID-UNKNOWN>";
const char* NULL_INFO                   = "<NO-INFO-AVAILABLE>";

boost::unordered_map<uint16_t, const char*> link_ids;

bool LinkID::isValid( const LinkID& id ) {
        return link_ids.count(id.local_id)!=0;
}

const char* LinkID::getInfo( const LinkID& id ) {
        if (!id.valid())
                return UNSPECIFIED_LINK;
        if ( link_ids.count(id.local_id) == 0 )
                return UNKNOWN_LINK;
        const char* info = link_ids.find( id.local_id )->second;
        if (info == NULL)
                return NULL_INFO;
        return info;
}

/// create a new locally unique link id
LinkID LinkID::create( const char* info ) {
        assert( link_ids.size() != 0xFFFE );
        uint16_t id;
        do {
                id = rand() & 0xFFFF;
        } while (id == 0 || link_ids.count(id) != 0);
        link_ids.insert( std::make_pair(id, info) );
        return LinkID(id);
}

/// free a locally unique link id
void LinkID::destroy( const LinkID& id ) {
        link_ids.erase(id.local_id);
}

std::ostream& operator<<(std::ostream& s, const LinkID& id ) {
        return s << id.toString();
}

}} // spovnet, common