void ChunkManagerTargeter::noteStaleResponse( const ShardEndpoint& endpoint,
const BSONObj& staleInfo ) {
dassert( !_needsTargetingRefresh );
ChunkVersion remoteShardVersion;
if ( staleInfo["vWanted"].eoo() ) {
// If we don't have a vWanted sent, assume the version is higher than our current
// version.
remoteShardVersion = getShardVersion( endpoint.shardName, _manager, _primary );
remoteShardVersion.incMajor();
}
else {
remoteShardVersion = ChunkVersion::fromBSON( staleInfo, "vWanted" );
}
ShardVersionMap::iterator it = _remoteShardVersions.find( endpoint.shardName );
if ( it == _remoteShardVersions.end() ) {
_remoteShardVersions.insert( make_pair( endpoint.shardName, remoteShardVersion ) );
}
else {
ChunkVersion& previouslyNotedVersion = it->second;
if ( previouslyNotedVersion.hasCompatibleEpoch( remoteShardVersion )) {
if ( previouslyNotedVersion.isOlderThan( remoteShardVersion )) {
remoteShardVersion.cloneTo( &previouslyNotedVersion );
}
}
else {
// Epoch changed midway while applying the batch so set the version to
// something unique and non-existent to force a reload when
// refreshIsNeeded is called.
ChunkVersion::IGNORED().cloneTo( &previouslyNotedVersion );
}
}
}
void BatchedInsertRequest::setShardVersion(const ChunkVersion& shardVersion) {
auto_ptr<ChunkVersion> temp(new ChunkVersion);
shardVersion.cloneTo(temp.get());
_shardVersion.reset(temp.release());
}