/**
* removes this connection from the connections map the datagram channel still sticks around in
* case it needs to be reused
*/
static void removeConnection(RDPConnection con) {
lock.lock();
try {
if (Log.loggingNet) Log.net("RDPServer.removeConnection: removing con " + con);
con.setState(RDPConnection.CLOSED);
DatagramChannel dc = con.getDatagramChannel();
// first we get the set of connections attached to the given dc
Map<ConnectionInfo, RDPConnection> dcConMap = allConMap.get(dc);
if (dcConMap == null) {
throw new MVRuntimeException("RDPServer.removeConnection: cannot find dc");
}
int localPort = con.getLocalPort();
int remotePort = con.getRemotePort();
InetAddress remoteAddr = con.getRemoteAddr();
ConnectionInfo conInfo = new ConnectionInfo(remoteAddr, remotePort, localPort);
Object rv = dcConMap.remove(conInfo);
if (rv == null) {
throw new MVRuntimeException("RDPServer.removeConnection: could not find the connection");
}
// close the datagramchannel if needed
// conditions: no other connections on this datagramchannel
// no socket listening on this datagramchannel
if (dcConMap.isEmpty()) {
Log.net("RDPServer.removeConnection: no other connections for this datagramchannel (port)");
// there are no more connections on this datagram channel
// check if there is a serversocket listening
if (getRDPSocket(dc) == null) {
Log.net("RDPServer.removeConnection: no socket listening on this port - closing");
// no socket either, close the datagramchannel
dc.socket().close();
channelMap.remove(localPort);
Log.net("RDPServer.removeConnection: closed and removed datagramchannel/socket");
} else {
Log.net("RDPServer.removeConnection: there is a socket listening on this port");
}
} else {
Log.net("RDPServer.removeConnection: there are other connections on this port");
}
} finally {
lock.unlock();
}
}
/**
* Remove particular entry from the trash directory or subdirectory.
*
* @param parentId Parent ID.
* @param id Entry id.
* @throws IgniteCheckedException If delete failed for some reason.
*/
private void deleteDirectory(IgniteUuid parentId, IgniteUuid id) throws IgniteCheckedException {
assert parentId != null;
assert id != null;
while (true) {
IgfsFileInfo info = meta.info(id);
if (info != null) {
assert info.isDirectory();
Map<String, IgfsListingEntry> listing = info.listing();
if (listing.isEmpty()) return; // Directory is empty.
Map<String, IgfsListingEntry> delListing;
if (listing.size() <= MAX_DELETE_BATCH) delListing = listing;
else {
delListing = new HashMap<>(MAX_DELETE_BATCH, 1.0f);
int i = 0;
for (Map.Entry<String, IgfsListingEntry> entry : listing.entrySet()) {
delListing.put(entry.getKey(), entry.getValue());
if (++i == MAX_DELETE_BATCH) break;
}
}
GridCompoundFuture<Object, ?> fut = new GridCompoundFuture<>();
// Delegate to child folders.
for (IgfsListingEntry entry : delListing.values()) {
if (!cancelled) {
if (entry.isDirectory()) deleteDirectory(id, entry.fileId());
else {
IgfsFileInfo fileInfo = meta.info(entry.fileId());
if (fileInfo != null) {
assert fileInfo.isFile();
fut.add(data.delete(fileInfo));
}
}
} else return;
}
fut.markInitialized();
// Wait for data cache to delete values before clearing meta cache.
try {
fut.get();
} catch (IgniteFutureCancelledCheckedException ignore) {
// This future can be cancelled only due to IGFS shutdown.
cancelled = true;
return;
}
// Actual delete of folder content.
Collection<IgniteUuid> delIds = meta.delete(id, delListing);
if (delListing == listing && delListing.size() == delIds.size())
break; // All entries were deleted.
} else break; // Entry was deleted concurrently.
}
}