package io.fd.vpp.jvpp;
import static io.fd.vpp.jvpp.NativeLibraryLoader.loadLibrary;
+import static java.lang.String.format;
import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
*/
public final class VppJNIConnection implements VppConnection {
private static final Logger LOG = Logger.getLogger(VppJNIConnection.class.getName());
+ private static final String DEFAULT_SHM_PREFIX = "/vpe-api";
static {
final String libName = "libjvpp_registry.so";
try {
loadLibrary(libName, VppJNIConnection.class);
} catch (IOException e) {
- LOG.log(Level.SEVERE, String.format("Can't find vpp jni library: %s", libName), e);
+ LOG.log(Level.SEVERE, format("Can't find vpp jni library: %s", libName), e);
throw new ExceptionInInitializerError(e);
}
}
private ConnectionInfo connectionInfo;
private final String clientName;
+ private final String shmPrefix;
private volatile boolean disconnected = false;
/**
*/
public VppJNIConnection(final String clientName) {
this.clientName = Objects.requireNonNull(clientName, "Null clientName");
+ this.shmPrefix = DEFAULT_SHM_PREFIX;
+ }
+
+ public VppJNIConnection(final String clientName, final String shmPrefix) {
+ this.clientName = Objects.requireNonNull(clientName, "Null clientName");
+ this.shmPrefix = Objects.requireNonNull(shmPrefix, "Null shmPrefix");
}
/**
@Override
public void connect() throws IOException {
- _connect();
+ _connect(shmPrefix);
}
- private void _connect() throws IOException {
+ private void _connect(final String shmPrefix) throws IOException {
+ Objects.requireNonNull(shmPrefix, "Shared memory prefix must be defined");
+
synchronized (VppJNIConnection.class) {
if (connections.containsKey(clientName)) {
throw new IOException("Client " + clientName + " already connected");
}
- connectionInfo = clientConnect(clientName);
+ connectionInfo = clientConnect(shmPrefix, clientName);
if (connectionInfo.status != 0) {
throw new IOException("Connection returned error " + connectionInfo.status);
}
public final long queueAddress;
public final int clientIndex;
public final int status; // FIXME throw exception instead
+ public final int pid;
- public ConnectionInfo(long queueAddress, int clientIndex, int status) {
+ public ConnectionInfo(long queueAddress, int clientIndex, int status, int pid) {
this.queueAddress = queueAddress;
this.clientIndex = clientIndex;
this.status = status;
+ this.pid = pid;
}
}
- private static native ConnectionInfo clientConnect(String clientName);
+ private static native ConnectionInfo clientConnect(String shmPrefix, String clientName);
private static native void clientDisconnect();