private void send(
final Address dest, final int num_msgs, final int num_threads, final double oob_prob)
throws Exception {
if (num_threads <= 0) throw new IllegalArgumentException("number of threads <= 0");
if (num_msgs % num_threads != 0)
throw new IllegalArgumentException(
"number of messages ( "
+ num_msgs
+ ") needs to be divisible by "
+ "the number o threads ("
+ num_threads
+ ")");
if (num_threads > 1) {
final int msgs_per_thread = num_msgs / num_threads;
Thread[] threads = new Thread[num_threads];
final AtomicInteger counter = new AtomicInteger(0);
for (int i = 0; i < threads.length; i++) {
threads[i] =
new Thread() {
public void run() {
for (int j = 0; j < msgs_per_thread; j++) {
Channel sender = Util.tossWeightedCoin(0.5) ? a : b;
boolean oob = Util.tossWeightedCoin(oob_prob);
int num = counter.incrementAndGet();
Message msg = new Message(dest, null, num);
if (oob) msg.setFlag(Message.OOB);
try {
sender.send(msg);
} catch (Exception e) {
e.printStackTrace();
}
}
}
};
threads[i].start();
}
for (int i = 0; i < threads.length; i++) {
threads[i].join(20000);
}
return;
}
for (int i = 0; i < num_msgs; i++) {
Channel sender = Util.tossWeightedCoin(0.5) ? a : b;
boolean oob = Util.tossWeightedCoin(oob_prob);
Message msg = new Message(dest, null, i);
if (oob) msg.setFlag(Message.OOB);
sender.send(msg);
}
}
public void run() {
final byte[] buf = new byte[msg_size];
Object[] put_args = {0, buf};
Object[] get_args = {0};
MethodCall get_call = new MethodCall(GET, get_args);
MethodCall put_call = new MethodCall(PUT, put_args);
RequestOptions get_options = new RequestOptions(ResponseMode.GET_ALL, 40000, false, null);
RequestOptions put_options =
new RequestOptions(
sync ? ResponseMode.GET_ALL : ResponseMode.GET_NONE, 40000, true, null);
if (oob) {
get_options.setFlags(Message.OOB);
put_options.setFlags(Message.OOB);
}
if (sync) {
get_options.setFlags(Message.DONT_BUNDLE, Message.NO_FC);
put_options.setFlags(Message.DONT_BUNDLE, Message.NO_FC);
}
while (true) {
long i = num_msgs_sent.getAndIncrement();
if (i >= num_msgs_to_send) break;
boolean get = Util.tossWeightedCoin(read_percentage);
try {
if (get) { // sync GET
Address target = pickTarget();
get_args[0] = i;
disp.callRemoteMethod(target, get_call, get_options);
num_gets++;
} else { // sync or async (based on value of 'sync') PUT
Collection<Address> targets = pickAnycastTargets();
put_args[0] = i;
disp.callRemoteMethods(targets, put_call, put_options);
num_puts++;
}
} catch (Throwable throwable) {
throwable.printStackTrace();
}
}
}