/** wait for howlong, for one more message to be available */
public static boolean wait_timeout(EProc proc, EObject howlong) throws Pausable {
try {
proc.check_exit();
if (ipclog.isLoggable(Level.FINE))
ipclog.fine("WAIT| " + proc + " waits for messages for " + howlong + " ms");
if (howlong == am_infinity) {
proc.mbox.untilHasMessages(proc.midx + 1);
proc.check_exit();
if (ipclog.isLoggable(Level.FINE)) ipclog.fine("WAIT| " + proc + " wakes up on message");
return true;
} else {
long now = System.currentTimeMillis();
if (proc.midx == 0 || proc.timeout_start == 0L) {
proc.timeout_start = now;
}
EInteger ei;
if ((ei = howlong.testInteger()) == null)
throw new ErlangError(EAtom.intern("timeout_value"));
long end = proc.timeout_start + ei.longValue();
long left = end - now;
if (left < 0) {
return false;
}
if (!proc.in_receive) {
Task.sleep(left);
return false;
} else {
if (ipclog.isLoggable(Level.FINE))
ipclog.fine(
"WAIT| " + proc + " waiting for " + left + "ms for msg #" + (proc.midx + 1));
boolean res = proc.mbox.untilHasMessages(proc.midx + 1, left);
proc.check_exit();
if (ipclog.isLoggable(Level.FINE))
ipclog.fine("WAIT| " + proc + " wakes up " + (res ? "on message" : "after timeout"));
return res;
}
}
} finally {
proc.in_receive = false;
}
}
@BIF
public static EObject send(EProc proc, final EObject pid, final EObject msg, EObject options)
throws Pausable {
// TODO handle ports also?
proc.check_exit();
// log.log(Level.FINER, "ignored options to send: " + options);
EHandle handle;
EAtom reg_name;
if ((handle = pid.testHandle()) != null) {
send_to_handle(proc, handle, msg);
return am_ok;
} else if ((reg_name = pid.testAtom()) != null) {
boolean ok = send_to_locally_registered(proc, reg_name, msg);
if (ok) return am_ok;
else throw badarg(pid, msg);
} else {
ETuple t;
EAtom node_name;
if ((t = pid.testTuple()) != null
&& t.arity() == 2
&& (reg_name = t.elm(1).testAtom()) != null
&& (node_name = t.elm(2).testAtom()) != null) {
return send_to_remote(proc, t, node_name, reg_name, msg, options);
} else { // PID was of a bad type.
ipclog.info("trying to send message to " + pid + " failed.");
throw badarg(pid, msg);
}
}
}
/**
* @param owner
* @param make
* @throws Pausable
*/
@BIF(name = "!")
public static EObject send(EProc proc, EObject pid, EObject msg) throws Pausable {
// TODO handle ports also?
proc.check_exit();
// log.log(Level.FINER, "ignored options to send: " + options);
EHandle p;
EAtom reg_name;
if ((p = pid.testHandle()) != null) {
send_to_handle(proc, p, msg);
} else if ((reg_name = pid.testAtom()) != null) {
send_to_locally_registered(proc, reg_name, msg);
} else {
ETuple t;
EAtom node_name;
if ((t = pid.testTuple()) != null
&& t.arity() == 2
&& (reg_name = t.elm(1).testAtom()) != null
&& (node_name = t.elm(2).testAtom()) != null) {
send_to_remote(proc, t, node_name, reg_name, msg, null);
} else { // PID was of a bad type.
ipclog.info("trying to send message to " + pid + " failed.");
throw badarg(pid, msg);
}
}
// Arguments were of valid types; return the message:
return msg;
}
public static void check_exit(EProc p) {
p.check_exit();
}