/// <summary>
/// Reads the value of remote PadInt
/// </summary>
/// <returns>The value of the remote PadInt</returns>
public int Read()
{
Logger.Log(new String[] { "PadIntStub", "read" });
try {
int result;
if (cache.HasWritePadInt(serverID, uid) || cache.HasReadPadInt(serverID, uid))
{
result = cache.GetPadIntValue(serverID, uid);
cache.UpdatePadIntValue(serverID, uid, result);
}
else
{
IServer server = (IServer)Activator.GetObject(typeof(IServer), address);
result = server.ReadPadInt(tid, uid);
}
cache.setPadIntAsRead(serverID, uid);
return(result);
} catch (PadIntNotFoundException) {
try {
cache.UpdatePadIntServer(serverID, uid);
return(Read());
} catch (PadIntNotFoundException) {
throw;
}
} catch (WrongPadIntRequestException) {
throw;
} catch (AbortException) {
Console.WriteLine("Abort Exception: cannot obtain the read lock.");
PadiDstm.TxAbort();
throw;
} catch (SocketException) {
try {
cache.UpdatePadIntServer(serverID, uid);
return(Read());
} catch (PadIntNotFoundException) {
throw;
}
}
}
/// <summary>
/// Writes the value on remote PadInt
/// </summary>
/// <param name="value">The value to write</param>
/// <returns>A predicate confirming the sucess of the operations</returns>
public bool Write(int value)
{
Logger.Log(new String[] { "PadIntStub", "write" + "value" + value.ToString() });
try {
if (!cache.HasWritePadInt(serverID, uid))
{
IServer server = (IServer)Activator.GetObject(typeof(IServer), address);
server.WritePadInt(tid, uid, value);
cache.setPadIntAsWrite(serverID, uid);
}
cache.UpdatePadIntValue(serverID, uid, value);
return(true);
} catch (PadIntNotFoundException) {
try {
cache.UpdatePadIntServer(serverID, uid);
return(Write(value));
} catch (PadIntNotFoundException) {
throw;
}
} catch (WrongPadIntRequestException) {
throw;
} catch (AbortException) {
Console.WriteLine("Abort Exception: cannot obtain the write lock.");
PadiDstm.TxAbort();
throw;
} catch (SocketException) {
try {
cache.UpdatePadIntServer(serverID, uid);
return(Write(value));
} catch (PadIntNotFoundException) {
throw;
}
}
}
