I'm trying to get ZSync to work between a desktop and iPhone app. I've got my schemas set up and all info matches between my MOM and my schema so I should be good to go. When I initiate my sync, however, I get this error. |Miscellaneous|Error| SyncServices precondition failure in [ISyncSession _validateClient:entityNames:beforeD...
Hi, I've got the following code, which I expected to deadlock after printing out "Main: pre-sync". But it looks like synchronized doesn't do what I expect it to. What happens here? import java.util.*; public class deadtest { public static class waiter implements Runnable { Object obj; public waiter(Object obj) { ...
Hi, Would like to ask is there any way to synchronize Ms Access and mySQL but are hosted in different hosting. If I update the Ms Access, the mySQL database in different Host is updated automatically. Thank you. ...
How to release a lock on a object acquired through synchronization..????? ...
Dear All I would like to ask couple of Questions regarding the use of Monitor Class in .Net. To understand the Questions please look at the following Code. public class MyClass { private List<int> _MyCollection = new List<int>(); public void GetLock() { Monitor.Enter(_MyCollection); } public void Release...
whats the best way to synchronize few tables of mysql server with postgreSQL server, currently people are executing scripts, which takes much time, is there any fast solution available from which we can map the tables and columns to synchronize the db server. ...
Hello. I have a database (in Access 95 format... don't ask) that contains data i'd like to use in Django. I can already successfully connect, issue queries, etc using pyodbc. For the most part this is a one way sync operation - that is, the data won't be modified in Django, but will be modifed in the Access 95 db via legacy applications...
public static MySingleton getInstance() { if (_instance==null) { synchronized (MySingleton.class) { _instance = new MySingleton(); } } return _instance; } 1.is there a flaw with the above implementation of the getInstance method? 2.What is the difference between the two implementations.? public static synchronized MyS...
Hi, I'm writing an application with offline support. i.e. browser/mobile clients sync commands to the master db every so often. I'm using uuid's on both client and server-side. When synching up to the server, the servre will return a map of local uuids (luid) to server uuids (suid). Upon receiving this map, clients updated their record...
I'm creating an iTunes clone in Cocoa (don't ask why, it's not evil) and I want to be able to sync my iPod with it. This means: music, photos, videos and podcasts. I couldn't really find anything, since Google only shows articles about iPod touch and iPhone programming, but I'm actually creating a desktop application for Mac OS X, and I ...
I am employing ThreadPool.QueueUserWorkItem to play some sound files and not hanging up the GUI while doing so. It is working but has an undesirable side effect. While the QueueUserWorkItem CallBack Proc is being executed there is nothing to stop it from starting a new thread. This causes the samples in the threads to overlap. How can...
Consider a situation. I have an in-proc COM server that contains two COM classes. Both classes are marked as "no threading model" in the registry - the "ThreadingModel" value is just absent. Both classes read/write the same set of global variable without any synchronization. As far as I know "no threading model" will enforce COM to disa...
Here's my problem. I built a web app, and naturally kept the data in a database which describes that app's domain. Afterwords, I built another web app for the same organization, and used a seperate database to describe that app's domain and store data... and naturally a couple more projects came up and for each app I've isolated it's dat...
I search for way to synch my local code with server on debain linux. For example i modify some files, then i can run synch command, and only changed files send to server (using ssh for ex). Can you help me with good light solution for this? ...
I am writing a program that simulates process synchronization. I am trying to implement the fork and semaphore techniques in C++, but am having trouble starting off. Do I just create a process and send it to fork from the very beginning? Is the program just going to be one infinite loop that goes back and forth between parent/child pr...
I want to build an application that utilizes the data from a server, and it needs to synchronize the data in the application with the data entered by other client applications. So, there are some questions: How to design the database schema efficiently? Should it replicate the same database schema on the server or should it add some m...
I have a problem, I need to sync version of the project. Changes are performed on main project that resides on central Coldfusion server. There are about 30 remote Coldfusion servers, that has to sync with latest version on central server. New synch application will to be done in Java! I have a direct link to each remote location. Mo...
Hi I am working on the sleeping barber problem. with the addition of having priority customer when they arrive they go in the front of the line and they are the next ones to get a haircut. I'm using a linkedlist and if I see a priority customer I put him in the beginning of the list, if the customer is not priority he goes to the end o...
Hi, I am working through an example in Java Concurrency in Practice and am not understanding why a concurrent-safe container is necessary in the following code. I'm not seeing how the container "locations" 's state could be modified after construction; so since it is published through an 'unmodifiableMap' wrapper, it appears to me ...
If I have an object that I would like to force to be accessed from within a lock, like so: var obj = new MyObject(); lock (obj) { obj.Date = DateTime.Now; obj.Name = "My Name"; } Is it possible, from within the AddOne and RemoveOne functions to detect whether the current execution context is within a lock? Something like: M...