Today's Question:  What does your personal desk look like?        GIVE A SHOUT

SEARCH KEYWORD -- Group Messaging

  The Erlang Design Pattern

Over the last couple of weeks I did an OO programming experiment. I call it the Erlang design pattern. It is based on the Actor model but goes some steps further. At its core just like the Actor model there are active entities (objects) that have a thread and a message queue with the thread waiting on the message queue to do some stuff. The Erlang design pattern extends the Actor model by first dividing the software program into active (actors, that have their own thread) and passive ...

   Erlang,Thread,Pattern,OS Threads     2012-02-06 07:47:56

  Some Thoughts on Twitter's Availability Problems

As a regular user of Twitter I've felt the waves of frustration wash over me these past couple of weeks as the service has been hit by one outage after another. This led me to start pondering the problem space [especially as it relates to what I'm currently working on at work] and deduce that the service must have some serious architectural flaws which have nothing to do with the reason usually thrown about by non-technical pundits (i.e. Ruby on Rails is to blame). Some of my suspicions ...

   Twitter,Architecture,Availability,Design     2011-08-12 07:39:21

  Use of Erlang in WhatsApp

After many years, people are still discussing whether Erlang is a small language. People have all sorts of doubt about it, but with the appearance of WhatsApp, we may change our mind. What is WhatsApp, from its official website: WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS. The more funny thing is the main developer of WhatsApp Rick Reed worked in Yahoo and SGI before he joined WhatsApp and he didn't have any know...

   Erlang,WhatsApp,Architecture     2013-06-16 03:03:46

  What is encryption? Its role in the modern age

“Messages and calls are end-to-end encrypted.” If you are a WhatsApp user, you must have read this statement at the top of chats you open. Now, what does it mean? The statement signifies that all the messages or voice notes shared between users are encrypted, and no one can read or listen in on them. As mostly all of us use messaging apps and emails, information security has become a major concern. Moreover, we don’t know how many digital footprints we leave on the web can be t...

   DATA SECURITY,VPN     2021-01-21 08:04:16

  The big four in Taiwan can compete with Samsung

Taiwan's IT industry has a tense competition with South Korea, TSMC chairman Morris Chang said that although Samsung Electronics is a powerful opponent, ,there is only one Samsung in South Korean; in contrast, Taiwan has the TSMC, HTC, MediaTek and Hon Hai, they can challenge Samsung altogether.Morris Chang pointed out that Samsung Electronics is the  company with biggest market capitalization in South Korea, the market value is roughly $200 billion; but the second largest company in S...

   Taiwan,Samsung,IT     2013-06-12 06:46:16

  Skype wins its position in Windows 8.1

According to The Verge, Skype finally wins its position in Windows 8.1 after acquired by Microsoft. Microsoft will drop the existing communications applications on existing Windows and replace it with Skype. Skype and Windows 8.1 will be more closely associated and this is what Microsoft expects. On Windows 8.1, users can still use Skype for voice or video calls even it's in lock screen mode.In February, Microsoft announced that Windows Live Messenger users would be forced to upgrade to Skype, ...

   Skype,Windows 8.1,Build 2013     2013-06-27 23:49:13

  Different ways of handling concurrent job in GoLang

GoLang provides very good support of concurrency and the way to make some code to run concurrent is pretty simple and straightforward. Adding a simple go before a normal function call will make the function call asynchronous. In real cases normally people would concurrently run some jobs to improve the speed and efficiency. One important part of running jobs concurrently is about aggregating results so that the consequent function call would be able to proceed. There are multiple ways handling t...

   COMPARISON,WORKER POOL,WAITGROUP,CONCURRENT     2021-05-15 11:13:53

  How iPhone App Developers Will Get Benefited by iOS 11?

At Apple WWDC 2017, the CEO Tim Cook introduced the next generation of iOS, i.e., iOS 11. Various improvements and innovations included in iOS 11 were discussed. And what one can say from the whole is that this year’s WWDC keynote was more developer-oriented than user-oriented. It was, indeed, an assistance to the iPad and iPhone app developers to create more innovative mobile apps, and serve users for lifetime.  If you are an iOS app developer or working at an iPhone app development...

   APPLE,IPHONE APP DEVELOPERS,IPHONE APP,IPHONE,MOBILE APP     2017-06-14 06:17:22

  Live in Beijing and Thinking about Starting a Tech Company? Read. This. Post. Now.

The Disrupt Beijing Hackathon starts in a little more than 24 hours, and we’ve been working hard over the last few days to make it even more of a no-brainer for local Beijing developers to attend.In addition to the chance to be the next GroupMeor win valuable prizes, we have decided to give all Hackathon attendees who complete a hack and present in the 24-hour period free tickets to the Disrupt conference Monday and Tuesday. That’s a $1,000-plus value for s...

   Startup,Beijing,TechCrunch,Disrupt,2011     2011-10-28 12:41:43

  errGroup in GoLang explained

Today, let's talk about the usage and applicable scenarios of errGroup, which is often used. Why is it useful? Generally, when we use goroutine, we cannot return a value. If you want to pass out the result of the goroutine execution, you usually have to use the channel. The errGroup package is suitable if you want to know when the goroutine you opened encounters an error during execution and stop working, and I need to know the error value. errGroup usage The package needs to be downloaded and i...

   GOLANG,ERRGROUP,WAITHROUP,CONCURRENCY     2023-05-27 23:58:20

RECENT