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  Exit main thread and keep other threads running in C

In C programming, if using return in main function, the whole process will terminate. To only let main thread gone, and keep other threads live, you can use thrd_exit in main function. Check following code: #include #include #include int print_thread(void *s) { thrd_detach(thrd_current()); for (size_t i = 0; i < 5; i++) { sleep(1); printf("i=%zu\n", i); } thrd_exit(0); } int main(void) { ...

   C LANGUAGE,MULITHREAD,MAIN THREAD     2020-08-14 21:20:04

  User experience : Exception handling

Exception handling is the process of handling emergencies or unpredictable operational errors. The specific time of the occurrence of unexpected events and the actual consequences of the specific situation are difficult to predict. How to handle this unexpected crisis is also related to the user experience of your users. Let's first look at how some famous products deal with unexpected exception encountered by users:1. Goodyear tires can automatically expand when leaking.Tire blast is one of the...

   User experience,Exception handling     2013-04-06 05:05:04

  Fix issue "cannot load such file -- bcrypt_ext (LoadError)"

bcrypt() is a sophisticated and secure hash algorithm designed by The OpenBSD project for hashing passwords. The bcrypt Ruby gem provides a simple wrapper for safely handling passwords. However, sometimes the rails application would fail to start after installing the bcrypt gem on Windows. The error would look similar to below. The issue is that it fails to load the bcrypt_ext which is the native built extension, the reason may be the library is wrongly built. To fix this issue, below steps can...

   RUBY,SOLUTION,RUBY ON RAILS,BCRYPT,LOAD ERROR     2017-03-05 00:21:10

  WeChat 5.0 is coming soon

WeChat 5.01 now is available on App Store, but on Android, you still need to wait for some more time. If you want to experiment with new features of WeChat 5.0 now and you are using Android, you can request a beta version of WeChat 5.0 through here .Let's check out the new features first. WeChat 5.0 adopts the popular flat design, it focus on game platform. Main features are: You can play games with friends in game center Add bank account to pay with WeChat New bookmark function, you can bookm...

   WeChat 5.0,New fetuares     2013-08-04 22:42:45

  Different types of keystore in Java -- BKS

BKS is a keystore format provided by the popular third party Java cryptographic library provider -- BouncyCastle. It is a keystore similar to the JKS provided by Oracle JDK.  Before starting to use BKS, the BouncyCastle provider has to be downloaded and installed. To download the provider, please go to BouncyCastle download page. The provider can be installed by adding an entry in the java.security file. security.provider.N=org.bouncycastle.jce.provider.BouncyCastleProvider N means the pr...

   JAVA,KEYSTORE,BOUNCYCASTLE,BKS     2016-07-03 03:00:18

  Mark Zuckerberg : Facebook's biggest mistake is relying too much on HTML5

On Disrupt conference organized by TechCrunch, Facebook founder and CEO Mark Zuckerberg said they relied too heavily on HTML5 and ignored the advantages of the Native-App when talking about Facebook mobile product design strategy.Zuckerberg said the focus in HTML5 was his biggest mistake. This is the first time the young CEO admits he is wrong on HTML5 and native applications publicly. Zuckerberg later mentioned after transferring the Facebook client from HTML to Native applications, users coms...

   Facebook,HTML5,Native app     2012-09-11 19:18:39

  New member in Samsung family

According to The Verge, Samsung will enhance its product army by unveiling two new tablet devices, they are 8 inch and 10.1 inch Galaxy Tab 3. The configuration details of 8 inch Galaxy Tab 3 are: 1.5 GHz Exynos dual core processor WXGA TFT display screen, resolution is 1280x800 px and 189 PPI The main camera is 8 megapixel, 1.3 megapixel front camera 4450 mAh battery 1.5 GB RAM 16GB/32GB storage space The configuration details of 10.1 inch Galaxy Tab 3 are: 1.6 GHz Intel dual-core processor...

   Samsung Galaxy Tab 3,Tablet     2013-06-03 12:17:04

  Samsung S3 defeats iPhone 4S in sales in Q3

The market research firm Strategy Analytics publishes a research report which states global sales of Samsung Galaxy S3 is over iPhone 4S in the third quarter of 2012, it becomes the most popular mobile phone.From the chart below, Galaxy S3 was sold 18 million units in Q3, while iPhone 4S was sold 16.2 million units. Galaxy S3 took market share of 10.7%, and iPhone 4S took 9.7%.Perhaps people are not willing to buy iPhone 4S due to the launch of the iPhone 5, the iPhone 4S sales lost to Gala...

   Samsung S3,sale,iPhone 4S     2012-11-08 11:22:54

  JQuery Mobile App Development Tips

Over the recent years, jQuery has been considered as a popular javascript library for creating rich interface websites and applications. And since the framework was initially meant to design desktop browsers, it doesn’t comprise of many features for building mobile apps. Thus, JQuery Mobile app development came into existence. Prominent jQuery development company offers  cutting-edge framework, a range of user interface elements and features for developers to develop innovative and us...

   JQUERY DEVELOPMENT COMPANY,JQUERY DEVELOPMENT COMPANY INDIA,JQUERY DEVELOPERS     2017-07-27 03:59:47

  Something you may not know about Shell

Shell is also called command line interface, it is the interface between *nix users and computer. Shell is a program which provides service to access OS kernel services. This article is to introduce some not so well known but useful and interesting knowledge about shell. Wiki shell was born almost at the same time as Unix. The first UNIX shell was written by Ken Thompson in 1971 and its name is Thompson sh. It's older than Linux kernel. The default Shell in most *nix and MacOS is bash, bash was...

   Linux, Unix,Shell,Command     2012-11-24 07:19:47

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