SEARCH KEYWORD -- Create
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
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
Shell script common interview questions
Shell script is frequently used when monitoring system status on Linux. It's not an easy task to write shell script but it's a very important skill for developers and system administrators to ease work and automate common tasks. This post will share some common interview questions about shell script. 1. Get random characters(8 characters) Method 1 # echo $RANDOM |md5sum |cut -c 1-8 471b94f2 Method 2 # openssl rand -base64 4 vg3BEg== Method 3 # cat /proc/sys/kernel/random/uuid |cut -c 1-8 ed...
LINUX,INTERVIEW,SHELL SCRIPT 2018-09-28 10:46:00
Microsoft Edge extension manifest v2 migration to v3
In June 2023, Microsoft Edge would not allow Edge extensions with manifest version before v3 to be listed on Microsoft web stores as v3 extensions add more security privacy related restrictions on some of the functions. Hence all extensions with manifest v2 must migrate to v3. In this post, we would show how we did the migration for one of our extensions and the changes made. There is a checklist provided by Microsoft Edge team on what needs to be updated so that the extension can stil...
MICROSOFT EDGE,EXTENSION,MANIFEST V3 2022-10-01 02:54:47
The Wasteful Legacy of Programming as Language
A few years ago I visited a friend who is a graduate student in linguistics. After some time he asked me if I was aware of the work by Chomsky on formal languages. I told him that yes, Chomsky work was a basis for much of the developments in theoretical computer science. More than that, I was glad to learn that there was something technical that I could share and discuss with other people in linguistics. At the time I found this was just a great coincidence. It was only recently, though, t...
Programming language,Human language,Chomsky 2011-11-28 10:36:34
Google's acquisition of Quickoffice threatens Microsoft
Windows has over 90% market share in desktop operating systems, even though now other OS such as Mac OS and Linux are saying they are more user friendly, more stable and safer than Windows, Windows still has a weapon MS Office which can defeat all of them. However, with the development of mobile network and cloud computing, Windows is now challenged by different competitors on mobile and cloud areas. Mobile and cloud are weak sides of Microsoft , but they are strength of Google.Google sudd...
Google,QuickOffice,Microsoft,MS Office 2012-06-07 11:40:10
Chrome extension manifest v2 migration to v3
In 2023, Google would not allow Chrome extensions with manifest version before v3 to be listed on Chrome web stores as v3 extensions add more security privacy related restrictions on some of the functions. Hence all extensions with manifest v2 must migrate to v3. In this post, we would show how we did the migration for one of our extensions and the changes made. There is a checklist provided by Chrome team on what needs to be updated so that the extension can still work in v3. It can be checked ...
CHROME EXTENSION,MANIFEST V3,MIGRATION 2022-09-24 10:44:54
10 principles to start your own business
Guy Kawasaki is a Silicon Valley venture capitalist, bestselling author, and Apple Fellow. He was one of the Apple employees originally responsible for marketing the Macintosh in 1984. He is currently a Managing Director of Garage Technology Ventures, and has been involved in the rumor reporting site Truemors and the RSS aggregation Alltop. He is also a well-known blogger.We summarized 10 principles to start a new business from one of his presentations. 1. Make meaning in your companyThe most...
Business,Guy Kawasaki,Tips 2012-05-18 12:11:20
Products born for Cloud
Cloud computing has become increasingly popularity among companies. It greatly saves the investment of infrastructure and training with everything is running on cloud, it also improves the accessibility and flexibility of service provided by companies. With its popularity, many products are born or becoming popular to help build and move the apps to the cloud. Some well known names of these products are Vagrant, Docker/LXC, Chef and OpenStack. These tools can help create, test and deploy applica...
Cloud,Openstack,Docker,Vargrant,LXC,Chef 2015-01-25 02:27:11
Linux Clock : CST,UTC and NTP setup
1. There is an option when you set up clock on installing Linux: system clock users UTC, so what does UTC mean? It's Universal Time Coordinated(UTC), there are two different times in GPS system: one is UTC , the other one is LT(Local Time). The difference between these two is just the timezone difference, UTC is the time in timezone 0. If the local time in Beijing is 8 o'clock in the morning, then UTC time is 0 o'clock, which is a 8 hour difference. 2. In Linux, when we use date to check the tim...
RECENT
- Common Pitfalls When Handling JSON in Golang
- Streamlining the Project Invoicing Process: Tools and Strategies
- Performance comparison of string concatenation in Go language
- Why init() is not recommended in Go
- The Role of Coding Skills in Advancing Tech Careers
- Tips for Socializing With Friends During College
- Proximity Cards Do More Than Just Open Doors
- How to choose quality painted auto parts
- Oval engagement rings from MoonOcean: Elegance of form and individual approach
- Hologres vs AWS Redshift
- more>>