What is difference between std.signal and events?

Orvid King blah38621 at gmail.com
Thu Jan 16 15:22:45 PST 2014


On Thu, 16 Jan 2014 13:43:39 -0600, Uranuz <neuranuz at gmail.com> wrote:

> I have read some posts about new std.signal implementation. The last was  
> this review thread:  
> http://forum.dlang.org/thread/ujlhznaphepibgtpcoqz@forum.dlang.org. What  
> I still can't understand what is difference between signals and events  
> in languages like JavaScript, C# and Borland C++ (that has it's own  
> extension to language to implement events). As far as I understand in C#  
> events are based on delegates but have some limitations. They can only  
> be fired from owner's method. In JS events at my point of view are used  
> to notify some input events or DOM changes. Borland C++ uses them to  
> notify GUI events (in example button click). Is module called "signals"  
> only for not interfere with OS IO events or is there some difference and  
> reason?

It's called signals because they are addressed by name, and are global in  
scope. (provided I've read the information on std.signal correctly) There  
are also C#-like multi-cast delegate (event) implementations, such as my  
implementation. (https://github.com/Orvid/std.event)


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