[fpc-pascal] Best way to check SimpleIPC for messages

[noreply at z505.com]

On 2017-05-16 04:55, Michael Schnell wrote:
> On 16.05.2017 07:30, Michael Van Canneyt wrote:
>> 
>> select is basically what peekmessage does.
>> 
> AFAIK "select()" (and - more versatile -  "<e>poll()"  ) in Linux uses
> an appropriate system call to wait on one of multiple events (i.e.
> devices, including e.g. pipes, which might be used by IPC). (Despite
> the name) it does not do any "busy wait" ("polling"). So it's can be
> used (instead of waiting in a blocking read)  in a worker-thread of an
> "application". It's perfectly useful in an program without a message
> queue provided by LCL or the mse-library.
> 

But can it be used without threads at all without locking the app up