topic Re: Are there any equivalents for ftruncate() or chsize() functions from Linux/Windows in MQX ? in MQX Software Solutions

Are there any equivalents for ftruncate() or chsize() functions from Linux/Windows in MQX ?

maciejwdowiarz- — Tue, 24 Mar 2015 10:36:14 GMT

I can't find any methods in MQX libaries designed for file trimming. How may I manage with this task ?

Thank you

Re: Are there any equivalents for ftruncate() or chsize() functions from Linux/Windows in MQX ?

DavidS — Tue, 24 Mar 2015 14:18:02 GMT

Hi Maciej,

To my knowledge there are no such commands and capabilities.

What kind of file are you trying to trim? Picture, audio, text, other?

Regards,

David

Re: Are there any equivalents for ftruncate() or chsize() functions from Linux/Windows in MQX ?

maciejwdowiarz- — Tue, 24 Mar 2015 14:22:45 GMT

I've mechanism which controlls the size of log files and in case of extending predefined file size, causes ftruncate()/chsize() to reduce its size. Thus this is text file.

Regards,

Maciej

Re: Are there any equivalents for ftruncate() or chsize() functions from Linux/Windows in MQX ?

DavidS — Tue, 24 Mar 2015 15:46:12 GMT

Ok..thank you for additional information.

We do not have this function implemented in MQX. I looked at tool libraries, MQX IO and MFS without success.

Googling did find source to review for truncate: PlibC: File Index

Regards,

David

Re: Are there any equivalents for ftruncate() or chsize() functions from Linux/Windows in MQX ?

maciejwdowiarz- — Tue, 24 Mar 2015 15:51:55 GMT

So I need to change the logic.

Thank you for checking that.

Regards,

Maciej