[Octave-patch-tracker] [patch #7949] octave-gui freezes for 30+ seconds when trying to display a new documentation tab

[Andre da Costa Barros]

Follow-up Comment #6, patch #7949 (project octave):

I am still waiting for Qt 5.1 to see if it fixes problems related to "wait for
pid" SIGNCHLD signal processing.

If you need a more in depth discussion, take a look at:
"http://www.macieira.org/blog/2012/07/forkfd-part-4-proposed-solutions/"; or
browse for many problems. There you will find how it should be handled on unix
too.

I have right now 3 "solutions":
..1) an improved version of my first patches (i.e., saving 
.... expanded info files before the fork phase);
..2) patches linking to libz on linux so that we can uncompress
.... the info files directly;
..3) an still incipient and kind of rough combination of the
.... expansion phases present on 7zip libs (it can be compiled
.... to support tar, zip, rar, gzip and bzip2 formats). The
.... advantage been a kind of multi-platform support at the cost
.... of requiring more libs;

I would pick solution 2 on linux, but I don't know what is happening on MS
Windows or OSX, i.e., if they are affected by freezing for ~30 seconds.

Anyway, I still hope that the problem will be fixed where it should, on Qt.


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