[Geany] Per-workspace instance of Geany

[Lex Trotman]

On 24 January 2011 01:53, Julien Nicoulaud <julien.nicoulaud at gmail.com> wrote:
> Thanks for the infos and script Dimitar !
>
> 2011/1/23 Dimitar Zhekov <dimitar.zhekov at gmail.com>
>>
>> On Sun, 23 Jan 2011 13:07:31 +1100
>> Lex Trotman <elextr at gmail.com> wrote:
>>
>> > a. who owns the preferences? preventing multiple instances from
>> > changing preferences is very limiting, if they can all change them,
>> > who saves their set when Geany terminates? and how to lock them
>> > irrespective of the filesystem they reside on to prevent scrambled
>> > preferences?
>
> Why not save preferences right when closing the preferences dialog ? That's
> what I would except as a lambda user.
>

Hi,

Unfortunately the "preferences" includes things that are not set in
the prefs dialog, eg screen layout recent files etc.  Writing this
stuff whenever it changes would mean constantly writing the prefs file
and in the absence of locking (which is not available for all file
systems) would increase the chances that two instances would try to
write it at the same time.

And then there is project session stuff, again writing it all the time
is risky, writing it at the end is a who wins problem.

Cheers
Lex

PS The prefs file currently also includes some session stuff but I'm
assuming that gets moved when session support is added, but the
project session stuff can't be

>>
>> Windows: the instances are stopped one by one. The last one wins.
>> X11: the session management supports instances.
>>
>> > b. how do you restart multiple instances? which leads to session
>> > management being required, but Geany has two potential implementations
>> > of that and no clear path forward yet
>>
>> It has a complete sm for the current single-instance behaviour, and an
>> incomplete multi-instance sm for the non-implemented multi-instance
>> behaviour. So the real question is, do we plan to introduce any multi
>> instancing in Geany in the foreseeable future? If not, the last
>> single-instance sm applies against 5530, and is quite stable.
>>
>> > c. the same issues relating to preferences apply to project files
>> > being used by more than one instance, or if a project can be open in
>> > only one instance how to enforce that?
>>
>> The same answer as for a. and b.
>>
>> > d. and of course these also apply to the same document file being open
>> > in multiple instances, at logout/shutdown who's copy gets saved? how
>> > do you detect the fact so you can at least warn the user? remember
>> > that locking and the like don't work on remote filesystems.
>>
>> Both Windows and X11-sm will ask you for any modified files.
>>
>> (In the current implementation, both simply terminate.)
>>
>> --
>> E-gards: Jimmy
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