D27471: [plasma-session] Avoid potential race condition starting a service

2020-02-18 Thread David Edmundson
davidedmundson added inline comments.

INLINE COMMENTS

> broulik wrote in startup.cpp:429
> Could probably use an `m_service.isEmpty()` check since it will still 
> needlessly do a `NameHasOwner` call

All usages of this class (which is just the 1 case to start ksmserver!) have a 
name passed.

Without a name it wouldn't ever finish.

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D27471

To: davidedmundson, #plasma, apol
Cc: broulik, plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, 
jraleigh, zachus, fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, 
himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, 
ahiemstra, mart


D27471: [plasma-session] Avoid potential race condition starting a service

2020-02-18 Thread Kai Uwe Broulik
broulik added inline comments.

INLINE COMMENTS

> startup.cpp:429
>  {
> +if 
> (QDBusConnection::sessionBus().interface()->isServiceRegistered(m_serviceId)) 
> {
> +qCDebug(PLASMA_SESSION) << m_process << "already running";

Could probably use an `m_service.isEmpty()` check since it will still 
needlessly do a `NameHasOwner` call

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D27471

To: davidedmundson, #plasma, apol
Cc: broulik, plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, 
jraleigh, zachus, fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, 
himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, 
ahiemstra, mart


D27471: [plasma-session] Avoid potential race condition starting a service

2020-02-18 Thread David Edmundson
This revision was automatically updated to reflect the committed changes.
Closed by commit R120:854b64fc130b: [plasma-session] Avoid hypothetical race 
condition starting a service (authored by davidedmundson).

CHANGED PRIOR TO COMMIT
  https://phabricator.kde.org/D27471?vs=75902&id=75907#toc

REPOSITORY
  R120 Plasma Workspace

CHANGES SINCE LAST UPDATE
  https://phabricator.kde.org/D27471?vs=75902&id=75907

REVISION DETAIL
  https://phabricator.kde.org/D27471

AFFECTED FILES
  startkde/plasma-session/startup.cpp
  startkde/plasma-session/startup.h

To: davidedmundson, #plasma, apol
Cc: plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, 
fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, 
ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart


D27471: [plasma-session] Avoid potential race condition starting a service

2020-02-18 Thread David Edmundson
davidedmundson created this revision.
davidedmundson added a reviewer: Plasma.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
davidedmundson requested review of this revision.

REVISION SUMMARY
  If for some reason a service is started before StartServiceJob runs, we
  will end up blocking forever.

TEST PLAN
  Logged in

REPOSITORY
  R120 Plasma Workspace

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D27471

AFFECTED FILES
  startkde/plasma-session/startup.cpp
  startkde/plasma-session/startup.h

To: davidedmundson, #plasma
Cc: plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, 
fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, 
ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart


D27471: [plasma-session] Avoid potential race condition starting a service

2020-02-18 Thread David Edmundson
davidedmundson added a comment.


  I think for 5.18

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D27471

To: davidedmundson, #plasma
Cc: plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, 
fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, 
ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart