[Libreoffice-bugs] [Bug 88230] cleanup solar mutex yielding ...

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=88230

--- Comment #23 from Pranav Kant  ---
(In reply to Michael Meeks from comment #22)
> Pranav - I was going to close this; but - can you look and see if this
> change is necessary to make this more correct ? =)
> 
> Thanks !
> 
> diff --git a/fpicker/source/win32/filepicker/asyncrequests.cxx
> b/fpicker/source/win32/filepicker/asyncrequests.cxx
> index 089beca..87e53fa 100644
> --- a/fpicker/source/win32/filepicker/asyncrequests.cxx
> +++ b/fpicker/source/win32/filepicker/asyncrequests.cxx
> @@ -28,6 +28,8 @@ namespace vista{
>  static void lcl_sleep( ::osl::Condition& aCondition,
> ::sal_Int32   nMilliSeconds )
>  {
> +SolarMutexReleaser aReleaser;
> +
>  if (nMilliSeconds < 1)
>  aCondition.wait(0);
>  else
> @@ -41,8 +43,6 @@ static void lcl_sleep( ::osl::Condition& aCondition,
>  
>  void Request::wait( ::sal_Int32 nMilliSeconds )
>  {
> -SolarMutexReleaser aReleaser;
> -
>  lcl_sleep( m_aJoiner, nMilliSeconds );
>  }

Looking at commit history around that code, I came across Bug 92460 fixed in
c18f11587d37f285a95447dd8996c8b605732e00

Making this change would mean that we are trying to release a SolarMutex on a
thread that doesn't ever lock it resulting UI freeze as reproduced by many in
Bug 92460.

So, no this change shouldn't go in. Please correct me if I am wrong.

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Michael Meeks  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #24 from Michael Meeks  ---
Wonderful =) thanks Pranav.

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--- Comment #22 from Michael Meeks  ---
Pranav - I was going to close this; but - can you look and see if this change
is necessary to make this more correct ? =)

Thanks !

diff --git a/fpicker/source/win32/filepicker/asyncrequests.cxx
b/fpicker/source/win32/filepicker/asyncrequests.cxx
index 089beca..87e53fa 100644
--- a/fpicker/source/win32/filepicker/asyncrequests.cxx
+++ b/fpicker/source/win32/filepicker/asyncrequests.cxx
@@ -28,6 +28,8 @@ namespace vista{
 static void lcl_sleep( ::osl::Condition& aCondition,
::sal_Int32   nMilliSeconds )
 {
+SolarMutexReleaser aReleaser;
+
 if (nMilliSeconds < 1)
 aCondition.wait(0);
 else
@@ -41,8 +43,6 @@ static void lcl_sleep( ::osl::Condition& aCondition,

 void Request::wait( ::sal_Int32 nMilliSeconds )
 {
-SolarMutexReleaser aReleaser;
-
 lcl_sleep( m_aJoiner, nMilliSeconds );
 }

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[Libreoffice-bugs] [Bug 88230] cleanup solar mutex yielding ...

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Joel Madero  changed:

   What|Removed |Added

 CC||jmadero@gmail.com

--- Comment #21 from Joel Madero  ---
Is this one complete? If not - should we assign it to someone?

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yeliz  changed:

   What|Removed |Added

   Assignee|yeliztanero...@gmail.com|libreoffice-b...@lists.free
   ||desktop.org

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yeliz  changed:

   What|Removed |Added

   Assignee|libreoffice-b...@lists.free |yeliztanero...@gmail.com
   |desktop.org |

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yeliz  changed:

   What|Removed |Added

 QA Contact||yeliztanero...@gmail.com

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--- Comment #16 from Commit Notification 
libreoffice-comm...@lists.freedesktop.org ---
Pranav Kant committed a patch related to this issue.
It has been pushed to master:

http://cgit.freedesktop.org/libreoffice/core/commit/?id=b15b97ee6b21be18d4ba5df396d39b6d3dab57e1

tdf#88230: Cleanup solar mutex yielding

It will be available in 4.5.0.

The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
http://wiki.documentfoundation.org/Testing_Daily_Builds
Affected users are encouraged to test the fix and report feedback.

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--- Comment #17 from Commit Notification 
libreoffice-comm...@lists.freedesktop.org ---
Pranav Kant committed a patch related to this issue.
It has been pushed to master:

http://cgit.freedesktop.org/libreoffice/core/commit/?id=c6c4d21847ef18ae7378e1a5a329000ea6547d18

tdf#88230: Remove bogus AcquireSolarMutex fpicker wrapper

It will be available in 4.5.0.

The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
http://wiki.documentfoundation.org/Testing_Daily_Builds
Affected users are encouraged to test the fix and report feedback.

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[Libreoffice-bugs] [Bug 88230] cleanup solar mutex yielding ...

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--- Comment #19 from Commit Notification 
libreoffice-comm...@lists.freedesktop.org ---
Pranav Kant committed a patch related to this issue.
It has been pushed to master:

http://cgit.freedesktop.org/libreoffice/core/commit/?id=183f3791bad09cf95c2eee6e7bb043d7b00546a0

Reverts and correct tdf#88230: Cleanup solar mutex yielding

It will be available in 4.5.0.

The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
http://wiki.documentfoundation.org/Testing_Daily_Builds
Affected users are encouraged to test the fix and report feedback.

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--- Comment #20 from Commit Notification 
libreoffice-comm...@lists.freedesktop.org ---
Stephan Bergmann committed a patch related to this issue.
It has been pushed to master:

http://cgit.freedesktop.org/libreoffice/core/commit/?id=f2edd09bf3ab4f705818a9d7bae58a72e78f102c

tdf#88230 Blind fix for IOS-only code

It will be available in 4.5.0.

The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
http://wiki.documentfoundation.org/Testing_Daily_Builds
Affected users are encouraged to test the fix and report feedback.

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--- Comment #13 from Michael Meeks michael.me...@collabora.com ---
The sw/ viewsh.cxx thing should be a stock SolarMutexGuard aGuard; I think =)
rather than using this un-helpful API =)

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Michael Meeks michael.me...@collabora.com changed:

   What|Removed |Added

 CC||sberg...@redhat.com

--- Comment #12 from Michael Meeks michael.me...@collabora.com ---
Lovely cleanup - thanks Pranav. Stephan - I agree that the 'clear' method is
not ideal - for sure; then again it hardly looks necessary in the current
code-base.

Pranav - I'd love to get this guy closed; but I still see a few bits that could
use some cleanup:

fpicker/source/win32/filepicker/SolarMutex.hxx:void AcquireSolarMutex(int
nAcquireCount);

That thing seems torally bogus; there is no need for this fpicker wrapper - can
we kill that ?

sw/source/core/view/viewsh.cxx-// Creation, use and destruction of a
VirtualDevice needs to be
sw/source/core/view/viewsh.cxx-// protected by the SolarMutex, it seems.
sw/source/core/view/viewsh.cxx:Application::AcquireSolarMutex(1);



And after that I'd love to make the 'AcquireSolarMutex' and release method
private methods - and add a 'friend' class for the SolarMutexReleaser and other
methods that have a legimitate use for that.

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--- Comment #14 from Michael Meeks michael.me...@collabora.com ---
Oh; and while I'm here - forget the 'friend' thing - we should just kill the
crazy Application:: yielding functions, and move their implementation to
non-in-line methods in the Releaser - since they use the global VCL backend
state anyway so - no need to associate them with that class =)

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--- Comment #15 from Pranav Kant pranav...@gmail.com ---
Here's the change taking care of your comments above.

https://gerrit.libreoffice.org/14974

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Commit Notification libreoffice-comm...@lists.freedesktop.org changed:

   What|Removed |Added

 Whiteboard|EasyHack DifficultyBeginner |EasyHack DifficultyBeginner
   |SkillCpp TopicCleanup   |SkillCpp TopicCleanup
   ||target:4.5.0

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--- Comment #11 from Commit Notification 
libreoffice-comm...@lists.freedesktop.org ---
Pranav Kant committed a patch related to this issue.
It has been pushed to master:

http://cgit.freedesktop.org/libreoffice/core/commit/?id=33de587e95dddfc8e3c89b84f90b3d1bca823dae

tdf#88230: cleanup solar mutex yielding

It will be available in 4.5.0.

The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
http://wiki.documentfoundation.org/Testing_Daily_Builds
Affected users are encouraged to test the fix and report feedback.

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--- Comment #7 from Gülşah Köse gulsah.1...@gmail.com ---
Hi Michael

I am trying to fix this bug. I sent a patch to test if I understand correctly
this.

https://gerrit.libreoffice.org/#/c/14869/1/accessibility/source/standard/vclxaccessibleedit.cxx,cm

if you say that way is right way I will continue the correction for other
files.

Thanks

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--- Comment #8 from Pranav Kant pranav...@gmail.com ---
(In reply to Michael Meeks from comment #5)
 Ah - so you want a clearable SolarMutexReleaser ? =) do create one if so.

I extended SolarMutexReleaser class, and added a clear() method to support
explicit solar mutex acquire.

Here are the patches (Successfully build on jenkins.)

https://gerrit.libreoffice.org/#/c/14867/2
https://gerrit.libreoffice.org/#/c/14868/2

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--- Comment #9 from Pranav Kant pranav...@gmail.com ---
(In reply to Gülşah Köse from comment #7)
 Hi Michael
 
 I am trying to fix this bug. I sent a patch to test if I understand
 correctly this.
 
 https://gerrit.libreoffice.org/#/c/14869/1/accessibility/source/standard/
 vclxaccessibleedit.cxx,cm
 
 if you say that way is right way I will continue the correction for other
 files.
 
 Thanks

Hey, sorry, I was already working on it..

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--- Comment #10 from Gülşah Köse gulsah.1...@gmail.com ---
Sorry Pranav. I saw wrong your comment's date.

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--- Comment #4 from Pranav Kant pranav...@gmail.com ---
(In reply to Michael Meeks from comment #3)
  However, I noticed that there are situations where we might need to call the
  destructor of SolarMutexReleaser explicitly.
 
 For that you should use:
 
 class VCL_DLLPUBLIC SolarMutexClearableGuard
 
 where you can explicitly release it earlier if necessary by calling clear().
 
 Thanks !

The problem with using SolarMutexClearableGuard is that as soon as I create an
object of it, it will acquire the Mutex, whereas what we need is to release it
momentarily and then acquire it.

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--- Comment #6 from Pranav Kant pranav...@gmail.com ---
(In reply to Michael Meeks from comment #5)
 Ah - so you want a clearable SolarMutexReleaser ? =) do create one if so.

Is it necessary to create a separate class, can't I extend the existing
SolarMutexReleaser class to have clear function ?

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--- Comment #5 from Michael Meeks michael.me...@collabora.com ---
Ah - so you want a clearable SolarMutexReleaser ? =) do create one if so.

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--- Comment #3 from Michael Meeks michael.me...@collabora.com ---
 However, I noticed that there are situations where we might need to call the
 destructor of SolarMutexReleaser explicitly.

For that you should use:

class VCL_DLLPUBLIC SolarMutexClearableGuard

where you can explicitly release it earlier if necessary by calling clear().

Thanks !

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mridul mridulgup...@gmail.com changed:

   What|Removed |Added

   Assignee|libreoffice-b...@lists.free |mridulgup...@gmail.com
   |desktop.org |

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mridul mridulgup...@gmail.com changed:

   What|Removed |Added

   Assignee|mridulgup...@gmail.com  |libreoffice-b...@lists.free
   ||desktop.org

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--- Comment #2 from Pranav Kant pranav...@gmail.com ---
However, I noticed that there are situations where we might need to call the
destructor of SolarMutexReleaser explicitly.

Would that be okay ?

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--- Comment #1 from Pranav Kant pranav...@gmail.com ---
I would like to fix this.

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Michael Meeks michael.me...@collabora.com changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever confirmed|0   |1
 Whiteboard||EasyHack DifficultyBeginner
   ||SkillCpp TopicCleanup

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