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Today's Topics:
1. [Bug 512717] New: ValueBase classes "enhancements"
(glibmm (bugzilla.gnome.org))
2. [Bug 512717] ValueBase classes "enhancements"
(glibmm (bugzilla.gnome.org))
3. [Bug 512717] ValueBase classes "enhancements"
(glibmm (bugzilla.gnome.org))
4. [Bug 511972] glibmm doesn't have an AsyncQueue class
(glibmm (bugzilla.gnome.org))
5. [Bug 511972] glibmm doesn't have an AsyncQueue class
(glibmm (bugzilla.gnome.org))
6. [Bug 511972] glibmm doesn't have an AsyncQueue class
(glibmm (bugzilla.gnome.org))
7. [Bug 514241] New: patch to add Gst::Buffer
(gnomemm (bugzilla.gnome.org))
----------------------------------------------------------------------
Message: 1
Date: Tue, 29 Jan 2008 05:19:07 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[EMAIL PROTECTED]>
Subject: [gtkmm bugzilla] [Bug 512717] New: ValueBase classes
"enhancements"
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]/>
Content-Type: text/plain; charset=utf-8
If you have any questions why you received this email, please see the text at
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at the end of this email. You can add comments to this bug at:
http://bugzilla.gnome.org/show_bug.cgi?id=512717
glibmm | general | Ver: 2.15.x
Summary: ValueBase classes "enhancements"
Product: glibmm
Version: 2.15.x
Platform: Other
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: general
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
QAContact: [EMAIL PROTECTED]
GNOME version: 2.19/2.20
GNOME milestone: Unspecified
Working on the GStreamermm Structure class, I noticed that it has setters and
getters that set and return ValueBase objects for values which the underlying
GstStructure (from GStreamer) contains.
When looking at the getters, I thought that it'd be nice if these getters
simply returned a ValueBase instead of accepting a reference to the ValueBase
(in which the value is returned) and then returning a boolean telling if the
getters are successful in fetching the value.
To this end, I thought it'd really be nice if ValueBases could have a boolean
like operator telling if it has been validly set. I did some exploring and
found an interesting link explaining how to implement safe boolean operators
(http://www.artima.com/cppsource/safebool3.html) and adapted some of this
explanation to implement a boolean operator for the ValueBase class.
I also thought that making the ValueBase classes "semi-automatic" so that they
can be readily assigned to on declaration and in the course of a program
without having to initialize them before hand would be kind of handy, so in the
"set()" methods, I added two lines of code to make sure the Value class is
initialized before being set. I made all the ValueBase class descendants
except for the Value_Enum and Value_Flags semi-automatic because I found that
these last two cannot be automatically initialized.
The semi-automatic mechanism installed in the ValueBase classes does not affect
code that already use the ValueBase class. It is only triggered when setting
ValueBase classes that have not been initialized. If one is declared but never
initialized or set, warnings are generated as usual and initialization before
usage works just as it has before, so previous code never even notices the
difference.
Lastly, I implemented cast and equal operators for easy syntactic usage in
expressions. The cast operators are very useful for using these Values as if
they were, in fact, the actual type that they "wrap". The pointer types also
have dereferencing operators while the RefPtr types only have the member
referencing (->) operator allowing similar RefPtr access to the underlying
class of the RefPtr (just as a RefPtr would).
I did find ambiguity problems with the stream insertion operator (<<) and the
Value classes. This is because a boolean operator is included in the ValueBase
class while the descendants have other cast operators that can be used in the
same context.
Overall, however, I think that these changes would be handy to enhance the
usage of the ValueBase classes so I was inclined to submit a patch. However, I
fully understand that there probably are an infinite number of things that I
don't have perspective on, so submitting this patch I fully understand that it
can be outright rejected because of something I haven't even considered. All
in all, if it is rejected, would be possible to keep the ValueBase operator? I
sincerely hope that some of this might be useful. Thanks.
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------------------------------
Message: 2
Date: Tue, 29 Jan 2008 05:20:18 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[EMAIL PROTECTED]>
Subject: [gtkmm bugzilla] [Bug 512717] ValueBase classes
"enhancements"
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=utf-8
If you have any questions why you received this email, please see the text at
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glibmm | general | Ver: 2.15.x
------- Comment #1 from Jos? Alburquerque 2008-01-29 05:20 UTC -------
Created an attachment (id=103931)
--> (http://bugzilla.gnome.org/attachment.cgi?id=103931&action=view)
ValueBase classes enhancements
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------------------------------
Message: 3
Date: Tue, 29 Jan 2008 06:58:05 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[EMAIL PROTECTED]>
Subject: [gtkmm bugzilla] [Bug 512717] ValueBase classes
"enhancements"
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=utf-8
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glibmm | general | Ver: 2.15.x
------- Comment #2 from Jos? Alburquerque 2008-01-29 06:58 UTC -------
Created an attachment (id=103936)
--> (http://bugzilla.gnome.org/attachment.cgi?id=103936&action=view)
Enhancements with ChangeLog
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------------------------------
Message: 4
Date: Tue, 29 Jan 2008 07:57:11 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[EMAIL PROTECTED]>
Subject: [gtkmm bugzilla] [Bug 511972] glibmm doesn't have an
AsyncQueue class
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=utf-8
If you have any questions why you received this email, please see the text at
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glibmm | threads | Ver: 2.15.x
[EMAIL PROTECTED] changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #103707|0 |1
is obsolete| |
Attachment #103709|0 |1
is obsolete| |
------- Comment #9 from [EMAIL PROTECTED] 2008-01-29 07:57 UTC -------
Created an attachment (id=103937)
--> (http://bugzilla.gnome.org/attachment.cgi?id=103937&action=view)
new version
this version tries to map Glibmm formatting, adds the correct #define , the GPL
header , english documentation...
it adds the possibility to specify your own container like std::queue does (by
default it uses std::deque like the standard says to do).
it removes the waiting_threads variable, as it's not necessary to use it, may
be a debug swith could it for testing purpose...
it let every pop methods untouched, to keep the interface easy to use, but a
reference passing result version can be added if you want to.
it still don't uses the glibmm exception infrastructure...let me know if it's
wanted.
if you want to discuss it in the mailing list, i don't have access to it, nor
the time to do it... but i'll try to keep an eye on this bug report .
--
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------------------------------
Message: 5
Date: Tue, 29 Jan 2008 08:11:16 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[EMAIL PROTECTED]>
Subject: [gtkmm bugzilla] [Bug 511972] glibmm doesn't have an
AsyncQueue class
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=utf-8
If you have any questions why you received this email, please see the text at
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glibmm | threads | Ver: 2.15.x
[EMAIL PROTECTED] changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #103937|0 |1
is obsolete| |
------- Comment #10 from [EMAIL PROTECTED] 2008-01-29 08:11 UTC -------
Created an attachment (id=103938)
--> (http://bugzilla.gnome.org/attachment.cgi?id=103938&action=view)
sorry, formatting was done with tabs...
--
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------------------------------
Message: 6
Date: Tue, 29 Jan 2008 08:32:07 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[EMAIL PROTECTED]>
Subject: [gtkmm bugzilla] [Bug 511972] glibmm doesn't have an
AsyncQueue class
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=utf-8
If you have any questions why you received this email, please see the text at
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glibmm | threads | Ver: 2.15.x
[EMAIL PROTECTED] changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #103938|0 |1
is obsolete| |
------- Comment #11 from [EMAIL PROTECTED] 2008-01-29 08:32 UTC -------
Created an attachment (id=103939)
--> (http://bugzilla.gnome.org/attachment.cgi?id=103939&action=view)
template definition corrections
template forward definitions were not up to date.
--
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------------------------------
Message: 7
Date: Mon, 4 Feb 2008 09:30:39 +0000 (UTC)
From: "gnomemm (bugzilla.gnome.org)"
<[EMAIL PROTECTED]>
Subject: [gtkmm bugzilla] [Bug 514241] New: patch to add Gst::Buffer
To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]/>
Content-Type: text/plain; charset=utf-8
If you have any questions why you received this email, please see the text at
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at the end of this email. You can add comments to this bug at:
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gnomemm | gstreamermm | Ver: unspecified
Summary: patch to add Gst::Buffer
Product: gnomemm
Version: unspecified
Platform: Other
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: gstreamermm
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
QAContact: [EMAIL PROTECTED]
GNOME version: Unspecified
GNOME milestone: Unspecified
The patch adds Gst::Buffer
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------------------------------
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