subject:"\[1003.1\(2016\)\/Issue7\+TC2 0001151\]\: Introduce new signal SIGWINCH and functions tcsetsize\(\), tcgetsize\(\) to get\/set terminal window size"

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2020-04-23 Thread Austin Group Bug Tracker



The following issue has a resolution that has been APPLIED. 
== 
https://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Applied
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
https://austingroupbugs.net/view.php?id=1151#c3856 
Resolution: Accepted As Marked
Fixed in Version:   
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2020-04-23 13:45 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
related to  0001185 Additional 3rd option for getting line ...
== 

-- 
 (0004829) geoffclare (manager) - 2020-04-23 13:45
 https://austingroupbugs.net/view.php?id=1151#c4829 
-- 
When applying this bug I did not follow the instruction:A new
subsection named "The winsize structure" is added to the header termios.h
right after the section "The termios structure."to the
letter.

This is because several subsections following "The termios structure"
relate to fields in the termios structure. Instead, I added "The winsize
Structure" just before the "Attribute Selection" heading.
 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2019-02-25 Thread Austin Group Bug Tracker



The following issue has been set as RELATED TO issue 0001185. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Resolved
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
Resolution: Accepted As Marked
Fixed in Version:   
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-20 20:26 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
related to  0001185 Additional 3rd option for getting line ...
== 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c
   
2017-09-14 07:42 geoffclare Note Added: 0003854  
2017-10-05 16:30 nick   Note Added: 0003856  
2017-10-05 16:31 nick   Interp Status => --- 
2017-10-05 16:31 nick   Final Accepted Text   => See
http://austingroupbugs.net/view.php?id=1151#c3856
2017-10-05 16:31 nick   Status   New => Resolution
Proposed
2017-10-05 16:31 nick   Resolution   Open => Accepted As
Marked
2017-10-05 16:32 nick   Tag Attached: issue8

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-20 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Resolved
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
Resolution: Accepted As Marked
Fixed in Version:   
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-20 20:26 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003865) egmont (reporter) - 2017-10-20 20:26
 http://austingroupbugs.net/view.php?id=1151#c3865 
-- 
Allow me please to share a few thoughts/questions regarding
ws_xpixel/ws_ypixel. I'm glad these didn't make it to the standard for now;
if you ever plan to add them then please get back here and consider these
issues.

- Most graphical terminal emulators have some padding (usually 1px) around
the character cells. This is I believe both for aesthetical reasons as well
better/easier handling of mouse dragging outside the area etc.
Rxvt-unicode, pterm (putty) and st (suckless) set ws_[xy]pixel without this
value, xterm add the padding too. (See the matrix at
https://bugzilla.gnome.org/show_bug.cgi?id=782576.) Which one should be the
right behavior and why?

- xterm actually does not only add the padding, but also the scrollbar's
width to ws_xpixel. Is this correct then?

- How about other graphical UI elements? E.g. what if xterm had a tab bar
(like gnome-terminal, konsole etc. have), should it add that too? What if
it used CSD (client-side window decoration), would that also count?

- If the answer was "yes" throughout the previous questions, how about
tiling (a.k.a. paned) emulators such as Terminator and Tilix?

- If it's only the cell's pixels (not even the padding) then what's the
point in storing the entire window's dimensions and worrying about 16-bit
overflow, rather than introducing new fields for a single cell's dimensions
(as shorts)?

- Continuing the previous question, kitty
(https://github.com/kovidgoyal/kitty) is the only terminal emulator I've
seen so far that allows continuous resize, and splits the "extra" space
among some of its character cells, resulting in certain cells being 1px
taller or wider than others. Would this be the reason / use case for
denoting the entire terminal emulator's dimensions? Wouldn't it cause
problems that it's unknown how those extra pixels are distributed?

- What about headless terminal emulators, such as the libvterm library
(https://launchpad.net/libvterm), or screen or tmux in detached mode?

- What about terminal emulators that can have multiple views, potentially
at different pixel sizes? E.g. konsole allows to "split view" and zoom
independently, or screen and tmux allow to attach from multiple terminal
emulators that potentially have different fonts, or VTE (gnome-terminal and
friends) if it ever addresses
https://bugzilla.gnome.org/show_bug.cgi?id=103770.

- What about cool-retro-term where charcells aren't even rectangles?

- What about high DPI screens where some scaling is applied? I'm not
familiar with those, but as far as I know, there are at least 2
(pre-scaling and post-scaling), maybe even 3 definitions of "pixel". Which
one to use?

Taking one step back and looking at the broader picture: What's the purpose
of these variables? What use cases do you have in mind?

Unless these questions are clearly answered, unless a clear intent is seen

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-19 Thread Austin Group Bug Tracker


The following issue has been RESOLVED. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Resolved
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
Resolution: Accepted As Marked
Fixed in Version:   
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-19 15:21 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c
   
2017-09-14 07:42 geoffclare Note Added: 0003854  
2017-10-05 16:30 nick   Note Added: 0003856  
2017-10-05 16:31 nick   Interp Status => --- 
2017-10-05 16:31 nick   Final Accepted Text   => See
http://austingroupbugs.net/view.php?id=1151#c3856
2017-10-05 16:31 nick   Status   New => Resolution
Proposed
2017-10-05 16:31 nick   Resolution   Open => Accepted As
Marked
2017-10-05 16:32 nick   Tag Attached: issue8 
2017-10-05 16:33 nick   Status   Resolution Proposed

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-19 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Under Review
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-19 15:20 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003862) geoffclare (manager) - 2017-10-19 15:20
 http://austingroupbugs.net/view.php?id=1151#c3862 
-- 
http://austingroupbugs.net/view.php?id=1151#c3856 has been edited to change the
function names to tcgetwinsize()
and tcsetwinsize(). 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c
   
2017-09-14 07:42 geoffclare Note Added: 0003854  
2017-10-05 16:30 nick   Note Added: 0003856  
2017-10-05 16:31 nick   Interp Status => --- 
2017-10-05 16:31 nick   Final Accepted Text   => See
http://austingroupbugs.net/view.php?id=1151#c3856
2017-10-05

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-17 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Under Review
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-17 18:59 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003861) Clausecker (reporter) - 2017-10-17 18:59
 http://austingroupbugs.net/view.php?id=1151#c3861 
-- 
I agree with this proposal. I am again very sorry for bringing this up
again, the QNX functions didn't turn up in my initial search for these
function names. Another good reason for not adopting the QNX signatures is
that they do not easily extend to reporting the terminal resolution in
pixels if that is desired by implementations or a future issue of IEEE
1003.1. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c
   
2017-09-14 07:42 geoffclare Note Added: 0003854  
2017-10-05 16:30 nick   Note Added: 0003856

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-17 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Under Review
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-17 18:59 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003860) Clausecker (reporter) - 2017-10-17 18:59
 http://austingroupbugs.net/view.php?id=1151#c3860 
-- 
I agree with this proposal. I am again very sorry for bringing this up
again, the QNX functions didn't turn up in my initial search for these
function names. Another good reason for not adopting the QNX signatures is
that they do not easily extend to reporting the terminal resolution in
pixels if that is desired by implementations or a future issue of IEEE
1003.1. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c
   
2017-09-14 07:42 geoffclare Note Added: 0003854  
2017-10-05 16:30 nick   Note Added: 0003856

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-17 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Under Review
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-17 14:07 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003859) geoffclare (manager) - 2017-10-17 14:07
 http://austingroupbugs.net/view.php?id=1151#c3859 
-- 
I think it's not just the function signatures that are different in QNX. 
Their man page for tcsetsize() says it give an EACCES error if "The filedes
argument isn't associated with a controlling terminal", whereas we have
made the terminal access semantics for tcsetsize() the same as for
tcsetattr(), i.e. the SIGTTOU and EIO stuff.

Therefore I would prefer that we rename to tcgetwinsize() and
tcsetwinsize().

I think I like these names better anyway, as they go with the winsize
structure tag. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-16 Thread Austin Group Bug Tracker


The following issue has been REOPENED. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Under Review
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-16 19:30 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003858) Clausecker (reporter) - 2017-10-16 19:30
 http://austingroupbugs.net/view.php?id=1151#c3858 
-- 
See previous comment; QNX already has tcgetsize() and tcsetsize() with an
incompatible signature.  It might be a good idea to avoid the foreseeable
conflict by either adopting the QNX signature or by renaming the POSIX
function. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c
   
2017-09-14 07:42 geoffclare Note Added: 0003854  
2017-10-05 16:30 nick   Note Added: 0003856  
2017-10-05 16:31 nick   Interp Status => --- 
2017-10-05 16:31 nick

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-16 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Resolved
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
Resolution: Accepted As Marked
Fixed in Version:   
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-16 19:28 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003857) Clausecker (reporter) - 2017-10-16 19:28
 http://austingroupbugs.net/view.php?id=1151#c3857 
-- 
I'm terribly sorry to reopen this.  It turns out (as I didn't knew before)
that QNX already specifies tcgetsize with an incompatible signature:

   
http://www.qnx.com/developers/docs/6.5.0/index.jsp?topic=%2Fcom.qnx.doc.neutrino_lib_ref%2Ft%2Ftcgetsize.html

It might perhaps be a good idea to change the function names to something
like tcgetwinsize() and tcsetwinsize() to avoid this unfortunate name
collision before the function has been set into stone. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added:

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-05 Thread Austin Group Bug Tracker


The following issue has a PROPOSED RESOLUTION. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Resolution Proposed
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-05 16:31 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c
   
2017-09-14 07:42 geoffclare Note Added: 0003854  
2017-10-05 16:30 nick   Note Added: 0003856  
2017-10-05 16:31 nick   Interp Status => --- 
2017-10-05 16:31 nick   Final Accepted Text   => See
http://austingroupbugs.net/view.php?id=1151#c3856
2017-10-05 16:31 nick   Status   New => Resolution
Proposed
2017-10-05 16:31 nick   Resolution   Open => Accepted As
Marked
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-05 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-05 16:30 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003856) nick (manager) - 2017-10-05 16:30
 http://austingroupbugs.net/view.php?id=1151#c3856 
-- 
Extensions to termios.h
===

A new subsection named "The winsize structure" is added to the header
termios.h right after the section "The termios structure."

The winsize Structure
-

The  header shall define the winsize structure, which
shall
include at least the following members:

unsigned short  ws_row rows, in characters.
unsigned short  ws_col columns, in characters.

Furthermore, the list of declared functions shall be amended with the
following two entries:

int tcgetsize(int, struct winsize *);
int tcsetsize(int, const struct winsize *);

The section "CHANGE HISTORY" shall be amended appropriately.

Extensions to signal.h
==

The table of signals shall be amended with the following entry:

Signal: SIGWINCH
Default Action: I
Description:Terminal window size changed.

The section "CHANGE HISTORY" shall be amended appropriately.

On P201 L6734 (XBD 11.1.4) add tcsetsize() to the list of functions, after
tcsetpgrp().

Change P1410, L46849-46859 in the DESCRIPTION of open() from:
O_TTY_INITIf path identifies a terminal device
other than a pseudo-terminal, the
device is not already open in any process, and either O_TTY_INIT is set in
oflag or O_TTY_INIT has the value zero, open() shall set any
non-standard
termios structure terminal parameters to a state that provides
conforming
behavior; see XBD Section 11.2 (on page 205). It is unspecified whether
O_TTY_INIT has any effect if the device is already open in any process. If
path identifies the slave side of a pseudo-terminal that is not already
open
in any process, open() shall set any non-standard termios
structure
terminal parameters to a state that provides conforming behavior,
regardless of whether O_TTY_INIT is set. If path does not identify a
terminal device, O_TTY_INIT shall be ignored.
to:

O_TTY_INITIf path identifies a terminal device
other than a pseudo-terminal, the
device is not already open in any process, and either O_TTY_INIT is set in
oflag or O_TTY_INIT has the value zero, open() shall set any
non-standard
termios structure terminal parameters to a state that provides conforming
behavior see XBD Section 11.2 (on page 205) and initialize the
winsize
structure associated with the terminal to appropriate default settings.  It
is unspecified whether
O_TTY_INIT has any effect if the device is already open in any process. If
path identifies the slave side of a pseudo-terminal that is not already
open
in any process, open() shall set any non-standard termios
structure
terminal parameters to a state that provides conforming behavior and
initialize the
winsize structure associated with the terminal to appropriate
default settings,
regardless of whether O_TTY_INIT is set. If path does not identify a
terminal device, O_TTY_INIT shall be ignored.

New function "tcgetsize"


A new page "tcgetsize" shall be added to the

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-10-05 Thread Austin Group Bug Tracker


The following issue has been RESOLVED. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: Resolved
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text:See
http://austingroupbugs.net/view.php?id=1151#c3856 
Resolution: Accepted As Marked
Fixed in Version:   
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-10-05 16:33 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c
   
2017-09-14 07:42 geoffclare Note Added: 0003854  
2017-10-05 16:30 nick   Note Added: 0003856  
2017-10-05 16:31 nick   Interp Status => --- 
2017-10-05 16:31 nick   Final Accepted Text   => See
http://austingroupbugs.net/view.php?id=1151#c3856
2017-10-05 16:31 nick   Status   New => Resolution
Proposed
2017-10-05 16:31 nick   Resolution   Open => Accepted As
Marked
2017-10-05 16:32 nick   Tag Attached: issue8 
2017-10-05 16:33 nick   Status   Resolution Proposed

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-09-14 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-09-14 07:42 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003854) geoffclare (manager) - 2017-09-14 07:42
 http://austingroupbugs.net/view.php?id=1151#c3854 
-- 
I have attached an updated version of my example program as
sigwinch_example.2.c which omits the pixel fields. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820  
2017-09-14 07:41 geoffclare File Added: sigwinch_example.2.c
   
2017-09-14 07:42 geoffclare Note Added: 0003854  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-08-31 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-08-31 09:24 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003820) Clausecker (reporter) - 2017-08-31 09:24
 http://austingroupbugs.net/view.php?id=1151#c3820 
-- 
Attached as sigwinch-proposal.2.txt is an updated version of the proposal.
The following changes were made:

* As discussed in the telco, ws_xpixel and ws_ypixel were removed from the
proposal.
* Some typographic errors were corrected.
* The faulty example code for tcgetsize() was removed.
* An application usage not indicating correct use of tcgetsize() in
conjunction with SIGWINCH was added.
* The language about the delivery of SIGWINCH on call of tcsetsize() to
pseudo-terminals was removed and replaced by more general language.
* The prefix ws_ was marked as reserved.
* The functions tcsetsize() and tcgetsize() were marked as
async-signal-safe. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
2017-08-17 15:18 shware_systems Note Edited: 0003786 
2017-08-17 15:24 shware_systems Note Edited: 0003786 
2017-08-17 16:37 geoffclare Note Added: 0003818  
2017-08-31 09:19 Clausecker File Added: sigwinch-proposal.2.txt 
  
2017-08-31 09:24 Clausecker Note Added: 0003820

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-29 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-29 09:20 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003804) geoffclare (manager) - 2017-06-29 09:20
 http://austingroupbugs.net/view.php?id=1151#c3804 
-- 
I have created an updated example program with the points from
http://austingroupbugs.net/view.php?id=1151#c3791
fixed, and attached it as sigwinch_example.c

The code above the "cut here" line is for testing purposes, and wouldn't be
included in the standard.

It uses sig_atomic_t because that is what's in the current standard and
also because C11 lock-free atomic objects are optional in C11, so will
likely be optional in Issue 8. We could include a "Note to Reviewers" that
says the code should perhaps be updated to use C11 lock-free atomic objects
if they are mandated by Issue 8. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
2017-06-22 16:52 Don Cragun Note Added: 0003799  
2017-06-22 20:53 Clausecker Note Added: 0003800  
2017-06-29 09:12 geoffclare File Added: sigwinch_example.c  
 
2017-06-29 09:20 geoffclare Note Added: 0003804  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-22 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-22 20:53 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003800) Clausecker (reporter) - 2017-06-22 20:53
 http://austingroupbugs.net/view.php?id=1151#c3800 
-- 
> There are some signal-related problems with the example code.

It perhaps might be a good idea to omit the example then as I don't see how
to make the example be strictly correct without being overly complicated at
the same time.

>  Currently the standard does not require the master side to provide a
terminal interface nor require that it can have a controlling process or
process groups. All it requires of the master is (XBD 3.308) "Anything
written on the master device is presented to the slave as an input and
anything written on the slave device is presented as an input on the master
side."

Reading various kernel source again, this seems to be an exclusive Linux
feature. Perhaps this paragraph should be removed or replaced with a
paragraph allowing SIGWINCH to be delivered to an implementation defined
set of additional processes.

> Would the submitter of this bug please add a note with additional text
indicating the relationships between these pairs of values, an explanation
of what each pair of values is intended to do, and advice for readers of
the standard so they know which values to use and which values to modify
for the intended use cases of each pair of values?

This seems to differ between implementation. The general use case for
tcsetsize() seems to be for terminal emulators or the kernel's virtual
console to set the current terminal size. If I understood the Linux source
code correctly, the kernel ignores ws_xpixel and ws_ypixel and treats
zeroes as “no change”. Then it tries to find a video mode that has the
desired number of rows and columns and changes to that. In Solaris, I have
not found any place where a call to tcsetsize() causes a video mode change,
though some comments in common/io/ptem.c seem to suggest that it once did.
On FreeBSD I have not found such code either, though, changing the video
mode does change the terminal window size as reported by ioctl(TIOCGWINSZ,
...); and a SIGWINCH is delivered.

> If a user calls tcgetsize() and modifies ws_col and ws_row without
changing ws_[xy]pixel before calling tcsetsize() to alter those values, is
the system expected to modify the pixel values as a side effect of the
call? Should it return an error in this case since the pixel values no
longer correlate to the row and col values? Should an application always
set the pixel values to 0 if the row/col values are changed and set the
row/col values to 0 if the pixel values are changed?

Note that on real hardware, rows/columns do not determine resolution. It is
possible that the console driver supports more than one video mode for the
same number of rows and columns, e.g. two modes with different aspect
ratios. However, I do not know any implementation that considers
ws_[xy]pixel when setting the terminal window size. I wrote that it is
implementation defined if tcsetsize() actually changes the terminals
resolution (as opposed to merely adjusting the value returned by
tcgetsize()) because the behaviour differs

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-22 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-22 16:52 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003799) Don Cragun (manager) - 2017-06-22 16:52
 http://austingroupbugs.net/view.php?id=1151#c3799 
-- 
>From the text in this proposal, I don't understand whether a user or
application using these interfaces is expected to change the value assigned
to ws_xpixel at the same time the value of ws_row is changed (and vice
versa) and to change the value assigned to ws_ypixel at the same time the
value of ws_col is changed (and vice versa); whether a user or application
is only expected to use one pair of these values and never look at or
change the other set (and, if so, how to know which pair of values to use
to achieve whatever different affects are to be expected from using the two
pairs of values); nor whether or not there is any relationship between the
ws_row and ws_col values and the ws_[xy]pixel values.

If a user calls tcgetsize() and modifies ws_col and ws_row without changing
ws_[xy]pixel before calling tcsetsize() to alter those values, is the
system expected to modify the pixel values as a side effect of the call? 
Should it return an error in this case since the pixel values no longer
correlate to the row and col values?  Should an application always set the
pixel values to 0 if the row/col values are changed and set the row/col
values to 0 if the pixel values are changed?

Would the submitter of this bug please add a note with additional text
indicating the relationships between these pairs of values, an explanation
of what each pair of values is intended to do, and advice for readers of
the standard so they know which values to use and which values to modify
for the intended use cases of each pair of values? 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-22 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-22 16:45 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

-- 
 (0003798) geoffclare (manager) - 2017-06-22 16:45
 http://austingroupbugs.net/view.php?id=1151#c3798 
-- 
I see a problem with this part of the tcsetsize()
description:If the terminal is a slave pseudo-terminal, a
SIGWINCH shall also be delivered to the foreground process group of the
associated master pseudo-terminal. Similarly, if the terminal is a master
pseudo-terminal, a SIGWINCH shall be delivered to the foreground process
group of the associated slave pseudo-terminal.
Currently the standard does not require the master side to provide a
terminal interface nor require that it can have a controlling process or
process groups. All it requires of the master is (XBD 3.308) "Anything
written on the master device is presented to the slave as an input and
anything written on the slave device is presented as an input on the master
side."

How best to solve this depends on whether existing applications expect the
master side to be a terminal and for what reason (e.g. is it always just in
order to receive SIGWINCH when the slave side changes size). 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
2017-06-22 15:46 shware_systems Note Edited: 0003786 
2017-06-22 16:45 geoffclare Note Added: 0003798  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-22 Thread Austin Group Bug Tracker


The following issue has been set as RELATED TO issue 0001053. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-22 10:36 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
==
Relationships   ID  Summary
--
related to  0001053 Add a size mode to stty(1)
== 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
2017-06-22 15:04 geoffclare Relationship added   related to 0001053  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-22 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-22 10:36 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
== 

-- 
 (0003797) shware_systems (reporter) - 2017-06-22 10:36
 http://austingroupbugs.net/view.php?id=1151#c3797 
-- 
Renaming it is required by XSH 2.2.2 Namespaces, afaik, whatever problems
ensue. Last it was discussed new identifiers to be standardized were being
drawn from the namespace reserved to implementations by the C standard
since C89 or with prefixes / suffixes reserved by POSIX and C to
implementations, for additions to any of the standard libraries. 

That those platforms used a file-scope-visible identifier reserved to
applications with winsize is therefore their lookout, not the standard's,
and this is not an exception from before Issue 1 or C89 that I see. Whether
the interfaces should be posix_get/setsize() or posix_tcget/setsize() is
open to debate, perhaps. As proposed what's there is usable if controlled
by a visibility macro, to maintain backwards compatibility, but I forgot to
add that part to the note.

As apparently no platform is using winsize_t, using longs has no known
backwards compatibility considerations for this functionality. Imo bug
reports should have been filed over a decade ago with those platforms to
obsolete the interfaces where the structure members are shorts, as being
short sighted, for collateral issues. I agree use of an opaque type is
plausible, but this has the overhead of adding min and max constant
specifications too and still obsoletes that structure.

ENOTSUP being returned is a case where the signal would not be generated
because no attempt to access the device is being performed. This would be
different from a device accepting a set command that has only one valid
value, but may have side effects such as doing a form feed or clear screen,
so the signal should be generated. This would return EINVAL if another
value was passed in, I'd expect. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
2017-06-22 10:36 shware_systems Note Added: 0003797  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-20 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-20 09:22 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
== 

-- 
 (0003791) geoffclare (manager) - 2017-06-20 09:22
 http://austingroupbugs.net/view.php?id=1151#c3791 
-- 
There are some signal-related problems with the example code.

1. The winch_handler() function needs to save errno on entry and restore it
before returning.

2. Having the tcgetsize() call in winch_handler() write directly to the
static structure is undefined behaviour.  To meet the requirements of the
current standard it would have to write to a local structure and then copy
each member to a separate static value of type volatile sig_atomic_t.
However, since (if accepted) this will go into Issue 8 it may be better to
use the new C11 lock-free atomic objects.

3. In main() if a second SIGWINCH arrives during execution of the loop,
printf() could end up printing some old and some new values.  The code
should block SIGWINCH before the loop, and should use sigsuspend() instead
of pause().

In addition to correcting the example code, there should be some discussion
of points 2 and 3 in the APPLICATION USAGE section, plus a mention that
multi-threaded processes should use sigwait() instead of a signal handler. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
2017-06-20 09:22 geoffclare Note Added: 0003791  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-19 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-19 18:43 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
== 

-- 
 (0003789) Clausecker (reporter) - 2017-06-19 18:43
 http://austingroupbugs.net/view.php?id=1151#c3789 
-- 
struct winsize is the historic name for this structure, used since at least
1989. Renaming it might cause more problems than it solves. Note that
tcsetsize and tcgetsize aren't reserved by POSIX either (probably by
mistake).

Mandating unsigned long as the type for the members is a bad idea as this
contradicts existing implementations. All implementations I checked use
unsigned short for this type. As I already mentioned, introducing a typedef
windim_t might be a good compromise between compatibility and future
expansions.

I don't see how adding ENOTSUP might be a good idea. If the terminal's size
cannot be changed, an implementation may either decide to make size changes
have no effect (this might be a good idea for serial ports where the device
driver cannot change the terminal but e.g. login(8) might want to set up
the window size with information from the termcap database) or decide that
each other possible terminal size is invalid, returning EINVAL.

Changing the terminal size to itself should never cause an error, even on a
fixed-size terminal. Perhaps that invariant should be specified, too. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
2017-06-19 18:43 Clausecker Note Added: 0003789  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-19 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-19 18:11 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
== 

-- 
 (0003788) shware_systems (reporter) - 2017-06-19 18:11
 http://austingroupbugs.net/view.php?id=1151#c3788 
-- 
Because other applications may use winsize for other purposes, as struct
tag or other context. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
2017-06-19 18:11 shware_systems Note Added: 0003788  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-19 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-19 18:06 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
== 

-- 
 (0003787) EdSchouten (reporter) - 2017-06-19 18:06
 http://austingroupbugs.net/view.php?id=1151#c3787 
-- 
Why call it winsize_t, as opposed to 'struct winsize', which is the current
convention? 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
2017-06-19 17:33 shware_systems Note Edited: 0003786 
2017-06-19 18:06 EdSchouten Note Added: 0003787  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-19 Thread Austin Group Bug Tracker


A NOTE has been added to this issue. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-19 17:32 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
== 

-- 
 (0003786) shware_systems (reporter) - 2017-06-19 17:32
 http://austingroupbugs.net/view.php?id=1151#c3786 
-- 
Extensions to termios.h
===

A new subsection named "The winsize_t structure" is added to the header
termios.h right after the section "The termios structure." The type
"unsigned short" follows historical convention. Perhaps the committee
wishes to instead introduce appropriate integer types for the structure
members instead. This might be useful for implementations aiming to
support terminals with more than 65535 horizontal or vertical pixels.

The winsize_t Structure
-

The  header shall define the winsize_t structure, which
shall include at least the following members:

unsigned long ws_row rows, in characters.
unsigned long ws_col columns, in characters.
[XSI] or [UP]
unsigned long ws_xpixel horizontal size, in pixels, if supported.
unsigned long ws_ypixel vertical size, in pixels, if supported.
[x]

In all members named in this volume of POSIX.1 2008, a value of 0
shall indicate that the value is unknown.
=== 
Additional edits after as winsize an app reserved identifier, *_t standard
reserved. Use of termios as a type identifier a grandfathered allowance.
Changed to long as display arrays can have now over 65k chars or pixels
easily enough with UHD 4k resolutions, yet be logically a single terminal.
Option group added as base POSIX will still only require support for char
array or line oriented devices, not pixel or vector based. This was part of
Bug 1053 discussion. Moving any added support for vectors or pixels to the
base is an Issue 9 matter.
Errors for tcsetsize() is missing ENOSUP as a 'may fail' entry, also
discussed, for terminals that have fixed dimensions.
Believe additional text related to LINES and COLUMNS env. variables also
desirable. 

Issue History 
Date ModifiedUsername   FieldChange   
== 
2017-06-19 16:41 Clausecker New Issue
2017-06-19 16:41 Clausecker File Added: sigwinch-proposal.txt   

2017-06-19 16:41 Clausecker Name  => Robert Clausecker
2017-06-19 16:41 Clausecker Organization  => Fraunhofer Fokus
2017-06-19 16:41 Clausecker Section   => termios.h,
signal.h, 2.4.3 "Signal Actions", 11.2 "Parameters that Can be Set", new
sections tcgetsize and tcsetsize
2017-06-19 16:41 Clausecker Page Number   => 414, 333, 494, 212
2017-06-19 16:41 Clausecker Line Number   => 13877, 5,
16845–16879, 7040
2017-06-19 17:32 shware_systems Note Added: 0003786  
==

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

2017-06-19 Thread Austin Group Bug Tracker


The following issue has been SUBMITTED. 
== 
http://austingroupbugs.net/view.php?id=1151 
== 
Reported By:Clausecker
Assigned To:
== 
Project:1003.1(2016)/Issue7+TC2
Issue ID:   1151
Category:   System Interfaces
Type:   Enhancement Request
Severity:   Editorial
Priority:   normal
Status: New
Name:   Robert Clausecker 
Organization:   Fraunhofer Fokus 
User Reference:  
Section:termios.h, signal.h, 2.4.3 "Signal Actions", 11.2
"Parameters that Can be Set", new sections tcgetsize and tcsetsize 
Page Number:414, 333, 494, 212 
Line Number:13877, 5, 16845–16879, 7040 
Interp Status:  --- 
Final Accepted Text: 
== 
Date Submitted: 2017-06-19 16:41 UTC
Last Modified:  2017-06-19 16:41 UTC
== 
Summary:Introduce new signal SIGWINCH and functions
tcsetsize(), tcgetsize() to get/set terminal window size
Description: 
This proposal aims to standardize the broadly available signal SIGWINCH
and an extension to termios to query and set the terminal window size.
This extension is designed to be easily implementable in terms of the
TIOCGWINSZ and TIOCSWINSZ ioctl() calls available on many UNIX-like
systems.  This proposal does not contain an extension to the stty
utility as that is already considered in the scope of [bug 1053].  This
proposal introduces new functions tcgetsize() and tcsetsize() instead of
introducing the ioctl() calls TIOCGWINSZ and TIOCSWINSZ as POSIX
generally does not standardize the ioctl() except for the STREAMS
interface.

The desired action is rather large and posted both inline and as an
attachment to the bug report in case the bug tracker garbles it.

[bug 1053]: http://austingroupbugs.net/view.php?id=1053
Desired Action: 
Extensions to termios.h
===

A new subsection named "The winsize structure" is added to the header
termios.h right after the section "The termios structure."  The type
"unsigned short" follows historical convention.  Perhaps the comittee
wishes to instead introduce appropriate integer types for the structure
members instead.  This might be useful for implementations aiming to
support terminals with more than 65535 horizontal or vertical pixels.

The winsize Structure
-

The  header shall define the winsize structure, which
shall include at least the following members:

unsigned short  ws_row rows, in characters.
unsigned short  ws_col columns, in characters.
unsigned short  ws_xpixel  horizontal size, in pixels.
unsigned short  ws_ypixel  vertical size, in pixels.

In all members named in this volume of POSIX.1 2008, a value of 0
shall indicate that the value is unknown.

Furthermore, the list of declared functions shall be amended with the
following two entries:

int tcgetsize(int, struct winsize *);
int tcsetsize(int, const struct winsize *);

The section "CHANGE HISTORY" shall be amended appropriately.

Extensions to signal.h
==

The table of signals shall be amended with the following entry:

Signal: SIGWINCH
Default Action: I
Description:Window size changed.

The entry shall be added immediately after the entry for SIGUSR1.

The section "CHANGE HISTORY" shall be amended appropriately.

Extensions to §2.4.3 Signal Actions
===

The list of async-signal-safe functions shall be amended by the
functions tcgetsize() and tcsetsize().

New function "tcgetsize"


A new page "tcgetsize" shall be added to the list of system interfaces.
Its text is analogous to that of tcgetattr and shall be as follows:

NAME

tcgetsize -- get the window size associated with a terminal

SYNOPSIS

#include 

int tcgetsize(int fildes, struct winsize *winsize_p);

DESCRIPTION

The tcgetsize() function shall get the window size associated
with the terminal referred to by fildes and store them in the
winsize structure pointed to by winsize_p.  The fildes
argument is an open file descriptor associated with a terminal.
The winsize_p argument is a pointer to a winsize structure.

It is implementation defined whether the window size associated
with a terminal refers to the actual size and resolution of the
terminal connected to the communication port

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

[1003.1(2016)/Issue7+TC2 0001151]: Introduce new signal SIGWINCH and functions tcsetsize(), tcgetsize() to get/set terminal window size

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