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* perlipc: #109408Brian Fraser2012-06-271-12/+9
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* perlipc typo fixes, reported by Linda Walsh (RT#113556)Jesse Luehrs2012-06-171-3/+3
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* Change a semicolon to a colon. This is necessary for the shared mem example ↵Peter Martini2011-11-271-1/+1
| | | | to compile
* [RT #36079] Convert ` to '.jkeenan2011-11-221-3/+3
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* Doc patch to perlipcLeon Timmermans2011-09-111-89/+30
| | | | | | | | | | | | | | | | | 1. I've removed some erroneous code regarding signal names (it doesn't handle signal aliases) with a reference to a module that does handle it correctly. 2. Removed the sample on temporary signal ignoring; this is not likely to do what users want it to do. Possibly this should be replaced by a discussion on sigprocmask & friends, but perhaps we can skip in altogether 3. Corrected the discussion on permissions to take the difference between real, effective and saved UIDs into account. 4. Removed all mention of the SysV signaling issue. This was rather relevant when perlipc was written 15 years ago but it isn't anymore nowadays. 5. Removed the suggestion that you can longjmp out of a signal handler (see CERT's SIG32-C).
* Fix typos in pod/*Peter J. Acklam) (via RT2011-01-071-1/+1
| | | | | | | # New Ticket Created by (Peter J. Acklam) # Please include the string: [perl #81906] # in the subject line of all future correspondence about this issue. # <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=81906 >
* in perlipc, 'named pipes' was in signals sectionDavid Mitchell2010-11-291-54/+54
| | | | | Move the '=head1 Named Pipes' section down so that it's no longer nested, cuckoo-like, in the middle of the '=head1 Signals' section.
* Make PerlIO marginally reentrantDavid Mitchell2010-11-261-0/+6
| | | | | | | | | | | | | | | | | | | | | | Currently if an operation on a file handle is interrupted, and if the signal handler accesses that same file handle (e.g. closes it), then perl will crash. See [perl #75556]. This commit provides some basic infrastructure to avoid segfaults. Basically it adds a lock count field to each handle (by re-purposing the unused flags field in the PL_perlio array), then each time a signal handler is called, the count is incremented. Then various parts of PerlIO use a positive count to change behaviour. Most importantly, when layers are popped, the PerlIOl structure is cleared, but not freed, and is left in the chain of layers. This means that callers still holding pointers to the various layers won't access freed structures. It does however mean that PerlIOl structs may be leaked, and possibly slots in PL_perlio. But this is better than crashing. Not much has been done to give sensible behaviour on re-entrancy; for example, a buffer that has already been written once might get written again. Fixing this sort of thing would require a large-scale audit of perlio.c.
* One more typo, reported by H.Merijn BrandAbigail2010-11-091-1/+1
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* Some typo fixes reported by Tom ChristiansenAbigail2010-11-091-3/+3
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* authorial perlipc editTom Christiansen2010-11-081-555/+585
| | | | | | | | | | | | Looking through perlipc to make little fixes, it quickly became clear to me that it had been patched with code by people with a Perl coding style, and sometimes with an English language style, both very different to my own. This made it seem like an old patchwork tattercloth that didn't fit together very well. It was confusing and detracted from the overall message. I've tried to fix all this. I started with a recent git pull and edited. The result is something that is once again internally self-consistent.
* perlipc: Convert tabs to spaces.Shlomi Fish2010-10-231-237/+237
| | | | Signed-off-by: David Golden <dagolden@cpan.org>
* perlipc: fix bug in exampleDavid Golden2010-10-231-0/+2
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* Attempt at improving the perlipc docsMaik Hentsche2010-06-151-1/+37
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* * Em dash cleanup in pod/brian d foy2010-01-131-2/+2
| | | | | | | | | | | | | I looked at all the instances of spaces around -- and in most cases converted the sentences to use more appropriate punctuation. In general, the -- in the perl docs seem to be there only to make really complicated and really long sentences. I didn't look at the closed em-dashes. They probably have the same sentence-complexity problem. I left some open em-dashes in place. Those are the ones used in lists.
* [perl #71924] shmget/semget may return zero as valid idRafael Garcia-Suarez2010-01-101-2/+2
| | | | Documentation in perlipc thus fixed by using // instead of ||
* PATCH: minor typo cleanup of pod/ directoryTom Christiansen2010-01-051-1/+1
| | | | | | | | | | | | | | These are all in the pod/ directory, and only the first is a code fix. There was also a single lingering ISO 8859-1 encoding that missed the UTF-8 upconvert. The rest are cleanups for typos, some of which seem to have been around for a rather long time: spelling errors, incorrect possessives, and extra, missing, or duplicated words. If you actually read through, I bet you'll realize what sparked this. :) --tom Signed-off-by: Abigail <abigail@abigail.be>
* Applied a patch from David Fifield to fix an error message in perlipc.podJesse Vincent2009-10-101-1/+1
| | | | | | | Subject: Comment doesn't match code in perlipc.pod. Date: Thu, 30 Jul 2009 07:31:48 -0600 To: perlbug@perl.org From: David Fifield <david@bamsoftware.com>
* pod/perlipc.pod: add some hints on avoiding pipe deadlocksSam Vilain2009-08-061-0/+86
| | | | | Tracking down deadlocks when using pipes for IPC can be hard, so put even more notes about gotchas in this section of perlipc.
* Capitalize "SysV" correctlyAbigail2009-01-131-4/+4
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* setsid() returns -1 on failure.Steve Peters2008-12-021-1/+1
| | | p4raw-id: //depot/perl@34976
* [perl #54424] perlipc mistype andrew@sundale.net2008-06-011-1/+1
| | | | | | From: andrew@sundale.net (via RT) <perlbug-followup@perl.org> Message-ID: <rt-3.6.HEAD-11257-1211174406-1790.54424-75-0@perl.org> p4raw-id: //depot/perl@33977
* POD cleanupsDavid Landgren2007-10-041-1/+1
| | | | | Message-ID: <46FD4B30.9070802@landgren.net> p4raw-id: //depot/perl@32026
* Misc. L<> fixes in core docs : don't link to man pages;Rafael Garcia-Suarez2007-03-221-1/+1
| | | | | provide full urls when linking to web sites. p4raw-id: //depot/perl@30688
* Mention Perl::Unsafe::Signals in the core docs en passant.Rafael Garcia-Suarez2007-03-091-0/+4
| | | p4raw-id: //depot/perl@30525
* Update descriptions of long-running ops and non-deferrableCraig A. Berry2007-02-241-17/+24
| | | | | signals in perlipc.pod. p4raw-id: //depot/perl@30392
* [perl #39835] Patch for perlipc.pod to update TCP server example wrt safe ↵Andy Wardley2006-07-271-48/+72
| | | | | | | | signals and accept() From: Andy Wardley (via RT) <perlbug-followup@perl.org> Message-ID: <rt-3.6.HEAD-20371-1152897103-1865.39835-75-0@perl.org> p4raw-id: //depot/perl@28622
* SysV IPCJarkko Hietaniemi2006-05-261-5/+5
| | | | | Message-ID: <4475D20D.9010600@gmail.com> p4raw-id: //depot/perl@28313
* remove whitespace preceding semicolon in docsSteven Schubiger2005-11-101-2/+2
| | | | | Message-ID: <20051031214827.GH24416@accognoscere.homeunix.org> p4raw-id: //depot/perl@26073
* perlipc.pod: mkfifo()Alexey Tourbin2005-06-121-4/+9
| | | | | Message-ID: <20050611122656.GC8181@solemn.turbinal.org> p4raw-id: //depot/perl@24807
* Quotes in pod/*.podAndy Lester2005-06-031-2/+2
| | | | | Message-ID: <20050602211954.GA22107@petdance.com> p4raw-id: //depot/perl@24686
* perlipc typoBrendan O'Dea2004-12-131-1/+1
| | | | | Message-ID: <20041211232504.GA8380@londo.c47.org> p4raw-id: //depot/perl@23642
* [patch pod/perlipc] use POSIX; w/o () is a bad ideaStas Bekman2004-11-241-4/+9
| | | | | Message-ID: <41A4B5EA.3020804@stason.org> p4raw-id: //depot/perl@23533
* [perl #32419] Spelling fixes for perl@23492 Richard Soderberg2004-11-121-1/+1
| | | | | | From: Richard Soderberg (via RT) <perlbug-followup@perl.org> Message-ID: <rt-3.0.11-32419-100173.13.0717895191322@perl.org> p4raw-id: //depot/perl@23496
* Remove a warning against unsafe signals in perlipc.pod,Rafael Garcia-Suarez2004-06-111-9/+0
| | | | | now that we have "safe signals". p4raw-id: //depot/perl@22927
* [perl #28456] Typo in perlipc man page, and suggestions for sameAxel Boldt2004-04-211-1/+1
| | | | | | | From: Axel Boldt (via RT) <perlbug-followup@perl.org> Message-ID: <rt-3.0.8-28456-84424.10.5222745276547@perl.org> Date: 11 Apr 2004 13:08:17 -0000 p4raw-id: //depot/perl@22727
* Re: [perl #15063] /tmp issuesSolar Designer2004-02-011-2/+2
| | | | | | | Message-ID: <20040125222218.GA13499@openwall.com> Remove insecure usage of /tmp from code and documentation p4raw-id: //depot/perl@22258
* Re: pod cleanupRonald J. Kimball2003-08-221-1/+1
| | | | | | | Message-ID: <20030821210917.GB164965@linguist.thayer.dartmouth.edu> (the pod part) p4raw-id: //depot/perl@20813
* perlipc thinko by John P. Linderman.Rafael Garcia-Suarez2003-08-121-2/+2
| | | p4raw-id: //depot/perl@20668
* Re: killing for vital signs [PATCH]John P. Linderman2003-08-101-1/+10
| | | | | | From: "John P. Linderman" <jpl@research.att.com> Message-Id: <200308101944.PAA96547@raptor.research.att.com> p4raw-id: //depot/perl@20607
* [DOCPATCH] %SIG and SA_RESTARTSteve Grazzini2003-07-211-0/+14
| | | | | Message-ID: <20030716125620.GA7022@grazzini.net> p4raw-id: //depot/perl@20178
* Better links.Jarkko Hietaniemi2003-07-021-1/+1
| | | p4raw-id: //depot/perl@19929
* Integrate from maint:Jarkko Hietaniemi2003-05-041-0/+12
| | | | | | | | | | [ 18568] Add the POSIX::sigaction() trick by Slaven Rezic for [perl #17341]. p4raw-link: @18568 on //depot/maint-5.8/perl: b63b4058977cacb57fd0a26b3de014d3f4ca3296 p4raw-id: //depot/perl@19406 p4raw-integrated: from //depot/maint-5.8/perl@18568 'merge in' pod/perlipc.pod (@18197..) pod/perlfunc.pod (@18379..)
* Few more words about safe/unsafe signals.Jarkko Hietaniemi2003-04-081-1/+1
| | | p4raw-id: //depot/perl@19164
* PERL_SIGNALS=unsafe enables the old unsafe/immediate signals.Jarkko Hietaniemi2003-02-241-1/+5
| | | p4raw-id: //depot/perl@18766
* Re: [perl #18626] bug in perlipc man pageSlaven Rezic2002-11-261-1/+1
| | | | | Message-ID: <87bs4gdohz.fsf@vran.herceg.de> p4raw-id: //depot/perl@18183
* perlipc.podSlaven Rezic2002-10-141-1/+1
| | | | | Message-Id: <200210131226.g9DCQQLN014591@vran.herceg.de> p4raw-id: //depot/perl@18017
* [DOC PATCH] perlipc.podArjen Laarhoven2002-08-081-4/+5
| | | | | Message-id: <20020806121601.GK40785@aragorn.noc.nl.demon.net> p4raw-id: //depot/perl@17700
* Small pod nits.Jarkko Hietaniemi2002-07-131-7/+7
| | | p4raw-id: //depot/perl@17525
* Further clarification about safe pipe opens.Rafael Garcia-Suarez2002-06-181-1/+2
| | | p4raw-id: //depot/perl@17285
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