commit 888e39055f2067a6a45c21926dc32bf6b9cd3e50
parent 671706e9e5aa90b95f483c36fd9b6cc7ab5d0646
Author: Christian Grothoff <christian@grothoff.org>
Date: Fri, 26 Apr 2013 09:00:01 +0000
adding support for quiesce
Diffstat:
6 files changed, 198 insertions(+), 194 deletions(-)
diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Apr 25 13:08:10 CEST 2013
+ Added 'MHD_quiesce_daemon' to allow application to stop
+ processing new incoming connections while finishing
+ ongoing requests. -CG
+
Sun Mar 31 23:17:13 CEST 2013
Added MHD demonstration code 'src/examples/demo.c'. -CG
diff --git a/doc/libmicrohttpd.texi b/doc/libmicrohttpd.texi
@@ -1086,6 +1086,25 @@ Return @code{NULL} on error, handle to daemon on success.
@end deftypefun
+@deftypefun int MHD_quiesce_daemon (struct MHD_Daemon *daemon)
+Stop accepting connections from the listening socket. Allows clients
+to continue processing, but stops accepting new connections. Note
+that the caller is responsible for closing the returned socket;
+however, if MHD is run using threads (anything but external select
+mode), it must not be closed until AFTER @code{MHD_stop_daemon} has
+been called (as it is theoretically possible that an existing thread
+is still using it).
+
+This function is useful in the special case that a listen socket
+is to be migrated to another process (i.e. a newer version of the
+HTTP server) while existing connections should continue to be
+processed until they are finished.
+
+Return @code{-1} on error (daemon not listening), the handle to the
+listen socket otherwise.
+@end deftypefun
+
+
@deftypefun void MHD_stop_daemon (struct MHD_Daemon *daemon)
Shutdown an HTTP daemon.
@end deftypefun
diff --git a/doc/texinfo.tex b/doc/texinfo.tex
@@ -3,7 +3,7 @@
% Load plain if necessary, i.e., if running under initex.
\expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
%
-\def\texinfoversion{2012-09-05.06}
+\def\texinfoversion{2012-03-11.15}
%
% Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
% 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
@@ -28,9 +28,9 @@
%
% Please try the latest version of texinfo.tex before submitting bug
% reports; you can get the latest version from:
-% http://ftp.gnu.org/gnu/texinfo/ (the Texinfo release area), or
-% http://ftpmirror.gnu.org/texinfo/ (same, via a mirror), or
-% http://www.gnu.org/software/texinfo/ (the Texinfo home page)
+% http://www.gnu.org/software/texinfo/ (the Texinfo home page), or
+% ftp://tug.org/tex/texinfo.tex
+% (and all CTAN mirrors, see http://www.ctan.org).
% The texinfo.tex in any given distribution could well be out
% of date, so if that's what you're using, please check.
%
@@ -594,7 +594,7 @@
\def\:{\spacefactor=1000 }
% @* forces a line break.
-\def\*{\unskip\hfil\break\hbox{}\ignorespaces}
+\def\*{\hfil\break\hbox{}\ignorespaces}
% @/ allows a line break.
\let\/=\allowbreak
@@ -1117,7 +1117,7 @@ where each line of input produces a line of output.}
% #1 is a control sequence in which to do the replacements,
% which we \xdef.
\def\txiescapepdf#1{%
- \ifx\pdfescapestring\thisisundefined
+ \ifx\pdfescapestring\relax
% No primitive available; should we give a warning or log?
% Many times it won't matter.
\else
@@ -1367,8 +1367,9 @@ output) for that.)}
\def\skipspaces#1{\def\PP{#1}\def\D{|}%
\ifx\PP\D\let\nextsp\relax
\else\let\nextsp\skipspaces
- \addtokens{\filename}{\PP}%
- \advance\filenamelength by 1
+ \ifx\p\space\else\addtokens{\filename}{\PP}%
+ \advance\filenamelength by 1
+ \fi
\fi
\nextsp}
\def\getfilename#1{%
@@ -1474,6 +1475,9 @@ output) for that.)}
\def\ttsl{\setfontstyle{ttsl}}
+% Default leading.
+\newdimen\textleading \textleading = 13.2pt
+
% Set the baselineskip to #1, and the lineskip and strut size
% correspondingly. There is no deep meaning behind these magic numbers
% used as factors; they just match (closely enough) what Knuth defined.
@@ -1485,7 +1489,6 @@ output) for that.)}
% can get a sort of poor man's double spacing by redefining this.
\def\baselinefactor{1}
%
-\newdimen\textleading
\def\setleading#1{%
\dimen0 = #1\relax
\normalbaselineskip = \baselinefactor\dimen0
@@ -1758,24 +1761,18 @@ end
\fi\fi
-% Set the font macro #1 to the font named \fontprefix#2.
+% Set the font macro #1 to the font named #2, adding on the
+% specified font prefix (normally `cm').
% #3 is the font's design size, #4 is a scale factor, #5 is the CMap
-% encoding (only OT1, OT1IT and OT1TT are allowed, or empty to omit).
-% Example:
-% #1 = \textrm
-% #2 = \rmshape
-% #3 = 10
-% #4 = \mainmagstep
-% #5 = OT1
-%
+% encoding (currently only OT1, OT1IT and OT1TT are allowed, pass
+% empty to omit).
\def\setfont#1#2#3#4#5{%
\font#1=\fontprefix#2#3 scaled #4
\csname cmap#5\endcsname#1%
}
% This is what gets called when #5 of \setfont is empty.
\let\cmap\gobble
-%
-% (end of cmaps)
+% emacs-page end of cmaps
% Use cm as the default font prefix.
% To specify the font prefix, you must define \fontprefix
@@ -1785,7 +1782,7 @@ end
\fi
% Support font families that don't use the same naming scheme as CM.
\def\rmshape{r}
-\def\rmbshape{bx} % where the normal face is bold
+\def\rmbshape{bx} %where the normal face is bold
\def\bfshape{b}
\def\bxshape{bx}
\def\ttshape{tt}
@@ -1800,7 +1797,8 @@ end
\def\scshape{csc}
\def\scbshape{csc}
-% Definitions for a main text size of 11pt. (The default in Texinfo.)
+% Definitions for a main text size of 11pt. This is the default in
+% Texinfo.
%
\def\definetextfontsizexi{%
% Text fonts (11.2pt, magstep1).
@@ -1925,7 +1923,7 @@ end
\textleading = 13.2pt % line spacing for 11pt CM
\textfonts % reset the current fonts
\rm
-} % end of 11pt text font size definitions, \definetextfontsizexi
+} % end of 11pt text font size definitions
% Definitions to make the main text be 10pt Computer Modern, with
@@ -2057,7 +2055,7 @@ end
\textleading = 12pt % line spacing for 10pt CM
\textfonts % reset the current fonts
\rm
-} % end of 10pt text font size definitions, \definetextfontsizex
+} % end of 10pt text font size definitions
% We provide the user-level command
@@ -2448,12 +2446,34 @@ end
% @samp.
\def\samp#1{{\setupmarkupstyle{samp}\lq\tclose{#1}\rq\null}}
-% @indicateurl is \samp, that is, with quotes.
-\let\indicateurl=\samp
+% definition of @key that produces a lozenge. Doesn't adjust to text size.
+%\setfont\keyrm\rmshape{8}{1000}{OT1}
+%\font\keysy=cmsy9
+%\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
+% \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
+% \vbox{\hrule\kern-0.4pt
+% \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
+% \kern-0.4pt\hrule}%
+% \kern-.06em\raise0.4pt\hbox{\angleright}}}}
+
+% definition of @key with no lozenge. If the current font is already
+% monospace, don't change it; that way, we respect @kbdinputstyle. But
+% if it isn't monospace, then use \tt.
+%
+\def\key#1{{\setupmarkupstyle{key}%
+ \nohyphenation
+ \ifmonospace\else\tt\fi
+ #1}\null}
+
+% ctrl is no longer a Texinfo command.
+\def\ctrl #1{{\tt \rawbackslash \hat}#1}
+
+% @file, @option are the same as @samp.
+\let\file=\samp
+\let\option=\samp
-% @code (and similar) prints in typewriter, but with spaces the same
-% size as normal in the surrounding text, without hyphenation, etc.
-% This is a subroutine for that.
+% @code is a modification of @t,
+% which makes spaces the same size as normal in the surrounding text.
\def\tclose#1{%
{%
% Change normal interword space to be same as for the current font.
@@ -2478,7 +2498,7 @@ end
% We *must* turn on hyphenation at `-' and `_' in @code.
% Otherwise, it is too hard to avoid overfull hboxes
% in the Emacs manual, the Library manual, etc.
-%
+
% Unfortunately, TeX uses one parameter (\hyphenchar) to control
% both hyphenation at - and hyphenation within words.
% We must therefore turn them both off (\tclose does that)
@@ -2542,13 +2562,6 @@ end
\fi\fi
}
-% For @command, @env, @file, @option quotes seem unnecessary,
-% so use \code rather than \samp.
-\let\command=\code
-\let\env=\code
-\let\file=\code
-\let\option=\code
-
% @uref (abbreviation for `urlref') takes an optional (comma-separated)
% second argument specifying the text to display and an optional third
% arg as text to display instead of (rather than in addition to) the url
@@ -2728,24 +2741,10 @@ end
\else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi
\else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi}
-% definition of @key that produces a lozenge. Doesn't adjust to text size.
-%\setfont\keyrm\rmshape{8}{1000}{OT1}
-%\font\keysy=cmsy9
-%\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
-% \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
-% \vbox{\hrule\kern-0.4pt
-% \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
-% \kern-0.4pt\hrule}%
-% \kern-.06em\raise0.4pt\hbox{\angleright}}}}
-
-% definition of @key with no lozenge. If the current font is already
-% monospace, don't change it; that way, we respect @kbdinputstyle. But
-% if it isn't monospace, then use \tt.
-%
-\def\key#1{{\setupmarkupstyle{key}%
- \nohyphenation
- \ifmonospace\else\tt\fi
- #1}\null}
+% For @indicateurl, @env, @command quotes seem unnecessary, so use \code.
+\let\indicateurl=\code
+\let\env=\code
+\let\command=\code
% @clicksequence{File @click{} Open ...}
\def\clicksequence#1{\begingroup #1\endgroup}
@@ -2853,9 +2852,6 @@ end
}
}
-% ctrl is no longer a Texinfo command, but leave this definition for fun.
-\def\ctrl #1{{\tt \rawbackslash \hat}#1}
-
% @inlinefmt{FMTNAME,PROCESSED-TEXT} and @inlineraw{FMTNAME,RAW-TEXT}.
% Ignore unless FMTNAME == tex; then it is like @iftex and @tex,
% except specified as a normal braced arg, so no newlines to worry about.
@@ -3146,17 +3142,12 @@ end
% hopefully nobody will notice/care.
\edef\ecsize{\csname\curfontsize ecsize\endcsname}%
\edef\nominalsize{\csname\curfontsize nominalsize\endcsname}%
- \ifmonospace
- % typewriter:
- \font\thisecfont = ectt\ecsize \space at \nominalsize
+ \ifx\curfontstyle\bfstylename
+ % bold:
+ \font\thisecfont = ecb\ifusingit{i}{x}\ecsize \space at \nominalsize
\else
- \ifx\curfontstyle\bfstylename
- % bold:
- \font\thisecfont = ecb\ifusingit{i}{x}\ecsize \space at \nominalsize
- \else
- % regular:
- \font\thisecfont = ec\ifusingit{ti}{rm}\ecsize \space at \nominalsize
- \fi
+ % regular:
+ \font\thisecfont = ec\ifusingit{ti}{rm}\ecsize \space at \nominalsize
\fi
\thisecfont
}
@@ -3269,20 +3260,6 @@ end
\finishedtitlepagetrue
}
-% Settings used for typesetting titles: no hyphenation, no indentation,
-% don't worry much about spacing, ragged right. This should be used
-% inside a \vbox, and fonts need to be set appropriately first. Because
-% it is always used for titles, nothing else, we call \rmisbold. \par
-% should be specified before the end of the \vbox, since a vbox is a group.
-%
-\def\raggedtitlesettings{%
- \rmisbold
- \hyphenpenalty=10000
- \parindent=0pt
- \tolerance=5000
- \ptexraggedright
-}
-
% Macros to be used within @titlepage:
\let\subtitlerm=\tenrm
@@ -3290,7 +3267,7 @@ end
\parseargdef\title{%
\checkenv\titlepage
- \vbox{\titlefonts \raggedtitlesettings #1\par}%
+ \leftline{\titlefonts\rmisbold #1}
% print a rule at the page bottom also.
\finishedtitlepagefalse
\vskip4pt \hrule height 4pt width \hsize \vskip4pt
@@ -4227,7 +4204,7 @@ end
}
\def\ifsetfail{\doignore{ifset}}
-% @ifclear VAR ... @end executes the `...' iff VAR has never been
+% @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
% defined with @set, or has been undefined with @clear.
%
% The `\else' inside the `\doifset' parameter is a trick to reuse the
@@ -4238,35 +4215,6 @@ end
\def\ifclear{\parsearg{\doifset{\else \let\next=\ifclearfail}}}
\def\ifclearfail{\doignore{ifclear}}
-% @ifcommandisdefined CMD ... @end executes the `...' if CMD (written
-% without the @) is in fact defined. We can only feasibly check at the
-% TeX level, so something like `mathcode' is going to considered
-% defined even though it is not a Texinfo command.
-%
-\makecond{ifcommanddefined}
-\def\ifcommanddefined{\parsearg{\doifcmddefined{\let\next=\ifcmddefinedfail}}}
-%
-\def\doifcmddefined#1#2{{%
- \makevalueexpandable
- \let\next=\empty
- \expandafter\ifx\csname #2\endcsname\relax
- #1% If not defined, \let\next as above.
- \fi
- \expandafter
- }\next
-}
-\def\ifcmddefinedfail{\doignore{ifcommanddefined}}
-
-% @ifcommandnotdefined CMD ... handlded similar to @ifclear above.
-\makecond{ifcommandnotdefined}
-\def\ifcommandnotdefined{%
- \parsearg{\doifcmddefined{\else \let\next=\ifcmdnotdefinedfail}}}
-\def\ifcmdnotdefinedfail{\doignore{ifcommandnotdefined}}
-
-% Set the `txicommandconditionals' variable, so documents have a way to
-% test if the @ifcommand...defined conditionals are available.
-\set txicommandconditionals
-
% @dircategory CATEGORY -- specify a category of the dir file
% which this file should belong to. Ignore this in TeX.
\let\dircategory=\comment
@@ -4503,7 +4451,6 @@ end
\definedummyword\guillemetright
\definedummyword\guilsinglleft
\definedummyword\guilsinglright
- \definedummyword\lbracechar
\definedummyword\leq
\definedummyword\minus
\definedummyword\ogonek
@@ -4516,7 +4463,6 @@ end
\definedummyword\quoteleft
\definedummyword\quoteright
\definedummyword\quotesinglbase
- \definedummyword\rbracechar
\definedummyword\result
\definedummyword\textdegree
%
@@ -4568,7 +4514,6 @@ end
\definedummyword\t
%
% Commands that take arguments.
- \definedummyword\abbr
\definedummyword\acronym
\definedummyword\anchor
\definedummyword\cite
@@ -4580,9 +4525,7 @@ end
\definedummyword\emph
\definedummyword\env
\definedummyword\file
- \definedummyword\image
\definedummyword\indicateurl
- \definedummyword\inforef
\definedummyword\kbd
\definedummyword\key
\definedummyword\math
@@ -4629,10 +4572,7 @@ end
% content at all. So for index sorting, we map @{ and @} to strings
% starting with |, since that ASCII character is between ASCII { and }.
\def\{{|a}%
- \def\lbracechar{|a}%
- %
\def\}{|b}%
- \def\rbracechar{|b}%
%
% Non-English letters.
\def\AA{AA}%
@@ -5593,6 +5533,14 @@ end
% Define @majorheading, @heading and @subheading
+% NOTE on use of \vbox for chapter headings, section headings, and such:
+% 1) We use \vbox rather than the earlier \line to permit
+% overlong headings to fold.
+% 2) \hyphenpenalty is set to 10000 because hyphenation in a
+% heading is obnoxious; this forbids it.
+% 3) Likewise, headings look best if no \parindent is used, and
+% if justification is not attempted. Hence \raggedright.
+
\def\majorheading{%
{\advance\chapheadingskip by 10pt \chapbreak }%
\parsearg\chapheadingzzz
@@ -5600,8 +5548,10 @@ end
\def\chapheading{\chapbreak \parsearg\chapheadingzzz}
\def\chapheadingzzz#1{%
- \vbox{\chapfonts \raggedtitlesettings #1\par}%
- \nobreak\bigskip \nobreak
+ {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt\ptexraggedright
+ \rmisbold #1\hfill}}%
+ \bigskip \par\penalty 200\relax
\suppressfirstparagraphindent
}
@@ -5760,7 +5710,8 @@ end
%
% Typeset the actual heading.
\nobreak % Avoid page breaks at the interline glue.
- \vbox{\raggedtitlesettings \hangindent=\wd0 \centerparametersmaybe
+ \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \ptexraggedright
+ \hangindent=\wd0 \centerparametersmaybe
\unhbox0 #1\par}%
}%
\nobreak\bigskip % no page break after a chapter title
@@ -5782,18 +5733,18 @@ end
\def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
%
\def\unnchfopen #1{%
- \chapoddpage
- \vbox{\chapfonts \raggedtitlesettings #1\par}%
- \nobreak\bigskip\nobreak
+\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt\ptexraggedright
+ \rmisbold #1\hfill}}\bigskip \par\nobreak
}
\def\chfopen #1#2{\chapoddpage {\chapfonts
\vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
\par\penalty 5000 %
}
\def\centerchfopen #1{%
- \chapoddpage
- \vbox{\chapfonts \raggedtitlesettings \hfill #1\hfill}%
- \nobreak\bigskip \nobreak
+\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt
+ \hfill {\rmisbold #1}\hfill}}\bigskip \par\nobreak
}
\def\CHAPFopen{%
\global\let\chapmacro=\chfopen
@@ -7856,7 +7807,7 @@ end
\fi\fi
}
-%
+
% @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is
% the node name, #2 the name of the Info cross-reference, #3 the printed
% node name, #4 the name of the Info file, #5 the name of the printed
@@ -7866,21 +7817,16 @@ end
\def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]}
\def\ref#1{\xrefX[#1,,,,,,,]}
%
-\newbox\toprefbox
+\newbox\topbox
\newbox\printedrefnamebox
-\newbox\infofilenamebox
\newbox\printedmanualbox
%
\def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup
\unsepspaces
%
- % Get args without leading/trailing spaces.
\def\printedrefname{\ignorespaces #3}%
\setbox\printedrefnamebox = \hbox{\printedrefname\unskip}%
%
- \def\infofilename{\ignorespaces #4}%
- \setbox\infofilenamebox = \hbox{\infofilename\unskip}%
- %
\def\printedmanual{\ignorespaces #5}%
\setbox\printedmanualbox = \hbox{\printedmanual\unskip}%
%
@@ -7915,18 +7861,11 @@ end
\turnoffactive
\makevalueexpandable
% This expands tokens, so do it after making catcode changes, so _
- % etc. don't get their TeX definitions. This ignores all spaces in
- % #4, including (wrongly) those in the middle of the filename.
+ % etc. don't get their TeX definitions.
\getfilename{#4}%
%
- % This (wrongly) does not take account of leading or trailing
- % spaces in #1, which should be ignored.
\edef\pdfxrefdest{#1}%
- \ifx\pdfxrefdest\empty
- \def\pdfxrefdest{Top}% no empty targets
- \else
- \txiescapepdf\pdfxrefdest % escape PDF special chars
- \fi
+ \txiescapepdf\pdfxrefdest
%
\leavevmode
\startlink attr{/Border [0 0 0]}%
@@ -7959,7 +7898,7 @@ end
\printedrefname
\fi
%
- % If the user also gave the printed manual name (fifth arg), append
+ % if the user also gave the printed manual name (fifth arg), append
% "in MANUALNAME".
\ifdim \wd\printedmanualbox > 0pt
\space \putwordin{} \cite{\printedmanual}%
@@ -7974,20 +7913,32 @@ end
% this is a loss. Therefore, we give the text of the node name
% again, so it is as if TeX is seeing it for the first time.
%
+ % Cross-manual reference. Only include the "Section ``foo'' in" if
+ % the foo is neither missing or Top. Thus, @xref{,,,foo,The Foo Manual}
+ % outputs simply "see The Foo Manual".
\ifdim \wd\printedmanualbox > 0pt
- % Cross-manual reference with a printed manual name.
+ % What is the 7sp about? The idea is that we also want to omit
+ % the Section part if we would be printing "Top", since they are
+ % clearly trying to refer to the whole manual. But, this being
+ % TeX, we can't easily compare strings while ignoring the possible
+ % spaces before and after in the input. By adding the arbitrary
+ % 7sp, we make it much less likely that a real node name would
+ % happen to have the same width as "Top" (e.g., in a monospaced font).
+ % I hope it will never happen in practice.
%
- \crossmanualxref{\cite{\printedmanual\unskip}}%
- %
- \else\ifdim \wd\infofilenamebox > 0pt
- % Cross-manual reference with only an info filename (arg 4), no
- % printed manual name (arg 5). This is essentially the same as
- % the case above; we output the filename, since we have nothing else.
+ % For the same basic reason, we retypeset the "Top" at every
+ % reference, since the current font is indeterminate.
%
- \crossmanualxref{\code{\infofilename\unskip}}%
- %
+ \setbox\topbox = \hbox{Top\kern7sp}%
+ \setbox2 = \hbox{\ignorespaces \printedrefname \unskip \kern7sp}%
+ \ifdim \wd2 > 7sp
+ \ifdim \wd2 = \wd\topbox \else
+ \putwordSection{} ``\printedrefname'' \putwordin{}\space
+ \fi
+ \fi
+ \cite{\printedmanual}%
\else
- % Reference within this manual.
+ % Reference in this manual.
%
% _ (for example) has to be the character _ for the purposes of the
% control sequence corresponding to the node, but it has to expand
@@ -8008,37 +7959,11 @@ end
%
% output the `page 3'.
\turnoffactive \putwordpage\tie\refx{#1-pg}{}%
- \fi\fi
+ \fi
\fi
\endlink
\endgroup}
-% Output a cross-manual xref to #1. Used just above (twice).
-%
-% Only include the text "Section ``foo'' in" if the foo is neither
-% missing or Top. Thus, @xref{,,,foo,The Foo Manual} outputs simply
-% "see The Foo Manual", the idea being to refer to the whole manual.
-%
-% But, this being TeX, we can't easily compare our node name against the
-% string "Top" while ignoring the possible spaces before and after in
-% the input. By adding the arbitrary 7sp below, we make it much less
-% likely that a real node name would have the same width as "Top" (e.g.,
-% in a monospaced font). Hopefully it will never happen in practice.
-%
-% For the same basic reason, we retypeset the "Top" at every
-% reference, since the current font is indeterminate.
-%
-\def\crossmanualxref#1{%
- \setbox\toprefbox = \hbox{Top\kern7sp}%
- \setbox2 = \hbox{\ignorespaces \printedrefname \unskip \kern7sp}%
- \ifdim \wd2 > 7sp % nonempty?
- \ifdim \wd2 = \wd\toprefbox \else % same as Top?
- \putwordSection{} ``\printedrefname'' \putwordin{}\space
- \fi
- \fi
- #1%
-}
-
% This macro is called from \xrefX for the `[nodename]' part of xref
% output. It's a separate macro only so it can be changed more easily,
% since square brackets don't work well in some documents. Particularly
diff --git a/src/daemon/EXPORT.sym b/src/daemon/EXPORT.sym
@@ -22,6 +22,7 @@ MHD_get_response_headers
MHD_get_response_header
MHD_create_post_processor
MHD_post_process
+MHD_quiesce_daemon
MHD_destroy_post_processor
MHD_get_daemon_info
MHD_get_connection_info
diff --git a/src/daemon/daemon.c b/src/daemon/daemon.c
@@ -660,7 +660,7 @@ MHD_handle_connection (void *data)
#ifdef HAVE_POLL_H
else
{
- /* use poll */
+ /* use poll */
memset(&mp, 0, sizeof (struct MHD_Pollfd));
MHD_connection_get_pollfd(con, &mp);
memset(&p, 0, sizeof (p));
@@ -1137,11 +1137,14 @@ MHD_accept_connection (struct MHD_Daemon *daemon)
int s;
int flags;
int need_fcntl;
+ int fd;
addrlen = sizeof (addrstorage);
memset (addr, 0, sizeof (addrstorage));
+ if (-1 == (fd = daemon->socket_fd))
+ return MHD_NO;
#if HAVE_ACCEPT4
- s = accept4 (daemon->socket_fd, addr, &addrlen, SOCK_CLOEXEC);
+ s = accept4 (fd, addr, &addrlen, SOCK_CLOEXEC);
need_fcntl = MHD_NO;
#else
s = -1;
@@ -1149,7 +1152,7 @@ MHD_accept_connection (struct MHD_Daemon *daemon)
#endif
if (-1 == s)
{
- s = ACCEPT (daemon->socket_fd, addr, &addrlen);
+ s = ACCEPT (fd, addr, &addrlen);
need_fcntl = MHD_YES;
}
if ((-1 == s) || (addrlen <= 0))
@@ -1353,6 +1356,7 @@ MHD_run_from_select (struct MHD_Daemon *daemon,
const fd_set *except_fd_set)
{
int ds;
+ int tmp;
struct MHD_Connection *pos;
struct MHD_Connection *next;
@@ -1360,6 +1364,11 @@ MHD_run_from_select (struct MHD_Daemon *daemon,
if ( (-1 != (ds = daemon->socket_fd)) &&
(FD_ISSET (ds, read_fd_set)) )
MHD_accept_connection (daemon);
+ /* drain signaling pipe to avoid spinning select */
+ if ( (-1 != daemon->wpipe[0]) &&
+ (FD_ISSET (daemon->wpipe[0], read_fd_set)) )
+ (void) read (daemon->wpipe[0], &tmp, sizeof (tmp));
+
if (0 == (daemon->options & MHD_USE_THREAD_PER_CONNECTION))
{
/* do not have a thread per connection, process all connections now */
@@ -1753,6 +1762,34 @@ MHD_start_daemon (unsigned int options,
/**
+ * Stop accepting connections from the listening socket. Allows
+ * clients to continue processing, but stops accepting new
+ * connections. Note that the caller is responsible for closing the
+ * returned socket; however, if MHD is run using threads (anything but
+ * external select mode), it must not be closed until AFTER
+ * "MHD_stop_daemon" has been called (as it is theoretically possible
+ * that an existing thread is still using it).
+ *
+ * @param daemon daemon to stop accepting new connections for
+ * @return old listen socket on success, -1 if the daemon was
+ * already not listening anymore
+ */
+int
+MHD_quiesce_daemon (struct MHD_Daemon *daemon)
+{
+ unsigned int i;
+ int ret;
+
+ ret = daemon->socket_fd;
+ if (NULL != daemon->worker_pool)
+ for (i = 0; i < daemon->worker_pool_size; i++)
+ daemon->worker_pool[i].socket_fd = -1;
+ daemon->socket_fd = -1;
+ return ret;
+}
+
+
+/**
* Signature of the MHD custom logger function.
*
* @param cls closure
@@ -2659,7 +2696,7 @@ close_all_connections (struct MHD_Daemon *daemon)
for (pos = daemon->connections_head; NULL != pos; pos = pos->next)
SHUTDOWN (pos->socket_fd,
(pos->read_closed == MHD_YES) ? SHUT_WR : SHUT_RDWR);
- if (0 != pthread_mutex_unlock(&daemon->cleanup_connection_mutex))
+ if (0 != pthread_mutex_unlock (&daemon->cleanup_connection_mutex))
{
MHD_PANIC ("Failed to release cleanup mutex\n");
}
@@ -2729,8 +2766,9 @@ MHD_stop_daemon (struct MHD_Daemon *daemon)
#ifdef HAVE_LISTEN_SHUTDOWN
else
{
- /* fd must not be -1 here, otherwise we'd have used the wpipe */
- SHUTDOWN (fd, SHUT_RDWR);
+ /* fd might be -1 here due to 'MHD_quiesce_daemon' */
+ if (-1 != fd)
+ (void) SHUTDOWN (fd, SHUT_RDWR);
}
#endif
#if DEBUG_CLOSE
@@ -2770,7 +2808,7 @@ MHD_stop_daemon (struct MHD_Daemon *daemon)
}
close_all_connections (daemon);
if (-1 != fd)
- CLOSE (fd);
+ (void) CLOSE (fd);
/* TLS clean up */
#if HTTPS_SUPPORT
@@ -2791,10 +2829,9 @@ MHD_stop_daemon (struct MHD_Daemon *daemon)
if (-1 != daemon->wpipe[1])
{
- CLOSE (daemon->wpipe[0]);
- CLOSE (daemon->wpipe[1]);
+ (void) CLOSE (daemon->wpipe[0]);
+ (void) CLOSE (daemon->wpipe[1]);
}
-
free (daemon);
}
diff --git a/src/include/microhttpd.h b/src/include/microhttpd.h
@@ -1102,6 +1102,23 @@ MHD_start_daemon (unsigned int flags,
/**
+ * Stop accepting connections from the listening socket. Allows
+ * clients to continue processing, but stops accepting new
+ * connections. Note that the caller is responsible for closing the
+ * returned socket; however, if MHD is run using threads (anything but
+ * external select mode), it must not be closed until AFTER
+ * "MHD_stop_daemon" has been called (as it is theoretically possible
+ * that an existing thread is still using it).
+ *
+ * @param daemon daemon to stop accepting new connections for
+ * @return old listen socket on success, -1 if the daemon was
+ * already not listening anymore
+ */
+int
+MHD_quiesce_daemon (struct MHD_Daemon *daemon);
+
+
+/**
* Shutdown an http daemon.
*
* @param daemon daemon to stop
