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@q animctrl.web @> |
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@q Created by Laurence D. Finston (LDF) 2005.05.08.@> |
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@q * (1) Copyright and License.@> |
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@q This file is part of GNU 3DLDF, a package for three-dimensional drawing. @> |
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@q Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, @> |
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@q 2011 The Free Software Foundation @> |
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@q GNU 3DLDF is free software; you can redistribute it and/or modify @> |
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@q it under the terms of the GNU General Public License as published by @> |
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@q the Free Software Foundation; either version 3 of the License, or @> |
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@q (at your option) any later version. @> |
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@q GNU 3DLDF is distributed in the hope that it will be useful, @> |
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@q but WITHOUT ANY WARRANTY; without even the implied warranty of @> |
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@q MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the @> |
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@q GNU General Public License for more details. @> |
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@q You should have received a copy of the GNU General Public License @> |
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@q along with GNU 3DLDF; if not, write to the Free Software @> |
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@q Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA@> |
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@q GNU 3DLDF is a GNU package. @> |
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@q It is part of the GNU Project of the @> |
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@q Free Software Foundation @> |
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@q and is published under the GNU General Public License. @> |
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@q See the website http://www.gnu.org @> |
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@q for more information. @> |
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@q GNU 3DLDF is available for downloading from @> |
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@q http://www.gnu.org/software/3dldf/LDF.html.@> |
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@q ("@@" stands for a single at-sign in the following paragraph.) @> |
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@q Please send bug reports to Laurence.Finston@@gmx.de@> |
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@q The mailing list help-3dldf@@gnu.org is available for people to @> |
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@q ask other users for help. @> |
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@q The mailing list info-3dldf@@gnu.org is for sending @> |
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@q announcements to users. To subscribe to these mailing lists, send an @> |
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@q email with ``subscribe <email-address>'' as the subject. @> |
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@q The author can be contacted at: @> |
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@q Laurence D. Finston @> |
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@q c/o Free Software Foundation, Inc. @> |
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@q 51 Franklin St, Fifth Floor @> |
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@q Boston, MA 02110-1301 @> |
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@q USA @> |
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@q Laurence.Finston@@gmx.de (@@ stands for a single "at" sign.)@> |
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@q * (0) animctrl.@> |
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@** animctrl\quad ({\tt animctrl\PERIOD web}).\hfil |
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|
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\LOG |
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\initials{LDF 2005.05.08.} |
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Created this file. |
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\ENDLOG |
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|
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@<Version control identifier@>= |
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static string rcs_id |
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= "$Id: animctrl.web,v 1.7 2008/01/05 17:57:15 lfinsto1 Exp $"; |
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@q * (1) Include files.@> |
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@ Include files. |
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\LOG |
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\initials{LDF 2005.05.11.} |
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Added code to this section. Previously, it was empty. |
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\ENDLOG |
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|
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@<Include files@>= |
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#include "../CWEB/config.h" |
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|
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#ifndef DEBUG_COMPILE |
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#define DEBUG_COMPILE 1 |
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#endif |
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#include <errno.h> |
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#include <exception> |
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#ifdef __GNUC__ |
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#if HAVE_FLOAT_H |
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#include <float.h> /* \initials{LDF 2002.12.13.} Needed for |FLT_MAX|. */ |
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#endif |
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#endif |
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#include <fstream> |
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#include <iomanip> |
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#include <ios> |
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#include <iostream> |
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#include <iterator> |
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#include <math.h> |
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#include <new> |
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#include <pthread.h> |
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#include <sstream> |
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#include <stdarg.h> |
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#include <stdexcept> |
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#include <stdio.h> |
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#if HAVE_STDLIB_H |
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#include <stdlib.h> |
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#endif |
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#include <string> |
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#include <sys/types.h> |
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#include <sys/wait.h> |
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#include <unistd.h> |
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using namespace std; |
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#include "thrdutls.h" |
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@q * (1) Scanning and parsing input.@> |
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@* Scanning and parsing input. |
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@q ** (2) yyparse. @> |
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@*1 {\bf yyparse()}. |
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@<Declare scanning and parsing functions@>= |
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int |
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yyparse (void*); |
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@q ** (2) yywrap. @> |
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@*1 {\bf yywrap()}. |
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@<Declare scanning and parsing functions@>= |
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#if 0 |
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int |
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yywrap(void); |
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#endif |
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@ |
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@<Define scanning and parsing functions@>= |
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#if 0 |
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int |
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yywrap(void) |
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{ |
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return 1; |
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} |
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#endif |
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@q * (1) Global variables.@> |
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@* Global variables. |
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\initials{LDF 2005.05.11.} |
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\LOG |
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\initials{LDF 2005.05.11.} |
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Added this section. |
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\initials{LDF 2005.05.11.} |
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|THREADS_MAX_LDF| and |PROCESSES_MAX_LDF| will normally be set |
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to |PTHREAD_THREADS_MAX| and |CHILD_MAX|, respectively. |
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On the system I'm using, |PTHREAD_THREADS_MAX == 16384| and |
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|CHILD_MAX == 999|. However, |THREADS_MAX_LDF| and |PROCESSES_MAX_LDF| |
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can be set to lower values for debugging. On the system I'm using, |
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|USHRT_MAX == 65535|, so it's large enough to be used for |
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|THREADS_MAX_LDF| and |PROCESSES_MAX_LDF|. |
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\ENDLOG |
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@<Global variables@>= |
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Cond_Var_Type <unsigned short> thread_ctr; |
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Cond_Var_Type <unsigned short> process_ctr; |
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const unsigned short THREADS_MAX_LDF = PTHREAD_THREADS_MAX; |
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const unsigned short PROCESSES_MAX_LDF = CHILD_MAX; |
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@q * (1) Main.@> |
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@* Main. |
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\initials{LDF 2005.05.08.} |
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@<Main@>= |
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int |
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main(int argc, char** argv) |
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{ |
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bool DEBUG = true; /* |false| */ |
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stringstream cerr_strm; |
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int status; |
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#if DEBUG_COMPILE |
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if (DEBUG) |
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{ |
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cerr_strm << "Entering 'animctrl' ('main()')."; |
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log_message(cerr_strm); |
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cerr_message(cerr_strm); |
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cerr_strm.str(""); |
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#if 0 |
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cerr_strm << "In 'main()': 'CHILD_MAX' == " << CHILD_MAX |
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<< endl |
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<< "'PTHREAD_THREADS_MAX' == " << PTHREAD_THREADS_MAX |
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<< endl |
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<< "'USHRT_MAX' == " << USHRT_MAX; |
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log_message(cerr_strm); |
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cerr_message(cerr_strm); |
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cerr_strm.str(""); |
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#endif |
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} |
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#endif /* |DEBUG_COMPILE| */@; |
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thread_ctr.lock(); |
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thread_ctr.value_0 = 1; |
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thread_ctr.unlock(); |
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process_ctr.lock(); |
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process_ctr.value_0 = 1; |
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process_ctr.unlock(); |
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pthread_t thread_id; |
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thread_ctr.lock(); |
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status = pthread_create(&thread_id, 0, thread_func, 0); |
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thread_ctr.value_0 += 1; |
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thread_ctr.unlock(); |
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status = pthread_join(thread_id, 0); |
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thread_ctr.lock(); |
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thread_ctr.value_0 -= 1; |
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thread_ctr.unlock(); |
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cerr_strm << "In 'main()': Joined with the sub-thread."; |
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cerr_message(cerr_strm); |
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cerr_strm.str(""); |
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pthread_exit(0); |
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} /* End of |main()| definition. */ |
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@q * (1) |thread_func()|.@> |
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@* {\bf thread\_func()}. |
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\LOG |
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\initials{LDF 2005.05.11.} |
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Added this function. |
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\ENDLOG |
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@q ** (2) Declaration.@> |
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@<Declare |thread_func()|@>= |
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void* |
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thread_func(void* arg); |
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@q ** (2) Definition.@> |
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@ |
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@<Define |thread_func()|@>= |
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void* |
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thread_func(void* arg) |
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{ |
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stringstream cerr_strm; |
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cerr_strm << "Entering 'thread_func()'."; |
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log_message(cerr_strm); |
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cerr_message(cerr_strm); |
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cerr_strm.str(""); |
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process_ctr.lock(); |
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pid_t pid = fork(); |
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process_ctr.value_0 += 1; |
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process_ctr.unlock(); |
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if (pid == 0) |
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{ |
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cerr_strm << "In the child process." << endl; |
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log_message(cerr_strm); |
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cerr_message(cerr_strm); |
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cerr_strm.str(""); |
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execl("a.out", "./a.out", 0); |
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} |
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else |
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{ |
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int status; |
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cerr_strm << "In the parent process: " |
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<< "Waiting for child process to terminate." |
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<< endl; |
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log_message(cerr_strm); |
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cerr_message(cerr_strm); |
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cerr_strm.str(""); |
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waitpid(pid, &status, 0); |
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process_ctr.lock(); |
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process_ctr.value_0 -= 1; |
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process_ctr.unlock(); |
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cerr_strm << "In the parent process: " |
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<< "Child process terminated." |
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<< endl |
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<< "Exiting 'thread_func()'."; |
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log_message(cerr_strm); |
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cerr_message(cerr_strm); |
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cerr_strm.str(""); |
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pthread_exit(0); |
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} |
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} /* End of |thread_func()| definition. */ |
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@q * (1) |log_message()|.@> |
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@* {\bf log\_message()}. |
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\initials{LDF 2005.05.11.} |
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|
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\LOG |
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\initials{LDF 2005.05.11.} |
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Added this function. |
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It currently returns 0 immediately. |
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\ENDLOG |
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|
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@q ** (2) Declaration.@> |
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|
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@<Declare |log_message()|@>= |
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int |
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log_message(stringstream& s); |
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@q ** (2) Definition.@> |
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|
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@ |
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@<Define |log_message()|@>= |
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int |
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log_message(stringstream& s) |
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{ |
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return 0; |
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} |
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@q * (1) Putting animctrl together.@> |
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@* Putting animctrl together. |
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@q ** (2) Compilation. @> |
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@ This is what's compiled. |
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@c |
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@<Include files@>@; |
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@<Version control identifier@>@; |
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@<Global variables@>@; |
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@<Declare scanning and parsing functions@>@; |
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@<Declare |log_message()|@>@; |
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@<Declare |thread_func()|@>@; |
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@<Main@>@; |
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@<Define scanning and parsing functions@>@; |
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@<Define |log_message()|@>@; |
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@<Define |thread_func()|@>@; |
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@q * (1)@> |
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|
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@q * (1) Emacs-Lisp code for use in indirect buffers when using the @> |
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@q GNU Emacs editor. The local variable list is not evaluated when an @> |
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@q indirect buffer is visited, so it's necessary to evaluate the @> |
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@q following s-expression in order to use the facilities normally @> |
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@q accessed via the local variables list. @> |
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@q \initials{LDF 2004.02.12}. @> |
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@q (progn (cweb-mode) (outline-minor-mode t)) @> |
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|
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|
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@q * Local variables for Emacs.@> |
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@q Local Variables: @> |
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@q mode:CWEB @> |
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@q eval:(display-time) @> |
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@q run-cweave-on-file:"3DLDFprg.web" @> |
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@q eval:(read-abbrev-file) @> |
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@q indent-tabs-mode:nil @> |
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@q eval:(outline-minor-mode) @> |
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@q fill-column:80 @> |
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@q End: @> |
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|