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view extensions/test_netemul/test_netemul.y @ 740:4a9f08d6b6ba
Updated my mail address
author | Sebastien Decugis <sdecugis@nict.go.jp> |
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date | Thu, 24 Mar 2011 15:00:18 +0900 |
parents | 083317a4e947 |
children | 2091bf698fb1 |
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/********************************************************************************************************* * Software License Agreement (BSD License) * * Author: Sebastien Decugis <sdecugis@freediameter.net> * * * * Copyright (c) 2011, WIDE Project and NICT * * All rights reserved. * * * * Redistribution and use of this software in source and binary forms, with or without modification, are * * permitted provided that the following conditions are met: * * * * * Redistributions of source code must retain the above * * copyright notice, this list of conditions and the * * following disclaimer. * * * * * Redistributions in binary form must reproduce the above * * copyright notice, this list of conditions and the * * following disclaimer in the documentation and/or other * * materials provided with the distribution. * * * * * Neither the name of the WIDE Project or NICT nor the * * names of its contributors may be used to endorse or * * promote products derived from this software without * * specific prior written permission of WIDE Project and * * NICT. * * * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED * * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *********************************************************************************************************/ /* Yacc extension's configuration parser. */ /* For development only : */ %debug %error-verbose /* The parser receives the configuration file filename as parameter */ %parse-param {char * conffile} /* Keep track of location */ %locations %pure-parser %{ #include "test_netemul.h" #include "test_netemul.tab.h" /* YYLTYPE */ /* Forward declaration */ int yyparse(char * conffile); /* Parse the configuration file */ int tne_conf_handle(char * conffile) { extern FILE * test_netemulin; int ret; TRACE_ENTRY("%p", conffile); TRACE_DEBUG (FULL, "Parsing configuration file: %s...", conffile); test_netemulin = fopen(conffile, "r"); if (test_netemulin == NULL) { ret = errno; fd_log_debug("Unable to open extension configuration file %s for reading: %s\n", conffile, strerror(ret)); TRACE_DEBUG (INFO, "Error occurred, message logged -- configuration file."); return ret; } ret = yyparse(conffile); fclose(test_netemulin); if (ret != 0) { TRACE_DEBUG (INFO, "Unable to parse the configuration file."); return EINVAL; } else { TRACE_DEBUG(FULL, "[test_netemul]\n latency: %lu ms (var:%u%%)\n duplicates: %G probability.", tne_conf.lat_avg, tne_conf.lat_dev, tne_conf.dupl_proba); } return 0; } /* The Lex parser prototype */ int test_netemullex(YYSTYPE *lvalp, YYLTYPE *llocp); /* Function to report the errors */ void yyerror (YYLTYPE *ploc, char * conffile, char const *s) { TRACE_DEBUG(INFO, "Error in configuration parsing"); if (ploc->first_line != ploc->last_line) fd_log_debug("%s:%d.%d-%d.%d : %s\n", conffile, ploc->first_line, ploc->first_column, ploc->last_line, ploc->last_column, s); else if (ploc->first_column != ploc->last_column) fd_log_debug("%s:%d.%d-%d : %s\n", conffile, ploc->first_line, ploc->first_column, ploc->last_column, s); else fd_log_debug("%s:%d.%d : %s\n", conffile, ploc->first_line, ploc->first_column, s); } %} /* Values returned by lex for token */ %union { unsigned long ulong; float decimal; } /* In case of error in the lexical analysis */ %token LEX_ERROR %token <ulong> ULONG %token <decimal> FLOAT /* Tokens */ %token LATENCY_AVERAGE %token LATENCY_DEVIATION %token DUPL_PROBA %token UNIT_SEC %token UNIT_MSEC /* -------------------------------------- */ %% /* The grammar definition */ conffile: /* empty */ | conffile latency_average | conffile latency_deviation | conffile dupl_proba ; /* a server entry */ latency_average: LATENCY_AVERAGE '=' ULONG UNIT_SEC ';' { tne_conf.lat_avg = $3 * 1000; } | LATENCY_AVERAGE '=' ULONG UNIT_MSEC ';' { tne_conf.lat_avg = $3; } ; latency_deviation: LATENCY_DEVIATION '=' ULONG '%' ';' { tne_conf.lat_dev = (int)$3; if ((tne_conf.lat_dev < 0) || (tne_conf.lat_dev > 100)) { yyerror (&yylloc, conffile, "Latency_Deviation must be comprised between 0 and 100."); YYERROR; } } ; dupl_proba: DUPL_PROBA '=' ULONG ';' { tne_conf.dupl_proba = (float) $3; } | DUPL_PROBA '=' FLOAT ';' { tne_conf.dupl_proba = $3; } | DUPL_PROBA '=' ULONG '/' ULONG ';' { tne_conf.dupl_proba = ((float)$3) / ((float)$5) ; } ;