|
| 1 | +#! /usr/bin/perl -w |
| 2 | +#------------------------------------------------------------------------- |
| 3 | +# |
| 4 | +# Gen_dummy_probes.pl |
| 5 | +# Perl script that generates probes.h file when dtrace is not available |
| 6 | +# |
| 7 | +# Portions Copyright (c) 2008-2016, PostgreSQL Global Development Group |
| 8 | +# |
| 9 | +# |
| 10 | +# IDENTIFICATION |
| 11 | +# src/backend/utils/Gen_dummy_probes.pl |
| 12 | +# |
| 13 | +# This program was generated by running perl's s2p over Gen_dummy_probes.sed |
| 14 | +# |
| 15 | +#------------------------------------------------------------------------- |
| 16 | + |
| 17 | +$0 =~s/^.*?(\w+)[\.\w+]*$/$1/; |
| 18 | + |
| 19 | +use strict; |
| 20 | +use Symbol; |
| 21 | +use varsqw{ $isEOF $Hold %wFiles @Q $CondReg |
| 22 | + $doAutoPrint $doOpenWrite $doPrint}; |
| 23 | +$doAutoPrint = 1; |
| 24 | +$doOpenWrite = 1; |
| 25 | + |
| 26 | +# prototypes |
| 27 | +subopenARGV(); |
| 28 | +subgetsARGV(;\$); |
| 29 | +subeofARGV(); |
| 30 | +subprintQ(); |
| 31 | + |
| 32 | +# Run: the sed loop reading input and applying the script |
| 33 | +# |
| 34 | +subRun() |
| 35 | +{ |
| 36 | +my ($h,$icnt,$s,$n); |
| 37 | + |
| 38 | +# hack (not unbreakable :-/) to avoid // matching an empty string |
| 39 | +my$z ="\000"; |
| 40 | +$z =~/$z/; |
| 41 | + |
| 42 | +# Initialize. |
| 43 | +openARGV(); |
| 44 | +$Hold =''; |
| 45 | +$CondReg = 0; |
| 46 | +$doPrint =$doAutoPrint; |
| 47 | + CYCLE: |
| 48 | +while (getsARGV()) |
| 49 | +{ |
| 50 | +chomp(); |
| 51 | +$CondReg = 0;# cleared on t |
| 52 | + BOS:; |
| 53 | + |
| 54 | +# /^[ ]*probe /!d |
| 55 | +unless (m /^[\t]*probe/s) |
| 56 | +{ |
| 57 | +$doPrint = 0; |
| 58 | +goto EOS; |
| 59 | +} |
| 60 | + |
| 61 | +# s/^[ ]*probe \([^(]*\)\(.*\);/\1\2/ |
| 62 | +{ |
| 63 | +$s =s /^[ \t]*probe ([^(]*)(.*);/${1}${2}/s; |
| 64 | +$CondReg ||=$s; |
| 65 | +} |
| 66 | + |
| 67 | +# s/__/_/g |
| 68 | +{ |
| 69 | +$s =s /__/_/sg; |
| 70 | +$CondReg ||=$s; |
| 71 | +} |
| 72 | + |
| 73 | +# y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/ |
| 74 | +{y{abcdefghijklmnopqrstuvwxyz}{ABCDEFGHIJKLMNOPQRSTUVWXYZ}; } |
| 75 | + |
| 76 | +# s/^/#define TRACE_POSTGRESQL_/ |
| 77 | +{ |
| 78 | +$s =s /^/#define TRACE_POSTGRESQL_/s; |
| 79 | +$CondReg ||=$s; |
| 80 | +} |
| 81 | + |
| 82 | +# s/([^,)]\{1,\})/(INT1)/ |
| 83 | +{ |
| 84 | +$s =s /\([^,)]+\)/(INT1)/s; |
| 85 | +$CondReg ||=$s; |
| 86 | +} |
| 87 | + |
| 88 | +# s/([^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2)/ |
| 89 | +{ |
| 90 | +$s =s /\([^,)]+, [^,)]+\)/(INT1, INT2)/s; |
| 91 | +$CondReg ||=$s; |
| 92 | +} |
| 93 | + |
| 94 | +# s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2, INT3)/ |
| 95 | +{ |
| 96 | +$s =s /\([^,)]+, [^,)]+, [^,)]+\)/(INT1, INT2, INT3)/s; |
| 97 | +$CondReg ||=$s; |
| 98 | +} |
| 99 | + |
| 100 | +# s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2, INT3, INT4)/ |
| 101 | +{ |
| 102 | +$s = |
| 103 | +s /\([^,)]+, [^,)]+, [^,)]+, [^,)]+\)/(INT1, INT2, INT3, INT4)/s; |
| 104 | +$CondReg ||=$s; |
| 105 | +} |
| 106 | + |
| 107 | +# s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2, INT3, INT4, INT5)/ |
| 108 | +{ |
| 109 | +$s = |
| 110 | +s /\([^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+\)/(INT1, INT2, INT3, INT4, INT5)/s; |
| 111 | +$CondReg ||=$s; |
| 112 | +} |
| 113 | + |
| 114 | +# s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2, INT3, INT4, INT5, INT6)/ |
| 115 | +{ |
| 116 | +$s = |
| 117 | +s /\([^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+\)/(INT1, INT2, INT3, INT4, INT5, INT6)/s; |
| 118 | +$CondReg ||=$s; |
| 119 | +} |
| 120 | + |
| 121 | +# s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2, INT3, INT4, INT5, INT6, INT7)/ |
| 122 | +{ |
| 123 | +$s = |
| 124 | +s /\([^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+\)/(INT1, INT2, INT3, INT4, INT5, INT6, INT7)/s; |
| 125 | +$CondReg ||=$s; |
| 126 | +} |
| 127 | + |
| 128 | +# s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2, INT3, INT4, INT5, INT6, INT7, INT8)/ |
| 129 | +{ |
| 130 | +$s = |
| 131 | +s /\([^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+, [^,)]+\)/(INT1, INT2, INT3, INT4, INT5, INT6, INT7, INT8)/s; |
| 132 | +$CondReg ||=$s; |
| 133 | +} |
| 134 | + |
| 135 | +# P |
| 136 | +{ |
| 137 | +if (/^(.*)/) {print$1,"\n"; } |
| 138 | +} |
| 139 | + |
| 140 | +# s/(.*$/_ENABLED() (0)/ |
| 141 | +{ |
| 142 | +$s =s /\(.*$/_ENABLED() (0)/s; |
| 143 | +$CondReg ||=$s; |
| 144 | +} |
| 145 | + EOS:if ($doPrint) |
| 146 | +{ |
| 147 | +print$_,"\n"; |
| 148 | +} |
| 149 | +else |
| 150 | +{ |
| 151 | +$doPrint =$doAutoPrint; |
| 152 | +} |
| 153 | +printQ()if@Q; |
| 154 | +} |
| 155 | + |
| 156 | +exit(0); |
| 157 | +} |
| 158 | +Run(); |
| 159 | + |
| 160 | +# openARGV: open 1st input file |
| 161 | +# |
| 162 | +subopenARGV() |
| 163 | +{ |
| 164 | +unshift(@ARGV,'-')unless@ARGV; |
| 165 | +my$file =shift(@ARGV); |
| 166 | +open(ARG,"<$file") |
| 167 | + ||die("$0: can't open$file for reading ($!)\n"); |
| 168 | +$isEOF = 0; |
| 169 | +} |
| 170 | + |
| 171 | +# getsARGV: Read another input line into argument (default: $_). |
| 172 | +# Move on to next input file, and reset EOF flag $isEOF. |
| 173 | +subgetsARGV(;\$) |
| 174 | +{ |
| 175 | +my$argref =@_ ?shift() : \$_; |
| 176 | +while ( $isEOF || ! defined( $$argref = <ARG>)) |
| 177 | +{ |
| 178 | +close(ARG); |
| 179 | +return 0unless@ARGV; |
| 180 | +my$file =shift(@ARGV); |
| 181 | +open(ARG,"<$file") |
| 182 | + ||die("$0: can't open$file for reading ($!)\n"); |
| 183 | +$isEOF = 0; |
| 184 | +} |
| 185 | +1; |
| 186 | +} |
| 187 | + |
| 188 | +# eofARGV: end-of-file test |
| 189 | +# |
| 190 | +subeofARGV() |
| 191 | +{ |
| 192 | +return@ARGV == 0 && ($isEOF =eof(ARG)); |
| 193 | +} |
| 194 | + |
| 195 | +# makeHandle: Generates another file handle for some file (given by its path) |
| 196 | +# to be written due to a w command or an s command's w flag. |
| 197 | +submakeHandle($) |
| 198 | +{ |
| 199 | +my ($path) =@_; |
| 200 | +my$handle; |
| 201 | +if (!exists($wFiles{$path}) ||$wFiles{$path}eq'') |
| 202 | +{ |
| 203 | +$handle =$wFiles{$path} = gensym(); |
| 204 | +if ($doOpenWrite) |
| 205 | +{ |
| 206 | +if (!open($handle,">$path")) |
| 207 | +{ |
| 208 | +die("$0: can't open$path for writing: ($!)\n"); |
| 209 | +} |
| 210 | +} |
| 211 | +} |
| 212 | +else |
| 213 | +{ |
| 214 | +$handle =$wFiles{$path}; |
| 215 | +} |
| 216 | +return$handle; |
| 217 | +} |
| 218 | + |
| 219 | +# printQ: Print queued output which is either a string or a reference |
| 220 | +# to a pathname. |
| 221 | +subprintQ() |
| 222 | +{ |
| 223 | +formy$q (@Q) |
| 224 | +{ |
| 225 | +if (ref($q)) |
| 226 | +{ |
| 227 | +# flush open w files so that reading this file gets it all |
| 228 | +if (exists($wFiles{$$q}) &&$wFiles{$$q}ne'') |
| 229 | +{ |
| 230 | +open($wFiles{$$q},">>$$q"); |
| 231 | +} |
| 232 | + |
| 233 | +# copy file to stdout: slow, but safe |
| 234 | +if (open(RF,"<$$q")) |
| 235 | +{ |
| 236 | +while (defined(my$line = <RF>)) |
| 237 | +{ |
| 238 | +print$line; |
| 239 | +} |
| 240 | +close(RF); |
| 241 | +} |
| 242 | +} |
| 243 | +else |
| 244 | +{ |
| 245 | +print$q; |
| 246 | +} |
| 247 | +} |
| 248 | +undef(@Q); |
| 249 | +} |