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1 | use 5.006; |
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2 | |
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3 | use Config; |
1 | use ExtUtils::MakeMaker; |
4 | use ExtUtils::MakeMaker; |
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5 | |
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6 | |
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7 | unless (-e "libev/ev_epoll.c") { |
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8 | print <<EOF; |
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9 | |
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10 | *** |
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11 | *** ERROR: libev is missing or damaged. If you used a CVS check-out of EV, |
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12 | *** you also have to check-out the "libev" module from the same CVS |
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13 | *** repository into the EV dir (i.e. EV/libev from outside). |
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14 | *** |
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15 | |
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16 | EOF |
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17 | exit 1; |
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18 | } |
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19 | |
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20 | print <<EOF; |
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21 | |
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22 | |
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23 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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24 | |
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25 | Welcome to EV configuration. If you are in a hurry, just press return here |
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26 | and hope for the best. The defaults should usually do. |
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27 | |
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28 | EOF |
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29 | |
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30 | if (prompt ("Skip further questions and use defaults (y/n)?", "y") =~ /[yY]/) { |
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31 | $ENV{PERL_MM_USE_DEFAULT} = 1; |
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32 | } |
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33 | |
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34 | print <<EOF; |
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35 | |
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36 | |
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37 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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38 | |
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39 | POSIX optionally offers support for a monotonic clock source. EV |
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40 | can take advantage of this clock source to detect time jumps |
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41 | reliably. Unfortunately, some systems are bound to be broken, so you can |
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42 | disable this here: you can completely disable the detection and use of |
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43 | the monotonic clock by answering 'n' here. Support for this clock type |
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44 | will otherwise be autodetected at both compile- and runtime. |
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45 | |
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46 | EOF |
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47 | |
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48 | if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) { |
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49 | $DEFINE .= " -DEV_USE_MONOTONIC"; |
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50 | } |
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51 | |
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52 | print <<EOF; |
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53 | |
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54 | |
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55 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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56 | |
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57 | POSIX optionally offers support for a (potentially) high-resolution |
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58 | realtime clock interface. In a good implementation, using it is faster |
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59 | than the normal method of using gettimeofday. Unfortunately, this option |
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60 | is also bound to be broken on some systems, so you can disable use and |
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61 | probing of this feature altogether here. Otherwise support for this clock |
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62 | type will be autodetected at compiletime. |
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63 | |
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64 | EOF |
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65 | |
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66 | if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) { |
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67 | $DEFINE .= " -DEV_USE_REALTIME=0"; |
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68 | } |
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69 | |
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70 | print <<EOF; |
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71 | |
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72 | |
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73 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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74 | |
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75 | EV can use various backends with various portability issue. The select |
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76 | backend is the most portable and makes for a good fallback, but it can be |
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77 | limited to a low number of file descriptors and/or might not compile. If |
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78 | you have problems with compiling ev_select., you might try to play around |
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79 | with disabling it here, or forcing it to use the fd_set provided by your |
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80 | OS, via the next question. I highly recommend keeping it in. |
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81 | |
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82 | EOF |
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83 | |
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84 | if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) { |
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85 | $DEFINE .= " -DEV_USE_SELECT"; |
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86 | |
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87 | print <<EOF; |
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88 | |
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89 | |
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90 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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91 | |
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92 | The select backend can operate in two modes. One uses the system-provided |
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93 | fd_set and is usually limited to 1024 file descriptors (64 on windows), |
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94 | the other requires your header files to define NFDBITS and declare a |
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95 | suitable fd_mask type. If you run into problems compiling ev_select.c, you |
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96 | can try forcing the use of the system fd_set here. |
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97 | |
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98 | EOF |
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99 | |
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100 | if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) { |
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101 | $DEFINE .= " -DEV_SELECT_USE_FD_SET"; |
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102 | } |
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103 | } |
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104 | |
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105 | print <<EOF; |
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106 | |
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107 | |
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108 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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109 | |
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110 | The second very portable backend is poll(2). It does not exist on windows |
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111 | and various versions of Mac OS X (and on the other versions it simply |
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112 | doesn't work), but works basically everywhere else. It is recommended to use |
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113 | the default here unless you run into compile problems in ev_poll.c. |
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114 | |
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115 | EOF |
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116 | |
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117 | if (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/) { |
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118 | $DEFINE .= " -DEV_USE_POLL"; |
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119 | } |
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120 | |
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121 | print <<EOF; |
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122 | |
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123 | |
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124 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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125 | |
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126 | EV by default uses select, which makes it hard to write efficient servers, |
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127 | especially if the number of active conencitons is much lower than the open |
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128 | ones. GNU/Linux systems have a more scalable method called "epoll", which |
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129 | EV can use. For this to work, both your kernel and glibc have to support |
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130 | epoll, but if you can compile it, the detection will be done at runtime, |
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131 | and EV will safely fall back to using select when epoll isn't available. |
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132 | If unsure, accept the default. |
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133 | |
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134 | EOF |
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135 | |
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136 | if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) { |
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137 | $DEFINE .= " -DEV_USE_EPOLL"; |
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138 | } |
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139 | |
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140 | print <<EOF; |
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141 | |
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142 | |
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143 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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144 | |
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145 | Similarly to the epoll backend above, EV can take advantage of kqueue |
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146 | on many BSD systems (it seems to be broken on Mac OS X though, but what |
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147 | isn't broken on that shoddy platform... ah yes, the cash gushing by apple, |
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148 | selling defective software works perfectly there). Support for kqueue will |
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149 | be detected at runtime, with a safe fallback to other methods when it |
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150 | cannot be used. |
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151 | |
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152 | EOF |
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153 | |
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154 | if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) { |
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155 | $DEFINE .= " -DEV_USE_KQUEUE"; |
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156 | } |
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157 | |
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158 | print <<EOF; |
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159 | |
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160 | |
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161 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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162 | |
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163 | EV needs the functions pthread_atfork and clock_gettime. On most systems |
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164 | you need some special libraries for this (such as -lrt and -lpthread). You |
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165 | can specify additional libraries to provide these calls now, or accept the |
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166 | default. |
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167 | |
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168 | EOF |
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169 | |
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170 | $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt"; |
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171 | |
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172 | |
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173 | print <<EOF; |
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174 | |
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175 | |
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176 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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177 | |
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178 | EOF |
2 | |
179 | |
3 | WriteMakefile( |
180 | WriteMakefile( |
4 | dist => { |
181 | dist => { |
5 | PREOP => 'pod2text Libevent.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', |
182 | PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', |
6 | COMPRESS => 'gzip -9v', |
183 | COMPRESS => 'gzip -9v', |
7 | SUFFIX => '.gz', |
184 | SUFFIX => '.gz', |
8 | }, |
185 | }, |
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186 | depend => { |
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187 | "EV.c" => "EV/EVAPI.h " |
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188 | . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c " |
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189 | . "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h", |
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190 | }, |
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191 | INC => "-Ilibev", |
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192 | DEFINE => "$DEFINE", |
9 | NAME => "Libevent", |
193 | NAME => "EV", |
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194 | LIBS => [$LIBS], |
10 | VERSION_FROM => "Libevent.pm", |
195 | VERSION_FROM => "EV.pm", |
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196 | PM => { |
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197 | 'EV.pm' => '$(INST_LIBDIR)/EV.pm', |
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198 | 'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm', |
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199 | 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', |
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200 | 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', |
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201 | 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', |
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202 | }, |
11 | ); |
203 | ); |
12 | |
204 | |
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205 | |