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Comparing EV/Makefile.PL (file contents):
Revision 1.16 by root, Tue Nov 6 17:20:42 2007 UTC vs.
Revision 1.28 by root, Fri Dec 21 04:41:12 2007 UTC

1use 5.006; 1use 5.006;
2 2
3use Config; 3use Config;
4use ExtUtils::MakeMaker; 4use ExtUtils::MakeMaker;
5
6 5
7unless (-e "libev/ev_epoll.c") { 6unless (-e "libev/ev_epoll.c") {
8 print <<EOF; 7 print <<EOF;
9 8
10*** 9***
… …
17 exit 1; 16 exit 1;
18} 17}
19 18
20print <<EOF; 19print <<EOF;
21 20
22
23*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 21*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
22
24 23
25Welcome to EV configuration. If you are in a hurry, just press return here 24Welcome to EV configuration. If you are in a hurry, just press return here
26and hope for the best. The defaults should usually do. 25and hope for the best. The defaults should usually do.
27 26
28EOF 27EOF
… …
31 $ENV{PERL_MM_USE_DEFAULT} = 1; 30 $ENV{PERL_MM_USE_DEFAULT} = 1;
32} 31}
33 32
34print <<EOF; 33print <<EOF;
35 34
36
37*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 35*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
36
38 37
39POSIX optionally offers support for a monotonic clock source. EV 38POSIX optionally offers support for a monotonic clock source. EV
40can take advantage of this clock source to detect time jumps 39can take advantage of this clock source to detect time jumps
41reliably. Unfortunately, some systems are bound to be broken, so you can 40reliably. Unfortunately, some systems are bound to be broken, so you can
42disable this here: you can completely disable the detection and use of 41disable this here: you can completely disable the detection and use of
43the monotonic clock by answering 'n' here. Support for this clock type 42the monotonic clock by answering 'n' here. Support for this clock type
44will otherwise be autodetected at both compile- and runtime. 43will otherwise be autodetected at both compile- and runtime.
45 44
46EOF 45EOF
47 46
48if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) { 47$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
49 $DEFINE .= " -DEV_USE_MONOTONIC";
50}
51 48
52print <<EOF; 49print <<EOF;
53 50
54
55*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 51*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
52
56 53
57POSIX optionally offers support for a (potentially) high-resolution 54POSIX optionally offers support for a (potentially) high-resolution
58realtime clock interface. In a good implementation, using it is faster 55realtime clock interface. In a good implementation, using it is faster
59than the normal method of using gettimeofday. Unfortunately, this option 56than the normal method of using gettimeofday. Unfortunately, this option
60is also bound to be broken on some systems, so you can disable use and 57is also bound to be broken on some systems, so you can disable use and
61probing of this feature altogether here. Otherwise support for this clock 58probing of this feature altogether here. Otherwise support for this clock
62type will be autodetected at compiletime. 59type will be autodetected at compiletime.
63 60
64EOF 61EOF
65 62
66if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) { 63$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/));
64
65print <<EOF;
66
67*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
68
69
70EV can use various backends with various portability issue. The select
71backend is the most portable and makes for a good fallback, but it can be
72limited to a low number of file descriptors and/or might not compile. If
73you have problems with compiling ev_select.c, you might try to play around
74with disabling it here, or forcing it to use the fd_set provided by your
75OS, via the next question. I highly recommend keeping it in.
76
77EOF
78
79if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
67 $DEFINE .= " -DEV_USE_REALTIME=0"; 80 $DEFINE .= " -DEV_USE_SELECT=1";
68}
69 81
70print <<EOF; 82 print <<EOF;
71 83
72
73*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 84*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
74 85
75EV by default uses select, which makes it hard to write efficient servers,
76especially if the number of active conencitons is much lower than the open
77ones. GNU/Linux systems have a more scalable method called "epoll", which
78EV can use. For this to work, both your kernel and glibc have to support
79epoll, but if you can compile it, the detection will be done at runtime,
80and EV will safely fall back to using select when epoll isn't available.
81If unsure, accept the default.
82 86
83EOF 87The select backend can operate in two modes. One uses the system-provided
88fd_set and is usually limited to 1024 file descriptors (64 on windows),
89the other requires your header files to define NFDBITS and declare a
90suitable fd_mask type. If you run into problems compiling ev_select.c, you
91can try forcing the use of the system fd_set here.
84 92
85if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) { 93EOF
94
95 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
96 $DEFINE .= " -DEV_SELECT_USE_FD_SET";
97 }
98} else {
86 $DEFINE .= " -DEV_USE_EPOLL"; 99 $DEFINE .= " -DEV_USE_SELECT=0";
87} 100}
88 101
89print <<EOF; 102print <<EOF;
90 103
91
92*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 104*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
105
106
107The second very portable backend is poll(2). It does not exist on windows
108and various versions of Mac OS X (and on the other versions it simply
109doesn't work), but works basically everywhere else. It is recommended to use
110the default here unless you run into compile problems in ev_poll.c.
111
112EOF
113
114$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/));
115
116print <<EOF;
117
118*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
119
120
121Select and poll make it hard to write efficient servers, especially if the
122number of active connections is much lower than the watched ones. GNU/Linux
123systems have a more scalable method called "epoll", which EV can use. For
124this to work, both your kernel and glibc have to support epoll, but if you
125can compile it, the detection will be done at runtime, and EV will safely
126fall back to using select when epoll isn't available. If unsure, accept
127the default.
128
129EOF
130
131$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/));
132
133print <<EOF;
134
135*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
136
93 137
94Similarly to the epoll backend above, EV can take advantage of kqueue on 138Similarly to the epoll backend above, EV can take advantage of kqueue on
95many BSD systems (it seems to be broken on Mac OS X though). The kqueue
96backend has not been tested, however, so it is disabled by default. Please
97test (and preferably fix) the kqueue backend when you have a machine
98supporting it. Support for kqueue will be detected at runtime, with a 139many BSD systems. Support for kqueue will be detected at runtime, with a
99safe fallback to other methods when it cannot be used. 140safe fallback to other methods when it cannot be used.
100 141
101EOF 142Note that kqueue is broken on most operating systems, so it defaults to
143'n' on everything but netbsd. Here is what we know:
102 144
103if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) { 145NetBSD: partially working in at least 3.1. Yeah! :)
104 $DEFINE .= " -DEV_USE_KQUEUE"; 146FreeBSD: broken on at least 6.2-STABLE,
105} 147 sockets *likely* work, ptys definitely don't.
148OpenBSD: reports indicate that it likely doesn't work
149 (similar problems as on FreeBSD).
150OS X: completely, utterly broken on at least < 10.5.
106 151
107print <<EOF; 152EOF
108 153
154my $can_kqueue = -e "/usr/include/sys/event.h";
109 155
156$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
157
158print <<EOF;
159
110*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 160*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
161
162
163Similarly to the kqueue backend above, EV can take advantage of the
164solaris 10 event port interface. Support for event ports will be detected
165at runtime, with a safe fallback to other methods when it cannot be used.
166
167EOF
168
169$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/));
170
171print <<EOF;
172
173*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
174
111 175
112EV needs the functions pthread_atfork and clock_gettime. On most systems 176EV needs the functions pthread_atfork and clock_gettime. On most systems
113you need some special libraries for this (such as -lrt and -lpthread). You 177you need some special libraries for this (such as -lrt and -lpthread). You
114can specify additional libraries to provide these calls now, or accept the 178can specify additional libraries to provide these calls (and any other
115default. 179required by EV) now, or accept the default.
116 180
117EOF 181EOF
118 182
183$SOLARIS_LIBS = $^O =~ /solaris/ ? " -lsocket -lnsl" : "";
184
119$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt"; 185$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$SOLARIS_LIBS";
120 186
121 187
122print <<EOF; 188print <<EOF;
123 189
124
125*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 190*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
126 191
192
193A backend of a different kind is the Linux inotify(7) interface, which can
194be used to speed up (and reduce resource consumption) of stat watchers. If
195you have it, it is usually a good idea to enable it.
196
127EOF 197EOF
198
199my $can_inotify = -e "/usr/include/sys/inotify.h";
200
201$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
202
203print <<EOF;
204
205*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
206
207
208EOF
209
210my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : ();
128 211
129WriteMakefile( 212WriteMakefile(
130 dist => { 213 dist => {
131 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 214 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
132 COMPRESS => 'gzip -9v', 215 COMPRESS => 'gzip -9v',
133 SUFFIX => '.gz', 216 SUFFIX => '.gz',
134 }, 217 },
135 depend => { 218 depend => {
136 "EV.c" => "EV/EVAPI.h " 219 "EV.c" => "EV/EVAPI.h "
137 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c " 220 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
138 . "libev/event.h libev/event.c libev/evdns.h libev/evdns.c", 221 . "libev/event.h libev/event.c libev/ev_vars.h libev/ev_wrap.h",
139 }, 222 },
140 INC => "-Ilibev", 223 INC => "-Ilibev",
141 DEFINE => "$DEFINE", 224 DEFINE => "$DEFINE",
142 NAME => "EV", 225 NAME => "EV",
143 LIBS => [$LIBS], 226 LIBS => [$LIBS],
227 PREREQ_PM => {
228 @anyevent,
229 },
144 VERSION_FROM => "EV.pm", 230 VERSION_FROM => "EV.pm",
145 PM => { 231 PM => {
146 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 232 'EV.pm' => '$(INST_LIBDIR)/EV.pm',
147 'EV/AnyEvent.pm' => '$(INST_LIBDIR)/EV/AnyEvent.pm',
148 'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
149 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 233 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
150 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 234 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
151 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 235 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
152 }, 236 },
153); 237);

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