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Comparing EV/Makefile.PL (file contents):
Revision 1.13 by root, Thu Nov 1 17:45:30 2007 UTC vs.
Revision 1.50 by root, Thu Dec 30 07:43:03 2010 UTC

1use 5.006; 1use 5.008002;
2 2
3use strict qw(vars subs);
3use Config; 4use Config;
4use ExtUtils::MakeMaker; 5use ExtUtils::MakeMaker;
5
6 6
7unless (-e "libev/ev_epoll.c") { 7unless (-e "libev/ev_epoll.c") {
8 print <<EOF; 8 print <<EOF;
9 9
10*** 10***
17 exit 1; 17 exit 1;
18} 18}
19 19
20print <<EOF; 20print <<EOF;
21 21
22
23*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 22*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
23
24 24
25Welcome to EV configuration. If you are in a hurry, just press return here 25Welcome to EV configuration. If you are in a hurry, just press return here
26and hope for the best. The defaults should usually do. 26and hope for the best. The defaults should usually do.
27 27
28EOF 28EOF
31 $ENV{PERL_MM_USE_DEFAULT} = 1; 31 $ENV{PERL_MM_USE_DEFAULT} = 1;
32} 32}
33 33
34print <<EOF; 34print <<EOF;
35 35
36
37*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 36*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
38 37
38
39POSIX optionally offers support for a monotonic clock source. EV can 39POSIX optionally offers support for a monotonic clock source. EV
40take advantage of this clock source to detect time jumps reliably. This 40can take advantage of this clock source to detect time jumps more
41will usually slow down EV a tiny amount, but this is usually
42well-invested. Unfortunately, some systems are bound to be broken, so 41reliably. Unfortunately, some systems are bound to be broken, so you can
43you can disable this here. Whatever your reasons, you can completely 42disable this here: you can completely disable the detection and use of
44disable the detection and use of this monotonic clock by answering 'n' 43the monotonic clock by answering 'n' here. Support for this clock type
45here. Support for this clock type will otherwise be autodetected at both 44will otherwise be autodetected at both compile- and runtime. (this setting
46compile- and runtime. 45currently affects the use of nanosleep over select as well).
47 46
48EOF 47EOF
49 48
50if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) { 49my $DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
51 $DEFINE .= " -DEV_USE_MONOTONIC";
52}
53 50
54print <<EOF; 51print <<EOF;
55 52
56
57*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 53*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
54
58 55
59POSIX optionally offers support for a (potentially) high-resolution 56POSIX optionally offers support for a (potentially) high-resolution
60realtime clock interface. In a good implementation, using it is faster 57realtime clock interface. In a good implementation, using it is faster
61than the normal method of using gettimeofday. Unfortunately, this option 58than the normal method of using gettimeofday. Unfortunately, this option
62is also bound to be broken on some systems, so you can disable use and 59is also bound to be broken on some systems, and current EV versions do not
63probing of this feature altogether here. Otherwise support for this clock 60actually call gettimeofday very often, so it defaults to no.
64type will be autodetected at compiletime.
65 61
66EOF 62EOF
67 63
68if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) { 64$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
65
66print <<EOF;
67
68*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
69
70
71EV can use various backends with various portability issues. The select
72backend is the most portable and makes for a good fallback, but it can be
73limited to a low number of file descriptors and/or might not compile. If
74you have problems with compiling ev_select.c, you might try to play around
75with disabling it here, or forcing it to use the fd_set provided by your
76OS, via the next question. I highly recommend keeping it in.
77
78EOF
79
80if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
69 $DEFINE .= " -DEV_USE_REALTIME=0"; 81 $DEFINE .= " -DEV_USE_SELECT=1";
70}
71 82
72print <<EOF; 83 print <<EOF;
73 84
74
75*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 85*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
86
87
88The select backend can operate in two modes. One uses the system-provided
89fd_set and is usually limited to 1024 file descriptors (64 on windows),
90the other requires your header files to define NFDBITS and declare a
91suitable fd_mask type. If you run into problems compiling ev_select.c, you
92can try forcing the use of the system fd_set here.
93
94EOF
95
96 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
97 $DEFINE .= " -DEV_SELECT_USE_FD_SET";
98 }
99} else {
100 $DEFINE .= " -DEV_USE_SELECT=0";
101}
102
103print <<EOF;
104
105*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
106
107
108The second very portable backend is poll(2). It does not exist on windows
109and various versions of Mac OS X (and on the other versions it simply
110doesn't work), but works basically everywhere else. It is recommended to use
111the default here unless you run into compile problems in ev_poll.c.
112
113EOF
114
115$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/));
116
117print <<EOF;
118
119*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
120
121
122Select and poll make it hard to write efficient servers, especially if the
123number of active connections is much lower than the watched ones. GNU/Linux
124systems have a more scalable method called "epoll", which EV can use. For
125this to work, both your kernel and glibc have to support epoll, but if you
126can compile it, the detection will be done at runtime, and EV will safely
127fall back to using select when epoll isn't available. If unsure, accept
128the default.
129
130EOF
131
132my $can_epoll = -e "/usr/include/sys/epoll.h";
133$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
134$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
135
136print <<EOF;
137
138*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
139
140
141Similarly to the epoll backend above, EV can take advantage of kqueue on
142many BSD systems. Support for kqueue will be detected at runtime, with a
143safe fallback to other methods when it cannot be used.
144
145Note that kqueue is broken on most operating systems, so by default it
146won't be used on many platforms, but you can still create your own event
147loop with kqueue backend if you ask specifically for it.
148
149Here is what we know:
150
151NetBSD: partially working in at least 3.1 and later. Yeah! :)
152FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
153 sockets *likely* work, ptys definitely don't.
154OpenBSD: reports indicate that it likely doesn't work
155 (similar problems as on FreeBSD).
156OS X: completely, utterly broken on at least <= 10.6.
157
158EOF
159
160my $can_kqueue = -e "/usr/include/sys/event.h";
161$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
162$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
163
164print <<EOF;
165
166*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
167
168
169Similarly to the kqueue backend above, EV can take advantage of the
170solaris 10 event port interface. Support for event ports will be detected
171at runtime, with a safe fallback to other methods when it cannot be used.
172
173EOF
174
175$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/));
176
177print <<EOF;
178
179*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
180
76 181
77EV needs the functions pthread_atfork and clock_gettime. On most systems 182EV needs the functions pthread_atfork and clock_gettime. On most systems
78you need some special libraries for this (such as -lrt and -lpthread). You can 183you need some special libraries for this (such as -lrt and -lpthread). You
79specify additional libraries to provide these calls now, or accept the default. 184can specify additional libraries to provide these calls (and any other
185required by EV) now, or accept the default.
80 186
81EOF 187EOF
82 188
189my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
190#my $librt = $^O =~ /linux/i ? "-lpthread" : "-lpthread -lrt";
191my $librt = "-lpthread -lrt";
83$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt"; 192my $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "$librt $solaris_libs";
84 193
85 194
86print <<EOF; 195print <<EOF;
87 196
88
89*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 197*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
90 198
91EV needs the functions pthread_atfork and clock_gettime. On most systems
92you need some special libraries for this (such as -lrt and -lpthread). You can
93specify additional libraries to provide these calls now, or accept the default.
94 199
95EOF 200A backend of a different kind is the Linux inotify(7) interface, which can
201be used to speed up (and reduce resource consumption) of stat watchers. If
202you have the include file and libc support for it, it is usually a good
203idea to enable it, as kernel availability is detected at runtime.
96 204
97if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) {
98 $DEFINE .= " -DEV_USE_EPOLL";
99}
100
101print <<EOF;
102
103
104*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
105
106EOF 205EOF
206
207my $can_inotify = -e "/usr/include/sys/inotify.h";
208$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
209$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
210
211print <<EOF;
212
213*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
214
215
216Another useful bit of functionality is the Linux eventfd, which is useful
217for faster signal handling (don't care) and intra-thread communications
218(more relevant). Kernel support for this will be probed at runtime, but
219your libc must contain the necessary wrapper. Glibc 2.7 and later should
220have this wrapper.
221
222EOF
223
224my $can_eventfd = -e "/usr/include/sys/eventfd.h";
225$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
226$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
227
228print <<EOF;
229
230*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
231
232
233Another sometimes useful bit of functionality is the Linux signalfd, which
234is useful for faster signal handling (don't care). Kernel support for
235this will be probed at runtime, but your libc must contain the necessary
236wrapper. Glibc 2.7 and later should have this wrapper.
237
238EOF
239
240my $can_signalfd = -e "/usr/include/sys/signalfd.h";
241$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
242$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
243
244print <<EOF;
245
246*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
247
248
249Very rarely, people want to tweak EV even more, e.g. to exclude
250or incldue certain watcher types or backends. Thisc na be done by adding
251extra -D options here, or via the EV_EXTRA_DEFS environment variable.
252Normal persons just press enter.
253
254EOF
255
256$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
257
258print <<EOF;
259
260*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
261
262
263EOF
264
265my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
107 266
108WriteMakefile( 267WriteMakefile(
109 dist => { 268 dist => {
110 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 269 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
111 COMPRESS => 'gzip -9v', 270 COMPRESS => 'gzip -9v',
112 SUFFIX => '.gz', 271 SUFFIX => '.gz',
113 }, 272 },
114 depend => { 273 depend => {
115 "EV.c" => "EV/EVAPI.h " 274 "EV.c" => "EV/EVAPI.h "
116 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c " 275 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
117 . "libev/event.h libev/event.c libev/evdns.h libev/evdns.c", 276 . "libev/ev_vars.h libev/ev_wrap.h",
118 }, 277 },
119 INC => "-Ilibev", 278 INC => "-Ilibev",
120 DEFINE => "$DEFINE", 279 DEFINE => "$DEFINE",
121 NAME => "EV", 280 NAME => "EV",
122 LIBS => [$LIBS], 281 LIBS => [$LIBS],
282 PREREQ_PM => {
283 @anyevent,
284 "common::sense" => 0,
285 },
123 VERSION_FROM => "EV.pm", 286 VERSION_FROM => "EV.pm",
124 PM => { 287 PM => {
125 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 288 'EV.pm' => '$(INST_LIBDIR)/EV.pm',
126 'EV/AnyEvent.pm' => '$(INST_LIBDIR)/EV/AnyEvent.pm',
127 'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
128 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 289 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
129 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 290 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
130 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 291 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
292 'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod',
131 }, 293 },
294 MAN3PODS => {
295 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
296 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
297 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
298 },
132); 299);
133 300
134 301

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