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Comparing EV/Makefile.PL (file contents):
Revision 1.30 by root, Sat Dec 22 12:05:42 2007 UTC vs.
Revision 1.53 by root, Tue Jan 15 21:49:38 2013 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
6unless (-e "libev/ev_epoll.c") { 7unless (-e "libev/ev_epoll.c") {
7 print <<EOF; 8 print <<EOF;
34 35
35*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 36*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
36 37
37 38
38POSIX optionally offers support for a monotonic clock source. EV 39POSIX optionally offers support for a monotonic clock source. EV
39can take advantage of this clock source to detect time jumps 40can take advantage of this clock source to detect time jumps more
40reliably. Unfortunately, some systems are bound to be broken, so you can 41reliably. Unfortunately, some systems are bound to be broken, so you can
41disable this here: you can completely disable the detection and use of 42disable this here: you can completely disable the detection and use of
42the monotonic clock by answering 'n' here. Support for this clock type 43the monotonic clock by answering 'n' here. Support for this clock type
43will otherwise be autodetected at both compile- and runtime. (this setting 44will otherwise be autodetected at both compile- and runtime. (this setting
44currently affects the use of nanosleep over select as well). 45currently affects the use of nanosleep over select as well).
45 46
46EOF 47EOF
47 48
48$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/)); 49my $DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
49 50
50print <<EOF; 51print <<EOF;
51 52
52*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 53*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
53 54
54 55
55POSIX optionally offers support for a (potentially) high-resolution 56POSIX optionally offers support for a (potentially) high-resolution
56realtime clock interface. In a good implementation, using it is faster 57realtime clock interface. In a good implementation, using it is faster
57than the normal method of using gettimeofday. Unfortunately, this option 58than the normal method of using gettimeofday. Unfortunately, this option
58is also bound to be broken on some systems, so you can disable use and 59is also bound to be broken on some systems, and current EV versions do not
59probing of this feature altogether here. Otherwise support for this clock 60actually call gettimeofday very often, so it defaults to no.
60type will be autodetected at compiletime.
61 61
62EOF 62EOF
63 63
64$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (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 65
66print <<EOF; 66print <<EOF;
67 67
68*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 68*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
69 69
70 70
71EV can use various backends with various portability issue. The select 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 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 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 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 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. 76OS, via the next question. I highly recommend keeping it in.
127fall back to using select when epoll isn't available. If unsure, accept 127fall back to using select when epoll isn't available. If unsure, accept
128the default. 128the default.
129 129
130EOF 130EOF
131 131
132my $can_epoll = -e "/usr/include/sys/epoll.h";
133$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
132$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/)); 134$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
133 135
134print <<EOF; 136print <<EOF;
135 137
136*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 138*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
137 139
138 140
139Similarly to the epoll backend above, EV can take advantage of kqueue on 141Similarly to the epoll backend above, EV can take advantage of kqueue on
140many BSD systems. Support for kqueue will be detected at runtime, with a 142many BSD systems. Support for kqueue will be detected at runtime, with a
141safe fallback to other methods when it cannot be used. 143safe fallback to other methods when it cannot be used.
142 144
143Note that kqueue is broken on most operating systems, so it defaults to 145Note that kqueue is broken on most operating systems, so by default it
144'n' on everything but netbsd. Here is what we know: 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.
145 148
149Here is what we know:
150
146NetBSD: partially working in at least 3.1. Yeah! :) 151NetBSD: partially working in at least 3.1 and later. Yeah! :)
147FreeBSD: broken on at least 6.2-STABLE, 152FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
148 sockets *likely* work, ptys definitely don't. 153 sockets *likely* work, ptys definitely don't.
149OpenBSD: reports indicate that it likely doesn't work 154OpenBSD: reports indicate that it likely doesn't work
150 (similar problems as on FreeBSD). 155 (similar problems as on FreeBSD).
151OS X: completely, utterly broken on at least < 10.5. 156OS X: completely, utterly broken on at least <= 10.6.
152 157
153EOF 158EOF
154 159
155my $can_kqueue = -e "/usr/include/sys/event.h"; 160my $can_kqueue = -e "/usr/include/sys/event.h";
156 161$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
157$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); 162$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
158 163
159print <<EOF; 164print <<EOF;
160 165
161*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 166*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
177EV needs the functions pthread_atfork and clock_gettime. On most systems 182EV needs the functions pthread_atfork and clock_gettime. On most systems
178you need some special libraries for this (such as -lrt and -lpthread). You 183you need some special libraries for this (such as -lrt and -lpthread). You
179can specify additional libraries to provide these calls (and any other 184can specify additional libraries to provide these calls (and any other
180required by EV) now, or accept the default. 185required by EV) now, or accept the default.
181 186
182EOF 187On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
188to avoid the dependency on libpthread, and directly uses the clock_gettime
189syscall to avoid a dependency on librt.
183 190
191EOF
192
184$SOLARIS_LIBS = $^O =~ /solaris/ ? " -lsocket -lnsl" : ""; 193my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
185 194my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
195my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
186$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$SOLARIS_LIBS"; 196$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
187 197
188 198
189print <<EOF; 199print <<EOF;
190 200
191*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 201*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
192 202
193 203
194A backend of a different kind is the Linux inotify(7) interface, which can 204A backend of a different kind is the Linux inotify(7) interface, which can
195be used to speed up (and reduce resource consumption) of stat watchers. If 205be used to speed up (and reduce resource consumption) of stat watchers. If
196you have it, it is usually a good idea to enable it. 206you have the include file and libc support for it, it is usually a good
207idea to enable it, as kernel availability is detected at runtime.
197 208
198EOF 209EOF
199 210
200my $can_inotify = -e "/usr/include/sys/inotify.h"; 211my $can_inotify = -e "/usr/include/sys/inotify.h";
201 212$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
202$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); 213$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
203 214
204print <<EOF; 215print <<EOF;
205 216
206*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 217*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
207 218
208 219
209EOF 220Another useful bit of functionality is the Linux eventfd, which is useful
221for faster signal handling (don't care) and intra-thread communications
222(more relevant). Kernel support for this will be probed at runtime, but
223your libc must contain the necessary wrapper. Glibc 2.7 and later should
224have this wrapper.
210 225
226EOF
227
228my $can_eventfd = -e "/usr/include/sys/eventfd.h";
229$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
230$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
231
232print <<EOF;
233
234*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
235
236
237Another sometimes useful bit of functionality is the Linux signalfd, which
238is useful for faster signal handling (don't care). Kernel support for
239this will be probed at runtime, but your libc must contain the necessary
240wrapper. Glibc 2.7 and later should have this wrapper.
241
242EOF
243
244my $can_signalfd = -e "/usr/include/sys/signalfd.h";
245$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
246$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
247
248print <<EOF;
249
250*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
251
252
253Very rarely, people want to tweak EV even more, e.g. to exclude
254or include certain watcher types or backends. This can be done by adding
255extra -D options here, or via the EV_EXTRA_DEFS environment variable.
256
257For example, if you run into compile problems because of missing memory
258fences (or you just want extra performance), you can tell EV to not support
259smp and threads via -DEV_NO_THREADS.
260
261Normal persons just press enter.
262
263EOF
264
265$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
266
267print <<EOF;
268
269*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
270
271
272EOF
273
211my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 274my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
212 275
213WriteMakefile( 276WriteMakefile(
214 dist => { 277 dist => {
215 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 278 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
216 COMPRESS => 'gzip -9v', 279 COMPRESS => 'gzip -9v',
225 DEFINE => "$DEFINE", 288 DEFINE => "$DEFINE",
226 NAME => "EV", 289 NAME => "EV",
227 LIBS => [$LIBS], 290 LIBS => [$LIBS],
228 PREREQ_PM => { 291 PREREQ_PM => {
229 @anyevent, 292 @anyevent,
293 "common::sense" => 0,
230 }, 294 },
231 VERSION_FROM => "EV.pm", 295 VERSION_FROM => "EV.pm",
232 PM => { 296 PM => {
233 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 297 'EV.pm' => '$(INST_LIBDIR)/EV.pm',
234 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 298 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
235 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 299 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
236 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 300 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
301 'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod',
237 }, 302 },
303 MAN3PODS => {
304 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
305 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
306 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
307 },
238); 308);
239 309
240 310

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