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Comparing EV/Makefile.PL (file contents):
Revision 1.26 by root, Wed Nov 28 17:57:54 2007 UTC vs.
Revision 1.55 by root, Sat Sep 6 18:42:18 2014 UTC

1use 5.006; 1use 5.008002;
2 2
3use strict qw(vars subs);
3use Config; 4use Config;
4use ExtUtils::MakeMaker; 5use ExtUtils::MakeMaker;
6
7sub have_inc($) {
8 scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth}
9}
5 10
6unless (-e "libev/ev_epoll.c") { 11unless (-e "libev/ev_epoll.c") {
7 print <<EOF; 12 print <<EOF;
8 13
9*** 14***
34 39
35*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 40*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
36 41
37 42
38POSIX optionally offers support for a monotonic clock source. EV 43POSIX optionally offers support for a monotonic clock source. EV
39can take advantage of this clock source to detect time jumps 44can take advantage of this clock source to detect time jumps more
40reliably. Unfortunately, some systems are bound to be broken, so you can 45reliably. Unfortunately, some systems are bound to be broken, so you can
41disable this here: you can completely disable the detection and use of 46disable this here: you can completely disable the detection and use of
42the monotonic clock by answering 'n' here. Support for this clock type 47the monotonic clock by answering 'n' here. Support for this clock type
43will otherwise be autodetected at both compile- and runtime. 48will otherwise be autodetected at both compile- and runtime. (this setting
49currently affects the use of nanosleep over select as well).
44 50
45EOF 51EOF
46 52
47$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/)); 53my $DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
48 54
49print <<EOF; 55print <<EOF;
50 56
51*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 57*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
52 58
53 59
54POSIX optionally offers support for a (potentially) high-resolution 60POSIX optionally offers support for a (potentially) high-resolution
55realtime clock interface. In a good implementation, using it is faster 61realtime clock interface. In a good implementation, using it is faster
56than the normal method of using gettimeofday. Unfortunately, this option 62than the normal method of using gettimeofday. Unfortunately, this option
57is also bound to be broken on some systems, so you can disable use and 63is also bound to be broken on some systems, and current EV versions do not
58probing of this feature altogether here. Otherwise support for this clock 64actually call gettimeofday very often, so it defaults to no.
59type will be autodetected at compiletime.
60 65
61EOF 66EOF
62 67
63$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/)); 68$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
64 69
65print <<EOF; 70print <<EOF;
66 71
67*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 72*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
68 73
69 74
70EV can use various backends with various portability issue. The select 75EV can use various backends with various portability issues. The select
71backend is the most portable and makes for a good fallback, but it can be 76backend 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 77limited 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 78you 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 79with 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. 80OS, via the next question. I highly recommend keeping it in.
92 97
93EOF 98EOF
94 99
95 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) { 100 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
96 $DEFINE .= " -DEV_SELECT_USE_FD_SET"; 101 $DEFINE .= " -DEV_SELECT_USE_FD_SET";
97 } 102 }
98} else { 103} else {
99 $DEFINE .= " -DEV_USE_SELECT=0"; 104 $DEFINE .= " -DEV_USE_SELECT=0";
100} 105}
101 106
102print <<EOF; 107print <<EOF;
103 108
104*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 109*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
105 110
109doesn't work), but works basically everywhere else. It is recommended to use 114doesn't work), but works basically everywhere else. It is recommended to use
110the default here unless you run into compile problems in ev_poll.c. 115the default here unless you run into compile problems in ev_poll.c.
111 116
112EOF 117EOF
113 118
114$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/)); 119$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/));
115 120
116print <<EOF; 121print <<EOF;
117 122
118*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 123*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
119 124
126fall back to using select when epoll isn't available. If unsure, accept 131fall back to using select when epoll isn't available. If unsure, accept
127the default. 132the default.
128 133
129EOF 134EOF
130 135
136my $can_epoll = have_inc "sys/epoll.h";
137$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
131$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/)); 138$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
132 139
133print <<EOF; 140print <<EOF;
134 141
135*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 142*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
136 143
137 144
138Similarly to the epoll backend above, EV can take advantage of kqueue on 145Similarly to the epoll backend above, EV can take advantage of kqueue on
139many BSD systems. Support for kqueue will be detected at runtime, with a 146many BSD systems. Support for kqueue will be detected at runtime, with a
140safe fallback to other methods when it cannot be used. 147safe fallback to other methods when it cannot be used.
141 148
142Note that kqueue is broken on most operating systems, so it defaults to 149Note that kqueue is broken on most operating systems, so by default it
143'n' on everything but netbsd. Here is what we know: 150won't be used on many platforms, but you can still create your own event
151loop with kqueue backend if you ask specifically for it.
144 152
153Here is what we know:
154
145NetBSD: working in at least 3.1. Yeah! :) 155NetBSD: partially working in at least 3.1 and later. Yeah! :)
146FreeBSD: broken on at least 6.2-STABLE, 156FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
147 sockets and pipes *might* work, ptys definitely don't. 157 sockets *likely* work, ptys definitely don't.
148OpenBSD: reports indicate that it likely doesn't work 158OpenBSD: reports indicate that it likely doesn't work
149 (similar problems as on FreeBSD). 159 (similar problems as on FreeBSD).
150OS X: completely, utterly broken on at least <= 10.5. 160OS X: completely, utterly broken on at least <= 10.6.
151 161
152EOF 162EOF
153 163
154my $can_kqueue = $^O =~ /netbsd/i && -e "/usr/include/sys/event.h"; 164my $can_kqueue = have_inc "sys/event.h";
155 165$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
156$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); 166$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
157 167
158print <<EOF; 168print <<EOF;
159 169
160*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 170*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
164solaris 10 event port interface. Support for event ports will be detected 174solaris 10 event port interface. Support for event ports will be detected
165at runtime, with a safe fallback to other methods when it cannot be used. 175at runtime, with a safe fallback to other methods when it cannot be used.
166 176
167EOF 177EOF
168 178
169$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/)); 179$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/));
170 180
171print <<EOF; 181print <<EOF;
172 182
173*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 183*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
174 184
176EV needs the functions pthread_atfork and clock_gettime. On most systems 186EV needs the functions pthread_atfork and clock_gettime. On most systems
177you need some special libraries for this (such as -lrt and -lpthread). You 187you need some special libraries for this (such as -lrt and -lpthread). You
178can specify additional libraries to provide these calls (and any other 188can specify additional libraries to provide these calls (and any other
179required by EV) now, or accept the default. 189required by EV) now, or accept the default.
180 190
181EOF 191On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
192to avoid the dependency on libpthread, and directly uses the clock_gettime
193syscall to avoid a dependency on librt.
182 194
195EOF
196
183$SOLARIS_LIBS = $^O =~ /solaris/ ? " -lsocket -lnsl" : ""; 197my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
184 198my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
199my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
185$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$SOLARIS_LIBS"; 200$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
186 201
187 202
188print <<EOF; 203print <<EOF;
189 204
190*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 205*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
191 206
192 207
193A backend of a different kind is the Linux inotify(7) interface, which can 208A 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 209be used to speed up (and reduce resource consumption) of stat watchers. If
195you have it, it is usually a good idea to enable it. 210you have the include file and libc support for it, it is usually a good
211idea to enable it, as kernel availability is detected at runtime.
196 212
197EOF 213EOF
198 214
199my $can_inotify = -e "/usr/include/sys/inotify.h"; 215my $can_inotify = have_inc "sys/inotify.h";
200 216$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
201$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); 217$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
202 218
203print <<EOF; 219print <<EOF;
204 220
205*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 221*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
206 222
207 223
208EOF 224Another useful bit of functionality is the Linux eventfd, which is useful
225for faster signal handling (don't care) and intra-thread communications
226(more relevant). Kernel support for this will be probed at runtime, but
227your libc must contain the necessary wrapper. Glibc 2.7 and later should
228have this wrapper.
209 229
230EOF
231
232my $can_eventfd = have_inc "sys/eventfd.h";
233$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
234$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
235
236print <<EOF;
237
238*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
239
240
241Another sometimes useful bit of functionality is the Linux signalfd, which
242is useful for faster signal handling (don't care). Kernel support for
243this will be probed at runtime, but your libc must contain the necessary
244wrapper. Glibc 2.7 and later should have this wrapper.
245
246EOF
247
248my $can_signalfd = have_inc "sys/signalfd.h";
249$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
250$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
251
252print <<EOF;
253
254*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
255
256
257Very rarely, people want to tweak EV even more, e.g. to exclude
258or include certain watcher types or backends. This can be done by adding
259extra -D options here, or via the EV_EXTRA_DEFS environment variable.
260
261For example, if you run into compile problems because of missing memory
262fences (or you just want extra performance), you can tell EV to not support
263smp and threads via -DEV_NO_THREADS.
264
265Normal persons just press enter.
266
267EOF
268
269$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
270
271print <<EOF;
272
273*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
274
275
276EOF
277
210my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 278my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
211 279
212WriteMakefile( 280WriteMakefile(
213 dist => { 281 dist => {
214 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 282 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
215 COMPRESS => 'gzip -9v', 283 COMPRESS => 'gzip -9v',
216 SUFFIX => '.gz', 284 SUFFIX => '.gz',
217 }, 285 },
218 depend => { 286 depend => {
219 "EV.c" => "EV/EVAPI.h " 287 "EV.c" => "EV/EVAPI.h "
220 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c " 288 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
221 . "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h", 289 . "libev/ev_vars.h libev/ev_wrap.h",
222 }, 290 },
223 INC => "-Ilibev", 291 INC => "-Ilibev",
224 DEFINE => "$DEFINE", 292 DEFINE => "$DEFINE",
225 NAME => "EV", 293 NAME => "EV",
226 LIBS => [$LIBS], 294 LIBS => [$LIBS],
227 PREREQ_PM => { 295 PREREQ_PM => {
228 @anyevent, 296 @anyevent,
297 "common::sense" => 0,
229 }, 298 },
230 VERSION_FROM => "EV.pm", 299 VERSION_FROM => "EV.pm",
231 PM => { 300 PM => {
232 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 301 'EV.pm' => '$(INST_LIB)/EV.pm',
233 'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
234 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 302 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
235 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 303 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
236 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 304 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
305 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
237 }, 306 },
307 MAN3PODS => {
308 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
309 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
310 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
311 },
238); 312);
239 313
240 314

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