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Comparing EV/Makefile.PL (file contents):
Revision 1.40 by root, Wed Jun 10 00:52:21 2009 UTC vs.
Revision 1.58 by root, Sat Jun 22 15:50:36 2019 UTC

1use 5.006;
2
3use strict qw(vars subs); 1use strict qw(vars subs);
2use Canary::Stability EV => 1, 5.008002;
4use Config; 3use Config;
5use ExtUtils::MakeMaker; 4use ExtUtils::MakeMaker;
5
6sub have_inc($) {
7 scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth}
8}
9
10my $DEFINE;
6 11
7unless (-e "libev/ev_epoll.c") { 12unless (-e "libev/ev_epoll.c") {
8 print <<EOF; 13 print <<EOF;
9 14
10*** 15***
… …
35 40
36*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 41*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
37 42
38 43
39POSIX optionally offers support for a monotonic clock source. EV 44POSIX optionally offers support for a monotonic clock source. EV
40can take advantage of this clock source to detect time jumps 45can take advantage of this clock source to detect time jumps more
41reliably. Unfortunately, some systems are bound to be broken, so you can 46reliably. Unfortunately, some systems are bound to be broken, so you can
42disable this here: you can completely disable the detection and use of 47disable this here: you can completely disable the detection and use of
43the monotonic clock by answering 'n' here. Support for this clock type 48the monotonic clock by answering 'n' here. Support for this clock type
44will otherwise be autodetected at both compile- and runtime. (this setting 49will otherwise be autodetected at both compile- and runtime. (this setting
45currently affects the use of nanosleep over select as well). 50currently affects the use of nanosleep over select as well).
46 51
47EOF 52EOF
48 53
49my $DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/)); 54unless (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {
55 $DEFINE .= " -DEV_USE_MONOTONIC=0";
56}
50 57
51print <<EOF; 58print <<EOF;
52 59
53*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 60*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
54 61
55 62
56POSIX optionally offers support for a (potentially) high-resolution 63POSIX optionally offers support for a (potentially) high-resolution
57realtime clock interface. In a good implementation, using it is faster 64realtime clock interface. In a good implementation, using it is faster
58than the normal method of using gettimeofday. Unfortunately, this option 65than the normal method of using gettimeofday. Unfortunately, this option
59is also bound to be broken on some systems, and current EV versions do not 66is also bound to be broken on some systems, and current EV versions do not
60actually call C<gettimeofday> very often, so ti defaults to no. 67actually call gettimeofday very often, so it defaults to no.
61 68
62EOF 69EOF
63 70
64$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/)); 71$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
65 72
66print <<EOF; 73print <<EOF;
67 74
68*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 75*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
69 76
70 77
71EV can use various backends with various portability issue. The select 78EV 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 79backend 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 80limited 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 81you 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 82with 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. 83OS, via the next question. I highly recommend keeping it in.
… …
93 100
94EOF 101EOF
95 102
96 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) { 103 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
97 $DEFINE .= " -DEV_SELECT_USE_FD_SET"; 104 $DEFINE .= " -DEV_SELECT_USE_FD_SET";
98 } 105 }
99} else { 106} else {
100 $DEFINE .= " -DEV_USE_SELECT=0"; 107 $DEFINE .= " -DEV_USE_SELECT=0";
101} 108}
102 109
103print <<EOF; 110print <<EOF;
104 111
105*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 112*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
106 113
… …
110doesn't work), but works basically everywhere else. It is recommended to use 117doesn't work), but works basically everywhere else. It is recommended to use
111the default here unless you run into compile problems in ev_poll.c. 118the default here unless you run into compile problems in ev_poll.c.
112 119
113EOF 120EOF
114 121
115$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/)); 122$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/));
116 123
117print <<EOF; 124print <<EOF;
118 125
119*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 126*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
120 127
… …
127fall back to using select when epoll isn't available. If unsure, accept 134fall back to using select when epoll isn't available. If unsure, accept
128the default. 135the default.
129 136
130EOF 137EOF
131 138
132my $can_epoll = -e "/usr/include/sys/epoll.h"; 139my $can_epoll = have_inc "sys/epoll.h";
133$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL}; 140$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
134$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/)); 141$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
142
143print <<EOF;
144
145*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
146
147
148Linux 4.18 introduced another event polling interface, this time using
149the Linux AIO API. While this API is far superior to epoll and almost
150rivals kqueue, it also suffers from the same issues as kqueue typically
151does: only a subset of file types are supported (as of 4.19, I have seen
152eventfd, pipes, sockets files and some devices, but no ttys). It also
153is subject arbitrary system-wide limits imposed on it. Therefore, this
154backend is not used by default, even when it is compiled in, and you have
155to request it explicitly, e.g. with LIBEV_FLAGS=64. If unsure, accept the
156default.
157
158EOF
159
160my $can_linuxaio = have_inc "linux/aio_abi.h";
161$can_linuxaio or die;
162$can_linuxaio = $ENV{EV_LINUXAIO} if exists $ENV{EV_LINUXAIO};
163$DEFINE .= " -DEV_USE_LINUXAIO=" . (0 + (prompt ("Enable linux aio backend (y/n)?", $can_linuxaio ? "y" : "n") =~ /[yY]/));
135 164
136print <<EOF; 165print <<EOF;
137 166
138*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 167*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
139 168
… …
146won't be used on many platforms, but you can still create your own event 175won't be used on many platforms, but you can still create your own event
147loop with kqueue backend if you ask specifically for it. 176loop with kqueue backend if you ask specifically for it.
148 177
149Here is what we know: 178Here is what we know:
150 179
151NetBSD: partially working in at least 3.1. Yeah! :) 180NetBSD: partially working in at least 3.1 and later. Yeah! :)
152FreeBSD: broken on at least 6.2-STABLE, 181FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
153 sockets *likely* work, ptys definitely don't. 182 sockets *likely* work, ptys definitely don't.
154OpenBSD: reports indicate that it likely doesn't work 183OpenBSD: reports indicate that it likely doesn't work
155 (similar problems as on FreeBSD). 184 (similar problems as on FreeBSD).
156OS X: completely, utterly broken on at least < 10.5. 185OS X: completely, utterly broken on at least <= 10.6.
157 186
158EOF 187EOF
159 188
160my $can_kqueue = -e "/usr/include/sys/event.h"; 189my $can_kqueue = have_inc "sys/event.h";
161$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE}; 190$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
162$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); 191$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
163 192
164print <<EOF; 193print <<EOF;
165 194
… …
170solaris 10 event port interface. Support for event ports will be detected 199solaris 10 event port interface. Support for event ports will be detected
171at runtime, with a safe fallback to other methods when it cannot be used. 200at runtime, with a safe fallback to other methods when it cannot be used.
172 201
173EOF 202EOF
174 203
175$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/)); 204$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/));
176 205
177print <<EOF; 206print <<EOF;
178 207
179*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 208*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
180 209
… …
182EV needs the functions pthread_atfork and clock_gettime. On most systems 211EV needs the functions pthread_atfork and clock_gettime. On most systems
183you need some special libraries for this (such as -lrt and -lpthread). You 212you need some special libraries for this (such as -lrt and -lpthread). You
184can specify additional libraries to provide these calls (and any other 213can specify additional libraries to provide these calls (and any other
185required by EV) now, or accept the default. 214required by EV) now, or accept the default.
186 215
216On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
217to avoid the dependency on libpthread, and directly uses the clock_gettime
218syscall to avoid a dependency on librt.
219
187EOF 220EOF
188 221
189my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : ""; 222my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
190my $librt = $^O =~ /linux/i ? "-lpthread" : "-lpthread -lrt"; 223my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
224my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
191my $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "$librt $solaris_libs"; 225$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
192 226
193 227
194print <<EOF; 228print <<EOF;
195 229
196*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 230*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
… …
201you have the include file and libc support for it, it is usually a good 235you have the include file and libc support for it, it is usually a good
202idea to enable it, as kernel availability is detected at runtime. 236idea to enable it, as kernel availability is detected at runtime.
203 237
204EOF 238EOF
205 239
206my $can_inotify = -e "/usr/include/sys/inotify.h"; 240my $can_inotify = have_inc "sys/inotify.h";
207$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY}; 241$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
208$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); 242$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
209 243
210print <<EOF; 244print <<EOF;
211 245
… …
218your libc must contain the necessary wrapper. Glibc 2.7 and later should 252your libc must contain the necessary wrapper. Glibc 2.7 and later should
219have this wrapper. 253have this wrapper.
220 254
221EOF 255EOF
222 256
223my $can_eventfd = -e "/usr/include/sys/eventfd.h"; 257my $can_eventfd = have_inc "sys/eventfd.h";
224$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD}; 258$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
225$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/)); 259$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
226 260
227print <<EOF; 261print <<EOF;
228 262
229*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 263*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
230 264
231 265
232EOF 266Another sometimes useful bit of functionality is the Linux signalfd, which
267is useful for faster signal handling (don't care). Kernel support for
268this will be probed at runtime, but your libc must contain the necessary
269wrapper. Glibc 2.7 and later should have this wrapper.
233 270
271EOF
272
273my $can_signalfd = have_inc "sys/signalfd.h";
274$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
275$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
276
277print <<EOF;
278
279*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
280
281
282Very rarely, people want to tweak EV even more, e.g. to exclude
283or include certain watcher types or backends. This can be done by adding
284extra -D options here, or via the EV_EXTRA_DEFS environment variable.
285
286For example, if you run into compile problems because of missing memory
287fences (or you just want extra performance), you can tell EV to not support
288smp and threads via -DEV_NO_THREADS.
289
290Normal persons just press enter.
291
292EOF
293
294$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
295
296print <<EOF;
297
298*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
299
300
301EOF
302
234my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 303my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
235 304
236WriteMakefile( 305WriteMakefile(
237 dist => { 306 dist => {
238 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 307 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
239 COMPRESS => 'gzip -9v', 308 COMPRESS => 'gzip -9v',
… …
248 DEFINE => "$DEFINE", 317 DEFINE => "$DEFINE",
249 NAME => "EV", 318 NAME => "EV",
250 LIBS => [$LIBS], 319 LIBS => [$LIBS],
251 PREREQ_PM => { 320 PREREQ_PM => {
252 @anyevent, 321 @anyevent,
322 "common::sense" => 0,
253 }, 323 },
324 CONFIGURE_REQUIRES => { "ExtUtils::MakeMaker" => 6.52, "Canary::Stability" => 0 },
254 VERSION_FROM => "EV.pm", 325 VERSION_FROM => "EV.pm",
255 PM => { 326 PM => {
256 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 327 'EV.pm' => '$(INST_LIB)/EV.pm',
257 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 328 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
258 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 329 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
259 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 330 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
260 'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod', 331 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
261 }, 332 },
262 MAN3PODS => { 333 MAN3PODS => {
263 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)', 334 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
264 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)', 335 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
265 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)', 336 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',

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