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Comparing EV/Makefile.PL (file contents):
Revision 1.42 by root, Sun Jul 19 01:36:34 2009 UTC vs.
Revision 1.59 by root, Sat Jun 22 16:43:05 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 = $ENV{EV_LINUXAIO} if exists $ENV{EV_LINUXAIO};
162$DEFINE .= " -DEV_USE_LINUXAIO=" . (0 + (prompt ("Enable linux aio backend (y/n)?", $can_linuxaio ? "y" : "n") =~ /[yY]/));
135 163
136print <<EOF; 164print <<EOF;
137 165
138*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 166*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
139 167
… …
146won't be used on many platforms, but you can still create your own event 174won't be used on many platforms, but you can still create your own event
147loop with kqueue backend if you ask specifically for it. 175loop with kqueue backend if you ask specifically for it.
148 176
149Here is what we know: 177Here is what we know:
150 178
151NetBSD: partially working in at least 3.1. Yeah! :) 179NetBSD: partially working in at least 3.1 and later. Yeah! :)
152FreeBSD: broken on at least 6.2-STABLE, 180FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
153 sockets *likely* work, ptys definitely don't. 181 sockets *likely* work, ptys definitely don't.
154OpenBSD: reports indicate that it likely doesn't work 182OpenBSD: reports indicate that it likely doesn't work
155 (similar problems as on FreeBSD). 183 (similar problems as on FreeBSD).
156OS X: completely, utterly broken on at least < 10.5. 184OS X: completely, utterly broken on at least <= 10.6.
157 185
158EOF 186EOF
159 187
160my $can_kqueue = -e "/usr/include/sys/event.h"; 188my $can_kqueue = have_inc "sys/event.h";
161$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE}; 189$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
162$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); 190$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
163 191
164print <<EOF; 192print <<EOF;
165 193
… …
170solaris 10 event port interface. Support for event ports will be detected 198solaris 10 event port interface. Support for event ports will be detected
171at runtime, with a safe fallback to other methods when it cannot be used. 199at runtime, with a safe fallback to other methods when it cannot be used.
172 200
173EOF 201EOF
174 202
175$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/)); 203$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/));
176 204
177print <<EOF; 205print <<EOF;
178 206
179*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 207*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
180 208
… …
182EV needs the functions pthread_atfork and clock_gettime. On most systems 210EV needs the functions pthread_atfork and clock_gettime. On most systems
183you need some special libraries for this (such as -lrt and -lpthread). You 211you need some special libraries for this (such as -lrt and -lpthread). You
184can specify additional libraries to provide these calls (and any other 212can specify additional libraries to provide these calls (and any other
185required by EV) now, or accept the default. 213required by EV) now, or accept the default.
186 214
215On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
216to avoid the dependency on libpthread, and directly uses the clock_gettime
217syscall to avoid a dependency on librt.
218
187EOF 219EOF
188 220
189my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : ""; 221my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
190my $librt = $^O =~ /linux/i ? "-lpthread" : "-lpthread -lrt"; 222my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
223my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
191my $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "$librt $solaris_libs"; 224$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
192 225
193 226
194print <<EOF; 227print <<EOF;
195 228
196*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 229*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
… …
201you have the include file and libc support for it, it is usually a good 234you 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. 235idea to enable it, as kernel availability is detected at runtime.
203 236
204EOF 237EOF
205 238
206my $can_inotify = -e "/usr/include/sys/inotify.h"; 239my $can_inotify = have_inc "sys/inotify.h";
207$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY}; 240$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
208$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); 241$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
209 242
210print <<EOF; 243print <<EOF;
211 244
… …
218your libc must contain the necessary wrapper. Glibc 2.7 and later should 251your libc must contain the necessary wrapper. Glibc 2.7 and later should
219have this wrapper. 252have this wrapper.
220 253
221EOF 254EOF
222 255
223my $can_eventfd = -e "/usr/include/sys/eventfd.h"; 256my $can_eventfd = have_inc "sys/eventfd.h";
224$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD}; 257$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
225$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/)); 258$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
226 259
227print <<EOF; 260print <<EOF;
228 261
… …
230 263
231 264
232Another sometimes useful bit of functionality is the Linux signalfd, which 265Another sometimes useful bit of functionality is the Linux signalfd, which
233is useful for faster signal handling (don't care). Kernel support for 266is useful for faster signal handling (don't care). Kernel support for
234this will be probed at runtime, but your libc must contain the necessary 267this will be probed at runtime, but your libc must contain the necessary
235wrapper and include files. Glibc 2.9 and later should have this wrapper. 268wrapper. Glibc 2.7 and later should have this wrapper.
236 269
237EOF 270EOF
238 271
239my $can_signalfd = -e "/usr/include/sys/signalfd.h"; 272my $can_signalfd = have_inc "sys/signalfd.h";
240$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD}; 273$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
241$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/)); 274$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
242 275
243print <<EOF; 276print <<EOF;
244 277
245*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 278*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
246 279
247 280
248EOF 281Very rarely, people want to tweak EV even more, e.g. to exclude
282or include certain watcher types or backends. This can be done by adding
283extra -D options here, or via the EV_EXTRA_DEFS environment variable.
249 284
285For example, if you run into compile problems because of missing memory
286fences (or you just want extra performance), you can tell EV to not support
287smp and threads via -DEV_NO_THREADS.
288
289Normal persons just press enter.
290
291EOF
292
293$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
294
295print <<EOF;
296
297*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
298
299
300EOF
301
250my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 302my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
251 303
252WriteMakefile( 304WriteMakefile(
253 dist => { 305 dist => {
254 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 306 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
255 COMPRESS => 'gzip -9v', 307 COMPRESS => 'gzip -9v',
… …
266 LIBS => [$LIBS], 318 LIBS => [$LIBS],
267 PREREQ_PM => { 319 PREREQ_PM => {
268 @anyevent, 320 @anyevent,
269 "common::sense" => 0, 321 "common::sense" => 0,
270 }, 322 },
323 CONFIGURE_REQUIRES => { "ExtUtils::MakeMaker" => 6.52, "Canary::Stability" => 0 },
271 VERSION_FROM => "EV.pm", 324 VERSION_FROM => "EV.pm",
272 PM => { 325 PM => {
273 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 326 'EV.pm' => '$(INST_LIB)/EV.pm',
274 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 327 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
275 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 328 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
276 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 329 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
277 'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod', 330 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
278 }, 331 },
279 MAN3PODS => { 332 MAN3PODS => {
280 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)', 333 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
281 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)', 334 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
282 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)', 335 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',

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