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Comparing EV/Makefile.PL (file contents):
Revision 1.45 by root, Fri Oct 29 19:12:19 2010 UTC vs.
Revision 1.60 by root, Mon Jun 24 21:38:08 2019 UTC

1use 5.008002;
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***
… …
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
… …
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 $ENV{EV_LINUXAIO};
162$can_linuxaio = 0 + (prompt ("Enable linux aio backend (y/n)?", $can_linuxaio ? "y" : "n") =~ /[yY]/);
163$DEFINE .= " -DEV_USE_LINUXAIO=$can_linuxaio";
164
165if ($can_linuxaio) {
166print <<EOF;
167
168*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
169
170
171The previously mentioned Linux AIO backend is experimental and will not
172be used unless requested explicitly. You can, howeer, choose to make ti a
173recommended basckend, which means it will be chosen if available even when
174not explicitly asked for, in preference to epoll on GNU/Linux. This option
175is likely temporary. When unsure, accept the default.
176
177EOF
178
179my $recommend_linuxaio = 0;
180$recommend_linuxaio = $ENV{EV_RECOMMEND_LINUXAIO} if exists $ENV{EV_RECOMMEND_LINUXAIO};
181$recommend_linuxaio = 0 + (prompt ("Treat linux aio as a recommended backend (y/n)?", $recommend_linuxaio ? "y" : "n") =~ /[yY]/);
182$DEFINE .= " -DEV_RECOMMEND_LINUXAIO=$recommend_linuxaio";
183}
135 184
136print <<EOF; 185print <<EOF;
137 186
138*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 187*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
139 188
… …
155 (similar problems as on FreeBSD). 204 (similar problems as on FreeBSD).
156OS X: completely, utterly broken on at least <= 10.6. 205OS X: completely, utterly broken on at least <= 10.6.
157 206
158EOF 207EOF
159 208
160my $can_kqueue = -e "/usr/include/sys/event.h"; 209my $can_kqueue = have_inc "sys/event.h";
161$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE}; 210$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
162$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); 211$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
163 212
164print <<EOF; 213print <<EOF;
165 214
… …
170solaris 10 event port interface. Support for event ports will be detected 219solaris 10 event port interface. Support for event ports will be detected
171at runtime, with a safe fallback to other methods when it cannot be used. 220at runtime, with a safe fallback to other methods when it cannot be used.
172 221
173EOF 222EOF
174 223
175$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/)); 224$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/));
176 225
177print <<EOF; 226print <<EOF;
178 227
179*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 228*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
180 229
… …
182EV needs the functions pthread_atfork and clock_gettime. On most systems 231EV needs the functions pthread_atfork and clock_gettime. On most systems
183you need some special libraries for this (such as -lrt and -lpthread). You 232you need some special libraries for this (such as -lrt and -lpthread). You
184can specify additional libraries to provide these calls (and any other 233can specify additional libraries to provide these calls (and any other
185required by EV) now, or accept the default. 234required by EV) now, or accept the default.
186 235
236On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
237to avoid the dependency on libpthread, and directly uses the clock_gettime
238syscall to avoid a dependency on librt.
239
187EOF 240EOF
188 241
189my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : ""; 242my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
190my $librt = $^O =~ /linux/i ? "-lpthread" : "-lpthread -lrt"; 243my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
244my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
191my $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "$librt $solaris_libs"; 245$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
192 246
193 247
194print <<EOF; 248print <<EOF;
195 249
196*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 250*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
… …
201you have the include file and libc support for it, it is usually a good 255you 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. 256idea to enable it, as kernel availability is detected at runtime.
203 257
204EOF 258EOF
205 259
206my $can_inotify = -e "/usr/include/sys/inotify.h"; 260my $can_inotify = have_inc "sys/inotify.h";
207$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY}; 261$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
208$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); 262$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
209 263
210print <<EOF; 264print <<EOF;
211 265
… …
218your libc must contain the necessary wrapper. Glibc 2.7 and later should 272your libc must contain the necessary wrapper. Glibc 2.7 and later should
219have this wrapper. 273have this wrapper.
220 274
221EOF 275EOF
222 276
223my $can_eventfd = -e "/usr/include/sys/eventfd.h"; 277my $can_eventfd = have_inc "sys/eventfd.h";
224$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD}; 278$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
225$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/)); 279$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
226 280
227print <<EOF; 281print <<EOF;
228 282
… …
234this will be probed at runtime, but your libc must contain the necessary 288this will be probed at runtime, but your libc must contain the necessary
235wrapper. Glibc 2.7 and later should have this wrapper. 289wrapper. Glibc 2.7 and later should have this wrapper.
236 290
237EOF 291EOF
238 292
239my $can_signalfd = -e "/usr/include/sys/signalfd.h"; 293my $can_signalfd = have_inc "sys/signalfd.h";
240$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD}; 294$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
241$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/)); 295$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
242 296
243print <<EOF; 297print <<EOF;
244 298
245*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 299*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
246 300
247 301
248EOF 302Very rarely, people want to tweak EV even more, e.g. to exclude
303or include certain watcher types or backends. This can be done by adding
304extra -D options here, or via the EV_EXTRA_DEFS environment variable.
249 305
306For example, if you run into compile problems because of missing memory
307fences (or you just want extra performance), you can tell EV to not support
308smp and threads via -DEV_NO_THREADS.
309
310Normal persons just press enter.
311
312EOF
313
314$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
315
316print <<EOF;
317
318*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
319
320
321EOF
322
250my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 323my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
251 324
252WriteMakefile( 325WriteMakefile(
253 dist => { 326 dist => {
254 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 327 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
255 COMPRESS => 'gzip -9v', 328 COMPRESS => 'gzip -9v',
… …
266 LIBS => [$LIBS], 339 LIBS => [$LIBS],
267 PREREQ_PM => { 340 PREREQ_PM => {
268 @anyevent, 341 @anyevent,
269 "common::sense" => 0, 342 "common::sense" => 0,
270 }, 343 },
344 CONFIGURE_REQUIRES => { "ExtUtils::MakeMaker" => 6.52, "Canary::Stability" => 0 },
271 VERSION_FROM => "EV.pm", 345 VERSION_FROM => "EV.pm",
272 PM => { 346 PM => {
273 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 347 'EV.pm' => '$(INST_LIB)/EV.pm',
274 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 348 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
275 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 349 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
276 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 350 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
277 'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod', 351 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
278 }, 352 },
279 MAN3PODS => { 353 MAN3PODS => {
280 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)', 354 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
281 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)', 355 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
282 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)', 356 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',

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