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Comparing EV/Makefile.PL (file contents):
Revision 1.39 by root, Fri Feb 6 20:17:43 2009 UTC vs.
Revision 1.57 by root, Sat Jun 20 11:11:01 2015 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]/));
135 142
136print <<EOF; 143print <<EOF;
137 144
… …
142many BSD systems. Support for kqueue will be detected at runtime, with a 149many BSD systems. Support for kqueue will be detected at runtime, with a
143safe fallback to other methods when it cannot be used. 150safe fallback to other methods when it cannot be used.
144 151
145Note that kqueue is broken on most operating systems, so by default it 152Note that kqueue is broken on most operating systems, so by default it
146won't be used on many platforms, but you can still create your own event 153won't be used on many platforms, but you can still create your own event
147loop with kqueue backend. 154loop with kqueue backend if you ask specifically for it.
148 155
149Here is what we know: 156Here is what we know:
150 157
151NetBSD: partially working in at least 3.1. Yeah! :) 158NetBSD: partially working in at least 3.1 and later. Yeah! :)
152FreeBSD: broken on at least 6.2-STABLE, 159FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
153 sockets *likely* work, ptys definitely don't. 160 sockets *likely* work, ptys definitely don't.
154OpenBSD: reports indicate that it likely doesn't work 161OpenBSD: reports indicate that it likely doesn't work
155 (similar problems as on FreeBSD). 162 (similar problems as on FreeBSD).
156OS X: completely, utterly broken on at least < 10.5. 163OS X: completely, utterly broken on at least <= 10.6.
157 164
158EOF 165EOF
159 166
160my $can_kqueue = -e "/usr/include/sys/event.h"; 167my $can_kqueue = have_inc "sys/event.h";
161$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE}; 168$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
162$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); 169$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
163 170
164print <<EOF; 171print <<EOF;
165 172
… …
170solaris 10 event port interface. Support for event ports will be detected 177solaris 10 event port interface. Support for event ports will be detected
171at runtime, with a safe fallback to other methods when it cannot be used. 178at runtime, with a safe fallback to other methods when it cannot be used.
172 179
173EOF 180EOF
174 181
175$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/)); 182$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/));
176 183
177print <<EOF; 184print <<EOF;
178 185
179*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 186*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
180 187
… …
182EV needs the functions pthread_atfork and clock_gettime. On most systems 189EV needs the functions pthread_atfork and clock_gettime. On most systems
183you need some special libraries for this (such as -lrt and -lpthread). You 190you need some special libraries for this (such as -lrt and -lpthread). You
184can specify additional libraries to provide these calls (and any other 191can specify additional libraries to provide these calls (and any other
185required by EV) now, or accept the default. 192required by EV) now, or accept the default.
186 193
194On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
195to avoid the dependency on libpthread, and directly uses the clock_gettime
196syscall to avoid a dependency on librt.
197
187EOF 198EOF
188 199
189my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : ""; 200my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
190my $librt = $^O =~ /linux/i ? "-lpthread" : "-lpthread -lrt"; 201my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
202my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
191my $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "$librt $solaris_libs"; 203$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
192 204
193 205
194print <<EOF; 206print <<EOF;
195 207
196*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 208*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
197 209
198 210
199A backend of a different kind is the Linux inotify(7) interface, which can 211A backend of a different kind is the Linux inotify(7) interface, which can
200be used to speed up (and reduce resource consumption) of stat watchers. If 212be used to speed up (and reduce resource consumption) of stat watchers. If
201you have it, it is usually a good idea to enable it. 213you have the include file and libc support for it, it is usually a good
214idea to enable it, as kernel availability is detected at runtime.
202 215
203EOF 216EOF
204 217
205my $can_inotify = -e "/usr/include/sys/inotify.h"; 218my $can_inotify = have_inc "sys/inotify.h";
206$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY}; 219$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
207$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); 220$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
208 221
209print <<EOF; 222print <<EOF;
210 223
… …
217your libc must contain the necessary wrapper. Glibc 2.7 and later should 230your libc must contain the necessary wrapper. Glibc 2.7 and later should
218have this wrapper. 231have this wrapper.
219 232
220EOF 233EOF
221 234
222my $can_eventfd = -e "/usr/include/sys/eventfd.h"; 235my $can_eventfd = have_inc "sys/eventfd.h";
223$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD}; 236$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
224$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/)); 237$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
225 238
226print <<EOF; 239print <<EOF;
227 240
228*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 241*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
229 242
230 243
231EOF 244Another sometimes useful bit of functionality is the Linux signalfd, which
245is useful for faster signal handling (don't care). Kernel support for
246this will be probed at runtime, but your libc must contain the necessary
247wrapper. Glibc 2.7 and later should have this wrapper.
232 248
249EOF
250
251my $can_signalfd = have_inc "sys/signalfd.h";
252$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
253$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
254
255print <<EOF;
256
257*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
258
259
260Very rarely, people want to tweak EV even more, e.g. to exclude
261or include certain watcher types or backends. This can be done by adding
262extra -D options here, or via the EV_EXTRA_DEFS environment variable.
263
264For example, if you run into compile problems because of missing memory
265fences (or you just want extra performance), you can tell EV to not support
266smp and threads via -DEV_NO_THREADS.
267
268Normal persons just press enter.
269
270EOF
271
272$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
273
274print <<EOF;
275
276*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
277
278
279EOF
280
233my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 281my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
234 282
235WriteMakefile( 283WriteMakefile(
236 dist => { 284 dist => {
237 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 285 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
238 COMPRESS => 'gzip -9v', 286 COMPRESS => 'gzip -9v',
… …
247 DEFINE => "$DEFINE", 295 DEFINE => "$DEFINE",
248 NAME => "EV", 296 NAME => "EV",
249 LIBS => [$LIBS], 297 LIBS => [$LIBS],
250 PREREQ_PM => { 298 PREREQ_PM => {
251 @anyevent, 299 @anyevent,
300 "common::sense" => 0,
252 }, 301 },
302 CONFIGURE_REQUIRES => { "ExtUtils::MakeMaker" => 6.52, "Canary::Stability" => 0 },
253 VERSION_FROM => "EV.pm", 303 VERSION_FROM => "EV.pm",
254 PM => { 304 PM => {
255 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 305 'EV.pm' => '$(INST_LIB)/EV.pm',
256 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 306 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
257 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 307 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
258 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 308 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
259 'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod', 309 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
260 }, 310 },
261 MAN3PODS => { 311 MAN3PODS => {
262 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)', 312 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
263 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)', 313 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
264 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)', 314 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',

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