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Comparing EV/Makefile.PL (file contents):
Revision 1.27 by root, Sat Dec 1 22:51:34 2007 UTC vs.
Revision 1.56 by root, Sat Sep 6 19:03:28 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}
10
11my $DEFINE;
5 12
6unless (-e "libev/ev_epoll.c") { 13unless (-e "libev/ev_epoll.c") {
7 print <<EOF; 14 print <<EOF;
8 15
9*** 16***
34 41
35*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 42*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
36 43
37 44
38POSIX optionally offers support for a monotonic clock source. EV 45POSIX optionally offers support for a monotonic clock source. EV
39can take advantage of this clock source to detect time jumps 46can take advantage of this clock source to detect time jumps more
40reliably. Unfortunately, some systems are bound to be broken, so you can 47reliably. Unfortunately, some systems are bound to be broken, so you can
41disable this here: you can completely disable the detection and use of 48disable this here: you can completely disable the detection and use of
42the monotonic clock by answering 'n' here. Support for this clock type 49the monotonic clock by answering 'n' here. Support for this clock type
43will otherwise be autodetected at both compile- and runtime. 50will otherwise be autodetected at both compile- and runtime. (this setting
51currently affects the use of nanosleep over select as well).
44 52
45EOF 53EOF
46 54
47$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/)); 55unless (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {
56 $DEFINE .= " -DEV_USE_MONOTONIC=0";
57}
48 58
49print <<EOF; 59print <<EOF;
50 60
51*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 61*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
52 62
53 63
54POSIX optionally offers support for a (potentially) high-resolution 64POSIX optionally offers support for a (potentially) high-resolution
55realtime clock interface. In a good implementation, using it is faster 65realtime clock interface. In a good implementation, using it is faster
56than the normal method of using gettimeofday. Unfortunately, this option 66than the normal method of using gettimeofday. Unfortunately, this option
57is also bound to be broken on some systems, so you can disable use and 67is also bound to be broken on some systems, and current EV versions do not
58probing of this feature altogether here. Otherwise support for this clock 68actually call gettimeofday very often, so it defaults to no.
59type will be autodetected at compiletime.
60 69
61EOF 70EOF
62 71
63$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/)); 72$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
64 73
65print <<EOF; 74print <<EOF;
66 75
67*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 76*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
68 77
69 78
70EV can use various backends with various portability issue. The select 79EV 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 80backend 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 81limited 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 82you 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 83with 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. 84OS, via the next question. I highly recommend keeping it in.
92 101
93EOF 102EOF
94 103
95 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) { 104 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
96 $DEFINE .= " -DEV_SELECT_USE_FD_SET"; 105 $DEFINE .= " -DEV_SELECT_USE_FD_SET";
97 } 106 }
98} else { 107} else {
99 $DEFINE .= " -DEV_USE_SELECT=0"; 108 $DEFINE .= " -DEV_USE_SELECT=0";
100} 109}
101 110
102print <<EOF; 111print <<EOF;
103 112
104*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 113*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
105 114
109doesn't work), but works basically everywhere else. It is recommended to use 118doesn't work), but works basically everywhere else. It is recommended to use
110the default here unless you run into compile problems in ev_poll.c. 119the default here unless you run into compile problems in ev_poll.c.
111 120
112EOF 121EOF
113 122
114$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/)); 123$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/));
115 124
116print <<EOF; 125print <<EOF;
117 126
118*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 127*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
119 128
126fall back to using select when epoll isn't available. If unsure, accept 135fall back to using select when epoll isn't available. If unsure, accept
127the default. 136the default.
128 137
129EOF 138EOF
130 139
140my $can_epoll = have_inc "sys/epoll.h";
141$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]/)); 142$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
132 143
133print <<EOF; 144print <<EOF;
134 145
135*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 146*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
136 147
137 148
138Similarly to the epoll backend above, EV can take advantage of kqueue on 149Similarly 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 150many BSD systems. Support for kqueue will be detected at runtime, with a
140safe fallback to other methods when it cannot be used. 151safe fallback to other methods when it cannot be used.
141 152
142Note that kqueue is broken on most operating systems, so it defaults to 153Note that kqueue is broken on most operating systems, so by default it
143'n' on everything but netbsd. Here is what we know: 154won't be used on many platforms, but you can still create your own event
155loop with kqueue backend if you ask specifically for it.
144 156
157Here is what we know:
158
145NetBSD: working in at least 3.1. Yeah! :) 159NetBSD: partially working in at least 3.1 and later. Yeah! :)
146FreeBSD: broken on at least 6.2-STABLE, 160FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
147 sockets and pipes *might* work, ptys definitely don't. 161 sockets *likely* work, ptys definitely don't.
148OpenBSD: reports indicate that it likely doesn't work 162OpenBSD: reports indicate that it likely doesn't work
149 (similar problems as on FreeBSD). 163 (similar problems as on FreeBSD).
150OS X: completely, utterly broken on at least <= 10.5. 164OS X: completely, utterly broken on at least <= 10.6.
151 165
152EOF 166EOF
153 167
154my $can_kqueue = $^O =~ /netbsd/i && -e "/usr/include/sys/event.h"; 168my $can_kqueue = have_inc "sys/event.h";
155 169$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
156$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); 170$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
157 171
158print <<EOF; 172print <<EOF;
159 173
160*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 174*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
164solaris 10 event port interface. Support for event ports will be detected 178solaris 10 event port interface. Support for event ports will be detected
165at runtime, with a safe fallback to other methods when it cannot be used. 179at runtime, with a safe fallback to other methods when it cannot be used.
166 180
167EOF 181EOF
168 182
169$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/)); 183$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/));
170 184
171print <<EOF; 185print <<EOF;
172 186
173*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 187*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
174 188
176EV needs the functions pthread_atfork and clock_gettime. On most systems 190EV needs the functions pthread_atfork and clock_gettime. On most systems
177you need some special libraries for this (such as -lrt and -lpthread). You 191you need some special libraries for this (such as -lrt and -lpthread). You
178can specify additional libraries to provide these calls (and any other 192can specify additional libraries to provide these calls (and any other
179required by EV) now, or accept the default. 193required by EV) now, or accept the default.
180 194
181EOF 195On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
196to avoid the dependency on libpthread, and directly uses the clock_gettime
197syscall to avoid a dependency on librt.
182 198
199EOF
200
183$SOLARIS_LIBS = $^O =~ /solaris/ ? " -lsocket -lnsl" : ""; 201my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
184 202my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
203my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
185$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$SOLARIS_LIBS"; 204$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
186 205
187 206
188print <<EOF; 207print <<EOF;
189 208
190*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 209*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
191 210
192 211
193A backend of a different kind is the Linux inotify(7) interface, which can 212A 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 213be used to speed up (and reduce resource consumption) of stat watchers. If
195you have it, it is usually a good idea to enable it. 214you have the include file and libc support for it, it is usually a good
215idea to enable it, as kernel availability is detected at runtime.
196 216
197EOF 217EOF
198 218
199my $can_inotify = -e "/usr/include/sys/inotify.h"; 219my $can_inotify = have_inc "sys/inotify.h";
200 220$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
201$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); 221$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
202 222
203print <<EOF; 223print <<EOF;
204 224
205*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 225*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
206 226
207 227
208EOF 228Another useful bit of functionality is the Linux eventfd, which is useful
229for faster signal handling (don't care) and intra-thread communications
230(more relevant). Kernel support for this will be probed at runtime, but
231your libc must contain the necessary wrapper. Glibc 2.7 and later should
232have this wrapper.
209 233
234EOF
235
236my $can_eventfd = have_inc "sys/eventfd.h";
237$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
238$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
239
240print <<EOF;
241
242*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
243
244
245Another sometimes useful bit of functionality is the Linux signalfd, which
246is useful for faster signal handling (don't care). Kernel support for
247this will be probed at runtime, but your libc must contain the necessary
248wrapper. Glibc 2.7 and later should have this wrapper.
249
250EOF
251
252my $can_signalfd = have_inc "sys/signalfd.h";
253$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
254$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
255
256print <<EOF;
257
258*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
259
260
261Very rarely, people want to tweak EV even more, e.g. to exclude
262or include certain watcher types or backends. This can be done by adding
263extra -D options here, or via the EV_EXTRA_DEFS environment variable.
264
265For example, if you run into compile problems because of missing memory
266fences (or you just want extra performance), you can tell EV to not support
267smp and threads via -DEV_NO_THREADS.
268
269Normal persons just press enter.
270
271EOF
272
273$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
274
275print <<EOF;
276
277*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
278
279
280EOF
281
210my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 282my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
211 283
212WriteMakefile( 284WriteMakefile(
213 dist => { 285 dist => {
214 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 286 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
215 COMPRESS => 'gzip -9v', 287 COMPRESS => 'gzip -9v',
216 SUFFIX => '.gz', 288 SUFFIX => '.gz',
217 }, 289 },
218 depend => { 290 depend => {
219 "EV.c" => "EV/EVAPI.h " 291 "EV.c" => "EV/EVAPI.h "
220 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c " 292 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
221 . "libev/event.h libev/event.c libev/ev_vars.h libev/ev_wrap.h", 293 . "libev/ev_vars.h libev/ev_wrap.h",
222 }, 294 },
223 INC => "-Ilibev", 295 INC => "-Ilibev",
224 DEFINE => "$DEFINE", 296 DEFINE => "$DEFINE",
225 NAME => "EV", 297 NAME => "EV",
226 LIBS => [$LIBS], 298 LIBS => [$LIBS],
227 PREREQ_PM => { 299 PREREQ_PM => {
228 @anyevent, 300 @anyevent,
301 "common::sense" => 0,
229 }, 302 },
230 VERSION_FROM => "EV.pm", 303 VERSION_FROM => "EV.pm",
231 PM => { 304 PM => {
232 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 305 'EV.pm' => '$(INST_LIB)/EV.pm',
233 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 306 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
234 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 307 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
235 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 308 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
309 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
236 }, 310 },
311 MAN3PODS => {
312 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
313 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
314 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
315 },
237); 316);
238 317
239 318

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