| 1 | use 5.006; |
1 | use strict qw(vars subs); |
| 2 | |
2 | use Canary::Stability EV => 1, 5.008002; |
|
|
3 | use Config; |
| 3 | use ExtUtils::MakeMaker; |
4 | use ExtUtils::MakeMaker; |
|
|
5 | |
|
|
6 | sub have_inc($) { |
|
|
7 | scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth} |
|
|
8 | } |
|
|
9 | |
|
|
10 | my $DEFINE; |
|
|
11 | |
|
|
12 | unless (-e "libev/ev_epoll.c") { |
|
|
13 | print <<EOF; |
|
|
14 | |
|
|
15 | *** |
|
|
16 | *** ERROR: libev is missing or damaged. If you used a CVS check-out of EV, |
|
|
17 | *** you also have to check-out the "libev" module from the same CVS |
|
|
18 | *** repository into the EV dir (i.e. EV/libev from outside). |
|
|
19 | *** |
|
|
20 | |
|
|
21 | EOF |
|
|
22 | exit 1; |
|
|
23 | } |
|
|
24 | |
|
|
25 | print <<EOF; |
|
|
26 | |
|
|
27 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
28 | |
|
|
29 | |
|
|
30 | Welcome to EV configuration. If you are in a hurry, just press return here |
|
|
31 | and hope for the best. The defaults should usually do. |
|
|
32 | |
|
|
33 | EOF |
|
|
34 | |
|
|
35 | if (prompt ("Skip further questions and use defaults (y/n)?", "y") =~ /[yY]/) { |
|
|
36 | $ENV{PERL_MM_USE_DEFAULT} = 1; |
|
|
37 | } |
|
|
38 | |
|
|
39 | print <<EOF; |
|
|
40 | |
|
|
41 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
42 | |
|
|
43 | |
|
|
44 | POSIX optionally offers support for a monotonic clock source. EV |
|
|
45 | can take advantage of this clock source to detect time jumps more |
|
|
46 | reliably. Unfortunately, some systems are bound to be broken, so you can |
|
|
47 | disable this here: you can completely disable the detection and use of |
|
|
48 | the monotonic clock by answering 'n' here. Support for this clock type |
|
|
49 | will otherwise be autodetected at both compile- and runtime. (this setting |
|
|
50 | currently affects the use of nanosleep over select as well). |
|
|
51 | |
|
|
52 | EOF |
|
|
53 | |
|
|
54 | unless (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) { |
|
|
55 | $DEFINE .= " -DEV_USE_MONOTONIC=0"; |
|
|
56 | } |
|
|
57 | |
|
|
58 | print <<EOF; |
|
|
59 | |
|
|
60 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
61 | |
|
|
62 | |
|
|
63 | POSIX optionally offers support for a (potentially) high-resolution |
|
|
64 | realtime clock interface. In a good implementation, using it is faster |
|
|
65 | than the normal method of using gettimeofday. Unfortunately, this option |
|
|
66 | is also bound to be broken on some systems, and current EV versions do not |
|
|
67 | actually call gettimeofday very often, so it defaults to no. |
|
|
68 | |
|
|
69 | EOF |
|
|
70 | |
|
|
71 | $DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/)); |
|
|
72 | |
|
|
73 | print <<EOF; |
|
|
74 | |
|
|
75 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
76 | |
|
|
77 | |
|
|
78 | EV can use various backends with various portability issues. The select |
|
|
79 | backend is the most portable and makes for a good fallback, but it can be |
|
|
80 | limited to a low number of file descriptors and/or might not compile. If |
|
|
81 | you have problems with compiling ev_select.c, you might try to play around |
|
|
82 | with disabling it here, or forcing it to use the fd_set provided by your |
|
|
83 | OS, via the next question. I highly recommend keeping it in. |
|
|
84 | |
|
|
85 | EOF |
|
|
86 | |
|
|
87 | if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) { |
|
|
88 | $DEFINE .= " -DEV_USE_SELECT=1"; |
|
|
89 | |
|
|
90 | print <<EOF; |
|
|
91 | |
|
|
92 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
93 | |
|
|
94 | |
|
|
95 | The select backend can operate in two modes. One uses the system-provided |
|
|
96 | fd_set and is usually limited to 1024 file descriptors (64 on windows), |
|
|
97 | the other requires your header files to define NFDBITS and declare a |
|
|
98 | suitable fd_mask type. If you run into problems compiling ev_select.c, you |
|
|
99 | can try forcing the use of the system fd_set here. |
|
|
100 | |
|
|
101 | EOF |
|
|
102 | |
|
|
103 | if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) { |
|
|
104 | $DEFINE .= " -DEV_SELECT_USE_FD_SET"; |
|
|
105 | } |
|
|
106 | } else { |
|
|
107 | $DEFINE .= " -DEV_USE_SELECT=0"; |
|
|
108 | } |
|
|
109 | |
|
|
110 | print <<EOF; |
|
|
111 | |
|
|
112 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
113 | |
|
|
114 | |
|
|
115 | The second very portable backend is poll(2). It does not exist on windows |
|
|
116 | and various versions of Mac OS X (and on the other versions it simply |
|
|
117 | doesn't work), but works basically everywhere else. It is recommended to use |
|
|
118 | the default here unless you run into compile problems in ev_poll.c. |
|
|
119 | |
|
|
120 | EOF |
|
|
121 | |
|
|
122 | $DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/)); |
|
|
123 | |
|
|
124 | print <<EOF; |
|
|
125 | |
|
|
126 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
127 | |
|
|
128 | |
|
|
129 | Select and poll make it hard to write efficient servers, especially if the |
|
|
130 | number of active connections is much lower than the watched ones. GNU/Linux |
|
|
131 | systems have a more scalable method called "epoll", which EV can use. For |
|
|
132 | this to work, both your kernel and glibc have to support epoll, but if you |
|
|
133 | can compile it, the detection will be done at runtime, and EV will safely |
|
|
134 | fall back to using select when epoll isn't available. If unsure, accept |
|
|
135 | the default. |
|
|
136 | |
|
|
137 | EOF |
|
|
138 | |
|
|
139 | my $can_epoll = have_inc "sys/epoll.h"; |
|
|
140 | $can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL}; |
|
|
141 | $DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/)); |
|
|
142 | |
|
|
143 | print <<EOF; |
|
|
144 | |
|
|
145 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
146 | |
|
|
147 | |
|
|
148 | Linux 4.18 introduced another event polling interface, this time using |
|
|
149 | the Linux AIO API. While this API is far superior to epoll and almost |
|
|
150 | rivals kqueue, it also suffers from the same issues as kqueue typically |
|
|
151 | does: only a subset of file types are supported (as of 4.19, I have seen |
|
|
152 | eventfd, pipes, sockets files and some devices, but no ttys). It also |
|
|
153 | is subject arbitrary system-wide limits imposed on it. Therefore, this |
|
|
154 | backend is not used by default, even when it is compiled in, and you have |
|
|
155 | to request it explicitly, e.g. with LIBEV_FLAGS=64. If unsure, accept the |
|
|
156 | default. |
|
|
157 | |
|
|
158 | EOF |
|
|
159 | |
|
|
160 | my $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]/)); |
|
|
163 | |
|
|
164 | print <<EOF; |
|
|
165 | |
|
|
166 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
167 | |
|
|
168 | |
|
|
169 | Similarly to the epoll backend above, EV can take advantage of kqueue on |
|
|
170 | many BSD systems. Support for kqueue will be detected at runtime, with a |
|
|
171 | safe fallback to other methods when it cannot be used. |
|
|
172 | |
|
|
173 | Note that kqueue is broken on most operating systems, so by default it |
|
|
174 | won't be used on many platforms, but you can still create your own event |
|
|
175 | loop with kqueue backend if you ask specifically for it. |
|
|
176 | |
|
|
177 | Here is what we know: |
|
|
178 | |
|
|
179 | NetBSD: partially working in at least 3.1 and later. Yeah! :) |
|
|
180 | FreeBSD: broken on at least 6.2-STABLE, spotty in later versions, |
|
|
181 | sockets *likely* work, ptys definitely don't. |
|
|
182 | OpenBSD: reports indicate that it likely doesn't work |
|
|
183 | (similar problems as on FreeBSD). |
|
|
184 | OS X: completely, utterly broken on at least <= 10.6. |
|
|
185 | |
|
|
186 | EOF |
|
|
187 | |
|
|
188 | my $can_kqueue = have_inc "sys/event.h"; |
|
|
189 | $can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE}; |
|
|
190 | $DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); |
|
|
191 | |
|
|
192 | print <<EOF; |
|
|
193 | |
|
|
194 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
195 | |
|
|
196 | |
|
|
197 | Similarly to the kqueue backend above, EV can take advantage of the |
|
|
198 | solaris 10 event port interface. Support for event ports will be detected |
|
|
199 | at runtime, with a safe fallback to other methods when it cannot be used. |
|
|
200 | |
|
|
201 | EOF |
|
|
202 | |
|
|
203 | $DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/)); |
|
|
204 | |
|
|
205 | print <<EOF; |
|
|
206 | |
|
|
207 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
208 | |
|
|
209 | |
|
|
210 | EV needs the functions pthread_atfork and clock_gettime. On most systems |
|
|
211 | you need some special libraries for this (such as -lrt and -lpthread). You |
|
|
212 | can specify additional libraries to provide these calls (and any other |
|
|
213 | required by EV) now, or accept the default. |
|
|
214 | |
|
|
215 | On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function |
|
|
216 | to avoid the dependency on libpthread, and directly uses the clock_gettime |
|
|
217 | syscall to avoid a dependency on librt. |
|
|
218 | |
|
|
219 | EOF |
|
|
220 | |
|
|
221 | my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : ""; |
|
|
222 | my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt"; |
|
|
223 | my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs"; |
|
|
224 | $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS; |
|
|
225 | |
|
|
226 | |
|
|
227 | print <<EOF; |
|
|
228 | |
|
|
229 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
230 | |
|
|
231 | |
|
|
232 | A backend of a different kind is the Linux inotify(7) interface, which can |
|
|
233 | be used to speed up (and reduce resource consumption) of stat watchers. If |
|
|
234 | you have the include file and libc support for it, it is usually a good |
|
|
235 | idea to enable it, as kernel availability is detected at runtime. |
|
|
236 | |
|
|
237 | EOF |
|
|
238 | |
|
|
239 | my $can_inotify = have_inc "sys/inotify.h"; |
|
|
240 | $can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY}; |
|
|
241 | $DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); |
|
|
242 | |
|
|
243 | print <<EOF; |
|
|
244 | |
|
|
245 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
246 | |
|
|
247 | |
|
|
248 | Another useful bit of functionality is the Linux eventfd, which is useful |
|
|
249 | for faster signal handling (don't care) and intra-thread communications |
|
|
250 | (more relevant). Kernel support for this will be probed at runtime, but |
|
|
251 | your libc must contain the necessary wrapper. Glibc 2.7 and later should |
|
|
252 | have this wrapper. |
|
|
253 | |
|
|
254 | EOF |
|
|
255 | |
|
|
256 | my $can_eventfd = have_inc "sys/eventfd.h"; |
|
|
257 | $can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD}; |
|
|
258 | $DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/)); |
|
|
259 | |
|
|
260 | print <<EOF; |
|
|
261 | |
|
|
262 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
263 | |
|
|
264 | |
|
|
265 | Another sometimes useful bit of functionality is the Linux signalfd, which |
|
|
266 | is useful for faster signal handling (don't care). Kernel support for |
|
|
267 | this will be probed at runtime, but your libc must contain the necessary |
|
|
268 | wrapper. Glibc 2.7 and later should have this wrapper. |
|
|
269 | |
|
|
270 | EOF |
|
|
271 | |
|
|
272 | my $can_signalfd = have_inc "sys/signalfd.h"; |
|
|
273 | $can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD}; |
|
|
274 | $DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/)); |
|
|
275 | |
|
|
276 | print <<EOF; |
|
|
277 | |
|
|
278 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
279 | |
|
|
280 | |
|
|
281 | Very rarely, people want to tweak EV even more, e.g. to exclude |
|
|
282 | or include certain watcher types or backends. This can be done by adding |
|
|
283 | extra -D options here, or via the EV_EXTRA_DEFS environment variable. |
|
|
284 | |
|
|
285 | For example, if you run into compile problems because of missing memory |
|
|
286 | fences (or you just want extra performance), you can tell EV to not support |
|
|
287 | smp and threads via -DEV_NO_THREADS. |
|
|
288 | |
|
|
289 | Normal persons just press enter. |
|
|
290 | |
|
|
291 | EOF |
|
|
292 | |
|
|
293 | $DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}"; |
|
|
294 | |
|
|
295 | print <<EOF; |
|
|
296 | |
|
|
297 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
|
|
298 | |
|
|
299 | |
|
|
300 | EOF |
|
|
301 | |
|
|
302 | my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : (); |
| 4 | |
303 | |
| 5 | WriteMakefile( |
304 | WriteMakefile( |
| 6 | dist => { |
305 | dist => { |
| 7 | PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', |
306 | PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', |
| 8 | COMPRESS => 'gzip -9v', |
307 | COMPRESS => 'gzip -9v', |
| 9 | SUFFIX => '.gz', |
308 | SUFFIX => '.gz', |
| 10 | }, |
309 | }, |
| 11 | MYEXTLIB => 'libevent/.libs/libevent$(LIB_EXT)', |
310 | depend => { |
|
|
311 | "EV.c" => "EV/EVAPI.h " |
|
|
312 | . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c " |
|
|
313 | . "libev/ev_vars.h libev/ev_wrap.h", |
|
|
314 | }, |
|
|
315 | INC => "-Ilibev", |
|
|
316 | DEFINE => "$DEFINE", |
| 12 | NAME => "EV", |
317 | NAME => "EV", |
|
|
318 | LIBS => [$LIBS], |
|
|
319 | PREREQ_PM => { |
|
|
320 | @anyevent, |
|
|
321 | "common::sense" => 0, |
|
|
322 | }, |
|
|
323 | CONFIGURE_REQUIRES => { "ExtUtils::MakeMaker" => 6.52, "Canary::Stability" => 0 }, |
| 13 | VERSION_FROM => "EV.pm", |
324 | VERSION_FROM => "EV.pm", |
| 14 | PM => { |
325 | PM => { |
| 15 | 'EV.pm' => '$(INST_LIBDIR)/EV.pm', |
326 | 'EV.pm' => '$(INST_LIB)/EV.pm', |
| 16 | 'EV/AnyEvent.pm' => '$(INST_LIBDIR)/EV/AnyEvent.pm', |
|
|
| 17 | 'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm', |
|
|
| 18 | 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', |
327 | 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h', |
| 19 | 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', |
328 | 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm', |
| 20 | 'libevent/event.h' => '$(INST_LIBDIR)/EV/event.h', |
329 | 'libev/ev.h' => '$(INST_LIB)/EV/ev.h', |
| 21 | 'libevent/evdns.h' => '$(INST_LIBDIR)/EV/evdns.h', |
330 | 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod', |
| 22 | 'libevent/evhttp.h' => '$(INST_LIBDIR)/EV/evhttp.h', |
|
|
| 23 | }, |
331 | }, |
|
|
332 | MAN3PODS => { |
|
|
333 | 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)', |
|
|
334 | 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)', |
|
|
335 | 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)', |
|
|
336 | }, |
| 24 | ); |
337 | ); |
| 25 | |
338 | |
| 26 | sub MY::postamble { |
|
|
| 27 | my $postamble =<<'END'; |
|
|
| 28 | |
339 | |
| 29 | libevent/Makefile: libevent/configure |
|
|
| 30 | cd libevent && CC="$(CC)" CFLAGS="$(OPTIMIZE) $(CFLAGS) $(CCCDLFLAGS)" ./configure --disable-shared --enable-static --disable-maintainer-mode |
|
|
| 31 | |
|
|
| 32 | clean:: |
|
|
| 33 | -cd libevent && make distclean |
|
|
| 34 | |
|
|
| 35 | force: |
|
|
| 36 | |
|
|
| 37 | $(MYEXTLIB): libevent/Makefile force |
|
|
| 38 | cd libevent && $(MAKE) all |
|
|
| 39 | |
|
|
| 40 | END |
|
|
| 41 | } |
|
|
| 42 | |
|
|
