[ViewVC] Diff of: cvs/EV/Makefile.PL

Comparing EV/Makefile.PL (file contents):
Revision 1.19 by root, Mon Nov 12 01:01:13 2007 UTC vs.
Revision 1.61 by root, Tue Jun 25 23:57:23 2019 UTC

…		…
1	use 5.006;	1	use strict qw(vars subs);
2		2	use Canary::Stability EV => 1, 5.008002;
3	use Config;	3	use Config;
4	use ExtUtils::MakeMaker;	4	use ExtUtils::MakeMaker;
5		5
		6	sub have_inc($) {
		7	scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth}
		8	}
6		9
		10	my $DEFINE;
		11
7	unless (-e "libev/ev_epoll.c") {	12	unless (-e "libev/ev_linuxaio.c") {
8	print <<EOF;	13	print <<EOF;
9		14
10	***	15	***
11	*** ERROR: libev is missing or damaged. If you used a CVS check-out of EV,	16	*** ERROR: libev is missing or damaged. If you used a CVS check-out of EV,
12	*** you also have to check-out the "libev" module from the same CVS	17	*** you also have to check-out the "libev" module from the same CVS
17	exit 1;	22	exit 1;
18	}	23	}
19		24
20	print <<EOF;	25	print <<EOF;
21		26
22
23	* * * * * * * * * * * * * * * * * *	27	* * * * * * * * * * * * * * * * * *
		28
24		29
25	Welcome to EV configuration. If you are in a hurry, just press return here	30	Welcome to EV configuration. If you are in a hurry, just press return here
26	and hope for the best. The defaults should usually do.	31	and hope for the best. The defaults should usually do.
27		32
28	EOF	33	EOF
…		…
31	$ENV{PERL_MM_USE_DEFAULT} = 1;	36	$ENV{PERL_MM_USE_DEFAULT} = 1;
32	}	37	}
33		38
34	print <<EOF;	39	print <<EOF;
35		40
36
37	* * * * * * * * * * * * * * * * * *	41	* * * * * * * * * * * * * * * * * *
		42
38		43
39	POSIX optionally offers support for a monotonic clock source. EV	44	POSIX optionally offers support for a monotonic clock source. EV
40	can take advantage of this clock source to detect time jumps	45	can take advantage of this clock source to detect time jumps more
41	reliably. Unfortunately, some systems are bound to be broken, so you can	46	reliably. Unfortunately, some systems are bound to be broken, so you can
42	disable this here: you can completely disable the detection and use of	47	disable this here: you can completely disable the detection and use of
43	the monotonic clock by answering 'n' here. Support for this clock type	48	the monotonic clock by answering 'n' here. Support for this clock type
44	will otherwise be autodetected at both compile- and runtime.	49	will otherwise be autodetected at both compile- and runtime. (this setting
		50	currently affects the use of nanosleep over select as well).
45		51
46	EOF	52	EOF
47		53
48	if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {	54	unless (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {
49	$DEFINE .= " -DEV_USE_MONOTONIC";	55	$DEFINE .= " -DEV_USE_MONOTONIC=0";
50	}	56	}
51		57
52	print <<EOF;	58	print <<EOF;
53		59
54
55	* * * * * * * * * * * * * * * * * *	60	* * * * * * * * * * * * * * * * * *
		61
56		62
57	POSIX optionally offers support for a (potentially) high-resolution	63	POSIX optionally offers support for a (potentially) high-resolution
58	realtime clock interface. In a good implementation, using it is faster	64	realtime clock interface. In a good implementation, using it is faster
59	than the normal method of using gettimeofday. Unfortunately, this option	65	than the normal method of using gettimeofday. Unfortunately, this option
60	is also bound to be broken on some systems, so you can disable use and	66	is also bound to be broken on some systems, and current EV versions do not
61	probing of this feature altogether here. Otherwise support for this clock	67	actually call gettimeofday very often, so it defaults to no.
62	type will be autodetected at compiletime.
63		68
64	EOF	69	EOF
65		70
66	if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) {	71	$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
67	$DEFINE .= " -DEV_USE_REALTIME=0";
68	}
69		72
70	print <<EOF;	73	print <<EOF;
71		74
72
73	* * * * * * * * * * * * * * * * * *	75	* * * * * * * * * * * * * * * * * *
74		76
		77
75	EV can use various backends with various portability issue. The select	78	EV can use various backends with various portability issues. The select
76	backend is the most portable and makes for a good fallback, but it can be	79	backend is the most portable and makes for a good fallback, but it can be
77	limited to a low number of file descriptors and/or might not compile. If	80	limited to a low number of file descriptors and/or might not compile. If
78	you have problems with compiling ev_select., you might try to play around	81	you have problems with compiling ev_select.c, you might try to play around
79	with disabling it here, or forcing it to use the fd_set provided by your	82	with disabling it here, or forcing it to use the fd_set provided by your
80	OS, via the next question. I highly recommend keeping it in.	83	OS, via the next question. I highly recommend keeping it in.
81		84
82	EOF	85	EOF
83		86
84	if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {	87	if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
85	$DEFINE .= " -DEV_USE_SELECT";	88	$DEFINE .= " -DEV_USE_SELECT=1";
86		89
87	print <<EOF;	90	print <<EOF;
88		91
89
90	* * * * * * * * * * * * * * * * * *	92	* * * * * * * * * * * * * * * * * *
		93
91		94
92	The select backend can operate in two modes. One uses the system-provided	95	The select backend can operate in two modes. One uses the system-provided
93	fd_set and is usually limited to 1024 file descriptors (64 on windows),	96	fd_set and is usually limited to 1024 file descriptors (64 on windows),
94	the other requires your header files to define NFDBITS and declare a	97	the other requires your header files to define NFDBITS and declare a
95	suitable fd_mask type. If you run into problems compiling ev_select.c, you	98	suitable fd_mask type. If you run into problems compiling ev_select.c, you
…		…
97		100
98	EOF	101	EOF
99		102
100	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]/) {
101	$DEFINE .= " -DEV_SELECT_USE_FD_SET";	104	$DEFINE .= " -DEV_SELECT_USE_FD_SET";
102	}	105	}
103	}	106	} else {
		107	$DEFINE .= " -DEV_USE_SELECT=0";
		108	}
104		109
105	print <<EOF;	110	print <<EOF;
106		111
107
108	* * * * * * * * * * * * * * * * * *	112	* * * * * * * * * * * * * * * * * *
		113
109		114
110	The second very portable backend is poll(2). It does not exist on windows	115	The second very portable backend is poll(2). It does not exist on windows
111	and various versions of Mac OS X (and on the other versions it simply	116	and various versions of Mac OS X (and on the other versions it simply
112	doesn't work), but works basically everywhere else. It is recommended to use	117	doesn't work), but works basically everywhere else. It is recommended to use
113	the default here unless you run into compile problems in ev_poll.c.	118	the default here unless you run into compile problems in ev_poll.c.
114		119
115	EOF	120	EOF
116		121
117	if (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]/));
118	$DEFINE .= " -DEV_USE_POLL";
119	}
120		123
121	print <<EOF;	124	print <<EOF;
122		125
123
124	* * * * * * * * * * * * * * * * * *	126	* * * * * * * * * * * * * * * * * *
125		127
126	EV by default uses select, which makes it hard to write efficient servers,	128
127	especially if the number of active conencitons is much lower than the open	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
128	ones. GNU/Linux systems have a more scalable method called "epoll", which	131	systems have a more scalable method called "epoll", which EV can use. For
129	EV can use. For this to work, both your kernel and glibc have to support	132	this to work, both your kernel and glibc have to support epoll, but if you
130	epoll, but if you can compile it, the detection will be done at runtime,	133	can compile it, the detection will be done at runtime, and EV will safely
131	and EV will safely fall back to using select when epoll isn't available.	134	fall back to using select when epoll isn't available. If unsure, accept
132	If unsure, accept the default.	135	the default.
133		136
134	EOF	137	EOF
135		138
136	if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) {	139	my $can_epoll = have_inc "sys/epoll.h";
137	$DEFINE .= " -DEV_USE_EPOLL";	140	$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
138	}	141	$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
139		142
140	print <<EOF;	143	print <<EOF;
141		144
142
143	* * * * * * * * * * * * * * * * * *	145	* * * * * * * * * * * * * * * * * *
144		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	$can_linuxaio = 0 + (prompt ("Enable linux aio backend (y/n)?", $can_linuxaio ? "y" : "n") =~ /[yY]/);
		163	$DEFINE .= " -DEV_USE_LINUXAIO=$can_linuxaio";
		164
		165	if ($can_linuxaio) {
		166	print <<EOF;
		167
		168	* * * * * * * * * * * * * * * * * *
		169
		170
		171	The previously mentioned Linux AIO backend is experimental and will not
		172	be used unless requested explicitly. You can, howeer, choose to make ti a
		173	recommended basckend, which means it will be chosen if available even when
		174	not explicitly asked for, in preference to epoll on GNU/Linux. This option
		175	is likely temporary. When unsure, accept the default.
		176
		177	EOF
		178
		179	my $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	}
		184
		185	print <<EOF;
		186
		187	* * * * * * * * * * * * * * * * * *
		188
		189
145	Similarly to the epoll backend above, EV can take advantage of kqueue	190	Similarly to the epoll backend above, EV can take advantage of kqueue on
146	on many BSD systems (it seems to be broken on Mac OS X though, but what	191	many BSD systems. Support for kqueue will be detected at runtime, with a
147	isn't broken on that shoddy platform... ah yes, the cash gushing by apple,	192	safe fallback to other methods when it cannot be used.
148	selling defective software works perfectly there). Support for kqueue will	193
		194	Note that kqueue is broken on most operating systems, so by default it
		195	won't be used on many platforms, but you can still create your own event
		196	loop with kqueue backend if you ask specifically for it.
		197
		198	Here is what we know:
		199
		200	NetBSD: partially working in at least 3.1 and later. Yeah! :)
		201	FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
		202	sockets likely work, ptys definitely don't.
		203	OpenBSD: reports indicate that it likely doesn't work
		204	(similar problems as on FreeBSD).
		205	OS X: completely, utterly broken on at least <= 10.6.
		206
		207	EOF
		208
		209	my $can_kqueue = have_inc "sys/event.h";
		210	$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
		211	$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
		212
		213	print <<EOF;
		214
		215	* * * * * * * * * * * * * * * * * *
		216
		217
		218	Similarly to the kqueue backend above, EV can take advantage of the
		219	solaris 10 event port interface. Support for event ports will be detected
149	be detected at runtime, with a safe fallback to other methods when it	220	at runtime, with a safe fallback to other methods when it cannot be used.
150	cannot be used.
151		221
152	EOF	222	EOF
153		223
154	if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.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]/));
155	$DEFINE .= " -DEV_USE_KQUEUE";
156	}
157		225
158	print <<EOF;	226	print <<EOF;
159		227
160
161	* * * * * * * * * * * * * * * * * *	228	* * * * * * * * * * * * * * * * * *
		229
162		230
163	EV needs the functions pthread_atfork and clock_gettime. On most systems	231	EV needs the functions pthread_atfork and clock_gettime. On most systems
164	you need some special libraries for this (such as -lrt and -lpthread). You	232	you need some special libraries for this (such as -lrt and -lpthread). You
165	can specify additional libraries to provide these calls now, or accept the	233	can specify additional libraries to provide these calls (and any other
166	default.	234	required by EV) now, or accept the default.
167		235
168	EOF	236	On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
		237	to avoid the dependency on libpthread, and directly uses the clock_gettime
		238	syscall to avoid a dependency on librt.
169		239
		240	EOF
		241
		242	my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
		243	my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
		244	my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
170	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt";	245	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
171		246
172		247
173	print <<EOF;	248	print <<EOF;
174		249
175
176	* * * * * * * * * * * * * * * * * *	250	* * * * * * * * * * * * * * * * * *
177		251
		252
		253	A backend of a different kind is the Linux inotify(7) interface, which can
		254	be used to speed up (and reduce resource consumption) of stat watchers. If
		255	you have the include file and libc support for it, it is usually a good
		256	idea to enable it, as kernel availability is detected at runtime.
		257
178	EOF	258	EOF
		259
		260	my $can_inotify = have_inc "sys/inotify.h";
		261	$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
		262	$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
		263
		264	print <<EOF;
		265
		266	* * * * * * * * * * * * * * * * * *
		267
		268
		269	Another useful bit of functionality is the Linux eventfd, which is useful
		270	for faster signal handling (don't care) and intra-thread communications
		271	(more relevant). Kernel support for this will be probed at runtime, but
		272	your libc must contain the necessary wrapper. Glibc 2.7 and later should
		273	have this wrapper.
		274
		275	EOF
		276
		277	my $can_eventfd = have_inc "sys/eventfd.h";
		278	$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
		279	$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
		280
		281	print <<EOF;
		282
		283	* * * * * * * * * * * * * * * * * *
		284
		285
		286	Another sometimes useful bit of functionality is the Linux signalfd, which
		287	is useful for faster signal handling (don't care). Kernel support for
		288	this will be probed at runtime, but your libc must contain the necessary
		289	wrapper. Glibc 2.7 and later should have this wrapper.
		290
		291	EOF
		292
		293	my $can_signalfd = have_inc "sys/signalfd.h";
		294	$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
		295	$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
		296
		297	print <<EOF;
		298
		299	* * * * * * * * * * * * * * * * * *
		300
		301
		302	Libev contains numerous internal assert() invocations to check for
		303	consistency and user errors. These are normally enabled, but most
		304	perl builds disable this error reporting mechanism by default. You
		305	can re-enable these asserts here. Enabling them might help you catch
		306	programming bugs earlier, but might cause a small slowdown. Also, failures
		307	will be reported by aboritng your program, instead of throwing a perl
		308	exception.
		309
		310	If unsure, enable this if you only use this perl installation for
		311	development, and leave it off for use in production environments.
		312
		313	EOF
		314
		315	my $enable_assertions = 0;
		316	$enable_assertions = 0 + (prompt ("Make sure assertions are enabled? (y/n)?", $enable_assertions ? "y" : "n") =~ /[yY]/);
		317	$DEFINE .= " -DEV_ENABLE_ASERTIONS=1" if $enable_assertions;
		318
		319	print <<EOF;
		320
		321	* * * * * * * * * * * * * * * * * *
		322
		323
		324	Very rarely, people want to tweak EV even more, e.g. to exclude
		325	or include certain watcher types or backends. This can be done by adding
		326	extra -D options here, or via the EV_EXTRA_DEFS environment variable.
		327
		328	For example, if you run into compile problems because of missing memory
		329	fences (or you just want extra performance), you can tell EV to not support
		330	smp and threads via -DEV_NO_THREADS.
		331
		332	Normal persons just press enter.
		333
		334	EOF
		335
		336	$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
		337
		338	print <<EOF;
		339
		340	* * * * * * * * * * * * * * * * * *
		341
		342
		343	EOF
		344
		345	my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
179		346
180	WriteMakefile(	347	WriteMakefile(
181	dist => {	348	dist => {
182	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',	349	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
183	COMPRESS => 'gzip -9v',	350	COMPRESS => 'gzip -9v',
184	SUFFIX => '.gz',	351	SUFFIX => '.gz',
185	},	352	},
186	depend => {	353	depend => {
187	"EV.c" => "EV/EVAPI.h "	354	"EV.c" => "EV/EVAPI.h "
188	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "	355	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
189	. "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h",	356	. "libev/ev_vars.h libev/ev_wrap.h",
190	},	357	},
191	INC => "-Ilibev",	358	INC => "-Ilibev",
192	DEFINE => "$DEFINE",	359	DEFINE => "$DEFINE",
193	NAME => "EV",	360	NAME => "EV",
194	LIBS => [$LIBS],	361	LIBS => [$LIBS],
		362	PREREQ_PM => {
		363	@anyevent,
		364	"common::sense" => 0,
		365	},
		366	CONFIGURE_REQUIRES => { "ExtUtils::MakeMaker" => 6.52, "Canary::Stability" => 0 },
195	VERSION_FROM => "EV.pm",	367	VERSION_FROM => "EV.pm",
196	PM => {	368	PM => {
197	'EV.pm' => '$(INST_LIBDIR)/EV.pm',	369	'EV.pm' => '$(INST_LIB)/EV.pm',
198	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
199	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',	370	'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
200	'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',	371	'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
201	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',	372	'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
		373	'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
202	},	374	},
		375	MAN3PODS => {
		376	'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
		377	'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
		378	'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
		379	},
203	);	380	);
204		381
205		382

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Comparing EV/Makefile.PL (file contents): Revision 1.19 by root, Mon Nov 12 01:01:13 2007 UTC vs. Revision 1.61 by root, Tue Jun 25 23:57:23 2019 UTC

Diff Legend

Comparing EV/Makefile.PL (file contents):
Revision 1.19 by root, Mon Nov 12 01:01:13 2007 UTC vs.
Revision 1.61 by root, Tue Jun 25 23:57:23 2019 UTC