[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 1.59 by root, Sat Jun 22 16:43:05 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	}
		9
		10	my $DEFINE;
6		11
7	unless (-e "libev/ev_epoll.c") {	12	unless (-e "libev/ev_epoll.c") {
8	print <<EOF;	13	print <<EOF;
9		14
10	***	15	***
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	$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
145	Similarly to the epoll backend above, EV can take advantage of kqueue	169	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	170	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,	171	safe fallback to other methods when it cannot be used.
148	selling defective software works perfectly there). Support for kqueue will	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
149	be detected at runtime, with a safe fallback to other methods when it	199	at runtime, with a safe fallback to other methods when it cannot be used.
150	cannot be used.
151		200
152	EOF	201	EOF
153		202
154	if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) {	203	$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		204
158	print <<EOF;	205	print <<EOF;
159		206
160
161	* * * * * * * * * * * * * * * * * *	207	* * * * * * * * * * * * * * * * * *
		208
162		209
163	EV needs the functions pthread_atfork and clock_gettime. On most systems	210	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	211	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	212	can specify additional libraries to provide these calls (and any other
166	default.	213	required by EV) now, or accept the default.
167		214
168	EOF	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.
169		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";
170	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt";	224	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
171		225
172		226
173	print <<EOF;	227	print <<EOF;
174		228
175
176	* * * * * * * * * * * * * * * * * *	229	* * * * * * * * * * * * * * * * * *
177		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
178	EOF	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; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
179		303
180	WriteMakefile(	304	WriteMakefile(
181	dist => {	305	dist => {
182	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',	306	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
183	COMPRESS => 'gzip -9v',	307	COMPRESS => 'gzip -9v',
184	SUFFIX => '.gz',	308	SUFFIX => '.gz',
185	},	309	},
186	depend => {	310	depend => {
187	"EV.c" => "EV/EVAPI.h "	311	"EV.c" => "EV/EVAPI.h "
188	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "	312	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
189	. "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h",	313	. "libev/ev_vars.h libev/ev_wrap.h",
190	},	314	},
191	INC => "-Ilibev",	315	INC => "-Ilibev",
192	DEFINE => "$DEFINE",	316	DEFINE => "$DEFINE",
193	NAME => "EV",	317	NAME => "EV",
194	LIBS => [$LIBS],	318	LIBS => [$LIBS],
		319	PREREQ_PM => {
		320	@anyevent,
		321	"common::sense" => 0,
		322	},
		323	CONFIGURE_REQUIRES => { "ExtUtils::MakeMaker" => 6.52, "Canary::Stability" => 0 },
195	VERSION_FROM => "EV.pm",	324	VERSION_FROM => "EV.pm",
196	PM => {	325	PM => {
197	'EV.pm' => '$(INST_LIBDIR)/EV.pm',	326	'EV.pm' => '$(INST_LIB)/EV.pm',
198	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
199	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',	327	'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
200	'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',	328	'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
201	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',	329	'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
		330	'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
202	},	331	},
		332	MAN3PODS => {
		333	'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
		334	'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
		335	'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
		336	},
203	);	337	);
204		338
205		339

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing EV/Makefile.PL (file contents): Revision 1.19 by root, Mon Nov 12 01:01:13 2007 UTC vs. Revision 1.59 by root, Sat Jun 22 16:43:05 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 1.59 by root, Sat Jun 22 16:43:05 2019 UTC