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

Comparing EV/Makefile.PL (file contents):
Revision 1.17 by root, Thu Nov 8 00:44:17 2007 UTC vs.
Revision 1.53 by root, Tue Jan 15 21:49:38 2013 UTC

…		…
1	use 5.006;	1	use 5.008002;
2		2
		3	use strict qw(vars subs);
3	use Config;	4	use Config;
4	use ExtUtils::MakeMaker;	5	use ExtUtils::MakeMaker;
5
6		6
7	unless (-e "libev/ev_epoll.c") {	7	unless (-e "libev/ev_epoll.c") {
8	print <<EOF;	8	print <<EOF;
9		9
10	***	10	***
17	exit 1;	17	exit 1;
18	}	18	}
19		19
20	print <<EOF;	20	print <<EOF;
21		21
22
23	* * * * * * * * * * * * * * * * * *	22	* * * * * * * * * * * * * * * * * *
		23
24		24
25	Welcome to EV configuration. If you are in a hurry, just press return here	25	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.	26	and hope for the best. The defaults should usually do.
27		27
28	EOF	28	EOF
…		…
31	$ENV{PERL_MM_USE_DEFAULT} = 1;	31	$ENV{PERL_MM_USE_DEFAULT} = 1;
32	}	32	}
33		33
34	print <<EOF;	34	print <<EOF;
35		35
36
37	* * * * * * * * * * * * * * * * * *	36	* * * * * * * * * * * * * * * * * *
		37
38		38
39	POSIX optionally offers support for a monotonic clock source. EV	39	POSIX optionally offers support for a monotonic clock source. EV
40	can take advantage of this clock source to detect time jumps	40	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	41	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	42	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	43	the monotonic clock by answering 'n' here. Support for this clock type
44	will otherwise be autodetected at both compile- and runtime.	44	will otherwise be autodetected at both compile- and runtime. (this setting
		45	currently affects the use of nanosleep over select as well).
45		46
46	EOF	47	EOF
47		48
48	if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {	49	my $DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
49	$DEFINE .= " -DEV_USE_MONOTONIC";
50	}
51		50
52	print <<EOF;	51	print <<EOF;
53		52
54
55	* * * * * * * * * * * * * * * * * *	53	* * * * * * * * * * * * * * * * * *
		54
56		55
57	POSIX optionally offers support for a (potentially) high-resolution	56	POSIX optionally offers support for a (potentially) high-resolution
58	realtime clock interface. In a good implementation, using it is faster	57	realtime clock interface. In a good implementation, using it is faster
59	than the normal method of using gettimeofday. Unfortunately, this option	58	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	59	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	60	actually call gettimeofday very often, so it defaults to no.
62	type will be autodetected at compiletime.
63		61
64	EOF	62	EOF
65		63
66	if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) {	64	$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
		65
		66	print <<EOF;
		67
		68	* * * * * * * * * * * * * * * * * *
		69
		70
		71	EV can use various backends with various portability issues. The select
		72	backend is the most portable and makes for a good fallback, but it can be
		73	limited to a low number of file descriptors and/or might not compile. If
		74	you have problems with compiling ev_select.c, you might try to play around
		75	with disabling it here, or forcing it to use the fd_set provided by your
		76	OS, via the next question. I highly recommend keeping it in.
		77
		78	EOF
		79
		80	if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
67	$DEFINE .= " -DEV_USE_REALTIME=0";	81	$DEFINE .= " -DEV_USE_SELECT=1";
68	}
69		82
70	print <<EOF;	83	print <<EOF;
71		84
72
73	* * * * * * * * * * * * * * * * * *	85	* * * * * * * * * * * * * * * * * *
74		86
75	EV by default uses select, which makes it hard to write efficient servers,
76	especially if the number of active conencitons is much lower than the open
77	ones. GNU/Linux systems have a more scalable method called "epoll", which
78	EV can use. For this to work, both your kernel and glibc have to support
79	epoll, but if you can compile it, the detection will be done at runtime,
80	and EV will safely fall back to using select when epoll isn't available.
81	If unsure, accept the default.
82		87
83	EOF	88	The select backend can operate in two modes. One uses the system-provided
		89	fd_set and is usually limited to 1024 file descriptors (64 on windows),
		90	the other requires your header files to define NFDBITS and declare a
		91	suitable fd_mask type. If you run into problems compiling ev_select.c, you
		92	can try forcing the use of the system fd_set here.
84		93
85	if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) {	94	EOF
		95
		96	if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
		97	$DEFINE .= " -DEV_SELECT_USE_FD_SET";
		98	}
		99	} else {
86	$DEFINE .= " -DEV_USE_EPOLL";	100	$DEFINE .= " -DEV_USE_SELECT=0";
87	}	101	}
88		102
89	print <<EOF;	103	print <<EOF;
90		104
91
92	* * * * * * * * * * * * * * * * * *	105	* * * * * * * * * * * * * * * * * *
		106
		107
		108	The second very portable backend is poll(2). It does not exist on windows
		109	and various versions of Mac OS X (and on the other versions it simply
		110	doesn't work), but works basically everywhere else. It is recommended to use
		111	the default here unless you run into compile problems in ev_poll.c.
		112
		113	EOF
		114
		115	$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/));
		116
		117	print <<EOF;
		118
		119	* * * * * * * * * * * * * * * * * *
		120
		121
		122	Select and poll make it hard to write efficient servers, especially if the
		123	number of active connections is much lower than the watched ones. GNU/Linux
		124	systems have a more scalable method called "epoll", which EV can use. For
		125	this to work, both your kernel and glibc have to support epoll, but if you
		126	can compile it, the detection will be done at runtime, and EV will safely
		127	fall back to using select when epoll isn't available. If unsure, accept
		128	the default.
		129
		130	EOF
		131
		132	my $can_epoll = -e "/usr/include/sys/epoll.h";
		133	$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]/));
		135
		136	print <<EOF;
		137
		138	* * * * * * * * * * * * * * * * * *
		139
93		140
94	Similarly to the epoll backend above, EV can take advantage of kqueue on	141	Similarly to the epoll backend above, EV can take advantage of kqueue on
95	many BSD systems (it seems to be broken on Mac OS X though). The kqueue
96	backend has not been tested, however, so it is disabled by default. Please
97	test (and preferably fix) the kqueue backend when you have a machine
98	supporting it. Support for kqueue will be detected at runtime, with a	142	many BSD systems. Support for kqueue will be detected at runtime, with a
99	safe fallback to other methods when it cannot be used.	143	safe fallback to other methods when it cannot be used.
100		144
101	EOF	145	Note that kqueue is broken on most operating systems, so by default it
		146	won't be used on many platforms, but you can still create your own event
		147	loop with kqueue backend if you ask specifically for it.
102		148
103	if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) {	149	Here is what we know:
104	$DEFINE .= " -DEV_USE_KQUEUE";
105	}
106		150
107	print <<EOF;	151	NetBSD: partially working in at least 3.1 and later. Yeah! :)
		152	FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
		153	sockets likely work, ptys definitely don't.
		154	OpenBSD: reports indicate that it likely doesn't work
		155	(similar problems as on FreeBSD).
		156	OS X: completely, utterly broken on at least <= 10.6.
108		157
		158	EOF
109		159
		160	my $can_kqueue = -e "/usr/include/sys/event.h";
		161	$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]/));
		163
		164	print <<EOF;
		165
110	* * * * * * * * * * * * * * * * * *	166	* * * * * * * * * * * * * * * * * *
		167
		168
		169	Similarly to the kqueue backend above, EV can take advantage of the
		170	solaris 10 event port interface. Support for event ports will be detected
		171	at runtime, with a safe fallback to other methods when it cannot be used.
		172
		173	EOF
		174
		175	$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/));
		176
		177	print <<EOF;
		178
		179	* * * * * * * * * * * * * * * * * *
		180
111		181
112	EV needs the functions pthread_atfork and clock_gettime. On most systems	182	EV needs the functions pthread_atfork and clock_gettime. On most systems
113	you need some special libraries for this (such as -lrt and -lpthread). You	183	you need some special libraries for this (such as -lrt and -lpthread). You
114	can specify additional libraries to provide these calls now, or accept the	184	can specify additional libraries to provide these calls (and any other
115	default.	185	required by EV) now, or accept the default.
116		186
117	EOF	187	On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
		188	to avoid the dependency on libpthread, and directly uses the clock_gettime
		189	syscall to avoid a dependency on librt.
118		190
		191	EOF
		192
		193	my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
		194	my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
		195	my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
119	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt";	196	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
120		197
121		198
122	print <<EOF;	199	print <<EOF;
123		200
124
125	* * * * * * * * * * * * * * * * * *	201	* * * * * * * * * * * * * * * * * *
126		202
		203
		204	A backend of a different kind is the Linux inotify(7) interface, which can
		205	be used to speed up (and reduce resource consumption) of stat watchers. If
		206	you have the include file and libc support for it, it is usually a good
		207	idea to enable it, as kernel availability is detected at runtime.
		208
127	EOF	209	EOF
		210
		211	my $can_inotify = -e "/usr/include/sys/inotify.h";
		212	$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
		213	$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
		214
		215	print <<EOF;
		216
		217	* * * * * * * * * * * * * * * * * *
		218
		219
		220	Another useful bit of functionality is the Linux eventfd, which is useful
		221	for faster signal handling (don't care) and intra-thread communications
		222	(more relevant). Kernel support for this will be probed at runtime, but
		223	your libc must contain the necessary wrapper. Glibc 2.7 and later should
		224	have this wrapper.
		225
		226	EOF
		227
		228	my $can_eventfd = -e "/usr/include/sys/eventfd.h";
		229	$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
		230	$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
		231
		232	print <<EOF;
		233
		234	* * * * * * * * * * * * * * * * * *
		235
		236
		237	Another sometimes useful bit of functionality is the Linux signalfd, which
		238	is useful for faster signal handling (don't care). Kernel support for
		239	this will be probed at runtime, but your libc must contain the necessary
		240	wrapper. Glibc 2.7 and later should have this wrapper.
		241
		242	EOF
		243
		244	my $can_signalfd = -e "/usr/include/sys/signalfd.h";
		245	$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
		246	$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
		247
		248	print <<EOF;
		249
		250	* * * * * * * * * * * * * * * * * *
		251
		252
		253	Very rarely, people want to tweak EV even more, e.g. to exclude
		254	or include certain watcher types or backends. This can be done by adding
		255	extra -D options here, or via the EV_EXTRA_DEFS environment variable.
		256
		257	For example, if you run into compile problems because of missing memory
		258	fences (or you just want extra performance), you can tell EV to not support
		259	smp and threads via -DEV_NO_THREADS.
		260
		261	Normal persons just press enter.
		262
		263	EOF
		264
		265	$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
		266
		267	print <<EOF;
		268
		269	* * * * * * * * * * * * * * * * * *
		270
		271
		272	EOF
		273
		274	my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
128		275
129	WriteMakefile(	276	WriteMakefile(
130	dist => {	277	dist => {
131	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',	278	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
132	COMPRESS => 'gzip -9v',	279	COMPRESS => 'gzip -9v',
133	SUFFIX => '.gz',	280	SUFFIX => '.gz',
134	},	281	},
135	depend => {	282	depend => {
136	"EV.c" => "EV/EVAPI.h "	283	"EV.c" => "EV/EVAPI.h "
137	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "	284	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
138	. "libev/event.h libev/event.c libev/evdns.h libev/evdns.c",	285	. "libev/ev_vars.h libev/ev_wrap.h",
139	},	286	},
140	INC => "-Ilibev",	287	INC => "-Ilibev",
141	DEFINE => "$DEFINE",	288	DEFINE => "$DEFINE",
142	NAME => "EV",	289	NAME => "EV",
143	LIBS => [$LIBS],	290	LIBS => [$LIBS],
		291	PREREQ_PM => {
		292	@anyevent,
		293	"common::sense" => 0,
		294	},
144	VERSION_FROM => "EV.pm",	295	VERSION_FROM => "EV.pm",
145	PM => {	296	PM => {
146	'EV.pm' => '$(INST_LIBDIR)/EV.pm',	297	'EV.pm' => '$(INST_LIBDIR)/EV.pm',
147	'EV/AnyEvent.pm' => '$(INST_LIBDIR)/EV/AnyEvent.pm',
148	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
149	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',	298	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
150	'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',	299	'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
151	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',	300	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
		301	'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod',
152	},	302	},
		303	MAN3PODS => {
		304	'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
		305	'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
		306	'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
		307	},
153	);	308	);
154		309
155		310

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Comparing EV/Makefile.PL (file contents): Revision 1.17 by root, Thu Nov 8 00:44:17 2007 UTC vs. Revision 1.53 by root, Tue Jan 15 21:49:38 2013 UTC

Diff Legend

Comparing EV/Makefile.PL (file contents):
Revision 1.17 by root, Thu Nov 8 00:44:17 2007 UTC vs.
Revision 1.53 by root, Tue Jan 15 21:49:38 2013 UTC