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

Comparing EV/Makefile.PL (file contents):
Revision 1.20 by root, Wed Nov 14 22:30:50 2007 UTC vs.
Revision 1.38 by root, Thu Nov 20 00:35:16 2008 UTC

…		…
1	use 5.006;	1	use 5.006;
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	unless (-e "libev/ev_epoll.c") {	7	unless (-e "libev/ev_epoll.c") {
7	print <<EOF;	8	print <<EOF;
16	exit 1;	17	exit 1;
17	}	18	}
18		19
19	print <<EOF;	20	print <<EOF;
20		21
21
22	* * * * * * * * * * * * * * * * * *	22	* * * * * * * * * * * * * * * * * *
		23
23		24
24	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
25	and hope for the best. The defaults should usually do.	26	and hope for the best. The defaults should usually do.
26		27
27	EOF	28	EOF
…		…
30	$ENV{PERL_MM_USE_DEFAULT} = 1;	31	$ENV{PERL_MM_USE_DEFAULT} = 1;
31	}	32	}
32		33
33	print <<EOF;	34	print <<EOF;
34		35
35
36	* * * * * * * * * * * * * * * * * *	36	* * * * * * * * * * * * * * * * * *
		37
37		38
38	POSIX optionally offers support for a monotonic clock source. EV	39	POSIX optionally offers support for a monotonic clock source. EV
39	can take advantage of this clock source to detect time jumps	40	can take advantage of this clock source to detect time jumps
40	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
41	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
42	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
43	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).
44		46
45	EOF	47	EOF
46		48
47	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]/));
48	$DEFINE .= " -DEV_USE_MONOTONIC";
49	}
50		50
51	print <<EOF;	51	print <<EOF;
52		52
53
54	* * * * * * * * * * * * * * * * * *	53	* * * * * * * * * * * * * * * * * *
		54
55		55
56	POSIX optionally offers support for a (potentially) high-resolution	56	POSIX optionally offers support for a (potentially) high-resolution
57	realtime clock interface. In a good implementation, using it is faster	57	realtime clock interface. In a good implementation, using it is faster
58	than the normal method of using gettimeofday. Unfortunately, this option	58	than the normal method of using gettimeofday. Unfortunately, this option
59	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, so you can disable use and
60	probing of this feature altogether here. Otherwise support for this clock	60	probing of this feature altogether here. Otherwise support for this clock
61	type will be autodetected at compiletime.	61	type will be autodetected at compiletime.
62		62
63	EOF	63	EOF
64		64
65	if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) {	65	$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/));
66	$DEFINE .= " -DEV_USE_REALTIME=0";
67	}
68		66
69	print <<EOF;	67	print <<EOF;
70		68
71
72	* * * * * * * * * * * * * * * * * *	69	* * * * * * * * * * * * * * * * * *
		70
73		71
74	EV can use various backends with various portability issue. The select	72	EV can use various backends with various portability issue. The select
75	backend is the most portable and makes for a good fallback, but it can be	73	backend is the most portable and makes for a good fallback, but it can be
76	limited to a low number of file descriptors and/or might not compile. If	74	limited to a low number of file descriptors and/or might not compile. If
77	you have problems with compiling ev_select., you might try to play around	75	you have problems with compiling ev_select.c, you might try to play around
78	with disabling it here, or forcing it to use the fd_set provided by your	76	with disabling it here, or forcing it to use the fd_set provided by your
79	OS, via the next question. I highly recommend keeping it in.	77	OS, via the next question. I highly recommend keeping it in.
80		78
81	EOF	79	EOF
82		80
83	if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {	81	if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
84	$DEFINE .= " -DEV_USE_SELECT";	82	$DEFINE .= " -DEV_USE_SELECT=1";
85		83
86	print <<EOF;	84	print <<EOF;
87		85
88
89	* * * * * * * * * * * * * * * * * *	86	* * * * * * * * * * * * * * * * * *
		87
90		88
91	The select backend can operate in two modes. One uses the system-provided	89	The select backend can operate in two modes. One uses the system-provided
92	fd_set and is usually limited to 1024 file descriptors (64 on windows),	90	fd_set and is usually limited to 1024 file descriptors (64 on windows),
93	the other requires your header files to define NFDBITS and declare a	91	the other requires your header files to define NFDBITS and declare a
94	suitable fd_mask type. If you run into problems compiling ev_select.c, you	92	suitable fd_mask type. If you run into problems compiling ev_select.c, you
…		…
97	EOF	95	EOF
98		96
99	if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {	97	if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
100	$DEFINE .= " -DEV_SELECT_USE_FD_SET";	98	$DEFINE .= " -DEV_SELECT_USE_FD_SET";
101	}	99	}
		100	} else {
		101	$DEFINE .= " -DEV_USE_SELECT=0";
102	}	102	}
103		103
104	print <<EOF;	104	print <<EOF;
105		105
106
107	* * * * * * * * * * * * * * * * * *	106	* * * * * * * * * * * * * * * * * *
		107
108		108
109	The second very portable backend is poll(2). It does not exist on windows	109	The second very portable backend is poll(2). It does not exist on windows
110	and various versions of Mac OS X (and on the other versions it simply	110	and various versions of Mac OS X (and on the other versions it simply
111	doesn't work), but works basically everywhere else. It is recommended to use	111	doesn't work), but works basically everywhere else. It is recommended to use
112	the default here unless you run into compile problems in ev_poll.c.	112	the default here unless you run into compile problems in ev_poll.c.
113		113
114	EOF	114	EOF
115		115
116	if (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/) {	116	$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/));
117	$DEFINE .= " -DEV_USE_POLL";
118	}
119		117
120	print <<EOF;	118	print <<EOF;
121		119
122
123	* * * * * * * * * * * * * * * * * *	120	* * * * * * * * * * * * * * * * * *
124		121
125	EV by default uses select, which makes it hard to write efficient servers,	122
126	especially if the number of active conencitons is much lower than the open	123	Select and poll make it hard to write efficient servers, especially if the
		124	number of active connections is much lower than the watched ones. GNU/Linux
127	ones. GNU/Linux systems have a more scalable method called "epoll", which	125	systems have a more scalable method called "epoll", which EV can use. For
128	EV can use. For this to work, both your kernel and glibc have to support	126	this to work, both your kernel and glibc have to support epoll, but if you
129	epoll, but if you can compile it, the detection will be done at runtime,	127	can compile it, the detection will be done at runtime, and EV will safely
130	and EV will safely fall back to using select when epoll isn't available.	128	fall back to using select when epoll isn't available. If unsure, accept
131	If unsure, accept the default.	129	the default.
132		130
133	EOF	131	EOF
134		132
135	if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) {	133	my $can_epoll = -e "/usr/include/sys/epoll.h";
136	$DEFINE .= " -DEV_USE_EPOLL";	134	$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
137	}	135	$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
138		136
139	print <<EOF;	137	print <<EOF;
140		138
141
142	* * * * * * * * * * * * * * * * * *	139	* * * * * * * * * * * * * * * * * *
143		140
		141
144	Similarly to the epoll backend above, EV can take advantage of kqueue	142	Similarly to the epoll backend above, EV can take advantage of kqueue on
145	on many BSD systems (it seems to be broken on Mac OS X though, but what	143	many BSD systems. Support for kqueue will be detected at runtime, with a
146	isn't broken on that shoddy platform... ah yes, the cash gushing by apple,	144	safe fallback to other methods when it cannot be used.
147	selling defective software works perfectly there). Support for kqueue will	145
		146	Note that kqueue is broken on most operating systems, so by default it
		147	won't be used on many platforms, but you can still create your own event
		148	loop with kqueue backend.
		149
		150	Here is what we know:
		151
		152	NetBSD: partially working in at least 3.1. Yeah! :)
		153	FreeBSD: broken on at least 6.2-STABLE,
		154	sockets likely work, ptys definitely don't.
		155	OpenBSD: reports indicate that it likely doesn't work
		156	(similar problems as on FreeBSD).
		157	OS X: completely, utterly broken on at least < 10.5.
		158
		159	EOF
		160
		161	my $can_kqueue = -e "/usr/include/sys/event.h";
		162	$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
		163	$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
		164
		165	print <<EOF;
		166
		167	* * * * * * * * * * * * * * * * * *
		168
		169
		170	Similarly to the kqueue backend above, EV can take advantage of the
		171	solaris 10 event port interface. Support for event ports will be detected
148	be detected at runtime, with a safe fallback to other methods when it	172	at runtime, with a safe fallback to other methods when it cannot be used.
149	cannot be used.
150		173
151	EOF	174	EOF
152		175
153	if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) {	176	$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/));
154	$DEFINE .= " -DEV_USE_KQUEUE";
155	}
156		177
157	print <<EOF;	178	print <<EOF;
158		179
159
160	* * * * * * * * * * * * * * * * * *	180	* * * * * * * * * * * * * * * * * *
		181
161		182
162	EV needs the functions pthread_atfork and clock_gettime. On most systems	183	EV needs the functions pthread_atfork and clock_gettime. On most systems
163	you need some special libraries for this (such as -lrt and -lpthread). You	184	you need some special libraries for this (such as -lrt and -lpthread). You
164	can specify additional libraries to provide these calls now, or accept the	185	can specify additional libraries to provide these calls (and any other
165	default.	186	required by EV) now, or accept the default.
166		187
167	EOF	188	EOF
168		189
		190	my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
		191	my $librt = $^O =~ /linux/i ? "-lpthread" : "-lpthread -lrt";
169	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt";	192	my $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "$librt $solaris_libs";
170		193
171		194
172	print <<EOF;	195	print <<EOF;
173		196
174
175	* * * * * * * * * * * * * * * * * *	197	* * * * * * * * * * * * * * * * * *
		198
		199
		200	A backend of a different kind is the Linux inotify(7) interface, which can
		201	be used to speed up (and reduce resource consumption) of stat watchers. If
		202	you have it, it is usually a good idea to enable it.
		203
		204	EOF
		205
		206	my $can_inotify = -e "/usr/include/sys/inotify.h";
		207	$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
		208	$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
		209
		210	print <<EOF;
		211
		212	* * * * * * * * * * * * * * * * * *
		213
		214
		215	Another useful bit of functionality is the Linux eventfd, which is useful
		216	for faster signal handling (don't care) and intra-thread communications
		217	(more relevant). Kernel support for this will be probed at runtime, but
		218	your libc must contain the necessary wrapper. Glibc 2.7 and later should
		219	have this wrapper.
		220
		221	EOF
		222
		223	my $can_eventfd = -e "/usr/include/sys/eventfd.h";
		224	$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
		225	$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
		226
		227	print <<EOF;
		228
		229	* * * * * * * * * * * * * * * * * *
		230
176		231
177	EOF	232	EOF
178		233
179	my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : ();	234	my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : ();
180		235
…		…
185	SUFFIX => '.gz',	240	SUFFIX => '.gz',
186	},	241	},
187	depend => {	242	depend => {
188	"EV.c" => "EV/EVAPI.h "	243	"EV.c" => "EV/EVAPI.h "
189	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "	244	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
190	. "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h",	245	. "libev/ev_vars.h libev/ev_wrap.h",
191	},	246	},
192	INC => "-Ilibev",	247	INC => "-Ilibev",
193	DEFINE => "$DEFINE",	248	DEFINE => "$DEFINE",
194	NAME => "EV",	249	NAME => "EV",
195	LIBS => [$LIBS],	250	LIBS => [$LIBS],
…		…
197	@anyevent,	252	@anyevent,
198	},	253	},
199	VERSION_FROM => "EV.pm",	254	VERSION_FROM => "EV.pm",
200	PM => {	255	PM => {
201	'EV.pm' => '$(INST_LIBDIR)/EV.pm',	256	'EV.pm' => '$(INST_LIBDIR)/EV.pm',
202	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
203	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',	257	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
204	'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',	258	'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
205	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',	259	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
		260	'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod',
206	},	261	},
		262	MAN3PODS => {
		263	'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
		264	'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
		265	'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
		266	},
207	);	267	);
208		268
209		269

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Comparing EV/Makefile.PL (file contents): Revision 1.20 by root, Wed Nov 14 22:30:50 2007 UTC vs. Revision 1.38 by root, Thu Nov 20 00:35:16 2008 UTC

Diff Legend

Comparing EV/Makefile.PL (file contents):
Revision 1.20 by root, Wed Nov 14 22:30:50 2007 UTC vs.
Revision 1.38 by root, Thu Nov 20 00:35:16 2008 UTC