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

Comparing EV/Makefile.PL (file contents):
Revision 1.58 by root, Sat Jun 22 15:50:36 2019 UTC vs.
Revision 1.68 by root, Tue Feb 18 18:26:47 2020 UTC

…		…
7	scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth}	7	scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth}
8	}	8	}
9		9
10	my $DEFINE;	10	my $DEFINE;
11		11
12	unless (-e "libev/ev_epoll.c") {	12	unless (-e "libev/ev_iouring.c") {
13	print <<EOF;	13	print <<EOF;
14		14
15	***	15	***
16	*** 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,
17	*** 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
…		…
113		113
114		114
115	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
116	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
117	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
118	the default here unless you run into compile problems in ev_poll.c.	118	the default here unless you run into compilation problems in ev_poll.c.
119		119
120	EOF	120	EOF
121		121
122	$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/));	122	$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/));
123		123
…		…
156	default.	156	default.
157		157
158	EOF	158	EOF
159		159
160	my $can_linuxaio = have_inc "linux/aio_abi.h";	160	my $can_linuxaio = have_inc "linux/aio_abi.h";
161	$can_linuxaio or die;
162	$can_linuxaio = $ENV{EV_LINUXAIO} if exists $ENV{EV_LINUXAIO};	161	$can_linuxaio = $ENV{EV_LINUXAIO} if exists $ENV{EV_LINUXAIO};
163	$DEFINE .= " -DEV_USE_LINUXAIO=" . (0 + (prompt ("Enable linux aio backend (y/n)?", $can_linuxaio ? "y" : "n") =~ /[yY]/));	162	$can_linuxaio = 0 + (prompt ("Enable linux aio backend (y/n)?", $can_linuxaio ? "y" : "n") =~ /[yY]/);
		163	$DEFINE .= " -DEV_USE_LINUXAIO=$can_linuxaio";
164		164
		165	if ($can_linuxaio) {
165	print <<EOF;	166	print <<EOF;
166		167
167	* * * * * * * * * * * * * * * * * *	168	* * * * * * * * * * * * * * * * * *
168		169
169		170
170	Similarly to the epoll backend above, EV can take advantage of kqueue on	171	The previously mentioned Linux AIO backend is experimental and will not
171	many BSD systems. Support for kqueue will be detected at runtime, with a	172	be used unless requested explicitly. You can, howeer, choose to make ti a
172	safe fallback to other methods when it cannot be used.	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.
173		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
		190	Linux 4.19 introduced another event polling interface, "io_uring". While
		191	this API is far superior to epoll and almost rivals linuxaio, it also
		192	suffers from the same issues as kqueue typically does: only a subset of
		193	file types are supported (as of 5.2). It is also very buggy still, and
		194	most importantly, very very slow for most workloads. Therefore, this
		195	backend is not used by default, even when it is compiled in, and you have
		196	to request it explicitly, e.g. with LIBEV_FLAGS=128. If unsure, accept the
		197	default.
		198
		199	EOF
		200
		201	my $can_iouring = have_inc "linux/fs.h";
		202	$can_iouring = $ENV{EV_IOURING} if exists $ENV{EV_IOURING};
		203	$can_iouring = 0 + (prompt ("Enable linux io_uring backend (y/n)?", $can_iouring ? "y" : "n") =~ /[yY]/);
		204	$DEFINE .= " -DEV_USE_IOURING=$can_iouring";
		205
		206	if ($can_iouring) {
		207	print <<EOF;
		208
		209	* * * * * * * * * * * * * * * * * *
		210
		211
		212	The previously mentioned Linux io_uring is experimental and will not be
		213	used unless requested explicitly. You can, howeer, choose to make ti a
		214	recommended basckend, which means it will be chosen if available even when
		215	not explicitly asked for, in preference to epoll on GNU/Linux. This option
		216	is likely temporary. When unsure, accept the default.
		217
		218	EOF
		219
		220	my $recommend_iouring = 0;
		221	$recommend_iouring = $ENV{EV_RECOMMEND_IOURING} if exists $ENV{EV_RECOMMEND_IOURING};
		222	$recommend_iouring = 0 + (prompt ("Treat io_uring as a recommended backend (y/n)?", $recommend_iouring ? "y" : "n") =~ /[yY]/);
		223	$DEFINE .= " -DEV_RECOMMEND_IOURING=$recommend_iouring";
		224	}
		225
		226	print <<EOF;
		227
		228	* * * * * * * * * * * * * * * * * *
		229
		230
		231	EV can take advantage of kqueue on many BSD systems. Support for kqueue
		232	will be detected at runtime, with a safe fallback to other methods when it
		233	cannot be used.
		234
174	Note that kqueue is broken on most operating systems, so by default it	235	Note that kqueue is subtly broken on most operating systems, so by default
175	won't be used on many platforms, but you can still create your own event	236	it won't be used on many platforms, but you can still create your own
176	loop with kqueue backend if you ask specifically for it.	237	event loop with kqueue backend if you ask specifically for it.
177		238
178	Here is what we know:	239	Here is what we know:
179		240
180	NetBSD: partially working in at least 3.1 and later. Yeah! :)	241	NetBSD: partially working in at least 3.1 and later. Yeah! :)
181	FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,	242	FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
…		…
184	(similar problems as on FreeBSD).	245	(similar problems as on FreeBSD).
185	OS X: completely, utterly broken on at least <= 10.6.	246	OS X: completely, utterly broken on at least <= 10.6.
186		247
187	EOF	248	EOF
188		249
		250	# minix has all the header files, but no implementation. won-der-ful.
189	my $can_kqueue = have_inc "sys/event.h";	251	my $can_kqueue = have_inc "sys/event.h" && $^O ne "minix";
190	$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};	252	$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
191	$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));	253	$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
192		254
193	print <<EOF;	255	print <<EOF;
194		256
…		…
277	print <<EOF;	339	print <<EOF;
278		340
279	* * * * * * * * * * * * * * * * * *	341	* * * * * * * * * * * * * * * * * *
280		342
281		343
		344	Linux kernels can notify userspace about realtime clock timejumps
		345	using timerfd. Libev by default will try to take advantage of this if
		346	possible. You can completely disable the detection and use of timerfd for
		347	this purpose by answering 'n' here. Support for timerfd will otherwise be
		348	autodetected at both compile- and runtime.
		349
		350	EOF
		351
		352	unless (prompt ("Enable optional support for timerfd to detect timejumps (y/n)?", "y") =~ /[yY]/) {
		353	$DEFINE .= " -DEV_USE_TIMERFD=0";
		354	}
		355
		356	print <<EOF;
		357
		358	* * * * * * * * * * * * * * * * * *
		359
		360
		361	Libev contains numerous internal assert() invocations to check for
		362	consistency and user errors. These are normally enabled, but most
		363	perl builds disable this error reporting mechanism by default. You
		364	can re-enable these asserts here. Enabling them might help you catch
		365	programming bugs earlier, but might cause a small slowdown. Also, failures
		366	will be reported by aboritng your program, instead of throwing a perl
		367	exception.
		368
		369	If unsure, enable this if you only use this perl installation for
		370	development, and leave it off for use in production environments.
		371
		372	EOF
		373
		374	my $enable_assertions = 0;
		375	$enable_assertions = 0 + (prompt ("Make sure assertions are enabled? (y/n)?", $enable_assertions ? "y" : "n") =~ /[yY]/);
		376	$DEFINE .= " -DEV_ENABLE_ASSERTIONS=1" if $enable_assertions;
		377
		378	print <<EOF;
		379
		380	* * * * * * * * * * * * * * * * * *
		381
		382
282	Very rarely, people want to tweak EV even more, e.g. to exclude	383	Very rarely, people want to tweak EV even more, e.g. to exclude
283	or include certain watcher types or backends. This can be done by adding	384	or include certain watcher types or backends. This can be done by adding
284	extra -D options here, or via the EV_EXTRA_DEFS environment variable.	385	extra -D options here, or via the EV_EXTRA_DEFS environment variable.
285		386
286	For example, if you run into compile problems because of missing memory	387	For example, if you run into compilation problems because of missing memory
287	fences (or you just want extra performance), you can tell EV to not support	388	fences (or you just want extra performance), you can tell EV to not support
288	smp and threads via -DEV_NO_THREADS.	389	smp and threads via -DEV_NO_THREADS.
289		390
290	Normal persons just press enter.	391	Most people would just press enter.
291		392
292	EOF	393	EOF
293		394
294	$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";	395	$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
295		396
…		…
308	COMPRESS => 'gzip -9v',	409	COMPRESS => 'gzip -9v',
309	SUFFIX => '.gz',	410	SUFFIX => '.gz',
310	},	411	},
311	depend => {	412	depend => {
312	"EV.c" => "EV/EVAPI.h "	413	"EV.c" => "EV/EVAPI.h "
313	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "	414	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c libev/ev_linuxaio.c "
314	. "libev/ev_vars.h libev/ev_wrap.h",	415	. "libev/ev_vars.h libev/ev_wrap.h",
315	},	416	},
316	INC => "-Ilibev",	417	INC => "-Ilibev",
317	DEFINE => "$DEFINE",	418	DEFINE => "$DEFINE",
318	NAME => "EV",	419	NAME => "EV",
…		…
335	'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',	436	'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
336	'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',	437	'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
337	},	438	},
338	);	439	);
339		440
340

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Comparing EV/Makefile.PL (file contents): Revision 1.58 by root, Sat Jun 22 15:50:36 2019 UTC vs. Revision 1.68 by root, Tue Feb 18 18:26:47 2020 UTC

Diff Legend

Comparing EV/Makefile.PL (file contents):
Revision 1.58 by root, Sat Jun 22 15:50:36 2019 UTC vs.
Revision 1.68 by root, Tue Feb 18 18:26:47 2020 UTC