ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/EV/Makefile.PL
(Generate patch)

Comparing EV/Makefile.PL (file contents):
Revision 1.16 by root, Tue Nov 6 17:20:42 2007 UTC vs.
Revision 1.35 by root, Thu Oct 2 12:27:56 2008 UTC

1use 5.006; 1use 5.006;
2 2
3use Config; 3use Config;
4use ExtUtils::MakeMaker; 4use ExtUtils::MakeMaker;
5
6 5
7unless (-e "libev/ev_epoll.c") { 6unless (-e "libev/ev_epoll.c") {
8 print <<EOF; 7 print <<EOF;
9 8
10*** 9***
… …
17 exit 1; 16 exit 1;
18} 17}
19 18
20print <<EOF; 19print <<EOF;
21 20
22
23*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 21*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
22
24 23
25Welcome to EV configuration. If you are in a hurry, just press return here 24Welcome to EV configuration. If you are in a hurry, just press return here
26and hope for the best. The defaults should usually do. 25and hope for the best. The defaults should usually do.
27 26
28EOF 27EOF
… …
31 $ENV{PERL_MM_USE_DEFAULT} = 1; 30 $ENV{PERL_MM_USE_DEFAULT} = 1;
32} 31}
33 32
34print <<EOF; 33print <<EOF;
35 34
36
37*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 35*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
36
38 37
39POSIX optionally offers support for a monotonic clock source. EV 38POSIX optionally offers support for a monotonic clock source. EV
40can take advantage of this clock source to detect time jumps 39can take advantage of this clock source to detect time jumps
41reliably. Unfortunately, some systems are bound to be broken, so you can 40reliably. Unfortunately, some systems are bound to be broken, so you can
42disable this here: you can completely disable the detection and use of 41disable this here: you can completely disable the detection and use of
43the monotonic clock by answering 'n' here. Support for this clock type 42the monotonic clock by answering 'n' here. Support for this clock type
44will otherwise be autodetected at both compile- and runtime. 43will otherwise be autodetected at both compile- and runtime. (this setting
44currently affects the use of nanosleep over select as well).
45 45
46EOF 46EOF
47 47
48if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) { 48$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
49 $DEFINE .= " -DEV_USE_MONOTONIC";
50}
51 49
52print <<EOF; 50print <<EOF;
53 51
54
55*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 52*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
53
56 54
57POSIX optionally offers support for a (potentially) high-resolution 55POSIX optionally offers support for a (potentially) high-resolution
58realtime clock interface. In a good implementation, using it is faster 56realtime clock interface. In a good implementation, using it is faster
59than the normal method of using gettimeofday. Unfortunately, this option 57than the normal method of using gettimeofday. Unfortunately, this option
60is also bound to be broken on some systems, so you can disable use and 58is also bound to be broken on some systems, so you can disable use and
61probing of this feature altogether here. Otherwise support for this clock 59probing of this feature altogether here. Otherwise support for this clock
62type will be autodetected at compiletime. 60type will be autodetected at compiletime.
63 61
64EOF 62EOF
65 63
66if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) { 64$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/));
65
66print <<EOF;
67
68*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
69
70
71Another useful bit of functionality is the Linux eventfd, which is useful
72for faster signal handling (don't care) and intra-thread communications
73(mostly useful for embedding). Kernel support for this will be probed at
74runtime, but your libc must contain the necessary wrapper. Glibc 2.7 and
75later should have this wrapper.
76
77EOF
78
79$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", (-e "/usr/include/sys/eventfd.h") || $ENV{EV_EVENTFD} ? "y" : "n") =~ /[yY]/));
80
81print <<EOF;
82
83*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
84
85
86EV can use various backends with various portability issue. The select
87backend is the most portable and makes for a good fallback, but it can be
88limited to a low number of file descriptors and/or might not compile. If
89you have problems with compiling ev_select.c, you might try to play around
90with disabling it here, or forcing it to use the fd_set provided by your
91OS, via the next question. I highly recommend keeping it in.
92
93EOF
94
95if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
67 $DEFINE .= " -DEV_USE_REALTIME=0"; 96 $DEFINE .= " -DEV_USE_SELECT=1";
68}
69 97
70print <<EOF; 98 print <<EOF;
71 99
72
73*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 100*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
74 101
75EV by default uses select, which makes it hard to write efficient servers,
76especially if the number of active conencitons is much lower than the open
77ones. GNU/Linux systems have a more scalable method called "epoll", which
78EV can use. For this to work, both your kernel and glibc have to support
79epoll, but if you can compile it, the detection will be done at runtime,
80and EV will safely fall back to using select when epoll isn't available.
81If unsure, accept the default.
82 102
83EOF 103The select backend can operate in two modes. One uses the system-provided
104fd_set and is usually limited to 1024 file descriptors (64 on windows),
105the other requires your header files to define NFDBITS and declare a
106suitable fd_mask type. If you run into problems compiling ev_select.c, you
107can try forcing the use of the system fd_set here.
84 108
85if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) { 109EOF
110
111 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
112 $DEFINE .= " -DEV_SELECT_USE_FD_SET";
113 }
114} else {
86 $DEFINE .= " -DEV_USE_EPOLL"; 115 $DEFINE .= " -DEV_USE_SELECT=0";
87} 116}
88 117
89print <<EOF; 118print <<EOF;
90 119
91
92*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 120*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
121
122
123The second very portable backend is poll(2). It does not exist on windows
124and various versions of Mac OS X (and on the other versions it simply
125doesn't work), but works basically everywhere else. It is recommended to use
126the default here unless you run into compile problems in ev_poll.c.
127
128EOF
129
130$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/));
131
132print <<EOF;
133
134*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
135
136
137Select and poll make it hard to write efficient servers, especially if the
138number of active connections is much lower than the watched ones. GNU/Linux
139systems have a more scalable method called "epoll", which EV can use. For
140this to work, both your kernel and glibc have to support epoll, but if you
141can compile it, the detection will be done at runtime, and EV will safely
142fall back to using select when epoll isn't available. If unsure, accept
143the default.
144
145EOF
146
147$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/));
148
149print <<EOF;
150
151*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
152
93 153
94Similarly to the epoll backend above, EV can take advantage of kqueue on 154Similarly to the epoll backend above, EV can take advantage of kqueue on
95many BSD systems (it seems to be broken on Mac OS X though). The kqueue
96backend has not been tested, however, so it is disabled by default. Please
97test (and preferably fix) the kqueue backend when you have a machine
98supporting it. Support for kqueue will be detected at runtime, with a 155many BSD systems. Support for kqueue will be detected at runtime, with a
99safe fallback to other methods when it cannot be used. 156safe fallback to other methods when it cannot be used.
100 157
101EOF 158Note that kqueue is broken on most operating systems, so by default it
159won't be used on many platforms, but you can still create your own event
160loop with qkueue backend.
102 161
103if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) { 162Here is what we know:
104 $DEFINE .= " -DEV_USE_KQUEUE";
105}
106 163
107print <<EOF; 164NetBSD: partially working in at least 3.1. Yeah! :)
165FreeBSD: broken on at least 6.2-STABLE,
166 sockets *likely* work, ptys definitely don't.
167OpenBSD: reports indicate that it likely doesn't work
168 (similar problems as on FreeBSD).
169OS X: completely, utterly broken on at least < 10.5.
108 170
171EOF
109 172
173my $can_kqueue = -e "/usr/include/sys/event.h";
174
175$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
176
177print <<EOF;
178
110*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 179*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
180
181
182Similarly to the kqueue backend above, EV can take advantage of the
183solaris 10 event port interface. Support for event ports will be detected
184at runtime, with a safe fallback to other methods when it cannot be used.
185
186EOF
187
188$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/));
189
190print <<EOF;
191
192*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
193
111 194
112EV needs the functions pthread_atfork and clock_gettime. On most systems 195EV needs the functions pthread_atfork and clock_gettime. On most systems
113you need some special libraries for this (such as -lrt and -lpthread). You 196you need some special libraries for this (such as -lrt and -lpthread). You
114can specify additional libraries to provide these calls now, or accept the 197can specify additional libraries to provide these calls (and any other
115default. 198required by EV) now, or accept the default.
116 199
117EOF 200EOF
118 201
202$SOLARIS_LIBS = $^O =~ /solaris/ ? " -lsocket -lnsl" : "";
203
119$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt"; 204$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$SOLARIS_LIBS";
120 205
121 206
122print <<EOF; 207print <<EOF;
123 208
124
125*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 209*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
126 210
211
212A backend of a different kind is the Linux inotify(7) interface, which can
213be used to speed up (and reduce resource consumption) of stat watchers. If
214you have it, it is usually a good idea to enable it.
215
127EOF 216EOF
217
218my $can_inotify = -e "/usr/include/sys/inotify.h";
219
220$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
221
222print <<EOF;
223
224*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
225
226
227EOF
228
229my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : ();
128 230
129WriteMakefile( 231WriteMakefile(
130 dist => { 232 dist => {
131 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 233 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
132 COMPRESS => 'gzip -9v', 234 COMPRESS => 'gzip -9v',
133 SUFFIX => '.gz', 235 SUFFIX => '.gz',
134 }, 236 },
135 depend => { 237 depend => {
136 "EV.c" => "EV/EVAPI.h " 238 "EV.c" => "EV/EVAPI.h "
137 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c " 239 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
138 . "libev/event.h libev/event.c libev/evdns.h libev/evdns.c", 240 . "libev/ev_vars.h libev/ev_wrap.h",
139 }, 241 },
140 INC => "-Ilibev", 242 INC => "-Ilibev",
141 DEFINE => "$DEFINE", 243 DEFINE => "$DEFINE",
142 NAME => "EV", 244 NAME => "EV",
143 LIBS => [$LIBS], 245 LIBS => [$LIBS],
246 PREREQ_PM => {
247 @anyevent,
248 },
144 VERSION_FROM => "EV.pm", 249 VERSION_FROM => "EV.pm",
145 PM => { 250 PM => {
146 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 251 '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', 252 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
150 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 253 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
151 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 254 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
255 'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod',
152 }, 256 },
257 MAN3PODS => {
258 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
259 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
260 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
261 },
153); 262);
154 263
155 264

Diff Legend

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