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Comparing EV/Makefile.PL (file contents):
Revision 1.28 by root, Fri Dec 21 04:41:12 2007 UTC vs.
Revision 1.32 by root, Sun Apr 6 09:53:16 2008 UTC

… …
38POSIX optionally offers support for a monotonic clock source. EV 38POSIX optionally offers support for a monotonic clock source. EV
39can take advantage of this clock source to detect time jumps 39can take advantage of this clock source to detect time jumps
40reliably. Unfortunately, some systems are bound to be broken, so you can 40reliably. Unfortunately, some systems are bound to be broken, so you can
41disable this here: you can completely disable the detection and use of 41disable this here: you can completely disable the detection and use of
42the monotonic clock by answering 'n' here. Support for this clock type 42the monotonic clock by answering 'n' here. Support for this clock type
43will 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).
44 45
45EOF 46EOF
46 47
47$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/)); 48$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
48 49
… …
59type will be autodetected at compiletime. 60type will be autodetected at compiletime.
60 61
61EOF 62EOF
62 63
63$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/)); 64$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") ? "y" : "n") =~ /[yY]/));
64 80
65print <<EOF; 81print <<EOF;
66 82
67*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 83*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
68 84
… …
137 153
138Similarly 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
139many BSD systems. Support for kqueue will be detected at runtime, with a 155many BSD systems. Support for kqueue will be detected at runtime, with a
140safe fallback to other methods when it cannot be used. 156safe fallback to other methods when it cannot be used.
141 157
142Note that kqueue is broken on most operating systems, so it defaults to 158Note that kqueue is broken on most operating systems, so by default it
143'n' on everything but netbsd. Here is what we know: 159won't be used on many platforms, but you can still create your own event
160loop with qkueue backend.
161
162Here is what we know:
144 163
145NetBSD: partially working in at least 3.1. Yeah! :) 164NetBSD: partially working in at least 3.1. Yeah! :)
146FreeBSD: broken on at least 6.2-STABLE, 165FreeBSD: broken on at least 6.2-STABLE,
147 sockets *likely* work, ptys definitely don't. 166 sockets *likely* work, ptys definitely don't.
148OpenBSD: reports indicate that it likely doesn't work 167OpenBSD: reports indicate that it likely doesn't work
… …
216 SUFFIX => '.gz', 235 SUFFIX => '.gz',
217 }, 236 },
218 depend => { 237 depend => {
219 "EV.c" => "EV/EVAPI.h " 238 "EV.c" => "EV/EVAPI.h "
220 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c " 239 . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
221 . "libev/event.h libev/event.c libev/ev_vars.h libev/ev_wrap.h", 240 . "libev/ev_vars.h libev/ev_wrap.h",
222 }, 241 },
223 INC => "-Ilibev", 242 INC => "-Ilibev",
224 DEFINE => "$DEFINE", 243 DEFINE => "$DEFINE",
225 NAME => "EV", 244 NAME => "EV",
226 LIBS => [$LIBS], 245 LIBS => [$LIBS],

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