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use 5.006; |
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|
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use Config; |
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use ExtUtils::MakeMaker; |
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|
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unless (-e "libev/ev_epoll.c") { |
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print <<EOF; |
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|
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*** |
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*** ERROR: libev is missing or damaged. If you used a CVS check-out of EV, |
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*** you also have to check-out the "libev" module from the same CVS |
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*** repository into the EV dir (i.e. EV/libev from outside). |
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*** |
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|
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EOF |
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exit 1; |
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} |
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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Welcome to EV configuration. If you are in a hurry, just press return here |
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and hope for the best. The defaults should usually do. |
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|
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EOF |
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|
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if (prompt ("Skip further questions and use defaults (y/n)?", "y") =~ /[yY]/) { |
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$ENV{PERL_MM_USE_DEFAULT} = 1; |
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} |
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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POSIX optionally offers support for a monotonic clock source. EV |
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can take advantage of this clock source to detect time jumps |
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reliably. Unfortunately, some systems are bound to be broken, so you can |
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disable this here: you can completely disable the detection and use of |
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the monotonic clock by answering 'n' here. Support for this clock type |
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will otherwise be autodetected at both compile- and runtime. |
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|
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EOF |
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|
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if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) { |
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$DEFINE .= " -DEV_USE_MONOTONIC"; |
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} |
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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POSIX optionally offers support for a (potentially) high-resolution |
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realtime clock interface. In a good implementation, using it is faster |
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than the normal method of using gettimeofday. Unfortunately, this option |
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is also bound to be broken on some systems, so you can disable use and |
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probing of this feature altogether here. Otherwise support for this clock |
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type will be autodetected at compiletime. |
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|
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EOF |
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|
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if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) { |
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$DEFINE .= " -DEV_USE_REALTIME=0"; |
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} |
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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EV can use various backends with various portability issue. The select |
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backend is the most portable and makes for a good fallback, but it can be |
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limited to a low number of file descriptors and/or might not compile. If |
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you have problems with compiling ev_select., you might try to play around |
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with disabling it here, or forcing it to use the fd_set provided by your |
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OS, via the next question. I highly recommend keeping it in. |
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|
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EOF |
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|
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if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) { |
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$DEFINE .= " -DEV_USE_SELECT"; |
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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The select backend can operate in two modes. One uses the system-provided |
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fd_set and is usually limited to 1024 file descriptors (64 on windows), |
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the other requires your header files to define NFDBITS and declare a |
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suitable fd_mask type. If you run into problems compiling ev_select.c, you |
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can try forcing the use of the system fd_set here. |
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|
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EOF |
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|
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if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) { |
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$DEFINE .= " -DEV_SELECT_USE_FD_SET"; |
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} |
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} |
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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The second very portable backend is poll(2). It does not exist on windows |
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and various versions of Mac OS X (and on the other versions it simply |
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doesn't work), but works basically everywhere else. It is recommended to use |
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the default here unless you run into compile problems in ev_poll.c. |
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|
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EOF |
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|
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if (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/) { |
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$DEFINE .= " -DEV_USE_POLL"; |
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} |
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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EV by default uses select, which makes it hard to write efficient servers, |
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especially if the number of active conencitons is much lower than the open |
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ones. GNU/Linux systems have a more scalable method called "epoll", which |
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EV can use. For this to work, both your kernel and glibc have to support |
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epoll, but if you can compile it, the detection will be done at runtime, |
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and EV will safely fall back to using select when epoll isn't available. |
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If unsure, accept the default. |
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|
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EOF |
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|
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if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) { |
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$DEFINE .= " -DEV_USE_EPOLL"; |
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} |
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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Similarly to the epoll backend above, EV can take advantage of kqueue |
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on many BSD systems (it seems to be broken on Mac OS X though, but what |
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isn't broken on that shoddy platform... ah yes, the cash gushing by apple, |
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selling defective software works perfectly there). Support for kqueue will |
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be detected at runtime, with a safe fallback to other methods when it |
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cannot be used. |
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|
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EOF |
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|
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if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) { |
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$DEFINE .= " -DEV_USE_KQUEUE"; |
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} |
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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EV needs the functions pthread_atfork and clock_gettime. On most systems |
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you need some special libraries for this (such as -lrt and -lpthread). You |
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can specify additional libraries to provide these calls now, or accept the |
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default. |
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|
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EOF |
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|
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$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt"; |
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|
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|
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print <<EOF; |
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|
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|
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*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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|
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EOF |
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|
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my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); |
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|
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WriteMakefile( |
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dist => { |
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PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', |
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COMPRESS => 'gzip -9v', |
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SUFFIX => '.gz', |
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}, |
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depend => { |
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"EV.c" => "EV/EVAPI.h " |
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. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c " |
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. "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h", |
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}, |
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INC => "-Ilibev", |
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DEFINE => "$DEFINE", |
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NAME => "EV", |
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LIBS => [$LIBS], |
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PREREQ_PM => { |
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@anyevent, |
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}, |
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VERSION_FROM => "EV.pm", |
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PM => { |
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'EV.pm' => '$(INST_LIBDIR)/EV.pm', |
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'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm', |
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'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', |
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'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', |
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'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', |
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}, |
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); |
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|
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|