Event::MakeMaker - MakeMaker glue for the C-level Event API This is an advanced feature of Event. For optimal performance, hook into Event at the C-level. You'll need to make changes to your "Makefile.PL" and add code to your "xs" / "c" file(s). When you hook in at the C-level you get a huge performance gain, but you also reduce the chances that your code will work unmodified with newer versions of "perl" or "Event". This may or may not be a problem. Just be aware, and set your expectations accordingly.

Makefile.PL
use Event::MakeMaker qw(event_args); # ... set up %args ... WriteMakefile(event_args(%args));

XS
#include "EventAPI.h" BOOT: I_EVENT_API("YourModule");

API (v21)
struct EventAPI { I32 Ver; /* EVENTS */ void (*queue )(pe_event *ev); void (*start )(pe_watcher *ev, int repeat); void (*now )(pe_watcher *ev); void (*stop )(pe_watcher *ev, int cancel_events); void (*cancel )(pe_watcher *ev); void (*suspend )(pe_watcher *ev); void (*resume )(pe_watcher *ev); /* All constructors optionally take a stash and template. Either or both can be NULL. The template should not be a reference. */ pe_idle *(*new_idle )(HV*, SV*); pe_timer *(*new_timer )(HV*, SV*); pe_io *(*new_io )(HV*, SV*); pe_var *(*new_var )(HV*, SV*); pe_signal *(*new_signal)(HV*, SV*); /* TIMEABLE */ void (*tstart)(pe_timeable *); void (*tstop)(pe_timeable *); /* HOOKS */ pe_qcallback *(*add_hook)(char *which, void *cb, void *ext_data); void (*cancel_hook)(pe_qcallback *qcb); /* STATS */ void (*install_stats)(pe_event_stats_vtbl *esvtbl); void (*collect_stats)(int yes); pe_ring *AllWatchers; /* TYPEMAP */ SV *(*watcher_2sv)(pe_watcher *wa); void *(*sv_2watcher)(SV *sv); SV *(*event_2sv)(pe_event *ev); void *(*sv_2event)(SV *sv); };

EXAMPLE
static pe_io *X11_ev=0; static void x_server_dispatch(void *ext_data) { ... } if (!X11_ev) { X11_ev = GEventAPI->new_io(0,0); X11_ev->poll = PE_R; sv_setpv(X11_ev->base.desc, "X::Server"); X11_ev->base.callback = (void*) x_server_dispatch; X11_ev->base.ext_data = <whatever>; X11_ev->base.prio = PE_PRIO_NORMAL; } X11_ev->fd = x_fd; GEventAPI->resume((pe_event*) X11_ev); GEventAPI->start((pe_event*) X11_ev, 0);

BUT I NEED A NEW TYPE OF WATCHER FOR MY INTERGALACTIC INFEROMETER
I'd prefer not to export the entire Event.h apparatus in favor of minimizing interdependencies. If you really, really need to create a new type of watcher send your problem analysis to the mailing list!