EV/EV.xs

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include <math.h>
#include <netinet/in.h>

#include <sys/time.h>
#include <time.h>
#include <event.h>
#include <evdns.h>

/* workaround for evhttp.h requiring obscure bsd headers */
#ifndef TAILQ_ENTRY
#define TAILQ_ENTRY(type)                                               \
struct {                                                                \
        struct type *tqe_next;  /* next element */                      \
        struct type **tqe_prev; /* address of previous next element */  \
}
#endif /* !TAILQ_ENTRY */
#include <evhttp.h>

#define EV_NONE 0
#define EV_UNDEF -1

#define TIMEOUT_NONE HUGE_VAL

typedef struct event_base *Base;

static HV *stash_base, *stash_event;

static double tv_get (struct timeval *tv)
{
  return tv->tv_sec + tv->tv_usec * 1e-6;
}

static void tv_set (struct timeval *tv, double val)
{
  tv->tv_sec  = (long)val;
  tv->tv_usec = (long)((val - (double)tv->tv_sec) * 1e6);

}

/////////////////////////////////////////////////////////////////////////////
// Event

typedef struct ev {
  struct event ev;
  SV *cb, *fh;
  SV *self; /* contains this struct */
  double timeout;
  double interval;
  unsigned char active;
  unsigned char abstime;
} *Event;

static double
e_now ()
{
  struct timeval tv;
  gettimeofday (&tv, 0);

  return tv_get (&tv);
}

static void e_cb (int fd, short events, void *arg);

static int sv_fileno (SV *fh)
{
  SvGETMAGIC (fh);

  if (SvROK (fh))
    fh = SvRV (fh);

  if (SvTYPE (fh) == SVt_PVGV)
    return PerlIO_fileno (IoIFP (sv_2io (fh)));

  if (SvIOK (fh))
    return SvIV (fh);

  return -1;
}

static Event
e_new (SV *fh, short events, SV *cb)
{
  int fd = sv_fileno (fh);
  Event ev;
  SV *self = NEWSV (0, sizeof (struct ev));
  SvPOK_only (self);
  SvCUR_set (self, sizeof (struct ev));

  ev = (Event)SvPVX (self);

  ev->fh       = newSVsv (fh);
  ev->cb       = newSVsv (cb);
  ev->self     = self;
  ev->timeout  = TIMEOUT_NONE;
  ev->interval = 0.;
  ev->abstime  = 0;
  ev->active   = 0;

  event_set (&ev->ev, fd, events, e_cb, (void *)ev);

  return ev;
}

static struct timeval *
e_tv (Event ev)
{
  static struct timeval tv;
  double to = ev->timeout;

  if (to == TIMEOUT_NONE)
    return 0;

  if (ev->abstime)
    {
      double now = e_now ();

      if (now > to && ev->interval)
        ev->timeout = (to += ceil ((now - to) / ev->interval) * ev->interval);

      to -= now;
    }
  else if (to < 0.)
    to = 0.;

  tv_set (&tv, to);

  return &tv;
}

static SV *e_self (Event ev)
{
  SV *rv;

  if (SvOBJECT (ev->self))
    rv = newRV_inc (ev->self);
  else
    {
      rv = newRV_noinc (ev->self);
      sv_bless (rv, stash_event);
      SvREADONLY_on (ev->self);
    }

  return rv;
}

static int
e_start (Event ev)
{
  if (ev->active) event_del (&ev->ev);
  ev->active = 1;
  return event_add (&ev->ev, e_tv (ev));
}

static int e_stop (Event ev)
{
  return ev->active
    ? (ev->active = 0), event_del (&ev->ev)
    : 0;
}

static void
e_cb (int fd, short events, void *arg)
{
  struct ev *ev = (struct ev*)arg;
  dSP;

  ENTER;
  SAVETMPS;

  if (!(ev->ev.ev_events & EV_PERSIST))
    ev->active = 0;

  PUSHMARK (SP);
  EXTEND (SP, 2);
  PUSHs (sv_2mortal (e_self (ev)));
  PUSHs (sv_2mortal (newSViv (events)));
  PUTBACK;
  call_sv (ev->cb, G_DISCARD | G_VOID | G_EVAL);
  /*TODO: if err, call some logging function */

  if (ev->interval && !ev->active)
    e_start (ev);

  FREETMPS;
  LEAVE;
}

/////////////////////////////////////////////////////////////////////////////
// DNS

static void
dns_cb (int result, char type, int count, int ttl, void *addresses, void *arg)
{
  dSP;
  SV *cb = (SV *)arg;

  ENTER;
  SAVETMPS;
  PUSHMARK (SP);
  EXTEND (SP, count + 3);
  PUSHs (sv_2mortal (newSViv (result)));

  if (result == DNS_ERR_NONE && ttl >= 0)
    {
      int i;

      PUSHs (sv_2mortal (newSViv (type)));
      PUSHs (sv_2mortal (newSViv (ttl)));

      for (i = 0; i < count; ++i)
        switch (type)
          {
            case DNS_IPv6_AAAA:
              PUSHs (sv_2mortal (newSVpvn (i * 16 + (char *)addresses, 16)));
              break;
            case DNS_IPv4_A:
              PUSHs (sv_2mortal (newSVpvn (i *  4 + (char *)addresses,  4)));
              break;
            case DNS_PTR:
              PUSHs (sv_2mortal (newSVpv (*(char **)addresses, 0)));
              break;
          }
    }

  PUTBACK;
  call_sv (sv_2mortal (cb), G_DISCARD | G_VOID | G_EVAL);

  FREETMPS;
  LEAVE;
}

/////////////////////////////////////////////////////////////////////////////
// XS interface functions

MODULE = EV             PACKAGE = EV            PREFIX = event_

BOOT:
{
  HV *stash = gv_stashpv ("EV", 1);

  static const struct {
    const char *name;
    IV iv;
  } *civ, const_iv[] = {
#   define const_iv(pfx, name) { # name, (IV) pfx ## name },
    const_iv (EV_, NONE)
    const_iv (EV_, TIMEOUT)
    const_iv (EV_, READ)
    const_iv (EV_, WRITE)
    const_iv (EV_, SIGNAL)
    const_iv (EV_, PERSIST)
    const_iv (EV, LOOP_ONCE)
    const_iv (EV, LOOP_NONBLOCK)
    const_iv (EV, BUFFER_READ)
    const_iv (EV, BUFFER_WRITE)
    const_iv (EV, BUFFER_EOF)
    const_iv (EV, BUFFER_ERROR)
    const_iv (EV, BUFFER_TIMEOUT)
  };

  for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
    newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));

  stash_base  = gv_stashpv ("EV::Base" , 1);
  stash_event = gv_stashpv ("EV::Event", 1);
}

double now ()
        CODE:
        RETVAL = e_now ();
        OUTPUT:
        RETVAL

const char *version ()
        ALIAS:
        method = 1
        CODE:
        RETVAL = ix ? event_get_method () : event_get_version ();
        OUTPUT:
        RETVAL

Base event_init ()

int event_priority_init (int npri)

int event_dispatch ()

int event_loop (int flags = 0)

int event_loopexit (double after = 0)
        CODE:
{
        struct timeval tv;
        tv_set (&tv, after);
        event_loopexit (&tv);
}

Event event (SV *cb)
        CODE:
        RETVAL = e_new (NEWSV (0, 0), 0, cb);
        OUTPUT:
        RETVAL

Event io (SV *fh, short events, SV *cb)
        ALIAS:
        io_ns = 1
        CODE:
        RETVAL = e_new (fh, events, cb);
        if (!ix) e_start (RETVAL);
        OUTPUT:
        RETVAL

Event timer (double after, int repeat, SV *cb)
        ALIAS:
        timer_ns = 1
        CODE:
        RETVAL = e_new (NEWSV (0, 0), 0, cb);
        RETVAL->timeout  = after;
        RETVAL->interval = repeat;
        if (!ix) e_start (RETVAL);
        OUTPUT:
        RETVAL

Event timer_abs (double at, double interval, SV *cb)
        ALIAS:
        timer_abs_ns = 1
        CODE:
        RETVAL = e_new (NEWSV (0, 0), 0, cb);
        RETVAL->timeout  = at;
        RETVAL->interval = interval;
        RETVAL->abstime  = 1;
        if (!ix) e_start (RETVAL);
        OUTPUT:
        RETVAL

Event signal (SV *signal, SV *cb)
        ALIAS:
        signal_ns = 1
        CODE:
        RETVAL = e_new (signal, EV_SIGNAL | EV_PERSIST, cb);
        if (!ix) e_start (RETVAL);
        OUTPUT:
        RETVAL

PROTOTYPES: DISABLE


MODULE = EV             PACKAGE = EV::Base      PREFIX = event_base_

Base new ()
        CODE:
        RETVAL = event_init ();
        OUTPUT:
        RETVAL

int event_base_dispatch (Base base)

int event_base_loop (Base base, int flags = 0)

int event_base_loopexit (Base base, double after)
        CODE:
{
        struct timeval tv;
        tv.tv_sec  = (long)after;
        tv.tv_usec = (long)(after - tv.tv_sec) * 1e6;
        event_base_loopexit (base, &tv);
}

int event_base_priority_init (Base base, int npri)

void event_base_set (Base base, Event ev)
        C_ARGS: base, &ev->ev

void DESTROY (Base base)
        CODE:
        /*event_base_free (base);*/ /* causes too many problems */


MODULE = EV             PACKAGE = EV::Event     PREFIX = event_

int event_priority_set (Event ev, int pri)
        C_ARGS: &ev->ev, pri

int event_add (Event ev, double timeout = TIMEOUT_NONE)
        CODE:
        ev->timeout = timeout;
        ev->abstime = 0;
        RETVAL = e_start (ev);
        OUTPUT:
        RETVAL

int event_start (Event ev)
        CODE:
        RETVAL = e_start (ev);
        OUTPUT:
        RETVAL

int event_del (Event ev)
        ALIAS:
        stop = 0
        CODE:
        RETVAL = e_stop (ev);
        OUTPUT:
        RETVAL

void DESTROY (Event ev)
        CODE:
        e_stop (ev);
        SvREFCNT_dec (ev->cb);
        SvREFCNT_dec (ev->fh);

SV *cb (Event ev, SV *new_cb = 0)
        CODE:
        RETVAL = newSVsv (ev->cb);
        if (items > 1)
          sv_setsv (ev->cb, new_cb);
        OUTPUT:
        RETVAL

SV *fh (Event ev, SV *new_fh = 0)
        ALIAS:
        signal = 0
        CODE:
        RETVAL = newSVsv (ev->fh);
        if (items > 1)
          {
            if (ev->active) event_del (&ev->ev);
            sv_setsv (ev->fh, new_fh);
            ev->ev.ev_fd = sv_fileno (ev->fh);
            if (ev->active) event_add (&ev->ev, e_tv (ev));
          }
        OUTPUT:
        RETVAL

short events (Event ev, short new_events = EV_UNDEF)
        CODE:
        RETVAL = ev->ev.ev_events;
        if (items > 1)
          {
            if (ev->active) event_del (&ev->ev);
            ev->ev.ev_events = new_events;
            if (ev->active) event_add (&ev->ev, e_tv (ev));
          }
        OUTPUT:
        RETVAL

double timeout (Event ev, double new_timeout = 0., int repeat = 0)
        CODE:
        RETVAL = ev->timeout;
        if (items > 1)
          {
            if (ev->active) event_del (&ev->ev);
            ev->timeout  = new_timeout;
            ev->interval = repeat;
            ev->abstime  = 0;
            if (ev->active) event_add (&ev->ev, e_tv (ev));
          }
        OUTPUT:
        RETVAL

void timeout_abs (Event ev, double at, double interval = 0.)
        CODE:
        if (ev->active) event_del (&ev->ev);
        ev->timeout  = at;
        ev->interval = interval;
        ev->abstime  = 1;
        if (ev->active) event_add (&ev->ev, e_tv (ev));


MODULE = EV             PACKAGE = EV::DNS       PREFIX = evdns_

BOOT:
{
  HV *stash = gv_stashpv ("EV::DNS", 1);

  static const struct {
    const char *name;
    IV iv;
  } *civ, const_iv[] = {
#   define const_iv(pfx, name) { # name, (IV) pfx ## name },

    const_iv (DNS_, ERR_NONE)
    const_iv (DNS_, ERR_FORMAT)
    const_iv (DNS_, ERR_SERVERFAILED)
    const_iv (DNS_, ERR_NOTEXIST)
    const_iv (DNS_, ERR_NOTIMPL)
    const_iv (DNS_, ERR_REFUSED)
    const_iv (DNS_, ERR_TRUNCATED)
    const_iv (DNS_, ERR_UNKNOWN)
    const_iv (DNS_, ERR_TIMEOUT)
    const_iv (DNS_, ERR_SHUTDOWN)
    const_iv (DNS_, IPv4_A)
    const_iv (DNS_, PTR)
    const_iv (DNS_, IPv6_AAAA)
    const_iv (DNS_, QUERY_NO_SEARCH)
    const_iv (DNS_, OPTION_SEARCH)
    const_iv (DNS_, OPTION_NAMESERVERS)
    const_iv (DNS_, OPTION_MISC)
    const_iv (DNS_, OPTIONS_ALL)
    const_iv (DNS_, NO_SEARCH)
  };

  for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
    newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
}

int evdns_init ()

void evdns_shutdown (int fail_requests = 1)

const char *evdns_err_to_string (int err)

int evdns_nameserver_add (U32 address)

int evdns_count_nameservers ()

int evdns_clear_nameservers_and_suspend ()

int evdns_resume ()

int evdns_nameserver_ip_add (char *ip_as_string)

int evdns_resolve_ipv4 (const char *name, int flags, SV *cb)
        C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb)

int evdns_resolve_ipv6 (const char *name, int flags, SV *cb)
        C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb)

int evdns_resolve_reverse (SV *addr, int flags, SV *cb)
        ALIAS:
        evdns_resolve_reverse_ipv6 = 1
        CODE:
{
        STRLEN len;
        char *data = SvPVbyte (addr, len);
        if (len != (ix ? 16 : 4))
          croak ("ipv4/ipv6 address to resolve must be given as 4/16 byte octet string");

        RETVAL = ix
          ? evdns_resolve_reverse_ipv6 ((struct in6_addr *)data, flags, dns_cb, (void *)SvREFCNT_inc (cb))
          : evdns_resolve_reverse      ((struct in_addr  *)data, flags, dns_cb, (void *)SvREFCNT_inc (cb));
}
        OUTPUT:
        RETVAL

int evdns_set_option (char *option, char *val, int flags)

int evdns_resolv_conf_parse (int flags, const char *filename)

#ifdef MS_WINDOWS

int evdns_config_windows_nameservers ()

#endif

void evdns_search_clear ()

void evdns_search_add (char *domain)

void evdns_search_ndots_set (int ndots)

Revision:	1.4
Committed:	Fri Oct 26 18:21:32 2007 UTC (16 years, 6 months ago) by root
Branch:	MAIN
Changes since 1.3:	+10 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#include "EXTERN.h"
2			#include "perl.h"
3			#include "XSUB.h"
4
5			#include <math.h>
6			#include <netinet/in.h>
7
8			#include <sys/time.h>
9			#include <time.h>
10			#include <event.h>
11			#include <evdns.h>
12	root	1.4
13			/* workaround for evhttp.h requiring obscure bsd headers */
14			#ifndef TAILQ_ENTRY
15			#define TAILQ_ENTRY(type) \
16			struct { \
17			struct type tqe_next; / next element */ \
18			struct type *tqe_prev; / address of previous next element */ \
19			}
20			#endif /* !TAILQ_ENTRY */
21			#include <evhttp.h>
22	root	1.1
23			#define EV_NONE 0
24			#define EV_UNDEF -1
25
26			#define TIMEOUT_NONE HUGE_VAL
27
28			typedef struct event_base *Base;
29
30			static HV stash_base, stash_event;
31
32			static double tv_get (struct timeval *tv)
33			{
34			return tv->tv_sec + tv->tv_usec * 1e-6;
35			}
36
37			static void tv_set (struct timeval *tv, double val)
38			{
39			tv->tv_sec = (long)val;
40			tv->tv_usec = (long)((val - (double)tv->tv_sec) * 1e6);
41
42			}
43
44			/////////////////////////////////////////////////////////////////////////////
45			// Event
46
47			typedef struct ev {
48			struct event ev;
49			SV cb, fh;
50			SV self; / contains this struct */
51			double timeout;
52			double interval;
53			unsigned char active;
54			unsigned char abstime;
55			} *Event;
56
57			static double
58			e_now ()
59			{
60			struct timeval tv;
61			gettimeofday (&tv, 0);
62
63			return tv_get (&tv);
64			}
65
66			static void e_cb (int fd, short events, void *arg);
67
68			static int sv_fileno (SV *fh)
69			{
70	root	1.3	SvGETMAGIC (fh);
71	root	1.1
72	root	1.3	if (SvROK (fh))
73			fh = SvRV (fh);
74	root	1.1
75	root	1.3	if (SvTYPE (fh) == SVt_PVGV)
76			return PerlIO_fileno (IoIFP (sv_2io (fh)));
77	root	1.1
78	root	1.3	if (SvIOK (fh))
79			return SvIV (fh);
80	root	1.1
81			return -1;
82			}
83
84			static Event
85			e_new (SV fh, short events, SV cb)
86			{
87			int fd = sv_fileno (fh);
88			Event ev;
89			SV *self = NEWSV (0, sizeof (struct ev));
90			SvPOK_only (self);
91			SvCUR_set (self, sizeof (struct ev));
92
93			ev = (Event)SvPVX (self);
94
95			ev->fh = newSVsv (fh);
96			ev->cb = newSVsv (cb);
97			ev->self = self;
98			ev->timeout = TIMEOUT_NONE;
99			ev->interval = 0.;
100			ev->abstime = 0;
101			ev->active = 0;
102
103			event_set (&ev->ev, fd, events, e_cb, (void *)ev);
104
105			return ev;
106			}
107
108			static struct timeval *
109			e_tv (Event ev)
110			{
111			static struct timeval tv;
112			double to = ev->timeout;
113
114			if (to == TIMEOUT_NONE)
115			return 0;
116
117			if (ev->abstime)
118			{
119			double now = e_now ();
120
121			if (now > to && ev->interval)
122			ev->timeout = (to += ceil ((now - to) / ev->interval) * ev->interval);
123
124			to -= now;
125			}
126			else if (to < 0.)
127			to = 0.;
128
129			tv_set (&tv, to);
130
131			return &tv;
132			}
133
134			static SV *e_self (Event ev)
135			{
136			SV *rv;
137
138			if (SvOBJECT (ev->self))
139			rv = newRV_inc (ev->self);
140			else
141			{
142			rv = newRV_noinc (ev->self);
143			sv_bless (rv, stash_event);
144			SvREADONLY_on (ev->self);
145			}
146
147			return rv;
148			}
149
150			static int
151			e_start (Event ev)
152			{
153			if (ev->active) event_del (&ev->ev);
154			ev->active = 1;
155			return event_add (&ev->ev, e_tv (ev));
156			}
157
158			static int e_stop (Event ev)
159			{
160			return ev->active
161			? (ev->active = 0), event_del (&ev->ev)
162			: 0;
163			}
164
165			static void
166			e_cb (int fd, short events, void *arg)
167			{
168			struct ev ev = (struct ev)arg;
169			dSP;
170
171			ENTER;
172			SAVETMPS;
173
174			if (!(ev->ev.ev_events & EV_PERSIST))
175			ev->active = 0;
176
177			PUSHMARK (SP);
178			EXTEND (SP, 2);
179			PUSHs (sv_2mortal (e_self (ev)));
180			PUSHs (sv_2mortal (newSViv (events)));
181			PUTBACK;
182			call_sv (ev->cb, G_DISCARD \| G_VOID \| G_EVAL);
183			/TODO: if err, call some logging function /
184
185			if (ev->interval && !ev->active)
186			e_start (ev);
187
188			FREETMPS;
189			LEAVE;
190			}
191
192			/////////////////////////////////////////////////////////////////////////////
193			// DNS
194
195			static void
196			dns_cb (int result, char type, int count, int ttl, void addresses, void arg)
197			{
198			dSP;
199			SV cb = (SV )arg;
200
201			ENTER;
202			SAVETMPS;
203			PUSHMARK (SP);
204			EXTEND (SP, count + 3);
205			PUSHs (sv_2mortal (newSViv (result)));
206
207			if (result == DNS_ERR_NONE && ttl >= 0)
208			{
209			int i;
210
211			PUSHs (sv_2mortal (newSViv (type)));
212			PUSHs (sv_2mortal (newSViv (ttl)));
213
214			for (i = 0; i < count; ++i)
215			switch (type)
216			{
217			case DNS_IPv6_AAAA:
218			PUSHs (sv_2mortal (newSVpvn (i * 16 + (char *)addresses, 16)));
219			break;
220			case DNS_IPv4_A:
221			PUSHs (sv_2mortal (newSVpvn (i * 4 + (char *)addresses, 4)));
222			break;
223			case DNS_PTR:
224			PUSHs (sv_2mortal (newSVpv ((char *)addresses, 0)));
225			break;
226			}
227			}
228
229			PUTBACK;
230			call_sv (sv_2mortal (cb), G_DISCARD \| G_VOID \| G_EVAL);
231
232			FREETMPS;
233			LEAVE;
234			}
235
236			/////////////////////////////////////////////////////////////////////////////
237			// XS interface functions
238
239			MODULE = EV PACKAGE = EV PREFIX = event_
240
241			BOOT:
242			{
243			HV *stash = gv_stashpv ("EV", 1);
244
245			static const struct {
246			const char *name;
247			IV iv;
248			} *civ, const_iv[] = {
249			# define const_iv(pfx, name) { # name, (IV) pfx ## name },
250			const_iv (EV_, NONE)
251			const_iv (EV_, TIMEOUT)
252			const_iv (EV_, READ)
253			const_iv (EV_, WRITE)
254			const_iv (EV_, SIGNAL)
255			const_iv (EV_, PERSIST)
256			const_iv (EV, LOOP_ONCE)
257			const_iv (EV, LOOP_NONBLOCK)
258			const_iv (EV, BUFFER_READ)
259			const_iv (EV, BUFFER_WRITE)
260			const_iv (EV, BUFFER_EOF)
261			const_iv (EV, BUFFER_ERROR)
262			const_iv (EV, BUFFER_TIMEOUT)
263			};
264
265			for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
266			newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
267
268			stash_base = gv_stashpv ("EV::Base" , 1);
269			stash_event = gv_stashpv ("EV::Event", 1);
270			}
271
272			double now ()
273			CODE:
274			RETVAL = e_now ();
275			OUTPUT:
276			RETVAL
277
278			const char *version ()
279			ALIAS:
280			method = 1
281			CODE:
282			RETVAL = ix ? event_get_method () : event_get_version ();
283			OUTPUT:
284			RETVAL
285
286			Base event_init ()
287
288			int event_priority_init (int npri)
289
290			int event_dispatch ()
291
292			int event_loop (int flags = 0)
293
294	root	1.3	int event_loopexit (double after = 0)
295	root	1.1	CODE:
296			{
297			struct timeval tv;
298			tv_set (&tv, after);
299			event_loopexit (&tv);
300			}
301
302			Event event (SV *cb)
303			CODE:
304	root	1.3	RETVAL = e_new (NEWSV (0, 0), 0, cb);
305	root	1.1	OUTPUT:
306			RETVAL
307
308			Event io (SV fh, short events, SV cb)
309			ALIAS:
310			io_ns = 1
311			CODE:
312			RETVAL = e_new (fh, events, cb);
313			if (!ix) e_start (RETVAL);
314			OUTPUT:
315			RETVAL
316
317			Event timer (double after, int repeat, SV *cb)
318			ALIAS:
319			timer_ns = 1
320			CODE:
321	root	1.3	RETVAL = e_new (NEWSV (0, 0), 0, cb);
322	root	1.1	RETVAL->timeout = after;
323			RETVAL->interval = repeat;
324			if (!ix) e_start (RETVAL);
325			OUTPUT:
326			RETVAL
327
328			Event timer_abs (double at, double interval, SV *cb)
329			ALIAS:
330			timer_abs_ns = 1
331			CODE:
332	root	1.3	RETVAL = e_new (NEWSV (0, 0), 0, cb);
333	root	1.1	RETVAL->timeout = at;
334			RETVAL->interval = interval;
335			RETVAL->abstime = 1;
336			if (!ix) e_start (RETVAL);
337			OUTPUT:
338			RETVAL
339
340			Event signal (SV signal, SV cb)
341			ALIAS:
342			signal_ns = 1
343			CODE:
344			RETVAL = e_new (signal, EV_SIGNAL \| EV_PERSIST, cb);
345			if (!ix) e_start (RETVAL);
346			OUTPUT:
347			RETVAL
348
349			PROTOTYPES: DISABLE
350
351
352			MODULE = EV PACKAGE = EV::Base PREFIX = event_base_
353
354			Base new ()
355			CODE:
356			RETVAL = event_init ();
357			OUTPUT:
358			RETVAL
359
360			int event_base_dispatch (Base base)
361
362			int event_base_loop (Base base, int flags = 0)
363
364			int event_base_loopexit (Base base, double after)
365			CODE:
366			{
367			struct timeval tv;
368			tv.tv_sec = (long)after;
369			tv.tv_usec = (long)(after - tv.tv_sec) * 1e6;
370			event_base_loopexit (base, &tv);
371			}
372
373			int event_base_priority_init (Base base, int npri)
374
375			void event_base_set (Base base, Event ev)
376			C_ARGS: base, &ev->ev
377
378			void DESTROY (Base base)
379			CODE:
380			/event_base_free (base);/ /* causes too many problems */
381
382
383			MODULE = EV PACKAGE = EV::Event PREFIX = event_
384
385			int event_priority_set (Event ev, int pri)
386			C_ARGS: &ev->ev, pri
387
388			int event_add (Event ev, double timeout = TIMEOUT_NONE)
389			CODE:
390			ev->timeout = timeout;
391			ev->abstime = 0;
392			RETVAL = e_start (ev);
393			OUTPUT:
394			RETVAL
395
396			int event_start (Event ev)
397			CODE:
398			RETVAL = e_start (ev);
399			OUTPUT:
400			RETVAL
401
402			int event_del (Event ev)
403			ALIAS:
404			stop = 0
405			CODE:
406			RETVAL = e_stop (ev);
407			OUTPUT:
408			RETVAL
409
410			void DESTROY (Event ev)
411			CODE:
412			e_stop (ev);
413			SvREFCNT_dec (ev->cb);
414			SvREFCNT_dec (ev->fh);
415
416	root	1.3	SV cb (Event ev, SV new_cb = 0)
417	root	1.1	CODE:
418	root	1.3	RETVAL = newSVsv (ev->cb);
419			if (items > 1)
420			sv_setsv (ev->cb, new_cb);
421			OUTPUT:
422			RETVAL
423	root	1.1
424			SV fh (Event ev, SV new_fh = 0)
425			ALIAS:
426			signal = 0
427			CODE:
428			RETVAL = newSVsv (ev->fh);
429			if (items > 1)
430			{
431			if (ev->active) event_del (&ev->ev);
432			sv_setsv (ev->fh, new_fh);
433	root	1.2	ev->ev.ev_fd = sv_fileno (ev->fh);
434	root	1.1	if (ev->active) event_add (&ev->ev, e_tv (ev));
435			}
436			OUTPUT:
437			RETVAL
438
439			short events (Event ev, short new_events = EV_UNDEF)
440			CODE:
441			RETVAL = ev->ev.ev_events;
442			if (items > 1)
443			{
444			if (ev->active) event_del (&ev->ev);
445			ev->ev.ev_events = new_events;
446			if (ev->active) event_add (&ev->ev, e_tv (ev));
447			}
448			OUTPUT:
449			RETVAL
450
451			double timeout (Event ev, double new_timeout = 0., int repeat = 0)
452			CODE:
453			RETVAL = ev->timeout;
454			if (items > 1)
455			{
456			if (ev->active) event_del (&ev->ev);
457			ev->timeout = new_timeout;
458			ev->interval = repeat;
459			ev->abstime = 0;
460			if (ev->active) event_add (&ev->ev, e_tv (ev));
461			}
462			OUTPUT:
463			RETVAL
464
465			void timeout_abs (Event ev, double at, double interval = 0.)
466			CODE:
467			if (ev->active) event_del (&ev->ev);
468			ev->timeout = at;
469			ev->interval = interval;
470			ev->abstime = 1;
471			if (ev->active) event_add (&ev->ev, e_tv (ev));
472
473
474			MODULE = EV PACKAGE = EV::DNS PREFIX = evdns_
475
476			BOOT:
477			{
478			HV *stash = gv_stashpv ("EV::DNS", 1);
479
480			static const struct {
481			const char *name;
482			IV iv;
483			} *civ, const_iv[] = {
484			# define const_iv(pfx, name) { # name, (IV) pfx ## name },
485
486			const_iv (DNS_, ERR_NONE)
487			const_iv (DNS_, ERR_FORMAT)
488			const_iv (DNS_, ERR_SERVERFAILED)
489			const_iv (DNS_, ERR_NOTEXIST)
490			const_iv (DNS_, ERR_NOTIMPL)
491			const_iv (DNS_, ERR_REFUSED)
492			const_iv (DNS_, ERR_TRUNCATED)
493			const_iv (DNS_, ERR_UNKNOWN)
494			const_iv (DNS_, ERR_TIMEOUT)
495			const_iv (DNS_, ERR_SHUTDOWN)
496			const_iv (DNS_, IPv4_A)
497			const_iv (DNS_, PTR)
498			const_iv (DNS_, IPv6_AAAA)
499			const_iv (DNS_, QUERY_NO_SEARCH)
500			const_iv (DNS_, OPTION_SEARCH)
501			const_iv (DNS_, OPTION_NAMESERVERS)
502			const_iv (DNS_, OPTION_MISC)
503			const_iv (DNS_, OPTIONS_ALL)
504			const_iv (DNS_, NO_SEARCH)
505			};
506
507			for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
508			newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
509			}
510
511			int evdns_init ()
512
513			void evdns_shutdown (int fail_requests = 1)
514
515			const char *evdns_err_to_string (int err)
516
517			int evdns_nameserver_add (U32 address)
518
519			int evdns_count_nameservers ()
520
521			int evdns_clear_nameservers_and_suspend ()
522
523			int evdns_resume ()
524
525			int evdns_nameserver_ip_add (char *ip_as_string)
526
527			int evdns_resolve_ipv4 (const char name, int flags, SV cb)
528			C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb)
529
530			int evdns_resolve_ipv6 (const char name, int flags, SV cb)
531			C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb)
532
533			int evdns_resolve_reverse (SV addr, int flags, SV cb)
534			ALIAS:
535			evdns_resolve_reverse_ipv6 = 1
536			CODE:
537			{
538			STRLEN len;
539			char *data = SvPVbyte (addr, len);
540			if (len != (ix ? 16 : 4))
541			croak ("ipv4/ipv6 address to resolve must be given as 4/16 byte octet string");
542
543			RETVAL = ix
544			? evdns_resolve_reverse_ipv6 ((struct in6_addr )data, flags, dns_cb, (void )SvREFCNT_inc (cb))
545			: evdns_resolve_reverse ((struct in_addr )data, flags, dns_cb, (void )SvREFCNT_inc (cb));
546			}
547			OUTPUT:
548			RETVAL
549
550			int evdns_set_option (char option, char val, int flags)
551
552			int evdns_resolv_conf_parse (int flags, const char *filename)
553
554			#ifdef MS_WINDOWS
555
556			int evdns_config_windows_nameservers ()
557
558			#endif
559
560			void evdns_search_clear ()
561
562			void evdns_search_add (char *domain)
563
564			void evdns_search_ndots_set (int ndots)
565