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>
/*include <evhttp.h>*/ /* does not compile */

#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)
{
  if (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)
        CODE:
{
        struct timeval tv;
        tv_set (&tv, after);
        event_loopexit (&tv);
}

Event event (SV *cb)
        CODE:
        RETVAL = e_new (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 (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 (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);

void cb (Event ev, SV *new_cb)
        CODE:
        sv_setsv (ev->cb, new_cb);

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