EV-ADNS/ADNS.xs

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

#include <poll.h>
#include <adns.h>

#include "EVAPI.h"

static HV *stash;
static adns_state ads;

struct ctx
{
  SV *self;
  adns_query query;
  SV *cb;
};

static void
process ()
{
  for (;;)
    {
      adns_query q;
      adns_answer *a;
      void *c;
      int r = adns_check (ads, &q, &a, &c);
      
      if (r)
        break;
    }
}

static struct pollfd *fds;
static int nfd;
static ev_io *iow;
static ev_timer tw;
static ev_prepare prepare_ev;
static struct timeval tv_now;

static void
update_now (EV_P)
{
  ev_tstamp t = ev_now ();

  tv_now.tv_sec  = (long)t;
  tv_now.tv_usec = (long)((t - (ev_tstamp)tv_now.tv_sec) * 1e-6);
}

static void
timer_cb (EV_P_ ev_timer *w, int revents)
{
}

static void
io_cb (EV_P_ ev_io *w, int revents)
{
  update_now (EV_A);

  if (revents & EV_READ ) adns_processreadable  (ads, w->fd, &tv_now);
  if (revents & EV_WRITE) adns_processwriteable (ads, w->fd, &tv_now);
}

// create io watchers for each fd and a timer before blocking
static void
prepare_cb (EV_P_ ev_prepare *w, int revents)
{
  int i;
  int timeout = 3600000;

  ev_timer_stop (EV_A_ &tw);

  for (i = 0; i < nfd; ++i)
    ev_io_stop (EV_A_ iow + i);

  process ();

  update_now (EV_A);

  while (adns_beforepoll (ads, fds, &nfd, &timeout, &tv_now))
    {
      free (iow); iow = malloc (nfd * sizeof (struct pollfd));
      free (fds); fds = malloc (nfd * sizeof (ev_io));
    }

  ev_timer_set (&tw, timeout * 1e-3, 0.);
  ev_timer_start (EV_A_ &tw);

  // create on ev_io per pollfd
  for (i = 0; i < nfd; ++i)
    {
      ev_io_init (iow + i, io_cb, fds [i].fd,
        ((fds [i].events & POLLIN ? EV_READ : 0)
         | (fds [i].events & POLLOUT ? EV_WRITE : 0)));

      ev_io_start (EV_A_ iow + i);
    }
}

MODULE = EV::ADNS                PACKAGE = EV::ADNS

PROTOTYPES: ENABLE

BOOT:
{
  stash = gv_stashpv ("EV::ADNS", 1);
#if 0

  static const struct {
    const char *name;
    IV iv;
  } *civ, const_iv[] = {
#   define const_iv(pfx, name) { # name, (IV) adns_ ## name },
    const_iv (if_none)
    const_iv (if_noenv)
    const_iv (if_noerrprint)
    const_iv (if_noserverwarn)
    const_iv (if_debug)
    const_iv (if_logpid)
    const_iv (if_noautosys)
    const_iv (if_eintr)
    const_iv (if_nosigpipe)
    const_iv (if_checkc_entex)
    const_iv (if_checkc_freq)

    const_iv (qf_none)
    const_iv (qf_search)
    const_iv (qf_usevc)
    const_iv (qf_owner)
    const_iv (qf_quoteok_query)
    const_iv (qf_quoteok_cname)
    const_iv (qf_quoteok_anshost)
    const_iv (qf_quotefail_cname)
    const_iv (qf_cname_loose)
    const_iv (qf_cname_forbid)

    const_iv (rrt_typemask)
    const_iv (_qtf_deref)
    const_iv (_qtf_mail822)
    const_iv (r_unknown)
    const_iv (r_none)
    const_iv (r_a)
    const_iv (r_ns_raw)
    const_iv (r_ns)
    const_iv (r_cname)
    const_iv (r_soa_raw)
    const_iv (r_soa)
    const_iv (r_ptr_raw)
    const_iv (r_ptr)
    const_iv (r_hinfo)
    const_iv (r_mx_raw)
    const_iv (r_mx)
    const_iv (r_txt)
    const_iv (r_rp_raw)
    const_iv (r_rp)
    const_iv (r_srv_raw)
    const_iv (r_srv)
    const_iv (r_addr)

    const_iv (s_ok)
    const_iv (s_nomemory)
    const_iv (s_unknownrrtype)
    const_iv (s_systemfail)
    const_iv (s_max_localfail)
    const_iv (s_timeout)
    const_iv (s_allservfail)
    const_iv (s_norecurse)
    const_iv (s_invalidresponse)
    const_iv (s_unknownformat)
    const_iv (s_max_remotefail)
    const_iv (s_rcodeservfail)
    const_iv (s_rcodeformaterror)
    const_iv (s_rcodenotimplemented)
    const_iv (s_rcoderefused)
    const_iv (s_rcodeunknown)
    const_iv (s_max_tempfail)
    const_iv (s_inconsistent)
    const_iv (s_prohibitedcname)
    const_iv (s_answerdomaininvalid)
    const_iv (s_answerdomaintoolong)
    const_iv (s_invaliddata)
    const_iv (s_max_misconfig)
    const_iv (s_querydomainwrong)
    const_iv (s_querydomaininvalid)
    const_iv (s_querydomaintoolong)
    const_iv (s_max_misquery)
    const_iv (s_nxdomain)
    const_iv (s_nodata)
    const_iv (s_max_permfail)
  };

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

  I_EV_API ("EV::ADNS");

  ev_prepare_init (&prepare_ev, prepare_cb); ev_prepare_start (EV_DEFAULT_ &prepare_ev);
  ev_unref ();

  ev_init (&tw, timer_cb);

  adns_init (&ads, adns_if_noenv | adns_if_noerrprint | adns_if_noserverwarn | adns_if_noautosys, 0);
}

void adns_submit (char *owner, int type, int flags, SV *cb)
        PPCODE:
{
        SV *csv = NEWSV (0, sizeof (struct ctx));
        struct ctx *c = (struct ctx *)SvPVX (csv);
        int r = adns_submit (ads, owner, type, flags, (void *)c, &c->query);

        if (r)
          {
            SvREFCNT_dec (csv);
            XSRETURN_EMPTY;
          }
        else
          {
            SvPOK_only (csv);
            SvCUR_set (csv, sizeof (struct ctx));
            c->self = csv;
            c->cb   = newSVsv (cb);

            if (GIMME_V != G_VOID)
              {
                csv = sv_2mortal (newRV_inc (csv));
                sv_bless (csv, stash);
                XPUSHs (csv);
              }
          }
}

void DESTROY (SV *req)
        CODE:
{
        struct ctx *c;

        if (!(SvROK (req) && SvOBJECT (SvRV (req))
              && (SvSTASH (SvRV (req)) == stash)))
          croak ("object is not of type EV::ADNS");
        
        c = (struct ctx *)SvPVX (SvRV (req));

        if (c->cb)
          {
            adns_cancel (c->query);
            SvREFCNT_dec (c->cb);
          }

        SvREFCNT_dec (c->self);
}


Revision:	1.2
Committed:	Sat Dec 1 14:14:00 2007 UTC (18 years, 9 months ago) by root
Branch:	MAIN
Changes since 1.1:	+49 -12 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 <poll.h>
6			#include <adns.h>
7
8			#include "EVAPI.h"
9
10	root	1.2	static HV *stash;
11	root	1.1	static adns_state ads;
12
13			struct ctx
14			{
15	root	1.2	SV *self;
16			adns_query query;
17	root	1.1	SV *cb;
18			};
19
20			static void
21			process ()
22			{
23			for (;;)
24			{
25			adns_query q;
26			adns_answer *a;
27			void *c;
28			int r = adns_check (ads, &q, &a, &c);
29
30			if (r)
31			break;
32			}
33			}
34
35			static struct pollfd *fds;
36			static int nfd;
37			static ev_io *iow;
38			static ev_timer tw;
39			static ev_prepare prepare_ev;
40	root	1.2	static struct timeval tv_now;
41	root	1.1
42			static void
43			update_now (EV_P)
44			{
45	root	1.2	ev_tstamp t = ev_now ();
46	root	1.1
47	root	1.2	tv_now.tv_sec = (long)t;
48			tv_now.tv_usec = (long)((t - (ev_tstamp)tv_now.tv_sec) * 1e-6);
49	root	1.1	}
50
51			static void
52			timer_cb (EV_P_ ev_timer *w, int revents)
53			{
54			}
55
56			static void
57			io_cb (EV_P_ ev_io *w, int revents)
58			{
59			update_now (EV_A);
60
61			if (revents & EV_READ ) adns_processreadable (ads, w->fd, &tv_now);
62			if (revents & EV_WRITE) adns_processwriteable (ads, w->fd, &tv_now);
63			}
64
65			// create io watchers for each fd and a timer before blocking
66			static void
67			prepare_cb (EV_P_ ev_prepare *w, int revents)
68			{
69			int i;
70			int timeout = 3600000;
71
72			ev_timer_stop (EV_A_ &tw);
73
74			for (i = 0; i < nfd; ++i)
75			ev_io_stop (EV_A_ iow + i);
76
77			process ();
78
79			update_now (EV_A);
80
81			while (adns_beforepoll (ads, fds, &nfd, &timeout, &tv_now))
82			{
83			free (iow); iow = malloc (nfd * sizeof (struct pollfd));
84			free (fds); fds = malloc (nfd * sizeof (ev_io));
85			}
86
87			ev_timer_set (&tw, timeout * 1e-3, 0.);
88			ev_timer_start (EV_A_ &tw);
89
90			// create on ev_io per pollfd
91			for (i = 0; i < nfd; ++i)
92			{
93			ev_io_init (iow + i, io_cb, fds [i].fd,
94			((fds [i].events & POLLIN ? EV_READ : 0)
95			\| (fds [i].events & POLLOUT ? EV_WRITE : 0)));
96
97			ev_io_start (EV_A_ iow + i);
98			}
99			}
100
101			MODULE = EV::ADNS PACKAGE = EV::ADNS
102
103			PROTOTYPES: ENABLE
104
105			BOOT:
106			{
107	root	1.2	stash = gv_stashpv ("EV::ADNS", 1);
108	root	1.1	#if 0
109
110			static const struct {
111			const char *name;
112			IV iv;
113			} *civ, const_iv[] = {
114			# define const_iv(pfx, name) { # name, (IV) adns_ ## name },
115			const_iv (if_none)
116			const_iv (if_noenv)
117			const_iv (if_noerrprint)
118			const_iv (if_noserverwarn)
119			const_iv (if_debug)
120			const_iv (if_logpid)
121			const_iv (if_noautosys)
122			const_iv (if_eintr)
123			const_iv (if_nosigpipe)
124			const_iv (if_checkc_entex)
125			const_iv (if_checkc_freq)
126
127			const_iv (qf_none)
128			const_iv (qf_search)
129			const_iv (qf_usevc)
130			const_iv (qf_owner)
131			const_iv (qf_quoteok_query)
132			const_iv (qf_quoteok_cname)
133			const_iv (qf_quoteok_anshost)
134			const_iv (qf_quotefail_cname)
135			const_iv (qf_cname_loose)
136			const_iv (qf_cname_forbid)
137
138			const_iv (rrt_typemask)
139			const_iv (_qtf_deref)
140			const_iv (_qtf_mail822)
141			const_iv (r_unknown)
142			const_iv (r_none)
143			const_iv (r_a)
144			const_iv (r_ns_raw)
145			const_iv (r_ns)
146			const_iv (r_cname)
147			const_iv (r_soa_raw)
148			const_iv (r_soa)
149			const_iv (r_ptr_raw)
150			const_iv (r_ptr)
151			const_iv (r_hinfo)
152			const_iv (r_mx_raw)
153			const_iv (r_mx)
154			const_iv (r_txt)
155			const_iv (r_rp_raw)
156			const_iv (r_rp)
157			const_iv (r_srv_raw)
158			const_iv (r_srv)
159			const_iv (r_addr)
160
161			const_iv (s_ok)
162			const_iv (s_nomemory)
163			const_iv (s_unknownrrtype)
164			const_iv (s_systemfail)
165			const_iv (s_max_localfail)
166			const_iv (s_timeout)
167			const_iv (s_allservfail)
168			const_iv (s_norecurse)
169			const_iv (s_invalidresponse)
170			const_iv (s_unknownformat)
171			const_iv (s_max_remotefail)
172			const_iv (s_rcodeservfail)
173			const_iv (s_rcodeformaterror)
174			const_iv (s_rcodenotimplemented)
175			const_iv (s_rcoderefused)
176			const_iv (s_rcodeunknown)
177			const_iv (s_max_tempfail)
178			const_iv (s_inconsistent)
179			const_iv (s_prohibitedcname)
180			const_iv (s_answerdomaininvalid)
181			const_iv (s_answerdomaintoolong)
182			const_iv (s_invaliddata)
183			const_iv (s_max_misconfig)
184			const_iv (s_querydomainwrong)
185			const_iv (s_querydomaininvalid)
186			const_iv (s_querydomaintoolong)
187			const_iv (s_max_misquery)
188			const_iv (s_nxdomain)
189			const_iv (s_nodata)
190			const_iv (s_max_permfail)
191			};
192
193			for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
194			newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
195			#endif
196
197			I_EV_API ("EV::ADNS");
198
199			ev_prepare_init (&prepare_ev, prepare_cb); ev_prepare_start (EV_DEFAULT_ &prepare_ev);
200			ev_unref ();
201
202			ev_init (&tw, timer_cb);
203
204			adns_init (&ads, adns_if_noenv \| adns_if_noerrprint \| adns_if_noserverwarn \| adns_if_noautosys, 0);
205			}
206
207	root	1.2	void adns_submit (char owner, int type, int flags, SV cb)
208			PPCODE:
209	root	1.1	{
210	root	1.2	SV *csv = NEWSV (0, sizeof (struct ctx));
211			struct ctx c = (struct ctx )SvPVX (csv);
212			int r = adns_submit (ads, owner, type, flags, (void *)c, &c->query);
213	root	1.1
214			if (r)
215			{
216	root	1.2	SvREFCNT_dec (csv);
217	root	1.1	XSRETURN_EMPTY;
218			}
219	root	1.2	else
220			{
221			SvPOK_only (csv);
222			SvCUR_set (csv, sizeof (struct ctx));
223			c->self = csv;
224			c->cb = newSVsv (cb);
225
226			if (GIMME_V != G_VOID)
227			{
228			csv = sv_2mortal (newRV_inc (csv));
229			sv_bless (csv, stash);
230			XPUSHs (csv);
231			}
232			}
233	root	1.1	}
234
235	root	1.2	void DESTROY (SV *req)
236			CODE:
237			{
238			struct ctx *c;
239
240			if (!(SvROK (req) && SvOBJECT (SvRV (req))
241			&& (SvSTASH (SvRV (req)) == stash)))
242			croak ("object is not of type EV::ADNS");
243
244			c = (struct ctx *)SvPVX (SvRV (req));
245
246			if (c->cb)
247			{
248			adns_cancel (c->query);
249			SvREFCNT_dec (c->cb);
250			}
251
252			SvREFCNT_dec (c->self);
253			}
254
255
256	root	1.1
257