[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.49 by root, Sun Oct 22 13:33:28 2006 UTC vs.
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC

…		…
		1	/* solaris */
		2	#define _POSIX_PTHREAD_SEMANTICS 1
		3
		4	#if __linux && !defined(_GNU_SOURCE)
		5	# define _GNU_SOURCE
		6	#endif
		7
		8	/* just in case */
1	#define _REENTRANT 1	9	#define _REENTRANT 1
		10
2	#include <errno.h>	11	#include <errno.h>
3		12
4	#include "EXTERN.h"	13	#include "EXTERN.h"
5	#include "perl.h"	14	#include "perl.h"
6	#include "XSUB.h"	15	#include "XSUB.h"
39	/* used for struct dirent, AIX doesn't provide it */	48	/* used for struct dirent, AIX doesn't provide it */
40	#ifndef NAME_MAX	49	#ifndef NAME_MAX
41	# define NAME_MAX 4096	50	# define NAME_MAX 4096
42	#endif	51	#endif
43		52
		53	#ifndef PTHREAD_STACK_MIN
		54	/* care for broken platforms, e.g. windows */
		55	# define PTHREAD_STACK_MIN 16384
		56	#endif
		57
44	#if __ia64	58	#if __ia64
45	# define STACKSIZE 65536	59	# define STACKSIZE 65536
		60	#elif __i386 \|\| __x86_64 /* 16k is unreasonably high :( */
		61	# define STACKSIZE PTHREAD_STACK_MIN
46	#else	62	#else
47	# define STACKSIZE 8192	63	# define STACKSIZE 16384
48	#endif	64	#endif
		65
		66	/* buffer size for various temporary buffers */
		67	#define AIO_BUFSIZE 65536
		68
		69	#define dBUF \
		70	char *aio_buf; \
		71	LOCK (wrklock); \
		72	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
		73	UNLOCK (wrklock); \
		74	if (!aio_buf) \
		75	return -1;
49		76
50	enum {	77	enum {
51	REQ_QUIT,	78	REQ_QUIT,
52	REQ_OPEN, REQ_CLOSE,	79	REQ_OPEN, REQ_CLOSE,
53	REQ_READ, REQ_WRITE, REQ_READAHEAD,	80	REQ_READ, REQ_WRITE, REQ_READAHEAD,
…		…
55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	82	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
56	REQ_FSYNC, REQ_FDATASYNC,	83	REQ_FSYNC, REQ_FDATASYNC,
57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	84	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58	REQ_READDIR,	85	REQ_READDIR,
59	REQ_LINK, REQ_SYMLINK,	86	REQ_LINK, REQ_SYMLINK,
60	REQ_SLEEP,	87	REQ_GROUP, REQ_NOP,
61	REQ_GROUP,	88	REQ_BUSY,
62	};	89	};
63		90
64	#define AIO_REQ_KLASS "IO::AIO::REQ"	91	#define AIO_REQ_KLASS "IO::AIO::REQ"
65	#define AIO_GRP_KLASS "IO::AIO::GRP"	92	#define AIO_GRP_KLASS "IO::AIO::GRP"
66		93
67	typedef struct aio_cb	94	typedef struct aio_cb
68	{	95	{
69	struct aio_cb *volatile next;	96	struct aio_cb *volatile next;
70
71	struct aio_cb grp, grp_prev, grp_next, grp_first;
72
73	SV self; / the perl counterpart of this request, if any */
74		97
75	SV data, callback;	98	SV data, callback;
76	SV fh, fh2;	99	SV fh, fh2;
77	void dataptr, data2ptr;	100	void dataptr, data2ptr;
78	Stat_t *statdata;	101	Stat_t *statdata;
79	off_t offset;	102	off_t offset;
80	size_t length;	103	size_t length;
81	ssize_t result;	104	ssize_t result;
82		105
		106	STRLEN dataoffset;
83	int type;	107	int type;
84	int fd, fd2;	108	int fd, fd2;
85	int errorno;	109	int errorno;
86	STRLEN dataoffset;
87	mode_t mode; /* open */	110	mode_t mode; /* open */
		111
88	unsigned char cancelled;	112	unsigned char flags;
		113	unsigned char pri;
		114
		115	SV self; / the perl counterpart of this request, if any */
		116	struct aio_cb grp, grp_prev, grp_next, grp_first;
89	} aio_cb;	117	} aio_cb;
		118
		119	enum {
		120	FLAG_CANCELLED = 0x01,
		121	};
90		122
91	typedef aio_cb *aio_req;	123	typedef aio_cb *aio_req;
92	typedef aio_cb *aio_req_ornot;	124	typedef aio_cb *aio_req_ornot;
93		125
		126	enum {
		127	PRI_MIN = -4,
		128	PRI_MAX = 4,
		129
		130	DEFAULT_PRI = 0,
		131	PRI_BIAS = -PRI_MIN,
		132	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
		133	};
		134
		135	static int next_pri = DEFAULT_PRI + PRI_BIAS;
		136
94	static int started, wanted;	137	static unsigned int started, wanted;
95	static volatile int nreqs;	138	static volatile unsigned int nreqs;
96	static int max_outstanding = 1<<30;	139	static volatile unsigned int max_outstanding = 0xffffffff;
97	static int respipe [2];	140	static int respipe [2];
98		141
		142	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		143	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		144	#else
		145	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		146	#endif
		147
		148	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
		149	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
		150
		151	/* worker threads management */
		152	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
		153
		154	typedef struct worker {
		155	/* locked by wrklock */
		156	struct worker prev, next;
		157
		158	pthread_t tid;
		159
		160	/* locked by reslock, reqlock or wrklock */
		161	aio_req req; /* currently processed request */
		162	void *dbuf;
		163	DIR *dirp;
		164	} worker;
		165
		166	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
		167
		168	static void worker_clear (worker *wrk)
		169	{
		170	if (wrk->dirp)
		171	{
		172	closedir (wrk->dirp);
		173	wrk->dirp = 0;
		174	}
		175
		176	if (wrk->dbuf)
		177	{
		178	free (wrk->dbuf);
		179	wrk->dbuf = 0;
		180	}
		181	}
		182
		183	static void worker_free (worker *wrk)
		184	{
		185	wrk->next->prev = wrk->prev;
		186	wrk->prev->next = wrk->next;
		187
		188	free (wrk);
		189	}
		190
99	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	191	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
100	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	192	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
101	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	193	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102		194
103	static volatile aio_req reqs, reqe; /* queue start, queue end */	195	/*
104	static volatile aio_req ress, rese; /* queue start, queue end */	196	* a somewhat faster data structure might be nice, but
		197	* with 8 priorities this actually needs <20 insns
		198	* per shift, the most expensive operation.
		199	*/
		200	typedef struct {
		201	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
		202	int size;
		203	} reqq;
105		204
		205	static reqq req_queue;
		206	static reqq res_queue;
		207
		208	int reqq_push (reqq *q, aio_req req)
		209	{
		210	int pri = req->pri;
		211	req->next = 0;
		212
		213	if (q->qe[pri])
		214	{
		215	q->qe[pri]->next = req;
		216	q->qe[pri] = req;
		217	}
		218	else
		219	q->qe[pri] = q->qs[pri] = req;
		220
		221	return q->size++;
		222	}
		223
		224	aio_req reqq_shift (reqq *q)
		225	{
		226	int pri;
		227
		228	if (!q->size)
		229	return 0;
		230
		231	--q->size;
		232
		233	for (pri = NUM_PRI; pri--; )
		234	{
		235	aio_req req = q->qs[pri];
		236
		237	if (req)
		238	{
		239	if (!(q->qs[pri] = req->next))
		240	q->qe[pri] = 0;
		241
		242	return req;
		243	}
		244	}
		245
		246	abort ();
		247	}
		248
		249	static int poll_cb (int max);
		250	static void req_invoke (aio_req req);
106	static void req_free (aio_req req);	251	static void req_free (aio_req req);
		252	static void req_cancel (aio_req req);
107		253
108	/* must be called at most once */	254	/* must be called at most once */
109	static SV req_sv (aio_req req, const char klass)	255	static SV req_sv (aio_req req, const char klass)
110	{	256	{
111	if (!req->self)	257	if (!req->self)
…		…
117	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
118	}	264	}
119		265
120	static aio_req SvAIO_REQ (SV *sv)	266	static aio_req SvAIO_REQ (SV *sv)
121	{	267	{
		268	MAGIC *mg;
		269
122	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	270	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
123	croak ("object of class " AIO_REQ_KLASS " expected");	271	croak ("object of class " AIO_REQ_KLASS " expected");
124		272
125	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	273	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
126		274
127	return mg ? (aio_req)mg->mg_ptr : 0;	275	return mg ? (aio_req)mg->mg_ptr : 0;
128	}	276	}
129		277
130	static void aio_grp_feed (aio_req grp)	278	static void aio_grp_feed (aio_req grp)
131	{	279	{
132	while (grp->length < grp->fd2)	280	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
133	{	281	{
134	int old_len = grp->length;	282	int old_len = grp->length;
135		283
136	if (grp->fh2 && SvOK (grp->fh2))	284	if (grp->fh2 && SvOK (grp->fh2))
137	{	285	{
…		…
140	ENTER;	288	ENTER;
141	SAVETMPS;	289	SAVETMPS;
142	PUSHMARK (SP);	290	PUSHMARK (SP);
143	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	291	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
144	PUTBACK;	292	PUTBACK;
145	call_sv (grp->fh2, G_VOID \| G_EVAL);	293	call_sv (grp->fh2, G_VOID \| G_EVAL \| G_KEEPERR);
146	SPAGAIN;	294	SPAGAIN;
147	FREETMPS;	295	FREETMPS;
148	LEAVE;	296	LEAVE;
149	}	297	}
150		298
…		…
156	break;	304	break;
157	}	305	}
158	}	306	}
159	}	307	}
160		308
		309	static void aio_grp_dec (aio_req grp)
		310	{
		311	--grp->length;
		312
		313	/* call feeder, if applicable */
		314	aio_grp_feed (grp);
		315
		316	/* finish, if done */
		317	if (!grp->length && grp->fd)
		318	{
		319	req_invoke (grp);
		320	req_free (grp);
		321	}
		322	}
		323
161	static void poll_wait ()	324	static void poll_wait ()
162	{	325	{
163	if (nreqs && !ress)
164	{
165	fd_set rfd;	326	fd_set rfd;
		327
		328	while (nreqs)
		329	{
		330	int size;
		331	#if !(__i386 \|\| __x86_64) /* safe without sempahore on these archs */
		332	LOCK (reslock);
		333	#endif
		334	size = res_queue.size;
		335	#if !(__i386 \|\| __x86_64) /* safe without sempahore on these archs */
		336	UNLOCK (reslock);
		337	#endif
		338
		339	if (size)
		340	return;
		341
166	FD_ZERO(&rfd);	342	FD_ZERO(&rfd);
167	FD_SET(respipe [0], &rfd);	343	FD_SET(respipe [0], &rfd);
168		344
169	select (respipe [0] + 1, &rfd, 0, 0, 0);	345	select (respipe [0] + 1, &rfd, 0, 0, 0);
170	}	346	}
171	}	347	}
172		348
173	static void req_invoke (aio_req req)	349	static void req_invoke (aio_req req)
174	{	350	{
175	dSP;	351	dSP;
176	int errorno = errno;
177		352
178	if (req->cancelled \|\| !SvOK (req->callback))	353	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
179	return;	354	{
180
181	errno = req->errorno;	355	errno = req->errorno;
182		356
183	ENTER;	357	ENTER;
184	SAVETMPS;	358	SAVETMPS;
185	PUSHMARK (SP);	359	PUSHMARK (SP);
186	EXTEND (SP, 1);	360	EXTEND (SP, 1);
187		361
188	switch (req->type)	362	switch (req->type)
189	{
190	case REQ_READDIR:
191	{	363	{
192	SV *rv = &PL_sv_undef;	364	case REQ_READDIR:
193
194	if (req->result >= 0)
195	{	365	{
196	char *buf = req->data2ptr;	366	SV *rv = &PL_sv_undef;
197	AV *av = newAV ();
198		367
199	while (req->result)	368	if (req->result >= 0)
200	{	369	{
		370	int i;
		371	char *buf = req->data2ptr;
		372	AV *av = newAV ();
		373
		374	av_extend (av, req->result - 1);
		375
		376	for (i = 0; i < req->result; ++i)
		377	{
201	SV *sv = newSVpv (buf, 0);	378	SV *sv = newSVpv (buf, 0);
202		379
203	av_push (av, sv);	380	av_store (av, i, sv);
204	buf += SvCUR (sv) + 1;	381	buf += SvCUR (sv) + 1;
205	req->result--;	382	}
		383
		384	rv = sv_2mortal (newRV_noinc ((SV *)av));
206	}	385	}
207		386
208	rv = sv_2mortal (newRV_noinc ((SV *)av));	387	PUSHs (rv);
209	}	388	}
		389	break;
210		390
211	PUSHs (rv);	391	case REQ_OPEN:
		392	{
		393	/* convert fd to fh */
		394	SV *fh;
		395
		396	PUSHs (sv_2mortal (newSViv (req->result)));
		397	PUTBACK;
		398	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		399	SPAGAIN;
		400
		401	fh = SvREFCNT_inc (POPs);
		402
		403	PUSHMARK (SP);
		404	XPUSHs (sv_2mortal (fh));
		405	}
		406	break;
		407
		408	case REQ_GROUP:
		409	req->fd = 2; /* mark group as finished */
		410
		411	if (req->data)
		412	{
		413	int i;
		414	AV av = (AV )req->data;
		415
		416	EXTEND (SP, AvFILL (av) + 1);
		417	for (i = 0; i <= AvFILL (av); ++i)
		418	PUSHs (*av_fetch (av, i, 0));
		419	}
		420	break;
		421
		422	case REQ_NOP:
		423	case REQ_BUSY:
		424	break;
		425
		426	default:
		427	PUSHs (sv_2mortal (newSViv (req->result)));
		428	break;
212	}	429	}
213	break;
214		430
215	case REQ_OPEN:
216	{
217	/* convert fd to fh */
218	SV *fh;
219		431
220	PUSHs (sv_2mortal (newSViv (req->result)));
221	PUTBACK;	432	PUTBACK;
222	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
223	SPAGAIN;
224
225	fh = SvREFCNT_inc (POPs);
226
227	PUSHMARK (SP);
228	XPUSHs (sv_2mortal (fh));
229	}
230	break;
231
232	case REQ_GROUP:
233	req->fd = 2; /* mark group as finished */
234
235	if (req->data)
236	{
237	int i;
238	AV av = (AV )req->data;
239
240	EXTEND (SP, AvFILL (av) + 1);
241	for (i = 0; i <= AvFILL (av); ++i)
242	PUSHs (*av_fetch (av, i, 0));
243	}
244	break;
245
246	case REQ_SLEEP:
247	break;
248
249	default:
250	PUSHs (sv_2mortal (newSViv (req->result)));
251	break;
252	}
253
254
255	PUTBACK;
256	call_sv (req->callback, G_VOID \| G_EVAL);	433	call_sv (req->callback, G_VOID \| G_EVAL);
257	SPAGAIN;	434	SPAGAIN;
258		435
259	if (SvTRUE (ERRSV))
260	{
261	req_free (req);
262	croak (0);
263	}
264
265	FREETMPS;	436	FREETMPS;
266	LEAVE;	437	LEAVE;
		438	}
267		439
268	errno = errorno;
269	}
270
271	static void req_free (aio_req req)
272	{
273	if (req->grp)	440	if (req->grp)
274	{	441	{
275	aio_req grp = req->grp;	442	aio_req grp = req->grp;
276		443
277	/* unlink request */	444	/* unlink request */
…		…
279	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;	446	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
280		447
281	if (grp->grp_first == req)	448	if (grp->grp_first == req)
282	grp->grp_first = req->grp_next;	449	grp->grp_first = req->grp_next;
283		450
284	--grp->length;
285
286	/* call feeder, if applicable */
287	aio_grp_feed (grp);	451	aio_grp_dec (grp);
		452	}
288		453
289	/* finish, if done */	454	if (SvTRUE (ERRSV))
290	if (!grp->length && grp->fd)	455	{
291	{
292	req_invoke (grp);
293	req_free (grp);	456	req_free (req);
294	}	457	croak (0);
295	}	458	}
		459	}
296		460
		461	static void req_free (aio_req req)
		462	{
297	if (req->self)	463	if (req->self)
298	{	464	{
299	sv_unmagic (req->self, PERL_MAGIC_ext);	465	sv_unmagic (req->self, PERL_MAGIC_ext);
300	SvREFCNT_dec (req->self);	466	SvREFCNT_dec (req->self);
301	}	467	}
…		…
304	SvREFCNT_dec (req->fh);	470	SvREFCNT_dec (req->fh);
305	SvREFCNT_dec (req->fh2);	471	SvREFCNT_dec (req->fh2);
306	SvREFCNT_dec (req->callback);	472	SvREFCNT_dec (req->callback);
307	Safefree (req->statdata);	473	Safefree (req->statdata);
308		474
309	if (req->type == REQ_READDIR && req->result >= 0)	475	if (req->type == REQ_READDIR)
310	free (req->data2ptr);	476	free (req->data2ptr);
311		477
312	Safefree (req);	478	Safefree (req);
313	}	479	}
314		480
		481	static void req_cancel_subs (aio_req grp)
		482	{
		483	aio_req sub;
		484
		485	if (grp->type != REQ_GROUP)
		486	return;
		487
		488	SvREFCNT_dec (grp->fh2);
		489	grp->fh2 = 0;
		490
		491	for (sub = grp->grp_first; sub; sub = sub->grp_next)
		492	req_cancel (sub);
		493	}
		494
315	static void req_cancel (aio_req req)	495	static void req_cancel (aio_req req)
316	{	496	{
317	req->cancelled = 1;	497	req->flags \|= FLAG_CANCELLED;
318		498
319	if (req->type == REQ_GROUP)	499	req_cancel_subs (req);
320	{
321	aio_req sub;
322
323	for (sub = req->grp_first; sub; sub = sub->grp_next)
324	req_cancel (sub);
325	}
326	}	500	}
327		501
328	static int poll_cb ()	502	static int poll_cb (int max)
329	{	503	{
330	dSP;	504	dSP;
331	int count = 0;	505	int count = 0;
332	int do_croak = 0;	506	int do_croak = 0;
333	aio_req req;	507	aio_req req;
334		508
335	for (;;)	509	for (;;)
336	{	510	{
337	pthread_mutex_lock (&reslock);	511	while (max <= 0 \|\| count < max)
338	req = ress;
339
340	if (req)
341	{	512	{
342	ress = req->next;	513	LOCK (reslock);
		514	req = reqq_shift (&res_queue);
343		515
344	if (!ress)	516	if (req)
345	{	517	{
		518	if (!res_queue.size)
		519	{
346	/* read any signals sent by the worker threads */	520	/* read any signals sent by the worker threads */
347	char buf [32];	521	char buf [32];
348	while (read (respipe [0], buf, 32) == 32)	522	while (read (respipe [0], buf, 32) == 32)
		523	;
349	;	524	}
350
351	rese = 0;
352	}	525	}
		526
		527	UNLOCK (reslock);
		528
		529	if (!req)
		530	break;
		531
		532	--nreqs;
		533
		534	if (req->type == REQ_QUIT)
		535	--started;
		536	else if (req->type == REQ_GROUP && req->length)
		537	{
		538	req->fd = 1; /* mark request as delayed */
		539	continue;
		540	}
		541	else
		542	{
		543	if (req->type == REQ_READ)
		544	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
		545
		546	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		547	SvREADONLY_off (req->data);
		548
		549	if (req->statdata)
		550	{
		551	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
		552	PL_laststatval = req->result;
		553	PL_statcache = *(req->statdata);
		554	}
		555
		556	req_invoke (req);
		557
		558	count++;
		559	}
		560
		561	req_free (req);
353	}	562	}
354		563
355	pthread_mutex_unlock (&reslock);	564	if (nreqs <= max_outstanding)
356
357	if (!req)
358	break;	565	break;
359		566
360	nreqs--;	567	poll_wait ();
361		568
362	if (req->type == REQ_QUIT)	569	max = 0;
363	started--;
364	else if (req->type == REQ_GROUP && req->length)
365	{
366	req->fd = 1; /* mark request as delayed */
367	continue;
368	}
369	else
370	{
371	if (req->type == REQ_READ)
372	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
373
374	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
375	SvREADONLY_off (req->data);
376
377	if (req->statdata)
378	{
379	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
380	PL_laststatval = req->result;
381	PL_statcache = *(req->statdata);
382	}
383
384	req_invoke (req);
385
386	count++;
387	}
388
389	req_free (req);
390	}	570	}
391		571
392	return count;	572	return count;
393	}	573	}
394		574
395	static void aio_proc(void arg);	575	static void aio_proc(void arg);
396		576
397	static void start_thread (void)	577	static void start_thread (void)
398	{	578	{
399	sigset_t fullsigset, oldsigset;	579	sigset_t fullsigset, oldsigset;
400	pthread_t tid;
401	pthread_attr_t attr;	580	pthread_attr_t attr;
		581
		582	worker *wrk = calloc (1, sizeof (worker));
		583
		584	if (!wrk)
		585	croak ("unable to allocate worker thread data");
402		586
403	pthread_attr_init (&attr);	587	pthread_attr_init (&attr);
404	pthread_attr_setstacksize (&attr, STACKSIZE);	588	pthread_attr_setstacksize (&attr, STACKSIZE);
405	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);	589	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
406		590
407	sigfillset (&fullsigset);	591	sigfillset (&fullsigset);
		592
		593	LOCK (wrklock);
408	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);	594	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
409		595
410	if (pthread_create (&tid, &attr, aio_proc, 0) == 0)	596	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
		597	{
		598	wrk->prev = &wrk_first;
		599	wrk->next = wrk_first.next;
		600	wrk_first.next->prev = wrk;
		601	wrk_first.next = wrk;
411	started++;	602	++started;
		603	}
		604	else
		605	free (wrk);
412		606
413	sigprocmask (SIG_SETMASK, &oldsigset, 0);	607	sigprocmask (SIG_SETMASK, &oldsigset, 0);
		608	UNLOCK (wrklock);
414	}	609	}
415		610
416	static void req_send (aio_req req)	611	static void req_send (aio_req req)
417	{	612	{
418	while (started < wanted && nreqs >= started)	613	while (started < wanted && nreqs >= started)
419	start_thread ();	614	start_thread ();
420		615
421	nreqs++;	616	++nreqs;
422		617
423	pthread_mutex_lock (&reqlock);	618	LOCK (reqlock);
424		619	reqq_push (&req_queue, req);
425	req->next = 0;
426
427	if (reqe)
428	{
429	reqe->next = req;
430	reqe = req;
431	}
432	else
433	reqe = reqs = req;
434
435	pthread_cond_signal (&reqwait);	620	pthread_cond_signal (&reqwait);
436	pthread_mutex_unlock (&reqlock);	621	UNLOCK (reqlock);
437
438	if (nreqs > max_outstanding)
439	for (;;)
440	{
441	poll_cb ();
442
443	if (nreqs <= max_outstanding)
444	break;
445
446	poll_wait ();
447	}
448	}	622	}
449		623
450	static void end_thread (void)	624	static void end_thread (void)
451	{	625	{
452	aio_req req;	626	aio_req req;
		627
453	Newz (0, req, 1, aio_cb);	628	Newz (0, req, 1, aio_cb);
		629
454	req->type = REQ_QUIT;	630	req->type = REQ_QUIT;
		631	req->pri = PRI_MAX + PRI_BIAS;
455		632
456	req_send (req);	633	req_send (req);
457	}	634	}
458		635
459	static void min_parallel (int nthreads)	636	static void min_parallel (int nthreads)
…		…
476	}	653	}
477		654
478	while (started > wanted)	655	while (started > wanted)
479	{	656	{
480	poll_wait ();	657	poll_wait ();
481	poll_cb ();	658	poll_cb (0);
482	}	659	}
483	}	660	}
484		661
485	static void create_pipe ()	662	static void create_pipe ()
486	{	663	{
…		…
511	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	688	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
512	{	689	{
513	ssize_t res;	690	ssize_t res;
514	off_t ooffset;	691	off_t ooffset;
515		692
516	pthread_mutex_lock (&preadwritelock);	693	LOCK (preadwritelock);
517	ooffset = lseek (fd, 0, SEEK_CUR);	694	ooffset = lseek (fd, 0, SEEK_CUR);
518	lseek (fd, offset, SEEK_SET);	695	lseek (fd, offset, SEEK_SET);
519	res = read (fd, buf, count);	696	res = read (fd, buf, count);
520	lseek (fd, ooffset, SEEK_SET);	697	lseek (fd, ooffset, SEEK_SET);
521	pthread_mutex_unlock (&preadwritelock);	698	UNLOCK (preadwritelock);
522		699
523	return res;	700	return res;
524	}	701	}
525		702
526	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	703	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
527	{	704	{
528	ssize_t res;	705	ssize_t res;
529	off_t ooffset;	706	off_t ooffset;
530		707
531	pthread_mutex_lock (&preadwritelock);	708	LOCK (preadwritelock);
532	ooffset = lseek (fd, 0, SEEK_CUR);	709	ooffset = lseek (fd, 0, SEEK_CUR);
533	lseek (fd, offset, SEEK_SET);	710	lseek (fd, offset, SEEK_SET);
534	res = write (fd, buf, count);	711	res = write (fd, buf, count);
535	lseek (fd, offset, SEEK_SET);	712	lseek (fd, offset, SEEK_SET);
536	pthread_mutex_unlock (&preadwritelock);	713	UNLOCK (preadwritelock);
537		714
538	return res;	715	return res;
539	}	716	}
540	#endif	717	#endif
541		718
542	#if !HAVE_FDATASYNC	719	#if !HAVE_FDATASYNC
543	# define fdatasync fsync	720	# define fdatasync fsync
544	#endif	721	#endif
545		722
546	#if !HAVE_READAHEAD	723	#if !HAVE_READAHEAD
547	# define readahead aio_readahead	724	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
548		725
549	static ssize_t readahead (int fd, off_t offset, size_t count)	726	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
550	{	727	{
551	char readahead_buf[4096];	728	dBUF;
552		729
553	while (count > 0)	730	while (count > 0)
554	{	731	{
555	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);	732	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
556		733
557	pread (fd, readahead_buf, len, offset);	734	pread (fd, aio_buf, len, offset);
558	offset += len;	735	offset += len;
559	count -= len;	736	count -= len;
560	}	737	}
561		738
562	errno = 0;	739	errno = 0;
563	}	740	}
		741
564	#endif	742	#endif
565		743
566	#if !HAVE_READDIR_R	744	#if !HAVE_READDIR_R
567	# define readdir_r aio_readdir_r	745	# define readdir_r aio_readdir_r
568		746
…		…
571	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	749	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
572	{	750	{
573	struct dirent *e;	751	struct dirent *e;
574	int errorno;	752	int errorno;
575		753
576	pthread_mutex_lock (&readdirlock);	754	LOCK (readdirlock);
577		755
578	e = readdir (dirp);	756	e = readdir (dirp);
579	errorno = errno;	757	errorno = errno;
580		758
581	if (e)	759	if (e)
…		…
584	strcpy (ent->d_name, e->d_name);	762	strcpy (ent->d_name, e->d_name);
585	}	763	}
586	else	764	else
587	*res = 0;	765	*res = 0;
588		766
589	pthread_mutex_unlock (&readdirlock);	767	UNLOCK (readdirlock);
590		768
591	errno = errorno;	769	errno = errorno;
592	return e ? 0 : -1;	770	return e ? 0 : -1;
593	}	771	}
594	#endif	772	#endif
595		773
596	/* sendfile always needs emulation */	774	/* sendfile always needs emulation */
597	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)	775	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
598	{	776	{
599	ssize_t res;	777	ssize_t res;
600		778
601	if (!count)	779	if (!count)
602	return 0;	780	return 0;
…		…
613	{	791	{
614	off_t sbytes;	792	off_t sbytes;
615	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);	793	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
616		794
617	if (res < 0 && sbytes)	795	if (res < 0 && sbytes)
618	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */	796	/* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
619	res = sbytes;	797	res = sbytes;
620	}	798	}
621		799
622	# elif __hpux	800	# elif __hpux
623	res = sendfile (ofd, ifd, offset, count, 0, 0);	801	res = sendfile (ofd, ifd, offset, count, 0, 0);
…		…
651	#endif	829	#endif
652	)	830	)
653	)	831	)
654	{	832	{
655	/* emulate sendfile. this is a major pain in the ass */	833	/* emulate sendfile. this is a major pain in the ass */
656	char buf[4096];	834	dBUF;
		835
657	res = 0;	836	res = 0;
658		837
659	while (count)	838	while (count)
660	{	839	{
661	ssize_t cnt;	840	ssize_t cnt;
662		841
663	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);	842	cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
664		843
665	if (cnt <= 0)	844	if (cnt <= 0)
666	{	845	{
667	if (cnt && !res) res = -1;	846	if (cnt && !res) res = -1;
668	break;	847	break;
669	}	848	}
670		849
671	cnt = write (ofd, buf, cnt);	850	cnt = write (ofd, aio_buf, cnt);
672		851
673	if (cnt <= 0)	852	if (cnt <= 0)
674	{	853	{
675	if (cnt && !res) res = -1;	854	if (cnt && !res) res = -1;
676	break;	855	break;
…		…
684		863
685	return res;	864	return res;
686	}	865	}
687		866
688	/* read a full directory */	867	/* read a full directory */
689	static int scandir_ (const char path, void *namesp)	868	static void scandir_ (aio_req req, worker *self)
690	{	869	{
691	DIR *dirp = opendir (path);	870	DIR *dirp;
692	union	871	union
693	{	872	{
694	struct dirent d;	873	struct dirent d;
695	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	874	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
696	} u;	875	} *u;
697	struct dirent *entp;	876	struct dirent *entp;
698	char name, names;	877	char name, names;
699	int memlen = 4096;	878	int memlen = 4096;
700	int memofs = 0;	879	int memofs = 0;
701	int res = 0;	880	int res = 0;
702	int errorno;	881	int errorno;
703		882
704	if (!dirp)	883	LOCK (wrklock);
705	return -1;	884	self->dirp = dirp = opendir (req->dataptr);
706		885	self->dbuf = u = malloc (sizeof (*u));
707	names = malloc (memlen);	886	req->data2ptr = names = malloc (memlen);
		887	UNLOCK (wrklock);
708		888
		889	if (dirp && u && names)
709	for (;;)	890	for (;;)
710	{	891	{
		892	errno = 0;
711	errno = 0, readdir_r (dirp, &u.d, &entp);	893	readdir_r (dirp, &u->d, &entp);
712		894
713	if (!entp)	895	if (!entp)
714	break;	896	break;
715		897
716	name = entp->d_name;	898	name = entp->d_name;
717		899
718	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))	900	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
719	{	901	{
720	int len = strlen (name) + 1;	902	int len = strlen (name) + 1;
721		903
722	res++;	904	res++;
723		905
724	while (memofs + len > memlen)	906	while (memofs + len > memlen)
725	{	907	{
726	memlen *= 2;	908	memlen *= 2;
		909	LOCK (wrklock);
727	names = realloc (names, memlen);	910	req->data2ptr = names = realloc (names, memlen);
		911	UNLOCK (wrklock);
		912
728	if (!names)	913	if (!names)
729	break;	914	break;
730	}	915	}
731		916
732	memcpy (names + memofs, name, len);	917	memcpy (names + memofs, name, len);
733	memofs += len;	918	memofs += len;
734	}	919	}
735	}	920	}
736		921
737	errorno = errno;
738	closedir (dirp);
739
740	if (errorno)	922	if (errno)
741	{
742	free (names);
743	errno = errorno;
744	res = -1;	923	res = -1;
745	}	924
746		925	req->result = res;
747	namesp = (void )names;
748	return res;
749	}	926	}
750		927
751	/*****************************************************************************/	928	/*****************************************************************************/
752		929
753	static void aio_proc (void thr_arg)	930	static void aio_proc (void thr_arg)
754	{	931	{
755	aio_req req;	932	aio_req req;
756	int type;	933	int type;
		934	worker self = (worker )thr_arg;
757		935
758	do	936	do
759	{	937	{
760	pthread_mutex_lock (&reqlock);	938	LOCK (reqlock);
761		939
762	for (;;)	940	for (;;)
763	{	941	{
764	req = reqs;	942	self->req = req = reqq_shift (&req_queue);
765
766	if (reqs)
767	{
768	reqs = reqs->next;
769	if (!reqs) reqe = 0;
770	}
771		943
772	if (req)	944	if (req)
773	break;	945	break;
774		946
775	pthread_cond_wait (&reqwait, &reqlock);	947	pthread_cond_wait (&reqwait, &reqlock);
776	}	948	}
777		949
778	pthread_mutex_unlock (&reqlock);	950	UNLOCK (reqlock);
779		951
780	errno = 0; /* strictly unnecessary */	952	errno = 0; /* strictly unnecessary */
		953	type = req->type; /* remember type for QUIT check */
781		954
782	if (!req->cancelled)	955	if (!(req->flags & FLAG_CANCELLED))
783	switch (req->type)	956	switch (type)
784	{	957	{
785	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	958	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
786	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	959	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
787		960
788	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	961	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
789	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	962	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
790		963
791	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	964	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
792	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	965	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
793	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	966	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
794		967
…		…
800	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	973	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
801	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	974	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
802		975
803	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	976	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
804	case REQ_FSYNC: req->result = fsync (req->fd); break;	977	case REQ_FSYNC: req->result = fsync (req->fd); break;
805	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	978	case REQ_READDIR: scandir_ (req, self); break;
806		979
807	case REQ_SLEEP:	980	case REQ_BUSY:
808	{	981	{
809	struct timeval tv;	982	struct timeval tv;
810		983
811	tv.tv_sec = req->fd;	984	tv.tv_sec = req->fd;
812	tv.tv_usec = req->fd2;	985	tv.tv_usec = req->fd2;
813		986
814	req->result = select (0, 0, 0, 0, &tv);	987	req->result = select (0, 0, 0, 0, &tv);
815	}	988	}
816		989
		990	case REQ_GROUP:
		991	case REQ_NOP:
817	case REQ_QUIT:	992	case REQ_QUIT:
818	break;	993	break;
819		994
820	default:	995	default:
821	req->result = ENOSYS;	996	req->result = ENOSYS;
822	break;	997	break;
823	}	998	}
824		999
825	req->errorno = errno;	1000	req->errorno = errno;
826		1001
827	pthread_mutex_lock (&reslock);	1002	LOCK (reslock);
828		1003
829	req->next = 0;	1004	if (!reqq_push (&res_queue, req))
830
831	if (rese)
832	{
833	rese->next = req;
834	rese = req;
835	}
836	else
837	{
838	rese = ress = req;
839
840	/* write a dummy byte to the pipe so fh becomes ready */	1005	/* write a dummy byte to the pipe so fh becomes ready */
841	write (respipe [1], &respipe, 1);	1006	write (respipe [1], &respipe, 1);
842	}
843		1007
844	pthread_mutex_unlock (&reslock);	1008	self->req = 0;
		1009	worker_clear (self);
		1010
		1011	UNLOCK (reslock);
845	}	1012	}
846	while (type != REQ_QUIT);	1013	while (type != REQ_QUIT);
847		1014
		1015	LOCK (wrklock);
		1016	worker_free (self);
		1017	UNLOCK (wrklock);
		1018
848	return 0;	1019	return 0;
849	}	1020	}
850		1021
851	/*****************************************************************************/	1022	/*****************************************************************************/
852		1023
853	static void atfork_prepare (void)	1024	static void atfork_prepare (void)
854	{	1025	{
855	pthread_mutex_lock (&reqlock);	1026	LOCK (wrklock);
856	pthread_mutex_lock (&reslock);	1027	LOCK (reqlock);
		1028	LOCK (reslock);
857	#if !HAVE_PREADWRITE	1029	#if !HAVE_PREADWRITE
858	pthread_mutex_lock (&preadwritelock);	1030	LOCK (preadwritelock);
859	#endif	1031	#endif
860	#if !HAVE_READDIR_R	1032	#if !HAVE_READDIR_R
861	pthread_mutex_lock (&readdirlock);	1033	LOCK (readdirlock);
862	#endif	1034	#endif
863	}	1035	}
864		1036
865	static void atfork_parent (void)	1037	static void atfork_parent (void)
866	{	1038	{
867	#if !HAVE_READDIR_R	1039	#if !HAVE_READDIR_R
868	pthread_mutex_unlock (&readdirlock);	1040	UNLOCK (readdirlock);
869	#endif	1041	#endif
870	#if !HAVE_PREADWRITE	1042	#if !HAVE_PREADWRITE
871	pthread_mutex_unlock (&preadwritelock);	1043	UNLOCK (preadwritelock);
872	#endif	1044	#endif
873	pthread_mutex_unlock (&reslock);	1045	UNLOCK (reslock);
874	pthread_mutex_unlock (&reqlock);	1046	UNLOCK (reqlock);
		1047	UNLOCK (wrklock);
875	}	1048	}
876		1049
877	static void atfork_child (void)	1050	static void atfork_child (void)
878	{	1051	{
879	aio_req prv;	1052	aio_req prv;
880		1053
		1054	while (prv = reqq_shift (&req_queue))
		1055	req_free (prv);
		1056
		1057	while (prv = reqq_shift (&res_queue))
		1058	req_free (prv);
		1059
		1060	while (wrk_first.next != &wrk_first)
		1061	{
		1062	worker *wrk = wrk_first.next;
		1063
		1064	if (wrk->req)
		1065	req_free (wrk->req);
		1066
		1067	worker_clear (wrk);
		1068	worker_free (wrk);
		1069	}
		1070
881	started = 0;	1071	started = 0;
882		1072	nreqs = 0;
883	while (reqs)
884	{
885	prv = reqs;
886	reqs = prv->next;
887	req_free (prv);
888	}
889
890	reqs = reqe = 0;
891
892	while (ress)
893	{
894	prv = ress;
895	ress = prv->next;
896	req_free (prv);
897	}
898
899	ress = rese = 0;
900		1073
901	close (respipe [0]);	1074	close (respipe [0]);
902	close (respipe [1]);	1075	close (respipe [1]);
903	create_pipe ();	1076	create_pipe ();
904		1077
905	atfork_parent ();	1078	atfork_parent ();
906	}	1079	}
907		1080
908	#define dREQ \	1081	#define dREQ \
909	aio_req req; \	1082	aio_req req; \
		1083	int req_pri = next_pri; \
		1084	next_pri = DEFAULT_PRI + PRI_BIAS; \
910	\	1085	\
911	if (SvOK (callback) && !SvROK (callback)) \	1086	if (SvOK (callback) && !SvROK (callback)) \
912	croak ("callback must be undef or of reference type"); \	1087	croak ("callback must be undef or of reference type"); \
913	\	1088	\
914	Newz (0, req, 1, aio_cb); \	1089	Newz (0, req, 1, aio_cb); \
915	if (!req) \	1090	if (!req) \
916	croak ("out of memory during aio_req allocation"); \	1091	croak ("out of memory during aio_req allocation"); \
917	\	1092	\
918	req->callback = newSVsv (callback)	1093	req->callback = newSVsv (callback); \
		1094	req->pri = req_pri
919		1095
920	#define REQ_SEND \	1096	#define REQ_SEND \
921	req_send (req); \	1097	req_send (req); \
922	\	1098	\
923	if (GIMME_V != G_VOID) \	1099	if (GIMME_V != G_VOID) \
…		…
937	create_pipe ();	1113	create_pipe ();
938	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1114	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
939	}	1115	}
940		1116
941	void	1117	void
942	min_parallel (nthreads)	1118	min_parallel (int nthreads)
943	int nthreads
944	PROTOTYPE: $	1119	PROTOTYPE: $
945		1120
946	void	1121	void
947	max_parallel (nthreads)	1122	max_parallel (int nthreads)
948	int nthreads
949	PROTOTYPE: $	1123	PROTOTYPE: $
950		1124
951	int	1125	int
952	max_outstanding (nreqs)	1126	max_outstanding (int maxreqs)
953	int nreqs	1127	PROTOTYPE: $
954	PROTOTYPE: $
955	CODE:	1128	CODE:
956	RETVAL = max_outstanding;	1129	RETVAL = max_outstanding;
957	max_outstanding = nreqs;	1130	max_outstanding = maxreqs;
		1131	OUTPUT:
		1132	RETVAL
958		1133
959	void	1134	void
960	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1135	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
961	SV * pathname	1136	SV * pathname
962	int flags	1137	int flags
…		…
1177		1352
1178	REQ_SEND;	1353	REQ_SEND;
1179	}	1354	}
1180		1355
1181	void	1356	void
1182	aio_sleep (delay,callback=&PL_sv_undef)	1357	aio_busy (delay,callback=&PL_sv_undef)
1183	double delay	1358	double delay
1184	SV * callback	1359	SV * callback
1185	PPCODE:	1360	PPCODE:
1186	{	1361	{
1187	dREQ;	1362	dREQ;
1188		1363
1189	req->type = REQ_SLEEP;	1364	req->type = REQ_BUSY;
1190	req->fd = delay < 0. ? 0 : delay;	1365	req->fd = delay < 0. ? 0 : delay;
1191	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);	1366	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1192		1367
1193	REQ_SEND;	1368	REQ_SEND;
1194	}	1369	}
…		…
1198	SV * callback	1373	SV * callback
1199	PROTOTYPE: ;$	1374	PROTOTYPE: ;$
1200	PPCODE:	1375	PPCODE:
1201	{	1376	{
1202	dREQ;	1377	dREQ;
		1378
1203	req->type = REQ_GROUP;	1379	req->type = REQ_GROUP;
1204	req_send (req);	1380	req_send (req);
		1381
1205	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1382	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1206	}	1383	}
		1384
		1385	void
		1386	aio_nop (callback=&PL_sv_undef)
		1387	SV * callback
		1388	PPCODE:
		1389	{
		1390	dREQ;
		1391
		1392	req->type = REQ_NOP;
		1393
		1394	REQ_SEND;
		1395	}
		1396
		1397	void
		1398	aioreq_pri (int pri = DEFAULT_PRI)
		1399	CODE:
		1400	if (pri < PRI_MIN) pri = PRI_MIN;
		1401	if (pri > PRI_MAX) pri = PRI_MAX;
		1402	next_pri = pri + PRI_BIAS;
		1403
		1404	void
		1405	aioreq_nice (int nice = 0)
		1406	CODE:
		1407	nice = next_pri - nice;
		1408	if (nice < PRI_MIN) nice = PRI_MIN;
		1409	if (nice > PRI_MAX) nice = PRI_MAX;
		1410	next_pri = nice + PRI_BIAS;
1207		1411
1208	void	1412	void
1209	flush ()	1413	flush ()
1210	PROTOTYPE:	1414	PROTOTYPE:
1211	CODE:	1415	CODE:
1212	while (nreqs)	1416	while (nreqs)
1213	{	1417	{
1214	poll_wait ();	1418	poll_wait ();
1215	poll_cb ();	1419	poll_cb (0);
1216	}	1420	}
1217		1421
1218	void	1422	void
1219	poll()	1423	poll()
1220	PROTOTYPE:	1424	PROTOTYPE:
1221	CODE:	1425	CODE:
1222	if (nreqs)	1426	if (nreqs)
1223	{	1427	{
1224	poll_wait ();	1428	poll_wait ();
1225	poll_cb ();	1429	poll_cb (0);
1226	}	1430	}
1227		1431
1228	int	1432	int
1229	poll_fileno()	1433	poll_fileno()
1230	PROTOTYPE:	1434	PROTOTYPE:
…		…
1235		1439
1236	int	1440	int
1237	poll_cb(...)	1441	poll_cb(...)
1238	PROTOTYPE:	1442	PROTOTYPE:
1239	CODE:	1443	CODE:
1240	RETVAL = poll_cb ();	1444	RETVAL = poll_cb (0);
		1445	OUTPUT:
		1446	RETVAL
		1447
		1448	int
		1449	poll_some(int max = 0)
		1450	PROTOTYPE: $
		1451	CODE:
		1452	RETVAL = poll_cb (max);
1241	OUTPUT:	1453	OUTPUT:
1242	RETVAL	1454	RETVAL
1243		1455
1244	void	1456	void
1245	poll_wait()	1457	poll_wait()
…		…
1260		1472
1261	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1473	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1262		1474
1263	void	1475	void
1264	cancel (aio_req_ornot req)	1476	cancel (aio_req_ornot req)
1265	PROTOTYPE:
1266	CODE:	1477	CODE:
1267	req_cancel (req);	1478	req_cancel (req);
1268		1479
		1480	void
		1481	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1482	CODE:
		1483	SvREFCNT_dec (req->callback);
		1484	req->callback = newSVsv (callback);
		1485
1269	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1486	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1270		1487
1271	void	1488	void
1272	add (aio_req grp, ...)	1489	add (aio_req grp, ...)
1273	PPCODE:	1490	PPCODE:
1274	{	1491	{
1275	int i;	1492	int i;
		1493	aio_req req;
1276		1494
1277	if (grp->fd == 2)	1495	if (grp->fd == 2)
1278	croak ("cannot add requests to IO::AIO::GRP after the group finished");	1496	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1279		1497
1280	for (i = 1; i < items; ++i )	1498	for (i = 1; i < items; ++i )
1281	{	1499	{
1282	if (GIMME_V != G_VOID)	1500	if (GIMME_V != G_VOID)
1283	XPUSHs (sv_2mortal (newSVsv (ST (i))));	1501	XPUSHs (sv_2mortal (newSVsv (ST (i))));
1284		1502
1285	aio_req req = SvAIO_REQ (ST (i));	1503	req = SvAIO_REQ (ST (i));
1286		1504
1287	if (req)	1505	if (req)
1288	{	1506	{
1289	++grp->length;	1507	++grp->length;
1290	req->grp = grp;	1508	req->grp = grp;
…		…
1299	}	1517	}
1300	}	1518	}
1301	}	1519	}
1302		1520
1303	void	1521	void
		1522	cancel_subs (aio_req_ornot req)
		1523	CODE:
		1524	req_cancel_subs (req);
		1525
		1526	void
1304	result (aio_req grp, ...)	1527	result (aio_req grp, ...)
1305	CODE:	1528	CODE:
1306	{	1529	{
1307	int i;	1530	int i;
1308	AV *av = newAV ();	1531	AV *av = newAV ();
1309		1532
1310	for (i = 1; i < items; ++i )	1533	for (i = 1; i < items; ++i )
1311	av_push (av, newSVsv (ST (i)));	1534	av_push (av, newSVsv (ST (i)));
1312		1535
1313	SvREFCNT_dec (grp->data);	1536	SvREFCNT_dec (grp->data);
1314	grp->data = (SV *)av;	1537	grp->data = (SV *)av;
1315	}	1538	}
1316		1539
1317	void	1540	void
1318	feeder_limit (aio_req grp, int limit)	1541	limit (aio_req grp, int limit)
1319	CODE:	1542	CODE:
1320	grp->fd2 = limit;	1543	grp->fd2 = limit;
1321	aio_grp_feed (grp);	1544	aio_grp_feed (grp);
1322		1545
1323	void	1546	void
1324	set_feeder (aio_req grp, SV *callback=&PL_sv_undef)	1547	feed (aio_req grp, SV *callback=&PL_sv_undef)
1325	CODE:	1548	CODE:
1326	{	1549	{
1327	SvREFCNT_dec (grp->fh2);	1550	SvREFCNT_dec (grp->fh2);
1328	grp->fh2 = newSVsv (callback);	1551	grp->fh2 = newSVsv (callback);
1329		1552

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.49 by root, Sun Oct 22 13:33:28 2006 UTC vs. Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.49 by root, Sun Oct 22 13:33:28 2006 UTC vs.
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC