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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.72 by root, Tue Oct 24 17:22:17 2006 UTC vs.
Revision 1.155 by root, Fri Jul 17 00:56:54 2009 UTC

1	/* solaris */	1	#include "libeio/xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux
5	# define _GNU_SOURCE
6	#endif
7
8	#define _REENTRANT 1
9		2
10	#include <errno.h>	3	#include <errno.h>
11		4
12	#include "EXTERN.h"	5	#include "EXTERN.h"
13	#include "perl.h"	6	#include "perl.h"
14	#include "XSUB.h"	7	#include "XSUB.h"
15		8
16	#include "autoconf/config.h"	9	#include "schmorp.h"
17
18	#include <pthread.h>
19		10
20	#include <stddef.h>	11	#include <stddef.h>
		12	#include <stdlib.h>
21	#include <errno.h>	13	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/select.h>
24	#include <sys/types.h>	14	#include <sys/types.h>
25	#include <sys/stat.h>	15	#include <sys/stat.h>
26	#include <limits.h>	16	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	17	#include <fcntl.h>
29	#include <signal.h>
30	#include <sched.h>	18	#include <sched.h>
31		19
32	#if HAVE_SENDFILE	20	/* perl namespace pollution */
33	# if __linux	21	#undef VERSION
34	# include <sys/sendfile.h>	22
35	# elif __freebsd	23	#ifdef _WIN32
36	# include <sys/socket.h>	24
37	# include <sys/uio.h>	25	# define EIO_STRUCT_DIRENT Direntry_t
38	# elif __hpux	26	# undef malloc
39	# include <sys/socket.h>	27	# undef free
40	# elif __solaris /* not yet */	28
41	# include <sys/sendfile.h>	29	// perl overrides all those nice win32 functions
		30	# undef open
		31	# undef read
		32	# undef write
		33	# undef send
		34	# undef recv
		35	# undef stat
		36	# undef fstat
		37	# define lstat stat
		38	# undef truncate
		39	# undef ftruncate
		40	# undef open
		41	# undef close
		42	# undef unlink
		43	# undef rmdir
		44	# undef rename
		45	# undef lseek
		46
		47	# define chown(a,b,c) (errno = ENOSYS, -1)
		48	# define fchown(a,b,c) (errno = ENOSYS, -1)
		49	# define fchmod(a,b) (errno = ENOSYS, -1)
		50	# define symlink(a,b) (errno = ENOSYS, -1)
		51	# define readlink(a,b,c) (errno = ENOSYS, -1)
		52	# define mknod(a,b,c) (errno = ENOSYS, -1)
		53	# define truncate(a,b) (errno = ENOSYS, -1)
		54	# define ftruncate(fd,o) chsize ((fd), (o))
		55	# define fsync(fd) _commit (fd)
		56	# define opendir(fd) (errno = ENOSYS, 0)
		57	# define readdir(fd) (errno = ENOSYS, -1)
		58	# define closedir(fd) (errno = ENOSYS, -1)
		59	# define mkdir(a,b) mkdir (a)
		60
42	# else	61	#else
43	# error sendfile support requested but not available	62
44	# endif	63	# include <sys/time.h>
		64	# include <sys/select.h>
		65	# include <unistd.h>
		66	# include <utime.h>
		67	# include <signal.h>
		68	# define EIO_STRUCT_DIRENT struct dirent
		69
45	#endif	70	#endif
46		71
47	/* used for struct dirent, AIX doesn't provide it */	72	/* perl stupidly overrides readdir and maybe others */
48	#ifndef NAME_MAX	73	/* with thread-unsafe versions, imagine that :( */
49	# define NAME_MAX 4096	74	#undef readdir
		75	#undef opendir
		76	#undef closedir
		77
		78	#define EIO_STRUCT_STAT Stat_t
		79
		80	/* use NV for 32 bit perls as it allows larger offsets */
		81	#if IVSIZE >= 8
		82	# define VAL64 IV
		83	# define SvVAL64 SvIV
		84	# define newSVval64 newSViv
		85	#else
		86	# define VAL64 NV
		87	# define SvVAL64 SvNV
		88	# define newSVval64 newSVnv
50	#endif	89	#endif
51		90
52	#if __ia64	91	/*****************************************************************************/
53	# define STACKSIZE 65536	92
54	#elif __i386 || __x86_64 /* 16k is unreasonably high :( */	93	#if __GNUC__ >= 3
55	# define STACKSIZE PTHREAD_STACK_MIN	94	# define expect(expr,value) __builtin_expect ((expr),(value))
56	#else	95	#else
57	# define STACKSIZE 16384	96	# define expect(expr,value) (expr)
58	#endif	97	#endif
59		98
60	/* buffer size for various temporary buffers */	99	#define expect_false(expr) expect ((expr) != 0, 0)
61	#define AIO_BUFSIZE 65536	100	#define expect_true(expr) expect ((expr) != 0, 1)
62		101
63	#define dBUF \	102	/*****************************************************************************/
64	char *aio_buf; \
65	LOCK (wrklock); \
66	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
67	UNLOCK (wrklock); \
68	if (!aio_buf) \
69	return -1;
70		103
71	enum {	104	static HV *stash;
72	REQ_QUIT,	105	typedef SV SV8; /* byte-sv, used for argument-checking */
73	REQ_OPEN, REQ_CLOSE,	106	typedef int aio_rfd; /* read file desriptor */
74	REQ_READ, REQ_WRITE, REQ_READAHEAD,	107	typedef int aio_wfd; /* write file descriptor */
75	REQ_SENDFILE,
76	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
77	REQ_FSYNC, REQ_FDATASYNC,
78	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
79	REQ_READDIR,
80	REQ_LINK, REQ_SYMLINK,
81	REQ_GROUP, REQ_NOP,
82	REQ_BUSY,
83	};
84		108
85	#define AIO_REQ_KLASS "IO::AIO::REQ"	109	#define AIO_REQ_KLASS "IO::AIO::REQ"
86	#define AIO_GRP_KLASS "IO::AIO::GRP"	110	#define AIO_GRP_KLASS "IO::AIO::GRP"
87		111
88	typedef struct aio_cb	112	#define EIO_REQ_MEMBERS \
89	{
90	struct aio_cb *volatile next;
91
92	SV *data, *callback;	113	SV *callback; \
93	SV *fh, *fh2;	114	SV *sv1, *sv2; \
94	void *dataptr, *data2ptr;
95	Stat_t *statdata;
96	off_t offset;
97	size_t length;
98	ssize_t result;
99
100	STRLEN dataoffset;	115	STRLEN stroffset; \
101	int type;	116	SV *self;
102	int fd, fd2;
103	int errorno;
104	mode_t mode; /* open */
105		117
106	unsigned char flags;	118	#define EIO_NO_WRAPPERS 1
107	unsigned char pri;
108		119
109	SV *self; /* the perl counterpart of this request, if any */	120	#include "libeio/eio.h"
110	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	121
111	} aio_cb;	122	#ifndef POSIX_FADV_NORMAL
		123	# define POSIX_FADV_NORMAL 0
		124	# define NO_FADVISE 1
		125	#endif
		126
		127	#ifndef POSIX_FADV_SEQUENTIAL
		128	# define POSIX_FADV_SEQUENTIAL 0
		129	#endif
		130
		131	#ifndef POSIX_FADV_RANDOM
		132	# define POSIX_FADV_RANDOM 0
		133	#endif
		134
		135	#ifndef POSIX_FADV_NOREUSE
		136	# define POSIX_FADV_NOREUSE 0
		137	#endif
		138
		139	#ifndef POSIX_FADV_WILLNEED
		140	# define POSIX_FADV_WILLNEED 0
		141	#endif
		142
		143	#ifndef POSIX_FADV_DONTNEED
		144	# define POSIX_FADV_DONTNEED 0
		145	#endif
		146
		147	static int req_invoke (eio_req *req);
		148	#define EIO_FINISH(req) req_invoke (req)
		149	static void req_destroy (eio_req *grp);
		150	#define EIO_DESTROY(req) req_destroy (req)
112		151
113	enum {	152	enum {
114	FLAG_CANCELLED = 0x01,	153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
115	};	154	};
116		155
		156	#include "libeio/eio.c"
		157
117	typedef aio_cb *aio_req;	158	typedef eio_req *aio_req;
118	typedef aio_cb *aio_req_ornot;	159	typedef eio_req *aio_req_ornot;
119		160
120	enum {	161	static SV *on_next_submit;
121	PRI_MIN = -4,	162	static int next_pri = EIO_PRI_DEFAULT;
122	PRI_MAX = 4,
123
124	DEFAULT_PRI = 0,
125	PRI_BIAS = -PRI_MIN,
126	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
127	};
128
129	static int next_pri = DEFAULT_PRI + PRI_BIAS;
130
131	static int started, wanted;
132	static volatile int nreqs;
133	static int max_outstanding = 1<<30;	163	static int max_outstanding;
134	static int respipe [2];
135		164
136	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)	165	static s_epipe respipe;
137	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
138	#else
139	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
140	#endif
141		166
142	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
143	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
144
145	/* worker threasd management */
146	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
147
148	typedef struct worker {
149	/* locked by wrklock */
150	struct worker *prev, *next;
151
152	pthread_t tid;
153
154	/* locked by reslock, reqlock or wrklock */
155	aio_req req; /* currently processed request */
156	void *dbuf;
157	DIR *dirp;
158	} worker;
159
160	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
161
162	static void worker_clear (worker *wrk)
163	{
164	if (wrk->dirp)
165	{
166	closedir (wrk->dirp);
167	wrk->dirp = 0;
168	}
169
170	if (wrk->dbuf)
171	{
172	free (wrk->dbuf);
173	wrk->dbuf = 0;
174	}
175	}
176
177	static void worker_free (worker *wrk)
178	{
179	wrk->next->prev = wrk->prev;
180	wrk->prev->next = wrk->next;
181
182	free (wrk);
183	}
184
185	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
186	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
187	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
188
189	/*
190	* a somewhat faster data structure might be nice, but
191	* with 8 priorities this actually needs <20 insns
192	* per shift, the most expensive operation.
193	*/
194	typedef struct {
195	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
196	int size;
197	} reqq;
198
199	static reqq req_queue;
200	static reqq res_queue;
201
202	int reqq_push (reqq *q, aio_req req)
203	{
204	int pri = req->pri;
205	req->next = 0;
206
207	if (q->qe[pri])
208	{
209	q->qe[pri]->next = req;
210	q->qe[pri] = req;
211	}
212	else
213	q->qe[pri] = q->qs[pri] = req;
214
215	return q->size++;
216	}
217
218	aio_req reqq_shift (reqq *q)
219	{
220	int pri;
221
222	if (!q->size)
223	return 0;
224
225	--q->size;
226
227	for (pri = NUM_PRI; pri--; )
228	{
229	aio_req req = q->qs[pri];
230
231	if (req)
232	{
233	if (!(q->qs[pri] = req->next))
234	q->qe[pri] = 0;
235
236	return req;
237	}
238	}
239
240	abort ();
241	}
242
243	static void req_invoke (aio_req req);
244	static void req_free (aio_req req);	167	static void req_destroy (aio_req req);
245	static void req_cancel (aio_req req);	168	static void req_cancel (aio_req req);
		169
		170	static void want_poll (void)
		171	{
		172	/* write a dummy byte to the pipe so fh becomes ready */
		173	s_epipe_signal (&respipe);
		174	}
		175
		176	static void done_poll (void)
		177	{
		178	/* read any signals sent by the worker threads */
		179	s_epipe_drain (&respipe);
		180	}
246		181
247	/* must be called at most once */	182	/* must be called at most once */
248	static SV *req_sv (aio_req req, const char *klass)	183	static SV *req_sv (aio_req req, const char *klass)
249	{	184	{
250	if (!req->self)	185	if (!req->self)
…		…
268	return mg ? (aio_req)mg->mg_ptr : 0;	203	return mg ? (aio_req)mg->mg_ptr : 0;
269	}	204	}
270		205
271	static void aio_grp_feed (aio_req grp)	206	static void aio_grp_feed (aio_req grp)
272	{	207	{
273	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))	208	if (grp->sv2 && SvOK (grp->sv2))
274	{	209	{
275	int old_len = grp->length;
276
277	if (grp->fh2 && SvOK (grp->fh2))
278	{
279	dSP;	210	dSP;
280		211
281	ENTER;	212	ENTER;
282	SAVETMPS;	213	SAVETMPS;
283	PUSHMARK (SP);	214	PUSHMARK (SP);
284	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
285	PUTBACK;	216	PUTBACK;
286	call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR);	217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
287	SPAGAIN;	218	SPAGAIN;
288	FREETMPS;	219	FREETMPS;
289	LEAVE;	220	LEAVE;
290	}
291
292	/* stop if no progress has been made */
293	if (old_len == grp->length)
294	{
295	SvREFCNT_dec (grp->fh2);
296	grp->fh2 = 0;
297	break;
298	}
299	}	221	}
300	}	222	}
301		223
302	static void aio_grp_dec (aio_req grp)	224	static void req_submit (eio_req *req)
303	{	225	{
304	--grp->length;	226	eio_submit (req);
305		227
306	/* call feeder, if applicable */	228	if (expect_false (on_next_submit))
307	aio_grp_feed (grp);
308
309	/* finish, if done */
310	if (!grp->length && grp->fd)
311	{	229	{
312	req_invoke (grp);	230	dSP;
313	req_free (grp);	231	SV *cb = sv_2mortal (on_next_submit);
		232
		233	on_next_submit = 0;
		234
		235	PUSHMARK (SP);
		236	PUTBACK;
		237	call_sv (cb, G_DISCARD | G_EVAL);
314	}	238	}
315	}	239	}
316		240
317	static void poll_wait ()	241	static int req_invoke (eio_req *req)
318	{	242	{
319	fd_set rfd;	243	dSP;
320		244
321	while (nreqs)	245	if (req->flags & FLAG_SV2_RO_OFF)
		246	SvREADONLY_off (req->sv2);
		247
		248	if (!EIO_CANCELLED (req) && req->callback)
322	{	249	{
323	int size;
324	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
325	LOCK (reslock);
326	#endif
327	size = res_queue.size;
328	#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
329	UNLOCK (reslock);
330	#endif
331
332	if (size)
333	return;
334
335	FD_ZERO(&rfd);
336	FD_SET(respipe [0], &rfd);
337
338	select (respipe [0] + 1, &rfd, 0, 0, 0);
339	}
340	}
341
342	static void req_invoke (aio_req req)
343	{
344	dSP;
345
346	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
347	{
348	errno = req->errorno;
349
350	ENTER;	250	ENTER;
351	SAVETMPS;	251	SAVETMPS;
352	PUSHMARK (SP);	252	PUSHMARK (SP);
353	EXTEND (SP, 1);	253	EXTEND (SP, 1);
354		254
355	switch (req->type)	255	switch (req->type)
356	{	256	{
357	case REQ_READDIR:	257	case EIO_READDIR:
358	{	258	{
359	SV *rv = &PL_sv_undef;	259	SV *rv = &PL_sv_undef;
360		260
361	if (req->result >= 0)	261	if (req->result >= 0)
362	{	262	{
363	int i;	263	int i;
364	char *buf = req->data2ptr;	264	char *names = (char *)req->ptr2;
		265	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
365	AV *av = newAV ();	266	AV *av = newAV ();
366		267
367	av_extend (av, req->result - 1);	268	av_extend (av, req->result - 1);
368		269
369	for (i = 0; i < req->result; ++i)	270	for (i = 0; i < req->result; ++i)
370	{	271	{
371	SV *sv = newSVpv (buf, 0);	272	if (req->int1 & EIO_READDIR_DENTS)
		273	{
		274	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
372		275
		276	if (req->int1 & EIO_READDIR_CUSTOM2)
		277	{
		278	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		279	AV *avent = newAV ();
		280
		281	av_extend (avent, 2);
		282
		283	if (!sv_type [ent->type])
		284	{
		285	sv_type [ent->type] = newSViv (ent->type);
		286	SvREADONLY_on (sv_type [ent->type]);
		287	}
		288
		289	av_store (avent, 0, namesv);
		290	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		291	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		292
		293	av_store (av, i, newRV_noinc ((SV *)avent));
		294	}
		295	else
373	av_store (av, i, sv);	296	av_store (av, i, namesv);
		297
		298	++ent;
		299	}
		300	else
		301	{
		302	SV *name = newSVpv (names, 0);
		303	av_store (av, i, name);
374	buf += SvCUR (sv) + 1;	304	names += SvCUR (name) + 1;
		305	}
375	}	306	}
376		307
377	rv = sv_2mortal (newRV_noinc ((SV *)av));	308	rv = sv_2mortal (newRV_noinc ((SV *)av));
378	}	309	}
379		310
380	PUSHs (rv);	311	PUSHs (rv);
		312
		313	if (req->int1 & EIO_READDIR_CUSTOM1)
		314	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
381	}	315	}
382	break;	316	break;
383		317
384	case REQ_OPEN:	318	case EIO_OPEN:
385	{	319	{
386	/* convert fd to fh */	320	/* convert fd to fh */
387	SV *fh;	321	SV *fh = &PL_sv_undef;
388		322
389	PUSHs (sv_2mortal (newSViv (req->result)));	323	if (req->result >= 0)
390	PUTBACK;	324	{
391	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	325	GV *gv = (GV *)sv_newmortal ();
392	SPAGAIN;	326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
		327	char sym [64];
		328	int symlen;
		329
		330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
		331	gv_init (gv, stash, sym, symlen, 0);
393		332
394	fh = SvREFCNT_inc (POPs);	333	symlen = snprintf (
		334	sym,
		335	sizeof (sym),
		336	"%s&=%d",
		337	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		338	(int)req->result
		339	);
395		340
		341	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		342	fh = (SV *)gv;
		343	}
		344
396	PUSHMARK (SP);	345	PUSHs (fh);
397	XPUSHs (sv_2mortal (fh));
398	}	346	}
399	break;	347	break;
400		348
401	case REQ_GROUP:	349	case EIO_GROUP:
402	req->fd = 2; /* mark group as finished */	350	req->int1 = 2; /* mark group as finished */
403		351
404	if (req->data)	352	if (req->sv1)
405	{	353	{
406	int i;	354	int i;
407	AV *av = (AV *)req->data;	355	AV *av = (AV *)req->sv1;
408		356
409	EXTEND (SP, AvFILL (av) + 1);	357	EXTEND (SP, AvFILL (av) + 1);
410	for (i = 0; i <= AvFILL (av); ++i)	358	for (i = 0; i <= AvFILL (av); ++i)
411	PUSHs (*av_fetch (av, i, 0));	359	PUSHs (*av_fetch (av, i, 0));
412	}	360	}
413	break;	361	break;
414		362
415	case REQ_NOP:	363	case EIO_NOP:
416	case REQ_BUSY:	364	case EIO_BUSY:
417	break;	365	break;
		366
		367	case EIO_READLINK:
		368	if (req->result > 0)
		369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
		370	break;
		371
		372	case EIO_STAT:
		373	case EIO_LSTAT:
		374	case EIO_FSTAT:
		375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		376	PL_laststatval = req->result;
		377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		378	PUSHs (sv_2mortal (newSViv (req->result)));
		379	break;
		380
		381	case EIO_READ:
		382	{
		383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		384	*SvEND (req->sv2) = 0;
		385	SvPOK_only (req->sv2);
		386	SvSETMAGIC (req->sv2);
		387	PUSHs (sv_2mortal (newSViv (req->result)));
		388	}
		389	break;
		390
		391	case EIO_DUP2:
		392	if (req->result > 0)
		393	req->result = 0;
		394	/* FALLTHROUGH */
418		395
419	default:	396	default:
420	PUSHs (sv_2mortal (newSViv (req->result)));	397	PUSHs (sv_2mortal (newSViv (req->result)));
421	break;	398	break;
422	}	399	}
423		400
		401	errno = req->errorno;
424		402
425	PUTBACK;	403	PUTBACK;
426	call_sv (req->callback, G_VOID | G_EVAL);	404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
427	SPAGAIN;	405	SPAGAIN;
428		406
429	FREETMPS;	407	FREETMPS;
430	LEAVE;	408	LEAVE;
		409
		410	PUTBACK;
431	}	411	}
432		412
433	if (req->grp)	413	return !!SvTRUE (ERRSV);
434	{
435	aio_req grp = req->grp;
436
437	/* unlink request */
438	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
439	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
440
441	if (grp->grp_first == req)
442	grp->grp_first = req->grp_next;
443
444	aio_grp_dec (grp);
445	}
446
447	if (SvTRUE (ERRSV))
448	{
449	req_free (req);
450	croak (0);
451	}
452	}	414	}
453		415
454	static void req_free (aio_req req)	416	static void req_destroy (aio_req req)
455	{	417	{
456	if (req->self)	418	if (req->self)
457	{	419	{
458	sv_unmagic (req->self, PERL_MAGIC_ext);	420	sv_unmagic (req->self, PERL_MAGIC_ext);
459	SvREFCNT_dec (req->self);	421	SvREFCNT_dec (req->self);
460	}	422	}
461		423
462	SvREFCNT_dec (req->data);
463	SvREFCNT_dec (req->fh);	424	SvREFCNT_dec (req->sv1);
464	SvREFCNT_dec (req->fh2);	425	SvREFCNT_dec (req->sv2);
465	SvREFCNT_dec (req->callback);	426	SvREFCNT_dec (req->callback);
466	Safefree (req->statdata);
467
468	if (req->type == REQ_READDIR)
469	free (req->data2ptr);
470		427
471	Safefree (req);	428	Safefree (req);
472	}	429	}
473		430
474	static void req_cancel_subs (aio_req grp)	431	static void req_cancel_subs (aio_req grp)
475	{	432	{
476	aio_req sub;	433	aio_req sub;
477		434
478	if (grp->type != REQ_GROUP)	435	if (grp->type != EIO_GROUP)
479	return;	436	return;
480		437
481	SvREFCNT_dec (grp->fh2);	438	SvREFCNT_dec (grp->sv2);
482	grp->fh2 = 0;	439	grp->sv2 = 0;
483		440
484	for (sub = grp->grp_first; sub; sub = sub->grp_next)	441	eio_grp_cancel (grp);
485	req_cancel (sub);
486	}	442	}
487		443
488	static void req_cancel (aio_req req)	444	static void
		445	create_respipe (void)
489	{	446	{
490	req->flags |= FLAG_CANCELLED;	447	if (s_epipe_renew (&respipe))
491		448	croak ("IO::AIO: unable to initialize result pipe");
492	req_cancel_subs (req);
493	}	449	}
494		450
		451	static void poll_wait (void)
		452	{
		453	while (eio_nreqs ())
		454	{
		455	int size;
		456
		457	X_LOCK (reslock);
		458	size = res_queue.size;
		459	X_UNLOCK (reslock);
		460
		461	if (size)
		462	return;
		463
		464	etp_maybe_start_thread ();
		465
		466	s_epipe_wait (&respipe);
		467	}
		468	}
		469
495	static int poll_cb ()	470	static int poll_cb (void)
496	{	471	{
497	dSP;
498	int count = 0;
499	int do_croak = 0;
500	aio_req req;
501
502	for (;;)	472	for (;;)
503	{	473	{
504	LOCK (reslock);	474	int res = eio_poll ();
505	req = reqq_shift (&res_queue);
506		475
507	if (req)	476	if (res > 0)
508	{
509	if (!res_queue.size)
510	{
511	/* read any signals sent by the worker threads */
512	char buf [32];
513	while (read (respipe [0], buf, 32) == 32)
514	;
515	}
516	}
517
518	UNLOCK (reslock);
519
520	if (!req)
521	break;	477	croak (0);
522		478
523	--nreqs;	479	if (!max_outstanding || max_outstanding > eio_nreqs ())
		480	return res;
524		481
525	if (req->type == REQ_QUIT)	482	poll_wait ();
526	started--;
527	else if (req->type == REQ_GROUP && req->length)
528	{
529	req->fd = 1; /* mark request as delayed */
530	continue;
531	}
532	else
533	{
534	if (req->type == REQ_READ)
535	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
536
537	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
538	SvREADONLY_off (req->data);
539
540	if (req->statdata)
541	{
542	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
543	PL_laststatval = req->result;
544	PL_statcache = *(req->statdata);
545	}
546
547	req_invoke (req);
548
549	count++;
550	}
551
552	req_free (req);
553	}	483	}
554
555	return count;
556	}
557
558	static void *aio_proc(void *arg);
559
560	static void start_thread (void)
561	{
562	worker *wrk = calloc (1, sizeof (worker));
563
564	if (!wrk)
565	croak ("unable to allocate worker thread data");
566
567	sigset_t fullsigset, oldsigset;
568	pthread_attr_t attr;
569
570	pthread_attr_init (&attr);
571	pthread_attr_setstacksize (&attr, STACKSIZE);
572	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
573
574	sigfillset (&fullsigset);
575
576	LOCK (wrklock);
577	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
578
579	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
580	{
581	wrk->prev = &wrk_first;
582	wrk->next = wrk_first.next;
583	wrk_first.next->prev = wrk;
584	wrk_first.next = wrk;
585	started++;
586	}
587	else
588	free (wrk);
589
590	sigprocmask (SIG_SETMASK, &oldsigset, 0);
591	UNLOCK (wrklock);
592	}
593
594	static void req_send (aio_req req)
595	{
596	while (started < wanted && nreqs >= started)
597	start_thread ();
598
599	++nreqs;
600
601	LOCK (reqlock);
602	reqq_push (&req_queue, req);
603	pthread_cond_signal (&reqwait);
604	UNLOCK (reqlock);
605
606	if (nreqs > max_outstanding)
607	for (;;)
608	{
609	poll_cb ();
610
611	if (nreqs <= max_outstanding)
612	break;
613
614	poll_wait ();
615	}
616	}
617
618	static void end_thread (void)
619	{
620	aio_req req;
621
622	Newz (0, req, 1, aio_cb);
623
624	req->type = REQ_QUIT;
625	req->pri = PRI_MAX + PRI_BIAS;
626
627	req_send (req);
628	}
629
630	static void min_parallel (int nthreads)
631	{
632	if (wanted < nthreads)
633	wanted = nthreads;
634	}
635
636	static void max_parallel (int nthreads)
637	{
638	int cur = started;
639
640	if (wanted > nthreads)
641	wanted = nthreads;
642
643	while (cur > wanted)
644	{
645	end_thread ();
646	cur--;
647	}
648
649	while (started > wanted)
650	{
651	poll_wait ();
652	poll_cb ();
653	}
654	}
655
656	static void create_pipe ()
657	{
658	if (pipe (respipe))
659	croak ("unable to initialize result pipe");
660
661	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
662	croak ("cannot set result pipe to nonblocking mode");
663
664	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
665	croak ("cannot set result pipe to nonblocking mode");
666	}
667
668	/*****************************************************************************/
669	/* work around various missing functions */
670
671	#if !HAVE_PREADWRITE
672	# define pread aio_pread
673	# define pwrite aio_pwrite
674
675	/*
676	* make our pread/pwrite safe against themselves, but not against
677	* normal read/write by using a mutex. slows down execution a lot,
678	* but that's your problem, not mine.
679	*/
680	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
681
682	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
683	{
684	ssize_t res;
685	off_t ooffset;
686
687	LOCK (preadwritelock);
688	ooffset = lseek (fd, 0, SEEK_CUR);
689	lseek (fd, offset, SEEK_SET);
690	res = read (fd, buf, count);
691	lseek (fd, ooffset, SEEK_SET);
692	UNLOCK (preadwritelock);
693
694	return res;
695	}
696
697	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
698	{
699	ssize_t res;
700	off_t ooffset;
701
702	LOCK (preadwritelock);
703	ooffset = lseek (fd, 0, SEEK_CUR);
704	lseek (fd, offset, SEEK_SET);
705	res = write (fd, buf, count);
706	lseek (fd, offset, SEEK_SET);
707	UNLOCK (preadwritelock);
708
709	return res;
710	}
711	#endif
712
713	#if !HAVE_FDATASYNC
714	# define fdatasync fsync
715	#endif
716
717	#if !HAVE_READAHEAD
718	# define readahead aio_readahead
719
720	static ssize_t readahead (int fd, off_t offset, size_t count)
721	{
722	dBUF;
723
724	while (count > 0)
725	{
726	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
727
728	pread (fd, aio_buf, len, offset);
729	offset += len;
730	count -= len;
731	}
732
733	errno = 0;
734	}
735	#endif
736
737	#if !HAVE_READDIR_R
738	# define readdir_r aio_readdir_r
739
740	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
741
742	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
743	{
744	struct dirent *e;
745	int errorno;
746
747	LOCK (readdirlock);
748
749	e = readdir (dirp);
750	errorno = errno;
751
752	if (e)
753	{
754	*res = ent;
755	strcpy (ent->d_name, e->d_name);
756	}
757	else
758	*res = 0;
759
760	UNLOCK (readdirlock);
761
762	errno = errorno;
763	return e ? 0 : -1;
764	}
765	#endif
766
767	/* sendfile always needs emulation */
768	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
769	{
770	ssize_t res;
771
772	if (!count)
773	return 0;
774
775	#if HAVE_SENDFILE
776	# if __linux
777	res = sendfile (ofd, ifd, &offset, count);
778
779	# elif __freebsd
780	/*
781	* Of course, the freebsd sendfile is a dire hack with no thoughts
782	* wasted on making it similar to other I/O functions.
783	*/
784	{
785	off_t sbytes;
786	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
787
788	if (res < 0 && sbytes)
789	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
790	res = sbytes;
791	}
792
793	# elif __hpux
794	res = sendfile (ofd, ifd, offset, count, 0, 0);
795
796	# elif __solaris
797	{
798	struct sendfilevec vec;
799	size_t sbytes;
800
801	vec.sfv_fd = ifd;
802	vec.sfv_flag = 0;
803	vec.sfv_off = offset;
804	vec.sfv_len = count;
805
806	res = sendfilev (ofd, &vec, 1, &sbytes);
807
808	if (res < 0 && sbytes)
809	res = sbytes;
810	}
811
812	# endif
813	#else
814	res = -1;
815	errno = ENOSYS;
816	#endif
817
818	if (res < 0
819	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
820	#if __solaris
821	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE
822	#endif
823	)
824	)
825	{
826	/* emulate sendfile. this is a major pain in the ass */
827	dBUF;
828
829	res = 0;
830
831	while (count)
832	{
833	ssize_t cnt;
834
835	cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
836
837	if (cnt <= 0)
838	{
839	if (cnt && !res) res = -1;
840	break;
841	}
842
843	cnt = write (ofd, aio_buf, cnt);
844
845	if (cnt <= 0)
846	{
847	if (cnt && !res) res = -1;
848	break;
849	}
850
851	offset += cnt;
852	res += cnt;
853	count -= cnt;
854	}
855	}
856
857	return res;
858	}
859
860	/* read a full directory */
861	static void scandir_ (aio_req req, worker *self)
862	{
863	DIR *dirp;
864	union
865	{
866	struct dirent d;
867	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
868	} *u;
869	struct dirent *entp;
870	char *name, *names;
871	int memlen = 4096;
872	int memofs = 0;
873	int res = 0;
874	int errorno;
875
876	LOCK (wrklock);
877	self->dirp = dirp = opendir (req->dataptr);
878	self->dbuf = u = malloc (sizeof (*u));
879	UNLOCK (wrklock);
880
881	req->data2ptr = names = malloc (memlen);
882
883	if (dirp && u && names)
884	for (;;)
885	{
886	errno = 0;
887	readdir_r (dirp, &u->d, &entp);
888
889	if (!entp)
890	break;
891
892	name = entp->d_name;
893
894	if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
895	{
896	int len = strlen (name) + 1;
897
898	res++;
899
900	while (memofs + len > memlen)
901	{
902	memlen *= 2;
903	LOCK (wrklock);
904	req->data2ptr = names = realloc (names, memlen);
905	UNLOCK (wrklock);
906
907	if (!names)
908	break;
909	}
910
911	memcpy (names + memofs, name, len);
912	memofs += len;
913	}
914	}
915
916	if (errno)
917	res = -1;
918
919	req->result = res;
920	}
921
922	/*****************************************************************************/
923
924	static void *aio_proc (void *thr_arg)
925	{
926	aio_req req;
927	int type;
928	worker *self = (worker *)thr_arg;
929
930	do
931	{
932	LOCK (reqlock);
933
934	for (;;)
935	{
936	self->req = req = reqq_shift (&req_queue);
937
938	if (req)
939	break;
940
941	pthread_cond_wait (&reqwait, &reqlock);
942	}
943
944	UNLOCK (reqlock);
945
946	errno = 0; /* strictly unnecessary */
947	type = req->type; /* remember type for QUIT check */
948
949	if (!(req->flags & FLAG_CANCELLED))
950	switch (type)
951	{
952	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
953	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
954
955	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
956	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
957
958	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
959	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
960	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
961
962	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
963	case REQ_CLOSE: req->result = close (req->fd); break;
964	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
965	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
966	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
967	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
968	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
969
970	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
971	case REQ_FSYNC: req->result = fsync (req->fd); break;
972	case REQ_READDIR: scandir_ (req, self); break;
973
974	case REQ_BUSY:
975	{
976	struct timeval tv;
977
978	tv.tv_sec = req->fd;
979	tv.tv_usec = req->fd2;
980
981	req->result = select (0, 0, 0, 0, &tv);
982	}
983
984	case REQ_GROUP:
985	case REQ_NOP:
986	case REQ_QUIT:
987	break;
988
989	default:
990	req->result = ENOSYS;
991	break;
992	}
993
994	req->errorno = errno;
995
996	LOCK (reslock);
997
998	if (!reqq_push (&res_queue, req))
999	/* write a dummy byte to the pipe so fh becomes ready */
1000	write (respipe [1], &respipe, 1);
1001
1002	self->req = 0;
1003	worker_clear (self);
1004
1005	UNLOCK (reslock);
1006	}
1007	while (type != REQ_QUIT);
1008
1009	LOCK (wrklock);
1010	worker_free (self);
1011	UNLOCK (wrklock);
1012
1013	return 0;
1014	}
1015
1016	/*****************************************************************************/
1017
1018	static void atfork_prepare (void)
1019	{
1020	LOCK (wrklock);
1021	LOCK (reqlock);
1022	LOCK (reslock);
1023	#if !HAVE_PREADWRITE
1024	LOCK (preadwritelock);
1025	#endif
1026	#if !HAVE_READDIR_R
1027	LOCK (readdirlock);
1028	#endif
1029	}
1030
1031	static void atfork_parent (void)
1032	{
1033	#if !HAVE_READDIR_R
1034	UNLOCK (readdirlock);
1035	#endif
1036	#if !HAVE_PREADWRITE
1037	UNLOCK (preadwritelock);
1038	#endif
1039	UNLOCK (reslock);
1040	UNLOCK (reqlock);
1041	UNLOCK (wrklock);
1042	}	484	}
1043		485
1044	static void atfork_child (void)	486	static void atfork_child (void)
1045	{	487	{
1046	aio_req prv;
1047
1048	while (prv = reqq_shift (&req_queue))
1049	req_free (prv);
1050
1051	while (prv = reqq_shift (&res_queue))
1052	req_free (prv);
1053
1054	while (wrk_first.next != &wrk_first)
1055	{
1056	worker *wrk = wrk_first.next;
1057
1058	if (wrk->req)
1059	req_free (wrk->req);
1060
1061	worker_clear (wrk);
1062	worker_free (wrk);
1063	}
1064
1065	started = 0;
1066	nreqs = 0;
1067
1068	close (respipe [0]);
1069	close (respipe [1]);
1070	create_pipe ();	488	create_respipe ();
		489	}
1071		490
1072	atfork_parent ();	491	static SV *
		492	get_cb (SV *cb_sv)
		493	{
		494	SvGETMAGIC (cb_sv);
		495	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1073	}	496	}
1074		497
1075	#define dREQ \	498	#define dREQ \
		499	SV *cb_cv; \
1076	aio_req req; \	500	aio_req req; \
1077	int req_pri = next_pri; \	501	int req_pri = next_pri; \
1078	next_pri = DEFAULT_PRI + PRI_BIAS; \	502	next_pri = EIO_PRI_DEFAULT; \
1079	\	503	\
1080	if (SvOK (callback) && !SvROK (callback)) \	504	cb_cv = get_cb (callback); \
1081	croak ("callback must be undef or of reference type"); \
1082	\	505	\
1083	Newz (0, req, 1, aio_cb); \	506	Newz (0, req, 1, eio_req); \
1084	if (!req) \	507	if (!req) \
1085	croak ("out of memory during aio_req allocation"); \	508	croak ("out of memory during eio_req allocation"); \
1086	\	509	\
1087	req->callback = newSVsv (callback); \	510	req->callback = SvREFCNT_inc (cb_cv); \
1088	req->pri = req_pri	511	req->pri = req_pri
1089		512
1090	#define REQ_SEND \	513	#define REQ_SEND \
		514	PUTBACK; \
1091	req_send (req); \	515	req_submit (req); \
		516	SPAGAIN; \
1092	\	517	\
1093	if (GIMME_V != G_VOID) \	518	if (GIMME_V != G_VOID) \
1094	XPUSHs (req_sv (req, AIO_REQ_KLASS));	519	XPUSHs (req_sv (req, AIO_REQ_KLASS));
1095		520
1096	MODULE = IO::AIO PACKAGE = IO::AIO	521	MODULE = IO::AIO PACKAGE = IO::AIO
1097		522
1098	PROTOTYPES: ENABLE	523	PROTOTYPES: ENABLE
1099		524
1100	BOOT:	525	BOOT:
1101	{	526	{
		527	static const struct {
		528	const char *name;
		529	IV iv;
		530	} *civ, const_iv[] = {
		531	# define const_iv(name, value) { # name, (IV) value },
		532	# define const_eio(name) { # name, (IV) EIO_ ## name },
		533	const_iv (EXDEV , EXDEV)
		534	const_iv (ENOSYS , ENOSYS)
		535	const_iv (O_RDONLY, O_RDONLY)
		536	const_iv (O_WRONLY, O_WRONLY)
		537	const_iv (O_CREAT , O_CREAT)
		538	const_iv (O_TRUNC , O_TRUNC)
		539	#ifndef _WIN32
		540	const_iv (S_IFIFO , S_IFIFO)
		541	#endif
		542	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)
		543	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		544	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)
		545	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		546	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		547	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		548
		549	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		550	const_eio (SYNC_FILE_RANGE_WRITE)
		551	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		552
		553	const_eio (READDIR_DENTS)
		554	const_eio (READDIR_DIRS_FIRST)
		555	const_eio (READDIR_STAT_ORDER)
		556	const_eio (READDIR_FOUND_UNKNOWN)
		557
		558	const_eio (DT_UNKNOWN)
		559	const_eio (DT_FIFO)
		560	const_eio (DT_CHR)
		561	const_eio (DT_DIR)
		562	const_eio (DT_BLK)
		563	const_eio (DT_REG)
		564	const_eio (DT_LNK)
		565	const_eio (DT_SOCK)
		566	const_eio (DT_WHT)
		567	};
		568
1102	HV *stash = gv_stashpv ("IO::AIO", 1);	569	stash = gv_stashpv ("IO::AIO", 1);
1103	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1104	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1105	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1106		570
		571	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		572	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
		573
1107	create_pipe ();	574	create_respipe ();
1108	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1109	}
1110		575
		576	if (eio_init (want_poll, done_poll) < 0)
		577	croak ("IO::AIO: unable to initialise eio library");
		578
		579	/* atfork child called in fifo order, so before eio's handler */
		580	X_THREAD_ATFORK (0, 0, atfork_child);
		581	}
		582
1111	void	583	void
1112	min_parallel (nthreads)	584	max_poll_reqs (int nreqs)
1113	int nthreads
1114	PROTOTYPE: $	585	PROTOTYPE: $
		586	CODE:
		587	eio_set_max_poll_reqs (nreqs);
1115		588
1116	void	589	void
1117	max_parallel (nthreads)	590	max_poll_time (double nseconds)
1118	int nthreads
1119	PROTOTYPE: $	591	PROTOTYPE: $
1120
1121	int
1122	max_outstanding (nreqs)
1123	int nreqs
1124	PROTOTYPE: $
1125	CODE:	592	CODE:
1126	RETVAL = max_outstanding;	593	eio_set_max_poll_time (nseconds);
		594
		595	void
		596	min_parallel (int nthreads)
		597	PROTOTYPE: $
		598	CODE:
		599	eio_set_min_parallel (nthreads);
		600
		601	void
		602	max_parallel (int nthreads)
		603	PROTOTYPE: $
		604	CODE:
		605	eio_set_max_parallel (nthreads);
		606
		607	void
		608	max_idle (int nthreads)
		609	PROTOTYPE: $
		610	CODE:
		611	eio_set_max_idle (nthreads);
		612
		613	void
		614	max_outstanding (int maxreqs)
		615	PROTOTYPE: $
		616	CODE:
1127	max_outstanding = nreqs;	617	max_outstanding = maxreqs;
1128		618
1129	void	619	void
1130	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	620	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1131	SV * pathname
1132	int flags
1133	int mode
1134	SV * callback
1135	PROTOTYPE: $$$;$	621	PROTOTYPE: $$$;$
1136	PPCODE:	622	PPCODE:
1137	{	623	{
1138	dREQ;	624	dREQ;
1139		625
1140	req->type = REQ_OPEN;	626	req->type = EIO_OPEN;
1141	req->data = newSVsv (pathname);	627	req->sv1 = newSVsv (pathname);
1142	req->dataptr = SvPVbyte_nolen (req->data);	628	req->ptr1 = SvPVbyte_nolen (req->sv1);
1143	req->fd = flags;	629	req->int1 = flags;
1144	req->mode = mode;	630	req->int2 = mode;
1145		631
1146	REQ_SEND;	632	REQ_SEND;
1147	}	633	}
1148		634
1149	void	635	void
1150	aio_close (fh,callback=&PL_sv_undef)	636	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1151	SV * fh
1152	SV * callback
1153	PROTOTYPE: $;$	637	PROTOTYPE: $;$
1154	ALIAS:	638	ALIAS:
1155	aio_close = REQ_CLOSE
1156	aio_fsync = REQ_FSYNC	639	aio_fsync = EIO_FSYNC
1157	aio_fdatasync = REQ_FDATASYNC	640	aio_fdatasync = EIO_FDATASYNC
1158	PPCODE:	641	PPCODE:
1159	{	642	{
		643	int fd = s_fileno_croak (fh, 0);
1160	dREQ;	644	dREQ;
1161		645
1162	req->type = ix;	646	req->type = ix;
1163	req->fh = newSVsv (fh);	647	req->sv1 = newSVsv (fh);
1164	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	648	req->int1 = fd;
1165		649
1166	REQ_SEND (req);	650	REQ_SEND (req);
1167	}	651	}
1168		652
1169	void	653	void
		654	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		655	PROTOTYPE: $$$$;$
		656	PPCODE:
		657	{
		658	int fd = s_fileno_croak (fh, 0);
		659	dREQ;
		660
		661	req->type = EIO_SYNC_FILE_RANGE;
		662	req->sv1 = newSVsv (fh);
		663	req->int1 = fd;
		664	req->offs = offset;
		665	req->size = nbytes;
		666	req->int2 = flags;
		667
		668	REQ_SEND (req);
		669	}
		670
		671	void
		672	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		673	PROTOTYPE: $;$
		674	PPCODE:
		675	{
		676	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		677	int fd = s_fileno_croak (fh, 0);
		678	dREQ;
		679
		680	if (close_pipe < 0)
		681	{
		682	int pipefd [2];
		683
		684	if (pipe (pipefd) < 0
		685	|| close (pipefd [1]) < 0
		686	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
		687	abort (); /*D*/
		688
		689	close_pipe = pipefd [0];
		690	}
		691
		692	req->type = EIO_DUP2;
		693	req->int1 = close_pipe;
		694	req->sv2 = newSVsv (fh);
		695	req->int2 = fd;
		696
		697	REQ_SEND (req);
		698	}
		699
		700	void
1170	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	701	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1171	SV * fh
1172	UV offset
1173	UV length
1174	SV * data
1175	UV dataoffset
1176	SV * callback
1177	ALIAS:	702	ALIAS:
1178	aio_read = REQ_READ	703	aio_read = EIO_READ
1179	aio_write = REQ_WRITE	704	aio_write = EIO_WRITE
1180	PROTOTYPE: $$$$$;$	705	PROTOTYPE: $$$$$;$
1181	PPCODE:	706	PPCODE:
1182	{	707	{
1183	aio_req req;
1184	STRLEN svlen;	708	STRLEN svlen;
		709	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1185	char *svptr = SvPVbyte (data, svlen);	710	char *svptr = SvPVbyte (data, svlen);
1186		711	UV len = SvUV (length);
1187	SvUPGRADE (data, SVt_PV);
1188	SvPOK_on (data);
1189		712
1190	if (dataoffset < 0)	713	if (dataoffset < 0)
1191	dataoffset += svlen;	714	dataoffset += svlen;
1192		715
1193	if (dataoffset < 0 || dataoffset > svlen)	716	if (dataoffset < 0 || dataoffset > svlen)
1194	croak ("data offset outside of string");	717	croak ("dataoffset outside of data scalar");
1195		718
1196	if (ix == REQ_WRITE)	719	if (ix == EIO_WRITE)
1197	{	720	{
1198	/* write: check length and adjust. */	721	/* write: check length and adjust. */
1199	if (length < 0 || length + dataoffset > svlen)	722	if (!SvOK (length) || len + dataoffset > svlen)
1200	length = svlen - dataoffset;	723	len = svlen - dataoffset;
1201	}	724	}
1202	else	725	else
1203	{	726	{
1204	/* read: grow scalar as necessary */	727	/* read: check type and grow scalar as necessary */
		728	SvUPGRADE (data, SVt_PV);
1205	svptr = SvGROW (data, length + dataoffset);	729	svptr = SvGROW (data, len + dataoffset + 1);
1206	}	730	}
1207
1208	if (length < 0)
1209	croak ("length must not be negative");
1210		731
1211	{	732	{
1212	dREQ;	733	dREQ;
1213		734
1214	req->type = ix;	735	req->type = ix;
1215	req->fh = newSVsv (fh);	736	req->sv1 = newSVsv (fh);
1216	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	737	req->int1 = fd;
1217	: IoOFP (sv_2io (fh)));	738	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1218	req->offset = offset;	739	req->size = len;
1219	req->length = length;
1220	req->data = SvREFCNT_inc (data);	740	req->sv2 = SvREFCNT_inc (data);
1221	req->dataptr = (char *)svptr + dataoffset;	741	req->ptr2 = (char *)svptr + dataoffset;
		742	req->stroffset = dataoffset;
1222		743
1223	if (!SvREADONLY (data))	744	if (!SvREADONLY (data))
1224	{	745	{
1225	SvREADONLY_on (data);	746	SvREADONLY_on (data);
1226	req->data2ptr = (void *)data;	747	req->flags |= FLAG_SV2_RO_OFF;
1227	}	748	}
1228		749
1229	REQ_SEND;	750	REQ_SEND;
1230	}	751	}
1231	}	752	}
1232		753
1233	void	754	void
		755	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		756	PROTOTYPE: $$;$
		757	PPCODE:
		758	{
		759	SV *data;
		760	dREQ;
		761
		762	req->type = EIO_READLINK;
		763	req->sv1 = newSVsv (path);
		764	req->ptr1 = SvPVbyte_nolen (req->sv1);
		765
		766	REQ_SEND;
		767	}
		768
		769	void
1234	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	770	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1235	SV * out_fh
1236	SV * in_fh
1237	UV in_offset
1238	UV length
1239	SV * callback
1240	PROTOTYPE: $$$$;$	771	PROTOTYPE: $$$$;$
1241	PPCODE:	772	PPCODE:
1242	{	773	{
		774	int ifd = s_fileno_croak (in_fh , 0);
		775	int ofd = s_fileno_croak (out_fh, 1);
1243	dREQ;	776	dREQ;
1244		777
1245	req->type = REQ_SENDFILE;	778	req->type = EIO_SENDFILE;
1246	req->fh = newSVsv (out_fh);	779	req->sv1 = newSVsv (out_fh);
1247	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	780	req->int1 = ofd;
1248	req->fh2 = newSVsv (in_fh);	781	req->sv2 = newSVsv (in_fh);
1249	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	782	req->int2 = ifd;
1250	req->offset = in_offset;	783	req->offs = in_offset;
1251	req->length = length;	784	req->size = length;
1252		785
1253	REQ_SEND;	786	REQ_SEND;
1254	}	787	}
1255		788
1256	void	789	void
1257	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	790	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1258	SV * fh
1259	UV offset
1260	IV length
1261	SV * callback
1262	PROTOTYPE: $$$;$	791	PROTOTYPE: $$$;$
1263	PPCODE:	792	PPCODE:
1264	{	793	{
		794	int fd = s_fileno_croak (fh, 0);
1265	dREQ;	795	dREQ;
1266		796
1267	req->type = REQ_READAHEAD;	797	req->type = EIO_READAHEAD;
1268	req->fh = newSVsv (fh);	798	req->sv1 = newSVsv (fh);
1269	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	799	req->int1 = fd;
1270	req->offset = offset;	800	req->offs = offset;
1271	req->length = length;	801	req->size = length;
1272		802
1273	REQ_SEND;	803	REQ_SEND;
1274	}	804	}
1275		805
1276	void	806	void
1277	aio_stat (fh_or_path,callback=&PL_sv_undef)	807	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1278	SV * fh_or_path
1279	SV * callback
1280	ALIAS:	808	ALIAS:
1281	aio_stat = REQ_STAT	809	aio_stat = EIO_STAT
1282	aio_lstat = REQ_LSTAT	810	aio_lstat = EIO_LSTAT
1283	PPCODE:	811	PPCODE:
1284	{	812	{
1285	dREQ;	813	dREQ;
1286		814
1287	New (0, req->statdata, 1, Stat_t);	815	req->sv1 = newSVsv (fh_or_path);
1288	if (!req->statdata)
1289	{
1290	req_free (req);
1291	croak ("out of memory during aio_req->statdata allocation");
1292	}
1293		816
1294	if (SvPOK (fh_or_path))	817	if (SvPOK (req->sv1))
1295	{	818	{
1296	req->type = ix;	819	req->type = ix;
1297	req->data = newSVsv (fh_or_path);
1298	req->dataptr = SvPVbyte_nolen (req->data);	820	req->ptr1 = SvPVbyte_nolen (req->sv1);
1299	}	821	}
1300	else	822	else
1301	{	823	{
1302	req->type = REQ_FSTAT;	824	req->type = EIO_FSTAT;
1303	req->fh = newSVsv (fh_or_path);
1304	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	825	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1305	}	826	}
1306		827
1307	REQ_SEND;	828	REQ_SEND;
1308	}	829	}
1309		830
1310	void	831	void
		832	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		833	PPCODE:
		834	{
		835	dREQ;
		836
		837	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		838	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		839	req->sv1 = newSVsv (fh_or_path);
		840
		841	if (SvPOK (req->sv1))
		842	{
		843	req->type = EIO_UTIME;
		844	req->ptr1 = SvPVbyte_nolen (req->sv1);
		845	}
		846	else
		847	{
		848	req->type = EIO_FUTIME;
		849	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		850	}
		851
		852	REQ_SEND;
		853	}
		854
		855	void
		856	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		857	PPCODE:
		858	{
		859	dREQ;
		860
		861	req->sv1 = newSVsv (fh_or_path);
		862	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		863
		864	if (SvPOK (req->sv1))
		865	{
		866	req->type = EIO_TRUNCATE;
		867	req->ptr1 = SvPVbyte_nolen (req->sv1);
		868	}
		869	else
		870	{
		871	req->type = EIO_FTRUNCATE;
		872	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		873	}
		874
		875	REQ_SEND;
		876	}
		877
		878	void
		879	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		880	ALIAS:
		881	aio_chmod = EIO_CHMOD
		882	aio_mkdir = EIO_MKDIR
		883	PPCODE:
		884	{
		885	dREQ;
		886
		887	req->int2 = mode;
		888	req->sv1 = newSVsv (fh_or_path);
		889
		890	if (SvPOK (req->sv1))
		891	{
		892	req->type = ix;
		893	req->ptr1 = SvPVbyte_nolen (req->sv1);
		894	}
		895	else
		896	{
		897	req->type = EIO_FCHMOD;
		898	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		899	}
		900
		901	REQ_SEND;
		902	}
		903
		904	void
		905	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		906	PPCODE:
		907	{
		908	dREQ;
		909
		910	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		911	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		912	req->sv1 = newSVsv (fh_or_path);
		913
		914	if (SvPOK (req->sv1))
		915	{
		916	req->type = EIO_CHOWN;
		917	req->ptr1 = SvPVbyte_nolen (req->sv1);
		918	}
		919	else
		920	{
		921	req->type = EIO_FCHOWN;
		922	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		923	}
		924
		925	REQ_SEND;
		926	}
		927
		928	void
		929	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		930	PPCODE:
		931	{
		932	dREQ;
		933
		934	req->type = EIO_READDIR;
		935	req->sv1 = newSVsv (pathname);
		936	req->ptr1 = SvPVbyte_nolen (req->sv1);
		937	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		938
		939	if (flags & EIO_READDIR_DENTS)
		940	req->int1 |= EIO_READDIR_CUSTOM2;
		941
		942	REQ_SEND;
		943	}
		944
		945	void
1311	aio_unlink (pathname,callback=&PL_sv_undef)	946	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1312	SV * pathname
1313	SV * callback
1314	ALIAS:	947	ALIAS:
1315	aio_unlink = REQ_UNLINK	948	aio_unlink = EIO_UNLINK
1316	aio_rmdir = REQ_RMDIR	949	aio_rmdir = EIO_RMDIR
1317	aio_readdir = REQ_READDIR	950	aio_readdir = EIO_READDIR
1318	PPCODE:	951	PPCODE:
1319	{	952	{
1320	dREQ;	953	dREQ;
1321		954
1322	req->type = ix;	955	req->type = ix;
1323	req->data = newSVsv (pathname);	956	req->sv1 = newSVsv (pathname);
1324	req->dataptr = SvPVbyte_nolen (req->data);	957	req->ptr1 = SvPVbyte_nolen (req->sv1);
		958
		959	REQ_SEND;
		960	}
		961
		962	void
		963	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
		964	ALIAS:
		965	aio_link = EIO_LINK
		966	aio_symlink = EIO_SYMLINK
		967	aio_rename = EIO_RENAME
		968	PPCODE:
		969	{
		970	dREQ;
		971
		972	req->type = ix;
		973	req->sv1 = newSVsv (oldpath);
		974	req->ptr1 = SvPVbyte_nolen (req->sv1);
		975	req->sv2 = newSVsv (newpath);
		976	req->ptr2 = SvPVbyte_nolen (req->sv2);
1325		977
1326	REQ_SEND;	978	REQ_SEND;
1327	}	979	}
1328		980
1329	void	981	void
1330	aio_link (oldpath,newpath,callback=&PL_sv_undef)	982	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1331	SV * oldpath
1332	SV * newpath
1333	SV * callback
1334	ALIAS:
1335	aio_link = REQ_LINK
1336	aio_symlink = REQ_SYMLINK
1337	aio_rename = REQ_RENAME
1338	PPCODE:	983	PPCODE:
1339	{	984	{
1340	dREQ;	985	dREQ;
1341		986
1342	req->type = ix;	987	req->type = EIO_MKNOD;
1343	req->fh = newSVsv (oldpath);	988	req->sv1 = newSVsv (pathname);
1344	req->data2ptr = SvPVbyte_nolen (req->fh);	989	req->ptr1 = SvPVbyte_nolen (req->sv1);
1345	req->data = newSVsv (newpath);	990	req->int2 = (mode_t)mode;
1346	req->dataptr = SvPVbyte_nolen (req->data);	991	req->offs = dev;
1347		992
1348	REQ_SEND;	993	REQ_SEND;
1349	}	994	}
1350		995
1351	void	996	void
1352	aio_busy (delay,callback=&PL_sv_undef)	997	aio_busy (double delay, SV *callback=&PL_sv_undef)
1353	double delay
1354	SV * callback
1355	PPCODE:	998	PPCODE:
1356	{	999	{
1357	dREQ;	1000	dREQ;
1358		1001
1359	req->type = REQ_BUSY;	1002	req->type = EIO_BUSY;
1360	req->fd = delay < 0. ? 0 : delay;	1003	req->nv1 = delay < 0. ? 0. : delay;
1361	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1362		1004
1363	REQ_SEND;	1005	REQ_SEND;
1364	}	1006	}
1365		1007
1366	void	1008	void
1367	aio_group (callback=&PL_sv_undef)	1009	aio_group (SV *callback=&PL_sv_undef)
1368	SV * callback
1369	PROTOTYPE: ;$	1010	PROTOTYPE: ;$
1370	PPCODE:	1011	PPCODE:
1371	{	1012	{
1372	dREQ;	1013	dREQ;
1373		1014
1374	req->type = REQ_GROUP;	1015	req->type = EIO_GROUP;
		1016
1375	req_send (req);	1017	req_submit (req);
1376
1377	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1018	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1378	}	1019	}
1379		1020
1380	void	1021	void
1381	aio_nop (callback=&PL_sv_undef)	1022	aio_nop (SV *callback=&PL_sv_undef)
1382	SV * callback	1023	ALIAS:
		1024	aio_nop = EIO_NOP
		1025	aio_sync = EIO_SYNC
1383	PPCODE:	1026	PPCODE:
1384	{	1027	{
1385	dREQ;	1028	dREQ;
1386		1029
1387	req->type = REQ_NOP;	1030	req->type = ix;
1388		1031
1389	REQ_SEND;	1032	REQ_SEND;
1390	}	1033	}
1391		1034
1392	void	1035	int
1393	aioreq_pri (int pri = DEFAULT_PRI)	1036	aioreq_pri (int pri = 0)
1394	CODE:	1037	PROTOTYPE: ;$
		1038	CODE:
		1039	RETVAL = next_pri;
		1040	if (items > 0)
		1041	{
1395	if (pri < PRI_MIN) pri = PRI_MIN;	1042	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1396	if (pri > PRI_MAX) pri = PRI_MAX;	1043	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1397	next_pri = pri + PRI_BIAS;	1044	next_pri = pri;
		1045	}
		1046	OUTPUT:
		1047	RETVAL
1398		1048
1399	void	1049	void
1400	aioreq_nice (int nice = 0)	1050	aioreq_nice (int nice = 0)
1401	CODE:	1051	CODE:
1402	nice = next_pri - nice;	1052	nice = next_pri - nice;
1403	if (nice < PRI_MIN) nice = PRI_MIN;	1053	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1404	if (nice > PRI_MAX) nice = PRI_MAX;	1054	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1405	next_pri = nice + PRI_BIAS;	1055	next_pri = nice;
1406		1056
1407	void	1057	void
1408	flush ()	1058	flush ()
1409	PROTOTYPE:	1059	PROTOTYPE:
1410	CODE:	1060	CODE:
1411	while (nreqs)	1061	while (eio_nreqs ())
1412	{	1062	{
1413	poll_wait ();	1063	poll_wait ();
1414	poll_cb ();	1064	poll_cb ();
1415	}	1065	}
1416		1066
1417	void	1067	int
1418	poll()	1068	poll()
1419	PROTOTYPE:	1069	PROTOTYPE:
1420	CODE:	1070	CODE:
1421	if (nreqs)
1422	{
1423	poll_wait ();	1071	poll_wait ();
1424	poll_cb ();	1072	RETVAL = poll_cb ();
1425	}	1073	OUTPUT:
		1074	RETVAL
1426		1075
1427	int	1076	int
1428	poll_fileno()	1077	poll_fileno()
1429	PROTOTYPE:	1078	PROTOTYPE:
1430	CODE:	1079	CODE:
1431	RETVAL = respipe [0];	1080	RETVAL = s_epipe_fd (&respipe);
1432	OUTPUT:	1081	OUTPUT:
1433	RETVAL	1082	RETVAL
1434		1083
1435	int	1084	int
1436	poll_cb(...)	1085	poll_cb(...)
…		…
1442		1091
1443	void	1092	void
1444	poll_wait()	1093	poll_wait()
1445	PROTOTYPE:	1094	PROTOTYPE:
1446	CODE:	1095	CODE:
1447	if (nreqs)
1448	poll_wait ();	1096	poll_wait ();
1449		1097
1450	int	1098	int
1451	nreqs()	1099	nreqs()
1452	PROTOTYPE:	1100	PROTOTYPE:
1453	CODE:	1101	CODE:
1454	RETVAL = nreqs;	1102	RETVAL = eio_nreqs ();
1455	OUTPUT:	1103	OUTPUT:
1456	RETVAL	1104	RETVAL
1457		1105
		1106	int
		1107	nready()
		1108	PROTOTYPE:
		1109	CODE:
		1110	RETVAL = eio_nready ();
		1111	OUTPUT:
		1112	RETVAL
		1113
		1114	int
		1115	npending()
		1116	PROTOTYPE:
		1117	CODE:
		1118	RETVAL = eio_npending ();
		1119	OUTPUT:
		1120	RETVAL
		1121
		1122	int
		1123	nthreads()
		1124	PROTOTYPE:
		1125	CODE:
		1126	RETVAL = eio_nthreads ();
		1127	OUTPUT:
		1128	RETVAL
		1129
		1130	int
		1131	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1132	PROTOTYPE: $$$$
		1133	CODE:
		1134	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
		1135	RETVAL = posix_fadvise (fh, offset, length, advice);
		1136	#else
		1137	RETVAL = errno = ENOSYS;
		1138	#endif
		1139	OUTPUT:
		1140	RETVAL
		1141
		1142	ssize_t
		1143	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1144	PROTOTYPE: $$$$
		1145	CODE:
		1146	eio_sendfile_sync (ofh, ifh, offset, count);
		1147
		1148	void _on_next_submit (SV *cb)
		1149	CODE:
		1150	SvREFCNT_dec (on_next_submit);
		1151	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1152
1458	PROTOTYPES: DISABLE	1153	PROTOTYPES: DISABLE
1459		1154
1460	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1155	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1461		1156
1462	void	1157	void
1463	cancel (aio_req_ornot req)	1158	cancel (aio_req_ornot req)
1464	CODE:	1159	CODE:
1465	req_cancel (req);	1160	eio_cancel (req);
1466		1161
1467	void	1162	void
1468	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1163	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1469	CODE:	1164	PPCODE:
		1165	{
		1166	if (GIMME_V != G_VOID)
		1167	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1168
		1169	if (items > 1)
		1170	{
		1171	SV *cb_cv =get_cb (callback);
		1172
1470	SvREFCNT_dec (req->callback);	1173	SvREFCNT_dec (req->callback);
1471	req->callback = newSVsv (callback);	1174	req->callback = SvREFCNT_inc (cb_cv);
		1175	}
		1176	}
1472		1177
1473	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1178	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1474		1179
1475	void	1180	void
1476	add (aio_req grp, ...)	1181	add (aio_req grp, ...)
1477	PPCODE:	1182	PPCODE:
1478	{	1183	{
1479	int i;	1184	int i;
1480	aio_req req;
1481		1185
1482	if (grp->fd == 2)	1186	if (grp->int1 == 2)
1483	croak ("cannot add requests to IO::AIO::GRP after the group finished");	1187	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1484		1188
1485	for (i = 1; i < items; ++i )	1189	for (i = 1; i < items; ++i )
1486	{	1190	{
		1191	aio_req req;
		1192
1487	if (GIMME_V != G_VOID)	1193	if (GIMME_V != G_VOID)
1488	XPUSHs (sv_2mortal (newSVsv (ST (i))));	1194	XPUSHs (sv_2mortal (newSVsv (ST (i))));
1489		1195
1490	req = SvAIO_REQ (ST (i));	1196	req = SvAIO_REQ (ST (i));
1491		1197
1492	if (req)	1198	if (req)
1493	{	1199	eio_grp_add (grp, req);
1494	++grp->length;
1495	req->grp = grp;
1496
1497	req->grp_prev = 0;
1498	req->grp_next = grp->grp_first;
1499
1500	if (grp->grp_first)
1501	grp->grp_first->grp_prev = req;
1502
1503	grp->grp_first = req;
1504	}
1505	}	1200	}
1506	}	1201	}
1507		1202
1508	void	1203	void
1509	cancel_subs (aio_req_ornot req)	1204	cancel_subs (aio_req_ornot req)
…		…
1513	void	1208	void
1514	result (aio_req grp, ...)	1209	result (aio_req grp, ...)
1515	CODE:	1210	CODE:
1516	{	1211	{
1517	int i;	1212	int i;
		1213	AV *av;
		1214
		1215	grp->errorno = errno;
		1216
1518	AV *av = newAV ();	1217	av = newAV ();
		1218	av_extend (av, items - 1);
1519		1219
1520	for (i = 1; i < items; ++i )	1220	for (i = 1; i < items; ++i )
1521	av_push (av, newSVsv (ST (i)));	1221	av_push (av, newSVsv (ST (i)));
1522		1222
1523	SvREFCNT_dec (grp->data);	1223	SvREFCNT_dec (grp->sv1);
1524	grp->data = (SV *)av;	1224	grp->sv1 = (SV *)av;
1525	}	1225	}
		1226
		1227	void
		1228	errno (aio_req grp, int errorno = errno)
		1229	CODE:
		1230	grp->errorno = errorno;
1526		1231
1527	void	1232	void
1528	limit (aio_req grp, int limit)	1233	limit (aio_req grp, int limit)
1529	CODE:	1234	CODE:
1530	grp->fd2 = limit;	1235	eio_grp_limit (grp, limit);
1531	aio_grp_feed (grp);
1532		1236
1533	void	1237	void
1534	feed (aio_req grp, SV *callback=&PL_sv_undef)	1238	feed (aio_req grp, SV *callback=&PL_sv_undef)
1535	CODE:	1239	CODE:
1536	{	1240	{
1537	SvREFCNT_dec (grp->fh2);	1241	SvREFCNT_dec (grp->sv2);
1538	grp->fh2 = newSVsv (callback);	1242	grp->sv2 = newSVsv (callback);
		1243	grp->feed = aio_grp_feed;
1539		1244
1540	if (grp->fd2 <= 0)	1245	if (grp->int2 <= 0)
1541	grp->fd2 = 2;	1246	grp->int2 = 2;
1542		1247
1543	aio_grp_feed (grp);	1248	eio_grp_limit (grp, grp->int2);
1544	}	1249	}
1545		1250

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