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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.125 by root, Thu Jun 19 09:05:43 2008 UTC vs.
Revision 1.164 by root, Tue May 4 21:14:01 2010 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
		16	#include <sys/statvfs.h>
14	#include <limits.h>	17	#include <limits.h>
15	#include <fcntl.h>	18	#include <fcntl.h>
16	#include <sched.h>	19	#include <sched.h>
		20
		21	#if _POSIX_MEMLOCK \|\| _POSIX_MAPPED_FILES
		22	# include <sys/mman.h>
		23	#endif
17		24
18	/* perl namespace pollution */	25	/* perl namespace pollution */
19	#undef VERSION	26	#undef VERSION
20		27
21	#ifdef _WIN32	28	#ifdef _WIN32
…		…
75		82
76	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
77		84
78	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
80	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
81	#else	90	#else
		91	# define VAL64 NV
82	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
83	#endif	94	#endif
84		95
85	static HV *stash;	96	/*****************************************************************************/
		97
		98	#if __GNUC__ >= 3
		99	# define expect(expr,value) __builtin_expect ((expr),(value))
		100	#else
		101	# define expect(expr,value) (expr)
		102	#endif
		103
		104	#define expect_false(expr) expect ((expr) != 0, 0)
		105	#define expect_true(expr) expect ((expr) != 0, 1)
		106
		107	/*****************************************************************************/
		108
86	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
		110	typedef int aio_rfd; /* read file desriptor */
		111	typedef int aio_wfd; /* write file descriptor */
87		112
88	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV aio_stash, aio_req_stash, *aio_grp_stash;
89	#define AIO_GRP_KLASS "IO::AIO::GRP"
90		114
91	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
92	SV *callback; \	116	SV *callback; \
93	SV sv1, sv2; \	117	SV sv1, sv2; \
94	STRLEN stroffset; \	118	STRLEN stroffset; \
…		…
96		120
97	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
98		122
99	#include "libeio/eio.h"	123	#include "libeio/eio.h"
100		124
		125	#ifndef POSIX_FADV_NORMAL
		126	# define POSIX_FADV_NORMAL 0
		127	# define NO_FADVISE 1
		128	#endif
		129	#ifndef POSIX_FADV_SEQUENTIAL
		130	# define POSIX_FADV_SEQUENTIAL 0
		131	#endif
		132	#ifndef POSIX_FADV_RANDOM
		133	# define POSIX_FADV_RANDOM 0
		134	#endif
		135	#ifndef POSIX_FADV_NOREUSE
		136	# define POSIX_FADV_NOREUSE 0
		137	#endif
		138	#ifndef POSIX_FADV_WILLNEED
		139	# define POSIX_FADV_WILLNEED 0
		140	#endif
		141	#ifndef POSIX_FADV_DONTNEED
		142	# define POSIX_FADV_DONTNEED 0
		143	#endif
		144
		145	#ifndef ST_NODEV
		146	# define ST_NODEV 0
		147	#endif
		148	#ifndef ST_NOEXEC
		149	# define ST_NOEXEC 0
		150	#endif
		151	#ifndef ST_SYNCHRONOUS
		152	# define ST_SYNCHRONOUS 0
		153	#endif
		154	#ifndef ST_MANDLOCK
		155	# define ST_MANDLOCK 0
		156	#endif
		157	#ifndef ST_WRITE
		158	# define ST_WRITE 0
		159	#endif
		160	#ifndef ST_APPEND
		161	# define ST_APPEND 0
		162	#endif
		163	#ifndef ST_IMMUTABLE
		164	# define ST_IMMUTABLE 0
		165	#endif
		166	#ifndef ST_NOATIME
		167	# define ST_NOATIME 0
		168	#endif
		169	#ifndef ST_NODIRATIME
		170	# define ST_NODIRATIME 0
		171	#endif
		172	#ifndef ST_RELATIME
		173	# define ST_RELATIME 0
		174	#endif
		175
		176	#ifndef MCL_CURRENT
		177	# define MCL_CURRENT 0
		178	#endif
		179	#ifndef MCL_FUTURE
		180	# define MCL_FUTURE 0
		181	#endif
		182
		183	#ifndef MAP_ANONYMOUS
		184	# ifdef MAP_ANON
		185	# define MAP_ANONYMOUS MAP_ANON
		186	# else
		187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		188	# endif
		189	#endif
		190	#ifndef MAP_HUGETLB
		191	# define MAP_HUGETLB 0
		192	#endif
		193	#ifndef MAP_LOCKED
		194	# define MAP_LOCKED 0
		195	#endif
		196	#ifndef MAP_NORESERVE
		197	# define MAP_NORESERVE 0
		198	#endif
		199	#ifndef MAP_POPULATE
		200	# define MAP_POPULATE 0
		201	#endif
		202	#ifndef MAP_NONBLOCK
		203	# define MAP_NONBLOCK 0
		204	#endif
		205
		206	#ifndef PAGESIZE
		207	# define PAGESIZE sysconf (_SC_PAGESIZE)
		208	#endif
		209
101	static int req_invoke (eio_req *req);	210	static int req_invoke (eio_req *req);
102	#define EIO_FINISH(req) req_invoke (req)	211	#define EIO_FINISH(req) req_invoke (req)
103	static void aio_grp_feed (eio_req *grp);
104	#define EIO_FEED(req) aio_grp_feed (req)
105	static void req_destroy (eio_req *grp);	212	static void req_destroy (eio_req *grp);
106	#define EIO_DESTROY(req) req_destroy (req)	213	#define EIO_DESTROY(req) req_destroy (req)
107		214
108	enum {	215	enum {
109	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
116		223
117	static SV *on_next_submit;	224	static SV *on_next_submit;
118	static int next_pri = EIO_PRI_DEFAULT;	225	static int next_pri = EIO_PRI_DEFAULT;
119	static int max_outstanding;	226	static int max_outstanding;
120		227
121	static int respipe_osf [2], respipe [2] = { -1, -1 };	228	static s_epipe respipe;
122		229
123	static void req_destroy (aio_req req);	230	static void req_destroy (aio_req req);
124	static void req_cancel (aio_req req);	231	static void req_cancel (aio_req req);
125		232
126	static void want_poll (void)	233	static void want_poll (void)
127	{	234	{
128	/* write a dummy byte to the pipe so fh becomes ready */	235	/* write a dummy byte to the pipe so fh becomes ready */
129	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	236	s_epipe_signal (&respipe);
130	}	237	}
131		238
132	static void done_poll (void)	239	static void done_poll (void)
133	{	240	{
134	/* read any signals sent by the worker threads */	241	/* read any signals sent by the worker threads */
135	char buf [4];	242	s_epipe_drain (&respipe);
136	while (respipe_read (respipe [0], buf, 4) == 4)
137	;
138	}	243	}
139		244
140	/* must be called at most once */	245	/* must be called at most once */
141	static SV req_sv (aio_req req, const char klass)	246	static SV req_sv (aio_req req, HV stash)
142	{	247	{
143	if (!req->self)	248	if (!req->self)
144	{	249	{
145	req->self = (SV *)newHV ();	250	req->self = (SV *)newHV ();
146	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
147	}	252	}
148		253
149	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
150	}	255	}
151		256
152	static aio_req SvAIO_REQ (SV *sv)	257	static aio_req SvAIO_REQ (SV *sv)
153	{	258	{
154	MAGIC *mg;	259	MAGIC *mg;
155		260
156	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	261	if (!SvROK (sv)
		262	\|\| (SvSTASH (SvRV (sv)) != aio_grp_stash
		263	&& SvSTASH (SvRV (sv)) != aio_req_stash
		264	&& !sv_derived_from (sv, "IO::AIO::REQ")))
157	croak ("object of class " AIO_REQ_KLASS " expected");	265	croak ("object of class IO::AIO::REQ expected");
158		266
159	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
160		268
161	return mg ? (aio_req)mg->mg_ptr : 0;	269	return mg ? (aio_req)mg->mg_ptr : 0;
162	}	270	}
…		…
168	dSP;	276	dSP;
169		277
170	ENTER;	278	ENTER;
171	SAVETMPS;	279	SAVETMPS;
172	PUSHMARK (SP);	280	PUSHMARK (SP);
173	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	281	XPUSHs (req_sv (grp, aio_grp_stash));
174	PUTBACK;	282	PUTBACK;
175	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);	283	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);
176	SPAGAIN;	284	SPAGAIN;
177	FREETMPS;	285	FREETMPS;
178	LEAVE;	286	LEAVE;
…		…
181		289
182	static void req_submit (eio_req *req)	290	static void req_submit (eio_req *req)
183	{	291	{
184	eio_submit (req);	292	eio_submit (req);
185		293
186	if (on_next_submit)	294	if (expect_false (on_next_submit))
187	{	295	{
188	dSP;	296	dSP;
189	SV *cb = sv_2mortal (on_next_submit);	297	SV *cb = sv_2mortal (on_next_submit);
190		298
191	on_next_submit = 0;	299	on_next_submit = 0;
…		…
201	dSP;	309	dSP;
202		310
203	if (req->flags & FLAG_SV2_RO_OFF)	311	if (req->flags & FLAG_SV2_RO_OFF)
204	SvREADONLY_off (req->sv2);	312	SvREADONLY_off (req->sv2);
205		313
206	if (!EIO_CANCELLED (req) && SvOK (req->callback))	314	if (!EIO_CANCELLED (req) && req->callback)
207	{	315	{
208	ENTER;	316	ENTER;
209	SAVETMPS;	317	SAVETMPS;
210	PUSHMARK (SP);	318	PUSHMARK (SP);
211	EXTEND (SP, 1);	319	EXTEND (SP, 1);
…		…
217	SV *rv = &PL_sv_undef;	325	SV *rv = &PL_sv_undef;
218		326
219	if (req->result >= 0)	327	if (req->result >= 0)
220	{	328	{
221	int i;	329	int i;
222	char *buf = req->ptr2;	330	char names = (char )req->ptr2;
		331	eio_dirent ent = (eio_dirent )req->ptr1; /* might be 0 */
223	AV *av = newAV ();	332	AV *av = newAV ();
224		333
225	av_extend (av, req->result - 1);	334	av_extend (av, req->result - 1);
226		335
227	for (i = 0; i < req->result; ++i)	336	for (i = 0; i < req->result; ++i)
228	{	337	{
229	SV *sv = newSVpv (buf, 0);	338	if (req->int1 & EIO_READDIR_DENTS)
		339	{
		340	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
230		341
		342	if (req->int1 & EIO_READDIR_CUSTOM2)
		343	{
		344	static SV sv_type [EIO_DT_MAX + 1]; / type sv cache */
		345	AV *avent = newAV ();
		346
		347	av_extend (avent, 2);
		348
		349	if (!sv_type [ent->type])
		350	{
		351	sv_type [ent->type] = newSViv (ent->type);
		352	SvREADONLY_on (sv_type [ent->type]);
		353	}
		354
		355	av_store (avent, 0, namesv);
		356	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		357	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		358
		359	av_store (av, i, newRV_noinc ((SV *)avent));
		360	}
		361	else
231	av_store (av, i, sv);	362	av_store (av, i, namesv);
		363
		364	++ent;
		365	}
		366	else
		367	{
		368	SV *name = newSVpv (names, 0);
		369	av_store (av, i, name);
232	buf += SvCUR (sv) + 1;	370	names += SvCUR (name) + 1;
		371	}
233	}	372	}
234		373
235	rv = sv_2mortal (newRV_noinc ((SV *)av));	374	rv = sv_2mortal (newRV_noinc ((SV *)av));
236	}	375	}
237		376
238	PUSHs (rv);	377	PUSHs (rv);
		378
		379	if (req->int1 & EIO_READDIR_CUSTOM1)
		380	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 \| EIO_READDIR_CUSTOM2))));
239	}	381	}
240	break;	382	break;
241		383
242	case EIO_OPEN:	384	case EIO_OPEN:
243	{	385	{
…		…
249	GV gv = (GV )sv_newmortal ();	391	GV gv = (GV )sv_newmortal ();
250	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);	392	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);
251	char sym [64];	393	char sym [64];
252	int symlen;	394	int symlen;
253		395
254	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	396	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
255	gv_init (gv, stash, sym, symlen, 0);	397	gv_init (gv, aio_stash, sym, symlen, 0);
256		398
257	symlen = snprintf (	399	symlen = snprintf (
258	sym,	400	sym,
259	sizeof (sym),	401	sizeof (sym),
260	"%s&=%d",	402	"%s&=%d",
261	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	403	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
262	req->result	404	(int)req->result
263	);	405	);
264		406
265	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	407	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
266	fh = (SV *)gv;	408	fh = (SV *)gv;
267	}	409	}
268		410
269	PUSHs (fh);	411	PUSHs (fh);
270	}	412	}
		413	break;
		414
		415	case EIO_STATVFS:
		416	case EIO_FSTATVFS:
		417	{
		418	SV *rv = &PL_sv_undef;
		419
		420	if (req->result >= 0)
		421	{
		422	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		423	HV *hv = newHV ();
		424
		425	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		426
		427	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		428	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		429	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		430	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		431	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		432	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		433	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		434	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		435	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		436	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		437	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		438	}
		439
		440	PUSHs (rv);
		441	}
		442
271	break;	443	break;
272		444
273	case EIO_GROUP:	445	case EIO_GROUP:
274	req->int1 = 2; /* mark group as finished */	446	req->int1 = 2; /* mark group as finished */
275		447
…		…
301	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);	473	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);
302	PUSHs (sv_2mortal (newSViv (req->result)));	474	PUSHs (sv_2mortal (newSViv (req->result)));
303	break;	475	break;
304		476
305	case EIO_READ:	477	case EIO_READ:
		478	{
306	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	479	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
307	*SvEND (req->sv2) = 0;	480	*SvEND (req->sv2) = 0;
		481	SvPOK_only (req->sv2);
		482	SvSETMAGIC (req->sv2);
308	PUSHs (sv_2mortal (newSViv (req->result)));	483	PUSHs (sv_2mortal (newSViv (req->result)));
		484	}
309	break;	485	break;
310		486
311	case EIO_DUP2:	487	case EIO_DUP2:
312	if (req->result > 0)	488	if (req->result > 0)
313	req->result = 0;	489	req->result = 0;
…		…
359	grp->sv2 = 0;	535	grp->sv2 = 0;
360		536
361	eio_grp_cancel (grp);	537	eio_grp_cancel (grp);
362	}	538	}
363		539
364	#ifdef USE_SOCKETS_AS_HANDLES
365	# define TO_SOCKET(x) (win32_get_osfhandle (x))
366	#else
367	# define TO_SOCKET(x) (x)
368	#endif
369
370	static void	540	static void
371	create_respipe (void)	541	create_respipe (void)
372	{	542	{
373	int old_readfd = respipe [0];
374
375	if (respipe [1] >= 0)
376	respipe_close (TO_SOCKET (respipe [1]));
377
378	#ifdef _WIN32
379	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
380	#else
381	if (pipe (respipe))	543	if (s_epipe_renew (&respipe))
382	#endif
383	croak ("unable to initialize result pipe");	544	croak ("IO::AIO: unable to initialize result pipe");
384
385	if (old_readfd >= 0)
386	{
387	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
388	croak ("unable to initialize result pipe(2)");
389
390	respipe_close (respipe [0]);
391	respipe [0] = old_readfd;
392	}
393
394	#ifdef _WIN32
395	int arg = 1;
396	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
397	\|\| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
398	#else
399	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
400	\|\| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
401	#endif
402	croak ("unable to initialize result pipe(3)");
403
404	respipe_osf [0] = TO_SOCKET (respipe [0]);
405	respipe_osf [1] = TO_SOCKET (respipe [1]);
406	}	545	}
407		546
408	static void poll_wait (void)	547	static void poll_wait (void)
409	{	548	{
410	fd_set rfd;
411
412	while (eio_nreqs ())	549	while (eio_nreqs ())
413	{	550	{
414	int size;	551	int size;
415		552
416	X_LOCK (reslock);	553	X_LOCK (reslock);
…		…
420	if (size)	557	if (size)
421	return;	558	return;
422		559
423	etp_maybe_start_thread ();	560	etp_maybe_start_thread ();
424		561
425	FD_ZERO (&rfd);	562	s_epipe_wait (&respipe);
426	FD_SET (respipe [0], &rfd);
427
428	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
429	}	563	}
430	}	564	}
431		565
432	static int poll_cb (void)	566	static int poll_cb (void)
433	{	567	{
…		…
448	static void atfork_child (void)	582	static void atfork_child (void)
449	{	583	{
450	create_respipe ();	584	create_respipe ();
451	}	585	}
452		586
		587	/*****************************************************************************/
		588
		589	#if !_POSIX_MAPPED_FILES
		590	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		591	# define munmap(addr,length) (errno = ENOSYS, -1)
		592	#endif
		593
		594	#define MMAP_MAGIC PERL_MAGIC_ext
		595
		596	static int
		597	mmap_free (pTHX_ SV sv, MAGIC mg)
		598	{
		599	int old_errno = errno;
		600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		601	errno = old_errno;
		602
		603	mg->mg_obj = 0; /* just in case */
		604
		605	SvREADONLY_off (sv);
		606	SvCUR_set (sv, 0);
		607	SvLEN_set (sv, 0);
		608	SvPVX (sv) = 0;
		609	SvOK_off (sv);
		610
		611	return 0;
		612	}
		613
		614	static MGVTBL mmap_vtbl = {
		615	0, 0, 0, 0, mmap_free
		616	};
		617
		618	/*****************************************************************************/
		619
		620	static SV *
		621	get_cb (SV *cb_sv)
		622	{
		623	SvGETMAGIC (cb_sv);
		624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		625	}
		626
453	#define dREQ \	627	#define dREQ \
		628	SV *cb_cv; \
454	aio_req req; \	629	aio_req req; \
455	int req_pri = next_pri; \	630	int req_pri = next_pri; \
456	next_pri = EIO_PRI_DEFAULT; \	631	next_pri = EIO_PRI_DEFAULT; \
457	\	632	\
458	if (SvOK (callback) && !SvROK (callback)) \	633	cb_cv = get_cb (callback); \
459	croak ("callback must be undef or of reference type"); \
460	\	634	\
461	Newz (0, req, 1, eio_req); \	635	Newz (0, req, 1, eio_req); \
462	if (!req) \	636	if (!req) \
463	croak ("out of memory during eio_req allocation"); \	637	croak ("out of memory during eio_req allocation"); \
464	\	638	\
465	req->callback = newSVsv (callback); \	639	req->callback = SvREFCNT_inc (cb_cv); \
466	req->pri = req_pri	640	req->pri = req_pri
467		641
468	#define REQ_SEND \	642	#define REQ_SEND \
		643	PUTBACK; \
469	req_submit (req); \	644	req_submit (req); \
		645	SPAGAIN; \
470	\	646	\
471	if (GIMME_V != G_VOID) \	647	if (GIMME_V != G_VOID) \
472	XPUSHs (req_sv (req, AIO_REQ_KLASS));	648	XPUSHs (req_sv (req, aio_req_stash));
473		649
474	MODULE = IO::AIO PACKAGE = IO::AIO	650	MODULE = IO::AIO PACKAGE = IO::AIO
475		651
476	PROTOTYPES: ENABLE	652	PROTOTYPES: ENABLE
477		653
478	BOOT:	654	BOOT:
479	{	655	{
480	stash = gv_stashpv ("IO::AIO", 1);	656	static const struct {
481		657	const char *name;
482	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	658	IV iv;
483	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	659	} *civ, const_iv[] = {
484	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	660	# define const_niv(name, value) { # name, (IV) value },
485	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	661	# define const_iv(name) { # name, (IV) name },
486	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	662	# define const_eio(name) { # name, (IV) EIO_ ## name },
		663	const_iv (EXDEV)
		664	const_iv (ENOSYS)
		665	const_iv (O_RDONLY)
		666	const_iv (O_WRONLY)
		667	const_iv (O_RDWR)
		668	const_iv (O_CREAT)
		669	const_iv (O_TRUNC)
		670	const_iv (O_EXCL)
		671	const_iv (O_APPEND)
487	#ifndef _WIN32	672	#ifndef _WIN32
488	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	673	const_iv (S_IFIFO)
489	#endif	674	#endif
		675	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		676	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		677	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		678	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		679	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		680	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
490		681
		682	const_iv (ST_RDONLY)
		683	const_iv (ST_NOSUID)
		684	const_iv (ST_NODEV)
		685	const_iv (ST_NOEXEC)
		686	const_iv (ST_SYNCHRONOUS)
		687	const_iv (ST_MANDLOCK)
		688	const_iv (ST_WRITE)
		689	const_iv (ST_APPEND)
		690	const_iv (ST_IMMUTABLE)
		691	const_iv (ST_NOATIME)
		692	const_iv (ST_NODIRATIME)
		693	const_iv (ST_RELATIME)
		694
		695	const_iv (PROT_EXEC)
		696	const_iv (PROT_NONE)
		697	const_iv (PROT_READ)
		698	const_iv (PROT_WRITE)
		699
		700	/const_iv (MAP_FIXED)/
		701	const_iv (MAP_PRIVATE)
		702	const_iv (MAP_SHARED)
		703	const_iv (MAP_ANONYMOUS)
		704
		705	/* linuxish */
		706	const_iv (MAP_HUGETLB)
		707	const_iv (MAP_LOCKED)
		708	const_iv (MAP_NORESERVE)
		709	const_iv (MAP_POPULATE)
		710	const_iv (MAP_NONBLOCK)
		711
		712	const_iv (MCL_FUTURE)
		713	const_iv (MCL_CURRENT)
		714
		715	const_eio (MS_ASYNC)
		716	const_eio (MS_INVALIDATE)
		717	const_eio (MS_SYNC)
		718
		719	const_eio (MT_MODIFY)
		720
		721	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		722	const_eio (SYNC_FILE_RANGE_WRITE)
		723	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		724
		725	const_eio (READDIR_DENTS)
		726	const_eio (READDIR_DIRS_FIRST)
		727	const_eio (READDIR_STAT_ORDER)
		728	const_eio (READDIR_FOUND_UNKNOWN)
		729
		730	const_eio (DT_UNKNOWN)
		731	const_eio (DT_FIFO)
		732	const_eio (DT_CHR)
		733	const_eio (DT_DIR)
		734	const_eio (DT_BLK)
		735	const_eio (DT_REG)
		736	const_eio (DT_LNK)
		737	const_eio (DT_SOCK)
		738	const_eio (DT_WHT)
		739	};
		740
		741	aio_stash = gv_stashpv ("IO::AIO" , 1);
		742	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		743	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		744
		745	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		746	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		747
		748	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		749
491	create_respipe ();	750	create_respipe ();
492		751
493	if (eio_init (want_poll, done_poll) < 0)	752	if (eio_init (want_poll, done_poll) < 0)
494	croak ("IO::AIO: unable to initialise eio library");	753	croak ("IO::AIO: unable to initialise eio library");
495		754
496	/* atfork child called in fifo order, so before eio's handler */	755	/* atfork child called in fifo order, so before eio's handler */
497	X_THREAD_ATFORK (0, 0, atfork_child);	756	X_THREAD_ATFORK (0, 0, atfork_child);
498	}	757	}
499		758
500	void	759	void
501	max_poll_reqs (int nreqs)	760	max_poll_reqs (int nreqs)
502	PROTOTYPE: $	761	PROTOTYPE: $
…		…
555	ALIAS:	814	ALIAS:
556	aio_fsync = EIO_FSYNC	815	aio_fsync = EIO_FSYNC
557	aio_fdatasync = EIO_FDATASYNC	816	aio_fdatasync = EIO_FDATASYNC
558	PPCODE:	817	PPCODE:
559	{	818	{
		819	int fd = s_fileno_croak (fh, 0);
560	dREQ;	820	dREQ;
561		821
562	req->type = ix;	822	req->type = ix;
563	req->sv1 = newSVsv (fh);	823	req->sv1 = newSVsv (fh);
564	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	824	req->int1 = fd;
		825
		826	REQ_SEND (req);
		827	}
		828
		829	void
		830	aio_sync_file_range (SV fh, off_t offset, size_t nbytes, UV flags, SV callback=&PL_sv_undef)
		831	PROTOTYPE: $$$$;$
		832	PPCODE:
		833	{
		834	int fd = s_fileno_croak (fh, 0);
		835	dREQ;
		836
		837	req->type = EIO_SYNC_FILE_RANGE;
		838	req->sv1 = newSVsv (fh);
		839	req->int1 = fd;
		840	req->offs = offset;
		841	req->size = nbytes;
		842	req->int2 = flags;
565		843
566	REQ_SEND (req);	844	REQ_SEND (req);
567	}	845	}
568		846
569	void	847	void
570	aio_close (SV fh, SV callback=&PL_sv_undef)	848	aio_close (SV fh, SV callback=&PL_sv_undef)
571	PROTOTYPE: $;$	849	PROTOTYPE: $;$
572	PPCODE:	850	PPCODE:
573	{	851	{
574	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	852	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		853	int fd = s_fileno_croak (fh, 0);
575	dREQ;	854	dREQ;
576		855
577	if (close_pipe < 0)	856	if (close_pipe < 0)
578	{	857	{
579	int pipefd [2];	858	int pipefd [2];
…		…
587	}	866	}
588		867
589	req->type = EIO_DUP2;	868	req->type = EIO_DUP2;
590	req->int1 = close_pipe;	869	req->int1 = close_pipe;
591	req->sv2 = newSVsv (fh);	870	req->sv2 = newSVsv (fh);
592	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	871	req->int2 = fd;
593		872
594	REQ_SEND (req);	873	REQ_SEND (req);
595	}	874	}
596		875
597	void	876	void
…		…
601	aio_write = EIO_WRITE	880	aio_write = EIO_WRITE
602	PROTOTYPE: $$$$$;$	881	PROTOTYPE: $$$$$;$
603	PPCODE:	882	PPCODE:
604	{	883	{
605	STRLEN svlen;	884	STRLEN svlen;
		885	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
606	char *svptr = SvPVbyte (data, svlen);	886	char *svptr = SvPVbyte (data, svlen);
607	UV len = SvUV (length);	887	UV len = SvUV (length);
608
609	SvUPGRADE (data, SVt_PV);
610	SvPOK_on (data);
611		888
612	if (dataoffset < 0)	889	if (dataoffset < 0)
613	dataoffset += svlen;	890	dataoffset += svlen;
614		891
615	if (dataoffset < 0 \|\| dataoffset > svlen)	892	if (dataoffset < 0 \|\| dataoffset > svlen)
…		…
621	if (!SvOK (length) \|\| len + dataoffset > svlen)	898	if (!SvOK (length) \|\| len + dataoffset > svlen)
622	len = svlen - dataoffset;	899	len = svlen - dataoffset;
623	}	900	}
624	else	901	else
625	{	902	{
626	/* read: grow scalar as necessary */	903	/* read: check type and grow scalar as necessary */
		904	SvUPGRADE (data, SVt_PV);
627	svptr = SvGROW (data, len + dataoffset + 1);	905	svptr = SvGROW (data, len + dataoffset + 1);
628	}	906	}
629		907
630	if (len < 0)
631	croak ("length must not be negative");
632
633	{	908	{
634	dREQ;	909	dREQ;
635		910
636	req->type = ix;	911	req->type = ix;
637	req->sv1 = newSVsv (fh);	912	req->sv1 = newSVsv (fh);
638	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	913	req->int1 = fd;
639	: IoOFP (sv_2io (fh)));
640	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	914	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
641	req->size = len;	915	req->size = len;
642	req->sv2 = SvREFCNT_inc (data);	916	req->sv2 = SvREFCNT_inc (data);
643	req->ptr2 = (char *)svptr + dataoffset;	917	req->ptr2 = (char *)svptr + dataoffset;
644	req->stroffset = dataoffset;	918	req->stroffset = dataoffset;
…		…
667		941
668	REQ_SEND;	942	REQ_SEND;
669	}	943	}
670		944
671	void	945	void
672	aio_sendfile (SV out_fh, SV in_fh, SV in_offset, UV length, SV callback=&PL_sv_undef)	946	aio_sendfile (SV out_fh, SV in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
673	PROTOTYPE: $$$$;$	947	PROTOTYPE: $$$$;$
674	PPCODE:	948	PPCODE:
675	{	949	{
		950	int ifd = s_fileno_croak (in_fh , 0);
		951	int ofd = s_fileno_croak (out_fh, 1);
676	dREQ;	952	dREQ;
677		953
678	req->type = EIO_SENDFILE;	954	req->type = EIO_SENDFILE;
679	req->sv1 = newSVsv (out_fh);	955	req->sv1 = newSVsv (out_fh);
680	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	956	req->int1 = ofd;
681	req->sv2 = newSVsv (in_fh);	957	req->sv2 = newSVsv (in_fh);
682	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	958	req->int2 = ifd;
683	req->offs = SvVAL64 (in_offset);	959	req->offs = in_offset;
684	req->size = length;	960	req->size = length;
685		961
686	REQ_SEND;	962	REQ_SEND;
687	}	963	}
688		964
689	void	965	void
690	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)	966	aio_readahead (SV fh, off_t offset, size_t length, SV callback=&PL_sv_undef)
691	PROTOTYPE: $$$;$	967	PROTOTYPE: $$$;$
692	PPCODE:	968	PPCODE:
693	{	969	{
		970	int fd = s_fileno_croak (fh, 0);
694	dREQ;	971	dREQ;
695		972
696	req->type = EIO_READAHEAD;	973	req->type = EIO_READAHEAD;
697	req->sv1 = newSVsv (fh);	974	req->sv1 = newSVsv (fh);
698	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	975	req->int1 = fd;
699	req->offs = SvVAL64 (offset);	976	req->offs = offset;
700	req->size = length;	977	req->size = length;
701		978
702	REQ_SEND;	979	REQ_SEND;
703	}	980	}
704		981
705	void	982	void
706	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)	983	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)
707	ALIAS:	984	ALIAS:
708	aio_stat = EIO_STAT	985	aio_stat = EIO_STAT
709	aio_lstat = EIO_LSTAT	986	aio_lstat = EIO_LSTAT
		987	aio_statvfs = EIO_STATVFS
710	PPCODE:	988	PPCODE:
711	{	989	{
712	dREQ;	990	dREQ;
713		991
714	req->sv1 = newSVsv (fh_or_path);	992	req->sv1 = newSVsv (fh_or_path);
…		…
718	req->type = ix;	996	req->type = ix;
719	req->ptr1 = SvPVbyte_nolen (req->sv1);	997	req->ptr1 = SvPVbyte_nolen (req->sv1);
720	}	998	}
721	else	999	else
722	{	1000	{
723	req->type = EIO_FSTAT;	1001	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
724	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1002	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
725	}	1003	}
726		1004
727	REQ_SEND;	1005	REQ_SEND;
728	}	1006	}
…		…
823		1101
824	REQ_SEND;	1102	REQ_SEND;
825	}	1103	}
826		1104
827	void	1105	void
		1106	aio_readdirx (SV8 pathname, IV flags, SV callback=&PL_sv_undef)
		1107	PPCODE:
		1108	{
		1109	dREQ;
		1110
		1111	req->type = EIO_READDIR;
		1112	req->sv1 = newSVsv (pathname);
		1113	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1114	req->int1 = flags \| EIO_READDIR_DENTS \| EIO_READDIR_CUSTOM1;
		1115
		1116	if (flags & EIO_READDIR_DENTS)
		1117	req->int1 \|= EIO_READDIR_CUSTOM2;
		1118
		1119	REQ_SEND;
		1120	}
		1121
		1122	void
828	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)	1123	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)
829	ALIAS:	1124	ALIAS:
830	aio_unlink = EIO_UNLINK	1125	aio_unlink = EIO_UNLINK
831	aio_rmdir = EIO_RMDIR	1126	aio_rmdir = EIO_RMDIR
832	aio_readdir = EIO_READDIR	1127	aio_readdir = EIO_READDIR
…		…
874		1169
875	REQ_SEND;	1170	REQ_SEND;
876	}	1171	}
877		1172
878	void	1173	void
		1174	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1175	ALIAS:
		1176	aio_mtouch = EIO_MTOUCH
		1177	aio_msync = EIO_MSYNC
		1178	PROTOTYPE: $$$$;$
		1179	PPCODE:
		1180	{
		1181	STRLEN svlen;
		1182	UV len = SvUV (length);
		1183	char *svptr = SvPVbyte (data, svlen);
		1184
		1185	if (offset < 0)
		1186	offset += svlen;
		1187
		1188	if (offset < 0 \|\| offset > svlen)
		1189	croak ("offset outside of scalar");
		1190
		1191	if (!SvOK (length) \|\| len + offset > svlen)
		1192	len = svlen - offset;
		1193
		1194	{
		1195	dREQ;
		1196
		1197	req->type = ix;
		1198	req->size = len;
		1199	req->sv2 = SvREFCNT_inc (data);
		1200	req->ptr2 = (char *)svptr + offset;
		1201	req->int1 = flags;
		1202
		1203	REQ_SEND;
		1204	}
		1205	}
		1206
		1207	void
879	aio_busy (double delay, SV *callback=&PL_sv_undef)	1208	aio_busy (double delay, SV *callback=&PL_sv_undef)
880	PPCODE:	1209	PPCODE:
881	{	1210	{
882	dREQ;	1211	dREQ;
883		1212
…		…
894	{	1223	{
895	dREQ;	1224	dREQ;
896		1225
897	req->type = EIO_GROUP;	1226	req->type = EIO_GROUP;
898		1227
899	eio_submit (req);	1228	req_submit (req);
900	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1229	XPUSHs (req_sv (req, aio_grp_stash));
901	}	1230	}
902		1231
903	void	1232	void
904	aio_nop (SV *callback=&PL_sv_undef)	1233	aio_nop (SV *callback=&PL_sv_undef)
905	ALIAS:	1234	ALIAS:
…		…
957		1286
958	int	1287	int
959	poll_fileno()	1288	poll_fileno()
960	PROTOTYPE:	1289	PROTOTYPE:
961	CODE:	1290	CODE:
962	RETVAL = respipe [0];	1291	RETVAL = s_epipe_fd (&respipe);
963	OUTPUT:	1292	OUTPUT:
964	RETVAL	1293	RETVAL
965		1294
966	int	1295	int
967	poll_cb(...)	1296	poll_cb(...)
…		…
1007	CODE:	1336	CODE:
1008	RETVAL = eio_nthreads ();	1337	RETVAL = eio_nthreads ();
1009	OUTPUT:	1338	OUTPUT:
1010	RETVAL	1339	RETVAL
1011		1340
		1341	int
		1342	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1343	PROTOTYPE: $$$$
		1344	CODE:
		1345	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
		1346	RETVAL = posix_fadvise (fh, offset, length, advice);
		1347	#else
		1348	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
		1349	#endif
		1350	OUTPUT:
		1351	RETVAL
		1352
		1353	ssize_t
		1354	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1355	PROTOTYPE: $$$$
		1356	CODE:
		1357	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1358	OUTPUT:
		1359	RETVAL
		1360
		1361	void
		1362	mmap (SV scalar, size_t length, int prot, int flags, SV fh, off_t offset = 0)
		1363	PROTOTYPE: $$$$$;$
		1364	PPCODE:
		1365	sv_unmagic (scalar, MMAP_MAGIC);
		1366	{
		1367	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1368	void addr = (void )mmap (0, length, prot, flags, fd, offset);
		1369	if (addr == (void *)-1)
		1370	XSRETURN_NO;
		1371
		1372	/* we store the length in mg_obj, as namlen is I32 :/ */
		1373	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1374	->mg_obj = (SV *)length;
		1375
		1376	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1377	if (!(prot & PROT_WRITE))
		1378	SvREADONLY_on (scalar);
		1379
		1380	SvPVX (scalar) = (char *)addr;
		1381	SvCUR_set (scalar, length);
		1382	SvLEN_set (scalar, 0);
		1383	SvPOK_only (scalar);
		1384
		1385	XSRETURN_YES;
		1386	}
		1387
		1388	void
		1389	munmap (SV *scalar)
		1390	PROTOTYPE: $
		1391	CODE:
		1392	sv_unmagic (scalar, MMAP_MAGIC);
		1393
		1394	int
		1395	mlockall (int flags)
		1396	PROTOTYPE: $
		1397	CODE:
		1398	#if _POSIX_MEMLOCK
		1399	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
		1400	extern int mallopt (int, int);
		1401	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
		1402	#endif
		1403	mlockall (flags);
		1404	#else
		1405	RETVAL = -1;
		1406	errno = ENOSYS;
		1407	#endif
		1408	OUTPUT:
		1409	RETVAL
		1410
		1411	int
		1412	munlockall ()
		1413	PROTOTYPE:
		1414	CODE:
		1415	#if _POSIX_MEMLOCK
		1416	munlockall ();
		1417	#else
		1418	RETVAL = -1;
		1419	errno = ENOSYS;
		1420	#endif
		1421	OUTPUT:
		1422	RETVAL
		1423
1012	void _on_next_submit (SV *cb)	1424	void _on_next_submit (SV *cb)
1013	CODE:	1425	CODE:
1014	SvREFCNT_dec (on_next_submit);	1426	SvREFCNT_dec (on_next_submit);
1015	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1427	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1016		1428
…		…
1023	CODE:	1435	CODE:
1024	eio_cancel (req);	1436	eio_cancel (req);
1025		1437
1026	void	1438	void
1027	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1439	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1028	CODE:	1440	PPCODE:
		1441	{
		1442	if (GIMME_V != G_VOID)
		1443	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1444
		1445	if (items > 1)
		1446	{
		1447	SV *cb_cv =get_cb (callback);
		1448
1029	SvREFCNT_dec (req->callback);	1449	SvREFCNT_dec (req->callback);
1030	req->callback = newSVsv (callback);	1450	req->callback = SvREFCNT_inc (cb_cv);
		1451	}
		1452	}
1031		1453
1032	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1454	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1033		1455
1034	void	1456	void
1035	add (aio_req grp, ...)	1457	add (aio_req grp, ...)
…		…
1067	AV *av;	1489	AV *av;
1068		1490
1069	grp->errorno = errno;	1491	grp->errorno = errno;
1070		1492
1071	av = newAV ();	1493	av = newAV ();
		1494	av_extend (av, items - 1);
1072		1495
1073	for (i = 1; i < items; ++i )	1496	for (i = 1; i < items; ++i )
1074	av_push (av, newSVsv (ST (i)));	1497	av_push (av, newSVsv (ST (i)));
1075		1498
1076	SvREFCNT_dec (grp->sv1);	1499	SvREFCNT_dec (grp->sv1);
…		…
1090	void	1513	void
1091	feed (aio_req grp, SV *callback=&PL_sv_undef)	1514	feed (aio_req grp, SV *callback=&PL_sv_undef)
1092	CODE:	1515	CODE:
1093	{	1516	{
1094	SvREFCNT_dec (grp->sv2);	1517	SvREFCNT_dec (grp->sv2);
1095	grp->sv2 = newSVsv (callback);	1518	grp->sv2 = newSVsv (callback);
		1519	grp->feed = aio_grp_feed;
1096		1520
1097	if (grp->int2 <= 0)	1521	if (grp->int2 <= 0)
1098	grp->int2 = 2;	1522	grp->int2 = 2;
1099		1523
1100	eio_grp_limit (grp, grp->int2);	1524	eio_grp_limit (grp, grp->int2);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.125 by root, Thu Jun 19 09:05:43 2008 UTC vs. Revision 1.164 by root, Tue May 4 21:14:01 2010 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.125 by root, Thu Jun 19 09:05:43 2008 UTC vs.
Revision 1.164 by root, Tue May 4 21:14:01 2010 UTC