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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.120 by root, Sun May 11 19:17:09 2008 UTC vs.
Revision 1.166 by root, Sun May 9 20:43:28 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
…		…
65	# include <signal.h>	72	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent	73	# define EIO_STRUCT_DIRENT struct dirent
67		74
68	#endif	75	#endif
69		76
		77	/* perl stupidly overrides readdir and maybe others */
		78	/* with thread-unsafe versions, imagine that :( */
		79	#undef readdir
		80	#undef opendir
		81	#undef closedir
		82
70	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
71		84
72	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
73	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
74	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
75	#else	90	#else
		91	# define VAL64 NV
76	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
77	#endif	94	#endif
78		95
79	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
80	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 */
81		112
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV aio_stash, aio_req_stash, *aio_grp_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		114
85	#define EIO_COMMON \	115	#define EIO_REQ_MEMBERS \
86	SV *callback; \	116	SV *callback; \
87	SV sv1, sv2; \	117	SV sv1, sv2; \
88	STRLEN stroffset; \	118	STRLEN stroffset; \
89	SV *self	119	SV *self;
		120
		121	#define EIO_NO_WRAPPERS 1
90		122
91	#include "libeio/eio.h"	123	#include "libeio/eio.h"
		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
92		209
93	static int req_invoke (eio_req *req);	210	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	211	#define EIO_FINISH(req) req_invoke (req)
95	static void aio_grp_feed (eio_req *grp);
96	#define EIO_FEED(req) aio_grp_feed (req)
97	static void req_destroy (eio_req *grp);	212	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	213	#define EIO_DESTROY(req) req_destroy (req)
99		214
100	enum {	215	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
105		220
106	typedef eio_req *aio_req;	221	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	222	typedef eio_req *aio_req_ornot;
108		223
109	static SV *on_next_submit;	224	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	225	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	226	static int max_outstanding;
112		227
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	228	static s_epipe respipe;
114		229
115	static void req_destroy (aio_req req);	230	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	231	static void req_cancel (aio_req req);
117		232
118	static void want_poll (void)	233	static void want_poll (void)
119	{	234	{
120	/* write a dummy byte to the pipe so fh becomes ready */	235	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	236	s_epipe_signal (&respipe);
122	}	237	}
123		238
124	static void done_poll (void)	239	static void done_poll (void)
125	{	240	{
126	/* read any signals sent by the worker threads */	241	/* read any signals sent by the worker threads */
127	char buf [4];	242	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	243	}
131		244
132	/* must be called at most once */	245	/* must be called at most once */
133	static SV req_sv (aio_req req, const char klass)	246	static SV req_sv (aio_req req, HV stash)
134	{	247	{
135	if (!req->self)	248	if (!req->self)
136	{	249	{
137	req->self = (SV *)newHV ();	250	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	252	}
140		253
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	255	}
143		256
144	static aio_req SvAIO_REQ (SV *sv)	257	static aio_req SvAIO_REQ (SV *sv)
145	{	258	{
146	MAGIC *mg;	259	MAGIC *mg;
147		260
148	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")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	265	croak ("object of class IO::AIO::REQ expected");
150		266
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		268
153	return mg ? (aio_req)mg->mg_ptr : 0;	269	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	270	}
…		…
160	dSP;	276	dSP;
161		277
162	ENTER;	278	ENTER;
163	SAVETMPS;	279	SAVETMPS;
164	PUSHMARK (SP);	280	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	281	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	282	PUTBACK;
167	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);	283	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);
168	SPAGAIN;	284	SPAGAIN;
169	FREETMPS;	285	FREETMPS;
170	LEAVE;	286	LEAVE;
…		…
173		289
174	static void req_submit (eio_req *req)	290	static void req_submit (eio_req *req)
175	{	291	{
176	eio_submit (req);	292	eio_submit (req);
177		293
178	if (on_next_submit)	294	if (expect_false (on_next_submit))
179	{	295	{
180	dSP;	296	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	297	SV *cb = sv_2mortal (on_next_submit);
182		298
183	on_next_submit = 0;	299	on_next_submit = 0;
…		…
188	}	304	}
189	}	305	}
190		306
191	static int req_invoke (eio_req *req)	307	static int req_invoke (eio_req *req)
192	{	308	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	309	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	310	SvREADONLY_off (req->sv2);
197		311
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	312	if (!EIO_CANCELLED (req) && req->callback)
199	{	313	{
		314	dSP;
		315	static SV sv_result_cache; / caches the result integer SV */
		316	SV *sv_result;
		317
200	ENTER;	318	ENTER;
201	SAVETMPS;	319	SAVETMPS;
202	PUSHMARK (SP);	320	PUSHMARK (SP);
203	EXTEND (SP, 1);	321	EXTEND (SP, 1);
		322
		323	/* do not recreate the result IV from scratch each time */
		324	if (expect_true (sv_result_cache))
		325	{
		326	sv_result = sv_result_cache; sv_result_cache = 0;
		327	SvIV_set (sv_result, req->result);
		328	}
		329	else
		330	{
		331	sv_result = newSViv (req->result);
		332	SvREADONLY_on (sv_result);
		333	}
204		334
205	switch (req->type)	335	switch (req->type)
206	{	336	{
207	case EIO_READDIR:	337	case EIO_READDIR:
208	{	338	{
209	SV *rv = &PL_sv_undef;	339	SV *rv = &PL_sv_undef;
210		340
211	if (req->result >= 0)	341	if (req->result >= 0)
212	{	342	{
213	int i;	343	int i;
214	char *buf = req->ptr2;	344	char names = (char )req->ptr2;
		345	eio_dirent ent = (eio_dirent )req->ptr1; /* might be 0 */
215	AV *av = newAV ();	346	AV *av = newAV ();
216		347
217	av_extend (av, req->result - 1);	348	av_extend (av, req->result - 1);
218		349
219	for (i = 0; i < req->result; ++i)	350	for (i = 0; i < req->result; ++i)
220	{	351	{
221	SV *sv = newSVpv (buf, 0);	352	if (req->int1 & EIO_READDIR_DENTS)
		353	{
		354	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		355
		356	if (req->int1 & EIO_READDIR_CUSTOM2)
		357	{
		358	static SV sv_type [EIO_DT_MAX + 1]; / type sv cache */
		359	AV *avent = newAV ();
		360
		361	av_extend (avent, 2);
		362
		363	if (!sv_type [ent->type])
		364	{
		365	sv_type [ent->type] = newSViv (ent->type);
		366	SvREADONLY_on (sv_type [ent->type]);
		367	}
		368
		369	av_store (avent, 0, namesv);
		370	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		371	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		372
		373	av_store (av, i, newRV_noinc ((SV *)avent));
		374	}
		375	else
223	av_store (av, i, sv);	376	av_store (av, i, namesv);
		377
		378	++ent;
		379	}
		380	else
		381	{
		382	SV *name = newSVpv (names, 0);
		383	av_store (av, i, name);
224	buf += SvCUR (sv) + 1;	384	names += SvCUR (name) + 1;
		385	}
225	}	386	}
226		387
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	388	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	389	}
229		390
230	PUSHs (rv);	391	PUSHs (rv);
		392
		393	if (req->int1 & EIO_READDIR_CUSTOM1)
		394	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 \| EIO_READDIR_CUSTOM2))));
231	}	395	}
232	break;	396	break;
233		397
234	case EIO_OPEN:	398	case EIO_OPEN:
235	{	399	{
…		…
241	GV gv = (GV )sv_newmortal ();	405	GV gv = (GV )sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);	406	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);
243	char sym [64];	407	char sym [64];
244	int symlen;	408	int symlen;
245		409
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	410	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	411	gv_init (gv, aio_stash, sym, symlen, 0);
248		412
249	symlen = snprintf (	413	symlen = snprintf (
250	sym,	414	sym,
251	sizeof (sym),	415	sizeof (sym),
252	"%s&=%d",	416	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	417	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	418	(int)req->result
255	);	419	);
256		420
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	421	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	422	fh = (SV *)gv;
259	}	423	}
260		424
261	PUSHs (fh);	425	PUSHs (fh);
262	}	426	}
		427	break;
		428
		429	case EIO_STATVFS:
		430	case EIO_FSTATVFS:
		431	{
		432	SV *rv = &PL_sv_undef;
		433
		434	if (req->result >= 0)
		435	{
		436	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		437	HV *hv = newHV ();
		438
		439	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		440
		441	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		442	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		443	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		444	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		445	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		446	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		447	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		448	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		449	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		450	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		451	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		452	}
		453
		454	PUSHs (rv);
		455	}
		456
263	break;	457	break;
264		458
265	case EIO_GROUP:	459	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	460	req->int1 = 2; /* mark group as finished */
267		461
…		…
289	case EIO_LSTAT:	483	case EIO_LSTAT:
290	case EIO_FSTAT:	484	case EIO_FSTAT:
291	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	485	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
292	PL_laststatval = req->result;	486	PL_laststatval = req->result;
293	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);	487	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);
294	PUSHs (sv_2mortal (newSViv (req->result)));	488	PUSHs (sv_result);
295	break;	489	break;
296		490
297	case EIO_READ:	491	case EIO_READ:
		492	{
298	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	493	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
299	*SvEND (req->sv2) = 0;	494	*SvEND (req->sv2) = 0;
300	PUSHs (sv_2mortal (newSViv (req->result)));	495	SvPOK_only (req->sv2);
		496	SvSETMAGIC (req->sv2);
		497	PUSHs (sv_result);
		498	}
301	break;	499	break;
302		500
303	case EIO_DUP2:	501	case EIO_DUP2:
304	if (req->result > 0)	502	if (req->result > 0)
305	req->result = 0;	503	SvIV_set (sv_result, 0);
306	/* FALLTHROUGH */	504	/* FALLTHROUGH */
307		505
308	default:	506	default:
309	PUSHs (sv_2mortal (newSViv (req->result)));	507	PUSHs (sv_result);
310	break;	508	break;
311	}	509	}
312		510
313	errno = req->errorno;	511	errno = req->errorno;
314		512
315	PUTBACK;	513	PUTBACK;
316	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);	514	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);
317	SPAGAIN;	515	SPAGAIN;
		516
		517	if (expect_false (SvREFCNT (sv_result) != 1 \|\| sv_result_cache))
		518	SvREFCNT_dec (sv_result);
		519	else
		520	sv_result_cache = sv_result;
318		521
319	FREETMPS;	522	FREETMPS;
320	LEAVE;	523	LEAVE;
321		524
322	PUTBACK;	525	PUTBACK;
…		…
351	grp->sv2 = 0;	554	grp->sv2 = 0;
352		555
353	eio_grp_cancel (grp);	556	eio_grp_cancel (grp);
354	}	557	}
355		558
356	#ifdef USE_SOCKETS_AS_HANDLES
357	# define TO_SOCKET(x) (win32_get_osfhandle (x))
358	#else
359	# define TO_SOCKET(x) (x)
360	#endif
361
362	static void	559	static void
363	create_respipe (void)	560	create_respipe (void)
364	{	561	{
365	int old_readfd = respipe [0];
366
367	if (respipe [1] >= 0)
368	respipe_close (TO_SOCKET (respipe [1]));
369
370	#ifdef _WIN32
371	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
372	#else
373	if (pipe (respipe))	562	if (s_epipe_renew (&respipe))
374	#endif
375	croak ("unable to initialize result pipe");	563	croak ("IO::AIO: unable to initialize result pipe");
376
377	if (old_readfd >= 0)
378	{
379	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
380	croak ("unable to initialize result pipe(2)");
381
382	respipe_close (respipe [0]);
383	respipe [0] = old_readfd;
384	}
385
386	#ifdef _WIN32
387	int arg = 1;
388	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
389	\|\| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
390	#else
391	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
392	\|\| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
393	#endif
394	croak ("unable to initialize result pipe(3)");
395
396	respipe_osf [0] = TO_SOCKET (respipe [0]);
397	respipe_osf [1] = TO_SOCKET (respipe [1]);
398	}	564	}
399		565
400	static void poll_wait (void)	566	static void poll_wait (void)
401	{	567	{
402	fd_set rfd;
403
404	while (eio_nreqs ())	568	while (eio_nreqs ())
405	{	569	{
406	int size;	570	int size;
407		571
408	X_LOCK (reslock);	572	X_LOCK (reslock);
…		…
410	X_UNLOCK (reslock);	574	X_UNLOCK (reslock);
411		575
412	if (size)	576	if (size)
413	return;	577	return;
414		578
415	maybe_start_thread ();	579	etp_maybe_start_thread ();
416		580
417	FD_ZERO (&rfd);	581	s_epipe_wait (&respipe);
418	FD_SET (respipe [0], &rfd);
419
420	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421	}	582	}
422	}	583	}
423		584
424	static int poll_cb (void)	585	static int poll_cb (void)
425	{	586	{
426	int res;	587	for (;;)
427
428	do
429	{	588	{
430	res = eio_poll ();	589	int res = eio_poll ();
431		590
432	if (res > 0)	591	if (res > 0)
433	croak (0);	592	croak (0);
		593
		594	if (!max_outstanding \|\| max_outstanding > eio_nreqs ())
		595	return res;
		596
		597	poll_wait ();
434	}	598	}
435	while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437	return res;
438	}	599	}
439		600
440	static void atfork_child (void)	601	static void atfork_child (void)
441	{	602	{
442	create_respipe ();	603	create_respipe ();
443	}	604	}
444		605
		606	/*****************************************************************************/
		607
		608	#if !_POSIX_MAPPED_FILES
		609	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		610	# define munmap(addr,length) (errno = ENOSYS, -1)
		611	#endif
		612
		613	#define MMAP_MAGIC PERL_MAGIC_ext
		614
		615	static int
		616	mmap_free (pTHX_ SV sv, MAGIC mg)
		617	{
		618	int old_errno = errno;
		619	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		620	errno = old_errno;
		621
		622	mg->mg_obj = 0; /* just in case */
		623
		624	SvREADONLY_off (sv);
		625	SvCUR_set (sv, 0);
		626	SvLEN_set (sv, 0);
		627	SvPVX (sv) = 0;
		628	SvOK_off (sv);
		629
		630	return 0;
		631	}
		632
		633	static MGVTBL mmap_vtbl = {
		634	0, 0, 0, 0, mmap_free
		635	};
		636
		637	/*****************************************************************************/
		638
		639	static SV *
		640	get_cb (SV *cb_sv)
		641	{
		642	SvGETMAGIC (cb_sv);
		643	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		644	}
		645
445	#define dREQ \	646	#define dREQ \
		647	SV *cb_cv; \
446	aio_req req; \	648	aio_req req; \
447	int req_pri = next_pri; \	649	int req_pri = next_pri; \
448	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	650	next_pri = EIO_PRI_DEFAULT; \
449	\	651	\
450	if (SvOK (callback) && !SvROK (callback)) \	652	cb_cv = get_cb (callback); \
451	croak ("callback must be undef or of reference type"); \
452	\	653	\
453	Newz (0, req, 1, eio_req); \	654	Newz (0, req, 1, eio_req); \
454	if (!req) \	655	if (!req) \
455	croak ("out of memory during eio_req allocation"); \	656	croak ("out of memory during eio_req allocation"); \
456	\	657	\
457	req->callback = newSVsv (callback); \	658	req->callback = SvREFCNT_inc (cb_cv); \
458	req->pri = req_pri	659	req->pri = req_pri
459		660
460	#define REQ_SEND \	661	#define REQ_SEND \
		662	PUTBACK; \
461	req_submit (req); \	663	req_submit (req); \
		664	SPAGAIN; \
462	\	665	\
463	if (GIMME_V != G_VOID) \	666	if (GIMME_V != G_VOID) \
464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	667	XPUSHs (req_sv (req, aio_req_stash));
465		668
466	MODULE = IO::AIO PACKAGE = IO::AIO	669	MODULE = IO::AIO PACKAGE = IO::AIO
467		670
468	PROTOTYPES: ENABLE	671	PROTOTYPES: ENABLE
469		672
470	BOOT:	673	BOOT:
471	{	674	{
472	stash = gv_stashpv ("IO::AIO", 1);	675	static const struct {
473		676	const char *name;
474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	677	IV iv;
475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	678	} *civ, const_iv[] = {
476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	679	# define const_niv(name, value) { # name, (IV) value },
477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	680	# define const_iv(name) { # name, (IV) name },
478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	681	# define const_eio(name) { # name, (IV) EIO_ ## name },
		682	const_iv (EXDEV)
		683	const_iv (ENOSYS)
		684	const_iv (O_RDONLY)
		685	const_iv (O_WRONLY)
		686	const_iv (O_RDWR)
		687	const_iv (O_CREAT)
		688	const_iv (O_TRUNC)
		689	const_iv (O_EXCL)
		690	const_iv (O_APPEND)
479	#ifdef _WIN32	691	#ifndef _WIN32
480	X_MUTEX_CHECK (wrklock);	692	const_iv (S_IFIFO)
481	X_MUTEX_CHECK (reslock);
482	X_MUTEX_CHECK (reqlock);
483	X_MUTEX_CHECK (reqwait);
484	X_MUTEX_CHECK (preadwritelock);
485	X_MUTEX_CHECK (readdirlock);
486
487	X_COND_CHECK (reqwait);
488	#else
489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
490	#endif	693	#endif
		694	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		695	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		696	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		697	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		698	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		699	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
491		700
		701	const_iv (ST_RDONLY)
		702	const_iv (ST_NOSUID)
		703	const_iv (ST_NODEV)
		704	const_iv (ST_NOEXEC)
		705	const_iv (ST_SYNCHRONOUS)
		706	const_iv (ST_MANDLOCK)
		707	const_iv (ST_WRITE)
		708	const_iv (ST_APPEND)
		709	const_iv (ST_IMMUTABLE)
		710	const_iv (ST_NOATIME)
		711	const_iv (ST_NODIRATIME)
		712	const_iv (ST_RELATIME)
		713
		714	const_iv (PROT_EXEC)
		715	const_iv (PROT_NONE)
		716	const_iv (PROT_READ)
		717	const_iv (PROT_WRITE)
		718
		719	/const_iv (MAP_FIXED)/
		720	const_iv (MAP_PRIVATE)
		721	const_iv (MAP_SHARED)
		722	const_iv (MAP_ANONYMOUS)
		723
		724	/* linuxish */
		725	const_iv (MAP_HUGETLB)
		726	const_iv (MAP_LOCKED)
		727	const_iv (MAP_NORESERVE)
		728	const_iv (MAP_POPULATE)
		729	const_iv (MAP_NONBLOCK)
		730
		731	const_iv (MCL_FUTURE)
		732	const_iv (MCL_CURRENT)
		733
		734	const_eio (MS_ASYNC)
		735	const_eio (MS_INVALIDATE)
		736	const_eio (MS_SYNC)
		737
		738	const_eio (MT_MODIFY)
		739
		740	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		741	const_eio (SYNC_FILE_RANGE_WRITE)
		742	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		743
		744	const_eio (READDIR_DENTS)
		745	const_eio (READDIR_DIRS_FIRST)
		746	const_eio (READDIR_STAT_ORDER)
		747	const_eio (READDIR_FOUND_UNKNOWN)
		748
		749	const_eio (DT_UNKNOWN)
		750	const_eio (DT_FIFO)
		751	const_eio (DT_CHR)
		752	const_eio (DT_DIR)
		753	const_eio (DT_BLK)
		754	const_eio (DT_REG)
		755	const_eio (DT_LNK)
		756	const_eio (DT_SOCK)
		757	const_eio (DT_WHT)
		758	};
		759
		760	aio_stash = gv_stashpv ("IO::AIO" , 1);
		761	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		762	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		763
		764	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		765	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		766
		767	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		768
492	create_respipe ();	769	create_respipe ();
493		770
494	if (eio_init (want_poll, done_poll) < 0)	771	if (eio_init (want_poll, done_poll) < 0)
495	croak ("IO::AIO: unable to initialise eio library");	772	croak ("IO::AIO: unable to initialise eio library");
496		773
497	/* atfork child called in fifo order, so before eio's handler */	774	/* atfork child called in fifo order, so before eio's handler */
498	X_THREAD_ATFORK (0, 0, atfork_child);	775	X_THREAD_ATFORK (0, 0, atfork_child);
499	}	776	}
500		777
501	void	778	void
502	max_poll_reqs (int nreqs)	779	max_poll_reqs (int nreqs)
503	PROTOTYPE: $	780	PROTOTYPE: $
…		…
556	ALIAS:	833	ALIAS:
557	aio_fsync = EIO_FSYNC	834	aio_fsync = EIO_FSYNC
558	aio_fdatasync = EIO_FDATASYNC	835	aio_fdatasync = EIO_FDATASYNC
559	PPCODE:	836	PPCODE:
560	{	837	{
		838	int fd = s_fileno_croak (fh, 0);
561	dREQ;	839	dREQ;
562		840
563	req->type = ix;	841	req->type = ix;
564	req->sv1 = newSVsv (fh);	842	req->sv1 = newSVsv (fh);
565	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	843	req->int1 = fd;
		844
		845	REQ_SEND (req);
		846	}
		847
		848	void
		849	aio_sync_file_range (SV fh, off_t offset, size_t nbytes, UV flags, SV callback=&PL_sv_undef)
		850	PROTOTYPE: $$$$;$
		851	PPCODE:
		852	{
		853	int fd = s_fileno_croak (fh, 0);
		854	dREQ;
		855
		856	req->type = EIO_SYNC_FILE_RANGE;
		857	req->sv1 = newSVsv (fh);
		858	req->int1 = fd;
		859	req->offs = offset;
		860	req->size = nbytes;
		861	req->int2 = flags;
566		862
567	REQ_SEND (req);	863	REQ_SEND (req);
568	}	864	}
569		865
570	void	866	void
571	aio_close (SV fh, SV callback=&PL_sv_undef)	867	aio_close (SV fh, SV callback=&PL_sv_undef)
572	PROTOTYPE: $;$	868	PROTOTYPE: $;$
573	PPCODE:	869	PPCODE:
574	{	870	{
575	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	871	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		872	int fd = s_fileno_croak (fh, 0);
576	dREQ;	873	dREQ;
577		874
578	if (close_pipe < 0)	875	if (close_pipe < 0)
579	{	876	{
580	int pipefd [2];	877	int pipefd [2];
…		…
588	}	885	}
589		886
590	req->type = EIO_DUP2;	887	req->type = EIO_DUP2;
591	req->int1 = close_pipe;	888	req->int1 = close_pipe;
592	req->sv2 = newSVsv (fh);	889	req->sv2 = newSVsv (fh);
593	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	890	req->int2 = fd;
594		891
595	REQ_SEND (req);	892	REQ_SEND (req);
596	}	893	}
597		894
598	void	895	void
…		…
602	aio_write = EIO_WRITE	899	aio_write = EIO_WRITE
603	PROTOTYPE: $$$$$;$	900	PROTOTYPE: $$$$$;$
604	PPCODE:	901	PPCODE:
605	{	902	{
606	STRLEN svlen;	903	STRLEN svlen;
		904	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607	char *svptr = SvPVbyte (data, svlen);	905	char *svptr = SvPVbyte (data, svlen);
608	UV len = SvUV (length);	906	UV len = SvUV (length);
609
610	SvUPGRADE (data, SVt_PV);
611	SvPOK_on (data);
612		907
613	if (dataoffset < 0)	908	if (dataoffset < 0)
614	dataoffset += svlen;	909	dataoffset += svlen;
615		910
616	if (dataoffset < 0 \|\| dataoffset > svlen)	911	if (dataoffset < 0 \|\| dataoffset > svlen)
…		…
622	if (!SvOK (length) \|\| len + dataoffset > svlen)	917	if (!SvOK (length) \|\| len + dataoffset > svlen)
623	len = svlen - dataoffset;	918	len = svlen - dataoffset;
624	}	919	}
625	else	920	else
626	{	921	{
627	/* read: grow scalar as necessary */	922	/* read: check type and grow scalar as necessary */
		923	SvUPGRADE (data, SVt_PV);
628	svptr = SvGROW (data, len + dataoffset + 1);	924	svptr = SvGROW (data, len + dataoffset + 1);
629	}	925	}
630		926
631	if (len < 0)
632	croak ("length must not be negative");
633
634	{	927	{
635	dREQ;	928	dREQ;
636		929
637	req->type = ix;	930	req->type = ix;
638	req->sv1 = newSVsv (fh);	931	req->sv1 = newSVsv (fh);
639	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	932	req->int1 = fd;
640	: IoOFP (sv_2io (fh)));
641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	933	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642	req->size = len;	934	req->size = len;
643	req->sv2 = SvREFCNT_inc (data);	935	req->sv2 = SvREFCNT_inc (data);
644	req->ptr2 = (char *)svptr + dataoffset;	936	req->ptr2 = (char *)svptr + dataoffset;
645	req->stroffset = dataoffset;	937	req->stroffset = dataoffset;
…		…
668		960
669	REQ_SEND;	961	REQ_SEND;
670	}	962	}
671		963
672	void	964	void
673	aio_sendfile (SV out_fh, SV in_fh, SV in_offset, UV length, SV callback=&PL_sv_undef)	965	aio_sendfile (SV out_fh, SV in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
674	PROTOTYPE: $$$$;$	966	PROTOTYPE: $$$$;$
675	PPCODE:	967	PPCODE:
676	{	968	{
		969	int ifd = s_fileno_croak (in_fh , 0);
		970	int ofd = s_fileno_croak (out_fh, 1);
677	dREQ;	971	dREQ;
678		972
679	req->type = EIO_SENDFILE;	973	req->type = EIO_SENDFILE;
680	req->sv1 = newSVsv (out_fh);	974	req->sv1 = newSVsv (out_fh);
681	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	975	req->int1 = ofd;
682	req->sv2 = newSVsv (in_fh);	976	req->sv2 = newSVsv (in_fh);
683	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	977	req->int2 = ifd;
684	req->offs = SvVAL64 (in_offset);	978	req->offs = in_offset;
685	req->size = length;	979	req->size = length;
686		980
687	REQ_SEND;	981	REQ_SEND;
688	}	982	}
689		983
690	void	984	void
691	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)	985	aio_readahead (SV fh, off_t offset, size_t length, SV callback=&PL_sv_undef)
692	PROTOTYPE: $$$;$	986	PROTOTYPE: $$$;$
693	PPCODE:	987	PPCODE:
694	{	988	{
		989	int fd = s_fileno_croak (fh, 0);
695	dREQ;	990	dREQ;
696		991
697	req->type = EIO_READAHEAD;	992	req->type = EIO_READAHEAD;
698	req->sv1 = newSVsv (fh);	993	req->sv1 = newSVsv (fh);
699	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	994	req->int1 = fd;
700	req->offs = SvVAL64 (offset);	995	req->offs = offset;
701	req->size = length;	996	req->size = length;
702		997
703	REQ_SEND;	998	REQ_SEND;
704	}	999	}
705		1000
706	void	1001	void
707	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)	1002	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)
708	ALIAS:	1003	ALIAS:
709	aio_stat = EIO_STAT	1004	aio_stat = EIO_STAT
710	aio_lstat = EIO_LSTAT	1005	aio_lstat = EIO_LSTAT
		1006	aio_statvfs = EIO_STATVFS
711	PPCODE:	1007	PPCODE:
712	{	1008	{
713	dREQ;	1009	dREQ;
714		1010
715	req->sv1 = newSVsv (fh_or_path);	1011	req->sv1 = newSVsv (fh_or_path);
…		…
719	req->type = ix;	1015	req->type = ix;
720	req->ptr1 = SvPVbyte_nolen (req->sv1);	1016	req->ptr1 = SvPVbyte_nolen (req->sv1);
721	}	1017	}
722	else	1018	else
723	{	1019	{
724	req->type = EIO_FSTAT;	1020	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1021	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726	}	1022	}
727		1023
728	REQ_SEND;	1024	REQ_SEND;
729	}	1025	}
…		…
824		1120
825	REQ_SEND;	1121	REQ_SEND;
826	}	1122	}
827		1123
828	void	1124	void
		1125	aio_readdirx (SV8 pathname, IV flags, SV callback=&PL_sv_undef)
		1126	PPCODE:
		1127	{
		1128	dREQ;
		1129
		1130	req->type = EIO_READDIR;
		1131	req->sv1 = newSVsv (pathname);
		1132	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1133	req->int1 = flags \| EIO_READDIR_DENTS \| EIO_READDIR_CUSTOM1;
		1134
		1135	if (flags & EIO_READDIR_DENTS)
		1136	req->int1 \|= EIO_READDIR_CUSTOM2;
		1137
		1138	REQ_SEND;
		1139	}
		1140
		1141	void
829	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)	1142	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)
830	ALIAS:	1143	ALIAS:
831	aio_unlink = EIO_UNLINK	1144	aio_unlink = EIO_UNLINK
832	aio_rmdir = EIO_RMDIR	1145	aio_rmdir = EIO_RMDIR
833	aio_readdir = EIO_READDIR	1146	aio_readdir = EIO_READDIR
…		…
875		1188
876	REQ_SEND;	1189	REQ_SEND;
877	}	1190	}
878		1191
879	void	1192	void
		1193	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1194	ALIAS:
		1195	aio_mtouch = EIO_MTOUCH
		1196	aio_msync = EIO_MSYNC
		1197	PROTOTYPE: $$$$;$
		1198	PPCODE:
		1199	{
		1200	STRLEN svlen;
		1201	UV len = SvUV (length);
		1202	char *svptr = SvPVbyte (data, svlen);
		1203
		1204	if (offset < 0)
		1205	offset += svlen;
		1206
		1207	if (offset < 0 \|\| offset > svlen)
		1208	croak ("offset outside of scalar");
		1209
		1210	if (!SvOK (length) \|\| len + offset > svlen)
		1211	len = svlen - offset;
		1212
		1213	{
		1214	dREQ;
		1215
		1216	req->type = ix;
		1217	req->size = len;
		1218	req->sv2 = SvREFCNT_inc (data);
		1219	req->ptr2 = (char *)svptr + offset;
		1220	req->int1 = flags;
		1221
		1222	REQ_SEND;
		1223	}
		1224	}
		1225
		1226	void
880	aio_busy (double delay, SV *callback=&PL_sv_undef)	1227	aio_busy (double delay, SV *callback=&PL_sv_undef)
881	PPCODE:	1228	PPCODE:
882	{	1229	{
883	dREQ;	1230	dREQ;
884		1231
…		…
895	{	1242	{
896	dREQ;	1243	dREQ;
897		1244
898	req->type = EIO_GROUP;	1245	req->type = EIO_GROUP;
899		1246
900	eio_submit (req);	1247	req_submit (req);
901	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1248	XPUSHs (req_sv (req, aio_grp_stash));
902	}	1249	}
903		1250
904	void	1251	void
905	aio_nop (SV *callback=&PL_sv_undef)	1252	aio_nop (SV *callback=&PL_sv_undef)
906	ALIAS:	1253	ALIAS:
…		…
917		1264
918	int	1265	int
919	aioreq_pri (int pri = 0)	1266	aioreq_pri (int pri = 0)
920	PROTOTYPE: ;$	1267	PROTOTYPE: ;$
921	CODE:	1268	CODE:
922	RETVAL = next_pri - EIO_PRI_BIAS;	1269	RETVAL = next_pri;
923	if (items > 0)	1270	if (items > 0)
924	{	1271	{
925	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1272	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
926	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1273	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
927	next_pri = pri + EIO_PRI_BIAS;	1274	next_pri = pri;
928	}	1275	}
929	OUTPUT:	1276	OUTPUT:
930	RETVAL	1277	RETVAL
931		1278
932	void	1279	void
933	aioreq_nice (int nice = 0)	1280	aioreq_nice (int nice = 0)
934	CODE:	1281	CODE:
935	nice = next_pri - nice;	1282	nice = next_pri - nice;
936	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1283	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
937	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1284	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938	next_pri = nice + EIO_PRI_BIAS;	1285	next_pri = nice;
939		1286
940	void	1287	void
941	flush ()	1288	flush ()
942	PROTOTYPE:	1289	PROTOTYPE:
943	CODE:	1290	CODE:
…		…
958		1305
959	int	1306	int
960	poll_fileno()	1307	poll_fileno()
961	PROTOTYPE:	1308	PROTOTYPE:
962	CODE:	1309	CODE:
963	RETVAL = respipe [0];	1310	RETVAL = s_epipe_fd (&respipe);
964	OUTPUT:	1311	OUTPUT:
965	RETVAL	1312	RETVAL
966		1313
967	int	1314	int
968	poll_cb(...)	1315	poll_cb(...)
…		…
1004		1351
1005	int	1352	int
1006	nthreads()	1353	nthreads()
1007	PROTOTYPE:	1354	PROTOTYPE:
1008	CODE:	1355	CODE:
1009	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1356	RETVAL = eio_nthreads ();
1010	RETVAL = started;
1011	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012	OUTPUT:	1357	OUTPUT:
1013	RETVAL	1358	RETVAL
1014		1359
		1360	int
		1361	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1362	PROTOTYPE: $$$$
		1363	CODE:
		1364	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
		1365	RETVAL = posix_fadvise (fh, offset, length, advice);
		1366	#else
		1367	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
		1368	#endif
		1369	OUTPUT:
		1370	RETVAL
		1371
		1372	ssize_t
		1373	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1374	PROTOTYPE: $$$$
		1375	CODE:
		1376	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1377	OUTPUT:
		1378	RETVAL
		1379
		1380	void
		1381	mmap (SV scalar, size_t length, int prot, int flags, SV fh, off_t offset = 0)
		1382	PROTOTYPE: $$$$$;$
		1383	PPCODE:
		1384	sv_unmagic (scalar, MMAP_MAGIC);
		1385	{
		1386	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1387	void addr = (void )mmap (0, length, prot, flags, fd, offset);
		1388	if (addr == (void *)-1)
		1389	XSRETURN_NO;
		1390
		1391	/* we store the length in mg_obj, as namlen is I32 :/ */
		1392	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1393	->mg_obj = (SV *)length;
		1394
		1395	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1396	if (!(prot & PROT_WRITE))
		1397	SvREADONLY_on (scalar);
		1398
		1399	SvPVX (scalar) = (char *)addr;
		1400	SvCUR_set (scalar, length);
		1401	SvLEN_set (scalar, 0);
		1402	SvPOK_only (scalar);
		1403
		1404	XSRETURN_YES;
		1405	}
		1406
		1407	void
		1408	munmap (SV *scalar)
		1409	PROTOTYPE: $
		1410	CODE:
		1411	sv_unmagic (scalar, MMAP_MAGIC);
		1412
		1413	int
		1414	mlockall (int flags)
		1415	PROTOTYPE: $
		1416	CODE:
		1417	#if _POSIX_MEMLOCK
		1418	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
		1419	extern int mallopt (int, int);
		1420	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
		1421	#endif
		1422	mlockall (flags);
		1423	#else
		1424	RETVAL = -1;
		1425	errno = ENOSYS;
		1426	#endif
		1427	OUTPUT:
		1428	RETVAL
		1429
		1430	int
		1431	munlockall ()
		1432	PROTOTYPE:
		1433	CODE:
		1434	#if _POSIX_MEMLOCK
		1435	munlockall ();
		1436	#else
		1437	RETVAL = -1;
		1438	errno = ENOSYS;
		1439	#endif
		1440	OUTPUT:
		1441	RETVAL
		1442
1015	void _on_next_submit (SV *cb)	1443	void _on_next_submit (SV *cb)
1016	CODE:	1444	CODE:
1017	SvREFCNT_dec (on_next_submit);	1445	SvREFCNT_dec (on_next_submit);
1018	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1446	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1019		1447
…		…
1026	CODE:	1454	CODE:
1027	eio_cancel (req);	1455	eio_cancel (req);
1028		1456
1029	void	1457	void
1030	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1458	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031	CODE:	1459	PPCODE:
		1460	{
		1461	if (GIMME_V != G_VOID)
		1462	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1463
		1464	if (items > 1)
		1465	{
		1466	SV *cb_cv =get_cb (callback);
		1467
1032	SvREFCNT_dec (req->callback);	1468	SvREFCNT_dec (req->callback);
1033	req->callback = newSVsv (callback);	1469	req->callback = SvREFCNT_inc (cb_cv);
		1470	}
		1471	}
1034		1472
1035	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1473	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036		1474
1037	void	1475	void
1038	add (aio_req grp, ...)	1476	add (aio_req grp, ...)
…		…
1070	AV *av;	1508	AV *av;
1071		1509
1072	grp->errorno = errno;	1510	grp->errorno = errno;
1073		1511
1074	av = newAV ();	1512	av = newAV ();
		1513	av_extend (av, items - 1);
1075		1514
1076	for (i = 1; i < items; ++i )	1515	for (i = 1; i < items; ++i )
1077	av_push (av, newSVsv (ST (i)));	1516	av_push (av, newSVsv (ST (i)));
1078		1517
1079	SvREFCNT_dec (grp->sv1);	1518	SvREFCNT_dec (grp->sv1);
…		…
1093	void	1532	void
1094	feed (aio_req grp, SV *callback=&PL_sv_undef)	1533	feed (aio_req grp, SV *callback=&PL_sv_undef)
1095	CODE:	1534	CODE:
1096	{	1535	{
1097	SvREFCNT_dec (grp->sv2);	1536	SvREFCNT_dec (grp->sv2);
1098	grp->sv2 = newSVsv (callback);	1537	grp->sv2 = newSVsv (callback);
		1538	grp->feed = aio_grp_feed;
1099		1539
1100	if (grp->int2 <= 0)	1540	if (grp->int2 <= 0)
1101	grp->int2 = 2;	1541	grp->int2 = 2;
1102		1542
1103	eio_grp_limit (grp, grp->int2);	1543	eio_grp_limit (grp, grp->int2);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.120 by root, Sun May 11 19:17:09 2008 UTC vs. Revision 1.166 by root, Sun May 9 20:43:28 2010 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.120 by root, Sun May 11 19:17:09 2008 UTC vs.
Revision 1.166 by root, Sun May 9 20:43:28 2010 UTC