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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.119 by root, Sun May 11 19:11:05 2008 UTC vs.
Revision 1.179 by root, Fri Jan 7 21:47:15 2011 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_MEMLOCK_RANGE || _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;
90		120
		121	#define EIO_NO_WRAPPERS 1
		122
		123	#include "libeio/config.h"
91	#include "libeio/eio.h"	124	#include "libeio/eio.h"
		125
		126	#ifndef POSIX_FADV_NORMAL
		127	# define POSIX_FADV_NORMAL 0
		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	#if !HAVE_POSIX_FADVISE
		146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		147	#endif
		148
		149	#ifndef POSIX_MADV_NORMAL
		150	# define POSIX_MADV_NORMAL 0
		151	#endif
		152	#ifndef POSIX_MADV_SEQUENTIAL
		153	# define POSIX_MADV_SEQUENTIAL 0
		154	#endif
		155	#ifndef POSIX_MADV_RANDOM
		156	# define POSIX_MADV_RANDOM 0
		157	#endif
		158	#ifndef POSIX_MADV_WILLNEED
		159	# define POSIX_MADV_WILLNEED 0
		160	#endif
		161	#ifndef POSIX_MADV_DONTNEED
		162	# define POSIX_MADV_DONTNEED 0
		163	#endif
		164
		165	#if !HAVE_POSIX_MADVISE
		166	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		167	#endif
		168
		169	#ifndef PROT_NONE
		170	# define PROT_NONE 0
		171	#endif
		172	#ifndef PROT_READ
		173	# define PROT_READ 0
		174	#endif
		175	#ifndef PROT_WRITE
		176	# define PROT_READ 0
		177	#endif
		178	#ifndef PROT_EXEC
		179	# define PROT_EXEC 0
		180	#endif
		181
		182	#ifndef ST_NODEV
		183	# define ST_NODEV 0
		184	#endif
		185	#ifndef ST_NOEXEC
		186	# define ST_NOEXEC 0
		187	#endif
		188	#ifndef ST_SYNCHRONOUS
		189	# define ST_SYNCHRONOUS 0
		190	#endif
		191	#ifndef ST_MANDLOCK
		192	# define ST_MANDLOCK 0
		193	#endif
		194	#ifndef ST_WRITE
		195	# define ST_WRITE 0
		196	#endif
		197	#ifndef ST_APPEND
		198	# define ST_APPEND 0
		199	#endif
		200	#ifndef ST_IMMUTABLE
		201	# define ST_IMMUTABLE 0
		202	#endif
		203	#ifndef ST_NOATIME
		204	# define ST_NOATIME 0
		205	#endif
		206	#ifndef ST_NODIRATIME
		207	# define ST_NODIRATIME 0
		208	#endif
		209	#ifndef ST_RELATIME
		210	# define ST_RELATIME 0
		211	#endif
		212
		213	#ifndef MAP_ANONYMOUS
		214	# ifdef MAP_ANON
		215	# define MAP_ANONYMOUS MAP_ANON
		216	# else
		217	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		218	# endif
		219	#endif
		220	#ifndef MAP_HUGETLB
		221	# define MAP_HUGETLB 0
		222	#endif
		223	#ifndef MAP_LOCKED
		224	# define MAP_LOCKED 0
		225	#endif
		226	#ifndef MAP_NORESERVE
		227	# define MAP_NORESERVE 0
		228	#endif
		229	#ifndef MAP_POPULATE
		230	# define MAP_POPULATE 0
		231	#endif
		232	#ifndef MAP_NONBLOCK
		233	# define MAP_NONBLOCK 0
		234	#endif
		235
		236	#ifndef PAGESIZE
		237	# define PAGESIZE sysconf (_SC_PAGESIZE)
		238	#endif
92		239
93	static int req_invoke (eio_req *req);	240	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	241	#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);	242	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	243	#define EIO_DESTROY(req) req_destroy (req)
99		244
100	enum {	245	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	246	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
105		250
106	typedef eio_req *aio_req;	251	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	252	typedef eio_req *aio_req_ornot;
108		253
109	static SV *on_next_submit;	254	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	255	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	256	static int max_outstanding;
112		257
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	258	static s_epipe respipe;
114		259
115	static void req_destroy (aio_req req);	260	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	261	static void req_cancel (aio_req req);
117		262
118	static void want_poll (void)	263	static void want_poll (void)
119	{	264	{
120	/* write a dummy byte to the pipe so fh becomes ready */	265	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	266	s_epipe_signal (&respipe);
122	}	267	}
123		268
124	static void done_poll (void)	269	static void done_poll (void)
125	{	270	{
126	/* read any signals sent by the worker threads */	271	/* read any signals sent by the worker threads */
127	char buf [4];	272	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	273	}
131		274
132	/* must be called at most once */	275	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	276	static SV *req_sv (aio_req req, HV *stash)
134	{	277	{
135	if (!req->self)	278	if (!req->self)
136	{	279	{
137	req->self = (SV *)newHV ();	280	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	281	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	282	}
140		283
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	284	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	285	}
143		286
144	static aio_req SvAIO_REQ (SV *sv)	287	static aio_req SvAIO_REQ (SV *sv)
145	{	288	{
146	MAGIC *mg;	289	MAGIC *mg;
147		290
148	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	291	if (!SvROK (sv)
		292	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		293	&& SvSTASH (SvRV (sv)) != aio_req_stash
		294	&& !sv_derived_from (sv, "IO::AIO::REQ")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	295	croak ("object of class IO::AIO::REQ expected");
150		296
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	297	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		298
153	return mg ? (aio_req)mg->mg_ptr : 0;	299	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	300	}
…		…
160	dSP;	306	dSP;
161		307
162	ENTER;	308	ENTER;
163	SAVETMPS;	309	SAVETMPS;
164	PUSHMARK (SP);	310	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	311	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	312	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	313	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	314	SPAGAIN;
169	FREETMPS;	315	FREETMPS;
170	LEAVE;	316	LEAVE;
…		…
173		319
174	static void req_submit (eio_req *req)	320	static void req_submit (eio_req *req)
175	{	321	{
176	eio_submit (req);	322	eio_submit (req);
177		323
178	if (on_next_submit)	324	if (expect_false (on_next_submit))
179	{	325	{
180	dSP;	326	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	327	SV *cb = sv_2mortal (on_next_submit);
182		328
183	on_next_submit = 0;	329	on_next_submit = 0;
…		…
188	}	334	}
189	}	335	}
190		336
191	static int req_invoke (eio_req *req)	337	static int req_invoke (eio_req *req)
192	{	338	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	339	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	340	SvREADONLY_off (req->sv2);
197		341
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	342	if (!EIO_CANCELLED (req) && req->callback)
199	{	343	{
		344	dSP;
		345	static SV *sv_result_cache; /* caches the result integer SV */
		346	SV *sv_result;
		347
200	ENTER;	348	ENTER;
201	SAVETMPS;	349	SAVETMPS;
202	PUSHMARK (SP);	350	PUSHMARK (SP);
203	EXTEND (SP, 1);	351	EXTEND (SP, 1);
		352
		353	/* do not recreate the result IV from scratch each time */
		354	if (expect_true (sv_result_cache))
		355	{
		356	sv_result = sv_result_cache; sv_result_cache = 0;
		357	SvIV_set (sv_result, req->result);
		358	SvIOK_only (sv_result);
		359	}
		360	else
		361	{
		362	sv_result = newSViv (req->result);
		363	SvREADONLY_on (sv_result);
		364	}
204		365
205	switch (req->type)	366	switch (req->type)
206	{	367	{
207	case EIO_READDIR:	368	case EIO_READDIR:
208	{	369	{
209	SV *rv = &PL_sv_undef;	370	SV *rv = &PL_sv_undef;
210		371
211	if (req->result >= 0)	372	if (req->result >= 0)
212	{	373	{
213	int i;	374	int i;
214	char *buf = req->ptr2;	375	char *names = (char *)req->ptr2;
		376	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215	AV *av = newAV ();	377	AV *av = newAV ();
216		378
217	av_extend (av, req->result - 1);	379	av_extend (av, req->result - 1);
218		380
219	for (i = 0; i < req->result; ++i)	381	for (i = 0; i < req->result; ++i)
220	{	382	{
221	SV *sv = newSVpv (buf, 0);	383	if (req->int1 & EIO_READDIR_DENTS)
		384	{
		385	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		386
		387	if (req->int1 & EIO_READDIR_CUSTOM2)
		388	{
		389	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		390	AV *avent = newAV ();
		391
		392	av_extend (avent, 2);
		393
		394	if (!sv_type [ent->type])
		395	{
		396	sv_type [ent->type] = newSViv (ent->type);
		397	SvREADONLY_on (sv_type [ent->type]);
		398	}
		399
		400	av_store (avent, 0, namesv);
		401	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		402	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		403
		404	av_store (av, i, newRV_noinc ((SV *)avent));
		405	}
		406	else
223	av_store (av, i, sv);	407	av_store (av, i, namesv);
		408
		409	++ent;
		410	}
		411	else
		412	{
		413	SV *name = newSVpv (names, 0);
		414	av_store (av, i, name);
224	buf += SvCUR (sv) + 1;	415	names += SvCUR (name) + 1;
		416	}
225	}	417	}
226		418
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	419	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	420	}
229		421
230	PUSHs (rv);	422	PUSHs (rv);
		423
		424	if (req->int1 & EIO_READDIR_CUSTOM1)
		425	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
231	}	426	}
232	break;	427	break;
233		428
234	case EIO_OPEN:	429	case EIO_OPEN:
235	{	430	{
…		…
241	GV *gv = (GV *)sv_newmortal ();	436	GV *gv = (GV *)sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	437	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243	char sym [64];	438	char sym [64];
244	int symlen;	439	int symlen;
245		440
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	441	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	442	gv_init (gv, aio_stash, sym, symlen, 0);
248		443
249	symlen = snprintf (	444	symlen = snprintf (
250	sym,	445	sym,
251	sizeof (sym),	446	sizeof (sym),
252	"%s&=%d",	447	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	448	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	449	(int)req->result
255	);	450	);
256		451
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	452	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	453	fh = (SV *)gv;
259	}	454	}
260		455
261	PUSHs (fh);	456	PUSHs (fh);
262	}	457	}
		458	break;
		459
		460	case EIO_STATVFS:
		461	case EIO_FSTATVFS:
		462	{
		463	SV *rv = &PL_sv_undef;
		464
		465	if (req->result >= 0)
		466	{
		467	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		468	HV *hv = newHV ();
		469
		470	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		471
		472	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		473	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		474	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		475	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		476	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		477	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		478	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		479	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		480	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		481	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		482	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		483	}
		484
		485	PUSHs (rv);
		486	}
		487
263	break;	488	break;
264		489
265	case EIO_GROUP:	490	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	491	req->int1 = 2; /* mark group as finished */
267		492
…		…
289	case EIO_LSTAT:	514	case EIO_LSTAT:
290	case EIO_FSTAT:	515	case EIO_FSTAT:
291	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	516	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
292	PL_laststatval = req->result;	517	PL_laststatval = req->result;
293	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	518	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
294	PUSHs (sv_2mortal (newSViv (req->result)));	519	PUSHs (sv_result);
295	break;	520	break;
296		521
297	case EIO_READ:	522	case EIO_READ:
		523	{
298	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	524	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
299	*SvEND (req->sv2) = 0;	525	*SvEND (req->sv2) = 0;
300	PUSHs (sv_2mortal (newSViv (req->result)));	526	SvPOK_only (req->sv2);
		527	SvSETMAGIC (req->sv2);
		528	PUSHs (sv_result);
		529	}
301	break;	530	break;
302		531
303	case EIO_DUP2:	532	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
304	if (req->result > 0)	533	if (req->result > 0)
305	req->result = 0;	534	SvIV_set (sv_result, 0);
306	/* FALLTHROUGH */	535	/* FALLTHROUGH */
307		536
308	default:	537	default:
309	PUSHs (sv_2mortal (newSViv (req->result)));	538	PUSHs (sv_result);
310	break;	539	break;
311	}	540	}
312		541
313	errno = req->errorno;	542	errno = req->errorno;
314		543
315	PUTBACK;	544	PUTBACK;
316	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	545	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
317	SPAGAIN;	546	SPAGAIN;
		547
		548	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		549	SvREFCNT_dec (sv_result);
		550	else
		551	sv_result_cache = sv_result;
318		552
319	FREETMPS;	553	FREETMPS;
320	LEAVE;	554	LEAVE;
321		555
322	PUTBACK;	556	PUTBACK;
…		…
351	grp->sv2 = 0;	585	grp->sv2 = 0;
352		586
353	eio_grp_cancel (grp);	587	eio_grp_cancel (grp);
354	}	588	}
355		589
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	590	static void
363	create_respipe (void)	591	create_respipe (void)
364	{	592	{
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))	593	if (s_epipe_renew (&respipe))
374	#endif
375	croak ("unable to initialize result pipe");	594	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	}	595	}
399		596
400	static void poll_wait (void)	597	static void poll_wait (void)
401	{	598	{
402	fd_set rfd;
403
404	while (eio_nreqs ())	599	while (eio_nreqs ())
405	{	600	{
406	int size;	601	int size;
407		602
408	X_LOCK (reslock);	603	X_LOCK (reslock);
…		…
410	X_UNLOCK (reslock);	605	X_UNLOCK (reslock);
411		606
412	if (size)	607	if (size)
413	return;	608	return;
414		609
415	maybe_start_thread ();	610	etp_maybe_start_thread ();
416		611
417	FD_ZERO (&rfd);	612	s_epipe_wait (&respipe);
418	FD_SET (respipe [0], &rfd);
419
420	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421	}	613	}
422	}	614	}
423		615
424	static int poll_cb (void)	616	static int poll_cb (void)
425	{	617	{
426	int res;	618	for (;;)
427
428	do
429	{	619	{
430	res = eio_poll ();	620	int res = eio_poll ();
431		621
432	if (res > 0)	622	if (res > 0)
433	croak (0);	623	croak (0);
		624
		625	if (!max_outstanding || max_outstanding > eio_nreqs ())
		626	return res;
		627
		628	poll_wait ();
434	}	629	}
435	while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437	return res;
438	}	630	}
439		631
440	static void atfork_child (void)	632	static void atfork_child (void)
441	{	633	{
442	create_respipe ();	634	create_respipe ();
443	}	635	}
444		636
		637	/*****************************************************************************/
		638
		639	#if !_POSIX_MAPPED_FILES
		640	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		641	# define munmap(addr,length) (errno = ENOSYS, -1)
		642	#endif
		643
		644	#if !_POSIX_MEMORY_PROTECTION
		645	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		646	# define PROT_NONE 0
		647	# define PROT_WRITE 0
		648	# define MAP_PRIVATE 0
		649	# define MAP_SHARED 0
		650	# define MAP_FIXED 0
		651	#endif
		652
		653	#define MMAP_MAGIC PERL_MAGIC_ext
		654
		655	static int
		656	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		657	{
		658	int old_errno = errno;
		659	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		660	errno = old_errno;
		661
		662	mg->mg_obj = 0; /* just in case */
		663
		664	SvREADONLY_off (sv);
		665
		666	if (SvPVX (sv) != mg->mg_ptr)
		667	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		668
		669	SvCUR_set (sv, 0);
		670	SvPVX (sv) = 0;
		671	SvOK_off (sv);
		672
		673	return 0;
		674	}
		675
		676	static MGVTBL mmap_vtbl = {
		677	0, 0, 0, 0, mmap_free
		678	};
		679
		680	/*****************************************************************************/
		681
		682	static SV *
		683	get_cb (SV *cb_sv)
		684	{
		685	SvGETMAGIC (cb_sv);
		686	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		687	}
		688
445	#define dREQ \	689	#define dREQ \
		690	SV *cb_cv; \
446	aio_req req; \	691	aio_req req; \
447	int req_pri = next_pri; \	692	int req_pri = next_pri; \
448	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	693	next_pri = EIO_PRI_DEFAULT; \
449	\	694	\
450	if (SvOK (callback) && !SvROK (callback)) \	695	cb_cv = get_cb (callback); \
451	croak ("callback must be undef or of reference type"); \
452	\	696	\
453	Newz (0, req, 1, eio_req); \	697	Newz (0, req, 1, eio_req); \
454	if (!req) \	698	if (!req) \
455	croak ("out of memory during eio_req allocation"); \	699	croak ("out of memory during eio_req allocation"); \
456	\	700	\
457	req->callback = newSVsv (callback); \	701	req->callback = SvREFCNT_inc (cb_cv); \
458	req->pri = req_pri	702	req->pri = req_pri
459		703
460	#define REQ_SEND \	704	#define REQ_SEND \
		705	PUTBACK; \
461	req_submit (req); \	706	req_submit (req); \
		707	SPAGAIN; \
462	\	708	\
463	if (GIMME_V != G_VOID) \	709	if (GIMME_V != G_VOID) \
464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	710	XPUSHs (req_sv (req, aio_req_stash));
465		711
466	MODULE = IO::AIO PACKAGE = IO::AIO	712	MODULE = IO::AIO PACKAGE = IO::AIO
467		713
468	PROTOTYPES: ENABLE	714	PROTOTYPES: ENABLE
469		715
470	BOOT:	716	BOOT:
471	{	717	{
472	stash = gv_stashpv ("IO::AIO", 1);	718	static const struct {
473		719	const char *name;
474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	720	IV iv;
475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	721	} *civ, const_iv[] = {
476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	722	# define const_niv(name, value) { # name, (IV) value },
477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	723	# define const_iv(name) { # name, (IV) name },
478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	724	# define const_eio(name) { # name, (IV) EIO_ ## name },
		725	const_iv (EXDEV)
		726	const_iv (ENOSYS)
		727	const_iv (O_RDONLY)
		728	const_iv (O_WRONLY)
		729	const_iv (O_RDWR)
		730	const_iv (O_CREAT)
		731	const_iv (O_TRUNC)
		732	const_iv (O_EXCL)
		733	const_iv (O_APPEND)
479	#ifdef _WIN32	734	#ifndef _WIN32
480	X_MUTEX_CHECK (wrklock);	735	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	736	#endif
		737	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		738	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		739	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		740	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		741	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		742	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
491		743
		744	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		745	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		746	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		747	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		748	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		749
		750	const_iv (ST_RDONLY)
		751	const_iv (ST_NOSUID)
		752	const_iv (ST_NODEV)
		753	const_iv (ST_NOEXEC)
		754	const_iv (ST_SYNCHRONOUS)
		755	const_iv (ST_MANDLOCK)
		756	const_iv (ST_WRITE)
		757	const_iv (ST_APPEND)
		758	const_iv (ST_IMMUTABLE)
		759	const_iv (ST_NOATIME)
		760	const_iv (ST_NODIRATIME)
		761	const_iv (ST_RELATIME)
		762
		763	const_iv (PROT_NONE)
		764	const_iv (PROT_EXEC)
		765	const_iv (PROT_READ)
		766	const_iv (PROT_WRITE)
		767
		768	/*const_iv (MAP_FIXED)*/
		769	const_iv (MAP_PRIVATE)
		770	const_iv (MAP_SHARED)
		771	const_iv (MAP_ANONYMOUS)
		772
		773	/* linuxish */
		774	const_iv (MAP_HUGETLB)
		775	const_iv (MAP_LOCKED)
		776	const_iv (MAP_NORESERVE)
		777	const_iv (MAP_POPULATE)
		778	const_iv (MAP_NONBLOCK)
		779
		780	const_eio (MCL_FUTURE)
		781	const_eio (MCL_CURRENT)
		782
		783	const_eio (MS_ASYNC)
		784	const_eio (MS_INVALIDATE)
		785	const_eio (MS_SYNC)
		786
		787	const_eio (MT_MODIFY)
		788
		789	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		790	const_eio (SYNC_FILE_RANGE_WRITE)
		791	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		792
		793	const_eio (READDIR_DENTS)
		794	const_eio (READDIR_DIRS_FIRST)
		795	const_eio (READDIR_STAT_ORDER)
		796	const_eio (READDIR_FOUND_UNKNOWN)
		797
		798	const_eio (DT_UNKNOWN)
		799	const_eio (DT_FIFO)
		800	const_eio (DT_CHR)
		801	const_eio (DT_DIR)
		802	const_eio (DT_BLK)
		803	const_eio (DT_REG)
		804	const_eio (DT_LNK)
		805	const_eio (DT_SOCK)
		806	const_eio (DT_WHT)
		807	};
		808
		809	aio_stash = gv_stashpv ("IO::AIO" , 1);
		810	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		811	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		812
		813	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		814	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		815
		816	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		817
492	create_respipe ();	818	create_respipe ();
493		819
494	if (eio_init (want_poll, done_poll) < 0)	820	if (eio_init (want_poll, done_poll) < 0)
495	croak ("IO::AIO: unable to initialise eio library");	821	croak ("IO::AIO: unable to initialise eio library");
496		822
497	/* atfork child called in fifo order, so before eio's handler */	823	/* atfork child called in fifo order, so before eio's handler */
498	X_THREAD_ATFORK (0, 0, atfork_child);	824	X_THREAD_ATFORK (0, 0, atfork_child);
499	}	825	}
500		826
501	void	827	void
502	max_poll_reqs (int nreqs)	828	max_poll_reqs (int nreqs)
503	PROTOTYPE: $	829	PROTOTYPE: $
…		…
534	CODE:	860	CODE:
535	max_outstanding = maxreqs;	861	max_outstanding = maxreqs;
536		862
537	void	863	void
538	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	864	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $$$;$
540	PPCODE:	865	PPCODE:
541	{	866	{
542	dREQ;	867	dREQ;
543		868
544	req->type = EIO_OPEN;	869	req->type = EIO_OPEN;
…		…
550	REQ_SEND;	875	REQ_SEND;
551	}	876	}
552		877
553	void	878	void
554	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	879	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
555	PROTOTYPE: $;$
556	ALIAS:	880	ALIAS:
557	aio_fsync = EIO_FSYNC	881	aio_fsync = EIO_FSYNC
558	aio_fdatasync = EIO_FDATASYNC	882	aio_fdatasync = EIO_FDATASYNC
559	PPCODE:	883	PPCODE:
560	{	884	{
		885	int fd = s_fileno_croak (fh, 0);
561	dREQ;	886	dREQ;
562		887
563	req->type = ix;	888	req->type = ix;
564	req->sv1 = newSVsv (fh);	889	req->sv1 = newSVsv (fh);
565	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	890	req->int1 = fd;
566		891
567	REQ_SEND (req);	892	REQ_SEND (req);
568	}	893	}
569		894
570	void	895	void
		896	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		897	PPCODE:
		898	{
		899	int fd = s_fileno_croak (fh, 0);
		900	dREQ;
		901
		902	req->type = EIO_SYNC_FILE_RANGE;
		903	req->sv1 = newSVsv (fh);
		904	req->int1 = fd;
		905	req->offs = offset;
		906	req->size = nbytes;
		907	req->int2 = flags;
		908
		909	REQ_SEND (req);
		910	}
		911
		912	void
571	aio_close (SV *fh, SV *callback=&PL_sv_undef)	913	aio_close (SV *fh, SV *callback=&PL_sv_undef)
572	PROTOTYPE: $;$
573	PPCODE:	914	PPCODE:
574	{	915	{
575	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	916	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		917	int fd = s_fileno_croak (fh, 0);
576	dREQ;	918	dREQ;
577		919
578	if (close_pipe < 0)	920	if (close_pipe < 0)
579	{	921	{
580	int pipefd [2];	922	int pipefd [2];
…		…
588	}	930	}
589		931
590	req->type = EIO_DUP2;	932	req->type = EIO_DUP2;
591	req->int1 = close_pipe;	933	req->int1 = close_pipe;
592	req->sv2 = newSVsv (fh);	934	req->sv2 = newSVsv (fh);
593	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	935	req->int2 = fd;
594		936
595	REQ_SEND (req);	937	REQ_SEND (req);
596	}	938	}
597		939
598	void	940	void
599	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	941	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
600	ALIAS:	942	ALIAS:
601	aio_read = EIO_READ	943	aio_read = EIO_READ
602	aio_write = EIO_WRITE	944	aio_write = EIO_WRITE
603	PROTOTYPE: $$$$$;$
604	PPCODE:	945	PPCODE:
605	{	946	{
606	STRLEN svlen;	947	STRLEN svlen;
		948	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607	char *svptr = SvPVbyte (data, svlen);	949	char *svptr = SvPVbyte (data, svlen);
608	UV len = SvUV (length);	950	UV len = SvUV (length);
609
610	SvUPGRADE (data, SVt_PV);
611	SvPOK_on (data);
612		951
613	if (dataoffset < 0)	952	if (dataoffset < 0)
614	dataoffset += svlen;	953	dataoffset += svlen;
615		954
616	if (dataoffset < 0 || dataoffset > svlen)	955	if (dataoffset < 0 || dataoffset > svlen)
…		…
622	if (!SvOK (length) || len + dataoffset > svlen)	961	if (!SvOK (length) || len + dataoffset > svlen)
623	len = svlen - dataoffset;	962	len = svlen - dataoffset;
624	}	963	}
625	else	964	else
626	{	965	{
627	/* read: grow scalar as necessary */	966	/* read: check type and grow scalar as necessary */
		967	SvUPGRADE (data, SVt_PV);
628	svptr = SvGROW (data, len + dataoffset + 1);	968	svptr = SvGROW (data, len + dataoffset + 1);
629	}	969	}
630		970
631	if (len < 0)
632	croak ("length must not be negative");
633
634	{	971	{
635	dREQ;	972	dREQ;
636		973
637	req->type = ix;	974	req->type = ix;
638	req->sv1 = newSVsv (fh);	975	req->sv1 = newSVsv (fh);
639	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	976	req->int1 = fd;
640	: IoOFP (sv_2io (fh)));
641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	977	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642	req->size = len;	978	req->size = len;
643	req->sv2 = SvREFCNT_inc (data);	979	req->sv2 = SvREFCNT_inc (data);
644	req->ptr2 = (char *)svptr + dataoffset;	980	req->ptr2 = (char *)svptr + dataoffset;
645	req->stroffset = dataoffset;	981	req->stroffset = dataoffset;
…		…
654	}	990	}
655	}	991	}
656		992
657	void	993	void
658	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	994	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
659	PROTOTYPE: $$;$
660	PPCODE:	995	PPCODE:
661	{	996	{
662	SV *data;	997	SV *data;
663	dREQ;	998	dREQ;
664		999
…		…
668		1003
669	REQ_SEND;	1004	REQ_SEND;
670	}	1005	}
671		1006
672	void	1007	void
673	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1008	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
674	PROTOTYPE: $$$$;$
675	PPCODE:	1009	PPCODE:
676	{	1010	{
		1011	int ifd = s_fileno_croak (in_fh , 0);
		1012	int ofd = s_fileno_croak (out_fh, 1);
677	dREQ;	1013	dREQ;
678		1014
679	req->type = EIO_SENDFILE;	1015	req->type = EIO_SENDFILE;
680	req->sv1 = newSVsv (out_fh);	1016	req->sv1 = newSVsv (out_fh);
681	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1017	req->int1 = ofd;
682	req->sv2 = newSVsv (in_fh);	1018	req->sv2 = newSVsv (in_fh);
683	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1019	req->int2 = ifd;
684	req->offs = SvVAL64 (in_offset);	1020	req->offs = in_offset;
685	req->size = length;	1021	req->size = length;
686		1022
687	REQ_SEND;	1023	REQ_SEND;
688	}	1024	}
689		1025
690	void	1026	void
691	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1027	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
692	PROTOTYPE: $$$;$
693	PPCODE:	1028	PPCODE:
694	{	1029	{
		1030	int fd = s_fileno_croak (fh, 0);
695	dREQ;	1031	dREQ;
696		1032
697	req->type = EIO_READAHEAD;	1033	req->type = EIO_READAHEAD;
698	req->sv1 = newSVsv (fh);	1034	req->sv1 = newSVsv (fh);
699	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1035	req->int1 = fd;
700	req->offs = SvVAL64 (offset);	1036	req->offs = offset;
701	req->size = length;	1037	req->size = length;
702		1038
703	REQ_SEND;	1039	REQ_SEND;
704	}	1040	}
705		1041
706	void	1042	void
707	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1043	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
708	ALIAS:	1044	ALIAS:
709	aio_stat = EIO_STAT	1045	aio_stat = EIO_STAT
710	aio_lstat = EIO_LSTAT	1046	aio_lstat = EIO_LSTAT
		1047	aio_statvfs = EIO_STATVFS
711	PPCODE:	1048	PPCODE:
712	{	1049	{
713	dREQ;	1050	dREQ;
714		1051
715	req->sv1 = newSVsv (fh_or_path);	1052	req->sv1 = newSVsv (fh_or_path);
…		…
719	req->type = ix;	1056	req->type = ix;
720	req->ptr1 = SvPVbyte_nolen (req->sv1);	1057	req->ptr1 = SvPVbyte_nolen (req->sv1);
721	}	1058	}
722	else	1059	else
723	{	1060	{
724	req->type = EIO_FSTAT;	1061	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1062	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726	}	1063	}
727		1064
728	REQ_SEND;	1065	REQ_SEND;
729	}	1066	}
…		…
787	req->int2 = mode;	1124	req->int2 = mode;
788	req->sv1 = newSVsv (fh_or_path);	1125	req->sv1 = newSVsv (fh_or_path);
789		1126
790	if (SvPOK (req->sv1))	1127	if (SvPOK (req->sv1))
791	{	1128	{
792	req->type = EIO_FCHMOD;	1129	req->type = ix;
793	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1130	req->ptr1 = SvPVbyte_nolen (req->sv1);
794	}	1131	}
795	else	1132	else
796	{	1133	{
797	req->type = ix;	1134	req->type = EIO_FCHMOD;
798	req->ptr1 = SvPVbyte_nolen (req->sv1);	1135	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
799	}	1136	}
800		1137
801	REQ_SEND;	1138	REQ_SEND;
802	}	1139	}
803		1140
…		…
824		1161
825	REQ_SEND;	1162	REQ_SEND;
826	}	1163	}
827		1164
828	void	1165	void
		1166	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1167	PPCODE:
		1168	{
		1169	dREQ;
		1170
		1171	req->type = EIO_READDIR;
		1172	req->sv1 = newSVsv (pathname);
		1173	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1174	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1175
		1176	if (flags & EIO_READDIR_DENTS)
		1177	req->int1 |= EIO_READDIR_CUSTOM2;
		1178
		1179	REQ_SEND;
		1180	}
		1181
		1182	void
829	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1183	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
830	ALIAS:	1184	ALIAS:
831	aio_unlink = EIO_UNLINK	1185	aio_unlink = EIO_UNLINK
832	aio_rmdir = EIO_RMDIR	1186	aio_rmdir = EIO_RMDIR
833	aio_readdir = EIO_READDIR	1187	aio_readdir = EIO_READDIR
…		…
875		1229
876	REQ_SEND;	1230	REQ_SEND;
877	}	1231	}
878		1232
879	void	1233	void
		1234	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1235	ALIAS:
		1236	aio_mtouch = EIO_MTOUCH
		1237	aio_msync = EIO_MSYNC
		1238	PPCODE:
		1239	{
		1240	STRLEN svlen;
		1241	char *svptr = SvPVbyte (data, svlen);
		1242	UV len = SvUV (length);
		1243
		1244	if (offset < 0)
		1245	offset += svlen;
		1246
		1247	if (offset < 0 || offset > svlen)
		1248	croak ("offset outside of scalar");
		1249
		1250	if (!SvOK (length) || len + offset > svlen)
		1251	len = svlen - offset;
		1252
		1253	{
		1254	dREQ;
		1255
		1256	req->type = ix;
		1257	req->sv2 = SvREFCNT_inc (data);
		1258	req->ptr2 = (char *)svptr + offset;
		1259	req->size = len;
		1260	req->int1 = flags;
		1261
		1262	REQ_SEND;
		1263	}
		1264	}
		1265
		1266	void
		1267	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1268	PPCODE:
		1269	{
		1270	STRLEN svlen;
		1271	char *svptr = SvPVbyte (data, svlen);
		1272	UV len = SvUV (length);
		1273
		1274	if (offset < 0)
		1275	offset += svlen;
		1276
		1277	if (offset < 0 || offset > svlen)
		1278	croak ("offset outside of scalar");
		1279
		1280	if (!SvOK (length) || len + offset > svlen)
		1281	len = svlen - offset;
		1282
		1283	{
		1284	dREQ;
		1285
		1286	req->type = EIO_MLOCK;
		1287	req->sv2 = SvREFCNT_inc (data);
		1288	req->ptr2 = (char *)svptr + offset;
		1289	req->size = len;
		1290
		1291	REQ_SEND;
		1292	}
		1293	}
		1294
		1295	void
		1296	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1297	PPCODE:
		1298	{
		1299	dREQ;
		1300
		1301	req->type = EIO_MLOCKALL;
		1302	req->int1 = flags;
		1303
		1304	REQ_SEND;
		1305	}
		1306
		1307	void
880	aio_busy (double delay, SV *callback=&PL_sv_undef)	1308	aio_busy (double delay, SV *callback=&PL_sv_undef)
881	PPCODE:	1309	PPCODE:
882	{	1310	{
883	dREQ;	1311	dREQ;
884		1312
…		…
888	REQ_SEND;	1316	REQ_SEND;
889	}	1317	}
890		1318
891	void	1319	void
892	aio_group (SV *callback=&PL_sv_undef)	1320	aio_group (SV *callback=&PL_sv_undef)
893	PROTOTYPE: ;$
894	PPCODE:	1321	PPCODE:
895	{	1322	{
896	dREQ;	1323	dREQ;
897		1324
898	req->type = EIO_GROUP;	1325	req->type = EIO_GROUP;
899		1326
900	eio_submit (req);	1327	req_submit (req);
901	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1328	XPUSHs (req_sv (req, aio_grp_stash));
902	}	1329	}
903		1330
904	void	1331	void
905	aio_nop (SV *callback=&PL_sv_undef)	1332	aio_nop (SV *callback=&PL_sv_undef)
906	ALIAS:	1333	ALIAS:
…		…
915	REQ_SEND;	1342	REQ_SEND;
916	}	1343	}
917		1344
918	int	1345	int
919	aioreq_pri (int pri = 0)	1346	aioreq_pri (int pri = 0)
920	PROTOTYPE: ;$
921	CODE:	1347	CODE:
922	RETVAL = next_pri - EIO_PRI_BIAS;	1348	RETVAL = next_pri;
923	if (items > 0)	1349	if (items > 0)
924	{	1350	{
925	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1351	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
926	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1352	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
927	next_pri = pri + EIO_PRI_BIAS;	1353	next_pri = pri;
928	}	1354	}
929	OUTPUT:	1355	OUTPUT:
930	RETVAL	1356	RETVAL
931		1357
932	void	1358	void
933	aioreq_nice (int nice = 0)	1359	aioreq_nice (int nice = 0)
934	CODE:	1360	CODE:
935	nice = next_pri - nice;	1361	nice = next_pri - nice;
936	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1362	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
937	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1363	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938	next_pri = nice + EIO_PRI_BIAS;	1364	next_pri = nice;
939		1365
940	void	1366	void
941	flush ()	1367	flush ()
942	PROTOTYPE:
943	CODE:	1368	CODE:
944	while (eio_nreqs ())	1369	while (eio_nreqs ())
945	{	1370	{
946	poll_wait ();	1371	poll_wait ();
947	poll_cb ();	1372	poll_cb ();
948	}	1373	}
949		1374
950	int	1375	int
951	poll()	1376	poll ()
952	PROTOTYPE:
953	CODE:	1377	CODE:
954	poll_wait ();	1378	poll_wait ();
955	RETVAL = poll_cb ();	1379	RETVAL = poll_cb ();
956	OUTPUT:	1380	OUTPUT:
957	RETVAL	1381	RETVAL
958		1382
959	int	1383	int
960	poll_fileno()	1384	poll_fileno ()
961	PROTOTYPE:
962	CODE:	1385	CODE:
963	RETVAL = respipe [0];	1386	RETVAL = s_epipe_fd (&respipe);
964	OUTPUT:	1387	OUTPUT:
965	RETVAL	1388	RETVAL
966		1389
967	int	1390	int
968	poll_cb(...)	1391	poll_cb (...)
969	PROTOTYPE:	1392	PROTOTYPE:
970	CODE:	1393	CODE:
971	RETVAL = poll_cb ();	1394	RETVAL = poll_cb ();
972	OUTPUT:	1395	OUTPUT:
973	RETVAL	1396	RETVAL
974		1397
975	void	1398	void
976	poll_wait()	1399	poll_wait ()
977	PROTOTYPE:
978	CODE:	1400	CODE:
979	poll_wait ();	1401	poll_wait ();
980		1402
981	int	1403	int
982	nreqs()	1404	nreqs ()
983	PROTOTYPE:
984	CODE:	1405	CODE:
985	RETVAL = eio_nreqs ();	1406	RETVAL = eio_nreqs ();
986	OUTPUT:	1407	OUTPUT:
987	RETVAL	1408	RETVAL
988		1409
989	int	1410	int
990	nready()	1411	nready ()
991	PROTOTYPE:
992	CODE:	1412	CODE:
993	RETVAL = eio_nready ();	1413	RETVAL = eio_nready ();
994	OUTPUT:	1414	OUTPUT:
995	RETVAL	1415	RETVAL
996		1416
997	int	1417	int
998	npending()	1418	npending ()
999	PROTOTYPE:
1000	CODE:	1419	CODE:
1001	RETVAL = eio_npending ();	1420	RETVAL = eio_npending ();
1002	OUTPUT:	1421	OUTPUT:
1003	RETVAL	1422	RETVAL
1004		1423
1005	int	1424	int
1006	nthreads()	1425	nthreads ()
1007	PROTOTYPE:
1008	CODE:	1426	CODE:
1009	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1427	RETVAL = eio_nthreads ();
1010	RETVAL = started;
1011	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012	OUTPUT:	1428	OUTPUT:
1013	RETVAL	1429	RETVAL
		1430
		1431	int
		1432	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1433	CODE:
		1434	RETVAL = posix_fadvise (fh, offset, length, advice);
		1435	OUTPUT:
		1436	RETVAL
		1437
		1438	ssize_t
		1439	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1440	CODE:
		1441	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1442	OUTPUT:
		1443	RETVAL
		1444
		1445	void
		1446	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1447	PPCODE:
		1448	sv_unmagic (scalar, MMAP_MAGIC);
		1449	{
		1450	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1451	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1452	if (addr == (void *)-1)
		1453	XSRETURN_NO;
		1454
		1455	sv_force_normal (scalar);
		1456
		1457	/* we store the length in mg_obj, as namlen is I32 :/ */
		1458	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1459	->mg_obj = (SV *)length;
		1460
		1461	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1462
		1463	if (!(prot & PROT_WRITE))
		1464	SvREADONLY_on (scalar);
		1465
		1466	if (SvLEN (scalar))
		1467	Safefree (SvPVX (scalar));
		1468
		1469	SvPVX (scalar) = (char *)addr;
		1470	SvCUR_set (scalar, length);
		1471	SvLEN_set (scalar, 0);
		1472	SvPOK_only (scalar);
		1473
		1474	XSRETURN_YES;
		1475	}
		1476
		1477	void
		1478	munmap (SV *scalar)
		1479	CODE:
		1480	sv_unmagic (scalar, MMAP_MAGIC);
		1481
		1482	int
		1483	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1484	ALIAS:
		1485	mprotect = 1
		1486	CODE:
		1487	{
		1488	STRLEN svlen;
		1489	void *addr = SvPVbyte (scalar, svlen);
		1490	size_t len = SvUV (length);
		1491
		1492	if (offset < 0)
		1493	offset += svlen;
		1494
		1495	if (offset < 0 || offset > svlen)
		1496	croak ("offset outside of scalar");
		1497
		1498	if (!SvOK (length) || len + offset > svlen)
		1499	len = svlen - offset;
		1500
		1501	addr = (void *)(((intptr_t)addr) + offset);
		1502	eio_page_align (&addr, &len);
		1503
		1504	switch (ix)
		1505	{
		1506	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1507	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1508	}
		1509	}
		1510	OUTPUT:
		1511	RETVAL
		1512
		1513	int
		1514	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1515	CODE:
		1516	{
		1517	STRLEN svlen;
		1518	void *addr = SvPVbyte (scalar, svlen);
		1519	size_t len = SvUV (length);
		1520
		1521	if (offset < 0)
		1522	offset += svlen;
		1523
		1524	if (offset < 0 || offset > svlen)
		1525	croak ("offset outside of scalar");
		1526
		1527	if (!SvOK (length) || len + offset > svlen)
		1528	len = svlen - offset;
		1529
		1530	addr = (void *)(((intptr_t)addr) + offset);
		1531	eio_page_align (&addr, &len);
		1532	#if _POSIX_MEMLOCK_RANGE
		1533	RETVAL = munlock (addr, len);
		1534	#else
		1535	RETVAL = ((errno = ENOSYS), -1);
		1536	#endif
		1537	}
		1538	OUTPUT:
		1539	RETVAL
		1540
		1541	int
		1542	munlockall ()
		1543	CODE:
		1544	#if _POSIX_MEMLOCK
		1545	munlockall ();
		1546	#else
		1547	RETVAL = -1;
		1548	errno = ENOSYS;
		1549	#endif
		1550	OUTPUT:
		1551	RETVAL
1014		1552
1015	void _on_next_submit (SV *cb)	1553	void _on_next_submit (SV *cb)
1016	CODE:	1554	CODE:
1017	SvREFCNT_dec (on_next_submit);	1555	SvREFCNT_dec (on_next_submit);
1018	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1556	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1026	CODE:	1564	CODE:
1027	eio_cancel (req);	1565	eio_cancel (req);
1028		1566
1029	void	1567	void
1030	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1568	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031	CODE:	1569	PPCODE:
		1570	{
		1571	if (GIMME_V != G_VOID)
		1572	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1573
		1574	if (items > 1)
		1575	{
		1576	SV *cb_cv =get_cb (callback);
		1577
1032	SvREFCNT_dec (req->callback);	1578	SvREFCNT_dec (req->callback);
1033	req->callback = newSVsv (callback);	1579	req->callback = SvREFCNT_inc (cb_cv);
		1580	}
		1581	}
1034		1582
1035	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1583	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036		1584
1037	void	1585	void
1038	add (aio_req grp, ...)	1586	add (aio_req grp, ...)
…		…
1070	AV *av;	1618	AV *av;
1071		1619
1072	grp->errorno = errno;	1620	grp->errorno = errno;
1073		1621
1074	av = newAV ();	1622	av = newAV ();
		1623	av_extend (av, items - 1);
1075		1624
1076	for (i = 1; i < items; ++i )	1625	for (i = 1; i < items; ++i )
1077	av_push (av, newSVsv (ST (i)));	1626	av_push (av, newSVsv (ST (i)));
1078		1627
1079	SvREFCNT_dec (grp->sv1);	1628	SvREFCNT_dec (grp->sv1);
…		…
1093	void	1642	void
1094	feed (aio_req grp, SV *callback=&PL_sv_undef)	1643	feed (aio_req grp, SV *callback=&PL_sv_undef)
1095	CODE:	1644	CODE:
1096	{	1645	{
1097	SvREFCNT_dec (grp->sv2);	1646	SvREFCNT_dec (grp->sv2);
1098	grp->sv2 = newSVsv (callback);	1647	grp->sv2 = newSVsv (callback);
		1648	grp->feed = aio_grp_feed;
1099		1649
1100	if (grp->int2 <= 0)	1650	if (grp->int2 <= 0)
1101	grp->int2 = 2;	1651	grp->int2 = 2;
1102		1652
1103	eio_grp_limit (grp, grp->int2);	1653	eio_grp_limit (grp, grp->int2);

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