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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.118 by root, Sun May 11 00:01:03 2008 UTC vs.
Revision 1.175 by root, Wed Dec 1 04:43:12 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	#endif
		128	#ifndef POSIX_FADV_SEQUENTIAL
		129	# define POSIX_FADV_SEQUENTIAL 0
		130	#endif
		131	#ifndef POSIX_FADV_RANDOM
		132	# define POSIX_FADV_RANDOM 0
		133	#endif
		134	#ifndef POSIX_FADV_NOREUSE
		135	# define POSIX_FADV_NOREUSE 0
		136	#endif
		137	#ifndef POSIX_FADV_WILLNEED
		138	# define POSIX_FADV_WILLNEED 0
		139	#endif
		140	#ifndef POSIX_FADV_DONTNEED
		141	# define POSIX_FADV_DONTNEED 0
		142	#endif
		143
		144	#if !HAVE_POSIX_FADVISE
		145	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		146	#endif
		147
		148	#ifndef POSIX_MADV_NORMAL
		149	# define POSIX_MADV_NORMAL 0
		150	#endif
		151	#ifndef POSIX_MADV_SEQUENTIAL
		152	# define POSIX_MADV_SEQUENTIAL 0
		153	#endif
		154	#ifndef POSIX_MADV_RANDOM
		155	# define POSIX_MADV_RANDOM 0
		156	#endif
		157	#ifndef POSIX_MADV_WILLNEED
		158	# define POSIX_MADV_WILLNEED 0
		159	#endif
		160	#ifndef POSIX_MADV_DONTNEED
		161	# define POSIX_MADV_DONTNEED 0
		162	#endif
		163
		164	#if !HAVE_POSIX_MADVISE
		165	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		166	#endif
		167
		168	#ifndef PROT_NONE
		169	# define PROT_NONE 0
		170	#endif
		171	#ifndef PROT_READ
		172	# define PROT_READ 0
		173	#endif
		174	#ifndef PROT_WRITE
		175	# define PROT_READ 0
		176	#endif
		177	#ifndef PROT_EXEC
		178	# define PROT_EXEC 0
		179	#endif
		180
		181	#ifndef ST_NODEV
		182	# define ST_NODEV 0
		183	#endif
		184	#ifndef ST_NOEXEC
		185	# define ST_NOEXEC 0
		186	#endif
		187	#ifndef ST_SYNCHRONOUS
		188	# define ST_SYNCHRONOUS 0
		189	#endif
		190	#ifndef ST_MANDLOCK
		191	# define ST_MANDLOCK 0
		192	#endif
		193	#ifndef ST_WRITE
		194	# define ST_WRITE 0
		195	#endif
		196	#ifndef ST_APPEND
		197	# define ST_APPEND 0
		198	#endif
		199	#ifndef ST_IMMUTABLE
		200	# define ST_IMMUTABLE 0
		201	#endif
		202	#ifndef ST_NOATIME
		203	# define ST_NOATIME 0
		204	#endif
		205	#ifndef ST_NODIRATIME
		206	# define ST_NODIRATIME 0
		207	#endif
		208	#ifndef ST_RELATIME
		209	# define ST_RELATIME 0
		210	#endif
		211
		212	#ifndef MAP_ANONYMOUS
		213	# ifdef MAP_ANON
		214	# define MAP_ANONYMOUS MAP_ANON
		215	# else
		216	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		217	# endif
		218	#endif
		219	#ifndef MAP_HUGETLB
		220	# define MAP_HUGETLB 0
		221	#endif
		222	#ifndef MAP_LOCKED
		223	# define MAP_LOCKED 0
		224	#endif
		225	#ifndef MAP_NORESERVE
		226	# define MAP_NORESERVE 0
		227	#endif
		228	#ifndef MAP_POPULATE
		229	# define MAP_POPULATE 0
		230	#endif
		231	#ifndef MAP_NONBLOCK
		232	# define MAP_NONBLOCK 0
		233	#endif
		234
		235	#ifndef PAGESIZE
		236	# define PAGESIZE sysconf (_SC_PAGESIZE)
		237	#endif
92		238
93	static int req_invoke (eio_req *req);	239	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	240	#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);	241	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	242	#define EIO_DESTROY(req) req_destroy (req)
99		243
100	enum {	244	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	245	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
105		249
106	typedef eio_req *aio_req;	250	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	251	typedef eio_req *aio_req_ornot;
108		252
109	static SV *on_next_submit;	253	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	254	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	255	static int max_outstanding;
112		256
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	257	static s_epipe respipe;
114		258
115	static void req_destroy (aio_req req);	259	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	260	static void req_cancel (aio_req req);
117		261
118	static void want_poll (void)	262	static void want_poll (void)
119	{	263	{
120	/* write a dummy byte to the pipe so fh becomes ready */	264	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	265	s_epipe_signal (&respipe);
122	}	266	}
123		267
124	static void done_poll (void)	268	static void done_poll (void)
125	{	269	{
126	/* read any signals sent by the worker threads */	270	/* read any signals sent by the worker threads */
127	char buf [4];	271	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	272	}
131		273
132	/* must be called at most once */	274	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	275	static SV *req_sv (aio_req req, HV *stash)
134	{	276	{
135	if (!req->self)	277	if (!req->self)
136	{	278	{
137	req->self = (SV *)newHV ();	279	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	280	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	281	}
140		282
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	283	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	284	}
143		285
144	static aio_req SvAIO_REQ (SV *sv)	286	static aio_req SvAIO_REQ (SV *sv)
145	{	287	{
146	MAGIC *mg;	288	MAGIC *mg;
147		289
148	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	290	if (!SvROK (sv)
		291	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		292	&& SvSTASH (SvRV (sv)) != aio_req_stash
		293	&& !sv_derived_from (sv, "IO::AIO::REQ")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	294	croak ("object of class IO::AIO::REQ expected");
150		295
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	296	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		297
153	return mg ? (aio_req)mg->mg_ptr : 0;	298	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	299	}
…		…
160	dSP;	305	dSP;
161		306
162	ENTER;	307	ENTER;
163	SAVETMPS;	308	SAVETMPS;
164	PUSHMARK (SP);	309	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	310	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	311	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	312	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	313	SPAGAIN;
169	FREETMPS;	314	FREETMPS;
170	LEAVE;	315	LEAVE;
…		…
173		318
174	static void req_submit (eio_req *req)	319	static void req_submit (eio_req *req)
175	{	320	{
176	eio_submit (req);	321	eio_submit (req);
177		322
178	if (on_next_submit)	323	if (expect_false (on_next_submit))
179	{	324	{
180	dSP;	325	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	326	SV *cb = sv_2mortal (on_next_submit);
182		327
183	on_next_submit = 0;	328	on_next_submit = 0;
…		…
188	}	333	}
189	}	334	}
190		335
191	static int req_invoke (eio_req *req)	336	static int req_invoke (eio_req *req)
192	{	337	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	338	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	339	SvREADONLY_off (req->sv2);
197		340
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	341	if (!EIO_CANCELLED (req) && req->callback)
199	{	342	{
		343	dSP;
		344	static SV *sv_result_cache; /* caches the result integer SV */
		345	SV *sv_result;
		346
200	ENTER;	347	ENTER;
201	SAVETMPS;	348	SAVETMPS;
202	PUSHMARK (SP);	349	PUSHMARK (SP);
203	EXTEND (SP, 1);	350	EXTEND (SP, 1);
		351
		352	/* do not recreate the result IV from scratch each time */
		353	if (expect_true (sv_result_cache))
		354	{
		355	sv_result = sv_result_cache; sv_result_cache = 0;
		356	SvIV_set (sv_result, req->result);
		357	}
		358	else
		359	{
		360	sv_result = newSViv (req->result);
		361	SvREADONLY_on (sv_result);
		362	}
204		363
205	switch (req->type)	364	switch (req->type)
206	{	365	{
207	case EIO_READDIR:	366	case EIO_READDIR:
208	{	367	{
209	SV *rv = &PL_sv_undef;	368	SV *rv = &PL_sv_undef;
210		369
211	if (req->result >= 0)	370	if (req->result >= 0)
212	{	371	{
213	int i;	372	int i;
214	char *buf = req->ptr2;	373	char *names = (char *)req->ptr2;
		374	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215	AV *av = newAV ();	375	AV *av = newAV ();
216		376
217	av_extend (av, req->result - 1);	377	av_extend (av, req->result - 1);
218		378
219	for (i = 0; i < req->result; ++i)	379	for (i = 0; i < req->result; ++i)
220	{	380	{
221	SV *sv = newSVpv (buf, 0);	381	if (req->int1 & EIO_READDIR_DENTS)
		382	{
		383	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		384
		385	if (req->int1 & EIO_READDIR_CUSTOM2)
		386	{
		387	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		388	AV *avent = newAV ();
		389
		390	av_extend (avent, 2);
		391
		392	if (!sv_type [ent->type])
		393	{
		394	sv_type [ent->type] = newSViv (ent->type);
		395	SvREADONLY_on (sv_type [ent->type]);
		396	}
		397
		398	av_store (avent, 0, namesv);
		399	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		400	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		401
		402	av_store (av, i, newRV_noinc ((SV *)avent));
		403	}
		404	else
223	av_store (av, i, sv);	405	av_store (av, i, namesv);
		406
		407	++ent;
		408	}
		409	else
		410	{
		411	SV *name = newSVpv (names, 0);
		412	av_store (av, i, name);
224	buf += SvCUR (sv) + 1;	413	names += SvCUR (name) + 1;
		414	}
225	}	415	}
226		416
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	417	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	418	}
229		419
230	PUSHs (rv);	420	PUSHs (rv);
		421
		422	if (req->int1 & EIO_READDIR_CUSTOM1)
		423	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
231	}	424	}
232	break;	425	break;
233		426
234	case EIO_OPEN:	427	case EIO_OPEN:
235	{	428	{
…		…
241	GV *gv = (GV *)sv_newmortal ();	434	GV *gv = (GV *)sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	435	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243	char sym [64];	436	char sym [64];
244	int symlen;	437	int symlen;
245		438
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	439	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	440	gv_init (gv, aio_stash, sym, symlen, 0);
248		441
249	symlen = snprintf (	442	symlen = snprintf (
250	sym,	443	sym,
251	sizeof (sym),	444	sizeof (sym),
252	"%s&=%d",	445	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	446	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	447	(int)req->result
255	);	448	);
256		449
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	450	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	451	fh = (SV *)gv;
259	}	452	}
260		453
261	PUSHs (fh);	454	PUSHs (fh);
262	}	455	}
		456	break;
		457
		458	case EIO_STATVFS:
		459	case EIO_FSTATVFS:
		460	{
		461	SV *rv = &PL_sv_undef;
		462
		463	if (req->result >= 0)
		464	{
		465	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		466	HV *hv = newHV ();
		467
		468	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		469
		470	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		471	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		472	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		473	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		474	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		475	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		476	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		477	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		478	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		479	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		480	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		481	}
		482
		483	PUSHs (rv);
		484	}
		485
263	break;	486	break;
264		487
265	case EIO_GROUP:	488	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	489	req->int1 = 2; /* mark group as finished */
267		490
…		…
280	case EIO_BUSY:	503	case EIO_BUSY:
281	break;	504	break;
282		505
283	case EIO_READLINK:	506	case EIO_READLINK:
284	if (req->result > 0)	507	if (req->result > 0)
285	{	508	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
286	SvCUR_set (req->sv2, req->result);
287	*SvEND (req->sv2) = 0;
288	PUSHs (req->sv2);
289	}
290	break;	509	break;
291		510
292	case EIO_STAT:	511	case EIO_STAT:
293	case EIO_LSTAT:	512	case EIO_LSTAT:
294	case EIO_FSTAT:	513	case EIO_FSTAT:
295	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	514	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
296	PL_laststatval = req->result;	515	PL_laststatval = req->result;
297	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	516	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
298	PUSHs (sv_2mortal (newSViv (req->result)));	517	PUSHs (sv_result);
299	break;	518	break;
300		519
301	case EIO_READ:	520	case EIO_READ:
		521	{
302	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	522	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
303	*SvEND (req->sv2) = 0;	523	*SvEND (req->sv2) = 0;
304	PUSHs (sv_2mortal (newSViv (req->result)));	524	SvPOK_only (req->sv2);
		525	SvSETMAGIC (req->sv2);
		526	PUSHs (sv_result);
		527	}
305	break;	528	break;
306		529
307	case EIO_DUP2:	530	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
308	if (req->result > 0)	531	if (req->result > 0)
309	req->result = 0;	532	SvIV_set (sv_result, 0);
310	/* FALLTHROUGH */	533	/* FALLTHROUGH */
311		534
312	default:	535	default:
313	PUSHs (sv_2mortal (newSViv (req->result)));	536	PUSHs (sv_result);
314	break;	537	break;
315	}	538	}
316		539
317	errno = req->errorno;	540	errno = req->errorno;
318		541
319	PUTBACK;	542	PUTBACK;
320	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	543	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
321	SPAGAIN;	544	SPAGAIN;
		545
		546	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		547	SvREFCNT_dec (sv_result);
		548	else
		549	sv_result_cache = sv_result;
322		550
323	FREETMPS;	551	FREETMPS;
324	LEAVE;	552	LEAVE;
325		553
326	PUTBACK;	554	PUTBACK;
…		…
355	grp->sv2 = 0;	583	grp->sv2 = 0;
356		584
357	eio_grp_cancel (grp);	585	eio_grp_cancel (grp);
358	}	586	}
359		587
360	#ifdef USE_SOCKETS_AS_HANDLES
361	# define TO_SOCKET(x) (win32_get_osfhandle (x))
362	#else
363	# define TO_SOCKET(x) (x)
364	#endif
365
366	static void	588	static void
367	create_respipe (void)	589	create_respipe (void)
368	{	590	{
369	int old_readfd = respipe [0];
370
371	if (respipe [1] >= 0)
372	respipe_close (TO_SOCKET (respipe [1]));
373
374	#ifdef _WIN32
375	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
376	#else
377	if (pipe (respipe))	591	if (s_epipe_renew (&respipe))
378	#endif
379	croak ("unable to initialize result pipe");	592	croak ("IO::AIO: unable to initialize result pipe");
380
381	if (old_readfd >= 0)
382	{
383	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
384	croak ("unable to initialize result pipe(2)");
385
386	respipe_close (respipe [0]);
387	respipe [0] = old_readfd;
388	}
389
390	#ifdef _WIN32
391	int arg = 1;
392	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
393	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
394	#else
395	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
396	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
397	#endif
398	croak ("unable to initialize result pipe(3)");
399
400	respipe_osf [0] = TO_SOCKET (respipe [0]);
401	respipe_osf [1] = TO_SOCKET (respipe [1]);
402	}	593	}
403		594
404	static void poll_wait (void)	595	static void poll_wait (void)
405	{	596	{
406	fd_set rfd;
407
408	while (eio_nreqs ())	597	while (eio_nreqs ())
409	{	598	{
410	int size;	599	int size;
411		600
412	X_LOCK (reslock);	601	X_LOCK (reslock);
…		…
414	X_UNLOCK (reslock);	603	X_UNLOCK (reslock);
415		604
416	if (size)	605	if (size)
417	return;	606	return;
418		607
419	maybe_start_thread ();	608	etp_maybe_start_thread ();
420		609
421	FD_ZERO (&rfd);	610	s_epipe_wait (&respipe);
422	FD_SET (respipe [0], &rfd);
423
424	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
425	}	611	}
426	}	612	}
427		613
428	static int poll_cb (void)	614	static int poll_cb (void)
429	{	615	{
430	int res;	616	for (;;)
431
432	do
433	{	617	{
434	res = eio_poll ();	618	int res = eio_poll ();
435		619
436	if (res > 0)	620	if (res > 0)
437	croak (0);	621	croak (0);
		622
		623	if (!max_outstanding || max_outstanding > eio_nreqs ())
		624	return res;
		625
		626	poll_wait ();
438	}	627	}
439	while (max_outstanding && max_outstanding <= eio_nreqs ());
440
441	return res;
442	}	628	}
443		629
444	static void atfork_child (void)	630	static void atfork_child (void)
445	{	631	{
446	create_respipe ();	632	create_respipe ();
447	}	633	}
448		634
		635	/*****************************************************************************/
		636
		637	#if !_POSIX_MAPPED_FILES
		638	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		639	# define munmap(addr,length) (errno = ENOSYS, -1)
		640	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		641	# define PROT_NONE 0
		642	# define PROT_WRITE 0
		643	# define MAP_PRIVATE 0
		644	# define MAP_SHARED 0
		645	# define MAP_FIXED 0
		646	#endif
		647
		648	#define MMAP_MAGIC PERL_MAGIC_ext
		649
		650	static int
		651	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		652	{
		653	int old_errno = errno;
		654	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		655	errno = old_errno;
		656
		657	mg->mg_obj = 0; /* just in case */
		658
		659	SvREADONLY_off (sv);
		660
		661	if (SvPVX (sv) != mg->mg_ptr)
		662	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		663
		664	SvCUR_set (sv, 0);
		665	SvPVX (sv) = 0;
		666	SvOK_off (sv);
		667
		668	return 0;
		669	}
		670
		671	static MGVTBL mmap_vtbl = {
		672	0, 0, 0, 0, mmap_free
		673	};
		674
		675	/*****************************************************************************/
		676
		677	static SV *
		678	get_cb (SV *cb_sv)
		679	{
		680	SvGETMAGIC (cb_sv);
		681	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		682	}
		683
449	#define dREQ \	684	#define dREQ \
		685	SV *cb_cv; \
450	aio_req req; \	686	aio_req req; \
451	int req_pri = next_pri; \	687	int req_pri = next_pri; \
452	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	688	next_pri = EIO_PRI_DEFAULT; \
453	\	689	\
454	if (SvOK (callback) && !SvROK (callback)) \	690	cb_cv = get_cb (callback); \
455	croak ("callback must be undef or of reference type"); \
456	\	691	\
457	Newz (0, req, 1, eio_req); \	692	Newz (0, req, 1, eio_req); \
458	if (!req) \	693	if (!req) \
459	croak ("out of memory during eio_req allocation"); \	694	croak ("out of memory during eio_req allocation"); \
460	\	695	\
461	req->callback = newSVsv (callback); \	696	req->callback = SvREFCNT_inc (cb_cv); \
462	req->pri = req_pri	697	req->pri = req_pri
463		698
464	#define REQ_SEND \	699	#define REQ_SEND \
		700	PUTBACK; \
465	req_submit (req); \	701	req_submit (req); \
		702	SPAGAIN; \
466	\	703	\
467	if (GIMME_V != G_VOID) \	704	if (GIMME_V != G_VOID) \
468	XPUSHs (req_sv (req, AIO_REQ_KLASS));	705	XPUSHs (req_sv (req, aio_req_stash));
469		706
470	MODULE = IO::AIO PACKAGE = IO::AIO	707	MODULE = IO::AIO PACKAGE = IO::AIO
471		708
472	PROTOTYPES: ENABLE	709	PROTOTYPES: ENABLE
473		710
474	BOOT:	711	BOOT:
475	{	712	{
476	stash = gv_stashpv ("IO::AIO", 1);	713	static const struct {
477		714	const char *name;
478	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	715	IV iv;
479	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	716	} *civ, const_iv[] = {
480	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	717	# define const_niv(name, value) { # name, (IV) value },
481	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	718	# define const_iv(name) { # name, (IV) name },
482	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	719	# define const_eio(name) { # name, (IV) EIO_ ## name },
		720	const_iv (EXDEV)
		721	const_iv (ENOSYS)
		722	const_iv (O_RDONLY)
		723	const_iv (O_WRONLY)
		724	const_iv (O_RDWR)
		725	const_iv (O_CREAT)
		726	const_iv (O_TRUNC)
		727	const_iv (O_EXCL)
		728	const_iv (O_APPEND)
483	#ifdef _WIN32	729	#ifndef _WIN32
484	X_MUTEX_CHECK (wrklock);	730	const_iv (S_IFIFO)
485	X_MUTEX_CHECK (reslock);
486	X_MUTEX_CHECK (reqlock);
487	X_MUTEX_CHECK (reqwait);
488	X_MUTEX_CHECK (preadwritelock);
489	X_MUTEX_CHECK (readdirlock);
490
491	X_COND_CHECK (reqwait);
492	#else
493	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
494	#endif	731	#endif
		732	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		733	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		734	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		735	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		736	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		737	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
495		738
		739	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		740	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		741	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		742	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		743	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		744
		745	const_iv (ST_RDONLY)
		746	const_iv (ST_NOSUID)
		747	const_iv (ST_NODEV)
		748	const_iv (ST_NOEXEC)
		749	const_iv (ST_SYNCHRONOUS)
		750	const_iv (ST_MANDLOCK)
		751	const_iv (ST_WRITE)
		752	const_iv (ST_APPEND)
		753	const_iv (ST_IMMUTABLE)
		754	const_iv (ST_NOATIME)
		755	const_iv (ST_NODIRATIME)
		756	const_iv (ST_RELATIME)
		757
		758	const_iv (PROT_NONE)
		759	const_iv (PROT_EXEC)
		760	const_iv (PROT_READ)
		761	const_iv (PROT_WRITE)
		762
		763	/*const_iv (MAP_FIXED)*/
		764	const_iv (MAP_PRIVATE)
		765	const_iv (MAP_SHARED)
		766	const_iv (MAP_ANONYMOUS)
		767
		768	/* linuxish */
		769	const_iv (MAP_HUGETLB)
		770	const_iv (MAP_LOCKED)
		771	const_iv (MAP_NORESERVE)
		772	const_iv (MAP_POPULATE)
		773	const_iv (MAP_NONBLOCK)
		774
		775	const_eio (MCL_FUTURE)
		776	const_eio (MCL_CURRENT)
		777
		778	const_eio (MS_ASYNC)
		779	const_eio (MS_INVALIDATE)
		780	const_eio (MS_SYNC)
		781
		782	const_eio (MT_MODIFY)
		783
		784	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		785	const_eio (SYNC_FILE_RANGE_WRITE)
		786	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		787
		788	const_eio (READDIR_DENTS)
		789	const_eio (READDIR_DIRS_FIRST)
		790	const_eio (READDIR_STAT_ORDER)
		791	const_eio (READDIR_FOUND_UNKNOWN)
		792
		793	const_eio (DT_UNKNOWN)
		794	const_eio (DT_FIFO)
		795	const_eio (DT_CHR)
		796	const_eio (DT_DIR)
		797	const_eio (DT_BLK)
		798	const_eio (DT_REG)
		799	const_eio (DT_LNK)
		800	const_eio (DT_SOCK)
		801	const_eio (DT_WHT)
		802	};
		803
		804	aio_stash = gv_stashpv ("IO::AIO" , 1);
		805	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		806	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		807
		808	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		809	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		810
		811	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		812
496	create_respipe ();	813	create_respipe ();
497		814
498	if (eio_init (want_poll, done_poll) < 0)	815	if (eio_init (want_poll, done_poll) < 0)
499	croak ("IO::AIO: unable to initialise eio library");	816	croak ("IO::AIO: unable to initialise eio library");
500		817
501	/* atfork child called in fifo order, so before eio's handler */	818	/* atfork child called in fifo order, so before eio's handler */
502	X_THREAD_ATFORK (0, 0, atfork_child);	819	X_THREAD_ATFORK (0, 0, atfork_child);
503	}	820	}
504		821
505	void	822	void
506	max_poll_reqs (int nreqs)	823	max_poll_reqs (int nreqs)
507	PROTOTYPE: $	824	PROTOTYPE: $
…		…
538	CODE:	855	CODE:
539	max_outstanding = maxreqs;	856	max_outstanding = maxreqs;
540		857
541	void	858	void
542	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	859	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
543	PROTOTYPE: $$$;$
544	PPCODE:	860	PPCODE:
545	{	861	{
546	dREQ;	862	dREQ;
547		863
548	req->type = EIO_OPEN;	864	req->type = EIO_OPEN;
…		…
554	REQ_SEND;	870	REQ_SEND;
555	}	871	}
556		872
557	void	873	void
558	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	874	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
559	PROTOTYPE: $;$
560	ALIAS:	875	ALIAS:
561	aio_fsync = EIO_FSYNC	876	aio_fsync = EIO_FSYNC
562	aio_fdatasync = EIO_FDATASYNC	877	aio_fdatasync = EIO_FDATASYNC
563	PPCODE:	878	PPCODE:
564	{	879	{
		880	int fd = s_fileno_croak (fh, 0);
565	dREQ;	881	dREQ;
566		882
567	req->type = ix;	883	req->type = ix;
568	req->sv1 = newSVsv (fh);	884	req->sv1 = newSVsv (fh);
569	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	885	req->int1 = fd;
570		886
571	REQ_SEND (req);	887	REQ_SEND (req);
572	}	888	}
573		889
574	void	890	void
		891	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		892	PPCODE:
		893	{
		894	int fd = s_fileno_croak (fh, 0);
		895	dREQ;
		896
		897	req->type = EIO_SYNC_FILE_RANGE;
		898	req->sv1 = newSVsv (fh);
		899	req->int1 = fd;
		900	req->offs = offset;
		901	req->size = nbytes;
		902	req->int2 = flags;
		903
		904	REQ_SEND (req);
		905	}
		906
		907	void
575	aio_close (SV *fh, SV *callback=&PL_sv_undef)	908	aio_close (SV *fh, SV *callback=&PL_sv_undef)
576	PROTOTYPE: $;$
577	PPCODE:	909	PPCODE:
578	{	910	{
579	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	911	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		912	int fd = s_fileno_croak (fh, 0);
580	dREQ;	913	dREQ;
581		914
582	if (close_pipe < 0)	915	if (close_pipe < 0)
583	{	916	{
584	int pipefd [2];	917	int pipefd [2];
…		…
592	}	925	}
593		926
594	req->type = EIO_DUP2;	927	req->type = EIO_DUP2;
595	req->int1 = close_pipe;	928	req->int1 = close_pipe;
596	req->sv2 = newSVsv (fh);	929	req->sv2 = newSVsv (fh);
597	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	930	req->int2 = fd;
598		931
599	REQ_SEND (req);	932	REQ_SEND (req);
600	}	933	}
601		934
602	void	935	void
603	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	936	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
604	ALIAS:	937	ALIAS:
605	aio_read = EIO_READ	938	aio_read = EIO_READ
606	aio_write = EIO_WRITE	939	aio_write = EIO_WRITE
607	PROTOTYPE: $$$$$;$
608	PPCODE:	940	PPCODE:
609	{	941	{
610	STRLEN svlen;	942	STRLEN svlen;
		943	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
611	char *svptr = SvPVbyte (data, svlen);	944	char *svptr = SvPVbyte (data, svlen);
612	UV len = SvUV (length);	945	UV len = SvUV (length);
613
614	SvUPGRADE (data, SVt_PV);
615	SvPOK_on (data);
616		946
617	if (dataoffset < 0)	947	if (dataoffset < 0)
618	dataoffset += svlen;	948	dataoffset += svlen;
619		949
620	if (dataoffset < 0 || dataoffset > svlen)	950	if (dataoffset < 0 || dataoffset > svlen)
…		…
626	if (!SvOK (length) || len + dataoffset > svlen)	956	if (!SvOK (length) || len + dataoffset > svlen)
627	len = svlen - dataoffset;	957	len = svlen - dataoffset;
628	}	958	}
629	else	959	else
630	{	960	{
631	/* read: grow scalar as necessary */	961	/* read: check type and grow scalar as necessary */
		962	SvUPGRADE (data, SVt_PV);
632	svptr = SvGROW (data, len + dataoffset + 1);	963	svptr = SvGROW (data, len + dataoffset + 1);
633	}	964	}
634		965
635	if (len < 0)
636	croak ("length must not be negative");
637
638	{	966	{
639	dREQ;	967	dREQ;
640		968
641	req->type = ix;	969	req->type = ix;
642	req->sv1 = newSVsv (fh);	970	req->sv1 = newSVsv (fh);
643	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	971	req->int1 = fd;
644	: IoOFP (sv_2io (fh)));
645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	972	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
646	req->size = len;	973	req->size = len;
647	req->sv2 = SvREFCNT_inc (data);	974	req->sv2 = SvREFCNT_inc (data);
648	req->ptr2 = (char *)svptr + dataoffset;	975	req->ptr2 = (char *)svptr + dataoffset;
649	req->stroffset = dataoffset;	976	req->stroffset = dataoffset;
…		…
658	}	985	}
659	}	986	}
660		987
661	void	988	void
662	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	989	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$;$
664	PPCODE:	990	PPCODE:
665	{	991	{
666	SV *data;	992	SV *data;
667	dREQ;	993	dREQ;
668
669	data = newSV (NAME_MAX);
670	SvPOK_on (data);
671		994
672	req->type = EIO_READLINK;	995	req->type = EIO_READLINK;
673	req->sv1 = newSVsv (path);	996	req->sv1 = newSVsv (path);
674	req->ptr1 = SvPVbyte_nolen (req->sv1);	997	req->ptr1 = SvPVbyte_nolen (req->sv1);
675	req->sv2 = data;
676	req->ptr2 = SvPVbyte_nolen (data);
677		998
678	REQ_SEND;	999	REQ_SEND;
679	}	1000	}
680		1001
681	void	1002	void
682	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1003	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
683	PROTOTYPE: $$$$;$
684	PPCODE:	1004	PPCODE:
685	{	1005	{
		1006	int ifd = s_fileno_croak (in_fh , 0);
		1007	int ofd = s_fileno_croak (out_fh, 1);
686	dREQ;	1008	dREQ;
687		1009
688	req->type = EIO_SENDFILE;	1010	req->type = EIO_SENDFILE;
689	req->sv1 = newSVsv (out_fh);	1011	req->sv1 = newSVsv (out_fh);
690	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1012	req->int1 = ofd;
691	req->sv2 = newSVsv (in_fh);	1013	req->sv2 = newSVsv (in_fh);
692	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1014	req->int2 = ifd;
693	req->offs = SvVAL64 (in_offset);	1015	req->offs = in_offset;
694	req->size = length;	1016	req->size = length;
695		1017
696	REQ_SEND;	1018	REQ_SEND;
697	}	1019	}
698		1020
699	void	1021	void
700	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1022	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
701	PROTOTYPE: $$$;$
702	PPCODE:	1023	PPCODE:
703	{	1024	{
		1025	int fd = s_fileno_croak (fh, 0);
704	dREQ;	1026	dREQ;
705		1027
706	req->type = EIO_READAHEAD;	1028	req->type = EIO_READAHEAD;
707	req->sv1 = newSVsv (fh);	1029	req->sv1 = newSVsv (fh);
708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1030	req->int1 = fd;
709	req->offs = SvVAL64 (offset);	1031	req->offs = offset;
710	req->size = length;	1032	req->size = length;
711		1033
712	REQ_SEND;	1034	REQ_SEND;
713	}	1035	}
714		1036
715	void	1037	void
716	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1038	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
717	ALIAS:	1039	ALIAS:
718	aio_stat = EIO_STAT	1040	aio_stat = EIO_STAT
719	aio_lstat = EIO_LSTAT	1041	aio_lstat = EIO_LSTAT
		1042	aio_statvfs = EIO_STATVFS
720	PPCODE:	1043	PPCODE:
721	{	1044	{
722	dREQ;	1045	dREQ;
723		1046
724	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
725	if (!req->ptr2)
726	{
727	req_destroy (req);
728	croak ("out of memory during aio_stat statdata allocation");
729	}
730
731	req->flags |= EIO_FLAG_PTR2_FREE;
732	req->sv1 = newSVsv (fh_or_path);	1047	req->sv1 = newSVsv (fh_or_path);
733		1048
734	if (SvPOK (fh_or_path))	1049	if (SvPOK (req->sv1))
735	{	1050	{
736	req->type = ix;	1051	req->type = ix;
737	req->ptr1 = SvPVbyte_nolen (req->sv1);	1052	req->ptr1 = SvPVbyte_nolen (req->sv1);
738	}	1053	}
739	else	1054	else
740	{	1055	{
741	req->type = EIO_FSTAT;	1056	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
742	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1057	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
743	}	1058	}
744		1059
745	REQ_SEND;	1060	REQ_SEND;
746	}	1061	}
…		…
753		1068
754	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1069	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
755	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1070	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
756	req->sv1 = newSVsv (fh_or_path);	1071	req->sv1 = newSVsv (fh_or_path);
757		1072
758	if (SvPOK (fh_or_path))	1073	if (SvPOK (req->sv1))
759	{	1074	{
760	req->type = EIO_UTIME;	1075	req->type = EIO_UTIME;
761	req->ptr1 = SvPVbyte_nolen (req->sv1);	1076	req->ptr1 = SvPVbyte_nolen (req->sv1);
762	}	1077	}
763	else	1078	else
…		…
776	dREQ;	1091	dREQ;
777		1092
778	req->sv1 = newSVsv (fh_or_path);	1093	req->sv1 = newSVsv (fh_or_path);
779	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1094	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
780		1095
781	if (SvPOK (fh_or_path))	1096	if (SvPOK (req->sv1))
782	{	1097	{
783	req->type = EIO_TRUNCATE;	1098	req->type = EIO_TRUNCATE;
784	req->ptr1 = SvPVbyte_nolen (req->sv1);	1099	req->ptr1 = SvPVbyte_nolen (req->sv1);
785	}	1100	}
786	else	1101	else
…		…
794		1109
795	void	1110	void
796	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1111	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
797	ALIAS:	1112	ALIAS:
798	aio_chmod = EIO_CHMOD	1113	aio_chmod = EIO_CHMOD
799	aio_fchmod = EIO_FCHMOD
800	aio_mkdir = EIO_MKDIR	1114	aio_mkdir = EIO_MKDIR
801	PPCODE:	1115	PPCODE:
802	{	1116	{
803	dREQ;	1117	dREQ;
804		1118
805	req->type = ix;
806	req->int2 = mode;	1119	req->int2 = mode;
807	req->sv1 = newSVsv (fh_or_path);	1120	req->sv1 = newSVsv (fh_or_path);
808		1121
809	if (ix == EIO_FCHMOD)	1122	if (SvPOK (req->sv1))
810	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1123	{
		1124	req->type = ix;
		1125	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1126	}
811	else	1127	else
812	req->ptr1 = SvPVbyte_nolen (req->sv1);	1128	{
		1129	req->type = EIO_FCHMOD;
		1130	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1131	}
813		1132
814	REQ_SEND;	1133	REQ_SEND;
815	}	1134	}
816		1135
817	void	1136	void
…		…
822		1141
823	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1142	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
824	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1143	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
825	req->sv1 = newSVsv (fh_or_path);	1144	req->sv1 = newSVsv (fh_or_path);
826		1145
827	if (SvPOK (fh_or_path))	1146	if (SvPOK (req->sv1))
828	{	1147	{
829	req->type = EIO_CHOWN;	1148	req->type = EIO_CHOWN;
830	req->ptr1 = SvPVbyte_nolen (req->sv1);	1149	req->ptr1 = SvPVbyte_nolen (req->sv1);
831	}	1150	}
832	else	1151	else
…		…
837		1156
838	REQ_SEND;	1157	REQ_SEND;
839	}	1158	}
840		1159
841	void	1160	void
		1161	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1162	PPCODE:
		1163	{
		1164	dREQ;
		1165
		1166	req->type = EIO_READDIR;
		1167	req->sv1 = newSVsv (pathname);
		1168	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1169	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1170
		1171	if (flags & EIO_READDIR_DENTS)
		1172	req->int1 |= EIO_READDIR_CUSTOM2;
		1173
		1174	REQ_SEND;
		1175	}
		1176
		1177	void
842	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1178	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
843	ALIAS:	1179	ALIAS:
844	aio_unlink = EIO_UNLINK	1180	aio_unlink = EIO_UNLINK
845	aio_rmdir = EIO_RMDIR	1181	aio_rmdir = EIO_RMDIR
846	aio_readdir = EIO_READDIR	1182	aio_readdir = EIO_READDIR
…		…
888		1224
889	REQ_SEND;	1225	REQ_SEND;
890	}	1226	}
891		1227
892	void	1228	void
		1229	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1230	ALIAS:
		1231	aio_mtouch = EIO_MTOUCH
		1232	aio_msync = EIO_MSYNC
		1233	PPCODE:
		1234	{
		1235	STRLEN svlen;
		1236	char *svptr = SvPVbyte (data, svlen);
		1237	UV len = SvUV (length);
		1238
		1239	if (offset < 0)
		1240	offset += svlen;
		1241
		1242	if (offset < 0 || offset > svlen)
		1243	croak ("offset outside of scalar");
		1244
		1245	if (!SvOK (length) || len + offset > svlen)
		1246	len = svlen - offset;
		1247
		1248	{
		1249	dREQ;
		1250
		1251	req->type = ix;
		1252	req->sv2 = SvREFCNT_inc (data);
		1253	req->ptr2 = (char *)svptr + offset;
		1254	req->size = len;
		1255	req->int1 = flags;
		1256
		1257	REQ_SEND;
		1258	}
		1259	}
		1260
		1261	void
		1262	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1263	PPCODE:
		1264	{
		1265	STRLEN svlen;
		1266	char *svptr = SvPVbyte (data, svlen);
		1267	UV len = SvUV (length);
		1268
		1269	if (offset < 0)
		1270	offset += svlen;
		1271
		1272	if (offset < 0 || offset > svlen)
		1273	croak ("offset outside of scalar");
		1274
		1275	if (!SvOK (length) || len + offset > svlen)
		1276	len = svlen - offset;
		1277
		1278	{
		1279	dREQ;
		1280
		1281	req->type = EIO_MLOCK;
		1282	req->sv2 = SvREFCNT_inc (data);
		1283	req->ptr2 = (char *)svptr + offset;
		1284	req->size = len;
		1285
		1286	REQ_SEND;
		1287	}
		1288	}
		1289
		1290	void
		1291	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1292	PPCODE:
		1293	{
		1294	dREQ;
		1295
		1296	req->type = EIO_MLOCKALL;
		1297	req->int1 = flags;
		1298
		1299	REQ_SEND;
		1300	}
		1301
		1302	void
893	aio_busy (double delay, SV *callback=&PL_sv_undef)	1303	aio_busy (double delay, SV *callback=&PL_sv_undef)
894	PPCODE:	1304	PPCODE:
895	{	1305	{
896	dREQ;	1306	dREQ;
897		1307
…		…
901	REQ_SEND;	1311	REQ_SEND;
902	}	1312	}
903		1313
904	void	1314	void
905	aio_group (SV *callback=&PL_sv_undef)	1315	aio_group (SV *callback=&PL_sv_undef)
906	PROTOTYPE: ;$
907	PPCODE:	1316	PPCODE:
908	{	1317	{
909	dREQ;	1318	dREQ;
910		1319
911	req->type = EIO_GROUP;	1320	req->type = EIO_GROUP;
912		1321
913	eio_submit (req);	1322	req_submit (req);
914	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1323	XPUSHs (req_sv (req, aio_grp_stash));
915	}	1324	}
916		1325
917	void	1326	void
918	aio_nop (SV *callback=&PL_sv_undef)	1327	aio_nop (SV *callback=&PL_sv_undef)
919	ALIAS:	1328	ALIAS:
…		…
928	REQ_SEND;	1337	REQ_SEND;
929	}	1338	}
930		1339
931	int	1340	int
932	aioreq_pri (int pri = 0)	1341	aioreq_pri (int pri = 0)
933	PROTOTYPE: ;$
934	CODE:	1342	CODE:
935	RETVAL = next_pri - EIO_PRI_BIAS;	1343	RETVAL = next_pri;
936	if (items > 0)	1344	if (items > 0)
937	{	1345	{
938	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1346	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
939	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1347	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
940	next_pri = pri + EIO_PRI_BIAS;	1348	next_pri = pri;
941	}	1349	}
942	OUTPUT:	1350	OUTPUT:
943	RETVAL	1351	RETVAL
944		1352
945	void	1353	void
946	aioreq_nice (int nice = 0)	1354	aioreq_nice (int nice = 0)
947	CODE:	1355	CODE:
948	nice = next_pri - nice;	1356	nice = next_pri - nice;
949	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1357	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
950	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1358	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
951	next_pri = nice + EIO_PRI_BIAS;	1359	next_pri = nice;
952		1360
953	void	1361	void
954	flush ()	1362	flush ()
955	PROTOTYPE:
956	CODE:	1363	CODE:
957	while (eio_nreqs ())	1364	while (eio_nreqs ())
958	{	1365	{
959	poll_wait ();	1366	poll_wait ();
960	poll_cb ();	1367	poll_cb ();
961	}	1368	}
962		1369
963	int	1370	int
964	poll()	1371	poll ()
965	PROTOTYPE:
966	CODE:	1372	CODE:
967	poll_wait ();	1373	poll_wait ();
968	RETVAL = poll_cb ();	1374	RETVAL = poll_cb ();
969	OUTPUT:	1375	OUTPUT:
970	RETVAL	1376	RETVAL
971		1377
972	int	1378	int
973	poll_fileno()	1379	poll_fileno ()
974	PROTOTYPE:
975	CODE:	1380	CODE:
976	RETVAL = respipe [0];	1381	RETVAL = s_epipe_fd (&respipe);
977	OUTPUT:	1382	OUTPUT:
978	RETVAL	1383	RETVAL
979		1384
980	int	1385	int
981	poll_cb(...)	1386	poll_cb (...)
982	PROTOTYPE:	1387	PROTOTYPE:
983	CODE:	1388	CODE:
984	RETVAL = poll_cb ();	1389	RETVAL = poll_cb ();
985	OUTPUT:	1390	OUTPUT:
986	RETVAL	1391	RETVAL
987		1392
988	void	1393	void
989	poll_wait()	1394	poll_wait ()
990	PROTOTYPE:
991	CODE:	1395	CODE:
992	poll_wait ();	1396	poll_wait ();
993		1397
994	int	1398	int
995	nreqs()	1399	nreqs ()
996	PROTOTYPE:
997	CODE:	1400	CODE:
998	RETVAL = eio_nreqs ();	1401	RETVAL = eio_nreqs ();
999	OUTPUT:	1402	OUTPUT:
1000	RETVAL	1403	RETVAL
1001		1404
1002	int	1405	int
1003	nready()	1406	nready ()
1004	PROTOTYPE:
1005	CODE:	1407	CODE:
1006	RETVAL = eio_nready ();	1408	RETVAL = eio_nready ();
1007	OUTPUT:	1409	OUTPUT:
1008	RETVAL	1410	RETVAL
1009		1411
1010	int	1412	int
1011	npending()	1413	npending ()
1012	PROTOTYPE:
1013	CODE:	1414	CODE:
1014	RETVAL = eio_npending ();	1415	RETVAL = eio_npending ();
1015	OUTPUT:	1416	OUTPUT:
1016	RETVAL	1417	RETVAL
1017		1418
1018	int	1419	int
1019	nthreads()	1420	nthreads ()
1020	PROTOTYPE:
1021	CODE:	1421	CODE:
1022	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1422	RETVAL = eio_nthreads ();
1023	RETVAL = started;
1024	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1025	OUTPUT:	1423	OUTPUT:
1026	RETVAL	1424	RETVAL
		1425
		1426	int
		1427	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1428	CODE:
		1429	RETVAL = posix_fadvise (fh, offset, length, advice);
		1430	OUTPUT:
		1431	RETVAL
		1432
		1433	ssize_t
		1434	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1435	CODE:
		1436	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1437	OUTPUT:
		1438	RETVAL
		1439
		1440	void
		1441	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1442	PPCODE:
		1443	sv_unmagic (scalar, MMAP_MAGIC);
		1444	{
		1445	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1446	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1447	if (addr == (void *)-1)
		1448	XSRETURN_NO;
		1449
		1450	sv_force_normal (scalar);
		1451
		1452	/* we store the length in mg_obj, as namlen is I32 :/ */
		1453	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1454	->mg_obj = (SV *)length;
		1455
		1456	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1457
		1458	if (!(prot & PROT_WRITE))
		1459	SvREADONLY_on (scalar);
		1460
		1461	if (SvLEN (scalar))
		1462	Safefree (SvPVX (scalar));
		1463
		1464	SvPVX (scalar) = (char *)addr;
		1465	SvCUR_set (scalar, length);
		1466	SvLEN_set (scalar, 0);
		1467	SvPOK_only (scalar);
		1468
		1469	XSRETURN_YES;
		1470	}
		1471
		1472	void
		1473	munmap (SV *scalar)
		1474	CODE:
		1475	sv_unmagic (scalar, MMAP_MAGIC);
		1476
		1477	int
		1478	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1479	ALIAS:
		1480	mprotect = 1
		1481	CODE:
		1482	{
		1483	STRLEN svlen;
		1484	void *addr = SvPVbyte (scalar, svlen);
		1485	size_t len = SvUV (length);
		1486
		1487	if (offset < 0)
		1488	offset += svlen;
		1489
		1490	if (offset < 0 || offset > svlen)
		1491	croak ("offset outside of scalar");
		1492
		1493	if (!SvOK (length) || len + offset > svlen)
		1494	len = svlen - offset;
		1495
		1496	addr = (void *)(((intptr_t)addr) + offset);
		1497	eio_page_align (&addr, &len);
		1498
		1499	switch (ix)
		1500	{
		1501	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1502	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1503	}
		1504	}
		1505	OUTPUT:
		1506	RETVAL
		1507
		1508	int
		1509	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1510	CODE:
		1511	{
		1512	STRLEN svlen;
		1513	void *addr = SvPVbyte (scalar, svlen);
		1514	size_t len = SvUV (length);
		1515
		1516	if (offset < 0)
		1517	offset += svlen;
		1518
		1519	if (offset < 0 || offset > svlen)
		1520	croak ("offset outside of scalar");
		1521
		1522	if (!SvOK (length) || len + offset > svlen)
		1523	len = svlen - offset;
		1524
		1525	addr = (void *)(((intptr_t)addr) + offset);
		1526	eio_page_align (&addr, &len);
		1527	#if _POSIX_MEMLOCK
		1528	RETVAL = munlock (addr, len);
		1529	#else
		1530	RETVAL = ((errno = ENOSYS), -1);
		1531	#endif
		1532	}
		1533	OUTPUT:
		1534	RETVAL
		1535
		1536	int
		1537	munlockall ()
		1538	CODE:
		1539	#if _POSIX_MEMLOCK
		1540	munlockall ();
		1541	#else
		1542	RETVAL = -1;
		1543	errno = ENOSYS;
		1544	#endif
		1545	OUTPUT:
		1546	RETVAL
1027		1547
1028	void _on_next_submit (SV *cb)	1548	void _on_next_submit (SV *cb)
1029	CODE:	1549	CODE:
1030	SvREFCNT_dec (on_next_submit);	1550	SvREFCNT_dec (on_next_submit);
1031	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1551	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1039	CODE:	1559	CODE:
1040	eio_cancel (req);	1560	eio_cancel (req);
1041		1561
1042	void	1562	void
1043	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1563	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1044	CODE:	1564	PPCODE:
		1565	{
		1566	if (GIMME_V != G_VOID)
		1567	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1568
		1569	if (items > 1)
		1570	{
		1571	SV *cb_cv =get_cb (callback);
		1572
1045	SvREFCNT_dec (req->callback);	1573	SvREFCNT_dec (req->callback);
1046	req->callback = newSVsv (callback);	1574	req->callback = SvREFCNT_inc (cb_cv);
		1575	}
		1576	}
1047		1577
1048	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1578	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1049		1579
1050	void	1580	void
1051	add (aio_req grp, ...)	1581	add (aio_req grp, ...)
…		…
1083	AV *av;	1613	AV *av;
1084		1614
1085	grp->errorno = errno;	1615	grp->errorno = errno;
1086		1616
1087	av = newAV ();	1617	av = newAV ();
		1618	av_extend (av, items - 1);
1088		1619
1089	for (i = 1; i < items; ++i )	1620	for (i = 1; i < items; ++i )
1090	av_push (av, newSVsv (ST (i)));	1621	av_push (av, newSVsv (ST (i)));
1091		1622
1092	SvREFCNT_dec (grp->sv1);	1623	SvREFCNT_dec (grp->sv1);
…		…
1106	void	1637	void
1107	feed (aio_req grp, SV *callback=&PL_sv_undef)	1638	feed (aio_req grp, SV *callback=&PL_sv_undef)
1108	CODE:	1639	CODE:
1109	{	1640	{
1110	SvREFCNT_dec (grp->sv2);	1641	SvREFCNT_dec (grp->sv2);
1111	grp->sv2 = newSVsv (callback);	1642	grp->sv2 = newSVsv (callback);
		1643	grp->feed = aio_grp_feed;
1112		1644
1113	if (grp->int2 <= 0)	1645	if (grp->int2 <= 0)
1114	grp->int2 = 2;	1646	grp->int2 = 2;
1115		1647
1116	eio_grp_limit (grp, grp->int2);	1648	eio_grp_limit (grp, grp->int2);

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