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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 1.174 by root, Mon Nov 1 22:03:43 2010 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
		16	#include <sys/statvfs.h>
14	#include <limits.h>	17	#include <limits.h>
15	#include <fcntl.h>	18	#include <fcntl.h>
16	#include <sched.h>	19	#include <sched.h>
		20
		21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES
		22	# include <sys/mman.h>
		23	#endif
17		24
18	/* perl namespace pollution */	25	/* perl namespace pollution */
19	#undef VERSION	26	#undef VERSION
20		27
21	#ifdef _WIN32	28	#ifdef _WIN32
…		…
65	# include <signal.h>	72	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent	73	# define EIO_STRUCT_DIRENT struct dirent
67		74
68	#endif	75	#endif
69		76
		77	/* perl stupidly overrides readdir and maybe others */
		78	/* with thread-unsafe versions, imagine that :( */
		79	#undef readdir
		80	#undef opendir
		81	#undef closedir
		82
70	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
71		84
72	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
73	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
74	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
75	#else	90	#else
		91	# define VAL64 NV
76	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
77	#endif	94	#endif
78		95
79	static HV *stash;	96	/*****************************************************************************/
		97
		98	#if __GNUC__ >= 3
		99	# define expect(expr,value) __builtin_expect ((expr),(value))
		100	#else
		101	# define expect(expr,value) (expr)
		102	#endif
		103
		104	#define expect_false(expr) expect ((expr) != 0, 0)
		105	#define expect_true(expr) expect ((expr) != 0, 1)
		106
		107	/*****************************************************************************/
		108
80	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
		110	typedef int aio_rfd; /* read file desriptor */
		111	typedef int aio_wfd; /* write file descriptor */
81		112
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		114
85	#define EIO_COMMON \	115	#define EIO_REQ_MEMBERS \
86	SV *callback; \	116	SV *callback; \
87	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
88	STRLEN stroffset; \	118	STRLEN stroffset; \
89	SV *self	119	SV *self;
		120
		121	#define EIO_NO_WRAPPERS 1
90		122
91	#include "libeio/eio.h"	123	#include "libeio/eio.h"
		124
		125	#ifndef POSIX_FADV_NORMAL
		126	# define POSIX_FADV_NORMAL 0
		127	# define NO_FADVISE 1
		128	#endif
		129	#ifndef POSIX_FADV_SEQUENTIAL
		130	# define POSIX_FADV_SEQUENTIAL 0
		131	#endif
		132	#ifndef POSIX_FADV_RANDOM
		133	# define POSIX_FADV_RANDOM 0
		134	#endif
		135	#ifndef POSIX_FADV_NOREUSE
		136	# define POSIX_FADV_NOREUSE 0
		137	#endif
		138	#ifndef POSIX_FADV_WILLNEED
		139	# define POSIX_FADV_WILLNEED 0
		140	#endif
		141	#ifndef POSIX_FADV_DONTNEED
		142	# define POSIX_FADV_DONTNEED 0
		143	#endif
		144
		145	#if _XOPEN_SOURCE < 600 || NO_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	# define NO_MADVISE 1
		152	#endif
		153	#ifndef POSIX_MADV_SEQUENTIAL
		154	# define POSIX_MADV_SEQUENTIAL 0
		155	#endif
		156	#ifndef POSIX_MADV_RANDOM
		157	# define POSIX_MADV_RANDOM 0
		158	#endif
		159	#ifndef POSIX_MADV_WILLNEED
		160	# define POSIX_MADV_WILLNEED 0
		161	#endif
		162	#ifndef POSIX_MADV_DONTNEED
		163	# define POSIX_MADV_DONTNEED 0
		164	#endif
		165
		166	#if _XOPEN_SOURCE < 600 || NO_MADVISE
		167	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		168	#endif
		169
		170	#ifndef PROT_NONE
		171	# define PROT_NONE 0
		172	#endif
		173	#ifndef PROT_READ
		174	# define PROT_READ 0
		175	#endif
		176	#ifndef PROT_WRITE
		177	# define PROT_READ 0
		178	#endif
		179	#ifndef PROT_EXEC
		180	# define PROT_EXEC 0
		181	#endif
		182
		183	#ifndef ST_NODEV
		184	# define ST_NODEV 0
		185	#endif
		186	#ifndef ST_NOEXEC
		187	# define ST_NOEXEC 0
		188	#endif
		189	#ifndef ST_SYNCHRONOUS
		190	# define ST_SYNCHRONOUS 0
		191	#endif
		192	#ifndef ST_MANDLOCK
		193	# define ST_MANDLOCK 0
		194	#endif
		195	#ifndef ST_WRITE
		196	# define ST_WRITE 0
		197	#endif
		198	#ifndef ST_APPEND
		199	# define ST_APPEND 0
		200	#endif
		201	#ifndef ST_IMMUTABLE
		202	# define ST_IMMUTABLE 0
		203	#endif
		204	#ifndef ST_NOATIME
		205	# define ST_NOATIME 0
		206	#endif
		207	#ifndef ST_NODIRATIME
		208	# define ST_NODIRATIME 0
		209	#endif
		210	#ifndef ST_RELATIME
		211	# define ST_RELATIME 0
		212	#endif
		213
		214	#ifndef MAP_ANONYMOUS
		215	# ifdef MAP_ANON
		216	# define MAP_ANONYMOUS MAP_ANON
		217	# else
		218	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		219	# endif
		220	#endif
		221	#ifndef MAP_HUGETLB
		222	# define MAP_HUGETLB 0
		223	#endif
		224	#ifndef MAP_LOCKED
		225	# define MAP_LOCKED 0
		226	#endif
		227	#ifndef MAP_NORESERVE
		228	# define MAP_NORESERVE 0
		229	#endif
		230	#ifndef MAP_POPULATE
		231	# define MAP_POPULATE 0
		232	#endif
		233	#ifndef MAP_NONBLOCK
		234	# define MAP_NONBLOCK 0
		235	#endif
		236
		237	#ifndef PAGESIZE
		238	# define PAGESIZE sysconf (_SC_PAGESIZE)
		239	#endif
92		240
93	static int req_invoke (eio_req *req);	241	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	242	#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);	243	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	244	#define EIO_DESTROY(req) req_destroy (req)
99		245
100	enum {	246	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	247	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
105		251
106	typedef eio_req *aio_req;	252	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	253	typedef eio_req *aio_req_ornot;
108		254
109	static SV *on_next_submit;	255	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	256	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	257	static int max_outstanding;
112		258
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	259	static s_epipe respipe;
114		260
115	static void req_destroy (aio_req req);	261	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	262	static void req_cancel (aio_req req);
117		263
118	static void want_poll (void)	264	static void want_poll (void)
119	{	265	{
120	/* write a dummy byte to the pipe so fh becomes ready */	266	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	267	s_epipe_signal (&respipe);
122	}	268	}
123		269
124	static void done_poll (void)	270	static void done_poll (void)
125	{	271	{
126	/* read any signals sent by the worker threads */	272	/* read any signals sent by the worker threads */
127	char buf [4];	273	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	274	}
131		275
132	/* must be called at most once */	276	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	277	static SV *req_sv (aio_req req, HV *stash)
134	{	278	{
135	if (!req->self)	279	if (!req->self)
136	{	280	{
137	req->self = (SV *)newHV ();	281	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	282	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	283	}
140		284
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	285	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	286	}
143		287
144	static aio_req SvAIO_REQ (SV *sv)	288	static aio_req SvAIO_REQ (SV *sv)
145	{	289	{
146	MAGIC *mg;	290	MAGIC *mg;
147		291
148	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	292	if (!SvROK (sv)
		293	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		294	&& SvSTASH (SvRV (sv)) != aio_req_stash
		295	&& !sv_derived_from (sv, "IO::AIO::REQ")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	296	croak ("object of class IO::AIO::REQ expected");
150		297
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	298	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		299
153	return mg ? (aio_req)mg->mg_ptr : 0;	300	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	301	}
…		…
160	dSP;	307	dSP;
161		308
162	ENTER;	309	ENTER;
163	SAVETMPS;	310	SAVETMPS;
164	PUSHMARK (SP);	311	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	312	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	313	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	314	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	315	SPAGAIN;
169	FREETMPS;	316	FREETMPS;
170	LEAVE;	317	LEAVE;
…		…
173		320
174	static void req_submit (eio_req *req)	321	static void req_submit (eio_req *req)
175	{	322	{
176	eio_submit (req);	323	eio_submit (req);
177		324
178	if (on_next_submit)	325	if (expect_false (on_next_submit))
179	{	326	{
180	dSP;	327	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	328	SV *cb = sv_2mortal (on_next_submit);
182		329
183	on_next_submit = 0;	330	on_next_submit = 0;
…		…
188	}	335	}
189	}	336	}
190		337
191	static int req_invoke (eio_req *req)	338	static int req_invoke (eio_req *req)
192	{	339	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
197		342
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	343	if (!EIO_CANCELLED (req) && req->callback)
199	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
200	ENTER;	349	ENTER;
201	SAVETMPS;	350	SAVETMPS;
202	PUSHMARK (SP);	351	PUSHMARK (SP);
203	EXTEND (SP, 1);	352	EXTEND (SP, 1);
		353
		354	/* do not recreate the result IV from scratch each time */
		355	if (expect_true (sv_result_cache))
		356	{
		357	sv_result = sv_result_cache; sv_result_cache = 0;
		358	SvIV_set (sv_result, req->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
…		…
280	case EIO_BUSY:	505	case EIO_BUSY:
281	break;	506	break;
282		507
283	case EIO_READLINK:	508	case EIO_READLINK:
284	if (req->result > 0)	509	if (req->result > 0)
285	{	510	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;	511	break;
291		512
292	case EIO_STAT:	513	case EIO_STAT:
293	case EIO_LSTAT:	514	case EIO_LSTAT:
294	case EIO_FSTAT:	515	case EIO_FSTAT:
295	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	516	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
296	PL_laststatval = req->result;	517	PL_laststatval = req->result;
297	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	518	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
298	PUSHs (sv_2mortal (newSViv (req->result)));	519	PUSHs (sv_result);
299	break;	520	break;
300		521
301	case EIO_READ:	522	case EIO_READ:
		523	{
302	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));
303	*SvEND (req->sv2) = 0;	525	*SvEND (req->sv2) = 0;
304	PUSHs (sv_2mortal (newSViv (req->result)));	526	SvPOK_only (req->sv2);
		527	SvSETMAGIC (req->sv2);
		528	PUSHs (sv_result);
		529	}
305	break;	530	break;
306		531
307	case EIO_DUP2:	532	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
308	if (req->result > 0)	533	if (req->result > 0)
309	req->result = 0;	534	SvIV_set (sv_result, 0);
310	/* FALLTHROUGH */	535	/* FALLTHROUGH */
311		536
312	default:	537	default:
313	PUSHs (sv_2mortal (newSViv (req->result)));	538	PUSHs (sv_result);
314	break;	539	break;
315	}	540	}
316		541
317	errno = req->errorno;	542	errno = req->errorno;
318		543
319	PUTBACK;	544	PUTBACK;
320	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	545	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
321	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;
322		552
323	FREETMPS;	553	FREETMPS;
324	LEAVE;	554	LEAVE;
325		555
326	PUTBACK;	556	PUTBACK;
…		…
355	grp->sv2 = 0;	585	grp->sv2 = 0;
356		586
357	eio_grp_cancel (grp);	587	eio_grp_cancel (grp);
358	}	588	}
359		589
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	590	static void
367	create_respipe (void)	591	create_respipe (void)
368	{	592	{
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))	593	if (s_epipe_renew (&respipe))
378	#endif
379	croak ("unable to initialize result pipe");	594	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	}	595	}
403		596
404	static void poll_wait (void)	597	static void poll_wait (void)
405	{	598	{
406	fd_set rfd;
407
408	while (eio_nreqs ())	599	while (eio_nreqs ())
409	{	600	{
410	int size;	601	int size;
411		602
412	X_LOCK (reslock);	603	X_LOCK (reslock);
…		…
414	X_UNLOCK (reslock);	605	X_UNLOCK (reslock);
415		606
416	if (size)	607	if (size)
417	return;	608	return;
418		609
419	maybe_start_thread ();	610	etp_maybe_start_thread ();
420		611
421	FD_ZERO (&rfd);	612	s_epipe_wait (&respipe);
422	FD_SET (respipe [0], &rfd);
423
424	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
425	}	613	}
426	}	614	}
427		615
428	static int poll_cb (void)	616	static int poll_cb (void)
429	{	617	{
430	int res;	618	for (;;)
431
432	do
433	{	619	{
434	res = eio_poll ();	620	int res = eio_poll ();
435		621
436	if (res > 0)	622	if (res > 0)
437	croak (0);	623	croak (0);
		624
		625	if (!max_outstanding || max_outstanding > eio_nreqs ())
		626	return res;
		627
		628	poll_wait ();
438	}	629	}
439	while (max_outstanding && max_outstanding <= eio_nreqs ());
440
441	return res;
442	}	630	}
443		631
444	static void atfork_child (void)	632	static void atfork_child (void)
445	{	633	{
446	create_respipe ();	634	create_respipe ();
447	}	635	}
448		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	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		643	# define PROT_NONE 0
		644	# define PROT_WRITE 0
		645	# define MAP_PRIVATE 0
		646	# define MAP_SHARED 0
		647	# define MAP_FIXED 0
		648	#endif
		649
		650	#define MMAP_MAGIC PERL_MAGIC_ext
		651
		652	static int
		653	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		654	{
		655	int old_errno = errno;
		656	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		657	errno = old_errno;
		658
		659	mg->mg_obj = 0; /* just in case */
		660
		661	SvREADONLY_off (sv);
		662
		663	if (SvPVX (sv) != mg->mg_ptr)
		664	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		665
		666	SvCUR_set (sv, 0);
		667	SvPVX (sv) = 0;
		668	SvOK_off (sv);
		669
		670	return 0;
		671	}
		672
		673	static MGVTBL mmap_vtbl = {
		674	0, 0, 0, 0, mmap_free
		675	};
		676
		677	/*****************************************************************************/
		678
		679	static SV *
		680	get_cb (SV *cb_sv)
		681	{
		682	SvGETMAGIC (cb_sv);
		683	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		684	}
		685
449	#define dREQ \	686	#define dREQ \
		687	SV *cb_cv; \
450	aio_req req; \	688	aio_req req; \
451	int req_pri = next_pri; \	689	int req_pri = next_pri; \
452	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	690	next_pri = EIO_PRI_DEFAULT; \
453	\	691	\
454	if (SvOK (callback) && !SvROK (callback)) \	692	cb_cv = get_cb (callback); \
455	croak ("callback must be undef or of reference type"); \
456	\	693	\
457	Newz (0, req, 1, eio_req); \	694	Newz (0, req, 1, eio_req); \
458	if (!req) \	695	if (!req) \
459	croak ("out of memory during eio_req allocation"); \	696	croak ("out of memory during eio_req allocation"); \
460	\	697	\
461	req->callback = newSVsv (callback); \	698	req->callback = SvREFCNT_inc (cb_cv); \
462	req->pri = req_pri	699	req->pri = req_pri
463		700
464	#define REQ_SEND \	701	#define REQ_SEND \
		702	PUTBACK; \
465	req_submit (req); \	703	req_submit (req); \
		704	SPAGAIN; \
466	\	705	\
467	if (GIMME_V != G_VOID) \	706	if (GIMME_V != G_VOID) \
468	XPUSHs (req_sv (req, AIO_REQ_KLASS));	707	XPUSHs (req_sv (req, aio_req_stash));
469		708
470	MODULE = IO::AIO PACKAGE = IO::AIO	709	MODULE = IO::AIO PACKAGE = IO::AIO
471		710
472	PROTOTYPES: ENABLE	711	PROTOTYPES: ENABLE
473		712
474	BOOT:	713	BOOT:
475	{	714	{
476	stash = gv_stashpv ("IO::AIO", 1);	715	static const struct {
477		716	const char *name;
478	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	717	IV iv;
479	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	718	} *civ, const_iv[] = {
480	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	719	# define const_niv(name, value) { # name, (IV) value },
481	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	720	# define const_iv(name) { # name, (IV) name },
482	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	721	# define const_eio(name) { # name, (IV) EIO_ ## name },
		722	const_iv (EXDEV)
		723	const_iv (ENOSYS)
		724	const_iv (O_RDONLY)
		725	const_iv (O_WRONLY)
		726	const_iv (O_RDWR)
		727	const_iv (O_CREAT)
		728	const_iv (O_TRUNC)
		729	const_iv (O_EXCL)
		730	const_iv (O_APPEND)
483	#ifdef _WIN32	731	#ifndef _WIN32
484	X_MUTEX_CHECK (wrklock);	732	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	733	#endif
		734	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		735	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		736	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		737	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		738	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		739	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
495		740
		741	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		742	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		743	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		744	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		745	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		746
		747	const_iv (ST_RDONLY)
		748	const_iv (ST_NOSUID)
		749	const_iv (ST_NODEV)
		750	const_iv (ST_NOEXEC)
		751	const_iv (ST_SYNCHRONOUS)
		752	const_iv (ST_MANDLOCK)
		753	const_iv (ST_WRITE)
		754	const_iv (ST_APPEND)
		755	const_iv (ST_IMMUTABLE)
		756	const_iv (ST_NOATIME)
		757	const_iv (ST_NODIRATIME)
		758	const_iv (ST_RELATIME)
		759
		760	const_iv (PROT_NONE)
		761	const_iv (PROT_EXEC)
		762	const_iv (PROT_READ)
		763	const_iv (PROT_WRITE)
		764
		765	/*const_iv (MAP_FIXED)*/
		766	const_iv (MAP_PRIVATE)
		767	const_iv (MAP_SHARED)
		768	const_iv (MAP_ANONYMOUS)
		769
		770	/* linuxish */
		771	const_iv (MAP_HUGETLB)
		772	const_iv (MAP_LOCKED)
		773	const_iv (MAP_NORESERVE)
		774	const_iv (MAP_POPULATE)
		775	const_iv (MAP_NONBLOCK)
		776
		777	const_eio (MCL_FUTURE)
		778	const_eio (MCL_CURRENT)
		779
		780	const_eio (MS_ASYNC)
		781	const_eio (MS_INVALIDATE)
		782	const_eio (MS_SYNC)
		783
		784	const_eio (MT_MODIFY)
		785
		786	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		787	const_eio (SYNC_FILE_RANGE_WRITE)
		788	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		789
		790	const_eio (READDIR_DENTS)
		791	const_eio (READDIR_DIRS_FIRST)
		792	const_eio (READDIR_STAT_ORDER)
		793	const_eio (READDIR_FOUND_UNKNOWN)
		794
		795	const_eio (DT_UNKNOWN)
		796	const_eio (DT_FIFO)
		797	const_eio (DT_CHR)
		798	const_eio (DT_DIR)
		799	const_eio (DT_BLK)
		800	const_eio (DT_REG)
		801	const_eio (DT_LNK)
		802	const_eio (DT_SOCK)
		803	const_eio (DT_WHT)
		804	};
		805
		806	aio_stash = gv_stashpv ("IO::AIO" , 1);
		807	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		808	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		809
		810	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		811	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		812
		813	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		814
496	create_respipe ();	815	create_respipe ();
497		816
498	if (eio_init (want_poll, done_poll) < 0)	817	if (eio_init (want_poll, done_poll) < 0)
499	croak ("IO::AIO: unable to initialise eio library");	818	croak ("IO::AIO: unable to initialise eio library");
500		819
501	/* atfork child called in fifo order, so before eio's handler */	820	/* atfork child called in fifo order, so before eio's handler */
502	X_THREAD_ATFORK (0, 0, atfork_child);	821	X_THREAD_ATFORK (0, 0, atfork_child);
503	}	822	}
504		823
505	void	824	void
506	max_poll_reqs (int nreqs)	825	max_poll_reqs (int nreqs)
507	PROTOTYPE: $	826	PROTOTYPE: $
…		…
538	CODE:	857	CODE:
539	max_outstanding = maxreqs;	858	max_outstanding = maxreqs;
540		859
541	void	860	void
542	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	861	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
543	PROTOTYPE: $$$;$
544	PPCODE:	862	PPCODE:
545	{	863	{
546	dREQ;	864	dREQ;
547		865
548	req->type = EIO_OPEN;	866	req->type = EIO_OPEN;
…		…
554	REQ_SEND;	872	REQ_SEND;
555	}	873	}
556		874
557	void	875	void
558	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	876	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
559	PROTOTYPE: $;$
560	ALIAS:	877	ALIAS:
561	aio_fsync = EIO_FSYNC	878	aio_fsync = EIO_FSYNC
562	aio_fdatasync = EIO_FDATASYNC	879	aio_fdatasync = EIO_FDATASYNC
563	PPCODE:	880	PPCODE:
564	{	881	{
		882	int fd = s_fileno_croak (fh, 0);
565	dREQ;	883	dREQ;
566		884
567	req->type = ix;	885	req->type = ix;
568	req->sv1 = newSVsv (fh);	886	req->sv1 = newSVsv (fh);
569	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	887	req->int1 = fd;
570		888
571	REQ_SEND (req);	889	REQ_SEND (req);
572	}	890	}
573		891
574	void	892	void
		893	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		894	PPCODE:
		895	{
		896	int fd = s_fileno_croak (fh, 0);
		897	dREQ;
		898
		899	req->type = EIO_SYNC_FILE_RANGE;
		900	req->sv1 = newSVsv (fh);
		901	req->int1 = fd;
		902	req->offs = offset;
		903	req->size = nbytes;
		904	req->int2 = flags;
		905
		906	REQ_SEND (req);
		907	}
		908
		909	void
575	aio_close (SV *fh, SV *callback=&PL_sv_undef)	910	aio_close (SV *fh, SV *callback=&PL_sv_undef)
576	PROTOTYPE: $;$
577	PPCODE:	911	PPCODE:
578	{	912	{
579	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	913	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		914	int fd = s_fileno_croak (fh, 0);
580	dREQ;	915	dREQ;
581		916
582	if (close_pipe < 0)	917	if (close_pipe < 0)
583	{	918	{
584	int pipefd [2];	919	int pipefd [2];
…		…
592	}	927	}
593		928
594	req->type = EIO_DUP2;	929	req->type = EIO_DUP2;
595	req->int1 = close_pipe;	930	req->int1 = close_pipe;
596	req->sv2 = newSVsv (fh);	931	req->sv2 = newSVsv (fh);
597	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	932	req->int2 = fd;
598		933
599	REQ_SEND (req);	934	REQ_SEND (req);
600	}	935	}
601		936
602	void	937	void
603	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	938	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
604	ALIAS:	939	ALIAS:
605	aio_read = EIO_READ	940	aio_read = EIO_READ
606	aio_write = EIO_WRITE	941	aio_write = EIO_WRITE
607	PROTOTYPE: $$$$$;$
608	PPCODE:	942	PPCODE:
609	{	943	{
610	STRLEN svlen;	944	STRLEN svlen;
		945	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
611	char *svptr = SvPVbyte (data, svlen);	946	char *svptr = SvPVbyte (data, svlen);
612	UV len = SvUV (length);	947	UV len = SvUV (length);
613
614	SvUPGRADE (data, SVt_PV);
615	SvPOK_on (data);
616		948
617	if (dataoffset < 0)	949	if (dataoffset < 0)
618	dataoffset += svlen;	950	dataoffset += svlen;
619		951
620	if (dataoffset < 0 || dataoffset > svlen)	952	if (dataoffset < 0 || dataoffset > svlen)
…		…
626	if (!SvOK (length) || len + dataoffset > svlen)	958	if (!SvOK (length) || len + dataoffset > svlen)
627	len = svlen - dataoffset;	959	len = svlen - dataoffset;
628	}	960	}
629	else	961	else
630	{	962	{
631	/* read: grow scalar as necessary */	963	/* read: check type and grow scalar as necessary */
		964	SvUPGRADE (data, SVt_PV);
632	svptr = SvGROW (data, len + dataoffset + 1);	965	svptr = SvGROW (data, len + dataoffset + 1);
633	}	966	}
634		967
635	if (len < 0)
636	croak ("length must not be negative");
637
638	{	968	{
639	dREQ;	969	dREQ;
640		970
641	req->type = ix;	971	req->type = ix;
642	req->sv1 = newSVsv (fh);	972	req->sv1 = newSVsv (fh);
643	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	973	req->int1 = fd;
644	: IoOFP (sv_2io (fh)));
645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	974	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
646	req->size = len;	975	req->size = len;
647	req->sv2 = SvREFCNT_inc (data);	976	req->sv2 = SvREFCNT_inc (data);
648	req->ptr2 = (char *)svptr + dataoffset;	977	req->ptr2 = (char *)svptr + dataoffset;
649	req->stroffset = dataoffset;	978	req->stroffset = dataoffset;
…		…
658	}	987	}
659	}	988	}
660		989
661	void	990	void
662	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	991	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$;$
664	PPCODE:	992	PPCODE:
665	{	993	{
666	SV *data;	994	SV *data;
667	dREQ;	995	dREQ;
668
669	data = newSV (NAME_MAX);
670	SvPOK_on (data);
671		996
672	req->type = EIO_READLINK;	997	req->type = EIO_READLINK;
673	req->sv1 = newSVsv (path);	998	req->sv1 = newSVsv (path);
674	req->ptr1 = SvPVbyte_nolen (req->sv1);	999	req->ptr1 = SvPVbyte_nolen (req->sv1);
675	req->sv2 = data;
676	req->ptr2 = SvPVbyte_nolen (data);
677		1000
678	REQ_SEND;	1001	REQ_SEND;
679	}	1002	}
680		1003
681	void	1004	void
682	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1005	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
683	PROTOTYPE: $$$$;$
684	PPCODE:	1006	PPCODE:
685	{	1007	{
		1008	int ifd = s_fileno_croak (in_fh , 0);
		1009	int ofd = s_fileno_croak (out_fh, 1);
686	dREQ;	1010	dREQ;
687		1011
688	req->type = EIO_SENDFILE;	1012	req->type = EIO_SENDFILE;
689	req->sv1 = newSVsv (out_fh);	1013	req->sv1 = newSVsv (out_fh);
690	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1014	req->int1 = ofd;
691	req->sv2 = newSVsv (in_fh);	1015	req->sv2 = newSVsv (in_fh);
692	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1016	req->int2 = ifd;
693	req->offs = SvVAL64 (in_offset);	1017	req->offs = in_offset;
694	req->size = length;	1018	req->size = length;
695		1019
696	REQ_SEND;	1020	REQ_SEND;
697	}	1021	}
698		1022
699	void	1023	void
700	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1024	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
701	PROTOTYPE: $$$;$
702	PPCODE:	1025	PPCODE:
703	{	1026	{
		1027	int fd = s_fileno_croak (fh, 0);
704	dREQ;	1028	dREQ;
705		1029
706	req->type = EIO_READAHEAD;	1030	req->type = EIO_READAHEAD;
707	req->sv1 = newSVsv (fh);	1031	req->sv1 = newSVsv (fh);
708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1032	req->int1 = fd;
709	req->offs = SvVAL64 (offset);	1033	req->offs = offset;
710	req->size = length;	1034	req->size = length;
711		1035
712	REQ_SEND;	1036	REQ_SEND;
713	}	1037	}
714		1038
715	void	1039	void
716	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1040	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
717	ALIAS:	1041	ALIAS:
718	aio_stat = EIO_STAT	1042	aio_stat = EIO_STAT
719	aio_lstat = EIO_LSTAT	1043	aio_lstat = EIO_LSTAT
		1044	aio_statvfs = EIO_STATVFS
720	PPCODE:	1045	PPCODE:
721	{	1046	{
722	dREQ;	1047	dREQ;
723		1048
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);	1049	req->sv1 = newSVsv (fh_or_path);
733		1050
734	if (SvPOK (fh_or_path))	1051	if (SvPOK (req->sv1))
735	{	1052	{
736	req->type = ix;	1053	req->type = ix;
737	req->ptr1 = SvPVbyte_nolen (req->sv1);	1054	req->ptr1 = SvPVbyte_nolen (req->sv1);
738	}	1055	}
739	else	1056	else
740	{	1057	{
741	req->type = EIO_FSTAT;	1058	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
742	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1059	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
743	}	1060	}
744		1061
745	REQ_SEND;	1062	REQ_SEND;
746	}	1063	}
…		…
753		1070
754	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1071	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
755	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1072	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
756	req->sv1 = newSVsv (fh_or_path);	1073	req->sv1 = newSVsv (fh_or_path);
757		1074
758	if (SvPOK (fh_or_path))	1075	if (SvPOK (req->sv1))
759	{	1076	{
760	req->type = EIO_UTIME;	1077	req->type = EIO_UTIME;
761	req->ptr1 = SvPVbyte_nolen (req->sv1);	1078	req->ptr1 = SvPVbyte_nolen (req->sv1);
762	}	1079	}
763	else	1080	else
…		…
776	dREQ;	1093	dREQ;
777		1094
778	req->sv1 = newSVsv (fh_or_path);	1095	req->sv1 = newSVsv (fh_or_path);
779	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1096	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
780		1097
781	if (SvPOK (fh_or_path))	1098	if (SvPOK (req->sv1))
782	{	1099	{
783	req->type = EIO_TRUNCATE;	1100	req->type = EIO_TRUNCATE;
784	req->ptr1 = SvPVbyte_nolen (req->sv1);	1101	req->ptr1 = SvPVbyte_nolen (req->sv1);
785	}	1102	}
786	else	1103	else
…		…
794		1111
795	void	1112	void
796	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1113	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
797	ALIAS:	1114	ALIAS:
798	aio_chmod = EIO_CHMOD	1115	aio_chmod = EIO_CHMOD
799	aio_fchmod = EIO_FCHMOD
800	aio_mkdir = EIO_MKDIR	1116	aio_mkdir = EIO_MKDIR
801	PPCODE:	1117	PPCODE:
802	{	1118	{
803	dREQ;	1119	dREQ;
804		1120
805	req->type = ix;
806	req->int2 = mode;	1121	req->int2 = mode;
807	req->sv1 = newSVsv (fh_or_path);	1122	req->sv1 = newSVsv (fh_or_path);
808		1123
809	if (ix == EIO_FCHMOD)	1124	if (SvPOK (req->sv1))
810	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1125	{
		1126	req->type = ix;
		1127	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1128	}
811	else	1129	else
812	req->ptr1 = SvPVbyte_nolen (req->sv1);	1130	{
		1131	req->type = EIO_FCHMOD;
		1132	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1133	}
813		1134
814	REQ_SEND;	1135	REQ_SEND;
815	}	1136	}
816		1137
817	void	1138	void
…		…
822		1143
823	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1144	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
824	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1145	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
825	req->sv1 = newSVsv (fh_or_path);	1146	req->sv1 = newSVsv (fh_or_path);
826		1147
827	if (SvPOK (fh_or_path))	1148	if (SvPOK (req->sv1))
828	{	1149	{
829	req->type = EIO_CHOWN;	1150	req->type = EIO_CHOWN;
830	req->ptr1 = SvPVbyte_nolen (req->sv1);	1151	req->ptr1 = SvPVbyte_nolen (req->sv1);
831	}	1152	}
832	else	1153	else
…		…
837		1158
838	REQ_SEND;	1159	REQ_SEND;
839	}	1160	}
840		1161
841	void	1162	void
		1163	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1164	PPCODE:
		1165	{
		1166	dREQ;
		1167
		1168	req->type = EIO_READDIR;
		1169	req->sv1 = newSVsv (pathname);
		1170	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1171	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1172
		1173	if (flags & EIO_READDIR_DENTS)
		1174	req->int1 |= EIO_READDIR_CUSTOM2;
		1175
		1176	REQ_SEND;
		1177	}
		1178
		1179	void
842	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1180	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
843	ALIAS:	1181	ALIAS:
844	aio_unlink = EIO_UNLINK	1182	aio_unlink = EIO_UNLINK
845	aio_rmdir = EIO_RMDIR	1183	aio_rmdir = EIO_RMDIR
846	aio_readdir = EIO_READDIR	1184	aio_readdir = EIO_READDIR
…		…
888		1226
889	REQ_SEND;	1227	REQ_SEND;
890	}	1228	}
891		1229
892	void	1230	void
		1231	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1232	ALIAS:
		1233	aio_mtouch = EIO_MTOUCH
		1234	aio_msync = EIO_MSYNC
		1235	PPCODE:
		1236	{
		1237	STRLEN svlen;
		1238	char *svptr = SvPVbyte (data, svlen);
		1239	UV len = SvUV (length);
		1240
		1241	if (offset < 0)
		1242	offset += svlen;
		1243
		1244	if (offset < 0 || offset > svlen)
		1245	croak ("offset outside of scalar");
		1246
		1247	if (!SvOK (length) || len + offset > svlen)
		1248	len = svlen - offset;
		1249
		1250	{
		1251	dREQ;
		1252
		1253	req->type = ix;
		1254	req->sv2 = SvREFCNT_inc (data);
		1255	req->ptr2 = (char *)svptr + offset;
		1256	req->size = len;
		1257	req->int1 = flags;
		1258
		1259	REQ_SEND;
		1260	}
		1261	}
		1262
		1263	void
		1264	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1265	PPCODE:
		1266	{
		1267	STRLEN svlen;
		1268	char *svptr = SvPVbyte (data, svlen);
		1269	UV len = SvUV (length);
		1270
		1271	if (offset < 0)
		1272	offset += svlen;
		1273
		1274	if (offset < 0 || offset > svlen)
		1275	croak ("offset outside of scalar");
		1276
		1277	if (!SvOK (length) || len + offset > svlen)
		1278	len = svlen - offset;
		1279
		1280	{
		1281	dREQ;
		1282
		1283	req->type = EIO_MLOCK;
		1284	req->sv2 = SvREFCNT_inc (data);
		1285	req->ptr2 = (char *)svptr + offset;
		1286	req->size = len;
		1287
		1288	REQ_SEND;
		1289	}
		1290	}
		1291
		1292	void
		1293	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1294	PPCODE:
		1295	{
		1296	dREQ;
		1297
		1298	req->type = EIO_MLOCKALL;
		1299	req->int1 = flags;
		1300
		1301	REQ_SEND;
		1302	}
		1303
		1304	void
893	aio_busy (double delay, SV *callback=&PL_sv_undef)	1305	aio_busy (double delay, SV *callback=&PL_sv_undef)
894	PPCODE:	1306	PPCODE:
895	{	1307	{
896	dREQ;	1308	dREQ;
897		1309
…		…
901	REQ_SEND;	1313	REQ_SEND;
902	}	1314	}
903		1315
904	void	1316	void
905	aio_group (SV *callback=&PL_sv_undef)	1317	aio_group (SV *callback=&PL_sv_undef)
906	PROTOTYPE: ;$
907	PPCODE:	1318	PPCODE:
908	{	1319	{
909	dREQ;	1320	dREQ;
910		1321
911	req->type = EIO_GROUP;	1322	req->type = EIO_GROUP;
912		1323
913	eio_submit (req);	1324	req_submit (req);
914	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1325	XPUSHs (req_sv (req, aio_grp_stash));
915	}	1326	}
916		1327
917	void	1328	void
918	aio_nop (SV *callback=&PL_sv_undef)	1329	aio_nop (SV *callback=&PL_sv_undef)
919	ALIAS:	1330	ALIAS:
…		…
928	REQ_SEND;	1339	REQ_SEND;
929	}	1340	}
930		1341
931	int	1342	int
932	aioreq_pri (int pri = 0)	1343	aioreq_pri (int pri = 0)
933	PROTOTYPE: ;$
934	CODE:	1344	CODE:
935	RETVAL = next_pri - EIO_PRI_BIAS;	1345	RETVAL = next_pri;
936	if (items > 0)	1346	if (items > 0)
937	{	1347	{
938	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1348	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
939	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1349	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
940	next_pri = pri + EIO_PRI_BIAS;	1350	next_pri = pri;
941	}	1351	}
942	OUTPUT:	1352	OUTPUT:
943	RETVAL	1353	RETVAL
944		1354
945	void	1355	void
946	aioreq_nice (int nice = 0)	1356	aioreq_nice (int nice = 0)
947	CODE:	1357	CODE:
948	nice = next_pri - nice;	1358	nice = next_pri - nice;
949	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1359	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
950	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1360	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
951	next_pri = nice + EIO_PRI_BIAS;	1361	next_pri = nice;
952		1362
953	void	1363	void
954	flush ()	1364	flush ()
955	PROTOTYPE:
956	CODE:	1365	CODE:
957	while (eio_nreqs ())	1366	while (eio_nreqs ())
958	{	1367	{
959	poll_wait ();	1368	poll_wait ();
960	poll_cb ();	1369	poll_cb ();
961	}	1370	}
962		1371
963	int	1372	int
964	poll()	1373	poll ()
965	PROTOTYPE:
966	CODE:	1374	CODE:
967	poll_wait ();	1375	poll_wait ();
968	RETVAL = poll_cb ();	1376	RETVAL = poll_cb ();
969	OUTPUT:	1377	OUTPUT:
970	RETVAL	1378	RETVAL
971		1379
972	int	1380	int
973	poll_fileno()	1381	poll_fileno ()
974	PROTOTYPE:
975	CODE:	1382	CODE:
976	RETVAL = respipe [0];	1383	RETVAL = s_epipe_fd (&respipe);
977	OUTPUT:	1384	OUTPUT:
978	RETVAL	1385	RETVAL
979		1386
980	int	1387	int
981	poll_cb(...)	1388	poll_cb (...)
982	PROTOTYPE:	1389	PROTOTYPE:
983	CODE:	1390	CODE:
984	RETVAL = poll_cb ();	1391	RETVAL = poll_cb ();
985	OUTPUT:	1392	OUTPUT:
986	RETVAL	1393	RETVAL
987		1394
988	void	1395	void
989	poll_wait()	1396	poll_wait ()
990	PROTOTYPE:
991	CODE:	1397	CODE:
992	poll_wait ();	1398	poll_wait ();
993		1399
994	int	1400	int
995	nreqs()	1401	nreqs ()
996	PROTOTYPE:
997	CODE:	1402	CODE:
998	RETVAL = eio_nreqs ();	1403	RETVAL = eio_nreqs ();
999	OUTPUT:	1404	OUTPUT:
1000	RETVAL	1405	RETVAL
1001		1406
1002	int	1407	int
1003	nready()	1408	nready ()
1004	PROTOTYPE:
1005	CODE:	1409	CODE:
1006	RETVAL = eio_nready ();	1410	RETVAL = eio_nready ();
1007	OUTPUT:	1411	OUTPUT:
1008	RETVAL	1412	RETVAL
1009		1413
1010	int	1414	int
1011	npending()	1415	npending ()
1012	PROTOTYPE:
1013	CODE:	1416	CODE:
1014	RETVAL = eio_npending ();	1417	RETVAL = eio_npending ();
1015	OUTPUT:	1418	OUTPUT:
1016	RETVAL	1419	RETVAL
1017		1420
1018	int	1421	int
1019	nthreads()	1422	nthreads ()
1020	PROTOTYPE:
1021	CODE:	1423	CODE:
1022	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1424	RETVAL = eio_nthreads ();
1023	RETVAL = started;
1024	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1025	OUTPUT:	1425	OUTPUT:
1026	RETVAL	1426	RETVAL
		1427
		1428	int
		1429	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1430	CODE:
		1431	RETVAL = posix_fadvise (fh, offset, length, advice);
		1432	OUTPUT:
		1433	RETVAL
		1434
		1435	ssize_t
		1436	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1437	CODE:
		1438	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1439	OUTPUT:
		1440	RETVAL
		1441
		1442	void
		1443	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1444	PPCODE:
		1445	sv_unmagic (scalar, MMAP_MAGIC);
		1446	{
		1447	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1448	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1449	if (addr == (void *)-1)
		1450	XSRETURN_NO;
		1451
		1452	sv_force_normal (scalar);
		1453
		1454	/* we store the length in mg_obj, as namlen is I32 :/ */
		1455	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1456	->mg_obj = (SV *)length;
		1457
		1458	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1459
		1460	if (!(prot & PROT_WRITE))
		1461	SvREADONLY_on (scalar);
		1462
		1463	if (SvLEN (scalar))
		1464	Safefree (SvPVX (scalar));
		1465
		1466	SvPVX (scalar) = (char *)addr;
		1467	SvCUR_set (scalar, length);
		1468	SvLEN_set (scalar, 0);
		1469	SvPOK_only (scalar);
		1470
		1471	XSRETURN_YES;
		1472	}
		1473
		1474	void
		1475	munmap (SV *scalar)
		1476	CODE:
		1477	sv_unmagic (scalar, MMAP_MAGIC);
		1478
		1479	int
		1480	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1481	ALIAS:
		1482	mprotect = 1
		1483	CODE:
		1484	{
		1485	STRLEN svlen;
		1486	void *addr = SvPVbyte (scalar, svlen);
		1487	size_t len = SvUV (length);
		1488
		1489	if (offset < 0)
		1490	offset += svlen;
		1491
		1492	if (offset < 0 || offset > svlen)
		1493	croak ("offset outside of scalar");
		1494
		1495	if (!SvOK (length) || len + offset > svlen)
		1496	len = svlen - offset;
		1497
		1498	addr = (void *)(((intptr_t)addr) + offset);
		1499	eio_page_align (&addr, &len);
		1500
		1501	switch (ix)
		1502	{
		1503	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1504	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1505	}
		1506	}
		1507	OUTPUT:
		1508	RETVAL
		1509
		1510	int
		1511	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1512	CODE:
		1513	{
		1514	STRLEN svlen;
		1515	void *addr = SvPVbyte (scalar, svlen);
		1516	size_t len = SvUV (length);
		1517
		1518	if (offset < 0)
		1519	offset += svlen;
		1520
		1521	if (offset < 0 || offset > svlen)
		1522	croak ("offset outside of scalar");
		1523
		1524	if (!SvOK (length) || len + offset > svlen)
		1525	len = svlen - offset;
		1526
		1527	addr = (void *)(((intptr_t)addr) + offset);
		1528	eio_page_align (&addr, &len);
		1529	#if _POSIX_MEMLOCK
		1530	RETVAL = munlock (addr, len);
		1531	#else
		1532	RETVAL = ((errno = ENOSYS), -1);
		1533	#endif
		1534	}
		1535	OUTPUT:
		1536	RETVAL
		1537
		1538	int
		1539	munlockall ()
		1540	CODE:
		1541	#if _POSIX_MEMLOCK
		1542	munlockall ();
		1543	#else
		1544	RETVAL = -1;
		1545	errno = ENOSYS;
		1546	#endif
		1547	OUTPUT:
		1548	RETVAL
1027		1549
1028	void _on_next_submit (SV *cb)	1550	void _on_next_submit (SV *cb)
1029	CODE:	1551	CODE:
1030	SvREFCNT_dec (on_next_submit);	1552	SvREFCNT_dec (on_next_submit);
1031	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1553	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1039	CODE:	1561	CODE:
1040	eio_cancel (req);	1562	eio_cancel (req);
1041		1563
1042	void	1564	void
1043	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1565	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1044	CODE:	1566	PPCODE:
		1567	{
		1568	if (GIMME_V != G_VOID)
		1569	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1570
		1571	if (items > 1)
		1572	{
		1573	SV *cb_cv =get_cb (callback);
		1574
1045	SvREFCNT_dec (req->callback);	1575	SvREFCNT_dec (req->callback);
1046	req->callback = newSVsv (callback);	1576	req->callback = SvREFCNT_inc (cb_cv);
		1577	}
		1578	}
1047		1579
1048	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1580	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1049		1581
1050	void	1582	void
1051	add (aio_req grp, ...)	1583	add (aio_req grp, ...)
…		…
1083	AV *av;	1615	AV *av;
1084		1616
1085	grp->errorno = errno;	1617	grp->errorno = errno;
1086		1618
1087	av = newAV ();	1619	av = newAV ();
		1620	av_extend (av, items - 1);
1088		1621
1089	for (i = 1; i < items; ++i )	1622	for (i = 1; i < items; ++i )
1090	av_push (av, newSVsv (ST (i)));	1623	av_push (av, newSVsv (ST (i)));
1091		1624
1092	SvREFCNT_dec (grp->sv1);	1625	SvREFCNT_dec (grp->sv1);
…		…
1106	void	1639	void
1107	feed (aio_req grp, SV *callback=&PL_sv_undef)	1640	feed (aio_req grp, SV *callback=&PL_sv_undef)
1108	CODE:	1641	CODE:
1109	{	1642	{
1110	SvREFCNT_dec (grp->sv2);	1643	SvREFCNT_dec (grp->sv2);
1111	grp->sv2 = newSVsv (callback);	1644	grp->sv2 = newSVsv (callback);
		1645	grp->feed = aio_grp_feed;
1112		1646
1113	if (grp->int2 <= 0)	1647	if (grp->int2 <= 0)
1114	grp->int2 = 2;	1648	grp->int2 = 2;
1115		1649
1116	eio_grp_limit (grp, grp->int2);	1650	eio_grp_limit (grp, grp->int2);

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