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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.117 by root, Sat May 10 20:02:09 2008 UTC vs.
Revision 1.177 by root, Thu Dec 30 07:19:31 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
		24
		25	/* perl namespace pollution */
		26	#undef VERSION
17		27
18	#ifdef _WIN32	28	#ifdef _WIN32
19		29
20	# define EIO_STRUCT_DIRENT Direntry_t	30	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc	31	# undef malloc
…		…
62	# include <signal.h>	72	# include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent	73	# define EIO_STRUCT_DIRENT struct dirent
64		74
65	#endif	75	#endif
66		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
67	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
68		84
69	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
70	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
71	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
72	#else	90	#else
		91	# define VAL64 NV
73	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
74	#endif	94	#endif
75		95
76	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
77	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 */
78		112
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		114
82	#define EIO_COMMON \	115	#define EIO_REQ_MEMBERS \
83	SV *callback; \	116	SV *callback; \
84	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
85	STRLEN stroffset; \	118	STRLEN stroffset; \
86	SV *self	119	SV *self;
87		120
		121	#define EIO_NO_WRAPPERS 1
		122
		123	#include "libeio/config.h"
88	#include "libeio/eio.h"	124	#include "libeio/eio.h"
		125
		126	#ifndef POSIX_FADV_NORMAL
		127	# define POSIX_FADV_NORMAL 0
		128	#endif
		129	#ifndef POSIX_FADV_SEQUENTIAL
		130	# define POSIX_FADV_SEQUENTIAL 0
		131	#endif
		132	#ifndef POSIX_FADV_RANDOM
		133	# define POSIX_FADV_RANDOM 0
		134	#endif
		135	#ifndef POSIX_FADV_NOREUSE
		136	# define POSIX_FADV_NOREUSE 0
		137	#endif
		138	#ifndef POSIX_FADV_WILLNEED
		139	# define POSIX_FADV_WILLNEED 0
		140	#endif
		141	#ifndef POSIX_FADV_DONTNEED
		142	# define POSIX_FADV_DONTNEED 0
		143	#endif
		144
		145	#if !HAVE_POSIX_FADVISE
		146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		147	#endif
		148
		149	#ifndef POSIX_MADV_NORMAL
		150	# define POSIX_MADV_NORMAL 0
		151	#endif
		152	#ifndef POSIX_MADV_SEQUENTIAL
		153	# define POSIX_MADV_SEQUENTIAL 0
		154	#endif
		155	#ifndef POSIX_MADV_RANDOM
		156	# define POSIX_MADV_RANDOM 0
		157	#endif
		158	#ifndef POSIX_MADV_WILLNEED
		159	# define POSIX_MADV_WILLNEED 0
		160	#endif
		161	#ifndef POSIX_MADV_DONTNEED
		162	# define POSIX_MADV_DONTNEED 0
		163	#endif
		164
		165	#if !HAVE_POSIX_MADVISE
		166	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		167	#endif
		168
		169	#ifndef PROT_NONE
		170	# define PROT_NONE 0
		171	#endif
		172	#ifndef PROT_READ
		173	# define PROT_READ 0
		174	#endif
		175	#ifndef PROT_WRITE
		176	# define PROT_READ 0
		177	#endif
		178	#ifndef PROT_EXEC
		179	# define PROT_EXEC 0
		180	#endif
		181
		182	#ifndef ST_NODEV
		183	# define ST_NODEV 0
		184	#endif
		185	#ifndef ST_NOEXEC
		186	# define ST_NOEXEC 0
		187	#endif
		188	#ifndef ST_SYNCHRONOUS
		189	# define ST_SYNCHRONOUS 0
		190	#endif
		191	#ifndef ST_MANDLOCK
		192	# define ST_MANDLOCK 0
		193	#endif
		194	#ifndef ST_WRITE
		195	# define ST_WRITE 0
		196	#endif
		197	#ifndef ST_APPEND
		198	# define ST_APPEND 0
		199	#endif
		200	#ifndef ST_IMMUTABLE
		201	# define ST_IMMUTABLE 0
		202	#endif
		203	#ifndef ST_NOATIME
		204	# define ST_NOATIME 0
		205	#endif
		206	#ifndef ST_NODIRATIME
		207	# define ST_NODIRATIME 0
		208	#endif
		209	#ifndef ST_RELATIME
		210	# define ST_RELATIME 0
		211	#endif
		212
		213	#ifndef MAP_ANONYMOUS
		214	# ifdef MAP_ANON
		215	# define MAP_ANONYMOUS MAP_ANON
		216	# else
		217	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		218	# endif
		219	#endif
		220	#ifndef MAP_HUGETLB
		221	# define MAP_HUGETLB 0
		222	#endif
		223	#ifndef MAP_LOCKED
		224	# define MAP_LOCKED 0
		225	#endif
		226	#ifndef MAP_NORESERVE
		227	# define MAP_NORESERVE 0
		228	#endif
		229	#ifndef MAP_POPULATE
		230	# define MAP_POPULATE 0
		231	#endif
		232	#ifndef MAP_NONBLOCK
		233	# define MAP_NONBLOCK 0
		234	#endif
		235
		236	#ifndef PAGESIZE
		237	# define PAGESIZE sysconf (_SC_PAGESIZE)
		238	#endif
89		239
90	static int req_invoke (eio_req *req);	240	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	241	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	242	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	243	#define EIO_DESTROY(req) req_destroy (req)
96		244
97	enum {	245	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	246	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
102		250
103	typedef eio_req *aio_req;	251	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	252	typedef eio_req *aio_req_ornot;
105		253
106	static SV *on_next_submit;	254	static SV *on_next_submit;
107	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	255	static int next_pri = EIO_PRI_DEFAULT;
108	static int max_outstanding;	256	static int max_outstanding;
109		257
110	static int respipe_osf [2], respipe [2] = { -1, -1 };	258	static s_epipe respipe;
111		259
112	static void req_destroy (aio_req req);	260	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	261	static void req_cancel (aio_req req);
114		262
115	static void want_poll (void)	263	static void want_poll (void)
116	{	264	{
117	/* write a dummy byte to the pipe so fh becomes ready */	265	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	266	s_epipe_signal (&respipe);
119	}	267	}
120		268
121	static void done_poll (void)	269	static void done_poll (void)
122	{	270	{
123	/* read any signals sent by the worker threads */	271	/* read any signals sent by the worker threads */
124	char buf [4];	272	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	273	}
128		274
129	/* must be called at most once */	275	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	276	static SV *req_sv (aio_req req, HV *stash)
131	{	277	{
132	if (!req->self)	278	if (!req->self)
133	{	279	{
134	req->self = (SV *)newHV ();	280	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	281	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	282	}
137		283
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	284	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	285	}
140		286
141	static aio_req SvAIO_REQ (SV *sv)	287	static aio_req SvAIO_REQ (SV *sv)
142	{	288	{
143	MAGIC *mg;	289	MAGIC *mg;
144		290
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	291	if (!SvROK (sv)
		292	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		293	&& SvSTASH (SvRV (sv)) != aio_req_stash
		294	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	295	croak ("object of class IO::AIO::REQ expected");
147		296
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	297	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		298
150	return mg ? (aio_req)mg->mg_ptr : 0;	299	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	300	}
…		…
157	dSP;	306	dSP;
158		307
159	ENTER;	308	ENTER;
160	SAVETMPS;	309	SAVETMPS;
161	PUSHMARK (SP);	310	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	311	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	312	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	313	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	314	SPAGAIN;
166	FREETMPS;	315	FREETMPS;
167	LEAVE;	316	LEAVE;
…		…
170		319
171	static void req_submit (eio_req *req)	320	static void req_submit (eio_req *req)
172	{	321	{
173	eio_submit (req);	322	eio_submit (req);
174		323
175	if (on_next_submit)	324	if (expect_false (on_next_submit))
176	{	325	{
177	dSP;	326	dSP;
178	SV *cb = sv_2mortal (on_next_submit);	327	SV *cb = sv_2mortal (on_next_submit);
179		328
180	on_next_submit = 0;	329	on_next_submit = 0;
…		…
185	}	334	}
186	}	335	}
187		336
188	static int req_invoke (eio_req *req)	337	static int req_invoke (eio_req *req)
189	{	338	{
190	dSP;
191
192	if (req->flags & FLAG_SV2_RO_OFF)	339	if (req->flags & FLAG_SV2_RO_OFF)
193	SvREADONLY_off (req->sv2);	340	SvREADONLY_off (req->sv2);
194		341
195	if (!EIO_CANCELLED (req) && SvOK (req->callback))	342	if (!EIO_CANCELLED (req) && req->callback)
196	{	343	{
		344	dSP;
		345	static SV *sv_result_cache; /* caches the result integer SV */
		346	SV *sv_result;
		347
197	ENTER;	348	ENTER;
198	SAVETMPS;	349	SAVETMPS;
199	PUSHMARK (SP);	350	PUSHMARK (SP);
200	EXTEND (SP, 1);	351	EXTEND (SP, 1);
		352
		353	/* do not recreate the result IV from scratch each time */
		354	if (expect_true (sv_result_cache))
		355	{
		356	sv_result = sv_result_cache; sv_result_cache = 0;
		357	SvIV_set (sv_result, req->result);
		358	SvIOK_only (sv_result);
		359	}
		360	else
		361	{
		362	sv_result = newSViv (req->result);
		363	SvREADONLY_on (sv_result);
		364	}
201		365
202	switch (req->type)	366	switch (req->type)
203	{	367	{
204	case EIO_READDIR:	368	case EIO_READDIR:
205	{	369	{
206	SV *rv = &PL_sv_undef;	370	SV *rv = &PL_sv_undef;
207		371
208	if (req->result >= 0)	372	if (req->result >= 0)
209	{	373	{
210	int i;	374	int i;
211	char *buf = req->ptr2;	375	char *names = (char *)req->ptr2;
		376	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
212	AV *av = newAV ();	377	AV *av = newAV ();
213		378
214	av_extend (av, req->result - 1);	379	av_extend (av, req->result - 1);
215		380
216	for (i = 0; i < req->result; ++i)	381	for (i = 0; i < req->result; ++i)
217	{	382	{
218	SV *sv = newSVpv (buf, 0);	383	if (req->int1 & EIO_READDIR_DENTS)
		384	{
		385	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
219		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
220	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);
221	buf += SvCUR (sv) + 1;	415	names += SvCUR (name) + 1;
		416	}
222	}	417	}
223		418
224	rv = sv_2mortal (newRV_noinc ((SV *)av));	419	rv = sv_2mortal (newRV_noinc ((SV *)av));
225	}	420	}
226		421
227	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))));
228	}	426	}
229	break;	427	break;
230		428
231	case EIO_OPEN:	429	case EIO_OPEN:
232	{	430	{
…		…
238	GV *gv = (GV *)sv_newmortal ();	436	GV *gv = (GV *)sv_newmortal ();
239	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	437	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
240	char sym [64];	438	char sym [64];
241	int symlen;	439	int symlen;
242		440
243	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	441	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
244	gv_init (gv, stash, sym, symlen, 0);	442	gv_init (gv, aio_stash, sym, symlen, 0);
245		443
246	symlen = snprintf (	444	symlen = snprintf (
247	sym,	445	sym,
248	sizeof (sym),	446	sizeof (sym),
249	"%s&=%d",	447	"%s&=%d",
250	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	448	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
251	req->result	449	(int)req->result
252	);	450	);
253		451
254	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	452	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
255	fh = (SV *)gv;	453	fh = (SV *)gv;
256	}	454	}
257		455
258	PUSHs (fh);	456	PUSHs (fh);
259	}	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
260	break;	488	break;
261		489
262	case EIO_GROUP:	490	case EIO_GROUP:
263	req->int1 = 2; /* mark group as finished */	491	req->int1 = 2; /* mark group as finished */
264		492
…		…
277	case EIO_BUSY:	505	case EIO_BUSY:
278	break;	506	break;
279		507
280	case EIO_READLINK:	508	case EIO_READLINK:
281	if (req->result > 0)	509	if (req->result > 0)
282	{	510	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
283	SvCUR_set (req->sv2, req->result);
284	*SvEND (req->sv2) = 0;
285	PUSHs (req->sv2);
286	}
287	break;	511	break;
288		512
289	case EIO_STAT:	513	case EIO_STAT:
290	case EIO_LSTAT:	514	case EIO_LSTAT:
291	case EIO_FSTAT:	515	case EIO_FSTAT:
292	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	516	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
293	PL_laststatval = req->result;	517	PL_laststatval = req->result;
294	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	518	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
295	PUSHs (sv_2mortal (newSViv (req->result)));	519	PUSHs (sv_result);
296	break;	520	break;
297		521
298	case EIO_READ:	522	case EIO_READ:
		523	{
299	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));
300	*SvEND (req->sv2) = 0;	525	*SvEND (req->sv2) = 0;
301	PUSHs (sv_2mortal (newSViv (req->result)));	526	SvPOK_only (req->sv2);
		527	SvSETMAGIC (req->sv2);
		528	PUSHs (sv_result);
		529	}
302	break;	530	break;
303		531
304	case EIO_DUP2:	532	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
305	if (req->result > 0)	533	if (req->result > 0)
306	req->result = 0;	534	SvIV_set (sv_result, 0);
307	/* FALLTHROUGH */	535	/* FALLTHROUGH */
308		536
309	default:	537	default:
310	PUSHs (sv_2mortal (newSViv (req->result)));	538	PUSHs (sv_result);
311	break;	539	break;
312	}	540	}
313		541
314	errno = req->errorno;	542	errno = req->errorno;
315		543
316	PUTBACK;	544	PUTBACK;
317	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	545	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
318	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;
319		552
320	FREETMPS;	553	FREETMPS;
321	LEAVE;	554	LEAVE;
322		555
323	PUTBACK;	556	PUTBACK;
…		…
352	grp->sv2 = 0;	585	grp->sv2 = 0;
353		586
354	eio_grp_cancel (grp);	587	eio_grp_cancel (grp);
355	}	588	}
356		589
357	#ifdef USE_SOCKETS_AS_HANDLES
358	# define TO_SOCKET(x) (win32_get_osfhandle (x))
359	#else
360	# define TO_SOCKET(x) (x)
361	#endif
362
363	static void	590	static void
364	create_respipe (void)	591	create_respipe (void)
365	{	592	{
366	int old_readfd = respipe [0];
367
368	if (respipe [1] >= 0)
369	respipe_close (TO_SOCKET (respipe [1]));
370
371	#ifdef _WIN32
372	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
373	#else
374	if (pipe (respipe))	593	if (s_epipe_renew (&respipe))
375	#endif
376	croak ("unable to initialize result pipe");	594	croak ("IO::AIO: unable to initialize result pipe");
377
378	if (old_readfd >= 0)
379	{
380	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
381	croak ("unable to initialize result pipe(2)");
382
383	respipe_close (respipe [0]);
384	respipe [0] = old_readfd;
385	}
386
387	#ifdef _WIN32
388	int arg = 1;
389	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
390	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
391	#else
392	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
393	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
394	#endif
395	croak ("unable to initialize result pipe(3)");
396
397	respipe_osf [0] = TO_SOCKET (respipe [0]);
398	respipe_osf [1] = TO_SOCKET (respipe [1]);
399	}	595	}
400		596
401	static void poll_wait (void)	597	static void poll_wait (void)
402	{	598	{
403	fd_set rfd;
404
405	while (eio_nreqs ())	599	while (eio_nreqs ())
406	{	600	{
407	int size;	601	int size;
408		602
409	X_LOCK (reslock);	603	X_LOCK (reslock);
…		…
411	X_UNLOCK (reslock);	605	X_UNLOCK (reslock);
412		606
413	if (size)	607	if (size)
414	return;	608	return;
415		609
416	maybe_start_thread ();	610	etp_maybe_start_thread ();
417		611
418	FD_ZERO (&rfd);	612	s_epipe_wait (&respipe);
419	FD_SET (respipe [0], &rfd);
420
421	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
422	}	613	}
423	}	614	}
424		615
425	static int poll_cb (void)	616	static int poll_cb (void)
426	{	617	{
427	int res;	618	for (;;)
428
429	do
430	{	619	{
431	res = eio_poll ();	620	int res = eio_poll ();
432		621
433	if (res > 0)	622	if (res > 0)
434	croak (0);	623	croak (0);
		624
		625	if (!max_outstanding || max_outstanding > eio_nreqs ())
		626	return res;
		627
		628	poll_wait ();
435	}	629	}
436	while (max_outstanding && max_outstanding <= eio_nreqs ());
437
438	return res;
439	}	630	}
440		631
441	static void atfork_child (void)	632	static void atfork_child (void)
442	{	633	{
443	create_respipe ();	634	create_respipe ();
444	}	635	}
445		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
446	#define dREQ \	686	#define dREQ \
		687	SV *cb_cv; \
447	aio_req req; \	688	aio_req req; \
448	int req_pri = next_pri; \	689	int req_pri = next_pri; \
449	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	690	next_pri = EIO_PRI_DEFAULT; \
450	\	691	\
451	if (SvOK (callback) && !SvROK (callback)) \	692	cb_cv = get_cb (callback); \
452	croak ("callback must be undef or of reference type"); \
453	\	693	\
454	Newz (0, req, 1, eio_req); \	694	Newz (0, req, 1, eio_req); \
455	if (!req) \	695	if (!req) \
456	croak ("out of memory during eio_req allocation"); \	696	croak ("out of memory during eio_req allocation"); \
457	\	697	\
458	req->callback = newSVsv (callback); \	698	req->callback = SvREFCNT_inc (cb_cv); \
459	req->pri = req_pri	699	req->pri = req_pri
460		700
461	#define REQ_SEND \	701	#define REQ_SEND \
		702	PUTBACK; \
462	req_submit (req); \	703	req_submit (req); \
		704	SPAGAIN; \
463	\	705	\
464	if (GIMME_V != G_VOID) \	706	if (GIMME_V != G_VOID) \
465	XPUSHs (req_sv (req, AIO_REQ_KLASS));	707	XPUSHs (req_sv (req, aio_req_stash));
466		708
467	MODULE = IO::AIO PACKAGE = IO::AIO	709	MODULE = IO::AIO PACKAGE = IO::AIO
468		710
469	PROTOTYPES: ENABLE	711	PROTOTYPES: ENABLE
470		712
471	BOOT:	713	BOOT:
472	{	714	{
473	stash = gv_stashpv ("IO::AIO", 1);	715	static const struct {
474		716	const char *name;
475	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	717	IV iv;
476	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	718	} *civ, const_iv[] = {
477	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	719	# define const_niv(name, value) { # name, (IV) value },
478	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	720	# define const_iv(name) { # name, (IV) name },
479	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)
480	#ifdef _WIN32	731	#ifndef _WIN32
481	X_MUTEX_CHECK (wrklock);	732	const_iv (S_IFIFO)
482	X_MUTEX_CHECK (reslock);
483	X_MUTEX_CHECK (reqlock);
484	X_MUTEX_CHECK (reqwait);
485	X_MUTEX_CHECK (preadwritelock);
486	X_MUTEX_CHECK (readdirlock);
487
488	X_COND_CHECK (reqwait);
489	#else
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
491	#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)
492		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
493	create_respipe ();	815	create_respipe ();
494		816
495	if (eio_init (want_poll, done_poll) < 0)	817	if (eio_init (want_poll, done_poll) < 0)
496	croak ("IO::AIO: unable to initialise eio library");	818	croak ("IO::AIO: unable to initialise eio library");
497		819
498	/* atfork child called in fifo order, so before eio's handler */	820	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);	821	X_THREAD_ATFORK (0, 0, atfork_child);
500	}	822	}
501		823
502	void	824	void
503	max_poll_reqs (int nreqs)	825	max_poll_reqs (int nreqs)
504	PROTOTYPE: $	826	PROTOTYPE: $
…		…
535	CODE:	857	CODE:
536	max_outstanding = maxreqs;	858	max_outstanding = maxreqs;
537		859
538	void	860	void
539	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)
540	PROTOTYPE: $$$;$
541	PPCODE:	862	PPCODE:
542	{	863	{
543	dREQ;	864	dREQ;
544		865
545	req->type = EIO_OPEN;	866	req->type = EIO_OPEN;
…		…
551	REQ_SEND;	872	REQ_SEND;
552	}	873	}
553		874
554	void	875	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	876	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	877	ALIAS:
558	aio_fsync = EIO_FSYNC	878	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	879	aio_fdatasync = EIO_FDATASYNC
560	PPCODE:	880	PPCODE:
561	{	881	{
		882	int fd = s_fileno_croak (fh, 0);
562	dREQ;	883	dREQ;
563		884
564	req->type = ix;	885	req->type = ix;
565	req->sv1 = newSVsv (fh);	886	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	887	req->int1 = fd;
567		888
568	REQ_SEND (req);	889	REQ_SEND (req);
569	}	890	}
570		891
571	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
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	910	aio_close (SV *fh, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	911	PPCODE:
575	{	912	{
576	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);
577	dREQ;	915	dREQ;
578		916
579	if (close_pipe < 0)	917	if (close_pipe < 0)
580	{	918	{
581	int pipefd [2];	919	int pipefd [2];
…		…
589	}	927	}
590		928
591	req->type = EIO_DUP2;	929	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	930	req->int1 = close_pipe;
593	req->sv2 = newSVsv (fh);	931	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	932	req->int2 = fd;
595		933
596	REQ_SEND (req);	934	REQ_SEND (req);
597	}	935	}
598		936
599	void	937	void
600	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)
601	ALIAS:	939	ALIAS:
602	aio_read = EIO_READ	940	aio_read = EIO_READ
603	aio_write = EIO_WRITE	941	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	942	PPCODE:
606	{	943	{
607	STRLEN svlen;	944	STRLEN svlen;
		945	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	946	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	947	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		948
614	if (dataoffset < 0)	949	if (dataoffset < 0)
615	dataoffset += svlen;	950	dataoffset += svlen;
616		951
617	if (dataoffset < 0 || dataoffset > svlen)	952	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	958	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	959	len = svlen - dataoffset;
625	}	960	}
626	else	961	else
627	{	962	{
628	/* read: grow scalar as necessary */	963	/* read: check type and grow scalar as necessary */
		964	SvUPGRADE (data, SVt_PV);
629	svptr = SvGROW (data, len + dataoffset + 1);	965	svptr = SvGROW (data, len + dataoffset + 1);
630	}	966	}
631		967
632	if (len < 0)
633	croak ("length must not be negative");
634
635	{	968	{
636	dREQ;	969	dREQ;
637		970
638	req->type = ix;	971	req->type = ix;
639	req->sv1 = newSVsv (fh);	972	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	973	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	974	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	975	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	976	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	977	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	978	req->stroffset = dataoffset;
…		…
655	}	987	}
656	}	988	}
657		989
658	void	990	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	991	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
660	PROTOTYPE: $$;$
661	PPCODE:	992	PPCODE:
662	{	993	{
663	SV *data;	994	SV *data;
664	dREQ;	995	dREQ;
665
666	data = newSV (NAME_MAX);
667	SvPOK_on (data);
668		996
669	req->type = EIO_READLINK;	997	req->type = EIO_READLINK;
670	req->sv1 = newSVsv (path);	998	req->sv1 = newSVsv (path);
671	req->ptr1 = SvPVbyte_nolen (req->sv1);	999	req->ptr1 = SvPVbyte_nolen (req->sv1);
672	req->sv2 = data;
673	req->ptr2 = SvPVbyte_nolen (data);
674		1000
675	REQ_SEND;	1001	REQ_SEND;
676	}	1002	}
677		1003
678	void	1004	void
679	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)
680	PROTOTYPE: $$$$;$
681	PPCODE:	1006	PPCODE:
682	{	1007	{
		1008	int ifd = s_fileno_croak (in_fh , 0);
		1009	int ofd = s_fileno_croak (out_fh, 1);
683	dREQ;	1010	dREQ;
684		1011
685	req->type = EIO_SENDFILE;	1012	req->type = EIO_SENDFILE;
686	req->sv1 = newSVsv (out_fh);	1013	req->sv1 = newSVsv (out_fh);
687	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1014	req->int1 = ofd;
688	req->sv2 = newSVsv (in_fh);	1015	req->sv2 = newSVsv (in_fh);
689	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1016	req->int2 = ifd;
690	req->offs = SvVAL64 (in_offset);	1017	req->offs = in_offset;
691	req->size = length;	1018	req->size = length;
692		1019
693	REQ_SEND;	1020	REQ_SEND;
694	}	1021	}
695		1022
696	void	1023	void
697	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1024	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
698	PROTOTYPE: $$$;$
699	PPCODE:	1025	PPCODE:
700	{	1026	{
		1027	int fd = s_fileno_croak (fh, 0);
701	dREQ;	1028	dREQ;
702		1029
703	req->type = EIO_READAHEAD;	1030	req->type = EIO_READAHEAD;
704	req->sv1 = newSVsv (fh);	1031	req->sv1 = newSVsv (fh);
705	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1032	req->int1 = fd;
706	req->offs = SvVAL64 (offset);	1033	req->offs = offset;
707	req->size = length;	1034	req->size = length;
708		1035
709	REQ_SEND;	1036	REQ_SEND;
710	}	1037	}
711		1038
712	void	1039	void
713	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1040	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
714	ALIAS:	1041	ALIAS:
715	aio_stat = EIO_STAT	1042	aio_stat = EIO_STAT
716	aio_lstat = EIO_LSTAT	1043	aio_lstat = EIO_LSTAT
		1044	aio_statvfs = EIO_STATVFS
717	PPCODE:	1045	PPCODE:
718	{	1046	{
719	dREQ;	1047	dREQ;
720		1048
721	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
722	if (!req->ptr2)
723	{
724	req_destroy (req);
725	croak ("out of memory during aio_stat statdata allocation");
726	}
727
728	req->flags |= EIO_FLAG_PTR2_FREE;
729	req->sv1 = newSVsv (fh_or_path);	1049	req->sv1 = newSVsv (fh_or_path);
730		1050
731	if (SvPOK (fh_or_path))	1051	if (SvPOK (req->sv1))
732	{	1052	{
733	req->type = ix;	1053	req->type = ix;
734	req->ptr1 = SvPVbyte_nolen (req->sv1);	1054	req->ptr1 = SvPVbyte_nolen (req->sv1);
735	}	1055	}
736	else	1056	else
737	{	1057	{
738	req->type = EIO_FSTAT;	1058	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
739	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1059	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
740	}	1060	}
741		1061
742	REQ_SEND;	1062	REQ_SEND;
743	}	1063	}
…		…
750		1070
751	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1071	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
752	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1072	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
753	req->sv1 = newSVsv (fh_or_path);	1073	req->sv1 = newSVsv (fh_or_path);
754		1074
755	if (SvPOK (fh_or_path))	1075	if (SvPOK (req->sv1))
756	{	1076	{
757	req->type = EIO_UTIME;	1077	req->type = EIO_UTIME;
758	req->ptr1 = SvPVbyte_nolen (req->sv1);	1078	req->ptr1 = SvPVbyte_nolen (req->sv1);
759	}	1079	}
760	else	1080	else
…		…
773	dREQ;	1093	dREQ;
774		1094
775	req->sv1 = newSVsv (fh_or_path);	1095	req->sv1 = newSVsv (fh_or_path);
776	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1096	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
777		1097
778	if (SvPOK (fh_or_path))	1098	if (SvPOK (req->sv1))
779	{	1099	{
780	req->type = EIO_TRUNCATE;	1100	req->type = EIO_TRUNCATE;
781	req->ptr1 = SvPVbyte_nolen (req->sv1);	1101	req->ptr1 = SvPVbyte_nolen (req->sv1);
782	}	1102	}
783	else	1103	else
…		…
791		1111
792	void	1112	void
793	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)
794	ALIAS:	1114	ALIAS:
795	aio_chmod = EIO_CHMOD	1115	aio_chmod = EIO_CHMOD
796	aio_fchmod = EIO_FCHMOD
797	aio_mkdir = EIO_MKDIR	1116	aio_mkdir = EIO_MKDIR
798	PPCODE:	1117	PPCODE:
799	{	1118	{
800	dREQ;	1119	dREQ;
801		1120
802	req->type = ix;
803	req->int2 = mode;	1121	req->int2 = mode;
804	req->sv1 = newSVsv (fh_or_path);	1122	req->sv1 = newSVsv (fh_or_path);
805		1123
806	if (ix == EIO_FCHMOD)	1124	if (SvPOK (req->sv1))
807	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1125	{
		1126	req->type = ix;
		1127	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1128	}
808	else	1129	else
809	req->ptr1 = SvPVbyte_nolen (req->sv1);	1130	{
		1131	req->type = EIO_FCHMOD;
		1132	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1133	}
810		1134
811	REQ_SEND;	1135	REQ_SEND;
812	}	1136	}
813		1137
814	void	1138	void
…		…
819		1143
820	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1144	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
821	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1145	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
822	req->sv1 = newSVsv (fh_or_path);	1146	req->sv1 = newSVsv (fh_or_path);
823		1147
824	if (SvPOK (fh_or_path))	1148	if (SvPOK (req->sv1))
825	{	1149	{
826	req->type = EIO_CHOWN;	1150	req->type = EIO_CHOWN;
827	req->ptr1 = SvPVbyte_nolen (req->sv1);	1151	req->ptr1 = SvPVbyte_nolen (req->sv1);
828	}	1152	}
829	else	1153	else
…		…
834		1158
835	REQ_SEND;	1159	REQ_SEND;
836	}	1160	}
837		1161
838	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
839	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1180	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
840	ALIAS:	1181	ALIAS:
841	aio_unlink = EIO_UNLINK	1182	aio_unlink = EIO_UNLINK
842	aio_rmdir = EIO_RMDIR	1183	aio_rmdir = EIO_RMDIR
843	aio_readdir = EIO_READDIR	1184	aio_readdir = EIO_READDIR
…		…
885		1226
886	REQ_SEND;	1227	REQ_SEND;
887	}	1228	}
888		1229
889	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
890	aio_busy (double delay, SV *callback=&PL_sv_undef)	1305	aio_busy (double delay, SV *callback=&PL_sv_undef)
891	PPCODE:	1306	PPCODE:
892	{	1307	{
893	dREQ;	1308	dREQ;
894		1309
…		…
898	REQ_SEND;	1313	REQ_SEND;
899	}	1314	}
900		1315
901	void	1316	void
902	aio_group (SV *callback=&PL_sv_undef)	1317	aio_group (SV *callback=&PL_sv_undef)
903	PROTOTYPE: ;$
904	PPCODE:	1318	PPCODE:
905	{	1319	{
906	dREQ;	1320	dREQ;
907		1321
908	req->type = EIO_GROUP;	1322	req->type = EIO_GROUP;
909		1323
910	eio_submit (req);	1324	req_submit (req);
911	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1325	XPUSHs (req_sv (req, aio_grp_stash));
912	}	1326	}
913		1327
914	void	1328	void
915	aio_nop (SV *callback=&PL_sv_undef)	1329	aio_nop (SV *callback=&PL_sv_undef)
916	ALIAS:	1330	ALIAS:
…		…
925	REQ_SEND;	1339	REQ_SEND;
926	}	1340	}
927		1341
928	int	1342	int
929	aioreq_pri (int pri = 0)	1343	aioreq_pri (int pri = 0)
930	PROTOTYPE: ;$
931	CODE:	1344	CODE:
932	RETVAL = next_pri - EIO_PRI_BIAS;	1345	RETVAL = next_pri;
933	if (items > 0)	1346	if (items > 0)
934	{	1347	{
935	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1348	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1349	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
937	next_pri = pri + EIO_PRI_BIAS;	1350	next_pri = pri;
938	}	1351	}
939	OUTPUT:	1352	OUTPUT:
940	RETVAL	1353	RETVAL
941		1354
942	void	1355	void
943	aioreq_nice (int nice = 0)	1356	aioreq_nice (int nice = 0)
944	CODE:	1357	CODE:
945	nice = next_pri - nice;	1358	nice = next_pri - nice;
946	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1359	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
947	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1360	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
948	next_pri = nice + EIO_PRI_BIAS;	1361	next_pri = nice;
949		1362
950	void	1363	void
951	flush ()	1364	flush ()
952	PROTOTYPE:
953	CODE:	1365	CODE:
954	while (eio_nreqs ())	1366	while (eio_nreqs ())
955	{	1367	{
956	poll_wait ();	1368	poll_wait ();
957	poll_cb ();	1369	poll_cb ();
958	}	1370	}
959		1371
960	int	1372	int
961	poll()	1373	poll ()
962	PROTOTYPE:
963	CODE:	1374	CODE:
964	poll_wait ();	1375	poll_wait ();
965	RETVAL = poll_cb ();	1376	RETVAL = poll_cb ();
966	OUTPUT:	1377	OUTPUT:
967	RETVAL	1378	RETVAL
968		1379
969	int	1380	int
970	poll_fileno()	1381	poll_fileno ()
971	PROTOTYPE:
972	CODE:	1382	CODE:
973	RETVAL = respipe [0];	1383	RETVAL = s_epipe_fd (&respipe);
974	OUTPUT:	1384	OUTPUT:
975	RETVAL	1385	RETVAL
976		1386
977	int	1387	int
978	poll_cb(...)	1388	poll_cb (...)
979	PROTOTYPE:	1389	PROTOTYPE:
980	CODE:	1390	CODE:
981	RETVAL = poll_cb ();	1391	RETVAL = poll_cb ();
982	OUTPUT:	1392	OUTPUT:
983	RETVAL	1393	RETVAL
984		1394
985	void	1395	void
986	poll_wait()	1396	poll_wait ()
987	PROTOTYPE:
988	CODE:	1397	CODE:
989	poll_wait ();	1398	poll_wait ();
990		1399
991	int	1400	int
992	nreqs()	1401	nreqs ()
993	PROTOTYPE:
994	CODE:	1402	CODE:
995	RETVAL = eio_nreqs ();	1403	RETVAL = eio_nreqs ();
996	OUTPUT:	1404	OUTPUT:
997	RETVAL	1405	RETVAL
998		1406
999	int	1407	int
1000	nready()	1408	nready ()
1001	PROTOTYPE:
1002	CODE:	1409	CODE:
1003	RETVAL = eio_nready ();	1410	RETVAL = eio_nready ();
1004	OUTPUT:	1411	OUTPUT:
1005	RETVAL	1412	RETVAL
1006		1413
1007	int	1414	int
1008	npending()	1415	npending ()
1009	PROTOTYPE:
1010	CODE:	1416	CODE:
1011	RETVAL = eio_npending ();	1417	RETVAL = eio_npending ();
1012	OUTPUT:	1418	OUTPUT:
1013	RETVAL	1419	RETVAL
1014		1420
1015	int	1421	int
1016	nthreads()	1422	nthreads ()
1017	PROTOTYPE:
1018	CODE:	1423	CODE:
1019	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1424	RETVAL = eio_nthreads ();
1020	RETVAL = started;
1021	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1022	OUTPUT:	1425	OUTPUT:
1023	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
1024		1549
1025	void _on_next_submit (SV *cb)	1550	void _on_next_submit (SV *cb)
1026	CODE:	1551	CODE:
1027	SvREFCNT_dec (on_next_submit);	1552	SvREFCNT_dec (on_next_submit);
1028	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1553	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1036	CODE:	1561	CODE:
1037	eio_cancel (req);	1562	eio_cancel (req);
1038		1563
1039	void	1564	void
1040	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1565	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1041	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
1042	SvREFCNT_dec (req->callback);	1575	SvREFCNT_dec (req->callback);
1043	req->callback = newSVsv (callback);	1576	req->callback = SvREFCNT_inc (cb_cv);
		1577	}
		1578	}
1044		1579
1045	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1580	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1046		1581
1047	void	1582	void
1048	add (aio_req grp, ...)	1583	add (aio_req grp, ...)
…		…
1080	AV *av;	1615	AV *av;
1081		1616
1082	grp->errorno = errno;	1617	grp->errorno = errno;
1083		1618
1084	av = newAV ();	1619	av = newAV ();
		1620	av_extend (av, items - 1);
1085		1621
1086	for (i = 1; i < items; ++i )	1622	for (i = 1; i < items; ++i )
1087	av_push (av, newSVsv (ST (i)));	1623	av_push (av, newSVsv (ST (i)));
1088		1624
1089	SvREFCNT_dec (grp->sv1);	1625	SvREFCNT_dec (grp->sv1);
…		…
1103	void	1639	void
1104	feed (aio_req grp, SV *callback=&PL_sv_undef)	1640	feed (aio_req grp, SV *callback=&PL_sv_undef)
1105	CODE:	1641	CODE:
1106	{	1642	{
1107	SvREFCNT_dec (grp->sv2);	1643	SvREFCNT_dec (grp->sv2);
1108	grp->sv2 = newSVsv (callback);	1644	grp->sv2 = newSVsv (callback);
		1645	grp->feed = aio_grp_feed;
1109		1646
1110	if (grp->int2 <= 0)	1647	if (grp->int2 <= 0)
1111	grp->int2 = 2;	1648	grp->int2 = 2;
1112		1649
1113	eio_grp_limit (grp, grp->int2);	1650	eio_grp_limit (grp, grp->int2);

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