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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.117 by root, Sat May 10 20:02:09 2008 UTC vs.
Revision 1.173 by root, Mon Sep 13 01:59:05 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;
		120
		121	#define EIO_NO_WRAPPERS 1
87		122
88	#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
89		240
90	static int req_invoke (eio_req *req);	241	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	242	#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);	243	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	244	#define EIO_DESTROY(req) req_destroy (req)
96		245
97	enum {	246	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	247	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
102		251
103	typedef eio_req *aio_req;	252	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	253	typedef eio_req *aio_req_ornot;
105		254
106	static SV *on_next_submit;	255	static SV *on_next_submit;
107	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	256	static int next_pri = EIO_PRI_DEFAULT;
108	static int max_outstanding;	257	static int max_outstanding;
109		258
110	static int respipe_osf [2], respipe [2] = { -1, -1 };	259	static s_epipe respipe;
111		260
112	static void req_destroy (aio_req req);	261	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	262	static void req_cancel (aio_req req);
114		263
115	static void want_poll (void)	264	static void want_poll (void)
116	{	265	{
117	/* write a dummy byte to the pipe so fh becomes ready */	266	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	267	s_epipe_signal (&respipe);
119	}	268	}
120		269
121	static void done_poll (void)	270	static void done_poll (void)
122	{	271	{
123	/* read any signals sent by the worker threads */	272	/* read any signals sent by the worker threads */
124	char buf [4];	273	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	274	}
128		275
129	/* must be called at most once */	276	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	277	static SV *req_sv (aio_req req, HV *stash)
131	{	278	{
132	if (!req->self)	279	if (!req->self)
133	{	280	{
134	req->self = (SV *)newHV ();	281	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	282	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	283	}
137		284
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	285	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	286	}
140		287
141	static aio_req SvAIO_REQ (SV *sv)	288	static aio_req SvAIO_REQ (SV *sv)
142	{	289	{
143	MAGIC *mg;	290	MAGIC *mg;
144		291
145	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")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	296	croak ("object of class IO::AIO::REQ expected");
147		297
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	298	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		299
150	return mg ? (aio_req)mg->mg_ptr : 0;	300	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	301	}
…		…
157	dSP;	307	dSP;
158		308
159	ENTER;	309	ENTER;
160	SAVETMPS;	310	SAVETMPS;
161	PUSHMARK (SP);	311	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	312	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	313	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	314	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	315	SPAGAIN;
166	FREETMPS;	316	FREETMPS;
167	LEAVE;	317	LEAVE;
…		…
170		320
171	static void req_submit (eio_req *req)	321	static void req_submit (eio_req *req)
172	{	322	{
173	eio_submit (req);	323	eio_submit (req);
174		324
175	if (on_next_submit)	325	if (expect_false (on_next_submit))
176	{	326	{
177	dSP;	327	dSP;
178	SV *cb = sv_2mortal (on_next_submit);	328	SV *cb = sv_2mortal (on_next_submit);
179		329
180	on_next_submit = 0;	330	on_next_submit = 0;
…		…
185	}	335	}
186	}	336	}
187		337
188	static int req_invoke (eio_req *req)	338	static int req_invoke (eio_req *req)
189	{	339	{
190	dSP;
191
192	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
193	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
194		342
195	if (!EIO_CANCELLED (req) && SvOK (req->callback))	343	if (!EIO_CANCELLED (req) && req->callback)
196	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
197	ENTER;	349	ENTER;
198	SAVETMPS;	350	SAVETMPS;
199	PUSHMARK (SP);	351	PUSHMARK (SP);
200	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	}
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(), su 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	#endif
		644
		645	#define MMAP_MAGIC PERL_MAGIC_ext
		646
		647	static int
		648	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		649	{
		650	int old_errno = errno;
		651	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		652	errno = old_errno;
		653
		654	mg->mg_obj = 0; /* just in case */
		655
		656	SvREADONLY_off (sv);
		657
		658	if (SvPVX (sv) != mg->mg_ptr)
		659	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		660
		661	SvCUR_set (sv, 0);
		662	SvPVX (sv) = 0;
		663	SvOK_off (sv);
		664
		665	return 0;
		666	}
		667
		668	static MGVTBL mmap_vtbl = {
		669	0, 0, 0, 0, mmap_free
		670	};
		671
		672	/*****************************************************************************/
		673
		674	static SV *
		675	get_cb (SV *cb_sv)
		676	{
		677	SvGETMAGIC (cb_sv);
		678	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		679	}
		680
446	#define dREQ \	681	#define dREQ \
		682	SV *cb_cv; \
447	aio_req req; \	683	aio_req req; \
448	int req_pri = next_pri; \	684	int req_pri = next_pri; \
449	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	685	next_pri = EIO_PRI_DEFAULT; \
450	\	686	\
451	if (SvOK (callback) && !SvROK (callback)) \	687	cb_cv = get_cb (callback); \
452	croak ("callback must be undef or of reference type"); \
453	\	688	\
454	Newz (0, req, 1, eio_req); \	689	Newz (0, req, 1, eio_req); \
455	if (!req) \	690	if (!req) \
456	croak ("out of memory during eio_req allocation"); \	691	croak ("out of memory during eio_req allocation"); \
457	\	692	\
458	req->callback = newSVsv (callback); \	693	req->callback = SvREFCNT_inc (cb_cv); \
459	req->pri = req_pri	694	req->pri = req_pri
460		695
461	#define REQ_SEND \	696	#define REQ_SEND \
		697	PUTBACK; \
462	req_submit (req); \	698	req_submit (req); \
		699	SPAGAIN; \
463	\	700	\
464	if (GIMME_V != G_VOID) \	701	if (GIMME_V != G_VOID) \
465	XPUSHs (req_sv (req, AIO_REQ_KLASS));	702	XPUSHs (req_sv (req, aio_req_stash));
466		703
467	MODULE = IO::AIO PACKAGE = IO::AIO	704	MODULE = IO::AIO PACKAGE = IO::AIO
468		705
469	PROTOTYPES: ENABLE	706	PROTOTYPES: ENABLE
470		707
471	BOOT:	708	BOOT:
472	{	709	{
473	stash = gv_stashpv ("IO::AIO", 1);	710	static const struct {
474		711	const char *name;
475	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	712	IV iv;
476	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	713	} *civ, const_iv[] = {
477	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	714	# define const_niv(name, value) { # name, (IV) value },
478	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	715	# define const_iv(name) { # name, (IV) name },
479	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	716	# define const_eio(name) { # name, (IV) EIO_ ## name },
		717	const_iv (EXDEV)
		718	const_iv (ENOSYS)
		719	const_iv (O_RDONLY)
		720	const_iv (O_WRONLY)
		721	const_iv (O_RDWR)
		722	const_iv (O_CREAT)
		723	const_iv (O_TRUNC)
		724	const_iv (O_EXCL)
		725	const_iv (O_APPEND)
480	#ifdef _WIN32	726	#ifndef _WIN32
481	X_MUTEX_CHECK (wrklock);	727	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	728	#endif
		729	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		730	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		731	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		732	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		733	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		734	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
492		735
		736	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		737	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		738	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		739	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		740	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		741
		742	const_iv (ST_RDONLY)
		743	const_iv (ST_NOSUID)
		744	const_iv (ST_NODEV)
		745	const_iv (ST_NOEXEC)
		746	const_iv (ST_SYNCHRONOUS)
		747	const_iv (ST_MANDLOCK)
		748	const_iv (ST_WRITE)
		749	const_iv (ST_APPEND)
		750	const_iv (ST_IMMUTABLE)
		751	const_iv (ST_NOATIME)
		752	const_iv (ST_NODIRATIME)
		753	const_iv (ST_RELATIME)
		754
		755	const_iv (PROT_NONE)
		756	const_iv (PROT_EXEC)
		757	const_iv (PROT_READ)
		758	const_iv (PROT_WRITE)
		759
		760	/*const_iv (MAP_FIXED)*/
		761	const_iv (MAP_PRIVATE)
		762	const_iv (MAP_SHARED)
		763	const_iv (MAP_ANONYMOUS)
		764
		765	/* linuxish */
		766	const_iv (MAP_HUGETLB)
		767	const_iv (MAP_LOCKED)
		768	const_iv (MAP_NORESERVE)
		769	const_iv (MAP_POPULATE)
		770	const_iv (MAP_NONBLOCK)
		771
		772	const_eio (MCL_FUTURE)
		773	const_eio (MCL_CURRENT)
		774
		775	const_eio (MS_ASYNC)
		776	const_eio (MS_INVALIDATE)
		777	const_eio (MS_SYNC)
		778
		779	const_eio (MT_MODIFY)
		780
		781	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		782	const_eio (SYNC_FILE_RANGE_WRITE)
		783	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		784
		785	const_eio (READDIR_DENTS)
		786	const_eio (READDIR_DIRS_FIRST)
		787	const_eio (READDIR_STAT_ORDER)
		788	const_eio (READDIR_FOUND_UNKNOWN)
		789
		790	const_eio (DT_UNKNOWN)
		791	const_eio (DT_FIFO)
		792	const_eio (DT_CHR)
		793	const_eio (DT_DIR)
		794	const_eio (DT_BLK)
		795	const_eio (DT_REG)
		796	const_eio (DT_LNK)
		797	const_eio (DT_SOCK)
		798	const_eio (DT_WHT)
		799	};
		800
		801	aio_stash = gv_stashpv ("IO::AIO" , 1);
		802	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		803	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		804
		805	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		806	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		807
		808	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		809
493	create_respipe ();	810	create_respipe ();
494		811
495	if (eio_init (want_poll, done_poll) < 0)	812	if (eio_init (want_poll, done_poll) < 0)
496	croak ("IO::AIO: unable to initialise eio library");	813	croak ("IO::AIO: unable to initialise eio library");
497		814
498	/* atfork child called in fifo order, so before eio's handler */	815	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);	816	X_THREAD_ATFORK (0, 0, atfork_child);
500	}	817	}
501		818
502	void	819	void
503	max_poll_reqs (int nreqs)	820	max_poll_reqs (int nreqs)
504	PROTOTYPE: $	821	PROTOTYPE: $
…		…
535	CODE:	852	CODE:
536	max_outstanding = maxreqs;	853	max_outstanding = maxreqs;
537		854
538	void	855	void
539	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	856	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
540	PROTOTYPE: $$$;$
541	PPCODE:	857	PPCODE:
542	{	858	{
543	dREQ;	859	dREQ;
544		860
545	req->type = EIO_OPEN;	861	req->type = EIO_OPEN;
…		…
551	REQ_SEND;	867	REQ_SEND;
552	}	868	}
553		869
554	void	870	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	871	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	872	ALIAS:
558	aio_fsync = EIO_FSYNC	873	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	874	aio_fdatasync = EIO_FDATASYNC
560	PPCODE:	875	PPCODE:
561	{	876	{
		877	int fd = s_fileno_croak (fh, 0);
562	dREQ;	878	dREQ;
563		879
564	req->type = ix;	880	req->type = ix;
565	req->sv1 = newSVsv (fh);	881	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	882	req->int1 = fd;
567		883
568	REQ_SEND (req);	884	REQ_SEND (req);
569	}	885	}
570		886
571	void	887	void
		888	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		889	PPCODE:
		890	{
		891	int fd = s_fileno_croak (fh, 0);
		892	dREQ;
		893
		894	req->type = EIO_SYNC_FILE_RANGE;
		895	req->sv1 = newSVsv (fh);
		896	req->int1 = fd;
		897	req->offs = offset;
		898	req->size = nbytes;
		899	req->int2 = flags;
		900
		901	REQ_SEND (req);
		902	}
		903
		904	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	905	aio_close (SV *fh, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	906	PPCODE:
575	{	907	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	908	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		909	int fd = s_fileno_croak (fh, 0);
577	dREQ;	910	dREQ;
578		911
579	if (close_pipe < 0)	912	if (close_pipe < 0)
580	{	913	{
581	int pipefd [2];	914	int pipefd [2];
…		…
589	}	922	}
590		923
591	req->type = EIO_DUP2;	924	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	925	req->int1 = close_pipe;
593	req->sv2 = newSVsv (fh);	926	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	927	req->int2 = fd;
595		928
596	REQ_SEND (req);	929	REQ_SEND (req);
597	}	930	}
598		931
599	void	932	void
600	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	933	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
601	ALIAS:	934	ALIAS:
602	aio_read = EIO_READ	935	aio_read = EIO_READ
603	aio_write = EIO_WRITE	936	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	937	PPCODE:
606	{	938	{
607	STRLEN svlen;	939	STRLEN svlen;
		940	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	941	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	942	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		943
614	if (dataoffset < 0)	944	if (dataoffset < 0)
615	dataoffset += svlen;	945	dataoffset += svlen;
616		946
617	if (dataoffset < 0 || dataoffset > svlen)	947	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	953	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	954	len = svlen - dataoffset;
625	}	955	}
626	else	956	else
627	{	957	{
628	/* read: grow scalar as necessary */	958	/* read: check type and grow scalar as necessary */
		959	SvUPGRADE (data, SVt_PV);
629	svptr = SvGROW (data, len + dataoffset + 1);	960	svptr = SvGROW (data, len + dataoffset + 1);
630	}	961	}
631		962
632	if (len < 0)
633	croak ("length must not be negative");
634
635	{	963	{
636	dREQ;	964	dREQ;
637		965
638	req->type = ix;	966	req->type = ix;
639	req->sv1 = newSVsv (fh);	967	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	968	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	969	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	970	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	971	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	972	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	973	req->stroffset = dataoffset;
…		…
655	}	982	}
656	}	983	}
657		984
658	void	985	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	986	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
660	PROTOTYPE: $$;$
661	PPCODE:	987	PPCODE:
662	{	988	{
663	SV *data;	989	SV *data;
664	dREQ;	990	dREQ;
665
666	data = newSV (NAME_MAX);
667	SvPOK_on (data);
668		991
669	req->type = EIO_READLINK;	992	req->type = EIO_READLINK;
670	req->sv1 = newSVsv (path);	993	req->sv1 = newSVsv (path);
671	req->ptr1 = SvPVbyte_nolen (req->sv1);	994	req->ptr1 = SvPVbyte_nolen (req->sv1);
672	req->sv2 = data;
673	req->ptr2 = SvPVbyte_nolen (data);
674		995
675	REQ_SEND;	996	REQ_SEND;
676	}	997	}
677		998
678	void	999	void
679	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1000	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
680	PROTOTYPE: $$$$;$
681	PPCODE:	1001	PPCODE:
682	{	1002	{
		1003	int ifd = s_fileno_croak (in_fh , 0);
		1004	int ofd = s_fileno_croak (out_fh, 1);
683	dREQ;	1005	dREQ;
684		1006
685	req->type = EIO_SENDFILE;	1007	req->type = EIO_SENDFILE;
686	req->sv1 = newSVsv (out_fh);	1008	req->sv1 = newSVsv (out_fh);
687	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1009	req->int1 = ofd;
688	req->sv2 = newSVsv (in_fh);	1010	req->sv2 = newSVsv (in_fh);
689	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1011	req->int2 = ifd;
690	req->offs = SvVAL64 (in_offset);	1012	req->offs = in_offset;
691	req->size = length;	1013	req->size = length;
692		1014
693	REQ_SEND;	1015	REQ_SEND;
694	}	1016	}
695		1017
696	void	1018	void
697	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1019	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
698	PROTOTYPE: $$$;$
699	PPCODE:	1020	PPCODE:
700	{	1021	{
		1022	int fd = s_fileno_croak (fh, 0);
701	dREQ;	1023	dREQ;
702		1024
703	req->type = EIO_READAHEAD;	1025	req->type = EIO_READAHEAD;
704	req->sv1 = newSVsv (fh);	1026	req->sv1 = newSVsv (fh);
705	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1027	req->int1 = fd;
706	req->offs = SvVAL64 (offset);	1028	req->offs = offset;
707	req->size = length;	1029	req->size = length;
708		1030
709	REQ_SEND;	1031	REQ_SEND;
710	}	1032	}
711		1033
712	void	1034	void
713	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1035	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
714	ALIAS:	1036	ALIAS:
715	aio_stat = EIO_STAT	1037	aio_stat = EIO_STAT
716	aio_lstat = EIO_LSTAT	1038	aio_lstat = EIO_LSTAT
		1039	aio_statvfs = EIO_STATVFS
717	PPCODE:	1040	PPCODE:
718	{	1041	{
719	dREQ;	1042	dREQ;
720		1043
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);	1044	req->sv1 = newSVsv (fh_or_path);
730		1045
731	if (SvPOK (fh_or_path))	1046	if (SvPOK (req->sv1))
732	{	1047	{
733	req->type = ix;	1048	req->type = ix;
734	req->ptr1 = SvPVbyte_nolen (req->sv1);	1049	req->ptr1 = SvPVbyte_nolen (req->sv1);
735	}	1050	}
736	else	1051	else
737	{	1052	{
738	req->type = EIO_FSTAT;	1053	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
739	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1054	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
740	}	1055	}
741		1056
742	REQ_SEND;	1057	REQ_SEND;
743	}	1058	}
…		…
750		1065
751	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1066	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
752	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1067	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
753	req->sv1 = newSVsv (fh_or_path);	1068	req->sv1 = newSVsv (fh_or_path);
754		1069
755	if (SvPOK (fh_or_path))	1070	if (SvPOK (req->sv1))
756	{	1071	{
757	req->type = EIO_UTIME;	1072	req->type = EIO_UTIME;
758	req->ptr1 = SvPVbyte_nolen (req->sv1);	1073	req->ptr1 = SvPVbyte_nolen (req->sv1);
759	}	1074	}
760	else	1075	else
…		…
773	dREQ;	1088	dREQ;
774		1089
775	req->sv1 = newSVsv (fh_or_path);	1090	req->sv1 = newSVsv (fh_or_path);
776	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1091	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
777		1092
778	if (SvPOK (fh_or_path))	1093	if (SvPOK (req->sv1))
779	{	1094	{
780	req->type = EIO_TRUNCATE;	1095	req->type = EIO_TRUNCATE;
781	req->ptr1 = SvPVbyte_nolen (req->sv1);	1096	req->ptr1 = SvPVbyte_nolen (req->sv1);
782	}	1097	}
783	else	1098	else
…		…
791		1106
792	void	1107	void
793	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1108	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
794	ALIAS:	1109	ALIAS:
795	aio_chmod = EIO_CHMOD	1110	aio_chmod = EIO_CHMOD
796	aio_fchmod = EIO_FCHMOD
797	aio_mkdir = EIO_MKDIR	1111	aio_mkdir = EIO_MKDIR
798	PPCODE:	1112	PPCODE:
799	{	1113	{
800	dREQ;	1114	dREQ;
801		1115
802	req->type = ix;
803	req->int2 = mode;	1116	req->int2 = mode;
804	req->sv1 = newSVsv (fh_or_path);	1117	req->sv1 = newSVsv (fh_or_path);
805		1118
806	if (ix == EIO_FCHMOD)	1119	if (SvPOK (req->sv1))
807	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1120	{
		1121	req->type = ix;
		1122	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1123	}
808	else	1124	else
809	req->ptr1 = SvPVbyte_nolen (req->sv1);	1125	{
		1126	req->type = EIO_FCHMOD;
		1127	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1128	}
810		1129
811	REQ_SEND;	1130	REQ_SEND;
812	}	1131	}
813		1132
814	void	1133	void
…		…
819		1138
820	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1139	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
821	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1140	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
822	req->sv1 = newSVsv (fh_or_path);	1141	req->sv1 = newSVsv (fh_or_path);
823		1142
824	if (SvPOK (fh_or_path))	1143	if (SvPOK (req->sv1))
825	{	1144	{
826	req->type = EIO_CHOWN;	1145	req->type = EIO_CHOWN;
827	req->ptr1 = SvPVbyte_nolen (req->sv1);	1146	req->ptr1 = SvPVbyte_nolen (req->sv1);
828	}	1147	}
829	else	1148	else
…		…
834		1153
835	REQ_SEND;	1154	REQ_SEND;
836	}	1155	}
837		1156
838	void	1157	void
		1158	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1159	PPCODE:
		1160	{
		1161	dREQ;
		1162
		1163	req->type = EIO_READDIR;
		1164	req->sv1 = newSVsv (pathname);
		1165	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1166	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1167
		1168	if (flags & EIO_READDIR_DENTS)
		1169	req->int1 |= EIO_READDIR_CUSTOM2;
		1170
		1171	REQ_SEND;
		1172	}
		1173
		1174	void
839	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1175	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
840	ALIAS:	1176	ALIAS:
841	aio_unlink = EIO_UNLINK	1177	aio_unlink = EIO_UNLINK
842	aio_rmdir = EIO_RMDIR	1178	aio_rmdir = EIO_RMDIR
843	aio_readdir = EIO_READDIR	1179	aio_readdir = EIO_READDIR
…		…
885		1221
886	REQ_SEND;	1222	REQ_SEND;
887	}	1223	}
888		1224
889	void	1225	void
		1226	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1227	ALIAS:
		1228	aio_mtouch = EIO_MTOUCH
		1229	aio_msync = EIO_MSYNC
		1230	PPCODE:
		1231	{
		1232	STRLEN svlen;
		1233	char *svptr = SvPVbyte (data, svlen);
		1234	UV len = SvUV (length);
		1235
		1236	if (offset < 0)
		1237	offset += svlen;
		1238
		1239	if (offset < 0 || offset > svlen)
		1240	croak ("offset outside of scalar");
		1241
		1242	if (!SvOK (length) || len + offset > svlen)
		1243	len = svlen - offset;
		1244
		1245	{
		1246	dREQ;
		1247
		1248	req->type = ix;
		1249	req->sv2 = SvREFCNT_inc (data);
		1250	req->ptr2 = (char *)svptr + offset;
		1251	req->size = len;
		1252	req->int1 = flags;
		1253
		1254	REQ_SEND;
		1255	}
		1256	}
		1257
		1258	void
		1259	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1260	PPCODE:
		1261	{
		1262	STRLEN svlen;
		1263	char *svptr = SvPVbyte (data, svlen);
		1264	UV len = SvUV (length);
		1265
		1266	if (offset < 0)
		1267	offset += svlen;
		1268
		1269	if (offset < 0 || offset > svlen)
		1270	croak ("offset outside of scalar");
		1271
		1272	if (!SvOK (length) || len + offset > svlen)
		1273	len = svlen - offset;
		1274
		1275	{
		1276	dREQ;
		1277
		1278	req->type = EIO_MLOCK;
		1279	req->sv2 = SvREFCNT_inc (data);
		1280	req->ptr2 = (char *)svptr + offset;
		1281	req->size = len;
		1282
		1283	REQ_SEND;
		1284	}
		1285	}
		1286
		1287	void
		1288	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1289	PPCODE:
		1290	{
		1291	dREQ;
		1292
		1293	req->type = EIO_MLOCKALL;
		1294	req->int1 = flags;
		1295
		1296	REQ_SEND;
		1297	}
		1298
		1299	void
890	aio_busy (double delay, SV *callback=&PL_sv_undef)	1300	aio_busy (double delay, SV *callback=&PL_sv_undef)
891	PPCODE:	1301	PPCODE:
892	{	1302	{
893	dREQ;	1303	dREQ;
894		1304
…		…
898	REQ_SEND;	1308	REQ_SEND;
899	}	1309	}
900		1310
901	void	1311	void
902	aio_group (SV *callback=&PL_sv_undef)	1312	aio_group (SV *callback=&PL_sv_undef)
903	PROTOTYPE: ;$
904	PPCODE:	1313	PPCODE:
905	{	1314	{
906	dREQ;	1315	dREQ;
907		1316
908	req->type = EIO_GROUP;	1317	req->type = EIO_GROUP;
909		1318
910	eio_submit (req);	1319	req_submit (req);
911	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1320	XPUSHs (req_sv (req, aio_grp_stash));
912	}	1321	}
913		1322
914	void	1323	void
915	aio_nop (SV *callback=&PL_sv_undef)	1324	aio_nop (SV *callback=&PL_sv_undef)
916	ALIAS:	1325	ALIAS:
…		…
925	REQ_SEND;	1334	REQ_SEND;
926	}	1335	}
927		1336
928	int	1337	int
929	aioreq_pri (int pri = 0)	1338	aioreq_pri (int pri = 0)
930	PROTOTYPE: ;$
931	CODE:	1339	CODE:
932	RETVAL = next_pri - EIO_PRI_BIAS;	1340	RETVAL = next_pri;
933	if (items > 0)	1341	if (items > 0)
934	{	1342	{
935	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1343	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1344	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
937	next_pri = pri + EIO_PRI_BIAS;	1345	next_pri = pri;
938	}	1346	}
939	OUTPUT:	1347	OUTPUT:
940	RETVAL	1348	RETVAL
941		1349
942	void	1350	void
943	aioreq_nice (int nice = 0)	1351	aioreq_nice (int nice = 0)
944	CODE:	1352	CODE:
945	nice = next_pri - nice;	1353	nice = next_pri - nice;
946	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1354	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
947	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1355	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
948	next_pri = nice + EIO_PRI_BIAS;	1356	next_pri = nice;
949		1357
950	void	1358	void
951	flush ()	1359	flush ()
952	PROTOTYPE:
953	CODE:	1360	CODE:
954	while (eio_nreqs ())	1361	while (eio_nreqs ())
955	{	1362	{
956	poll_wait ();	1363	poll_wait ();
957	poll_cb ();	1364	poll_cb ();
958	}	1365	}
959		1366
960	int	1367	int
961	poll()	1368	poll ()
962	PROTOTYPE:
963	CODE:	1369	CODE:
964	poll_wait ();	1370	poll_wait ();
965	RETVAL = poll_cb ();	1371	RETVAL = poll_cb ();
966	OUTPUT:	1372	OUTPUT:
967	RETVAL	1373	RETVAL
968		1374
969	int	1375	int
970	poll_fileno()	1376	poll_fileno ()
971	PROTOTYPE:
972	CODE:	1377	CODE:
973	RETVAL = respipe [0];	1378	RETVAL = s_epipe_fd (&respipe);
974	OUTPUT:	1379	OUTPUT:
975	RETVAL	1380	RETVAL
976		1381
977	int	1382	int
978	poll_cb(...)	1383	poll_cb (...)
979	PROTOTYPE:	1384	PROTOTYPE:
980	CODE:	1385	CODE:
981	RETVAL = poll_cb ();	1386	RETVAL = poll_cb ();
982	OUTPUT:	1387	OUTPUT:
983	RETVAL	1388	RETVAL
984		1389
985	void	1390	void
986	poll_wait()	1391	poll_wait ()
987	PROTOTYPE:
988	CODE:	1392	CODE:
989	poll_wait ();	1393	poll_wait ();
990		1394
991	int	1395	int
992	nreqs()	1396	nreqs ()
993	PROTOTYPE:
994	CODE:	1397	CODE:
995	RETVAL = eio_nreqs ();	1398	RETVAL = eio_nreqs ();
996	OUTPUT:	1399	OUTPUT:
997	RETVAL	1400	RETVAL
998		1401
999	int	1402	int
1000	nready()	1403	nready ()
1001	PROTOTYPE:
1002	CODE:	1404	CODE:
1003	RETVAL = eio_nready ();	1405	RETVAL = eio_nready ();
1004	OUTPUT:	1406	OUTPUT:
1005	RETVAL	1407	RETVAL
1006		1408
1007	int	1409	int
1008	npending()	1410	npending ()
1009	PROTOTYPE:
1010	CODE:	1411	CODE:
1011	RETVAL = eio_npending ();	1412	RETVAL = eio_npending ();
1012	OUTPUT:	1413	OUTPUT:
1013	RETVAL	1414	RETVAL
1014		1415
1015	int	1416	int
1016	nthreads()	1417	nthreads ()
1017	PROTOTYPE:
1018	CODE:	1418	CODE:
1019	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1419	RETVAL = eio_nthreads ();
1020	RETVAL = started;
1021	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1022	OUTPUT:	1420	OUTPUT:
1023	RETVAL	1421	RETVAL
		1422
		1423	int
		1424	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1425	CODE:
		1426	RETVAL = posix_fadvise (fh, offset, length, advice);
		1427	OUTPUT:
		1428	RETVAL
		1429
		1430	ssize_t
		1431	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1432	CODE:
		1433	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1434	OUTPUT:
		1435	RETVAL
		1436
		1437	void
		1438	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1439	PPCODE:
		1440	sv_unmagic (scalar, MMAP_MAGIC);
		1441	{
		1442	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1443	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1444	if (addr == (void *)-1)
		1445	XSRETURN_NO;
		1446
		1447	sv_force_normal (scalar);
		1448
		1449	/* we store the length in mg_obj, as namlen is I32 :/ */
		1450	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1451	->mg_obj = (SV *)length;
		1452
		1453	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1454
		1455	if (!(prot & PROT_WRITE))
		1456	SvREADONLY_on (scalar);
		1457
		1458	if (SvLEN (scalar))
		1459	Safefree (SvPVX (scalar));
		1460
		1461	SvPVX (scalar) = (char *)addr;
		1462	SvCUR_set (scalar, length);
		1463	SvLEN_set (scalar, 0);
		1464	SvPOK_only (scalar);
		1465
		1466	XSRETURN_YES;
		1467	}
		1468
		1469	void
		1470	munmap (SV *scalar)
		1471	CODE:
		1472	sv_unmagic (scalar, MMAP_MAGIC);
		1473
		1474	int
		1475	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1476	ALIAS:
		1477	mprotect = 1
		1478	CODE:
		1479	{
		1480	STRLEN svlen;
		1481	void *addr = SvPVbyte (scalar, svlen);
		1482	size_t len = SvUV (length);
		1483
		1484	if (offset < 0)
		1485	offset += svlen;
		1486
		1487	if (offset < 0 || offset > svlen)
		1488	croak ("offset outside of scalar");
		1489
		1490	if (!SvOK (length) || len + offset > svlen)
		1491	len = svlen - offset;
		1492
		1493	addr = (void *)(((intptr_t)addr) + offset);
		1494	eio_page_align (&addr, &len);
		1495
		1496	switch (ix)
		1497	{
		1498	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1499	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1500	}
		1501	}
		1502	OUTPUT:
		1503	RETVAL
		1504
		1505	int
		1506	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1507	CODE:
		1508	{
		1509	STRLEN svlen;
		1510	void *addr = SvPVbyte (scalar, svlen);
		1511	size_t len = SvUV (length);
		1512
		1513	if (offset < 0)
		1514	offset += svlen;
		1515
		1516	if (offset < 0 || offset > svlen)
		1517	croak ("offset outside of scalar");
		1518
		1519	if (!SvOK (length) || len + offset > svlen)
		1520	len = svlen - offset;
		1521
		1522	addr = (void *)(((intptr_t)addr) + offset);
		1523	eio_page_align (&addr, &len);
		1524	#if _POSIX_MEMLOCK
		1525	RETVAL = munlock (addr, len);
		1526	#else
		1527	RETVAL = ((errno = ENOSYS), -1);
		1528	#endif
		1529	}
		1530	OUTPUT:
		1531	RETVAL
		1532
		1533	int
		1534	munlockall ()
		1535	CODE:
		1536	#if _POSIX_MEMLOCK
		1537	munlockall ();
		1538	#else
		1539	RETVAL = -1;
		1540	errno = ENOSYS;
		1541	#endif
		1542	OUTPUT:
		1543	RETVAL
1024		1544
1025	void _on_next_submit (SV *cb)	1545	void _on_next_submit (SV *cb)
1026	CODE:	1546	CODE:
1027	SvREFCNT_dec (on_next_submit);	1547	SvREFCNT_dec (on_next_submit);
1028	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1548	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1036	CODE:	1556	CODE:
1037	eio_cancel (req);	1557	eio_cancel (req);
1038		1558
1039	void	1559	void
1040	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1560	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1041	CODE:	1561	PPCODE:
		1562	{
		1563	if (GIMME_V != G_VOID)
		1564	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1565
		1566	if (items > 1)
		1567	{
		1568	SV *cb_cv =get_cb (callback);
		1569
1042	SvREFCNT_dec (req->callback);	1570	SvREFCNT_dec (req->callback);
1043	req->callback = newSVsv (callback);	1571	req->callback = SvREFCNT_inc (cb_cv);
		1572	}
		1573	}
1044		1574
1045	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1575	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1046		1576
1047	void	1577	void
1048	add (aio_req grp, ...)	1578	add (aio_req grp, ...)
…		…
1080	AV *av;	1610	AV *av;
1081		1611
1082	grp->errorno = errno;	1612	grp->errorno = errno;
1083		1613
1084	av = newAV ();	1614	av = newAV ();
		1615	av_extend (av, items - 1);
1085		1616
1086	for (i = 1; i < items; ++i )	1617	for (i = 1; i < items; ++i )
1087	av_push (av, newSVsv (ST (i)));	1618	av_push (av, newSVsv (ST (i)));
1088		1619
1089	SvREFCNT_dec (grp->sv1);	1620	SvREFCNT_dec (grp->sv1);
…		…
1103	void	1634	void
1104	feed (aio_req grp, SV *callback=&PL_sv_undef)	1635	feed (aio_req grp, SV *callback=&PL_sv_undef)
1105	CODE:	1636	CODE:
1106	{	1637	{
1107	SvREFCNT_dec (grp->sv2);	1638	SvREFCNT_dec (grp->sv2);
1108	grp->sv2 = newSVsv (callback);	1639	grp->sv2 = newSVsv (callback);
		1640	grp->feed = aio_grp_feed;
1109		1641
1110	if (grp->int2 <= 0)	1642	if (grp->int2 <= 0)
1111	grp->int2 = 2;	1643	grp->int2 = 2;
1112		1644
1113	eio_grp_limit (grp, grp->int2);	1645	eio_grp_limit (grp, grp->int2);

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