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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.115 by root, Sat May 10 18:06:41 2008 UTC vs.
Revision 1.176 by root, Thu Dec 2 10:04:47 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 */
…		…
101	#include "libeio/eio.c"	249	#include "libeio/eio.c"
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 unsigned int max_outstanding = 0x7fffffff;	254	static SV *on_next_submit;
		255	static int next_pri = EIO_PRI_DEFAULT;
		256	static int max_outstanding;
107		257
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	258	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
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;
168	}	317	}
169	}	318	}
170		319
		320	static void req_submit (eio_req *req)
		321	{
		322	eio_submit (req);
		323
		324	if (expect_false (on_next_submit))
		325	{
		326	dSP;
		327	SV *cb = sv_2mortal (on_next_submit);
		328
		329	on_next_submit = 0;
		330
		331	PUSHMARK (SP);
		332	PUTBACK;
		333	call_sv (cb, G_DISCARD | G_EVAL);
		334	}
		335	}
		336
171	static int req_invoke (eio_req *req)	337	static int req_invoke (eio_req *req)
172	{	338	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	339	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	340	SvREADONLY_off (req->sv2);
177		341
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	342	if (!EIO_CANCELLED (req) && req->callback)
179	{	343	{
		344	dSP;
		345	static SV *sv_result_cache; /* caches the result integer SV */
		346	SV *sv_result;
		347
180	ENTER;	348	ENTER;
181	SAVETMPS;	349	SAVETMPS;
182	PUSHMARK (SP);	350	PUSHMARK (SP);
183	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	}
		359	else
		360	{
		361	sv_result = newSViv (req->result);
		362	SvREADONLY_on (sv_result);
		363	}
184		364
185	switch (req->type)	365	switch (req->type)
186	{	366	{
187	case EIO_READDIR:	367	case EIO_READDIR:
188	{	368	{
189	SV *rv = &PL_sv_undef;	369	SV *rv = &PL_sv_undef;
190		370
191	if (req->result >= 0)	371	if (req->result >= 0)
192	{	372	{
193	int i;	373	int i;
194	char *buf = req->ptr2;	374	char *names = (char *)req->ptr2;
		375	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
195	AV *av = newAV ();	376	AV *av = newAV ();
196		377
197	av_extend (av, req->result - 1);	378	av_extend (av, req->result - 1);
198		379
199	for (i = 0; i < req->result; ++i)	380	for (i = 0; i < req->result; ++i)
200	{	381	{
201	SV *sv = newSVpv (buf, 0);	382	if (req->int1 & EIO_READDIR_DENTS)
		383	{
		384	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		385
		386	if (req->int1 & EIO_READDIR_CUSTOM2)
		387	{
		388	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		389	AV *avent = newAV ();
		390
		391	av_extend (avent, 2);
		392
		393	if (!sv_type [ent->type])
		394	{
		395	sv_type [ent->type] = newSViv (ent->type);
		396	SvREADONLY_on (sv_type [ent->type]);
		397	}
		398
		399	av_store (avent, 0, namesv);
		400	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		401	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		402
		403	av_store (av, i, newRV_noinc ((SV *)avent));
		404	}
		405	else
203	av_store (av, i, sv);	406	av_store (av, i, namesv);
		407
		408	++ent;
		409	}
		410	else
		411	{
		412	SV *name = newSVpv (names, 0);
		413	av_store (av, i, name);
204	buf += SvCUR (sv) + 1;	414	names += SvCUR (name) + 1;
		415	}
205	}	416	}
206		417
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	418	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	419	}
209		420
210	PUSHs (rv);	421	PUSHs (rv);
		422
		423	if (req->int1 & EIO_READDIR_CUSTOM1)
		424	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
211	}	425	}
212	break;	426	break;
213		427
214	case EIO_OPEN:	428	case EIO_OPEN:
215	{	429	{
…		…
221	GV *gv = (GV *)sv_newmortal ();	435	GV *gv = (GV *)sv_newmortal ();
222	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	436	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223	char sym [64];	437	char sym [64];
224	int symlen;	438	int symlen;
225		439
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	440	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
227	gv_init (gv, stash, sym, symlen, 0);	441	gv_init (gv, aio_stash, sym, symlen, 0);
228		442
229	symlen = snprintf (	443	symlen = snprintf (
230	sym,	444	sym,
231	sizeof (sym),	445	sizeof (sym),
232	"%s&=%d",	446	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	447	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result	448	(int)req->result
235	);	449	);
236		450
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	451	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238	fh = (SV *)gv;	452	fh = (SV *)gv;
239	}	453	}
240		454
241	PUSHs (fh);	455	PUSHs (fh);
242	}	456	}
		457	break;
		458
		459	case EIO_STATVFS:
		460	case EIO_FSTATVFS:
		461	{
		462	SV *rv = &PL_sv_undef;
		463
		464	if (req->result >= 0)
		465	{
		466	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		467	HV *hv = newHV ();
		468
		469	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		470
		471	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		472	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		473	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		474	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		475	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		476	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		477	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		478	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		479	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		480	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		481	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		482	}
		483
		484	PUSHs (rv);
		485	}
		486
243	break;	487	break;
244		488
245	case EIO_GROUP:	489	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	490	req->int1 = 2; /* mark group as finished */
247		491
…		…
260	case EIO_BUSY:	504	case EIO_BUSY:
261	break;	505	break;
262		506
263	case EIO_READLINK:	507	case EIO_READLINK:
264	if (req->result > 0)	508	if (req->result > 0)
265	{	509	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
266	SvCUR_set (req->sv2, req->result);
267	*SvEND (req->sv2) = 0;
268	PUSHs (req->sv2);
269	}
270	break;	510	break;
271		511
272	case EIO_STAT:	512	case EIO_STAT:
273	case EIO_LSTAT:	513	case EIO_LSTAT:
274	case EIO_FSTAT:	514	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	515	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
276	PL_laststatval = req->result;	516	PL_laststatval = req->result;
277	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	517	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	518	PUSHs (sv_result);
279	break;	519	break;
280		520
281	case EIO_READ:	521	case EIO_READ:
		522	{
282	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	523	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
283	*SvEND (req->sv2) = 0;	524	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	525	SvPOK_only (req->sv2);
		526	SvSETMAGIC (req->sv2);
		527	PUSHs (sv_result);
		528	}
285	break;	529	break;
286		530
287	case EIO_DUP2:	531	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
288	if (req->result > 0)	532	if (req->result > 0)
289	req->result = 0;	533	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	534	/* FALLTHROUGH */
291		535
292	default:	536	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	537	PUSHs (sv_result);
294	break;	538	break;
295	}	539	}
296		540
297	errno = req->errorno;	541	errno = req->errorno;
298		542
299	PUTBACK;	543	PUTBACK;
300	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	544	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301	SPAGAIN;	545	SPAGAIN;
		546
		547	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		548	SvREFCNT_dec (sv_result);
		549	else
		550	sv_result_cache = sv_result;
302		551
303	FREETMPS;	552	FREETMPS;
304	LEAVE;	553	LEAVE;
305		554
306	PUTBACK;	555	PUTBACK;
…		…
335	grp->sv2 = 0;	584	grp->sv2 = 0;
336		585
337	eio_grp_cancel (grp);	586	eio_grp_cancel (grp);
338	}	587	}
339		588
340	#ifdef USE_SOCKETS_AS_HANDLES
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))
342	#else
343	# define TO_SOCKET(x) (x)
344	#endif
345
346	static void	589	static void
347	create_respipe (void)	590	create_respipe (void)
348	{	591	{
349	int old_readfd = respipe [0];
350
351	if (respipe [1] >= 0)
352	respipe_close (TO_SOCKET (respipe [1]));
353
354	#ifdef _WIN32
355	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
356	#else
357	if (pipe (respipe))	592	if (s_epipe_renew (&respipe))
358	#endif
359	croak ("unable to initialize result pipe");	593	croak ("IO::AIO: unable to initialize result pipe");
360
361	if (old_readfd >= 0)
362	{
363	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
364	croak ("unable to initialize result pipe(2)");
365
366	respipe_close (respipe [0]);
367	respipe [0] = old_readfd;
368	}
369
370	#ifdef _WIN32
371	int arg = 1;
372	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
373	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
374	#else
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
376	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
377	#endif
378	croak ("unable to initialize result pipe(3)");
379
380	respipe_osf [0] = TO_SOCKET (respipe [0]);
381	respipe_osf [1] = TO_SOCKET (respipe [1]);
382	}	594	}
383		595
384	static void poll_wait (void)	596	static void poll_wait (void)
385	{	597	{
386	fd_set rfd;
387
388	while (eio_nreqs ())	598	while (eio_nreqs ())
389	{	599	{
390	int size;	600	int size;
391		601
392	X_LOCK (reslock);	602	X_LOCK (reslock);
…		…
394	X_UNLOCK (reslock);	604	X_UNLOCK (reslock);
395		605
396	if (size)	606	if (size)
397	return;	607	return;
398		608
399	maybe_start_thread ();	609	etp_maybe_start_thread ();
400		610
401	FD_ZERO (&rfd);	611	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	612	}
406	}	613	}
407		614
408	static int poll_cb (void)	615	static int poll_cb (void)
409	{	616	{
		617	for (;;)
		618	{
410	int res = eio_poll ();	619	int res = eio_poll ();
411		620
412	if (res > 0)	621	if (res > 0)
413	croak (0);	622	croak (0);
414		623
		624	if (!max_outstanding || max_outstanding > eio_nreqs ())
		625	return res;
		626
		627	poll_wait ();
		628	}
		629	}
		630
		631	static void atfork_child (void)
		632	{
		633	create_respipe ();
		634	}
		635
		636	/*****************************************************************************/
		637
		638	#if !_POSIX_MAPPED_FILES
		639	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		640	# define munmap(addr,length) (errno = ENOSYS, -1)
		641	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		642	# define PROT_NONE 0
		643	# define PROT_WRITE 0
		644	# define MAP_PRIVATE 0
		645	# define MAP_SHARED 0
		646	# define MAP_FIXED 0
		647	#endif
		648
		649	#define MMAP_MAGIC PERL_MAGIC_ext
		650
		651	static int
		652	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		653	{
		654	int old_errno = errno;
		655	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		656	errno = old_errno;
		657
		658	mg->mg_obj = 0; /* just in case */
		659
		660	SvREADONLY_off (sv);
		661
		662	if (SvPVX (sv) != mg->mg_ptr)
		663	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		664
		665	SvCUR_set (sv, 0);
		666	SvPVX (sv) = 0;
		667	SvOK_off (sv);
		668
415	return res;	669	return 0;
		670	}
		671
		672	static MGVTBL mmap_vtbl = {
		673	0, 0, 0, 0, mmap_free
		674	};
		675
		676	/*****************************************************************************/
		677
		678	static SV *
		679	get_cb (SV *cb_sv)
		680	{
		681	SvGETMAGIC (cb_sv);
		682	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
416	}	683	}
417		684
418	#define dREQ \	685	#define dREQ \
		686	SV *cb_cv; \
419	aio_req req; \	687	aio_req req; \
420	int req_pri = next_pri; \	688	int req_pri = next_pri; \
421	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	689	next_pri = EIO_PRI_DEFAULT; \
422	\	690	\
423	if (SvOK (callback) && !SvROK (callback)) \	691	cb_cv = get_cb (callback); \
424	croak ("callback must be undef or of reference type"); \
425	\	692	\
426	Newz (0, req, 1, eio_req); \	693	Newz (0, req, 1, eio_req); \
427	if (!req) \	694	if (!req) \
428	croak ("out of memory during eio_req allocation"); \	695	croak ("out of memory during eio_req allocation"); \
429	\	696	\
430	req->callback = newSVsv (callback); \	697	req->callback = SvREFCNT_inc (cb_cv); \
431	req->pri = req_pri	698	req->pri = req_pri
432		699
433	#define REQ_SEND \	700	#define REQ_SEND \
		701	PUTBACK; \
434	eio_submit (req); \	702	req_submit (req); \
		703	SPAGAIN; \
435	\	704	\
436	if (GIMME_V != G_VOID) \	705	if (GIMME_V != G_VOID) \
437	XPUSHs (req_sv (req, AIO_REQ_KLASS));	706	XPUSHs (req_sv (req, aio_req_stash));
438		707
439	MODULE = IO::AIO PACKAGE = IO::AIO	708	MODULE = IO::AIO PACKAGE = IO::AIO
440		709
441	PROTOTYPES: ENABLE	710	PROTOTYPES: ENABLE
442		711
443	BOOT:	712	BOOT:
444	{	713	{
445	stash = gv_stashpv ("IO::AIO", 1);	714	static const struct {
446		715	const char *name;
447	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	716	IV iv;
448	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	717	} *civ, const_iv[] = {
449	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	718	# define const_niv(name, value) { # name, (IV) value },
450	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	719	# define const_iv(name) { # name, (IV) name },
451	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	720	# define const_eio(name) { # name, (IV) EIO_ ## name },
		721	const_iv (EXDEV)
		722	const_iv (ENOSYS)
		723	const_iv (O_RDONLY)
		724	const_iv (O_WRONLY)
		725	const_iv (O_RDWR)
		726	const_iv (O_CREAT)
		727	const_iv (O_TRUNC)
		728	const_iv (O_EXCL)
		729	const_iv (O_APPEND)
452	#ifdef _WIN32	730	#ifndef _WIN32
453	X_MUTEX_CHECK (wrklock);	731	const_iv (S_IFIFO)
454	X_MUTEX_CHECK (reslock);
455	X_MUTEX_CHECK (reqlock);
456	X_MUTEX_CHECK (reqwait);
457	X_MUTEX_CHECK (preadwritelock);
458	X_MUTEX_CHECK (readdirlock);
459
460	X_COND_CHECK (reqwait);
461	#else
462	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
463	#endif	732	#endif
		733	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		734	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		735	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		736	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		737	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		738	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
464		739
		740	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		741	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		742	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		743	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		744	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		745
		746	const_iv (ST_RDONLY)
		747	const_iv (ST_NOSUID)
		748	const_iv (ST_NODEV)
		749	const_iv (ST_NOEXEC)
		750	const_iv (ST_SYNCHRONOUS)
		751	const_iv (ST_MANDLOCK)
		752	const_iv (ST_WRITE)
		753	const_iv (ST_APPEND)
		754	const_iv (ST_IMMUTABLE)
		755	const_iv (ST_NOATIME)
		756	const_iv (ST_NODIRATIME)
		757	const_iv (ST_RELATIME)
		758
		759	const_iv (PROT_NONE)
		760	const_iv (PROT_EXEC)
		761	const_iv (PROT_READ)
		762	const_iv (PROT_WRITE)
		763
		764	/*const_iv (MAP_FIXED)*/
		765	const_iv (MAP_PRIVATE)
		766	const_iv (MAP_SHARED)
		767	const_iv (MAP_ANONYMOUS)
		768
		769	/* linuxish */
		770	const_iv (MAP_HUGETLB)
		771	const_iv (MAP_LOCKED)
		772	const_iv (MAP_NORESERVE)
		773	const_iv (MAP_POPULATE)
		774	const_iv (MAP_NONBLOCK)
		775
		776	const_eio (MCL_FUTURE)
		777	const_eio (MCL_CURRENT)
		778
		779	const_eio (MS_ASYNC)
		780	const_eio (MS_INVALIDATE)
		781	const_eio (MS_SYNC)
		782
		783	const_eio (MT_MODIFY)
		784
		785	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		786	const_eio (SYNC_FILE_RANGE_WRITE)
		787	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		788
		789	const_eio (READDIR_DENTS)
		790	const_eio (READDIR_DIRS_FIRST)
		791	const_eio (READDIR_STAT_ORDER)
		792	const_eio (READDIR_FOUND_UNKNOWN)
		793
		794	const_eio (DT_UNKNOWN)
		795	const_eio (DT_FIFO)
		796	const_eio (DT_CHR)
		797	const_eio (DT_DIR)
		798	const_eio (DT_BLK)
		799	const_eio (DT_REG)
		800	const_eio (DT_LNK)
		801	const_eio (DT_SOCK)
		802	const_eio (DT_WHT)
		803	};
		804
		805	aio_stash = gv_stashpv ("IO::AIO" , 1);
		806	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		807	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		808
		809	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		810	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		811
		812	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		813
465	create_respipe ();	814	create_respipe ();
466		815
467	if (eio_init (want_poll, done_poll) < 0)	816	if (eio_init (want_poll, done_poll) < 0)
468	croak ("IO::AIO: unable to initialise eio library");	817	croak ("IO::AIO: unable to initialise eio library");
		818
		819	/* atfork child called in fifo order, so before eio's handler */
		820	X_THREAD_ATFORK (0, 0, atfork_child);
469	}	821	}
470		822
471	void	823	void
472	max_poll_reqs (int nreqs)	824	max_poll_reqs (int nreqs)
473	PROTOTYPE: $	825	PROTOTYPE: $
…		…
504	CODE:	856	CODE:
505	max_outstanding = maxreqs;	857	max_outstanding = maxreqs;
506		858
507	void	859	void
508	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	860	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
509	PROTOTYPE: $$$;$
510	PPCODE:	861	PPCODE:
511	{	862	{
512	dREQ;	863	dREQ;
513		864
514	req->type = EIO_OPEN;	865	req->type = EIO_OPEN;
…		…
520	REQ_SEND;	871	REQ_SEND;
521	}	872	}
522		873
523	void	874	void
524	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	875	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
525	PROTOTYPE: $;$
526	ALIAS:	876	ALIAS:
527	aio_fsync = EIO_FSYNC	877	aio_fsync = EIO_FSYNC
528	aio_fdatasync = EIO_FDATASYNC	878	aio_fdatasync = EIO_FDATASYNC
529	PPCODE:	879	PPCODE:
530	{	880	{
		881	int fd = s_fileno_croak (fh, 0);
531	dREQ;	882	dREQ;
532		883
533	req->type = ix;	884	req->type = ix;
534	req->sv1 = newSVsv (fh);	885	req->sv1 = newSVsv (fh);
535	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	886	req->int1 = fd;
536		887
537	REQ_SEND (req);	888	REQ_SEND (req);
538	}	889	}
539		890
540	void	891	void
		892	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		893	PPCODE:
		894	{
		895	int fd = s_fileno_croak (fh, 0);
		896	dREQ;
		897
		898	req->type = EIO_SYNC_FILE_RANGE;
		899	req->sv1 = newSVsv (fh);
		900	req->int1 = fd;
		901	req->offs = offset;
		902	req->size = nbytes;
		903	req->int2 = flags;
		904
		905	REQ_SEND (req);
		906	}
		907
		908	void
541	aio_close (SV *fh, SV *callback=&PL_sv_undef)	909	aio_close (SV *fh, SV *callback=&PL_sv_undef)
542	PROTOTYPE: $;$
543	PPCODE:	910	PPCODE:
544	{	911	{
545	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	912	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		913	int fd = s_fileno_croak (fh, 0);
546	dREQ;	914	dREQ;
547		915
548	if (close_pipe < 0)	916	if (close_pipe < 0)
549	{	917	{
550	int pipefd [2];	918	int pipefd [2];
…		…
558	}	926	}
559		927
560	req->type = EIO_DUP2;	928	req->type = EIO_DUP2;
561	req->int1 = close_pipe;	929	req->int1 = close_pipe;
562	req->sv2 = newSVsv (fh);	930	req->sv2 = newSVsv (fh);
563	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	931	req->int2 = fd;
564		932
565	REQ_SEND (req);	933	REQ_SEND (req);
566	}	934	}
567		935
568	void	936	void
569	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	937	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
570	ALIAS:	938	ALIAS:
571	aio_read = EIO_READ	939	aio_read = EIO_READ
572	aio_write = EIO_WRITE	940	aio_write = EIO_WRITE
573	PROTOTYPE: $$$$$;$
574	PPCODE:	941	PPCODE:
575	{	942	{
576	STRLEN svlen;	943	STRLEN svlen;
		944	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
577	char *svptr = SvPVbyte (data, svlen);	945	char *svptr = SvPVbyte (data, svlen);
578	UV len = SvUV (length);	946	UV len = SvUV (length);
579
580	SvUPGRADE (data, SVt_PV);
581	SvPOK_on (data);
582		947
583	if (dataoffset < 0)	948	if (dataoffset < 0)
584	dataoffset += svlen;	949	dataoffset += svlen;
585		950
586	if (dataoffset < 0 || dataoffset > svlen)	951	if (dataoffset < 0 || dataoffset > svlen)
…		…
592	if (!SvOK (length) || len + dataoffset > svlen)	957	if (!SvOK (length) || len + dataoffset > svlen)
593	len = svlen - dataoffset;	958	len = svlen - dataoffset;
594	}	959	}
595	else	960	else
596	{	961	{
597	/* read: grow scalar as necessary */	962	/* read: check type and grow scalar as necessary */
		963	SvUPGRADE (data, SVt_PV);
598	svptr = SvGROW (data, len + dataoffset + 1);	964	svptr = SvGROW (data, len + dataoffset + 1);
599	}	965	}
600		966
601	if (len < 0)
602	croak ("length must not be negative");
603
604	{	967	{
605	dREQ;	968	dREQ;
606		969
607	req->type = ix;	970	req->type = ix;
608	req->sv1 = newSVsv (fh);	971	req->sv1 = newSVsv (fh);
609	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	972	req->int1 = fd;
610	: IoOFP (sv_2io (fh)));
611	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	973	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
612	req->size = len;	974	req->size = len;
613	req->sv2 = SvREFCNT_inc (data);	975	req->sv2 = SvREFCNT_inc (data);
614	req->ptr2 = (char *)svptr + dataoffset;	976	req->ptr2 = (char *)svptr + dataoffset;
615	req->stroffset = dataoffset;	977	req->stroffset = dataoffset;
…		…
624	}	986	}
625	}	987	}
626		988
627	void	989	void
628	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	990	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
629	PROTOTYPE: $$;$
630	PPCODE:	991	PPCODE:
631	{	992	{
632	SV *data;	993	SV *data;
633	dREQ;	994	dREQ;
634
635	data = newSV (NAME_MAX);
636	SvPOK_on (data);
637		995
638	req->type = EIO_READLINK;	996	req->type = EIO_READLINK;
639	req->sv1 = newSVsv (path);	997	req->sv1 = newSVsv (path);
640	req->ptr1 = SvPVbyte_nolen (req->sv1);	998	req->ptr1 = SvPVbyte_nolen (req->sv1);
641	req->sv2 = data;
642	req->ptr2 = SvPVbyte_nolen (data);
643		999
644	REQ_SEND;	1000	REQ_SEND;
645	}	1001	}
646		1002
647	void	1003	void
648	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1004	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
649	PROTOTYPE: $$$$;$
650	PPCODE:	1005	PPCODE:
651	{	1006	{
		1007	int ifd = s_fileno_croak (in_fh , 0);
		1008	int ofd = s_fileno_croak (out_fh, 1);
652	dREQ;	1009	dREQ;
653		1010
654	req->type = EIO_SENDFILE;	1011	req->type = EIO_SENDFILE;
655	req->sv1 = newSVsv (out_fh);	1012	req->sv1 = newSVsv (out_fh);
656	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1013	req->int1 = ofd;
657	req->sv2 = newSVsv (in_fh);	1014	req->sv2 = newSVsv (in_fh);
658	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1015	req->int2 = ifd;
659	req->offs = SvVAL64 (in_offset);	1016	req->offs = in_offset;
660	req->size = length;	1017	req->size = length;
661		1018
662	REQ_SEND;	1019	REQ_SEND;
663	}	1020	}
664		1021
665	void	1022	void
666	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1023	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
667	PROTOTYPE: $$$;$
668	PPCODE:	1024	PPCODE:
669	{	1025	{
		1026	int fd = s_fileno_croak (fh, 0);
670	dREQ;	1027	dREQ;
671		1028
672	req->type = EIO_READAHEAD;	1029	req->type = EIO_READAHEAD;
673	req->sv1 = newSVsv (fh);	1030	req->sv1 = newSVsv (fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1031	req->int1 = fd;
675	req->offs = SvVAL64 (offset);	1032	req->offs = offset;
676	req->size = length;	1033	req->size = length;
677		1034
678	REQ_SEND;	1035	REQ_SEND;
679	}	1036	}
680		1037
681	void	1038	void
682	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1039	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
683	ALIAS:	1040	ALIAS:
684	aio_stat = EIO_STAT	1041	aio_stat = EIO_STAT
685	aio_lstat = EIO_LSTAT	1042	aio_lstat = EIO_LSTAT
		1043	aio_statvfs = EIO_STATVFS
686	PPCODE:	1044	PPCODE:
687	{	1045	{
688	dREQ;	1046	dREQ;
689		1047
690	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
691	if (!req->ptr2)
692	{
693	req_destroy (req);
694	croak ("out of memory during aio_stat statdata allocation");
695	}
696
697	req->flags |= EIO_FLAG_PTR2_FREE;
698	req->sv1 = newSVsv (fh_or_path);	1048	req->sv1 = newSVsv (fh_or_path);
699		1049
700	if (SvPOK (fh_or_path))	1050	if (SvPOK (req->sv1))
701	{	1051	{
702	req->type = ix;	1052	req->type = ix;
703	req->ptr1 = SvPVbyte_nolen (req->sv1);	1053	req->ptr1 = SvPVbyte_nolen (req->sv1);
704	}	1054	}
705	else	1055	else
706	{	1056	{
707	req->type = EIO_FSTAT;	1057	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1058	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
709	}	1059	}
710		1060
711	REQ_SEND;	1061	REQ_SEND;
712	}	1062	}
…		…
719		1069
720	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1070	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
721	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1071	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
722	req->sv1 = newSVsv (fh_or_path);	1072	req->sv1 = newSVsv (fh_or_path);
723		1073
724	if (SvPOK (fh_or_path))	1074	if (SvPOK (req->sv1))
725	{	1075	{
726	req->type = EIO_UTIME;	1076	req->type = EIO_UTIME;
727	req->ptr1 = SvPVbyte_nolen (req->sv1);	1077	req->ptr1 = SvPVbyte_nolen (req->sv1);
728	}	1078	}
729	else	1079	else
…		…
742	dREQ;	1092	dREQ;
743		1093
744	req->sv1 = newSVsv (fh_or_path);	1094	req->sv1 = newSVsv (fh_or_path);
745	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1095	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
746		1096
747	if (SvPOK (fh_or_path))	1097	if (SvPOK (req->sv1))
748	{	1098	{
749	req->type = EIO_TRUNCATE;	1099	req->type = EIO_TRUNCATE;
750	req->ptr1 = SvPVbyte_nolen (req->sv1);	1100	req->ptr1 = SvPVbyte_nolen (req->sv1);
751	}	1101	}
752	else	1102	else
…		…
760		1110
761	void	1111	void
762	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1112	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
763	ALIAS:	1113	ALIAS:
764	aio_chmod = EIO_CHMOD	1114	aio_chmod = EIO_CHMOD
765	aio_fchmod = EIO_FCHMOD
766	aio_mkdir = EIO_MKDIR	1115	aio_mkdir = EIO_MKDIR
767	PPCODE:	1116	PPCODE:
768	{	1117	{
769	dREQ;	1118	dREQ;
770		1119
771	req->type = ix;
772	req->int2 = mode;	1120	req->int2 = mode;
773	req->sv1 = newSVsv (fh_or_path);	1121	req->sv1 = newSVsv (fh_or_path);
774		1122
775	if (ix == EIO_FCHMOD)	1123	if (SvPOK (req->sv1))
776	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1124	{
		1125	req->type = ix;
		1126	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1127	}
777	else	1128	else
778	req->ptr1 = SvPVbyte_nolen (req->sv1);	1129	{
		1130	req->type = EIO_FCHMOD;
		1131	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1132	}
779		1133
780	REQ_SEND;	1134	REQ_SEND;
781	}	1135	}
782		1136
783	void	1137	void
…		…
788		1142
789	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1143	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
790	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1144	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
791	req->sv1 = newSVsv (fh_or_path);	1145	req->sv1 = newSVsv (fh_or_path);
792		1146
793	if (SvPOK (fh_or_path))	1147	if (SvPOK (req->sv1))
794	{	1148	{
795	req->type = EIO_CHOWN;	1149	req->type = EIO_CHOWN;
796	req->ptr1 = SvPVbyte_nolen (req->sv1);	1150	req->ptr1 = SvPVbyte_nolen (req->sv1);
797	}	1151	}
798	else	1152	else
…		…
803		1157
804	REQ_SEND;	1158	REQ_SEND;
805	}	1159	}
806		1160
807	void	1161	void
		1162	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1163	PPCODE:
		1164	{
		1165	dREQ;
		1166
		1167	req->type = EIO_READDIR;
		1168	req->sv1 = newSVsv (pathname);
		1169	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1170	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1171
		1172	if (flags & EIO_READDIR_DENTS)
		1173	req->int1 |= EIO_READDIR_CUSTOM2;
		1174
		1175	REQ_SEND;
		1176	}
		1177
		1178	void
808	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1179	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
809	ALIAS:	1180	ALIAS:
810	aio_unlink = EIO_UNLINK	1181	aio_unlink = EIO_UNLINK
811	aio_rmdir = EIO_RMDIR	1182	aio_rmdir = EIO_RMDIR
812	aio_readdir = EIO_READDIR	1183	aio_readdir = EIO_READDIR
…		…
854		1225
855	REQ_SEND;	1226	REQ_SEND;
856	}	1227	}
857		1228
858	void	1229	void
		1230	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1231	ALIAS:
		1232	aio_mtouch = EIO_MTOUCH
		1233	aio_msync = EIO_MSYNC
		1234	PPCODE:
		1235	{
		1236	STRLEN svlen;
		1237	char *svptr = SvPVbyte (data, svlen);
		1238	UV len = SvUV (length);
		1239
		1240	if (offset < 0)
		1241	offset += svlen;
		1242
		1243	if (offset < 0 || offset > svlen)
		1244	croak ("offset outside of scalar");
		1245
		1246	if (!SvOK (length) || len + offset > svlen)
		1247	len = svlen - offset;
		1248
		1249	{
		1250	dREQ;
		1251
		1252	req->type = ix;
		1253	req->sv2 = SvREFCNT_inc (data);
		1254	req->ptr2 = (char *)svptr + offset;
		1255	req->size = len;
		1256	req->int1 = flags;
		1257
		1258	REQ_SEND;
		1259	}
		1260	}
		1261
		1262	void
		1263	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1264	PPCODE:
		1265	{
		1266	STRLEN svlen;
		1267	char *svptr = SvPVbyte (data, svlen);
		1268	UV len = SvUV (length);
		1269
		1270	if (offset < 0)
		1271	offset += svlen;
		1272
		1273	if (offset < 0 || offset > svlen)
		1274	croak ("offset outside of scalar");
		1275
		1276	if (!SvOK (length) || len + offset > svlen)
		1277	len = svlen - offset;
		1278
		1279	{
		1280	dREQ;
		1281
		1282	req->type = EIO_MLOCK;
		1283	req->sv2 = SvREFCNT_inc (data);
		1284	req->ptr2 = (char *)svptr + offset;
		1285	req->size = len;
		1286
		1287	REQ_SEND;
		1288	}
		1289	}
		1290
		1291	void
		1292	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1293	PPCODE:
		1294	{
		1295	dREQ;
		1296
		1297	req->type = EIO_MLOCKALL;
		1298	req->int1 = flags;
		1299
		1300	REQ_SEND;
		1301	}
		1302
		1303	void
859	aio_busy (double delay, SV *callback=&PL_sv_undef)	1304	aio_busy (double delay, SV *callback=&PL_sv_undef)
860	PPCODE:	1305	PPCODE:
861	{	1306	{
862	dREQ;	1307	dREQ;
863		1308
…		…
867	REQ_SEND;	1312	REQ_SEND;
868	}	1313	}
869		1314
870	void	1315	void
871	aio_group (SV *callback=&PL_sv_undef)	1316	aio_group (SV *callback=&PL_sv_undef)
872	PROTOTYPE: ;$
873	PPCODE:	1317	PPCODE:
874	{	1318	{
875	dREQ;	1319	dREQ;
876		1320
877	req->type = EIO_GROUP;	1321	req->type = EIO_GROUP;
878		1322
879	eio_submit (req);	1323	req_submit (req);
880	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1324	XPUSHs (req_sv (req, aio_grp_stash));
881	}	1325	}
882		1326
883	void	1327	void
884	aio_nop (SV *callback=&PL_sv_undef)	1328	aio_nop (SV *callback=&PL_sv_undef)
885	ALIAS:	1329	ALIAS:
…		…
894	REQ_SEND;	1338	REQ_SEND;
895	}	1339	}
896		1340
897	int	1341	int
898	aioreq_pri (int pri = 0)	1342	aioreq_pri (int pri = 0)
899	PROTOTYPE: ;$
900	CODE:	1343	CODE:
901	RETVAL = next_pri - EIO_PRI_BIAS;	1344	RETVAL = next_pri;
902	if (items > 0)	1345	if (items > 0)
903	{	1346	{
904	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1347	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
905	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1348	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
906	next_pri = pri + EIO_PRI_BIAS;	1349	next_pri = pri;
907	}	1350	}
908	OUTPUT:	1351	OUTPUT:
909	RETVAL	1352	RETVAL
910		1353
911	void	1354	void
912	aioreq_nice (int nice = 0)	1355	aioreq_nice (int nice = 0)
913	CODE:	1356	CODE:
914	nice = next_pri - nice;	1357	nice = next_pri - nice;
915	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1358	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
916	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1359	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
917	next_pri = nice + EIO_PRI_BIAS;	1360	next_pri = nice;
918		1361
919	void	1362	void
920	flush ()	1363	flush ()
921	PROTOTYPE:
922	CODE:	1364	CODE:
923	while (nreqs)	1365	while (eio_nreqs ())
924	{	1366	{
925	poll_wait ();	1367	poll_wait ();
926	poll_cb ();	1368	poll_cb ();
927	}	1369	}
928		1370
929	int	1371	int
930	poll()	1372	poll ()
931	PROTOTYPE:
932	CODE:	1373	CODE:
933	poll_wait ();	1374	poll_wait ();
934	RETVAL = poll_cb ();	1375	RETVAL = poll_cb ();
935	OUTPUT:	1376	OUTPUT:
936	RETVAL	1377	RETVAL
937		1378
938	int	1379	int
939	poll_fileno()	1380	poll_fileno ()
940	PROTOTYPE:
941	CODE:	1381	CODE:
942	RETVAL = respipe [0];	1382	RETVAL = s_epipe_fd (&respipe);
943	OUTPUT:	1383	OUTPUT:
944	RETVAL	1384	RETVAL
945		1385
946	int	1386	int
947	poll_cb(...)	1387	poll_cb (...)
948	PROTOTYPE:	1388	PROTOTYPE:
949	CODE:	1389	CODE:
950	RETVAL = poll_cb ();	1390	RETVAL = poll_cb ();
951	OUTPUT:	1391	OUTPUT:
952	RETVAL	1392	RETVAL
953		1393
954	void	1394	void
955	poll_wait()	1395	poll_wait ()
956	PROTOTYPE:
957	CODE:	1396	CODE:
958	poll_wait ();	1397	poll_wait ();
959		1398
960	int	1399	int
961	nreqs()	1400	nreqs ()
962	PROTOTYPE:
963	CODE:	1401	CODE:
964	RETVAL = eio_nreqs ();	1402	RETVAL = eio_nreqs ();
965	OUTPUT:	1403	OUTPUT:
966	RETVAL	1404	RETVAL
967		1405
968	int	1406	int
969	nready()	1407	nready ()
970	PROTOTYPE:
971	CODE:	1408	CODE:
972	RETVAL = eio_nready ();	1409	RETVAL = eio_nready ();
973	OUTPUT:	1410	OUTPUT:
974	RETVAL	1411	RETVAL
975		1412
976	int	1413	int
977	npending()	1414	npending ()
978	PROTOTYPE:
979	CODE:	1415	CODE:
980	RETVAL = eio_npending ();	1416	RETVAL = eio_npending ();
981	OUTPUT:	1417	OUTPUT:
982	RETVAL	1418	RETVAL
983		1419
984	int	1420	int
985	nthreads()	1421	nthreads ()
986	PROTOTYPE:
987	CODE:	1422	CODE:
988	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1423	RETVAL = eio_nthreads ();
989	RETVAL = started;
990	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
991	OUTPUT:	1424	OUTPUT:
992	RETVAL	1425	RETVAL
		1426
		1427	int
		1428	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1429	CODE:
		1430	RETVAL = posix_fadvise (fh, offset, length, advice);
		1431	OUTPUT:
		1432	RETVAL
		1433
		1434	ssize_t
		1435	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1436	CODE:
		1437	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1438	OUTPUT:
		1439	RETVAL
		1440
		1441	void
		1442	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1443	PPCODE:
		1444	sv_unmagic (scalar, MMAP_MAGIC);
		1445	{
		1446	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1447	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1448	if (addr == (void *)-1)
		1449	XSRETURN_NO;
		1450
		1451	sv_force_normal (scalar);
		1452
		1453	/* we store the length in mg_obj, as namlen is I32 :/ */
		1454	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1455	->mg_obj = (SV *)length;
		1456
		1457	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1458
		1459	if (!(prot & PROT_WRITE))
		1460	SvREADONLY_on (scalar);
		1461
		1462	if (SvLEN (scalar))
		1463	Safefree (SvPVX (scalar));
		1464
		1465	SvPVX (scalar) = (char *)addr;
		1466	SvCUR_set (scalar, length);
		1467	SvLEN_set (scalar, 0);
		1468	SvPOK_only (scalar);
		1469
		1470	XSRETURN_YES;
		1471	}
		1472
		1473	void
		1474	munmap (SV *scalar)
		1475	CODE:
		1476	sv_unmagic (scalar, MMAP_MAGIC);
		1477
		1478	int
		1479	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1480	ALIAS:
		1481	mprotect = 1
		1482	CODE:
		1483	{
		1484	STRLEN svlen;
		1485	void *addr = SvPVbyte (scalar, svlen);
		1486	size_t len = SvUV (length);
		1487
		1488	if (offset < 0)
		1489	offset += svlen;
		1490
		1491	if (offset < 0 || offset > svlen)
		1492	croak ("offset outside of scalar");
		1493
		1494	if (!SvOK (length) || len + offset > svlen)
		1495	len = svlen - offset;
		1496
		1497	addr = (void *)(((intptr_t)addr) + offset);
		1498	eio_page_align (&addr, &len);
		1499
		1500	switch (ix)
		1501	{
		1502	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1503	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1504	}
		1505	}
		1506	OUTPUT:
		1507	RETVAL
		1508
		1509	int
		1510	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1511	CODE:
		1512	{
		1513	STRLEN svlen;
		1514	void *addr = SvPVbyte (scalar, svlen);
		1515	size_t len = SvUV (length);
		1516
		1517	if (offset < 0)
		1518	offset += svlen;
		1519
		1520	if (offset < 0 || offset > svlen)
		1521	croak ("offset outside of scalar");
		1522
		1523	if (!SvOK (length) || len + offset > svlen)
		1524	len = svlen - offset;
		1525
		1526	addr = (void *)(((intptr_t)addr) + offset);
		1527	eio_page_align (&addr, &len);
		1528	#if _POSIX_MEMLOCK
		1529	RETVAL = munlock (addr, len);
		1530	#else
		1531	RETVAL = ((errno = ENOSYS), -1);
		1532	#endif
		1533	}
		1534	OUTPUT:
		1535	RETVAL
		1536
		1537	int
		1538	munlockall ()
		1539	CODE:
		1540	#if _POSIX_MEMLOCK
		1541	munlockall ();
		1542	#else
		1543	RETVAL = -1;
		1544	errno = ENOSYS;
		1545	#endif
		1546	OUTPUT:
		1547	RETVAL
		1548
		1549	void _on_next_submit (SV *cb)
		1550	CODE:
		1551	SvREFCNT_dec (on_next_submit);
		1552	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
993		1553
994	PROTOTYPES: DISABLE	1554	PROTOTYPES: DISABLE
995		1555
996	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1556	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
997		1557
…		…
1000	CODE:	1560	CODE:
1001	eio_cancel (req);	1561	eio_cancel (req);
1002		1562
1003	void	1563	void
1004	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1564	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1005	CODE:	1565	PPCODE:
		1566	{
		1567	if (GIMME_V != G_VOID)
		1568	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1569
		1570	if (items > 1)
		1571	{
		1572	SV *cb_cv =get_cb (callback);
		1573
1006	SvREFCNT_dec (req->callback);	1574	SvREFCNT_dec (req->callback);
1007	req->callback = newSVsv (callback);	1575	req->callback = SvREFCNT_inc (cb_cv);
		1576	}
		1577	}
1008		1578
1009	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1579	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1010		1580
1011	void	1581	void
1012	add (aio_req grp, ...)	1582	add (aio_req grp, ...)
…		…
1044	AV *av;	1614	AV *av;
1045		1615
1046	grp->errorno = errno;	1616	grp->errorno = errno;
1047		1617
1048	av = newAV ();	1618	av = newAV ();
		1619	av_extend (av, items - 1);
1049		1620
1050	for (i = 1; i < items; ++i )	1621	for (i = 1; i < items; ++i )
1051	av_push (av, newSVsv (ST (i)));	1622	av_push (av, newSVsv (ST (i)));
1052		1623
1053	SvREFCNT_dec (grp->sv1);	1624	SvREFCNT_dec (grp->sv1);
…		…
1067	void	1638	void
1068	feed (aio_req grp, SV *callback=&PL_sv_undef)	1639	feed (aio_req grp, SV *callback=&PL_sv_undef)
1069	CODE:	1640	CODE:
1070	{	1641	{
1071	SvREFCNT_dec (grp->sv2);	1642	SvREFCNT_dec (grp->sv2);
1072	grp->sv2 = newSVsv (callback);	1643	grp->sv2 = newSVsv (callback);
		1644	grp->feed = aio_grp_feed;
1073		1645
1074	if (grp->int2 <= 0)	1646	if (grp->int2 <= 0)
1075	grp->int2 = 2;	1647	grp->int2 = 2;
1076		1648
1077	eio_grp_limit (grp, grp->int2);	1649	eio_grp_limit (grp, grp->int2);

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