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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.122 by root, Tue May 13 19:35:16 2008 UTC vs.
Revision 1.180 by root, Fri Feb 11 00:05:17 2011 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_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		22	# include <sys/mman.h>
		23	#endif
17		24
18	/* perl namespace pollution */	25	/* perl namespace pollution */
19	#undef VERSION	26	#undef VERSION
20		27
21	#ifdef _WIN32	28	#ifdef _WIN32
…		…
65	# include <signal.h>	72	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent	73	# define EIO_STRUCT_DIRENT struct dirent
67		74
68	#endif	75	#endif
69		76
		77	/* perl stupidly overrides readdir and maybe others */
		78	/* with thread-unsafe versions, imagine that :( */
		79	#undef readdir
		80	#undef opendir
		81	#undef closedir
		82
70	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
71		84
72	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
73	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
74	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
75	#else	90	#else
		91	# define VAL64 NV
76	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
77	#endif	94	#endif
78		95
79	static HV *stash;	96	/*****************************************************************************/
		97
		98	#if __GNUC__ >= 3
		99	# define expect(expr,value) __builtin_expect ((expr),(value))
		100	#else
		101	# define expect(expr,value) (expr)
		102	#endif
		103
		104	#define expect_false(expr) expect ((expr) != 0, 0)
		105	#define expect_true(expr) expect ((expr) != 0, 1)
		106
		107	/*****************************************************************************/
		108
80	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
		110	typedef int aio_rfd; /* read file desriptor */
		111	typedef int aio_wfd; /* write file descriptor */
81		112
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		114
85	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
86	SV *callback; \	116	SV *callback; \
87	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
88	STRLEN stroffset; \	118	STRLEN stroffset; \
89	SV *self;	119	SV *self;
90		120
91	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
92		122
		123	#include "libeio/config.h"
93	#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 S_IFIFO
		214	# define S_IFIFO 0
		215	#endif
		216	#ifndef S_IFCHR
		217	# define S_IFCHR 0
		218	#endif
		219	#ifndef S_IFBLK
		220	# define S_IFBLK 0
		221	#endif
		222	#ifndef S_IFLNK
		223	# define S_IFLNK 0
		224	#endif
		225	#ifndef S_IFREG
		226	# define S_IFREG 0
		227	#endif
		228	#ifndef S_IFDIR
		229	# define S_IFDIR 0
		230	#endif
		231	#ifndef S_IFWHT
		232	# define S_IFWHT 0
		233	#endif
		234	#ifndef S_IFSOCK
		235	# define S_IFSOCK 0
		236	#endif
		237
		238	#ifndef MAP_ANONYMOUS
		239	# ifdef MAP_ANON
		240	# define MAP_ANONYMOUS MAP_ANON
		241	# else
		242	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		243	# endif
		244	#endif
		245	#ifndef MAP_HUGETLB
		246	# define MAP_HUGETLB 0
		247	#endif
		248	#ifndef MAP_LOCKED
		249	# define MAP_LOCKED 0
		250	#endif
		251	#ifndef MAP_NORESERVE
		252	# define MAP_NORESERVE 0
		253	#endif
		254	#ifndef MAP_POPULATE
		255	# define MAP_POPULATE 0
		256	#endif
		257	#ifndef MAP_NONBLOCK
		258	# define MAP_NONBLOCK 0
		259	#endif
		260
		261	#ifndef makedev
		262	# define makedev(maj,min) (((maj) << 8) | (min))
		263	#endif
		264	#ifndef major
		265	# define major(dev) ((dev) >> 8)
		266	#endif
		267	#ifndef minor
		268	# define minor(dev) ((dev) & 0xff)
		269	#endif
		270
		271	#ifndef PAGESIZE
		272	# define PAGESIZE sysconf (_SC_PAGESIZE)
		273	#endif
94		274
95	static int req_invoke (eio_req *req);	275	static int req_invoke (eio_req *req);
96	#define EIO_FINISH(req) req_invoke (req)	276	#define EIO_FINISH(req) req_invoke (req)
97	static void aio_grp_feed (eio_req *grp);
98	#define EIO_FEED(req) aio_grp_feed (req)
99	static void req_destroy (eio_req *grp);	277	static void req_destroy (eio_req *grp);
100	#define EIO_DESTROY(req) req_destroy (req)	278	#define EIO_DESTROY(req) req_destroy (req)
101		279
102	enum {	280	enum {
103	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	281	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
110		288
111	static SV *on_next_submit;	289	static SV *on_next_submit;
112	static int next_pri = EIO_PRI_DEFAULT;	290	static int next_pri = EIO_PRI_DEFAULT;
113	static int max_outstanding;	291	static int max_outstanding;
114		292
115	static int respipe_osf [2], respipe [2] = { -1, -1 };	293	static s_epipe respipe;
116		294
117	static void req_destroy (aio_req req);	295	static void req_destroy (aio_req req);
118	static void req_cancel (aio_req req);	296	static void req_cancel (aio_req req);
119		297
120	static void want_poll (void)	298	static void want_poll (void)
121	{	299	{
122	/* write a dummy byte to the pipe so fh becomes ready */	300	/* write a dummy byte to the pipe so fh becomes ready */
123	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	301	s_epipe_signal (&respipe);
124	}	302	}
125		303
126	static void done_poll (void)	304	static void done_poll (void)
127	{	305	{
128	/* read any signals sent by the worker threads */	306	/* read any signals sent by the worker threads */
129	char buf [4];	307	s_epipe_drain (&respipe);
130	while (respipe_read (respipe [0], buf, 4) == 4)
131	;
132	}	308	}
133		309
134	/* must be called at most once */	310	/* must be called at most once */
135	static SV *req_sv (aio_req req, const char *klass)	311	static SV *req_sv (aio_req req, HV *stash)
136	{	312	{
137	if (!req->self)	313	if (!req->self)
138	{	314	{
139	req->self = (SV *)newHV ();	315	req->self = (SV *)newHV ();
140	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	316	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
141	}	317	}
142		318
143	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	319	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
144	}	320	}
145		321
146	static aio_req SvAIO_REQ (SV *sv)	322	static aio_req SvAIO_REQ (SV *sv)
147	{	323	{
148	MAGIC *mg;	324	MAGIC *mg;
149		325
150	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	326	if (!SvROK (sv)
		327	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		328	&& SvSTASH (SvRV (sv)) != aio_req_stash
		329	&& !sv_derived_from (sv, "IO::AIO::REQ")))
151	croak ("object of class " AIO_REQ_KLASS " expected");	330	croak ("object of class IO::AIO::REQ expected");
152		331
153	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	332	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
154		333
155	return mg ? (aio_req)mg->mg_ptr : 0;	334	return mg ? (aio_req)mg->mg_ptr : 0;
156	}	335	}
…		…
162	dSP;	341	dSP;
163		342
164	ENTER;	343	ENTER;
165	SAVETMPS;	344	SAVETMPS;
166	PUSHMARK (SP);	345	PUSHMARK (SP);
167	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	346	XPUSHs (req_sv (grp, aio_grp_stash));
168	PUTBACK;	347	PUTBACK;
169	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	348	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
170	SPAGAIN;	349	SPAGAIN;
171	FREETMPS;	350	FREETMPS;
172	LEAVE;	351	LEAVE;
…		…
175		354
176	static void req_submit (eio_req *req)	355	static void req_submit (eio_req *req)
177	{	356	{
178	eio_submit (req);	357	eio_submit (req);
179		358
180	if (on_next_submit)	359	if (expect_false (on_next_submit))
181	{	360	{
182	dSP;	361	dSP;
183	SV *cb = sv_2mortal (on_next_submit);	362	SV *cb = sv_2mortal (on_next_submit);
184		363
185	on_next_submit = 0;	364	on_next_submit = 0;
…		…
190	}	369	}
191	}	370	}
192		371
193	static int req_invoke (eio_req *req)	372	static int req_invoke (eio_req *req)
194	{	373	{
195	dSP;
196
197	if (req->flags & FLAG_SV2_RO_OFF)	374	if (req->flags & FLAG_SV2_RO_OFF)
198	SvREADONLY_off (req->sv2);	375	SvREADONLY_off (req->sv2);
199		376
200	if (!EIO_CANCELLED (req) && SvOK (req->callback))	377	if (!EIO_CANCELLED (req) && req->callback)
201	{	378	{
		379	dSP;
		380	static SV *sv_result_cache; /* caches the result integer SV */
		381	SV *sv_result;
		382
202	ENTER;	383	ENTER;
203	SAVETMPS;	384	SAVETMPS;
204	PUSHMARK (SP);	385	PUSHMARK (SP);
205	EXTEND (SP, 1);	386	EXTEND (SP, 1);
		387
		388	/* do not recreate the result IV from scratch each time */
		389	if (expect_true (sv_result_cache))
		390	{
		391	sv_result = sv_result_cache; sv_result_cache = 0;
		392	SvIV_set (sv_result, req->result);
		393	SvIOK_only (sv_result);
		394	}
		395	else
		396	{
		397	sv_result = newSViv (req->result);
		398	SvREADONLY_on (sv_result);
		399	}
206		400
207	switch (req->type)	401	switch (req->type)
208	{	402	{
209	case EIO_READDIR:	403	case EIO_READDIR:
210	{	404	{
211	SV *rv = &PL_sv_undef;	405	SV *rv = &PL_sv_undef;
212		406
213	if (req->result >= 0)	407	if (req->result >= 0)
214	{	408	{
215	int i;	409	int i;
216	char *buf = req->ptr2;	410	char *names = (char *)req->ptr2;
		411	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
217	AV *av = newAV ();	412	AV *av = newAV ();
218		413
219	av_extend (av, req->result - 1);	414	av_extend (av, req->result - 1);
220		415
221	for (i = 0; i < req->result; ++i)	416	for (i = 0; i < req->result; ++i)
222	{	417	{
223	SV *sv = newSVpv (buf, 0);	418	if (req->int1 & EIO_READDIR_DENTS)
		419	{
		420	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
224		421
		422	if (req->int1 & EIO_READDIR_CUSTOM2)
		423	{
		424	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		425	AV *avent = newAV ();
		426
		427	av_extend (avent, 2);
		428
		429	if (!sv_type [ent->type])
		430	{
		431	sv_type [ent->type] = newSViv (ent->type);
		432	SvREADONLY_on (sv_type [ent->type]);
		433	}
		434
		435	av_store (avent, 0, namesv);
		436	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		437	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		438
		439	av_store (av, i, newRV_noinc ((SV *)avent));
		440	}
		441	else
225	av_store (av, i, sv);	442	av_store (av, i, namesv);
		443
		444	++ent;
		445	}
		446	else
		447	{
		448	SV *name = newSVpv (names, 0);
		449	av_store (av, i, name);
226	buf += SvCUR (sv) + 1;	450	names += SvCUR (name) + 1;
		451	}
227	}	452	}
228		453
229	rv = sv_2mortal (newRV_noinc ((SV *)av));	454	rv = sv_2mortal (newRV_noinc ((SV *)av));
230	}	455	}
231		456
232	PUSHs (rv);	457	PUSHs (rv);
		458
		459	if (req->int1 & EIO_READDIR_CUSTOM1)
		460	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
233	}	461	}
234	break;	462	break;
235		463
236	case EIO_OPEN:	464	case EIO_OPEN:
237	{	465	{
…		…
243	GV *gv = (GV *)sv_newmortal ();	471	GV *gv = (GV *)sv_newmortal ();
244	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	472	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
245	char sym [64];	473	char sym [64];
246	int symlen;	474	int symlen;
247		475
248	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	476	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
249	gv_init (gv, stash, sym, symlen, 0);	477	gv_init (gv, aio_stash, sym, symlen, 0);
250		478
251	symlen = snprintf (	479	symlen = snprintf (
252	sym,	480	sym,
253	sizeof (sym),	481	sizeof (sym),
254	"%s&=%d",	482	"%s&=%d",
255	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	483	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
256	req->result	484	(int)req->result
257	);	485	);
258		486
259	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	487	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
260	fh = (SV *)gv;	488	fh = (SV *)gv;
261	}	489	}
262		490
263	PUSHs (fh);	491	PUSHs (fh);
264	}	492	}
		493	break;
		494
		495	case EIO_STATVFS:
		496	case EIO_FSTATVFS:
		497	{
		498	SV *rv = &PL_sv_undef;
		499
		500	if (req->result >= 0)
		501	{
		502	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		503	HV *hv = newHV ();
		504
		505	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		506
		507	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		508	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		509	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		510	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		511	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		512	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		513	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		514	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		515	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		516	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		517	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		518	}
		519
		520	PUSHs (rv);
		521	}
		522
265	break;	523	break;
266		524
267	case EIO_GROUP:	525	case EIO_GROUP:
268	req->int1 = 2; /* mark group as finished */	526	req->int1 = 2; /* mark group as finished */
269		527
…		…
291	case EIO_LSTAT:	549	case EIO_LSTAT:
292	case EIO_FSTAT:	550	case EIO_FSTAT:
293	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	551	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
294	PL_laststatval = req->result;	552	PL_laststatval = req->result;
295	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	553	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
296	PUSHs (sv_2mortal (newSViv (req->result)));	554	PUSHs (sv_result);
297	break;	555	break;
298		556
299	case EIO_READ:	557	case EIO_READ:
		558	{
300	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	559	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
301	*SvEND (req->sv2) = 0;	560	*SvEND (req->sv2) = 0;
302	PUSHs (sv_2mortal (newSViv (req->result)));	561	SvPOK_only (req->sv2);
		562	SvSETMAGIC (req->sv2);
		563	PUSHs (sv_result);
		564	}
303	break;	565	break;
304		566
305	case EIO_DUP2:	567	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
306	if (req->result > 0)	568	if (req->result > 0)
307	req->result = 0;	569	SvIV_set (sv_result, 0);
308	/* FALLTHROUGH */	570	/* FALLTHROUGH */
309		571
310	default:	572	default:
311	PUSHs (sv_2mortal (newSViv (req->result)));	573	PUSHs (sv_result);
312	break;	574	break;
313	}	575	}
314		576
315	errno = req->errorno;	577	errno = req->errorno;
316		578
317	PUTBACK;	579	PUTBACK;
318	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	580	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
319	SPAGAIN;	581	SPAGAIN;
		582
		583	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		584	SvREFCNT_dec (sv_result);
		585	else
		586	sv_result_cache = sv_result;
320		587
321	FREETMPS;	588	FREETMPS;
322	LEAVE;	589	LEAVE;
323		590
324	PUTBACK;	591	PUTBACK;
…		…
353	grp->sv2 = 0;	620	grp->sv2 = 0;
354		621
355	eio_grp_cancel (grp);	622	eio_grp_cancel (grp);
356	}	623	}
357		624
358	#ifdef USE_SOCKETS_AS_HANDLES
359	# define TO_SOCKET(x) (win32_get_osfhandle (x))
360	#else
361	# define TO_SOCKET(x) (x)
362	#endif
363
364	static void	625	static void
365	create_respipe (void)	626	create_respipe (void)
366	{	627	{
367	int old_readfd = respipe [0];
368
369	if (respipe [1] >= 0)
370	respipe_close (TO_SOCKET (respipe [1]));
371
372	#ifdef _WIN32
373	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
374	#else
375	if (pipe (respipe))	628	if (s_epipe_renew (&respipe))
376	#endif
377	croak ("unable to initialize result pipe");	629	croak ("IO::AIO: unable to initialize result pipe");
378
379	if (old_readfd >= 0)
380	{
381	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
382	croak ("unable to initialize result pipe(2)");
383
384	respipe_close (respipe [0]);
385	respipe [0] = old_readfd;
386	}
387
388	#ifdef _WIN32
389	int arg = 1;
390	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
391	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
392	#else
393	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
394	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
395	#endif
396	croak ("unable to initialize result pipe(3)");
397
398	respipe_osf [0] = TO_SOCKET (respipe [0]);
399	respipe_osf [1] = TO_SOCKET (respipe [1]);
400	}	630	}
401		631
402	static void poll_wait (void)	632	static void poll_wait (void)
403	{	633	{
404	fd_set rfd;
405
406	while (eio_nreqs ())	634	while (eio_nreqs ())
407	{	635	{
408	int size;	636	int size;
409		637
410	X_LOCK (reslock);	638	X_LOCK (reslock);
…		…
412	X_UNLOCK (reslock);	640	X_UNLOCK (reslock);
413		641
414	if (size)	642	if (size)
415	return;	643	return;
416		644
417	maybe_start_thread ();	645	etp_maybe_start_thread ();
418		646
419	FD_ZERO (&rfd);	647	s_epipe_wait (&respipe);
420	FD_SET (respipe [0], &rfd);
421
422	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
423	}	648	}
424	}	649	}
425		650
426	static int poll_cb (void)	651	static int poll_cb (void)
427	{	652	{
428	int res;	653	for (;;)
429
430	do
431	{	654	{
432	res = eio_poll ();	655	int res = eio_poll ();
433		656
434	if (res > 0)	657	if (res > 0)
435	croak (0);	658	croak (0);
		659
		660	if (!max_outstanding || max_outstanding > eio_nreqs ())
		661	return res;
		662
		663	poll_wait ();
436	}	664	}
437	while (max_outstanding && max_outstanding <= eio_nreqs ());
438
439	return res;
440	}	665	}
441		666
442	static void atfork_child (void)	667	static void atfork_child (void)
443	{	668	{
444	create_respipe ();	669	create_respipe ();
445	}	670	}
446		671
		672	/*****************************************************************************/
		673
		674	#if !_POSIX_MAPPED_FILES
		675	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		676	# define munmap(addr,length) (errno = ENOSYS, -1)
		677	#endif
		678
		679	#if !_POSIX_MEMORY_PROTECTION
		680	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		681	# define PROT_NONE 0
		682	# define PROT_WRITE 0
		683	# define MAP_PRIVATE 0
		684	# define MAP_SHARED 0
		685	# define MAP_FIXED 0
		686	#endif
		687
		688	#define MMAP_MAGIC PERL_MAGIC_ext
		689
		690	static int
		691	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		692	{
		693	int old_errno = errno;
		694	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		695	errno = old_errno;
		696
		697	mg->mg_obj = 0; /* just in case */
		698
		699	SvREADONLY_off (sv);
		700
		701	if (SvPVX (sv) != mg->mg_ptr)
		702	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		703
		704	SvCUR_set (sv, 0);
		705	SvPVX (sv) = 0;
		706	SvOK_off (sv);
		707
		708	return 0;
		709	}
		710
		711	static MGVTBL mmap_vtbl = {
		712	0, 0, 0, 0, mmap_free
		713	};
		714
		715	/*****************************************************************************/
		716
		717	static SV *
		718	get_cb (SV *cb_sv)
		719	{
		720	SvGETMAGIC (cb_sv);
		721	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		722	}
		723
447	#define dREQ \	724	#define dREQ \
		725	SV *cb_cv; \
448	aio_req req; \	726	aio_req req; \
449	int req_pri = next_pri; \	727	int req_pri = next_pri; \
450	next_pri = EIO_PRI_DEFAULT; \	728	next_pri = EIO_PRI_DEFAULT; \
451	\	729	\
452	if (SvOK (callback) && !SvROK (callback)) \	730	cb_cv = get_cb (callback); \
453	croak ("callback must be undef or of reference type"); \
454	\	731	\
455	Newz (0, req, 1, eio_req); \	732	Newz (0, req, 1, eio_req); \
456	if (!req) \	733	if (!req) \
457	croak ("out of memory during eio_req allocation"); \	734	croak ("out of memory during eio_req allocation"); \
458	\	735	\
459	req->callback = newSVsv (callback); \	736	req->callback = SvREFCNT_inc (cb_cv); \
460	req->pri = req_pri	737	req->pri = req_pri
461		738
462	#define REQ_SEND \	739	#define REQ_SEND \
		740	PUTBACK; \
463	req_submit (req); \	741	req_submit (req); \
		742	SPAGAIN; \
464	\	743	\
465	if (GIMME_V != G_VOID) \	744	if (GIMME_V != G_VOID) \
466	XPUSHs (req_sv (req, AIO_REQ_KLASS));	745	XPUSHs (req_sv (req, aio_req_stash));
467		746
468	MODULE = IO::AIO PACKAGE = IO::AIO	747	MODULE = IO::AIO PACKAGE = IO::AIO
469		748
470	PROTOTYPES: ENABLE	749	PROTOTYPES: ENABLE
471		750
472	BOOT:	751	BOOT:
473	{	752	{
		753	static const struct {
		754	const char *name;
		755	IV iv;
		756	} *civ, const_iv[] = {
		757	# define const_niv(name, value) { # name, (IV) value },
		758	# define const_iv(name) { # name, (IV) name },
		759	# define const_eio(name) { # name, (IV) EIO_ ## name },
		760	const_iv (EXDEV)
		761	const_iv (ENOSYS)
		762	const_iv (O_RDONLY)
		763	const_iv (O_WRONLY)
		764	const_iv (O_RDWR)
		765	const_iv (O_CREAT)
		766	const_iv (O_TRUNC)
		767	const_iv (O_EXCL)
		768	const_iv (O_APPEND)
		769
		770	const_iv (S_IFIFO)
		771	const_iv (S_IFCHR)
		772	const_iv (S_IFBLK)
		773	const_iv (S_IFLNK)
		774	const_iv (S_IFREG)
		775	const_iv (S_IFDIR)
		776	const_iv (S_IFWHT)
		777	const_iv (S_IFSOCK)
		778	const_iv (S_IFMT)
		779
		780	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		781	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		782	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		783	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		784	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		785	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		786
		787	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		788	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		789	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		790	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		791	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		792
		793	const_iv (ST_RDONLY)
		794	const_iv (ST_NOSUID)
		795	const_iv (ST_NODEV)
		796	const_iv (ST_NOEXEC)
		797	const_iv (ST_SYNCHRONOUS)
		798	const_iv (ST_MANDLOCK)
		799	const_iv (ST_WRITE)
		800	const_iv (ST_APPEND)
		801	const_iv (ST_IMMUTABLE)
		802	const_iv (ST_NOATIME)
		803	const_iv (ST_NODIRATIME)
		804	const_iv (ST_RELATIME)
		805
		806	const_iv (PROT_NONE)
		807	const_iv (PROT_EXEC)
		808	const_iv (PROT_READ)
		809	const_iv (PROT_WRITE)
		810
		811	/*const_iv (MAP_FIXED)*/
		812	const_iv (MAP_PRIVATE)
		813	const_iv (MAP_SHARED)
		814	const_iv (MAP_ANONYMOUS)
		815
		816	/* linuxish */
		817	const_iv (MAP_HUGETLB)
		818	const_iv (MAP_LOCKED)
		819	const_iv (MAP_NORESERVE)
		820	const_iv (MAP_POPULATE)
		821	const_iv (MAP_NONBLOCK)
		822
		823	const_eio (MCL_FUTURE)
		824	const_eio (MCL_CURRENT)
		825
		826	const_eio (MS_ASYNC)
		827	const_eio (MS_INVALIDATE)
		828	const_eio (MS_SYNC)
		829
		830	const_eio (MT_MODIFY)
		831
		832	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		833	const_eio (SYNC_FILE_RANGE_WRITE)
		834	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		835
		836	const_eio (READDIR_DENTS)
		837	const_eio (READDIR_DIRS_FIRST)
		838	const_eio (READDIR_STAT_ORDER)
		839	const_eio (READDIR_FOUND_UNKNOWN)
		840
		841	const_eio (DT_UNKNOWN)
		842	const_eio (DT_FIFO)
		843	const_eio (DT_CHR)
		844	const_eio (DT_DIR)
		845	const_eio (DT_BLK)
		846	const_eio (DT_REG)
		847	const_eio (DT_LNK)
		848	const_eio (DT_SOCK)
		849	const_eio (DT_WHT)
		850	};
		851
474	stash = gv_stashpv ("IO::AIO", 1);	852	aio_stash = gv_stashpv ("IO::AIO" , 1);
		853	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		854	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
475		855
476	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	856	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
477	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	857	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
478	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
479	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
480	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
481	#ifndef _WIN32
482	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
483	#endif
484		858
		859	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		860
485	create_respipe ();	861	create_respipe ();
486		862
487	if (eio_init (want_poll, done_poll) < 0)	863	if (eio_init (want_poll, done_poll) < 0)
488	croak ("IO::AIO: unable to initialise eio library");	864	croak ("IO::AIO: unable to initialise eio library");
489		865
490	/* atfork child called in fifo order, so before eio's handler */	866	/* atfork child called in fifo order, so before eio's handler */
491	X_THREAD_ATFORK (0, 0, atfork_child);	867	X_THREAD_ATFORK (0, 0, atfork_child);
492	}	868	}
493		869
494	void	870	void
495	max_poll_reqs (int nreqs)	871	max_poll_reqs (int nreqs)
496	PROTOTYPE: $	872	PROTOTYPE: $
…		…
527	CODE:	903	CODE:
528	max_outstanding = maxreqs;	904	max_outstanding = maxreqs;
529		905
530	void	906	void
531	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	907	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
532	PROTOTYPE: $$$;$
533	PPCODE:	908	PPCODE:
534	{	909	{
535	dREQ;	910	dREQ;
536		911
537	req->type = EIO_OPEN;	912	req->type = EIO_OPEN;
…		…
543	REQ_SEND;	918	REQ_SEND;
544	}	919	}
545		920
546	void	921	void
547	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	922	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
548	PROTOTYPE: $;$
549	ALIAS:	923	ALIAS:
550	aio_fsync = EIO_FSYNC	924	aio_fsync = EIO_FSYNC
551	aio_fdatasync = EIO_FDATASYNC	925	aio_fdatasync = EIO_FDATASYNC
552	PPCODE:	926	PPCODE:
553	{	927	{
		928	int fd = s_fileno_croak (fh, 0);
554	dREQ;	929	dREQ;
555		930
556	req->type = ix;	931	req->type = ix;
557	req->sv1 = newSVsv (fh);	932	req->sv1 = newSVsv (fh);
558	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	933	req->int1 = fd;
559		934
560	REQ_SEND (req);	935	REQ_SEND (req);
561	}	936	}
562		937
563	void	938	void
		939	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		940	PPCODE:
		941	{
		942	int fd = s_fileno_croak (fh, 0);
		943	dREQ;
		944
		945	req->type = EIO_SYNC_FILE_RANGE;
		946	req->sv1 = newSVsv (fh);
		947	req->int1 = fd;
		948	req->offs = offset;
		949	req->size = nbytes;
		950	req->int2 = flags;
		951
		952	REQ_SEND (req);
		953	}
		954
		955	void
564	aio_close (SV *fh, SV *callback=&PL_sv_undef)	956	aio_close (SV *fh, SV *callback=&PL_sv_undef)
565	PROTOTYPE: $;$
566	PPCODE:	957	PPCODE:
567	{	958	{
568	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	959	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		960	int fd = s_fileno_croak (fh, 0);
569	dREQ;	961	dREQ;
570		962
571	if (close_pipe < 0)	963	if (close_pipe < 0)
572	{	964	{
573	int pipefd [2];	965	int pipefd [2];
…		…
581	}	973	}
582		974
583	req->type = EIO_DUP2;	975	req->type = EIO_DUP2;
584	req->int1 = close_pipe;	976	req->int1 = close_pipe;
585	req->sv2 = newSVsv (fh);	977	req->sv2 = newSVsv (fh);
586	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	978	req->int2 = fd;
587		979
588	REQ_SEND (req);	980	REQ_SEND (req);
589	}	981	}
590		982
591	void	983	void
592	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	984	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
593	ALIAS:	985	ALIAS:
594	aio_read = EIO_READ	986	aio_read = EIO_READ
595	aio_write = EIO_WRITE	987	aio_write = EIO_WRITE
596	PROTOTYPE: $$$$$;$
597	PPCODE:	988	PPCODE:
598	{	989	{
599	STRLEN svlen;	990	STRLEN svlen;
		991	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600	char *svptr = SvPVbyte (data, svlen);	992	char *svptr = SvPVbyte (data, svlen);
601	UV len = SvUV (length);	993	UV len = SvUV (length);
602
603	SvUPGRADE (data, SVt_PV);
604	SvPOK_on (data);
605		994
606	if (dataoffset < 0)	995	if (dataoffset < 0)
607	dataoffset += svlen;	996	dataoffset += svlen;
608		997
609	if (dataoffset < 0 || dataoffset > svlen)	998	if (dataoffset < 0 || dataoffset > svlen)
…		…
615	if (!SvOK (length) || len + dataoffset > svlen)	1004	if (!SvOK (length) || len + dataoffset > svlen)
616	len = svlen - dataoffset;	1005	len = svlen - dataoffset;
617	}	1006	}
618	else	1007	else
619	{	1008	{
620	/* read: grow scalar as necessary */	1009	/* read: check type and grow scalar as necessary */
		1010	SvUPGRADE (data, SVt_PV);
621	svptr = SvGROW (data, len + dataoffset + 1);	1011	svptr = SvGROW (data, len + dataoffset + 1);
622	}	1012	}
623		1013
624	if (len < 0)
625	croak ("length must not be negative");
626
627	{	1014	{
628	dREQ;	1015	dREQ;
629		1016
630	req->type = ix;	1017	req->type = ix;
631	req->sv1 = newSVsv (fh);	1018	req->sv1 = newSVsv (fh);
632	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1019	req->int1 = fd;
633	: IoOFP (sv_2io (fh)));
634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1020	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635	req->size = len;	1021	req->size = len;
636	req->sv2 = SvREFCNT_inc (data);	1022	req->sv2 = SvREFCNT_inc (data);
637	req->ptr2 = (char *)svptr + dataoffset;	1023	req->ptr2 = (char *)svptr + dataoffset;
638	req->stroffset = dataoffset;	1024	req->stroffset = dataoffset;
…		…
647	}	1033	}
648	}	1034	}
649		1035
650	void	1036	void
651	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1037	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
652	PROTOTYPE: $$;$
653	PPCODE:	1038	PPCODE:
654	{	1039	{
655	SV *data;	1040	SV *data;
656	dREQ;	1041	dREQ;
657		1042
…		…
661		1046
662	REQ_SEND;	1047	REQ_SEND;
663	}	1048	}
664		1049
665	void	1050	void
666	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1051	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
667	PROTOTYPE: $$$$;$
668	PPCODE:	1052	PPCODE:
669	{	1053	{
		1054	int ifd = s_fileno_croak (in_fh , 0);
		1055	int ofd = s_fileno_croak (out_fh, 1);
670	dREQ;	1056	dREQ;
671		1057
672	req->type = EIO_SENDFILE;	1058	req->type = EIO_SENDFILE;
673	req->sv1 = newSVsv (out_fh);	1059	req->sv1 = newSVsv (out_fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1060	req->int1 = ofd;
675	req->sv2 = newSVsv (in_fh);	1061	req->sv2 = newSVsv (in_fh);
676	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1062	req->int2 = ifd;
677	req->offs = SvVAL64 (in_offset);	1063	req->offs = in_offset;
678	req->size = length;	1064	req->size = length;
679		1065
680	REQ_SEND;	1066	REQ_SEND;
681	}	1067	}
682		1068
683	void	1069	void
684	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1070	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	1071	PPCODE:
687	{	1072	{
		1073	int fd = s_fileno_croak (fh, 0);
688	dREQ;	1074	dREQ;
689		1075
690	req->type = EIO_READAHEAD;	1076	req->type = EIO_READAHEAD;
691	req->sv1 = newSVsv (fh);	1077	req->sv1 = newSVsv (fh);
692	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1078	req->int1 = fd;
693	req->offs = SvVAL64 (offset);	1079	req->offs = offset;
694	req->size = length;	1080	req->size = length;
695		1081
696	REQ_SEND;	1082	REQ_SEND;
697	}	1083	}
698		1084
699	void	1085	void
700	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1086	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
701	ALIAS:	1087	ALIAS:
702	aio_stat = EIO_STAT	1088	aio_stat = EIO_STAT
703	aio_lstat = EIO_LSTAT	1089	aio_lstat = EIO_LSTAT
		1090	aio_statvfs = EIO_STATVFS
704	PPCODE:	1091	PPCODE:
705	{	1092	{
706	dREQ;	1093	dREQ;
707		1094
708	req->sv1 = newSVsv (fh_or_path);	1095	req->sv1 = newSVsv (fh_or_path);
…		…
712	req->type = ix;	1099	req->type = ix;
713	req->ptr1 = SvPVbyte_nolen (req->sv1);	1100	req->ptr1 = SvPVbyte_nolen (req->sv1);
714	}	1101	}
715	else	1102	else
716	{	1103	{
717	req->type = EIO_FSTAT;	1104	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
718	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1105	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719	}	1106	}
720		1107
721	REQ_SEND;	1108	REQ_SEND;
722	}	1109	}
		1110
		1111	UV
		1112	major (UV dev)
		1113	ALIAS:
		1114	minor = 1
		1115	CODE:
		1116	RETVAL = ix ? major (dev) : minor (dev);
		1117	OUTPUT:
		1118	RETVAL
		1119
		1120	UV
		1121	makedev (UV maj, UV min)
		1122	CODE:
		1123	RETVAL = makedev (maj, min);
		1124	OUTPUT:
		1125	RETVAL
723		1126
724	void	1127	void
725	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1128	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
726	PPCODE:	1129	PPCODE:
727	{	1130	{
…		…
817		1220
818	REQ_SEND;	1221	REQ_SEND;
819	}	1222	}
820		1223
821	void	1224	void
		1225	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1226	PPCODE:
		1227	{
		1228	dREQ;
		1229
		1230	req->type = EIO_READDIR;
		1231	req->sv1 = newSVsv (pathname);
		1232	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1233	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1234
		1235	if (flags & EIO_READDIR_DENTS)
		1236	req->int1 |= EIO_READDIR_CUSTOM2;
		1237
		1238	REQ_SEND;
		1239	}
		1240
		1241	void
822	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1242	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
823	ALIAS:	1243	ALIAS:
824	aio_unlink = EIO_UNLINK	1244	aio_unlink = EIO_UNLINK
825	aio_rmdir = EIO_RMDIR	1245	aio_rmdir = EIO_RMDIR
826	aio_readdir = EIO_READDIR	1246	aio_readdir = EIO_READDIR
…		…
868		1288
869	REQ_SEND;	1289	REQ_SEND;
870	}	1290	}
871		1291
872	void	1292	void
		1293	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1294	ALIAS:
		1295	aio_mtouch = EIO_MTOUCH
		1296	aio_msync = EIO_MSYNC
		1297	PPCODE:
		1298	{
		1299	STRLEN svlen;
		1300	char *svptr = SvPVbyte (data, svlen);
		1301	UV len = SvUV (length);
		1302
		1303	if (offset < 0)
		1304	offset += svlen;
		1305
		1306	if (offset < 0 || offset > svlen)
		1307	croak ("offset outside of scalar");
		1308
		1309	if (!SvOK (length) || len + offset > svlen)
		1310	len = svlen - offset;
		1311
		1312	{
		1313	dREQ;
		1314
		1315	req->type = ix;
		1316	req->sv2 = SvREFCNT_inc (data);
		1317	req->ptr2 = (char *)svptr + offset;
		1318	req->size = len;
		1319	req->int1 = flags;
		1320
		1321	REQ_SEND;
		1322	}
		1323	}
		1324
		1325	void
		1326	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1327	PPCODE:
		1328	{
		1329	STRLEN svlen;
		1330	char *svptr = SvPVbyte (data, svlen);
		1331	UV len = SvUV (length);
		1332
		1333	if (offset < 0)
		1334	offset += svlen;
		1335
		1336	if (offset < 0 || offset > svlen)
		1337	croak ("offset outside of scalar");
		1338
		1339	if (!SvOK (length) || len + offset > svlen)
		1340	len = svlen - offset;
		1341
		1342	{
		1343	dREQ;
		1344
		1345	req->type = EIO_MLOCK;
		1346	req->sv2 = SvREFCNT_inc (data);
		1347	req->ptr2 = (char *)svptr + offset;
		1348	req->size = len;
		1349
		1350	REQ_SEND;
		1351	}
		1352	}
		1353
		1354	void
		1355	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1356	PPCODE:
		1357	{
		1358	dREQ;
		1359
		1360	req->type = EIO_MLOCKALL;
		1361	req->int1 = flags;
		1362
		1363	REQ_SEND;
		1364	}
		1365
		1366	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1367	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1368	PPCODE:
875	{	1369	{
876	dREQ;	1370	dREQ;
877		1371
…		…
881	REQ_SEND;	1375	REQ_SEND;
882	}	1376	}
883		1377
884	void	1378	void
885	aio_group (SV *callback=&PL_sv_undef)	1379	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1380	PPCODE:
888	{	1381	{
889	dREQ;	1382	dREQ;
890		1383
891	req->type = EIO_GROUP;	1384	req->type = EIO_GROUP;
892		1385
893	eio_submit (req);	1386	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1387	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1388	}
896		1389
897	void	1390	void
898	aio_nop (SV *callback=&PL_sv_undef)	1391	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1392	ALIAS:
…		…
908	REQ_SEND;	1401	REQ_SEND;
909	}	1402	}
910		1403
911	int	1404	int
912	aioreq_pri (int pri = 0)	1405	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1406	CODE:
915	RETVAL = next_pri;	1407	RETVAL = next_pri;
916	if (items > 0)	1408	if (items > 0)
917	{	1409	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1410	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1422	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice;	1423	next_pri = nice;
932		1424
933	void	1425	void
934	flush ()	1426	flush ()
935	PROTOTYPE:
936	CODE:	1427	CODE:
937	while (eio_nreqs ())	1428	while (eio_nreqs ())
938	{	1429	{
939	poll_wait ();	1430	poll_wait ();
940	poll_cb ();	1431	poll_cb ();
941	}	1432	}
942		1433
943	int	1434	int
944	poll()	1435	poll ()
945	PROTOTYPE:
946	CODE:	1436	CODE:
947	poll_wait ();	1437	poll_wait ();
948	RETVAL = poll_cb ();	1438	RETVAL = poll_cb ();
949	OUTPUT:	1439	OUTPUT:
950	RETVAL	1440	RETVAL
951		1441
952	int	1442	int
953	poll_fileno()	1443	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1444	CODE:
956	RETVAL = respipe [0];	1445	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1446	OUTPUT:
958	RETVAL	1447	RETVAL
959		1448
960	int	1449	int
961	poll_cb(...)	1450	poll_cb (...)
962	PROTOTYPE:	1451	PROTOTYPE:
963	CODE:	1452	CODE:
964	RETVAL = poll_cb ();	1453	RETVAL = poll_cb ();
965	OUTPUT:	1454	OUTPUT:
966	RETVAL	1455	RETVAL
967		1456
968	void	1457	void
969	poll_wait()	1458	poll_wait ()
970	PROTOTYPE:
971	CODE:	1459	CODE:
972	poll_wait ();	1460	poll_wait ();
973		1461
974	int	1462	int
975	nreqs()	1463	nreqs ()
976	PROTOTYPE:
977	CODE:	1464	CODE:
978	RETVAL = eio_nreqs ();	1465	RETVAL = eio_nreqs ();
979	OUTPUT:	1466	OUTPUT:
980	RETVAL	1467	RETVAL
981		1468
982	int	1469	int
983	nready()	1470	nready ()
984	PROTOTYPE:
985	CODE:	1471	CODE:
986	RETVAL = eio_nready ();	1472	RETVAL = eio_nready ();
987	OUTPUT:	1473	OUTPUT:
988	RETVAL	1474	RETVAL
989		1475
990	int	1476	int
991	npending()	1477	npending ()
992	PROTOTYPE:
993	CODE:	1478	CODE:
994	RETVAL = eio_npending ();	1479	RETVAL = eio_npending ();
995	OUTPUT:	1480	OUTPUT:
996	RETVAL	1481	RETVAL
997		1482
998	int	1483	int
999	nthreads()	1484	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1485	CODE:
1002	RETVAL = eio_nthreads ();	1486	RETVAL = eio_nthreads ();
1003	OUTPUT:	1487	OUTPUT:
1004	RETVAL	1488	RETVAL
1005		1489
		1490	int
		1491	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1492	CODE:
		1493	RETVAL = posix_fadvise (fh, offset, length, advice);
		1494	OUTPUT:
		1495	RETVAL
		1496
		1497	ssize_t
		1498	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1499	CODE:
		1500	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1501	OUTPUT:
		1502	RETVAL
		1503
		1504	void
		1505	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1506	PPCODE:
		1507	sv_unmagic (scalar, MMAP_MAGIC);
		1508	{
		1509	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1510	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1511	if (addr == (void *)-1)
		1512	XSRETURN_NO;
		1513
		1514	sv_force_normal (scalar);
		1515
		1516	/* we store the length in mg_obj, as namlen is I32 :/ */
		1517	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1518	->mg_obj = (SV *)length;
		1519
		1520	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1521
		1522	if (!(prot & PROT_WRITE))
		1523	SvREADONLY_on (scalar);
		1524
		1525	if (SvLEN (scalar))
		1526	Safefree (SvPVX (scalar));
		1527
		1528	SvPVX (scalar) = (char *)addr;
		1529	SvCUR_set (scalar, length);
		1530	SvLEN_set (scalar, 0);
		1531	SvPOK_only (scalar);
		1532
		1533	XSRETURN_YES;
		1534	}
		1535
		1536	void
		1537	munmap (SV *scalar)
		1538	CODE:
		1539	sv_unmagic (scalar, MMAP_MAGIC);
		1540
		1541	int
		1542	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1543	ALIAS:
		1544	mprotect = 1
		1545	CODE:
		1546	{
		1547	STRLEN svlen;
		1548	void *addr = SvPVbyte (scalar, svlen);
		1549	size_t len = SvUV (length);
		1550
		1551	if (offset < 0)
		1552	offset += svlen;
		1553
		1554	if (offset < 0 || offset > svlen)
		1555	croak ("offset outside of scalar");
		1556
		1557	if (!SvOK (length) || len + offset > svlen)
		1558	len = svlen - offset;
		1559
		1560	addr = (void *)(((intptr_t)addr) + offset);
		1561	eio_page_align (&addr, &len);
		1562
		1563	switch (ix)
		1564	{
		1565	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1566	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1567	}
		1568	}
		1569	OUTPUT:
		1570	RETVAL
		1571
		1572	int
		1573	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1574	CODE:
		1575	{
		1576	STRLEN svlen;
		1577	void *addr = SvPVbyte (scalar, svlen);
		1578	size_t len = SvUV (length);
		1579
		1580	if (offset < 0)
		1581	offset += svlen;
		1582
		1583	if (offset < 0 || offset > svlen)
		1584	croak ("offset outside of scalar");
		1585
		1586	if (!SvOK (length) || len + offset > svlen)
		1587	len = svlen - offset;
		1588
		1589	addr = (void *)(((intptr_t)addr) + offset);
		1590	eio_page_align (&addr, &len);
		1591	#if _POSIX_MEMLOCK_RANGE
		1592	RETVAL = munlock (addr, len);
		1593	#else
		1594	RETVAL = ((errno = ENOSYS), -1);
		1595	#endif
		1596	}
		1597	OUTPUT:
		1598	RETVAL
		1599
		1600	int
		1601	munlockall ()
		1602	CODE:
		1603	#if _POSIX_MEMLOCK
		1604	munlockall ();
		1605	#else
		1606	RETVAL = -1;
		1607	errno = ENOSYS;
		1608	#endif
		1609	OUTPUT:
		1610	RETVAL
		1611
1006	void _on_next_submit (SV *cb)	1612	void _on_next_submit (SV *cb)
1007	CODE:	1613	CODE:
1008	SvREFCNT_dec (on_next_submit);	1614	SvREFCNT_dec (on_next_submit);
1009	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1615	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010		1616
…		…
1017	CODE:	1623	CODE:
1018	eio_cancel (req);	1624	eio_cancel (req);
1019		1625
1020	void	1626	void
1021	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1627	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1022	CODE:	1628	PPCODE:
		1629	{
		1630	if (GIMME_V != G_VOID)
		1631	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1632
		1633	if (items > 1)
		1634	{
		1635	SV *cb_cv =get_cb (callback);
		1636
1023	SvREFCNT_dec (req->callback);	1637	SvREFCNT_dec (req->callback);
1024	req->callback = newSVsv (callback);	1638	req->callback = SvREFCNT_inc (cb_cv);
		1639	}
		1640	}
1025		1641
1026	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1642	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027		1643
1028	void	1644	void
1029	add (aio_req grp, ...)	1645	add (aio_req grp, ...)
…		…
1061	AV *av;	1677	AV *av;
1062		1678
1063	grp->errorno = errno;	1679	grp->errorno = errno;
1064		1680
1065	av = newAV ();	1681	av = newAV ();
		1682	av_extend (av, items - 1);
1066		1683
1067	for (i = 1; i < items; ++i )	1684	for (i = 1; i < items; ++i )
1068	av_push (av, newSVsv (ST (i)));	1685	av_push (av, newSVsv (ST (i)));
1069		1686
1070	SvREFCNT_dec (grp->sv1);	1687	SvREFCNT_dec (grp->sv1);
…		…
1084	void	1701	void
1085	feed (aio_req grp, SV *callback=&PL_sv_undef)	1702	feed (aio_req grp, SV *callback=&PL_sv_undef)
1086	CODE:	1703	CODE:
1087	{	1704	{
1088	SvREFCNT_dec (grp->sv2);	1705	SvREFCNT_dec (grp->sv2);
1089	grp->sv2 = newSVsv (callback);	1706	grp->sv2 = newSVsv (callback);
		1707	grp->feed = aio_grp_feed;
1090		1708
1091	if (grp->int2 <= 0)	1709	if (grp->int2 <= 0)
1092	grp->int2 = 2;	1710	grp->int2 = 2;
1093		1711
1094	eio_grp_limit (grp, grp->int2);	1712	eio_grp_limit (grp, grp->int2);

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