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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 1.236 by root, Thu Jun 25 17:40:24 2015 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>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. on't complain if this fails for you.
		27	*/
		28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		29	# include <linux/fs.h>
		30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
		32	# include <linux/fiemap.h>
		33	# define HAVE_FIEMAP 1
		34	# endif
		35	#endif
		36
18	/* perl namespace pollution */	37	/* perl namespace pollution */
19	#undef VERSION	38	#undef VERSION
20		39
		40	/* perl stupidly overrides readdir and maybe others */
		41	/* with thread-unsafe versions, imagine that :( */
		42	#undef readdir
		43	#undef opendir
		44	#undef closedir
		45
21	#ifdef _WIN32	46	#ifdef _WIN32
22		47
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions	48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
28	# undef open	52	#undef open
29	# undef read	53	#undef read
30	# undef write	54	#undef write
31	# undef send	55	#undef send
32	# undef recv	56	#undef recv
33	# undef stat	57	#undef stat
		58	#undef lstat
34	# undef fstat	59	#undef fstat
35	# define lstat stat
36	# undef truncate	60	#undef truncate
37	# undef ftruncate	61	#undef ftruncate
38	# undef open	62	#undef open
		63	#undef link
39	# undef close	64	#undef close
40	# undef unlink	65	#undef unlink
		66	#undef mkdir
41	# undef rmdir	67	#undef rmdir
42	# undef rename	68	#undef rename
43	# undef lseek	69	#undef lseek
		70	#undef opendir
		71	#undef readdir
		72	#undef closedir
		73	#undef chmod
		74	#undef fchmod
		75	#undef dup
		76	#undef dup2
		77	#undef abort
		78	#undef pipe
44		79
45	# define chown(a,b,c) (errno = ENOSYS, -1)	80	#define EIO_STRUCT_STAT struct _stati64
46	# define fchown(a,b,c) (errno = ENOSYS, -1)	81	#define EIO_STRUCT_STATI64
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58		82
59	#else	83	#else
60		84
61	# include <sys/time.h>	85	#include <sys/time.h>
62	# include <sys/select.h>	86	#include <sys/select.h>
63	# include <unistd.h>	87	#include <unistd.h>
64	# include <utime.h>	88	#include <utime.h>
65	# include <signal.h>	89	#include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67		90
68	#endif
69
70	#define EIO_STRUCT_STAT Stat_t	91	#define EIO_STRUCT_STAT Stat_t
71		92
72	/* use NV for 32 bit perls as it allows larger offsets */	93	#endif
73	#if IVSIZE >= 8	94
74	# define SvVAL64 SvIV	95	/*****************************************************************************/
		96
		97	#if __GNUC__ >= 3
		98	# define expect(expr,value) __builtin_expect ((expr),(value))
75	#else	99	#else
76	# define SvVAL64 SvNV	100	# define expect(expr,value) (expr)
77	#endif	101	#endif
78		102
79	static HV *stash;	103	#define expect_false(expr) expect ((expr) != 0, 0)
		104	#define expect_true(expr) expect ((expr) != 0, 1)
		105
		106	/*****************************************************************************/
		107
80	typedef SV SV8; /* byte-sv, used for argument-checking */	108	typedef SV SV8; /* byte-sv, used for argument-checking */
		109	typedef int aio_rfd; /* read file desriptor */
		110	typedef int aio_wfd; /* write file descriptor */
81		111
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		113
85	#define EIO_REQ_MEMBERS \	114	#define EIO_REQ_MEMBERS \
86	SV *callback; \	115	SV *callback; \
87	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
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"
94		125
95	static int req_invoke (eio_req *req);	126	static int req_invoke (eio_req *req);
96	#define EIO_FINISH(req) req_invoke (req)	127	#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);	128	static void req_destroy (eio_req *grp);
100	#define EIO_DESTROY(req) req_destroy (req)	129	#define EIO_DESTROY(req) req_destroy (req)
		130
		131	#include "libeio/eio.c"
		132
		133	#if !HAVE_POSIX_FADVISE
		134	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#if !HAVE_POSIX_MADVISE
		138	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		139	#endif
		140
		141	#ifndef MAP_ANONYMOUS
		142	# ifdef MAP_ANON
		143	# define MAP_ANONYMOUS MAP_ANON
		144	# else
		145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		146	# endif
		147	#endif
		148
		149	/* defines all sorts of constants to 0 unless they are already defined */
		150	/* also provides const_iv_ and const_niv_ macros for them */
		151	#include "def0.h"
		152
		153	#ifndef makedev
		154	# define makedev(maj,min) (((maj) << 8) | (min))
		155	#endif
		156	#ifndef major
		157	# define major(dev) ((dev) >> 8)
		158	#endif
		159	#ifndef minor
		160	# define minor(dev) ((dev) & 0xff)
		161	#endif
		162
		163	#if PAGESIZE <= 0
		164	# define PAGESIZE sysconf (_SC_PAGESIZE)
		165	#endif
		166
		167	/*****************************************************************************/
		168
		169	static void
		170	fiemap (eio_req *req)
		171	{
		172	req->result = -1;
		173
		174	#if HAVE_FIEMAP
		175	/* assume some c99 */
		176	struct fiemap *fiemap = 0;
		177	size_t end_offset;
		178	int count = req->int3;
		179
		180	req->flags |= EIO_FLAG_PTR1_FREE;
		181
		182	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		183	/* increase in 3.5kb steps */
		184	if (count < 0)
		185	count = 8;
		186
		187	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		188	errno = ENOMEM;
		189	if (!fiemap)
		190	return;
		191
		192	req->ptr1 = fiemap;
		193
		194	fiemap->fm_start = req->offs;
		195	fiemap->fm_length = req->size;
		196	fiemap->fm_flags = req->int2;
		197	fiemap->fm_extent_count = count;
		198
		199	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		200	return;
		201
		202	if (req->int3 >= 0 /* not autosizing */
		203	|| !fiemap->fm_mapped_extents /* no more extents */
		204	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		205	goto done;
		206
		207	/* else we have to loop -
		208	* it would be tempting (actually I tried that first) to just query the
		209	* number of extents needed, but linux often feels like not returning all
		210	* extents, without telling us it left any out. this complicates
		211	* this quite a bit.
		212	*/
		213
		214	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		215
		216	for (;;)
		217	{
		218	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		219	char scratch[3072];
		220	struct fiemap *incmap = (struct fiemap *)scratch;
		221
		222	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		223	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		224	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		225	incmap->fm_flags = fiemap->fm_flags;
		226	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		227
		228	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		229	return;
		230
		231	if (!incmap->fm_mapped_extents)
		232	goto done;
		233
		234	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		235	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		236	errno = ENOMEM;
		237	if (!fiemap)
		238	return;
		239
		240	req->ptr1 = fiemap;
		241
		242	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		243	{
		244	struct fiemap_extent *e = incmap->fm_extents + count;
		245
		246	if (e->fe_logical + e->fe_length >= end_offset)
		247	goto done;
		248
		249	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		250
		251	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		252	goto done;
		253
		254	}
		255	}
		256
		257	done:
		258	req->result = 0;
		259
		260	#else
		261	errno = ENOSYS;
		262	#endif
		263	}
		264
		265	/*****************************************************************************/
101		266
102	enum {	267	enum {
103	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	268	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
104	};	269	};
105		270
106	#include "libeio/eio.c"
107
108	typedef eio_req *aio_req;	271	typedef eio_req *aio_req;
109	typedef eio_req *aio_req_ornot;	272	typedef eio_req *aio_req_ornot;
		273	typedef eio_wd aio_wd;
110		274
111	static SV *on_next_submit;	275	static SV *on_next_submit;
112	static int next_pri = EIO_PRI_DEFAULT;	276	static int next_pri = EIO_PRI_DEFAULT;
113	static int max_outstanding;	277	static int max_outstanding;
114		278
115	static int respipe_osf [2], respipe [2] = { -1, -1 };	279	static s_epipe respipe;
116		280
117	static void req_destroy (aio_req req);	281	static void req_destroy (aio_req req);
118	static void req_cancel (aio_req req);	282	static void req_cancel (aio_req req);
119		283
120	static void want_poll (void)	284	static void
		285	want_poll (void)
121	{	286	{
122	/* write a dummy byte to the pipe so fh becomes ready */	287	/* write a dummy byte to the pipe so fh becomes ready */
123	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	288	s_epipe_signal (&respipe);
124	}	289	}
125		290
126	static void done_poll (void)	291	static void
		292	done_poll (void)
127	{	293	{
128	/* read any signals sent by the worker threads */	294	/* read any signals sent by the worker threads */
129	char buf [4];	295	s_epipe_drain (&respipe);
130	while (respipe_read (respipe [0], buf, 4) == 4)
131	;
132	}	296	}
133		297
134	/* must be called at most once */	298	/* must be called at most once */
135	static SV *req_sv (aio_req req, const char *klass)	299	static SV *
		300	req_sv (aio_req req, HV *stash)
136	{	301	{
137	if (!req->self)	302	if (!req->self)
138	{	303	{
139	req->self = (SV *)newHV ();	304	req->self = (SV *)newHV ();
140	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	305	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
141	}	306	}
142		307
143	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	308	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
144	}	309	}
145		310
146	static aio_req SvAIO_REQ (SV *sv)	311	static SV *
		312	newSVaio_wd (aio_wd wd)
		313	{
		314	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		315	}
		316
		317	static aio_req
		318	SvAIO_REQ (SV *sv)
147	{	319	{
148	MAGIC *mg;	320	MAGIC *mg;
149		321
150	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	322	if (!SvROK (sv)
		323	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		324	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		325	&& SvSTASH (SvRV (sv)) != aio_req_stash
		326	&& !sv_derived_from (sv, "IO::AIO::REQ")))
151	croak ("object of class " AIO_REQ_KLASS " expected");	327	croak ("object of class IO::AIO::REQ expected");
152		328
153	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	329	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
154		330
155	return mg ? (aio_req)mg->mg_ptr : 0;	331	return mg ? (aio_req)mg->mg_ptr : 0;
156	}	332	}
157		333
		334	static aio_wd
		335	SvAIO_WD (SV *sv)
		336	{
		337	if (!SvROK (sv)
		338	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		339	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		340	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		341
		342	return (aio_wd)(long)SvIVX (SvRV (sv));
		343	}
		344
		345	static SV *
		346	newmortalFH (int fd, int flags)
		347	{
		348	if (fd < 0)
		349	return &PL_sv_undef;
		350
		351	GV *gv = (GV *)sv_newmortal ();
		352	char sym[64];
		353	int symlen;
		354
		355	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		356	gv_init (gv, aio_stash, sym, symlen, 0);
		357
		358	symlen = snprintf (
		359	sym,
		360	sizeof (sym),
		361	"%s&=%d",
		362	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		363	fd
		364	);
		365
		366	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		367	? (SV *)gv : &PL_sv_undef;
		368	}
		369
		370	static void
158	static void aio_grp_feed (aio_req grp)	371	aio_grp_feed (aio_req grp)
159	{	372	{
160	if (grp->sv2 && SvOK (grp->sv2))	373	if (grp->sv2 && SvOK (grp->sv2))
161	{	374	{
162	dSP;	375	dSP;
163		376
164	ENTER;	377	ENTER;
165	SAVETMPS;	378	SAVETMPS;
166	PUSHMARK (SP);	379	PUSHMARK (SP);
167	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	380	XPUSHs (req_sv (grp, aio_grp_stash));
168	PUTBACK;	381	PUTBACK;
169	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	382	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
170	SPAGAIN;	383	SPAGAIN;
171	FREETMPS;	384	FREETMPS;
172	LEAVE;	385	LEAVE;
173	}	386	}
174	}	387	}
175		388
		389	static void
176	static void req_submit (eio_req *req)	390	req_submit (eio_req *req)
177	{	391	{
178	eio_submit (req);	392	eio_submit (req);
179		393
180	if (on_next_submit)	394	if (expect_false (on_next_submit))
181	{	395	{
182	dSP;	396	dSP;
183	SV *cb = sv_2mortal (on_next_submit);	397	SV *cb = sv_2mortal (on_next_submit);
184		398
185	on_next_submit = 0;	399	on_next_submit = 0;
…		…
188	PUTBACK;	402	PUTBACK;
189	call_sv (cb, G_DISCARD | G_EVAL);	403	call_sv (cb, G_DISCARD | G_EVAL);
190	}	404	}
191	}	405	}
192		406
		407	static int
193	static int req_invoke (eio_req *req)	408	req_invoke (eio_req *req)
194	{	409	{
195	dSP;
196
197	if (req->flags & FLAG_SV2_RO_OFF)	410	if (req->flags & FLAG_SV2_RO_OFF)
198	SvREADONLY_off (req->sv2);	411	SvREADONLY_off (req->sv2);
199		412
200	if (!EIO_CANCELLED (req) && SvOK (req->callback))	413	if (!EIO_CANCELLED (req) && req->callback)
201	{	414	{
		415	dSP;
		416	static SV *sv_result_cache; /* caches the result integer SV */
		417	SV *sv_result;
		418
202	ENTER;	419	ENTER;
203	SAVETMPS;	420	SAVETMPS;
204	PUSHMARK (SP);	421	PUSHMARK (SP);
205	EXTEND (SP, 1);	422	EXTEND (SP, 1);
206		423
		424	/* do not recreate the result IV from scratch each time */
		425	if (expect_true (sv_result_cache))
		426	{
		427	sv_result = sv_result_cache; sv_result_cache = 0;
		428	SvIV_set (sv_result, req->result);
		429	SvIOK_only (sv_result);
		430	}
		431	else
		432	{
		433	sv_result = newSViv (req->result);
		434	SvREADONLY_on (sv_result);
		435	}
		436
207	switch (req->type)	437	switch (req->type)
208	{	438	{
		439	case EIO_WD_OPEN:
		440	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		441	break;
		442
209	case EIO_READDIR:	443	case EIO_READDIR:
210	{	444	{
211	SV *rv = &PL_sv_undef;	445	SV *rv = &PL_sv_undef;
212		446
213	if (req->result >= 0)	447	if (req->result >= 0)
214	{	448	{
215	int i;	449	int i;
216	char *buf = req->ptr2;	450	char *names = (char *)req->ptr2;
		451	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
217	AV *av = newAV ();	452	AV *av = newAV ();
218		453
219	av_extend (av, req->result - 1);	454	av_extend (av, req->result - 1);
220		455
221	for (i = 0; i < req->result; ++i)	456	for (i = 0; i < req->result; ++i)
222	{	457	{
223	SV *sv = newSVpv (buf, 0);	458	if (req->int1 & EIO_READDIR_DENTS)
		459	{
		460	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
224		461
		462	if (req->int1 & EIO_READDIR_CUSTOM2)
		463	{
		464	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		465	AV *avent = newAV ();
		466
		467	av_extend (avent, 2);
		468
		469	if (!sv_type [ent->type])
		470	{
		471	sv_type [ent->type] = newSViv (ent->type);
		472	SvREADONLY_on (sv_type [ent->type]);
		473	}
		474
		475	av_store (avent, 0, namesv);
		476	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		477	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		478
		479	av_store (av, i, newRV_noinc ((SV *)avent));
		480	}
		481	else
225	av_store (av, i, sv);	482	av_store (av, i, namesv);
		483
		484	++ent;
		485	}
		486	else
		487	{
		488	SV *name = newSVpv (names, 0);
		489	av_store (av, i, name);
226	buf += SvCUR (sv) + 1;	490	names += SvCUR (name) + 1;
		491	}
227	}	492	}
228		493
229	rv = sv_2mortal (newRV_noinc ((SV *)av));	494	rv = sv_2mortal (newRV_noinc ((SV *)av));
230	}	495	}
231		496
232	PUSHs (rv);	497	PUSHs (rv);
		498
		499	if (req->int1 & EIO_READDIR_CUSTOM1)
		500	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
233	}	501	}
234	break;	502	break;
235		503
236	case EIO_OPEN:	504	case EIO_OPEN:
		505	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		506	break;
		507
		508	case EIO_STATVFS:
		509	case EIO_FSTATVFS:
237	{	510	{
238	/* convert fd to fh */
239	SV *fh = &PL_sv_undef;	511	SV *rv = &PL_sv_undef;
240		512
		513	#ifndef _WIN32
241	if (req->result >= 0)	514	if (req->result >= 0)
242	{	515	{
		516	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
243	GV *gv = (GV *)sv_newmortal ();	517	HV *hv = newHV ();
244	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
245	char sym [64];	519	* chooses to make it a struct.
246	int symlen;
247		520	*/
248	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	521	unsigned long fsid = 0;
249	gv_init (gv, stash, sym, symlen, 0);	522	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
250		523
251	symlen = snprintf (	524	rv = sv_2mortal (newRV_noinc ((SV *)hv));
252	sym,
253	sizeof (sym),
254	"%s&=%d",
255	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
256	req->result
257	);
258		525
259	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	526	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
260	fh = (SV *)gv;	527	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		528	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		529	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		530	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		531	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		532	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		533	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		534	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		535	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		536	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
261	}	537	}
		538	#endif
262		539
263	PUSHs (fh);	540	PUSHs (rv);
264	}	541	}
		542
265	break;	543	break;
266		544
267	case EIO_GROUP:	545	case EIO_GROUP:
268	req->int1 = 2; /* mark group as finished */	546	req->int1 = 2; /* mark group as finished */
269		547
…		…
281	case EIO_NOP:	559	case EIO_NOP:
282	case EIO_BUSY:	560	case EIO_BUSY:
283	break;	561	break;
284		562
285	case EIO_READLINK:	563	case EIO_READLINK:
		564	case EIO_REALPATH:
286	if (req->result > 0)	565	if (req->result > 0)
287	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	566	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
288	break;	567	break;
289		568
290	case EIO_STAT:	569	case EIO_STAT:
291	case EIO_LSTAT:	570	case EIO_LSTAT:
292	case EIO_FSTAT:	571	case EIO_FSTAT:
293	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	572	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		573
294	PL_laststatval = req->result;	574	if (!(PL_laststatval = req->result))
		575	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
295	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	576	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
296	PUSHs (sv_2mortal (newSViv (req->result)));	577
		578	PUSHs (sv_result);
297	break;	579	break;
298		580
		581	case EIO_SEEK:
		582	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		583	break;
		584
299	case EIO_READ:	585	case EIO_READ:
		586	{
300	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	587	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
301	*SvEND (req->sv2) = 0;	588	*SvEND (req->sv2) = 0;
302	PUSHs (sv_2mortal (newSViv (req->result)));	589	SvPOK_only (req->sv2);
		590	SvSETMAGIC (req->sv2);
		591	PUSHs (sv_result);
		592	}
303	break;	593	break;
304		594
305	case EIO_DUP2:	595	case EIO_CUSTOM:
		596	if (req->feed == fiemap)
		597	{
		598	#if HAVE_FIEMAP
		599	if (!req->result)
		600	{
		601	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		602
		603	if (fiemap->fm_extent_count)
		604	{
		605	AV *av = newAV ();
		606	int i;
		607
		608	while (fiemap->fm_mapped_extents)
		609	{
		610	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		611	AV *ext_av = newAV ();
		612
		613	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		614	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		615	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		616	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		617
		618	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		619	}
		620
		621	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		622	}
		623	else
		624	{
		625	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		626	PUSHs (sv_result);
		627	}
		628	}
		629	#endif
		630	}
		631	else
		632	PUSHs (sv_result);
		633	break;
		634
		635	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
306	if (req->result > 0)	636	if (req->result > 0)
307	req->result = 0;	637	SvIV_set (sv_result, 0);
308	/* FALLTHROUGH */	638	/* FALLTHROUGH */
309		639
310	default:	640	default:
311	PUSHs (sv_2mortal (newSViv (req->result)));	641	PUSHs (sv_result);
312	break;	642	break;
313	}	643	}
314		644
315	errno = req->errorno;	645	errno = req->errorno;
316		646
317	PUTBACK;	647	PUTBACK;
318	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	648	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
319	SPAGAIN;	649	SPAGAIN;
320		650
		651	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		652	SvREFCNT_dec (sv_result);
		653	else
		654	sv_result_cache = sv_result;
		655
321	FREETMPS;	656	FREETMPS;
322	LEAVE;	657	LEAVE;
323		658
324	PUTBACK;	659	PUTBACK;
325	}	660	}
326		661
327	return !!SvTRUE (ERRSV);	662	return !!SvTRUE (ERRSV);
328	}	663	}
329		664
		665	static void
330	static void req_destroy (aio_req req)	666	req_destroy (aio_req req)
331	{	667	{
332	if (req->self)	668	if (req->self)
333	{	669	{
334	sv_unmagic (req->self, PERL_MAGIC_ext);	670	sv_unmagic (req->self, PERL_MAGIC_ext);
335	SvREFCNT_dec (req->self);	671	SvREFCNT_dec (req->self);
336	}	672	}
337		673
338	SvREFCNT_dec (req->sv1);	674	SvREFCNT_dec (req->sv1);
339	SvREFCNT_dec (req->sv2);	675	SvREFCNT_dec (req->sv2);
		676	SvREFCNT_dec (req->sv3);
		677	SvREFCNT_dec (req->sv4);
340	SvREFCNT_dec (req->callback);	678	SvREFCNT_dec (req->callback);
341		679
342	Safefree (req);	680	free (req);
343	}	681	}
344		682
		683	static void
345	static void req_cancel_subs (aio_req grp)	684	req_cancel_subs (aio_req grp)
346	{	685	{
347	aio_req sub;
348
349	if (grp->type != EIO_GROUP)	686	if (grp->type != EIO_GROUP)
350	return;	687	return;
351		688
352	SvREFCNT_dec (grp->sv2);	689	SvREFCNT_dec (grp->sv2);
353	grp->sv2 = 0;	690	grp->sv2 = 0;
354		691
355	eio_grp_cancel (grp);	692	eio_grp_cancel (grp);
356	}	693	}
357		694
358	#ifdef USE_SOCKETS_AS_HANDLES	695	static void ecb_cold
359	# define TO_SOCKET(x) (win32_get_osfhandle (x))	696	create_respipe (void)
360	#else	697	{
361	# define TO_SOCKET(x) (x)	698	if (s_epipe_renew (&respipe))
362	#endif	699	croak ("IO::AIO: unable to initialize result pipe");
		700	}
363		701
364	static void	702	static void
365	create_respipe (void)	703	poll_wait (void)
366	{	704	{
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))
376	#endif
377	croak ("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	}
401
402	static void poll_wait (void)
403	{
404	fd_set rfd;
405
406	while (eio_nreqs ())	705	while (eio_nreqs ())
407	{	706	{
408	int size;	707	int size;
409		708
410	X_LOCK (reslock);	709	X_LOCK (reslock);
411	size = res_queue.size;	710	size = EIO_POOL->res_queue.size;
412	X_UNLOCK (reslock);	711	X_UNLOCK (reslock);
413		712
414	if (size)	713	if (size)
415	return;	714	return;
416		715
417	maybe_start_thread ();	716	etp_maybe_start_thread (EIO_POOL);
418		717
419	FD_ZERO (&rfd);	718	s_epipe_wait (&respipe);
420	FD_SET (respipe [0], &rfd);
421
422	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
423	}	719	}
424	}	720	}
425		721
426	static int poll_cb (void)	722	static int
		723	poll_cb (void)
427	{	724	{
428	int res;	725	for (;;)
429
430	do
431	{	726	{
432	res = eio_poll ();	727	int res = eio_poll ();
433		728
434	if (res > 0)	729	if (res > 0)
435	croak (0);	730	croak (0);
		731
		732	if (!max_outstanding || max_outstanding > eio_nreqs ())
		733	return res;
		734
		735	poll_wait ();
436	}	736	}
437	while (max_outstanding && max_outstanding <= eio_nreqs ());
438
439	return res;
440	}	737	}
441		738
442	static void atfork_child (void)	739	static void ecb_cold
		740	reinit (void)
443	{	741	{
444	create_respipe ();	742	create_respipe ();
		743
		744	if (eio_init (want_poll, done_poll) < 0)
		745	croak ("IO::AIO: unable to initialise eio library");
		746	}
		747
		748	/*****************************************************************************/
		749
		750	#if !_POSIX_MAPPED_FILES
		751	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		752	# define munmap(addr,length) EIO_ENOSYS ()
		753	#endif
		754
		755	#if !_POSIX_MEMORY_PROTECTION
		756	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		757	#endif
		758
		759	#define MMAP_MAGIC PERL_MAGIC_ext
		760
		761	static int ecb_cold
		762	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		763	{
		764	int old_errno = errno;
		765	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		766	errno = old_errno;
		767
		768	mg->mg_obj = 0; /* just in case */
		769
		770	SvREADONLY_off (sv);
		771
		772	if (SvPVX (sv) != mg->mg_ptr)
		773	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		774
		775	SvCUR_set (sv, 0);
		776	SvPVX (sv) = 0;
		777	SvOK_off (sv);
		778
		779	return 0;
		780	}
		781
		782	static MGVTBL mmap_vtbl = {
		783	0, 0, 0, 0, mmap_free
		784	};
		785
		786	/*****************************************************************************/
		787
		788	static SV *
		789	get_cb (SV *cb_sv)
		790	{
		791	SvGETMAGIC (cb_sv);
		792	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		793	}
		794
		795	static aio_req ecb_noinline
		796	dreq (SV *callback)
		797	{
		798	SV *cb_cv;
		799	aio_req req;
		800	int req_pri = next_pri;
		801	next_pri = EIO_PRI_DEFAULT;
		802
		803	cb_cv = get_cb (callback);
		804
		805	req = calloc (sizeof (*req), 1);
		806	if (!req)
		807	croak ("out of memory during eio_req allocation");
		808
		809	req->callback = SvREFCNT_inc (cb_cv);
		810	req->pri = req_pri;
		811
		812	return req;
445	}	813	}
446		814
447	#define dREQ \	815	#define dREQ \
448	aio_req req; \	816	aio_req req = dreq (callback); \
449	int req_pri = next_pri; \
450	next_pri = EIO_PRI_DEFAULT; \
451	\
452	if (SvOK (callback) && !SvROK (callback)) \
453	croak ("callback must be undef or of reference type"); \
454	\
455	Newz (0, req, 1, eio_req); \
456	if (!req) \
457	croak ("out of memory during eio_req allocation"); \
458	\
459	req->callback = newSVsv (callback); \
460	req->pri = req_pri
461		817
462	#define REQ_SEND \	818	#define REQ_SEND \
		819	PUTBACK; \
463	req_submit (req); \	820	req_submit (req); \
		821	SPAGAIN; \
464	\	822	\
465	if (GIMME_V != G_VOID) \	823	if (GIMME_V != G_VOID) \
466	XPUSHs (req_sv (req, AIO_REQ_KLASS));	824	XPUSHs (req_sv (req, aio_req_stash));
467		825
		826	ecb_inline void
		827	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		828	{
		829	if (expect_false (SvROK (path)))
		830	{
		831	SV *rv = SvRV (path);
		832	SV *wdob;
		833
		834	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		835	{
		836	path = AvARRAY (rv)[1];
		837	wdob = AvARRAY (rv)[0];
		838
		839	if (SvOK (wdob))
		840	{
		841	*wd = SvAIO_WD (wdob);
		842	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		843	}
		844	else
		845	*wd = EIO_INVALID_WD;
		846	}
		847	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		848	{
		849	*wd = (aio_wd)(long)SvIVX (rv);
		850	*wdsv = SvREFCNT_inc_NN (rv);
		851	*ptr = ".";
		852	return; /* path set to "." */
		853	}
		854	else
		855	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		856	}
		857
		858	*pathsv = newSVsv (path);
		859	*ptr = SvPVbyte_nolen (*pathsv);
		860	}
		861
		862	static void ecb_noinline
		863	req_set_path1 (aio_req req, SV *path)
		864	{
		865	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		866	}
		867
		868	static void ecb_noinline
		869	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		870	{
		871	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		872
		873	switch (SvTYPE (rv))
		874	{
		875	case SVt_PVIO:
		876	case SVt_PVLV:
		877	case SVt_PVGV:
		878	req->type = type_fh;
		879	req->sv1 = newSVsv (fh_or_path);
		880	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		881	break;
		882
		883	default:
		884	req->type = type_path;
		885	req_set_path1 (req, fh_or_path);
		886	break;
		887	}
		888	}
		889
		890	XS(boot_IO__AIO) ecb_cold;
		891
468	MODULE = IO::AIO PACKAGE = IO::AIO	892	MODULE = IO::AIO PACKAGE = IO::AIO
469		893
470	PROTOTYPES: ENABLE	894	PROTOTYPES: ENABLE
471		895
472	BOOT:	896	BOOT:
473	{	897	{
		898	static const struct {
		899	const char *name;
		900	IV iv;
		901	} *civ, const_iv[] = {
		902	# define const_niv(name, value) { # name, (IV) value },
		903	# define const_iv(name) { # name, (IV) name },
		904	# define const_eio(name) { # name, (IV) EIO_ ## name },
		905
		906	/* you have to re-run ./gendef0 after adding/removing any constants here */
		907	/* the first block can be undef if missing */
		908	const_iv (ENOSYS)
		909	const_iv (EXDEV)
		910	const_iv (EBADR)
		911
		912	/* for lseek */
		913	const_iv (SEEK_DATA)
		914	const_iv (SEEK_HOLE)
		915
		916	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		917	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		918	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		919	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		920	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		921	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		922
		923	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		924	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		925	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		926	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		927	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		928
		929	/* the second block will be 0 when missing */
		930	const_iv (O_RDONLY)
		931	const_iv (O_WRONLY)
		932	const_iv (O_RDWR)
		933	const_iv (O_CREAT)
		934	const_iv (O_TRUNC)
		935	const_iv (O_EXCL)
		936	const_iv (O_APPEND)
		937
		938	const_iv (O_ASYNC)
		939	const_iv (O_DIRECT)
		940	const_iv (O_NOATIME)
		941
		942	const_iv (O_CLOEXEC)
		943	const_iv (O_NOCTTY)
		944	const_iv (O_NOFOLLOW)
		945	const_iv (O_NONBLOCK)
		946	const_iv (O_EXEC)
		947	const_iv (O_SEARCH)
		948	const_iv (O_DIRECTORY)
		949	const_iv (O_DSYNC)
		950	const_iv (O_RSYNC)
		951	const_iv (O_SYNC)
		952	const_iv (O_PATH)
		953	const_iv (O_TMPFILE)
		954	const_iv (O_TTY_INIT)
		955
		956	const_iv (S_IFIFO)
		957	const_iv (S_IFCHR)
		958	const_iv (S_IFBLK)
		959	const_iv (S_IFLNK)
		960	const_iv (S_IFREG)
		961	const_iv (S_IFDIR)
		962	const_iv (S_IFWHT)
		963	const_iv (S_IFSOCK)
		964	const_iv (S_IFMT)
		965
		966	const_iv (ST_RDONLY)
		967	const_iv (ST_NOSUID)
		968	const_iv (ST_NODEV)
		969	const_iv (ST_NOEXEC)
		970	const_iv (ST_SYNCHRONOUS)
		971	const_iv (ST_MANDLOCK)
		972	const_iv (ST_WRITE)
		973	const_iv (ST_APPEND)
		974	const_iv (ST_IMMUTABLE)
		975	const_iv (ST_NOATIME)
		976	const_iv (ST_NODIRATIME)
		977	const_iv (ST_RELATIME)
		978
		979	const_iv (PROT_NONE)
		980	const_iv (PROT_EXEC)
		981	const_iv (PROT_READ)
		982	const_iv (PROT_WRITE)
		983
		984	const_iv (MAP_PRIVATE)
		985	const_iv (MAP_SHARED)
		986	const_iv (MAP_FIXED)
		987	const_iv (MAP_ANONYMOUS)
		988
		989	/* linuxish */
		990	const_iv (MAP_HUGETLB)
		991	const_iv (MAP_LOCKED)
		992	const_iv (MAP_NORESERVE)
		993	const_iv (MAP_POPULATE)
		994	const_iv (MAP_NONBLOCK)
		995	const_iv (MAP_GROWSDOWN)
		996	const_iv (MAP_32BIT)
		997	const_iv (MAP_HUGETLB)
		998	const_iv (MAP_STACK)
		999
		1000	const_iv (FIEMAP_FLAG_SYNC)
		1001	const_iv (FIEMAP_FLAG_XATTR)
		1002	const_iv (FIEMAP_FLAGS_COMPAT)
		1003	const_iv (FIEMAP_EXTENT_LAST)
		1004	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1005	const_iv (FIEMAP_EXTENT_DELALLOC)
		1006	const_iv (FIEMAP_EXTENT_ENCODED)
		1007	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1008	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1009	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1010	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1011	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1012	const_iv (FIEMAP_EXTENT_MERGED)
		1013	const_iv (FIEMAP_EXTENT_SHARED)
		1014
		1015	const_iv (SPLICE_F_MOVE)
		1016	const_iv (SPLICE_F_NONBLOCK)
		1017	const_iv (SPLICE_F_MORE)
		1018	const_iv (SPLICE_F_GIFT)
		1019
		1020	/* these are libeio constants, and are independent of gendef0 */
		1021	const_eio (SEEK_SET)
		1022	const_eio (SEEK_CUR)
		1023	const_eio (SEEK_END)
		1024
		1025	const_eio (MCL_FUTURE)
		1026	const_eio (MCL_CURRENT)
		1027
		1028	const_eio (MS_ASYNC)
		1029	const_eio (MS_INVALIDATE)
		1030	const_eio (MS_SYNC)
		1031
		1032	const_eio (MT_MODIFY)
		1033
		1034	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1035	const_eio (SYNC_FILE_RANGE_WRITE)
		1036	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1037
		1038	const_eio (FALLOC_FL_KEEP_SIZE)
		1039	const_eio (FALLOC_FL_PUNCH_HOLE)
		1040	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1041	const_eio (FALLOC_FL_ZERO_RANGE)
		1042
		1043	const_eio (READDIR_DENTS)
		1044	const_eio (READDIR_DIRS_FIRST)
		1045	const_eio (READDIR_STAT_ORDER)
		1046	const_eio (READDIR_FOUND_UNKNOWN)
		1047
		1048	const_eio (DT_UNKNOWN)
		1049	const_eio (DT_FIFO)
		1050	const_eio (DT_CHR)
		1051	const_eio (DT_DIR)
		1052	const_eio (DT_BLK)
		1053	const_eio (DT_REG)
		1054	const_eio (DT_LNK)
		1055	const_eio (DT_SOCK)
		1056	const_eio (DT_WHT)
		1057	};
		1058
474	stash = gv_stashpv ("IO::AIO", 1);	1059	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1060	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1061	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1062	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
475		1063
476	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1064	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
477	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1065	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].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		1066
485	create_respipe ();	1067	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
486		1068
487	if (eio_init (want_poll, done_poll) < 0)	1069	reinit ();
488	croak ("IO::AIO: unable to initialise eio library");
489
490	/* atfork child called in fifo order, so before eio's handler */
491	X_THREAD_ATFORK (0, 0, atfork_child);
492	}	1070	}
493		1071
494	void	1072	void
		1073	reinit ()
		1074	PROTOTYPE:
		1075
		1076	void
495	max_poll_reqs (int nreqs)	1077	max_poll_reqs (unsigned int nreqs)
496	PROTOTYPE: $	1078	PROTOTYPE: $
497	CODE:	1079	CODE:
498	eio_set_max_poll_reqs (nreqs);	1080	eio_set_max_poll_reqs (nreqs);
499		1081
500	void	1082	void
…		…
502	PROTOTYPE: $	1084	PROTOTYPE: $
503	CODE:	1085	CODE:
504	eio_set_max_poll_time (nseconds);	1086	eio_set_max_poll_time (nseconds);
505		1087
506	void	1088	void
507	min_parallel (int nthreads)	1089	min_parallel (unsigned int nthreads)
508	PROTOTYPE: $	1090	PROTOTYPE: $
509	CODE:	1091	CODE:
510	eio_set_min_parallel (nthreads);	1092	eio_set_min_parallel (nthreads);
511		1093
512	void	1094	void
513	max_parallel (int nthreads)	1095	max_parallel (unsigned int nthreads)
514	PROTOTYPE: $	1096	PROTOTYPE: $
515	CODE:	1097	CODE:
516	eio_set_max_parallel (nthreads);	1098	eio_set_max_parallel (nthreads);
517		1099
518	void	1100	void
519	max_idle (int nthreads)	1101	max_idle (unsigned int nthreads)
520	PROTOTYPE: $	1102	PROTOTYPE: $
521	CODE:	1103	CODE:
522	eio_set_max_idle (nthreads);	1104	eio_set_max_idle (nthreads);
523		1105
524	void	1106	void
		1107	idle_timeout (unsigned int seconds)
		1108	PROTOTYPE: $
		1109	CODE:
		1110	eio_set_idle_timeout (seconds);
		1111
		1112	void
525	max_outstanding (int maxreqs)	1113	max_outstanding (unsigned int maxreqs)
526	PROTOTYPE: $	1114	PROTOTYPE: $
527	CODE:	1115	CODE:
528	max_outstanding = maxreqs;	1116	max_outstanding = maxreqs;
529		1117
530	void	1118	void
531	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1119	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
532	PROTOTYPE: $$$;$
533	PPCODE:	1120	PPCODE:
534	{	1121	{
535	dREQ;	1122	dREQ;
536		1123
		1124	req->type = EIO_WD_OPEN;
		1125	req_set_path1 (req, pathname);
		1126
		1127	REQ_SEND;
		1128	}
		1129
		1130	void
		1131	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1132	PPCODE:
		1133	{
		1134	dREQ;
		1135
537	req->type = EIO_OPEN;	1136	req->type = EIO_OPEN;
538	req->sv1 = newSVsv (pathname);	1137	req_set_path1 (req, pathname);
539	req->ptr1 = SvPVbyte_nolen (req->sv1);
540	req->int1 = flags;	1138	req->int1 = flags;
541	req->int2 = mode;	1139	req->int2 = mode;
542		1140
543	REQ_SEND;	1141	REQ_SEND;
544	}	1142	}
545		1143
546	void	1144	void
547	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1145	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
548	PROTOTYPE: $;$
549	ALIAS:	1146	ALIAS:
550	aio_fsync = EIO_FSYNC	1147	aio_fsync = EIO_FSYNC
551	aio_fdatasync = EIO_FDATASYNC	1148	aio_fdatasync = EIO_FDATASYNC
		1149	aio_syncfs = EIO_SYNCFS
552	PPCODE:	1150	PPCODE:
553	{	1151	{
		1152	int fd = s_fileno_croak (fh, 0);
554	dREQ;	1153	dREQ;
555		1154
556	req->type = ix;	1155	req->type = ix;
557	req->sv1 = newSVsv (fh);	1156	req->sv1 = newSVsv (fh);
558	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1157	req->int1 = fd;
559		1158
560	REQ_SEND (req);	1159	REQ_SEND;
561	}	1160	}
562		1161
563	void	1162	void
564	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1163	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
565	PROTOTYPE: $;$
566	PPCODE:	1164	PPCODE:
567	{	1165	{
568	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1166	int fd = s_fileno_croak (fh, 0);
569	dREQ;	1167	dREQ;
570		1168
571	if (close_pipe < 0)	1169	req->type = EIO_SYNC_FILE_RANGE;
		1170	req->sv1 = newSVsv (fh);
		1171	req->int1 = fd;
		1172	req->offs = offset;
		1173	req->size = nbytes;
		1174	req->int2 = flags;
		1175
		1176	REQ_SEND;
		1177	}
		1178
		1179	void
		1180	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1181	PPCODE:
		1182	{
		1183	int fd = s_fileno_croak (fh, 0);
		1184	dREQ;
		1185
		1186	req->type = EIO_FALLOCATE;
		1187	req->sv1 = newSVsv (fh);
		1188	req->int1 = fd;
		1189	req->int2 = mode;
		1190	req->offs = offset;
		1191	req->size = len;
		1192
		1193	REQ_SEND;
		1194	}
		1195
		1196	void
		1197	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1198	PPCODE:
		1199	{
		1200	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1201	int fd = s_fileno_croak (fh, 0);
		1202	dREQ;
		1203
		1204	if (expect_false (close_fd < 0))
572	{	1205	{
573	int pipefd [2];	1206	int pipefd [2];
574		1207
		1208	if (
		1209	#ifdef _WIN32
		1210	_pipe (pipefd, 1, _O_BINARY) < 0
		1211	#else
575	if (pipe (pipefd) < 0	1212	pipe (pipefd) < 0
576	|| close (pipefd [1]) < 0
577	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1213	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1214	#endif
		1215	|| close (pipefd [1]) < 0
		1216	)
578	abort (); /*D*/	1217	abort (); /*D*/
579		1218
580	close_pipe = pipefd [0];	1219	close_fd = pipefd [0];
581	}	1220	}
582		1221
583	req->type = EIO_DUP2;	1222	req->type = EIO_DUP2;
584	req->int1 = close_pipe;	1223	req->int1 = close_fd;
585	req->sv2 = newSVsv (fh);	1224	req->sv2 = newSVsv (fh);
586	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1225	req->int2 = fd;
587		1226
588	REQ_SEND (req);	1227	REQ_SEND;
589	}	1228	}
590		1229
591	void	1230	void
		1231	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1232	PPCODE:
		1233	{
		1234	int fd = s_fileno_croak (fh, 0);
		1235	dREQ;
		1236
		1237	req->type = EIO_SEEK;
		1238	req->sv1 = newSVsv (fh);
		1239	req->int1 = fd;
		1240	req->offs = SvVAL64 (offset);
		1241	req->int2 = whence;
		1242
		1243	REQ_SEND;
		1244	}
		1245
		1246	void
592	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1247	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
593	ALIAS:	1248	ALIAS:
594	aio_read = EIO_READ	1249	aio_read = EIO_READ
595	aio_write = EIO_WRITE	1250	aio_write = EIO_WRITE
596	PROTOTYPE: $$$$$;$
597	PPCODE:	1251	PPCODE:
598	{	1252	{
599	STRLEN svlen;	1253	STRLEN svlen;
		1254	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600	char *svptr = SvPVbyte (data, svlen);	1255	char *svptr = SvPVbyte (data, svlen);
601	UV len = SvUV (length);	1256	UV len = SvUV (length);
602
603	SvUPGRADE (data, SVt_PV);
604	SvPOK_on (data);
605		1257
606	if (dataoffset < 0)	1258	if (dataoffset < 0)
607	dataoffset += svlen;	1259	dataoffset += svlen;
608		1260
609	if (dataoffset < 0 || dataoffset > svlen)	1261	if (dataoffset < 0 || dataoffset > svlen)
…		…
615	if (!SvOK (length) || len + dataoffset > svlen)	1267	if (!SvOK (length) || len + dataoffset > svlen)
616	len = svlen - dataoffset;	1268	len = svlen - dataoffset;
617	}	1269	}
618	else	1270	else
619	{	1271	{
620	/* read: grow scalar as necessary */	1272	/* read: check type and grow scalar as necessary */
		1273	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
621	svptr = SvGROW (data, len + dataoffset + 1);	1274	svptr = sv_grow (data, len + dataoffset + 1);
		1275	else if (SvCUR (data) < len + dataoffset)
		1276	croak ("length + dataoffset outside of scalar, and cannot grow");
622	}	1277	}
623
624	if (len < 0)
625	croak ("length must not be negative");
626		1278
627	{	1279	{
628	dREQ;	1280	dREQ;
629		1281
630	req->type = ix;	1282	req->type = ix;
631	req->sv1 = newSVsv (fh);	1283	req->sv1 = newSVsv (fh);
632	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1284	req->int1 = fd;
633	: IoOFP (sv_2io (fh)));
634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1285	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635	req->size = len;	1286	req->size = len;
636	req->sv2 = SvREFCNT_inc (data);	1287	req->sv2 = SvREFCNT_inc (data);
637	req->ptr2 = (char *)svptr + dataoffset;	1288	req->ptr2 = (char *)svptr + dataoffset;
638	req->stroffset = dataoffset;	1289	req->stroffset = dataoffset;
…		…
646	REQ_SEND;	1297	REQ_SEND;
647	}	1298	}
648	}	1299	}
649		1300
650	void	1301	void
651	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1302	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
652	PROTOTYPE: $$;$	1303	ALIAS:
		1304	aio_readlink = EIO_READLINK
		1305	aio_realpath = EIO_REALPATH
653	PPCODE:	1306	PPCODE:
654	{	1307	{
655	SV *data;
656	dREQ;	1308	dREQ;
657		1309
658	req->type = EIO_READLINK;	1310	req->type = ix;
659	req->sv1 = newSVsv (path);	1311	req_set_path1 (req, pathname);
660	req->ptr1 = SvPVbyte_nolen (req->sv1);
661		1312
662	REQ_SEND;	1313	REQ_SEND;
663	}	1314	}
664		1315
665	void	1316	void
666	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1317	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
667	PROTOTYPE: $$$$;$
668	PPCODE:	1318	PPCODE:
669	{	1319	{
		1320	int ifd = s_fileno_croak (in_fh , 0);
		1321	int ofd = s_fileno_croak (out_fh, 1);
670	dREQ;	1322	dREQ;
671		1323
672	req->type = EIO_SENDFILE;	1324	req->type = EIO_SENDFILE;
673	req->sv1 = newSVsv (out_fh);	1325	req->sv1 = newSVsv (out_fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1326	req->int1 = ofd;
675	req->sv2 = newSVsv (in_fh);	1327	req->sv2 = newSVsv (in_fh);
676	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1328	req->int2 = ifd;
677	req->offs = SvVAL64 (in_offset);	1329	req->offs = in_offset;
678	req->size = length;	1330	req->size = length;
679		1331
680	REQ_SEND;	1332	REQ_SEND;
681	}	1333	}
682		1334
683	void	1335	void
684	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1336	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	1337	PPCODE:
687	{	1338	{
		1339	int fd = s_fileno_croak (fh, 0);
688	dREQ;	1340	dREQ;
689		1341
690	req->type = EIO_READAHEAD;	1342	req->type = EIO_READAHEAD;
691	req->sv1 = newSVsv (fh);	1343	req->sv1 = newSVsv (fh);
692	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1344	req->int1 = fd;
693	req->offs = SvVAL64 (offset);	1345	req->offs = offset;
694	req->size = length;	1346	req->size = length;
695		1347
696	REQ_SEND;	1348	REQ_SEND;
697	}	1349	}
698		1350
699	void	1351	void
700	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1352	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
701	ALIAS:	1353	ALIAS:
702	aio_stat = EIO_STAT	1354	aio_stat = EIO_STAT
703	aio_lstat = EIO_LSTAT	1355	aio_lstat = EIO_LSTAT
		1356	aio_statvfs = EIO_STATVFS
704	PPCODE:	1357	PPCODE:
705	{	1358	{
706	dREQ;	1359	dREQ;
707		1360
708	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
709
710	if (SvPOK (req->sv1))
711	{
712	req->type = ix;
713	req->ptr1 = SvPVbyte_nolen (req->sv1);
714	}
715	else
716	{
717	req->type = EIO_FSTAT;
718	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719	}
720		1362
721	REQ_SEND;	1363	REQ_SEND;
722	}	1364	}
723		1365
		1366	UV
		1367	major (UV dev)
		1368	ALIAS:
		1369	minor = 1
		1370	CODE:
		1371	RETVAL = ix ? major (dev) : minor (dev);
		1372	OUTPUT:
		1373	RETVAL
		1374
		1375	UV
		1376	makedev (UV maj, UV min)
		1377	CODE:
		1378	RETVAL = makedev (maj, min);
		1379	OUTPUT:
		1380	RETVAL
		1381
724	void	1382	void
725	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1383	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
726	PPCODE:	1384	PPCODE:
727	{	1385	{
728	dREQ;	1386	dREQ;
729		1387
730	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1388	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
731	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1389	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
732	req->sv1 = newSVsv (fh_or_path);	1390	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
733
734	if (SvPOK (req->sv1))
735	{
736	req->type = EIO_UTIME;
737	req->ptr1 = SvPVbyte_nolen (req->sv1);
738	}
739	else
740	{
741	req->type = EIO_FUTIME;
742	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
743	}
744		1391
745	REQ_SEND;	1392	REQ_SEND;
746	}	1393	}
747		1394
748	void	1395	void
749	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1396	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
750	PPCODE:	1397	PPCODE:
751	{	1398	{
752	dREQ;	1399	dREQ;
753		1400
754	req->sv1 = newSVsv (fh_or_path);
755	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1401	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
756		1402	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
757	if (SvPOK (req->sv1))
758	{
759	req->type = EIO_TRUNCATE;
760	req->ptr1 = SvPVbyte_nolen (req->sv1);
761	}
762	else
763	{
764	req->type = EIO_FTRUNCATE;
765	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
766	}
767		1403
768	REQ_SEND;	1404	REQ_SEND;
769	}	1405	}
770		1406
771	void	1407	void
772	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1408	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
773	ALIAS:
774	aio_chmod = EIO_CHMOD
775	aio_mkdir = EIO_MKDIR
776	PPCODE:	1409	PPCODE:
777	{	1410	{
778	dREQ;	1411	dREQ;
779		1412
780	req->int2 = mode;	1413	req->int2 = mode;
781	req->sv1 = newSVsv (fh_or_path);	1414	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
782
783	if (SvPOK (req->sv1))
784	{
785	req->type = ix;
786	req->ptr1 = SvPVbyte_nolen (req->sv1);
787	}
788	else
789	{
790	req->type = EIO_FCHMOD;
791	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
792	}
793		1415
794	REQ_SEND;	1416	REQ_SEND;
795	}	1417	}
796		1418
797	void	1419	void
798	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1420	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
799	PPCODE:	1421	PPCODE:
800	{	1422	{
801	dREQ;	1423	dREQ;
802		1424
803	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1425	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1426	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805	req->sv1 = newSVsv (fh_or_path);	1427	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
806
807	if (SvPOK (req->sv1))
808	{
809	req->type = EIO_CHOWN;
810	req->ptr1 = SvPVbyte_nolen (req->sv1);
811	}
812	else
813	{
814	req->type = EIO_FCHOWN;
815	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
816	}
817		1428
818	REQ_SEND;	1429	REQ_SEND;
819	}	1430	}
820		1431
821	void	1432	void
		1433	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1434	PPCODE:
		1435	{
		1436	dREQ;
		1437
		1438	req->type = EIO_READDIR;
		1439	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1440
		1441	if (flags & EIO_READDIR_DENTS)
		1442	req->int1 |= EIO_READDIR_CUSTOM2;
		1443
		1444	req_set_path1 (req, pathname);
		1445
		1446	REQ_SEND;
		1447	}
		1448
		1449	void
		1450	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1451	PPCODE:
		1452	{
		1453	dREQ;
		1454
		1455	req->type = EIO_MKDIR;
		1456	req->int2 = mode;
		1457	req_set_path1 (req, pathname);
		1458
		1459	REQ_SEND;
		1460	}
		1461
		1462	void
822	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1463	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
823	ALIAS:	1464	ALIAS:
824	aio_unlink = EIO_UNLINK	1465	aio_unlink = EIO_UNLINK
825	aio_rmdir = EIO_RMDIR	1466	aio_rmdir = EIO_RMDIR
826	aio_readdir = EIO_READDIR	1467	aio_readdir = EIO_READDIR
827	PPCODE:	1468	PPCODE:
828	{	1469	{
829	dREQ;	1470	dREQ;
830		1471
831	req->type = ix;	1472	req->type = ix;
832	req->sv1 = newSVsv (pathname);	1473	req_set_path1 (req, pathname);
833	req->ptr1 = SvPVbyte_nolen (req->sv1);
834		1474
835	REQ_SEND;	1475	REQ_SEND;
836	}	1476	}
837		1477
838	void	1478	void
839	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1479	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
840	ALIAS:	1480	ALIAS:
841	aio_link = EIO_LINK	1481	aio_link = EIO_LINK
842	aio_symlink = EIO_SYMLINK	1482	aio_symlink = EIO_SYMLINK
843	aio_rename = EIO_RENAME	1483	aio_rename = EIO_RENAME
844	PPCODE:	1484	PPCODE:
845	{	1485	{
		1486	eio_wd wd2 = 0;
846	dREQ;	1487	dREQ;
847		1488
848	req->type = ix;	1489	req->type = ix;
849	req->sv1 = newSVsv (oldpath);	1490	req_set_path1 (req, oldpath);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);	1491	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
851	req->sv2 = newSVsv (newpath);	1492	req->int3 = (long)wd2;
852	req->ptr2 = SvPVbyte_nolen (req->sv2);
853		1493
854	REQ_SEND;	1494	REQ_SEND;
855	}	1495	}
856		1496
857	void	1497	void
858	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1498	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
859	PPCODE:	1499	PPCODE:
860	{	1500	{
861	dREQ;	1501	dREQ;
862		1502
863	req->type = EIO_MKNOD;	1503	req->type = EIO_MKNOD;
864	req->sv1 = newSVsv (pathname);
865	req->ptr1 = SvPVbyte_nolen (req->sv1);
866	req->int2 = (mode_t)mode;	1504	req->int2 = (mode_t)mode;
867	req->offs = dev;	1505	req->offs = dev;
		1506	req_set_path1 (req, pathname);
868		1507
869	REQ_SEND;	1508	REQ_SEND;
870	}	1509	}
871		1510
872	void	1511	void
		1512	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
		1513	ALIAS:
		1514	aio_mtouch = EIO_MTOUCH
		1515	aio_msync = EIO_MSYNC
		1516	PPCODE:
		1517	{
		1518	STRLEN svlen;
		1519	char *svptr = SvPVbyte (data, svlen);
		1520	UV len = SvUV (length);
		1521
		1522	if (offset < 0)
		1523	offset += svlen;
		1524
		1525	if (offset < 0 || offset > svlen)
		1526	croak ("offset outside of scalar");
		1527
		1528	if (!SvOK (length) || len + offset > svlen)
		1529	len = svlen - offset;
		1530
		1531	{
		1532	dREQ;
		1533
		1534	req->type = ix;
		1535	req->sv2 = SvREFCNT_inc (data);
		1536	req->ptr2 = (char *)svptr + offset;
		1537	req->size = len;
		1538	req->int1 = flags;
		1539
		1540	REQ_SEND;
		1541	}
		1542	}
		1543
		1544	void
		1545	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1546	PPCODE:
		1547	{
		1548	STRLEN svlen;
		1549	char *svptr = SvPVbyte (data, svlen);
		1550	UV len = SvUV (length);
		1551
		1552	if (offset < 0)
		1553	offset += svlen;
		1554
		1555	if (offset < 0 || offset > svlen)
		1556	croak ("offset outside of scalar");
		1557
		1558	if (!SvOK (length) || len + offset > svlen)
		1559	len = svlen - offset;
		1560
		1561	{
		1562	dREQ;
		1563
		1564	req->type = EIO_MLOCK;
		1565	req->sv2 = SvREFCNT_inc (data);
		1566	req->ptr2 = (char *)svptr + offset;
		1567	req->size = len;
		1568
		1569	REQ_SEND;
		1570	}
		1571	}
		1572
		1573	void
		1574	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1575	PPCODE:
		1576	{
		1577	dREQ;
		1578
		1579	req->type = EIO_MLOCKALL;
		1580	req->int1 = flags;
		1581
		1582	REQ_SEND;
		1583	}
		1584
		1585	void
		1586	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1587	PPCODE:
		1588	{
		1589	int fd = s_fileno_croak (fh, 0);
		1590	dREQ;
		1591
		1592	req->type = EIO_CUSTOM;
		1593	req->sv1 = newSVsv (fh);
		1594	req->int1 = fd;
		1595
		1596	req->feed = fiemap;
		1597	#if HAVE_FIEMAP
		1598	/* keep our fingers crossed that the next two types are 64 bit */
		1599	req->offs = start;
		1600	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1601	req->int2 = flags;
		1602	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1603	#endif
		1604
		1605	REQ_SEND;
		1606	}
		1607
		1608	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1609	aio_busy (double delay, SV *callback = &PL_sv_undef)
874	PPCODE:	1610	PPCODE:
875	{	1611	{
876	dREQ;	1612	dREQ;
877		1613
878	req->type = EIO_BUSY;	1614	req->type = EIO_BUSY;
…		…
880		1616
881	REQ_SEND;	1617	REQ_SEND;
882	}	1618	}
883		1619
884	void	1620	void
885	aio_group (SV *callback=&PL_sv_undef)	1621	aio_group (SV *callback = &PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1622	PPCODE:
888	{	1623	{
889	dREQ;	1624	dREQ;
890		1625
891	req->type = EIO_GROUP;	1626	req->type = EIO_GROUP;
892		1627
		1628	PUTBACK;
893	eio_submit (req);	1629	req_submit (req);
		1630	SPAGAIN;
		1631
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1632	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1633	}
896		1634
897	void	1635	void
898	aio_nop (SV *callback=&PL_sv_undef)	1636	aio_nop (SV *callback = &PL_sv_undef)
899	ALIAS:	1637	ALIAS:
900	aio_nop = EIO_NOP	1638	aio_nop = EIO_NOP
901	aio_sync = EIO_SYNC	1639	aio_sync = EIO_SYNC
902	PPCODE:	1640	PPCODE:
903	{	1641	{
…		…
907		1645
908	REQ_SEND;	1646	REQ_SEND;
909	}	1647	}
910		1648
911	int	1649	int
912	aioreq_pri (int pri = 0)	1650	aioreq_pri (int pri = NO_INIT)
913	PROTOTYPE: ;$
914	CODE:	1651	CODE:
915	RETVAL = next_pri;	1652	RETVAL = next_pri;
916	if (items > 0)	1653	if (items > 0)
917	{	1654	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1655	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1667	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice;	1668	next_pri = nice;
932		1669
933	void	1670	void
934	flush ()	1671	flush ()
935	PROTOTYPE:
936	CODE:	1672	CODE:
937	while (eio_nreqs ())	1673	while (eio_nreqs ())
938	{	1674	{
939	poll_wait ();	1675	poll_wait ();
940	poll_cb ();	1676	poll_cb ();
941	}	1677	}
942		1678
943	int	1679	int
944	poll()	1680	poll ()
945	PROTOTYPE:
946	CODE:	1681	CODE:
947	poll_wait ();	1682	poll_wait ();
948	RETVAL = poll_cb ();	1683	RETVAL = poll_cb ();
949	OUTPUT:	1684	OUTPUT:
950	RETVAL	1685	RETVAL
951		1686
952	int	1687	int
953	poll_fileno()	1688	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1689	CODE:
956	RETVAL = respipe [0];	1690	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1691	OUTPUT:
958	RETVAL	1692	RETVAL
959		1693
960	int	1694	int
961	poll_cb(...)	1695	poll_cb (...)
962	PROTOTYPE:	1696	PROTOTYPE:
963	CODE:	1697	CODE:
964	RETVAL = poll_cb ();	1698	RETVAL = poll_cb ();
965	OUTPUT:	1699	OUTPUT:
966	RETVAL	1700	RETVAL
967		1701
968	void	1702	void
969	poll_wait()	1703	poll_wait ()
970	PROTOTYPE:
971	CODE:	1704	CODE:
972	poll_wait ();	1705	poll_wait ();
973		1706
974	int	1707	int
975	nreqs()	1708	nreqs ()
976	PROTOTYPE:
977	CODE:	1709	CODE:
978	RETVAL = eio_nreqs ();	1710	RETVAL = eio_nreqs ();
979	OUTPUT:	1711	OUTPUT:
980	RETVAL	1712	RETVAL
981		1713
982	int	1714	int
983	nready()	1715	nready ()
984	PROTOTYPE:
985	CODE:	1716	CODE:
986	RETVAL = eio_nready ();	1717	RETVAL = eio_nready ();
987	OUTPUT:	1718	OUTPUT:
988	RETVAL	1719	RETVAL
989		1720
990	int	1721	int
991	npending()	1722	npending ()
992	PROTOTYPE:
993	CODE:	1723	CODE:
994	RETVAL = eio_npending ();	1724	RETVAL = eio_npending ();
995	OUTPUT:	1725	OUTPUT:
996	RETVAL	1726	RETVAL
997		1727
998	int	1728	int
999	nthreads()	1729	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1730	CODE:
1002	RETVAL = eio_nthreads ();	1731	RETVAL = eio_nthreads ();
1003	OUTPUT:	1732	OUTPUT:
1004	RETVAL	1733	RETVAL
1005		1734
		1735	int
		1736	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1737	CODE:
		1738	RETVAL = posix_fadvise (fh, offset, length, advice);
		1739	OUTPUT:
		1740	RETVAL
		1741
		1742	IV
		1743	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1744	CODE:
		1745	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1746	OUTPUT:
		1747	RETVAL
		1748
		1749	void
		1750	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1751	PPCODE:
		1752	sv_unmagic (scalar, MMAP_MAGIC);
		1753	{
		1754	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1755	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1756	if (addr == (void *)-1)
		1757	XSRETURN_NO;
		1758
		1759	sv_force_normal (scalar);
		1760
		1761	/* we store the length in mg_obj, as namlen is I32 :/ */
		1762	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1763	->mg_obj = (SV *)length;
		1764
		1765	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1766
		1767	if (!(prot & PROT_WRITE))
		1768	SvREADONLY_on (scalar);
		1769
		1770	if (SvLEN (scalar))
		1771	Safefree (SvPVX (scalar));
		1772
		1773	SvPVX (scalar) = (char *)addr;
		1774	SvCUR_set (scalar, length);
		1775	SvLEN_set (scalar, 0);
		1776	SvPOK_only (scalar);
		1777
		1778	XSRETURN_YES;
		1779	}
		1780
		1781	void
		1782	munmap (SV *scalar)
		1783	CODE:
		1784	sv_unmagic (scalar, MMAP_MAGIC);
		1785
		1786	int
		1787	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1788	ALIAS:
		1789	mprotect = 1
		1790	CODE:
		1791	{
		1792	STRLEN svlen;
		1793	void *addr = SvPVbyte (scalar, svlen);
		1794	STRLEN len = SvUV (length);
		1795
		1796	if (offset < 0)
		1797	offset += svlen;
		1798
		1799	if (offset < 0 || offset > svlen)
		1800	croak ("offset outside of scalar");
		1801
		1802	if (!SvOK (length) || len + offset > svlen)
		1803	len = svlen - offset;
		1804
		1805	addr = (void *)(((intptr_t)addr) + offset);
		1806	eio_page_align (&addr, &len);
		1807
		1808	switch (ix)
		1809	{
		1810	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1811	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1812	}
		1813	}
		1814	OUTPUT:
		1815	RETVAL
		1816
		1817	int
		1818	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1819	CODE:
		1820	{
		1821	STRLEN svlen;
		1822	void *addr = SvPVbyte (scalar, svlen);
		1823	size_t len = SvUV (length);
		1824
		1825	if (offset < 0)
		1826	offset += svlen;
		1827
		1828	if (offset < 0 || offset > svlen)
		1829	croak ("offset outside of scalar");
		1830
		1831	if (!SvOK (length) || len + offset > svlen)
		1832	len = svlen - offset;
		1833
		1834	addr = (void *)(((intptr_t)addr) + offset);
		1835	eio_page_align (&addr, &len);
		1836	#if _POSIX_MEMLOCK_RANGE
		1837	RETVAL = munlock (addr, len);
		1838	#else
		1839	RETVAL = EIO_ENOSYS ();
		1840	#endif
		1841	}
		1842	OUTPUT:
		1843	RETVAL
		1844
		1845	int
		1846	munlockall ()
		1847	CODE:
		1848	#if _POSIX_MEMLOCK
		1849	munlockall ();
		1850	#else
		1851	RETVAL = EIO_ENOSYS ();
		1852	#endif
		1853	OUTPUT:
		1854	RETVAL
		1855
		1856	int
		1857	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1858	CODE:
		1859	{
		1860	#if HAVE_LINUX_SPLICE
		1861	loff_t off_in_, off_out_;
		1862	RETVAL = splice (
		1863	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1864	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1865	length, flags
		1866	);
		1867	#else
		1868	RETVAL = EIO_ENOSYS ();
		1869	#endif
		1870	}
		1871	OUTPUT:
		1872	RETVAL
		1873
		1874	int
		1875	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1876	CODE:
		1877	#if HAVE_LINUX_SPLICE
		1878	RETVAL = tee (rfh, wfh, length, flags);
		1879	#else
		1880	RETVAL = EIO_ENOSYS ();
		1881	#endif
		1882	OUTPUT:
		1883	RETVAL
		1884
		1885	int
		1886	pipesize (aio_rfd rfh, int new_size = -1)
		1887	PROTOTYPE: $;$
		1888	CODE:
		1889	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1890	if (new_size >= 0)
		1891	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1892	else
		1893	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1894	#else
		1895	errno = ENOSYS;
		1896	RETVAL = -1;
		1897	#endif
		1898	OUTPUT:
		1899	RETVAL
		1900
		1901	void
		1902	pipe2 (int flags = 0)
		1903	PROTOTYPE: ;$
		1904	PPCODE:
		1905	{
		1906	int fd[2];
		1907	int res;
		1908
		1909	if (flags)
		1910	#if HAVE_PIPE2
		1911	res = pipe2 (fd, flags);
		1912	#else
		1913	res = (errno = ENOSYS, -1);
		1914	#endif
		1915	else
		1916	res = pipe (fd);
		1917
		1918	if (!res)
		1919	{
		1920	EXTEND (SP, 2);
		1921	PUSHs (newmortalFH (fd[0], O_RDONLY));
		1922	PUSHs (newmortalFH (fd[1], O_WRONLY));
		1923	}
		1924	}
		1925
1006	void _on_next_submit (SV *cb)	1926	void _on_next_submit (SV *cb)
1007	CODE:	1927	CODE:
1008	SvREFCNT_dec (on_next_submit);	1928	SvREFCNT_dec (on_next_submit);
1009	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1929	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010		1930
1011	PROTOTYPES: DISABLE	1931	PROTOTYPES: DISABLE
1012		1932
		1933	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1934
		1935	BOOT:
		1936	{
		1937	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1938	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1939	}
		1940
		1941	void
		1942	DESTROY (SV *self)
		1943	CODE:
		1944	{
		1945	aio_wd wd = SvAIO_WD (self);
		1946	#if HAVE_AT
		1947	{
		1948	SV *callback = &PL_sv_undef;
		1949	dREQ; /* clobbers next_pri :/ */
		1950	next_pri = req->pri; /* restore next_pri */
		1951	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1952	req->type = EIO_WD_CLOSE;
		1953	req->wd = wd;
		1954	REQ_SEND;
		1955	}
		1956	#else
		1957	eio_wd_close_sync (wd);
		1958	#endif
		1959	}
		1960
1013	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1961	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1014		1962
1015	void	1963	void
1016	cancel (aio_req_ornot req)	1964	cancel (aio_req_ornot req)
1017	CODE:	1965	CODE:
1018	eio_cancel (req);	1966	eio_cancel (req);
1019		1967
1020	void	1968	void
1021	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1969	cb (aio_req_ornot req, SV *callback = NO_INIT)
1022	CODE:	1970	PPCODE:
		1971	{
		1972	if (GIMME_V != G_VOID)
		1973	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1974
		1975	if (items > 1)
		1976	{
		1977	SV *cb_cv = get_cb (callback);
		1978
1023	SvREFCNT_dec (req->callback);	1979	SvREFCNT_dec (req->callback);
1024	req->callback = newSVsv (callback);	1980	req->callback = SvREFCNT_inc (cb_cv);
		1981	}
		1982	}
1025		1983
1026	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1984	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027		1985
1028	void	1986	void
1029	add (aio_req grp, ...)	1987	add (aio_req grp, ...)
…		…
1061	AV *av;	2019	AV *av;
1062		2020
1063	grp->errorno = errno;	2021	grp->errorno = errno;
1064		2022
1065	av = newAV ();	2023	av = newAV ();
		2024	av_extend (av, items - 1);
1066		2025
1067	for (i = 1; i < items; ++i )	2026	for (i = 1; i < items; ++i )
1068	av_push (av, newSVsv (ST (i)));	2027	av_push (av, newSVsv (ST (i)));
1069		2028
1070	SvREFCNT_dec (grp->sv1);	2029	SvREFCNT_dec (grp->sv1);
…		…
1080	limit (aio_req grp, int limit)	2039	limit (aio_req grp, int limit)
1081	CODE:	2040	CODE:
1082	eio_grp_limit (grp, limit);	2041	eio_grp_limit (grp, limit);
1083		2042
1084	void	2043	void
1085	feed (aio_req grp, SV *callback=&PL_sv_undef)	2044	feed (aio_req grp, SV *callback = &PL_sv_undef)
1086	CODE:	2045	CODE:
1087	{	2046	{
1088	SvREFCNT_dec (grp->sv2);	2047	SvREFCNT_dec (grp->sv2);
1089	grp->sv2 = newSVsv (callback);	2048	grp->sv2 = newSVsv (callback);
		2049	grp->feed = aio_grp_feed;
1090		2050
1091	if (grp->int2 <= 0)	2051	if (grp->int2 <= 0)
1092	grp->int2 = 2;	2052	grp->int2 = 2;
1093		2053
1094	eio_grp_limit (grp, grp->int2);	2054	eio_grp_limit (grp, grp->int2);

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