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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.130 by root, Thu Oct 2 11:35:03 2008 UTC vs.
Revision 1.238 by root, Thu Jan 21 23:04:46 2016 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
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
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
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		39
70	/* perl stupidly overrides readdir and maybe others */	40	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	41	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	42	#undef readdir
73	#undef opendir	43	#undef opendir
74	#undef closedir	44	#undef closedir
75		45
		46	#ifdef _WIN32
		47
		48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
		52	#undef open
		53	#undef read
		54	#undef write
		55	#undef send
		56	#undef recv
		57	#undef stat
		58	#undef lstat
		59	#undef fstat
		60	#undef truncate
		61	#undef ftruncate
		62	#undef open
		63	#undef link
		64	#undef close
		65	#undef unlink
		66	#undef mkdir
		67	#undef rmdir
		68	#undef rename
		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
		79
		80	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	81	#define EIO_STRUCT_STATI64
77		82
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	83	#else
82	# define SvVAL64 SvNV	84
		85	#include <sys/time.h>
		86	#include <sys/select.h>
		87	#include <unistd.h>
		88	#include <utime.h>
		89	#include <signal.h>
		90
		91	#define EIO_STRUCT_STAT Stat_t
		92
83	#endif	93	#endif
84		94
85	/*****************************************************************************/	95	/*****************************************************************************/
86		96
87	#if __GNUC__ >= 3	97	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	103	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	104	#define expect_true(expr) expect ((expr) != 0, 1)
95		105
96	/*****************************************************************************/	106	/*****************************************************************************/
97		107
98	static HV *stash;
99	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 */
100		111
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		113
104	#define EIO_REQ_MEMBERS \	114	#define EIO_REQ_MEMBERS \
105	SV *callback; \	115	SV *callback; \
106	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
107	STRLEN stroffset; \	118	STRLEN stroffset; \
108	SV *self;	119	SV *self;
109		120
110	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
111		122
		123	#include "libeio/config.h"
112	#include "libeio/eio.h"	124	#include "libeio/eio.h"
113		125
114	static int req_invoke (eio_req *req);	126	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	127	#define EIO_FINISH(req) req_invoke (req)
116	static void aio_grp_feed (eio_req *grp);
117	#define EIO_FEED(req) aio_grp_feed (req)
118	static void req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
119	#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	/*****************************************************************************/
120		266
121	enum {	267	enum {
122	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	268	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
123	};	269	};
124		270
125	#include "libeio/eio.c"
126
127	typedef eio_req *aio_req;	271	typedef eio_req *aio_req;
128	typedef eio_req *aio_req_ornot;	272	typedef eio_req *aio_req_ornot;
		273	typedef eio_wd aio_wd;
129		274
130	static SV *on_next_submit;	275	static SV *on_next_submit;
131	static int next_pri = EIO_PRI_DEFAULT;	276	static int next_pri = EIO_PRI_DEFAULT;
132	static int max_outstanding;	277	static int max_outstanding;
133		278
134	static int respipe_osf [2], respipe [2] = { -1, -1 };	279	static s_epipe respipe;
135		280
136	static void req_destroy (aio_req req);	281	static void req_destroy (aio_req req);
137	static void req_cancel (aio_req req);	282	static void req_cancel (aio_req req);
138		283
139	static void want_poll (void)	284	static void
		285	want_poll (void)
140	{	286	{
141	/* write a dummy byte to the pipe so fh becomes ready */	287	/* write a dummy byte to the pipe so fh becomes ready */
142	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	288	s_epipe_signal (&respipe);
143	}	289	}
144		290
145	static void done_poll (void)	291	static void
		292	done_poll (void)
146	{	293	{
147	/* read any signals sent by the worker threads */	294	/* read any signals sent by the worker threads */
148	char buf [4];	295	s_epipe_drain (&respipe);
149	while (respipe_read (respipe [0], buf, 4) == 4)
150	;
151	}	296	}
152		297
153	/* must be called at most once */	298	/* must be called at most once */
154	static SV *req_sv (aio_req req, const char *klass)	299	static SV *
		300	req_sv (aio_req req, HV *stash)
155	{	301	{
156	if (!req->self)	302	if (!req->self)
157	{	303	{
158	req->self = (SV *)newHV ();	304	req->self = (SV *)newHV ();
159	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	305	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
160	}	306	}
161		307
162	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	308	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
163	}	309	}
164		310
165	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)
166	{	319	{
167	MAGIC *mg;	320	MAGIC *mg;
168		321
169	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")))
170	croak ("object of class " AIO_REQ_KLASS " expected");	327	croak ("object of class IO::AIO::REQ expected");
171		328
172	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	329	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
173		330
174	return mg ? (aio_req)mg->mg_ptr : 0;	331	return mg ? (aio_req)mg->mg_ptr : 0;
175	}	332	}
176		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
177	static void aio_grp_feed (aio_req grp)	371	aio_grp_feed (aio_req grp)
178	{	372	{
179	if (grp->sv2 && SvOK (grp->sv2))	373	if (grp->sv2 && SvOK (grp->sv2))
180	{	374	{
181	dSP;	375	dSP;
182		376
183	ENTER;	377	ENTER;
184	SAVETMPS;	378	SAVETMPS;
185	PUSHMARK (SP);	379	PUSHMARK (SP);
186	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	380	XPUSHs (req_sv (grp, aio_grp_stash));
187	PUTBACK;	381	PUTBACK;
188	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	382	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
189	SPAGAIN;	383	SPAGAIN;
190	FREETMPS;	384	FREETMPS;
191	LEAVE;	385	LEAVE;
192	}	386	}
193	}	387	}
194		388
		389	static void
195	static void req_submit (eio_req *req)	390	req_submit (eio_req *req)
196	{	391	{
197	eio_submit (req);	392	eio_submit (req);
198		393
199	if (expect_false (on_next_submit))	394	if (expect_false (on_next_submit))
200	{	395	{
…		…
207	PUTBACK;	402	PUTBACK;
208	call_sv (cb, G_DISCARD | G_EVAL);	403	call_sv (cb, G_DISCARD | G_EVAL);
209	}	404	}
210	}	405	}
211		406
		407	static int
212	static int req_invoke (eio_req *req)	408	req_invoke (eio_req *req)
213	{	409	{
214	dSP;
215
216	if (req->flags & FLAG_SV2_RO_OFF)	410	if (req->flags & FLAG_SV2_RO_OFF)
217	SvREADONLY_off (req->sv2);	411	SvREADONLY_off (req->sv2);
218		412
219	if (!EIO_CANCELLED (req) && req->callback)	413	if (!EIO_CANCELLED (req) && req->callback)
220	{	414	{
		415	dSP;
		416	static SV *sv_result_cache; /* caches the result integer SV */
		417	SV *sv_result;
		418
221	ENTER;	419	ENTER;
222	SAVETMPS;	420	SAVETMPS;
223	PUSHMARK (SP);	421	PUSHMARK (SP);
224	EXTEND (SP, 1);	422	EXTEND (SP, 1);
225		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
226	switch (req->type)	437	switch (req->type)
227	{	438	{
		439	case EIO_WD_OPEN:
		440	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		441	break;
		442
228	case EIO_READDIR:	443	case EIO_READDIR:
229	{	444	{
230	SV *rv = &PL_sv_undef;	445	SV *rv = &PL_sv_undef;
231		446
232	if (req->result >= 0)	447	if (req->result >= 0)
233	{	448	{
234	int i;	449	int i;
235	char *buf = req->ptr2;	450	char *names = (char *)req->ptr2;
		451	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
236	AV *av = newAV ();	452	AV *av = newAV ();
237		453
238	av_extend (av, req->result - 1);	454	av_extend (av, req->result - 1);
239		455
240	for (i = 0; i < req->result; ++i)	456	for (i = 0; i < req->result; ++i)
241	{	457	{
242	SV *sv = newSVpv (buf, 0);	458	if (req->int1 & EIO_READDIR_DENTS)
		459	{
		460	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
243		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
244	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);
245	buf += SvCUR (sv) + 1;	490	names += SvCUR (name) + 1;
		491	}
246	}	492	}
247		493
248	rv = sv_2mortal (newRV_noinc ((SV *)av));	494	rv = sv_2mortal (newRV_noinc ((SV *)av));
249	}	495	}
250		496
251	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))));
252	}	501	}
253	break;	502	break;
254		503
255	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:
256	{	510	{
257	/* convert fd to fh */
258	SV *fh = &PL_sv_undef;	511	SV *rv = &PL_sv_undef;
259		512
		513	#ifndef _WIN32
260	if (req->result >= 0)	514	if (req->result >= 0)
261	{	515	{
		516	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
262	GV *gv = (GV *)sv_newmortal ();	517	HV *hv = newHV ();
263	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
264	char sym [64];	519	* chooses to make it a struct.
265	int symlen;
266		520	*/
267	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	521	unsigned long fsid = 0;
268	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));
269		523
270	symlen = snprintf (	524	rv = sv_2mortal (newRV_noinc ((SV *)hv));
271	sym,
272	sizeof (sym),
273	"%s&=%d",
274	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
275	req->result
276	);
277		525
278	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	526	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
279	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);
280	}	537	}
		538	#endif
281		539
282	PUSHs (fh);	540	PUSHs (rv);
283	}	541	}
		542
284	break;	543	break;
285		544
286	case EIO_GROUP:	545	case EIO_GROUP:
287	req->int1 = 2; /* mark group as finished */	546	req->int1 = 2; /* mark group as finished */
288		547
…		…
300	case EIO_NOP:	559	case EIO_NOP:
301	case EIO_BUSY:	560	case EIO_BUSY:
302	break;	561	break;
303		562
304	case EIO_READLINK:	563	case EIO_READLINK:
		564	case EIO_REALPATH:
305	if (req->result > 0)	565	if (req->result > 0)
306	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	566	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
307	break;	567	break;
308		568
309	case EIO_STAT:	569	case EIO_STAT:
310	case EIO_LSTAT:	570	case EIO_LSTAT:
311	case EIO_FSTAT:	571	case EIO_FSTAT:
312	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	572	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		573
313	PL_laststatval = req->result;	574	if (!(PL_laststatval = req->result))
		575	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
314	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	576	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
315	PUSHs (sv_2mortal (newSViv (req->result)));	577
		578	PUSHs (sv_result);
316	break;	579	break;
317		580
		581	case EIO_SEEK:
		582	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		583	break;
		584
318	case EIO_READ:	585	case EIO_READ:
		586	{
319	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));
320	*SvEND (req->sv2) = 0;	588	*SvEND (req->sv2) = 0;
321	PUSHs (sv_2mortal (newSViv (req->result)));	589	SvPOK_only (req->sv2);
		590	SvSETMAGIC (req->sv2);
		591	PUSHs (sv_result);
		592	}
322	break;	593	break;
323		594
324	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 */
325	if (req->result > 0)	636	if (req->result > 0)
326	req->result = 0;	637	SvIV_set (sv_result, 0);
327	/* FALLTHROUGH */	638	/* FALLTHROUGH */
328		639
329	default:	640	default:
330	PUSHs (sv_2mortal (newSViv (req->result)));	641	PUSHs (sv_result);
331	break;	642	break;
332	}	643	}
333		644
334	errno = req->errorno;	645	errno = req->errorno;
335		646
336	PUTBACK;	647	PUTBACK;
337	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	648	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
338	SPAGAIN;	649	SPAGAIN;
339		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
340	FREETMPS;	656	FREETMPS;
341	LEAVE;	657	LEAVE;
342		658
343	PUTBACK;	659	PUTBACK;
344	}	660	}
345		661
346	return !!SvTRUE (ERRSV);	662	return !!SvTRUE (ERRSV);
347	}	663	}
348		664
		665	static void
349	static void req_destroy (aio_req req)	666	req_destroy (aio_req req)
350	{	667	{
351	if (req->self)	668	if (req->self)
352	{	669	{
353	sv_unmagic (req->self, PERL_MAGIC_ext);	670	sv_unmagic (req->self, PERL_MAGIC_ext);
354	SvREFCNT_dec (req->self);	671	SvREFCNT_dec (req->self);
355	}	672	}
356		673
357	SvREFCNT_dec (req->sv1);	674	SvREFCNT_dec (req->sv1);
358	SvREFCNT_dec (req->sv2);	675	SvREFCNT_dec (req->sv2);
		676	SvREFCNT_dec (req->sv3);
		677	SvREFCNT_dec (req->sv4);
359	SvREFCNT_dec (req->callback);	678	SvREFCNT_dec (req->callback);
360		679
361	Safefree (req);	680	free (req);
362	}	681	}
363		682
		683	static void
364	static void req_cancel_subs (aio_req grp)	684	req_cancel_subs (aio_req grp)
365	{	685	{
366	aio_req sub;
367
368	if (grp->type != EIO_GROUP)	686	if (grp->type != EIO_GROUP)
369	return;	687	return;
370		688
371	SvREFCNT_dec (grp->sv2);	689	SvREFCNT_dec (grp->sv2);
372	grp->sv2 = 0;	690	grp->sv2 = 0;
373		691
374	eio_grp_cancel (grp);	692	eio_grp_cancel (grp);
375	}	693	}
376		694
377	#ifdef USE_SOCKETS_AS_HANDLES	695	static void ecb_cold
378	# define TO_SOCKET(x) (win32_get_osfhandle (x))	696	create_respipe (void)
379	#else	697	{
380	# define TO_SOCKET(x) (x)	698	if (s_epipe_renew (&respipe))
381	#endif	699	croak ("IO::AIO: unable to initialize result pipe");
		700	}
382		701
383	static void	702	static void
384	create_respipe (void)	703	poll_wait (void)
385	{	704	{
386	int old_readfd = respipe [0];
387
388	if (respipe [1] >= 0)
389	respipe_close (TO_SOCKET (respipe [1]));
390
391	#ifdef _WIN32
392	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
393	#else
394	if (pipe (respipe))
395	#endif
396	croak ("unable to initialize result pipe");
397
398	if (old_readfd >= 0)
399	{
400	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
401	croak ("unable to initialize result pipe(2)");
402
403	respipe_close (respipe [0]);
404	respipe [0] = old_readfd;
405	}
406
407	#ifdef _WIN32
408	int arg = 1;
409	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
410	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
411	#else
412	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
413	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
414	#endif
415	croak ("unable to initialize result pipe(3)");
416
417	respipe_osf [0] = TO_SOCKET (respipe [0]);
418	respipe_osf [1] = TO_SOCKET (respipe [1]);
419	}
420
421	static void poll_wait (void)
422	{
423	fd_set rfd;
424
425	while (eio_nreqs ())	705	while (eio_nreqs ())
426	{	706	{
427	int size;	707	int size;
428		708
429	X_LOCK (reslock);	709	X_LOCK (EIO_POOL->reslock);
430	size = res_queue.size;	710	size = EIO_POOL->res_queue.size;
431	X_UNLOCK (reslock);	711	X_UNLOCK (EIO_POOL->reslock);
432		712
433	if (size)	713	if (size)
434	return;	714	return;
435		715
436	etp_maybe_start_thread ();	716	etp_maybe_start_thread (EIO_POOL);
437		717
438	FD_ZERO (&rfd);	718	s_epipe_wait (&respipe);
439	FD_SET (respipe [0], &rfd);
440
441	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
442	}	719	}
443	}	720	}
444		721
445	static int poll_cb (void)	722	static int
		723	poll_cb (void)
446	{	724	{
447	for (;;)	725	for (;;)
448	{	726	{
449	int res = eio_poll ();	727	int res = eio_poll ();
450		728
…		…
456		734
457	poll_wait ();	735	poll_wait ();
458	}	736	}
459	}	737	}
460		738
461	static void atfork_child (void)	739	static void ecb_cold
		740	reinit (void)
462	{	741	{
463	create_respipe ();	742	create_respipe ();
		743
		744	if (eio_init (want_poll, done_poll) < 0)
		745	croak ("IO::AIO: unable to initialise eio library");
464	}	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	/*****************************************************************************/
465		787
466	static SV *	788	static SV *
467	get_cb (SV *cb_sv)	789	get_cb (SV *cb_sv)
468	{	790	{
469	HV *st;	791	SvGETMAGIC (cb_sv);
470	GV *gvp;	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	{
471	CV *cv;	798	SV *cb_cv;
		799	aio_req req;
		800	int req_pri = next_pri;
		801	next_pri = EIO_PRI_DEFAULT;
472		802
473	if (!SvOK (cb_sv))	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
474	return 0;	812	return req;
475
476	cv = sv_2cv (cb_sv, &st, &gvp, 0);
477
478	if (!cv)
479	croak ("IO::AIO callback must be undef or a CODE reference");
480
481	return (SV *)cv;
482	}	813	}
483		814
484	#define dREQ \	815	#define dREQ \
485	SV *cb_cv; \	816	aio_req req = dreq (callback); \
486	aio_req req; \
487	int req_pri = next_pri; \
488	next_pri = EIO_PRI_DEFAULT; \
489	\
490	cb_cv = get_cb (callback); \
491	\
492	Newz (0, req, 1, eio_req); \
493	if (!req) \
494	croak ("out of memory during eio_req allocation"); \
495	\
496	req->callback = SvREFCNT_inc (cb_cv); \
497	req->pri = req_pri
498		817
499	#define REQ_SEND \	818	#define REQ_SEND \
500	PUTBACK; \	819	PUTBACK; \
501	req_submit (req); \	820	req_submit (req); \
502	SPAGAIN; \	821	SPAGAIN; \
503	\	822	\
504	if (GIMME_V != G_VOID) \	823	if (GIMME_V != G_VOID) \
505	XPUSHs (req_sv (req, AIO_REQ_KLASS));	824	XPUSHs (req_sv (req, aio_req_stash));
506		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
507	MODULE = IO::AIO PACKAGE = IO::AIO	892	MODULE = IO::AIO PACKAGE = IO::AIO
508		893
509	PROTOTYPES: ENABLE	894	PROTOTYPES: ENABLE
510		895
511	BOOT:	896	BOOT:
512	{	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_LOCKED)
		991	const_iv (MAP_NORESERVE)
		992	const_iv (MAP_POPULATE)
		993	const_iv (MAP_NONBLOCK)
		994	const_iv (MAP_GROWSDOWN)
		995	const_iv (MAP_32BIT)
		996	const_iv (MAP_HUGETLB)
		997	const_iv (MAP_STACK)
		998
		999	const_iv (FIEMAP_FLAG_SYNC)
		1000	const_iv (FIEMAP_FLAG_XATTR)
		1001	const_iv (FIEMAP_FLAGS_COMPAT)
		1002	const_iv (FIEMAP_EXTENT_LAST)
		1003	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1004	const_iv (FIEMAP_EXTENT_DELALLOC)
		1005	const_iv (FIEMAP_EXTENT_ENCODED)
		1006	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1007	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1008	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1009	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1010	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1011	const_iv (FIEMAP_EXTENT_MERGED)
		1012	const_iv (FIEMAP_EXTENT_SHARED)
		1013
		1014	const_iv (SPLICE_F_MOVE)
		1015	const_iv (SPLICE_F_NONBLOCK)
		1016	const_iv (SPLICE_F_MORE)
		1017	const_iv (SPLICE_F_GIFT)
		1018
		1019	/* these are libeio constants, and are independent of gendef0 */
		1020	const_eio (SEEK_SET)
		1021	const_eio (SEEK_CUR)
		1022	const_eio (SEEK_END)
		1023
		1024	const_eio (MCL_FUTURE)
		1025	const_eio (MCL_CURRENT)
		1026
		1027	const_eio (MS_ASYNC)
		1028	const_eio (MS_INVALIDATE)
		1029	const_eio (MS_SYNC)
		1030
		1031	const_eio (MT_MODIFY)
		1032
		1033	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1034	const_eio (SYNC_FILE_RANGE_WRITE)
		1035	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1036
		1037	const_eio (FALLOC_FL_KEEP_SIZE)
		1038	const_eio (FALLOC_FL_PUNCH_HOLE)
		1039	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1040	const_eio (FALLOC_FL_ZERO_RANGE)
		1041
		1042	const_eio (READDIR_DENTS)
		1043	const_eio (READDIR_DIRS_FIRST)
		1044	const_eio (READDIR_STAT_ORDER)
		1045	const_eio (READDIR_FOUND_UNKNOWN)
		1046
		1047	const_eio (DT_UNKNOWN)
		1048	const_eio (DT_FIFO)
		1049	const_eio (DT_CHR)
		1050	const_eio (DT_DIR)
		1051	const_eio (DT_BLK)
		1052	const_eio (DT_REG)
		1053	const_eio (DT_LNK)
		1054	const_eio (DT_SOCK)
		1055	const_eio (DT_WHT)
		1056	};
		1057
513	stash = gv_stashpv ("IO::AIO", 1);	1058	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1059	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1060	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1061	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
514		1062
515	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1063	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
516	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1064	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
517	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
518	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
519	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
520	#ifndef _WIN32
521	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
522	#endif
523		1065
524	create_respipe ();	1066	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
525		1067
526	if (eio_init (want_poll, done_poll) < 0)	1068	reinit ();
527	croak ("IO::AIO: unable to initialise eio library");
528
529	/* atfork child called in fifo order, so before eio's handler */
530	X_THREAD_ATFORK (0, 0, atfork_child);
531	}	1069	}
532		1070
533	void	1071	void
		1072	reinit ()
		1073	PROTOTYPE:
		1074
		1075	void
534	max_poll_reqs (int nreqs)	1076	max_poll_reqs (unsigned int nreqs)
535	PROTOTYPE: $	1077	PROTOTYPE: $
536	CODE:	1078	CODE:
537	eio_set_max_poll_reqs (nreqs);	1079	eio_set_max_poll_reqs (nreqs);
538		1080
539	void	1081	void
…		…
541	PROTOTYPE: $	1083	PROTOTYPE: $
542	CODE:	1084	CODE:
543	eio_set_max_poll_time (nseconds);	1085	eio_set_max_poll_time (nseconds);
544		1086
545	void	1087	void
546	min_parallel (int nthreads)	1088	min_parallel (unsigned int nthreads)
547	PROTOTYPE: $	1089	PROTOTYPE: $
548	CODE:	1090	CODE:
549	eio_set_min_parallel (nthreads);	1091	eio_set_min_parallel (nthreads);
550		1092
551	void	1093	void
552	max_parallel (int nthreads)	1094	max_parallel (unsigned int nthreads)
553	PROTOTYPE: $	1095	PROTOTYPE: $
554	CODE:	1096	CODE:
555	eio_set_max_parallel (nthreads);	1097	eio_set_max_parallel (nthreads);
556		1098
557	void	1099	void
558	max_idle (int nthreads)	1100	max_idle (unsigned int nthreads)
559	PROTOTYPE: $	1101	PROTOTYPE: $
560	CODE:	1102	CODE:
561	eio_set_max_idle (nthreads);	1103	eio_set_max_idle (nthreads);
562		1104
563	void	1105	void
		1106	idle_timeout (unsigned int seconds)
		1107	PROTOTYPE: $
		1108	CODE:
		1109	eio_set_idle_timeout (seconds);
		1110
		1111	void
564	max_outstanding (int maxreqs)	1112	max_outstanding (unsigned int maxreqs)
565	PROTOTYPE: $	1113	PROTOTYPE: $
566	CODE:	1114	CODE:
567	max_outstanding = maxreqs;	1115	max_outstanding = maxreqs;
568		1116
569	void	1117	void
570	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1118	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
571	PROTOTYPE: $$$;$
572	PPCODE:	1119	PPCODE:
573	{	1120	{
574	dREQ;	1121	dREQ;
575		1122
		1123	req->type = EIO_WD_OPEN;
		1124	req_set_path1 (req, pathname);
		1125
		1126	REQ_SEND;
		1127	}
		1128
		1129	void
		1130	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1131	PPCODE:
		1132	{
		1133	dREQ;
		1134
576	req->type = EIO_OPEN;	1135	req->type = EIO_OPEN;
577	req->sv1 = newSVsv (pathname);	1136	req_set_path1 (req, pathname);
578	req->ptr1 = SvPVbyte_nolen (req->sv1);
579	req->int1 = flags;	1137	req->int1 = flags;
580	req->int2 = mode;	1138	req->int2 = mode;
581		1139
582	REQ_SEND;	1140	REQ_SEND;
583	}	1141	}
584		1142
585	void	1143	void
586	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1144	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
587	PROTOTYPE: $;$
588	ALIAS:	1145	ALIAS:
589	aio_fsync = EIO_FSYNC	1146	aio_fsync = EIO_FSYNC
590	aio_fdatasync = EIO_FDATASYNC	1147	aio_fdatasync = EIO_FDATASYNC
		1148	aio_syncfs = EIO_SYNCFS
591	PPCODE:	1149	PPCODE:
592	{	1150	{
		1151	int fd = s_fileno_croak (fh, 0);
593	dREQ;	1152	dREQ;
594		1153
595	req->type = ix;	1154	req->type = ix;
596	req->sv1 = newSVsv (fh);	1155	req->sv1 = newSVsv (fh);
597	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1156	req->int1 = fd;
598		1157
599	REQ_SEND (req);	1158	REQ_SEND;
600	}	1159	}
601		1160
602	void	1161	void
603	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1162	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
604	PROTOTYPE: $;$
605	PPCODE:	1163	PPCODE:
606	{	1164	{
607	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1165	int fd = s_fileno_croak (fh, 0);
608	dREQ;	1166	dREQ;
609		1167
610	if (close_pipe < 0)	1168	req->type = EIO_SYNC_FILE_RANGE;
		1169	req->sv1 = newSVsv (fh);
		1170	req->int1 = fd;
		1171	req->offs = offset;
		1172	req->size = nbytes;
		1173	req->int2 = flags;
		1174
		1175	REQ_SEND;
		1176	}
		1177
		1178	void
		1179	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1180	PPCODE:
		1181	{
		1182	int fd = s_fileno_croak (fh, 0);
		1183	dREQ;
		1184
		1185	req->type = EIO_FALLOCATE;
		1186	req->sv1 = newSVsv (fh);
		1187	req->int1 = fd;
		1188	req->int2 = mode;
		1189	req->offs = offset;
		1190	req->size = len;
		1191
		1192	REQ_SEND;
		1193	}
		1194
		1195	void
		1196	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1197	PPCODE:
		1198	{
		1199	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1200	int fd = s_fileno_croak (fh, 0);
		1201	dREQ;
		1202
		1203	if (expect_false (close_fd < 0))
611	{	1204	{
612	int pipefd [2];	1205	int pipefd [2];
613		1206
		1207	if (
		1208	#ifdef _WIN32
		1209	_pipe (pipefd, 1, _O_BINARY) < 0
		1210	#else
614	if (pipe (pipefd) < 0	1211	pipe (pipefd) < 0
615	|| close (pipefd [1]) < 0
616	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1212	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1213	#endif
		1214	|| close (pipefd [1]) < 0
		1215	)
617	abort (); /*D*/	1216	abort (); /*D*/
618		1217
619	close_pipe = pipefd [0];	1218	close_fd = pipefd [0];
620	}	1219	}
621		1220
622	req->type = EIO_DUP2;	1221	req->type = EIO_DUP2;
623	req->int1 = close_pipe;	1222	req->int1 = close_fd;
624	req->sv2 = newSVsv (fh);	1223	req->sv2 = newSVsv (fh);
625	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1224	req->int2 = fd;
626		1225
627	REQ_SEND (req);	1226	REQ_SEND;
628	}	1227	}
629		1228
630	void	1229	void
		1230	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1231	PPCODE:
		1232	{
		1233	int fd = s_fileno_croak (fh, 0);
		1234	dREQ;
		1235
		1236	req->type = EIO_SEEK;
		1237	req->sv1 = newSVsv (fh);
		1238	req->int1 = fd;
		1239	req->offs = SvVAL64 (offset);
		1240	req->int2 = whence;
		1241
		1242	REQ_SEND;
		1243	}
		1244
		1245	void
631	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1246	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
632	ALIAS:	1247	ALIAS:
633	aio_read = EIO_READ	1248	aio_read = EIO_READ
634	aio_write = EIO_WRITE	1249	aio_write = EIO_WRITE
635	PROTOTYPE: $$$$$;$
636	PPCODE:	1250	PPCODE:
637	{	1251	{
638	STRLEN svlen;	1252	STRLEN svlen;
		1253	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
639	char *svptr = SvPVbyte (data, svlen);	1254	char *svptr = SvPVbyte (data, svlen);
640	UV len = SvUV (length);	1255	UV len = SvUV (length);
641
642	SvUPGRADE (data, SVt_PV);
643	SvPOK_on (data);
644		1256
645	if (dataoffset < 0)	1257	if (dataoffset < 0)
646	dataoffset += svlen;	1258	dataoffset += svlen;
647		1259
648	if (dataoffset < 0 || dataoffset > svlen)	1260	if (dataoffset < 0 || dataoffset > svlen)
…		…
654	if (!SvOK (length) || len + dataoffset > svlen)	1266	if (!SvOK (length) || len + dataoffset > svlen)
655	len = svlen - dataoffset;	1267	len = svlen - dataoffset;
656	}	1268	}
657	else	1269	else
658	{	1270	{
659	/* read: grow scalar as necessary */	1271	/* read: check type and grow scalar as necessary */
		1272	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
660	svptr = SvGROW (data, len + dataoffset + 1);	1273	svptr = sv_grow (data, len + dataoffset + 1);
		1274	else if (SvCUR (data) < len + dataoffset)
		1275	croak ("length + dataoffset outside of scalar, and cannot grow");
661	}	1276	}
662
663	if (len < 0)
664	croak ("length must not be negative");
665		1277
666	{	1278	{
667	dREQ;	1279	dREQ;
668		1280
669	req->type = ix;	1281	req->type = ix;
670	req->sv1 = newSVsv (fh);	1282	req->sv1 = newSVsv (fh);
671	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1283	req->int1 = fd;
672	: IoOFP (sv_2io (fh)));
673	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1284	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
674	req->size = len;	1285	req->size = len;
675	req->sv2 = SvREFCNT_inc_NN (data);	1286	req->sv2 = SvREFCNT_inc (data);
676	req->ptr2 = (char *)svptr + dataoffset;	1287	req->ptr2 = (char *)svptr + dataoffset;
677	req->stroffset = dataoffset;	1288	req->stroffset = dataoffset;
678		1289
679	if (!SvREADONLY (data))	1290	if (!SvREADONLY (data))
680	{	1291	{
…		…
685	REQ_SEND;	1296	REQ_SEND;
686	}	1297	}
687	}	1298	}
688		1299
689	void	1300	void
690	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1301	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
691	PROTOTYPE: $$;$	1302	ALIAS:
		1303	aio_readlink = EIO_READLINK
		1304	aio_realpath = EIO_REALPATH
692	PPCODE:	1305	PPCODE:
693	{	1306	{
694	SV *data;
695	dREQ;	1307	dREQ;
696		1308
697	req->type = EIO_READLINK;	1309	req->type = ix;
698	req->sv1 = newSVsv (path);	1310	req_set_path1 (req, pathname);
699	req->ptr1 = SvPVbyte_nolen (req->sv1);
700		1311
701	REQ_SEND;	1312	REQ_SEND;
702	}	1313	}
703		1314
704	void	1315	void
705	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1316	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
706	PROTOTYPE: $$$$;$
707	PPCODE:	1317	PPCODE:
708	{	1318	{
		1319	int ifd = s_fileno_croak (in_fh , 0);
		1320	int ofd = s_fileno_croak (out_fh, 1);
709	dREQ;	1321	dREQ;
710		1322
711	req->type = EIO_SENDFILE;	1323	req->type = EIO_SENDFILE;
712	req->sv1 = newSVsv (out_fh);	1324	req->sv1 = newSVsv (out_fh);
713	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1325	req->int1 = ofd;
714	req->sv2 = newSVsv (in_fh);	1326	req->sv2 = newSVsv (in_fh);
715	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1327	req->int2 = ifd;
716	req->offs = SvVAL64 (in_offset);	1328	req->offs = in_offset;
717	req->size = length;	1329	req->size = length;
718		1330
719	REQ_SEND;	1331	REQ_SEND;
720	}	1332	}
721		1333
722	void	1334	void
723	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1335	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
724	PROTOTYPE: $$$;$
725	PPCODE:	1336	PPCODE:
726	{	1337	{
		1338	int fd = s_fileno_croak (fh, 0);
727	dREQ;	1339	dREQ;
728		1340
729	req->type = EIO_READAHEAD;	1341	req->type = EIO_READAHEAD;
730	req->sv1 = newSVsv (fh);	1342	req->sv1 = newSVsv (fh);
731	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1343	req->int1 = fd;
732	req->offs = SvVAL64 (offset);	1344	req->offs = offset;
733	req->size = length;	1345	req->size = length;
734		1346
735	REQ_SEND;	1347	REQ_SEND;
736	}	1348	}
737		1349
738	void	1350	void
739	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1351	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
740	ALIAS:	1352	ALIAS:
741	aio_stat = EIO_STAT	1353	aio_stat = EIO_STAT
742	aio_lstat = EIO_LSTAT	1354	aio_lstat = EIO_LSTAT
		1355	aio_statvfs = EIO_STATVFS
743	PPCODE:	1356	PPCODE:
744	{	1357	{
745	dREQ;	1358	dREQ;
746		1359
747	req->sv1 = newSVsv (fh_or_path);	1360	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
748
749	if (SvPOK (req->sv1))
750	{
751	req->type = ix;
752	req->ptr1 = SvPVbyte_nolen (req->sv1);
753	}
754	else
755	{
756	req->type = EIO_FSTAT;
757	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
758	}
759		1361
760	REQ_SEND;	1362	REQ_SEND;
761	}	1363	}
762		1364
		1365	UV
		1366	major (UV dev)
		1367	ALIAS:
		1368	minor = 1
		1369	CODE:
		1370	RETVAL = ix ? major (dev) : minor (dev);
		1371	OUTPUT:
		1372	RETVAL
		1373
		1374	UV
		1375	makedev (UV maj, UV min)
		1376	CODE:
		1377	RETVAL = makedev (maj, min);
		1378	OUTPUT:
		1379	RETVAL
		1380
763	void	1381	void
764	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1382	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
765	PPCODE:	1383	PPCODE:
766	{	1384	{
767	dREQ;	1385	dREQ;
768		1386
769	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1387	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
770	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1388	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
771	req->sv1 = newSVsv (fh_or_path);	1389	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
772
773	if (SvPOK (req->sv1))
774	{
775	req->type = EIO_UTIME;
776	req->ptr1 = SvPVbyte_nolen (req->sv1);
777	}
778	else
779	{
780	req->type = EIO_FUTIME;
781	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
782	}
783		1390
784	REQ_SEND;	1391	REQ_SEND;
785	}	1392	}
786		1393
787	void	1394	void
788	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1395	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
789	PPCODE:	1396	PPCODE:
790	{	1397	{
791	dREQ;	1398	dREQ;
792		1399
793	req->sv1 = newSVsv (fh_or_path);
794	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1400	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
795		1401	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
796	if (SvPOK (req->sv1))
797	{
798	req->type = EIO_TRUNCATE;
799	req->ptr1 = SvPVbyte_nolen (req->sv1);
800	}
801	else
802	{
803	req->type = EIO_FTRUNCATE;
804	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
805	}
806		1402
807	REQ_SEND;	1403	REQ_SEND;
808	}	1404	}
809		1405
810	void	1406	void
811	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1407	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
812	ALIAS:
813	aio_chmod = EIO_CHMOD
814	aio_mkdir = EIO_MKDIR
815	PPCODE:	1408	PPCODE:
816	{	1409	{
817	dREQ;	1410	dREQ;
818		1411
819	req->int2 = mode;	1412	req->int2 = mode;
820	req->sv1 = newSVsv (fh_or_path);	1413	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
821
822	if (SvPOK (req->sv1))
823	{
824	req->type = ix;
825	req->ptr1 = SvPVbyte_nolen (req->sv1);
826	}
827	else
828	{
829	req->type = EIO_FCHMOD;
830	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
831	}
832		1414
833	REQ_SEND;	1415	REQ_SEND;
834	}	1416	}
835		1417
836	void	1418	void
837	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1419	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
838	PPCODE:	1420	PPCODE:
839	{	1421	{
840	dREQ;	1422	dREQ;
841		1423
842	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1424	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
843	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1425	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
844	req->sv1 = newSVsv (fh_or_path);	1426	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
845
846	if (SvPOK (req->sv1))
847	{
848	req->type = EIO_CHOWN;
849	req->ptr1 = SvPVbyte_nolen (req->sv1);
850	}
851	else
852	{
853	req->type = EIO_FCHOWN;
854	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
855	}
856		1427
857	REQ_SEND;	1428	REQ_SEND;
858	}	1429	}
859		1430
860	void	1431	void
		1432	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1433	PPCODE:
		1434	{
		1435	dREQ;
		1436
		1437	req->type = EIO_READDIR;
		1438	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1439
		1440	if (flags & EIO_READDIR_DENTS)
		1441	req->int1 |= EIO_READDIR_CUSTOM2;
		1442
		1443	req_set_path1 (req, pathname);
		1444
		1445	REQ_SEND;
		1446	}
		1447
		1448	void
		1449	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1450	PPCODE:
		1451	{
		1452	dREQ;
		1453
		1454	req->type = EIO_MKDIR;
		1455	req->int2 = mode;
		1456	req_set_path1 (req, pathname);
		1457
		1458	REQ_SEND;
		1459	}
		1460
		1461	void
861	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1462	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
862	ALIAS:	1463	ALIAS:
863	aio_unlink = EIO_UNLINK	1464	aio_unlink = EIO_UNLINK
864	aio_rmdir = EIO_RMDIR	1465	aio_rmdir = EIO_RMDIR
865	aio_readdir = EIO_READDIR	1466	aio_readdir = EIO_READDIR
866	PPCODE:	1467	PPCODE:
867	{	1468	{
868	dREQ;	1469	dREQ;
869		1470
870	req->type = ix;	1471	req->type = ix;
871	req->sv1 = newSVsv (pathname);	1472	req_set_path1 (req, pathname);
872	req->ptr1 = SvPVbyte_nolen (req->sv1);
873		1473
874	REQ_SEND;	1474	REQ_SEND;
875	}	1475	}
876		1476
877	void	1477	void
878	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1478	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
879	ALIAS:	1479	ALIAS:
880	aio_link = EIO_LINK	1480	aio_link = EIO_LINK
881	aio_symlink = EIO_SYMLINK	1481	aio_symlink = EIO_SYMLINK
882	aio_rename = EIO_RENAME	1482	aio_rename = EIO_RENAME
883	PPCODE:	1483	PPCODE:
884	{	1484	{
		1485	eio_wd wd2 = 0;
885	dREQ;	1486	dREQ;
886		1487
887	req->type = ix;	1488	req->type = ix;
888	req->sv1 = newSVsv (oldpath);	1489	req_set_path1 (req, oldpath);
889	req->ptr1 = SvPVbyte_nolen (req->sv1);	1490	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
890	req->sv2 = newSVsv (newpath);	1491	req->int3 = (long)wd2;
891	req->ptr2 = SvPVbyte_nolen (req->sv2);
892		1492
893	REQ_SEND;	1493	REQ_SEND;
894	}	1494	}
895		1495
896	void	1496	void
897	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1497	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
898	PPCODE:	1498	PPCODE:
899	{	1499	{
900	dREQ;	1500	dREQ;
901		1501
902	req->type = EIO_MKNOD;	1502	req->type = EIO_MKNOD;
903	req->sv1 = newSVsv (pathname);
904	req->ptr1 = SvPVbyte_nolen (req->sv1);
905	req->int2 = (mode_t)mode;	1503	req->int2 = (mode_t)mode;
906	req->offs = dev;	1504	req->offs = dev;
		1505	req_set_path1 (req, pathname);
907		1506
908	REQ_SEND;	1507	REQ_SEND;
909	}	1508	}
910		1509
911	void	1510	void
		1511	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
		1512	ALIAS:
		1513	aio_mtouch = EIO_MTOUCH
		1514	aio_msync = EIO_MSYNC
		1515	PPCODE:
		1516	{
		1517	STRLEN svlen;
		1518	char *svptr = SvPVbyte (data, svlen);
		1519	UV len = SvUV (length);
		1520
		1521	if (offset < 0)
		1522	offset += svlen;
		1523
		1524	if (offset < 0 || offset > svlen)
		1525	croak ("offset outside of scalar");
		1526
		1527	if (!SvOK (length) || len + offset > svlen)
		1528	len = svlen - offset;
		1529
		1530	{
		1531	dREQ;
		1532
		1533	req->type = ix;
		1534	req->sv2 = SvREFCNT_inc (data);
		1535	req->ptr2 = (char *)svptr + offset;
		1536	req->size = len;
		1537	req->int1 = flags;
		1538
		1539	REQ_SEND;
		1540	}
		1541	}
		1542
		1543	void
		1544	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1545	PPCODE:
		1546	{
		1547	STRLEN svlen;
		1548	char *svptr = SvPVbyte (data, svlen);
		1549	UV 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	{
		1561	dREQ;
		1562
		1563	req->type = EIO_MLOCK;
		1564	req->sv2 = SvREFCNT_inc (data);
		1565	req->ptr2 = (char *)svptr + offset;
		1566	req->size = len;
		1567
		1568	REQ_SEND;
		1569	}
		1570	}
		1571
		1572	void
		1573	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1574	PPCODE:
		1575	{
		1576	dREQ;
		1577
		1578	req->type = EIO_MLOCKALL;
		1579	req->int1 = flags;
		1580
		1581	REQ_SEND;
		1582	}
		1583
		1584	void
		1585	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1586	PPCODE:
		1587	{
		1588	int fd = s_fileno_croak (fh, 0);
		1589	dREQ;
		1590
		1591	req->type = EIO_CUSTOM;
		1592	req->sv1 = newSVsv (fh);
		1593	req->int1 = fd;
		1594
		1595	req->feed = fiemap;
		1596	#if HAVE_FIEMAP
		1597	/* keep our fingers crossed that the next two types are 64 bit */
		1598	req->offs = start;
		1599	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1600	req->int2 = flags;
		1601	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1602	#endif
		1603
		1604	REQ_SEND;
		1605	}
		1606
		1607	void
912	aio_busy (double delay, SV *callback=&PL_sv_undef)	1608	aio_busy (double delay, SV *callback = &PL_sv_undef)
913	PPCODE:	1609	PPCODE:
914	{	1610	{
915	dREQ;	1611	dREQ;
916		1612
917	req->type = EIO_BUSY;	1613	req->type = EIO_BUSY;
…		…
919		1615
920	REQ_SEND;	1616	REQ_SEND;
921	}	1617	}
922		1618
923	void	1619	void
924	aio_group (SV *callback=&PL_sv_undef)	1620	aio_group (SV *callback = &PL_sv_undef)
925	PROTOTYPE: ;$
926	PPCODE:	1621	PPCODE:
927	{	1622	{
928	dREQ;	1623	dREQ;
929		1624
930	req->type = EIO_GROUP;	1625	req->type = EIO_GROUP;
931		1626
		1627	PUTBACK;
932	req_submit (req);	1628	req_submit (req);
		1629	SPAGAIN;
		1630
933	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1631	XPUSHs (req_sv (req, aio_grp_stash));
934	}	1632	}
935		1633
936	void	1634	void
937	aio_nop (SV *callback=&PL_sv_undef)	1635	aio_nop (SV *callback = &PL_sv_undef)
938	ALIAS:	1636	ALIAS:
939	aio_nop = EIO_NOP	1637	aio_nop = EIO_NOP
940	aio_sync = EIO_SYNC	1638	aio_sync = EIO_SYNC
941	PPCODE:	1639	PPCODE:
942	{	1640	{
…		…
946		1644
947	REQ_SEND;	1645	REQ_SEND;
948	}	1646	}
949		1647
950	int	1648	int
951	aioreq_pri (int pri = 0)	1649	aioreq_pri (int pri = NO_INIT)
952	PROTOTYPE: ;$
953	CODE:	1650	CODE:
954	RETVAL = next_pri;	1651	RETVAL = next_pri;
955	if (items > 0)	1652	if (items > 0)
956	{	1653	{
957	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1654	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
969	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1666	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
970	next_pri = nice;	1667	next_pri = nice;
971		1668
972	void	1669	void
973	flush ()	1670	flush ()
974	PROTOTYPE:
975	CODE:	1671	CODE:
976	while (eio_nreqs ())	1672	while (eio_nreqs ())
977	{	1673	{
978	poll_wait ();	1674	poll_wait ();
979	poll_cb ();	1675	poll_cb ();
980	}	1676	}
981		1677
982	int	1678	int
983	poll()	1679	poll ()
984	PROTOTYPE:
985	CODE:	1680	CODE:
986	poll_wait ();	1681	poll_wait ();
987	RETVAL = poll_cb ();	1682	RETVAL = poll_cb ();
988	OUTPUT:	1683	OUTPUT:
989	RETVAL	1684	RETVAL
990		1685
991	int	1686	int
992	poll_fileno()	1687	poll_fileno ()
993	PROTOTYPE:
994	CODE:	1688	CODE:
995	RETVAL = respipe [0];	1689	RETVAL = s_epipe_fd (&respipe);
996	OUTPUT:	1690	OUTPUT:
997	RETVAL	1691	RETVAL
998		1692
999	int	1693	int
1000	poll_cb(...)	1694	poll_cb (...)
1001	PROTOTYPE:	1695	PROTOTYPE:
1002	CODE:	1696	CODE:
1003	RETVAL = poll_cb ();	1697	RETVAL = poll_cb ();
1004	OUTPUT:	1698	OUTPUT:
1005	RETVAL	1699	RETVAL
1006		1700
1007	void	1701	void
1008	poll_wait()	1702	poll_wait ()
1009	PROTOTYPE:
1010	CODE:	1703	CODE:
1011	poll_wait ();	1704	poll_wait ();
1012		1705
1013	int	1706	int
1014	nreqs()	1707	nreqs ()
1015	PROTOTYPE:
1016	CODE:	1708	CODE:
1017	RETVAL = eio_nreqs ();	1709	RETVAL = eio_nreqs ();
1018	OUTPUT:	1710	OUTPUT:
1019	RETVAL	1711	RETVAL
1020		1712
1021	int	1713	int
1022	nready()	1714	nready ()
1023	PROTOTYPE:
1024	CODE:	1715	CODE:
1025	RETVAL = eio_nready ();	1716	RETVAL = eio_nready ();
1026	OUTPUT:	1717	OUTPUT:
1027	RETVAL	1718	RETVAL
1028		1719
1029	int	1720	int
1030	npending()	1721	npending ()
1031	PROTOTYPE:
1032	CODE:	1722	CODE:
1033	RETVAL = eio_npending ();	1723	RETVAL = eio_npending ();
1034	OUTPUT:	1724	OUTPUT:
1035	RETVAL	1725	RETVAL
1036		1726
1037	int	1727	int
1038	nthreads()	1728	nthreads ()
1039	PROTOTYPE:
1040	CODE:	1729	CODE:
1041	RETVAL = eio_nthreads ();	1730	RETVAL = eio_nthreads ();
1042	OUTPUT:	1731	OUTPUT:
1043	RETVAL	1732	RETVAL
1044		1733
		1734	int
		1735	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1736	CODE:
		1737	RETVAL = posix_fadvise (fh, offset, length, advice);
		1738	OUTPUT:
		1739	RETVAL
		1740
		1741	IV
		1742	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1743	CODE:
		1744	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1745	OUTPUT:
		1746	RETVAL
		1747
		1748	void
		1749	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1750	PPCODE:
		1751	sv_unmagic (scalar, MMAP_MAGIC);
		1752	{
		1753	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1754	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1755	if (addr == (void *)-1)
		1756	XSRETURN_NO;
		1757
		1758	sv_force_normal (scalar);
		1759
		1760	/* we store the length in mg_obj, as namlen is I32 :/ */
		1761	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1762	->mg_obj = (SV *)length;
		1763
		1764	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1765
		1766	if (!(prot & PROT_WRITE))
		1767	SvREADONLY_on (scalar);
		1768
		1769	if (SvLEN (scalar))
		1770	Safefree (SvPVX (scalar));
		1771
		1772	SvPVX (scalar) = (char *)addr;
		1773	SvCUR_set (scalar, length);
		1774	SvLEN_set (scalar, 0);
		1775	SvPOK_only (scalar);
		1776
		1777	XSRETURN_YES;
		1778	}
		1779
		1780	void
		1781	munmap (SV *scalar)
		1782	CODE:
		1783	sv_unmagic (scalar, MMAP_MAGIC);
		1784
		1785	int
		1786	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1787	ALIAS:
		1788	mprotect = 1
		1789	CODE:
		1790	{
		1791	STRLEN svlen;
		1792	void *addr = SvPVbyte (scalar, svlen);
		1793	STRLEN len = SvUV (length);
		1794
		1795	if (offset < 0)
		1796	offset += svlen;
		1797
		1798	if (offset < 0 || offset > svlen)
		1799	croak ("offset outside of scalar");
		1800
		1801	if (!SvOK (length) || len + offset > svlen)
		1802	len = svlen - offset;
		1803
		1804	addr = (void *)(((intptr_t)addr) + offset);
		1805	eio_page_align (&addr, &len);
		1806
		1807	switch (ix)
		1808	{
		1809	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1810	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1811	}
		1812	}
		1813	OUTPUT:
		1814	RETVAL
		1815
		1816	int
		1817	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1818	CODE:
		1819	{
		1820	STRLEN svlen;
		1821	void *addr = SvPVbyte (scalar, svlen);
		1822	size_t len = SvUV (length);
		1823
		1824	if (offset < 0)
		1825	offset += svlen;
		1826
		1827	if (offset < 0 || offset > svlen)
		1828	croak ("offset outside of scalar");
		1829
		1830	if (!SvOK (length) || len + offset > svlen)
		1831	len = svlen - offset;
		1832
		1833	addr = (void *)(((intptr_t)addr) + offset);
		1834	eio_page_align (&addr, &len);
		1835	#if _POSIX_MEMLOCK_RANGE
		1836	RETVAL = munlock (addr, len);
		1837	#else
		1838	RETVAL = EIO_ENOSYS ();
		1839	#endif
		1840	}
		1841	OUTPUT:
		1842	RETVAL
		1843
		1844	int
		1845	munlockall ()
		1846	CODE:
		1847	#if _POSIX_MEMLOCK
		1848	munlockall ();
		1849	#else
		1850	RETVAL = EIO_ENOSYS ();
		1851	#endif
		1852	OUTPUT:
		1853	RETVAL
		1854
		1855	int
		1856	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1857	CODE:
		1858	{
		1859	#if HAVE_LINUX_SPLICE
		1860	loff_t off_in_, off_out_;
		1861	RETVAL = splice (
		1862	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1863	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1864	length, flags
		1865	);
		1866	#else
		1867	RETVAL = EIO_ENOSYS ();
		1868	#endif
		1869	}
		1870	OUTPUT:
		1871	RETVAL
		1872
		1873	int
		1874	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1875	CODE:
		1876	#if HAVE_LINUX_SPLICE
		1877	RETVAL = tee (rfh, wfh, length, flags);
		1878	#else
		1879	RETVAL = EIO_ENOSYS ();
		1880	#endif
		1881	OUTPUT:
		1882	RETVAL
		1883
		1884	int
		1885	pipesize (aio_rfd rfh, int new_size = -1)
		1886	PROTOTYPE: $;$
		1887	CODE:
		1888	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1889	if (new_size >= 0)
		1890	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1891	else
		1892	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1893	#else
		1894	errno = ENOSYS;
		1895	RETVAL = -1;
		1896	#endif
		1897	OUTPUT:
		1898	RETVAL
		1899
		1900	void
		1901	pipe2 (int flags = 0)
		1902	PROTOTYPE: ;$
		1903	PPCODE:
		1904	{
		1905	int fd[2];
		1906	int res;
		1907
		1908	if (flags)
		1909	#if HAVE_PIPE2
		1910	res = pipe2 (fd, flags);
		1911	#else
		1912	res = (errno = ENOSYS, -1);
		1913	#endif
		1914	else
		1915	res = pipe (fd);
		1916
		1917	if (!res)
		1918	{
		1919	EXTEND (SP, 2);
		1920	PUSHs (newmortalFH (fd[0], O_RDONLY));
		1921	PUSHs (newmortalFH (fd[1], O_WRONLY));
		1922	}
		1923	}
		1924
1045	void _on_next_submit (SV *cb)	1925	void _on_next_submit (SV *cb)
1046	CODE:	1926	CODE:
1047	SvREFCNT_dec (on_next_submit);	1927	SvREFCNT_dec (on_next_submit);
1048	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1928	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1049		1929
1050	PROTOTYPES: DISABLE	1930	PROTOTYPES: DISABLE
1051		1931
		1932	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1933
		1934	BOOT:
		1935	{
		1936	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1937	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1938	}
		1939
		1940	void
		1941	DESTROY (SV *self)
		1942	CODE:
		1943	{
		1944	aio_wd wd = SvAIO_WD (self);
		1945	#if HAVE_AT
		1946	{
		1947	SV *callback = &PL_sv_undef;
		1948	dREQ; /* clobbers next_pri :/ */
		1949	next_pri = req->pri; /* restore next_pri */
		1950	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1951	req->type = EIO_WD_CLOSE;
		1952	req->wd = wd;
		1953	REQ_SEND;
		1954	}
		1955	#else
		1956	eio_wd_close_sync (wd);
		1957	#endif
		1958	}
		1959
1052	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1960	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1053		1961
1054	void	1962	void
1055	cancel (aio_req_ornot req)	1963	cancel (aio_req_ornot req)
1056	CODE:	1964	CODE:
1057	eio_cancel (req);	1965	eio_cancel (req);
1058		1966
1059	void	1967	void
1060	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1968	cb (aio_req_ornot req, SV *callback = NO_INIT)
1061	PPCODE:	1969	PPCODE:
1062	{	1970	{
1063	if (GIMME_V != G_VOID)	1971	if (GIMME_V != G_VOID)
1064	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1972	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1065		1973
…		…
1110	AV *av;	2018	AV *av;
1111		2019
1112	grp->errorno = errno;	2020	grp->errorno = errno;
1113		2021
1114	av = newAV ();	2022	av = newAV ();
		2023	av_extend (av, items - 1);
1115		2024
1116	for (i = 1; i < items; ++i )	2025	for (i = 1; i < items; ++i )
1117	av_push (av, newSVsv (ST (i)));	2026	av_push (av, newSVsv (ST (i)));
1118		2027
1119	SvREFCNT_dec (grp->sv1);	2028	SvREFCNT_dec (grp->sv1);
…		…
1129	limit (aio_req grp, int limit)	2038	limit (aio_req grp, int limit)
1130	CODE:	2039	CODE:
1131	eio_grp_limit (grp, limit);	2040	eio_grp_limit (grp, limit);
1132		2041
1133	void	2042	void
1134	feed (aio_req grp, SV *callback=&PL_sv_undef)	2043	feed (aio_req grp, SV *callback = &PL_sv_undef)
1135	CODE:	2044	CODE:
1136	{	2045	{
1137	SvREFCNT_dec (grp->sv2);	2046	SvREFCNT_dec (grp->sv2);
1138	grp->sv2 = newSVsv (callback);	2047	grp->sv2 = newSVsv (callback);
		2048	grp->feed = aio_grp_feed;
1139		2049
1140	if (grp->int2 <= 0)	2050	if (grp->int2 <= 0)
1141	grp->int2 = 2;	2051	grp->int2 = 2;
1142		2052
1143	eio_grp_limit (grp, grp->int2);	2053	eio_grp_limit (grp, grp->int2);

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