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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.142 by root, Sat Jun 6 18:19:35 2009 UTC vs.
Revision 1.240 by root, Tue Feb 23 19:42:59 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 req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	129	#define EIO_DESTROY(req) req_destroy (req)
118		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	/*****************************************************************************/
		266
119	enum {	267	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	268	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	269	};
122		270
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	271	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	272	typedef eio_req *aio_req_ornot;
		273	typedef eio_wd aio_wd;
127		274
128	static SV *on_next_submit;	275	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	276	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	277	static int max_outstanding;
131		278
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	279	static s_epipe respipe;
133		280
134	static void req_destroy (aio_req req);	281	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	282	static void req_cancel (aio_req req);
136		283
137	static void want_poll (void)	284	static void
		285	want_poll (void)
138	{	286	{
139	/* write a dummy byte to the pipe so fh becomes ready */	287	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	288	s_epipe_signal (&respipe);
141	}	289	}
142		290
143	static void done_poll (void)	291	static void
		292	done_poll (void)
144	{	293	{
145	/* read any signals sent by the worker threads */	294	/* read any signals sent by the worker threads */
146	char buf [4];	295	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	296	}
150		297
151	/* must be called at most once */	298	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	299	static SV *
		300	req_sv (aio_req req, HV *stash)
153	{	301	{
154	if (!req->self)	302	if (!req->self)
155	{	303	{
156	req->self = (SV *)newHV ();	304	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	305	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	306	}
159		307
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	308	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	309	}
162		310
163	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)
164	{	319	{
165	MAGIC *mg;	320	MAGIC *mg;
166		321
167	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")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	327	croak ("object of class IO::AIO::REQ expected");
169		328
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	329	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		330
172	return mg ? (aio_req)mg->mg_ptr : 0;	331	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	332	}
174		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
175	static void aio_grp_feed (aio_req grp)	371	aio_grp_feed (aio_req grp)
176	{	372	{
177	if (grp->sv2 && SvOK (grp->sv2))	373	if (grp->sv2 && SvOK (grp->sv2))
178	{	374	{
179	dSP;	375	dSP;
180		376
181	ENTER;	377	ENTER;
182	SAVETMPS;	378	SAVETMPS;
183	PUSHMARK (SP);	379	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	380	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	381	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	382	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	383	SPAGAIN;
188	FREETMPS;	384	FREETMPS;
189	LEAVE;	385	LEAVE;
190	}	386	}
191	}	387	}
192		388
		389	static void
193	static void req_submit (eio_req *req)	390	req_submit (eio_req *req)
194	{	391	{
195	eio_submit (req);	392	eio_submit (req);
196		393
197	if (expect_false (on_next_submit))	394	if (expect_false (on_next_submit))
198	{	395	{
…		…
205	PUTBACK;	402	PUTBACK;
206	call_sv (cb, G_DISCARD | G_EVAL);	403	call_sv (cb, G_DISCARD | G_EVAL);
207	}	404	}
208	}	405	}
209		406
		407	static int
210	static int req_invoke (eio_req *req)	408	req_invoke (eio_req *req)
211	{	409	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	410	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	411	SvREADONLY_off (req->sv2);
216		412
217	if (!EIO_CANCELLED (req) && req->callback)	413	if (!EIO_CANCELLED (req) && req->callback)
218	{	414	{
		415	dSP;
		416	static SV *sv_result_cache; /* caches the result integer SV */
		417	SV *sv_result;
		418
219	ENTER;	419	ENTER;
220	SAVETMPS;	420	SAVETMPS;
221	PUSHMARK (SP);	421	PUSHMARK (SP);
222	EXTEND (SP, 1);	422	EXTEND (SP, 1);
223		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
224	switch (req->type)	437	switch (req->type)
225	{	438	{
		439	case EIO_WD_OPEN:
		440	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		441	break;
		442
226	case EIO_READDIR:	443	case EIO_READDIR:
227	{	444	{
228	SV *rv = &PL_sv_undef;	445	SV *rv = &PL_sv_undef;
229		446
230	if (req->result >= 0)	447	if (req->result >= 0)
231	{	448	{
232	int i;	449	int i;
233	char *buf = req->ptr2;	450	char *names = (char *)req->ptr2;
		451	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234	AV *av = newAV ();	452	AV *av = newAV ();
235		453
236	av_extend (av, req->result - 1);	454	av_extend (av, req->result - 1);
237		455
238	for (i = 0; i < req->result; ++i)	456	for (i = 0; i < req->result; ++i)
239	{	457	{
240	if (req->int1 & EIO_READDIR_DENTS)	458	if (req->int1 & EIO_READDIR_DENTS)
241	{	459	{
242	eio_dirent *ent = (eio_dirent *)buf;
243	SV *namesv = newSVpvn (ent->name, ent->namelen);	460	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
244		461
245	if (req->int1 & EIO_READDIR_CUSTOM2)	462	if (req->int1 & EIO_READDIR_CUSTOM2)
246	{	463	{
247	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */	464	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
248	AV *avent = newAV ();	465	AV *avent = newAV ();
…		…
254	sv_type [ent->type] = newSViv (ent->type);	471	sv_type [ent->type] = newSViv (ent->type);
255	SvREADONLY_on (sv_type [ent->type]);	472	SvREADONLY_on (sv_type [ent->type]);
256	}	473	}
257		474
258	av_store (avent, 0, namesv);	475	av_store (avent, 0, namesv);
		476	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
259	av_store (avent, 1, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));	477	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
260	av_store (avent, 2, SvREFCNT_inc (sv_type [ent->type]));
261		478
262	av_store (av, i, newRV_noinc ((SV *)avent));	479	av_store (av, i, newRV_noinc ((SV *)avent));
263	}	480	}
264	else	481	else
265	av_store (av, i, namesv);	482	av_store (av, i, namesv);
266		483
267	buf += sizeof (eio_dirent);	484	++ent;
268	}	485	}
269	else	486	else
270	{	487	{
271	SV *name = newSVpv (buf, 0);	488	SV *name = newSVpv (names, 0);
272	av_store (av, i, name);	489	av_store (av, i, name);
273	buf += SvCUR (name) + 1;	490	names += SvCUR (name) + 1;
274	}	491	}
275	}	492	}
276		493
277	rv = sv_2mortal (newRV_noinc ((SV *)av));	494	rv = sv_2mortal (newRV_noinc ((SV *)av));
278	}	495	}
…		…
283	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	500	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
284	}	501	}
285	break;	502	break;
286		503
287	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:
288	{	510	{
289	/* convert fd to fh */
290	SV *fh = &PL_sv_undef;	511	SV *rv = &PL_sv_undef;
291		512
		513	#ifndef _WIN32
292	if (req->result >= 0)	514	if (req->result >= 0)
293	{	515	{
		516	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
294	GV *gv = (GV *)sv_newmortal ();	517	HV *hv = newHV ();
295	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
296	char sym [64];	519	* chooses to make it a struct.
297	int symlen;
298		520	*/
299	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	521	unsigned long fsid = 0;
300	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));
301		523
302	symlen = snprintf (	524	rv = sv_2mortal (newRV_noinc ((SV *)hv));
303	sym,
304	sizeof (sym),
305	"%s&=%d",
306	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
307	req->result
308	);
309		525
310	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	526	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
311	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);
312	}	537	}
		538	#endif
313		539
314	PUSHs (fh);	540	PUSHs (rv);
315	}	541	}
		542
316	break;	543	break;
317		544
318	case EIO_GROUP:	545	case EIO_GROUP:
319	req->int1 = 2; /* mark group as finished */	546	req->int1 = 2; /* mark group as finished */
320		547
…		…
332	case EIO_NOP:	559	case EIO_NOP:
333	case EIO_BUSY:	560	case EIO_BUSY:
334	break;	561	break;
335		562
336	case EIO_READLINK:	563	case EIO_READLINK:
		564	case EIO_REALPATH:
337	if (req->result > 0)	565	if (req->result > 0)
338	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	566	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
339	break;	567	break;
340		568
341	case EIO_STAT:	569	case EIO_STAT:
342	case EIO_LSTAT:	570	case EIO_LSTAT:
343	case EIO_FSTAT:	571	case EIO_FSTAT:
344	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	572	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		573
345	PL_laststatval = req->result;	574	if (!(PL_laststatval = req->result))
		575	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
346	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	576	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
347	PUSHs (sv_2mortal (newSViv (req->result)));	577
		578	PUSHs (sv_result);
		579	break;
		580
		581	case EIO_SEEK:
		582	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
348	break;	583	break;
349		584
350	case EIO_READ:	585	case EIO_READ:
351	{	586	{
352	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));
353	*SvEND (req->sv2) = 0;	588	*SvEND (req->sv2) = 0;
354	SvPOK_only (req->sv2);	589	SvPOK_only (req->sv2);
355	SvSETMAGIC (req->sv2);	590	SvSETMAGIC (req->sv2);
356	PUSHs (sv_2mortal (newSViv (req->result)));	591	PUSHs (sv_result);
357	}	592	}
358	break;	593	break;
359		594
360	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 */
361	if (req->result > 0)	636	if (req->result > 0)
362	req->result = 0;	637	SvIV_set (sv_result, 0);
363	/* FALLTHROUGH */	638	/* FALLTHROUGH */
364		639
365	default:	640	default:
366	PUSHs (sv_2mortal (newSViv (req->result)));	641	PUSHs (sv_result);
367	break;	642	break;
368	}	643	}
369		644
370	errno = req->errorno;	645	errno = req->errorno;
371		646
372	PUTBACK;	647	PUTBACK;
373	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	648	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
374	SPAGAIN;	649	SPAGAIN;
375		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
376	FREETMPS;	656	FREETMPS;
377	LEAVE;	657	LEAVE;
378		658
379	PUTBACK;	659	PUTBACK;
380	}	660	}
381		661
382	return !!SvTRUE (ERRSV);	662	return !!SvTRUE (ERRSV);
383	}	663	}
384		664
		665	static void
385	static void req_destroy (aio_req req)	666	req_destroy (aio_req req)
386	{	667	{
387	if (req->self)	668	if (req->self)
388	{	669	{
389	sv_unmagic (req->self, PERL_MAGIC_ext);	670	sv_unmagic (req->self, PERL_MAGIC_ext);
390	SvREFCNT_dec (req->self);	671	SvREFCNT_dec (req->self);
391	}	672	}
392		673
393	SvREFCNT_dec (req->sv1);	674	SvREFCNT_dec (req->sv1);
394	SvREFCNT_dec (req->sv2);	675	SvREFCNT_dec (req->sv2);
		676	SvREFCNT_dec (req->sv3);
		677	SvREFCNT_dec (req->sv4);
395	SvREFCNT_dec (req->callback);	678	SvREFCNT_dec (req->callback);
396		679
397	Safefree (req);	680	free (req);
398	}	681	}
399		682
		683	static void
400	static void req_cancel_subs (aio_req grp)	684	req_cancel_subs (aio_req grp)
401	{	685	{
402	aio_req sub;
403
404	if (grp->type != EIO_GROUP)	686	if (grp->type != EIO_GROUP)
405	return;	687	return;
406		688
407	SvREFCNT_dec (grp->sv2);	689	SvREFCNT_dec (grp->sv2);
408	grp->sv2 = 0;	690	grp->sv2 = 0;
409		691
410	eio_grp_cancel (grp);	692	eio_grp_cancel (grp);
411	}	693	}
412		694
413	#ifdef USE_SOCKETS_AS_HANDLES	695	static void ecb_cold
414	# define TO_SOCKET(x) (win32_get_osfhandle (x))	696	create_respipe (void)
415	#else	697	{
416	# define TO_SOCKET(x) (x)	698	if (s_epipe_renew (&respipe))
417	#endif	699	croak ("IO::AIO: unable to initialize result pipe");
		700	}
418		701
419	static void	702	static void
420	create_respipe (void)	703	poll_wait (void)
421	{	704	{
422	int old_readfd = respipe [0];
423
424	if (respipe [1] >= 0)
425	respipe_close (TO_SOCKET (respipe [1]));
426
427	#ifdef _WIN32
428	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
429	#else
430	if (pipe (respipe))
431	#endif
432	croak ("unable to initialize result pipe");
433
434	if (old_readfd >= 0)
435	{
436	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
437	croak ("unable to initialize result pipe(2)");
438
439	respipe_close (respipe [0]);
440	respipe [0] = old_readfd;
441	}
442
443	#ifdef _WIN32
444	int arg = 1;
445	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
446	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
447	#else
448	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
449	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
450	#endif
451	croak ("unable to initialize result pipe(3)");
452
453	respipe_osf [0] = TO_SOCKET (respipe [0]);
454	respipe_osf [1] = TO_SOCKET (respipe [1]);
455	}
456
457	static void poll_wait (void)
458	{
459	fd_set rfd;
460
461	while (eio_nreqs ())	705	while (eio_nreqs ())
462	{	706	{
463	int size;	707	int size;
464		708
465	X_LOCK (reslock);	709	X_LOCK (EIO_POOL->reslock);
466	size = res_queue.size;	710	size = EIO_POOL->res_queue.size;
467	X_UNLOCK (reslock);	711	X_UNLOCK (EIO_POOL->reslock);
468		712
469	if (size)	713	if (size)
470	return;	714	return;
471		715
472	etp_maybe_start_thread ();	716	etp_maybe_start_thread (EIO_POOL);
473		717
474	FD_ZERO (&rfd);	718	s_epipe_wait (&respipe);
475	FD_SET (respipe [0], &rfd);
476
477	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
478	}	719	}
479	}	720	}
480		721
481	static int poll_cb (void)	722	static int
		723	poll_cb (void)
482	{	724	{
483	for (;;)	725	for (;;)
484	{	726	{
485	int res = eio_poll ();	727	int res = eio_poll ();
486		728
…		…
492		734
493	poll_wait ();	735	poll_wait ();
494	}	736	}
495	}	737	}
496		738
497	static void atfork_child (void)	739	static void ecb_cold
		740	reinit (void)
498	{	741	{
499	create_respipe ();	742	create_respipe ();
		743
		744	if (eio_init (want_poll, done_poll) < 0)
		745	croak ("IO::AIO: unable to initialise eio library");
500	}	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	/*****************************************************************************/
501		787
502	static SV *	788	static SV *
503	get_cb (SV *cb_sv)	789	get_cb (SV *cb_sv)
504	{	790	{
505	HV *st;	791	SvGETMAGIC (cb_sv);
506	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	{
507	CV *cv;	798	SV *cb_cv;
		799	aio_req req;
		800	int req_pri = next_pri;
		801	next_pri = EIO_PRI_DEFAULT;
508		802
509	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
510	return 0;	812	return req;
511
512	cv = sv_2cv (cb_sv, &st, &gvp, 0);
513
514	if (!cv)
515	croak ("IO::AIO callback must be undef or a CODE reference");
516
517	return (SV *)cv;
518	}	813	}
519		814
520	#define dREQ \	815	#define dREQ \
521	SV *cb_cv; \	816	aio_req req = dreq (callback); \
522	aio_req req; \
523	int req_pri = next_pri; \
524	next_pri = EIO_PRI_DEFAULT; \
525	\
526	cb_cv = get_cb (callback); \
527	\
528	Newz (0, req, 1, eio_req); \
529	if (!req) \
530	croak ("out of memory during eio_req allocation"); \
531	\
532	req->callback = SvREFCNT_inc (cb_cv); \
533	req->pri = req_pri
534		817
535	#define REQ_SEND \	818	#define REQ_SEND \
536	PUTBACK; \	819	PUTBACK; \
537	req_submit (req); \	820	req_submit (req); \
538	SPAGAIN; \	821	SPAGAIN; \
539	\	822	\
540	if (GIMME_V != G_VOID) \	823	if (GIMME_V != G_VOID) \
541	XPUSHs (req_sv (req, AIO_REQ_KLASS));	824	XPUSHs (req_sv (req, aio_req_stash));
542		825
543	static int	826	ecb_inline void
544	extract_fd (SV *fh, int wr)	827	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
545	{	828	{
546	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	829	if (expect_false (SvROK (path)))
		830	{
		831	SV *rv = SvRV (path);
		832	SV *wdob;
547		833
548	if (fd < 0)	834	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
549	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");	835	{
		836	path = AvARRAY (rv)[1];
		837	wdob = AvARRAY (rv)[0];
550		838
551	return fd;	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);
552	}	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;
553		891
554	MODULE = IO::AIO PACKAGE = IO::AIO	892	MODULE = IO::AIO PACKAGE = IO::AIO
555		893
556	PROTOTYPES: ENABLE	894	PROTOTYPES: ENABLE
557		895
558	BOOT:	896	BOOT:
559	{	897	{
560	stash = gv_stashpv ("IO::AIO", 1);
561
562	static const struct {	898	static const struct {
563	const char *name;	899	const char *name;
564	IV iv;	900	IV iv;
565	} *civ, const_iv[] = {	901	} *civ, const_iv[] = {
566	# define const_iv(name, value) { # name, (IV) value },	902	# define const_niv(name, value) { # name, (IV) value },
		903	# define const_iv(name) { # name, (IV) name },
567	# define const_eio(name) { # name, (IV) EIO_ ## name },	904	# define const_eio(name) { # name, (IV) EIO_ ## name },
568	const_iv (EXDEV , EXDEV)	905
		906	/* you have to re-run ./gendef0 after adding/removing any constants here */
		907	/* the first block can be undef if missing */
569	const_iv (ENOSYS , ENOSYS)	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 */
570	const_iv (O_RDONLY, O_RDONLY)	930	const_iv (O_RDONLY)
571	const_iv (O_WRONLY, O_WRONLY)	931	const_iv (O_WRONLY)
		932	const_iv (O_RDWR)
572	const_iv (O_CREAT , O_CREAT)	933	const_iv (O_CREAT)
573	const_iv (O_TRUNC , O_TRUNC)	934	const_iv (O_TRUNC)
574	#ifndef _WIN32	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
575	const_iv (S_IFIFO , S_IFIFO)	956	const_iv (S_IFIFO)
576	#endif	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
577	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1033	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
578	const_eio (SYNC_FILE_RANGE_WRITE)	1034	const_eio (SYNC_FILE_RANGE_WRITE)
579	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	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)
580		1041
581	const_eio (READDIR_DENTS)	1042	const_eio (READDIR_DENTS)
582	const_eio (READDIR_DIRS_FIRST)	1043	const_eio (READDIR_DIRS_FIRST)
583	const_eio (READDIR_STAT_ORDER)	1044	const_eio (READDIR_STAT_ORDER)
584	const_eio (READDIR_FOUND_UNKNOWN)	1045	const_eio (READDIR_FOUND_UNKNOWN)
…		…
592	const_eio (DT_LNK)	1053	const_eio (DT_LNK)
593	const_eio (DT_SOCK)	1054	const_eio (DT_SOCK)
594	const_eio (DT_WHT)	1055	const_eio (DT_WHT)
595	};	1056	};
596		1057
		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);
		1062
597	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1063	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
598	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1064	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
599		1065
600	create_respipe ();	1066	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
601		1067
602	if (eio_init (want_poll, done_poll) < 0)	1068	reinit ();
603	croak ("IO::AIO: unable to initialise eio library");
604
605	/* atfork child called in fifo order, so before eio's handler */
606	X_THREAD_ATFORK (0, 0, atfork_child);
607	}	1069	}
608		1070
609	void	1071	void
		1072	reinit ()
		1073	PROTOTYPE:
		1074
		1075	void
610	max_poll_reqs (int nreqs)	1076	max_poll_reqs (unsigned int nreqs)
611	PROTOTYPE: $	1077	PROTOTYPE: $
612	CODE:	1078	CODE:
613	eio_set_max_poll_reqs (nreqs);	1079	eio_set_max_poll_reqs (nreqs);
614		1080
615	void	1081	void
…		…
617	PROTOTYPE: $	1083	PROTOTYPE: $
618	CODE:	1084	CODE:
619	eio_set_max_poll_time (nseconds);	1085	eio_set_max_poll_time (nseconds);
620		1086
621	void	1087	void
622	min_parallel (int nthreads)	1088	min_parallel (unsigned int nthreads)
623	PROTOTYPE: $	1089	PROTOTYPE: $
624	CODE:	1090	CODE:
625	eio_set_min_parallel (nthreads);	1091	eio_set_min_parallel (nthreads);
626		1092
627	void	1093	void
628	max_parallel (int nthreads)	1094	max_parallel (unsigned int nthreads)
629	PROTOTYPE: $	1095	PROTOTYPE: $
630	CODE:	1096	CODE:
631	eio_set_max_parallel (nthreads);	1097	eio_set_max_parallel (nthreads);
632		1098
633	void	1099	void
634	max_idle (int nthreads)	1100	max_idle (unsigned int nthreads)
635	PROTOTYPE: $	1101	PROTOTYPE: $
636	CODE:	1102	CODE:
637	eio_set_max_idle (nthreads);	1103	eio_set_max_idle (nthreads);
638		1104
639	void	1105	void
		1106	idle_timeout (unsigned int seconds)
		1107	PROTOTYPE: $
		1108	CODE:
		1109	eio_set_idle_timeout (seconds);
		1110
		1111	void
640	max_outstanding (int maxreqs)	1112	max_outstanding (unsigned int maxreqs)
641	PROTOTYPE: $	1113	PROTOTYPE: $
642	CODE:	1114	CODE:
643	max_outstanding = maxreqs;	1115	max_outstanding = maxreqs;
644		1116
645	void	1117	void
646	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1118	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
647	PROTOTYPE: $$$;$
648	PPCODE:	1119	PPCODE:
649	{	1120	{
650	dREQ;	1121	dREQ;
651		1122
		1123	req->type = EIO_WD_OPEN;
		1124	req_set_path1 (req, pathname);
		1125
		1126	REQ_SEND;
		1127	}
		1128
		1129	void
		1130	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1131	PPCODE:
		1132	{
		1133	dREQ;
		1134
652	req->type = EIO_OPEN;	1135	req->type = EIO_OPEN;
653	req->sv1 = newSVsv (pathname);	1136	req_set_path1 (req, pathname);
654	req->ptr1 = SvPVbyte_nolen (req->sv1);
655	req->int1 = flags;	1137	req->int1 = flags;
656	req->int2 = mode;	1138	req->int2 = mode;
657		1139
658	REQ_SEND;	1140	REQ_SEND;
659	}	1141	}
660		1142
661	void	1143	void
662	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1144	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
663	PROTOTYPE: $;$
664	ALIAS:	1145	ALIAS:
665	aio_fsync = EIO_FSYNC	1146	aio_fsync = EIO_FSYNC
666	aio_fdatasync = EIO_FDATASYNC	1147	aio_fdatasync = EIO_FDATASYNC
		1148	aio_syncfs = EIO_SYNCFS
667	PPCODE:	1149	PPCODE:
668	{	1150	{
669	int fd = extract_fd (fh, 0);	1151	int fd = s_fileno_croak (fh, 0);
670	dREQ;	1152	dREQ;
671		1153
672	req->type = ix;	1154	req->type = ix;
673	req->sv1 = newSVsv (fh);	1155	req->sv1 = newSVsv (fh);
674	req->int1 = fd;	1156	req->int1 = fd;
675		1157
676	REQ_SEND (req);	1158	REQ_SEND;
677	}	1159	}
678		1160
679	void	1161	void
680	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1162	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
681	PROTOTYPE: $$$$;$
682	PPCODE:	1163	PPCODE:
683	{	1164	{
684	int fd = extract_fd (fh, 0);	1165	int fd = s_fileno_croak (fh, 0);
685	dREQ;	1166	dREQ;
686		1167
687	req->type = EIO_SYNC_FILE_RANGE;	1168	req->type = EIO_SYNC_FILE_RANGE;
688	req->sv1 = newSVsv (fh);	1169	req->sv1 = newSVsv (fh);
689	req->int1 = fd;	1170	req->int1 = fd;
690	req->offs = SvVAL64 (offset);	1171	req->offs = offset;
691	req->size = SvVAL64 (nbytes);	1172	req->size = nbytes;
692	req->int2 = flags;	1173	req->int2 = flags;
693		1174
694	REQ_SEND (req);	1175	REQ_SEND;
695	}	1176	}
696		1177
697	void	1178	void
698	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1179	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
699	PROTOTYPE: $;$
700	PPCODE:	1180	PPCODE:
701	{	1181	{
702	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1182	int fd = s_fileno_croak (fh, 0);
703	int fd = extract_fd (fh, 0);
704	dREQ;	1183	dREQ;
705		1184
706	if (close_pipe < 0)	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))
707	{	1204	{
708	int pipefd [2];	1205	int pipefd [2];
709		1206
		1207	if (
		1208	#ifdef _WIN32
		1209	_pipe (pipefd, 1, _O_BINARY) < 0
		1210	#else
710	if (pipe (pipefd) < 0	1211	pipe (pipefd) < 0
711	|| close (pipefd [1]) < 0
712	|| 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	)
713	abort (); /*D*/	1216	abort (); /*D*/
714		1217
715	close_pipe = pipefd [0];	1218	close_fd = pipefd [0];
716	}	1219	}
717		1220
718	req->type = EIO_DUP2;	1221	req->type = EIO_DUP2;
719	req->int1 = close_pipe;	1222	req->int1 = close_fd;
720	req->sv2 = newSVsv (fh);	1223	req->sv2 = newSVsv (fh);
721	req->int2 = fd;	1224	req->int2 = fd;
722		1225
723	REQ_SEND (req);	1226	REQ_SEND;
724	}	1227	}
725		1228
726	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
727	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)
728	ALIAS:	1247	ALIAS:
729	aio_read = EIO_READ	1248	aio_read = EIO_READ
730	aio_write = EIO_WRITE	1249	aio_write = EIO_WRITE
731	PROTOTYPE: $$$$$;$
732	PPCODE:	1250	PPCODE:
733	{	1251	{
734	STRLEN svlen;	1252	STRLEN svlen;
735	int fd = extract_fd (fh, ix == EIO_WRITE);	1253	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
736	char *svptr = SvPVbyte (data, svlen);	1254	char *svptr = SvPVbyte (data, svlen);
737	UV len = SvUV (length);	1255	UV len = SvUV (length);
738		1256
739	if (dataoffset < 0)	1257	if (dataoffset < 0)
740	dataoffset += svlen;	1258	dataoffset += svlen;
…		…
749	len = svlen - dataoffset;	1267	len = svlen - dataoffset;
750	}	1268	}
751	else	1269	else
752	{	1270	{
753	/* read: check type and grow scalar as necessary */	1271	/* read: check type and grow scalar as necessary */
754	SvUPGRADE (data, SVt_PV);	1272	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
755	svptr = SvGROW (data, len + dataoffset + 1);	1273	svptr = sv_grow (data, len + dataoffset + 1);
		1274	else if (SvCUR (data) < len + dataoffset)
		1275	croak ("length + dataoffset outside of scalar, and cannot grow");
756	}	1276	}
757		1277
758	{	1278	{
759	dREQ;	1279	dREQ;
760		1280
…		…
776	REQ_SEND;	1296	REQ_SEND;
777	}	1297	}
778	}	1298	}
779		1299
780	void	1300	void
781	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1301	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
782	PROTOTYPE: $$;$	1302	ALIAS:
		1303	aio_ioctl = EIO_IOCTL
		1304	aio_fcntl = EIO_FCNTL
783	PPCODE:	1305	PPCODE:
784	{	1306	{
785	SV *data;	1307	int fd = s_fileno_croak (fh, 0);
		1308	char *svptr;
		1309
		1310	if (SvPOK (arg) || !SvNIOK (arg))
		1311	{
		1312	STRLEN svlen;
		1313	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1314	#ifdef IOCPARM_LEN
		1315	STRLEN need = IOCPARM_LEN (request);
		1316	#else
		1317	STRLEN need = 256;
		1318	#endif
		1319
		1320	if (svlen < need)
		1321	svptr = SvGROW (arg, need);
		1322	}
		1323	else
		1324	svptr = (char *)SvIV (arg);
		1325
		1326	{
		1327	dREQ;
		1328
		1329	req->type = ix;
		1330	req->sv1 = newSVsv (fh);
		1331	req->int1 = fd;
		1332	req->int2 = (long)request;
		1333	req->sv2 = SvREFCNT_inc (arg);
		1334	req->ptr2 = svptr;
		1335
		1336	REQ_SEND;
		1337	}
		1338	}
		1339
		1340	void
		1341	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1342	ALIAS:
		1343	aio_readlink = EIO_READLINK
		1344	aio_realpath = EIO_REALPATH
		1345	PPCODE:
		1346	{
786	dREQ;	1347	dREQ;
787		1348
788	req->type = EIO_READLINK;	1349	req->type = ix;
789	req->sv1 = newSVsv (path);	1350	req_set_path1 (req, pathname);
790	req->ptr1 = SvPVbyte_nolen (req->sv1);
791		1351
792	REQ_SEND;	1352	REQ_SEND;
793	}	1353	}
794		1354
795	void	1355	void
796	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1356	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
797	PROTOTYPE: $$$$;$
798	PPCODE:	1357	PPCODE:
799	{	1358	{
800	int ifd = extract_fd (in_fh , 0);	1359	int ifd = s_fileno_croak (in_fh , 0);
801	int ofd = extract_fd (out_fh, 0);	1360	int ofd = s_fileno_croak (out_fh, 1);
802	dREQ;	1361	dREQ;
803		1362
804	req->type = EIO_SENDFILE;	1363	req->type = EIO_SENDFILE;
805	req->sv1 = newSVsv (out_fh);	1364	req->sv1 = newSVsv (out_fh);
806	req->int1 = ofd;	1365	req->int1 = ofd;
807	req->sv2 = newSVsv (in_fh);	1366	req->sv2 = newSVsv (in_fh);
808	req->int2 = ifd;	1367	req->int2 = ifd;
809	req->offs = SvVAL64 (in_offset);	1368	req->offs = in_offset;
810	req->size = length;	1369	req->size = length;
811		1370
812	REQ_SEND;	1371	REQ_SEND;
813	}	1372	}
814		1373
815	void	1374	void
816	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1375	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
817	PROTOTYPE: $$$;$
818	PPCODE:	1376	PPCODE:
819	{	1377	{
820	int fd = extract_fd (fh, 0);	1378	int fd = s_fileno_croak (fh, 0);
821	dREQ;	1379	dREQ;
822		1380
823	req->type = EIO_READAHEAD;	1381	req->type = EIO_READAHEAD;
824	req->sv1 = newSVsv (fh);	1382	req->sv1 = newSVsv (fh);
825	req->int1 = fd;	1383	req->int1 = fd;
826	req->offs = SvVAL64 (offset);	1384	req->offs = offset;
827	req->size = length;	1385	req->size = length;
828		1386
829	REQ_SEND;	1387	REQ_SEND;
830	}	1388	}
831		1389
832	void	1390	void
833	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1391	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
834	ALIAS:	1392	ALIAS:
835	aio_stat = EIO_STAT	1393	aio_stat = EIO_STAT
836	aio_lstat = EIO_LSTAT	1394	aio_lstat = EIO_LSTAT
		1395	aio_statvfs = EIO_STATVFS
837	PPCODE:	1396	PPCODE:
838	{	1397	{
839	dREQ;	1398	dREQ;
840		1399
841	req->sv1 = newSVsv (fh_or_path);	1400	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
842
843	if (SvPOK (req->sv1))
844	{
845	req->type = ix;
846	req->ptr1 = SvPVbyte_nolen (req->sv1);
847	}
848	else
849	{
850	req->type = EIO_FSTAT;
851	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
852	}
853		1401
854	REQ_SEND;	1402	REQ_SEND;
855	}	1403	}
856		1404
		1405	UV
		1406	major (UV dev)
		1407	ALIAS:
		1408	minor = 1
		1409	CODE:
		1410	RETVAL = ix ? major (dev) : minor (dev);
		1411	OUTPUT:
		1412	RETVAL
		1413
		1414	UV
		1415	makedev (UV maj, UV min)
		1416	CODE:
		1417	RETVAL = makedev (maj, min);
		1418	OUTPUT:
		1419	RETVAL
		1420
857	void	1421	void
858	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1422	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
859	PPCODE:	1423	PPCODE:
860	{	1424	{
861	dREQ;	1425	dREQ;
862		1426
863	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1427	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
864	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1428	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
865	req->sv1 = newSVsv (fh_or_path);	1429	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
866
867	if (SvPOK (req->sv1))
868	{
869	req->type = EIO_UTIME;
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871	}
872	else
873	{
874	req->type = EIO_FUTIME;
875	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
876	}
877		1430
878	REQ_SEND;	1431	REQ_SEND;
879	}	1432	}
880		1433
881	void	1434	void
882	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1435	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
883	PPCODE:	1436	PPCODE:
884	{	1437	{
885	dREQ;	1438	dREQ;
886		1439
887	req->sv1 = newSVsv (fh_or_path);
888	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1440	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
889		1441	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
890	if (SvPOK (req->sv1))
891	{
892	req->type = EIO_TRUNCATE;
893	req->ptr1 = SvPVbyte_nolen (req->sv1);
894	}
895	else
896	{
897	req->type = EIO_FTRUNCATE;
898	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
899	}
900		1442
901	REQ_SEND;	1443	REQ_SEND;
902	}	1444	}
903		1445
904	void	1446	void
905	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1447	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
906	ALIAS:
907	aio_chmod = EIO_CHMOD
908	aio_mkdir = EIO_MKDIR
909	PPCODE:	1448	PPCODE:
910	{	1449	{
911	dREQ;	1450	dREQ;
912		1451
913	req->int2 = mode;	1452	req->int2 = mode;
914	req->sv1 = newSVsv (fh_or_path);	1453	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
915
916	if (SvPOK (req->sv1))
917	{
918	req->type = ix;
919	req->ptr1 = SvPVbyte_nolen (req->sv1);
920	}
921	else
922	{
923	req->type = EIO_FCHMOD;
924	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
925	}
926		1454
927	REQ_SEND;	1455	REQ_SEND;
928	}	1456	}
929		1457
930	void	1458	void
931	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1459	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
932	PPCODE:	1460	PPCODE:
933	{	1461	{
934	dREQ;	1462	dREQ;
935		1463
936	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1464	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
937	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1465	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
938	req->sv1 = newSVsv (fh_or_path);	1466	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
939
940	if (SvPOK (req->sv1))
941	{
942	req->type = EIO_CHOWN;
943	req->ptr1 = SvPVbyte_nolen (req->sv1);
944	}
945	else
946	{
947	req->type = EIO_FCHOWN;
948	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
949	}
950		1467
951	REQ_SEND;	1468	REQ_SEND;
952	}	1469	}
953		1470
954	void	1471	void
955	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1472	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
956	PPCODE:	1473	PPCODE:
957	{	1474	{
958	dREQ;	1475	dREQ;
959		1476
960	req->type = EIO_READDIR;	1477	req->type = EIO_READDIR;
961	req->sv1 = newSVsv (pathname);
962	req->ptr1 = SvPVbyte_nolen (req->sv1);
963	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1478	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
964		1479
965	if (flags & EIO_READDIR_DENTS)	1480	if (flags & EIO_READDIR_DENTS)
966	req->int1 |= EIO_READDIR_CUSTOM2;	1481	req->int1 |= EIO_READDIR_CUSTOM2;
967		1482
		1483	req_set_path1 (req, pathname);
		1484
968	REQ_SEND;	1485	REQ_SEND;
969	}	1486	}
970		1487
971	void	1488	void
		1489	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1490	PPCODE:
		1491	{
		1492	dREQ;
		1493
		1494	req->type = EIO_MKDIR;
		1495	req->int2 = mode;
		1496	req_set_path1 (req, pathname);
		1497
		1498	REQ_SEND;
		1499	}
		1500
		1501	void
972	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1502	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
973	ALIAS:	1503	ALIAS:
974	aio_unlink = EIO_UNLINK	1504	aio_unlink = EIO_UNLINK
975	aio_rmdir = EIO_RMDIR	1505	aio_rmdir = EIO_RMDIR
976	aio_readdir = EIO_READDIR	1506	aio_readdir = EIO_READDIR
977	PPCODE:	1507	PPCODE:
978	{	1508	{
979	dREQ;	1509	dREQ;
980		1510
981	req->type = ix;	1511	req->type = ix;
982	req->sv1 = newSVsv (pathname);	1512	req_set_path1 (req, pathname);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);
984		1513
985	REQ_SEND;	1514	REQ_SEND;
986	}	1515	}
987		1516
988	void	1517	void
989	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1518	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
990	ALIAS:	1519	ALIAS:
991	aio_link = EIO_LINK	1520	aio_link = EIO_LINK
992	aio_symlink = EIO_SYMLINK	1521	aio_symlink = EIO_SYMLINK
993	aio_rename = EIO_RENAME	1522	aio_rename = EIO_RENAME
994	PPCODE:	1523	PPCODE:
995	{	1524	{
		1525	eio_wd wd2 = 0;
996	dREQ;	1526	dREQ;
997		1527
998	req->type = ix;	1528	req->type = ix;
999	req->sv1 = newSVsv (oldpath);	1529	req_set_path1 (req, oldpath);
1000	req->ptr1 = SvPVbyte_nolen (req->sv1);	1530	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1001	req->sv2 = newSVsv (newpath);	1531	req->int3 = (long)wd2;
1002	req->ptr2 = SvPVbyte_nolen (req->sv2);
1003		1532
1004	REQ_SEND;	1533	REQ_SEND;
1005	}	1534	}
1006		1535
1007	void	1536	void
1008	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1537	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1009	PPCODE:	1538	PPCODE:
1010	{	1539	{
1011	dREQ;	1540	dREQ;
1012		1541
1013	req->type = EIO_MKNOD;	1542	req->type = EIO_MKNOD;
1014	req->sv1 = newSVsv (pathname);
1015	req->ptr1 = SvPVbyte_nolen (req->sv1);
1016	req->int2 = (mode_t)mode;	1543	req->int2 = (mode_t)mode;
1017	req->offs = dev;	1544	req->offs = dev;
		1545	req_set_path1 (req, pathname);
1018		1546
1019	REQ_SEND;	1547	REQ_SEND;
1020	}	1548	}
1021		1549
1022	void	1550	void
		1551	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
		1552	ALIAS:
		1553	aio_mtouch = EIO_MTOUCH
		1554	aio_msync = EIO_MSYNC
		1555	PPCODE:
		1556	{
		1557	STRLEN svlen;
		1558	char *svptr = SvPVbyte (data, svlen);
		1559	UV len = SvUV (length);
		1560
		1561	if (offset < 0)
		1562	offset += svlen;
		1563
		1564	if (offset < 0 || offset > svlen)
		1565	croak ("offset outside of scalar");
		1566
		1567	if (!SvOK (length) || len + offset > svlen)
		1568	len = svlen - offset;
		1569
		1570	{
		1571	dREQ;
		1572
		1573	req->type = ix;
		1574	req->sv2 = SvREFCNT_inc (data);
		1575	req->ptr2 = (char *)svptr + offset;
		1576	req->size = len;
		1577	req->int1 = flags;
		1578
		1579	REQ_SEND;
		1580	}
		1581	}
		1582
		1583	void
		1584	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1585	PPCODE:
		1586	{
		1587	STRLEN svlen;
		1588	char *svptr = SvPVbyte (data, svlen);
		1589	UV len = SvUV (length);
		1590
		1591	if (offset < 0)
		1592	offset += svlen;
		1593
		1594	if (offset < 0 || offset > svlen)
		1595	croak ("offset outside of scalar");
		1596
		1597	if (!SvOK (length) || len + offset > svlen)
		1598	len = svlen - offset;
		1599
		1600	{
		1601	dREQ;
		1602
		1603	req->type = EIO_MLOCK;
		1604	req->sv2 = SvREFCNT_inc (data);
		1605	req->ptr2 = (char *)svptr + offset;
		1606	req->size = len;
		1607
		1608	REQ_SEND;
		1609	}
		1610	}
		1611
		1612	void
		1613	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1614	PPCODE:
		1615	{
		1616	dREQ;
		1617
		1618	req->type = EIO_MLOCKALL;
		1619	req->int1 = flags;
		1620
		1621	REQ_SEND;
		1622	}
		1623
		1624	void
		1625	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1626	PPCODE:
		1627	{
		1628	int fd = s_fileno_croak (fh, 0);
		1629	dREQ;
		1630
		1631	req->type = EIO_CUSTOM;
		1632	req->sv1 = newSVsv (fh);
		1633	req->int1 = fd;
		1634
		1635	req->feed = fiemap;
		1636	#if HAVE_FIEMAP
		1637	/* keep our fingers crossed that the next two types are 64 bit */
		1638	req->offs = start;
		1639	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1640	req->int2 = flags;
		1641	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1642	#endif
		1643
		1644	REQ_SEND;
		1645	}
		1646
		1647	void
1023	aio_busy (double delay, SV *callback=&PL_sv_undef)	1648	aio_busy (double delay, SV *callback = &PL_sv_undef)
1024	PPCODE:	1649	PPCODE:
1025	{	1650	{
1026	dREQ;	1651	dREQ;
1027		1652
1028	req->type = EIO_BUSY;	1653	req->type = EIO_BUSY;
…		…
1030		1655
1031	REQ_SEND;	1656	REQ_SEND;
1032	}	1657	}
1033		1658
1034	void	1659	void
1035	aio_group (SV *callback=&PL_sv_undef)	1660	aio_group (SV *callback = &PL_sv_undef)
1036	PROTOTYPE: ;$
1037	PPCODE:	1661	PPCODE:
1038	{	1662	{
1039	dREQ;	1663	dREQ;
1040		1664
1041	req->type = EIO_GROUP;	1665	req->type = EIO_GROUP;
1042		1666
		1667	PUTBACK;
1043	req_submit (req);	1668	req_submit (req);
		1669	SPAGAIN;
		1670
1044	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1671	XPUSHs (req_sv (req, aio_grp_stash));
1045	}	1672	}
1046		1673
1047	void	1674	void
1048	aio_nop (SV *callback=&PL_sv_undef)	1675	aio_nop (SV *callback = &PL_sv_undef)
1049	ALIAS:	1676	ALIAS:
1050	aio_nop = EIO_NOP	1677	aio_nop = EIO_NOP
1051	aio_sync = EIO_SYNC	1678	aio_sync = EIO_SYNC
1052	PPCODE:	1679	PPCODE:
1053	{	1680	{
…		…
1057		1684
1058	REQ_SEND;	1685	REQ_SEND;
1059	}	1686	}
1060		1687
1061	int	1688	int
1062	aioreq_pri (int pri = 0)	1689	aioreq_pri (int pri = NO_INIT)
1063	PROTOTYPE: ;$
1064	CODE:	1690	CODE:
1065	RETVAL = next_pri;	1691	RETVAL = next_pri;
1066	if (items > 0)	1692	if (items > 0)
1067	{	1693	{
1068	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1694	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1080	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1706	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1081	next_pri = nice;	1707	next_pri = nice;
1082		1708
1083	void	1709	void
1084	flush ()	1710	flush ()
1085	PROTOTYPE:
1086	CODE:	1711	CODE:
1087	while (eio_nreqs ())	1712	while (eio_nreqs ())
1088	{	1713	{
1089	poll_wait ();	1714	poll_wait ();
1090	poll_cb ();	1715	poll_cb ();
1091	}	1716	}
1092		1717
1093	int	1718	int
1094	poll()	1719	poll ()
1095	PROTOTYPE:
1096	CODE:	1720	CODE:
1097	poll_wait ();	1721	poll_wait ();
1098	RETVAL = poll_cb ();	1722	RETVAL = poll_cb ();
1099	OUTPUT:	1723	OUTPUT:
1100	RETVAL	1724	RETVAL
1101		1725
1102	int	1726	int
1103	poll_fileno()	1727	poll_fileno ()
1104	PROTOTYPE:
1105	CODE:	1728	CODE:
1106	RETVAL = respipe [0];	1729	RETVAL = s_epipe_fd (&respipe);
1107	OUTPUT:	1730	OUTPUT:
1108	RETVAL	1731	RETVAL
1109		1732
1110	int	1733	int
1111	poll_cb(...)	1734	poll_cb (...)
1112	PROTOTYPE:	1735	PROTOTYPE:
1113	CODE:	1736	CODE:
1114	RETVAL = poll_cb ();	1737	RETVAL = poll_cb ();
1115	OUTPUT:	1738	OUTPUT:
1116	RETVAL	1739	RETVAL
1117		1740
1118	void	1741	void
1119	poll_wait()	1742	poll_wait ()
1120	PROTOTYPE:
1121	CODE:	1743	CODE:
1122	poll_wait ();	1744	poll_wait ();
1123		1745
1124	int	1746	int
1125	nreqs()	1747	nreqs ()
1126	PROTOTYPE:
1127	CODE:	1748	CODE:
1128	RETVAL = eio_nreqs ();	1749	RETVAL = eio_nreqs ();
1129	OUTPUT:	1750	OUTPUT:
1130	RETVAL	1751	RETVAL
1131		1752
1132	int	1753	int
1133	nready()	1754	nready ()
1134	PROTOTYPE:
1135	CODE:	1755	CODE:
1136	RETVAL = eio_nready ();	1756	RETVAL = eio_nready ();
1137	OUTPUT:	1757	OUTPUT:
1138	RETVAL	1758	RETVAL
1139		1759
1140	int	1760	int
1141	npending()	1761	npending ()
1142	PROTOTYPE:
1143	CODE:	1762	CODE:
1144	RETVAL = eio_npending ();	1763	RETVAL = eio_npending ();
1145	OUTPUT:	1764	OUTPUT:
1146	RETVAL	1765	RETVAL
1147		1766
1148	int	1767	int
1149	nthreads()	1768	nthreads ()
1150	PROTOTYPE:
1151	CODE:	1769	CODE:
1152	RETVAL = eio_nthreads ();	1770	RETVAL = eio_nthreads ();
1153	OUTPUT:	1771	OUTPUT:
1154	RETVAL	1772	RETVAL
1155		1773
		1774	int
		1775	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1776	CODE:
		1777	RETVAL = posix_fadvise (fh, offset, length, advice);
		1778	OUTPUT:
		1779	RETVAL
		1780
		1781	IV
		1782	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1783	CODE:
		1784	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1785	OUTPUT:
		1786	RETVAL
		1787
		1788	void
		1789	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1790	PPCODE:
		1791	sv_unmagic (scalar, MMAP_MAGIC);
		1792	{
		1793	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1794	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1795	if (addr == (void *)-1)
		1796	XSRETURN_NO;
		1797
		1798	sv_force_normal (scalar);
		1799
		1800	/* we store the length in mg_obj, as namlen is I32 :/ */
		1801	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1802	->mg_obj = (SV *)length;
		1803
		1804	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1805
		1806	if (!(prot & PROT_WRITE))
		1807	SvREADONLY_on (scalar);
		1808
		1809	if (SvLEN (scalar))
		1810	Safefree (SvPVX (scalar));
		1811
		1812	SvPVX (scalar) = (char *)addr;
		1813	SvCUR_set (scalar, length);
		1814	SvLEN_set (scalar, 0);
		1815	SvPOK_only (scalar);
		1816
		1817	XSRETURN_YES;
		1818	}
		1819
		1820	void
		1821	munmap (SV *scalar)
		1822	CODE:
		1823	sv_unmagic (scalar, MMAP_MAGIC);
		1824
		1825	int
		1826	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1827	ALIAS:
		1828	mprotect = 1
		1829	CODE:
		1830	{
		1831	STRLEN svlen;
		1832	void *addr = SvPVbyte (scalar, svlen);
		1833	STRLEN len = SvUV (length);
		1834
		1835	if (offset < 0)
		1836	offset += svlen;
		1837
		1838	if (offset < 0 || offset > svlen)
		1839	croak ("offset outside of scalar");
		1840
		1841	if (!SvOK (length) || len + offset > svlen)
		1842	len = svlen - offset;
		1843
		1844	addr = (void *)(((intptr_t)addr) + offset);
		1845	eio_page_align (&addr, &len);
		1846
		1847	switch (ix)
		1848	{
		1849	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1850	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1851	}
		1852	}
		1853	OUTPUT:
		1854	RETVAL
		1855
		1856	int
		1857	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1858	CODE:
		1859	{
		1860	STRLEN svlen;
		1861	void *addr = SvPVbyte (scalar, svlen);
		1862	size_t len = SvUV (length);
		1863
		1864	if (offset < 0)
		1865	offset += svlen;
		1866
		1867	if (offset < 0 || offset > svlen)
		1868	croak ("offset outside of scalar");
		1869
		1870	if (!SvOK (length) || len + offset > svlen)
		1871	len = svlen - offset;
		1872
		1873	addr = (void *)(((intptr_t)addr) + offset);
		1874	eio_page_align (&addr, &len);
		1875	#if _POSIX_MEMLOCK_RANGE
		1876	RETVAL = munlock (addr, len);
		1877	#else
		1878	RETVAL = EIO_ENOSYS ();
		1879	#endif
		1880	}
		1881	OUTPUT:
		1882	RETVAL
		1883
		1884	int
		1885	munlockall ()
		1886	CODE:
		1887	#if _POSIX_MEMLOCK
		1888	munlockall ();
		1889	#else
		1890	RETVAL = EIO_ENOSYS ();
		1891	#endif
		1892	OUTPUT:
		1893	RETVAL
		1894
		1895	int
		1896	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1897	CODE:
		1898	{
		1899	#if HAVE_LINUX_SPLICE
		1900	loff_t off_in_, off_out_;
		1901	RETVAL = splice (
		1902	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1903	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1904	length, flags
		1905	);
		1906	#else
		1907	RETVAL = EIO_ENOSYS ();
		1908	#endif
		1909	}
		1910	OUTPUT:
		1911	RETVAL
		1912
		1913	int
		1914	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1915	CODE:
		1916	#if HAVE_LINUX_SPLICE
		1917	RETVAL = tee (rfh, wfh, length, flags);
		1918	#else
		1919	RETVAL = EIO_ENOSYS ();
		1920	#endif
		1921	OUTPUT:
		1922	RETVAL
		1923
		1924	int
		1925	pipesize (aio_rfd rfh, int new_size = -1)
		1926	PROTOTYPE: $;$
		1927	CODE:
		1928	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1929	if (new_size >= 0)
		1930	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1931	else
		1932	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1933	#else
		1934	errno = ENOSYS;
		1935	RETVAL = -1;
		1936	#endif
		1937	OUTPUT:
		1938	RETVAL
		1939
		1940	void
		1941	pipe2 (int flags = 0)
		1942	PROTOTYPE: ;$
		1943	PPCODE:
		1944	{
		1945	int fd[2];
		1946	int res;
		1947
		1948	if (flags)
		1949	#if HAVE_PIPE2
		1950	res = pipe2 (fd, flags);
		1951	#else
		1952	res = (errno = ENOSYS, -1);
		1953	#endif
		1954	else
		1955	res = pipe (fd);
		1956
		1957	if (!res)
		1958	{
		1959	EXTEND (SP, 2);
		1960	PUSHs (newmortalFH (fd[0], O_RDONLY));
		1961	PUSHs (newmortalFH (fd[1], O_WRONLY));
		1962	}
		1963	}
		1964
1156	void _on_next_submit (SV *cb)	1965	void _on_next_submit (SV *cb)
1157	CODE:	1966	CODE:
1158	SvREFCNT_dec (on_next_submit);	1967	SvREFCNT_dec (on_next_submit);
1159	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1968	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1160		1969
1161	PROTOTYPES: DISABLE	1970	PROTOTYPES: DISABLE
1162		1971
		1972	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1973
		1974	BOOT:
		1975	{
		1976	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1977	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1978	}
		1979
		1980	void
		1981	DESTROY (SV *self)
		1982	CODE:
		1983	{
		1984	aio_wd wd = SvAIO_WD (self);
		1985	#if HAVE_AT
		1986	{
		1987	SV *callback = &PL_sv_undef;
		1988	dREQ; /* clobbers next_pri :/ */
		1989	next_pri = req->pri; /* restore next_pri */
		1990	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1991	req->type = EIO_WD_CLOSE;
		1992	req->wd = wd;
		1993	REQ_SEND;
		1994	}
		1995	#else
		1996	eio_wd_close_sync (wd);
		1997	#endif
		1998	}
		1999
1163	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2000	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1164		2001
1165	void	2002	void
1166	cancel (aio_req_ornot req)	2003	cancel (aio_req_ornot req)
1167	CODE:	2004	CODE:
1168	eio_cancel (req);	2005	eio_cancel (req);
1169		2006
1170	void	2007	void
1171	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2008	cb (aio_req_ornot req, SV *callback = NO_INIT)
1172	PPCODE:	2009	PPCODE:
1173	{	2010	{
1174	if (GIMME_V != G_VOID)	2011	if (GIMME_V != G_VOID)
1175	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2012	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1176		2013
…		…
1241	limit (aio_req grp, int limit)	2078	limit (aio_req grp, int limit)
1242	CODE:	2079	CODE:
1243	eio_grp_limit (grp, limit);	2080	eio_grp_limit (grp, limit);
1244		2081
1245	void	2082	void
1246	feed (aio_req grp, SV *callback=&PL_sv_undef)	2083	feed (aio_req grp, SV *callback = &PL_sv_undef)
1247	CODE:	2084	CODE:
1248	{	2085	{
1249	SvREFCNT_dec (grp->sv2);	2086	SvREFCNT_dec (grp->sv2);
1250	grp->sv2 = newSVsv (callback);	2087	grp->sv2 = newSVsv (callback);
1251	grp->feed = aio_grp_feed;	2088	grp->feed = aio_grp_feed;

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