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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.125 by root, Thu Jun 19 09:05:43 2008 UTC vs.
Revision 1.233 by root, Thu Jun 25 13:34:28 2015 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. on't complain if this fails for you.
		27	*/
		28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		29	# include <linux/fs.h>
		30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
		32	# include <linux/fiemap.h>
		33	# define HAVE_FIEMAP 1
		34	# endif
		35	#endif
		36
18	/* perl namespace pollution */	37	/* perl namespace pollution */
19	#undef VERSION	38	#undef VERSION
20
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
83	#endif
84		84
85	static HV *stash;	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
		93	#endif
		94
		95	/*****************************************************************************/
		96
		97	#if __GNUC__ >= 3
		98	# define expect(expr,value) __builtin_expect ((expr),(value))
		99	#else
		100	# define expect(expr,value) (expr)
		101	#endif
		102
		103	#define expect_false(expr) expect ((expr) != 0, 0)
		104	#define expect_true(expr) expect ((expr) != 0, 1)
		105
		106	/*****************************************************************************/
		107
86	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 */
87		111
88	#define AIO_REQ_KLASS "IO::AIO::REQ"	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
89	#define AIO_GRP_KLASS "IO::AIO::GRP"
90		113
91	#define EIO_REQ_MEMBERS \	114	#define EIO_REQ_MEMBERS \
92	SV *callback; \	115	SV *callback; \
93	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
94	STRLEN stroffset; \	118	STRLEN stroffset; \
95	SV *self;	119	SV *self;
96		120
97	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
98		122
		123	#include "libeio/config.h"
99	#include "libeio/eio.h"	124	#include "libeio/eio.h"
100		125
101	static int req_invoke (eio_req *req);	126	static int req_invoke (eio_req *req);
102	#define EIO_FINISH(req) req_invoke (req)	127	#define EIO_FINISH(req) req_invoke (req)
103	static void aio_grp_feed (eio_req *grp);
104	#define EIO_FEED(req) aio_grp_feed (req)
105	static void req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
106	#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	#include "def0.h"
		151
		152	#ifndef makedev
		153	# define makedev(maj,min) (((maj) << 8) | (min))
		154	#endif
		155	#ifndef major
		156	# define major(dev) ((dev) >> 8)
		157	#endif
		158	#ifndef minor
		159	# define minor(dev) ((dev) & 0xff)
		160	#endif
		161
		162	#if PAGESIZE <= 0
		163	# define PAGESIZE sysconf (_SC_PAGESIZE)
		164	#endif
		165
		166	/*****************************************************************************/
		167
		168	static void
		169	fiemap (eio_req *req)
		170	{
		171	req->result = -1;
		172
		173	#if HAVE_FIEMAP
		174	/* assume some c99 */
		175	struct fiemap *fiemap = 0;
		176	size_t end_offset;
		177	int count = req->int3;
		178
		179	req->flags |= EIO_FLAG_PTR1_FREE;
		180
		181	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		182	/* increase in 3.5kb steps */
		183	if (count < 0)
		184	count = 8;
		185
		186	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		187	errno = ENOMEM;
		188	if (!fiemap)
		189	return;
		190
		191	req->ptr1 = fiemap;
		192
		193	fiemap->fm_start = req->offs;
		194	fiemap->fm_length = req->size;
		195	fiemap->fm_flags = req->int2;
		196	fiemap->fm_extent_count = count;
		197
		198	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		199	return;
		200
		201	if (req->int3 >= 0 /* not autosizing */
		202	|| !fiemap->fm_mapped_extents /* no more extents */
		203	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		204	goto done;
		205
		206	/* else we have to loop -
		207	* it would be tempting (actually I tried that first) to just query the
		208	* number of extents needed, but linux often feels like not returning all
		209	* extents, without telling us it left any out. this complicates
		210	* this quite a bit.
		211	*/
		212
		213	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		214
		215	for (;;)
		216	{
		217	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		218	char scratch[3072];
		219	struct fiemap *incmap = (struct fiemap *)scratch;
		220
		221	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		222	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		223	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		224	incmap->fm_flags = fiemap->fm_flags;
		225	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		226
		227	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		228	return;
		229
		230	if (!incmap->fm_mapped_extents)
		231	goto done;
		232
		233	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		234	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		235	errno = ENOMEM;
		236	if (!fiemap)
		237	return;
		238
		239	req->ptr1 = fiemap;
		240
		241	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		242	{
		243	struct fiemap_extent *e = incmap->fm_extents + count;
		244
		245	if (e->fe_logical + e->fe_length >= end_offset)
		246	goto done;
		247
		248	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		249
		250	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		251	goto done;
		252
		253	}
		254	}
		255
		256	done:
		257	req->result = 0;
		258
		259	#else
		260	errno = ENOSYS;
		261	#endif
		262	}
		263
		264	/*****************************************************************************/
107		265
108	enum {	266	enum {
109	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
110	};	268	};
111		269
112	#include "libeio/eio.c"
113
114	typedef eio_req *aio_req;	270	typedef eio_req *aio_req;
115	typedef eio_req *aio_req_ornot;	271	typedef eio_req *aio_req_ornot;
		272	typedef eio_wd aio_wd;
116		273
117	static SV *on_next_submit;	274	static SV *on_next_submit;
118	static int next_pri = EIO_PRI_DEFAULT;	275	static int next_pri = EIO_PRI_DEFAULT;
119	static int max_outstanding;	276	static int max_outstanding;
120		277
121	static int respipe_osf [2], respipe [2] = { -1, -1 };	278	static s_epipe respipe;
122		279
123	static void req_destroy (aio_req req);	280	static void req_destroy (aio_req req);
124	static void req_cancel (aio_req req);	281	static void req_cancel (aio_req req);
125		282
126	static void want_poll (void)	283	static void
		284	want_poll (void)
127	{	285	{
128	/* write a dummy byte to the pipe so fh becomes ready */	286	/* write a dummy byte to the pipe so fh becomes ready */
129	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	287	s_epipe_signal (&respipe);
130	}	288	}
131		289
132	static void done_poll (void)	290	static void
		291	done_poll (void)
133	{	292	{
134	/* read any signals sent by the worker threads */	293	/* read any signals sent by the worker threads */
135	char buf [4];	294	s_epipe_drain (&respipe);
136	while (respipe_read (respipe [0], buf, 4) == 4)
137	;
138	}	295	}
139		296
140	/* must be called at most once */	297	/* must be called at most once */
141	static SV *req_sv (aio_req req, const char *klass)	298	static SV *
		299	req_sv (aio_req req, HV *stash)
142	{	300	{
143	if (!req->self)	301	if (!req->self)
144	{	302	{
145	req->self = (SV *)newHV ();	303	req->self = (SV *)newHV ();
146	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	304	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
147	}	305	}
148		306
149	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	307	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
150	}	308	}
151		309
152	static aio_req SvAIO_REQ (SV *sv)	310	static SV *
		311	newSVaio_wd (aio_wd wd)
		312	{
		313	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		314	}
		315
		316	static aio_req
		317	SvAIO_REQ (SV *sv)
153	{	318	{
154	MAGIC *mg;	319	MAGIC *mg;
155		320
156	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	321	if (!SvROK (sv)
		322	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		323	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		324	&& SvSTASH (SvRV (sv)) != aio_req_stash
		325	&& !sv_derived_from (sv, "IO::AIO::REQ")))
157	croak ("object of class " AIO_REQ_KLASS " expected");	326	croak ("object of class IO::AIO::REQ expected");
158		327
159	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	328	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
160		329
161	return mg ? (aio_req)mg->mg_ptr : 0;	330	return mg ? (aio_req)mg->mg_ptr : 0;
162	}	331	}
163		332
		333	static aio_wd
		334	SvAIO_WD (SV *sv)
		335	{
		336	if (!SvROK (sv)
		337	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		338	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		339	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		340
		341	return (aio_wd)(long)SvIVX (SvRV (sv));
		342	}
		343
		344	static SV *
		345	newmortalFH (int fd, int flags)
		346	{
		347	if (fd < 0)
		348	return &PL_sv_undef;
		349
		350	GV *gv = (GV *)sv_newmortal ();
		351	char sym[64];
		352	int symlen;
		353
		354	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		355	gv_init (gv, aio_stash, sym, symlen, 0);
		356
		357	symlen = snprintf (
		358	sym,
		359	sizeof (sym),
		360	"%s&=%d",
		361	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		362	fd
		363	);
		364
		365	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		366	? (SV *)gv : &PL_sv_undef;
		367	}
		368
		369	static void
164	static void aio_grp_feed (aio_req grp)	370	aio_grp_feed (aio_req grp)
165	{	371	{
166	if (grp->sv2 && SvOK (grp->sv2))	372	if (grp->sv2 && SvOK (grp->sv2))
167	{	373	{
168	dSP;	374	dSP;
169		375
170	ENTER;	376	ENTER;
171	SAVETMPS;	377	SAVETMPS;
172	PUSHMARK (SP);	378	PUSHMARK (SP);
173	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	379	XPUSHs (req_sv (grp, aio_grp_stash));
174	PUTBACK;	380	PUTBACK;
175	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	381	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
176	SPAGAIN;	382	SPAGAIN;
177	FREETMPS;	383	FREETMPS;
178	LEAVE;	384	LEAVE;
179	}	385	}
180	}	386	}
181		387
		388	static void
182	static void req_submit (eio_req *req)	389	req_submit (eio_req *req)
183	{	390	{
184	eio_submit (req);	391	eio_submit (req);
185		392
186	if (on_next_submit)	393	if (expect_false (on_next_submit))
187	{	394	{
188	dSP;	395	dSP;
189	SV *cb = sv_2mortal (on_next_submit);	396	SV *cb = sv_2mortal (on_next_submit);
190		397
191	on_next_submit = 0;	398	on_next_submit = 0;
…		…
194	PUTBACK;	401	PUTBACK;
195	call_sv (cb, G_DISCARD | G_EVAL);	402	call_sv (cb, G_DISCARD | G_EVAL);
196	}	403	}
197	}	404	}
198		405
		406	static int
199	static int req_invoke (eio_req *req)	407	req_invoke (eio_req *req)
200	{	408	{
201	dSP;
202
203	if (req->flags & FLAG_SV2_RO_OFF)	409	if (req->flags & FLAG_SV2_RO_OFF)
204	SvREADONLY_off (req->sv2);	410	SvREADONLY_off (req->sv2);
205		411
206	if (!EIO_CANCELLED (req) && SvOK (req->callback))	412	if (!EIO_CANCELLED (req) && req->callback)
207	{	413	{
		414	dSP;
		415	static SV *sv_result_cache; /* caches the result integer SV */
		416	SV *sv_result;
		417
208	ENTER;	418	ENTER;
209	SAVETMPS;	419	SAVETMPS;
210	PUSHMARK (SP);	420	PUSHMARK (SP);
211	EXTEND (SP, 1);	421	EXTEND (SP, 1);
212		422
		423	/* do not recreate the result IV from scratch each time */
		424	if (expect_true (sv_result_cache))
		425	{
		426	sv_result = sv_result_cache; sv_result_cache = 0;
		427	SvIV_set (sv_result, req->result);
		428	SvIOK_only (sv_result);
		429	}
		430	else
		431	{
		432	sv_result = newSViv (req->result);
		433	SvREADONLY_on (sv_result);
		434	}
		435
213	switch (req->type)	436	switch (req->type)
214	{	437	{
		438	case EIO_WD_OPEN:
		439	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		440	break;
		441
215	case EIO_READDIR:	442	case EIO_READDIR:
216	{	443	{
217	SV *rv = &PL_sv_undef;	444	SV *rv = &PL_sv_undef;
218		445
219	if (req->result >= 0)	446	if (req->result >= 0)
220	{	447	{
221	int i;	448	int i;
222	char *buf = req->ptr2;	449	char *names = (char *)req->ptr2;
		450	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
223	AV *av = newAV ();	451	AV *av = newAV ();
224		452
225	av_extend (av, req->result - 1);	453	av_extend (av, req->result - 1);
226		454
227	for (i = 0; i < req->result; ++i)	455	for (i = 0; i < req->result; ++i)
228	{	456	{
229	SV *sv = newSVpv (buf, 0);	457	if (req->int1 & EIO_READDIR_DENTS)
		458	{
		459	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
230		460
		461	if (req->int1 & EIO_READDIR_CUSTOM2)
		462	{
		463	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		464	AV *avent = newAV ();
		465
		466	av_extend (avent, 2);
		467
		468	if (!sv_type [ent->type])
		469	{
		470	sv_type [ent->type] = newSViv (ent->type);
		471	SvREADONLY_on (sv_type [ent->type]);
		472	}
		473
		474	av_store (avent, 0, namesv);
		475	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		476	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		477
		478	av_store (av, i, newRV_noinc ((SV *)avent));
		479	}
		480	else
231	av_store (av, i, sv);	481	av_store (av, i, namesv);
		482
		483	++ent;
		484	}
		485	else
		486	{
		487	SV *name = newSVpv (names, 0);
		488	av_store (av, i, name);
232	buf += SvCUR (sv) + 1;	489	names += SvCUR (name) + 1;
		490	}
233	}	491	}
234		492
235	rv = sv_2mortal (newRV_noinc ((SV *)av));	493	rv = sv_2mortal (newRV_noinc ((SV *)av));
236	}	494	}
237		495
238	PUSHs (rv);	496	PUSHs (rv);
		497
		498	if (req->int1 & EIO_READDIR_CUSTOM1)
		499	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
239	}	500	}
240	break;	501	break;
241		502
242	case EIO_OPEN:	503	case EIO_OPEN:
		504	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		505	break;
		506
		507	case EIO_STATVFS:
		508	case EIO_FSTATVFS:
243	{	509	{
244	/* convert fd to fh */
245	SV *fh = &PL_sv_undef;	510	SV *rv = &PL_sv_undef;
246		511
		512	#ifndef _WIN32
247	if (req->result >= 0)	513	if (req->result >= 0)
248	{	514	{
		515	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
249	GV *gv = (GV *)sv_newmortal ();	516	HV *hv = newHV ();
250	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	517	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
251	char sym [64];	518	* chooses to make it a struct.
252	int symlen;
253		519	*/
254	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	520	unsigned long fsid = 0;
255	gv_init (gv, stash, sym, symlen, 0);	521	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
256		522
257	symlen = snprintf (	523	rv = sv_2mortal (newRV_noinc ((SV *)hv));
258	sym,
259	sizeof (sym),
260	"%s&=%d",
261	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
262	req->result
263	);
264		524
265	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	525	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
266	fh = (SV *)gv;	526	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		527	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		528	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		529	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		530	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		531	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		532	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		533	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		534	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		535	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
267	}	536	}
		537	#endif
268		538
269	PUSHs (fh);	539	PUSHs (rv);
270	}	540	}
		541
271	break;	542	break;
272		543
273	case EIO_GROUP:	544	case EIO_GROUP:
274	req->int1 = 2; /* mark group as finished */	545	req->int1 = 2; /* mark group as finished */
275		546
…		…
287	case EIO_NOP:	558	case EIO_NOP:
288	case EIO_BUSY:	559	case EIO_BUSY:
289	break;	560	break;
290		561
291	case EIO_READLINK:	562	case EIO_READLINK:
		563	case EIO_REALPATH:
292	if (req->result > 0)	564	if (req->result > 0)
293	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	565	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
294	break;	566	break;
295		567
296	case EIO_STAT:	568	case EIO_STAT:
297	case EIO_LSTAT:	569	case EIO_LSTAT:
298	case EIO_FSTAT:	570	case EIO_FSTAT:
299	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	571	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		572
300	PL_laststatval = req->result;	573	if (!(PL_laststatval = req->result))
		574	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
301	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	575	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
302	PUSHs (sv_2mortal (newSViv (req->result)));	576
		577	PUSHs (sv_result);
303	break;	578	break;
304		579
		580	case EIO_SEEK:
		581	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		582	break;
		583
305	case EIO_READ:	584	case EIO_READ:
		585	{
306	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	586	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
307	*SvEND (req->sv2) = 0;	587	*SvEND (req->sv2) = 0;
308	PUSHs (sv_2mortal (newSViv (req->result)));	588	SvPOK_only (req->sv2);
		589	SvSETMAGIC (req->sv2);
		590	PUSHs (sv_result);
		591	}
309	break;	592	break;
310		593
311	case EIO_DUP2:	594	case EIO_CUSTOM:
		595	if (req->feed == fiemap)
		596	{
		597	#if HAVE_FIEMAP
		598	if (!req->result)
		599	{
		600	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		601
		602	if (fiemap->fm_extent_count)
		603	{
		604	AV *av = newAV ();
		605	int i;
		606
		607	while (fiemap->fm_mapped_extents)
		608	{
		609	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		610	AV *ext_av = newAV ();
		611
		612	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		613	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		614	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		615	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		616
		617	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		618	}
		619
		620	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		621	}
		622	else
		623	{
		624	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		625	PUSHs (sv_result);
		626	}
		627	}
		628	#endif
		629	}
		630	else
		631	PUSHs (sv_result);
		632	break;
		633
		634	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
312	if (req->result > 0)	635	if (req->result > 0)
313	req->result = 0;	636	SvIV_set (sv_result, 0);
314	/* FALLTHROUGH */	637	/* FALLTHROUGH */
315		638
316	default:	639	default:
317	PUSHs (sv_2mortal (newSViv (req->result)));	640	PUSHs (sv_result);
318	break;	641	break;
319	}	642	}
320		643
321	errno = req->errorno;	644	errno = req->errorno;
322		645
323	PUTBACK;	646	PUTBACK;
324	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	647	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
325	SPAGAIN;	648	SPAGAIN;
326		649
		650	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		651	SvREFCNT_dec (sv_result);
		652	else
		653	sv_result_cache = sv_result;
		654
327	FREETMPS;	655	FREETMPS;
328	LEAVE;	656	LEAVE;
329		657
330	PUTBACK;	658	PUTBACK;
331	}	659	}
332		660
333	return !!SvTRUE (ERRSV);	661	return !!SvTRUE (ERRSV);
334	}	662	}
335		663
		664	static void
336	static void req_destroy (aio_req req)	665	req_destroy (aio_req req)
337	{	666	{
338	if (req->self)	667	if (req->self)
339	{	668	{
340	sv_unmagic (req->self, PERL_MAGIC_ext);	669	sv_unmagic (req->self, PERL_MAGIC_ext);
341	SvREFCNT_dec (req->self);	670	SvREFCNT_dec (req->self);
342	}	671	}
343		672
344	SvREFCNT_dec (req->sv1);	673	SvREFCNT_dec (req->sv1);
345	SvREFCNT_dec (req->sv2);	674	SvREFCNT_dec (req->sv2);
		675	SvREFCNT_dec (req->sv3);
		676	SvREFCNT_dec (req->sv4);
346	SvREFCNT_dec (req->callback);	677	SvREFCNT_dec (req->callback);
347		678
348	Safefree (req);	679	free (req);
349	}	680	}
350		681
		682	static void
351	static void req_cancel_subs (aio_req grp)	683	req_cancel_subs (aio_req grp)
352	{	684	{
353	aio_req sub;
354
355	if (grp->type != EIO_GROUP)	685	if (grp->type != EIO_GROUP)
356	return;	686	return;
357		687
358	SvREFCNT_dec (grp->sv2);	688	SvREFCNT_dec (grp->sv2);
359	grp->sv2 = 0;	689	grp->sv2 = 0;
360		690
361	eio_grp_cancel (grp);	691	eio_grp_cancel (grp);
362	}	692	}
363		693
364	#ifdef USE_SOCKETS_AS_HANDLES	694	static void ecb_cold
365	# define TO_SOCKET(x) (win32_get_osfhandle (x))	695	create_respipe (void)
366	#else	696	{
367	# define TO_SOCKET(x) (x)	697	if (s_epipe_renew (&respipe))
368	#endif	698	croak ("IO::AIO: unable to initialize result pipe");
		699	}
369		700
370	static void	701	static void
371	create_respipe (void)	702	poll_wait (void)
372	{	703	{
373	int old_readfd = respipe [0];
374
375	if (respipe [1] >= 0)
376	respipe_close (TO_SOCKET (respipe [1]));
377
378	#ifdef _WIN32
379	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
380	#else
381	if (pipe (respipe))
382	#endif
383	croak ("unable to initialize result pipe");
384
385	if (old_readfd >= 0)
386	{
387	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
388	croak ("unable to initialize result pipe(2)");
389
390	respipe_close (respipe [0]);
391	respipe [0] = old_readfd;
392	}
393
394	#ifdef _WIN32
395	int arg = 1;
396	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
397	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
398	#else
399	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
400	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
401	#endif
402	croak ("unable to initialize result pipe(3)");
403
404	respipe_osf [0] = TO_SOCKET (respipe [0]);
405	respipe_osf [1] = TO_SOCKET (respipe [1]);
406	}
407
408	static void poll_wait (void)
409	{
410	fd_set rfd;
411
412	while (eio_nreqs ())	704	while (eio_nreqs ())
413	{	705	{
414	int size;	706	int size;
415		707
416	X_LOCK (reslock);	708	X_LOCK (reslock);
…		…
420	if (size)	712	if (size)
421	return;	713	return;
422		714
423	etp_maybe_start_thread ();	715	etp_maybe_start_thread ();
424		716
425	FD_ZERO (&rfd);	717	s_epipe_wait (&respipe);
426	FD_SET (respipe [0], &rfd);
427
428	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
429	}	718	}
430	}	719	}
431		720
432	static int poll_cb (void)	721	static int
		722	poll_cb (void)
433	{	723	{
434	for (;;)	724	for (;;)
435	{	725	{
436	int res = eio_poll ();	726	int res = eio_poll ();
437		727
…		…
443		733
444	poll_wait ();	734	poll_wait ();
445	}	735	}
446	}	736	}
447		737
448	static void atfork_child (void)	738	static void ecb_cold
		739	reinit (void)
449	{	740	{
450	create_respipe ();	741	create_respipe ();
		742
		743	if (eio_init (want_poll, done_poll) < 0)
		744	croak ("IO::AIO: unable to initialise eio library");
		745	}
		746
		747	/*****************************************************************************/
		748
		749	#if !_POSIX_MAPPED_FILES
		750	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		751	# define munmap(addr,length) EIO_ENOSYS ()
		752	#endif
		753
		754	#if !_POSIX_MEMORY_PROTECTION
		755	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		756	# define PROT_NONE 0
		757	# define PROT_WRITE 0
		758	# define MAP_PRIVATE 0
		759	# define MAP_SHARED 0
		760	# define MAP_FIXED 0
		761	#endif
		762
		763	#define MMAP_MAGIC PERL_MAGIC_ext
		764
		765	static int ecb_cold
		766	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		767	{
		768	int old_errno = errno;
		769	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		770	errno = old_errno;
		771
		772	mg->mg_obj = 0; /* just in case */
		773
		774	SvREADONLY_off (sv);
		775
		776	if (SvPVX (sv) != mg->mg_ptr)
		777	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		778
		779	SvCUR_set (sv, 0);
		780	SvPVX (sv) = 0;
		781	SvOK_off (sv);
		782
		783	return 0;
		784	}
		785
		786	static MGVTBL mmap_vtbl = {
		787	0, 0, 0, 0, mmap_free
		788	};
		789
		790	/*****************************************************************************/
		791
		792	static SV *
		793	get_cb (SV *cb_sv)
		794	{
		795	SvGETMAGIC (cb_sv);
		796	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		797	}
		798
		799	static aio_req ecb_noinline
		800	dreq (SV *callback)
		801	{
		802	SV *cb_cv;
		803	aio_req req;
		804	int req_pri = next_pri;
		805	next_pri = EIO_PRI_DEFAULT;
		806
		807	cb_cv = get_cb (callback);
		808
		809	req = calloc (sizeof (*req), 1);
		810	if (!req)
		811	croak ("out of memory during eio_req allocation");
		812
		813	req->callback = SvREFCNT_inc (cb_cv);
		814	req->pri = req_pri;
		815
		816	return req;
451	}	817	}
452		818
453	#define dREQ \	819	#define dREQ \
454	aio_req req; \	820	aio_req req = dreq (callback); \
455	int req_pri = next_pri; \
456	next_pri = EIO_PRI_DEFAULT; \
457	\
458	if (SvOK (callback) && !SvROK (callback)) \
459	croak ("callback must be undef or of reference type"); \
460	\
461	Newz (0, req, 1, eio_req); \
462	if (!req) \
463	croak ("out of memory during eio_req allocation"); \
464	\
465	req->callback = newSVsv (callback); \
466	req->pri = req_pri
467		821
468	#define REQ_SEND \	822	#define REQ_SEND \
		823	PUTBACK; \
469	req_submit (req); \	824	req_submit (req); \
		825	SPAGAIN; \
470	\	826	\
471	if (GIMME_V != G_VOID) \	827	if (GIMME_V != G_VOID) \
472	XPUSHs (req_sv (req, AIO_REQ_KLASS));	828	XPUSHs (req_sv (req, aio_req_stash));
473		829
		830	ecb_inline void
		831	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		832	{
		833	if (expect_false (SvROK (path)))
		834	{
		835	SV *rv = SvRV (path);
		836	SV *wdob;
		837
		838	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		839	{
		840	path = AvARRAY (rv)[1];
		841	wdob = AvARRAY (rv)[0];
		842
		843	if (SvOK (wdob))
		844	{
		845	*wd = SvAIO_WD (wdob);
		846	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		847	}
		848	else
		849	*wd = EIO_INVALID_WD;
		850	}
		851	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		852	{
		853	*wd = (aio_wd)(long)SvIVX (rv);
		854	*wdsv = SvREFCNT_inc_NN (rv);
		855	*ptr = ".";
		856	return; /* path set to "." */
		857	}
		858	else
		859	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		860	}
		861
		862	*pathsv = newSVsv (path);
		863	*ptr = SvPVbyte_nolen (*pathsv);
		864	}
		865
		866	static void ecb_noinline
		867	req_set_path1 (aio_req req, SV *path)
		868	{
		869	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		870	}
		871
		872	static void ecb_noinline
		873	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		874	{
		875	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		876
		877	switch (SvTYPE (rv))
		878	{
		879	case SVt_PVIO:
		880	case SVt_PVLV:
		881	case SVt_PVGV:
		882	req->type = type_fh;
		883	req->sv1 = newSVsv (fh_or_path);
		884	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		885	break;
		886
		887	default:
		888	req->type = type_path;
		889	req_set_path1 (req, fh_or_path);
		890	break;
		891	}
		892	}
		893
		894	XS(boot_IO__AIO) ecb_cold;
		895
474	MODULE = IO::AIO PACKAGE = IO::AIO	896	MODULE = IO::AIO PACKAGE = IO::AIO
475		897
476	PROTOTYPES: ENABLE	898	PROTOTYPES: ENABLE
477		899
478	BOOT:	900	BOOT:
479	{	901	{
		902	static const struct {
		903	const char *name;
		904	IV iv;
		905	} *civ, const_iv[] = {
		906	# define const_niv(name, value) { # name, (IV) value },
		907	# define const_iv(name) { # name, (IV) name },
		908	# define const_eio(name) { # name, (IV) EIO_ ## name },
		909
		910	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		911
		912	const_iv (ENOSYS)
		913	const_iv (EXDEV)
		914	const_iv (EBADR)
		915
		916	const_iv (O_RDONLY)
		917	const_iv (O_WRONLY)
		918	const_iv (O_RDWR)
		919	const_iv (O_CREAT)
		920	const_iv (O_TRUNC)
		921	const_iv (O_EXCL)
		922	const_iv (O_APPEND)
		923
		924	const_iv (O_ASYNC)
		925	const_iv (O_DIRECT)
		926	const_iv (O_NOATIME)
		927
		928	const_iv (O_CLOEXEC)
		929	const_iv (O_NOCTTY)
		930	const_iv (O_NOFOLLOW)
		931	const_iv (O_NONBLOCK)
		932	const_iv (O_EXEC)
		933	const_iv (O_SEARCH)
		934	const_iv (O_DIRECTORY)
		935	const_iv (O_DSYNC)
		936	const_iv (O_RSYNC)
		937	const_iv (O_SYNC)
		938	const_iv (O_TTY_INIT)
		939
		940	const_iv (S_IFIFO)
		941	const_iv (S_IFCHR)
		942	const_iv (S_IFBLK)
		943	const_iv (S_IFLNK)
		944	const_iv (S_IFREG)
		945	const_iv (S_IFDIR)
		946	const_iv (S_IFWHT)
		947	const_iv (S_IFSOCK)
		948	const_iv (S_IFMT)
		949
		950	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		951	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		952	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		953	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		954	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		955	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		956
		957	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		958	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		959	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		960	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		961	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		962
		963	const_iv (ST_RDONLY)
		964	const_iv (ST_NOSUID)
		965	const_iv (ST_NODEV)
		966	const_iv (ST_NOEXEC)
		967	const_iv (ST_SYNCHRONOUS)
		968	const_iv (ST_MANDLOCK)
		969	const_iv (ST_WRITE)
		970	const_iv (ST_APPEND)
		971	const_iv (ST_IMMUTABLE)
		972	const_iv (ST_NOATIME)
		973	const_iv (ST_NODIRATIME)
		974	const_iv (ST_RELATIME)
		975
		976	const_iv (PROT_NONE)
		977	const_iv (PROT_EXEC)
		978	const_iv (PROT_READ)
		979	const_iv (PROT_WRITE)
		980
		981	/*const_iv (MAP_FIXED)*/
		982	const_iv (MAP_PRIVATE)
		983	const_iv (MAP_SHARED)
		984	const_iv (MAP_ANONYMOUS)
		985
		986	/* linuxish */
		987	const_iv (MAP_HUGETLB)
		988	const_iv (MAP_LOCKED)
		989	const_iv (MAP_NORESERVE)
		990	const_iv (MAP_POPULATE)
		991	const_iv (MAP_NONBLOCK)
		992
		993	const_iv (FIEMAP_FLAG_SYNC)
		994	const_iv (FIEMAP_FLAG_XATTR)
		995	const_iv (FIEMAP_FLAGS_COMPAT)
		996	const_iv (FIEMAP_EXTENT_LAST)
		997	const_iv (FIEMAP_EXTENT_UNKNOWN)
		998	const_iv (FIEMAP_EXTENT_DELALLOC)
		999	const_iv (FIEMAP_EXTENT_ENCODED)
		1000	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1001	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1002	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1003	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1004	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1005	const_iv (FIEMAP_EXTENT_MERGED)
		1006	const_iv (FIEMAP_EXTENT_SHARED)
		1007
		1008	const_iv (SPLICE_F_MOVE)
		1009	const_iv (SPLICE_F_NONBLOCK)
		1010	const_iv (SPLICE_F_MORE)
		1011	const_iv (SPLICE_F_GIFT)
		1012
		1013	const_iv (SEEK_DATA)
		1014	const_iv (SEEK_HOLE)
		1015
		1016	/* libeio constants */
		1017	const_eio (SEEK_SET)
		1018	const_eio (SEEK_CUR)
		1019	const_eio (SEEK_END)
		1020
		1021	const_eio (MCL_FUTURE)
		1022	const_eio (MCL_CURRENT)
		1023
		1024	const_eio (MS_ASYNC)
		1025	const_eio (MS_INVALIDATE)
		1026	const_eio (MS_SYNC)
		1027
		1028	const_eio (MT_MODIFY)
		1029
		1030	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1031	const_eio (SYNC_FILE_RANGE_WRITE)
		1032	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1033
		1034	const_eio (FALLOC_FL_KEEP_SIZE)
		1035	const_eio (FALLOC_FL_PUNCH_HOLE)
		1036	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1037	const_eio (FALLOC_FL_ZERO_RANGE)
		1038
		1039	const_eio (READDIR_DENTS)
		1040	const_eio (READDIR_DIRS_FIRST)
		1041	const_eio (READDIR_STAT_ORDER)
		1042	const_eio (READDIR_FOUND_UNKNOWN)
		1043
		1044	const_eio (DT_UNKNOWN)
		1045	const_eio (DT_FIFO)
		1046	const_eio (DT_CHR)
		1047	const_eio (DT_DIR)
		1048	const_eio (DT_BLK)
		1049	const_eio (DT_REG)
		1050	const_eio (DT_LNK)
		1051	const_eio (DT_SOCK)
		1052	const_eio (DT_WHT)
		1053	};
		1054
480	stash = gv_stashpv ("IO::AIO", 1);	1055	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1056	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1057	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1058	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
481		1059
482	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1060	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
483	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1061	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
484	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
485	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
486	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
487	#ifndef _WIN32
488	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
489	#endif
490		1062
491	create_respipe ();	1063	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
492		1064
493	if (eio_init (want_poll, done_poll) < 0)	1065	reinit ();
494	croak ("IO::AIO: unable to initialise eio library");
495
496	/* atfork child called in fifo order, so before eio's handler */
497	X_THREAD_ATFORK (0, 0, atfork_child);
498	}	1066	}
499		1067
500	void	1068	void
		1069	reinit ()
		1070	PROTOTYPE:
		1071
		1072	void
501	max_poll_reqs (int nreqs)	1073	max_poll_reqs (unsigned int nreqs)
502	PROTOTYPE: $	1074	PROTOTYPE: $
503	CODE:	1075	CODE:
504	eio_set_max_poll_reqs (nreqs);	1076	eio_set_max_poll_reqs (nreqs);
505		1077
506	void	1078	void
…		…
508	PROTOTYPE: $	1080	PROTOTYPE: $
509	CODE:	1081	CODE:
510	eio_set_max_poll_time (nseconds);	1082	eio_set_max_poll_time (nseconds);
511		1083
512	void	1084	void
513	min_parallel (int nthreads)	1085	min_parallel (unsigned int nthreads)
514	PROTOTYPE: $	1086	PROTOTYPE: $
515	CODE:	1087	CODE:
516	eio_set_min_parallel (nthreads);	1088	eio_set_min_parallel (nthreads);
517		1089
518	void	1090	void
519	max_parallel (int nthreads)	1091	max_parallel (unsigned int nthreads)
520	PROTOTYPE: $	1092	PROTOTYPE: $
521	CODE:	1093	CODE:
522	eio_set_max_parallel (nthreads);	1094	eio_set_max_parallel (nthreads);
523		1095
524	void	1096	void
525	max_idle (int nthreads)	1097	max_idle (unsigned int nthreads)
526	PROTOTYPE: $	1098	PROTOTYPE: $
527	CODE:	1099	CODE:
528	eio_set_max_idle (nthreads);	1100	eio_set_max_idle (nthreads);
529		1101
530	void	1102	void
		1103	idle_timeout (unsigned int seconds)
		1104	PROTOTYPE: $
		1105	CODE:
		1106	eio_set_idle_timeout (seconds);
		1107
		1108	void
531	max_outstanding (int maxreqs)	1109	max_outstanding (unsigned int maxreqs)
532	PROTOTYPE: $	1110	PROTOTYPE: $
533	CODE:	1111	CODE:
534	max_outstanding = maxreqs;	1112	max_outstanding = maxreqs;
535		1113
536	void	1114	void
537	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1115	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
538	PROTOTYPE: $$$;$
539	PPCODE:	1116	PPCODE:
540	{	1117	{
541	dREQ;	1118	dREQ;
542		1119
		1120	req->type = EIO_WD_OPEN;
		1121	req_set_path1 (req, pathname);
		1122
		1123	REQ_SEND;
		1124	}
		1125
		1126	void
		1127	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1128	PPCODE:
		1129	{
		1130	dREQ;
		1131
543	req->type = EIO_OPEN;	1132	req->type = EIO_OPEN;
544	req->sv1 = newSVsv (pathname);	1133	req_set_path1 (req, pathname);
545	req->ptr1 = SvPVbyte_nolen (req->sv1);
546	req->int1 = flags;	1134	req->int1 = flags;
547	req->int2 = mode;	1135	req->int2 = mode;
548		1136
549	REQ_SEND;	1137	REQ_SEND;
550	}	1138	}
551		1139
552	void	1140	void
553	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1141	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
554	PROTOTYPE: $;$
555	ALIAS:	1142	ALIAS:
556	aio_fsync = EIO_FSYNC	1143	aio_fsync = EIO_FSYNC
557	aio_fdatasync = EIO_FDATASYNC	1144	aio_fdatasync = EIO_FDATASYNC
		1145	aio_syncfs = EIO_SYNCFS
558	PPCODE:	1146	PPCODE:
559	{	1147	{
		1148	int fd = s_fileno_croak (fh, 0);
560	dREQ;	1149	dREQ;
561		1150
562	req->type = ix;	1151	req->type = ix;
563	req->sv1 = newSVsv (fh);	1152	req->sv1 = newSVsv (fh);
564	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1153	req->int1 = fd;
565		1154
566	REQ_SEND (req);	1155	REQ_SEND;
567	}	1156	}
568		1157
569	void	1158	void
570	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1159	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
571	PROTOTYPE: $;$
572	PPCODE:	1160	PPCODE:
573	{	1161	{
574	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1162	int fd = s_fileno_croak (fh, 0);
575	dREQ;	1163	dREQ;
576		1164
577	if (close_pipe < 0)	1165	req->type = EIO_SYNC_FILE_RANGE;
		1166	req->sv1 = newSVsv (fh);
		1167	req->int1 = fd;
		1168	req->offs = offset;
		1169	req->size = nbytes;
		1170	req->int2 = flags;
		1171
		1172	REQ_SEND;
		1173	}
		1174
		1175	void
		1176	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1177	PPCODE:
		1178	{
		1179	int fd = s_fileno_croak (fh, 0);
		1180	dREQ;
		1181
		1182	req->type = EIO_FALLOCATE;
		1183	req->sv1 = newSVsv (fh);
		1184	req->int1 = fd;
		1185	req->int2 = mode;
		1186	req->offs = offset;
		1187	req->size = len;
		1188
		1189	REQ_SEND;
		1190	}
		1191
		1192	void
		1193	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1194	PPCODE:
		1195	{
		1196	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1197	int fd = s_fileno_croak (fh, 0);
		1198	dREQ;
		1199
		1200	if (expect_false (close_fd < 0))
578	{	1201	{
579	int pipefd [2];	1202	int pipefd [2];
580		1203
		1204	if (
		1205	#ifdef _WIN32
		1206	_pipe (pipefd, 1, _O_BINARY) < 0
		1207	#else
581	if (pipe (pipefd) < 0	1208	pipe (pipefd) < 0
582	|| close (pipefd [1]) < 0
583	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1209	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1210	#endif
		1211	|| close (pipefd [1]) < 0
		1212	)
584	abort (); /*D*/	1213	abort (); /*D*/
585		1214
586	close_pipe = pipefd [0];	1215	close_fd = pipefd [0];
587	}	1216	}
588		1217
589	req->type = EIO_DUP2;	1218	req->type = EIO_DUP2;
590	req->int1 = close_pipe;	1219	req->int1 = close_fd;
591	req->sv2 = newSVsv (fh);	1220	req->sv2 = newSVsv (fh);
592	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1221	req->int2 = fd;
593		1222
594	REQ_SEND (req);	1223	REQ_SEND;
595	}	1224	}
596		1225
597	void	1226	void
		1227	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1228	PPCODE:
		1229	{
		1230	int fd = s_fileno_croak (fh, 0);
		1231	dREQ;
		1232
		1233	req->type = EIO_SEEK;
		1234	req->sv1 = newSVsv (fh);
		1235	req->int1 = fd;
		1236	req->offs = SvVAL64 (offset);
		1237	req->int2 = whence;
		1238
		1239	REQ_SEND;
		1240	}
		1241
		1242	void
598	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1243	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
599	ALIAS:	1244	ALIAS:
600	aio_read = EIO_READ	1245	aio_read = EIO_READ
601	aio_write = EIO_WRITE	1246	aio_write = EIO_WRITE
602	PROTOTYPE: $$$$$;$
603	PPCODE:	1247	PPCODE:
604	{	1248	{
605	STRLEN svlen;	1249	STRLEN svlen;
		1250	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
606	char *svptr = SvPVbyte (data, svlen);	1251	char *svptr = SvPVbyte (data, svlen);
607	UV len = SvUV (length);	1252	UV len = SvUV (length);
608
609	SvUPGRADE (data, SVt_PV);
610	SvPOK_on (data);
611		1253
612	if (dataoffset < 0)	1254	if (dataoffset < 0)
613	dataoffset += svlen;	1255	dataoffset += svlen;
614		1256
615	if (dataoffset < 0 || dataoffset > svlen)	1257	if (dataoffset < 0 || dataoffset > svlen)
…		…
621	if (!SvOK (length) || len + dataoffset > svlen)	1263	if (!SvOK (length) || len + dataoffset > svlen)
622	len = svlen - dataoffset;	1264	len = svlen - dataoffset;
623	}	1265	}
624	else	1266	else
625	{	1267	{
626	/* read: grow scalar as necessary */	1268	/* read: check type and grow scalar as necessary */
		1269	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
627	svptr = SvGROW (data, len + dataoffset + 1);	1270	svptr = sv_grow (data, len + dataoffset + 1);
		1271	else if (SvCUR (data) < len + dataoffset)
		1272	croak ("length + dataoffset outside of scalar, and cannot grow");
628	}	1273	}
629
630	if (len < 0)
631	croak ("length must not be negative");
632		1274
633	{	1275	{
634	dREQ;	1276	dREQ;
635		1277
636	req->type = ix;	1278	req->type = ix;
637	req->sv1 = newSVsv (fh);	1279	req->sv1 = newSVsv (fh);
638	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1280	req->int1 = fd;
639	: IoOFP (sv_2io (fh)));
640	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1281	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
641	req->size = len;	1282	req->size = len;
642	req->sv2 = SvREFCNT_inc (data);	1283	req->sv2 = SvREFCNT_inc (data);
643	req->ptr2 = (char *)svptr + dataoffset;	1284	req->ptr2 = (char *)svptr + dataoffset;
644	req->stroffset = dataoffset;	1285	req->stroffset = dataoffset;
…		…
652	REQ_SEND;	1293	REQ_SEND;
653	}	1294	}
654	}	1295	}
655		1296
656	void	1297	void
657	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1298	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
658	PROTOTYPE: $$;$	1299	ALIAS:
		1300	aio_readlink = EIO_READLINK
		1301	aio_realpath = EIO_REALPATH
659	PPCODE:	1302	PPCODE:
660	{	1303	{
661	SV *data;
662	dREQ;	1304	dREQ;
663		1305
664	req->type = EIO_READLINK;	1306	req->type = ix;
665	req->sv1 = newSVsv (path);	1307	req_set_path1 (req, pathname);
666	req->ptr1 = SvPVbyte_nolen (req->sv1);
667		1308
668	REQ_SEND;	1309	REQ_SEND;
669	}	1310	}
670		1311
671	void	1312	void
672	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1313	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
673	PROTOTYPE: $$$$;$
674	PPCODE:	1314	PPCODE:
675	{	1315	{
		1316	int ifd = s_fileno_croak (in_fh , 0);
		1317	int ofd = s_fileno_croak (out_fh, 1);
676	dREQ;	1318	dREQ;
677		1319
678	req->type = EIO_SENDFILE;	1320	req->type = EIO_SENDFILE;
679	req->sv1 = newSVsv (out_fh);	1321	req->sv1 = newSVsv (out_fh);
680	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1322	req->int1 = ofd;
681	req->sv2 = newSVsv (in_fh);	1323	req->sv2 = newSVsv (in_fh);
682	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1324	req->int2 = ifd;
683	req->offs = SvVAL64 (in_offset);	1325	req->offs = in_offset;
684	req->size = length;	1326	req->size = length;
685		1327
686	REQ_SEND;	1328	REQ_SEND;
687	}	1329	}
688		1330
689	void	1331	void
690	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1332	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
691	PROTOTYPE: $$$;$
692	PPCODE:	1333	PPCODE:
693	{	1334	{
		1335	int fd = s_fileno_croak (fh, 0);
694	dREQ;	1336	dREQ;
695		1337
696	req->type = EIO_READAHEAD;	1338	req->type = EIO_READAHEAD;
697	req->sv1 = newSVsv (fh);	1339	req->sv1 = newSVsv (fh);
698	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1340	req->int1 = fd;
699	req->offs = SvVAL64 (offset);	1341	req->offs = offset;
700	req->size = length;	1342	req->size = length;
701		1343
702	REQ_SEND;	1344	REQ_SEND;
703	}	1345	}
704		1346
705	void	1347	void
706	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1348	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
707	ALIAS:	1349	ALIAS:
708	aio_stat = EIO_STAT	1350	aio_stat = EIO_STAT
709	aio_lstat = EIO_LSTAT	1351	aio_lstat = EIO_LSTAT
		1352	aio_statvfs = EIO_STATVFS
710	PPCODE:	1353	PPCODE:
711	{	1354	{
712	dREQ;	1355	dREQ;
713		1356
714	req->sv1 = newSVsv (fh_or_path);	1357	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
715
716	if (SvPOK (req->sv1))
717	{
718	req->type = ix;
719	req->ptr1 = SvPVbyte_nolen (req->sv1);
720	}
721	else
722	{
723	req->type = EIO_FSTAT;
724	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
725	}
726		1358
727	REQ_SEND;	1359	REQ_SEND;
728	}	1360	}
729		1361
		1362	UV
		1363	major (UV dev)
		1364	ALIAS:
		1365	minor = 1
		1366	CODE:
		1367	RETVAL = ix ? major (dev) : minor (dev);
		1368	OUTPUT:
		1369	RETVAL
		1370
		1371	UV
		1372	makedev (UV maj, UV min)
		1373	CODE:
		1374	RETVAL = makedev (maj, min);
		1375	OUTPUT:
		1376	RETVAL
		1377
730	void	1378	void
731	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1379	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
732	PPCODE:	1380	PPCODE:
733	{	1381	{
734	dREQ;	1382	dREQ;
735		1383
736	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1384	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
737	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1385	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
738	req->sv1 = newSVsv (fh_or_path);	1386	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
739
740	if (SvPOK (req->sv1))
741	{
742	req->type = EIO_UTIME;
743	req->ptr1 = SvPVbyte_nolen (req->sv1);
744	}
745	else
746	{
747	req->type = EIO_FUTIME;
748	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
749	}
750		1387
751	REQ_SEND;	1388	REQ_SEND;
752	}	1389	}
753		1390
754	void	1391	void
755	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1392	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
756	PPCODE:	1393	PPCODE:
757	{	1394	{
758	dREQ;	1395	dREQ;
759		1396
760	req->sv1 = newSVsv (fh_or_path);
761	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1397	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
762		1398	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
763	if (SvPOK (req->sv1))
764	{
765	req->type = EIO_TRUNCATE;
766	req->ptr1 = SvPVbyte_nolen (req->sv1);
767	}
768	else
769	{
770	req->type = EIO_FTRUNCATE;
771	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
772	}
773		1399
774	REQ_SEND;	1400	REQ_SEND;
775	}	1401	}
776		1402
777	void	1403	void
778	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1404	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
779	ALIAS:
780	aio_chmod = EIO_CHMOD
781	aio_mkdir = EIO_MKDIR
782	PPCODE:	1405	PPCODE:
783	{	1406	{
784	dREQ;	1407	dREQ;
785		1408
786	req->int2 = mode;	1409	req->int2 = mode;
787	req->sv1 = newSVsv (fh_or_path);	1410	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
788
789	if (SvPOK (req->sv1))
790	{
791	req->type = ix;
792	req->ptr1 = SvPVbyte_nolen (req->sv1);
793	}
794	else
795	{
796	req->type = EIO_FCHMOD;
797	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
798	}
799		1411
800	REQ_SEND;	1412	REQ_SEND;
801	}	1413	}
802		1414
803	void	1415	void
804	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1416	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
805	PPCODE:	1417	PPCODE:
806	{	1418	{
807	dREQ;	1419	dREQ;
808		1420
809	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1421	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
810	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1422	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
811	req->sv1 = newSVsv (fh_or_path);	1423	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
812
813	if (SvPOK (req->sv1))
814	{
815	req->type = EIO_CHOWN;
816	req->ptr1 = SvPVbyte_nolen (req->sv1);
817	}
818	else
819	{
820	req->type = EIO_FCHOWN;
821	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
822	}
823		1424
824	REQ_SEND;	1425	REQ_SEND;
825	}	1426	}
826		1427
827	void	1428	void
		1429	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1430	PPCODE:
		1431	{
		1432	dREQ;
		1433
		1434	req->type = EIO_READDIR;
		1435	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1436
		1437	if (flags & EIO_READDIR_DENTS)
		1438	req->int1 |= EIO_READDIR_CUSTOM2;
		1439
		1440	req_set_path1 (req, pathname);
		1441
		1442	REQ_SEND;
		1443	}
		1444
		1445	void
		1446	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1447	PPCODE:
		1448	{
		1449	dREQ;
		1450
		1451	req->type = EIO_MKDIR;
		1452	req->int2 = mode;
		1453	req_set_path1 (req, pathname);
		1454
		1455	REQ_SEND;
		1456	}
		1457
		1458	void
828	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1459	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
829	ALIAS:	1460	ALIAS:
830	aio_unlink = EIO_UNLINK	1461	aio_unlink = EIO_UNLINK
831	aio_rmdir = EIO_RMDIR	1462	aio_rmdir = EIO_RMDIR
832	aio_readdir = EIO_READDIR	1463	aio_readdir = EIO_READDIR
833	PPCODE:	1464	PPCODE:
834	{	1465	{
835	dREQ;	1466	dREQ;
836		1467
837	req->type = ix;	1468	req->type = ix;
838	req->sv1 = newSVsv (pathname);	1469	req_set_path1 (req, pathname);
839	req->ptr1 = SvPVbyte_nolen (req->sv1);
840		1470
841	REQ_SEND;	1471	REQ_SEND;
842	}	1472	}
843		1473
844	void	1474	void
845	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1475	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
846	ALIAS:	1476	ALIAS:
847	aio_link = EIO_LINK	1477	aio_link = EIO_LINK
848	aio_symlink = EIO_SYMLINK	1478	aio_symlink = EIO_SYMLINK
849	aio_rename = EIO_RENAME	1479	aio_rename = EIO_RENAME
850	PPCODE:	1480	PPCODE:
851	{	1481	{
		1482	eio_wd wd2 = 0;
852	dREQ;	1483	dREQ;
853		1484
854	req->type = ix;	1485	req->type = ix;
855	req->sv1 = newSVsv (oldpath);	1486	req_set_path1 (req, oldpath);
856	req->ptr1 = SvPVbyte_nolen (req->sv1);	1487	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
857	req->sv2 = newSVsv (newpath);	1488	req->int3 = (long)wd2;
858	req->ptr2 = SvPVbyte_nolen (req->sv2);
859		1489
860	REQ_SEND;	1490	REQ_SEND;
861	}	1491	}
862		1492
863	void	1493	void
864	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1494	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
865	PPCODE:	1495	PPCODE:
866	{	1496	{
867	dREQ;	1497	dREQ;
868		1498
869	req->type = EIO_MKNOD;	1499	req->type = EIO_MKNOD;
870	req->sv1 = newSVsv (pathname);
871	req->ptr1 = SvPVbyte_nolen (req->sv1);
872	req->int2 = (mode_t)mode;	1500	req->int2 = (mode_t)mode;
873	req->offs = dev;	1501	req->offs = dev;
		1502	req_set_path1 (req, pathname);
874		1503
875	REQ_SEND;	1504	REQ_SEND;
876	}	1505	}
877		1506
878	void	1507	void
		1508	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
		1509	ALIAS:
		1510	aio_mtouch = EIO_MTOUCH
		1511	aio_msync = EIO_MSYNC
		1512	PPCODE:
		1513	{
		1514	STRLEN svlen;
		1515	char *svptr = SvPVbyte (data, svlen);
		1516	UV len = SvUV (length);
		1517
		1518	if (offset < 0)
		1519	offset += svlen;
		1520
		1521	if (offset < 0 || offset > svlen)
		1522	croak ("offset outside of scalar");
		1523
		1524	if (!SvOK (length) || len + offset > svlen)
		1525	len = svlen - offset;
		1526
		1527	{
		1528	dREQ;
		1529
		1530	req->type = ix;
		1531	req->sv2 = SvREFCNT_inc (data);
		1532	req->ptr2 = (char *)svptr + offset;
		1533	req->size = len;
		1534	req->int1 = flags;
		1535
		1536	REQ_SEND;
		1537	}
		1538	}
		1539
		1540	void
		1541	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1542	PPCODE:
		1543	{
		1544	STRLEN svlen;
		1545	char *svptr = SvPVbyte (data, svlen);
		1546	UV len = SvUV (length);
		1547
		1548	if (offset < 0)
		1549	offset += svlen;
		1550
		1551	if (offset < 0 || offset > svlen)
		1552	croak ("offset outside of scalar");
		1553
		1554	if (!SvOK (length) || len + offset > svlen)
		1555	len = svlen - offset;
		1556
		1557	{
		1558	dREQ;
		1559
		1560	req->type = EIO_MLOCK;
		1561	req->sv2 = SvREFCNT_inc (data);
		1562	req->ptr2 = (char *)svptr + offset;
		1563	req->size = len;
		1564
		1565	REQ_SEND;
		1566	}
		1567	}
		1568
		1569	void
		1570	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1571	PPCODE:
		1572	{
		1573	dREQ;
		1574
		1575	req->type = EIO_MLOCKALL;
		1576	req->int1 = flags;
		1577
		1578	REQ_SEND;
		1579	}
		1580
		1581	void
		1582	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1583	PPCODE:
		1584	{
		1585	int fd = s_fileno_croak (fh, 0);
		1586	dREQ;
		1587
		1588	req->type = EIO_CUSTOM;
		1589	req->sv1 = newSVsv (fh);
		1590	req->int1 = fd;
		1591
		1592	req->feed = fiemap;
		1593	#if HAVE_FIEMAP
		1594	/* keep our fingers crossed that the next two types are 64 bit */
		1595	req->offs = start;
		1596	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1597	req->int2 = flags;
		1598	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1599	#endif
		1600
		1601	REQ_SEND;
		1602	}
		1603
		1604	void
879	aio_busy (double delay, SV *callback=&PL_sv_undef)	1605	aio_busy (double delay, SV *callback = &PL_sv_undef)
880	PPCODE:	1606	PPCODE:
881	{	1607	{
882	dREQ;	1608	dREQ;
883		1609
884	req->type = EIO_BUSY;	1610	req->type = EIO_BUSY;
…		…
886		1612
887	REQ_SEND;	1613	REQ_SEND;
888	}	1614	}
889		1615
890	void	1616	void
891	aio_group (SV *callback=&PL_sv_undef)	1617	aio_group (SV *callback = &PL_sv_undef)
892	PROTOTYPE: ;$
893	PPCODE:	1618	PPCODE:
894	{	1619	{
895	dREQ;	1620	dREQ;
896		1621
897	req->type = EIO_GROUP;	1622	req->type = EIO_GROUP;
898		1623
		1624	PUTBACK;
899	eio_submit (req);	1625	req_submit (req);
		1626	SPAGAIN;
		1627
900	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1628	XPUSHs (req_sv (req, aio_grp_stash));
901	}	1629	}
902		1630
903	void	1631	void
904	aio_nop (SV *callback=&PL_sv_undef)	1632	aio_nop (SV *callback = &PL_sv_undef)
905	ALIAS:	1633	ALIAS:
906	aio_nop = EIO_NOP	1634	aio_nop = EIO_NOP
907	aio_sync = EIO_SYNC	1635	aio_sync = EIO_SYNC
908	PPCODE:	1636	PPCODE:
909	{	1637	{
…		…
913		1641
914	REQ_SEND;	1642	REQ_SEND;
915	}	1643	}
916		1644
917	int	1645	int
918	aioreq_pri (int pri = 0)	1646	aioreq_pri (int pri = NO_INIT)
919	PROTOTYPE: ;$
920	CODE:	1647	CODE:
921	RETVAL = next_pri;	1648	RETVAL = next_pri;
922	if (items > 0)	1649	if (items > 0)
923	{	1650	{
924	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1651	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
936	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1663	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
937	next_pri = nice;	1664	next_pri = nice;
938		1665
939	void	1666	void
940	flush ()	1667	flush ()
941	PROTOTYPE:
942	CODE:	1668	CODE:
943	while (eio_nreqs ())	1669	while (eio_nreqs ())
944	{	1670	{
945	poll_wait ();	1671	poll_wait ();
946	poll_cb ();	1672	poll_cb ();
947	}	1673	}
948		1674
949	int	1675	int
950	poll()	1676	poll ()
951	PROTOTYPE:
952	CODE:	1677	CODE:
953	poll_wait ();	1678	poll_wait ();
954	RETVAL = poll_cb ();	1679	RETVAL = poll_cb ();
955	OUTPUT:	1680	OUTPUT:
956	RETVAL	1681	RETVAL
957		1682
958	int	1683	int
959	poll_fileno()	1684	poll_fileno ()
960	PROTOTYPE:
961	CODE:	1685	CODE:
962	RETVAL = respipe [0];	1686	RETVAL = s_epipe_fd (&respipe);
963	OUTPUT:	1687	OUTPUT:
964	RETVAL	1688	RETVAL
965		1689
966	int	1690	int
967	poll_cb(...)	1691	poll_cb (...)
968	PROTOTYPE:	1692	PROTOTYPE:
969	CODE:	1693	CODE:
970	RETVAL = poll_cb ();	1694	RETVAL = poll_cb ();
971	OUTPUT:	1695	OUTPUT:
972	RETVAL	1696	RETVAL
973		1697
974	void	1698	void
975	poll_wait()	1699	poll_wait ()
976	PROTOTYPE:
977	CODE:	1700	CODE:
978	poll_wait ();	1701	poll_wait ();
979		1702
980	int	1703	int
981	nreqs()	1704	nreqs ()
982	PROTOTYPE:
983	CODE:	1705	CODE:
984	RETVAL = eio_nreqs ();	1706	RETVAL = eio_nreqs ();
985	OUTPUT:	1707	OUTPUT:
986	RETVAL	1708	RETVAL
987		1709
988	int	1710	int
989	nready()	1711	nready ()
990	PROTOTYPE:
991	CODE:	1712	CODE:
992	RETVAL = eio_nready ();	1713	RETVAL = eio_nready ();
993	OUTPUT:	1714	OUTPUT:
994	RETVAL	1715	RETVAL
995		1716
996	int	1717	int
997	npending()	1718	npending ()
998	PROTOTYPE:
999	CODE:	1719	CODE:
1000	RETVAL = eio_npending ();	1720	RETVAL = eio_npending ();
1001	OUTPUT:	1721	OUTPUT:
1002	RETVAL	1722	RETVAL
1003		1723
1004	int	1724	int
1005	nthreads()	1725	nthreads ()
1006	PROTOTYPE:
1007	CODE:	1726	CODE:
1008	RETVAL = eio_nthreads ();	1727	RETVAL = eio_nthreads ();
1009	OUTPUT:	1728	OUTPUT:
1010	RETVAL	1729	RETVAL
1011		1730
		1731	int
		1732	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1733	CODE:
		1734	RETVAL = posix_fadvise (fh, offset, length, advice);
		1735	OUTPUT:
		1736	RETVAL
		1737
		1738	IV
		1739	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1740	CODE:
		1741	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1742	OUTPUT:
		1743	RETVAL
		1744
		1745	void
		1746	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1747	PPCODE:
		1748	sv_unmagic (scalar, MMAP_MAGIC);
		1749	{
		1750	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1751	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1752	if (addr == (void *)-1)
		1753	XSRETURN_NO;
		1754
		1755	sv_force_normal (scalar);
		1756
		1757	/* we store the length in mg_obj, as namlen is I32 :/ */
		1758	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1759	->mg_obj = (SV *)length;
		1760
		1761	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1762
		1763	if (!(prot & PROT_WRITE))
		1764	SvREADONLY_on (scalar);
		1765
		1766	if (SvLEN (scalar))
		1767	Safefree (SvPVX (scalar));
		1768
		1769	SvPVX (scalar) = (char *)addr;
		1770	SvCUR_set (scalar, length);
		1771	SvLEN_set (scalar, 0);
		1772	SvPOK_only (scalar);
		1773
		1774	XSRETURN_YES;
		1775	}
		1776
		1777	void
		1778	munmap (SV *scalar)
		1779	CODE:
		1780	sv_unmagic (scalar, MMAP_MAGIC);
		1781
		1782	int
		1783	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1784	ALIAS:
		1785	mprotect = 1
		1786	CODE:
		1787	{
		1788	STRLEN svlen;
		1789	void *addr = SvPVbyte (scalar, svlen);
		1790	STRLEN len = SvUV (length);
		1791
		1792	if (offset < 0)
		1793	offset += svlen;
		1794
		1795	if (offset < 0 || offset > svlen)
		1796	croak ("offset outside of scalar");
		1797
		1798	if (!SvOK (length) || len + offset > svlen)
		1799	len = svlen - offset;
		1800
		1801	addr = (void *)(((intptr_t)addr) + offset);
		1802	eio_page_align (&addr, &len);
		1803
		1804	switch (ix)
		1805	{
		1806	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1807	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1808	}
		1809	}
		1810	OUTPUT:
		1811	RETVAL
		1812
		1813	int
		1814	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1815	CODE:
		1816	{
		1817	STRLEN svlen;
		1818	void *addr = SvPVbyte (scalar, svlen);
		1819	size_t len = SvUV (length);
		1820
		1821	if (offset < 0)
		1822	offset += svlen;
		1823
		1824	if (offset < 0 || offset > svlen)
		1825	croak ("offset outside of scalar");
		1826
		1827	if (!SvOK (length) || len + offset > svlen)
		1828	len = svlen - offset;
		1829
		1830	addr = (void *)(((intptr_t)addr) + offset);
		1831	eio_page_align (&addr, &len);
		1832	#if _POSIX_MEMLOCK_RANGE
		1833	RETVAL = munlock (addr, len);
		1834	#else
		1835	RETVAL = EIO_ENOSYS ();
		1836	#endif
		1837	}
		1838	OUTPUT:
		1839	RETVAL
		1840
		1841	int
		1842	munlockall ()
		1843	CODE:
		1844	#if _POSIX_MEMLOCK
		1845	munlockall ();
		1846	#else
		1847	RETVAL = EIO_ENOSYS ();
		1848	#endif
		1849	OUTPUT:
		1850	RETVAL
		1851
		1852	int
		1853	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1854	CODE:
		1855	{
		1856	#if HAVE_LINUX_SPLICE
		1857	loff_t off_in_, off_out_;
		1858	RETVAL = splice (
		1859	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1860	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1861	length, flags
		1862	);
		1863	#else
		1864	RETVAL = EIO_ENOSYS ();
		1865	#endif
		1866	}
		1867	OUTPUT:
		1868	RETVAL
		1869
		1870	int
		1871	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1872	CODE:
		1873	#if HAVE_LINUX_SPLICE
		1874	RETVAL = tee (rfh, wfh, length, flags);
		1875	#else
		1876	RETVAL = EIO_ENOSYS ();
		1877	#endif
		1878	OUTPUT:
		1879	RETVAL
		1880
		1881	int
		1882	pipesize (aio_rfd rfh, int new_size = -1)
		1883	PROTOTYPE: $;$
		1884	CODE:
		1885	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1886	if (new_size >= 0)
		1887	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1888	else
		1889	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1890	#else
		1891	errno = ENOSYS;
		1892	RETVAL = -1;
		1893	#endif
		1894	OUTPUT:
		1895	RETVAL
		1896
		1897	void
		1898	pipe2 (int flags = 0)
		1899	PROTOTYPE: ;$
		1900	PPCODE:
		1901	{
		1902	int fd[2];
		1903	int res;
		1904
		1905	if (flags)
		1906	#if HAVE_PIPE2
		1907	res = pipe2 (fd, flags);
		1908	#else
		1909	res = (errno = ENOSYS, -1);
		1910	#endif
		1911	else
		1912	res = pipe (fd);
		1913
		1914	if (!res)
		1915	{
		1916	EXTEND (SP, 2);
		1917	PUSHs (newmortalFH (fd[0], O_RDONLY));
		1918	PUSHs (newmortalFH (fd[1], O_WRONLY));
		1919	}
		1920	}
		1921
1012	void _on_next_submit (SV *cb)	1922	void _on_next_submit (SV *cb)
1013	CODE:	1923	CODE:
1014	SvREFCNT_dec (on_next_submit);	1924	SvREFCNT_dec (on_next_submit);
1015	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1925	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1016		1926
1017	PROTOTYPES: DISABLE	1927	PROTOTYPES: DISABLE
1018		1928
		1929	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1930
		1931	BOOT:
		1932	{
		1933	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1934	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1935	}
		1936
		1937	void
		1938	DESTROY (SV *self)
		1939	CODE:
		1940	{
		1941	aio_wd wd = SvAIO_WD (self);
		1942	#if HAVE_AT
		1943	{
		1944	SV *callback = &PL_sv_undef;
		1945	dREQ; /* clobbers next_pri :/ */
		1946	next_pri = req->pri; /* restore next_pri */
		1947	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1948	req->type = EIO_WD_CLOSE;
		1949	req->wd = wd;
		1950	REQ_SEND;
		1951	}
		1952	#else
		1953	eio_wd_close_sync (wd);
		1954	#endif
		1955	}
		1956
1019	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1957	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1020		1958
1021	void	1959	void
1022	cancel (aio_req_ornot req)	1960	cancel (aio_req_ornot req)
1023	CODE:	1961	CODE:
1024	eio_cancel (req);	1962	eio_cancel (req);
1025		1963
1026	void	1964	void
1027	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1965	cb (aio_req_ornot req, SV *callback = NO_INIT)
1028	CODE:	1966	PPCODE:
		1967	{
		1968	if (GIMME_V != G_VOID)
		1969	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1970
		1971	if (items > 1)
		1972	{
		1973	SV *cb_cv = get_cb (callback);
		1974
1029	SvREFCNT_dec (req->callback);	1975	SvREFCNT_dec (req->callback);
1030	req->callback = newSVsv (callback);	1976	req->callback = SvREFCNT_inc (cb_cv);
		1977	}
		1978	}
1031		1979
1032	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1980	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1033		1981
1034	void	1982	void
1035	add (aio_req grp, ...)	1983	add (aio_req grp, ...)
…		…
1067	AV *av;	2015	AV *av;
1068		2016
1069	grp->errorno = errno;	2017	grp->errorno = errno;
1070		2018
1071	av = newAV ();	2019	av = newAV ();
		2020	av_extend (av, items - 1);
1072		2021
1073	for (i = 1; i < items; ++i )	2022	for (i = 1; i < items; ++i )
1074	av_push (av, newSVsv (ST (i)));	2023	av_push (av, newSVsv (ST (i)));
1075		2024
1076	SvREFCNT_dec (grp->sv1);	2025	SvREFCNT_dec (grp->sv1);
…		…
1086	limit (aio_req grp, int limit)	2035	limit (aio_req grp, int limit)
1087	CODE:	2036	CODE:
1088	eio_grp_limit (grp, limit);	2037	eio_grp_limit (grp, limit);
1089		2038
1090	void	2039	void
1091	feed (aio_req grp, SV *callback=&PL_sv_undef)	2040	feed (aio_req grp, SV *callback = &PL_sv_undef)
1092	CODE:	2041	CODE:
1093	{	2042	{
1094	SvREFCNT_dec (grp->sv2);	2043	SvREFCNT_dec (grp->sv2);
1095	grp->sv2 = newSVsv (callback);	2044	grp->sv2 = newSVsv (callback);
		2045	grp->feed = aio_grp_feed;
1096		2046
1097	if (grp->int2 <= 0)	2047	if (grp->int2 <= 0)
1098	grp->int2 = 2;	2048	grp->int2 = 2;
1099		2049
1100	eio_grp_limit (grp, grp->int2);	2050	eio_grp_limit (grp, grp->int2);

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