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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.136 by root, Sun Apr 19 13:15:55 2009 UTC vs.
Revision 1.232 by root, Sat Jun 13 00:06:13 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	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	#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	/*****************************************************************************/
		265
119	enum {	266	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	268	};
122		269
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	270	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	271	typedef eio_req *aio_req_ornot;
		272	typedef eio_wd aio_wd;
127		273
128	static SV *on_next_submit;	274	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	275	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	276	static int max_outstanding;
131		277
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	278	static s_epipe respipe;
133		279
134	static void req_destroy (aio_req req);	280	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	281	static void req_cancel (aio_req req);
136		282
137	static void want_poll (void)	283	static void
		284	want_poll (void)
138	{	285	{
139	/* write a dummy byte to the pipe so fh becomes ready */	286	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	287	s_epipe_signal (&respipe);
141	}	288	}
142		289
143	static void done_poll (void)	290	static void
		291	done_poll (void)
144	{	292	{
145	/* read any signals sent by the worker threads */	293	/* read any signals sent by the worker threads */
146	char buf [4];	294	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	295	}
150		296
151	/* must be called at most once */	297	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	298	static SV *
		299	req_sv (aio_req req, HV *stash)
153	{	300	{
154	if (!req->self)	301	if (!req->self)
155	{	302	{
156	req->self = (SV *)newHV ();	303	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	304	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	305	}
159		306
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	307	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	308	}
162		309
163	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)
164	{	318	{
165	MAGIC *mg;	319	MAGIC *mg;
166		320
167	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")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	326	croak ("object of class IO::AIO::REQ expected");
169		327
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	328	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		329
172	return mg ? (aio_req)mg->mg_ptr : 0;	330	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	331	}
174		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 void
175	static void aio_grp_feed (aio_req grp)	345	aio_grp_feed (aio_req grp)
176	{	346	{
177	if (grp->sv2 && SvOK (grp->sv2))	347	if (grp->sv2 && SvOK (grp->sv2))
178	{	348	{
179	dSP;	349	dSP;
180		350
181	ENTER;	351	ENTER;
182	SAVETMPS;	352	SAVETMPS;
183	PUSHMARK (SP);	353	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	354	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	355	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	356	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	357	SPAGAIN;
188	FREETMPS;	358	FREETMPS;
189	LEAVE;	359	LEAVE;
190	}	360	}
191	}	361	}
192		362
		363	static void
193	static void req_submit (eio_req *req)	364	req_submit (eio_req *req)
194	{	365	{
195	eio_submit (req);	366	eio_submit (req);
196		367
197	if (expect_false (on_next_submit))	368	if (expect_false (on_next_submit))
198	{	369	{
…		…
205	PUTBACK;	376	PUTBACK;
206	call_sv (cb, G_DISCARD | G_EVAL);	377	call_sv (cb, G_DISCARD | G_EVAL);
207	}	378	}
208	}	379	}
209		380
		381	static int
210	static int req_invoke (eio_req *req)	382	req_invoke (eio_req *req)
211	{	383	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	384	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	385	SvREADONLY_off (req->sv2);
216		386
217	if (!EIO_CANCELLED (req) && req->callback)	387	if (!EIO_CANCELLED (req) && req->callback)
218	{	388	{
		389	dSP;
		390	static SV *sv_result_cache; /* caches the result integer SV */
		391	SV *sv_result;
		392
219	ENTER;	393	ENTER;
220	SAVETMPS;	394	SAVETMPS;
221	PUSHMARK (SP);	395	PUSHMARK (SP);
222	EXTEND (SP, 1);	396	EXTEND (SP, 1);
223		397
		398	/* do not recreate the result IV from scratch each time */
		399	if (expect_true (sv_result_cache))
		400	{
		401	sv_result = sv_result_cache; sv_result_cache = 0;
		402	SvIV_set (sv_result, req->result);
		403	SvIOK_only (sv_result);
		404	}
		405	else
		406	{
		407	sv_result = newSViv (req->result);
		408	SvREADONLY_on (sv_result);
		409	}
		410
224	switch (req->type)	411	switch (req->type)
225	{	412	{
		413	case EIO_WD_OPEN:
		414	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		415	break;
		416
226	case EIO_READDIR:	417	case EIO_READDIR:
227	{	418	{
228	SV *rv = &PL_sv_undef;	419	SV *rv = &PL_sv_undef;
229		420
230	if (req->result >= 0)	421	if (req->result >= 0)
231	{	422	{
232	int i;	423	int i;
233	char *buf = req->ptr2;	424	char *names = (char *)req->ptr2;
		425	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234	AV *av = newAV ();	426	AV *av = newAV ();
235		427
236	av_extend (av, req->result - 1);	428	av_extend (av, req->result - 1);
237		429
238	for (i = 0; i < req->result; ++i)	430	for (i = 0; i < req->result; ++i)
239	{	431	{
240	SV *sv = newSVpv (buf, 0);	432	if (req->int1 & EIO_READDIR_DENTS)
		433	{
		434	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
241		435
		436	if (req->int1 & EIO_READDIR_CUSTOM2)
		437	{
		438	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		439	AV *avent = newAV ();
		440
		441	av_extend (avent, 2);
		442
		443	if (!sv_type [ent->type])
		444	{
		445	sv_type [ent->type] = newSViv (ent->type);
		446	SvREADONLY_on (sv_type [ent->type]);
		447	}
		448
		449	av_store (avent, 0, namesv);
		450	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		451	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		452
		453	av_store (av, i, newRV_noinc ((SV *)avent));
		454	}
		455	else
242	av_store (av, i, sv);	456	av_store (av, i, namesv);
		457
		458	++ent;
		459	}
		460	else
		461	{
		462	SV *name = newSVpv (names, 0);
		463	av_store (av, i, name);
243	buf += SvCUR (sv) + 1;	464	names += SvCUR (name) + 1;
		465	}
244	}	466	}
245		467
246	rv = sv_2mortal (newRV_noinc ((SV *)av));	468	rv = sv_2mortal (newRV_noinc ((SV *)av));
247	}	469	}
248		470
249	PUSHs (rv);	471	PUSHs (rv);
		472
		473	if (req->int1 & EIO_READDIR_CUSTOM1)
		474	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
250	}	475	}
251	break;	476	break;
252		477
253	case EIO_OPEN:	478	case EIO_OPEN:
254	{	479	{
…		…
260	GV *gv = (GV *)sv_newmortal ();	485	GV *gv = (GV *)sv_newmortal ();
261	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	486	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
262	char sym [64];	487	char sym [64];
263	int symlen;	488	int symlen;
264		489
265	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	490	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
266	gv_init (gv, stash, sym, symlen, 0);	491	gv_init (gv, aio_stash, sym, symlen, 0);
267		492
268	symlen = snprintf (	493	symlen = snprintf (
269	sym,	494	sym,
270	sizeof (sym),	495	sizeof (sym),
271	"%s&=%d",	496	"%s&=%d",
272	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	497	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
273	req->result	498	(int)req->result
274	);	499	);
275		500
276	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	501	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
277	fh = (SV *)gv;	502	fh = (SV *)gv;
278	}	503	}
279		504
280	PUSHs (fh);	505	PUSHs (fh);
281	}	506	}
		507	break;
		508
		509	case EIO_STATVFS:
		510	case EIO_FSTATVFS:
		511	{
		512	SV *rv = &PL_sv_undef;
		513
		514	#ifndef _WIN32
		515	if (req->result >= 0)
		516	{
		517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		518	HV *hv = newHV ();
		519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		520	* chooses to make it a struct.
		521	*/
		522	unsigned long fsid = 0;
		523	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		524
		525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		526
		527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		528	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		529	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		530	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		531	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		532	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		533	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		534	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		535	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		536	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		537	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		538	}
		539	#endif
		540
		541	PUSHs (rv);
		542	}
		543
282	break;	544	break;
283		545
284	case EIO_GROUP:	546	case EIO_GROUP:
285	req->int1 = 2; /* mark group as finished */	547	req->int1 = 2; /* mark group as finished */
286		548
…		…
298	case EIO_NOP:	560	case EIO_NOP:
299	case EIO_BUSY:	561	case EIO_BUSY:
300	break;	562	break;
301		563
302	case EIO_READLINK:	564	case EIO_READLINK:
		565	case EIO_REALPATH:
303	if (req->result > 0)	566	if (req->result > 0)
304	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	567	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
305	break;	568	break;
306		569
307	case EIO_STAT:	570	case EIO_STAT:
308	case EIO_LSTAT:	571	case EIO_LSTAT:
309	case EIO_FSTAT:	572	case EIO_FSTAT:
310	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
311	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
312	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
313	PUSHs (sv_2mortal (newSViv (req->result)));	578
		579	PUSHs (sv_result);
314	break;	580	break;
315		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		584	break;
		585
316	case EIO_READ:	586	case EIO_READ:
		587	{
317	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	588	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
318	*SvEND (req->sv2) = 0;	589	*SvEND (req->sv2) = 0;
319	PUSHs (sv_2mortal (newSViv (req->result)));	590	SvPOK_only (req->sv2);
		591	SvSETMAGIC (req->sv2);
		592	PUSHs (sv_result);
		593	}
320	break;	594	break;
321		595
322	case EIO_DUP2:	596	case EIO_CUSTOM:
		597	if (req->feed == fiemap)
		598	{
		599	#if HAVE_FIEMAP
		600	if (!req->result)
		601	{
		602	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		603
		604	if (fiemap->fm_extent_count)
		605	{
		606	AV *av = newAV ();
		607	int i;
		608
		609	while (fiemap->fm_mapped_extents)
		610	{
		611	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		612	AV *ext_av = newAV ();
		613
		614	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		615	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		616	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		617	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		618
		619	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		620	}
		621
		622	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		623	}
		624	else
		625	{
		626	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		627	PUSHs (sv_result);
		628	}
		629	}
		630	#endif
		631	}
		632	else
		633	PUSHs (sv_result);
		634	break;
		635
		636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
323	if (req->result > 0)	637	if (req->result > 0)
324	req->result = 0;	638	SvIV_set (sv_result, 0);
325	/* FALLTHROUGH */	639	/* FALLTHROUGH */
326		640
327	default:	641	default:
328	PUSHs (sv_2mortal (newSViv (req->result)));	642	PUSHs (sv_result);
329	break;	643	break;
330	}	644	}
331		645
332	errno = req->errorno;	646	errno = req->errorno;
333		647
334	PUTBACK;	648	PUTBACK;
335	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	649	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
336	SPAGAIN;	650	SPAGAIN;
337		651
		652	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		653	SvREFCNT_dec (sv_result);
		654	else
		655	sv_result_cache = sv_result;
		656
338	FREETMPS;	657	FREETMPS;
339	LEAVE;	658	LEAVE;
340		659
341	PUTBACK;	660	PUTBACK;
342	}	661	}
343		662
344	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
345	}	664	}
346		665
		666	static void
347	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
348	{	668	{
349	if (req->self)	669	if (req->self)
350	{	670	{
351	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
352	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
353	}	673	}
354		674
355	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
356	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
357	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
358		680
359	Safefree (req);	681	free (req);
360	}	682	}
361		683
		684	static void
362	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
363	{	686	{
364	aio_req sub;
365
366	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
367	return;	688	return;
368		689
369	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
370	grp->sv2 = 0;	691	grp->sv2 = 0;
371		692
372	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
373	}	694	}
374		695
375	#ifdef USE_SOCKETS_AS_HANDLES	696	static void ecb_cold
376	# define TO_SOCKET(x) (win32_get_osfhandle (x))	697	create_respipe (void)
377	#else	698	{
378	# define TO_SOCKET(x) (x)	699	if (s_epipe_renew (&respipe))
379	#endif	700	croak ("IO::AIO: unable to initialize result pipe");
		701	}
380		702
381	static void	703	static void
382	create_respipe (void)	704	poll_wait (void)
383	{	705	{
384	int old_readfd = respipe [0];
385
386	if (respipe [1] >= 0)
387	respipe_close (TO_SOCKET (respipe [1]));
388
389	#ifdef _WIN32
390	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
391	#else
392	if (pipe (respipe))
393	#endif
394	croak ("unable to initialize result pipe");
395
396	if (old_readfd >= 0)
397	{
398	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
399	croak ("unable to initialize result pipe(2)");
400
401	respipe_close (respipe [0]);
402	respipe [0] = old_readfd;
403	}
404
405	#ifdef _WIN32
406	int arg = 1;
407	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
408	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
409	#else
410	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
411	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
412	#endif
413	croak ("unable to initialize result pipe(3)");
414
415	respipe_osf [0] = TO_SOCKET (respipe [0]);
416	respipe_osf [1] = TO_SOCKET (respipe [1]);
417	}
418
419	static void poll_wait (void)
420	{
421	fd_set rfd;
422
423	while (eio_nreqs ())	706	while (eio_nreqs ())
424	{	707	{
425	int size;	708	int size;
426		709
427	X_LOCK (reslock);	710	X_LOCK (reslock);
…		…
431	if (size)	714	if (size)
432	return;	715	return;
433		716
434	etp_maybe_start_thread ();	717	etp_maybe_start_thread ();
435		718
436	FD_ZERO (&rfd);	719	s_epipe_wait (&respipe);
437	FD_SET (respipe [0], &rfd);
438
439	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
440	}	720	}
441	}	721	}
442		722
443	static int poll_cb (void)	723	static int
		724	poll_cb (void)
444	{	725	{
445	for (;;)	726	for (;;)
446	{	727	{
447	int res = eio_poll ();	728	int res = eio_poll ();
448		729
…		…
454		735
455	poll_wait ();	736	poll_wait ();
456	}	737	}
457	}	738	}
458		739
459	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
460	{	742	{
461	create_respipe ();	743	create_respipe ();
		744
		745	if (eio_init (want_poll, done_poll) < 0)
		746	croak ("IO::AIO: unable to initialise eio library");
462	}	747	}
		748
		749	/*****************************************************************************/
		750
		751	#if !_POSIX_MAPPED_FILES
		752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		753	# define munmap(addr,length) EIO_ENOSYS ()
		754	#endif
		755
		756	#if !_POSIX_MEMORY_PROTECTION
		757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		758	# define PROT_NONE 0
		759	# define PROT_WRITE 0
		760	# define MAP_PRIVATE 0
		761	# define MAP_SHARED 0
		762	# define MAP_FIXED 0
		763	#endif
		764
		765	#define MMAP_MAGIC PERL_MAGIC_ext
		766
		767	static int ecb_cold
		768	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		769	{
		770	int old_errno = errno;
		771	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		772	errno = old_errno;
		773
		774	mg->mg_obj = 0; /* just in case */
		775
		776	SvREADONLY_off (sv);
		777
		778	if (SvPVX (sv) != mg->mg_ptr)
		779	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		780
		781	SvCUR_set (sv, 0);
		782	SvPVX (sv) = 0;
		783	SvOK_off (sv);
		784
		785	return 0;
		786	}
		787
		788	static MGVTBL mmap_vtbl = {
		789	0, 0, 0, 0, mmap_free
		790	};
		791
		792	/*****************************************************************************/
463		793
464	static SV *	794	static SV *
465	get_cb (SV *cb_sv)	795	get_cb (SV *cb_sv)
466	{	796	{
467	HV *st;	797	SvGETMAGIC (cb_sv);
468	GV *gvp;	798	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		799	}
		800
		801	static aio_req ecb_noinline
		802	dreq (SV *callback)
		803	{
469	CV *cv;	804	SV *cb_cv;
		805	aio_req req;
		806	int req_pri = next_pri;
		807	next_pri = EIO_PRI_DEFAULT;
470		808
471	if (!SvOK (cb_sv))	809	cb_cv = get_cb (callback);
		810
		811	req = calloc (sizeof (*req), 1);
		812	if (!req)
		813	croak ("out of memory during eio_req allocation");
		814
		815	req->callback = SvREFCNT_inc (cb_cv);
		816	req->pri = req_pri;
		817
472	return 0;	818	return req;
473
474	cv = sv_2cv (cb_sv, &st, &gvp, 0);
475
476	if (!cv)
477	croak ("IO::AIO callback must be undef or a CODE reference");
478
479	return (SV *)cv;
480	}	819	}
481		820
482	#define dREQ \	821	#define dREQ \
483	SV *cb_cv; \	822	aio_req req = dreq (callback); \
484	aio_req req; \
485	int req_pri = next_pri; \
486	next_pri = EIO_PRI_DEFAULT; \
487	\
488	cb_cv = get_cb (callback); \
489	\
490	Newz (0, req, 1, eio_req); \
491	if (!req) \
492	croak ("out of memory during eio_req allocation"); \
493	\
494	req->callback = SvREFCNT_inc (cb_cv); \
495	req->pri = req_pri
496		823
497	#define REQ_SEND \	824	#define REQ_SEND \
498	PUTBACK; \	825	PUTBACK; \
499	req_submit (req); \	826	req_submit (req); \
500	SPAGAIN; \	827	SPAGAIN; \
501	\	828	\
502	if (GIMME_V != G_VOID) \	829	if (GIMME_V != G_VOID) \
503	XPUSHs (req_sv (req, AIO_REQ_KLASS));	830	XPUSHs (req_sv (req, aio_req_stash));
504		831
505	static int	832	ecb_inline void
506	extract_fd (SV *fh, int wr)	833	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
507	{	834	{
508	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	835	if (expect_false (SvROK (path)))
		836	{
		837	SV *rv = SvRV (path);
		838	SV *wdob;
509		839
510	if (fd < 0)	840	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
511	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");	841	{
		842	path = AvARRAY (rv)[1];
		843	wdob = AvARRAY (rv)[0];
512		844
513	return fd;	845	if (SvOK (wdob))
		846	{
		847	*wd = SvAIO_WD (wdob);
		848	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		849	}
		850	else
		851	*wd = EIO_INVALID_WD;
		852	}
		853	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		854	{
		855	*wd = (aio_wd)(long)SvIVX (rv);
		856	*wdsv = SvREFCNT_inc_NN (rv);
		857	*ptr = ".";
		858	return; /* path set to "." */
		859	}
		860	else
		861	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		862	}
		863
		864	*pathsv = newSVsv (path);
		865	*ptr = SvPVbyte_nolen (*pathsv);
514	}	866	}
		867
		868	static void ecb_noinline
		869	req_set_path1 (aio_req req, SV *path)
		870	{
		871	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		872	}
		873
		874	static void ecb_noinline
		875	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		876	{
		877	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		878
		879	switch (SvTYPE (rv))
		880	{
		881	case SVt_PVIO:
		882	case SVt_PVLV:
		883	case SVt_PVGV:
		884	req->type = type_fh;
		885	req->sv1 = newSVsv (fh_or_path);
		886	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		887	break;
		888
		889	default:
		890	req->type = type_path;
		891	req_set_path1 (req, fh_or_path);
		892	break;
		893	}
		894	}
		895
		896	XS(boot_IO__AIO) ecb_cold;
515		897
516	MODULE = IO::AIO PACKAGE = IO::AIO	898	MODULE = IO::AIO PACKAGE = IO::AIO
517		899
518	PROTOTYPES: ENABLE	900	PROTOTYPES: ENABLE
519		901
520	BOOT:	902	BOOT:
521	{	903	{
		904	static const struct {
		905	const char *name;
		906	IV iv;
		907	} *civ, const_iv[] = {
		908	# define const_niv(name, value) { # name, (IV) value },
		909	# define const_iv(name) { # name, (IV) name },
		910	# define const_eio(name) { # name, (IV) EIO_ ## name },
		911
		912	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		913
		914	const_iv (ENOSYS)
		915	const_iv (EXDEV)
		916	const_iv (EBADR)
		917
		918	const_iv (O_RDONLY)
		919	const_iv (O_WRONLY)
		920	const_iv (O_RDWR)
		921	const_iv (O_CREAT)
		922	const_iv (O_TRUNC)
		923	const_iv (O_EXCL)
		924	const_iv (O_APPEND)
		925
		926	const_iv (O_ASYNC)
		927	const_iv (O_DIRECT)
		928	const_iv (O_NOATIME)
		929
		930	const_iv (O_CLOEXEC)
		931	const_iv (O_NOCTTY)
		932	const_iv (O_NOFOLLOW)
		933	const_iv (O_NONBLOCK)
		934	const_iv (O_EXEC)
		935	const_iv (O_SEARCH)
		936	const_iv (O_DIRECTORY)
		937	const_iv (O_DSYNC)
		938	const_iv (O_RSYNC)
		939	const_iv (O_SYNC)
		940	const_iv (O_TTY_INIT)
		941
		942	const_iv (S_IFIFO)
		943	const_iv (S_IFCHR)
		944	const_iv (S_IFBLK)
		945	const_iv (S_IFLNK)
		946	const_iv (S_IFREG)
		947	const_iv (S_IFDIR)
		948	const_iv (S_IFWHT)
		949	const_iv (S_IFSOCK)
		950	const_iv (S_IFMT)
		951
		952	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		953	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		954	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		955	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		956	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		957	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		958
		959	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		960	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		961	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		962	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		963	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		964
		965	const_iv (ST_RDONLY)
		966	const_iv (ST_NOSUID)
		967	const_iv (ST_NODEV)
		968	const_iv (ST_NOEXEC)
		969	const_iv (ST_SYNCHRONOUS)
		970	const_iv (ST_MANDLOCK)
		971	const_iv (ST_WRITE)
		972	const_iv (ST_APPEND)
		973	const_iv (ST_IMMUTABLE)
		974	const_iv (ST_NOATIME)
		975	const_iv (ST_NODIRATIME)
		976	const_iv (ST_RELATIME)
		977
		978	const_iv (PROT_NONE)
		979	const_iv (PROT_EXEC)
		980	const_iv (PROT_READ)
		981	const_iv (PROT_WRITE)
		982
		983	/*const_iv (MAP_FIXED)*/
		984	const_iv (MAP_PRIVATE)
		985	const_iv (MAP_SHARED)
		986	const_iv (MAP_ANONYMOUS)
		987
		988	/* linuxish */
		989	const_iv (MAP_HUGETLB)
		990	const_iv (MAP_LOCKED)
		991	const_iv (MAP_NORESERVE)
		992	const_iv (MAP_POPULATE)
		993	const_iv (MAP_NONBLOCK)
		994
		995	const_iv (FIEMAP_FLAG_SYNC)
		996	const_iv (FIEMAP_FLAG_XATTR)
		997	const_iv (FIEMAP_FLAGS_COMPAT)
		998	const_iv (FIEMAP_EXTENT_LAST)
		999	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1000	const_iv (FIEMAP_EXTENT_DELALLOC)
		1001	const_iv (FIEMAP_EXTENT_ENCODED)
		1002	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1003	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1004	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1005	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1006	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1007	const_iv (FIEMAP_EXTENT_MERGED)
		1008	const_iv (FIEMAP_EXTENT_SHARED)
		1009
		1010	const_iv (SPLICE_F_MOVE)
		1011	const_iv (SPLICE_F_NONBLOCK)
		1012	const_iv (SPLICE_F_MORE)
		1013	const_iv (SPLICE_F_GIFT)
		1014
		1015	const_iv (SEEK_DATA)
		1016	const_iv (SEEK_HOLE)
		1017
		1018	/* libeio constants */
		1019	const_eio (SEEK_SET)
		1020	const_eio (SEEK_CUR)
		1021	const_eio (SEEK_END)
		1022
		1023	const_eio (MCL_FUTURE)
		1024	const_eio (MCL_CURRENT)
		1025
		1026	const_eio (MS_ASYNC)
		1027	const_eio (MS_INVALIDATE)
		1028	const_eio (MS_SYNC)
		1029
		1030	const_eio (MT_MODIFY)
		1031
		1032	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1033	const_eio (SYNC_FILE_RANGE_WRITE)
		1034	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1035
		1036	const_eio (FALLOC_FL_KEEP_SIZE)
		1037	const_eio (FALLOC_FL_PUNCH_HOLE)
		1038	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1039	const_eio (FALLOC_FL_ZERO_RANGE)
		1040
		1041	const_eio (READDIR_DENTS)
		1042	const_eio (READDIR_DIRS_FIRST)
		1043	const_eio (READDIR_STAT_ORDER)
		1044	const_eio (READDIR_FOUND_UNKNOWN)
		1045
		1046	const_eio (DT_UNKNOWN)
		1047	const_eio (DT_FIFO)
		1048	const_eio (DT_CHR)
		1049	const_eio (DT_DIR)
		1050	const_eio (DT_BLK)
		1051	const_eio (DT_REG)
		1052	const_eio (DT_LNK)
		1053	const_eio (DT_SOCK)
		1054	const_eio (DT_WHT)
		1055	};
		1056
522	stash = gv_stashpv ("IO::AIO", 1);	1057	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1058	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1059	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1060	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
523		1061
524	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1062	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
525	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1063	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
526	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
527	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
528	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
529	#ifndef _WIN32
530	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
531	#endif
532	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
533	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE));
534	newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE));
535	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER));
536		1064
537	create_respipe ();	1065	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
538		1066
539	if (eio_init (want_poll, done_poll) < 0)	1067	reinit ();
540	croak ("IO::AIO: unable to initialise eio library");
541
542	/* atfork child called in fifo order, so before eio's handler */
543	X_THREAD_ATFORK (0, 0, atfork_child);
544	}	1068	}
545		1069
546	void	1070	void
		1071	reinit ()
		1072	PROTOTYPE:
		1073
		1074	void
547	max_poll_reqs (int nreqs)	1075	max_poll_reqs (unsigned int nreqs)
548	PROTOTYPE: $	1076	PROTOTYPE: $
549	CODE:	1077	CODE:
550	eio_set_max_poll_reqs (nreqs);	1078	eio_set_max_poll_reqs (nreqs);
551		1079
552	void	1080	void
…		…
554	PROTOTYPE: $	1082	PROTOTYPE: $
555	CODE:	1083	CODE:
556	eio_set_max_poll_time (nseconds);	1084	eio_set_max_poll_time (nseconds);
557		1085
558	void	1086	void
559	min_parallel (int nthreads)	1087	min_parallel (unsigned int nthreads)
560	PROTOTYPE: $	1088	PROTOTYPE: $
561	CODE:	1089	CODE:
562	eio_set_min_parallel (nthreads);	1090	eio_set_min_parallel (nthreads);
563		1091
564	void	1092	void
565	max_parallel (int nthreads)	1093	max_parallel (unsigned int nthreads)
566	PROTOTYPE: $	1094	PROTOTYPE: $
567	CODE:	1095	CODE:
568	eio_set_max_parallel (nthreads);	1096	eio_set_max_parallel (nthreads);
569		1097
570	void	1098	void
571	max_idle (int nthreads)	1099	max_idle (unsigned int nthreads)
572	PROTOTYPE: $	1100	PROTOTYPE: $
573	CODE:	1101	CODE:
574	eio_set_max_idle (nthreads);	1102	eio_set_max_idle (nthreads);
575		1103
576	void	1104	void
		1105	idle_timeout (unsigned int seconds)
		1106	PROTOTYPE: $
		1107	CODE:
		1108	eio_set_idle_timeout (seconds);
		1109
		1110	void
577	max_outstanding (int maxreqs)	1111	max_outstanding (unsigned int maxreqs)
578	PROTOTYPE: $	1112	PROTOTYPE: $
579	CODE:	1113	CODE:
580	max_outstanding = maxreqs;	1114	max_outstanding = maxreqs;
581		1115
582	void	1116	void
583	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1117	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
584	PROTOTYPE: $$$;$
585	PPCODE:	1118	PPCODE:
586	{	1119	{
587	dREQ;	1120	dREQ;
588		1121
		1122	req->type = EIO_WD_OPEN;
		1123	req_set_path1 (req, pathname);
		1124
		1125	REQ_SEND;
		1126	}
		1127
		1128	void
		1129	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1130	PPCODE:
		1131	{
		1132	dREQ;
		1133
589	req->type = EIO_OPEN;	1134	req->type = EIO_OPEN;
590	req->sv1 = newSVsv (pathname);	1135	req_set_path1 (req, pathname);
591	req->ptr1 = SvPVbyte_nolen (req->sv1);
592	req->int1 = flags;	1136	req->int1 = flags;
593	req->int2 = mode;	1137	req->int2 = mode;
594		1138
595	REQ_SEND;	1139	REQ_SEND;
596	}	1140	}
597		1141
598	void	1142	void
599	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1143	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
600	PROTOTYPE: $;$
601	ALIAS:	1144	ALIAS:
602	aio_fsync = EIO_FSYNC	1145	aio_fsync = EIO_FSYNC
603	aio_fdatasync = EIO_FDATASYNC	1146	aio_fdatasync = EIO_FDATASYNC
		1147	aio_syncfs = EIO_SYNCFS
604	PPCODE:	1148	PPCODE:
605	{	1149	{
606	int fd = extract_fd (fh, 0);	1150	int fd = s_fileno_croak (fh, 0);
607	dREQ;	1151	dREQ;
608		1152
609	req->type = ix;	1153	req->type = ix;
610	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
611	req->int1 = fd;	1155	req->int1 = fd;
612		1156
613	REQ_SEND (req);	1157	REQ_SEND;
614	}	1158	}
615		1159
616	void	1160	void
617	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1161	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
618	PROTOTYPE: $$$$;$
619	PPCODE:	1162	PPCODE:
620	{	1163	{
621	int fd = extract_fd (fh, 0);	1164	int fd = s_fileno_croak (fh, 0);
622	dREQ;	1165	dREQ;
623		1166
624	req->type = EIO_SYNC_FILE_RANGE;	1167	req->type = EIO_SYNC_FILE_RANGE;
625	req->sv1 = newSVsv (fh);	1168	req->sv1 = newSVsv (fh);
626	req->int1 = fd;	1169	req->int1 = fd;
627	req->offs = SvVAL64 (offset);	1170	req->offs = offset;
628	req->size = SvVAL64 (nbytes);	1171	req->size = nbytes;
629	req->int2 = flags;	1172	req->int2 = flags;
630		1173
631	REQ_SEND (req);	1174	REQ_SEND;
632	}	1175	}
633		1176
634	void	1177	void
635	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1178	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
636	PROTOTYPE: $;$
637	PPCODE:	1179	PPCODE:
638	{	1180	{
639	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1181	int fd = s_fileno_croak (fh, 0);
640	int fd = extract_fd (fh, 0);
641	dREQ;	1182	dREQ;
642		1183
643	if (close_pipe < 0)	1184	req->type = EIO_FALLOCATE;
		1185	req->sv1 = newSVsv (fh);
		1186	req->int1 = fd;
		1187	req->int2 = mode;
		1188	req->offs = offset;
		1189	req->size = len;
		1190
		1191	REQ_SEND;
		1192	}
		1193
		1194	void
		1195	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1196	PPCODE:
		1197	{
		1198	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1199	int fd = s_fileno_croak (fh, 0);
		1200	dREQ;
		1201
		1202	if (expect_false (close_fd < 0))
644	{	1203	{
645	int pipefd [2];	1204	int pipefd [2];
646		1205
		1206	if (
		1207	#ifdef _WIN32
		1208	_pipe (pipefd, 1, _O_BINARY) < 0
		1209	#else
647	if (pipe (pipefd) < 0	1210	pipe (pipefd) < 0
648	|| close (pipefd [1]) < 0
649	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1211	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1212	#endif
		1213	|| close (pipefd [1]) < 0
		1214	)
650	abort (); /*D*/	1215	abort (); /*D*/
651		1216
652	close_pipe = pipefd [0];	1217	close_fd = pipefd [0];
653	}	1218	}
654		1219
655	req->type = EIO_DUP2;	1220	req->type = EIO_DUP2;
656	req->int1 = close_pipe;	1221	req->int1 = close_fd;
657	req->sv2 = newSVsv (fh);	1222	req->sv2 = newSVsv (fh);
658	req->int2 = fd;	1223	req->int2 = fd;
659		1224
660	REQ_SEND (req);	1225	REQ_SEND;
661	}	1226	}
662		1227
663	void	1228	void
		1229	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1230	PPCODE:
		1231	{
		1232	int fd = s_fileno_croak (fh, 0);
		1233	dREQ;
		1234
		1235	req->type = EIO_SEEK;
		1236	req->sv1 = newSVsv (fh);
		1237	req->int1 = fd;
		1238	req->offs = SvVAL64 (offset);
		1239	req->int2 = whence;
		1240
		1241	REQ_SEND;
		1242	}
		1243
		1244	void
664	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1245	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
665	ALIAS:	1246	ALIAS:
666	aio_read = EIO_READ	1247	aio_read = EIO_READ
667	aio_write = EIO_WRITE	1248	aio_write = EIO_WRITE
668	PROTOTYPE: $$$$$;$
669	PPCODE:	1249	PPCODE:
670	{	1250	{
671	STRLEN svlen;	1251	STRLEN svlen;
		1252	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
672	char *svptr = SvPVbyte (data, svlen);	1253	char *svptr = SvPVbyte (data, svlen);
673	UV len = SvUV (length);	1254	UV len = SvUV (length);
674	int fd;
675
676	if (SvTYPE (data) > SVt_PVMG)
677	croak ("illegal data argument '%s', must be plain scalar string", SvPV_nolen (data));
678
679	SvUPGRADE (data, SVt_PV);
680	SvPOK_only (data);
681		1255
682	if (dataoffset < 0)	1256	if (dataoffset < 0)
683	dataoffset += svlen;	1257	dataoffset += svlen;
684		1258
685	if (dataoffset < 0 || dataoffset > svlen)	1259	if (dataoffset < 0 || dataoffset > svlen)
…		…
691	if (!SvOK (length) || len + dataoffset > svlen)	1265	if (!SvOK (length) || len + dataoffset > svlen)
692	len = svlen - dataoffset;	1266	len = svlen - dataoffset;
693	}	1267	}
694	else	1268	else
695	{	1269	{
696	/* read: grow scalar as necessary */	1270	/* read: check type and grow scalar as necessary */
		1271	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
697	svptr = SvGROW (data, len + dataoffset + 1);	1272	svptr = sv_grow (data, len + dataoffset + 1);
		1273	else if (SvCUR (data) < len + dataoffset)
		1274	croak ("length + dataoffset outside of scalar, and cannot grow");
698	}	1275	}
699
700	if (len < 0)
701	croak ("length must not be negative");
702
703	fd = extract_fd (fh, ix == EIO_WRITE);
704		1276
705	{	1277	{
706	dREQ;	1278	dREQ;
707		1279
708	req->type = ix;	1280	req->type = ix;
…		…
723	REQ_SEND;	1295	REQ_SEND;
724	}	1296	}
725	}	1297	}
726		1298
727	void	1299	void
728	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1300	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
729	PROTOTYPE: $$;$	1301	ALIAS:
		1302	aio_readlink = EIO_READLINK
		1303	aio_realpath = EIO_REALPATH
730	PPCODE:	1304	PPCODE:
731	{	1305	{
732	SV *data;
733	dREQ;	1306	dREQ;
734		1307
735	req->type = EIO_READLINK;	1308	req->type = ix;
736	req->sv1 = newSVsv (path);	1309	req_set_path1 (req, pathname);
737	req->ptr1 = SvPVbyte_nolen (req->sv1);
738		1310
739	REQ_SEND;	1311	REQ_SEND;
740	}	1312	}
741		1313
742	void	1314	void
743	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1315	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
744	PROTOTYPE: $$$$;$
745	PPCODE:	1316	PPCODE:
746	{	1317	{
747	int ifd = extract_fd (in_fh , 0);	1318	int ifd = s_fileno_croak (in_fh , 0);
748	int ofd = extract_fd (out_fh, 0);	1319	int ofd = s_fileno_croak (out_fh, 1);
749	dREQ;	1320	dREQ;
750		1321
751	req->type = EIO_SENDFILE;	1322	req->type = EIO_SENDFILE;
752	req->sv1 = newSVsv (out_fh);	1323	req->sv1 = newSVsv (out_fh);
753	req->int1 = ofd;	1324	req->int1 = ofd;
754	req->sv2 = newSVsv (in_fh);	1325	req->sv2 = newSVsv (in_fh);
755	req->int2 = ifd;	1326	req->int2 = ifd;
756	req->offs = SvVAL64 (in_offset);	1327	req->offs = in_offset;
757	req->size = length;	1328	req->size = length;
758		1329
759	REQ_SEND;	1330	REQ_SEND;
760	}	1331	}
761		1332
762	void	1333	void
763	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1334	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
764	PROTOTYPE: $$$;$
765	PPCODE:	1335	PPCODE:
766	{	1336	{
767	int fd = extract_fd (fh, 0);	1337	int fd = s_fileno_croak (fh, 0);
768	dREQ;	1338	dREQ;
769		1339
770	req->type = EIO_READAHEAD;	1340	req->type = EIO_READAHEAD;
771	req->sv1 = newSVsv (fh);	1341	req->sv1 = newSVsv (fh);
772	req->int1 = fd;	1342	req->int1 = fd;
773	req->offs = SvVAL64 (offset);	1343	req->offs = offset;
774	req->size = length;	1344	req->size = length;
775		1345
776	REQ_SEND;	1346	REQ_SEND;
777	}	1347	}
778		1348
779	void	1349	void
780	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1350	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
781	ALIAS:	1351	ALIAS:
782	aio_stat = EIO_STAT	1352	aio_stat = EIO_STAT
783	aio_lstat = EIO_LSTAT	1353	aio_lstat = EIO_LSTAT
		1354	aio_statvfs = EIO_STATVFS
784	PPCODE:	1355	PPCODE:
785	{	1356	{
786	dREQ;	1357	dREQ;
787		1358
788	req->sv1 = newSVsv (fh_or_path);	1359	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
789
790	if (SvPOK (req->sv1))
791	{
792	req->type = ix;
793	req->ptr1 = SvPVbyte_nolen (req->sv1);
794	}
795	else
796	{
797	req->type = EIO_FSTAT;
798	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
799	}
800		1360
801	REQ_SEND;	1361	REQ_SEND;
802	}	1362	}
803		1363
		1364	UV
		1365	major (UV dev)
		1366	ALIAS:
		1367	minor = 1
		1368	CODE:
		1369	RETVAL = ix ? major (dev) : minor (dev);
		1370	OUTPUT:
		1371	RETVAL
		1372
		1373	UV
		1374	makedev (UV maj, UV min)
		1375	CODE:
		1376	RETVAL = makedev (maj, min);
		1377	OUTPUT:
		1378	RETVAL
		1379
804	void	1380	void
805	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1381	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
806	PPCODE:	1382	PPCODE:
807	{	1383	{
808	dREQ;	1384	dREQ;
809		1385
810	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1386	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
811	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1387	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
812	req->sv1 = newSVsv (fh_or_path);	1388	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
813
814	if (SvPOK (req->sv1))
815	{
816	req->type = EIO_UTIME;
817	req->ptr1 = SvPVbyte_nolen (req->sv1);
818	}
819	else
820	{
821	req->type = EIO_FUTIME;
822	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823	}
824		1389
825	REQ_SEND;	1390	REQ_SEND;
826	}	1391	}
827		1392
828	void	1393	void
829	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1394	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
830	PPCODE:	1395	PPCODE:
831	{	1396	{
832	dREQ;	1397	dREQ;
833		1398
834	req->sv1 = newSVsv (fh_or_path);
835	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1399	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
836		1400	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
837	if (SvPOK (req->sv1))
838	{
839	req->type = EIO_TRUNCATE;
840	req->ptr1 = SvPVbyte_nolen (req->sv1);
841	}
842	else
843	{
844	req->type = EIO_FTRUNCATE;
845	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
846	}
847		1401
848	REQ_SEND;	1402	REQ_SEND;
849	}	1403	}
850		1404
851	void	1405	void
852	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1406	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
853	ALIAS:
854	aio_chmod = EIO_CHMOD
855	aio_mkdir = EIO_MKDIR
856	PPCODE:	1407	PPCODE:
857	{	1408	{
858	dREQ;	1409	dREQ;
859		1410
860	req->int2 = mode;	1411	req->int2 = mode;
861	req->sv1 = newSVsv (fh_or_path);	1412	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
862
863	if (SvPOK (req->sv1))
864	{
865	req->type = ix;
866	req->ptr1 = SvPVbyte_nolen (req->sv1);
867	}
868	else
869	{
870	req->type = EIO_FCHMOD;
871	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
872	}
873		1413
874	REQ_SEND;	1414	REQ_SEND;
875	}	1415	}
876		1416
877	void	1417	void
878	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1418	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
879	PPCODE:	1419	PPCODE:
880	{	1420	{
881	dREQ;	1421	dREQ;
882		1422
883	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1423	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
884	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1424	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
885	req->sv1 = newSVsv (fh_or_path);	1425	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
886
887	if (SvPOK (req->sv1))
888	{
889	req->type = EIO_CHOWN;
890	req->ptr1 = SvPVbyte_nolen (req->sv1);
891	}
892	else
893	{
894	req->type = EIO_FCHOWN;
895	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
896	}
897		1426
898	REQ_SEND;	1427	REQ_SEND;
899	}	1428	}
900		1429
901	void	1430	void
		1431	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1432	PPCODE:
		1433	{
		1434	dREQ;
		1435
		1436	req->type = EIO_READDIR;
		1437	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1438
		1439	if (flags & EIO_READDIR_DENTS)
		1440	req->int1 |= EIO_READDIR_CUSTOM2;
		1441
		1442	req_set_path1 (req, pathname);
		1443
		1444	REQ_SEND;
		1445	}
		1446
		1447	void
		1448	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1449	PPCODE:
		1450	{
		1451	dREQ;
		1452
		1453	req->type = EIO_MKDIR;
		1454	req->int2 = mode;
		1455	req_set_path1 (req, pathname);
		1456
		1457	REQ_SEND;
		1458	}
		1459
		1460	void
902	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1461	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
903	ALIAS:	1462	ALIAS:
904	aio_unlink = EIO_UNLINK	1463	aio_unlink = EIO_UNLINK
905	aio_rmdir = EIO_RMDIR	1464	aio_rmdir = EIO_RMDIR
906	aio_readdir = EIO_READDIR	1465	aio_readdir = EIO_READDIR
907	PPCODE:	1466	PPCODE:
908	{	1467	{
909	dREQ;	1468	dREQ;
910		1469
911	req->type = ix;	1470	req->type = ix;
912	req->sv1 = newSVsv (pathname);	1471	req_set_path1 (req, pathname);
913	req->ptr1 = SvPVbyte_nolen (req->sv1);
914		1472
915	REQ_SEND;	1473	REQ_SEND;
916	}	1474	}
917		1475
918	void	1476	void
919	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1477	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
920	ALIAS:	1478	ALIAS:
921	aio_link = EIO_LINK	1479	aio_link = EIO_LINK
922	aio_symlink = EIO_SYMLINK	1480	aio_symlink = EIO_SYMLINK
923	aio_rename = EIO_RENAME	1481	aio_rename = EIO_RENAME
924	PPCODE:	1482	PPCODE:
925	{	1483	{
		1484	eio_wd wd2 = 0;
926	dREQ;	1485	dREQ;
927		1486
928	req->type = ix;	1487	req->type = ix;
929	req->sv1 = newSVsv (oldpath);	1488	req_set_path1 (req, oldpath);
930	req->ptr1 = SvPVbyte_nolen (req->sv1);	1489	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
931	req->sv2 = newSVsv (newpath);	1490	req->int3 = (long)wd2;
932	req->ptr2 = SvPVbyte_nolen (req->sv2);
933		1491
934	REQ_SEND;	1492	REQ_SEND;
935	}	1493	}
936		1494
937	void	1495	void
938	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1496	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
939	PPCODE:	1497	PPCODE:
940	{	1498	{
941	dREQ;	1499	dREQ;
942		1500
943	req->type = EIO_MKNOD;	1501	req->type = EIO_MKNOD;
944	req->sv1 = newSVsv (pathname);
945	req->ptr1 = SvPVbyte_nolen (req->sv1);
946	req->int2 = (mode_t)mode;	1502	req->int2 = (mode_t)mode;
947	req->offs = dev;	1503	req->offs = dev;
		1504	req_set_path1 (req, pathname);
948		1505
949	REQ_SEND;	1506	REQ_SEND;
950	}	1507	}
951		1508
952	void	1509	void
		1510	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
		1511	ALIAS:
		1512	aio_mtouch = EIO_MTOUCH
		1513	aio_msync = EIO_MSYNC
		1514	PPCODE:
		1515	{
		1516	STRLEN svlen;
		1517	char *svptr = SvPVbyte (data, svlen);
		1518	UV len = SvUV (length);
		1519
		1520	if (offset < 0)
		1521	offset += svlen;
		1522
		1523	if (offset < 0 || offset > svlen)
		1524	croak ("offset outside of scalar");
		1525
		1526	if (!SvOK (length) || len + offset > svlen)
		1527	len = svlen - offset;
		1528
		1529	{
		1530	dREQ;
		1531
		1532	req->type = ix;
		1533	req->sv2 = SvREFCNT_inc (data);
		1534	req->ptr2 = (char *)svptr + offset;
		1535	req->size = len;
		1536	req->int1 = flags;
		1537
		1538	REQ_SEND;
		1539	}
		1540	}
		1541
		1542	void
		1543	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1544	PPCODE:
		1545	{
		1546	STRLEN svlen;
		1547	char *svptr = SvPVbyte (data, svlen);
		1548	UV len = SvUV (length);
		1549
		1550	if (offset < 0)
		1551	offset += svlen;
		1552
		1553	if (offset < 0 || offset > svlen)
		1554	croak ("offset outside of scalar");
		1555
		1556	if (!SvOK (length) || len + offset > svlen)
		1557	len = svlen - offset;
		1558
		1559	{
		1560	dREQ;
		1561
		1562	req->type = EIO_MLOCK;
		1563	req->sv2 = SvREFCNT_inc (data);
		1564	req->ptr2 = (char *)svptr + offset;
		1565	req->size = len;
		1566
		1567	REQ_SEND;
		1568	}
		1569	}
		1570
		1571	void
		1572	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1573	PPCODE:
		1574	{
		1575	dREQ;
		1576
		1577	req->type = EIO_MLOCKALL;
		1578	req->int1 = flags;
		1579
		1580	REQ_SEND;
		1581	}
		1582
		1583	void
		1584	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1585	PPCODE:
		1586	{
		1587	int fd = s_fileno_croak (fh, 0);
		1588	dREQ;
		1589
		1590	req->type = EIO_CUSTOM;
		1591	req->sv1 = newSVsv (fh);
		1592	req->int1 = fd;
		1593
		1594	req->feed = fiemap;
		1595	#if HAVE_FIEMAP
		1596	/* keep our fingers crossed that the next two types are 64 bit */
		1597	req->offs = start;
		1598	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1599	req->int2 = flags;
		1600	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1601	#endif
		1602
		1603	REQ_SEND;
		1604	}
		1605
		1606	void
953	aio_busy (double delay, SV *callback=&PL_sv_undef)	1607	aio_busy (double delay, SV *callback = &PL_sv_undef)
954	PPCODE:	1608	PPCODE:
955	{	1609	{
956	dREQ;	1610	dREQ;
957		1611
958	req->type = EIO_BUSY;	1612	req->type = EIO_BUSY;
…		…
960		1614
961	REQ_SEND;	1615	REQ_SEND;
962	}	1616	}
963		1617
964	void	1618	void
965	aio_group (SV *callback=&PL_sv_undef)	1619	aio_group (SV *callback = &PL_sv_undef)
966	PROTOTYPE: ;$
967	PPCODE:	1620	PPCODE:
968	{	1621	{
969	dREQ;	1622	dREQ;
970		1623
971	req->type = EIO_GROUP;	1624	req->type = EIO_GROUP;
972		1625
		1626	PUTBACK;
973	req_submit (req);	1627	req_submit (req);
		1628	SPAGAIN;
		1629
974	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1630	XPUSHs (req_sv (req, aio_grp_stash));
975	}	1631	}
976		1632
977	void	1633	void
978	aio_nop (SV *callback=&PL_sv_undef)	1634	aio_nop (SV *callback = &PL_sv_undef)
979	ALIAS:	1635	ALIAS:
980	aio_nop = EIO_NOP	1636	aio_nop = EIO_NOP
981	aio_sync = EIO_SYNC	1637	aio_sync = EIO_SYNC
982	PPCODE:	1638	PPCODE:
983	{	1639	{
…		…
987		1643
988	REQ_SEND;	1644	REQ_SEND;
989	}	1645	}
990		1646
991	int	1647	int
992	aioreq_pri (int pri = 0)	1648	aioreq_pri (int pri = NO_INIT)
993	PROTOTYPE: ;$
994	CODE:	1649	CODE:
995	RETVAL = next_pri;	1650	RETVAL = next_pri;
996	if (items > 0)	1651	if (items > 0)
997	{	1652	{
998	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1653	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1010	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1665	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1011	next_pri = nice;	1666	next_pri = nice;
1012		1667
1013	void	1668	void
1014	flush ()	1669	flush ()
1015	PROTOTYPE:
1016	CODE:	1670	CODE:
1017	while (eio_nreqs ())	1671	while (eio_nreqs ())
1018	{	1672	{
1019	poll_wait ();	1673	poll_wait ();
1020	poll_cb ();	1674	poll_cb ();
1021	}	1675	}
1022		1676
1023	int	1677	int
1024	poll()	1678	poll ()
1025	PROTOTYPE:
1026	CODE:	1679	CODE:
1027	poll_wait ();	1680	poll_wait ();
1028	RETVAL = poll_cb ();	1681	RETVAL = poll_cb ();
1029	OUTPUT:	1682	OUTPUT:
1030	RETVAL	1683	RETVAL
1031		1684
1032	int	1685	int
1033	poll_fileno()	1686	poll_fileno ()
1034	PROTOTYPE:
1035	CODE:	1687	CODE:
1036	RETVAL = respipe [0];	1688	RETVAL = s_epipe_fd (&respipe);
1037	OUTPUT:	1689	OUTPUT:
1038	RETVAL	1690	RETVAL
1039		1691
1040	int	1692	int
1041	poll_cb(...)	1693	poll_cb (...)
1042	PROTOTYPE:	1694	PROTOTYPE:
1043	CODE:	1695	CODE:
1044	RETVAL = poll_cb ();	1696	RETVAL = poll_cb ();
1045	OUTPUT:	1697	OUTPUT:
1046	RETVAL	1698	RETVAL
1047		1699
1048	void	1700	void
1049	poll_wait()	1701	poll_wait ()
1050	PROTOTYPE:
1051	CODE:	1702	CODE:
1052	poll_wait ();	1703	poll_wait ();
1053		1704
1054	int	1705	int
1055	nreqs()	1706	nreqs ()
1056	PROTOTYPE:
1057	CODE:	1707	CODE:
1058	RETVAL = eio_nreqs ();	1708	RETVAL = eio_nreqs ();
1059	OUTPUT:	1709	OUTPUT:
1060	RETVAL	1710	RETVAL
1061		1711
1062	int	1712	int
1063	nready()	1713	nready ()
1064	PROTOTYPE:
1065	CODE:	1714	CODE:
1066	RETVAL = eio_nready ();	1715	RETVAL = eio_nready ();
1067	OUTPUT:	1716	OUTPUT:
1068	RETVAL	1717	RETVAL
1069		1718
1070	int	1719	int
1071	npending()	1720	npending ()
1072	PROTOTYPE:
1073	CODE:	1721	CODE:
1074	RETVAL = eio_npending ();	1722	RETVAL = eio_npending ();
1075	OUTPUT:	1723	OUTPUT:
1076	RETVAL	1724	RETVAL
1077		1725
1078	int	1726	int
1079	nthreads()	1727	nthreads ()
1080	PROTOTYPE:
1081	CODE:	1728	CODE:
1082	RETVAL = eio_nthreads ();	1729	RETVAL = eio_nthreads ();
1083	OUTPUT:	1730	OUTPUT:
1084	RETVAL	1731	RETVAL
1085		1732
		1733	int
		1734	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1735	CODE:
		1736	RETVAL = posix_fadvise (fh, offset, length, advice);
		1737	OUTPUT:
		1738	RETVAL
		1739
		1740	IV
		1741	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1742	CODE:
		1743	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1744	OUTPUT:
		1745	RETVAL
		1746
		1747	void
		1748	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1749	PPCODE:
		1750	sv_unmagic (scalar, MMAP_MAGIC);
		1751	{
		1752	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1753	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1754	if (addr == (void *)-1)
		1755	XSRETURN_NO;
		1756
		1757	sv_force_normal (scalar);
		1758
		1759	/* we store the length in mg_obj, as namlen is I32 :/ */
		1760	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1761	->mg_obj = (SV *)length;
		1762
		1763	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1764
		1765	if (!(prot & PROT_WRITE))
		1766	SvREADONLY_on (scalar);
		1767
		1768	if (SvLEN (scalar))
		1769	Safefree (SvPVX (scalar));
		1770
		1771	SvPVX (scalar) = (char *)addr;
		1772	SvCUR_set (scalar, length);
		1773	SvLEN_set (scalar, 0);
		1774	SvPOK_only (scalar);
		1775
		1776	XSRETURN_YES;
		1777	}
		1778
		1779	void
		1780	munmap (SV *scalar)
		1781	CODE:
		1782	sv_unmagic (scalar, MMAP_MAGIC);
		1783
		1784	int
		1785	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1786	ALIAS:
		1787	mprotect = 1
		1788	CODE:
		1789	{
		1790	STRLEN svlen;
		1791	void *addr = SvPVbyte (scalar, svlen);
		1792	STRLEN len = SvUV (length);
		1793
		1794	if (offset < 0)
		1795	offset += svlen;
		1796
		1797	if (offset < 0 || offset > svlen)
		1798	croak ("offset outside of scalar");
		1799
		1800	if (!SvOK (length) || len + offset > svlen)
		1801	len = svlen - offset;
		1802
		1803	addr = (void *)(((intptr_t)addr) + offset);
		1804	eio_page_align (&addr, &len);
		1805
		1806	switch (ix)
		1807	{
		1808	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1809	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1810	}
		1811	}
		1812	OUTPUT:
		1813	RETVAL
		1814
		1815	int
		1816	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1817	CODE:
		1818	{
		1819	STRLEN svlen;
		1820	void *addr = SvPVbyte (scalar, svlen);
		1821	size_t len = SvUV (length);
		1822
		1823	if (offset < 0)
		1824	offset += svlen;
		1825
		1826	if (offset < 0 || offset > svlen)
		1827	croak ("offset outside of scalar");
		1828
		1829	if (!SvOK (length) || len + offset > svlen)
		1830	len = svlen - offset;
		1831
		1832	addr = (void *)(((intptr_t)addr) + offset);
		1833	eio_page_align (&addr, &len);
		1834	#if _POSIX_MEMLOCK_RANGE
		1835	RETVAL = munlock (addr, len);
		1836	#else
		1837	RETVAL = EIO_ENOSYS ();
		1838	#endif
		1839	}
		1840	OUTPUT:
		1841	RETVAL
		1842
		1843	int
		1844	munlockall ()
		1845	CODE:
		1846	#if _POSIX_MEMLOCK
		1847	munlockall ();
		1848	#else
		1849	RETVAL = EIO_ENOSYS ();
		1850	#endif
		1851	OUTPUT:
		1852	RETVAL
		1853
		1854	int
		1855	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1856	CODE:
		1857	{
		1858	#if HAVE_LINUX_SPLICE
		1859	loff_t off_in_, off_out_;
		1860	RETVAL = splice (
		1861	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1862	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1863	length, flags
		1864	);
		1865	#else
		1866	RETVAL = EIO_ENOSYS ();
		1867	#endif
		1868	}
		1869	OUTPUT:
		1870	RETVAL
		1871
		1872	int
		1873	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1874	CODE:
		1875	#if HAVE_LINUX_SPLICE
		1876	RETVAL = tee (rfh, wfh, length, flags);
		1877	#else
		1878	RETVAL = EIO_ENOSYS ();
		1879	#endif
		1880	OUTPUT:
		1881	RETVAL
		1882
		1883	int
		1884	pipesize (aio_rfd rfh, int new_size = -1)
		1885	PROTOTYPE: $;$
		1886	CODE:
		1887	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1888	if (new_size >= 0)
		1889	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1890	else
		1891	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1892	#else
		1893	errno = ENOSYS;
		1894	RETVAL = -1;
		1895	#endif
		1896	OUTPUT:
		1897	RETVAL
		1898
1086	void _on_next_submit (SV *cb)	1899	void _on_next_submit (SV *cb)
1087	CODE:	1900	CODE:
1088	SvREFCNT_dec (on_next_submit);	1901	SvREFCNT_dec (on_next_submit);
1089	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1902	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1090		1903
1091	PROTOTYPES: DISABLE	1904	PROTOTYPES: DISABLE
1092		1905
		1906	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1907
		1908	BOOT:
		1909	{
		1910	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1911	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1912	}
		1913
		1914	void
		1915	DESTROY (SV *self)
		1916	CODE:
		1917	{
		1918	aio_wd wd = SvAIO_WD (self);
		1919	#if HAVE_AT
		1920	{
		1921	SV *callback = &PL_sv_undef;
		1922	dREQ; /* clobbers next_pri :/ */
		1923	next_pri = req->pri; /* restore next_pri */
		1924	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1925	req->type = EIO_WD_CLOSE;
		1926	req->wd = wd;
		1927	REQ_SEND;
		1928	}
		1929	#else
		1930	eio_wd_close_sync (wd);
		1931	#endif
		1932	}
		1933
1093	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1934	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1094		1935
1095	void	1936	void
1096	cancel (aio_req_ornot req)	1937	cancel (aio_req_ornot req)
1097	CODE:	1938	CODE:
1098	eio_cancel (req);	1939	eio_cancel (req);
1099		1940
1100	void	1941	void
1101	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1942	cb (aio_req_ornot req, SV *callback = NO_INIT)
1102	PPCODE:	1943	PPCODE:
1103	{	1944	{
1104	if (GIMME_V != G_VOID)	1945	if (GIMME_V != G_VOID)
1105	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1946	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1106		1947
…		…
1151	AV *av;	1992	AV *av;
1152		1993
1153	grp->errorno = errno;	1994	grp->errorno = errno;
1154		1995
1155	av = newAV ();	1996	av = newAV ();
		1997	av_extend (av, items - 1);
1156		1998
1157	for (i = 1; i < items; ++i )	1999	for (i = 1; i < items; ++i )
1158	av_push (av, newSVsv (ST (i)));	2000	av_push (av, newSVsv (ST (i)));
1159		2001
1160	SvREFCNT_dec (grp->sv1);	2002	SvREFCNT_dec (grp->sv1);
…		…
1170	limit (aio_req grp, int limit)	2012	limit (aio_req grp, int limit)
1171	CODE:	2013	CODE:
1172	eio_grp_limit (grp, limit);	2014	eio_grp_limit (grp, limit);
1173		2015
1174	void	2016	void
1175	feed (aio_req grp, SV *callback=&PL_sv_undef)	2017	feed (aio_req grp, SV *callback = &PL_sv_undef)
1176	CODE:	2018	CODE:
1177	{	2019	{
1178	SvREFCNT_dec (grp->sv2);	2020	SvREFCNT_dec (grp->sv2);
1179	grp->sv2 = newSVsv (callback);	2021	grp->sv2 = newSVsv (callback);
1180	grp->feed = aio_grp_feed;	2022	grp->feed = aio_grp_feed;

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