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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.115 by root, Sat May 10 18:06:41 2008 UTC vs.
Revision 1.242 by root, Tue Jul 12 20:46:33 2016 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. on't complain if this fails for you.
		27	*/
		28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		29	# include <linux/fs.h>
		30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
		32	# include <linux/fiemap.h>
		33	# define HAVE_FIEMAP 1
		34	# endif
		35	#endif
		36
		37	/* perl namespace pollution */
		38	#undef VERSION
		39
		40	/* perl stupidly overrides readdir and maybe others */
		41	/* with thread-unsafe versions, imagine that :( */
		42	#undef readdir
		43	#undef opendir
		44	#undef closedir
		45
18	#ifdef _WIN32	46	#ifdef _WIN32
19		47
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
25	# undef open	52	#undef open
26	# undef read	53	#undef read
27	# undef write	54	#undef write
28	# undef send	55	#undef send
29	# undef recv	56	#undef recv
30	# undef stat	57	#undef stat
		58	#undef lstat
31	# undef fstat	59	#undef fstat
32	# define lstat stat
33	# undef truncate	60	#undef truncate
34	# undef ftruncate	61	#undef ftruncate
35	# undef open	62	#undef open
		63	#undef link
36	# undef close	64	#undef close
37	# undef unlink	65	#undef unlink
		66	#undef mkdir
38	# undef rmdir	67	#undef rmdir
39	# undef rename	68	#undef rename
40	# undef lseek	69	#undef lseek
		70	#undef opendir
		71	#undef readdir
		72	#undef closedir
		73	#undef chmod
		74	#undef fchmod
		75	#undef dup
		76	#undef dup2
		77	#undef abort
		78	#undef pipe
41		79
42	# define chown(a,b,c) (errno = ENOSYS, -1)	80	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	81	#define EIO_STRUCT_STATI64
44	# define fchmod(a,b) (errno = ENOSYS, -1)
45	# define symlink(a,b) (errno = ENOSYS, -1)
46	# define readlink(a,b,c) (errno = ENOSYS, -1)
47	# define mknod(a,b,c) (errno = ENOSYS, -1)
48	# define truncate(a,b) (errno = ENOSYS, -1)
49	# define ftruncate(fd,o) chsize ((fd), (o))
50	# define fsync(fd) _commit (fd)
51	# define opendir(fd) (errno = ENOSYS, 0)
52	# define readdir(fd) (errno = ENOSYS, -1)
53	# define closedir(fd) (errno = ENOSYS, -1)
54	# define mkdir(a,b) mkdir (a)
55		82
56	#else	83	#else
57		84
58	# include <sys/time.h>	85	#include <sys/time.h>
59	# include <sys/select.h>	86	#include <sys/select.h>
60	# include <unistd.h>	87	#include <unistd.h>
61	# include <utime.h>	88	#include <utime.h>
62	# include <signal.h>	89	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		90
65	#endif
66
67	#define EIO_STRUCT_STAT Stat_t	91	#define EIO_STRUCT_STAT Stat_t
68		92
69	/* use NV for 32 bit perls as it allows larger offsets */	93	#endif
70	#if IVSIZE >= 8	94
71	# define SvVAL64 SvIV	95	/*****************************************************************************/
		96
		97	#if __GNUC__ >= 3
		98	# define expect(expr,value) __builtin_expect ((expr),(value))
72	#else	99	#else
73	# define SvVAL64 SvNV	100	# define expect(expr,value) (expr)
74	#endif	101	#endif
75		102
76	static HV *stash;	103	#define expect_false(expr) expect ((expr) != 0, 0)
		104	#define expect_true(expr) expect ((expr) != 0, 1)
		105
		106	/*****************************************************************************/
		107
77	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 */
78		111
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		113
82	#define EIO_COMMON \	114	#define EIO_REQ_MEMBERS \
83	SV *callback; \	115	SV *callback; \
84	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
85	STRLEN stroffset; \	118	STRLEN stroffset; \
86	SV *self	119	SV *self;
87		120
		121	#define EIO_NO_WRAPPERS 1
		122
		123	#include "libeio/config.h"
88	#include "libeio/eio.h"	124	#include "libeio/eio.h"
89		125
90	static int req_invoke (eio_req *req);	126	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	127	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	129	#define EIO_DESTROY(req) req_destroy (req)
		130
		131	#include "libeio/eio.c"
		132
		133	#if !HAVE_POSIX_FADVISE
		134	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#if !HAVE_POSIX_MADVISE
		138	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		139	#endif
		140
		141	#ifndef MAP_ANONYMOUS
		142	# ifdef MAP_ANON
		143	# define MAP_ANONYMOUS MAP_ANON
		144	# else
		145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		146	# endif
		147	#endif
		148
		149	/* defines all sorts of constants to 0 unless they are already defined */
		150	/* also provides const_iv_ and const_niv_ macros for them */
		151	#include "def0.h"
		152
		153	#ifndef makedev
		154	# define makedev(maj,min) (((maj) << 8) | (min))
		155	#endif
		156	#ifndef major
		157	# define major(dev) ((dev) >> 8)
		158	#endif
		159	#ifndef minor
		160	# define minor(dev) ((dev) & 0xff)
		161	#endif
		162
		163	#if PAGESIZE <= 0
		164	# define PAGESIZE sysconf (_SC_PAGESIZE)
		165	#endif
		166
		167	/*****************************************************************************/
		168
		169	static void
		170	fiemap (eio_req *req)
		171	{
		172	req->result = -1;
		173
		174	#if HAVE_FIEMAP
		175	/* assume some c99 */
		176	struct fiemap *fiemap = 0;
		177	size_t end_offset;
		178	int count = req->int3;
		179
		180	req->flags |= EIO_FLAG_PTR1_FREE;
		181
		182	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		183	/* increase in 3.5kb steps */
		184	if (count < 0)
		185	count = 8;
		186
		187	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		188	errno = ENOMEM;
		189	if (!fiemap)
		190	return;
		191
		192	req->ptr1 = fiemap;
		193
		194	fiemap->fm_start = req->offs;
		195	fiemap->fm_length = req->size;
		196	fiemap->fm_flags = req->int2;
		197	fiemap->fm_extent_count = count;
		198
		199	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		200	return;
		201
		202	if (req->int3 >= 0 /* not autosizing */
		203	|| !fiemap->fm_mapped_extents /* no more extents */
		204	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		205	goto done;
		206
		207	/* else we have to loop -
		208	* it would be tempting (actually I tried that first) to just query the
		209	* number of extents needed, but linux often feels like not returning all
		210	* extents, without telling us it left any out. this complicates
		211	* this quite a bit.
		212	*/
		213
		214	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		215
		216	for (;;)
		217	{
		218	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		219	char scratch[3072];
		220	struct fiemap *incmap = (struct fiemap *)scratch;
		221
		222	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		223	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		224	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		225	incmap->fm_flags = fiemap->fm_flags;
		226	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		227
		228	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		229	return;
		230
		231	if (!incmap->fm_mapped_extents)
		232	goto done;
		233
		234	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		235	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		236	errno = ENOMEM;
		237	if (!fiemap)
		238	return;
		239
		240	req->ptr1 = fiemap;
		241
		242	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		243	{
		244	struct fiemap_extent *e = incmap->fm_extents + count;
		245
		246	if (e->fe_logical + e->fe_length >= end_offset)
		247	goto done;
		248
		249	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		250
		251	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		252	goto done;
		253
		254	}
		255	}
		256
		257	done:
		258	req->result = 0;
		259
		260	#else
		261	errno = ENOSYS;
		262	#endif
		263	}
		264
		265	/*****************************************************************************/
96		266
97	enum {	267	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	268	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	269	};
100		270
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	271	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	272	typedef eio_req *aio_req_ornot;
		273	typedef eio_wd aio_wd;
105		274
106	static unsigned int max_outstanding = 0x7fffffff;	275	static SV *on_next_submit;
		276	static int next_pri = EIO_PRI_DEFAULT;
		277	static int max_outstanding;
107		278
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	279	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
111		280
112	static void req_destroy (aio_req req);	281	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	282	static void req_cancel (aio_req req);
114		283
115	static void want_poll (void)	284	static void
		285	want_poll (void)
116	{	286	{
117	/* write a dummy byte to the pipe so fh becomes ready */	287	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	288	s_epipe_signal (&respipe);
119	}	289	}
120		290
121	static void done_poll (void)	291	static void
		292	done_poll (void)
122	{	293	{
123	/* read any signals sent by the worker threads */	294	/* read any signals sent by the worker threads */
124	char buf [4];	295	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	296	}
128		297
129	/* must be called at most once */	298	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	299	static SV *
		300	req_sv (aio_req req, HV *stash)
131	{	301	{
132	if (!req->self)	302	if (!req->self)
133	{	303	{
134	req->self = (SV *)newHV ();	304	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	305	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	306	}
137		307
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	308	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	309	}
140		310
141	static aio_req SvAIO_REQ (SV *sv)	311	static SV *
		312	newSVaio_wd (aio_wd wd)
		313	{
		314	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		315	}
		316
		317	static aio_req
		318	SvAIO_REQ (SV *sv)
142	{	319	{
143	MAGIC *mg;	320	MAGIC *mg;
144		321
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	322	if (!SvROK (sv)
		323	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		324	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		325	&& SvSTASH (SvRV (sv)) != aio_req_stash
		326	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	327	croak ("object of class IO::AIO::REQ expected");
147		328
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	329	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		330
150	return mg ? (aio_req)mg->mg_ptr : 0;	331	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	332	}
152		333
		334	static aio_wd
		335	SvAIO_WD (SV *sv)
		336	{
		337	if (!SvROK (sv)
		338	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		339	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		340	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		341
		342	return (aio_wd)(long)SvIVX (SvRV (sv));
		343	}
		344
		345	static SV *
		346	newmortalFH (int fd, int flags)
		347	{
		348	if (fd < 0)
		349	return &PL_sv_undef;
		350
		351	GV *gv = (GV *)sv_newmortal ();
		352	char sym[64];
		353	int symlen;
		354
		355	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		356	gv_init (gv, aio_stash, sym, symlen, 0);
		357
		358	symlen = snprintf (
		359	sym,
		360	sizeof (sym),
		361	"%s&=%d",
		362	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		363	fd
		364	);
		365
		366	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		367	? (SV *)gv : &PL_sv_undef;
		368	}
		369
		370	static void
153	static void aio_grp_feed (aio_req grp)	371	aio_grp_feed (aio_req grp)
154	{	372	{
155	if (grp->sv2 && SvOK (grp->sv2))	373	if (grp->sv2 && SvOK (grp->sv2))
156	{	374	{
157	dSP;	375	dSP;
158		376
159	ENTER;	377	ENTER;
160	SAVETMPS;	378	SAVETMPS;
161	PUSHMARK (SP);	379	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	380	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	381	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	382	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	383	SPAGAIN;
166	FREETMPS;	384	FREETMPS;
167	LEAVE;	385	LEAVE;
168	}	386	}
169	}	387	}
170		388
		389	static void
		390	req_submit (eio_req *req)
		391	{
		392	eio_submit (req);
		393
		394	if (expect_false (on_next_submit))
		395	{
		396	dSP;
		397	SV *cb = sv_2mortal (on_next_submit);
		398
		399	on_next_submit = 0;
		400
		401	PUSHMARK (SP);
		402	PUTBACK;
		403	call_sv (cb, G_DISCARD | G_EVAL);
		404	}
		405	}
		406
		407	static int
171	static int req_invoke (eio_req *req)	408	req_invoke (eio_req *req)
172	{	409	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	410	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	411	SvREADONLY_off (req->sv2);
177		412
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	413	if (!EIO_CANCELLED (req) && req->callback)
179	{	414	{
		415	dSP;
		416	static SV *sv_result_cache; /* caches the result integer SV */
		417	SV *sv_result;
		418
180	ENTER;	419	ENTER;
181	SAVETMPS;	420	SAVETMPS;
182	PUSHMARK (SP);	421	PUSHMARK (SP);
183	EXTEND (SP, 1);	422	EXTEND (SP, 1);
184		423
		424	/* do not recreate the result IV from scratch each time */
		425	if (expect_true (sv_result_cache))
		426	{
		427	sv_result = sv_result_cache; sv_result_cache = 0;
		428	SvIV_set (sv_result, req->result);
		429	SvIOK_only (sv_result);
		430	}
		431	else
		432	{
		433	sv_result = newSViv (req->result);
		434	SvREADONLY_on (sv_result);
		435	}
		436
185	switch (req->type)	437	switch (req->type)
186	{	438	{
		439	case EIO_WD_OPEN:
		440	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		441	break;
		442
187	case EIO_READDIR:	443	case EIO_READDIR:
188	{	444	{
189	SV *rv = &PL_sv_undef;	445	SV *rv = &PL_sv_undef;
190		446
191	if (req->result >= 0)	447	if (req->result >= 0)
192	{	448	{
193	int i;	449	int i;
194	char *buf = req->ptr2;	450	char *names = (char *)req->ptr2;
		451	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
195	AV *av = newAV ();	452	AV *av = newAV ();
196		453
197	av_extend (av, req->result - 1);	454	av_extend (av, req->result - 1);
198		455
199	for (i = 0; i < req->result; ++i)	456	for (i = 0; i < req->result; ++i)
200	{	457	{
201	SV *sv = newSVpv (buf, 0);	458	if (req->int1 & EIO_READDIR_DENTS)
		459	{
		460	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		461
		462	if (req->int1 & EIO_READDIR_CUSTOM2)
		463	{
		464	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		465	AV *avent = newAV ();
		466
		467	av_extend (avent, 2);
		468
		469	if (!sv_type [ent->type])
		470	{
		471	sv_type [ent->type] = newSViv (ent->type);
		472	SvREADONLY_on (sv_type [ent->type]);
		473	}
		474
		475	av_store (avent, 0, namesv);
		476	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		477	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		478
		479	av_store (av, i, newRV_noinc ((SV *)avent));
		480	}
		481	else
203	av_store (av, i, sv);	482	av_store (av, i, namesv);
		483
		484	++ent;
		485	}
		486	else
		487	{
		488	SV *name = newSVpv (names, 0);
		489	av_store (av, i, name);
204	buf += SvCUR (sv) + 1;	490	names += SvCUR (name) + 1;
		491	}
205	}	492	}
206		493
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	494	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	495	}
209		496
210	PUSHs (rv);	497	PUSHs (rv);
		498
		499	if (req->int1 & EIO_READDIR_CUSTOM1)
		500	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
211	}	501	}
212	break;	502	break;
213		503
214	case EIO_OPEN:	504	case EIO_OPEN:
		505	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		506	break;
		507
		508	case EIO_STATVFS:
		509	case EIO_FSTATVFS:
215	{	510	{
216	/* convert fd to fh */
217	SV *fh = &PL_sv_undef;	511	SV *rv = &PL_sv_undef;
218		512
		513	#ifndef _WIN32
219	if (req->result >= 0)	514	if (req->result >= 0)
220	{	515	{
		516	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
221	GV *gv = (GV *)sv_newmortal ();	517	HV *hv = newHV ();
222	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
223	char sym [64];	519	* chooses to make it a struct.
224	int symlen;
225		520	*/
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	521	unsigned long fsid = 0;
227	gv_init (gv, stash, sym, symlen, 0);	522	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
228		523
229	symlen = snprintf (	524	rv = sv_2mortal (newRV_noinc ((SV *)hv));
230	sym,
231	sizeof (sym),
232	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result
235	);
236		525
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	526	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
238	fh = (SV *)gv;	527	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		528	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		529	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		530	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		531	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		532	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		533	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		534	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		535	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		536	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
239	}	537	}
		538	#endif
240		539
241	PUSHs (fh);	540	PUSHs (rv);
242	}	541	}
		542
243	break;	543	break;
244		544
245	case EIO_GROUP:	545	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	546	req->int1 = 2; /* mark group as finished */
247		547
…		…
259	case EIO_NOP:	559	case EIO_NOP:
260	case EIO_BUSY:	560	case EIO_BUSY:
261	break;	561	break;
262		562
263	case EIO_READLINK:	563	case EIO_READLINK:
		564	case EIO_REALPATH:
264	if (req->result > 0)	565	if (req->result > 0)
265	{	566	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
266	SvCUR_set (req->sv2, req->result);
267	*SvEND (req->sv2) = 0;
268	PUSHs (req->sv2);
269	}
270	break;	567	break;
271		568
272	case EIO_STAT:	569	case EIO_STAT:
273	case EIO_LSTAT:	570	case EIO_LSTAT:
274	case EIO_FSTAT:	571	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	572	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		573
276	PL_laststatval = req->result;	574	if (!(PL_laststatval = req->result))
		575	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
277	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	576	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	577
		578	PUSHs (sv_result);
279	break;	579	break;
280		580
		581	case EIO_SEEK:
		582	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		583	break;
		584
281	case EIO_READ:	585	case EIO_READ:
		586	{
282	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	587	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
283	*SvEND (req->sv2) = 0;	588	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	589	SvPOK_only (req->sv2);
		590	SvSETMAGIC (req->sv2);
		591	PUSHs (sv_result);
		592	}
285	break;	593	break;
286		594
287	case EIO_DUP2:	595	case EIO_CUSTOM:
		596	if (req->feed == fiemap)
		597	{
		598	#if HAVE_FIEMAP
		599	if (!req->result)
		600	{
		601	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		602
		603	if (fiemap->fm_extent_count)
		604	{
		605	AV *av = newAV ();
		606	int i;
		607
		608	while (fiemap->fm_mapped_extents)
		609	{
		610	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		611	AV *ext_av = newAV ();
		612
		613	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		614	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		615	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		616	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		617
		618	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		619	}
		620
		621	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		622	}
		623	else
		624	{
		625	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		626	PUSHs (sv_result);
		627	}
		628	}
		629	#endif
		630	}
		631	else
		632	PUSHs (sv_result);
		633	break;
		634
		635	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
288	if (req->result > 0)	636	if (req->result > 0)
289	req->result = 0;	637	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	638	/* FALLTHROUGH */
291		639
292	default:	640	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	641	PUSHs (sv_result);
294	break;	642	break;
295	}	643	}
296		644
297	errno = req->errorno;	645	errno = req->errorno;
298		646
299	PUTBACK;	647	PUTBACK;
300	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	648	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301	SPAGAIN;	649	SPAGAIN;
302		650
		651	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		652	SvREFCNT_dec (sv_result);
		653	else
		654	sv_result_cache = sv_result;
		655
303	FREETMPS;	656	FREETMPS;
304	LEAVE;	657	LEAVE;
305		658
306	PUTBACK;	659	PUTBACK;
307	}	660	}
308		661
309	return !!SvTRUE (ERRSV);	662	return !!SvTRUE (ERRSV);
310	}	663	}
311		664
		665	static void
312	static void req_destroy (aio_req req)	666	req_destroy (aio_req req)
313	{	667	{
314	if (req->self)	668	if (req->self)
315	{	669	{
316	sv_unmagic (req->self, PERL_MAGIC_ext);	670	sv_unmagic (req->self, PERL_MAGIC_ext);
317	SvREFCNT_dec (req->self);	671	SvREFCNT_dec (req->self);
318	}	672	}
319		673
320	SvREFCNT_dec (req->sv1);	674	SvREFCNT_dec (req->sv1);
321	SvREFCNT_dec (req->sv2);	675	SvREFCNT_dec (req->sv2);
		676	SvREFCNT_dec (req->sv3);
		677	SvREFCNT_dec (req->sv4);
322	SvREFCNT_dec (req->callback);	678	SvREFCNT_dec (req->callback);
323		679
324	Safefree (req);	680	free (req);
325	}	681	}
326		682
		683	static void
327	static void req_cancel_subs (aio_req grp)	684	req_cancel_subs (aio_req grp)
328	{	685	{
329	aio_req sub;
330
331	if (grp->type != EIO_GROUP)	686	if (grp->type != EIO_GROUP)
332	return;	687	return;
333		688
334	SvREFCNT_dec (grp->sv2);	689	SvREFCNT_dec (grp->sv2);
335	grp->sv2 = 0;	690	grp->sv2 = 0;
336		691
337	eio_grp_cancel (grp);	692	eio_grp_cancel (grp);
338	}	693	}
339		694
340	#ifdef USE_SOCKETS_AS_HANDLES	695	static void ecb_cold
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))	696	create_respipe (void)
342	#else	697	{
343	# define TO_SOCKET(x) (x)	698	if (s_epipe_renew (&respipe))
344	#endif	699	croak ("IO::AIO: unable to initialize result pipe");
		700	}
345		701
346	static void	702	static void
347	create_respipe (void)	703	poll_wait (void)
348	{	704	{
349	int old_readfd = respipe [0];
350
351	if (respipe [1] >= 0)
352	respipe_close (TO_SOCKET (respipe [1]));
353
354	#ifdef _WIN32
355	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
356	#else
357	if (pipe (respipe))
358	#endif
359	croak ("unable to initialize result pipe");
360
361	if (old_readfd >= 0)
362	{
363	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
364	croak ("unable to initialize result pipe(2)");
365
366	respipe_close (respipe [0]);
367	respipe [0] = old_readfd;
368	}
369
370	#ifdef _WIN32
371	int arg = 1;
372	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
373	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
374	#else
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
376	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
377	#endif
378	croak ("unable to initialize result pipe(3)");
379
380	respipe_osf [0] = TO_SOCKET (respipe [0]);
381	respipe_osf [1] = TO_SOCKET (respipe [1]);
382	}
383
384	static void poll_wait (void)
385	{
386	fd_set rfd;
387
388	while (eio_nreqs ())	705	while (eio_nreqs ())
389	{	706	{
390	int size;	707	int size;
391		708
392	X_LOCK (reslock);	709	X_LOCK (EIO_POOL->reslock);
393	size = res_queue.size;	710	size = EIO_POOL->res_queue.size;
394	X_UNLOCK (reslock);	711	X_UNLOCK (EIO_POOL->reslock);
395		712
396	if (size)	713	if (size)
397	return;	714	return;
398		715
399	maybe_start_thread ();	716	etp_maybe_start_thread (EIO_POOL);
400		717
401	FD_ZERO (&rfd);	718	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	719	}
406	}	720	}
407		721
408	static int poll_cb (void)	722	static int
		723	poll_cb (void)
409	{	724	{
		725	for (;;)
		726	{
410	int res = eio_poll ();	727	int res = eio_poll ();
411		728
412	if (res > 0)	729	if (res > 0)
413	croak (0);	730	croak (0);
414		731
		732	if (!max_outstanding || max_outstanding > eio_nreqs ())
		733	return res;
		734
		735	poll_wait ();
		736	}
		737	}
		738
		739	static void ecb_cold
		740	reinit (void)
		741	{
		742	create_respipe ();
		743
		744	if (eio_init (want_poll, done_poll) < 0)
		745	croak ("IO::AIO: unable to initialise eio library");
		746	}
		747
		748	/*****************************************************************************/
		749
		750	#if !_POSIX_MAPPED_FILES
		751	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		752	# define munmap(addr,length) EIO_ENOSYS ()
		753	#endif
		754
		755	#if !_POSIX_MEMORY_PROTECTION
		756	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		757	#endif
		758
		759	#define MMAP_MAGIC PERL_MAGIC_ext
		760
		761	static int ecb_cold
		762	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		763	{
		764	int old_errno = errno;
		765	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		766	errno = old_errno;
		767
		768	mg->mg_obj = 0; /* just in case */
		769
		770	SvREADONLY_off (sv);
		771
		772	if (SvPVX (sv) != mg->mg_ptr)
		773	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		774
		775	SvCUR_set (sv, 0);
		776	SvPVX (sv) = 0;
		777	SvOK_off (sv);
		778
		779	return 0;
		780	}
		781
		782	static MGVTBL mmap_vtbl = {
		783	0, 0, 0, 0, mmap_free
		784	};
		785
		786	/*****************************************************************************/
		787
		788	static SV *
		789	get_cb (SV *cb_sv)
		790	{
		791	SvGETMAGIC (cb_sv);
		792	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		793	}
		794
		795	static aio_req ecb_noinline
		796	dreq (SV *callback)
		797	{
		798	SV *cb_cv;
		799	aio_req req;
		800	int req_pri = next_pri;
		801	next_pri = EIO_PRI_DEFAULT;
		802
		803	cb_cv = get_cb (callback);
		804
		805	req = calloc (sizeof (*req), 1);
		806	if (!req)
		807	croak ("out of memory during eio_req allocation");
		808
		809	req->callback = SvREFCNT_inc (cb_cv);
		810	req->pri = req_pri;
		811
415	return res;	812	return req;
416	}	813	}
417		814
418	#define dREQ \	815	#define dREQ \
419	aio_req req; \	816	aio_req req = dreq (callback); \
420	int req_pri = next_pri; \
421	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
422	\
423	if (SvOK (callback) && !SvROK (callback)) \
424	croak ("callback must be undef or of reference type"); \
425	\
426	Newz (0, req, 1, eio_req); \
427	if (!req) \
428	croak ("out of memory during eio_req allocation"); \
429	\
430	req->callback = newSVsv (callback); \
431	req->pri = req_pri
432		817
433	#define REQ_SEND \	818	#define REQ_SEND \
		819	PUTBACK; \
434	eio_submit (req); \	820	req_submit (req); \
		821	SPAGAIN; \
435	\	822	\
436	if (GIMME_V != G_VOID) \	823	if (GIMME_V != G_VOID) \
437	XPUSHs (req_sv (req, AIO_REQ_KLASS));	824	XPUSHs (req_sv (req, aio_req_stash));
438		825
		826	ecb_inline void
		827	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		828	{
		829	if (expect_false (SvROK (path)))
		830	{
		831	SV *rv = SvRV (path);
		832	SV *wdob;
		833
		834	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		835	{
		836	path = AvARRAY (rv)[1];
		837	wdob = AvARRAY (rv)[0];
		838
		839	if (SvOK (wdob))
		840	{
		841	*wd = SvAIO_WD (wdob);
		842	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		843	}
		844	else
		845	*wd = EIO_INVALID_WD;
		846	}
		847	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		848	{
		849	*wd = (aio_wd)(long)SvIVX (rv);
		850	*wdsv = SvREFCNT_inc_NN (rv);
		851	*ptr = ".";
		852	return; /* path set to "." */
		853	}
		854	else
		855	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		856	}
		857
		858	*pathsv = newSVsv (path);
		859	*ptr = SvPVbyte_nolen (*pathsv);
		860	}
		861
		862	static void ecb_noinline
		863	req_set_path1 (aio_req req, SV *path)
		864	{
		865	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		866	}
		867
		868	static void ecb_noinline
		869	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		870	{
		871	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		872
		873	switch (SvTYPE (rv))
		874	{
		875	case SVt_PVIO:
		876	case SVt_PVLV:
		877	case SVt_PVGV:
		878	req->type = type_fh;
		879	req->sv1 = newSVsv (fh_or_path);
		880	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		881	break;
		882
		883	default:
		884	req->type = type_path;
		885	req_set_path1 (req, fh_or_path);
		886	break;
		887	}
		888	}
		889
		890	XS(boot_IO__AIO) ecb_cold;
		891
439	MODULE = IO::AIO PACKAGE = IO::AIO	892	MODULE = IO::AIO PACKAGE = IO::AIO
440		893
441	PROTOTYPES: ENABLE	894	PROTOTYPES: ENABLE
442		895
443	BOOT:	896	BOOT:
444	{	897	{
		898	static const struct {
		899	const char *name;
		900	IV iv;
		901	} *civ, const_iv[] = {
		902	# define const_niv(name, value) { # name, (IV) value },
		903	# define const_iv(name) { # name, (IV) name },
		904	# define const_eio(name) { # name, (IV) EIO_ ## name },
		905
		906	/* you have to re-run ./gendef0 after adding/removing any constants here */
		907	/* the first block can be undef if missing */
		908	const_iv (ENOSYS)
		909	const_iv (EXDEV)
		910	const_iv (EBADR)
		911
		912	/* for lseek */
		913	const_iv (SEEK_DATA)
		914	const_iv (SEEK_HOLE)
		915
		916	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		917	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		918	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		919	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		920	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		921	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		922
		923	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		924	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		925	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		926	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		927	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		928	const_niv (MADV_FREE , POSIX_MADV_FREE)
		929
		930	/* the second block will be 0 when missing */
		931	const_iv (O_RDONLY)
		932	const_iv (O_WRONLY)
		933	const_iv (O_RDWR)
		934	const_iv (O_CREAT)
		935	const_iv (O_TRUNC)
		936	const_iv (O_EXCL)
		937	const_iv (O_APPEND)
		938
		939	const_iv (O_ASYNC)
		940	const_iv (O_DIRECT)
		941	const_iv (O_NOATIME)
		942
		943	const_iv (O_CLOEXEC)
		944	const_iv (O_NOCTTY)
		945	const_iv (O_NOFOLLOW)
		946	const_iv (O_NONBLOCK)
		947	const_iv (O_EXEC)
		948	const_iv (O_SEARCH)
		949	const_iv (O_DIRECTORY)
		950	const_iv (O_DSYNC)
		951	const_iv (O_RSYNC)
		952	const_iv (O_SYNC)
		953	const_iv (O_PATH)
		954	const_iv (O_TMPFILE)
		955	const_iv (O_TTY_INIT)
		956
		957	const_iv (S_IFIFO)
		958	const_iv (S_IFCHR)
		959	const_iv (S_IFBLK)
		960	const_iv (S_IFLNK)
		961	const_iv (S_IFREG)
		962	const_iv (S_IFDIR)
		963	const_iv (S_IFWHT)
		964	const_iv (S_IFSOCK)
		965	const_iv (S_IFMT)
		966
		967	const_iv (ST_RDONLY)
		968	const_iv (ST_NOSUID)
		969	const_iv (ST_NODEV)
		970	const_iv (ST_NOEXEC)
		971	const_iv (ST_SYNCHRONOUS)
		972	const_iv (ST_MANDLOCK)
		973	const_iv (ST_WRITE)
		974	const_iv (ST_APPEND)
		975	const_iv (ST_IMMUTABLE)
		976	const_iv (ST_NOATIME)
		977	const_iv (ST_NODIRATIME)
		978	const_iv (ST_RELATIME)
		979
		980	const_iv (PROT_NONE)
		981	const_iv (PROT_EXEC)
		982	const_iv (PROT_READ)
		983	const_iv (PROT_WRITE)
		984
		985	const_iv (MAP_PRIVATE)
		986	const_iv (MAP_SHARED)
		987	const_iv (MAP_FIXED)
		988	const_iv (MAP_ANONYMOUS)
		989
		990	/* linuxish */
		991	const_iv (MAP_LOCKED)
		992	const_iv (MAP_NORESERVE)
		993	const_iv (MAP_POPULATE)
		994	const_iv (MAP_NONBLOCK)
		995	const_iv (MAP_GROWSDOWN)
		996	const_iv (MAP_32BIT)
		997	const_iv (MAP_HUGETLB)
		998	const_iv (MAP_STACK)
		999
		1000	const_iv (FIEMAP_FLAG_SYNC)
		1001	const_iv (FIEMAP_FLAG_XATTR)
		1002	const_iv (FIEMAP_FLAGS_COMPAT)
		1003	const_iv (FIEMAP_EXTENT_LAST)
		1004	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1005	const_iv (FIEMAP_EXTENT_DELALLOC)
		1006	const_iv (FIEMAP_EXTENT_ENCODED)
		1007	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1008	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1009	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1010	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1011	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1012	const_iv (FIEMAP_EXTENT_MERGED)
		1013	const_iv (FIEMAP_EXTENT_SHARED)
		1014
		1015	const_iv (SPLICE_F_MOVE)
		1016	const_iv (SPLICE_F_NONBLOCK)
		1017	const_iv (SPLICE_F_MORE)
		1018	const_iv (SPLICE_F_GIFT)
		1019
		1020	/* these are libeio constants, and are independent of gendef0 */
		1021	const_eio (SEEK_SET)
		1022	const_eio (SEEK_CUR)
		1023	const_eio (SEEK_END)
		1024
		1025	const_eio (MCL_FUTURE)
		1026	const_eio (MCL_CURRENT)
		1027
		1028	const_eio (MS_ASYNC)
		1029	const_eio (MS_INVALIDATE)
		1030	const_eio (MS_SYNC)
		1031
		1032	const_eio (MT_MODIFY)
		1033
		1034	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1035	const_eio (SYNC_FILE_RANGE_WRITE)
		1036	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1037
		1038	const_eio (FALLOC_FL_KEEP_SIZE)
		1039	const_eio (FALLOC_FL_PUNCH_HOLE)
		1040	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1041	const_eio (FALLOC_FL_ZERO_RANGE)
		1042
		1043	const_eio (READDIR_DENTS)
		1044	const_eio (READDIR_DIRS_FIRST)
		1045	const_eio (READDIR_STAT_ORDER)
		1046	const_eio (READDIR_FOUND_UNKNOWN)
		1047
		1048	const_eio (DT_UNKNOWN)
		1049	const_eio (DT_FIFO)
		1050	const_eio (DT_CHR)
		1051	const_eio (DT_DIR)
		1052	const_eio (DT_BLK)
		1053	const_eio (DT_REG)
		1054	const_eio (DT_LNK)
		1055	const_eio (DT_SOCK)
		1056	const_eio (DT_WHT)
		1057	};
		1058
445	stash = gv_stashpv ("IO::AIO", 1);	1059	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1060	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1061	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1062	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
446		1063
447	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1064	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
448	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1065	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
449	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
450	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
451	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
452	#ifdef _WIN32
453	X_MUTEX_CHECK (wrklock);
454	X_MUTEX_CHECK (reslock);
455	X_MUTEX_CHECK (reqlock);
456	X_MUTEX_CHECK (reqwait);
457	X_MUTEX_CHECK (preadwritelock);
458	X_MUTEX_CHECK (readdirlock);
459		1066
460	X_COND_CHECK (reqwait);	1067	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
461	#else
462	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
463	#endif
464		1068
465	create_respipe ();	1069	reinit ();
466
467	if (eio_init (want_poll, done_poll) < 0)
468	croak ("IO::AIO: unable to initialise eio library");
469	}	1070	}
470		1071
471	void	1072	void
		1073	reinit ()
		1074	PROTOTYPE:
		1075
		1076	void
472	max_poll_reqs (int nreqs)	1077	max_poll_reqs (unsigned int nreqs)
473	PROTOTYPE: $	1078	PROTOTYPE: $
474	CODE:	1079	CODE:
475	eio_set_max_poll_reqs (nreqs);	1080	eio_set_max_poll_reqs (nreqs);
476		1081
477	void	1082	void
…		…
479	PROTOTYPE: $	1084	PROTOTYPE: $
480	CODE:	1085	CODE:
481	eio_set_max_poll_time (nseconds);	1086	eio_set_max_poll_time (nseconds);
482		1087
483	void	1088	void
484	min_parallel (int nthreads)	1089	min_parallel (unsigned int nthreads)
485	PROTOTYPE: $	1090	PROTOTYPE: $
486	CODE:	1091	CODE:
487	eio_set_min_parallel (nthreads);	1092	eio_set_min_parallel (nthreads);
488		1093
489	void	1094	void
490	max_parallel (int nthreads)	1095	max_parallel (unsigned int nthreads)
491	PROTOTYPE: $	1096	PROTOTYPE: $
492	CODE:	1097	CODE:
493	eio_set_max_parallel (nthreads);	1098	eio_set_max_parallel (nthreads);
494		1099
495	void	1100	void
496	max_idle (int nthreads)	1101	max_idle (unsigned int nthreads)
497	PROTOTYPE: $	1102	PROTOTYPE: $
498	CODE:	1103	CODE:
499	eio_set_max_idle (nthreads);	1104	eio_set_max_idle (nthreads);
500		1105
501	void	1106	void
		1107	idle_timeout (unsigned int seconds)
		1108	PROTOTYPE: $
		1109	CODE:
		1110	eio_set_idle_timeout (seconds);
		1111
		1112	void
502	max_outstanding (int maxreqs)	1113	max_outstanding (unsigned int maxreqs)
503	PROTOTYPE: $	1114	PROTOTYPE: $
504	CODE:	1115	CODE:
505	max_outstanding = maxreqs;	1116	max_outstanding = maxreqs;
506		1117
507	void	1118	void
508	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1119	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
509	PROTOTYPE: $$$;$
510	PPCODE:	1120	PPCODE:
511	{	1121	{
512	dREQ;	1122	dREQ;
513		1123
		1124	req->type = EIO_WD_OPEN;
		1125	req_set_path1 (req, pathname);
		1126
		1127	REQ_SEND;
		1128	}
		1129
		1130	void
		1131	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1132	PPCODE:
		1133	{
		1134	dREQ;
		1135
514	req->type = EIO_OPEN;	1136	req->type = EIO_OPEN;
515	req->sv1 = newSVsv (pathname);	1137	req_set_path1 (req, pathname);
516	req->ptr1 = SvPVbyte_nolen (req->sv1);
517	req->int1 = flags;	1138	req->int1 = flags;
518	req->int2 = mode;	1139	req->int2 = mode;
519		1140
520	REQ_SEND;	1141	REQ_SEND;
521	}	1142	}
522		1143
523	void	1144	void
524	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1145	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
525	PROTOTYPE: $;$
526	ALIAS:	1146	ALIAS:
527	aio_fsync = EIO_FSYNC	1147	aio_fsync = EIO_FSYNC
528	aio_fdatasync = EIO_FDATASYNC	1148	aio_fdatasync = EIO_FDATASYNC
		1149	aio_syncfs = EIO_SYNCFS
529	PPCODE:	1150	PPCODE:
530	{	1151	{
		1152	int fd = s_fileno_croak (fh, 0);
531	dREQ;	1153	dREQ;
532		1154
533	req->type = ix;	1155	req->type = ix;
534	req->sv1 = newSVsv (fh);	1156	req->sv1 = newSVsv (fh);
535	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1157	req->int1 = fd;
536		1158
537	REQ_SEND (req);	1159	REQ_SEND;
538	}	1160	}
539		1161
540	void	1162	void
541	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1163	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
542	PROTOTYPE: $;$
543	PPCODE:	1164	PPCODE:
544	{	1165	{
545	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1166	int fd = s_fileno_croak (fh, 0);
546	dREQ;	1167	dREQ;
547		1168
548	if (close_pipe < 0)	1169	req->type = EIO_SYNC_FILE_RANGE;
		1170	req->sv1 = newSVsv (fh);
		1171	req->int1 = fd;
		1172	req->offs = offset;
		1173	req->size = nbytes;
		1174	req->int2 = flags;
		1175
		1176	REQ_SEND;
		1177	}
		1178
		1179	void
		1180	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1181	PPCODE:
		1182	{
		1183	int fd = s_fileno_croak (fh, 0);
		1184	dREQ;
		1185
		1186	req->type = EIO_FALLOCATE;
		1187	req->sv1 = newSVsv (fh);
		1188	req->int1 = fd;
		1189	req->int2 = mode;
		1190	req->offs = offset;
		1191	req->size = len;
		1192
		1193	REQ_SEND;
		1194	}
		1195
		1196	void
		1197	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1198	PPCODE:
		1199	{
		1200	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1201	int fd = s_fileno_croak (fh, 0);
		1202	dREQ;
		1203
		1204	if (expect_false (close_fd < 0))
549	{	1205	{
550	int pipefd [2];	1206	int pipefd [2];
551		1207
		1208	if (
		1209	#ifdef _WIN32
		1210	_pipe (pipefd, 1, _O_BINARY) < 0
		1211	#else
552	if (pipe (pipefd) < 0	1212	pipe (pipefd) < 0
553	|| close (pipefd [1]) < 0
554	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1213	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1214	#endif
		1215	|| close (pipefd [1]) < 0
		1216	)
555	abort (); /*D*/	1217	abort (); /*D*/
556		1218
557	close_pipe = pipefd [0];	1219	close_fd = pipefd [0];
558	}	1220	}
559		1221
560	req->type = EIO_DUP2;	1222	req->type = EIO_DUP2;
561	req->int1 = close_pipe;	1223	req->int1 = close_fd;
562	req->sv2 = newSVsv (fh);	1224	req->sv2 = newSVsv (fh);
563	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1225	req->int2 = fd;
564		1226
565	REQ_SEND (req);	1227	REQ_SEND;
566	}	1228	}
567		1229
568	void	1230	void
		1231	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1232	PPCODE:
		1233	{
		1234	int fd = s_fileno_croak (fh, 0);
		1235	dREQ;
		1236
		1237	req->type = EIO_SEEK;
		1238	req->sv1 = newSVsv (fh);
		1239	req->int1 = fd;
		1240	req->offs = SvVAL64 (offset);
		1241	req->int2 = whence;
		1242
		1243	REQ_SEND;
		1244	}
		1245
		1246	void
569	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1247	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
570	ALIAS:	1248	ALIAS:
571	aio_read = EIO_READ	1249	aio_read = EIO_READ
572	aio_write = EIO_WRITE	1250	aio_write = EIO_WRITE
573	PROTOTYPE: $$$$$;$
574	PPCODE:	1251	PPCODE:
575	{	1252	{
576	STRLEN svlen;	1253	STRLEN svlen;
		1254	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
577	char *svptr = SvPVbyte (data, svlen);	1255	char *svptr = SvPVbyte (data, svlen);
578	UV len = SvUV (length);	1256	UV len = SvUV (length);
579
580	SvUPGRADE (data, SVt_PV);
581	SvPOK_on (data);
582		1257
583	if (dataoffset < 0)	1258	if (dataoffset < 0)
584	dataoffset += svlen;	1259	dataoffset += svlen;
585		1260
586	if (dataoffset < 0 || dataoffset > svlen)	1261	if (dataoffset < 0 || dataoffset > svlen)
…		…
592	if (!SvOK (length) || len + dataoffset > svlen)	1267	if (!SvOK (length) || len + dataoffset > svlen)
593	len = svlen - dataoffset;	1268	len = svlen - dataoffset;
594	}	1269	}
595	else	1270	else
596	{	1271	{
597	/* read: grow scalar as necessary */	1272	/* read: check type and grow scalar as necessary */
		1273	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
598	svptr = SvGROW (data, len + dataoffset + 1);	1274	svptr = sv_grow (data, len + dataoffset + 1);
		1275	else if (SvCUR (data) < len + dataoffset)
		1276	croak ("length + dataoffset outside of scalar, and cannot grow");
599	}	1277	}
600
601	if (len < 0)
602	croak ("length must not be negative");
603		1278
604	{	1279	{
605	dREQ;	1280	dREQ;
606		1281
607	req->type = ix;	1282	req->type = ix;
608	req->sv1 = newSVsv (fh);	1283	req->sv1 = newSVsv (fh);
609	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1284	req->int1 = fd;
610	: IoOFP (sv_2io (fh)));
611	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1285	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
612	req->size = len;	1286	req->size = len;
613	req->sv2 = SvREFCNT_inc (data);	1287	req->sv2 = SvREFCNT_inc (data);
614	req->ptr2 = (char *)svptr + dataoffset;	1288	req->ptr2 = (char *)svptr + dataoffset;
615	req->stroffset = dataoffset;	1289	req->stroffset = dataoffset;
…		…
623	REQ_SEND;	1297	REQ_SEND;
624	}	1298	}
625	}	1299	}
626		1300
627	void	1301	void
628	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1302	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
629	PROTOTYPE: $$;$	1303	ALIAS:
		1304	aio_ioctl = EIO_IOCTL
		1305	aio_fcntl = EIO_FCNTL
630	PPCODE:	1306	PPCODE:
631	{	1307	{
632	SV *data;	1308	int fd = s_fileno_croak (fh, 0);
		1309	char *svptr;
		1310
		1311	if (SvPOK (arg) || !SvNIOK (arg))
		1312	{
		1313	STRLEN svlen;
		1314	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1315	#ifdef IOCPARM_LEN
		1316	STRLEN need = IOCPARM_LEN (request);
		1317	#else
		1318	STRLEN need = 256;
		1319	#endif
		1320
		1321	if (svlen < need)
		1322	svptr = SvGROW (arg, need);
		1323	}
		1324	else
		1325	svptr = (char *)SvIV (arg);
		1326
		1327	{
		1328	dREQ;
		1329
		1330	req->type = ix;
		1331	req->sv1 = newSVsv (fh);
		1332	req->int1 = fd;
		1333	req->int2 = (long)request;
		1334	req->sv2 = SvREFCNT_inc (arg);
		1335	req->ptr2 = svptr;
		1336
		1337	REQ_SEND;
		1338	}
		1339	}
		1340
		1341	void
		1342	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1343	ALIAS:
		1344	aio_readlink = EIO_READLINK
		1345	aio_realpath = EIO_REALPATH
		1346	PPCODE:
		1347	{
633	dREQ;	1348	dREQ;
634		1349
635	data = newSV (NAME_MAX);
636	SvPOK_on (data);
637
638	req->type = EIO_READLINK;	1350	req->type = ix;
639	req->sv1 = newSVsv (path);	1351	req_set_path1 (req, pathname);
640	req->ptr1 = SvPVbyte_nolen (req->sv1);
641	req->sv2 = data;
642	req->ptr2 = SvPVbyte_nolen (data);
643		1352
644	REQ_SEND;	1353	REQ_SEND;
645	}	1354	}
646		1355
647	void	1356	void
648	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1357	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
649	PROTOTYPE: $$$$;$
650	PPCODE:	1358	PPCODE:
651	{	1359	{
		1360	int ifd = s_fileno_croak (in_fh , 0);
		1361	int ofd = s_fileno_croak (out_fh, 1);
652	dREQ;	1362	dREQ;
653		1363
654	req->type = EIO_SENDFILE;	1364	req->type = EIO_SENDFILE;
655	req->sv1 = newSVsv (out_fh);	1365	req->sv1 = newSVsv (out_fh);
656	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1366	req->int1 = ofd;
657	req->sv2 = newSVsv (in_fh);	1367	req->sv2 = newSVsv (in_fh);
658	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1368	req->int2 = ifd;
659	req->offs = SvVAL64 (in_offset);	1369	req->offs = in_offset;
660	req->size = length;	1370	req->size = length;
661		1371
662	REQ_SEND;	1372	REQ_SEND;
663	}	1373	}
664		1374
665	void	1375	void
666	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1376	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
667	PROTOTYPE: $$$;$
668	PPCODE:	1377	PPCODE:
669	{	1378	{
		1379	int fd = s_fileno_croak (fh, 0);
670	dREQ;	1380	dREQ;
671		1381
672	req->type = EIO_READAHEAD;	1382	req->type = EIO_READAHEAD;
673	req->sv1 = newSVsv (fh);	1383	req->sv1 = newSVsv (fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1384	req->int1 = fd;
675	req->offs = SvVAL64 (offset);	1385	req->offs = offset;
676	req->size = length;	1386	req->size = length;
677		1387
678	REQ_SEND;	1388	REQ_SEND;
679	}	1389	}
680		1390
681	void	1391	void
682	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1392	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
683	ALIAS:	1393	ALIAS:
684	aio_stat = EIO_STAT	1394	aio_stat = EIO_STAT
685	aio_lstat = EIO_LSTAT	1395	aio_lstat = EIO_LSTAT
		1396	aio_statvfs = EIO_STATVFS
686	PPCODE:	1397	PPCODE:
687	{	1398	{
688	dREQ;	1399	dREQ;
689		1400
690	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1401	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
691	if (!req->ptr2)
692	{
693	req_destroy (req);
694	croak ("out of memory during aio_stat statdata allocation");
695	}
696
697	req->flags |= EIO_FLAG_PTR2_FREE;
698	req->sv1 = newSVsv (fh_or_path);
699
700	if (SvPOK (fh_or_path))
701	{
702	req->type = ix;
703	req->ptr1 = SvPVbyte_nolen (req->sv1);
704	}
705	else
706	{
707	req->type = EIO_FSTAT;
708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
709	}
710		1402
711	REQ_SEND;	1403	REQ_SEND;
712	}	1404	}
713		1405
		1406	UV
		1407	major (UV dev)
		1408	ALIAS:
		1409	minor = 1
		1410	CODE:
		1411	RETVAL = ix ? minor (dev) : major (dev);
		1412	OUTPUT:
		1413	RETVAL
		1414
		1415	UV
		1416	makedev (UV maj, UV min)
		1417	CODE:
		1418	RETVAL = makedev (maj, min);
		1419	OUTPUT:
		1420	RETVAL
		1421
714	void	1422	void
715	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1423	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
716	PPCODE:	1424	PPCODE:
717	{	1425	{
718	dREQ;	1426	dREQ;
719		1427
720	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1428	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
721	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1429	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
722	req->sv1 = newSVsv (fh_or_path);	1430	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
723
724	if (SvPOK (fh_or_path))
725	{
726	req->type = EIO_UTIME;
727	req->ptr1 = SvPVbyte_nolen (req->sv1);
728	}
729	else
730	{
731	req->type = EIO_FUTIME;
732	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
733	}
734		1431
735	REQ_SEND;	1432	REQ_SEND;
736	}	1433	}
737		1434
738	void	1435	void
739	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1436	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
740	PPCODE:	1437	PPCODE:
741	{	1438	{
742	dREQ;	1439	dREQ;
743		1440
744	req->sv1 = newSVsv (fh_or_path);
745	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1441	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
746		1442	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
747	if (SvPOK (fh_or_path))
748	{
749	req->type = EIO_TRUNCATE;
750	req->ptr1 = SvPVbyte_nolen (req->sv1);
751	}
752	else
753	{
754	req->type = EIO_FTRUNCATE;
755	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
756	}
757		1443
758	REQ_SEND;	1444	REQ_SEND;
759	}	1445	}
760		1446
761	void	1447	void
762	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1448	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
763	ALIAS:
764	aio_chmod = EIO_CHMOD
765	aio_fchmod = EIO_FCHMOD
766	aio_mkdir = EIO_MKDIR
767	PPCODE:	1449	PPCODE:
768	{	1450	{
769	dREQ;	1451	dREQ;
770		1452
771	req->type = ix;
772	req->int2 = mode;	1453	req->int2 = mode;
773	req->sv1 = newSVsv (fh_or_path);	1454	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
774
775	if (ix == EIO_FCHMOD)
776	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
777	else
778	req->ptr1 = SvPVbyte_nolen (req->sv1);
779		1455
780	REQ_SEND;	1456	REQ_SEND;
781	}	1457	}
782		1458
783	void	1459	void
784	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1460	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
785	PPCODE:	1461	PPCODE:
786	{	1462	{
787	dREQ;	1463	dREQ;
788		1464
789	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1465	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
790	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1466	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
791	req->sv1 = newSVsv (fh_or_path);	1467	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
792
793	if (SvPOK (fh_or_path))
794	{
795	req->type = EIO_CHOWN;
796	req->ptr1 = SvPVbyte_nolen (req->sv1);
797	}
798	else
799	{
800	req->type = EIO_FCHOWN;
801	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
802	}
803		1468
804	REQ_SEND;	1469	REQ_SEND;
805	}	1470	}
806		1471
807	void	1472	void
		1473	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1474	PPCODE:
		1475	{
		1476	dREQ;
		1477
		1478	req->type = EIO_READDIR;
		1479	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1480
		1481	if (flags & EIO_READDIR_DENTS)
		1482	req->int1 |= EIO_READDIR_CUSTOM2;
		1483
		1484	req_set_path1 (req, pathname);
		1485
		1486	REQ_SEND;
		1487	}
		1488
		1489	void
		1490	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1491	PPCODE:
		1492	{
		1493	dREQ;
		1494
		1495	req->type = EIO_MKDIR;
		1496	req->int2 = mode;
		1497	req_set_path1 (req, pathname);
		1498
		1499	REQ_SEND;
		1500	}
		1501
		1502	void
808	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1503	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
809	ALIAS:	1504	ALIAS:
810	aio_unlink = EIO_UNLINK	1505	aio_unlink = EIO_UNLINK
811	aio_rmdir = EIO_RMDIR	1506	aio_rmdir = EIO_RMDIR
812	aio_readdir = EIO_READDIR	1507	aio_readdir = EIO_READDIR
813	PPCODE:	1508	PPCODE:
814	{	1509	{
815	dREQ;	1510	dREQ;
816		1511
817	req->type = ix;	1512	req->type = ix;
818	req->sv1 = newSVsv (pathname);	1513	req_set_path1 (req, pathname);
819	req->ptr1 = SvPVbyte_nolen (req->sv1);
820		1514
821	REQ_SEND;	1515	REQ_SEND;
822	}	1516	}
823		1517
824	void	1518	void
825	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1519	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
826	ALIAS:	1520	ALIAS:
827	aio_link = EIO_LINK	1521	aio_link = EIO_LINK
828	aio_symlink = EIO_SYMLINK	1522	aio_symlink = EIO_SYMLINK
829	aio_rename = EIO_RENAME	1523	aio_rename = EIO_RENAME
830	PPCODE:	1524	PPCODE:
831	{	1525	{
		1526	eio_wd wd2 = 0;
832	dREQ;	1527	dREQ;
833		1528
834	req->type = ix;	1529	req->type = ix;
835	req->sv1 = newSVsv (oldpath);	1530	req_set_path1 (req, oldpath);
836	req->ptr1 = SvPVbyte_nolen (req->sv1);	1531	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
837	req->sv2 = newSVsv (newpath);	1532	req->int3 = (long)wd2;
838	req->ptr2 = SvPVbyte_nolen (req->sv2);
839		1533
840	REQ_SEND;	1534	REQ_SEND;
841	}	1535	}
842		1536
843	void	1537	void
844	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1538	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
845	PPCODE:	1539	PPCODE:
846	{	1540	{
847	dREQ;	1541	dREQ;
848		1542
849	req->type = EIO_MKNOD;	1543	req->type = EIO_MKNOD;
850	req->sv1 = newSVsv (pathname);
851	req->ptr1 = SvPVbyte_nolen (req->sv1);
852	req->int2 = (mode_t)mode;	1544	req->int2 = (mode_t)mode;
853	req->offs = dev;	1545	req->offs = dev;
		1546	req_set_path1 (req, pathname);
854		1547
855	REQ_SEND;	1548	REQ_SEND;
856	}	1549	}
857		1550
858	void	1551	void
		1552	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
		1553	ALIAS:
		1554	aio_mtouch = EIO_MTOUCH
		1555	aio_msync = EIO_MSYNC
		1556	PPCODE:
		1557	{
		1558	STRLEN svlen;
		1559	char *svptr = SvPVbyte (data, svlen);
		1560	UV len = SvUV (length);
		1561
		1562	if (offset < 0)
		1563	offset += svlen;
		1564
		1565	if (offset < 0 || offset > svlen)
		1566	croak ("offset outside of scalar");
		1567
		1568	if (!SvOK (length) || len + offset > svlen)
		1569	len = svlen - offset;
		1570
		1571	{
		1572	dREQ;
		1573
		1574	req->type = ix;
		1575	req->sv2 = SvREFCNT_inc (data);
		1576	req->ptr2 = (char *)svptr + offset;
		1577	req->size = len;
		1578	req->int1 = flags;
		1579
		1580	REQ_SEND;
		1581	}
		1582	}
		1583
		1584	void
		1585	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1586	PPCODE:
		1587	{
		1588	STRLEN svlen;
		1589	char *svptr = SvPVbyte (data, svlen);
		1590	UV len = SvUV (length);
		1591
		1592	if (offset < 0)
		1593	offset += svlen;
		1594
		1595	if (offset < 0 || offset > svlen)
		1596	croak ("offset outside of scalar");
		1597
		1598	if (!SvOK (length) || len + offset > svlen)
		1599	len = svlen - offset;
		1600
		1601	{
		1602	dREQ;
		1603
		1604	req->type = EIO_MLOCK;
		1605	req->sv2 = SvREFCNT_inc (data);
		1606	req->ptr2 = (char *)svptr + offset;
		1607	req->size = len;
		1608
		1609	REQ_SEND;
		1610	}
		1611	}
		1612
		1613	void
		1614	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1615	PPCODE:
		1616	{
		1617	dREQ;
		1618
		1619	req->type = EIO_MLOCKALL;
		1620	req->int1 = flags;
		1621
		1622	REQ_SEND;
		1623	}
		1624
		1625	void
		1626	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1627	PPCODE:
		1628	{
		1629	int fd = s_fileno_croak (fh, 0);
		1630	dREQ;
		1631
		1632	req->type = EIO_CUSTOM;
		1633	req->sv1 = newSVsv (fh);
		1634	req->int1 = fd;
		1635
		1636	req->feed = fiemap;
		1637	#if HAVE_FIEMAP
		1638	/* keep our fingers crossed that the next two types are 64 bit */
		1639	req->offs = start;
		1640	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1641	req->int2 = flags;
		1642	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1643	#endif
		1644
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
859	aio_busy (double delay, SV *callback=&PL_sv_undef)	1649	aio_busy (double delay, SV *callback = &PL_sv_undef)
860	PPCODE:	1650	PPCODE:
861	{	1651	{
862	dREQ;	1652	dREQ;
863		1653
864	req->type = EIO_BUSY;	1654	req->type = EIO_BUSY;
…		…
866		1656
867	REQ_SEND;	1657	REQ_SEND;
868	}	1658	}
869		1659
870	void	1660	void
871	aio_group (SV *callback=&PL_sv_undef)	1661	aio_group (SV *callback = &PL_sv_undef)
872	PROTOTYPE: ;$
873	PPCODE:	1662	PPCODE:
874	{	1663	{
875	dREQ;	1664	dREQ;
876		1665
877	req->type = EIO_GROUP;	1666	req->type = EIO_GROUP;
878		1667
		1668	PUTBACK;
879	eio_submit (req);	1669	req_submit (req);
		1670	SPAGAIN;
		1671
880	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1672	XPUSHs (req_sv (req, aio_grp_stash));
881	}	1673	}
882		1674
883	void	1675	void
884	aio_nop (SV *callback=&PL_sv_undef)	1676	aio_nop (SV *callback = &PL_sv_undef)
885	ALIAS:	1677	ALIAS:
886	aio_nop = EIO_NOP	1678	aio_nop = EIO_NOP
887	aio_sync = EIO_SYNC	1679	aio_sync = EIO_SYNC
888	PPCODE:	1680	PPCODE:
889	{	1681	{
…		…
893		1685
894	REQ_SEND;	1686	REQ_SEND;
895	}	1687	}
896		1688
897	int	1689	int
898	aioreq_pri (int pri = 0)	1690	aioreq_pri (int pri = NO_INIT)
899	PROTOTYPE: ;$
900	CODE:	1691	CODE:
901	RETVAL = next_pri - EIO_PRI_BIAS;	1692	RETVAL = next_pri;
902	if (items > 0)	1693	if (items > 0)
903	{	1694	{
904	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1695	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
905	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1696	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
906	next_pri = pri + EIO_PRI_BIAS;	1697	next_pri = pri;
907	}	1698	}
908	OUTPUT:	1699	OUTPUT:
909	RETVAL	1700	RETVAL
910		1701
911	void	1702	void
912	aioreq_nice (int nice = 0)	1703	aioreq_nice (int nice = 0)
913	CODE:	1704	CODE:
914	nice = next_pri - nice;	1705	nice = next_pri - nice;
915	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1706	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
916	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1707	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
917	next_pri = nice + EIO_PRI_BIAS;	1708	next_pri = nice;
918		1709
919	void	1710	void
920	flush ()	1711	flush ()
921	PROTOTYPE:
922	CODE:	1712	CODE:
923	while (nreqs)	1713	while (eio_nreqs ())
924	{	1714	{
925	poll_wait ();	1715	poll_wait ();
926	poll_cb ();	1716	poll_cb ();
927	}	1717	}
928		1718
929	int	1719	int
930	poll()	1720	poll ()
931	PROTOTYPE:
932	CODE:	1721	CODE:
933	poll_wait ();	1722	poll_wait ();
934	RETVAL = poll_cb ();	1723	RETVAL = poll_cb ();
935	OUTPUT:	1724	OUTPUT:
936	RETVAL	1725	RETVAL
937		1726
938	int	1727	int
939	poll_fileno()	1728	poll_fileno ()
940	PROTOTYPE:
941	CODE:	1729	CODE:
942	RETVAL = respipe [0];	1730	RETVAL = s_epipe_fd (&respipe);
943	OUTPUT:	1731	OUTPUT:
944	RETVAL	1732	RETVAL
945		1733
946	int	1734	int
947	poll_cb(...)	1735	poll_cb (...)
948	PROTOTYPE:	1736	PROTOTYPE:
949	CODE:	1737	CODE:
950	RETVAL = poll_cb ();	1738	RETVAL = poll_cb ();
951	OUTPUT:	1739	OUTPUT:
952	RETVAL	1740	RETVAL
953		1741
954	void	1742	void
955	poll_wait()	1743	poll_wait ()
956	PROTOTYPE:
957	CODE:	1744	CODE:
958	poll_wait ();	1745	poll_wait ();
959		1746
960	int	1747	int
961	nreqs()	1748	nreqs ()
962	PROTOTYPE:
963	CODE:	1749	CODE:
964	RETVAL = eio_nreqs ();	1750	RETVAL = eio_nreqs ();
965	OUTPUT:	1751	OUTPUT:
966	RETVAL	1752	RETVAL
967		1753
968	int	1754	int
969	nready()	1755	nready ()
970	PROTOTYPE:
971	CODE:	1756	CODE:
972	RETVAL = eio_nready ();	1757	RETVAL = eio_nready ();
973	OUTPUT:	1758	OUTPUT:
974	RETVAL	1759	RETVAL
975		1760
976	int	1761	int
977	npending()	1762	npending ()
978	PROTOTYPE:
979	CODE:	1763	CODE:
980	RETVAL = eio_npending ();	1764	RETVAL = eio_npending ();
981	OUTPUT:	1765	OUTPUT:
982	RETVAL	1766	RETVAL
983		1767
984	int	1768	int
985	nthreads()	1769	nthreads ()
986	PROTOTYPE:
987	CODE:	1770	CODE:
988	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1771	RETVAL = eio_nthreads ();
989	RETVAL = started;
990	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
991	OUTPUT:	1772	OUTPUT:
992	RETVAL	1773	RETVAL
993		1774
		1775	int
		1776	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1777	CODE:
		1778	RETVAL = posix_fadvise (fh, offset, length, advice);
		1779	OUTPUT:
		1780	RETVAL
		1781
		1782	IV
		1783	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1784	CODE:
		1785	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1786	OUTPUT:
		1787	RETVAL
		1788
		1789	void
		1790	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1791	PPCODE:
		1792	sv_unmagic (scalar, MMAP_MAGIC);
		1793	{
		1794	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1795	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1796	if (addr == (void *)-1)
		1797	XSRETURN_NO;
		1798
		1799	sv_force_normal (scalar);
		1800
		1801	/* we store the length in mg_obj, as namlen is I32 :/ */
		1802	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1803	->mg_obj = (SV *)length;
		1804
		1805	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1806
		1807	if (!(prot & PROT_WRITE))
		1808	SvREADONLY_on (scalar);
		1809
		1810	if (SvLEN (scalar))
		1811	Safefree (SvPVX (scalar));
		1812
		1813	SvPVX (scalar) = (char *)addr;
		1814	SvCUR_set (scalar, length);
		1815	SvLEN_set (scalar, 0);
		1816	SvPOK_only (scalar);
		1817
		1818	XSRETURN_YES;
		1819	}
		1820
		1821	void
		1822	munmap (SV *scalar)
		1823	CODE:
		1824	sv_unmagic (scalar, MMAP_MAGIC);
		1825
		1826	int
		1827	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1828	ALIAS:
		1829	mprotect = 1
		1830	CODE:
		1831	{
		1832	STRLEN svlen;
		1833	void *addr = SvPVbyte (scalar, svlen);
		1834	STRLEN len = SvUV (length);
		1835
		1836	if (offset < 0)
		1837	offset += svlen;
		1838
		1839	if (offset < 0 || offset > svlen)
		1840	croak ("offset outside of scalar");
		1841
		1842	if (!SvOK (length) || len + offset > svlen)
		1843	len = svlen - offset;
		1844
		1845	addr = (void *)(((intptr_t)addr) + offset);
		1846	eio_page_align (&addr, &len);
		1847
		1848	switch (ix)
		1849	{
		1850	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1851	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1852	}
		1853	}
		1854	OUTPUT:
		1855	RETVAL
		1856
		1857	int
		1858	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1859	CODE:
		1860	{
		1861	STRLEN svlen;
		1862	void *addr = SvPVbyte (scalar, svlen);
		1863	size_t len = SvUV (length);
		1864
		1865	if (offset < 0)
		1866	offset += svlen;
		1867
		1868	if (offset < 0 || offset > svlen)
		1869	croak ("offset outside of scalar");
		1870
		1871	if (!SvOK (length) || len + offset > svlen)
		1872	len = svlen - offset;
		1873
		1874	addr = (void *)(((intptr_t)addr) + offset);
		1875	eio_page_align (&addr, &len);
		1876	#if _POSIX_MEMLOCK_RANGE
		1877	RETVAL = munlock (addr, len);
		1878	#else
		1879	RETVAL = EIO_ENOSYS ();
		1880	#endif
		1881	}
		1882	OUTPUT:
		1883	RETVAL
		1884
		1885	int
		1886	munlockall ()
		1887	CODE:
		1888	#if _POSIX_MEMLOCK
		1889	munlockall ();
		1890	#else
		1891	RETVAL = EIO_ENOSYS ();
		1892	#endif
		1893	OUTPUT:
		1894	RETVAL
		1895
		1896	int
		1897	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1898	CODE:
		1899	{
		1900	#if HAVE_LINUX_SPLICE
		1901	loff_t off_in_, off_out_;
		1902	RETVAL = splice (
		1903	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1904	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1905	length, flags
		1906	);
		1907	#else
		1908	RETVAL = EIO_ENOSYS ();
		1909	#endif
		1910	}
		1911	OUTPUT:
		1912	RETVAL
		1913
		1914	int
		1915	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1916	CODE:
		1917	#if HAVE_LINUX_SPLICE
		1918	RETVAL = tee (rfh, wfh, length, flags);
		1919	#else
		1920	RETVAL = EIO_ENOSYS ();
		1921	#endif
		1922	OUTPUT:
		1923	RETVAL
		1924
		1925	int
		1926	pipesize (aio_rfd rfh, int new_size = -1)
		1927	PROTOTYPE: $;$
		1928	CODE:
		1929	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1930	if (new_size >= 0)
		1931	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1932	else
		1933	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1934	#else
		1935	errno = ENOSYS;
		1936	RETVAL = -1;
		1937	#endif
		1938	OUTPUT:
		1939	RETVAL
		1940
		1941	void
		1942	pipe2 (int flags = 0)
		1943	PROTOTYPE: ;$
		1944	PPCODE:
		1945	{
		1946	int fd[2];
		1947	int res;
		1948
		1949	if (flags)
		1950	#if HAVE_PIPE2
		1951	res = pipe2 (fd, flags);
		1952	#else
		1953	res = (errno = ENOSYS, -1);
		1954	#endif
		1955	else
		1956	res = pipe (fd);
		1957
		1958	if (!res)
		1959	{
		1960	EXTEND (SP, 2);
		1961	PUSHs (newmortalFH (fd[0], O_RDONLY));
		1962	PUSHs (newmortalFH (fd[1], O_WRONLY));
		1963	}
		1964	}
		1965
		1966	void _on_next_submit (SV *cb)
		1967	CODE:
		1968	SvREFCNT_dec (on_next_submit);
		1969	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1970
994	PROTOTYPES: DISABLE	1971	PROTOTYPES: DISABLE
		1972
		1973	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1974
		1975	BOOT:
		1976	{
		1977	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1978	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1979	}
		1980
		1981	void
		1982	DESTROY (SV *self)
		1983	CODE:
		1984	{
		1985	aio_wd wd = SvAIO_WD (self);
		1986	#if HAVE_AT
		1987	{
		1988	SV *callback = &PL_sv_undef;
		1989	dREQ; /* clobbers next_pri :/ */
		1990	next_pri = req->pri; /* restore next_pri */
		1991	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1992	req->type = EIO_WD_CLOSE;
		1993	req->wd = wd;
		1994	REQ_SEND;
		1995	}
		1996	#else
		1997	eio_wd_close_sync (wd);
		1998	#endif
		1999	}
995		2000
996	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2001	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
997		2002
998	void	2003	void
999	cancel (aio_req_ornot req)	2004	cancel (aio_req_ornot req)
1000	CODE:	2005	CODE:
1001	eio_cancel (req);	2006	eio_cancel (req);
1002		2007
1003	void	2008	void
1004	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2009	cb (aio_req_ornot req, SV *callback = NO_INIT)
1005	CODE:	2010	PPCODE:
		2011	{
		2012	if (GIMME_V != G_VOID)
		2013	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		2014
		2015	if (items > 1)
		2016	{
		2017	SV *cb_cv = get_cb (callback);
		2018
1006	SvREFCNT_dec (req->callback);	2019	SvREFCNT_dec (req->callback);
1007	req->callback = newSVsv (callback);	2020	req->callback = SvREFCNT_inc (cb_cv);
		2021	}
		2022	}
1008		2023
1009	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	2024	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1010		2025
1011	void	2026	void
1012	add (aio_req grp, ...)	2027	add (aio_req grp, ...)
…		…
1044	AV *av;	2059	AV *av;
1045		2060
1046	grp->errorno = errno;	2061	grp->errorno = errno;
1047		2062
1048	av = newAV ();	2063	av = newAV ();
		2064	av_extend (av, items - 1);
1049		2065
1050	for (i = 1; i < items; ++i )	2066	for (i = 1; i < items; ++i )
1051	av_push (av, newSVsv (ST (i)));	2067	av_push (av, newSVsv (ST (i)));
1052		2068
1053	SvREFCNT_dec (grp->sv1);	2069	SvREFCNT_dec (grp->sv1);
…		…
1063	limit (aio_req grp, int limit)	2079	limit (aio_req grp, int limit)
1064	CODE:	2080	CODE:
1065	eio_grp_limit (grp, limit);	2081	eio_grp_limit (grp, limit);
1066		2082
1067	void	2083	void
1068	feed (aio_req grp, SV *callback=&PL_sv_undef)	2084	feed (aio_req grp, SV *callback = &PL_sv_undef)
1069	CODE:	2085	CODE:
1070	{	2086	{
1071	SvREFCNT_dec (grp->sv2);	2087	SvREFCNT_dec (grp->sv2);
1072	grp->sv2 = newSVsv (callback);	2088	grp->sv2 = newSVsv (callback);
		2089	grp->feed = aio_grp_feed;
1073		2090
1074	if (grp->int2 <= 0)	2091	if (grp->int2 <= 0)
1075	grp->int2 = 2;	2092	grp->int2 = 2;
1076		2093
1077	eio_grp_limit (grp, grp->int2);	2094	eio_grp_limit (grp, grp->int2);

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