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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.155 by root, Fri Jul 17 00:56:54 2009 UTC vs.
Revision 1.228 by root, Fri Jan 24 23:46:16 2014 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
20	/* perl namespace pollution */	33	/* perl namespace pollution */
21	#undef VERSION	34	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		35
72	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	38	#undef readdir
75	#undef opendir	39	#undef opendir
76	#undef closedir	40	#undef closedir
77		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
79		78
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else	79	#else
86	# define VAL64 NV	80
87	# define SvVAL64 SvNV	81	#include <sys/time.h>
88	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
89	#endif	89	#endif
90		90
91	/*****************************************************************************/	91	/*****************************************************************************/
92		92
93	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	99	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	100	#define expect_true(expr) expect ((expr) != 0, 1)
101		101
102	/*****************************************************************************/	102	/*****************************************************************************/
103		103
104	static HV *stash;
105	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
108		107
109	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110	#define AIO_GRP_KLASS "IO::AIO::GRP"
111		109
112	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
113	SV *callback; \	111	SV *callback; \
114	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
115	STRLEN stroffset; \	114	STRLEN stroffset; \
116	SV *self;	115	SV *self;
117		116
118	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
119		118
		119	#include "libeio/config.h"
120	#include "libeio/eio.h"	120	#include "libeio/eio.h"
121
122	#ifndef POSIX_FADV_NORMAL
123	# define POSIX_FADV_NORMAL 0
124	# define NO_FADVISE 1
125	#endif
126
127	#ifndef POSIX_FADV_SEQUENTIAL
128	# define POSIX_FADV_SEQUENTIAL 0
129	#endif
130
131	#ifndef POSIX_FADV_RANDOM
132	# define POSIX_FADV_RANDOM 0
133	#endif
134
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138
139	#ifndef POSIX_FADV_WILLNEED
140	# define POSIX_FADV_WILLNEED 0
141	#endif
142
143	#ifndef POSIX_FADV_DONTNEED
144	# define POSIX_FADV_DONTNEED 0
145	#endif
146		121
147	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
148	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
149	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
150	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
151		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#if PAGESIZE <= 0
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (actually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		224	return;
		225
		226	if (!incmap->fm_mapped_extents)
		227	goto done;
		228
		229	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		230	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		231	errno = ENOMEM;
		232	if (!fiemap)
		233	return;
		234
		235	req->ptr1 = fiemap;
		236
		237	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		238	{
		239	struct fiemap_extent *e = incmap->fm_extents + count;
		240
		241	if (e->fe_logical + e->fe_length >= end_offset)
		242	goto done;
		243
		244	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		245
		246	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		247	goto done;
		248
		249	}
		250	}
		251
		252	done:
		253	req->result = 0;
		254
		255	#else
		256	errno = ENOSYS;
		257	#endif
		258	}
		259
		260	/*****************************************************************************/
		261
152	enum {	262	enum {
153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	263	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
154	};	264	};
155		265
156	#include "libeio/eio.c"
157
158	typedef eio_req *aio_req;	266	typedef eio_req *aio_req;
159	typedef eio_req *aio_req_ornot;	267	typedef eio_req *aio_req_ornot;
		268	typedef eio_wd aio_wd;
160		269
161	static SV *on_next_submit;	270	static SV *on_next_submit;
162	static int next_pri = EIO_PRI_DEFAULT;	271	static int next_pri = EIO_PRI_DEFAULT;
163	static int max_outstanding;	272	static int max_outstanding;
164		273
165	static s_epipe respipe;	274	static s_epipe respipe;
166		275
167	static void req_destroy (aio_req req);	276	static void req_destroy (aio_req req);
168	static void req_cancel (aio_req req);	277	static void req_cancel (aio_req req);
169		278
170	static void want_poll (void)	279	static void
		280	want_poll (void)
171	{	281	{
172	/* write a dummy byte to the pipe so fh becomes ready */	282	/* write a dummy byte to the pipe so fh becomes ready */
173	s_epipe_signal (&respipe);	283	s_epipe_signal (&respipe);
174	}	284	}
175		285
176	static void done_poll (void)	286	static void
		287	done_poll (void)
177	{	288	{
178	/* read any signals sent by the worker threads */	289	/* read any signals sent by the worker threads */
179	s_epipe_drain (&respipe);	290	s_epipe_drain (&respipe);
180	}	291	}
181		292
182	/* must be called at most once */	293	/* must be called at most once */
183	static SV *req_sv (aio_req req, const char *klass)	294	static SV *
		295	req_sv (aio_req req, HV *stash)
184	{	296	{
185	if (!req->self)	297	if (!req->self)
186	{	298	{
187	req->self = (SV *)newHV ();	299	req->self = (SV *)newHV ();
188	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	300	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189	}	301	}
190		302
191	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	303	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192	}	304	}
193		305
194	static aio_req SvAIO_REQ (SV *sv)	306	static SV *
		307	newSVaio_wd (aio_wd wd)
		308	{
		309	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		310	}
		311
		312	static aio_req
		313	SvAIO_REQ (SV *sv)
195	{	314	{
196	MAGIC *mg;	315	MAGIC *mg;
197		316
198	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	317	if (!SvROK (sv)
		318	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		319	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		320	&& SvSTASH (SvRV (sv)) != aio_req_stash
		321	&& !sv_derived_from (sv, "IO::AIO::REQ")))
199	croak ("object of class " AIO_REQ_KLASS " expected");	322	croak ("object of class IO::AIO::REQ expected");
200		323
201	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	324	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202		325
203	return mg ? (aio_req)mg->mg_ptr : 0;	326	return mg ? (aio_req)mg->mg_ptr : 0;
204	}	327	}
205		328
		329	static aio_wd
		330	SvAIO_WD (SV *sv)
		331	{
		332	if (!SvROK (sv)
		333	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		334	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		335	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		336
		337	return (aio_wd)(long)SvIVX (SvRV (sv));
		338	}
		339
		340	static void
206	static void aio_grp_feed (aio_req grp)	341	aio_grp_feed (aio_req grp)
207	{	342	{
208	if (grp->sv2 && SvOK (grp->sv2))	343	if (grp->sv2 && SvOK (grp->sv2))
209	{	344	{
210	dSP;	345	dSP;
211		346
212	ENTER;	347	ENTER;
213	SAVETMPS;	348	SAVETMPS;
214	PUSHMARK (SP);	349	PUSHMARK (SP);
215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	350	XPUSHs (req_sv (grp, aio_grp_stash));
216	PUTBACK;	351	PUTBACK;
217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	352	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218	SPAGAIN;	353	SPAGAIN;
219	FREETMPS;	354	FREETMPS;
220	LEAVE;	355	LEAVE;
221	}	356	}
222	}	357	}
223		358
		359	static void
224	static void req_submit (eio_req *req)	360	req_submit (eio_req *req)
225	{	361	{
226	eio_submit (req);	362	eio_submit (req);
227		363
228	if (expect_false (on_next_submit))	364	if (expect_false (on_next_submit))
229	{	365	{
…		…
236	PUTBACK;	372	PUTBACK;
237	call_sv (cb, G_DISCARD | G_EVAL);	373	call_sv (cb, G_DISCARD | G_EVAL);
238	}	374	}
239	}	375	}
240		376
		377	static int
241	static int req_invoke (eio_req *req)	378	req_invoke (eio_req *req)
242	{	379	{
243	dSP;
244
245	if (req->flags & FLAG_SV2_RO_OFF)	380	if (req->flags & FLAG_SV2_RO_OFF)
246	SvREADONLY_off (req->sv2);	381	SvREADONLY_off (req->sv2);
247		382
248	if (!EIO_CANCELLED (req) && req->callback)	383	if (!EIO_CANCELLED (req) && req->callback)
249	{	384	{
		385	dSP;
		386	static SV *sv_result_cache; /* caches the result integer SV */
		387	SV *sv_result;
		388
250	ENTER;	389	ENTER;
251	SAVETMPS;	390	SAVETMPS;
252	PUSHMARK (SP);	391	PUSHMARK (SP);
253	EXTEND (SP, 1);	392	EXTEND (SP, 1);
254		393
		394	/* do not recreate the result IV from scratch each time */
		395	if (expect_true (sv_result_cache))
		396	{
		397	sv_result = sv_result_cache; sv_result_cache = 0;
		398	SvIV_set (sv_result, req->result);
		399	SvIOK_only (sv_result);
		400	}
		401	else
		402	{
		403	sv_result = newSViv (req->result);
		404	SvREADONLY_on (sv_result);
		405	}
		406
255	switch (req->type)	407	switch (req->type)
256	{	408	{
		409	case EIO_WD_OPEN:
		410	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		411	break;
		412
257	case EIO_READDIR:	413	case EIO_READDIR:
258	{	414	{
259	SV *rv = &PL_sv_undef;	415	SV *rv = &PL_sv_undef;
260		416
261	if (req->result >= 0)	417	if (req->result >= 0)
…		…
326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	482	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
327	char sym [64];	483	char sym [64];
328	int symlen;	484	int symlen;
329		485
330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	486	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
331	gv_init (gv, stash, sym, symlen, 0);	487	gv_init (gv, aio_stash, sym, symlen, 0);
332		488
333	symlen = snprintf (	489	symlen = snprintf (
334	sym,	490	sym,
335	sizeof (sym),	491	sizeof (sym),
336	"%s&=%d",	492	"%s&=%d",
…		…
344		500
345	PUSHs (fh);	501	PUSHs (fh);
346	}	502	}
347	break;	503	break;
348		504
		505	case EIO_STATVFS:
		506	case EIO_FSTATVFS:
		507	{
		508	SV *rv = &PL_sv_undef;
		509
		510	#ifndef _WIN32
		511	if (req->result >= 0)
		512	{
		513	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		514	HV *hv = newHV ();
		515	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		516	* chooses to make it a struct.
		517	*/
		518	unsigned long fsid = 0;
		519	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		520
		521	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		522
		523	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		524	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		525	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		526	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		527	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		528	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		529	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		530	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		531	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		532	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		533	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		534	}
		535	#endif
		536
		537	PUSHs (rv);
		538	}
		539
		540	break;
		541
349	case EIO_GROUP:	542	case EIO_GROUP:
350	req->int1 = 2; /* mark group as finished */	543	req->int1 = 2; /* mark group as finished */
351		544
352	if (req->sv1)	545	if (req->sv1)
353	{	546	{
…		…
363	case EIO_NOP:	556	case EIO_NOP:
364	case EIO_BUSY:	557	case EIO_BUSY:
365	break;	558	break;
366		559
367	case EIO_READLINK:	560	case EIO_READLINK:
		561	case EIO_REALPATH:
368	if (req->result > 0)	562	if (req->result > 0)
369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	563	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
370	break;	564	break;
371		565
372	case EIO_STAT:	566	case EIO_STAT:
373	case EIO_LSTAT:	567	case EIO_LSTAT:
374	case EIO_FSTAT:	568	case EIO_FSTAT:
375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	569	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		570
376	PL_laststatval = req->result;	571	if (!(PL_laststatval = req->result))
		572	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	573	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378	PUSHs (sv_2mortal (newSViv (req->result)));	574
		575	PUSHs (sv_result);
		576	break;
		577
		578	case EIO_SEEK:
		579	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
379	break;	580	break;
380		581
381	case EIO_READ:	582	case EIO_READ:
382	{	583	{
383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	584	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
384	*SvEND (req->sv2) = 0;	585	*SvEND (req->sv2) = 0;
385	SvPOK_only (req->sv2);	586	SvPOK_only (req->sv2);
386	SvSETMAGIC (req->sv2);	587	SvSETMAGIC (req->sv2);
387	PUSHs (sv_2mortal (newSViv (req->result)));	588	PUSHs (sv_result);
388	}	589	}
389	break;	590	break;
390		591
391	case EIO_DUP2:	592	case EIO_CUSTOM:
		593	if (req->feed == fiemap)
		594	{
		595	#if HAVE_FIEMAP
		596	if (!req->result)
		597	{
		598	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		599
		600	if (fiemap->fm_extent_count)
		601	{
		602	AV *av = newAV ();
		603	int i;
		604
		605	while (fiemap->fm_mapped_extents)
		606	{
		607	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		608	AV *ext_av = newAV ();
		609
		610	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		611	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		612	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		613	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		614
		615	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		616	}
		617
		618	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		619	}
		620	else
		621	{
		622	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		623	PUSHs (sv_result);
		624	}
		625	}
		626	#endif
		627	}
		628	else
		629	PUSHs (sv_result);
		630	break;
		631
		632	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392	if (req->result > 0)	633	if (req->result > 0)
393	req->result = 0;	634	SvIV_set (sv_result, 0);
394	/* FALLTHROUGH */	635	/* FALLTHROUGH */
395		636
396	default:	637	default:
397	PUSHs (sv_2mortal (newSViv (req->result)));	638	PUSHs (sv_result);
398	break;	639	break;
399	}	640	}
400		641
401	errno = req->errorno;	642	errno = req->errorno;
402		643
403	PUTBACK;	644	PUTBACK;
404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	645	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405	SPAGAIN;	646	SPAGAIN;
406		647
		648	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		649	SvREFCNT_dec (sv_result);
		650	else
		651	sv_result_cache = sv_result;
		652
407	FREETMPS;	653	FREETMPS;
408	LEAVE;	654	LEAVE;
409		655
410	PUTBACK;	656	PUTBACK;
411	}	657	}
412		658
413	return !!SvTRUE (ERRSV);	659	return !!SvTRUE (ERRSV);
414	}	660	}
415		661
		662	static void
416	static void req_destroy (aio_req req)	663	req_destroy (aio_req req)
417	{	664	{
418	if (req->self)	665	if (req->self)
419	{	666	{
420	sv_unmagic (req->self, PERL_MAGIC_ext);	667	sv_unmagic (req->self, PERL_MAGIC_ext);
421	SvREFCNT_dec (req->self);	668	SvREFCNT_dec (req->self);
422	}	669	}
423		670
424	SvREFCNT_dec (req->sv1);	671	SvREFCNT_dec (req->sv1);
425	SvREFCNT_dec (req->sv2);	672	SvREFCNT_dec (req->sv2);
		673	SvREFCNT_dec (req->sv3);
		674	SvREFCNT_dec (req->sv4);
426	SvREFCNT_dec (req->callback);	675	SvREFCNT_dec (req->callback);
427		676
428	Safefree (req);	677	free (req);
429	}	678	}
430		679
		680	static void
431	static void req_cancel_subs (aio_req grp)	681	req_cancel_subs (aio_req grp)
432	{	682	{
433	aio_req sub;
434
435	if (grp->type != EIO_GROUP)	683	if (grp->type != EIO_GROUP)
436	return;	684	return;
437		685
438	SvREFCNT_dec (grp->sv2);	686	SvREFCNT_dec (grp->sv2);
439	grp->sv2 = 0;	687	grp->sv2 = 0;
440		688
441	eio_grp_cancel (grp);	689	eio_grp_cancel (grp);
442	}	690	}
443		691
444	static void	692	static void ecb_cold
445	create_respipe (void)	693	create_respipe (void)
446	{	694	{
447	if (s_epipe_renew (&respipe))	695	if (s_epipe_renew (&respipe))
448	croak ("IO::AIO: unable to initialize result pipe");	696	croak ("IO::AIO: unable to initialize result pipe");
449	}	697	}
450		698
451	static void poll_wait (void)	699	static void
		700	poll_wait (void)
452	{	701	{
453	while (eio_nreqs ())	702	while (eio_nreqs ())
454	{	703	{
455	int size;	704	int size;
456		705
…		…
465		714
466	s_epipe_wait (&respipe);	715	s_epipe_wait (&respipe);
467	}	716	}
468	}	717	}
469		718
470	static int poll_cb (void)	719	static int
		720	poll_cb (void)
471	{	721	{
472	for (;;)	722	for (;;)
473	{	723	{
474	int res = eio_poll ();	724	int res = eio_poll ();
475		725
…		…
481		731
482	poll_wait ();	732	poll_wait ();
483	}	733	}
484	}	734	}
485		735
486	static void atfork_child (void)	736	static void ecb_cold
		737	reinit (void)
487	{	738	{
488	create_respipe ();	739	create_respipe ();
		740
		741	if (eio_init (want_poll, done_poll) < 0)
		742	croak ("IO::AIO: unable to initialise eio library");
489	}	743	}
		744
		745	/*****************************************************************************/
		746
		747	#if !_POSIX_MAPPED_FILES
		748	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		749	# define munmap(addr,length) EIO_ENOSYS ()
		750	#endif
		751
		752	#if !_POSIX_MEMORY_PROTECTION
		753	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		754	# define PROT_NONE 0
		755	# define PROT_WRITE 0
		756	# define MAP_PRIVATE 0
		757	# define MAP_SHARED 0
		758	# define MAP_FIXED 0
		759	#endif
		760
		761	#define MMAP_MAGIC PERL_MAGIC_ext
		762
		763	static int ecb_cold
		764	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		765	{
		766	int old_errno = errno;
		767	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		768	errno = old_errno;
		769
		770	mg->mg_obj = 0; /* just in case */
		771
		772	SvREADONLY_off (sv);
		773
		774	if (SvPVX (sv) != mg->mg_ptr)
		775	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		776
		777	SvCUR_set (sv, 0);
		778	SvPVX (sv) = 0;
		779	SvOK_off (sv);
		780
		781	return 0;
		782	}
		783
		784	static MGVTBL mmap_vtbl = {
		785	0, 0, 0, 0, mmap_free
		786	};
		787
		788	/*****************************************************************************/
490		789
491	static SV *	790	static SV *
492	get_cb (SV *cb_sv)	791	get_cb (SV *cb_sv)
493	{	792	{
494	SvGETMAGIC (cb_sv);	793	SvGETMAGIC (cb_sv);
495	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	794	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
496	}	795	}
497		796
		797	static aio_req ecb_noinline
		798	dreq (SV *callback)
		799	{
		800	SV *cb_cv;
		801	aio_req req;
		802	int req_pri = next_pri;
		803	next_pri = EIO_PRI_DEFAULT;
		804
		805	cb_cv = get_cb (callback);
		806
		807	req = calloc (sizeof (*req), 1);
		808	if (!req)
		809	croak ("out of memory during eio_req allocation");
		810
		811	req->callback = SvREFCNT_inc (cb_cv);
		812	req->pri = req_pri;
		813
		814	return req;
		815	}
		816
498	#define dREQ \	817	#define dREQ \
499	SV *cb_cv; \	818	aio_req req = dreq (callback); \
500	aio_req req; \
501	int req_pri = next_pri; \
502	next_pri = EIO_PRI_DEFAULT; \
503	\
504	cb_cv = get_cb (callback); \
505	\
506	Newz (0, req, 1, eio_req); \
507	if (!req) \
508	croak ("out of memory during eio_req allocation"); \
509	\
510	req->callback = SvREFCNT_inc (cb_cv); \
511	req->pri = req_pri
512		819
513	#define REQ_SEND \	820	#define REQ_SEND \
514	PUTBACK; \	821	PUTBACK; \
515	req_submit (req); \	822	req_submit (req); \
516	SPAGAIN; \	823	SPAGAIN; \
517	\	824	\
518	if (GIMME_V != G_VOID) \	825	if (GIMME_V != G_VOID) \
519	XPUSHs (req_sv (req, AIO_REQ_KLASS));	826	XPUSHs (req_sv (req, aio_req_stash));
		827
		828	ecb_inline void
		829	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		830	{
		831	if (expect_false (SvROK (path)))
		832	{
		833	SV *rv = SvRV (path);
		834	SV *wdob;
		835
		836	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		837	{
		838	path = AvARRAY (rv)[1];
		839	wdob = AvARRAY (rv)[0];
		840
		841	if (SvOK (wdob))
		842	{
		843	*wd = SvAIO_WD (wdob);
		844	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		845	}
		846	else
		847	*wd = EIO_INVALID_WD;
		848	}
		849	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		850	{
		851	*wd = (aio_wd)(long)SvIVX (rv);
		852	*wdsv = SvREFCNT_inc_NN (rv);
		853	*ptr = ".";
		854	return; /* path set to "." */
		855	}
		856	else
		857	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		858	}
		859
		860	*pathsv = newSVsv (path);
		861	*ptr = SvPVbyte_nolen (*pathsv);
		862	}
		863
		864	static void ecb_noinline
		865	req_set_path1 (aio_req req, SV *path)
		866	{
		867	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		868	}
		869
		870	static void ecb_noinline
		871	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		872	{
		873	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		874
		875	switch (SvTYPE (rv))
		876	{
		877	case SVt_PVIO:
		878	case SVt_PVLV:
		879	case SVt_PVGV:
		880	req->type = type_fh;
		881	req->sv1 = newSVsv (fh_or_path);
		882	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		883	break;
		884
		885	default:
		886	req->type = type_path;
		887	req_set_path1 (req, fh_or_path);
		888	break;
		889	}
		890	}
		891
		892	XS(boot_IO__AIO) ecb_cold;
520		893
521	MODULE = IO::AIO PACKAGE = IO::AIO	894	MODULE = IO::AIO PACKAGE = IO::AIO
522		895
523	PROTOTYPES: ENABLE	896	PROTOTYPES: ENABLE
524		897
…		…
526	{	899	{
527	static const struct {	900	static const struct {
528	const char *name;	901	const char *name;
529	IV iv;	902	IV iv;
530	} *civ, const_iv[] = {	903	} *civ, const_iv[] = {
531	# define const_iv(name, value) { # name, (IV) value },	904	# define const_niv(name, value) { # name, (IV) value },
		905	# define const_iv(name) { # name, (IV) name },
532	# define const_eio(name) { # name, (IV) EIO_ ## name },	906	# define const_eio(name) { # name, (IV) EIO_ ## name },
533	const_iv (EXDEV , EXDEV)	907
		908	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		909
534	const_iv (ENOSYS , ENOSYS)	910	const_iv (ENOSYS)
		911	const_iv (EXDEV)
		912	const_iv (EBADR)
		913
535	const_iv (O_RDONLY, O_RDONLY)	914	const_iv (O_RDONLY)
536	const_iv (O_WRONLY, O_WRONLY)	915	const_iv (O_WRONLY)
		916	const_iv (O_RDWR)
537	const_iv (O_CREAT , O_CREAT)	917	const_iv (O_CREAT)
538	const_iv (O_TRUNC , O_TRUNC)	918	const_iv (O_TRUNC)
539	#ifndef _WIN32	919	const_iv (O_EXCL)
		920	const_iv (O_APPEND)
		921
		922	const_iv (O_ASYNC)
		923	const_iv (O_DIRECT)
		924	const_iv (O_NOATIME)
		925
		926	const_iv (O_CLOEXEC)
		927	const_iv (O_NOCTTY)
		928	const_iv (O_NOFOLLOW)
		929	const_iv (O_NONBLOCK)
		930	const_iv (O_EXEC)
		931	const_iv (O_SEARCH)
		932	const_iv (O_DIRECTORY)
		933	const_iv (O_DSYNC)
		934	const_iv (O_RSYNC)
		935	const_iv (O_SYNC)
		936	const_iv (O_TTY_INIT)
		937
540	const_iv (S_IFIFO , S_IFIFO)	938	const_iv (S_IFIFO)
541	#endif	939	const_iv (S_IFCHR)
		940	const_iv (S_IFBLK)
		941	const_iv (S_IFLNK)
		942	const_iv (S_IFREG)
		943	const_iv (S_IFDIR)
		944	const_iv (S_IFWHT)
		945	const_iv (S_IFSOCK)
		946	const_iv (S_IFMT)
		947
542	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	948	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
543	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	949	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
544	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	950	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
545	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	951	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
546	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	952	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
547	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	953	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		954
		955	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		956	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		957	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		958	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		959	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		960
		961	const_iv (ST_RDONLY)
		962	const_iv (ST_NOSUID)
		963	const_iv (ST_NODEV)
		964	const_iv (ST_NOEXEC)
		965	const_iv (ST_SYNCHRONOUS)
		966	const_iv (ST_MANDLOCK)
		967	const_iv (ST_WRITE)
		968	const_iv (ST_APPEND)
		969	const_iv (ST_IMMUTABLE)
		970	const_iv (ST_NOATIME)
		971	const_iv (ST_NODIRATIME)
		972	const_iv (ST_RELATIME)
		973
		974	const_iv (PROT_NONE)
		975	const_iv (PROT_EXEC)
		976	const_iv (PROT_READ)
		977	const_iv (PROT_WRITE)
		978
		979	/*const_iv (MAP_FIXED)*/
		980	const_iv (MAP_PRIVATE)
		981	const_iv (MAP_SHARED)
		982	const_iv (MAP_ANONYMOUS)
		983
		984	/* linuxish */
		985	const_iv (MAP_HUGETLB)
		986	const_iv (MAP_LOCKED)
		987	const_iv (MAP_NORESERVE)
		988	const_iv (MAP_POPULATE)
		989	const_iv (MAP_NONBLOCK)
		990
		991	const_iv (FIEMAP_FLAG_SYNC)
		992	const_iv (FIEMAP_FLAG_XATTR)
		993	const_iv (FIEMAP_FLAGS_COMPAT)
		994	const_iv (FIEMAP_EXTENT_LAST)
		995	const_iv (FIEMAP_EXTENT_UNKNOWN)
		996	const_iv (FIEMAP_EXTENT_DELALLOC)
		997	const_iv (FIEMAP_EXTENT_ENCODED)
		998	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		999	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1000	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1001	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1002	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1003	const_iv (FIEMAP_EXTENT_MERGED)
		1004	const_iv (FIEMAP_EXTENT_SHARED)
		1005
		1006	const_iv (SPLICE_F_MOVE)
		1007	const_iv (SPLICE_F_NONBLOCK)
		1008	const_iv (SPLICE_F_MORE)
		1009	const_iv (SPLICE_F_GIFT)
		1010
		1011	const_iv (SEEK_DATA)
		1012	const_iv (SEEK_HOLE)
		1013
		1014	/* libeio constants */
		1015	const_eio (SEEK_SET)
		1016	const_eio (SEEK_CUR)
		1017	const_eio (SEEK_END)
		1018
		1019	const_eio (MCL_FUTURE)
		1020	const_eio (MCL_CURRENT)
		1021
		1022	const_eio (MS_ASYNC)
		1023	const_eio (MS_INVALIDATE)
		1024	const_eio (MS_SYNC)
		1025
		1026	const_eio (MT_MODIFY)
548		1027
549	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1028	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
550	const_eio (SYNC_FILE_RANGE_WRITE)	1029	const_eio (SYNC_FILE_RANGE_WRITE)
551	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1030	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1031
		1032	const_eio (FALLOC_FL_KEEP_SIZE)
		1033	const_eio (FALLOC_FL_PUNCH_HOLE)
552		1034
553	const_eio (READDIR_DENTS)	1035	const_eio (READDIR_DENTS)
554	const_eio (READDIR_DIRS_FIRST)	1036	const_eio (READDIR_DIRS_FIRST)
555	const_eio (READDIR_STAT_ORDER)	1037	const_eio (READDIR_STAT_ORDER)
556	const_eio (READDIR_FOUND_UNKNOWN)	1038	const_eio (READDIR_FOUND_UNKNOWN)
…		…
564	const_eio (DT_LNK)	1046	const_eio (DT_LNK)
565	const_eio (DT_SOCK)	1047	const_eio (DT_SOCK)
566	const_eio (DT_WHT)	1048	const_eio (DT_WHT)
567	};	1049	};
568		1050
569	stash = gv_stashpv ("IO::AIO", 1);	1051	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1052	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1053	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1054	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
570		1055
571	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1056	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
572	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1057	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
573		1058
574	create_respipe ();	1059	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
575		1060
576	if (eio_init (want_poll, done_poll) < 0)	1061	reinit ();
577	croak ("IO::AIO: unable to initialise eio library");
578
579	/* atfork child called in fifo order, so before eio's handler */
580	X_THREAD_ATFORK (0, 0, atfork_child);
581	}	1062	}
582		1063
583	void	1064	void
		1065	reinit ()
		1066	PROTOTYPE:
		1067
		1068	void
584	max_poll_reqs (int nreqs)	1069	max_poll_reqs (unsigned int nreqs)
585	PROTOTYPE: $	1070	PROTOTYPE: $
586	CODE:	1071	CODE:
587	eio_set_max_poll_reqs (nreqs);	1072	eio_set_max_poll_reqs (nreqs);
588		1073
589	void	1074	void
…		…
591	PROTOTYPE: $	1076	PROTOTYPE: $
592	CODE:	1077	CODE:
593	eio_set_max_poll_time (nseconds);	1078	eio_set_max_poll_time (nseconds);
594		1079
595	void	1080	void
596	min_parallel (int nthreads)	1081	min_parallel (unsigned int nthreads)
597	PROTOTYPE: $	1082	PROTOTYPE: $
598	CODE:	1083	CODE:
599	eio_set_min_parallel (nthreads);	1084	eio_set_min_parallel (nthreads);
600		1085
601	void	1086	void
602	max_parallel (int nthreads)	1087	max_parallel (unsigned int nthreads)
603	PROTOTYPE: $	1088	PROTOTYPE: $
604	CODE:	1089	CODE:
605	eio_set_max_parallel (nthreads);	1090	eio_set_max_parallel (nthreads);
606		1091
607	void	1092	void
608	max_idle (int nthreads)	1093	max_idle (unsigned int nthreads)
609	PROTOTYPE: $	1094	PROTOTYPE: $
610	CODE:	1095	CODE:
611	eio_set_max_idle (nthreads);	1096	eio_set_max_idle (nthreads);
612		1097
613	void	1098	void
		1099	idle_timeout (unsigned int seconds)
		1100	PROTOTYPE: $
		1101	CODE:
		1102	eio_set_idle_timeout (seconds);
		1103
		1104	void
614	max_outstanding (int maxreqs)	1105	max_outstanding (unsigned int maxreqs)
615	PROTOTYPE: $	1106	PROTOTYPE: $
616	CODE:	1107	CODE:
617	max_outstanding = maxreqs;	1108	max_outstanding = maxreqs;
618		1109
619	void	1110	void
		1111	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1112	PPCODE:
		1113	{
		1114	dREQ;
		1115
		1116	req->type = EIO_WD_OPEN;
		1117	req_set_path1 (req, pathname);
		1118
		1119	REQ_SEND;
		1120	}
		1121
		1122	void
620	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1123	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
621	PROTOTYPE: $$$;$
622	PPCODE:	1124	PPCODE:
623	{	1125	{
624	dREQ;	1126	dREQ;
625		1127
626	req->type = EIO_OPEN;	1128	req->type = EIO_OPEN;
627	req->sv1 = newSVsv (pathname);	1129	req_set_path1 (req, pathname);
628	req->ptr1 = SvPVbyte_nolen (req->sv1);
629	req->int1 = flags;	1130	req->int1 = flags;
630	req->int2 = mode;	1131	req->int2 = mode;
631		1132
632	REQ_SEND;	1133	REQ_SEND;
633	}	1134	}
634		1135
635	void	1136	void
636	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1137	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
637	PROTOTYPE: $;$
638	ALIAS:	1138	ALIAS:
639	aio_fsync = EIO_FSYNC	1139	aio_fsync = EIO_FSYNC
640	aio_fdatasync = EIO_FDATASYNC	1140	aio_fdatasync = EIO_FDATASYNC
		1141	aio_syncfs = EIO_SYNCFS
641	PPCODE:	1142	PPCODE:
642	{	1143	{
643	int fd = s_fileno_croak (fh, 0);	1144	int fd = s_fileno_croak (fh, 0);
644	dREQ;	1145	dREQ;
645		1146
646	req->type = ix;	1147	req->type = ix;
647	req->sv1 = newSVsv (fh);	1148	req->sv1 = newSVsv (fh);
648	req->int1 = fd;	1149	req->int1 = fd;
649		1150
650	REQ_SEND (req);	1151	REQ_SEND;
651	}	1152	}
652		1153
653	void	1154	void
654	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1155	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
655	PROTOTYPE: $$$$;$
656	PPCODE:	1156	PPCODE:
657	{	1157	{
658	int fd = s_fileno_croak (fh, 0);	1158	int fd = s_fileno_croak (fh, 0);
659	dREQ;	1159	dREQ;
660		1160
661	req->type = EIO_SYNC_FILE_RANGE;	1161	req->type = EIO_SYNC_FILE_RANGE;
662	req->sv1 = newSVsv (fh);	1162	req->sv1 = newSVsv (fh);
663	req->int1 = fd;	1163	req->int1 = fd;
664	req->offs = offset;	1164	req->offs = offset;
665	req->size = nbytes;	1165	req->size = nbytes;
666	req->int2 = flags;	1166	req->int2 = flags;
667		1167
668	REQ_SEND (req);	1168	REQ_SEND;
		1169	}
		1170
		1171	void
		1172	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1173	PPCODE:
		1174	{
		1175	int fd = s_fileno_croak (fh, 0);
		1176	dREQ;
		1177
		1178	req->type = EIO_FALLOCATE;
		1179	req->sv1 = newSVsv (fh);
		1180	req->int1 = fd;
		1181	req->int2 = mode;
		1182	req->offs = offset;
		1183	req->size = len;
		1184
		1185	REQ_SEND;
669	}	1186	}
670		1187
671	void	1188	void
672	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1189	aio_close (SV *fh, SV *callback=&PL_sv_undef)
673	PROTOTYPE: $;$
674	PPCODE:	1190	PPCODE:
675	{	1191	{
676	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1192	static int close_fd = -1; /* dummy fd to close fds via dup2 */
677	int fd = s_fileno_croak (fh, 0);	1193	int fd = s_fileno_croak (fh, 0);
678	dREQ;	1194	dREQ;
679		1195
680	if (close_pipe < 0)	1196	if (expect_false (close_fd < 0))
681	{	1197	{
682	int pipefd [2];	1198	int pipefd [2];
683		1199
		1200	if (
		1201	#ifdef _WIN32
		1202	_pipe (pipefd, 1, _O_BINARY) < 0
		1203	#else
684	if (pipe (pipefd) < 0	1204	pipe (pipefd) < 0
685	|| close (pipefd [1]) < 0
686	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1205	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1206	#endif
		1207	|| close (pipefd [1]) < 0
		1208	)
687	abort (); /*D*/	1209	abort (); /*D*/
688		1210
689	close_pipe = pipefd [0];	1211	close_fd = pipefd [0];
690	}	1212	}
691		1213
692	req->type = EIO_DUP2;	1214	req->type = EIO_DUP2;
693	req->int1 = close_pipe;	1215	req->int1 = close_fd;
694	req->sv2 = newSVsv (fh);	1216	req->sv2 = newSVsv (fh);
695	req->int2 = fd;	1217	req->int2 = fd;
696		1218
697	REQ_SEND (req);	1219	REQ_SEND;
		1220	}
		1221
		1222	void
		1223	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1224	PPCODE:
		1225	{
		1226	int fd = s_fileno_croak (fh, 0);
		1227	dREQ;
		1228
		1229	req->type = EIO_SEEK;
		1230	req->sv1 = newSVsv (fh);
		1231	req->int1 = fd;
		1232	req->offs = SvVAL64 (offset);
		1233	req->int2 = whence;
		1234
		1235	REQ_SEND;
698	}	1236	}
699		1237
700	void	1238	void
701	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1239	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
702	ALIAS:	1240	ALIAS:
703	aio_read = EIO_READ	1241	aio_read = EIO_READ
704	aio_write = EIO_WRITE	1242	aio_write = EIO_WRITE
705	PROTOTYPE: $$$$$;$
706	PPCODE:	1243	PPCODE:
707	{	1244	{
708	STRLEN svlen;	1245	STRLEN svlen;
709	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1246	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
710	char *svptr = SvPVbyte (data, svlen);	1247	char *svptr = SvPVbyte (data, svlen);
…		…
724	}	1261	}
725	else	1262	else
726	{	1263	{
727	/* read: check type and grow scalar as necessary */	1264	/* read: check type and grow scalar as necessary */
728	SvUPGRADE (data, SVt_PV);	1265	SvUPGRADE (data, SVt_PV);
		1266	if (SvLEN (data) >= SvCUR (data))
729	svptr = SvGROW (data, len + dataoffset + 1);	1267	svptr = SvGROW (data, len + dataoffset + 1);
		1268	else if (SvCUR (data) < len + dataoffset)
		1269	croak ("length + dataoffset outside of scalar, and cannot grow");
730	}	1270	}
731		1271
732	{	1272	{
733	dREQ;	1273	dREQ;
734		1274
…		…
750	REQ_SEND;	1290	REQ_SEND;
751	}	1291	}
752	}	1292	}
753		1293
754	void	1294	void
755	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1295	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
756	PROTOTYPE: $$;$	1296	ALIAS:
		1297	aio_readlink = EIO_READLINK
		1298	aio_realpath = EIO_REALPATH
757	PPCODE:	1299	PPCODE:
758	{	1300	{
759	SV *data;
760	dREQ;	1301	dREQ;
761		1302
762	req->type = EIO_READLINK;	1303	req->type = ix;
763	req->sv1 = newSVsv (path);	1304	req_set_path1 (req, pathname);
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765		1305
766	REQ_SEND;	1306	REQ_SEND;
767	}	1307	}
768		1308
769	void	1309	void
770	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1310	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
771	PROTOTYPE: $$$$;$
772	PPCODE:	1311	PPCODE:
773	{	1312	{
774	int ifd = s_fileno_croak (in_fh , 0);	1313	int ifd = s_fileno_croak (in_fh , 0);
775	int ofd = s_fileno_croak (out_fh, 1);	1314	int ofd = s_fileno_croak (out_fh, 1);
776	dREQ;	1315	dREQ;
777		1316
778	req->type = EIO_SENDFILE;	1317	req->type = EIO_SENDFILE;
779	req->sv1 = newSVsv (out_fh);	1318	req->sv1 = newSVsv (out_fh);
780	req->int1 = ofd;	1319	req->int1 = ofd;
…		…
786	REQ_SEND;	1325	REQ_SEND;
787	}	1326	}
788		1327
789	void	1328	void
790	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1329	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
791	PROTOTYPE: $$$;$
792	PPCODE:	1330	PPCODE:
793	{	1331	{
794	int fd = s_fileno_croak (fh, 0);	1332	int fd = s_fileno_croak (fh, 0);
795	dREQ;	1333	dREQ;
796		1334
797	req->type = EIO_READAHEAD;	1335	req->type = EIO_READAHEAD;
798	req->sv1 = newSVsv (fh);	1336	req->sv1 = newSVsv (fh);
799	req->int1 = fd;	1337	req->int1 = fd;
…		…
804	}	1342	}
805		1343
806	void	1344	void
807	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1345	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
808	ALIAS:	1346	ALIAS:
809	aio_stat = EIO_STAT	1347	aio_stat = EIO_STAT
810	aio_lstat = EIO_LSTAT	1348	aio_lstat = EIO_LSTAT
		1349	aio_statvfs = EIO_STATVFS
811	PPCODE:	1350	PPCODE:
812	{	1351	{
813	dREQ;	1352	dREQ;
814		1353
815	req->sv1 = newSVsv (fh_or_path);	1354	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
816
817	if (SvPOK (req->sv1))
818	{
819	req->type = ix;
820	req->ptr1 = SvPVbyte_nolen (req->sv1);
821	}
822	else
823	{
824	req->type = EIO_FSTAT;
825	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
826	}
827		1355
828	REQ_SEND;	1356	REQ_SEND;
829	}	1357	}
		1358
		1359	UV
		1360	major (UV dev)
		1361	ALIAS:
		1362	minor = 1
		1363	CODE:
		1364	RETVAL = ix ? major (dev) : minor (dev);
		1365	OUTPUT:
		1366	RETVAL
		1367
		1368	UV
		1369	makedev (UV maj, UV min)
		1370	CODE:
		1371	RETVAL = makedev (maj, min);
		1372	OUTPUT:
		1373	RETVAL
830		1374
831	void	1375	void
832	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1376	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
833	PPCODE:	1377	PPCODE:
834	{	1378	{
835	dREQ;	1379	dREQ;
836		1380
837	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1381	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
838	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1382	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
839	req->sv1 = newSVsv (fh_or_path);	1383	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
840
841	if (SvPOK (req->sv1))
842	{
843	req->type = EIO_UTIME;
844	req->ptr1 = SvPVbyte_nolen (req->sv1);
845	}
846	else
847	{
848	req->type = EIO_FUTIME;
849	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850	}
851		1384
852	REQ_SEND;	1385	REQ_SEND;
853	}	1386	}
854		1387
855	void	1388	void
856	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1389	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
857	PPCODE:	1390	PPCODE:
858	{	1391	{
859	dREQ;	1392	dREQ;
860		1393
861	req->sv1 = newSVsv (fh_or_path);
862	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1394	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
863		1395	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
864	if (SvPOK (req->sv1))
865	{
866	req->type = EIO_TRUNCATE;
867	req->ptr1 = SvPVbyte_nolen (req->sv1);
868	}
869	else
870	{
871	req->type = EIO_FTRUNCATE;
872	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
873	}
874		1396
875	REQ_SEND;	1397	REQ_SEND;
876	}	1398	}
877		1399
878	void	1400	void
879	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1401	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
880	ALIAS:
881	aio_chmod = EIO_CHMOD
882	aio_mkdir = EIO_MKDIR
883	PPCODE:	1402	PPCODE:
884	{	1403	{
885	dREQ;	1404	dREQ;
886		1405
887	req->int2 = mode;	1406	req->int2 = mode;
888	req->sv1 = newSVsv (fh_or_path);	1407	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
889
890	if (SvPOK (req->sv1))
891	{
892	req->type = ix;
893	req->ptr1 = SvPVbyte_nolen (req->sv1);
894	}
895	else
896	{
897	req->type = EIO_FCHMOD;
898	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
899	}
900		1408
901	REQ_SEND;	1409	REQ_SEND;
902	}	1410	}
903		1411
904	void	1412	void
…		…
907	{	1415	{
908	dREQ;	1416	dREQ;
909		1417
910	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1418	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
911	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1419	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
912	req->sv1 = newSVsv (fh_or_path);	1420	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
913
914	if (SvPOK (req->sv1))
915	{
916	req->type = EIO_CHOWN;
917	req->ptr1 = SvPVbyte_nolen (req->sv1);
918	}
919	else
920	{
921	req->type = EIO_FCHOWN;
922	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
923	}
924		1421
925	REQ_SEND;	1422	REQ_SEND;
926	}	1423	}
927		1424
928	void	1425	void
…		…
930	PPCODE:	1427	PPCODE:
931	{	1428	{
932	dREQ;	1429	dREQ;
933		1430
934	req->type = EIO_READDIR;	1431	req->type = EIO_READDIR;
935	req->sv1 = newSVsv (pathname);
936	req->ptr1 = SvPVbyte_nolen (req->sv1);
937	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1432	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
938		1433
939	if (flags & EIO_READDIR_DENTS)	1434	if (flags & EIO_READDIR_DENTS)
940	req->int1 |= EIO_READDIR_CUSTOM2;	1435	req->int1 |= EIO_READDIR_CUSTOM2;
941		1436
		1437	req_set_path1 (req, pathname);
		1438
942	REQ_SEND;	1439	REQ_SEND;
		1440	}
		1441
		1442	void
		1443	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	dREQ;
		1447
		1448	req->type = EIO_MKDIR;
		1449	req->int2 = mode;
		1450	req_set_path1 (req, pathname);
		1451
		1452	REQ_SEND;
943	}	1453	}
944		1454
945	void	1455	void
946	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1456	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
947	ALIAS:	1457	ALIAS:
…		…
951	PPCODE:	1461	PPCODE:
952	{	1462	{
953	dREQ;	1463	dREQ;
954		1464
955	req->type = ix;	1465	req->type = ix;
956	req->sv1 = newSVsv (pathname);	1466	req_set_path1 (req, pathname);
957	req->ptr1 = SvPVbyte_nolen (req->sv1);
958		1467
959	REQ_SEND;	1468	REQ_SEND;
960	}	1469	}
961		1470
962	void	1471	void
…		…
965	aio_link = EIO_LINK	1474	aio_link = EIO_LINK
966	aio_symlink = EIO_SYMLINK	1475	aio_symlink = EIO_SYMLINK
967	aio_rename = EIO_RENAME	1476	aio_rename = EIO_RENAME
968	PPCODE:	1477	PPCODE:
969	{	1478	{
		1479	eio_wd wd2 = 0;
970	dREQ;	1480	dREQ;
971		1481
972	req->type = ix;	1482	req->type = ix;
973	req->sv1 = newSVsv (oldpath);	1483	req_set_path1 (req, oldpath);
974	req->ptr1 = SvPVbyte_nolen (req->sv1);	1484	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
975	req->sv2 = newSVsv (newpath);	1485	req->int3 = (long)wd2;
976	req->ptr2 = SvPVbyte_nolen (req->sv2);
977		1486
978	REQ_SEND;	1487	REQ_SEND;
979	}	1488	}
980		1489
981	void	1490	void
…		…
983	PPCODE:	1492	PPCODE:
984	{	1493	{
985	dREQ;	1494	dREQ;
986		1495
987	req->type = EIO_MKNOD;	1496	req->type = EIO_MKNOD;
988	req->sv1 = newSVsv (pathname);
989	req->ptr1 = SvPVbyte_nolen (req->sv1);
990	req->int2 = (mode_t)mode;	1497	req->int2 = (mode_t)mode;
991	req->offs = dev;	1498	req->offs = dev;
		1499	req_set_path1 (req, pathname);
992		1500
993	REQ_SEND;	1501	REQ_SEND;
994	}	1502	}
995		1503
996	void	1504	void
		1505	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1506	ALIAS:
		1507	aio_mtouch = EIO_MTOUCH
		1508	aio_msync = EIO_MSYNC
		1509	PPCODE:
		1510	{
		1511	STRLEN svlen;
		1512	char *svptr = SvPVbyte (data, svlen);
		1513	UV len = SvUV (length);
		1514
		1515	if (offset < 0)
		1516	offset += svlen;
		1517
		1518	if (offset < 0 || offset > svlen)
		1519	croak ("offset outside of scalar");
		1520
		1521	if (!SvOK (length) || len + offset > svlen)
		1522	len = svlen - offset;
		1523
		1524	{
		1525	dREQ;
		1526
		1527	req->type = ix;
		1528	req->sv2 = SvREFCNT_inc (data);
		1529	req->ptr2 = (char *)svptr + offset;
		1530	req->size = len;
		1531	req->int1 = flags;
		1532
		1533	REQ_SEND;
		1534	}
		1535	}
		1536
		1537	void
		1538	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1539	PPCODE:
		1540	{
		1541	STRLEN svlen;
		1542	char *svptr = SvPVbyte (data, svlen);
		1543	UV len = SvUV (length);
		1544
		1545	if (offset < 0)
		1546	offset += svlen;
		1547
		1548	if (offset < 0 || offset > svlen)
		1549	croak ("offset outside of scalar");
		1550
		1551	if (!SvOK (length) || len + offset > svlen)
		1552	len = svlen - offset;
		1553
		1554	{
		1555	dREQ;
		1556
		1557	req->type = EIO_MLOCK;
		1558	req->sv2 = SvREFCNT_inc (data);
		1559	req->ptr2 = (char *)svptr + offset;
		1560	req->size = len;
		1561
		1562	REQ_SEND;
		1563	}
		1564	}
		1565
		1566	void
		1567	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1568	PPCODE:
		1569	{
		1570	dREQ;
		1571
		1572	req->type = EIO_MLOCKALL;
		1573	req->int1 = flags;
		1574
		1575	REQ_SEND;
		1576	}
		1577
		1578	void
		1579	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1580	PPCODE:
		1581	{
		1582	int fd = s_fileno_croak (fh, 0);
		1583	dREQ;
		1584
		1585	req->type = EIO_CUSTOM;
		1586	req->sv1 = newSVsv (fh);
		1587	req->int1 = fd;
		1588
		1589	req->feed = fiemap;
		1590	#if HAVE_FIEMAP
		1591	/* keep our fingers crossed that the next two types are 64 bit */
		1592	req->offs = start;
		1593	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1594	req->int2 = flags;
		1595	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1596	#endif
		1597
		1598	REQ_SEND;
		1599	}
		1600
		1601	void
997	aio_busy (double delay, SV *callback=&PL_sv_undef)	1602	aio_busy (double delay, SV *callback=&PL_sv_undef)
998	PPCODE:	1603	PPCODE:
999	{	1604	{
1000	dREQ;	1605	dREQ;
1001		1606
…		…
1005	REQ_SEND;	1610	REQ_SEND;
1006	}	1611	}
1007		1612
1008	void	1613	void
1009	aio_group (SV *callback=&PL_sv_undef)	1614	aio_group (SV *callback=&PL_sv_undef)
1010	PROTOTYPE: ;$
1011	PPCODE:	1615	PPCODE:
1012	{	1616	{
1013	dREQ;	1617	dREQ;
1014		1618
1015	req->type = EIO_GROUP;	1619	req->type = EIO_GROUP;
1016		1620
		1621	PUTBACK;
1017	req_submit (req);	1622	req_submit (req);
		1623	SPAGAIN;
		1624
1018	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1625	XPUSHs (req_sv (req, aio_grp_stash));
1019	}	1626	}
1020		1627
1021	void	1628	void
1022	aio_nop (SV *callback=&PL_sv_undef)	1629	aio_nop (SV *callback=&PL_sv_undef)
1023	ALIAS:	1630	ALIAS:
…		…
1032	REQ_SEND;	1639	REQ_SEND;
1033	}	1640	}
1034		1641
1035	int	1642	int
1036	aioreq_pri (int pri = 0)	1643	aioreq_pri (int pri = 0)
1037	PROTOTYPE: ;$
1038	CODE:	1644	CODE:
1039	RETVAL = next_pri;	1645	RETVAL = next_pri;
1040	if (items > 0)	1646	if (items > 0)
1041	{	1647	{
1042	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1648	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1054	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1660	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1055	next_pri = nice;	1661	next_pri = nice;
1056		1662
1057	void	1663	void
1058	flush ()	1664	flush ()
1059	PROTOTYPE:
1060	CODE:	1665	CODE:
1061	while (eio_nreqs ())	1666	while (eio_nreqs ())
1062	{	1667	{
1063	poll_wait ();	1668	poll_wait ();
1064	poll_cb ();	1669	poll_cb ();
1065	}	1670	}
1066		1671
1067	int	1672	int
1068	poll()	1673	poll ()
1069	PROTOTYPE:
1070	CODE:	1674	CODE:
1071	poll_wait ();	1675	poll_wait ();
1072	RETVAL = poll_cb ();	1676	RETVAL = poll_cb ();
1073	OUTPUT:	1677	OUTPUT:
1074	RETVAL	1678	RETVAL
1075		1679
1076	int	1680	int
1077	poll_fileno()	1681	poll_fileno ()
1078	PROTOTYPE:
1079	CODE:	1682	CODE:
1080	RETVAL = s_epipe_fd (&respipe);	1683	RETVAL = s_epipe_fd (&respipe);
1081	OUTPUT:	1684	OUTPUT:
1082	RETVAL	1685	RETVAL
1083		1686
1084	int	1687	int
1085	poll_cb(...)	1688	poll_cb (...)
1086	PROTOTYPE:	1689	PROTOTYPE:
1087	CODE:	1690	CODE:
1088	RETVAL = poll_cb ();	1691	RETVAL = poll_cb ();
1089	OUTPUT:	1692	OUTPUT:
1090	RETVAL	1693	RETVAL
1091		1694
1092	void	1695	void
1093	poll_wait()	1696	poll_wait ()
1094	PROTOTYPE:
1095	CODE:	1697	CODE:
1096	poll_wait ();	1698	poll_wait ();
1097		1699
1098	int	1700	int
1099	nreqs()	1701	nreqs ()
1100	PROTOTYPE:
1101	CODE:	1702	CODE:
1102	RETVAL = eio_nreqs ();	1703	RETVAL = eio_nreqs ();
1103	OUTPUT:	1704	OUTPUT:
1104	RETVAL	1705	RETVAL
1105		1706
1106	int	1707	int
1107	nready()	1708	nready ()
1108	PROTOTYPE:
1109	CODE:	1709	CODE:
1110	RETVAL = eio_nready ();	1710	RETVAL = eio_nready ();
1111	OUTPUT:	1711	OUTPUT:
1112	RETVAL	1712	RETVAL
1113		1713
1114	int	1714	int
1115	npending()	1715	npending ()
1116	PROTOTYPE:
1117	CODE:	1716	CODE:
1118	RETVAL = eio_npending ();	1717	RETVAL = eio_npending ();
1119	OUTPUT:	1718	OUTPUT:
1120	RETVAL	1719	RETVAL
1121		1720
1122	int	1721	int
1123	nthreads()	1722	nthreads ()
1124	PROTOTYPE:
1125	CODE:	1723	CODE:
1126	RETVAL = eio_nthreads ();	1724	RETVAL = eio_nthreads ();
1127	OUTPUT:	1725	OUTPUT:
1128	RETVAL	1726	RETVAL
1129		1727
1130	int	1728	int
1131	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1729	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1132	PROTOTYPE: $$$$
1133	CODE:	1730	CODE:
1134	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1135	RETVAL = posix_fadvise (fh, offset, length, advice);	1731	RETVAL = posix_fadvise (fh, offset, length, advice);
1136	#else
1137	RETVAL = errno = ENOSYS;
1138	#endif
1139	OUTPUT:	1732	OUTPUT:
1140	RETVAL	1733	RETVAL
1141		1734
1142	ssize_t	1735	IV
1143	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1736	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1144	PROTOTYPE: $$$$
1145	CODE:	1737	CODE:
1146	eio_sendfile_sync (ofh, ifh, offset, count);	1738	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1739	OUTPUT:
		1740	RETVAL
		1741
		1742	void
		1743	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1744	PPCODE:
		1745	sv_unmagic (scalar, MMAP_MAGIC);
		1746	{
		1747	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1748	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1749	if (addr == (void *)-1)
		1750	XSRETURN_NO;
		1751
		1752	sv_force_normal (scalar);
		1753
		1754	/* we store the length in mg_obj, as namlen is I32 :/ */
		1755	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1756	->mg_obj = (SV *)length;
		1757
		1758	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1759
		1760	if (!(prot & PROT_WRITE))
		1761	SvREADONLY_on (scalar);
		1762
		1763	if (SvLEN (scalar))
		1764	Safefree (SvPVX (scalar));
		1765
		1766	SvPVX (scalar) = (char *)addr;
		1767	SvCUR_set (scalar, length);
		1768	SvLEN_set (scalar, 0);
		1769	SvPOK_only (scalar);
		1770
		1771	XSRETURN_YES;
		1772	}
		1773
		1774	void
		1775	munmap (SV *scalar)
		1776	CODE:
		1777	sv_unmagic (scalar, MMAP_MAGIC);
		1778
		1779	int
		1780	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1781	ALIAS:
		1782	mprotect = 1
		1783	CODE:
		1784	{
		1785	STRLEN svlen;
		1786	void *addr = SvPVbyte (scalar, svlen);
		1787	size_t len = SvUV (length);
		1788
		1789	if (offset < 0)
		1790	offset += svlen;
		1791
		1792	if (offset < 0 || offset > svlen)
		1793	croak ("offset outside of scalar");
		1794
		1795	if (!SvOK (length) || len + offset > svlen)
		1796	len = svlen - offset;
		1797
		1798	addr = (void *)(((intptr_t)addr) + offset);
		1799	eio_page_align (&addr, &len);
		1800
		1801	switch (ix)
		1802	{
		1803	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1804	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1805	}
		1806	}
		1807	OUTPUT:
		1808	RETVAL
		1809
		1810	int
		1811	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1812	CODE:
		1813	{
		1814	STRLEN svlen;
		1815	void *addr = SvPVbyte (scalar, svlen);
		1816	size_t len = SvUV (length);
		1817
		1818	if (offset < 0)
		1819	offset += svlen;
		1820
		1821	if (offset < 0 || offset > svlen)
		1822	croak ("offset outside of scalar");
		1823
		1824	if (!SvOK (length) || len + offset > svlen)
		1825	len = svlen - offset;
		1826
		1827	addr = (void *)(((intptr_t)addr) + offset);
		1828	eio_page_align (&addr, &len);
		1829	#if _POSIX_MEMLOCK_RANGE
		1830	RETVAL = munlock (addr, len);
		1831	#else
		1832	RETVAL = EIO_ENOSYS ();
		1833	#endif
		1834	}
		1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int
		1839	munlockall ()
		1840	CODE:
		1841	#if _POSIX_MEMLOCK
		1842	munlockall ();
		1843	#else
		1844	RETVAL = EIO_ENOSYS ();
		1845	#endif
		1846	OUTPUT:
		1847	RETVAL
		1848
		1849	int
		1850	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1851	CODE:
		1852	{
		1853	#if HAVE_LINUX_SPLICE
		1854	loff_t off_in_, off_out_;
		1855	RETVAL = splice (
		1856	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1857	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1858	length, flags
		1859	);
		1860	#else
		1861	RETVAL = EIO_ENOSYS ();
		1862	#endif
		1863	}
		1864	OUTPUT:
		1865	RETVAL
		1866
		1867	int
		1868	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1869	CODE:
		1870	#if HAVE_LINUX_SPLICE
		1871	RETVAL = tee (rfh, wfh, length, flags);
		1872	#else
		1873	RETVAL = EIO_ENOSYS ();
		1874	#endif
		1875	OUTPUT:
		1876	RETVAL
		1877
		1878	int
		1879	pipesize (aio_rfd rfh, int new_size = -1)
		1880	PROTOTYPE: $;$
		1881	CODE:
		1882	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1883	if (new_size >= 0)
		1884	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1885	else
		1886	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1887	#else
		1888	errno = ENOSYS;
		1889	RETVAL = -1;
		1890	#endif
		1891	OUTPUT:
		1892	RETVAL
1147		1893
1148	void _on_next_submit (SV *cb)	1894	void _on_next_submit (SV *cb)
1149	CODE:	1895	CODE:
1150	SvREFCNT_dec (on_next_submit);	1896	SvREFCNT_dec (on_next_submit);
1151	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1897	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1152		1898
1153	PROTOTYPES: DISABLE	1899	PROTOTYPES: DISABLE
1154		1900
		1901	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1902
		1903	BOOT:
		1904	{
		1905	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1906	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1907	}
		1908
		1909	void
		1910	DESTROY (SV *self)
		1911	CODE:
		1912	{
		1913	aio_wd wd = SvAIO_WD (self);
		1914	#if HAVE_AT
		1915	{
		1916	SV *callback = &PL_sv_undef;
		1917	dREQ; /* clobbers next_pri :/ */
		1918	next_pri = req->pri; /* restore next_pri */
		1919	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1920	req->type = EIO_WD_CLOSE;
		1921	req->wd = wd;
		1922	REQ_SEND;
		1923	}
		1924	#else
		1925	eio_wd_close_sync (wd);
		1926	#endif
		1927	}
		1928
1155	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1929	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1156		1930
1157	void	1931	void
1158	cancel (aio_req_ornot req)	1932	cancel (aio_req_ornot req)
1159	CODE:	1933	CODE:

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