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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.152 by root, Tue Jul 14 00:32:27 2009 UTC vs.
Revision 1.234 by root, Thu Jun 25 15:20:11 2015 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	/* 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
20	/* perl namespace pollution */	37	/* perl namespace pollution */
21	#undef VERSION	38	#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		39
72	/* perl stupidly overrides readdir and maybe others */	40	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	41	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	42	#undef readdir
75	#undef opendir	43	#undef opendir
76	#undef closedir	44	#undef closedir
77		45
		46	#ifdef _WIN32
		47
		48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
		52	#undef open
		53	#undef read
		54	#undef write
		55	#undef send
		56	#undef recv
		57	#undef stat
		58	#undef lstat
		59	#undef fstat
		60	#undef truncate
		61	#undef ftruncate
		62	#undef open
		63	#undef link
		64	#undef close
		65	#undef unlink
		66	#undef mkdir
		67	#undef rmdir
		68	#undef rename
		69	#undef lseek
		70	#undef opendir
		71	#undef readdir
		72	#undef closedir
		73	#undef chmod
		74	#undef fchmod
		75	#undef dup
		76	#undef dup2
		77	#undef abort
		78	#undef pipe
		79
		80	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	81	#define EIO_STRUCT_STATI64
79		82
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	83	#else
86	# define VAL64 NV	84
87	# define SvVAL64 SvNV	85	#include <sys/time.h>
88	# define newSVval64 newSVnv	86	#include <sys/select.h>
		87	#include <unistd.h>
		88	#include <utime.h>
		89	#include <signal.h>
		90
		91	#define EIO_STRUCT_STAT Stat_t
		92
89	#endif	93	#endif
90		94
91	/*****************************************************************************/	95	/*****************************************************************************/
92		96
93	#if __GNUC__ >= 3	97	#if __GNUC__ >= 3
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	103	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	104	#define expect_true(expr) expect ((expr) != 0, 1)
101		105
102	/*****************************************************************************/	106	/*****************************************************************************/
103		107
104	static HV *stash;
105	typedef SV SV8; /* byte-sv, used for argument-checking */	108	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	109	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	110	typedef int aio_wfd; /* write file descriptor */
108		111
109	#define AIO_REQ_KLASS "IO::AIO::REQ"	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110	#define AIO_GRP_KLASS "IO::AIO::GRP"
111		113
112	#define EIO_REQ_MEMBERS \	114	#define EIO_REQ_MEMBERS \
113	SV *callback; \	115	SV *callback; \
114	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
115	STRLEN stroffset; \	118	STRLEN stroffset; \
116	SV *self;	119	SV *self;
117		120
118	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
119		122
		123	#include "libeio/config.h"
120	#include "libeio/eio.h"	124	#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		125
147	static int req_invoke (eio_req *req);	126	static int req_invoke (eio_req *req);
148	#define EIO_FINISH(req) req_invoke (req)	127	#define EIO_FINISH(req) req_invoke (req)
149	static void req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
150	#define EIO_DESTROY(req) req_destroy (req)	129	#define EIO_DESTROY(req) req_destroy (req)
151		130
		131	#include "libeio/eio.c"
		132
		133	#if !HAVE_POSIX_FADVISE
		134	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#if !HAVE_POSIX_MADVISE
		138	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		139	#endif
		140
		141	#ifndef MAP_ANONYMOUS
		142	# ifdef MAP_ANON
		143	# define MAP_ANONYMOUS MAP_ANON
		144	# else
		145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		146	# endif
		147	#endif
		148
		149	/* defines all sorts of constants to 0 unless they are already defined */
		150	#include "def0.h"
		151
		152	#ifndef makedev
		153	# define makedev(maj,min) (((maj) << 8) | (min))
		154	#endif
		155	#ifndef major
		156	# define major(dev) ((dev) >> 8)
		157	#endif
		158	#ifndef minor
		159	# define minor(dev) ((dev) & 0xff)
		160	#endif
		161
		162	#if PAGESIZE <= 0
		163	# define PAGESIZE sysconf (_SC_PAGESIZE)
		164	#endif
		165
		166	/*****************************************************************************/
		167
		168	static void
		169	fiemap (eio_req *req)
		170	{
		171	req->result = -1;
		172
		173	#if HAVE_FIEMAP
		174	/* assume some c99 */
		175	struct fiemap *fiemap = 0;
		176	size_t end_offset;
		177	int count = req->int3;
		178
		179	req->flags |= EIO_FLAG_PTR1_FREE;
		180
		181	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		182	/* increase in 3.5kb steps */
		183	if (count < 0)
		184	count = 8;
		185
		186	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		187	errno = ENOMEM;
		188	if (!fiemap)
		189	return;
		190
		191	req->ptr1 = fiemap;
		192
		193	fiemap->fm_start = req->offs;
		194	fiemap->fm_length = req->size;
		195	fiemap->fm_flags = req->int2;
		196	fiemap->fm_extent_count = count;
		197
		198	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		199	return;
		200
		201	if (req->int3 >= 0 /* not autosizing */
		202	|| !fiemap->fm_mapped_extents /* no more extents */
		203	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		204	goto done;
		205
		206	/* else we have to loop -
		207	* it would be tempting (actually I tried that first) to just query the
		208	* number of extents needed, but linux often feels like not returning all
		209	* extents, without telling us it left any out. this complicates
		210	* this quite a bit.
		211	*/
		212
		213	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		214
		215	for (;;)
		216	{
		217	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		218	char scratch[3072];
		219	struct fiemap *incmap = (struct fiemap *)scratch;
		220
		221	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		222	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		223	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		224	incmap->fm_flags = fiemap->fm_flags;
		225	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		226
		227	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		228	return;
		229
		230	if (!incmap->fm_mapped_extents)
		231	goto done;
		232
		233	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		234	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		235	errno = ENOMEM;
		236	if (!fiemap)
		237	return;
		238
		239	req->ptr1 = fiemap;
		240
		241	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		242	{
		243	struct fiemap_extent *e = incmap->fm_extents + count;
		244
		245	if (e->fe_logical + e->fe_length >= end_offset)
		246	goto done;
		247
		248	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		249
		250	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		251	goto done;
		252
		253	}
		254	}
		255
		256	done:
		257	req->result = 0;
		258
		259	#else
		260	errno = ENOSYS;
		261	#endif
		262	}
		263
		264	/*****************************************************************************/
		265
152	enum {	266	enum {
153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
154	};	268	};
155		269
156	#include "libeio/eio.c"
157
158	typedef eio_req *aio_req;	270	typedef eio_req *aio_req;
159	typedef eio_req *aio_req_ornot;	271	typedef eio_req *aio_req_ornot;
		272	typedef eio_wd aio_wd;
160		273
161	static SV *on_next_submit;	274	static SV *on_next_submit;
162	static int next_pri = EIO_PRI_DEFAULT;	275	static int next_pri = EIO_PRI_DEFAULT;
163	static int max_outstanding;	276	static int max_outstanding;
164		277
165	static int respipe_osf [2], respipe [2] = { -1, -1 };	278	static s_epipe respipe;
166		279
167	static void req_destroy (aio_req req);	280	static void req_destroy (aio_req req);
168	static void req_cancel (aio_req req);	281	static void req_cancel (aio_req req);
169		282
170	static void want_poll (void)	283	static void
		284	want_poll (void)
171	{	285	{
172	/* write a dummy byte to the pipe so fh becomes ready */	286	/* write a dummy byte to the pipe so fh becomes ready */
173	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	287	s_epipe_signal (&respipe);
174	}	288	}
175		289
176	static void done_poll (void)	290	static void
		291	done_poll (void)
177	{	292	{
178	/* read any signals sent by the worker threads */	293	/* read any signals sent by the worker threads */
179	char buf [4];	294	s_epipe_drain (&respipe);
180	while (respipe_read (respipe [0], buf, 4) == 4)
181	;
182	}	295	}
183		296
184	/* must be called at most once */	297	/* must be called at most once */
185	static SV *req_sv (aio_req req, const char *klass)	298	static SV *
		299	req_sv (aio_req req, HV *stash)
186	{	300	{
187	if (!req->self)	301	if (!req->self)
188	{	302	{
189	req->self = (SV *)newHV ();	303	req->self = (SV *)newHV ();
190	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	304	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
191	}	305	}
192		306
193	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	307	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
194	}	308	}
195		309
196	static aio_req SvAIO_REQ (SV *sv)	310	static SV *
		311	newSVaio_wd (aio_wd wd)
		312	{
		313	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		314	}
		315
		316	static aio_req
		317	SvAIO_REQ (SV *sv)
197	{	318	{
198	MAGIC *mg;	319	MAGIC *mg;
199		320
200	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	321	if (!SvROK (sv)
		322	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		323	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		324	&& SvSTASH (SvRV (sv)) != aio_req_stash
		325	&& !sv_derived_from (sv, "IO::AIO::REQ")))
201	croak ("object of class " AIO_REQ_KLASS " expected");	326	croak ("object of class IO::AIO::REQ expected");
202		327
203	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	328	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
204		329
205	return mg ? (aio_req)mg->mg_ptr : 0;	330	return mg ? (aio_req)mg->mg_ptr : 0;
206	}	331	}
207		332
		333	static aio_wd
		334	SvAIO_WD (SV *sv)
		335	{
		336	if (!SvROK (sv)
		337	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		338	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		339	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		340
		341	return (aio_wd)(long)SvIVX (SvRV (sv));
		342	}
		343
		344	static SV *
		345	newmortalFH (int fd, int flags)
		346	{
		347	if (fd < 0)
		348	return &PL_sv_undef;
		349
		350	GV *gv = (GV *)sv_newmortal ();
		351	char sym[64];
		352	int symlen;
		353
		354	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		355	gv_init (gv, aio_stash, sym, symlen, 0);
		356
		357	symlen = snprintf (
		358	sym,
		359	sizeof (sym),
		360	"%s&=%d",
		361	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		362	fd
		363	);
		364
		365	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		366	? (SV *)gv : &PL_sv_undef;
		367	}
		368
		369	static void
208	static void aio_grp_feed (aio_req grp)	370	aio_grp_feed (aio_req grp)
209	{	371	{
210	if (grp->sv2 && SvOK (grp->sv2))	372	if (grp->sv2 && SvOK (grp->sv2))
211	{	373	{
212	dSP;	374	dSP;
213		375
214	ENTER;	376	ENTER;
215	SAVETMPS;	377	SAVETMPS;
216	PUSHMARK (SP);	378	PUSHMARK (SP);
217	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	379	XPUSHs (req_sv (grp, aio_grp_stash));
218	PUTBACK;	380	PUTBACK;
219	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	381	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
220	SPAGAIN;	382	SPAGAIN;
221	FREETMPS;	383	FREETMPS;
222	LEAVE;	384	LEAVE;
223	}	385	}
224	}	386	}
225		387
		388	static void
226	static void req_submit (eio_req *req)	389	req_submit (eio_req *req)
227	{	390	{
228	eio_submit (req);	391	eio_submit (req);
229		392
230	if (expect_false (on_next_submit))	393	if (expect_false (on_next_submit))
231	{	394	{
…		…
238	PUTBACK;	401	PUTBACK;
239	call_sv (cb, G_DISCARD | G_EVAL);	402	call_sv (cb, G_DISCARD | G_EVAL);
240	}	403	}
241	}	404	}
242		405
		406	static int
243	static int req_invoke (eio_req *req)	407	req_invoke (eio_req *req)
244	{	408	{
245	dSP;
246
247	if (req->flags & FLAG_SV2_RO_OFF)	409	if (req->flags & FLAG_SV2_RO_OFF)
248	SvREADONLY_off (req->sv2);	410	SvREADONLY_off (req->sv2);
249		411
250	if (!EIO_CANCELLED (req) && req->callback)	412	if (!EIO_CANCELLED (req) && req->callback)
251	{	413	{
		414	dSP;
		415	static SV *sv_result_cache; /* caches the result integer SV */
		416	SV *sv_result;
		417
252	ENTER;	418	ENTER;
253	SAVETMPS;	419	SAVETMPS;
254	PUSHMARK (SP);	420	PUSHMARK (SP);
255	EXTEND (SP, 1);	421	EXTEND (SP, 1);
256		422
		423	/* do not recreate the result IV from scratch each time */
		424	if (expect_true (sv_result_cache))
		425	{
		426	sv_result = sv_result_cache; sv_result_cache = 0;
		427	SvIV_set (sv_result, req->result);
		428	SvIOK_only (sv_result);
		429	}
		430	else
		431	{
		432	sv_result = newSViv (req->result);
		433	SvREADONLY_on (sv_result);
		434	}
		435
257	switch (req->type)	436	switch (req->type)
258	{	437	{
		438	case EIO_WD_OPEN:
		439	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		440	break;
		441
259	case EIO_READDIR:	442	case EIO_READDIR:
260	{	443	{
261	SV *rv = &PL_sv_undef;	444	SV *rv = &PL_sv_undef;
262		445
263	if (req->result >= 0)	446	if (req->result >= 0)
…		…
316	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	499	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
317	}	500	}
318	break;	501	break;
319		502
320	case EIO_OPEN:	503	case EIO_OPEN:
		504	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		505	break;
		506
		507	case EIO_STATVFS:
		508	case EIO_FSTATVFS:
321	{	509	{
322	/* convert fd to fh */
323	SV *fh = &PL_sv_undef;	510	SV *rv = &PL_sv_undef;
324		511
		512	#ifndef _WIN32
325	if (req->result >= 0)	513	if (req->result >= 0)
326	{	514	{
		515	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
327	GV *gv = (GV *)sv_newmortal ();	516	HV *hv = newHV ();
328	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	517	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
329	char sym [64];	518	* chooses to make it a struct.
330	int symlen;
331		519	*/
332	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	520	unsigned long fsid = 0;
333	gv_init (gv, stash, sym, symlen, 0);	521	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
334		522
335	symlen = snprintf (	523	rv = sv_2mortal (newRV_noinc ((SV *)hv));
336	sym,
337	sizeof (sym),
338	"%s&=%d",
339	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
340	(int)req->result
341	);
342		524
343	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	525	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
344	fh = (SV *)gv;	526	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		527	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		528	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		529	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		530	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		531	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		532	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		533	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		534	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		535	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
345	}	536	}
		537	#endif
346		538
347	PUSHs (fh);	539	PUSHs (rv);
348	}	540	}
		541
349	break;	542	break;
350		543
351	case EIO_GROUP:	544	case EIO_GROUP:
352	req->int1 = 2; /* mark group as finished */	545	req->int1 = 2; /* mark group as finished */
353		546
…		…
365	case EIO_NOP:	558	case EIO_NOP:
366	case EIO_BUSY:	559	case EIO_BUSY:
367	break;	560	break;
368		561
369	case EIO_READLINK:	562	case EIO_READLINK:
		563	case EIO_REALPATH:
370	if (req->result > 0)	564	if (req->result > 0)
371	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	565	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
372	break;	566	break;
373		567
374	case EIO_STAT:	568	case EIO_STAT:
375	case EIO_LSTAT:	569	case EIO_LSTAT:
376	case EIO_FSTAT:	570	case EIO_FSTAT:
377	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	571	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		572
378	PL_laststatval = req->result;	573	if (!(PL_laststatval = req->result))
		574	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
379	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	575	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
380	PUSHs (sv_2mortal (newSViv (req->result)));	576
		577	PUSHs (sv_result);
		578	break;
		579
		580	case EIO_SEEK:
		581	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
381	break;	582	break;
382		583
383	case EIO_READ:	584	case EIO_READ:
384	{	585	{
385	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	586	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
386	*SvEND (req->sv2) = 0;	587	*SvEND (req->sv2) = 0;
387	SvPOK_only (req->sv2);	588	SvPOK_only (req->sv2);
388	SvSETMAGIC (req->sv2);	589	SvSETMAGIC (req->sv2);
389	PUSHs (sv_2mortal (newSViv (req->result)));	590	PUSHs (sv_result);
390	}	591	}
391	break;	592	break;
392		593
393	case EIO_DUP2:	594	case EIO_CUSTOM:
		595	if (req->feed == fiemap)
		596	{
		597	#if HAVE_FIEMAP
		598	if (!req->result)
		599	{
		600	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		601
		602	if (fiemap->fm_extent_count)
		603	{
		604	AV *av = newAV ();
		605	int i;
		606
		607	while (fiemap->fm_mapped_extents)
		608	{
		609	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		610	AV *ext_av = newAV ();
		611
		612	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		613	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		614	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		615	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		616
		617	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		618	}
		619
		620	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		621	}
		622	else
		623	{
		624	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		625	PUSHs (sv_result);
		626	}
		627	}
		628	#endif
		629	}
		630	else
		631	PUSHs (sv_result);
		632	break;
		633
		634	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
394	if (req->result > 0)	635	if (req->result > 0)
395	req->result = 0;	636	SvIV_set (sv_result, 0);
396	/* FALLTHROUGH */	637	/* FALLTHROUGH */
397		638
398	default:	639	default:
399	PUSHs (sv_2mortal (newSViv (req->result)));	640	PUSHs (sv_result);
400	break;	641	break;
401	}	642	}
402		643
403	errno = req->errorno;	644	errno = req->errorno;
404		645
405	PUTBACK;	646	PUTBACK;
406	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	647	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
407	SPAGAIN;	648	SPAGAIN;
408		649
		650	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		651	SvREFCNT_dec (sv_result);
		652	else
		653	sv_result_cache = sv_result;
		654
409	FREETMPS;	655	FREETMPS;
410	LEAVE;	656	LEAVE;
411		657
412	PUTBACK;	658	PUTBACK;
413	}	659	}
414		660
415	return !!SvTRUE (ERRSV);	661	return !!SvTRUE (ERRSV);
416	}	662	}
417		663
		664	static void
418	static void req_destroy (aio_req req)	665	req_destroy (aio_req req)
419	{	666	{
420	if (req->self)	667	if (req->self)
421	{	668	{
422	sv_unmagic (req->self, PERL_MAGIC_ext);	669	sv_unmagic (req->self, PERL_MAGIC_ext);
423	SvREFCNT_dec (req->self);	670	SvREFCNT_dec (req->self);
424	}	671	}
425		672
426	SvREFCNT_dec (req->sv1);	673	SvREFCNT_dec (req->sv1);
427	SvREFCNT_dec (req->sv2);	674	SvREFCNT_dec (req->sv2);
		675	SvREFCNT_dec (req->sv3);
		676	SvREFCNT_dec (req->sv4);
428	SvREFCNT_dec (req->callback);	677	SvREFCNT_dec (req->callback);
429		678
430	Safefree (req);	679	free (req);
431	}	680	}
432		681
		682	static void
433	static void req_cancel_subs (aio_req grp)	683	req_cancel_subs (aio_req grp)
434	{	684	{
435	aio_req sub;
436
437	if (grp->type != EIO_GROUP)	685	if (grp->type != EIO_GROUP)
438	return;	686	return;
439		687
440	SvREFCNT_dec (grp->sv2);	688	SvREFCNT_dec (grp->sv2);
441	grp->sv2 = 0;	689	grp->sv2 = 0;
442		690
443	eio_grp_cancel (grp);	691	eio_grp_cancel (grp);
444	}	692	}
445		693
446	#ifdef USE_SOCKETS_AS_HANDLES	694	static void ecb_cold
447	# define TO_SOCKET(x) (win32_get_osfhandle (x))	695	create_respipe (void)
448	#else	696	{
449	# define TO_SOCKET(x) (x)	697	if (s_epipe_renew (&respipe))
450	#endif	698	croak ("IO::AIO: unable to initialize result pipe");
		699	}
451		700
452	static void	701	static void
453	create_respipe (void)	702	poll_wait (void)
454	{	703	{
455	int old_readfd = respipe [0];
456
457	if (respipe [1] >= 0)
458	respipe_close (TO_SOCKET (respipe [1]));
459
460	#ifdef _WIN32
461	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
462	#else
463	if (pipe (respipe))
464	#endif
465	croak ("unable to initialize result pipe");
466
467	if (old_readfd >= 0)
468	{
469	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
470	croak ("unable to initialize result pipe(2)");
471
472	respipe_close (respipe [0]);
473	respipe [0] = old_readfd;
474	}
475
476	#ifdef _WIN32
477	int arg = 1;
478	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
479	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
480	#else
481	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
482	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
483	#endif
484	croak ("unable to initialize result pipe(3)");
485
486	respipe_osf [0] = TO_SOCKET (respipe [0]);
487	respipe_osf [1] = TO_SOCKET (respipe [1]);
488	}
489
490	static void poll_wait (void)
491	{
492	fd_set rfd;
493
494	while (eio_nreqs ())	704	while (eio_nreqs ())
495	{	705	{
496	int size;	706	int size;
497		707
498	X_LOCK (reslock);	708	X_LOCK (reslock);
…		…
502	if (size)	712	if (size)
503	return;	713	return;
504		714
505	etp_maybe_start_thread ();	715	etp_maybe_start_thread ();
506		716
507	FD_ZERO (&rfd);	717	s_epipe_wait (&respipe);
508	FD_SET (respipe [0], &rfd);
509
510	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
511	}	718	}
512	}	719	}
513		720
514	static int poll_cb (void)	721	static int
		722	poll_cb (void)
515	{	723	{
516	for (;;)	724	for (;;)
517	{	725	{
518	int res = eio_poll ();	726	int res = eio_poll ();
519		727
…		…
525		733
526	poll_wait ();	734	poll_wait ();
527	}	735	}
528	}	736	}
529		737
530	static void atfork_child (void)	738	static void ecb_cold
		739	reinit (void)
531	{	740	{
532	create_respipe ();	741	create_respipe ();
		742
		743	if (eio_init (want_poll, done_poll) < 0)
		744	croak ("IO::AIO: unable to initialise eio library");
533	}	745	}
		746
		747	/*****************************************************************************/
		748
		749	#if !_POSIX_MAPPED_FILES
		750	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		751	# define munmap(addr,length) EIO_ENOSYS ()
		752	#endif
		753
		754	#if !_POSIX_MEMORY_PROTECTION
		755	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		756	# define PROT_NONE 0
		757	# define PROT_WRITE 0
		758	# define MAP_PRIVATE 0
		759	# define MAP_SHARED 0
		760	# define MAP_FIXED 0
		761	#endif
		762
		763	#define MMAP_MAGIC PERL_MAGIC_ext
		764
		765	static int ecb_cold
		766	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		767	{
		768	int old_errno = errno;
		769	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		770	errno = old_errno;
		771
		772	mg->mg_obj = 0; /* just in case */
		773
		774	SvREADONLY_off (sv);
		775
		776	if (SvPVX (sv) != mg->mg_ptr)
		777	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		778
		779	SvCUR_set (sv, 0);
		780	SvPVX (sv) = 0;
		781	SvOK_off (sv);
		782
		783	return 0;
		784	}
		785
		786	static MGVTBL mmap_vtbl = {
		787	0, 0, 0, 0, mmap_free
		788	};
		789
		790	/*****************************************************************************/
534		791
535	static SV *	792	static SV *
536	get_cb (SV *cb_sv)	793	get_cb (SV *cb_sv)
537	{	794	{
538	SvGETMAGIC (cb_sv);	795	SvGETMAGIC (cb_sv);
539	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	796	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
540	}	797	}
541		798
		799	static aio_req ecb_noinline
		800	dreq (SV *callback)
		801	{
		802	SV *cb_cv;
		803	aio_req req;
		804	int req_pri = next_pri;
		805	next_pri = EIO_PRI_DEFAULT;
		806
		807	cb_cv = get_cb (callback);
		808
		809	req = calloc (sizeof (*req), 1);
		810	if (!req)
		811	croak ("out of memory during eio_req allocation");
		812
		813	req->callback = SvREFCNT_inc (cb_cv);
		814	req->pri = req_pri;
		815
		816	return req;
		817	}
		818
542	#define dREQ \	819	#define dREQ \
543	SV *cb_cv; \	820	aio_req req = dreq (callback); \
544	aio_req req; \
545	int req_pri = next_pri; \
546	next_pri = EIO_PRI_DEFAULT; \
547	\
548	cb_cv = get_cb (callback); \
549	\
550	Newz (0, req, 1, eio_req); \
551	if (!req) \
552	croak ("out of memory during eio_req allocation"); \
553	\
554	req->callback = SvREFCNT_inc (cb_cv); \
555	req->pri = req_pri
556		821
557	#define REQ_SEND \	822	#define REQ_SEND \
558	PUTBACK; \	823	PUTBACK; \
559	req_submit (req); \	824	req_submit (req); \
560	SPAGAIN; \	825	SPAGAIN; \
561	\	826	\
562	if (GIMME_V != G_VOID) \	827	if (GIMME_V != G_VOID) \
563	XPUSHs (req_sv (req, AIO_REQ_KLASS));	828	XPUSHs (req_sv (req, aio_req_stash));
		829
		830	ecb_inline void
		831	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		832	{
		833	if (expect_false (SvROK (path)))
		834	{
		835	SV *rv = SvRV (path);
		836	SV *wdob;
		837
		838	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		839	{
		840	path = AvARRAY (rv)[1];
		841	wdob = AvARRAY (rv)[0];
		842
		843	if (SvOK (wdob))
		844	{
		845	*wd = SvAIO_WD (wdob);
		846	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		847	}
		848	else
		849	*wd = EIO_INVALID_WD;
		850	}
		851	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		852	{
		853	*wd = (aio_wd)(long)SvIVX (rv);
		854	*wdsv = SvREFCNT_inc_NN (rv);
		855	*ptr = ".";
		856	return; /* path set to "." */
		857	}
		858	else
		859	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		860	}
		861
		862	*pathsv = newSVsv (path);
		863	*ptr = SvPVbyte_nolen (*pathsv);
		864	}
		865
		866	static void ecb_noinline
		867	req_set_path1 (aio_req req, SV *path)
		868	{
		869	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		870	}
		871
		872	static void ecb_noinline
		873	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		874	{
		875	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		876
		877	switch (SvTYPE (rv))
		878	{
		879	case SVt_PVIO:
		880	case SVt_PVLV:
		881	case SVt_PVGV:
		882	req->type = type_fh;
		883	req->sv1 = newSVsv (fh_or_path);
		884	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		885	break;
		886
		887	default:
		888	req->type = type_path;
		889	req_set_path1 (req, fh_or_path);
		890	break;
		891	}
		892	}
		893
		894	XS(boot_IO__AIO) ecb_cold;
564		895
565	MODULE = IO::AIO PACKAGE = IO::AIO	896	MODULE = IO::AIO PACKAGE = IO::AIO
566		897
567	PROTOTYPES: ENABLE	898	PROTOTYPES: ENABLE
568		899
…		…
570	{	901	{
571	static const struct {	902	static const struct {
572	const char *name;	903	const char *name;
573	IV iv;	904	IV iv;
574	} *civ, const_iv[] = {	905	} *civ, const_iv[] = {
575	# define const_iv(name, value) { # name, (IV) value },	906	# define const_niv(name, value) { # name, (IV) value },
		907	# define const_iv(name) { # name, (IV) name },
576	# define const_eio(name) { # name, (IV) EIO_ ## name },	908	# define const_eio(name) { # name, (IV) EIO_ ## name },
577	const_iv (EXDEV , EXDEV)	909
		910	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		911
578	const_iv (ENOSYS , ENOSYS)	912	const_iv (ENOSYS)
		913	const_iv (EXDEV)
		914	const_iv (EBADR)
		915
579	const_iv (O_RDONLY, O_RDONLY)	916	const_iv (O_RDONLY)
580	const_iv (O_WRONLY, O_WRONLY)	917	const_iv (O_WRONLY)
		918	const_iv (O_RDWR)
581	const_iv (O_CREAT , O_CREAT)	919	const_iv (O_CREAT)
582	const_iv (O_TRUNC , O_TRUNC)	920	const_iv (O_TRUNC)
583	#ifndef _WIN32	921	const_iv (O_EXCL)
		922	const_iv (O_APPEND)
		923
		924	const_iv (O_ASYNC)
		925	const_iv (O_DIRECT)
		926	const_iv (O_NOATIME)
		927
		928	const_iv (O_CLOEXEC)
		929	const_iv (O_NOCTTY)
		930	const_iv (O_NOFOLLOW)
		931	const_iv (O_NONBLOCK)
		932	const_iv (O_EXEC)
		933	const_iv (O_SEARCH)
		934	const_iv (O_DIRECTORY)
		935	const_iv (O_DSYNC)
		936	const_iv (O_RSYNC)
		937	const_iv (O_SYNC)
		938	const_iv (O_PATH)
		939	const_iv (O_TMPFILE)
		940	const_iv (O_TTY_INIT)
		941
584	const_iv (S_IFIFO , S_IFIFO)	942	const_iv (S_IFIFO)
585	#endif	943	const_iv (S_IFCHR)
		944	const_iv (S_IFBLK)
		945	const_iv (S_IFLNK)
		946	const_iv (S_IFREG)
		947	const_iv (S_IFDIR)
		948	const_iv (S_IFWHT)
		949	const_iv (S_IFSOCK)
		950	const_iv (S_IFMT)
		951
586	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	952	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
587	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	953	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
588	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	954	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
589	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	955	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
590	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	956	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
591	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	957	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		958
		959	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		960	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		961	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		962	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		963	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		964
		965	const_iv (ST_RDONLY)
		966	const_iv (ST_NOSUID)
		967	const_iv (ST_NODEV)
		968	const_iv (ST_NOEXEC)
		969	const_iv (ST_SYNCHRONOUS)
		970	const_iv (ST_MANDLOCK)
		971	const_iv (ST_WRITE)
		972	const_iv (ST_APPEND)
		973	const_iv (ST_IMMUTABLE)
		974	const_iv (ST_NOATIME)
		975	const_iv (ST_NODIRATIME)
		976	const_iv (ST_RELATIME)
		977
		978	const_iv (PROT_NONE)
		979	const_iv (PROT_EXEC)
		980	const_iv (PROT_READ)
		981	const_iv (PROT_WRITE)
		982
		983	/*const_iv (MAP_FIXED)*/
		984	const_iv (MAP_PRIVATE)
		985	const_iv (MAP_SHARED)
		986	const_iv (MAP_ANONYMOUS)
		987
		988	/* linuxish */
		989	const_iv (MAP_HUGETLB)
		990	const_iv (MAP_LOCKED)
		991	const_iv (MAP_NORESERVE)
		992	const_iv (MAP_POPULATE)
		993	const_iv (MAP_NONBLOCK)
		994
		995	const_iv (FIEMAP_FLAG_SYNC)
		996	const_iv (FIEMAP_FLAG_XATTR)
		997	const_iv (FIEMAP_FLAGS_COMPAT)
		998	const_iv (FIEMAP_EXTENT_LAST)
		999	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1000	const_iv (FIEMAP_EXTENT_DELALLOC)
		1001	const_iv (FIEMAP_EXTENT_ENCODED)
		1002	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1003	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1004	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1005	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1006	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1007	const_iv (FIEMAP_EXTENT_MERGED)
		1008	const_iv (FIEMAP_EXTENT_SHARED)
		1009
		1010	const_iv (SPLICE_F_MOVE)
		1011	const_iv (SPLICE_F_NONBLOCK)
		1012	const_iv (SPLICE_F_MORE)
		1013	const_iv (SPLICE_F_GIFT)
		1014
		1015	const_iv (SEEK_DATA)
		1016	const_iv (SEEK_HOLE)
		1017
		1018	/* libeio constants */
		1019	const_eio (SEEK_SET)
		1020	const_eio (SEEK_CUR)
		1021	const_eio (SEEK_END)
		1022
		1023	const_eio (MCL_FUTURE)
		1024	const_eio (MCL_CURRENT)
		1025
		1026	const_eio (MS_ASYNC)
		1027	const_eio (MS_INVALIDATE)
		1028	const_eio (MS_SYNC)
		1029
		1030	const_eio (MT_MODIFY)
592		1031
593	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1032	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
594	const_eio (SYNC_FILE_RANGE_WRITE)	1033	const_eio (SYNC_FILE_RANGE_WRITE)
595	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1034	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1035
		1036	const_eio (FALLOC_FL_KEEP_SIZE)
		1037	const_eio (FALLOC_FL_PUNCH_HOLE)
		1038	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1039	const_eio (FALLOC_FL_ZERO_RANGE)
596		1040
597	const_eio (READDIR_DENTS)	1041	const_eio (READDIR_DENTS)
598	const_eio (READDIR_DIRS_FIRST)	1042	const_eio (READDIR_DIRS_FIRST)
599	const_eio (READDIR_STAT_ORDER)	1043	const_eio (READDIR_STAT_ORDER)
600	const_eio (READDIR_FOUND_UNKNOWN)	1044	const_eio (READDIR_FOUND_UNKNOWN)
…		…
608	const_eio (DT_LNK)	1052	const_eio (DT_LNK)
609	const_eio (DT_SOCK)	1053	const_eio (DT_SOCK)
610	const_eio (DT_WHT)	1054	const_eio (DT_WHT)
611	};	1055	};
612		1056
613	stash = gv_stashpv ("IO::AIO", 1);	1057	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1058	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1059	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1060	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
614		1061
615	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1062	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
616	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1063	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
617		1064
618	create_respipe ();	1065	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
619		1066
620	if (eio_init (want_poll, done_poll) < 0)	1067	reinit ();
621	croak ("IO::AIO: unable to initialise eio library");
622
623	/* atfork child called in fifo order, so before eio's handler */
624	X_THREAD_ATFORK (0, 0, atfork_child);
625	}	1068	}
626		1069
627	void	1070	void
		1071	reinit ()
		1072	PROTOTYPE:
		1073
		1074	void
628	max_poll_reqs (int nreqs)	1075	max_poll_reqs (unsigned int nreqs)
629	PROTOTYPE: $	1076	PROTOTYPE: $
630	CODE:	1077	CODE:
631	eio_set_max_poll_reqs (nreqs);	1078	eio_set_max_poll_reqs (nreqs);
632		1079
633	void	1080	void
…		…
635	PROTOTYPE: $	1082	PROTOTYPE: $
636	CODE:	1083	CODE:
637	eio_set_max_poll_time (nseconds);	1084	eio_set_max_poll_time (nseconds);
638		1085
639	void	1086	void
640	min_parallel (int nthreads)	1087	min_parallel (unsigned int nthreads)
641	PROTOTYPE: $	1088	PROTOTYPE: $
642	CODE:	1089	CODE:
643	eio_set_min_parallel (nthreads);	1090	eio_set_min_parallel (nthreads);
644		1091
645	void	1092	void
646	max_parallel (int nthreads)	1093	max_parallel (unsigned int nthreads)
647	PROTOTYPE: $	1094	PROTOTYPE: $
648	CODE:	1095	CODE:
649	eio_set_max_parallel (nthreads);	1096	eio_set_max_parallel (nthreads);
650		1097
651	void	1098	void
652	max_idle (int nthreads)	1099	max_idle (unsigned int nthreads)
653	PROTOTYPE: $	1100	PROTOTYPE: $
654	CODE:	1101	CODE:
655	eio_set_max_idle (nthreads);	1102	eio_set_max_idle (nthreads);
656		1103
657	void	1104	void
		1105	idle_timeout (unsigned int seconds)
		1106	PROTOTYPE: $
		1107	CODE:
		1108	eio_set_idle_timeout (seconds);
		1109
		1110	void
658	max_outstanding (int maxreqs)	1111	max_outstanding (unsigned int maxreqs)
659	PROTOTYPE: $	1112	PROTOTYPE: $
660	CODE:	1113	CODE:
661	max_outstanding = maxreqs;	1114	max_outstanding = maxreqs;
662		1115
663	void	1116	void
664	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1117	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
665	PROTOTYPE: $$$;$
666	PPCODE:	1118	PPCODE:
667	{	1119	{
668	dREQ;	1120	dREQ;
669		1121
		1122	req->type = EIO_WD_OPEN;
		1123	req_set_path1 (req, pathname);
		1124
		1125	REQ_SEND;
		1126	}
		1127
		1128	void
		1129	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1130	PPCODE:
		1131	{
		1132	dREQ;
		1133
670	req->type = EIO_OPEN;	1134	req->type = EIO_OPEN;
671	req->sv1 = newSVsv (pathname);	1135	req_set_path1 (req, pathname);
672	req->ptr1 = SvPVbyte_nolen (req->sv1);
673	req->int1 = flags;	1136	req->int1 = flags;
674	req->int2 = mode;	1137	req->int2 = mode;
675		1138
676	REQ_SEND;	1139	REQ_SEND;
677	}	1140	}
678		1141
679	void	1142	void
680	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1143	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
681	PROTOTYPE: $;$
682	ALIAS:	1144	ALIAS:
683	aio_fsync = EIO_FSYNC	1145	aio_fsync = EIO_FSYNC
684	aio_fdatasync = EIO_FDATASYNC	1146	aio_fdatasync = EIO_FDATASYNC
		1147	aio_syncfs = EIO_SYNCFS
685	PPCODE:	1148	PPCODE:
686	{	1149	{
687	int fd = s_fileno_croak (fh, 0);	1150	int fd = s_fileno_croak (fh, 0);
688	dREQ;	1151	dREQ;
689		1152
690	req->type = ix;	1153	req->type = ix;
691	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
692	req->int1 = fd;	1155	req->int1 = fd;
693		1156
694	REQ_SEND (req);	1157	REQ_SEND;
695	}	1158	}
696		1159
697	void	1160	void
698	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1161	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
699	PROTOTYPE: $$$$;$
700	PPCODE:	1162	PPCODE:
701	{	1163	{
702	int fd = s_fileno_croak (fh, 0);	1164	int fd = s_fileno_croak (fh, 0);
703	dREQ;	1165	dREQ;
704		1166
705	req->type = EIO_SYNC_FILE_RANGE;	1167	req->type = EIO_SYNC_FILE_RANGE;
706	req->sv1 = newSVsv (fh);	1168	req->sv1 = newSVsv (fh);
707	req->int1 = fd;	1169	req->int1 = fd;
708	req->offs = offset;	1170	req->offs = offset;
709	req->size = nbytes;	1171	req->size = nbytes;
710	req->int2 = flags;	1172	req->int2 = flags;
711		1173
712	REQ_SEND (req);	1174	REQ_SEND;
713	}	1175	}
714		1176
715	void	1177	void
716	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1178	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
717	PROTOTYPE: $;$
718	PPCODE:	1179	PPCODE:
719	{	1180	{
720	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
721	int fd = s_fileno_croak (fh, 0);	1181	int fd = s_fileno_croak (fh, 0);
722	dREQ;	1182	dREQ;
723		1183
724	if (close_pipe < 0)	1184	req->type = EIO_FALLOCATE;
		1185	req->sv1 = newSVsv (fh);
		1186	req->int1 = fd;
		1187	req->int2 = mode;
		1188	req->offs = offset;
		1189	req->size = len;
		1190
		1191	REQ_SEND;
		1192	}
		1193
		1194	void
		1195	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1196	PPCODE:
		1197	{
		1198	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1199	int fd = s_fileno_croak (fh, 0);
		1200	dREQ;
		1201
		1202	if (expect_false (close_fd < 0))
725	{	1203	{
726	int pipefd [2];	1204	int pipefd [2];
727		1205
		1206	if (
		1207	#ifdef _WIN32
		1208	_pipe (pipefd, 1, _O_BINARY) < 0
		1209	#else
728	if (pipe (pipefd) < 0	1210	pipe (pipefd) < 0
729	|| close (pipefd [1]) < 0
730	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1211	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1212	#endif
		1213	|| close (pipefd [1]) < 0
		1214	)
731	abort (); /*D*/	1215	abort (); /*D*/
732		1216
733	close_pipe = pipefd [0];	1217	close_fd = pipefd [0];
734	}	1218	}
735		1219
736	req->type = EIO_DUP2;	1220	req->type = EIO_DUP2;
737	req->int1 = close_pipe;	1221	req->int1 = close_fd;
738	req->sv2 = newSVsv (fh);	1222	req->sv2 = newSVsv (fh);
739	req->int2 = fd;	1223	req->int2 = fd;
740		1224
741	REQ_SEND (req);	1225	REQ_SEND;
742	}	1226	}
743		1227
744	void	1228	void
		1229	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1230	PPCODE:
		1231	{
		1232	int fd = s_fileno_croak (fh, 0);
		1233	dREQ;
		1234
		1235	req->type = EIO_SEEK;
		1236	req->sv1 = newSVsv (fh);
		1237	req->int1 = fd;
		1238	req->offs = SvVAL64 (offset);
		1239	req->int2 = whence;
		1240
		1241	REQ_SEND;
		1242	}
		1243
		1244	void
745	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1245	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
746	ALIAS:	1246	ALIAS:
747	aio_read = EIO_READ	1247	aio_read = EIO_READ
748	aio_write = EIO_WRITE	1248	aio_write = EIO_WRITE
749	PROTOTYPE: $$$$$;$
750	PPCODE:	1249	PPCODE:
751	{	1250	{
752	STRLEN svlen;	1251	STRLEN svlen;
753	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1252	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
754	char *svptr = SvPVbyte (data, svlen);	1253	char *svptr = SvPVbyte (data, svlen);
…		…
767	len = svlen - dataoffset;	1266	len = svlen - dataoffset;
768	}	1267	}
769	else	1268	else
770	{	1269	{
771	/* read: check type and grow scalar as necessary */	1270	/* read: check type and grow scalar as necessary */
772	SvUPGRADE (data, SVt_PV);	1271	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
773	svptr = SvGROW (data, len + dataoffset + 1);	1272	svptr = sv_grow (data, len + dataoffset + 1);
		1273	else if (SvCUR (data) < len + dataoffset)
		1274	croak ("length + dataoffset outside of scalar, and cannot grow");
774	}	1275	}
775		1276
776	{	1277	{
777	dREQ;	1278	dREQ;
778		1279
…		…
794	REQ_SEND;	1295	REQ_SEND;
795	}	1296	}
796	}	1297	}
797		1298
798	void	1299	void
799	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1300	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
800	PROTOTYPE: $$;$	1301	ALIAS:
		1302	aio_readlink = EIO_READLINK
		1303	aio_realpath = EIO_REALPATH
801	PPCODE:	1304	PPCODE:
802	{	1305	{
803	SV *data;
804	dREQ;	1306	dREQ;
805		1307
806	req->type = EIO_READLINK;	1308	req->type = ix;
807	req->sv1 = newSVsv (path);	1309	req_set_path1 (req, pathname);
808	req->ptr1 = SvPVbyte_nolen (req->sv1);
809		1310
810	REQ_SEND;	1311	REQ_SEND;
811	}	1312	}
812		1313
813	void	1314	void
814	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1315	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
815	PROTOTYPE: $$$$;$
816	PPCODE:	1316	PPCODE:
817	{	1317	{
818	int ifd = s_fileno_croak (in_fh , 0);	1318	int ifd = s_fileno_croak (in_fh , 0);
819	int ofd = s_fileno_croak (out_fh, 1);	1319	int ofd = s_fileno_croak (out_fh, 1);
820	dREQ;	1320	dREQ;
821		1321
822	req->type = EIO_SENDFILE;	1322	req->type = EIO_SENDFILE;
823	req->sv1 = newSVsv (out_fh);	1323	req->sv1 = newSVsv (out_fh);
824	req->int1 = ofd;	1324	req->int1 = ofd;
…		…
829		1329
830	REQ_SEND;	1330	REQ_SEND;
831	}	1331	}
832		1332
833	void	1333	void
834	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1334	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
835	PROTOTYPE: $$$;$
836	PPCODE:	1335	PPCODE:
837	{	1336	{
838	int fd = s_fileno_croak (fh, 0);	1337	int fd = s_fileno_croak (fh, 0);
839	dREQ;	1338	dREQ;
840		1339
841	req->type = EIO_READAHEAD;	1340	req->type = EIO_READAHEAD;
842	req->sv1 = newSVsv (fh);	1341	req->sv1 = newSVsv (fh);
843	req->int1 = fd;	1342	req->int1 = fd;
…		…
846		1345
847	REQ_SEND;	1346	REQ_SEND;
848	}	1347	}
849		1348
850	void	1349	void
851	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1350	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
852	ALIAS:	1351	ALIAS:
853	aio_stat = EIO_STAT	1352	aio_stat = EIO_STAT
854	aio_lstat = EIO_LSTAT	1353	aio_lstat = EIO_LSTAT
		1354	aio_statvfs = EIO_STATVFS
855	PPCODE:	1355	PPCODE:
856	{	1356	{
857	dREQ;	1357	dREQ;
858		1358
859	req->sv1 = newSVsv (fh_or_path);	1359	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
860
861	if (SvPOK (req->sv1))
862	{
863	req->type = ix;
864	req->ptr1 = SvPVbyte_nolen (req->sv1);
865	}
866	else
867	{
868	req->type = EIO_FSTAT;
869	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
870	}
871		1360
872	REQ_SEND;	1361	REQ_SEND;
873	}	1362	}
874		1363
		1364	UV
		1365	major (UV dev)
		1366	ALIAS:
		1367	minor = 1
		1368	CODE:
		1369	RETVAL = ix ? major (dev) : minor (dev);
		1370	OUTPUT:
		1371	RETVAL
		1372
		1373	UV
		1374	makedev (UV maj, UV min)
		1375	CODE:
		1376	RETVAL = makedev (maj, min);
		1377	OUTPUT:
		1378	RETVAL
		1379
875	void	1380	void
876	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1381	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
877	PPCODE:	1382	PPCODE:
878	{	1383	{
879	dREQ;	1384	dREQ;
880		1385
881	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1386	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
882	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1387	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
883	req->sv1 = newSVsv (fh_or_path);	1388	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
884
885	if (SvPOK (req->sv1))
886	{
887	req->type = EIO_UTIME;
888	req->ptr1 = SvPVbyte_nolen (req->sv1);
889	}
890	else
891	{
892	req->type = EIO_FUTIME;
893	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
894	}
895		1389
896	REQ_SEND;	1390	REQ_SEND;
897	}	1391	}
898		1392
899	void	1393	void
900	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1394	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
901	PPCODE:	1395	PPCODE:
902	{	1396	{
903	dREQ;	1397	dREQ;
904		1398
905	req->sv1 = newSVsv (fh_or_path);
906	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1399	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
907		1400	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
908	if (SvPOK (req->sv1))
909	{
910	req->type = EIO_TRUNCATE;
911	req->ptr1 = SvPVbyte_nolen (req->sv1);
912	}
913	else
914	{
915	req->type = EIO_FTRUNCATE;
916	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
917	}
918		1401
919	REQ_SEND;	1402	REQ_SEND;
920	}	1403	}
921		1404
922	void	1405	void
923	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1406	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
924	ALIAS:
925	aio_chmod = EIO_CHMOD
926	aio_mkdir = EIO_MKDIR
927	PPCODE:	1407	PPCODE:
928	{	1408	{
929	dREQ;	1409	dREQ;
930		1410
931	req->int2 = mode;	1411	req->int2 = mode;
932	req->sv1 = newSVsv (fh_or_path);	1412	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
933
934	if (SvPOK (req->sv1))
935	{
936	req->type = ix;
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938	}
939	else
940	{
941	req->type = EIO_FCHMOD;
942	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
943	}
944		1413
945	REQ_SEND;	1414	REQ_SEND;
946	}	1415	}
947		1416
948	void	1417	void
949	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1418	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
950	PPCODE:	1419	PPCODE:
951	{	1420	{
952	dREQ;	1421	dREQ;
953		1422
954	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1423	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
955	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1424	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
956	req->sv1 = newSVsv (fh_or_path);	1425	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
957
958	if (SvPOK (req->sv1))
959	{
960	req->type = EIO_CHOWN;
961	req->ptr1 = SvPVbyte_nolen (req->sv1);
962	}
963	else
964	{
965	req->type = EIO_FCHOWN;
966	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
967	}
968		1426
969	REQ_SEND;	1427	REQ_SEND;
970	}	1428	}
971		1429
972	void	1430	void
973	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1431	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
974	PPCODE:	1432	PPCODE:
975	{	1433	{
976	dREQ;	1434	dREQ;
977		1435
978	req->type = EIO_READDIR;	1436	req->type = EIO_READDIR;
979	req->sv1 = newSVsv (pathname);
980	req->ptr1 = SvPVbyte_nolen (req->sv1);
981	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1437	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
982		1438
983	if (flags & EIO_READDIR_DENTS)	1439	if (flags & EIO_READDIR_DENTS)
984	req->int1 |= EIO_READDIR_CUSTOM2;	1440	req->int1 |= EIO_READDIR_CUSTOM2;
985		1441
		1442	req_set_path1 (req, pathname);
		1443
986	REQ_SEND;	1444	REQ_SEND;
987	}	1445	}
988		1446
989	void	1447	void
		1448	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1449	PPCODE:
		1450	{
		1451	dREQ;
		1452
		1453	req->type = EIO_MKDIR;
		1454	req->int2 = mode;
		1455	req_set_path1 (req, pathname);
		1456
		1457	REQ_SEND;
		1458	}
		1459
		1460	void
990	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1461	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
991	ALIAS:	1462	ALIAS:
992	aio_unlink = EIO_UNLINK	1463	aio_unlink = EIO_UNLINK
993	aio_rmdir = EIO_RMDIR	1464	aio_rmdir = EIO_RMDIR
994	aio_readdir = EIO_READDIR	1465	aio_readdir = EIO_READDIR
995	PPCODE:	1466	PPCODE:
996	{	1467	{
997	dREQ;	1468	dREQ;
998		1469
999	req->type = ix;	1470	req->type = ix;
1000	req->sv1 = newSVsv (pathname);	1471	req_set_path1 (req, pathname);
1001	req->ptr1 = SvPVbyte_nolen (req->sv1);
1002		1472
1003	REQ_SEND;	1473	REQ_SEND;
1004	}	1474	}
1005		1475
1006	void	1476	void
1007	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1477	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1008	ALIAS:	1478	ALIAS:
1009	aio_link = EIO_LINK	1479	aio_link = EIO_LINK
1010	aio_symlink = EIO_SYMLINK	1480	aio_symlink = EIO_SYMLINK
1011	aio_rename = EIO_RENAME	1481	aio_rename = EIO_RENAME
1012	PPCODE:	1482	PPCODE:
1013	{	1483	{
		1484	eio_wd wd2 = 0;
1014	dREQ;	1485	dREQ;
1015		1486
1016	req->type = ix;	1487	req->type = ix;
1017	req->sv1 = newSVsv (oldpath);	1488	req_set_path1 (req, oldpath);
1018	req->ptr1 = SvPVbyte_nolen (req->sv1);	1489	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1019	req->sv2 = newSVsv (newpath);	1490	req->int3 = (long)wd2;
1020	req->ptr2 = SvPVbyte_nolen (req->sv2);
1021		1491
1022	REQ_SEND;	1492	REQ_SEND;
1023	}	1493	}
1024		1494
1025	void	1495	void
1026	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1496	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1027	PPCODE:	1497	PPCODE:
1028	{	1498	{
1029	dREQ;	1499	dREQ;
1030		1500
1031	req->type = EIO_MKNOD;	1501	req->type = EIO_MKNOD;
1032	req->sv1 = newSVsv (pathname);
1033	req->ptr1 = SvPVbyte_nolen (req->sv1);
1034	req->int2 = (mode_t)mode;	1502	req->int2 = (mode_t)mode;
1035	req->offs = dev;	1503	req->offs = dev;
		1504	req_set_path1 (req, pathname);
1036		1505
1037	REQ_SEND;	1506	REQ_SEND;
1038	}	1507	}
1039		1508
1040	void	1509	void
		1510	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
		1511	ALIAS:
		1512	aio_mtouch = EIO_MTOUCH
		1513	aio_msync = EIO_MSYNC
		1514	PPCODE:
		1515	{
		1516	STRLEN svlen;
		1517	char *svptr = SvPVbyte (data, svlen);
		1518	UV len = SvUV (length);
		1519
		1520	if (offset < 0)
		1521	offset += svlen;
		1522
		1523	if (offset < 0 || offset > svlen)
		1524	croak ("offset outside of scalar");
		1525
		1526	if (!SvOK (length) || len + offset > svlen)
		1527	len = svlen - offset;
		1528
		1529	{
		1530	dREQ;
		1531
		1532	req->type = ix;
		1533	req->sv2 = SvREFCNT_inc (data);
		1534	req->ptr2 = (char *)svptr + offset;
		1535	req->size = len;
		1536	req->int1 = flags;
		1537
		1538	REQ_SEND;
		1539	}
		1540	}
		1541
		1542	void
		1543	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1544	PPCODE:
		1545	{
		1546	STRLEN svlen;
		1547	char *svptr = SvPVbyte (data, svlen);
		1548	UV len = SvUV (length);
		1549
		1550	if (offset < 0)
		1551	offset += svlen;
		1552
		1553	if (offset < 0 || offset > svlen)
		1554	croak ("offset outside of scalar");
		1555
		1556	if (!SvOK (length) || len + offset > svlen)
		1557	len = svlen - offset;
		1558
		1559	{
		1560	dREQ;
		1561
		1562	req->type = EIO_MLOCK;
		1563	req->sv2 = SvREFCNT_inc (data);
		1564	req->ptr2 = (char *)svptr + offset;
		1565	req->size = len;
		1566
		1567	REQ_SEND;
		1568	}
		1569	}
		1570
		1571	void
		1572	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1573	PPCODE:
		1574	{
		1575	dREQ;
		1576
		1577	req->type = EIO_MLOCKALL;
		1578	req->int1 = flags;
		1579
		1580	REQ_SEND;
		1581	}
		1582
		1583	void
		1584	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1585	PPCODE:
		1586	{
		1587	int fd = s_fileno_croak (fh, 0);
		1588	dREQ;
		1589
		1590	req->type = EIO_CUSTOM;
		1591	req->sv1 = newSVsv (fh);
		1592	req->int1 = fd;
		1593
		1594	req->feed = fiemap;
		1595	#if HAVE_FIEMAP
		1596	/* keep our fingers crossed that the next two types are 64 bit */
		1597	req->offs = start;
		1598	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1599	req->int2 = flags;
		1600	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1601	#endif
		1602
		1603	REQ_SEND;
		1604	}
		1605
		1606	void
1041	aio_busy (double delay, SV *callback=&PL_sv_undef)	1607	aio_busy (double delay, SV *callback = &PL_sv_undef)
1042	PPCODE:	1608	PPCODE:
1043	{	1609	{
1044	dREQ;	1610	dREQ;
1045		1611
1046	req->type = EIO_BUSY;	1612	req->type = EIO_BUSY;
…		…
1048		1614
1049	REQ_SEND;	1615	REQ_SEND;
1050	}	1616	}
1051		1617
1052	void	1618	void
1053	aio_group (SV *callback=&PL_sv_undef)	1619	aio_group (SV *callback = &PL_sv_undef)
1054	PROTOTYPE: ;$
1055	PPCODE:	1620	PPCODE:
1056	{	1621	{
1057	dREQ;	1622	dREQ;
1058		1623
1059	req->type = EIO_GROUP;	1624	req->type = EIO_GROUP;
1060		1625
		1626	PUTBACK;
1061	req_submit (req);	1627	req_submit (req);
		1628	SPAGAIN;
		1629
1062	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1630	XPUSHs (req_sv (req, aio_grp_stash));
1063	}	1631	}
1064		1632
1065	void	1633	void
1066	aio_nop (SV *callback=&PL_sv_undef)	1634	aio_nop (SV *callback = &PL_sv_undef)
1067	ALIAS:	1635	ALIAS:
1068	aio_nop = EIO_NOP	1636	aio_nop = EIO_NOP
1069	aio_sync = EIO_SYNC	1637	aio_sync = EIO_SYNC
1070	PPCODE:	1638	PPCODE:
1071	{	1639	{
…		…
1075		1643
1076	REQ_SEND;	1644	REQ_SEND;
1077	}	1645	}
1078		1646
1079	int	1647	int
1080	aioreq_pri (int pri = 0)	1648	aioreq_pri (int pri = NO_INIT)
1081	PROTOTYPE: ;$
1082	CODE:	1649	CODE:
1083	RETVAL = next_pri;	1650	RETVAL = next_pri;
1084	if (items > 0)	1651	if (items > 0)
1085	{	1652	{
1086	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1653	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1098	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1665	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1099	next_pri = nice;	1666	next_pri = nice;
1100		1667
1101	void	1668	void
1102	flush ()	1669	flush ()
1103	PROTOTYPE:
1104	CODE:	1670	CODE:
1105	while (eio_nreqs ())	1671	while (eio_nreqs ())
1106	{	1672	{
1107	poll_wait ();	1673	poll_wait ();
1108	poll_cb ();	1674	poll_cb ();
1109	}	1675	}
1110		1676
1111	int	1677	int
1112	poll()	1678	poll ()
1113	PROTOTYPE:
1114	CODE:	1679	CODE:
1115	poll_wait ();	1680	poll_wait ();
1116	RETVAL = poll_cb ();	1681	RETVAL = poll_cb ();
1117	OUTPUT:	1682	OUTPUT:
1118	RETVAL	1683	RETVAL
1119		1684
1120	int	1685	int
1121	poll_fileno()	1686	poll_fileno ()
1122	PROTOTYPE:
1123	CODE:	1687	CODE:
1124	RETVAL = respipe [0];	1688	RETVAL = s_epipe_fd (&respipe);
1125	OUTPUT:	1689	OUTPUT:
1126	RETVAL	1690	RETVAL
1127		1691
1128	int	1692	int
1129	poll_cb(...)	1693	poll_cb (...)
1130	PROTOTYPE:	1694	PROTOTYPE:
1131	CODE:	1695	CODE:
1132	RETVAL = poll_cb ();	1696	RETVAL = poll_cb ();
1133	OUTPUT:	1697	OUTPUT:
1134	RETVAL	1698	RETVAL
1135		1699
1136	void	1700	void
1137	poll_wait()	1701	poll_wait ()
1138	PROTOTYPE:
1139	CODE:	1702	CODE:
1140	poll_wait ();	1703	poll_wait ();
1141		1704
1142	int	1705	int
1143	nreqs()	1706	nreqs ()
1144	PROTOTYPE:
1145	CODE:	1707	CODE:
1146	RETVAL = eio_nreqs ();	1708	RETVAL = eio_nreqs ();
1147	OUTPUT:	1709	OUTPUT:
1148	RETVAL	1710	RETVAL
1149		1711
1150	int	1712	int
1151	nready()	1713	nready ()
1152	PROTOTYPE:
1153	CODE:	1714	CODE:
1154	RETVAL = eio_nready ();	1715	RETVAL = eio_nready ();
1155	OUTPUT:	1716	OUTPUT:
1156	RETVAL	1717	RETVAL
1157		1718
1158	int	1719	int
1159	npending()	1720	npending ()
1160	PROTOTYPE:
1161	CODE:	1721	CODE:
1162	RETVAL = eio_npending ();	1722	RETVAL = eio_npending ();
1163	OUTPUT:	1723	OUTPUT:
1164	RETVAL	1724	RETVAL
1165		1725
1166	int	1726	int
1167	nthreads()	1727	nthreads ()
1168	PROTOTYPE:
1169	CODE:	1728	CODE:
1170	RETVAL = eio_nthreads ();	1729	RETVAL = eio_nthreads ();
1171	OUTPUT:	1730	OUTPUT:
1172	RETVAL	1731	RETVAL
1173		1732
1174	int	1733	int
1175	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1734	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1176	PROTOTYPE: $$$$
1177	CODE:	1735	CODE:
1178	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1179	RETVAL = posix_fadvise (fh, offset, length, advice);	1736	RETVAL = posix_fadvise (fh, offset, length, advice);
1180	#else
1181	RETVAL = errno = ENOSYS;
1182	#endif
1183	OUTPUT:	1737	OUTPUT:
1184	RETVAL	1738	RETVAL
1185		1739
1186	ssize_t	1740	IV
1187	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1741	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1188	PROTOTYPE: $$$$
1189	CODE:	1742	CODE:
1190	eio_sendfile_sync (ofh, ifh, offset, count);	1743	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1744	OUTPUT:
		1745	RETVAL
		1746
		1747	void
		1748	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1749	PPCODE:
		1750	sv_unmagic (scalar, MMAP_MAGIC);
		1751	{
		1752	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1753	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1754	if (addr == (void *)-1)
		1755	XSRETURN_NO;
		1756
		1757	sv_force_normal (scalar);
		1758
		1759	/* we store the length in mg_obj, as namlen is I32 :/ */
		1760	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1761	->mg_obj = (SV *)length;
		1762
		1763	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1764
		1765	if (!(prot & PROT_WRITE))
		1766	SvREADONLY_on (scalar);
		1767
		1768	if (SvLEN (scalar))
		1769	Safefree (SvPVX (scalar));
		1770
		1771	SvPVX (scalar) = (char *)addr;
		1772	SvCUR_set (scalar, length);
		1773	SvLEN_set (scalar, 0);
		1774	SvPOK_only (scalar);
		1775
		1776	XSRETURN_YES;
		1777	}
		1778
		1779	void
		1780	munmap (SV *scalar)
		1781	CODE:
		1782	sv_unmagic (scalar, MMAP_MAGIC);
		1783
		1784	int
		1785	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1786	ALIAS:
		1787	mprotect = 1
		1788	CODE:
		1789	{
		1790	STRLEN svlen;
		1791	void *addr = SvPVbyte (scalar, svlen);
		1792	STRLEN len = SvUV (length);
		1793
		1794	if (offset < 0)
		1795	offset += svlen;
		1796
		1797	if (offset < 0 || offset > svlen)
		1798	croak ("offset outside of scalar");
		1799
		1800	if (!SvOK (length) || len + offset > svlen)
		1801	len = svlen - offset;
		1802
		1803	addr = (void *)(((intptr_t)addr) + offset);
		1804	eio_page_align (&addr, &len);
		1805
		1806	switch (ix)
		1807	{
		1808	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1809	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1810	}
		1811	}
		1812	OUTPUT:
		1813	RETVAL
		1814
		1815	int
		1816	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1817	CODE:
		1818	{
		1819	STRLEN svlen;
		1820	void *addr = SvPVbyte (scalar, svlen);
		1821	size_t len = SvUV (length);
		1822
		1823	if (offset < 0)
		1824	offset += svlen;
		1825
		1826	if (offset < 0 || offset > svlen)
		1827	croak ("offset outside of scalar");
		1828
		1829	if (!SvOK (length) || len + offset > svlen)
		1830	len = svlen - offset;
		1831
		1832	addr = (void *)(((intptr_t)addr) + offset);
		1833	eio_page_align (&addr, &len);
		1834	#if _POSIX_MEMLOCK_RANGE
		1835	RETVAL = munlock (addr, len);
		1836	#else
		1837	RETVAL = EIO_ENOSYS ();
		1838	#endif
		1839	}
		1840	OUTPUT:
		1841	RETVAL
		1842
		1843	int
		1844	munlockall ()
		1845	CODE:
		1846	#if _POSIX_MEMLOCK
		1847	munlockall ();
		1848	#else
		1849	RETVAL = EIO_ENOSYS ();
		1850	#endif
		1851	OUTPUT:
		1852	RETVAL
		1853
		1854	int
		1855	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1856	CODE:
		1857	{
		1858	#if HAVE_LINUX_SPLICE
		1859	loff_t off_in_, off_out_;
		1860	RETVAL = splice (
		1861	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1862	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1863	length, flags
		1864	);
		1865	#else
		1866	RETVAL = EIO_ENOSYS ();
		1867	#endif
		1868	}
		1869	OUTPUT:
		1870	RETVAL
		1871
		1872	int
		1873	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1874	CODE:
		1875	#if HAVE_LINUX_SPLICE
		1876	RETVAL = tee (rfh, wfh, length, flags);
		1877	#else
		1878	RETVAL = EIO_ENOSYS ();
		1879	#endif
		1880	OUTPUT:
		1881	RETVAL
		1882
		1883	int
		1884	pipesize (aio_rfd rfh, int new_size = -1)
		1885	PROTOTYPE: $;$
		1886	CODE:
		1887	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1888	if (new_size >= 0)
		1889	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1890	else
		1891	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1892	#else
		1893	errno = ENOSYS;
		1894	RETVAL = -1;
		1895	#endif
		1896	OUTPUT:
		1897	RETVAL
		1898
		1899	void
		1900	pipe2 (int flags = 0)
		1901	PROTOTYPE: ;$
		1902	PPCODE:
		1903	{
		1904	int fd[2];
		1905	int res;
		1906
		1907	if (flags)
		1908	#if HAVE_PIPE2
		1909	res = pipe2 (fd, flags);
		1910	#else
		1911	res = (errno = ENOSYS, -1);
		1912	#endif
		1913	else
		1914	res = pipe (fd);
		1915
		1916	if (!res)
		1917	{
		1918	EXTEND (SP, 2);
		1919	PUSHs (newmortalFH (fd[0], O_RDONLY));
		1920	PUSHs (newmortalFH (fd[1], O_WRONLY));
		1921	}
		1922	}
1191		1923
1192	void _on_next_submit (SV *cb)	1924	void _on_next_submit (SV *cb)
1193	CODE:	1925	CODE:
1194	SvREFCNT_dec (on_next_submit);	1926	SvREFCNT_dec (on_next_submit);
1195	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1927	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1196		1928
1197	PROTOTYPES: DISABLE	1929	PROTOTYPES: DISABLE
1198		1930
		1931	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1932
		1933	BOOT:
		1934	{
		1935	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1936	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1937	}
		1938
		1939	void
		1940	DESTROY (SV *self)
		1941	CODE:
		1942	{
		1943	aio_wd wd = SvAIO_WD (self);
		1944	#if HAVE_AT
		1945	{
		1946	SV *callback = &PL_sv_undef;
		1947	dREQ; /* clobbers next_pri :/ */
		1948	next_pri = req->pri; /* restore next_pri */
		1949	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1950	req->type = EIO_WD_CLOSE;
		1951	req->wd = wd;
		1952	REQ_SEND;
		1953	}
		1954	#else
		1955	eio_wd_close_sync (wd);
		1956	#endif
		1957	}
		1958
1199	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1959	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1200		1960
1201	void	1961	void
1202	cancel (aio_req_ornot req)	1962	cancel (aio_req_ornot req)
1203	CODE:	1963	CODE:
1204	eio_cancel (req);	1964	eio_cancel (req);
1205		1965
1206	void	1966	void
1207	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1967	cb (aio_req_ornot req, SV *callback = NO_INIT)
1208	PPCODE:	1968	PPCODE:
1209	{	1969	{
1210	if (GIMME_V != G_VOID)	1970	if (GIMME_V != G_VOID)
1211	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1971	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1212		1972
1213	if (items > 1)	1973	if (items > 1)
1214	{	1974	{
1215	SV *cb_cv =get_cb (callback);	1975	SV *cb_cv = get_cb (callback);
1216		1976
1217	SvREFCNT_dec (req->callback);	1977	SvREFCNT_dec (req->callback);
1218	req->callback = SvREFCNT_inc (cb_cv);	1978	req->callback = SvREFCNT_inc (cb_cv);
1219	}	1979	}
1220	}	1980	}
…		…
1277	limit (aio_req grp, int limit)	2037	limit (aio_req grp, int limit)
1278	CODE:	2038	CODE:
1279	eio_grp_limit (grp, limit);	2039	eio_grp_limit (grp, limit);
1280		2040
1281	void	2041	void
1282	feed (aio_req grp, SV *callback=&PL_sv_undef)	2042	feed (aio_req grp, SV *callback = &PL_sv_undef)
1283	CODE:	2043	CODE:
1284	{	2044	{
1285	SvREFCNT_dec (grp->sv2);	2045	SvREFCNT_dec (grp->sv2);
1286	grp->sv2 = newSVsv (callback);	2046	grp->sv2 = newSVsv (callback);
1287	grp->feed = aio_grp_feed;	2047	grp->feed = aio_grp_feed;

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