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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.130 by root, Thu Oct 2 11:35:03 2008 UTC vs.
Revision 1.218 by root, Fri Jul 27 17:54:40 2012 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#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
18	/* perl namespace pollution */	33	/* perl namespace pollution */
19	#undef VERSION	34	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		35
70	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	38	#undef readdir
73	#undef opendir	39	#undef opendir
74	#undef closedir	40	#undef closedir
75		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
76	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
77		78
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	79	#else
82	# define SvVAL64 SvNV	80
		81	#include <sys/time.h>
		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
83	#endif	89	#endif
84		90
85	/*****************************************************************************/	91	/*****************************************************************************/
86		92
87	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	99	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	100	#define expect_true(expr) expect ((expr) != 0, 1)
95		101
96	/*****************************************************************************/	102	/*****************************************************************************/
97		103
98	static HV *stash;
99	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
		105	typedef int aio_rfd; /* read file desriptor */
		106	typedef int aio_wfd; /* write file descriptor */
100		107
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		109
104	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
105	SV *callback; \	111	SV *callback; \
106	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
107	STRLEN stroffset; \	114	STRLEN stroffset; \
108	SV *self;	115	SV *self;
109		116
110	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
111		118
		119	#include "libeio/config.h"
112	#include "libeio/eio.h"	120	#include "libeio/eio.h"
113		121
114	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
116	static void aio_grp_feed (eio_req *grp);
117	#define EIO_FEED(req) aio_grp_feed (req)
118	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
119	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
		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	#ifndef PAGESIZE
		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	int count = req->int3;
		171
		172	/* heuristic: first try with 72 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (!fiemap->fm_mapped_extents)
		200	break; /* if file has no segments, we are done */
		201
		202	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		203	break; /* autosizing successful, we are done */
		204
		205	fiemap->fm_flags = req->int2;
		206	fiemap->fm_extent_count = 0;
		207
		208	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		209	return;
		210
		211	count = fiemap->fm_mapped_extents;
		212
		213	free (fiemap);
		214	}
		215
		216	req->result = 0;
		217
		218	#else
		219	errno = ENOSYS;
		220	#endif
		221	}
		222
		223	/*****************************************************************************/
120		224
121	enum {	225	enum {
122	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	226	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
123	};	227	};
124		228
125	#include "libeio/eio.c"
126
127	typedef eio_req *aio_req;	229	typedef eio_req *aio_req;
128	typedef eio_req *aio_req_ornot;	230	typedef eio_req *aio_req_ornot;
		231	typedef eio_wd aio_wd;
129		232
130	static SV *on_next_submit;	233	static SV *on_next_submit;
131	static int next_pri = EIO_PRI_DEFAULT;	234	static int next_pri = EIO_PRI_DEFAULT;
132	static int max_outstanding;	235	static int max_outstanding;
133		236
134	static int respipe_osf [2], respipe [2] = { -1, -1 };	237	static s_epipe respipe;
135		238
136	static void req_destroy (aio_req req);	239	static void req_destroy (aio_req req);
137	static void req_cancel (aio_req req);	240	static void req_cancel (aio_req req);
138		241
139	static void want_poll (void)	242	static void
		243	want_poll (void)
140	{	244	{
141	/* write a dummy byte to the pipe so fh becomes ready */	245	/* write a dummy byte to the pipe so fh becomes ready */
142	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	246	s_epipe_signal (&respipe);
143	}	247	}
144		248
145	static void done_poll (void)	249	static void
		250	done_poll (void)
146	{	251	{
147	/* read any signals sent by the worker threads */	252	/* read any signals sent by the worker threads */
148	char buf [4];	253	s_epipe_drain (&respipe);
149	while (respipe_read (respipe [0], buf, 4) == 4)
150	;
151	}	254	}
152		255
153	/* must be called at most once */	256	/* must be called at most once */
154	static SV *req_sv (aio_req req, const char *klass)	257	static SV *
		258	req_sv (aio_req req, HV *stash)
155	{	259	{
156	if (!req->self)	260	if (!req->self)
157	{	261	{
158	req->self = (SV *)newHV ();	262	req->self = (SV *)newHV ();
159	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	263	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
160	}	264	}
161		265
162	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	266	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
163	}	267	}
164		268
165	static aio_req SvAIO_REQ (SV *sv)	269	static SV *
		270	newSVaio_wd (aio_wd wd)
		271	{
		272	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		273	}
		274
		275	static aio_req
		276	SvAIO_REQ (SV *sv)
166	{	277	{
167	MAGIC *mg;	278	MAGIC *mg;
168		279
169	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	280	if (!SvROK (sv)
		281	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		282	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		283	&& SvSTASH (SvRV (sv)) != aio_req_stash
		284	&& !sv_derived_from (sv, "IO::AIO::REQ")))
170	croak ("object of class " AIO_REQ_KLASS " expected");	285	croak ("object of class IO::AIO::REQ expected");
171		286
172	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	287	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
173		288
174	return mg ? (aio_req)mg->mg_ptr : 0;	289	return mg ? (aio_req)mg->mg_ptr : 0;
175	}	290	}
176		291
		292	static aio_wd
		293	SvAIO_WD (SV *sv)
		294	{
		295	if (!SvROK (sv)
		296	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		297	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		298	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		299
		300	return (aio_wd)(long)SvIVX (SvRV (sv));
		301	}
		302
		303	static void
177	static void aio_grp_feed (aio_req grp)	304	aio_grp_feed (aio_req grp)
178	{	305	{
179	if (grp->sv2 && SvOK (grp->sv2))	306	if (grp->sv2 && SvOK (grp->sv2))
180	{	307	{
181	dSP;	308	dSP;
182		309
183	ENTER;	310	ENTER;
184	SAVETMPS;	311	SAVETMPS;
185	PUSHMARK (SP);	312	PUSHMARK (SP);
186	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	313	XPUSHs (req_sv (grp, aio_grp_stash));
187	PUTBACK;	314	PUTBACK;
188	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	315	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
189	SPAGAIN;	316	SPAGAIN;
190	FREETMPS;	317	FREETMPS;
191	LEAVE;	318	LEAVE;
192	}	319	}
193	}	320	}
194		321
		322	static void
195	static void req_submit (eio_req *req)	323	req_submit (eio_req *req)
196	{	324	{
197	eio_submit (req);	325	eio_submit (req);
198		326
199	if (expect_false (on_next_submit))	327	if (expect_false (on_next_submit))
200	{	328	{
…		…
207	PUTBACK;	335	PUTBACK;
208	call_sv (cb, G_DISCARD | G_EVAL);	336	call_sv (cb, G_DISCARD | G_EVAL);
209	}	337	}
210	}	338	}
211		339
		340	static int
212	static int req_invoke (eio_req *req)	341	req_invoke (eio_req *req)
213	{	342	{
214	dSP;
215
216	if (req->flags & FLAG_SV2_RO_OFF)	343	if (req->flags & FLAG_SV2_RO_OFF)
217	SvREADONLY_off (req->sv2);	344	SvREADONLY_off (req->sv2);
218		345
219	if (!EIO_CANCELLED (req) && req->callback)	346	if (!EIO_CANCELLED (req) && req->callback)
220	{	347	{
		348	dSP;
		349	static SV *sv_result_cache; /* caches the result integer SV */
		350	SV *sv_result;
		351
221	ENTER;	352	ENTER;
222	SAVETMPS;	353	SAVETMPS;
223	PUSHMARK (SP);	354	PUSHMARK (SP);
224	EXTEND (SP, 1);	355	EXTEND (SP, 1);
225		356
		357	/* do not recreate the result IV from scratch each time */
		358	if (expect_true (sv_result_cache))
		359	{
		360	sv_result = sv_result_cache; sv_result_cache = 0;
		361	SvIV_set (sv_result, req->result);
		362	SvIOK_only (sv_result);
		363	}
		364	else
		365	{
		366	sv_result = newSViv (req->result);
		367	SvREADONLY_on (sv_result);
		368	}
		369
226	switch (req->type)	370	switch (req->type)
227	{	371	{
		372	case EIO_WD_OPEN:
		373	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		374	break;
		375
228	case EIO_READDIR:	376	case EIO_READDIR:
229	{	377	{
230	SV *rv = &PL_sv_undef;	378	SV *rv = &PL_sv_undef;
231		379
232	if (req->result >= 0)	380	if (req->result >= 0)
233	{	381	{
234	int i;	382	int i;
235	char *buf = req->ptr2;	383	char *names = (char *)req->ptr2;
		384	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
236	AV *av = newAV ();	385	AV *av = newAV ();
237		386
238	av_extend (av, req->result - 1);	387	av_extend (av, req->result - 1);
239		388
240	for (i = 0; i < req->result; ++i)	389	for (i = 0; i < req->result; ++i)
241	{	390	{
242	SV *sv = newSVpv (buf, 0);	391	if (req->int1 & EIO_READDIR_DENTS)
		392	{
		393	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
243		394
		395	if (req->int1 & EIO_READDIR_CUSTOM2)
		396	{
		397	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		398	AV *avent = newAV ();
		399
		400	av_extend (avent, 2);
		401
		402	if (!sv_type [ent->type])
		403	{
		404	sv_type [ent->type] = newSViv (ent->type);
		405	SvREADONLY_on (sv_type [ent->type]);
		406	}
		407
		408	av_store (avent, 0, namesv);
		409	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		410	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		411
		412	av_store (av, i, newRV_noinc ((SV *)avent));
		413	}
		414	else
244	av_store (av, i, sv);	415	av_store (av, i, namesv);
		416
		417	++ent;
		418	}
		419	else
		420	{
		421	SV *name = newSVpv (names, 0);
		422	av_store (av, i, name);
245	buf += SvCUR (sv) + 1;	423	names += SvCUR (name) + 1;
		424	}
246	}	425	}
247		426
248	rv = sv_2mortal (newRV_noinc ((SV *)av));	427	rv = sv_2mortal (newRV_noinc ((SV *)av));
249	}	428	}
250		429
251	PUSHs (rv);	430	PUSHs (rv);
		431
		432	if (req->int1 & EIO_READDIR_CUSTOM1)
		433	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
252	}	434	}
253	break;	435	break;
254		436
255	case EIO_OPEN:	437	case EIO_OPEN:
256	{	438	{
…		…
262	GV *gv = (GV *)sv_newmortal ();	444	GV *gv = (GV *)sv_newmortal ();
263	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	445	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
264	char sym [64];	446	char sym [64];
265	int symlen;	447	int symlen;
266		448
267	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	449	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
268	gv_init (gv, stash, sym, symlen, 0);	450	gv_init (gv, aio_stash, sym, symlen, 0);
269		451
270	symlen = snprintf (	452	symlen = snprintf (
271	sym,	453	sym,
272	sizeof (sym),	454	sizeof (sym),
273	"%s&=%d",	455	"%s&=%d",
274	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	456	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
275	req->result	457	(int)req->result
276	);	458	);
277		459
278	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	460	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
279	fh = (SV *)gv;	461	fh = (SV *)gv;
280	}	462	}
281		463
282	PUSHs (fh);	464	PUSHs (fh);
283	}	465	}
		466	break;
		467
		468	case EIO_STATVFS:
		469	case EIO_FSTATVFS:
		470	{
		471	SV *rv = &PL_sv_undef;
		472
		473	#ifndef _WIN32
		474	if (req->result >= 0)
		475	{
		476	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		477	HV *hv = newHV ();
		478
		479	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		480
		481	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		482	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		483	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		484	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		485	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		486	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		487	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		488	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		489	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		490	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		491	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		492	}
		493	#endif
		494
		495	PUSHs (rv);
		496	}
		497
284	break;	498	break;
285		499
286	case EIO_GROUP:	500	case EIO_GROUP:
287	req->int1 = 2; /* mark group as finished */	501	req->int1 = 2; /* mark group as finished */
288		502
…		…
300	case EIO_NOP:	514	case EIO_NOP:
301	case EIO_BUSY:	515	case EIO_BUSY:
302	break;	516	break;
303		517
304	case EIO_READLINK:	518	case EIO_READLINK:
		519	case EIO_REALPATH:
305	if (req->result > 0)	520	if (req->result > 0)
306	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	521	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
307	break;	522	break;
308		523
309	case EIO_STAT:	524	case EIO_STAT:
310	case EIO_LSTAT:	525	case EIO_LSTAT:
311	case EIO_FSTAT:	526	case EIO_FSTAT:
312	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	527	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		528
313	PL_laststatval = req->result;	529	if (!(PL_laststatval = req->result))
		530	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
314	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	531	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
315	PUSHs (sv_2mortal (newSViv (req->result)));	532
		533	PUSHs (sv_result);
316	break;	534	break;
317		535
		536	case EIO_SEEK:
		537	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		538	break;
		539
318	case EIO_READ:	540	case EIO_READ:
		541	{
319	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	542	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
320	*SvEND (req->sv2) = 0;	543	*SvEND (req->sv2) = 0;
321	PUSHs (sv_2mortal (newSViv (req->result)));	544	SvPOK_only (req->sv2);
		545	SvSETMAGIC (req->sv2);
		546	PUSHs (sv_result);
		547	}
322	break;	548	break;
323		549
324	case EIO_DUP2:	550	case EIO_CUSTOM:
		551	if (req->feed == fiemap)
		552	{
		553	#if HAVE_FIEMAP
		554	if (!req->result)
		555	{
		556	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		557
		558	if (fiemap->fm_extent_count)
		559	{
		560	AV *av = newAV ();
		561	int i;
		562
		563	while (fiemap->fm_mapped_extents)
		564	{
		565	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		566	AV *ext_av = newAV ();
		567
		568	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		569	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		570	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		571	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		572
		573	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		574	}
		575
		576	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		577	}
		578	else
		579	{
		580	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		581	PUSHs (sv_result);
		582	}
		583	}
		584	#endif
		585	}
		586	else
		587	PUSHs (sv_result);
		588	break;
		589
		590	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
325	if (req->result > 0)	591	if (req->result > 0)
326	req->result = 0;	592	SvIV_set (sv_result, 0);
327	/* FALLTHROUGH */	593	/* FALLTHROUGH */
328		594
329	default:	595	default:
330	PUSHs (sv_2mortal (newSViv (req->result)));	596	PUSHs (sv_result);
331	break;	597	break;
332	}	598	}
333		599
334	errno = req->errorno;	600	errno = req->errorno;
335		601
336	PUTBACK;	602	PUTBACK;
337	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	603	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
338	SPAGAIN;	604	SPAGAIN;
339		605
		606	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		607	SvREFCNT_dec (sv_result);
		608	else
		609	sv_result_cache = sv_result;
		610
340	FREETMPS;	611	FREETMPS;
341	LEAVE;	612	LEAVE;
342		613
343	PUTBACK;	614	PUTBACK;
344	}	615	}
345		616
346	return !!SvTRUE (ERRSV);	617	return !!SvTRUE (ERRSV);
347	}	618	}
348		619
		620	static void
349	static void req_destroy (aio_req req)	621	req_destroy (aio_req req)
350	{	622	{
351	if (req->self)	623	if (req->self)
352	{	624	{
353	sv_unmagic (req->self, PERL_MAGIC_ext);	625	sv_unmagic (req->self, PERL_MAGIC_ext);
354	SvREFCNT_dec (req->self);	626	SvREFCNT_dec (req->self);
355	}	627	}
356		628
357	SvREFCNT_dec (req->sv1);	629	SvREFCNT_dec (req->sv1);
358	SvREFCNT_dec (req->sv2);	630	SvREFCNT_dec (req->sv2);
		631	SvREFCNT_dec (req->sv3);
		632	SvREFCNT_dec (req->sv4);
359	SvREFCNT_dec (req->callback);	633	SvREFCNT_dec (req->callback);
360		634
361	Safefree (req);	635	free (req);
362	}	636	}
363		637
		638	static void
364	static void req_cancel_subs (aio_req grp)	639	req_cancel_subs (aio_req grp)
365	{	640	{
366	aio_req sub;
367
368	if (grp->type != EIO_GROUP)	641	if (grp->type != EIO_GROUP)
369	return;	642	return;
370		643
371	SvREFCNT_dec (grp->sv2);	644	SvREFCNT_dec (grp->sv2);
372	grp->sv2 = 0;	645	grp->sv2 = 0;
373		646
374	eio_grp_cancel (grp);	647	eio_grp_cancel (grp);
375	}	648	}
376		649
377	#ifdef USE_SOCKETS_AS_HANDLES	650	static void ecb_cold
378	# define TO_SOCKET(x) (win32_get_osfhandle (x))	651	create_respipe (void)
379	#else	652	{
380	# define TO_SOCKET(x) (x)	653	if (s_epipe_renew (&respipe))
381	#endif	654	croak ("IO::AIO: unable to initialize result pipe");
		655	}
382		656
383	static void	657	static void
384	create_respipe (void)	658	poll_wait (void)
385	{	659	{
386	int old_readfd = respipe [0];
387
388	if (respipe [1] >= 0)
389	respipe_close (TO_SOCKET (respipe [1]));
390
391	#ifdef _WIN32
392	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
393	#else
394	if (pipe (respipe))
395	#endif
396	croak ("unable to initialize result pipe");
397
398	if (old_readfd >= 0)
399	{
400	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
401	croak ("unable to initialize result pipe(2)");
402
403	respipe_close (respipe [0]);
404	respipe [0] = old_readfd;
405	}
406
407	#ifdef _WIN32
408	int arg = 1;
409	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
410	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
411	#else
412	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
413	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
414	#endif
415	croak ("unable to initialize result pipe(3)");
416
417	respipe_osf [0] = TO_SOCKET (respipe [0]);
418	respipe_osf [1] = TO_SOCKET (respipe [1]);
419	}
420
421	static void poll_wait (void)
422	{
423	fd_set rfd;
424
425	while (eio_nreqs ())	660	while (eio_nreqs ())
426	{	661	{
427	int size;	662	int size;
428		663
429	X_LOCK (reslock);	664	X_LOCK (reslock);
…		…
433	if (size)	668	if (size)
434	return;	669	return;
435		670
436	etp_maybe_start_thread ();	671	etp_maybe_start_thread ();
437		672
438	FD_ZERO (&rfd);	673	s_epipe_wait (&respipe);
439	FD_SET (respipe [0], &rfd);
440
441	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
442	}	674	}
443	}	675	}
444		676
445	static int poll_cb (void)	677	static int
		678	poll_cb (void)
446	{	679	{
447	for (;;)	680	for (;;)
448	{	681	{
449	int res = eio_poll ();	682	int res = eio_poll ();
450		683
…		…
456		689
457	poll_wait ();	690	poll_wait ();
458	}	691	}
459	}	692	}
460		693
461	static void atfork_child (void)	694	static void ecb_cold
		695	reinit (void)
462	{	696	{
463	create_respipe ();	697	create_respipe ();
		698
		699	if (eio_init (want_poll, done_poll) < 0)
		700	croak ("IO::AIO: unable to initialise eio library");
464	}	701	}
		702
		703	/*****************************************************************************/
		704
		705	#if !_POSIX_MAPPED_FILES
		706	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		707	# define munmap(addr,length) EIO_ENOSYS ()
		708	#endif
		709
		710	#if !_POSIX_MEMORY_PROTECTION
		711	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		712	# define PROT_NONE 0
		713	# define PROT_WRITE 0
		714	# define MAP_PRIVATE 0
		715	# define MAP_SHARED 0
		716	# define MAP_FIXED 0
		717	#endif
		718
		719	#define MMAP_MAGIC PERL_MAGIC_ext
		720
		721	static int ecb_cold
		722	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		723	{
		724	int old_errno = errno;
		725	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		726	errno = old_errno;
		727
		728	mg->mg_obj = 0; /* just in case */
		729
		730	SvREADONLY_off (sv);
		731
		732	if (SvPVX (sv) != mg->mg_ptr)
		733	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		734
		735	SvCUR_set (sv, 0);
		736	SvPVX (sv) = 0;
		737	SvOK_off (sv);
		738
		739	return 0;
		740	}
		741
		742	static MGVTBL mmap_vtbl = {
		743	0, 0, 0, 0, mmap_free
		744	};
		745
		746	/*****************************************************************************/
465		747
466	static SV *	748	static SV *
467	get_cb (SV *cb_sv)	749	get_cb (SV *cb_sv)
468	{	750	{
469	HV *st;	751	SvGETMAGIC (cb_sv);
470	GV *gvp;	752	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		753	}
		754
		755	static aio_req ecb_noinline
		756	dreq (SV *callback)
		757	{
471	CV *cv;	758	SV *cb_cv;
		759	aio_req req;
		760	int req_pri = next_pri;
		761	next_pri = EIO_PRI_DEFAULT;
472		762
473	if (!SvOK (cb_sv))	763	cb_cv = get_cb (callback);
		764
		765	req = calloc (sizeof (*req), 1);
		766	if (!req)
		767	croak ("out of memory during eio_req allocation");
		768
		769	req->callback = SvREFCNT_inc (cb_cv);
		770	req->pri = req_pri;
		771
474	return 0;	772	return req;
475
476	cv = sv_2cv (cb_sv, &st, &gvp, 0);
477
478	if (!cv)
479	croak ("IO::AIO callback must be undef or a CODE reference");
480
481	return (SV *)cv;
482	}	773	}
483		774
484	#define dREQ \	775	#define dREQ \
485	SV *cb_cv; \	776	aio_req req = dreq (callback); \
486	aio_req req; \
487	int req_pri = next_pri; \
488	next_pri = EIO_PRI_DEFAULT; \
489	\
490	cb_cv = get_cb (callback); \
491	\
492	Newz (0, req, 1, eio_req); \
493	if (!req) \
494	croak ("out of memory during eio_req allocation"); \
495	\
496	req->callback = SvREFCNT_inc (cb_cv); \
497	req->pri = req_pri
498		777
499	#define REQ_SEND \	778	#define REQ_SEND \
500	PUTBACK; \	779	PUTBACK; \
501	req_submit (req); \	780	req_submit (req); \
502	SPAGAIN; \	781	SPAGAIN; \
503	\	782	\
504	if (GIMME_V != G_VOID) \	783	if (GIMME_V != G_VOID) \
505	XPUSHs (req_sv (req, AIO_REQ_KLASS));	784	XPUSHs (req_sv (req, aio_req_stash));
506		785
		786	ecb_inline void
		787	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		788	{
		789	if (expect_false (SvROK (path)))
		790	{
		791	SV *rv = SvRV (path);
		792	SV *wdob;
		793
		794	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		795	{
		796	path = AvARRAY (rv)[1];
		797	wdob = AvARRAY (rv)[0];
		798
		799	if (SvOK (wdob))
		800	{
		801	*wd = SvAIO_WD (wdob);
		802	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		803	}
		804	else
		805	*wd = EIO_INVALID_WD;
		806	}
		807	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		808	{
		809	*wd = (aio_wd)(long)SvIVX (rv);
		810	*wdsv = SvREFCNT_inc_NN (rv);
		811	*ptr = ".";
		812	return; /* path set to "." */
		813	}
		814	else
		815	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		816	}
		817
		818	*pathsv = newSVsv (path);
		819	*ptr = SvPVbyte_nolen (*pathsv);
		820	}
		821
		822	static void ecb_noinline
		823	req_set_path1 (aio_req req, SV *path)
		824	{
		825	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		826	}
		827
		828	static void ecb_noinline
		829	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		830	{
		831	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		832
		833	switch (SvTYPE (rv))
		834	{
		835	case SVt_PVIO:
		836	case SVt_PVLV:
		837	case SVt_PVGV:
		838	req->type = type_fh;
		839	req->sv1 = newSVsv (fh_or_path);
		840	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		841	break;
		842
		843	default:
		844	req->type = type_path;
		845	req_set_path1 (req, fh_or_path);
		846	break;
		847	}
		848	}
		849
		850	XS(boot_IO__AIO) ecb_cold;
		851
507	MODULE = IO::AIO PACKAGE = IO::AIO	852	MODULE = IO::AIO PACKAGE = IO::AIO
508		853
509	PROTOTYPES: ENABLE	854	PROTOTYPES: ENABLE
510		855
511	BOOT:	856	BOOT:
512	{	857	{
		858	static const struct {
		859	const char *name;
		860	IV iv;
		861	} *civ, const_iv[] = {
		862	# define const_niv(name, value) { # name, (IV) value },
		863	# define const_iv(name) { # name, (IV) name },
		864	# define const_eio(name) { # name, (IV) EIO_ ## name },
		865
		866	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		867
		868	const_iv (ENOSYS)
		869	const_iv (EXDEV)
		870	const_iv (EBADR)
		871
		872	const_iv (O_RDONLY)
		873	const_iv (O_WRONLY)
		874	const_iv (O_RDWR)
		875	const_iv (O_CREAT)
		876	const_iv (O_TRUNC)
		877	const_iv (O_EXCL)
		878	const_iv (O_APPEND)
		879
		880	const_iv (O_ASYNC)
		881	const_iv (O_DIRECT)
		882	const_iv (O_NOATIME)
		883
		884	const_iv (O_CLOEXEC)
		885	const_iv (O_NOCTTY)
		886	const_iv (O_NOFOLLOW)
		887	const_iv (O_NONBLOCK)
		888	const_iv (O_EXEC)
		889	const_iv (O_SEARCH)
		890	const_iv (O_DIRECTORY)
		891	const_iv (O_DSYNC)
		892	const_iv (O_RSYNC)
		893	const_iv (O_SYNC)
		894	const_iv (O_TTY_INIT)
		895
		896	const_iv (S_IFIFO)
		897	const_iv (S_IFCHR)
		898	const_iv (S_IFBLK)
		899	const_iv (S_IFLNK)
		900	const_iv (S_IFREG)
		901	const_iv (S_IFDIR)
		902	const_iv (S_IFWHT)
		903	const_iv (S_IFSOCK)
		904	const_iv (S_IFMT)
		905
		906	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		907	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		908	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		909	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		910	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		911	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		912
		913	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		914	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		915	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		916	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		917	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		918
		919	const_iv (ST_RDONLY)
		920	const_iv (ST_NOSUID)
		921	const_iv (ST_NODEV)
		922	const_iv (ST_NOEXEC)
		923	const_iv (ST_SYNCHRONOUS)
		924	const_iv (ST_MANDLOCK)
		925	const_iv (ST_WRITE)
		926	const_iv (ST_APPEND)
		927	const_iv (ST_IMMUTABLE)
		928	const_iv (ST_NOATIME)
		929	const_iv (ST_NODIRATIME)
		930	const_iv (ST_RELATIME)
		931
		932	const_iv (PROT_NONE)
		933	const_iv (PROT_EXEC)
		934	const_iv (PROT_READ)
		935	const_iv (PROT_WRITE)
		936
		937	/*const_iv (MAP_FIXED)*/
		938	const_iv (MAP_PRIVATE)
		939	const_iv (MAP_SHARED)
		940	const_iv (MAP_ANONYMOUS)
		941
		942	/* linuxish */
		943	const_iv (MAP_HUGETLB)
		944	const_iv (MAP_LOCKED)
		945	const_iv (MAP_NORESERVE)
		946	const_iv (MAP_POPULATE)
		947	const_iv (MAP_NONBLOCK)
		948
		949	const_iv (FIEMAP_FLAG_SYNC)
		950	const_iv (FIEMAP_FLAG_XATTR)
		951	const_iv (FIEMAP_FLAGS_COMPAT)
		952	const_iv (FIEMAP_EXTENT_LAST)
		953	const_iv (FIEMAP_EXTENT_UNKNOWN)
		954	const_iv (FIEMAP_EXTENT_DELALLOC)
		955	const_iv (FIEMAP_EXTENT_ENCODED)
		956	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		957	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		958	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		959	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		960	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		961	const_iv (FIEMAP_EXTENT_MERGED)
		962	const_iv (FIEMAP_EXTENT_SHARED)
		963
		964	const_iv (SPLICE_F_MOVE)
		965	const_iv (SPLICE_F_NONBLOCK)
		966	const_iv (SPLICE_F_MORE)
		967	const_iv (SPLICE_F_GIFT)
		968
		969	const_iv (SEEK_DATA)
		970	const_iv (SEEK_HOLE)
		971
		972	/* libeio constants */
		973	const_eio (SEEK_SET)
		974	const_eio (SEEK_CUR)
		975	const_eio (SEEK_END)
		976
		977	const_eio (MCL_FUTURE)
		978	const_eio (MCL_CURRENT)
		979
		980	const_eio (MS_ASYNC)
		981	const_eio (MS_INVALIDATE)
		982	const_eio (MS_SYNC)
		983
		984	const_eio (MT_MODIFY)
		985
		986	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		987	const_eio (SYNC_FILE_RANGE_WRITE)
		988	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		989
		990	const_eio (FALLOC_FL_KEEP_SIZE)
		991	const_eio (FALLOC_FL_PUNCH_HOLE)
		992
		993	const_eio (READDIR_DENTS)
		994	const_eio (READDIR_DIRS_FIRST)
		995	const_eio (READDIR_STAT_ORDER)
		996	const_eio (READDIR_FOUND_UNKNOWN)
		997
		998	const_eio (DT_UNKNOWN)
		999	const_eio (DT_FIFO)
		1000	const_eio (DT_CHR)
		1001	const_eio (DT_DIR)
		1002	const_eio (DT_BLK)
		1003	const_eio (DT_REG)
		1004	const_eio (DT_LNK)
		1005	const_eio (DT_SOCK)
		1006	const_eio (DT_WHT)
		1007	};
		1008
513	stash = gv_stashpv ("IO::AIO", 1);	1009	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1010	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1011	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1012	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
514		1013
515	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1014	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
516	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1015	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
517	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
518	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
519	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
520	#ifndef _WIN32
521	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
522	#endif
523		1016
524	create_respipe ();	1017	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
525		1018
526	if (eio_init (want_poll, done_poll) < 0)	1019	reinit ();
527	croak ("IO::AIO: unable to initialise eio library");
528
529	/* atfork child called in fifo order, so before eio's handler */
530	X_THREAD_ATFORK (0, 0, atfork_child);
531	}	1020	}
532		1021
533	void	1022	void
		1023	reinit ()
		1024	PROTOTYPE:
		1025
		1026	void
534	max_poll_reqs (int nreqs)	1027	max_poll_reqs (unsigned int nreqs)
535	PROTOTYPE: $	1028	PROTOTYPE: $
536	CODE:	1029	CODE:
537	eio_set_max_poll_reqs (nreqs);	1030	eio_set_max_poll_reqs (nreqs);
538		1031
539	void	1032	void
…		…
541	PROTOTYPE: $	1034	PROTOTYPE: $
542	CODE:	1035	CODE:
543	eio_set_max_poll_time (nseconds);	1036	eio_set_max_poll_time (nseconds);
544		1037
545	void	1038	void
546	min_parallel (int nthreads)	1039	min_parallel (unsigned int nthreads)
547	PROTOTYPE: $	1040	PROTOTYPE: $
548	CODE:	1041	CODE:
549	eio_set_min_parallel (nthreads);	1042	eio_set_min_parallel (nthreads);
550		1043
551	void	1044	void
552	max_parallel (int nthreads)	1045	max_parallel (unsigned int nthreads)
553	PROTOTYPE: $	1046	PROTOTYPE: $
554	CODE:	1047	CODE:
555	eio_set_max_parallel (nthreads);	1048	eio_set_max_parallel (nthreads);
556		1049
557	void	1050	void
558	max_idle (int nthreads)	1051	max_idle (unsigned int nthreads)
559	PROTOTYPE: $	1052	PROTOTYPE: $
560	CODE:	1053	CODE:
561	eio_set_max_idle (nthreads);	1054	eio_set_max_idle (nthreads);
562		1055
563	void	1056	void
		1057	idle_timeout (unsigned int seconds)
		1058	PROTOTYPE: $
		1059	CODE:
		1060	eio_set_idle_timeout (seconds);
		1061
		1062	void
564	max_outstanding (int maxreqs)	1063	max_outstanding (unsigned int maxreqs)
565	PROTOTYPE: $	1064	PROTOTYPE: $
566	CODE:	1065	CODE:
567	max_outstanding = maxreqs;	1066	max_outstanding = maxreqs;
568		1067
569	void	1068	void
		1069	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1070	PPCODE:
		1071	{
		1072	dREQ;
		1073
		1074	req->type = EIO_WD_OPEN;
		1075	req_set_path1 (req, pathname);
		1076
		1077	REQ_SEND;
		1078	}
		1079
		1080	void
570	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1081	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
571	PROTOTYPE: $$$;$
572	PPCODE:	1082	PPCODE:
573	{	1083	{
574	dREQ;	1084	dREQ;
575		1085
576	req->type = EIO_OPEN;	1086	req->type = EIO_OPEN;
577	req->sv1 = newSVsv (pathname);	1087	req_set_path1 (req, pathname);
578	req->ptr1 = SvPVbyte_nolen (req->sv1);
579	req->int1 = flags;	1088	req->int1 = flags;
580	req->int2 = mode;	1089	req->int2 = mode;
581		1090
582	REQ_SEND;	1091	REQ_SEND;
583	}	1092	}
584		1093
585	void	1094	void
586	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1095	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
587	PROTOTYPE: $;$
588	ALIAS:	1096	ALIAS:
589	aio_fsync = EIO_FSYNC	1097	aio_fsync = EIO_FSYNC
590	aio_fdatasync = EIO_FDATASYNC	1098	aio_fdatasync = EIO_FDATASYNC
		1099	aio_syncfs = EIO_SYNCFS
591	PPCODE:	1100	PPCODE:
592	{	1101	{
		1102	int fd = s_fileno_croak (fh, 0);
593	dREQ;	1103	dREQ;
594		1104
595	req->type = ix;	1105	req->type = ix;
596	req->sv1 = newSVsv (fh);	1106	req->sv1 = newSVsv (fh);
597	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1107	req->int1 = fd;
598		1108
599	REQ_SEND (req);	1109	REQ_SEND;
		1110	}
		1111
		1112	void
		1113	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1114	PPCODE:
		1115	{
		1116	int fd = s_fileno_croak (fh, 0);
		1117	dREQ;
		1118
		1119	req->type = EIO_SYNC_FILE_RANGE;
		1120	req->sv1 = newSVsv (fh);
		1121	req->int1 = fd;
		1122	req->offs = offset;
		1123	req->size = nbytes;
		1124	req->int2 = flags;
		1125
		1126	REQ_SEND;
		1127	}
		1128
		1129	void
		1130	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1131	PPCODE:
		1132	{
		1133	int fd = s_fileno_croak (fh, 0);
		1134	dREQ;
		1135
		1136	req->type = EIO_FALLOCATE;
		1137	req->sv1 = newSVsv (fh);
		1138	req->int1 = fd;
		1139	req->int2 = mode;
		1140	req->offs = offset;
		1141	req->size = len;
		1142
		1143	REQ_SEND;
600	}	1144	}
601		1145
602	void	1146	void
603	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1147	aio_close (SV *fh, SV *callback=&PL_sv_undef)
604	PROTOTYPE: $;$
605	PPCODE:	1148	PPCODE:
606	{	1149	{
607	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1150	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1151	int fd = s_fileno_croak (fh, 0);
608	dREQ;	1152	dREQ;
609		1153
610	if (close_pipe < 0)	1154	if (expect_false (close_fd < 0))
611	{	1155	{
612	int pipefd [2];	1156	int pipefd [2];
613		1157
		1158	if (
		1159	#ifdef _WIN32
		1160	_pipe (pipefd, 1, _O_BINARY) < 0
		1161	#else
614	if (pipe (pipefd) < 0	1162	pipe (pipefd) < 0
615	|| close (pipefd [1]) < 0
616	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1163	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1164	#endif
		1165	|| close (pipefd [1]) < 0
		1166	)
617	abort (); /*D*/	1167	abort (); /*D*/
618		1168
619	close_pipe = pipefd [0];	1169	close_fd = pipefd [0];
620	}	1170	}
621		1171
622	req->type = EIO_DUP2;	1172	req->type = EIO_DUP2;
623	req->int1 = close_pipe;	1173	req->int1 = close_fd;
624	req->sv2 = newSVsv (fh);	1174	req->sv2 = newSVsv (fh);
625	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1175	req->int2 = fd;
626		1176
627	REQ_SEND (req);	1177	REQ_SEND;
		1178	}
		1179
		1180	void
		1181	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1182	PPCODE:
		1183	{
		1184	int fd = s_fileno_croak (fh, 0);
		1185	dREQ;
		1186
		1187	req->type = EIO_SEEK;
		1188	req->sv1 = newSVsv (fh);
		1189	req->int1 = fd;
		1190	req->offs = SvVAL64 (offset);
		1191	req->int2 = whence;
		1192
		1193	REQ_SEND;
628	}	1194	}
629		1195
630	void	1196	void
631	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1197	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
632	ALIAS:	1198	ALIAS:
633	aio_read = EIO_READ	1199	aio_read = EIO_READ
634	aio_write = EIO_WRITE	1200	aio_write = EIO_WRITE
635	PROTOTYPE: $$$$$;$
636	PPCODE:	1201	PPCODE:
637	{	1202	{
638	STRLEN svlen;	1203	STRLEN svlen;
		1204	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
639	char *svptr = SvPVbyte (data, svlen);	1205	char *svptr = SvPVbyte (data, svlen);
640	UV len = SvUV (length);	1206	UV len = SvUV (length);
641
642	SvUPGRADE (data, SVt_PV);
643	SvPOK_on (data);
644		1207
645	if (dataoffset < 0)	1208	if (dataoffset < 0)
646	dataoffset += svlen;	1209	dataoffset += svlen;
647		1210
648	if (dataoffset < 0 || dataoffset > svlen)	1211	if (dataoffset < 0 || dataoffset > svlen)
…		…
654	if (!SvOK (length) || len + dataoffset > svlen)	1217	if (!SvOK (length) || len + dataoffset > svlen)
655	len = svlen - dataoffset;	1218	len = svlen - dataoffset;
656	}	1219	}
657	else	1220	else
658	{	1221	{
659	/* read: grow scalar as necessary */	1222	/* read: check type and grow scalar as necessary */
		1223	SvUPGRADE (data, SVt_PV);
		1224	if (SvLEN (data) >= SvCUR (data))
660	svptr = SvGROW (data, len + dataoffset + 1);	1225	svptr = SvGROW (data, len + dataoffset + 1);
		1226	else if (SvCUR (data) < len + dataoffset)
		1227	croak ("length + dataoffset outside of scalar, and cannot grow");
661	}	1228	}
662
663	if (len < 0)
664	croak ("length must not be negative");
665		1229
666	{	1230	{
667	dREQ;	1231	dREQ;
668		1232
669	req->type = ix;	1233	req->type = ix;
670	req->sv1 = newSVsv (fh);	1234	req->sv1 = newSVsv (fh);
671	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1235	req->int1 = fd;
672	: IoOFP (sv_2io (fh)));
673	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1236	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
674	req->size = len;	1237	req->size = len;
675	req->sv2 = SvREFCNT_inc_NN (data);	1238	req->sv2 = SvREFCNT_inc (data);
676	req->ptr2 = (char *)svptr + dataoffset;	1239	req->ptr2 = (char *)svptr + dataoffset;
677	req->stroffset = dataoffset;	1240	req->stroffset = dataoffset;
678		1241
679	if (!SvREADONLY (data))	1242	if (!SvREADONLY (data))
680	{	1243	{
…		…
685	REQ_SEND;	1248	REQ_SEND;
686	}	1249	}
687	}	1250	}
688		1251
689	void	1252	void
690	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1253	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
691	PROTOTYPE: $$;$	1254	ALIAS:
		1255	aio_readlink = EIO_READLINK
		1256	aio_realpath = EIO_REALPATH
692	PPCODE:	1257	PPCODE:
693	{	1258	{
694	SV *data;
695	dREQ;	1259	dREQ;
696		1260
697	req->type = EIO_READLINK;	1261	req->type = ix;
698	req->sv1 = newSVsv (path);	1262	req_set_path1 (req, pathname);
699	req->ptr1 = SvPVbyte_nolen (req->sv1);
700		1263
701	REQ_SEND;	1264	REQ_SEND;
702	}	1265	}
703		1266
704	void	1267	void
705	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1268	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
706	PROTOTYPE: $$$$;$
707	PPCODE:	1269	PPCODE:
708	{	1270	{
		1271	int ifd = s_fileno_croak (in_fh , 0);
		1272	int ofd = s_fileno_croak (out_fh, 1);
709	dREQ;	1273	dREQ;
710		1274
711	req->type = EIO_SENDFILE;	1275	req->type = EIO_SENDFILE;
712	req->sv1 = newSVsv (out_fh);	1276	req->sv1 = newSVsv (out_fh);
713	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1277	req->int1 = ofd;
714	req->sv2 = newSVsv (in_fh);	1278	req->sv2 = newSVsv (in_fh);
715	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1279	req->int2 = ifd;
716	req->offs = SvVAL64 (in_offset);	1280	req->offs = in_offset;
717	req->size = length;	1281	req->size = length;
718		1282
719	REQ_SEND;	1283	REQ_SEND;
720	}	1284	}
721		1285
722	void	1286	void
723	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1287	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
724	PROTOTYPE: $$$;$
725	PPCODE:	1288	PPCODE:
726	{	1289	{
		1290	int fd = s_fileno_croak (fh, 0);
727	dREQ;	1291	dREQ;
728		1292
729	req->type = EIO_READAHEAD;	1293	req->type = EIO_READAHEAD;
730	req->sv1 = newSVsv (fh);	1294	req->sv1 = newSVsv (fh);
731	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1295	req->int1 = fd;
732	req->offs = SvVAL64 (offset);	1296	req->offs = offset;
733	req->size = length;	1297	req->size = length;
734		1298
735	REQ_SEND;	1299	REQ_SEND;
736	}	1300	}
737		1301
738	void	1302	void
739	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1303	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
740	ALIAS:	1304	ALIAS:
741	aio_stat = EIO_STAT	1305	aio_stat = EIO_STAT
742	aio_lstat = EIO_LSTAT	1306	aio_lstat = EIO_LSTAT
		1307	aio_statvfs = EIO_STATVFS
743	PPCODE:	1308	PPCODE:
744	{	1309	{
745	dREQ;	1310	dREQ;
746		1311
747	req->sv1 = newSVsv (fh_or_path);	1312	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
748
749	if (SvPOK (req->sv1))
750	{
751	req->type = ix;
752	req->ptr1 = SvPVbyte_nolen (req->sv1);
753	}
754	else
755	{
756	req->type = EIO_FSTAT;
757	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
758	}
759		1313
760	REQ_SEND;	1314	REQ_SEND;
761	}	1315	}
		1316
		1317	UV
		1318	major (UV dev)
		1319	ALIAS:
		1320	minor = 1
		1321	CODE:
		1322	RETVAL = ix ? major (dev) : minor (dev);
		1323	OUTPUT:
		1324	RETVAL
		1325
		1326	UV
		1327	makedev (UV maj, UV min)
		1328	CODE:
		1329	RETVAL = makedev (maj, min);
		1330	OUTPUT:
		1331	RETVAL
762		1332
763	void	1333	void
764	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1334	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
765	PPCODE:	1335	PPCODE:
766	{	1336	{
767	dREQ;	1337	dREQ;
768		1338
769	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1339	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
770	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1340	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
771	req->sv1 = newSVsv (fh_or_path);	1341	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
772
773	if (SvPOK (req->sv1))
774	{
775	req->type = EIO_UTIME;
776	req->ptr1 = SvPVbyte_nolen (req->sv1);
777	}
778	else
779	{
780	req->type = EIO_FUTIME;
781	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
782	}
783		1342
784	REQ_SEND;	1343	REQ_SEND;
785	}	1344	}
786		1345
787	void	1346	void
788	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1347	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
789	PPCODE:	1348	PPCODE:
790	{	1349	{
791	dREQ;	1350	dREQ;
792		1351
793	req->sv1 = newSVsv (fh_or_path);
794	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1352	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
795		1353	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
796	if (SvPOK (req->sv1))
797	{
798	req->type = EIO_TRUNCATE;
799	req->ptr1 = SvPVbyte_nolen (req->sv1);
800	}
801	else
802	{
803	req->type = EIO_FTRUNCATE;
804	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
805	}
806		1354
807	REQ_SEND;	1355	REQ_SEND;
808	}	1356	}
809		1357
810	void	1358	void
811	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1359	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
812	ALIAS:
813	aio_chmod = EIO_CHMOD
814	aio_mkdir = EIO_MKDIR
815	PPCODE:	1360	PPCODE:
816	{	1361	{
817	dREQ;	1362	dREQ;
818		1363
819	req->int2 = mode;	1364	req->int2 = mode;
820	req->sv1 = newSVsv (fh_or_path);	1365	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
821
822	if (SvPOK (req->sv1))
823	{
824	req->type = ix;
825	req->ptr1 = SvPVbyte_nolen (req->sv1);
826	}
827	else
828	{
829	req->type = EIO_FCHMOD;
830	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
831	}
832		1366
833	REQ_SEND;	1367	REQ_SEND;
834	}	1368	}
835		1369
836	void	1370	void
…		…
839	{	1373	{
840	dREQ;	1374	dREQ;
841		1375
842	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1376	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
843	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1377	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
844	req->sv1 = newSVsv (fh_or_path);	1378	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
845		1379
846	if (SvPOK (req->sv1))	1380	REQ_SEND;
847	{	1381	}
		1382
		1383	void
		1384	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1385	PPCODE:
		1386	{
		1387	dREQ;
		1388
		1389	req->type = EIO_READDIR;
		1390	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1391
		1392	if (flags & EIO_READDIR_DENTS)
		1393	req->int1 |= EIO_READDIR_CUSTOM2;
		1394
		1395	req_set_path1 (req, pathname);
		1396
		1397	REQ_SEND;
		1398	}
		1399
		1400	void
		1401	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1402	PPCODE:
		1403	{
		1404	dREQ;
		1405
848	req->type = EIO_CHOWN;	1406	req->type = EIO_MKDIR;
849	req->ptr1 = SvPVbyte_nolen (req->sv1);	1407	req->int2 = mode;
850	}	1408	req_set_path1 (req, pathname);
851	else
852	{
853	req->type = EIO_FCHOWN;
854	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
855	}
856		1409
857	REQ_SEND;	1410	REQ_SEND;
858	}	1411	}
859		1412
860	void	1413	void
…		…
866	PPCODE:	1419	PPCODE:
867	{	1420	{
868	dREQ;	1421	dREQ;
869		1422
870	req->type = ix;	1423	req->type = ix;
871	req->sv1 = newSVsv (pathname);	1424	req_set_path1 (req, pathname);
872	req->ptr1 = SvPVbyte_nolen (req->sv1);
873		1425
874	REQ_SEND;	1426	REQ_SEND;
875	}	1427	}
876		1428
877	void	1429	void
…		…
880	aio_link = EIO_LINK	1432	aio_link = EIO_LINK
881	aio_symlink = EIO_SYMLINK	1433	aio_symlink = EIO_SYMLINK
882	aio_rename = EIO_RENAME	1434	aio_rename = EIO_RENAME
883	PPCODE:	1435	PPCODE:
884	{	1436	{
		1437	eio_wd wd2 = 0;
885	dREQ;	1438	dREQ;
886		1439
887	req->type = ix;	1440	req->type = ix;
888	req->sv1 = newSVsv (oldpath);	1441	req_set_path1 (req, oldpath);
889	req->ptr1 = SvPVbyte_nolen (req->sv1);	1442	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
890	req->sv2 = newSVsv (newpath);	1443	req->int3 = (long)wd2;
891	req->ptr2 = SvPVbyte_nolen (req->sv2);
892		1444
893	REQ_SEND;	1445	REQ_SEND;
894	}	1446	}
895		1447
896	void	1448	void
…		…
898	PPCODE:	1450	PPCODE:
899	{	1451	{
900	dREQ;	1452	dREQ;
901		1453
902	req->type = EIO_MKNOD;	1454	req->type = EIO_MKNOD;
903	req->sv1 = newSVsv (pathname);
904	req->ptr1 = SvPVbyte_nolen (req->sv1);
905	req->int2 = (mode_t)mode;	1455	req->int2 = (mode_t)mode;
906	req->offs = dev;	1456	req->offs = dev;
		1457	req_set_path1 (req, pathname);
907		1458
908	REQ_SEND;	1459	REQ_SEND;
909	}	1460	}
910		1461
911	void	1462	void
		1463	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1464	ALIAS:
		1465	aio_mtouch = EIO_MTOUCH
		1466	aio_msync = EIO_MSYNC
		1467	PPCODE:
		1468	{
		1469	STRLEN svlen;
		1470	char *svptr = SvPVbyte (data, svlen);
		1471	UV len = SvUV (length);
		1472
		1473	if (offset < 0)
		1474	offset += svlen;
		1475
		1476	if (offset < 0 || offset > svlen)
		1477	croak ("offset outside of scalar");
		1478
		1479	if (!SvOK (length) || len + offset > svlen)
		1480	len = svlen - offset;
		1481
		1482	{
		1483	dREQ;
		1484
		1485	req->type = ix;
		1486	req->sv2 = SvREFCNT_inc (data);
		1487	req->ptr2 = (char *)svptr + offset;
		1488	req->size = len;
		1489	req->int1 = flags;
		1490
		1491	REQ_SEND;
		1492	}
		1493	}
		1494
		1495	void
		1496	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1497	PPCODE:
		1498	{
		1499	STRLEN svlen;
		1500	char *svptr = SvPVbyte (data, svlen);
		1501	UV len = SvUV (length);
		1502
		1503	if (offset < 0)
		1504	offset += svlen;
		1505
		1506	if (offset < 0 || offset > svlen)
		1507	croak ("offset outside of scalar");
		1508
		1509	if (!SvOK (length) || len + offset > svlen)
		1510	len = svlen - offset;
		1511
		1512	{
		1513	dREQ;
		1514
		1515	req->type = EIO_MLOCK;
		1516	req->sv2 = SvREFCNT_inc (data);
		1517	req->ptr2 = (char *)svptr + offset;
		1518	req->size = len;
		1519
		1520	REQ_SEND;
		1521	}
		1522	}
		1523
		1524	void
		1525	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1526	PPCODE:
		1527	{
		1528	dREQ;
		1529
		1530	req->type = EIO_MLOCKALL;
		1531	req->int1 = flags;
		1532
		1533	REQ_SEND;
		1534	}
		1535
		1536	void
		1537	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1538	PPCODE:
		1539	{
		1540	int fd = s_fileno_croak (fh, 0);
		1541	dREQ;
		1542
		1543	req->type = EIO_CUSTOM;
		1544	req->sv1 = newSVsv (fh);
		1545	req->int1 = fd;
		1546
		1547	req->feed = fiemap;
		1548	#if HAVE_FIEMAP
		1549	/* keep our fingers crossed that the next two types are 64 bit */
		1550	req->offs = start;
		1551	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1552	req->int2 = flags;
		1553	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1554	#endif
		1555
		1556	REQ_SEND;
		1557	}
		1558
		1559	void
912	aio_busy (double delay, SV *callback=&PL_sv_undef)	1560	aio_busy (double delay, SV *callback=&PL_sv_undef)
913	PPCODE:	1561	PPCODE:
914	{	1562	{
915	dREQ;	1563	dREQ;
916		1564
…		…
920	REQ_SEND;	1568	REQ_SEND;
921	}	1569	}
922		1570
923	void	1571	void
924	aio_group (SV *callback=&PL_sv_undef)	1572	aio_group (SV *callback=&PL_sv_undef)
925	PROTOTYPE: ;$
926	PPCODE:	1573	PPCODE:
927	{	1574	{
928	dREQ;	1575	dREQ;
929		1576
930	req->type = EIO_GROUP;	1577	req->type = EIO_GROUP;
931		1578
932	req_submit (req);	1579	req_submit (req);
933	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1580	XPUSHs (req_sv (req, aio_grp_stash));
934	}	1581	}
935		1582
936	void	1583	void
937	aio_nop (SV *callback=&PL_sv_undef)	1584	aio_nop (SV *callback=&PL_sv_undef)
938	ALIAS:	1585	ALIAS:
…		…
947	REQ_SEND;	1594	REQ_SEND;
948	}	1595	}
949		1596
950	int	1597	int
951	aioreq_pri (int pri = 0)	1598	aioreq_pri (int pri = 0)
952	PROTOTYPE: ;$
953	CODE:	1599	CODE:
954	RETVAL = next_pri;	1600	RETVAL = next_pri;
955	if (items > 0)	1601	if (items > 0)
956	{	1602	{
957	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1603	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
969	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1615	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
970	next_pri = nice;	1616	next_pri = nice;
971		1617
972	void	1618	void
973	flush ()	1619	flush ()
974	PROTOTYPE:
975	CODE:	1620	CODE:
976	while (eio_nreqs ())	1621	while (eio_nreqs ())
977	{	1622	{
978	poll_wait ();	1623	poll_wait ();
979	poll_cb ();	1624	poll_cb ();
980	}	1625	}
981		1626
982	int	1627	int
983	poll()	1628	poll ()
984	PROTOTYPE:
985	CODE:	1629	CODE:
986	poll_wait ();	1630	poll_wait ();
987	RETVAL = poll_cb ();	1631	RETVAL = poll_cb ();
988	OUTPUT:	1632	OUTPUT:
989	RETVAL	1633	RETVAL
990		1634
991	int	1635	int
992	poll_fileno()	1636	poll_fileno ()
993	PROTOTYPE:
994	CODE:	1637	CODE:
995	RETVAL = respipe [0];	1638	RETVAL = s_epipe_fd (&respipe);
996	OUTPUT:	1639	OUTPUT:
997	RETVAL	1640	RETVAL
998		1641
999	int	1642	int
1000	poll_cb(...)	1643	poll_cb (...)
1001	PROTOTYPE:	1644	PROTOTYPE:
1002	CODE:	1645	CODE:
1003	RETVAL = poll_cb ();	1646	RETVAL = poll_cb ();
1004	OUTPUT:	1647	OUTPUT:
1005	RETVAL	1648	RETVAL
1006		1649
1007	void	1650	void
1008	poll_wait()	1651	poll_wait ()
1009	PROTOTYPE:
1010	CODE:	1652	CODE:
1011	poll_wait ();	1653	poll_wait ();
1012		1654
1013	int	1655	int
1014	nreqs()	1656	nreqs ()
1015	PROTOTYPE:
1016	CODE:	1657	CODE:
1017	RETVAL = eio_nreqs ();	1658	RETVAL = eio_nreqs ();
1018	OUTPUT:	1659	OUTPUT:
1019	RETVAL	1660	RETVAL
1020		1661
1021	int	1662	int
1022	nready()	1663	nready ()
1023	PROTOTYPE:
1024	CODE:	1664	CODE:
1025	RETVAL = eio_nready ();	1665	RETVAL = eio_nready ();
1026	OUTPUT:	1666	OUTPUT:
1027	RETVAL	1667	RETVAL
1028		1668
1029	int	1669	int
1030	npending()	1670	npending ()
1031	PROTOTYPE:
1032	CODE:	1671	CODE:
1033	RETVAL = eio_npending ();	1672	RETVAL = eio_npending ();
1034	OUTPUT:	1673	OUTPUT:
1035	RETVAL	1674	RETVAL
1036		1675
1037	int	1676	int
1038	nthreads()	1677	nthreads ()
1039	PROTOTYPE:
1040	CODE:	1678	CODE:
1041	RETVAL = eio_nthreads ();	1679	RETVAL = eio_nthreads ();
1042	OUTPUT:	1680	OUTPUT:
1043	RETVAL	1681	RETVAL
1044		1682
		1683	int
		1684	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1685	CODE:
		1686	RETVAL = posix_fadvise (fh, offset, length, advice);
		1687	OUTPUT:
		1688	RETVAL
		1689
		1690	IV
		1691	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1692	CODE:
		1693	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1694	OUTPUT:
		1695	RETVAL
		1696
		1697	void
		1698	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1699	PPCODE:
		1700	sv_unmagic (scalar, MMAP_MAGIC);
		1701	{
		1702	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1703	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1704	if (addr == (void *)-1)
		1705	XSRETURN_NO;
		1706
		1707	sv_force_normal (scalar);
		1708
		1709	/* we store the length in mg_obj, as namlen is I32 :/ */
		1710	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1711	->mg_obj = (SV *)length;
		1712
		1713	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1714
		1715	if (!(prot & PROT_WRITE))
		1716	SvREADONLY_on (scalar);
		1717
		1718	if (SvLEN (scalar))
		1719	Safefree (SvPVX (scalar));
		1720
		1721	SvPVX (scalar) = (char *)addr;
		1722	SvCUR_set (scalar, length);
		1723	SvLEN_set (scalar, 0);
		1724	SvPOK_only (scalar);
		1725
		1726	XSRETURN_YES;
		1727	}
		1728
		1729	void
		1730	munmap (SV *scalar)
		1731	CODE:
		1732	sv_unmagic (scalar, MMAP_MAGIC);
		1733
		1734	int
		1735	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1736	ALIAS:
		1737	mprotect = 1
		1738	CODE:
		1739	{
		1740	STRLEN svlen;
		1741	void *addr = SvPVbyte (scalar, svlen);
		1742	size_t len = SvUV (length);
		1743
		1744	if (offset < 0)
		1745	offset += svlen;
		1746
		1747	if (offset < 0 || offset > svlen)
		1748	croak ("offset outside of scalar");
		1749
		1750	if (!SvOK (length) || len + offset > svlen)
		1751	len = svlen - offset;
		1752
		1753	addr = (void *)(((intptr_t)addr) + offset);
		1754	eio_page_align (&addr, &len);
		1755
		1756	switch (ix)
		1757	{
		1758	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1759	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1760	}
		1761	}
		1762	OUTPUT:
		1763	RETVAL
		1764
		1765	int
		1766	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1767	CODE:
		1768	{
		1769	STRLEN svlen;
		1770	void *addr = SvPVbyte (scalar, svlen);
		1771	size_t len = SvUV (length);
		1772
		1773	if (offset < 0)
		1774	offset += svlen;
		1775
		1776	if (offset < 0 || offset > svlen)
		1777	croak ("offset outside of scalar");
		1778
		1779	if (!SvOK (length) || len + offset > svlen)
		1780	len = svlen - offset;
		1781
		1782	addr = (void *)(((intptr_t)addr) + offset);
		1783	eio_page_align (&addr, &len);
		1784	#if _POSIX_MEMLOCK_RANGE
		1785	RETVAL = munlock (addr, len);
		1786	#else
		1787	RETVAL = EIO_ENOSYS ();
		1788	#endif
		1789	}
		1790	OUTPUT:
		1791	RETVAL
		1792
		1793	int
		1794	munlockall ()
		1795	CODE:
		1796	#if _POSIX_MEMLOCK
		1797	munlockall ();
		1798	#else
		1799	RETVAL = EIO_ENOSYS ();
		1800	#endif
		1801	OUTPUT:
		1802	RETVAL
		1803
		1804	int
		1805	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1806	CODE:
		1807	{
		1808	#if HAVE_LINUX_SPLICE
		1809	loff_t off_in_, off_out_;
		1810	RETVAL = splice (
		1811	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1812	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1813	length, flags
		1814	);
		1815	#else
		1816	RETVAL = EIO_ENOSYS ();
		1817	#endif
		1818	}
		1819	OUTPUT:
		1820	RETVAL
		1821
		1822	int
		1823	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1824	CODE:
		1825	#if HAVE_LINUX_SPLICE
		1826	RETVAL = tee (rfh, wfh, length, flags);
		1827	#else
		1828	RETVAL = EIO_ENOSYS ();
		1829	#endif
		1830	OUTPUT:
		1831	RETVAL
		1832
1045	void _on_next_submit (SV *cb)	1833	void _on_next_submit (SV *cb)
1046	CODE:	1834	CODE:
1047	SvREFCNT_dec (on_next_submit);	1835	SvREFCNT_dec (on_next_submit);
1048	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1836	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1049		1837
1050	PROTOTYPES: DISABLE	1838	PROTOTYPES: DISABLE
1051		1839
		1840	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1841
		1842	BOOT:
		1843	{
		1844	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1845	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1846	}
		1847
		1848	void
		1849	DESTROY (SV *self)
		1850	CODE:
		1851	{
		1852	aio_wd wd = SvAIO_WD (self);
		1853	#if HAVE_AT
		1854	{
		1855	SV *callback = &PL_sv_undef;
		1856	dREQ; /* clobbers next_pri :/ */
		1857	next_pri = req->pri; /* restore next_pri */
		1858	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1859	req->type = EIO_WD_CLOSE;
		1860	req->wd = wd;
		1861	REQ_SEND;
		1862	}
		1863	#else
		1864	eio_wd_close_sync (wd);
		1865	#endif
		1866	}
		1867
1052	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1868	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1053		1869
1054	void	1870	void
1055	cancel (aio_req_ornot req)	1871	cancel (aio_req_ornot req)
1056	CODE:	1872	CODE:
…		…
1063	if (GIMME_V != G_VOID)	1879	if (GIMME_V != G_VOID)
1064	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1880	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1065		1881
1066	if (items > 1)	1882	if (items > 1)
1067	{	1883	{
1068	SV *cb_cv = get_cb (callback);	1884	SV *cb_cv =get_cb (callback);
1069		1885
1070	SvREFCNT_dec (req->callback);	1886	SvREFCNT_dec (req->callback);
1071	req->callback = SvREFCNT_inc (cb_cv);	1887	req->callback = SvREFCNT_inc (cb_cv);
1072	}	1888	}
1073	}	1889	}
…		…
1110	AV *av;	1926	AV *av;
1111		1927
1112	grp->errorno = errno;	1928	grp->errorno = errno;
1113		1929
1114	av = newAV ();	1930	av = newAV ();
		1931	av_extend (av, items - 1);
1115		1932
1116	for (i = 1; i < items; ++i )	1933	for (i = 1; i < items; ++i )
1117	av_push (av, newSVsv (ST (i)));	1934	av_push (av, newSVsv (ST (i)));
1118		1935
1119	SvREFCNT_dec (grp->sv1);	1936	SvREFCNT_dec (grp->sv1);
…		…
1133	void	1950	void
1134	feed (aio_req grp, SV *callback=&PL_sv_undef)	1951	feed (aio_req grp, SV *callback=&PL_sv_undef)
1135	CODE:	1952	CODE:
1136	{	1953	{
1137	SvREFCNT_dec (grp->sv2);	1954	SvREFCNT_dec (grp->sv2);
1138	grp->sv2 = newSVsv (callback);	1955	grp->sv2 = newSVsv (callback);
		1956	grp->feed = aio_grp_feed;
1139		1957
1140	if (grp->int2 <= 0)	1958	if (grp->int2 <= 0)
1141	grp->int2 = 2;	1959	grp->int2 = 2;
1142		1960
1143	eio_grp_limit (grp, grp->int2);	1961	eio_grp_limit (grp, grp->int2);

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