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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.138 by root, Tue Apr 21 20:06:05 2009 UTC vs.
Revision 1.216 by root, Wed Jul 25 16:12:28 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 req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
117	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
118		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 64 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 maybe 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_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		200	break; /* autosizing successful, we are done */
		201
		202	fiemap->fm_flags = req->int2;
		203	fiemap->fm_extent_count = 0;
		204
		205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		206	return;
		207
		208	count = fiemap->fm_mapped_extents;
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
		221
119	enum {	222	enum {
120	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121	};	224	};
122		225
123	#include "libeio/eio.c"
124
125	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
126	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
127		229
128	static SV *on_next_submit;	230	static SV *on_next_submit;
129	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
130	static int max_outstanding;	232	static int max_outstanding;
131		233
132	static int respipe_osf [2], respipe [2] = { -1, -1 };	234	static s_epipe respipe;
133		235
134	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
135	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
136		238
137	static void want_poll (void)	239	static void
		240	want_poll (void)
138	{	241	{
139	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
140	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	243	s_epipe_signal (&respipe);
141	}	244	}
142		245
143	static void done_poll (void)	246	static void
		247	done_poll (void)
144	{	248	{
145	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
146	char buf [4];	250	s_epipe_drain (&respipe);
147	while (respipe_read (respipe [0], buf, 4) == 4)
148	;
149	}	251	}
150		252
151	/* must be called at most once */	253	/* must be called at most once */
152	static SV *req_sv (aio_req req, const char *klass)	254	static SV *
		255	req_sv (aio_req req, HV *stash)
153	{	256	{
154	if (!req->self)	257	if (!req->self)
155	{	258	{
156	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
157	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158	}	261	}
159		262
160	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161	}	264	}
162		265
163	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
164	{	274	{
165	MAGIC *mg;	275	MAGIC *mg;
166		276
167	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		280	&& SvSTASH (SvRV (sv)) != aio_req_stash
		281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
168	croak ("object of class " AIO_REQ_KLASS " expected");	282	croak ("object of class IO::AIO::REQ expected");
169		283
170	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171		285
172	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
173	}	287	}
174		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
175	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
176	{	302	{
177	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
178	{	304	{
179	dSP;	305	dSP;
180		306
181	ENTER;	307	ENTER;
182	SAVETMPS;	308	SAVETMPS;
183	PUSHMARK (SP);	309	PUSHMARK (SP);
184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	310	XPUSHs (req_sv (grp, aio_grp_stash));
185	PUTBACK;	311	PUTBACK;
186	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	312	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187	SPAGAIN;	313	SPAGAIN;
188	FREETMPS;	314	FREETMPS;
189	LEAVE;	315	LEAVE;
190	}	316	}
191	}	317	}
192		318
		319	static void
193	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
194	{	321	{
195	eio_submit (req);	322	eio_submit (req);
196		323
197	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
198	{	325	{
…		…
205	PUTBACK;	332	PUTBACK;
206	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
207	}	334	}
208	}	335	}
209		336
		337	static int
210	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
211	{	339	{
212	dSP;
213
214	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
215	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
216		342
217	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
218	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
219	ENTER;	349	ENTER;
220	SAVETMPS;	350	SAVETMPS;
221	PUSHMARK (SP);	351	PUSHMARK (SP);
222	EXTEND (SP, 1);	352	EXTEND (SP, 1);
223		353
		354	/* do not recreate the result IV from scratch each time */
		355	if (expect_true (sv_result_cache))
		356	{
		357	sv_result = sv_result_cache; sv_result_cache = 0;
		358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
		360	}
		361	else
		362	{
		363	sv_result = newSViv (req->result);
		364	SvREADONLY_on (sv_result);
		365	}
		366
224	switch (req->type)	367	switch (req->type)
225	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
226	case EIO_READDIR:	373	case EIO_READDIR:
227	{	374	{
228	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
229		376
230	if (req->result >= 0)	377	if (req->result >= 0)
231	{	378	{
232	int i;	379	int i;
233	char *buf = req->ptr2;	380	char *names = (char *)req->ptr2;
		381	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234	AV *av = newAV ();	382	AV *av = newAV ();
235		383
236	av_extend (av, req->result - 1);	384	av_extend (av, req->result - 1);
237		385
238	for (i = 0; i < req->result; ++i)	386	for (i = 0; i < req->result; ++i)
239	{	387	{
240	SV *sv = newSVpv (buf, 0);	388	if (req->int1 & EIO_READDIR_DENTS)
		389	{
		390	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
241		391
		392	if (req->int1 & EIO_READDIR_CUSTOM2)
		393	{
		394	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		395	AV *avent = newAV ();
		396
		397	av_extend (avent, 2);
		398
		399	if (!sv_type [ent->type])
		400	{
		401	sv_type [ent->type] = newSViv (ent->type);
		402	SvREADONLY_on (sv_type [ent->type]);
		403	}
		404
		405	av_store (avent, 0, namesv);
		406	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		407	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		408
		409	av_store (av, i, newRV_noinc ((SV *)avent));
		410	}
		411	else
242	av_store (av, i, sv);	412	av_store (av, i, namesv);
		413
		414	++ent;
		415	}
		416	else
		417	{
		418	SV *name = newSVpv (names, 0);
		419	av_store (av, i, name);
243	buf += SvCUR (sv) + 1;	420	names += SvCUR (name) + 1;
		421	}
244	}	422	}
245		423
246	rv = sv_2mortal (newRV_noinc ((SV *)av));	424	rv = sv_2mortal (newRV_noinc ((SV *)av));
247	}	425	}
248		426
249	PUSHs (rv);	427	PUSHs (rv);
		428
		429	if (req->int1 & EIO_READDIR_CUSTOM1)
		430	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
250	}	431	}
251	break;	432	break;
252		433
253	case EIO_OPEN:	434	case EIO_OPEN:
254	{	435	{
…		…
260	GV *gv = (GV *)sv_newmortal ();	441	GV *gv = (GV *)sv_newmortal ();
261	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	442	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
262	char sym [64];	443	char sym [64];
263	int symlen;	444	int symlen;
264		445
265	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	446	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
266	gv_init (gv, stash, sym, symlen, 0);	447	gv_init (gv, aio_stash, sym, symlen, 0);
267		448
268	symlen = snprintf (	449	symlen = snprintf (
269	sym,	450	sym,
270	sizeof (sym),	451	sizeof (sym),
271	"%s&=%d",	452	"%s&=%d",
272	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	453	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
273	req->result	454	(int)req->result
274	);	455	);
275		456
276	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	457	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
277	fh = (SV *)gv;	458	fh = (SV *)gv;
278	}	459	}
279		460
280	PUSHs (fh);	461	PUSHs (fh);
281	}	462	}
		463	break;
		464
		465	case EIO_STATVFS:
		466	case EIO_FSTATVFS:
		467	{
		468	SV *rv = &PL_sv_undef;
		469
		470	#ifndef _WIN32
		471	if (req->result >= 0)
		472	{
		473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		474	HV *hv = newHV ();
		475
		476	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		477
		478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		479	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		480	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		481	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		482	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		483	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		484	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		489	}
		490	#endif
		491
		492	PUSHs (rv);
		493	}
		494
282	break;	495	break;
283		496
284	case EIO_GROUP:	497	case EIO_GROUP:
285	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
286		499
…		…
298	case EIO_NOP:	511	case EIO_NOP:
299	case EIO_BUSY:	512	case EIO_BUSY:
300	break;	513	break;
301		514
302	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
303	if (req->result > 0)	517	if (req->result > 0)
304	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
305	break;	519	break;
306		520
307	case EIO_STAT:	521	case EIO_STAT:
308	case EIO_LSTAT:	522	case EIO_LSTAT:
309	case EIO_FSTAT:	523	case EIO_FSTAT:
310	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
311	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
312	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
313	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
314	break;	535	break;
315		536
316	case EIO_READ:	537	case EIO_READ:
317	{	538	{
318	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
319	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
320	SvPOK_only (req->sv2);	541	SvPOK_only (req->sv2);
321	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
322	PUSHs (sv_2mortal (newSViv (req->result)));	543	PUSHs (sv_result);
323	}	544	}
324	break;	545	break;
325		546
326	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	#if HAVE_FIEMAP
		551	if (!req->result)
		552	{
		553	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		554
		555	if (fiemap->fm_extent_count)
		556	{
		557	AV *av = newAV ();
		558	int i;
		559
		560	while (fiemap->fm_mapped_extents)
		561	{
		562	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		563	AV *ext_av = newAV ();
		564
		565	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		566	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		567	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		568	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		569
		570	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		571	}
		572
		573	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		574	}
		575	else
		576	{
		577	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		578	PUSHs (sv_result);
		579	}
		580	}
		581	#endif
		582	}
		583	else
		584	PUSHs (sv_result);
		585	break;
		586
		587	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
327	if (req->result > 0)	588	if (req->result > 0)
328	req->result = 0;	589	SvIV_set (sv_result, 0);
329	/* FALLTHROUGH */	590	/* FALLTHROUGH */
330		591
331	default:	592	default:
332	PUSHs (sv_2mortal (newSViv (req->result)));	593	PUSHs (sv_result);
333	break;	594	break;
334	}	595	}
335		596
336	errno = req->errorno;	597	errno = req->errorno;
337		598
338	PUTBACK;	599	PUTBACK;
339	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	600	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
340	SPAGAIN;	601	SPAGAIN;
341		602
		603	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		604	SvREFCNT_dec (sv_result);
		605	else
		606	sv_result_cache = sv_result;
		607
342	FREETMPS;	608	FREETMPS;
343	LEAVE;	609	LEAVE;
344		610
345	PUTBACK;	611	PUTBACK;
346	}	612	}
347		613
348	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
349	}	615	}
350		616
		617	static void
351	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
352	{	619	{
353	if (req->self)	620	if (req->self)
354	{	621	{
355	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
356	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
357	}	624	}
358		625
359	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
360	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
361	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
362		631
363	Safefree (req);	632	free (req);
364	}	633	}
365		634
		635	static void
366	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
367	{	637	{
368	aio_req sub;
369
370	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
371	return;	639	return;
372		640
373	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
374	grp->sv2 = 0;	642	grp->sv2 = 0;
375		643
376	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
377	}	645	}
378		646
379	#ifdef USE_SOCKETS_AS_HANDLES	647	static void ecb_cold
380	# define TO_SOCKET(x) (win32_get_osfhandle (x))	648	create_respipe (void)
381	#else	649	{
382	# define TO_SOCKET(x) (x)	650	if (s_epipe_renew (&respipe))
383	#endif	651	croak ("IO::AIO: unable to initialize result pipe");
		652	}
384		653
385	static void	654	static void
386	create_respipe (void)	655	poll_wait (void)
387	{	656	{
388	int old_readfd = respipe [0];
389
390	if (respipe [1] >= 0)
391	respipe_close (TO_SOCKET (respipe [1]));
392
393	#ifdef _WIN32
394	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
395	#else
396	if (pipe (respipe))
397	#endif
398	croak ("unable to initialize result pipe");
399
400	if (old_readfd >= 0)
401	{
402	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
403	croak ("unable to initialize result pipe(2)");
404
405	respipe_close (respipe [0]);
406	respipe [0] = old_readfd;
407	}
408
409	#ifdef _WIN32
410	int arg = 1;
411	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
412	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
413	#else
414	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
415	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
416	#endif
417	croak ("unable to initialize result pipe(3)");
418
419	respipe_osf [0] = TO_SOCKET (respipe [0]);
420	respipe_osf [1] = TO_SOCKET (respipe [1]);
421	}
422
423	static void poll_wait (void)
424	{
425	fd_set rfd;
426
427	while (eio_nreqs ())	657	while (eio_nreqs ())
428	{	658	{
429	int size;	659	int size;
430		660
431	X_LOCK (reslock);	661	X_LOCK (reslock);
…		…
435	if (size)	665	if (size)
436	return;	666	return;
437		667
438	etp_maybe_start_thread ();	668	etp_maybe_start_thread ();
439		669
440	FD_ZERO (&rfd);	670	s_epipe_wait (&respipe);
441	FD_SET (respipe [0], &rfd);
442
443	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
444	}	671	}
445	}	672	}
446		673
447	static int poll_cb (void)	674	static int
		675	poll_cb (void)
448	{	676	{
449	for (;;)	677	for (;;)
450	{	678	{
451	int res = eio_poll ();	679	int res = eio_poll ();
452		680
…		…
458		686
459	poll_wait ();	687	poll_wait ();
460	}	688	}
461	}	689	}
462		690
463	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
464	{	693	{
465	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
466	}	698	}
		699
		700	/*****************************************************************************/
		701
		702	#if !_POSIX_MAPPED_FILES
		703	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		704	# define munmap(addr,length) EIO_ENOSYS ()
		705	#endif
		706
		707	#if !_POSIX_MEMORY_PROTECTION
		708	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		709	# define PROT_NONE 0
		710	# define PROT_WRITE 0
		711	# define MAP_PRIVATE 0
		712	# define MAP_SHARED 0
		713	# define MAP_FIXED 0
		714	#endif
		715
		716	#define MMAP_MAGIC PERL_MAGIC_ext
		717
		718	static int ecb_cold
		719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		720	{
		721	int old_errno = errno;
		722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		723	errno = old_errno;
		724
		725	mg->mg_obj = 0; /* just in case */
		726
		727	SvREADONLY_off (sv);
		728
		729	if (SvPVX (sv) != mg->mg_ptr)
		730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		731
		732	SvCUR_set (sv, 0);
		733	SvPVX (sv) = 0;
		734	SvOK_off (sv);
		735
		736	return 0;
		737	}
		738
		739	static MGVTBL mmap_vtbl = {
		740	0, 0, 0, 0, mmap_free
		741	};
		742
		743	/*****************************************************************************/
467		744
468	static SV *	745	static SV *
469	get_cb (SV *cb_sv)	746	get_cb (SV *cb_sv)
470	{	747	{
471	HV *st;	748	SvGETMAGIC (cb_sv);
472	GV *gvp;	749	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		750	}
		751
		752	static aio_req ecb_noinline
		753	dreq (SV *callback)
		754	{
473	CV *cv;	755	SV *cb_cv;
		756	aio_req req;
		757	int req_pri = next_pri;
		758	next_pri = EIO_PRI_DEFAULT;
474		759
475	if (!SvOK (cb_sv))	760	cb_cv = get_cb (callback);
		761
		762	req = calloc (sizeof (*req), 1);
		763	if (!req)
		764	croak ("out of memory during eio_req allocation");
		765
		766	req->callback = SvREFCNT_inc (cb_cv);
		767	req->pri = req_pri;
		768
476	return 0;	769	return req;
477
478	cv = sv_2cv (cb_sv, &st, &gvp, 0);
479
480	if (!cv)
481	croak ("IO::AIO callback must be undef or a CODE reference");
482
483	return (SV *)cv;
484	}	770	}
485		771
486	#define dREQ \	772	#define dREQ \
487	SV *cb_cv; \	773	aio_req req = dreq (callback); \
488	aio_req req; \
489	int req_pri = next_pri; \
490	next_pri = EIO_PRI_DEFAULT; \
491	\
492	cb_cv = get_cb (callback); \
493	\
494	Newz (0, req, 1, eio_req); \
495	if (!req) \
496	croak ("out of memory during eio_req allocation"); \
497	\
498	req->callback = SvREFCNT_inc (cb_cv); \
499	req->pri = req_pri
500		774
501	#define REQ_SEND \	775	#define REQ_SEND \
502	PUTBACK; \	776	PUTBACK; \
503	req_submit (req); \	777	req_submit (req); \
504	SPAGAIN; \	778	SPAGAIN; \
505	\	779	\
506	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
507	XPUSHs (req_sv (req, AIO_REQ_KLASS));	781	XPUSHs (req_sv (req, aio_req_stash));
508		782
509	static int	783	ecb_inline void
510	extract_fd (SV *fh, int wr)	784	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
511	{	785	{
512	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	786	if (expect_false (SvROK (path)))
		787	{
		788	SV *rv = SvRV (path);
		789	SV *wdob;
513		790
514	if (fd < 0)	791	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
515	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");	792	{
		793	path = AvARRAY (rv)[1];
		794	wdob = AvARRAY (rv)[0];
516		795
517	return fd;	796	if (SvOK (wdob))
		797	{
		798	*wd = SvAIO_WD (wdob);
		799	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		800	}
		801	else
		802	*wd = EIO_INVALID_WD;
		803	}
		804	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		805	{
		806	*wd = (aio_wd)(long)SvIVX (rv);
		807	*wdsv = SvREFCNT_inc_NN (rv);
		808	*ptr = ".";
		809	return; /* path set to "." */
		810	}
		811	else
		812	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		813	}
		814
		815	*pathsv = newSVsv (path);
		816	*ptr = SvPVbyte_nolen (*pathsv);
518	}	817	}
		818
		819	static void ecb_noinline
		820	req_set_path1 (aio_req req, SV *path)
		821	{
		822	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		823	}
		824
		825	static void ecb_noinline
		826	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		827	{
		828	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		829
		830	switch (SvTYPE (rv))
		831	{
		832	case SVt_PVIO:
		833	case SVt_PVLV:
		834	case SVt_PVGV:
		835	req->type = type_fh;
		836	req->sv1 = newSVsv (fh_or_path);
		837	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		838	break;
		839
		840	default:
		841	req->type = type_path;
		842	req_set_path1 (req, fh_or_path);
		843	break;
		844	}
		845	}
		846
		847	XS(boot_IO__AIO) ecb_cold;
519		848
520	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
521		850
522	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
523		852
524	BOOT:	853	BOOT:
525	{	854	{
		855	static const struct {
		856	const char *name;
		857	IV iv;
		858	} *civ, const_iv[] = {
		859	# define const_niv(name, value) { # name, (IV) value },
		860	# define const_iv(name) { # name, (IV) name },
		861	# define const_eio(name) { # name, (IV) EIO_ ## name },
		862
		863	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		864
		865	const_iv (ENOSYS)
		866	const_iv (EXDEV)
		867	const_iv (EBADR)
		868
		869	const_iv (O_RDONLY)
		870	const_iv (O_WRONLY)
		871	const_iv (O_RDWR)
		872	const_iv (O_CREAT)
		873	const_iv (O_TRUNC)
		874	const_iv (O_EXCL)
		875	const_iv (O_APPEND)
		876
		877	const_iv (O_ASYNC)
		878	const_iv (O_DIRECT)
		879	const_iv (O_NOATIME)
		880
		881	const_iv (O_CLOEXEC)
		882	const_iv (O_NOCTTY)
		883	const_iv (O_NOFOLLOW)
		884	const_iv (O_NONBLOCK)
		885	const_iv (O_EXEC)
		886	const_iv (O_SEARCH)
		887	const_iv (O_DIRECTORY)
		888	const_iv (O_DSYNC)
		889	const_iv (O_RSYNC)
		890	const_iv (O_SYNC)
		891	const_iv (O_TTY_INIT)
		892
		893	const_iv (S_IFIFO)
		894	const_iv (S_IFCHR)
		895	const_iv (S_IFBLK)
		896	const_iv (S_IFLNK)
		897	const_iv (S_IFREG)
		898	const_iv (S_IFDIR)
		899	const_iv (S_IFWHT)
		900	const_iv (S_IFSOCK)
		901	const_iv (S_IFMT)
		902
		903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		909
		910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		915
		916	const_iv (ST_RDONLY)
		917	const_iv (ST_NOSUID)
		918	const_iv (ST_NODEV)
		919	const_iv (ST_NOEXEC)
		920	const_iv (ST_SYNCHRONOUS)
		921	const_iv (ST_MANDLOCK)
		922	const_iv (ST_WRITE)
		923	const_iv (ST_APPEND)
		924	const_iv (ST_IMMUTABLE)
		925	const_iv (ST_NOATIME)
		926	const_iv (ST_NODIRATIME)
		927	const_iv (ST_RELATIME)
		928
		929	const_iv (PROT_NONE)
		930	const_iv (PROT_EXEC)
		931	const_iv (PROT_READ)
		932	const_iv (PROT_WRITE)
		933
		934	/*const_iv (MAP_FIXED)*/
		935	const_iv (MAP_PRIVATE)
		936	const_iv (MAP_SHARED)
		937	const_iv (MAP_ANONYMOUS)
		938
		939	/* linuxish */
		940	const_iv (MAP_HUGETLB)
		941	const_iv (MAP_LOCKED)
		942	const_iv (MAP_NORESERVE)
		943	const_iv (MAP_POPULATE)
		944	const_iv (MAP_NONBLOCK)
		945
		946	const_iv (FIEMAP_FLAG_SYNC)
		947	const_iv (FIEMAP_FLAG_XATTR)
		948	const_iv (FIEMAP_FLAGS_COMPAT)
		949	const_iv (FIEMAP_EXTENT_LAST)
		950	const_iv (FIEMAP_EXTENT_UNKNOWN)
		951	const_iv (FIEMAP_EXTENT_DELALLOC)
		952	const_iv (FIEMAP_EXTENT_ENCODED)
		953	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		954	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		955	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		956	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		957	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		958	const_iv (FIEMAP_EXTENT_MERGED)
		959	const_iv (FIEMAP_EXTENT_SHARED)
		960
		961	const_iv (SPLICE_F_MOVE)
		962	const_iv (SPLICE_F_NONBLOCK)
		963	const_iv (SPLICE_F_MORE)
		964	const_iv (SPLICE_F_GIFT)
		965
		966	const_iv (SEEK_DATA)
		967	const_iv (SEEK_HOLE)
		968
		969	/* libeio constants */
		970	const_eio (SEEK_SET)
		971	const_eio (SEEK_CUR)
		972	const_eio (SEEK_END)
		973
		974	const_eio (MCL_FUTURE)
		975	const_eio (MCL_CURRENT)
		976
		977	const_eio (MS_ASYNC)
		978	const_eio (MS_INVALIDATE)
		979	const_eio (MS_SYNC)
		980
		981	const_eio (MT_MODIFY)
		982
		983	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		984	const_eio (SYNC_FILE_RANGE_WRITE)
		985	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		986
		987	const_eio (FALLOC_FL_KEEP_SIZE)
		988	const_eio (FALLOC_FL_PUNCH_HOLE)
		989
		990	const_eio (READDIR_DENTS)
		991	const_eio (READDIR_DIRS_FIRST)
		992	const_eio (READDIR_STAT_ORDER)
		993	const_eio (READDIR_FOUND_UNKNOWN)
		994
		995	const_eio (DT_UNKNOWN)
		996	const_eio (DT_FIFO)
		997	const_eio (DT_CHR)
		998	const_eio (DT_DIR)
		999	const_eio (DT_BLK)
		1000	const_eio (DT_REG)
		1001	const_eio (DT_LNK)
		1002	const_eio (DT_SOCK)
		1003	const_eio (DT_WHT)
		1004	};
		1005
526	stash = gv_stashpv ("IO::AIO", 1);	1006	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1007	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1008	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1009	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
527		1010
528	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1011	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
529	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1012	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
530	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
531	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
532	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
533	#ifndef _WIN32
534	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
535	#endif
536	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
537	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE));
538	newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE));
539	newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER));
540		1013
541	create_respipe ();	1014	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
542		1015
543	if (eio_init (want_poll, done_poll) < 0)	1016	reinit ();
544	croak ("IO::AIO: unable to initialise eio library");
545
546	/* atfork child called in fifo order, so before eio's handler */
547	X_THREAD_ATFORK (0, 0, atfork_child);
548	}	1017	}
549		1018
550	void	1019	void
		1020	reinit ()
		1021	PROTOTYPE:
		1022
		1023	void
551	max_poll_reqs (int nreqs)	1024	max_poll_reqs (unsigned int nreqs)
552	PROTOTYPE: $	1025	PROTOTYPE: $
553	CODE:	1026	CODE:
554	eio_set_max_poll_reqs (nreqs);	1027	eio_set_max_poll_reqs (nreqs);
555		1028
556	void	1029	void
…		…
558	PROTOTYPE: $	1031	PROTOTYPE: $
559	CODE:	1032	CODE:
560	eio_set_max_poll_time (nseconds);	1033	eio_set_max_poll_time (nseconds);
561		1034
562	void	1035	void
563	min_parallel (int nthreads)	1036	min_parallel (unsigned int nthreads)
564	PROTOTYPE: $	1037	PROTOTYPE: $
565	CODE:	1038	CODE:
566	eio_set_min_parallel (nthreads);	1039	eio_set_min_parallel (nthreads);
567		1040
568	void	1041	void
569	max_parallel (int nthreads)	1042	max_parallel (unsigned int nthreads)
570	PROTOTYPE: $	1043	PROTOTYPE: $
571	CODE:	1044	CODE:
572	eio_set_max_parallel (nthreads);	1045	eio_set_max_parallel (nthreads);
573		1046
574	void	1047	void
575	max_idle (int nthreads)	1048	max_idle (unsigned int nthreads)
576	PROTOTYPE: $	1049	PROTOTYPE: $
577	CODE:	1050	CODE:
578	eio_set_max_idle (nthreads);	1051	eio_set_max_idle (nthreads);
579		1052
580	void	1053	void
		1054	idle_timeout (unsigned int seconds)
		1055	PROTOTYPE: $
		1056	CODE:
		1057	eio_set_idle_timeout (seconds);
		1058
		1059	void
581	max_outstanding (int maxreqs)	1060	max_outstanding (unsigned int maxreqs)
582	PROTOTYPE: $	1061	PROTOTYPE: $
583	CODE:	1062	CODE:
584	max_outstanding = maxreqs;	1063	max_outstanding = maxreqs;
585		1064
586	void	1065	void
		1066	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1067	PPCODE:
		1068	{
		1069	dREQ;
		1070
		1071	req->type = EIO_WD_OPEN;
		1072	req_set_path1 (req, pathname);
		1073
		1074	REQ_SEND;
		1075	}
		1076
		1077	void
587	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1078	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
588	PROTOTYPE: $$$;$
589	PPCODE:	1079	PPCODE:
590	{	1080	{
591	dREQ;	1081	dREQ;
592		1082
593	req->type = EIO_OPEN;	1083	req->type = EIO_OPEN;
594	req->sv1 = newSVsv (pathname);	1084	req_set_path1 (req, pathname);
595	req->ptr1 = SvPVbyte_nolen (req->sv1);
596	req->int1 = flags;	1085	req->int1 = flags;
597	req->int2 = mode;	1086	req->int2 = mode;
598		1087
599	REQ_SEND;	1088	REQ_SEND;
600	}	1089	}
601		1090
602	void	1091	void
603	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1092	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
604	PROTOTYPE: $;$
605	ALIAS:	1093	ALIAS:
606	aio_fsync = EIO_FSYNC	1094	aio_fsync = EIO_FSYNC
607	aio_fdatasync = EIO_FDATASYNC	1095	aio_fdatasync = EIO_FDATASYNC
		1096	aio_syncfs = EIO_SYNCFS
608	PPCODE:	1097	PPCODE:
609	{	1098	{
610	int fd = extract_fd (fh, 0);	1099	int fd = s_fileno_croak (fh, 0);
611	dREQ;	1100	dREQ;
612		1101
613	req->type = ix;	1102	req->type = ix;
614	req->sv1 = newSVsv (fh);	1103	req->sv1 = newSVsv (fh);
615	req->int1 = fd;	1104	req->int1 = fd;
616		1105
617	REQ_SEND (req);	1106	REQ_SEND;
618	}	1107	}
619		1108
620	void	1109	void
621	aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)	1110	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
622	PROTOTYPE: $$$$;$
623	PPCODE:	1111	PPCODE:
624	{	1112	{
625	int fd = extract_fd (fh, 0);	1113	int fd = s_fileno_croak (fh, 0);
626	dREQ;	1114	dREQ;
627		1115
628	req->type = EIO_SYNC_FILE_RANGE;	1116	req->type = EIO_SYNC_FILE_RANGE;
629	req->sv1 = newSVsv (fh);	1117	req->sv1 = newSVsv (fh);
630	req->int1 = fd;	1118	req->int1 = fd;
631	req->offs = SvVAL64 (offset);	1119	req->offs = offset;
632	req->size = SvVAL64 (nbytes);	1120	req->size = nbytes;
633	req->int2 = flags;	1121	req->int2 = flags;
634		1122
635	REQ_SEND (req);	1123	REQ_SEND;
		1124	}
		1125
		1126	void
		1127	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1128	PPCODE:
		1129	{
		1130	int fd = s_fileno_croak (fh, 0);
		1131	dREQ;
		1132
		1133	req->type = EIO_FALLOCATE;
		1134	req->sv1 = newSVsv (fh);
		1135	req->int1 = fd;
		1136	req->int2 = mode;
		1137	req->offs = offset;
		1138	req->size = len;
		1139
		1140	REQ_SEND;
636	}	1141	}
637		1142
638	void	1143	void
639	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1144	aio_close (SV *fh, SV *callback=&PL_sv_undef)
640	PROTOTYPE: $;$
641	PPCODE:	1145	PPCODE:
642	{	1146	{
643	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1147	static int close_fd = -1; /* dummy fd to close fds via dup2 */
644	int fd = extract_fd (fh, 0);	1148	int fd = s_fileno_croak (fh, 0);
645	dREQ;	1149	dREQ;
646		1150
647	if (close_pipe < 0)	1151	if (expect_false (close_fd < 0))
648	{	1152	{
649	int pipefd [2];	1153	int pipefd [2];
650		1154
		1155	if (
		1156	#ifdef _WIN32
		1157	_pipe (pipefd, 1, _O_BINARY) < 0
		1158	#else
651	if (pipe (pipefd) < 0	1159	pipe (pipefd) < 0
652	|| close (pipefd [1]) < 0
653	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1160	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1161	#endif
		1162	|| close (pipefd [1]) < 0
		1163	)
654	abort (); /*D*/	1164	abort (); /*D*/
655		1165
656	close_pipe = pipefd [0];	1166	close_fd = pipefd [0];
657	}	1167	}
658		1168
659	req->type = EIO_DUP2;	1169	req->type = EIO_DUP2;
660	req->int1 = close_pipe;	1170	req->int1 = close_fd;
661	req->sv2 = newSVsv (fh);	1171	req->sv2 = newSVsv (fh);
662	req->int2 = fd;	1172	req->int2 = fd;
663		1173
664	REQ_SEND (req);	1174	REQ_SEND;
		1175	}
		1176
		1177	void
		1178	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1179	PPCODE:
		1180	{
		1181	int fd = s_fileno_croak (fh, 0);
		1182	dREQ;
		1183
		1184	req->type = EIO_SEEK;
		1185	req->sv1 = newSVsv (fh);
		1186	req->int1 = fd;
		1187	req->offs = SvVAL64 (offset);
		1188	req->int2 = whence;
		1189
		1190	REQ_SEND;
665	}	1191	}
666		1192
667	void	1193	void
668	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1194	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
669	ALIAS:	1195	ALIAS:
670	aio_read = EIO_READ	1196	aio_read = EIO_READ
671	aio_write = EIO_WRITE	1197	aio_write = EIO_WRITE
672	PROTOTYPE: $$$$$;$
673	PPCODE:	1198	PPCODE:
674	{	1199	{
675	STRLEN svlen;	1200	STRLEN svlen;
676	int fd = extract_fd (fh, ix == EIO_WRITE);	1201	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
677	char *svptr = SvPVbyte (data, svlen);	1202	char *svptr = SvPVbyte (data, svlen);
678	UV len = SvUV (length);	1203	UV len = SvUV (length);
679		1204
680	if (dataoffset < 0)	1205	if (dataoffset < 0)
681	dataoffset += svlen;	1206	dataoffset += svlen;
…		…
691	}	1216	}
692	else	1217	else
693	{	1218	{
694	/* read: check type and grow scalar as necessary */	1219	/* read: check type and grow scalar as necessary */
695	SvUPGRADE (data, SVt_PV);	1220	SvUPGRADE (data, SVt_PV);
		1221	if (SvLEN (data) >= SvCUR (data))
696	svptr = SvGROW (data, len + dataoffset + 1);	1222	svptr = SvGROW (data, len + dataoffset + 1);
		1223	else if (SvCUR (data) < len + dataoffset)
		1224	croak ("length + dataoffset outside of scalar, and cannot grow");
697	}	1225	}
698
699	if (len < 0)
700	croak ("length must not be negative");
701		1226
702	{	1227	{
703	dREQ;	1228	dREQ;
704		1229
705	req->type = ix;	1230	req->type = ix;
…		…
720	REQ_SEND;	1245	REQ_SEND;
721	}	1246	}
722	}	1247	}
723		1248
724	void	1249	void
725	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1250	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
726	PROTOTYPE: $$;$	1251	ALIAS:
		1252	aio_readlink = EIO_READLINK
		1253	aio_realpath = EIO_REALPATH
727	PPCODE:	1254	PPCODE:
728	{	1255	{
729	SV *data;
730	dREQ;	1256	dREQ;
731		1257
732	req->type = EIO_READLINK;	1258	req->type = ix;
733	req->sv1 = newSVsv (path);	1259	req_set_path1 (req, pathname);
734	req->ptr1 = SvPVbyte_nolen (req->sv1);
735		1260
736	REQ_SEND;	1261	REQ_SEND;
737	}	1262	}
738		1263
739	void	1264	void
740	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1265	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
741	PROTOTYPE: $$$$;$
742	PPCODE:	1266	PPCODE:
743	{	1267	{
744	int ifd = extract_fd (in_fh , 0);	1268	int ifd = s_fileno_croak (in_fh , 0);
745	int ofd = extract_fd (out_fh, 0);	1269	int ofd = s_fileno_croak (out_fh, 1);
746	dREQ;	1270	dREQ;
747		1271
748	req->type = EIO_SENDFILE;	1272	req->type = EIO_SENDFILE;
749	req->sv1 = newSVsv (out_fh);	1273	req->sv1 = newSVsv (out_fh);
750	req->int1 = ofd;	1274	req->int1 = ofd;
751	req->sv2 = newSVsv (in_fh);	1275	req->sv2 = newSVsv (in_fh);
752	req->int2 = ifd;	1276	req->int2 = ifd;
753	req->offs = SvVAL64 (in_offset);	1277	req->offs = in_offset;
754	req->size = length;	1278	req->size = length;
755		1279
756	REQ_SEND;	1280	REQ_SEND;
757	}	1281	}
758		1282
759	void	1283	void
760	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1284	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
761	PROTOTYPE: $$$;$
762	PPCODE:	1285	PPCODE:
763	{	1286	{
764	int fd = extract_fd (fh, 0);	1287	int fd = s_fileno_croak (fh, 0);
765	dREQ;	1288	dREQ;
766		1289
767	req->type = EIO_READAHEAD;	1290	req->type = EIO_READAHEAD;
768	req->sv1 = newSVsv (fh);	1291	req->sv1 = newSVsv (fh);
769	req->int1 = fd;	1292	req->int1 = fd;
770	req->offs = SvVAL64 (offset);	1293	req->offs = offset;
771	req->size = length;	1294	req->size = length;
772		1295
773	REQ_SEND;	1296	REQ_SEND;
774	}	1297	}
775		1298
776	void	1299	void
777	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1300	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
778	ALIAS:	1301	ALIAS:
779	aio_stat = EIO_STAT	1302	aio_stat = EIO_STAT
780	aio_lstat = EIO_LSTAT	1303	aio_lstat = EIO_LSTAT
		1304	aio_statvfs = EIO_STATVFS
781	PPCODE:	1305	PPCODE:
782	{	1306	{
783	dREQ;	1307	dREQ;
784		1308
785	req->sv1 = newSVsv (fh_or_path);	1309	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
786
787	if (SvPOK (req->sv1))
788	{
789	req->type = ix;
790	req->ptr1 = SvPVbyte_nolen (req->sv1);
791	}
792	else
793	{
794	req->type = EIO_FSTAT;
795	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
796	}
797		1310
798	REQ_SEND;	1311	REQ_SEND;
799	}	1312	}
		1313
		1314	UV
		1315	major (UV dev)
		1316	ALIAS:
		1317	minor = 1
		1318	CODE:
		1319	RETVAL = ix ? major (dev) : minor (dev);
		1320	OUTPUT:
		1321	RETVAL
		1322
		1323	UV
		1324	makedev (UV maj, UV min)
		1325	CODE:
		1326	RETVAL = makedev (maj, min);
		1327	OUTPUT:
		1328	RETVAL
800		1329
801	void	1330	void
802	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1331	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
803	PPCODE:	1332	PPCODE:
804	{	1333	{
805	dREQ;	1334	dREQ;
806		1335
807	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1336	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
808	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1337	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
809	req->sv1 = newSVsv (fh_or_path);	1338	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
810
811	if (SvPOK (req->sv1))
812	{
813	req->type = EIO_UTIME;
814	req->ptr1 = SvPVbyte_nolen (req->sv1);
815	}
816	else
817	{
818	req->type = EIO_FUTIME;
819	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
820	}
821		1339
822	REQ_SEND;	1340	REQ_SEND;
823	}	1341	}
824		1342
825	void	1343	void
826	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1344	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
827	PPCODE:	1345	PPCODE:
828	{	1346	{
829	dREQ;	1347	dREQ;
830		1348
831	req->sv1 = newSVsv (fh_or_path);
832	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1349	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
833		1350	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
834	if (SvPOK (req->sv1))
835	{
836	req->type = EIO_TRUNCATE;
837	req->ptr1 = SvPVbyte_nolen (req->sv1);
838	}
839	else
840	{
841	req->type = EIO_FTRUNCATE;
842	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
843	}
844		1351
845	REQ_SEND;	1352	REQ_SEND;
846	}	1353	}
847		1354
848	void	1355	void
849	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1356	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
850	ALIAS:
851	aio_chmod = EIO_CHMOD
852	aio_mkdir = EIO_MKDIR
853	PPCODE:	1357	PPCODE:
854	{	1358	{
855	dREQ;	1359	dREQ;
856		1360
857	req->int2 = mode;	1361	req->int2 = mode;
858	req->sv1 = newSVsv (fh_or_path);	1362	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
859
860	if (SvPOK (req->sv1))
861	{
862	req->type = ix;
863	req->ptr1 = SvPVbyte_nolen (req->sv1);
864	}
865	else
866	{
867	req->type = EIO_FCHMOD;
868	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
869	}
870		1363
871	REQ_SEND;	1364	REQ_SEND;
872	}	1365	}
873		1366
874	void	1367	void
…		…
877	{	1370	{
878	dREQ;	1371	dREQ;
879		1372
880	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1373	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
881	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1374	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
882	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
883		1376
884	if (SvPOK (req->sv1))	1377	REQ_SEND;
885	{	1378	}
		1379
		1380	void
		1381	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1382	PPCODE:
		1383	{
		1384	dREQ;
		1385
		1386	req->type = EIO_READDIR;
		1387	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1388
		1389	if (flags & EIO_READDIR_DENTS)
		1390	req->int1 |= EIO_READDIR_CUSTOM2;
		1391
		1392	req_set_path1 (req, pathname);
		1393
		1394	REQ_SEND;
		1395	}
		1396
		1397	void
		1398	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1399	PPCODE:
		1400	{
		1401	dREQ;
		1402
886	req->type = EIO_CHOWN;	1403	req->type = EIO_MKDIR;
887	req->ptr1 = SvPVbyte_nolen (req->sv1);	1404	req->int2 = mode;
888	}	1405	req_set_path1 (req, pathname);
889	else
890	{
891	req->type = EIO_FCHOWN;
892	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
893	}
894		1406
895	REQ_SEND;	1407	REQ_SEND;
896	}	1408	}
897		1409
898	void	1410	void
…		…
904	PPCODE:	1416	PPCODE:
905	{	1417	{
906	dREQ;	1418	dREQ;
907		1419
908	req->type = ix;	1420	req->type = ix;
909	req->sv1 = newSVsv (pathname);	1421	req_set_path1 (req, pathname);
910	req->ptr1 = SvPVbyte_nolen (req->sv1);
911		1422
912	REQ_SEND;	1423	REQ_SEND;
913	}	1424	}
914		1425
915	void	1426	void
…		…
918	aio_link = EIO_LINK	1429	aio_link = EIO_LINK
919	aio_symlink = EIO_SYMLINK	1430	aio_symlink = EIO_SYMLINK
920	aio_rename = EIO_RENAME	1431	aio_rename = EIO_RENAME
921	PPCODE:	1432	PPCODE:
922	{	1433	{
		1434	eio_wd wd2 = 0;
923	dREQ;	1435	dREQ;
924		1436
925	req->type = ix;	1437	req->type = ix;
926	req->sv1 = newSVsv (oldpath);	1438	req_set_path1 (req, oldpath);
927	req->ptr1 = SvPVbyte_nolen (req->sv1);	1439	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
928	req->sv2 = newSVsv (newpath);	1440	req->int3 = (long)wd2;
929	req->ptr2 = SvPVbyte_nolen (req->sv2);
930		1441
931	REQ_SEND;	1442	REQ_SEND;
932	}	1443	}
933		1444
934	void	1445	void
…		…
936	PPCODE:	1447	PPCODE:
937	{	1448	{
938	dREQ;	1449	dREQ;
939		1450
940	req->type = EIO_MKNOD;	1451	req->type = EIO_MKNOD;
941	req->sv1 = newSVsv (pathname);
942	req->ptr1 = SvPVbyte_nolen (req->sv1);
943	req->int2 = (mode_t)mode;	1452	req->int2 = (mode_t)mode;
944	req->offs = dev;	1453	req->offs = dev;
		1454	req_set_path1 (req, pathname);
945		1455
946	REQ_SEND;	1456	REQ_SEND;
947	}	1457	}
948		1458
949	void	1459	void
		1460	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1461	ALIAS:
		1462	aio_mtouch = EIO_MTOUCH
		1463	aio_msync = EIO_MSYNC
		1464	PPCODE:
		1465	{
		1466	STRLEN svlen;
		1467	char *svptr = SvPVbyte (data, svlen);
		1468	UV len = SvUV (length);
		1469
		1470	if (offset < 0)
		1471	offset += svlen;
		1472
		1473	if (offset < 0 || offset > svlen)
		1474	croak ("offset outside of scalar");
		1475
		1476	if (!SvOK (length) || len + offset > svlen)
		1477	len = svlen - offset;
		1478
		1479	{
		1480	dREQ;
		1481
		1482	req->type = ix;
		1483	req->sv2 = SvREFCNT_inc (data);
		1484	req->ptr2 = (char *)svptr + offset;
		1485	req->size = len;
		1486	req->int1 = flags;
		1487
		1488	REQ_SEND;
		1489	}
		1490	}
		1491
		1492	void
		1493	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1494	PPCODE:
		1495	{
		1496	STRLEN svlen;
		1497	char *svptr = SvPVbyte (data, svlen);
		1498	UV len = SvUV (length);
		1499
		1500	if (offset < 0)
		1501	offset += svlen;
		1502
		1503	if (offset < 0 || offset > svlen)
		1504	croak ("offset outside of scalar");
		1505
		1506	if (!SvOK (length) || len + offset > svlen)
		1507	len = svlen - offset;
		1508
		1509	{
		1510	dREQ;
		1511
		1512	req->type = EIO_MLOCK;
		1513	req->sv2 = SvREFCNT_inc (data);
		1514	req->ptr2 = (char *)svptr + offset;
		1515	req->size = len;
		1516
		1517	REQ_SEND;
		1518	}
		1519	}
		1520
		1521	void
		1522	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1523	PPCODE:
		1524	{
		1525	dREQ;
		1526
		1527	req->type = EIO_MLOCKALL;
		1528	req->int1 = flags;
		1529
		1530	REQ_SEND;
		1531	}
		1532
		1533	void
		1534	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1535	PPCODE:
		1536	{
		1537	int fd = s_fileno_croak (fh, 0);
		1538	dREQ;
		1539
		1540	req->type = EIO_CUSTOM;
		1541	req->sv1 = newSVsv (fh);
		1542	req->int1 = fd;
		1543
		1544	req->feed = fiemap;
		1545	#if HAVE_FIEMAP
		1546	/* keep our fingers crossed that the next two types are 64 bit */
		1547	req->offs = start;
		1548	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1549	req->int2 = flags;
		1550	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1551	#endif
		1552
		1553	REQ_SEND;
		1554	}
		1555
		1556	void
950	aio_busy (double delay, SV *callback=&PL_sv_undef)	1557	aio_busy (double delay, SV *callback=&PL_sv_undef)
951	PPCODE:	1558	PPCODE:
952	{	1559	{
953	dREQ;	1560	dREQ;
954		1561
…		…
958	REQ_SEND;	1565	REQ_SEND;
959	}	1566	}
960		1567
961	void	1568	void
962	aio_group (SV *callback=&PL_sv_undef)	1569	aio_group (SV *callback=&PL_sv_undef)
963	PROTOTYPE: ;$
964	PPCODE:	1570	PPCODE:
965	{	1571	{
966	dREQ;	1572	dREQ;
967		1573
968	req->type = EIO_GROUP;	1574	req->type = EIO_GROUP;
969		1575
970	req_submit (req);	1576	req_submit (req);
971	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1577	XPUSHs (req_sv (req, aio_grp_stash));
972	}	1578	}
973		1579
974	void	1580	void
975	aio_nop (SV *callback=&PL_sv_undef)	1581	aio_nop (SV *callback=&PL_sv_undef)
976	ALIAS:	1582	ALIAS:
…		…
985	REQ_SEND;	1591	REQ_SEND;
986	}	1592	}
987		1593
988	int	1594	int
989	aioreq_pri (int pri = 0)	1595	aioreq_pri (int pri = 0)
990	PROTOTYPE: ;$
991	CODE:	1596	CODE:
992	RETVAL = next_pri;	1597	RETVAL = next_pri;
993	if (items > 0)	1598	if (items > 0)
994	{	1599	{
995	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1600	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1007	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1612	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1008	next_pri = nice;	1613	next_pri = nice;
1009		1614
1010	void	1615	void
1011	flush ()	1616	flush ()
1012	PROTOTYPE:
1013	CODE:	1617	CODE:
1014	while (eio_nreqs ())	1618	while (eio_nreqs ())
1015	{	1619	{
1016	poll_wait ();	1620	poll_wait ();
1017	poll_cb ();	1621	poll_cb ();
1018	}	1622	}
1019		1623
1020	int	1624	int
1021	poll()	1625	poll ()
1022	PROTOTYPE:
1023	CODE:	1626	CODE:
1024	poll_wait ();	1627	poll_wait ();
1025	RETVAL = poll_cb ();	1628	RETVAL = poll_cb ();
1026	OUTPUT:	1629	OUTPUT:
1027	RETVAL	1630	RETVAL
1028		1631
1029	int	1632	int
1030	poll_fileno()	1633	poll_fileno ()
1031	PROTOTYPE:
1032	CODE:	1634	CODE:
1033	RETVAL = respipe [0];	1635	RETVAL = s_epipe_fd (&respipe);
1034	OUTPUT:	1636	OUTPUT:
1035	RETVAL	1637	RETVAL
1036		1638
1037	int	1639	int
1038	poll_cb(...)	1640	poll_cb (...)
1039	PROTOTYPE:	1641	PROTOTYPE:
1040	CODE:	1642	CODE:
1041	RETVAL = poll_cb ();	1643	RETVAL = poll_cb ();
1042	OUTPUT:	1644	OUTPUT:
1043	RETVAL	1645	RETVAL
1044		1646
1045	void	1647	void
1046	poll_wait()	1648	poll_wait ()
1047	PROTOTYPE:
1048	CODE:	1649	CODE:
1049	poll_wait ();	1650	poll_wait ();
1050		1651
1051	int	1652	int
1052	nreqs()	1653	nreqs ()
1053	PROTOTYPE:
1054	CODE:	1654	CODE:
1055	RETVAL = eio_nreqs ();	1655	RETVAL = eio_nreqs ();
1056	OUTPUT:	1656	OUTPUT:
1057	RETVAL	1657	RETVAL
1058		1658
1059	int	1659	int
1060	nready()	1660	nready ()
1061	PROTOTYPE:
1062	CODE:	1661	CODE:
1063	RETVAL = eio_nready ();	1662	RETVAL = eio_nready ();
1064	OUTPUT:	1663	OUTPUT:
1065	RETVAL	1664	RETVAL
1066		1665
1067	int	1666	int
1068	npending()	1667	npending ()
1069	PROTOTYPE:
1070	CODE:	1668	CODE:
1071	RETVAL = eio_npending ();	1669	RETVAL = eio_npending ();
1072	OUTPUT:	1670	OUTPUT:
1073	RETVAL	1671	RETVAL
1074		1672
1075	int	1673	int
1076	nthreads()	1674	nthreads ()
1077	PROTOTYPE:
1078	CODE:	1675	CODE:
1079	RETVAL = eio_nthreads ();	1676	RETVAL = eio_nthreads ();
1080	OUTPUT:	1677	OUTPUT:
1081	RETVAL	1678	RETVAL
1082		1679
		1680	int
		1681	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1682	CODE:
		1683	RETVAL = posix_fadvise (fh, offset, length, advice);
		1684	OUTPUT:
		1685	RETVAL
		1686
		1687	IV
		1688	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1689	CODE:
		1690	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1691	OUTPUT:
		1692	RETVAL
		1693
		1694	void
		1695	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1696	PPCODE:
		1697	sv_unmagic (scalar, MMAP_MAGIC);
		1698	{
		1699	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1700	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1701	if (addr == (void *)-1)
		1702	XSRETURN_NO;
		1703
		1704	sv_force_normal (scalar);
		1705
		1706	/* we store the length in mg_obj, as namlen is I32 :/ */
		1707	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1708	->mg_obj = (SV *)length;
		1709
		1710	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1711
		1712	if (!(prot & PROT_WRITE))
		1713	SvREADONLY_on (scalar);
		1714
		1715	if (SvLEN (scalar))
		1716	Safefree (SvPVX (scalar));
		1717
		1718	SvPVX (scalar) = (char *)addr;
		1719	SvCUR_set (scalar, length);
		1720	SvLEN_set (scalar, 0);
		1721	SvPOK_only (scalar);
		1722
		1723	XSRETURN_YES;
		1724	}
		1725
		1726	void
		1727	munmap (SV *scalar)
		1728	CODE:
		1729	sv_unmagic (scalar, MMAP_MAGIC);
		1730
		1731	int
		1732	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1733	ALIAS:
		1734	mprotect = 1
		1735	CODE:
		1736	{
		1737	STRLEN svlen;
		1738	void *addr = SvPVbyte (scalar, svlen);
		1739	size_t len = SvUV (length);
		1740
		1741	if (offset < 0)
		1742	offset += svlen;
		1743
		1744	if (offset < 0 || offset > svlen)
		1745	croak ("offset outside of scalar");
		1746
		1747	if (!SvOK (length) || len + offset > svlen)
		1748	len = svlen - offset;
		1749
		1750	addr = (void *)(((intptr_t)addr) + offset);
		1751	eio_page_align (&addr, &len);
		1752
		1753	switch (ix)
		1754	{
		1755	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1756	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1757	}
		1758	}
		1759	OUTPUT:
		1760	RETVAL
		1761
		1762	int
		1763	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1764	CODE:
		1765	{
		1766	STRLEN svlen;
		1767	void *addr = SvPVbyte (scalar, svlen);
		1768	size_t len = SvUV (length);
		1769
		1770	if (offset < 0)
		1771	offset += svlen;
		1772
		1773	if (offset < 0 || offset > svlen)
		1774	croak ("offset outside of scalar");
		1775
		1776	if (!SvOK (length) || len + offset > svlen)
		1777	len = svlen - offset;
		1778
		1779	addr = (void *)(((intptr_t)addr) + offset);
		1780	eio_page_align (&addr, &len);
		1781	#if _POSIX_MEMLOCK_RANGE
		1782	RETVAL = munlock (addr, len);
		1783	#else
		1784	RETVAL = EIO_ENOSYS ();
		1785	#endif
		1786	}
		1787	OUTPUT:
		1788	RETVAL
		1789
		1790	int
		1791	munlockall ()
		1792	CODE:
		1793	#if _POSIX_MEMLOCK
		1794	munlockall ();
		1795	#else
		1796	RETVAL = EIO_ENOSYS ();
		1797	#endif
		1798	OUTPUT:
		1799	RETVAL
		1800
		1801	int
		1802	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1803	CODE:
		1804	{
		1805	#if HAVE_LINUX_SPLICE
		1806	loff_t off_in_, off_out_;
		1807	RETVAL = splice (
		1808	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1809	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1810	length, flags
		1811	);
		1812	#else
		1813	RETVAL = EIO_ENOSYS ();
		1814	#endif
		1815	}
		1816	OUTPUT:
		1817	RETVAL
		1818
		1819	int
		1820	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1821	CODE:
		1822	#if HAVE_LINUX_SPLICE
		1823	RETVAL = tee (rfh, wfh, length, flags);
		1824	#else
		1825	RETVAL = EIO_ENOSYS ();
		1826	#endif
		1827	OUTPUT:
		1828	RETVAL
		1829
1083	void _on_next_submit (SV *cb)	1830	void _on_next_submit (SV *cb)
1084	CODE:	1831	CODE:
1085	SvREFCNT_dec (on_next_submit);	1832	SvREFCNT_dec (on_next_submit);
1086	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1833	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1087		1834
1088	PROTOTYPES: DISABLE	1835	PROTOTYPES: DISABLE
1089		1836
		1837	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1838
		1839	BOOT:
		1840	{
		1841	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1842	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1843	}
		1844
		1845	void
		1846	DESTROY (SV *self)
		1847	CODE:
		1848	{
		1849	aio_wd wd = SvAIO_WD (self);
		1850	#if HAVE_AT
		1851	{
		1852	SV *callback = &PL_sv_undef;
		1853	dREQ; /* clobbers next_pri :/ */
		1854	next_pri = req->pri; /* restore next_pri */
		1855	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1856	req->type = EIO_WD_CLOSE;
		1857	req->wd = wd;
		1858	REQ_SEND;
		1859	}
		1860	#else
		1861	eio_wd_close_sync (wd);
		1862	#endif
		1863	}
		1864
1090	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1865	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1091		1866
1092	void	1867	void
1093	cancel (aio_req_ornot req)	1868	cancel (aio_req_ornot req)
1094	CODE:	1869	CODE:
…		…
1101	if (GIMME_V != G_VOID)	1876	if (GIMME_V != G_VOID)
1102	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1877	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1103		1878
1104	if (items > 1)	1879	if (items > 1)
1105	{	1880	{
1106	SV *cb_cv = get_cb (callback);	1881	SV *cb_cv =get_cb (callback);
1107		1882
1108	SvREFCNT_dec (req->callback);	1883	SvREFCNT_dec (req->callback);
1109	req->callback = SvREFCNT_inc (cb_cv);	1884	req->callback = SvREFCNT_inc (cb_cv);
1110	}	1885	}
1111	}	1886	}
…		…
1148	AV *av;	1923	AV *av;
1149		1924
1150	grp->errorno = errno;	1925	grp->errorno = errno;
1151		1926
1152	av = newAV ();	1927	av = newAV ();
		1928	av_extend (av, items - 1);
1153		1929
1154	for (i = 1; i < items; ++i )	1930	for (i = 1; i < items; ++i )
1155	av_push (av, newSVsv (ST (i)));	1931	av_push (av, newSVsv (ST (i)));
1156		1932
1157	SvREFCNT_dec (grp->sv1);	1933	SvREFCNT_dec (grp->sv1);

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