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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.117 by root, Sat May 10 20:02:09 2008 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
		33	/* perl namespace pollution */
		34	#undef VERSION
		35
		36	/* perl stupidly overrides readdir and maybe others */
		37	/* with thread-unsafe versions, imagine that :( */
		38	#undef readdir
		39	#undef opendir
		40	#undef closedir
		41
18	#ifdef _WIN32	42	#ifdef _WIN32
19		43
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
25	# undef open	48	#undef open
26	# undef read	49	#undef read
27	# undef write	50	#undef write
28	# undef send	51	#undef send
29	# undef recv	52	#undef recv
30	# undef stat	53	#undef stat
		54	#undef lstat
31	# undef fstat	55	#undef fstat
32	# define lstat stat
33	# undef truncate	56	#undef truncate
34	# undef ftruncate	57	#undef ftruncate
35	# undef open	58	#undef open
		59	#undef link
36	# undef close	60	#undef close
37	# undef unlink	61	#undef unlink
		62	#undef mkdir
38	# undef rmdir	63	#undef rmdir
39	# undef rename	64	#undef rename
40	# undef lseek	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
41		75
42	# define chown(a,b,c) (errno = ENOSYS, -1)	76	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	77	#define EIO_STRUCT_STATI64
44	# define fchmod(a,b) (errno = ENOSYS, -1)
45	# define symlink(a,b) (errno = ENOSYS, -1)
46	# define readlink(a,b,c) (errno = ENOSYS, -1)
47	# define mknod(a,b,c) (errno = ENOSYS, -1)
48	# define truncate(a,b) (errno = ENOSYS, -1)
49	# define ftruncate(fd,o) chsize ((fd), (o))
50	# define fsync(fd) _commit (fd)
51	# define opendir(fd) (errno = ENOSYS, 0)
52	# define readdir(fd) (errno = ENOSYS, -1)
53	# define closedir(fd) (errno = ENOSYS, -1)
54	# define mkdir(a,b) mkdir (a)
55		78
56	#else	79	#else
57		80
58	# include <sys/time.h>	81	#include <sys/time.h>
59	# include <sys/select.h>	82	#include <sys/select.h>
60	# include <unistd.h>	83	#include <unistd.h>
61	# include <utime.h>	84	#include <utime.h>
62	# include <signal.h>	85	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		86
65	#endif
66
67	#define EIO_STRUCT_STAT Stat_t	87	#define EIO_STRUCT_STAT Stat_t
68		88
69	/* use NV for 32 bit perls as it allows larger offsets */	89	#endif
70	#if IVSIZE >= 8	90
71	# define SvVAL64 SvIV	91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
72	#else	95	#else
73	# define SvVAL64 SvNV	96	# define expect(expr,value) (expr)
74	#endif	97	#endif
75		98
76	static HV *stash;	99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
77	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 */
78		107
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		109
82	#define EIO_COMMON \	110	#define EIO_REQ_MEMBERS \
83	SV *callback; \	111	SV *callback; \
84	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
85	STRLEN stroffset; \	114	STRLEN stroffset; \
86	SV *self	115	SV *self;
87		116
		117	#define EIO_NO_WRAPPERS 1
		118
		119	#include "libeio/config.h"
88	#include "libeio/eio.h"	120	#include "libeio/eio.h"
89		121
90	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
95	#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 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	/*****************************************************************************/
96		221
97	enum {	222	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	224	};
100		225
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
105		229
106	static SV *on_next_submit;	230	static SV *on_next_submit;
107	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	231	static int next_pri = EIO_PRI_DEFAULT;
108	static int max_outstanding;	232	static int max_outstanding;
109		233
110	static int respipe_osf [2], respipe [2] = { -1, -1 };	234	static s_epipe respipe;
111		235
112	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
114		238
115	static void want_poll (void)	239	static void
		240	want_poll (void)
116	{	241	{
117	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	243	s_epipe_signal (&respipe);
119	}	244	}
120		245
121	static void done_poll (void)	246	static void
		247	done_poll (void)
122	{	248	{
123	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
124	char buf [4];	250	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	251	}
128		252
129	/* must be called at most once */	253	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	254	static SV *
		255	req_sv (aio_req req, HV *stash)
131	{	256	{
132	if (!req->self)	257	if (!req->self)
133	{	258	{
134	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	261	}
137		262
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	264	}
140		265
141	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)
142	{	274	{
143	MAGIC *mg;	275	MAGIC *mg;
144		276
145	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")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	282	croak ("object of class IO::AIO::REQ expected");
147		283
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		285
150	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	287	}
152		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
153	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
154	{	302	{
155	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
156	{	304	{
157	dSP;	305	dSP;
158		306
159	ENTER;	307	ENTER;
160	SAVETMPS;	308	SAVETMPS;
161	PUSHMARK (SP);	309	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	310	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	311	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	312	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	313	SPAGAIN;
166	FREETMPS;	314	FREETMPS;
167	LEAVE;	315	LEAVE;
168	}	316	}
169	}	317	}
170		318
		319	static void
171	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
172	{	321	{
173	eio_submit (req);	322	eio_submit (req);
174		323
175	if (on_next_submit)	324	if (expect_false (on_next_submit))
176	{	325	{
177	dSP;	326	dSP;
178	SV *cb = sv_2mortal (on_next_submit);	327	SV *cb = sv_2mortal (on_next_submit);
179		328
180	on_next_submit = 0;	329	on_next_submit = 0;
…		…
183	PUTBACK;	332	PUTBACK;
184	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
185	}	334	}
186	}	335	}
187		336
		337	static int
188	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
189	{	339	{
190	dSP;
191
192	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
193	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
194		342
195	if (!EIO_CANCELLED (req) && SvOK (req->callback))	343	if (!EIO_CANCELLED (req) && req->callback)
196	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
197	ENTER;	349	ENTER;
198	SAVETMPS;	350	SAVETMPS;
199	PUSHMARK (SP);	351	PUSHMARK (SP);
200	EXTEND (SP, 1);	352	EXTEND (SP, 1);
201		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
202	switch (req->type)	367	switch (req->type)
203	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
204	case EIO_READDIR:	373	case EIO_READDIR:
205	{	374	{
206	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
207		376
208	if (req->result >= 0)	377	if (req->result >= 0)
209	{	378	{
210	int i;	379	int i;
211	char *buf = req->ptr2;	380	char *names = (char *)req->ptr2;
		381	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
212	AV *av = newAV ();	382	AV *av = newAV ();
213		383
214	av_extend (av, req->result - 1);	384	av_extend (av, req->result - 1);
215		385
216	for (i = 0; i < req->result; ++i)	386	for (i = 0; i < req->result; ++i)
217	{	387	{
218	SV *sv = newSVpv (buf, 0);	388	if (req->int1 & EIO_READDIR_DENTS)
		389	{
		390	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
219		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
220	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);
221	buf += SvCUR (sv) + 1;	420	names += SvCUR (name) + 1;
		421	}
222	}	422	}
223		423
224	rv = sv_2mortal (newRV_noinc ((SV *)av));	424	rv = sv_2mortal (newRV_noinc ((SV *)av));
225	}	425	}
226		426
227	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))));
228	}	431	}
229	break;	432	break;
230		433
231	case EIO_OPEN:	434	case EIO_OPEN:
232	{	435	{
…		…
238	GV *gv = (GV *)sv_newmortal ();	441	GV *gv = (GV *)sv_newmortal ();
239	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	442	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
240	char sym [64];	443	char sym [64];
241	int symlen;	444	int symlen;
242		445
243	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	446	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
244	gv_init (gv, stash, sym, symlen, 0);	447	gv_init (gv, aio_stash, sym, symlen, 0);
245		448
246	symlen = snprintf (	449	symlen = snprintf (
247	sym,	450	sym,
248	sizeof (sym),	451	sizeof (sym),
249	"%s&=%d",	452	"%s&=%d",
250	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	453	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
251	req->result	454	(int)req->result
252	);	455	);
253		456
254	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	457	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
255	fh = (SV *)gv;	458	fh = (SV *)gv;
256	}	459	}
257		460
258	PUSHs (fh);	461	PUSHs (fh);
259	}	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
260	break;	495	break;
261		496
262	case EIO_GROUP:	497	case EIO_GROUP:
263	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
264		499
…		…
276	case EIO_NOP:	511	case EIO_NOP:
277	case EIO_BUSY:	512	case EIO_BUSY:
278	break;	513	break;
279		514
280	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
281	if (req->result > 0)	517	if (req->result > 0)
282	{	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
283	SvCUR_set (req->sv2, req->result);
284	*SvEND (req->sv2) = 0;
285	PUSHs (req->sv2);
286	}
287	break;	519	break;
288		520
289	case EIO_STAT:	521	case EIO_STAT:
290	case EIO_LSTAT:	522	case EIO_LSTAT:
291	case EIO_FSTAT:	523	case EIO_FSTAT:
292	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
293	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
294	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
295	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
296	break;	531	break;
297		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		535	break;
		536
298	case EIO_READ:	537	case EIO_READ:
		538	{
299	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));
300	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
301	PUSHs (sv_2mortal (newSViv (req->result)));	541	SvPOK_only (req->sv2);
		542	SvSETMAGIC (req->sv2);
		543	PUSHs (sv_result);
		544	}
302	break;	545	break;
303		546
304	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 */
305	if (req->result > 0)	588	if (req->result > 0)
306	req->result = 0;	589	SvIV_set (sv_result, 0);
307	/* FALLTHROUGH */	590	/* FALLTHROUGH */
308		591
309	default:	592	default:
310	PUSHs (sv_2mortal (newSViv (req->result)));	593	PUSHs (sv_result);
311	break;	594	break;
312	}	595	}
313		596
314	errno = req->errorno;	597	errno = req->errorno;
315		598
316	PUTBACK;	599	PUTBACK;
317	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	600	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
318	SPAGAIN;	601	SPAGAIN;
319		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
320	FREETMPS;	608	FREETMPS;
321	LEAVE;	609	LEAVE;
322		610
323	PUTBACK;	611	PUTBACK;
324	}	612	}
325		613
326	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
327	}	615	}
328		616
		617	static void
329	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
330	{	619	{
331	if (req->self)	620	if (req->self)
332	{	621	{
333	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
334	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
335	}	624	}
336		625
337	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
338	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
339	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
340		631
341	Safefree (req);	632	free (req);
342	}	633	}
343		634
		635	static void
344	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
345	{	637	{
346	aio_req sub;
347
348	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
349	return;	639	return;
350		640
351	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
352	grp->sv2 = 0;	642	grp->sv2 = 0;
353		643
354	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
355	}	645	}
356		646
357	#ifdef USE_SOCKETS_AS_HANDLES	647	static void ecb_cold
358	# define TO_SOCKET(x) (win32_get_osfhandle (x))	648	create_respipe (void)
359	#else	649	{
360	# define TO_SOCKET(x) (x)	650	if (s_epipe_renew (&respipe))
361	#endif	651	croak ("IO::AIO: unable to initialize result pipe");
		652	}
362		653
363	static void	654	static void
364	create_respipe (void)	655	poll_wait (void)
365	{	656	{
366	int old_readfd = respipe [0];
367
368	if (respipe [1] >= 0)
369	respipe_close (TO_SOCKET (respipe [1]));
370
371	#ifdef _WIN32
372	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
373	#else
374	if (pipe (respipe))
375	#endif
376	croak ("unable to initialize result pipe");
377
378	if (old_readfd >= 0)
379	{
380	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
381	croak ("unable to initialize result pipe(2)");
382
383	respipe_close (respipe [0]);
384	respipe [0] = old_readfd;
385	}
386
387	#ifdef _WIN32
388	int arg = 1;
389	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
390	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
391	#else
392	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
393	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
394	#endif
395	croak ("unable to initialize result pipe(3)");
396
397	respipe_osf [0] = TO_SOCKET (respipe [0]);
398	respipe_osf [1] = TO_SOCKET (respipe [1]);
399	}
400
401	static void poll_wait (void)
402	{
403	fd_set rfd;
404
405	while (eio_nreqs ())	657	while (eio_nreqs ())
406	{	658	{
407	int size;	659	int size;
408		660
409	X_LOCK (reslock);	661	X_LOCK (reslock);
…		…
411	X_UNLOCK (reslock);	663	X_UNLOCK (reslock);
412		664
413	if (size)	665	if (size)
414	return;	666	return;
415		667
416	maybe_start_thread ();	668	etp_maybe_start_thread ();
417		669
418	FD_ZERO (&rfd);	670	s_epipe_wait (&respipe);
419	FD_SET (respipe [0], &rfd);
420
421	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
422	}	671	}
423	}	672	}
424		673
425	static int poll_cb (void)	674	static int
		675	poll_cb (void)
426	{	676	{
427	int res;	677	for (;;)
428
429	do
430	{	678	{
431	res = eio_poll ();	679	int res = eio_poll ();
432		680
433	if (res > 0)	681	if (res > 0)
434	croak (0);	682	croak (0);
		683
		684	if (!max_outstanding || max_outstanding > eio_nreqs ())
		685	return res;
		686
		687	poll_wait ();
435	}	688	}
436	while (max_outstanding && max_outstanding <= eio_nreqs ());
437
438	return res;
439	}	689	}
440		690
441	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
442	{	693	{
443	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
		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	/*****************************************************************************/
		744
		745	static SV *
		746	get_cb (SV *cb_sv)
		747	{
		748	SvGETMAGIC (cb_sv);
		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	{
		755	SV *cb_cv;
		756	aio_req req;
		757	int req_pri = next_pri;
		758	next_pri = EIO_PRI_DEFAULT;
		759
		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
		769	return req;
444	}	770	}
445		771
446	#define dREQ \	772	#define dREQ \
447	aio_req req; \	773	aio_req req = dreq (callback); \
448	int req_pri = next_pri; \
449	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
450	\
451	if (SvOK (callback) && !SvROK (callback)) \
452	croak ("callback must be undef or of reference type"); \
453	\
454	Newz (0, req, 1, eio_req); \
455	if (!req) \
456	croak ("out of memory during eio_req allocation"); \
457	\
458	req->callback = newSVsv (callback); \
459	req->pri = req_pri
460		774
461	#define REQ_SEND \	775	#define REQ_SEND \
		776	PUTBACK; \
462	req_submit (req); \	777	req_submit (req); \
		778	SPAGAIN; \
463	\	779	\
464	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
465	XPUSHs (req_sv (req, AIO_REQ_KLASS));	781	XPUSHs (req_sv (req, aio_req_stash));
466		782
		783	ecb_inline void
		784	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		785	{
		786	if (expect_false (SvROK (path)))
		787	{
		788	SV *rv = SvRV (path);
		789	SV *wdob;
		790
		791	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		792	{
		793	path = AvARRAY (rv)[1];
		794	wdob = AvARRAY (rv)[0];
		795
		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);
		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;
		848
467	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
468		850
469	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
470		852
471	BOOT:	853	BOOT:
472	{	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
473	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);
474		1010
475	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1011	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
476	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1012	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
477	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
478	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
479	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
480	#ifdef _WIN32
481	X_MUTEX_CHECK (wrklock);
482	X_MUTEX_CHECK (reslock);
483	X_MUTEX_CHECK (reqlock);
484	X_MUTEX_CHECK (reqwait);
485	X_MUTEX_CHECK (preadwritelock);
486	X_MUTEX_CHECK (readdirlock);
487		1013
488	X_COND_CHECK (reqwait);	1014	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
489	#else
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
491	#endif
492		1015
493	create_respipe ();	1016	reinit ();
494
495	if (eio_init (want_poll, done_poll) < 0)
496	croak ("IO::AIO: unable to initialise eio library");
497
498	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);
500	}	1017	}
501		1018
502	void	1019	void
		1020	reinit ()
		1021	PROTOTYPE:
		1022
		1023	void
503	max_poll_reqs (int nreqs)	1024	max_poll_reqs (unsigned int nreqs)
504	PROTOTYPE: $	1025	PROTOTYPE: $
505	CODE:	1026	CODE:
506	eio_set_max_poll_reqs (nreqs);	1027	eio_set_max_poll_reqs (nreqs);
507		1028
508	void	1029	void
…		…
510	PROTOTYPE: $	1031	PROTOTYPE: $
511	CODE:	1032	CODE:
512	eio_set_max_poll_time (nseconds);	1033	eio_set_max_poll_time (nseconds);
513		1034
514	void	1035	void
515	min_parallel (int nthreads)	1036	min_parallel (unsigned int nthreads)
516	PROTOTYPE: $	1037	PROTOTYPE: $
517	CODE:	1038	CODE:
518	eio_set_min_parallel (nthreads);	1039	eio_set_min_parallel (nthreads);
519		1040
520	void	1041	void
521	max_parallel (int nthreads)	1042	max_parallel (unsigned int nthreads)
522	PROTOTYPE: $	1043	PROTOTYPE: $
523	CODE:	1044	CODE:
524	eio_set_max_parallel (nthreads);	1045	eio_set_max_parallel (nthreads);
525		1046
526	void	1047	void
527	max_idle (int nthreads)	1048	max_idle (unsigned int nthreads)
528	PROTOTYPE: $	1049	PROTOTYPE: $
529	CODE:	1050	CODE:
530	eio_set_max_idle (nthreads);	1051	eio_set_max_idle (nthreads);
531		1052
532	void	1053	void
		1054	idle_timeout (unsigned int seconds)
		1055	PROTOTYPE: $
		1056	CODE:
		1057	eio_set_idle_timeout (seconds);
		1058
		1059	void
533	max_outstanding (int maxreqs)	1060	max_outstanding (unsigned int maxreqs)
534	PROTOTYPE: $	1061	PROTOTYPE: $
535	CODE:	1062	CODE:
536	max_outstanding = maxreqs;	1063	max_outstanding = maxreqs;
537		1064
538	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
539	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)
540	PROTOTYPE: $$$;$
541	PPCODE:	1079	PPCODE:
542	{	1080	{
543	dREQ;	1081	dREQ;
544		1082
545	req->type = EIO_OPEN;	1083	req->type = EIO_OPEN;
546	req->sv1 = newSVsv (pathname);	1084	req_set_path1 (req, pathname);
547	req->ptr1 = SvPVbyte_nolen (req->sv1);
548	req->int1 = flags;	1085	req->int1 = flags;
549	req->int2 = mode;	1086	req->int2 = mode;
550		1087
551	REQ_SEND;	1088	REQ_SEND;
552	}	1089	}
553		1090
554	void	1091	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1092	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	1093	ALIAS:
558	aio_fsync = EIO_FSYNC	1094	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	1095	aio_fdatasync = EIO_FDATASYNC
		1096	aio_syncfs = EIO_SYNCFS
560	PPCODE:	1097	PPCODE:
561	{	1098	{
		1099	int fd = s_fileno_croak (fh, 0);
562	dREQ;	1100	dREQ;
563		1101
564	req->type = ix;	1102	req->type = ix;
565	req->sv1 = newSVsv (fh);	1103	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1104	req->int1 = fd;
567		1105
568	REQ_SEND (req);	1106	REQ_SEND;
		1107	}
		1108
		1109	void
		1110	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1111	PPCODE:
		1112	{
		1113	int fd = s_fileno_croak (fh, 0);
		1114	dREQ;
		1115
		1116	req->type = EIO_SYNC_FILE_RANGE;
		1117	req->sv1 = newSVsv (fh);
		1118	req->int1 = fd;
		1119	req->offs = offset;
		1120	req->size = nbytes;
		1121	req->int2 = flags;
		1122
		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;
569	}	1141	}
570		1142
571	void	1143	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1144	aio_close (SV *fh, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	1145	PPCODE:
575	{	1146	{
576	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 */
		1148	int fd = s_fileno_croak (fh, 0);
577	dREQ;	1149	dREQ;
578		1150
579	if (close_pipe < 0)	1151	if (expect_false (close_fd < 0))
580	{	1152	{
581	int pipefd [2];	1153	int pipefd [2];
582		1154
		1155	if (
		1156	#ifdef _WIN32
		1157	_pipe (pipefd, 1, _O_BINARY) < 0
		1158	#else
583	if (pipe (pipefd) < 0	1159	pipe (pipefd) < 0
584	|| close (pipefd [1]) < 0
585	|| 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	)
586	abort (); /*D*/	1164	abort (); /*D*/
587		1165
588	close_pipe = pipefd [0];	1166	close_fd = pipefd [0];
589	}	1167	}
590		1168
591	req->type = EIO_DUP2;	1169	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	1170	req->int1 = close_fd;
593	req->sv2 = newSVsv (fh);	1171	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1172	req->int2 = fd;
595		1173
596	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;
597	}	1191	}
598		1192
599	void	1193	void
600	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)
601	ALIAS:	1195	ALIAS:
602	aio_read = EIO_READ	1196	aio_read = EIO_READ
603	aio_write = EIO_WRITE	1197	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	1198	PPCODE:
606	{	1199	{
607	STRLEN svlen;	1200	STRLEN svlen;
		1201	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	1202	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	1203	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		1204
614	if (dataoffset < 0)	1205	if (dataoffset < 0)
615	dataoffset += svlen;	1206	dataoffset += svlen;
616		1207
617	if (dataoffset < 0 || dataoffset > svlen)	1208	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	1214	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	1215	len = svlen - dataoffset;
625	}	1216	}
626	else	1217	else
627	{	1218	{
628	/* read: grow scalar as necessary */	1219	/* read: check type and grow scalar as necessary */
		1220	SvUPGRADE (data, SVt_PV);
		1221	if (SvLEN (data) >= SvCUR (data))
629	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");
630	}	1225	}
631
632	if (len < 0)
633	croak ("length must not be negative");
634		1226
635	{	1227	{
636	dREQ;	1228	dREQ;
637		1229
638	req->type = ix;	1230	req->type = ix;
639	req->sv1 = newSVsv (fh);	1231	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1232	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1233	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	1234	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	1235	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	1236	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	1237	req->stroffset = dataoffset;
…		…
654	REQ_SEND;	1245	REQ_SEND;
655	}	1246	}
656	}	1247	}
657		1248
658	void	1249	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1250	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
660	PROTOTYPE: $$;$	1251	ALIAS:
		1252	aio_readlink = EIO_READLINK
		1253	aio_realpath = EIO_REALPATH
661	PPCODE:	1254	PPCODE:
662	{	1255	{
663	SV *data;
664	dREQ;	1256	dREQ;
665		1257
666	data = newSV (NAME_MAX);
667	SvPOK_on (data);
668
669	req->type = EIO_READLINK;	1258	req->type = ix;
670	req->sv1 = newSVsv (path);	1259	req_set_path1 (req, pathname);
671	req->ptr1 = SvPVbyte_nolen (req->sv1);
672	req->sv2 = data;
673	req->ptr2 = SvPVbyte_nolen (data);
674		1260
675	REQ_SEND;	1261	REQ_SEND;
676	}	1262	}
677		1263
678	void	1264	void
679	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)
680	PROTOTYPE: $$$$;$
681	PPCODE:	1266	PPCODE:
682	{	1267	{
		1268	int ifd = s_fileno_croak (in_fh , 0);
		1269	int ofd = s_fileno_croak (out_fh, 1);
683	dREQ;	1270	dREQ;
684		1271
685	req->type = EIO_SENDFILE;	1272	req->type = EIO_SENDFILE;
686	req->sv1 = newSVsv (out_fh);	1273	req->sv1 = newSVsv (out_fh);
687	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1274	req->int1 = ofd;
688	req->sv2 = newSVsv (in_fh);	1275	req->sv2 = newSVsv (in_fh);
689	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1276	req->int2 = ifd;
690	req->offs = SvVAL64 (in_offset);	1277	req->offs = in_offset;
691	req->size = length;	1278	req->size = length;
692		1279
693	REQ_SEND;	1280	REQ_SEND;
694	}	1281	}
695		1282
696	void	1283	void
697	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1284	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
698	PROTOTYPE: $$$;$
699	PPCODE:	1285	PPCODE:
700	{	1286	{
		1287	int fd = s_fileno_croak (fh, 0);
701	dREQ;	1288	dREQ;
702		1289
703	req->type = EIO_READAHEAD;	1290	req->type = EIO_READAHEAD;
704	req->sv1 = newSVsv (fh);	1291	req->sv1 = newSVsv (fh);
705	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1292	req->int1 = fd;
706	req->offs = SvVAL64 (offset);	1293	req->offs = offset;
707	req->size = length;	1294	req->size = length;
708		1295
709	REQ_SEND;	1296	REQ_SEND;
710	}	1297	}
711		1298
712	void	1299	void
713	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1300	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
714	ALIAS:	1301	ALIAS:
715	aio_stat = EIO_STAT	1302	aio_stat = EIO_STAT
716	aio_lstat = EIO_LSTAT	1303	aio_lstat = EIO_LSTAT
		1304	aio_statvfs = EIO_STATVFS
717	PPCODE:	1305	PPCODE:
718	{	1306	{
719	dREQ;	1307	dREQ;
720		1308
721	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1309	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
722	if (!req->ptr2)
723	{
724	req_destroy (req);
725	croak ("out of memory during aio_stat statdata allocation");
726	}
727
728	req->flags |= EIO_FLAG_PTR2_FREE;
729	req->sv1 = newSVsv (fh_or_path);
730
731	if (SvPOK (fh_or_path))
732	{
733	req->type = ix;
734	req->ptr1 = SvPVbyte_nolen (req->sv1);
735	}
736	else
737	{
738	req->type = EIO_FSTAT;
739	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
740	}
741		1310
742	REQ_SEND;	1311	REQ_SEND;
743	}	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
744		1329
745	void	1330	void
746	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)
747	PPCODE:	1332	PPCODE:
748	{	1333	{
749	dREQ;	1334	dREQ;
750		1335
751	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1336	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
752	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1337	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
753	req->sv1 = newSVsv (fh_or_path);	1338	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
754
755	if (SvPOK (fh_or_path))
756	{
757	req->type = EIO_UTIME;
758	req->ptr1 = SvPVbyte_nolen (req->sv1);
759	}
760	else
761	{
762	req->type = EIO_FUTIME;
763	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
764	}
765		1339
766	REQ_SEND;	1340	REQ_SEND;
767	}	1341	}
768		1342
769	void	1343	void
770	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)
771	PPCODE:	1345	PPCODE:
772	{	1346	{
773	dREQ;	1347	dREQ;
774		1348
775	req->sv1 = newSVsv (fh_or_path);
776	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1349	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
777		1350	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
778	if (SvPOK (fh_or_path))
779	{
780	req->type = EIO_TRUNCATE;
781	req->ptr1 = SvPVbyte_nolen (req->sv1);
782	}
783	else
784	{
785	req->type = EIO_FTRUNCATE;
786	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
787	}
788		1351
789	REQ_SEND;	1352	REQ_SEND;
790	}	1353	}
791		1354
792	void	1355	void
793	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)
794	ALIAS:
795	aio_chmod = EIO_CHMOD
796	aio_fchmod = EIO_FCHMOD
797	aio_mkdir = EIO_MKDIR
798	PPCODE:	1357	PPCODE:
799	{	1358	{
800	dREQ;	1359	dREQ;
801		1360
802	req->type = ix;
803	req->int2 = mode;	1361	req->int2 = mode;
804	req->sv1 = newSVsv (fh_or_path);	1362	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
805
806	if (ix == EIO_FCHMOD)
807	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
808	else
809	req->ptr1 = SvPVbyte_nolen (req->sv1);
810		1363
811	REQ_SEND;	1364	REQ_SEND;
812	}	1365	}
813		1366
814	void	1367	void
…		…
817	{	1370	{
818	dREQ;	1371	dREQ;
819		1372
820	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1373	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
821	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1374	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
822	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
823		1376
824	if (SvPOK (fh_or_path))	1377	REQ_SEND;
825	{	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
826	req->type = EIO_CHOWN;	1403	req->type = EIO_MKDIR;
827	req->ptr1 = SvPVbyte_nolen (req->sv1);	1404	req->int2 = mode;
828	}	1405	req_set_path1 (req, pathname);
829	else
830	{
831	req->type = EIO_FCHOWN;
832	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
833	}
834		1406
835	REQ_SEND;	1407	REQ_SEND;
836	}	1408	}
837		1409
838	void	1410	void
…		…
844	PPCODE:	1416	PPCODE:
845	{	1417	{
846	dREQ;	1418	dREQ;
847		1419
848	req->type = ix;	1420	req->type = ix;
849	req->sv1 = newSVsv (pathname);	1421	req_set_path1 (req, pathname);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);
851		1422
852	REQ_SEND;	1423	REQ_SEND;
853	}	1424	}
854		1425
855	void	1426	void
…		…
858	aio_link = EIO_LINK	1429	aio_link = EIO_LINK
859	aio_symlink = EIO_SYMLINK	1430	aio_symlink = EIO_SYMLINK
860	aio_rename = EIO_RENAME	1431	aio_rename = EIO_RENAME
861	PPCODE:	1432	PPCODE:
862	{	1433	{
		1434	eio_wd wd2 = 0;
863	dREQ;	1435	dREQ;
864		1436
865	req->type = ix;	1437	req->type = ix;
866	req->sv1 = newSVsv (oldpath);	1438	req_set_path1 (req, oldpath);
867	req->ptr1 = SvPVbyte_nolen (req->sv1);	1439	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
868	req->sv2 = newSVsv (newpath);	1440	req->int3 = (long)wd2;
869	req->ptr2 = SvPVbyte_nolen (req->sv2);
870		1441
871	REQ_SEND;	1442	REQ_SEND;
872	}	1443	}
873		1444
874	void	1445	void
…		…
876	PPCODE:	1447	PPCODE:
877	{	1448	{
878	dREQ;	1449	dREQ;
879		1450
880	req->type = EIO_MKNOD;	1451	req->type = EIO_MKNOD;
881	req->sv1 = newSVsv (pathname);
882	req->ptr1 = SvPVbyte_nolen (req->sv1);
883	req->int2 = (mode_t)mode;	1452	req->int2 = (mode_t)mode;
884	req->offs = dev;	1453	req->offs = dev;
		1454	req_set_path1 (req, pathname);
885		1455
886	REQ_SEND;	1456	REQ_SEND;
887	}	1457	}
888		1458
889	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
890	aio_busy (double delay, SV *callback=&PL_sv_undef)	1557	aio_busy (double delay, SV *callback=&PL_sv_undef)
891	PPCODE:	1558	PPCODE:
892	{	1559	{
893	dREQ;	1560	dREQ;
894		1561
…		…
898	REQ_SEND;	1565	REQ_SEND;
899	}	1566	}
900		1567
901	void	1568	void
902	aio_group (SV *callback=&PL_sv_undef)	1569	aio_group (SV *callback=&PL_sv_undef)
903	PROTOTYPE: ;$
904	PPCODE:	1570	PPCODE:
905	{	1571	{
906	dREQ;	1572	dREQ;
907		1573
908	req->type = EIO_GROUP;	1574	req->type = EIO_GROUP;
909		1575
910	eio_submit (req);	1576	req_submit (req);
911	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1577	XPUSHs (req_sv (req, aio_grp_stash));
912	}	1578	}
913		1579
914	void	1580	void
915	aio_nop (SV *callback=&PL_sv_undef)	1581	aio_nop (SV *callback=&PL_sv_undef)
916	ALIAS:	1582	ALIAS:
…		…
925	REQ_SEND;	1591	REQ_SEND;
926	}	1592	}
927		1593
928	int	1594	int
929	aioreq_pri (int pri = 0)	1595	aioreq_pri (int pri = 0)
930	PROTOTYPE: ;$
931	CODE:	1596	CODE:
932	RETVAL = next_pri - EIO_PRI_BIAS;	1597	RETVAL = next_pri;
933	if (items > 0)	1598	if (items > 0)
934	{	1599	{
935	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1600	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1601	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
937	next_pri = pri + EIO_PRI_BIAS;	1602	next_pri = pri;
938	}	1603	}
939	OUTPUT:	1604	OUTPUT:
940	RETVAL	1605	RETVAL
941		1606
942	void	1607	void
943	aioreq_nice (int nice = 0)	1608	aioreq_nice (int nice = 0)
944	CODE:	1609	CODE:
945	nice = next_pri - nice;	1610	nice = next_pri - nice;
946	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1611	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
947	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1612	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
948	next_pri = nice + EIO_PRI_BIAS;	1613	next_pri = nice;
949		1614
950	void	1615	void
951	flush ()	1616	flush ()
952	PROTOTYPE:
953	CODE:	1617	CODE:
954	while (eio_nreqs ())	1618	while (eio_nreqs ())
955	{	1619	{
956	poll_wait ();	1620	poll_wait ();
957	poll_cb ();	1621	poll_cb ();
958	}	1622	}
959		1623
960	int	1624	int
961	poll()	1625	poll ()
962	PROTOTYPE:
963	CODE:	1626	CODE:
964	poll_wait ();	1627	poll_wait ();
965	RETVAL = poll_cb ();	1628	RETVAL = poll_cb ();
966	OUTPUT:	1629	OUTPUT:
967	RETVAL	1630	RETVAL
968		1631
969	int	1632	int
970	poll_fileno()	1633	poll_fileno ()
971	PROTOTYPE:
972	CODE:	1634	CODE:
973	RETVAL = respipe [0];	1635	RETVAL = s_epipe_fd (&respipe);
974	OUTPUT:	1636	OUTPUT:
975	RETVAL	1637	RETVAL
976		1638
977	int	1639	int
978	poll_cb(...)	1640	poll_cb (...)
979	PROTOTYPE:	1641	PROTOTYPE:
980	CODE:	1642	CODE:
981	RETVAL = poll_cb ();	1643	RETVAL = poll_cb ();
982	OUTPUT:	1644	OUTPUT:
983	RETVAL	1645	RETVAL
984		1646
985	void	1647	void
986	poll_wait()	1648	poll_wait ()
987	PROTOTYPE:
988	CODE:	1649	CODE:
989	poll_wait ();	1650	poll_wait ();
990		1651
991	int	1652	int
992	nreqs()	1653	nreqs ()
993	PROTOTYPE:
994	CODE:	1654	CODE:
995	RETVAL = eio_nreqs ();	1655	RETVAL = eio_nreqs ();
996	OUTPUT:	1656	OUTPUT:
997	RETVAL	1657	RETVAL
998		1658
999	int	1659	int
1000	nready()	1660	nready ()
1001	PROTOTYPE:
1002	CODE:	1661	CODE:
1003	RETVAL = eio_nready ();	1662	RETVAL = eio_nready ();
1004	OUTPUT:	1663	OUTPUT:
1005	RETVAL	1664	RETVAL
1006		1665
1007	int	1666	int
1008	npending()	1667	npending ()
1009	PROTOTYPE:
1010	CODE:	1668	CODE:
1011	RETVAL = eio_npending ();	1669	RETVAL = eio_npending ();
1012	OUTPUT:	1670	OUTPUT:
1013	RETVAL	1671	RETVAL
1014		1672
1015	int	1673	int
1016	nthreads()	1674	nthreads ()
1017	PROTOTYPE:
1018	CODE:	1675	CODE:
1019	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1676	RETVAL = eio_nthreads ();
1020	RETVAL = started;
1021	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1022	OUTPUT:	1677	OUTPUT:
1023	RETVAL	1678	RETVAL
		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
1024		1829
1025	void _on_next_submit (SV *cb)	1830	void _on_next_submit (SV *cb)
1026	CODE:	1831	CODE:
1027	SvREFCNT_dec (on_next_submit);	1832	SvREFCNT_dec (on_next_submit);
1028	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1833	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1029		1834
1030	PROTOTYPES: DISABLE	1835	PROTOTYPES: DISABLE
1031		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
1032	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1865	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1033		1866
1034	void	1867	void
1035	cancel (aio_req_ornot req)	1868	cancel (aio_req_ornot req)
1036	CODE:	1869	CODE:
1037	eio_cancel (req);	1870	eio_cancel (req);
1038		1871
1039	void	1872	void
1040	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1873	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1041	CODE:	1874	PPCODE:
		1875	{
		1876	if (GIMME_V != G_VOID)
		1877	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1878
		1879	if (items > 1)
		1880	{
		1881	SV *cb_cv =get_cb (callback);
		1882
1042	SvREFCNT_dec (req->callback);	1883	SvREFCNT_dec (req->callback);
1043	req->callback = newSVsv (callback);	1884	req->callback = SvREFCNT_inc (cb_cv);
		1885	}
		1886	}
1044		1887
1045	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1888	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1046		1889
1047	void	1890	void
1048	add (aio_req grp, ...)	1891	add (aio_req grp, ...)
…		…
1080	AV *av;	1923	AV *av;
1081		1924
1082	grp->errorno = errno;	1925	grp->errorno = errno;
1083		1926
1084	av = newAV ();	1927	av = newAV ();
		1928	av_extend (av, items - 1);
1085		1929
1086	for (i = 1; i < items; ++i )	1930	for (i = 1; i < items; ++i )
1087	av_push (av, newSVsv (ST (i)));	1931	av_push (av, newSVsv (ST (i)));
1088		1932
1089	SvREFCNT_dec (grp->sv1);	1933	SvREFCNT_dec (grp->sv1);
…		…
1103	void	1947	void
1104	feed (aio_req grp, SV *callback=&PL_sv_undef)	1948	feed (aio_req grp, SV *callback=&PL_sv_undef)
1105	CODE:	1949	CODE:
1106	{	1950	{
1107	SvREFCNT_dec (grp->sv2);	1951	SvREFCNT_dec (grp->sv2);
1108	grp->sv2 = newSVsv (callback);	1952	grp->sv2 = newSVsv (callback);
		1953	grp->feed = aio_grp_feed;
1109		1954
1110	if (grp->int2 <= 0)	1955	if (grp->int2 <= 0)
1111	grp->int2 = 2;	1956	grp->int2 = 2;
1112		1957
1113	eio_grp_limit (grp, grp->int2);	1958	eio_grp_limit (grp, grp->int2);

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