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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.118 by root, Sun May 11 00:01:03 2008 UTC vs.
Revision 1.212 by root, Sun Apr 8 00:11:50 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		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
21	#ifdef _WIN32	42	#ifdef _WIN32
22		43
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions	44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
28	# undef open	48	#undef open
29	# undef read	49	#undef read
30	# undef write	50	#undef write
31	# undef send	51	#undef send
32	# undef recv	52	#undef recv
33	# undef stat	53	#undef stat
		54	#undef lstat
34	# undef fstat	55	#undef fstat
35	# define lstat stat
36	# undef truncate	56	#undef truncate
37	# undef ftruncate	57	#undef ftruncate
38	# undef open	58	#undef open
		59	#undef link
39	# undef close	60	#undef close
40	# undef unlink	61	#undef unlink
		62	#undef mkdir
41	# undef rmdir	63	#undef rmdir
42	# undef rename	64	#undef rename
43	# 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
44		75
45	# define chown(a,b,c) (errno = ENOSYS, -1)	76	#define EIO_STRUCT_STAT struct _stati64
46	# define fchown(a,b,c) (errno = ENOSYS, -1)	77	#define EIO_STRUCT_STATI64
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		78
59	#else	79	#else
60		80
61	# include <sys/time.h>	81	#include <sys/time.h>
62	# include <sys/select.h>	82	#include <sys/select.h>
63	# include <unistd.h>	83	#include <unistd.h>
64	# include <utime.h>	84	#include <utime.h>
65	# include <signal.h>	85	#include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67		86
68	#endif
69
70	#define EIO_STRUCT_STAT Stat_t	87	#define EIO_STRUCT_STAT Stat_t
71		88
72	/* use NV for 32 bit perls as it allows larger offsets */	89	#endif
73	#if IVSIZE >= 8	90
74	# define SvVAL64 SvIV	91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
75	#else	95	#else
76	# define SvVAL64 SvNV	96	# define expect(expr,value) (expr)
77	#endif	97	#endif
78		98
79	static HV *stash;	99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
80	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 */
81		107
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		109
85	#define EIO_COMMON \	110	#define EIO_REQ_MEMBERS \
86	SV *callback; \	111	SV *callback; \
87	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
88	STRLEN stroffset; \	114	STRLEN stroffset; \
89	SV *self	115	SV *self;
90		116
		117	#define EIO_NO_WRAPPERS 1
		118
		119	#include "libeio/config.h"
91	#include "libeio/eio.h"	120	#include "libeio/eio.h"
92		121
93	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
95	static void aio_grp_feed (eio_req *grp);
96	#define EIO_FEED(req) aio_grp_feed (req)
97	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
98	#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	/*****************************************************************************/
99		221
100	enum {	222	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
102	};	224	};
103		225
104	#include "libeio/eio.c"
105
106	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
108		229
109	static SV *on_next_submit;	230	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	231	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	232	static int max_outstanding;
112		233
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	234	static s_epipe respipe;
114		235
115	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
117		238
118	static void want_poll (void)	239	static void
		240	want_poll (void)
119	{	241	{
120	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	243	s_epipe_signal (&respipe);
122	}	244	}
123		245
124	static void done_poll (void)	246	static void
		247	done_poll (void)
125	{	248	{
126	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
127	char buf [4];	250	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	251	}
131		252
132	/* must be called at most once */	253	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	254	static SV *
		255	req_sv (aio_req req, HV *stash)
134	{	256	{
135	if (!req->self)	257	if (!req->self)
136	{	258	{
137	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	261	}
140		262
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	264	}
143		265
144	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)
145	{	274	{
146	MAGIC *mg;	275	MAGIC *mg;
147		276
148	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")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	282	croak ("object of class IO::AIO::REQ expected");
150		283
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		285
153	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	287	}
155		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
156	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
157	{	302	{
158	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
159	{	304	{
160	dSP;	305	dSP;
161		306
162	ENTER;	307	ENTER;
163	SAVETMPS;	308	SAVETMPS;
164	PUSHMARK (SP);	309	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	310	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	311	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	312	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	313	SPAGAIN;
169	FREETMPS;	314	FREETMPS;
170	LEAVE;	315	LEAVE;
171	}	316	}
172	}	317	}
173		318
		319	static void
174	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
175	{	321	{
176	eio_submit (req);	322	eio_submit (req);
177		323
178	if (on_next_submit)	324	if (expect_false (on_next_submit))
179	{	325	{
180	dSP;	326	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	327	SV *cb = sv_2mortal (on_next_submit);
182		328
183	on_next_submit = 0;	329	on_next_submit = 0;
…		…
186	PUTBACK;	332	PUTBACK;
187	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
188	}	334	}
189	}	335	}
190		336
		337	static int
191	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
192	{	339	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
197		342
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	343	if (!EIO_CANCELLED (req) && req->callback)
199	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
200	ENTER;	349	ENTER;
201	SAVETMPS;	350	SAVETMPS;
202	PUSHMARK (SP);	351	PUSHMARK (SP);
203	EXTEND (SP, 1);	352	EXTEND (SP, 1);
204		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
205	switch (req->type)	367	switch (req->type)
206	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
207	case EIO_READDIR:	373	case EIO_READDIR:
208	{	374	{
209	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
210		376
211	if (req->result >= 0)	377	if (req->result >= 0)
212	{	378	{
213	int i;	379	int i;
214	char *buf = req->ptr2;	380	char *names = (char *)req->ptr2;
		381	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215	AV *av = newAV ();	382	AV *av = newAV ();
216		383
217	av_extend (av, req->result - 1);	384	av_extend (av, req->result - 1);
218		385
219	for (i = 0; i < req->result; ++i)	386	for (i = 0; i < req->result; ++i)
220	{	387	{
221	SV *sv = newSVpv (buf, 0);	388	if (req->int1 & EIO_READDIR_DENTS)
		389	{
		390	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		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
223	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);
224	buf += SvCUR (sv) + 1;	420	names += SvCUR (name) + 1;
		421	}
225	}	422	}
226		423
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	424	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	425	}
229		426
230	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))));
231	}	431	}
232	break;	432	break;
233		433
234	case EIO_OPEN:	434	case EIO_OPEN:
235	{	435	{
…		…
241	GV *gv = (GV *)sv_newmortal ();	441	GV *gv = (GV *)sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	442	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243	char sym [64];	443	char sym [64];
244	int symlen;	444	int symlen;
245		445
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	446	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	447	gv_init (gv, aio_stash, sym, symlen, 0);
248		448
249	symlen = snprintf (	449	symlen = snprintf (
250	sym,	450	sym,
251	sizeof (sym),	451	sizeof (sym),
252	"%s&=%d",	452	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	453	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	454	(int)req->result
255	);	455	);
256		456
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	457	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	458	fh = (SV *)gv;
259	}	459	}
260		460
261	PUSHs (fh);	461	PUSHs (fh);
262	}	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
263	break;	495	break;
264		496
265	case EIO_GROUP:	497	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
267		499
…		…
279	case EIO_NOP:	511	case EIO_NOP:
280	case EIO_BUSY:	512	case EIO_BUSY:
281	break;	513	break;
282		514
283	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
284	if (req->result > 0)	517	if (req->result > 0)
285	{	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
286	SvCUR_set (req->sv2, req->result);
287	*SvEND (req->sv2) = 0;
288	PUSHs (req->sv2);
289	}
290	break;	519	break;
291		520
292	case EIO_STAT:	521	case EIO_STAT:
293	case EIO_LSTAT:	522	case EIO_LSTAT:
294	case EIO_FSTAT:	523	case EIO_FSTAT:
295	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
296	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
297	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
298	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
299	break;	531	break;
300		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		535	break;
		536
301	case EIO_READ:	537	case EIO_READ:
		538	{
302	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));
303	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
304	PUSHs (sv_2mortal (newSViv (req->result)));	541	SvPOK_only (req->sv2);
		542	SvSETMAGIC (req->sv2);
		543	PUSHs (sv_result);
		544	}
305	break;	545	break;
306		546
307	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 */
308	if (req->result > 0)	588	if (req->result > 0)
309	req->result = 0;	589	SvIV_set (sv_result, 0);
310	/* FALLTHROUGH */	590	/* FALLTHROUGH */
311		591
312	default:	592	default:
313	PUSHs (sv_2mortal (newSViv (req->result)));	593	PUSHs (sv_result);
314	break;	594	break;
315	}	595	}
316		596
317	errno = req->errorno;	597	errno = req->errorno;
318		598
319	PUTBACK;	599	PUTBACK;
320	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	600	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
321	SPAGAIN;	601	SPAGAIN;
322		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
323	FREETMPS;	608	FREETMPS;
324	LEAVE;	609	LEAVE;
325		610
326	PUTBACK;	611	PUTBACK;
327	}	612	}
328		613
329	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
330	}	615	}
331		616
		617	static void
332	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
333	{	619	{
334	if (req->self)	620	if (req->self)
335	{	621	{
336	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
337	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
338	}	624	}
339		625
340	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
341	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
342	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
343		631
344	Safefree (req);	632	free (req);
345	}	633	}
346		634
		635	static void
347	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
348	{	637	{
349	aio_req sub;
350
351	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
352	return;	639	return;
353		640
354	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
355	grp->sv2 = 0;	642	grp->sv2 = 0;
356		643
357	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
358	}	645	}
359		646
360	#ifdef USE_SOCKETS_AS_HANDLES	647	static void ecb_cold
361	# define TO_SOCKET(x) (win32_get_osfhandle (x))	648	create_respipe (void)
362	#else	649	{
363	# define TO_SOCKET(x) (x)	650	if (s_epipe_renew (&respipe))
364	#endif	651	croak ("IO::AIO: unable to initialize result pipe");
		652	}
365		653
366	static void	654	static void
367	create_respipe (void)	655	poll_wait (void)
368	{	656	{
369	int old_readfd = respipe [0];
370
371	if (respipe [1] >= 0)
372	respipe_close (TO_SOCKET (respipe [1]));
373
374	#ifdef _WIN32
375	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
376	#else
377	if (pipe (respipe))
378	#endif
379	croak ("unable to initialize result pipe");
380
381	if (old_readfd >= 0)
382	{
383	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
384	croak ("unable to initialize result pipe(2)");
385
386	respipe_close (respipe [0]);
387	respipe [0] = old_readfd;
388	}
389
390	#ifdef _WIN32
391	int arg = 1;
392	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
393	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
394	#else
395	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
396	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
397	#endif
398	croak ("unable to initialize result pipe(3)");
399
400	respipe_osf [0] = TO_SOCKET (respipe [0]);
401	respipe_osf [1] = TO_SOCKET (respipe [1]);
402	}
403
404	static void poll_wait (void)
405	{
406	fd_set rfd;
407
408	while (eio_nreqs ())	657	while (eio_nreqs ())
409	{	658	{
410	int size;	659	int size;
411		660
412	X_LOCK (reslock);	661	X_LOCK (reslock);
…		…
414	X_UNLOCK (reslock);	663	X_UNLOCK (reslock);
415		664
416	if (size)	665	if (size)
417	return;	666	return;
418		667
419	maybe_start_thread ();	668	etp_maybe_start_thread ();
420		669
421	FD_ZERO (&rfd);	670	s_epipe_wait (&respipe);
422	FD_SET (respipe [0], &rfd);
423
424	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
425	}	671	}
426	}	672	}
427		673
428	static int poll_cb (void)	674	static int
		675	poll_cb (void)
429	{	676	{
430	int res;	677	for (;;)
431
432	do
433	{	678	{
434	res = eio_poll ();	679	int res = eio_poll ();
435		680
436	if (res > 0)	681	if (res > 0)
437	croak (0);	682	croak (0);
		683
		684	if (!max_outstanding || max_outstanding > eio_nreqs ())
		685	return res;
		686
		687	poll_wait ();
438	}	688	}
439	while (max_outstanding && max_outstanding <= eio_nreqs ());
440
441	return res;
442	}	689	}
443		690
444	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
445	{	693	{
446	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) (errno = ENOSYS, -1)
		704	# define munmap(addr,length) (errno = ENOSYS, -1)
		705	#endif
		706
		707	#if !_POSIX_MEMORY_PROTECTION
		708	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		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;
447	}	770	}
448		771
449	#define dREQ \	772	#define dREQ \
450	aio_req req; \	773	aio_req req = dreq (callback); \
451	int req_pri = next_pri; \
452	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
453	\
454	if (SvOK (callback) && !SvROK (callback)) \
455	croak ("callback must be undef or of reference type"); \
456	\
457	Newz (0, req, 1, eio_req); \
458	if (!req) \
459	croak ("out of memory during eio_req allocation"); \
460	\
461	req->callback = newSVsv (callback); \
462	req->pri = req_pri
463		774
464	#define REQ_SEND \	775	#define REQ_SEND \
		776	PUTBACK; \
465	req_submit (req); \	777	req_submit (req); \
		778	SPAGAIN; \
466	\	779	\
467	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
468	XPUSHs (req_sv (req, AIO_REQ_KLASS));	781	XPUSHs (req_sv (req, aio_req_stash));
469		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
470	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
471		850
472	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
473		852
474	BOOT:	853	BOOT:
475	{	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_eio (SEEK_SET)
		962	const_eio (SEEK_CUR)
		963	const_eio (SEEK_END)
		964
		965	const_eio (MCL_FUTURE)
		966	const_eio (MCL_CURRENT)
		967
		968	const_eio (MS_ASYNC)
		969	const_eio (MS_INVALIDATE)
		970	const_eio (MS_SYNC)
		971
		972	const_eio (MT_MODIFY)
		973
		974	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		975	const_eio (SYNC_FILE_RANGE_WRITE)
		976	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		977
		978	const_eio (FALLOC_FL_KEEP_SIZE)
		979
		980	const_eio (READDIR_DENTS)
		981	const_eio (READDIR_DIRS_FIRST)
		982	const_eio (READDIR_STAT_ORDER)
		983	const_eio (READDIR_FOUND_UNKNOWN)
		984
		985	const_eio (DT_UNKNOWN)
		986	const_eio (DT_FIFO)
		987	const_eio (DT_CHR)
		988	const_eio (DT_DIR)
		989	const_eio (DT_BLK)
		990	const_eio (DT_REG)
		991	const_eio (DT_LNK)
		992	const_eio (DT_SOCK)
		993	const_eio (DT_WHT)
		994	};
		995
476	stash = gv_stashpv ("IO::AIO", 1);	996	aio_stash = gv_stashpv ("IO::AIO" , 1);
		997	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		998	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		999	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
477		1000
478	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1001	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
479	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1002	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
480	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
481	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
482	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
483	#ifdef _WIN32
484	X_MUTEX_CHECK (wrklock);
485	X_MUTEX_CHECK (reslock);
486	X_MUTEX_CHECK (reqlock);
487	X_MUTEX_CHECK (reqwait);
488	X_MUTEX_CHECK (preadwritelock);
489	X_MUTEX_CHECK (readdirlock);
490		1003
491	X_COND_CHECK (reqwait);	1004	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
492	#else
493	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
494	#endif
495		1005
496	create_respipe ();	1006	reinit ();
497
498	if (eio_init (want_poll, done_poll) < 0)
499	croak ("IO::AIO: unable to initialise eio library");
500
501	/* atfork child called in fifo order, so before eio's handler */
502	X_THREAD_ATFORK (0, 0, atfork_child);
503	}	1007	}
504		1008
505	void	1009	void
		1010	reinit ()
		1011	PROTOTYPE:
		1012
		1013	void
506	max_poll_reqs (int nreqs)	1014	max_poll_reqs (unsigned int nreqs)
507	PROTOTYPE: $	1015	PROTOTYPE: $
508	CODE:	1016	CODE:
509	eio_set_max_poll_reqs (nreqs);	1017	eio_set_max_poll_reqs (nreqs);
510		1018
511	void	1019	void
…		…
513	PROTOTYPE: $	1021	PROTOTYPE: $
514	CODE:	1022	CODE:
515	eio_set_max_poll_time (nseconds);	1023	eio_set_max_poll_time (nseconds);
516		1024
517	void	1025	void
518	min_parallel (int nthreads)	1026	min_parallel (unsigned int nthreads)
519	PROTOTYPE: $	1027	PROTOTYPE: $
520	CODE:	1028	CODE:
521	eio_set_min_parallel (nthreads);	1029	eio_set_min_parallel (nthreads);
522		1030
523	void	1031	void
524	max_parallel (int nthreads)	1032	max_parallel (unsigned int nthreads)
525	PROTOTYPE: $	1033	PROTOTYPE: $
526	CODE:	1034	CODE:
527	eio_set_max_parallel (nthreads);	1035	eio_set_max_parallel (nthreads);
528		1036
529	void	1037	void
530	max_idle (int nthreads)	1038	max_idle (unsigned int nthreads)
531	PROTOTYPE: $	1039	PROTOTYPE: $
532	CODE:	1040	CODE:
533	eio_set_max_idle (nthreads);	1041	eio_set_max_idle (nthreads);
534		1042
535	void	1043	void
		1044	idle_timeout (unsigned int seconds)
		1045	PROTOTYPE: $
		1046	CODE:
		1047	eio_set_idle_timeout (seconds);
		1048
		1049	void
536	max_outstanding (int maxreqs)	1050	max_outstanding (unsigned int maxreqs)
537	PROTOTYPE: $	1051	PROTOTYPE: $
538	CODE:	1052	CODE:
539	max_outstanding = maxreqs;	1053	max_outstanding = maxreqs;
540		1054
541	void	1055	void
		1056	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1057	PPCODE:
		1058	{
		1059	dREQ;
		1060
		1061	req->type = EIO_WD_OPEN;
		1062	req_set_path1 (req, pathname);
		1063
		1064	REQ_SEND;
		1065	}
		1066
		1067	void
542	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1068	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
543	PROTOTYPE: $$$;$
544	PPCODE:	1069	PPCODE:
545	{	1070	{
546	dREQ;	1071	dREQ;
547		1072
548	req->type = EIO_OPEN;	1073	req->type = EIO_OPEN;
549	req->sv1 = newSVsv (pathname);	1074	req_set_path1 (req, pathname);
550	req->ptr1 = SvPVbyte_nolen (req->sv1);
551	req->int1 = flags;	1075	req->int1 = flags;
552	req->int2 = mode;	1076	req->int2 = mode;
553		1077
554	REQ_SEND;	1078	REQ_SEND;
555	}	1079	}
556		1080
557	void	1081	void
558	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1082	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
559	PROTOTYPE: $;$
560	ALIAS:	1083	ALIAS:
561	aio_fsync = EIO_FSYNC	1084	aio_fsync = EIO_FSYNC
562	aio_fdatasync = EIO_FDATASYNC	1085	aio_fdatasync = EIO_FDATASYNC
		1086	aio_syncfs = EIO_SYNCFS
563	PPCODE:	1087	PPCODE:
564	{	1088	{
		1089	int fd = s_fileno_croak (fh, 0);
565	dREQ;	1090	dREQ;
566		1091
567	req->type = ix;	1092	req->type = ix;
568	req->sv1 = newSVsv (fh);	1093	req->sv1 = newSVsv (fh);
569	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1094	req->int1 = fd;
570		1095
571	REQ_SEND (req);	1096	REQ_SEND;
		1097	}
		1098
		1099	void
		1100	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1101	PPCODE:
		1102	{
		1103	int fd = s_fileno_croak (fh, 0);
		1104	dREQ;
		1105
		1106	req->type = EIO_SYNC_FILE_RANGE;
		1107	req->sv1 = newSVsv (fh);
		1108	req->int1 = fd;
		1109	req->offs = offset;
		1110	req->size = nbytes;
		1111	req->int2 = flags;
		1112
		1113	REQ_SEND;
		1114	}
		1115
		1116	void
		1117	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1118	PPCODE:
		1119	{
		1120	int fd = s_fileno_croak (fh, 0);
		1121	dREQ;
		1122
		1123	req->type = EIO_FALLOCATE;
		1124	req->sv1 = newSVsv (fh);
		1125	req->int1 = fd;
		1126	req->int2 = mode;
		1127	req->offs = offset;
		1128	req->size = len;
		1129
		1130	REQ_SEND;
572	}	1131	}
573		1132
574	void	1133	void
575	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1134	aio_close (SV *fh, SV *callback=&PL_sv_undef)
576	PROTOTYPE: $;$
577	PPCODE:	1135	PPCODE:
578	{	1136	{
579	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1137	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1138	int fd = s_fileno_croak (fh, 0);
580	dREQ;	1139	dREQ;
581		1140
582	if (close_pipe < 0)	1141	if (expect_false (close_fd < 0))
583	{	1142	{
584	int pipefd [2];	1143	int pipefd [2];
585		1144
		1145	if (
		1146	#ifdef _WIN32
		1147	_pipe (pipefd, 1, _O_BINARY) < 0
		1148	#else
586	if (pipe (pipefd) < 0	1149	pipe (pipefd) < 0
587	|| close (pipefd [1]) < 0
588	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1150	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1151	#endif
		1152	|| close (pipefd [1]) < 0
		1153	)
589	abort (); /*D*/	1154	abort (); /*D*/
590		1155
591	close_pipe = pipefd [0];	1156	close_fd = pipefd [0];
592	}	1157	}
593		1158
594	req->type = EIO_DUP2;	1159	req->type = EIO_DUP2;
595	req->int1 = close_pipe;	1160	req->int1 = close_fd;
596	req->sv2 = newSVsv (fh);	1161	req->sv2 = newSVsv (fh);
597	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1162	req->int2 = fd;
598		1163
599	REQ_SEND (req);	1164	REQ_SEND;
		1165	}
		1166
		1167	void
		1168	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1169	PPCODE:
		1170	{
		1171	int fd = s_fileno_croak (fh, 0);
		1172	dREQ;
		1173
		1174	req->type = EIO_SEEK;
		1175	req->sv1 = newSVsv (fh);
		1176	req->int1 = fd;
		1177	req->offs = SvVAL64 (offset);
		1178	req->int2 = whence;
		1179
		1180	REQ_SEND;
600	}	1181	}
601		1182
602	void	1183	void
603	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1184	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
604	ALIAS:	1185	ALIAS:
605	aio_read = EIO_READ	1186	aio_read = EIO_READ
606	aio_write = EIO_WRITE	1187	aio_write = EIO_WRITE
607	PROTOTYPE: $$$$$;$
608	PPCODE:	1188	PPCODE:
609	{	1189	{
610	STRLEN svlen;	1190	STRLEN svlen;
		1191	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
611	char *svptr = SvPVbyte (data, svlen);	1192	char *svptr = SvPVbyte (data, svlen);
612	UV len = SvUV (length);	1193	UV len = SvUV (length);
613
614	SvUPGRADE (data, SVt_PV);
615	SvPOK_on (data);
616		1194
617	if (dataoffset < 0)	1195	if (dataoffset < 0)
618	dataoffset += svlen;	1196	dataoffset += svlen;
619		1197
620	if (dataoffset < 0 || dataoffset > svlen)	1198	if (dataoffset < 0 || dataoffset > svlen)
…		…
626	if (!SvOK (length) || len + dataoffset > svlen)	1204	if (!SvOK (length) || len + dataoffset > svlen)
627	len = svlen - dataoffset;	1205	len = svlen - dataoffset;
628	}	1206	}
629	else	1207	else
630	{	1208	{
631	/* read: grow scalar as necessary */	1209	/* read: check type and grow scalar as necessary */
		1210	SvUPGRADE (data, SVt_PV);
632	svptr = SvGROW (data, len + dataoffset + 1);	1211	svptr = SvGROW (data, len + dataoffset + 1);
633	}	1212	}
634		1213
635	if (len < 0)
636	croak ("length must not be negative");
637
638	{	1214	{
639	dREQ;	1215	dREQ;
640		1216
641	req->type = ix;	1217	req->type = ix;
642	req->sv1 = newSVsv (fh);	1218	req->sv1 = newSVsv (fh);
643	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1219	req->int1 = fd;
644	: IoOFP (sv_2io (fh)));
645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1220	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
646	req->size = len;	1221	req->size = len;
647	req->sv2 = SvREFCNT_inc (data);	1222	req->sv2 = SvREFCNT_inc (data);
648	req->ptr2 = (char *)svptr + dataoffset;	1223	req->ptr2 = (char *)svptr + dataoffset;
649	req->stroffset = dataoffset;	1224	req->stroffset = dataoffset;
…		…
657	REQ_SEND;	1232	REQ_SEND;
658	}	1233	}
659	}	1234	}
660		1235
661	void	1236	void
662	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1237	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$;$	1238	ALIAS:
		1239	aio_readlink = EIO_READLINK
		1240	aio_realpath = EIO_REALPATH
664	PPCODE:	1241	PPCODE:
665	{	1242	{
666	SV *data;
667	dREQ;	1243	dREQ;
668		1244
669	data = newSV (NAME_MAX);
670	SvPOK_on (data);
671
672	req->type = EIO_READLINK;	1245	req->type = ix;
673	req->sv1 = newSVsv (path);	1246	req_set_path1 (req, pathname);
674	req->ptr1 = SvPVbyte_nolen (req->sv1);
675	req->sv2 = data;
676	req->ptr2 = SvPVbyte_nolen (data);
677		1247
678	REQ_SEND;	1248	REQ_SEND;
679	}	1249	}
680		1250
681	void	1251	void
682	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1252	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
683	PROTOTYPE: $$$$;$
684	PPCODE:	1253	PPCODE:
685	{	1254	{
		1255	int ifd = s_fileno_croak (in_fh , 0);
		1256	int ofd = s_fileno_croak (out_fh, 1);
686	dREQ;	1257	dREQ;
687		1258
688	req->type = EIO_SENDFILE;	1259	req->type = EIO_SENDFILE;
689	req->sv1 = newSVsv (out_fh);	1260	req->sv1 = newSVsv (out_fh);
690	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1261	req->int1 = ofd;
691	req->sv2 = newSVsv (in_fh);	1262	req->sv2 = newSVsv (in_fh);
692	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1263	req->int2 = ifd;
693	req->offs = SvVAL64 (in_offset);	1264	req->offs = in_offset;
694	req->size = length;	1265	req->size = length;
695		1266
696	REQ_SEND;	1267	REQ_SEND;
697	}	1268	}
698		1269
699	void	1270	void
700	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1271	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
701	PROTOTYPE: $$$;$
702	PPCODE:	1272	PPCODE:
703	{	1273	{
		1274	int fd = s_fileno_croak (fh, 0);
704	dREQ;	1275	dREQ;
705		1276
706	req->type = EIO_READAHEAD;	1277	req->type = EIO_READAHEAD;
707	req->sv1 = newSVsv (fh);	1278	req->sv1 = newSVsv (fh);
708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1279	req->int1 = fd;
709	req->offs = SvVAL64 (offset);	1280	req->offs = offset;
710	req->size = length;	1281	req->size = length;
711		1282
712	REQ_SEND;	1283	REQ_SEND;
713	}	1284	}
714		1285
715	void	1286	void
716	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1287	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
717	ALIAS:	1288	ALIAS:
718	aio_stat = EIO_STAT	1289	aio_stat = EIO_STAT
719	aio_lstat = EIO_LSTAT	1290	aio_lstat = EIO_LSTAT
		1291	aio_statvfs = EIO_STATVFS
720	PPCODE:	1292	PPCODE:
721	{	1293	{
722	dREQ;	1294	dREQ;
723		1295
724	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1296	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
725	if (!req->ptr2)
726	{
727	req_destroy (req);
728	croak ("out of memory during aio_stat statdata allocation");
729	}
730
731	req->flags |= EIO_FLAG_PTR2_FREE;
732	req->sv1 = newSVsv (fh_or_path);
733
734	if (SvPOK (fh_or_path))
735	{
736	req->type = ix;
737	req->ptr1 = SvPVbyte_nolen (req->sv1);
738	}
739	else
740	{
741	req->type = EIO_FSTAT;
742	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
743	}
744		1297
745	REQ_SEND;	1298	REQ_SEND;
746	}	1299	}
		1300
		1301	UV
		1302	major (UV dev)
		1303	ALIAS:
		1304	minor = 1
		1305	CODE:
		1306	RETVAL = ix ? major (dev) : minor (dev);
		1307	OUTPUT:
		1308	RETVAL
		1309
		1310	UV
		1311	makedev (UV maj, UV min)
		1312	CODE:
		1313	RETVAL = makedev (maj, min);
		1314	OUTPUT:
		1315	RETVAL
747		1316
748	void	1317	void
749	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1318	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
750	PPCODE:	1319	PPCODE:
751	{	1320	{
752	dREQ;	1321	dREQ;
753		1322
754	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1323	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
755	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1324	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
756	req->sv1 = newSVsv (fh_or_path);	1325	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
757
758	if (SvPOK (fh_or_path))
759	{
760	req->type = EIO_UTIME;
761	req->ptr1 = SvPVbyte_nolen (req->sv1);
762	}
763	else
764	{
765	req->type = EIO_FUTIME;
766	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
767	}
768		1326
769	REQ_SEND;	1327	REQ_SEND;
770	}	1328	}
771		1329
772	void	1330	void
773	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1331	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
774	PPCODE:	1332	PPCODE:
775	{	1333	{
776	dREQ;	1334	dREQ;
777		1335
778	req->sv1 = newSVsv (fh_or_path);
779	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1336	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
780		1337	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
781	if (SvPOK (fh_or_path))
782	{
783	req->type = EIO_TRUNCATE;
784	req->ptr1 = SvPVbyte_nolen (req->sv1);
785	}
786	else
787	{
788	req->type = EIO_FTRUNCATE;
789	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
790	}
791		1338
792	REQ_SEND;	1339	REQ_SEND;
793	}	1340	}
794		1341
795	void	1342	void
796	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1343	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
797	ALIAS:
798	aio_chmod = EIO_CHMOD
799	aio_fchmod = EIO_FCHMOD
800	aio_mkdir = EIO_MKDIR
801	PPCODE:	1344	PPCODE:
802	{	1345	{
803	dREQ;	1346	dREQ;
804		1347
805	req->type = ix;
806	req->int2 = mode;	1348	req->int2 = mode;
807	req->sv1 = newSVsv (fh_or_path);	1349	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
808
809	if (ix == EIO_FCHMOD)
810	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
811	else
812	req->ptr1 = SvPVbyte_nolen (req->sv1);
813		1350
814	REQ_SEND;	1351	REQ_SEND;
815	}	1352	}
816		1353
817	void	1354	void
…		…
820	{	1357	{
821	dREQ;	1358	dREQ;
822		1359
823	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1360	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
824	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1361	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
825	req->sv1 = newSVsv (fh_or_path);	1362	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
826		1363
827	if (SvPOK (fh_or_path))	1364	REQ_SEND;
828	{	1365	}
		1366
		1367	void
		1368	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1369	PPCODE:
		1370	{
		1371	dREQ;
		1372
		1373	req->type = EIO_READDIR;
		1374	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1375
		1376	if (flags & EIO_READDIR_DENTS)
		1377	req->int1 |= EIO_READDIR_CUSTOM2;
		1378
		1379	req_set_path1 (req, pathname);
		1380
		1381	REQ_SEND;
		1382	}
		1383
		1384	void
		1385	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1386	PPCODE:
		1387	{
		1388	dREQ;
		1389
829	req->type = EIO_CHOWN;	1390	req->type = EIO_MKDIR;
830	req->ptr1 = SvPVbyte_nolen (req->sv1);	1391	req->int2 = mode;
831	}	1392	req_set_path1 (req, pathname);
832	else
833	{
834	req->type = EIO_FCHOWN;
835	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
836	}
837		1393
838	REQ_SEND;	1394	REQ_SEND;
839	}	1395	}
840		1396
841	void	1397	void
…		…
847	PPCODE:	1403	PPCODE:
848	{	1404	{
849	dREQ;	1405	dREQ;
850		1406
851	req->type = ix;	1407	req->type = ix;
852	req->sv1 = newSVsv (pathname);	1408	req_set_path1 (req, pathname);
853	req->ptr1 = SvPVbyte_nolen (req->sv1);
854		1409
855	REQ_SEND;	1410	REQ_SEND;
856	}	1411	}
857		1412
858	void	1413	void
…		…
861	aio_link = EIO_LINK	1416	aio_link = EIO_LINK
862	aio_symlink = EIO_SYMLINK	1417	aio_symlink = EIO_SYMLINK
863	aio_rename = EIO_RENAME	1418	aio_rename = EIO_RENAME
864	PPCODE:	1419	PPCODE:
865	{	1420	{
		1421	eio_wd wd2 = 0;
866	dREQ;	1422	dREQ;
867		1423
868	req->type = ix;	1424	req->type = ix;
869	req->sv1 = newSVsv (oldpath);	1425	req_set_path1 (req, oldpath);
870	req->ptr1 = SvPVbyte_nolen (req->sv1);	1426	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
871	req->sv2 = newSVsv (newpath);	1427	req->int3 = (long)wd2;
872	req->ptr2 = SvPVbyte_nolen (req->sv2);
873		1428
874	REQ_SEND;	1429	REQ_SEND;
875	}	1430	}
876		1431
877	void	1432	void
…		…
879	PPCODE:	1434	PPCODE:
880	{	1435	{
881	dREQ;	1436	dREQ;
882		1437
883	req->type = EIO_MKNOD;	1438	req->type = EIO_MKNOD;
884	req->sv1 = newSVsv (pathname);
885	req->ptr1 = SvPVbyte_nolen (req->sv1);
886	req->int2 = (mode_t)mode;	1439	req->int2 = (mode_t)mode;
887	req->offs = dev;	1440	req->offs = dev;
		1441	req_set_path1 (req, pathname);
888		1442
889	REQ_SEND;	1443	REQ_SEND;
890	}	1444	}
891		1445
892	void	1446	void
		1447	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1448	ALIAS:
		1449	aio_mtouch = EIO_MTOUCH
		1450	aio_msync = EIO_MSYNC
		1451	PPCODE:
		1452	{
		1453	STRLEN svlen;
		1454	char *svptr = SvPVbyte (data, svlen);
		1455	UV len = SvUV (length);
		1456
		1457	if (offset < 0)
		1458	offset += svlen;
		1459
		1460	if (offset < 0 || offset > svlen)
		1461	croak ("offset outside of scalar");
		1462
		1463	if (!SvOK (length) || len + offset > svlen)
		1464	len = svlen - offset;
		1465
		1466	{
		1467	dREQ;
		1468
		1469	req->type = ix;
		1470	req->sv2 = SvREFCNT_inc (data);
		1471	req->ptr2 = (char *)svptr + offset;
		1472	req->size = len;
		1473	req->int1 = flags;
		1474
		1475	REQ_SEND;
		1476	}
		1477	}
		1478
		1479	void
		1480	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1481	PPCODE:
		1482	{
		1483	STRLEN svlen;
		1484	char *svptr = SvPVbyte (data, svlen);
		1485	UV len = SvUV (length);
		1486
		1487	if (offset < 0)
		1488	offset += svlen;
		1489
		1490	if (offset < 0 || offset > svlen)
		1491	croak ("offset outside of scalar");
		1492
		1493	if (!SvOK (length) || len + offset > svlen)
		1494	len = svlen - offset;
		1495
		1496	{
		1497	dREQ;
		1498
		1499	req->type = EIO_MLOCK;
		1500	req->sv2 = SvREFCNT_inc (data);
		1501	req->ptr2 = (char *)svptr + offset;
		1502	req->size = len;
		1503
		1504	REQ_SEND;
		1505	}
		1506	}
		1507
		1508	void
		1509	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1510	PPCODE:
		1511	{
		1512	dREQ;
		1513
		1514	req->type = EIO_MLOCKALL;
		1515	req->int1 = flags;
		1516
		1517	REQ_SEND;
		1518	}
		1519
		1520	void
		1521	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1522	PPCODE:
		1523	{
		1524	int fd = s_fileno_croak (fh, 0);
		1525	dREQ;
		1526
		1527	req->type = EIO_CUSTOM;
		1528	req->sv1 = newSVsv (fh);
		1529	req->int1 = fd;
		1530
		1531	req->feed = fiemap;
		1532	#if HAVE_FIEMAP
		1533	/* keep our fingers crossed that the next two types are 64 bit */
		1534	req->offs = start;
		1535	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1536	req->int2 = flags;
		1537	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1538	#endif
		1539
		1540	REQ_SEND;
		1541	}
		1542
		1543	void
893	aio_busy (double delay, SV *callback=&PL_sv_undef)	1544	aio_busy (double delay, SV *callback=&PL_sv_undef)
894	PPCODE:	1545	PPCODE:
895	{	1546	{
896	dREQ;	1547	dREQ;
897		1548
…		…
901	REQ_SEND;	1552	REQ_SEND;
902	}	1553	}
903		1554
904	void	1555	void
905	aio_group (SV *callback=&PL_sv_undef)	1556	aio_group (SV *callback=&PL_sv_undef)
906	PROTOTYPE: ;$
907	PPCODE:	1557	PPCODE:
908	{	1558	{
909	dREQ;	1559	dREQ;
910		1560
911	req->type = EIO_GROUP;	1561	req->type = EIO_GROUP;
912		1562
913	eio_submit (req);	1563	req_submit (req);
914	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1564	XPUSHs (req_sv (req, aio_grp_stash));
915	}	1565	}
916		1566
917	void	1567	void
918	aio_nop (SV *callback=&PL_sv_undef)	1568	aio_nop (SV *callback=&PL_sv_undef)
919	ALIAS:	1569	ALIAS:
…		…
928	REQ_SEND;	1578	REQ_SEND;
929	}	1579	}
930		1580
931	int	1581	int
932	aioreq_pri (int pri = 0)	1582	aioreq_pri (int pri = 0)
933	PROTOTYPE: ;$
934	CODE:	1583	CODE:
935	RETVAL = next_pri - EIO_PRI_BIAS;	1584	RETVAL = next_pri;
936	if (items > 0)	1585	if (items > 0)
937	{	1586	{
938	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
939	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1588	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
940	next_pri = pri + EIO_PRI_BIAS;	1589	next_pri = pri;
941	}	1590	}
942	OUTPUT:	1591	OUTPUT:
943	RETVAL	1592	RETVAL
944		1593
945	void	1594	void
946	aioreq_nice (int nice = 0)	1595	aioreq_nice (int nice = 0)
947	CODE:	1596	CODE:
948	nice = next_pri - nice;	1597	nice = next_pri - nice;
949	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1598	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
950	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1599	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
951	next_pri = nice + EIO_PRI_BIAS;	1600	next_pri = nice;
952		1601
953	void	1602	void
954	flush ()	1603	flush ()
955	PROTOTYPE:
956	CODE:	1604	CODE:
957	while (eio_nreqs ())	1605	while (eio_nreqs ())
958	{	1606	{
959	poll_wait ();	1607	poll_wait ();
960	poll_cb ();	1608	poll_cb ();
961	}	1609	}
962		1610
963	int	1611	int
964	poll()	1612	poll ()
965	PROTOTYPE:
966	CODE:	1613	CODE:
967	poll_wait ();	1614	poll_wait ();
968	RETVAL = poll_cb ();	1615	RETVAL = poll_cb ();
969	OUTPUT:	1616	OUTPUT:
970	RETVAL	1617	RETVAL
971		1618
972	int	1619	int
973	poll_fileno()	1620	poll_fileno ()
974	PROTOTYPE:
975	CODE:	1621	CODE:
976	RETVAL = respipe [0];	1622	RETVAL = s_epipe_fd (&respipe);
977	OUTPUT:	1623	OUTPUT:
978	RETVAL	1624	RETVAL
979		1625
980	int	1626	int
981	poll_cb(...)	1627	poll_cb (...)
982	PROTOTYPE:	1628	PROTOTYPE:
983	CODE:	1629	CODE:
984	RETVAL = poll_cb ();	1630	RETVAL = poll_cb ();
985	OUTPUT:	1631	OUTPUT:
986	RETVAL	1632	RETVAL
987		1633
988	void	1634	void
989	poll_wait()	1635	poll_wait ()
990	PROTOTYPE:
991	CODE:	1636	CODE:
992	poll_wait ();	1637	poll_wait ();
993		1638
994	int	1639	int
995	nreqs()	1640	nreqs ()
996	PROTOTYPE:
997	CODE:	1641	CODE:
998	RETVAL = eio_nreqs ();	1642	RETVAL = eio_nreqs ();
999	OUTPUT:	1643	OUTPUT:
1000	RETVAL	1644	RETVAL
1001		1645
1002	int	1646	int
1003	nready()	1647	nready ()
1004	PROTOTYPE:
1005	CODE:	1648	CODE:
1006	RETVAL = eio_nready ();	1649	RETVAL = eio_nready ();
1007	OUTPUT:	1650	OUTPUT:
1008	RETVAL	1651	RETVAL
1009		1652
1010	int	1653	int
1011	npending()	1654	npending ()
1012	PROTOTYPE:
1013	CODE:	1655	CODE:
1014	RETVAL = eio_npending ();	1656	RETVAL = eio_npending ();
1015	OUTPUT:	1657	OUTPUT:
1016	RETVAL	1658	RETVAL
1017		1659
1018	int	1660	int
1019	nthreads()	1661	nthreads ()
1020	PROTOTYPE:
1021	CODE:	1662	CODE:
1022	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1663	RETVAL = eio_nthreads ();
1023	RETVAL = started;
1024	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1025	OUTPUT:	1664	OUTPUT:
1026	RETVAL	1665	RETVAL
		1666
		1667	int
		1668	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1669	CODE:
		1670	RETVAL = posix_fadvise (fh, offset, length, advice);
		1671	OUTPUT:
		1672	RETVAL
		1673
		1674	IV
		1675	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1676	CODE:
		1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1678	OUTPUT:
		1679	RETVAL
		1680
		1681	void
		1682	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1683	PPCODE:
		1684	sv_unmagic (scalar, MMAP_MAGIC);
		1685	{
		1686	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1688	if (addr == (void *)-1)
		1689	XSRETURN_NO;
		1690
		1691	sv_force_normal (scalar);
		1692
		1693	/* we store the length in mg_obj, as namlen is I32 :/ */
		1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1695	->mg_obj = (SV *)length;
		1696
		1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1698
		1699	if (!(prot & PROT_WRITE))
		1700	SvREADONLY_on (scalar);
		1701
		1702	if (SvLEN (scalar))
		1703	Safefree (SvPVX (scalar));
		1704
		1705	SvPVX (scalar) = (char *)addr;
		1706	SvCUR_set (scalar, length);
		1707	SvLEN_set (scalar, 0);
		1708	SvPOK_only (scalar);
		1709
		1710	XSRETURN_YES;
		1711	}
		1712
		1713	void
		1714	munmap (SV *scalar)
		1715	CODE:
		1716	sv_unmagic (scalar, MMAP_MAGIC);
		1717
		1718	int
		1719	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1720	ALIAS:
		1721	mprotect = 1
		1722	CODE:
		1723	{
		1724	STRLEN svlen;
		1725	void *addr = SvPVbyte (scalar, svlen);
		1726	size_t len = SvUV (length);
		1727
		1728	if (offset < 0)
		1729	offset += svlen;
		1730
		1731	if (offset < 0 || offset > svlen)
		1732	croak ("offset outside of scalar");
		1733
		1734	if (!SvOK (length) || len + offset > svlen)
		1735	len = svlen - offset;
		1736
		1737	addr = (void *)(((intptr_t)addr) + offset);
		1738	eio_page_align (&addr, &len);
		1739
		1740	switch (ix)
		1741	{
		1742	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1743	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1744	}
		1745	}
		1746	OUTPUT:
		1747	RETVAL
		1748
		1749	int
		1750	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1751	CODE:
		1752	{
		1753	STRLEN svlen;
		1754	void *addr = SvPVbyte (scalar, svlen);
		1755	size_t len = SvUV (length);
		1756
		1757	if (offset < 0)
		1758	offset += svlen;
		1759
		1760	if (offset < 0 || offset > svlen)
		1761	croak ("offset outside of scalar");
		1762
		1763	if (!SvOK (length) || len + offset > svlen)
		1764	len = svlen - offset;
		1765
		1766	addr = (void *)(((intptr_t)addr) + offset);
		1767	eio_page_align (&addr, &len);
		1768	#if _POSIX_MEMLOCK_RANGE
		1769	RETVAL = munlock (addr, len);
		1770	#else
		1771	RETVAL = ((errno = ENOSYS), -1);
		1772	#endif
		1773	}
		1774	OUTPUT:
		1775	RETVAL
		1776
		1777	int
		1778	munlockall ()
		1779	CODE:
		1780	#if _POSIX_MEMLOCK
		1781	munlockall ();
		1782	#else
		1783	RETVAL = -1;
		1784	errno = ENOSYS;
		1785	#endif
		1786	OUTPUT:
		1787	RETVAL
1027		1788
1028	void _on_next_submit (SV *cb)	1789	void _on_next_submit (SV *cb)
1029	CODE:	1790	CODE:
1030	SvREFCNT_dec (on_next_submit);	1791	SvREFCNT_dec (on_next_submit);
1031	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1032		1793
1033	PROTOTYPES: DISABLE	1794	PROTOTYPES: DISABLE
1034		1795
		1796	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1797
		1798	BOOT:
		1799	{
		1800	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1801	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1802	}
		1803
		1804	void
		1805	DESTROY (SV *self)
		1806	CODE:
		1807	{
		1808	aio_wd wd = SvAIO_WD (self);
		1809	#if HAVE_AT
		1810	{
		1811	SV *callback = &PL_sv_undef;
		1812	dREQ; /* clobbers next_pri :/ */
		1813	next_pri = req->pri; /* restore next_pri */
		1814	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1815	req->type = EIO_WD_CLOSE;
		1816	req->wd = wd;
		1817	REQ_SEND;
		1818	}
		1819	#else
		1820	eio_wd_close_sync (wd);
		1821	#endif
		1822	}
		1823
1035	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1824	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1036		1825
1037	void	1826	void
1038	cancel (aio_req_ornot req)	1827	cancel (aio_req_ornot req)
1039	CODE:	1828	CODE:
1040	eio_cancel (req);	1829	eio_cancel (req);
1041		1830
1042	void	1831	void
1043	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1832	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1044	CODE:	1833	PPCODE:
		1834	{
		1835	if (GIMME_V != G_VOID)
		1836	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1837
		1838	if (items > 1)
		1839	{
		1840	SV *cb_cv =get_cb (callback);
		1841
1045	SvREFCNT_dec (req->callback);	1842	SvREFCNT_dec (req->callback);
1046	req->callback = newSVsv (callback);	1843	req->callback = SvREFCNT_inc (cb_cv);
		1844	}
		1845	}
1047		1846
1048	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1847	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1049		1848
1050	void	1849	void
1051	add (aio_req grp, ...)	1850	add (aio_req grp, ...)
…		…
1083	AV *av;	1882	AV *av;
1084		1883
1085	grp->errorno = errno;	1884	grp->errorno = errno;
1086		1885
1087	av = newAV ();	1886	av = newAV ();
		1887	av_extend (av, items - 1);
1088		1888
1089	for (i = 1; i < items; ++i )	1889	for (i = 1; i < items; ++i )
1090	av_push (av, newSVsv (ST (i)));	1890	av_push (av, newSVsv (ST (i)));
1091		1891
1092	SvREFCNT_dec (grp->sv1);	1892	SvREFCNT_dec (grp->sv1);
…		…
1106	void	1906	void
1107	feed (aio_req grp, SV *callback=&PL_sv_undef)	1907	feed (aio_req grp, SV *callback=&PL_sv_undef)
1108	CODE:	1908	CODE:
1109	{	1909	{
1110	SvREFCNT_dec (grp->sv2);	1910	SvREFCNT_dec (grp->sv2);
1111	grp->sv2 = newSVsv (callback);	1911	grp->sv2 = newSVsv (callback);
		1912	grp->feed = aio_grp_feed;
1112		1913
1113	if (grp->int2 <= 0)	1914	if (grp->int2 <= 0)
1114	grp->int2 = 2;	1915	grp->int2 = 2;
1115		1916
1116	eio_grp_limit (grp, grp->int2);	1917	eio_grp_limit (grp, grp->int2);

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