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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.116 by root, Sat May 10 19:25:33 2008 UTC vs.
Revision 1.210 by root, Fri Apr 6 11:39:25 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/fiemap.h>
		28	# define HAVE_FIEMAP 1
		29	# endif
		30	#endif
		31
		32	/* perl namespace pollution */
		33	#undef VERSION
		34
		35	/* perl stupidly overrides readdir and maybe others */
		36	/* with thread-unsafe versions, imagine that :( */
		37	#undef readdir
		38	#undef opendir
		39	#undef closedir
		40
18	#ifdef _WIN32	41	#ifdef _WIN32
19		42
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	43	// perl overrides all those nice libc functions
		44
		45	#undef malloc
		46	#undef free
25	# undef open	47	#undef open
26	# undef read	48	#undef read
27	# undef write	49	#undef write
28	# undef send	50	#undef send
29	# undef recv	51	#undef recv
30	# undef stat	52	#undef stat
		53	#undef lstat
31	# undef fstat	54	#undef fstat
32	# define lstat stat
33	# undef truncate	55	#undef truncate
34	# undef ftruncate	56	#undef ftruncate
35	# undef open	57	#undef open
		58	#undef link
36	# undef close	59	#undef close
37	# undef unlink	60	#undef unlink
		61	#undef mkdir
38	# undef rmdir	62	#undef rmdir
39	# undef rename	63	#undef rename
40	# undef lseek	64	#undef lseek
		65	#undef opendir
		66	#undef readdir
		67	#undef closedir
		68	#undef chmod
		69	#undef fchmod
		70	#undef dup
		71	#undef dup2
		72	#undef abort
		73	#undef pipe
41		74
42	# define chown(a,b,c) (errno = ENOSYS, -1)	75	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	76	#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		77
56	#else	78	#else
57		79
58	# include <sys/time.h>	80	#include <sys/time.h>
59	# include <sys/select.h>	81	#include <sys/select.h>
60	# include <unistd.h>	82	#include <unistd.h>
61	# include <utime.h>	83	#include <utime.h>
62	# include <signal.h>	84	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent	85
		86	#define EIO_STRUCT_STAT Stat_t
64		87
65	#endif	88	#endif
66		89
67	#define EIO_STRUCT_STAT Stat_t	90	/*****************************************************************************/
68		91
69	/* use NV for 32 bit perls as it allows larger offsets */	92	#if __GNUC__ >= 3
70	#if IVSIZE >= 8	93	# define expect(expr,value) __builtin_expect ((expr),(value))
71	# define SvVAL64 SvIV
72	#else	94	#else
73	# define SvVAL64 SvNV	95	# define expect(expr,value) (expr)
74	#endif	96	#endif
75		97
76	static HV *stash;	98	#define expect_false(expr) expect ((expr) != 0, 0)
		99	#define expect_true(expr) expect ((expr) != 0, 1)
		100
		101	/*****************************************************************************/
		102
77	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
		104	typedef int aio_rfd; /* read file desriptor */
		105	typedef int aio_wfd; /* write file descriptor */
78		106
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		108
82	#define EIO_COMMON \	109	#define EIO_REQ_MEMBERS \
83	SV *callback; \	110	SV *callback; \
84	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
85	STRLEN stroffset; \	113	STRLEN stroffset; \
86	SV *self	114	SV *self;
87		115
		116	#define EIO_NO_WRAPPERS 1
		117
		118	#include "libeio/config.h"
88	#include "libeio/eio.h"	119	#include "libeio/eio.h"
89		120
90	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	122	#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);	123	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
		125
		126	#include "libeio/eio.c"
		127
		128	#if !HAVE_POSIX_FADVISE
		129	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		130	#endif
		131
		132	#if !HAVE_POSIX_MADVISE
		133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		134	#endif
		135
		136	#ifndef MAP_ANONYMOUS
		137	# ifdef MAP_ANON
		138	# define MAP_ANONYMOUS MAP_ANON
		139	# else
		140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		141	# endif
		142	#endif
		143
		144	/* defines all sorts of constants to 0 unless they are already defined */
		145	#include "def0.h"
		146
		147	#ifndef makedev
		148	# define makedev(maj,min) (((maj) << 8) | (min))
		149	#endif
		150	#ifndef major
		151	# define major(dev) ((dev) >> 8)
		152	#endif
		153	#ifndef minor
		154	# define minor(dev) ((dev) & 0xff)
		155	#endif
		156
		157	#ifndef PAGESIZE
		158	# define PAGESIZE sysconf (_SC_PAGESIZE)
		159	#endif
		160
		161	/*****************************************************************************/
		162
		163	static void
		164	fiemap (eio_req *req)
		165	{
		166	req->result = -1;
		167
		168	#if HAVE_FIEMAP
		169	for (;;)
		170	{
		171	int count = req->int3;
		172
		173	if (count < 0)
		174	{
		175	struct fiemap fiemap;
		176
		177	fiemap.fm_start = req->offs;
		178	fiemap.fm_length = req->size;
		179	fiemap.fm_flags = req->int2;
		180	fiemap.fm_extent_count = 0;
		181
		182	if (ioctl (req->int1, FS_IOC_FIEMAP, &fiemap))
		183	return;
		184
		185	count = fiemap.fm_mapped_extents;
		186	}
		187
		188	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		189	errno = ENOMEM;
		190	if (!fiemap)
		191	return;
		192
		193	req->ptr1 = fiemap;
		194	req->flags |= EIO_FLAG_PTR1_FREE;
		195
		196	fiemap->fm_start = req->offs;
		197	fiemap->fm_length = req->size;
		198	fiemap->fm_flags = req->int2;
		199	fiemap->fm_extent_count = count;
		200
		201	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		202	return;
		203
		204	if (req->int3 >= 0)
		205	break; /* when not autosizing we are done */
		206
		207	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		208	break; /* autosizing successful, we are done */
		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
		230	static SV *on_next_submit;
		231	static int next_pri = EIO_PRI_DEFAULT;
106	static int max_outstanding = 0;	232	static int max_outstanding;
107		233
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	234	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
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
		320	req_submit (eio_req *req)
		321	{
		322	eio_submit (req);
		323
		324	if (expect_false (on_next_submit))
		325	{
		326	dSP;
		327	SV *cb = sv_2mortal (on_next_submit);
		328
		329	on_next_submit = 0;
		330
		331	PUSHMARK (SP);
		332	PUTBACK;
		333	call_sv (cb, G_DISCARD | G_EVAL);
		334	}
		335	}
		336
		337	static int
171	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
172	{	339	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
177		342
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	343	if (!EIO_CANCELLED (req) && req->callback)
179	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
180	ENTER;	349	ENTER;
181	SAVETMPS;	350	SAVETMPS;
182	PUSHMARK (SP);	351	PUSHMARK (SP);
183	EXTEND (SP, 1);	352	EXTEND (SP, 1);
184		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
185	switch (req->type)	367	switch (req->type)
186	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
187	case EIO_READDIR:	373	case EIO_READDIR:
188	{	374	{
189	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
190		376
191	if (req->result >= 0)	377	if (req->result >= 0)
192	{	378	{
193	int i;	379	int i;
194	char *buf = req->ptr2;	380	char *names = (char *)req->ptr2;
		381	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
195	AV *av = newAV ();	382	AV *av = newAV ();
196		383
197	av_extend (av, req->result - 1);	384	av_extend (av, req->result - 1);
198		385
199	for (i = 0; i < req->result; ++i)	386	for (i = 0; i < req->result; ++i)
200	{	387	{
201	SV *sv = newSVpv (buf, 0);	388	if (req->int1 & EIO_READDIR_DENTS)
		389	{
		390	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		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
203	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);
204	buf += SvCUR (sv) + 1;	420	names += SvCUR (name) + 1;
		421	}
205	}	422	}
206		423
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	424	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	425	}
209		426
210	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))));
211	}	431	}
212	break;	432	break;
213		433
214	case EIO_OPEN:	434	case EIO_OPEN:
215	{	435	{
…		…
221	GV *gv = (GV *)sv_newmortal ();	441	GV *gv = (GV *)sv_newmortal ();
222	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	442	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223	char sym [64];	443	char sym [64];
224	int symlen;	444	int symlen;
225		445
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	446	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
227	gv_init (gv, stash, sym, symlen, 0);	447	gv_init (gv, aio_stash, sym, symlen, 0);
228		448
229	symlen = snprintf (	449	symlen = snprintf (
230	sym,	450	sym,
231	sizeof (sym),	451	sizeof (sym),
232	"%s&=%d",	452	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	453	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result	454	(int)req->result
235	);	455	);
236		456
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	457	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238	fh = (SV *)gv;	458	fh = (SV *)gv;
239	}	459	}
240		460
241	PUSHs (fh);	461	PUSHs (fh);
242	}	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
243	break;	495	break;
244		496
245	case EIO_GROUP:	497	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
247		499
…		…
259	case EIO_NOP:	511	case EIO_NOP:
260	case EIO_BUSY:	512	case EIO_BUSY:
261	break;	513	break;
262		514
263	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
264	if (req->result > 0)	517	if (req->result > 0)
265	{	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
266	SvCUR_set (req->sv2, req->result);
267	*SvEND (req->sv2) = 0;
268	PUSHs (req->sv2);
269	}
270	break;	519	break;
271		520
272	case EIO_STAT:	521	case EIO_STAT:
273	case EIO_LSTAT:	522	case EIO_LSTAT:
274	case EIO_FSTAT:	523	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
276	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
277	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
279	break;	531	break;
280		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		535	break;
		536
281	case EIO_READ:	537	case EIO_READ:
		538	{
282	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));
283	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	541	SvPOK_only (req->sv2);
		542	SvSETMAGIC (req->sv2);
		543	PUSHs (sv_result);
		544	}
285	break;	545	break;
286		546
287	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	if (!req->result)
		551	{
		552	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		553
		554	if (fiemap->fm_extent_count)
		555	{
		556	AV *av = newAV ();
		557	int i;
		558
		559	while (fiemap->fm_mapped_extents)
		560	{
		561	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		562	AV *ext_av = newAV ();
		563
		564	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		565	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		566	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		567	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		568
		569	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		570	}
		571
		572	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		573	}
		574	else
		575	{
		576	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		577	PUSHs (sv_result);
		578	}
		579	}
		580	}
		581	else
		582	PUSHs (sv_result);
		583	break;
		584
		585	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
288	if (req->result > 0)	586	if (req->result > 0)
289	req->result = 0;	587	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	588	/* FALLTHROUGH */
291		589
292	default:	590	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	591	PUSHs (sv_result);
294	break;	592	break;
295	}	593	}
296		594
297	errno = req->errorno;	595	errno = req->errorno;
298		596
299	PUTBACK;	597	PUTBACK;
300	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	598	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301	SPAGAIN;	599	SPAGAIN;
302		600
		601	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		602	SvREFCNT_dec (sv_result);
		603	else
		604	sv_result_cache = sv_result;
		605
303	FREETMPS;	606	FREETMPS;
304	LEAVE;	607	LEAVE;
305		608
306	PUTBACK;	609	PUTBACK;
307	}	610	}
308		611
309	return !!SvTRUE (ERRSV);	612	return !!SvTRUE (ERRSV);
310	}	613	}
311		614
		615	static void
312	static void req_destroy (aio_req req)	616	req_destroy (aio_req req)
313	{	617	{
314	if (req->self)	618	if (req->self)
315	{	619	{
316	sv_unmagic (req->self, PERL_MAGIC_ext);	620	sv_unmagic (req->self, PERL_MAGIC_ext);
317	SvREFCNT_dec (req->self);	621	SvREFCNT_dec (req->self);
318	}	622	}
319		623
320	SvREFCNT_dec (req->sv1);	624	SvREFCNT_dec (req->sv1);
321	SvREFCNT_dec (req->sv2);	625	SvREFCNT_dec (req->sv2);
		626	SvREFCNT_dec (req->sv3);
		627	SvREFCNT_dec (req->sv4);
322	SvREFCNT_dec (req->callback);	628	SvREFCNT_dec (req->callback);
323		629
324	Safefree (req);	630	free (req);
325	}	631	}
326		632
		633	static void
327	static void req_cancel_subs (aio_req grp)	634	req_cancel_subs (aio_req grp)
328	{	635	{
329	aio_req sub;
330
331	if (grp->type != EIO_GROUP)	636	if (grp->type != EIO_GROUP)
332	return;	637	return;
333		638
334	SvREFCNT_dec (grp->sv2);	639	SvREFCNT_dec (grp->sv2);
335	grp->sv2 = 0;	640	grp->sv2 = 0;
336		641
337	eio_grp_cancel (grp);	642	eio_grp_cancel (grp);
338	}	643	}
339		644
340	#ifdef USE_SOCKETS_AS_HANDLES	645	static void ecb_cold
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))	646	create_respipe (void)
342	#else	647	{
343	# define TO_SOCKET(x) (x)	648	if (s_epipe_renew (&respipe))
344	#endif	649	croak ("IO::AIO: unable to initialize result pipe");
		650	}
345		651
346	static void	652	static void
347	create_respipe (void)	653	poll_wait (void)
348	{	654	{
349	int old_readfd = respipe [0];
350
351	if (respipe [1] >= 0)
352	respipe_close (TO_SOCKET (respipe [1]));
353
354	#ifdef _WIN32
355	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
356	#else
357	if (pipe (respipe))
358	#endif
359	croak ("unable to initialize result pipe");
360
361	if (old_readfd >= 0)
362	{
363	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
364	croak ("unable to initialize result pipe(2)");
365
366	respipe_close (respipe [0]);
367	respipe [0] = old_readfd;
368	}
369
370	#ifdef _WIN32
371	int arg = 1;
372	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
373	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
374	#else
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
376	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
377	#endif
378	croak ("unable to initialize result pipe(3)");
379
380	respipe_osf [0] = TO_SOCKET (respipe [0]);
381	respipe_osf [1] = TO_SOCKET (respipe [1]);
382	}
383
384	static void poll_wait (void)
385	{
386	fd_set rfd;
387
388	while (eio_nreqs ())	655	while (eio_nreqs ())
389	{	656	{
390	int size;	657	int size;
391		658
392	X_LOCK (reslock);	659	X_LOCK (reslock);
…		…
394	X_UNLOCK (reslock);	661	X_UNLOCK (reslock);
395		662
396	if (size)	663	if (size)
397	return;	664	return;
398		665
399	maybe_start_thread ();	666	etp_maybe_start_thread ();
400		667
401	FD_ZERO (&rfd);	668	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	669	}
406	}	670	}
407		671
408	static int poll_cb (void)	672	static int
		673	poll_cb (void)
409	{	674	{
410	int res;	675	for (;;)
411
412	do
413	{	676	{
414	res = eio_poll ();	677	int res = eio_poll ();
415		678
416	if (res > 0)	679	if (res > 0)
417	croak (0);	680	croak (0);
		681
		682	if (!max_outstanding || max_outstanding > eio_nreqs ())
		683	return res;
		684
		685	poll_wait ();
418	}	686	}
419	while (max_outstanding && max_outstanding <= eio_nreqs ());
420
421	return res;
422	}	687	}
423		688
424	static void atfork_child (void)	689	static void ecb_cold
		690	reinit (void)
425	{	691	{
426	create_respipe ();	692	create_respipe ();
		693
		694	if (eio_init (want_poll, done_poll) < 0)
		695	croak ("IO::AIO: unable to initialise eio library");
		696	}
		697
		698	/*****************************************************************************/
		699
		700	#if !_POSIX_MAPPED_FILES
		701	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		702	# define munmap(addr,length) (errno = ENOSYS, -1)
		703	#endif
		704
		705	#if !_POSIX_MEMORY_PROTECTION
		706	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		707	# define PROT_NONE 0
		708	# define PROT_WRITE 0
		709	# define MAP_PRIVATE 0
		710	# define MAP_SHARED 0
		711	# define MAP_FIXED 0
		712	#endif
		713
		714	#define MMAP_MAGIC PERL_MAGIC_ext
		715
		716	static int ecb_cold
		717	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		718	{
		719	int old_errno = errno;
		720	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		721	errno = old_errno;
		722
		723	mg->mg_obj = 0; /* just in case */
		724
		725	SvREADONLY_off (sv);
		726
		727	if (SvPVX (sv) != mg->mg_ptr)
		728	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		729
		730	SvCUR_set (sv, 0);
		731	SvPVX (sv) = 0;
		732	SvOK_off (sv);
		733
		734	return 0;
		735	}
		736
		737	static MGVTBL mmap_vtbl = {
		738	0, 0, 0, 0, mmap_free
		739	};
		740
		741	/*****************************************************************************/
		742
		743	static SV *
		744	get_cb (SV *cb_sv)
		745	{
		746	SvGETMAGIC (cb_sv);
		747	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		748	}
		749
		750	static aio_req ecb_noinline
		751	dreq (SV *callback)
		752	{
		753	SV *cb_cv;
		754	aio_req req;
		755	int req_pri = next_pri;
		756	next_pri = EIO_PRI_DEFAULT;
		757
		758	cb_cv = get_cb (callback);
		759
		760	req = calloc (sizeof (*req), 1);
		761	if (!req)
		762	croak ("out of memory during eio_req allocation");
		763
		764	req->callback = SvREFCNT_inc (cb_cv);
		765	req->pri = req_pri;
		766
		767	return req;
427	}	768	}
428		769
429	#define dREQ \	770	#define dREQ \
430	aio_req req; \	771	aio_req req = dreq (callback); \
431	int req_pri = next_pri; \
432	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
433	\
434	if (SvOK (callback) && !SvROK (callback)) \
435	croak ("callback must be undef or of reference type"); \
436	\
437	Newz (0, req, 1, eio_req); \
438	if (!req) \
439	croak ("out of memory during eio_req allocation"); \
440	\
441	req->callback = newSVsv (callback); \
442	req->pri = req_pri
443		772
444	#define REQ_SEND \	773	#define REQ_SEND \
		774	PUTBACK; \
445	eio_submit (req); \	775	req_submit (req); \
		776	SPAGAIN; \
446	\	777	\
447	if (GIMME_V != G_VOID) \	778	if (GIMME_V != G_VOID) \
448	XPUSHs (req_sv (req, AIO_REQ_KLASS));	779	XPUSHs (req_sv (req, aio_req_stash));
449		780
		781	ecb_inline void
		782	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		783	{
		784	if (expect_false (SvROK (path)))
		785	{
		786	SV *rv = SvRV (path);
		787	SV *wdob;
		788
		789	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		790	{
		791	path = AvARRAY (rv)[1];
		792	wdob = AvARRAY (rv)[0];
		793
		794	if (SvOK (wdob))
		795	{
		796	*wd = SvAIO_WD (wdob);
		797	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		798	}
		799	else
		800	*wd = EIO_INVALID_WD;
		801	}
		802	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		803	{
		804	*wd = (aio_wd)(long)SvIVX (rv);
		805	*wdsv = SvREFCNT_inc_NN (rv);
		806	*ptr = ".";
		807	return; /* path set to "." */
		808	}
		809	else
		810	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		811	}
		812
		813	*pathsv = newSVsv (path);
		814	*ptr = SvPVbyte_nolen (*pathsv);
		815	}
		816
		817	static void ecb_noinline
		818	req_set_path1 (aio_req req, SV *path)
		819	{
		820	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		821	}
		822
		823	static void ecb_noinline
		824	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		825	{
		826	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		827
		828	switch (SvTYPE (rv))
		829	{
		830	case SVt_PVIO:
		831	case SVt_PVLV:
		832	case SVt_PVGV:
		833	req->type = type_fh;
		834	req->sv1 = newSVsv (fh_or_path);
		835	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		836	break;
		837
		838	default:
		839	req->type = type_path;
		840	req_set_path1 (req, fh_or_path);
		841	break;
		842	}
		843	}
		844
		845	XS(boot_IO__AIO) ecb_cold;
		846
450	MODULE = IO::AIO PACKAGE = IO::AIO	847	MODULE = IO::AIO PACKAGE = IO::AIO
451		848
452	PROTOTYPES: ENABLE	849	PROTOTYPES: ENABLE
453		850
454	BOOT:	851	BOOT:
455	{	852	{
		853	static const struct {
		854	const char *name;
		855	IV iv;
		856	} *civ, const_iv[] = {
		857	# define const_niv(name, value) { # name, (IV) value },
		858	# define const_iv(name) { # name, (IV) name },
		859	# define const_eio(name) { # name, (IV) EIO_ ## name },
		860
		861	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		862
		863	const_iv (ENOSYS)
		864	const_iv (EXDEV)
		865	const_iv (EBADR)
		866
		867	const_iv (O_RDONLY)
		868	const_iv (O_WRONLY)
		869	const_iv (O_RDWR)
		870	const_iv (O_CREAT)
		871	const_iv (O_TRUNC)
		872	const_iv (O_EXCL)
		873	const_iv (O_APPEND)
		874
		875	const_iv (O_ASYNC)
		876	const_iv (O_DIRECT)
		877	const_iv (O_NOATIME)
		878
		879	const_iv (O_CLOEXEC)
		880	const_iv (O_NOCTTY)
		881	const_iv (O_NOFOLLOW)
		882	const_iv (O_NONBLOCK)
		883	const_iv (O_EXEC)
		884	const_iv (O_SEARCH)
		885	const_iv (O_DIRECTORY)
		886	const_iv (O_DSYNC)
		887	const_iv (O_RSYNC)
		888	const_iv (O_SYNC)
		889	const_iv (O_TTY_INIT)
		890
		891	const_iv (S_IFIFO)
		892	const_iv (S_IFCHR)
		893	const_iv (S_IFBLK)
		894	const_iv (S_IFLNK)
		895	const_iv (S_IFREG)
		896	const_iv (S_IFDIR)
		897	const_iv (S_IFWHT)
		898	const_iv (S_IFSOCK)
		899	const_iv (S_IFMT)
		900
		901	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		902	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		903	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		904	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		905	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		906	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		907
		908	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		909	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		910	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		911	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		912	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		913
		914	const_iv (ST_RDONLY)
		915	const_iv (ST_NOSUID)
		916	const_iv (ST_NODEV)
		917	const_iv (ST_NOEXEC)
		918	const_iv (ST_SYNCHRONOUS)
		919	const_iv (ST_MANDLOCK)
		920	const_iv (ST_WRITE)
		921	const_iv (ST_APPEND)
		922	const_iv (ST_IMMUTABLE)
		923	const_iv (ST_NOATIME)
		924	const_iv (ST_NODIRATIME)
		925	const_iv (ST_RELATIME)
		926
		927	const_iv (PROT_NONE)
		928	const_iv (PROT_EXEC)
		929	const_iv (PROT_READ)
		930	const_iv (PROT_WRITE)
		931
		932	/*const_iv (MAP_FIXED)*/
		933	const_iv (MAP_PRIVATE)
		934	const_iv (MAP_SHARED)
		935	const_iv (MAP_ANONYMOUS)
		936
		937	/* linuxish */
		938	const_iv (MAP_HUGETLB)
		939	const_iv (MAP_LOCKED)
		940	const_iv (MAP_NORESERVE)
		941	const_iv (MAP_POPULATE)
		942	const_iv (MAP_NONBLOCK)
		943
		944	const_iv (FIEMAP_FLAG_SYNC)
		945	const_iv (FIEMAP_FLAG_XATTR)
		946	const_iv (FIEMAP_FLAGS_COMPAT)
		947	const_iv (FIEMAP_EXTENT_LAST)
		948	const_iv (FIEMAP_EXTENT_UNKNOWN)
		949	const_iv (FIEMAP_EXTENT_DELALLOC)
		950	const_iv (FIEMAP_EXTENT_ENCODED)
		951	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		952	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		953	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		954	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		955	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		956	const_iv (FIEMAP_EXTENT_MERGED)
		957	const_iv (FIEMAP_EXTENT_SHARED)
		958
		959	const_eio (SEEK_SET)
		960	const_eio (SEEK_CUR)
		961	const_eio (SEEK_END)
		962
		963	const_eio (MCL_FUTURE)
		964	const_eio (MCL_CURRENT)
		965
		966	const_eio (MS_ASYNC)
		967	const_eio (MS_INVALIDATE)
		968	const_eio (MS_SYNC)
		969
		970	const_eio (MT_MODIFY)
		971
		972	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		973	const_eio (SYNC_FILE_RANGE_WRITE)
		974	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		975
		976	const_eio (FALLOC_FL_KEEP_SIZE)
		977
		978	const_eio (READDIR_DENTS)
		979	const_eio (READDIR_DIRS_FIRST)
		980	const_eio (READDIR_STAT_ORDER)
		981	const_eio (READDIR_FOUND_UNKNOWN)
		982
		983	const_eio (DT_UNKNOWN)
		984	const_eio (DT_FIFO)
		985	const_eio (DT_CHR)
		986	const_eio (DT_DIR)
		987	const_eio (DT_BLK)
		988	const_eio (DT_REG)
		989	const_eio (DT_LNK)
		990	const_eio (DT_SOCK)
		991	const_eio (DT_WHT)
		992	};
		993
456	stash = gv_stashpv ("IO::AIO", 1);	994	aio_stash = gv_stashpv ("IO::AIO" , 1);
		995	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		996	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		997	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
457		998
458	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	999	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
459	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1000	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
460	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
461	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
462	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
463	#ifdef _WIN32
464	X_MUTEX_CHECK (wrklock);
465	X_MUTEX_CHECK (reslock);
466	X_MUTEX_CHECK (reqlock);
467	X_MUTEX_CHECK (reqwait);
468	X_MUTEX_CHECK (preadwritelock);
469	X_MUTEX_CHECK (readdirlock);
470		1001
471	X_COND_CHECK (reqwait);	1002	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
472	#else
473	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
474	#endif
475		1003
476	create_respipe ();	1004	reinit ();
477
478	if (eio_init (want_poll, done_poll) < 0)
479	croak ("IO::AIO: unable to initialise eio library");
480
481	/* atfork child called in fifo order, so before eio's handler */
482	X_THREAD_ATFORK (0, 0, atfork_child);
483	}	1005	}
484		1006
485	void	1007	void
		1008	reinit ()
		1009	PROTOTYPE:
		1010
		1011	void
486	max_poll_reqs (int nreqs)	1012	max_poll_reqs (unsigned int nreqs)
487	PROTOTYPE: $	1013	PROTOTYPE: $
488	CODE:	1014	CODE:
489	eio_set_max_poll_reqs (nreqs);	1015	eio_set_max_poll_reqs (nreqs);
490		1016
491	void	1017	void
…		…
493	PROTOTYPE: $	1019	PROTOTYPE: $
494	CODE:	1020	CODE:
495	eio_set_max_poll_time (nseconds);	1021	eio_set_max_poll_time (nseconds);
496		1022
497	void	1023	void
498	min_parallel (int nthreads)	1024	min_parallel (unsigned int nthreads)
499	PROTOTYPE: $	1025	PROTOTYPE: $
500	CODE:	1026	CODE:
501	eio_set_min_parallel (nthreads);	1027	eio_set_min_parallel (nthreads);
502		1028
503	void	1029	void
504	max_parallel (int nthreads)	1030	max_parallel (unsigned int nthreads)
505	PROTOTYPE: $	1031	PROTOTYPE: $
506	CODE:	1032	CODE:
507	eio_set_max_parallel (nthreads);	1033	eio_set_max_parallel (nthreads);
508		1034
509	void	1035	void
510	max_idle (int nthreads)	1036	max_idle (unsigned int nthreads)
511	PROTOTYPE: $	1037	PROTOTYPE: $
512	CODE:	1038	CODE:
513	eio_set_max_idle (nthreads);	1039	eio_set_max_idle (nthreads);
514		1040
515	void	1041	void
		1042	idle_timeout (unsigned int seconds)
		1043	PROTOTYPE: $
		1044	CODE:
		1045	eio_set_idle_timeout (seconds);
		1046
		1047	void
516	max_outstanding (int maxreqs)	1048	max_outstanding (unsigned int maxreqs)
517	PROTOTYPE: $	1049	PROTOTYPE: $
518	CODE:	1050	CODE:
519	max_outstanding = maxreqs;	1051	max_outstanding = maxreqs;
520		1052
521	void	1053	void
		1054	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1055	PPCODE:
		1056	{
		1057	dREQ;
		1058
		1059	req->type = EIO_WD_OPEN;
		1060	req_set_path1 (req, pathname);
		1061
		1062	REQ_SEND;
		1063	}
		1064
		1065	void
522	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1066	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
523	PROTOTYPE: $$$;$
524	PPCODE:	1067	PPCODE:
525	{	1068	{
526	dREQ;	1069	dREQ;
527		1070
528	req->type = EIO_OPEN;	1071	req->type = EIO_OPEN;
529	req->sv1 = newSVsv (pathname);	1072	req_set_path1 (req, pathname);
530	req->ptr1 = SvPVbyte_nolen (req->sv1);
531	req->int1 = flags;	1073	req->int1 = flags;
532	req->int2 = mode;	1074	req->int2 = mode;
533		1075
534	REQ_SEND;	1076	REQ_SEND;
535	}	1077	}
536		1078
537	void	1079	void
538	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1080	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $;$
540	ALIAS:	1081	ALIAS:
541	aio_fsync = EIO_FSYNC	1082	aio_fsync = EIO_FSYNC
542	aio_fdatasync = EIO_FDATASYNC	1083	aio_fdatasync = EIO_FDATASYNC
		1084	aio_syncfs = EIO_SYNCFS
543	PPCODE:	1085	PPCODE:
544	{	1086	{
		1087	int fd = s_fileno_croak (fh, 0);
545	dREQ;	1088	dREQ;
546		1089
547	req->type = ix;	1090	req->type = ix;
548	req->sv1 = newSVsv (fh);	1091	req->sv1 = newSVsv (fh);
549	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1092	req->int1 = fd;
550		1093
551	REQ_SEND (req);	1094	REQ_SEND;
		1095	}
		1096
		1097	void
		1098	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1099	PPCODE:
		1100	{
		1101	int fd = s_fileno_croak (fh, 0);
		1102	dREQ;
		1103
		1104	req->type = EIO_SYNC_FILE_RANGE;
		1105	req->sv1 = newSVsv (fh);
		1106	req->int1 = fd;
		1107	req->offs = offset;
		1108	req->size = nbytes;
		1109	req->int2 = flags;
		1110
		1111	REQ_SEND;
		1112	}
		1113
		1114	void
		1115	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1116	PPCODE:
		1117	{
		1118	int fd = s_fileno_croak (fh, 0);
		1119	dREQ;
		1120
		1121	req->type = EIO_FALLOCATE;
		1122	req->sv1 = newSVsv (fh);
		1123	req->int1 = fd;
		1124	req->int2 = mode;
		1125	req->offs = offset;
		1126	req->size = len;
		1127
		1128	REQ_SEND;
552	}	1129	}
553		1130
554	void	1131	void
555	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1132	aio_close (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	PPCODE:	1133	PPCODE:
558	{	1134	{
559	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1135	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1136	int fd = s_fileno_croak (fh, 0);
560	dREQ;	1137	dREQ;
561		1138
562	if (close_pipe < 0)	1139	if (expect_false (close_fd < 0))
563	{	1140	{
564	int pipefd [2];	1141	int pipefd [2];
565		1142
		1143	if (
		1144	#ifdef _WIN32
		1145	_pipe (pipefd, 1, _O_BINARY) < 0
		1146	#else
566	if (pipe (pipefd) < 0	1147	pipe (pipefd) < 0
567	|| close (pipefd [1]) < 0
568	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1148	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1149	#endif
		1150	|| close (pipefd [1]) < 0
		1151	)
569	abort (); /*D*/	1152	abort (); /*D*/
570		1153
571	close_pipe = pipefd [0];	1154	close_fd = pipefd [0];
572	}	1155	}
573		1156
574	req->type = EIO_DUP2;	1157	req->type = EIO_DUP2;
575	req->int1 = close_pipe;	1158	req->int1 = close_fd;
576	req->sv2 = newSVsv (fh);	1159	req->sv2 = newSVsv (fh);
577	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1160	req->int2 = fd;
578		1161
579	REQ_SEND (req);	1162	REQ_SEND;
		1163	}
		1164
		1165	void
		1166	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1167	PPCODE:
		1168	{
		1169	STRLEN svlen;
		1170	int fd = s_fileno_croak (fh, 0);
		1171	dREQ;
		1172
		1173	req->type = EIO_SEEK;
		1174	req->sv1 = newSVsv (fh);
		1175	req->int1 = fd;
		1176	req->offs = SvVAL64 (offset);
		1177	req->int2 = whence;
		1178
		1179	REQ_SEND;
580	}	1180	}
581		1181
582	void	1182	void
583	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
584	ALIAS:	1184	ALIAS:
585	aio_read = EIO_READ	1185	aio_read = EIO_READ
586	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
587	PROTOTYPE: $$$$$;$
588	PPCODE:	1187	PPCODE:
589	{	1188	{
590	STRLEN svlen;	1189	STRLEN svlen;
		1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
591	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
592	UV len = SvUV (length);	1192	UV len = SvUV (length);
593
594	SvUPGRADE (data, SVt_PV);
595	SvPOK_on (data);
596		1193
597	if (dataoffset < 0)	1194	if (dataoffset < 0)
598	dataoffset += svlen;	1195	dataoffset += svlen;
599		1196
600	if (dataoffset < 0 || dataoffset > svlen)	1197	if (dataoffset < 0 || dataoffset > svlen)
…		…
606	if (!SvOK (length) || len + dataoffset > svlen)	1203	if (!SvOK (length) || len + dataoffset > svlen)
607	len = svlen - dataoffset;	1204	len = svlen - dataoffset;
608	}	1205	}
609	else	1206	else
610	{	1207	{
611	/* read: grow scalar as necessary */	1208	/* read: check type and grow scalar as necessary */
		1209	SvUPGRADE (data, SVt_PV);
612	svptr = SvGROW (data, len + dataoffset + 1);	1210	svptr = SvGROW (data, len + dataoffset + 1);
613	}	1211	}
614		1212
615	if (len < 0)
616	croak ("length must not be negative");
617
618	{	1213	{
619	dREQ;	1214	dREQ;
620		1215
621	req->type = ix;	1216	req->type = ix;
622	req->sv1 = newSVsv (fh);	1217	req->sv1 = newSVsv (fh);
623	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1218	req->int1 = fd;
624	: IoOFP (sv_2io (fh)));
625	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1219	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
626	req->size = len;	1220	req->size = len;
627	req->sv2 = SvREFCNT_inc (data);	1221	req->sv2 = SvREFCNT_inc (data);
628	req->ptr2 = (char *)svptr + dataoffset;	1222	req->ptr2 = (char *)svptr + dataoffset;
629	req->stroffset = dataoffset;	1223	req->stroffset = dataoffset;
…		…
637	REQ_SEND;	1231	REQ_SEND;
638	}	1232	}
639	}	1233	}
640		1234
641	void	1235	void
642	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
643	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
644	PPCODE:	1240	PPCODE:
645	{	1241	{
646	SV *data;
647	dREQ;	1242	dREQ;
648		1243
649	data = newSV (NAME_MAX);
650	SvPOK_on (data);
651
652	req->type = EIO_READLINK;	1244	req->type = ix;
653	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
654	req->ptr1 = SvPVbyte_nolen (req->sv1);
655	req->sv2 = data;
656	req->ptr2 = SvPVbyte_nolen (data);
657		1246
658	REQ_SEND;	1247	REQ_SEND;
659	}	1248	}
660		1249
661	void	1250	void
662	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$$$;$
664	PPCODE:	1252	PPCODE:
665	{	1253	{
		1254	int ifd = s_fileno_croak (in_fh , 0);
		1255	int ofd = s_fileno_croak (out_fh, 1);
666	dREQ;	1256	dREQ;
667		1257
668	req->type = EIO_SENDFILE;	1258	req->type = EIO_SENDFILE;
669	req->sv1 = newSVsv (out_fh);	1259	req->sv1 = newSVsv (out_fh);
670	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1260	req->int1 = ofd;
671	req->sv2 = newSVsv (in_fh);	1261	req->sv2 = newSVsv (in_fh);
672	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1262	req->int2 = ifd;
673	req->offs = SvVAL64 (in_offset);	1263	req->offs = in_offset;
674	req->size = length;	1264	req->size = length;
675		1265
676	REQ_SEND;	1266	REQ_SEND;
677	}	1267	}
678		1268
679	void	1269	void
680	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
681	PROTOTYPE: $$$;$
682	PPCODE:	1271	PPCODE:
683	{	1272	{
		1273	int fd = s_fileno_croak (fh, 0);
684	dREQ;	1274	dREQ;
685		1275
686	req->type = EIO_READAHEAD;	1276	req->type = EIO_READAHEAD;
687	req->sv1 = newSVsv (fh);	1277	req->sv1 = newSVsv (fh);
688	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1278	req->int1 = fd;
689	req->offs = SvVAL64 (offset);	1279	req->offs = offset;
690	req->size = length;	1280	req->size = length;
691		1281
692	REQ_SEND;	1282	REQ_SEND;
693	}	1283	}
694		1284
695	void	1285	void
696	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
697	ALIAS:	1287	ALIAS:
698	aio_stat = EIO_STAT	1288	aio_stat = EIO_STAT
699	aio_lstat = EIO_LSTAT	1289	aio_lstat = EIO_LSTAT
		1290	aio_statvfs = EIO_STATVFS
700	PPCODE:	1291	PPCODE:
701	{	1292	{
702	dREQ;	1293	dREQ;
703		1294
704	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
705	if (!req->ptr2)
706	{
707	req_destroy (req);
708	croak ("out of memory during aio_stat statdata allocation");
709	}
710
711	req->flags |= EIO_FLAG_PTR2_FREE;
712	req->sv1 = newSVsv (fh_or_path);
713
714	if (SvPOK (fh_or_path))
715	{
716	req->type = ix;
717	req->ptr1 = SvPVbyte_nolen (req->sv1);
718	}
719	else
720	{
721	req->type = EIO_FSTAT;
722	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
723	}
724		1296
725	REQ_SEND;	1297	REQ_SEND;
726	}	1298	}
		1299
		1300	UV
		1301	major (UV dev)
		1302	ALIAS:
		1303	minor = 1
		1304	CODE:
		1305	RETVAL = ix ? major (dev) : minor (dev);
		1306	OUTPUT:
		1307	RETVAL
		1308
		1309	UV
		1310	makedev (UV maj, UV min)
		1311	CODE:
		1312	RETVAL = makedev (maj, min);
		1313	OUTPUT:
		1314	RETVAL
727		1315
728	void	1316	void
729	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
730	PPCODE:	1318	PPCODE:
731	{	1319	{
732	dREQ;	1320	dREQ;
733		1321
734	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
735	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
736	req->sv1 = newSVsv (fh_or_path);	1324	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
737
738	if (SvPOK (fh_or_path))
739	{
740	req->type = EIO_UTIME;
741	req->ptr1 = SvPVbyte_nolen (req->sv1);
742	}
743	else
744	{
745	req->type = EIO_FUTIME;
746	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
747	}
748		1325
749	REQ_SEND;	1326	REQ_SEND;
750	}	1327	}
751		1328
752	void	1329	void
753	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
754	PPCODE:	1331	PPCODE:
755	{	1332	{
756	dREQ;	1333	dREQ;
757		1334
758	req->sv1 = newSVsv (fh_or_path);
759	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
760		1336	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
761	if (SvPOK (fh_or_path))
762	{
763	req->type = EIO_TRUNCATE;
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765	}
766	else
767	{
768	req->type = EIO_FTRUNCATE;
769	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
770	}
771		1337
772	REQ_SEND;	1338	REQ_SEND;
773	}	1339	}
774		1340
775	void	1341	void
776	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
777	ALIAS:
778	aio_chmod = EIO_CHMOD
779	aio_fchmod = EIO_FCHMOD
780	aio_mkdir = EIO_MKDIR
781	PPCODE:	1343	PPCODE:
782	{	1344	{
783	dREQ;	1345	dREQ;
784		1346
785	req->type = ix;
786	req->int2 = mode;	1347	req->int2 = mode;
787	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
788
789	if (ix == EIO_FCHMOD)
790	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
791	else
792	req->ptr1 = SvPVbyte_nolen (req->sv1);
793		1349
794	REQ_SEND;	1350	REQ_SEND;
795	}	1351	}
796		1352
797	void	1353	void
…		…
800	{	1356	{
801	dREQ;	1357	dREQ;
802		1358
803	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
806		1362
807	if (SvPOK (fh_or_path))	1363	REQ_SEND;
808	{	1364	}
		1365
		1366	void
		1367	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1368	PPCODE:
		1369	{
		1370	dREQ;
		1371
		1372	req->type = EIO_READDIR;
		1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1374
		1375	if (flags & EIO_READDIR_DENTS)
		1376	req->int1 |= EIO_READDIR_CUSTOM2;
		1377
		1378	req_set_path1 (req, pathname);
		1379
		1380	REQ_SEND;
		1381	}
		1382
		1383	void
		1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1385	PPCODE:
		1386	{
		1387	dREQ;
		1388
809	req->type = EIO_CHOWN;	1389	req->type = EIO_MKDIR;
810	req->ptr1 = SvPVbyte_nolen (req->sv1);	1390	req->int2 = mode;
811	}	1391	req_set_path1 (req, pathname);
812	else
813	{
814	req->type = EIO_FCHOWN;
815	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
816	}
817		1392
818	REQ_SEND;	1393	REQ_SEND;
819	}	1394	}
820		1395
821	void	1396	void
…		…
827	PPCODE:	1402	PPCODE:
828	{	1403	{
829	dREQ;	1404	dREQ;
830		1405
831	req->type = ix;	1406	req->type = ix;
832	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
833	req->ptr1 = SvPVbyte_nolen (req->sv1);
834		1408
835	REQ_SEND;	1409	REQ_SEND;
836	}	1410	}
837		1411
838	void	1412	void
…		…
841	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
842	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
843	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
844	PPCODE:	1418	PPCODE:
845	{	1419	{
		1420	eio_wd wd2 = 0;
846	dREQ;	1421	dREQ;
847		1422
848	req->type = ix;	1423	req->type = ix;
849	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
851	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
852	req->ptr2 = SvPVbyte_nolen (req->sv2);
853		1427
854	REQ_SEND;	1428	REQ_SEND;
855	}	1429	}
856		1430
857	void	1431	void
…		…
859	PPCODE:	1433	PPCODE:
860	{	1434	{
861	dREQ;	1435	dREQ;
862		1436
863	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
864	req->sv1 = newSVsv (pathname);
865	req->ptr1 = SvPVbyte_nolen (req->sv1);
866	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
867	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
868		1441
869	REQ_SEND;	1442	REQ_SEND;
870	}	1443	}
871		1444
872	void	1445	void
		1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1447	ALIAS:
		1448	aio_mtouch = EIO_MTOUCH
		1449	aio_msync = EIO_MSYNC
		1450	PPCODE:
		1451	{
		1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
		1454	UV len = SvUV (length);
		1455
		1456	if (offset < 0)
		1457	offset += svlen;
		1458
		1459	if (offset < 0 || offset > svlen)
		1460	croak ("offset outside of scalar");
		1461
		1462	if (!SvOK (length) || len + offset > svlen)
		1463	len = svlen - offset;
		1464
		1465	{
		1466	dREQ;
		1467
		1468	req->type = ix;
		1469	req->sv2 = SvREFCNT_inc (data);
		1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
		1472	req->int1 = flags;
		1473
		1474	REQ_SEND;
		1475	}
		1476	}
		1477
		1478	void
		1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1480	PPCODE:
		1481	{
		1482	STRLEN svlen;
		1483	char *svptr = SvPVbyte (data, svlen);
		1484	UV len = SvUV (length);
		1485
		1486	if (offset < 0)
		1487	offset += svlen;
		1488
		1489	if (offset < 0 || offset > svlen)
		1490	croak ("offset outside of scalar");
		1491
		1492	if (!SvOK (length) || len + offset > svlen)
		1493	len = svlen - offset;
		1494
		1495	{
		1496	dREQ;
		1497
		1498	req->type = EIO_MLOCK;
		1499	req->sv2 = SvREFCNT_inc (data);
		1500	req->ptr2 = (char *)svptr + offset;
		1501	req->size = len;
		1502
		1503	REQ_SEND;
		1504	}
		1505	}
		1506
		1507	void
		1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1509	PPCODE:
		1510	{
		1511	dREQ;
		1512
		1513	req->type = EIO_MLOCKALL;
		1514	req->int1 = flags;
		1515
		1516	REQ_SEND;
		1517	}
		1518
		1519	void
		1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1521	PPCODE:
		1522	{
		1523	int fd = s_fileno_croak (fh, 0);
		1524	dREQ;
		1525
		1526	req->type = EIO_CUSTOM;
		1527	req->sv1 = newSVsv (fh);
		1528	req->int1 = fd;
		1529
		1530	req->feed = fiemap;
		1531	/* keep our fingers crossed that the next two types are 64 bit */
		1532	req->offs = start;
		1533	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1534	req->int2 = flags;
		1535	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1536
		1537	REQ_SEND;
		1538	}
		1539
		1540	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1541	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1542	PPCODE:
875	{	1543	{
876	dREQ;	1544	dREQ;
877		1545
…		…
881	REQ_SEND;	1549	REQ_SEND;
882	}	1550	}
883		1551
884	void	1552	void
885	aio_group (SV *callback=&PL_sv_undef)	1553	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1554	PPCODE:
888	{	1555	{
889	dREQ;	1556	dREQ;
890		1557
891	req->type = EIO_GROUP;	1558	req->type = EIO_GROUP;
892		1559
893	eio_submit (req);	1560	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1561	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1562	}
896		1563
897	void	1564	void
898	aio_nop (SV *callback=&PL_sv_undef)	1565	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1566	ALIAS:
…		…
908	REQ_SEND;	1575	REQ_SEND;
909	}	1576	}
910		1577
911	int	1578	int
912	aioreq_pri (int pri = 0)	1579	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1580	CODE:
915	RETVAL = next_pri - EIO_PRI_BIAS;	1581	RETVAL = next_pri;
916	if (items > 0)	1582	if (items > 0)
917	{	1583	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1584	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
919	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1585	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
920	next_pri = pri + EIO_PRI_BIAS;	1586	next_pri = pri;
921	}	1587	}
922	OUTPUT:	1588	OUTPUT:
923	RETVAL	1589	RETVAL
924		1590
925	void	1591	void
926	aioreq_nice (int nice = 0)	1592	aioreq_nice (int nice = 0)
927	CODE:	1593	CODE:
928	nice = next_pri - nice;	1594	nice = next_pri - nice;
929	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1595	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1596	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice + EIO_PRI_BIAS;	1597	next_pri = nice;
932		1598
933	void	1599	void
934	flush ()	1600	flush ()
935	PROTOTYPE:
936	CODE:	1601	CODE:
937	while (eio_nreqs ())	1602	while (eio_nreqs ())
938	{	1603	{
939	poll_wait ();	1604	poll_wait ();
940	poll_cb ();	1605	poll_cb ();
941	}	1606	}
942		1607
943	int	1608	int
944	poll()	1609	poll ()
945	PROTOTYPE:
946	CODE:	1610	CODE:
947	poll_wait ();	1611	poll_wait ();
948	RETVAL = poll_cb ();	1612	RETVAL = poll_cb ();
949	OUTPUT:	1613	OUTPUT:
950	RETVAL	1614	RETVAL
951		1615
952	int	1616	int
953	poll_fileno()	1617	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1618	CODE:
956	RETVAL = respipe [0];	1619	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1620	OUTPUT:
958	RETVAL	1621	RETVAL
959		1622
960	int	1623	int
961	poll_cb(...)	1624	poll_cb (...)
962	PROTOTYPE:	1625	PROTOTYPE:
963	CODE:	1626	CODE:
964	RETVAL = poll_cb ();	1627	RETVAL = poll_cb ();
965	OUTPUT:	1628	OUTPUT:
966	RETVAL	1629	RETVAL
967		1630
968	void	1631	void
969	poll_wait()	1632	poll_wait ()
970	PROTOTYPE:
971	CODE:	1633	CODE:
972	poll_wait ();	1634	poll_wait ();
973		1635
974	int	1636	int
975	nreqs()	1637	nreqs ()
976	PROTOTYPE:
977	CODE:	1638	CODE:
978	RETVAL = eio_nreqs ();	1639	RETVAL = eio_nreqs ();
979	OUTPUT:	1640	OUTPUT:
980	RETVAL	1641	RETVAL
981		1642
982	int	1643	int
983	nready()	1644	nready ()
984	PROTOTYPE:
985	CODE:	1645	CODE:
986	RETVAL = eio_nready ();	1646	RETVAL = eio_nready ();
987	OUTPUT:	1647	OUTPUT:
988	RETVAL	1648	RETVAL
989		1649
990	int	1650	int
991	npending()	1651	npending ()
992	PROTOTYPE:
993	CODE:	1652	CODE:
994	RETVAL = eio_npending ();	1653	RETVAL = eio_npending ();
995	OUTPUT:	1654	OUTPUT:
996	RETVAL	1655	RETVAL
997		1656
998	int	1657	int
999	nthreads()	1658	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1659	CODE:
1002	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1660	RETVAL = eio_nthreads ();
1003	RETVAL = started;
1004	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1005	OUTPUT:	1661	OUTPUT:
1006	RETVAL	1662	RETVAL
1007		1663
		1664	int
		1665	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1666	CODE:
		1667	RETVAL = posix_fadvise (fh, offset, length, advice);
		1668	OUTPUT:
		1669	RETVAL
		1670
		1671	IV
		1672	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1673	CODE:
		1674	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1675	OUTPUT:
		1676	RETVAL
		1677
		1678	void
		1679	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1680	PPCODE:
		1681	sv_unmagic (scalar, MMAP_MAGIC);
		1682	{
		1683	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1684	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1685	if (addr == (void *)-1)
		1686	XSRETURN_NO;
		1687
		1688	sv_force_normal (scalar);
		1689
		1690	/* we store the length in mg_obj, as namlen is I32 :/ */
		1691	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1692	->mg_obj = (SV *)length;
		1693
		1694	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1695
		1696	if (!(prot & PROT_WRITE))
		1697	SvREADONLY_on (scalar);
		1698
		1699	if (SvLEN (scalar))
		1700	Safefree (SvPVX (scalar));
		1701
		1702	SvPVX (scalar) = (char *)addr;
		1703	SvCUR_set (scalar, length);
		1704	SvLEN_set (scalar, 0);
		1705	SvPOK_only (scalar);
		1706
		1707	XSRETURN_YES;
		1708	}
		1709
		1710	void
		1711	munmap (SV *scalar)
		1712	CODE:
		1713	sv_unmagic (scalar, MMAP_MAGIC);
		1714
		1715	int
		1716	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1717	ALIAS:
		1718	mprotect = 1
		1719	CODE:
		1720	{
		1721	STRLEN svlen;
		1722	void *addr = SvPVbyte (scalar, svlen);
		1723	size_t len = SvUV (length);
		1724
		1725	if (offset < 0)
		1726	offset += svlen;
		1727
		1728	if (offset < 0 || offset > svlen)
		1729	croak ("offset outside of scalar");
		1730
		1731	if (!SvOK (length) || len + offset > svlen)
		1732	len = svlen - offset;
		1733
		1734	addr = (void *)(((intptr_t)addr) + offset);
		1735	eio_page_align (&addr, &len);
		1736
		1737	switch (ix)
		1738	{
		1739	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1740	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1741	}
		1742	}
		1743	OUTPUT:
		1744	RETVAL
		1745
		1746	int
		1747	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1748	CODE:
		1749	{
		1750	STRLEN svlen;
		1751	void *addr = SvPVbyte (scalar, svlen);
		1752	size_t len = SvUV (length);
		1753
		1754	if (offset < 0)
		1755	offset += svlen;
		1756
		1757	if (offset < 0 || offset > svlen)
		1758	croak ("offset outside of scalar");
		1759
		1760	if (!SvOK (length) || len + offset > svlen)
		1761	len = svlen - offset;
		1762
		1763	addr = (void *)(((intptr_t)addr) + offset);
		1764	eio_page_align (&addr, &len);
		1765	#if _POSIX_MEMLOCK_RANGE
		1766	RETVAL = munlock (addr, len);
		1767	#else
		1768	RETVAL = ((errno = ENOSYS), -1);
		1769	#endif
		1770	}
		1771	OUTPUT:
		1772	RETVAL
		1773
		1774	int
		1775	munlockall ()
		1776	CODE:
		1777	#if _POSIX_MEMLOCK
		1778	munlockall ();
		1779	#else
		1780	RETVAL = -1;
		1781	errno = ENOSYS;
		1782	#endif
		1783	OUTPUT:
		1784	RETVAL
		1785
		1786	void _on_next_submit (SV *cb)
		1787	CODE:
		1788	SvREFCNT_dec (on_next_submit);
		1789	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1790
1008	PROTOTYPES: DISABLE	1791	PROTOTYPES: DISABLE
		1792
		1793	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1794
		1795	BOOT:
		1796	{
		1797	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1798	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1799	}
		1800
		1801	void
		1802	DESTROY (SV *self)
		1803	CODE:
		1804	{
		1805	aio_wd wd = SvAIO_WD (self);
		1806	#if HAVE_AT
		1807	{
		1808	SV *callback = &PL_sv_undef;
		1809	dREQ; /* clobbers next_pri :/ */
		1810	next_pri = req->pri; /* restore next_pri */
		1811	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1812	req->type = EIO_WD_CLOSE;
		1813	req->wd = wd;
		1814	REQ_SEND;
		1815	}
		1816	#else
		1817	eio_wd_close_sync (wd);
		1818	#endif
		1819	}
1009		1820
1010	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1821	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1011		1822
1012	void	1823	void
1013	cancel (aio_req_ornot req)	1824	cancel (aio_req_ornot req)
1014	CODE:	1825	CODE:
1015	eio_cancel (req);	1826	eio_cancel (req);
1016		1827
1017	void	1828	void
1018	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1829	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1019	CODE:	1830	PPCODE:
		1831	{
		1832	if (GIMME_V != G_VOID)
		1833	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1834
		1835	if (items > 1)
		1836	{
		1837	SV *cb_cv =get_cb (callback);
		1838
1020	SvREFCNT_dec (req->callback);	1839	SvREFCNT_dec (req->callback);
1021	req->callback = newSVsv (callback);	1840	req->callback = SvREFCNT_inc (cb_cv);
		1841	}
		1842	}
1022		1843
1023	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1844	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1024		1845
1025	void	1846	void
1026	add (aio_req grp, ...)	1847	add (aio_req grp, ...)
…		…
1058	AV *av;	1879	AV *av;
1059		1880
1060	grp->errorno = errno;	1881	grp->errorno = errno;
1061		1882
1062	av = newAV ();	1883	av = newAV ();
		1884	av_extend (av, items - 1);
1063		1885
1064	for (i = 1; i < items; ++i )	1886	for (i = 1; i < items; ++i )
1065	av_push (av, newSVsv (ST (i)));	1887	av_push (av, newSVsv (ST (i)));
1066		1888
1067	SvREFCNT_dec (grp->sv1);	1889	SvREFCNT_dec (grp->sv1);
…		…
1081	void	1903	void
1082	feed (aio_req grp, SV *callback=&PL_sv_undef)	1904	feed (aio_req grp, SV *callback=&PL_sv_undef)
1083	CODE:	1905	CODE:
1084	{	1906	{
1085	SvREFCNT_dec (grp->sv2);	1907	SvREFCNT_dec (grp->sv2);
1086	grp->sv2 = newSVsv (callback);	1908	grp->sv2 = newSVsv (callback);
		1909	grp->feed = aio_grp_feed;
1087		1910
1088	if (grp->int2 <= 0)	1911	if (grp->int2 <= 0)
1089	grp->int2 = 2;	1912	grp->int2 = 2;
1090		1913
1091	eio_grp_limit (grp, grp->int2);	1914	eio_grp_limit (grp, grp->int2);

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