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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.122 by root, Tue May 13 19:35:16 2008 UTC vs.
Revision 1.187 by root, Sat Jul 16 16:46:10 2011 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
18	/* perl namespace pollution */	24	/* perl namespace pollution */
19	#undef VERSION	25	#undef VERSION
		26
		27	/* perl stupidly overrides readdir and maybe others */
		28	/* with thread-unsafe versions, imagine that :( */
		29	#undef readdir
		30	#undef opendir
		31	#undef closedir
20		32
21	#ifdef _WIN32	33	#ifdef _WIN32
22		34
23	# define EIO_STRUCT_DIRENT Direntry_t	35	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc	36	# undef malloc
…		…
28	# undef open	40	# undef open
29	# undef read	41	# undef read
30	# undef write	42	# undef write
31	# undef send	43	# undef send
32	# undef recv	44	# undef recv
33	# undef stat	45	# undef lstat
34	# undef fstat
35	# define lstat stat
36	# undef truncate	46	# undef truncate
37	# undef ftruncate	47	# undef ftruncate
38	# undef open	48	# undef open
		49	# undef link
39	# undef close	50	# undef close
40	# undef unlink	51	# undef unlink
		52	# undef mkdir
41	# undef rmdir	53	# undef rmdir
42	# undef rename	54	# undef rename
43	# undef lseek	55	# undef lseek
		56	# undef opendir
		57	# undef readdir
		58	# undef closedir
		59	# undef chmod
		60	# undef fchmod
44		61
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)	62	# define opendir(fd) EIO_ERRNO (ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)	63	# define readdir(fd) EIO_ENOSYS ()
56	# define closedir(fd) (errno = ENOSYS, -1)	64	# define closedir(fd) EIO_ENOSYS ()
57	# define mkdir(a,b) mkdir (a)
58		65
59	#else	66	#else
60		67
61	# include <sys/time.h>	68	# include <sys/time.h>
62	# include <sys/select.h>	69	# include <sys/select.h>
63	# include <unistd.h>	70	# include <unistd.h>
64	# include <utime.h>	71	# include <utime.h>
65	# include <signal.h>	72	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67		73
68	#endif	74	#endif
69		75
70	#define EIO_STRUCT_STAT Stat_t	76	#define EIO_STRUCT_STAT Stat_t
71		77
72	/* use NV for 32 bit perls as it allows larger offsets */	78	/* use NV for 32 bit perls as it allows larger offsets */
73	#if IVSIZE >= 8	79	#if IVSIZE >= 8
		80	# define VAL64 IV
74	# define SvVAL64 SvIV	81	# define SvVAL64 SvIV
		82	# define newSVval64 newSViv
75	#else	83	#else
		84	# define VAL64 NV
76	# define SvVAL64 SvNV	85	# define SvVAL64 SvNV
		86	# define newSVval64 newSVnv
77	#endif	87	#endif
78		88
79	static HV *stash;	89	/*****************************************************************************/
		90
		91	#if __GNUC__ >= 3
		92	# define expect(expr,value) __builtin_expect ((expr),(value))
		93	#else
		94	# define expect(expr,value) (expr)
		95	#endif
		96
		97	#define expect_false(expr) expect ((expr) != 0, 0)
		98	#define expect_true(expr) expect ((expr) != 0, 1)
		99
		100	/*****************************************************************************/
		101
80	typedef SV SV8; /* byte-sv, used for argument-checking */	102	typedef SV SV8; /* byte-sv, used for argument-checking */
		103	typedef int aio_rfd; /* read file desriptor */
		104	typedef int aio_wfd; /* write file descriptor */
81		105
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	106	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		107
85	#define EIO_REQ_MEMBERS \	108	#define EIO_REQ_MEMBERS \
86	SV *callback; \	109	SV *callback; \
87	SV *sv1, *sv2; \	110	SV *sv1, *sv2; \
88	STRLEN stroffset; \	111	STRLEN stroffset; \
89	SV *self;	112	SV *self;
90		113
91	#define EIO_NO_WRAPPERS 1	114	#define EIO_NO_WRAPPERS 1
92		115
		116	#include "libeio/config.h"
93	#include "libeio/eio.h"	117	#include "libeio/eio.h"
		118
		119	/* Linux/others */
		120	#ifndef O_ASYNC
		121	# define O_ASYNC 0
		122	#endif
		123	#ifndef O_DIRECT
		124	# define O_DIRECT 0
		125	#endif
		126	#ifndef O_NOATIME
		127	# define O_NOATIME 0
		128	#endif
		129
		130	/* POSIX */
		131	#ifndef O_CLOEXEC
		132	# define O_CLOEXEC 0
		133	#endif
		134	#ifndef O_NOFOLLOW
		135	# define O_NOFOLLOW 0
		136	#endif
		137	#ifndef O_NOCTTY
		138	# define O_NOCTTY 0
		139	#endif
		140	#ifndef O_NONBLOCK
		141	# define O_NONBLOCK 0
		142	#endif
		143	#ifndef O_EXEC
		144	# define O_EXEC 0
		145	#endif
		146	#ifndef O_SEARCH
		147	# define O_SEARCH 0
		148	#endif
		149	#ifndef O_DIRECTORY
		150	# define O_DIRECTORY 0
		151	#endif
		152	#ifndef O_DSYNC
		153	# define O_DSYNC 0
		154	#endif
		155	#ifndef O_RSYNC
		156	# define O_RSYNC 0
		157	#endif
		158	#ifndef O_SYNC
		159	# define O_SYNC 0
		160	#endif
		161	#ifndef O_TTY_INIT
		162	# define O_TTY_INIT 0
		163	#endif
		164
		165	#ifndef POSIX_FADV_NORMAL
		166	# define POSIX_FADV_NORMAL 0
		167	#endif
		168	#ifndef POSIX_FADV_SEQUENTIAL
		169	# define POSIX_FADV_SEQUENTIAL 0
		170	#endif
		171	#ifndef POSIX_FADV_RANDOM
		172	# define POSIX_FADV_RANDOM 0
		173	#endif
		174	#ifndef POSIX_FADV_NOREUSE
		175	# define POSIX_FADV_NOREUSE 0
		176	#endif
		177	#ifndef POSIX_FADV_WILLNEED
		178	# define POSIX_FADV_WILLNEED 0
		179	#endif
		180	#ifndef POSIX_FADV_DONTNEED
		181	# define POSIX_FADV_DONTNEED 0
		182	#endif
		183
		184	#if !HAVE_POSIX_FADVISE
		185	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		186	#endif
		187
		188	#ifndef POSIX_MADV_NORMAL
		189	# define POSIX_MADV_NORMAL 0
		190	#endif
		191	#ifndef POSIX_MADV_SEQUENTIAL
		192	# define POSIX_MADV_SEQUENTIAL 0
		193	#endif
		194	#ifndef POSIX_MADV_RANDOM
		195	# define POSIX_MADV_RANDOM 0
		196	#endif
		197	#ifndef POSIX_MADV_WILLNEED
		198	# define POSIX_MADV_WILLNEED 0
		199	#endif
		200	#ifndef POSIX_MADV_DONTNEED
		201	# define POSIX_MADV_DONTNEED 0
		202	#endif
		203
		204	#if !HAVE_POSIX_MADVISE
		205	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		206	#endif
		207
		208	#ifndef PROT_NONE
		209	# define PROT_NONE 0
		210	#endif
		211	#ifndef PROT_READ
		212	# define PROT_READ 0
		213	#endif
		214	#ifndef PROT_WRITE
		215	# define PROT_READ 0
		216	#endif
		217	#ifndef PROT_EXEC
		218	# define PROT_EXEC 0
		219	#endif
		220
		221	#ifndef ST_RDONLY
		222	# define ST_RDONLY 0
		223	#endif
		224	#ifndef ST_NOSUID
		225	# define ST_NOSUID 0
		226	#endif
		227	#ifndef ST_NODEV
		228	# define ST_NODEV 0
		229	#endif
		230	#ifndef ST_NOEXEC
		231	# define ST_NOEXEC 0
		232	#endif
		233	#ifndef ST_SYNCHRONOUS
		234	# define ST_SYNCHRONOUS 0
		235	#endif
		236	#ifndef ST_MANDLOCK
		237	# define ST_MANDLOCK 0
		238	#endif
		239	#ifndef ST_WRITE
		240	# define ST_WRITE 0
		241	#endif
		242	#ifndef ST_APPEND
		243	# define ST_APPEND 0
		244	#endif
		245	#ifndef ST_IMMUTABLE
		246	# define ST_IMMUTABLE 0
		247	#endif
		248	#ifndef ST_NOATIME
		249	# define ST_NOATIME 0
		250	#endif
		251	#ifndef ST_NODIRATIME
		252	# define ST_NODIRATIME 0
		253	#endif
		254	#ifndef ST_RELATIME
		255	# define ST_RELATIME 0
		256	#endif
		257
		258	#ifndef S_IFIFO
		259	# define S_IFIFO 0
		260	#endif
		261	#ifndef S_IFCHR
		262	# define S_IFCHR 0
		263	#endif
		264	#ifndef S_IFBLK
		265	# define S_IFBLK 0
		266	#endif
		267	#ifndef S_IFLNK
		268	# define S_IFLNK 0
		269	#endif
		270	#ifndef S_IFREG
		271	# define S_IFREG 0
		272	#endif
		273	#ifndef S_IFDIR
		274	# define S_IFDIR 0
		275	#endif
		276	#ifndef S_IFWHT
		277	# define S_IFWHT 0
		278	#endif
		279	#ifndef S_IFSOCK
		280	# define S_IFSOCK 0
		281	#endif
		282
		283	#ifndef MAP_ANONYMOUS
		284	# ifdef MAP_ANON
		285	# define MAP_ANONYMOUS MAP_ANON
		286	# else
		287	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		288	# endif
		289	#endif
		290	#ifndef MAP_HUGETLB
		291	# define MAP_HUGETLB 0
		292	#endif
		293	#ifndef MAP_LOCKED
		294	# define MAP_LOCKED 0
		295	#endif
		296	#ifndef MAP_NORESERVE
		297	# define MAP_NORESERVE 0
		298	#endif
		299	#ifndef MAP_POPULATE
		300	# define MAP_POPULATE 0
		301	#endif
		302	#ifndef MAP_NONBLOCK
		303	# define MAP_NONBLOCK 0
		304	#endif
		305
		306	#ifndef makedev
		307	# define makedev(maj,min) (((maj) << 8) | (min))
		308	#endif
		309	#ifndef major
		310	# define major(dev) ((dev) >> 8)
		311	#endif
		312	#ifndef minor
		313	# define minor(dev) ((dev) & 0xff)
		314	#endif
		315
		316	#ifndef PAGESIZE
		317	# define PAGESIZE sysconf (_SC_PAGESIZE)
		318	#endif
94		319
95	static int req_invoke (eio_req *req);	320	static int req_invoke (eio_req *req);
96	#define EIO_FINISH(req) req_invoke (req)	321	#define EIO_FINISH(req) req_invoke (req)
97	static void aio_grp_feed (eio_req *grp);
98	#define EIO_FEED(req) aio_grp_feed (req)
99	static void req_destroy (eio_req *grp);	322	static void req_destroy (eio_req *grp);
100	#define EIO_DESTROY(req) req_destroy (req)	323	#define EIO_DESTROY(req) req_destroy (req)
101		324
102	enum {	325	enum {
103	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	326	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
110		333
111	static SV *on_next_submit;	334	static SV *on_next_submit;
112	static int next_pri = EIO_PRI_DEFAULT;	335	static int next_pri = EIO_PRI_DEFAULT;
113	static int max_outstanding;	336	static int max_outstanding;
114		337
115	static int respipe_osf [2], respipe [2] = { -1, -1 };	338	static s_epipe respipe;
116		339
117	static void req_destroy (aio_req req);	340	static void req_destroy (aio_req req);
118	static void req_cancel (aio_req req);	341	static void req_cancel (aio_req req);
119		342
120	static void want_poll (void)	343	static void want_poll (void)
121	{	344	{
122	/* write a dummy byte to the pipe so fh becomes ready */	345	/* write a dummy byte to the pipe so fh becomes ready */
123	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	346	s_epipe_signal (&respipe);
124	}	347	}
125		348
126	static void done_poll (void)	349	static void done_poll (void)
127	{	350	{
128	/* read any signals sent by the worker threads */	351	/* read any signals sent by the worker threads */
129	char buf [4];	352	s_epipe_drain (&respipe);
130	while (respipe_read (respipe [0], buf, 4) == 4)
131	;
132	}	353	}
133		354
134	/* must be called at most once */	355	/* must be called at most once */
135	static SV *req_sv (aio_req req, const char *klass)	356	static SV *req_sv (aio_req req, HV *stash)
136	{	357	{
137	if (!req->self)	358	if (!req->self)
138	{	359	{
139	req->self = (SV *)newHV ();	360	req->self = (SV *)newHV ();
140	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	361	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
141	}	362	}
142		363
143	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	364	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
144	}	365	}
145		366
146	static aio_req SvAIO_REQ (SV *sv)	367	static aio_req SvAIO_REQ (SV *sv)
147	{	368	{
148	MAGIC *mg;	369	MAGIC *mg;
149		370
150	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	371	if (!SvROK (sv)
		372	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		373	&& SvSTASH (SvRV (sv)) != aio_req_stash
		374	&& !sv_derived_from (sv, "IO::AIO::REQ")))
151	croak ("object of class " AIO_REQ_KLASS " expected");	375	croak ("object of class IO::AIO::REQ expected");
152		376
153	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	377	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
154		378
155	return mg ? (aio_req)mg->mg_ptr : 0;	379	return mg ? (aio_req)mg->mg_ptr : 0;
156	}	380	}
…		…
162	dSP;	386	dSP;
163		387
164	ENTER;	388	ENTER;
165	SAVETMPS;	389	SAVETMPS;
166	PUSHMARK (SP);	390	PUSHMARK (SP);
167	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	391	XPUSHs (req_sv (grp, aio_grp_stash));
168	PUTBACK;	392	PUTBACK;
169	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	393	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
170	SPAGAIN;	394	SPAGAIN;
171	FREETMPS;	395	FREETMPS;
172	LEAVE;	396	LEAVE;
…		…
175		399
176	static void req_submit (eio_req *req)	400	static void req_submit (eio_req *req)
177	{	401	{
178	eio_submit (req);	402	eio_submit (req);
179		403
180	if (on_next_submit)	404	if (expect_false (on_next_submit))
181	{	405	{
182	dSP;	406	dSP;
183	SV *cb = sv_2mortal (on_next_submit);	407	SV *cb = sv_2mortal (on_next_submit);
184		408
185	on_next_submit = 0;	409	on_next_submit = 0;
…		…
190	}	414	}
191	}	415	}
192		416
193	static int req_invoke (eio_req *req)	417	static int req_invoke (eio_req *req)
194	{	418	{
195	dSP;
196
197	if (req->flags & FLAG_SV2_RO_OFF)	419	if (req->flags & FLAG_SV2_RO_OFF)
198	SvREADONLY_off (req->sv2);	420	SvREADONLY_off (req->sv2);
199		421
200	if (!EIO_CANCELLED (req) && SvOK (req->callback))	422	if (!EIO_CANCELLED (req) && req->callback)
201	{	423	{
		424	dSP;
		425	static SV *sv_result_cache; /* caches the result integer SV */
		426	SV *sv_result;
		427
202	ENTER;	428	ENTER;
203	SAVETMPS;	429	SAVETMPS;
204	PUSHMARK (SP);	430	PUSHMARK (SP);
205	EXTEND (SP, 1);	431	EXTEND (SP, 1);
		432
		433	/* do not recreate the result IV from scratch each time */
		434	if (expect_true (sv_result_cache))
		435	{
		436	sv_result = sv_result_cache; sv_result_cache = 0;
		437	SvIV_set (sv_result, req->result);
		438	SvIOK_only (sv_result);
		439	}
		440	else
		441	{
		442	sv_result = newSViv (req->result);
		443	SvREADONLY_on (sv_result);
		444	}
206		445
207	switch (req->type)	446	switch (req->type)
208	{	447	{
209	case EIO_READDIR:	448	case EIO_READDIR:
210	{	449	{
211	SV *rv = &PL_sv_undef;	450	SV *rv = &PL_sv_undef;
212		451
213	if (req->result >= 0)	452	if (req->result >= 0)
214	{	453	{
215	int i;	454	int i;
216	char *buf = req->ptr2;	455	char *names = (char *)req->ptr2;
		456	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
217	AV *av = newAV ();	457	AV *av = newAV ();
218		458
219	av_extend (av, req->result - 1);	459	av_extend (av, req->result - 1);
220		460
221	for (i = 0; i < req->result; ++i)	461	for (i = 0; i < req->result; ++i)
222	{	462	{
223	SV *sv = newSVpv (buf, 0);	463	if (req->int1 & EIO_READDIR_DENTS)
		464	{
		465	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
224		466
		467	if (req->int1 & EIO_READDIR_CUSTOM2)
		468	{
		469	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		470	AV *avent = newAV ();
		471
		472	av_extend (avent, 2);
		473
		474	if (!sv_type [ent->type])
		475	{
		476	sv_type [ent->type] = newSViv (ent->type);
		477	SvREADONLY_on (sv_type [ent->type]);
		478	}
		479
		480	av_store (avent, 0, namesv);
		481	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		482	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		483
		484	av_store (av, i, newRV_noinc ((SV *)avent));
		485	}
		486	else
225	av_store (av, i, sv);	487	av_store (av, i, namesv);
		488
		489	++ent;
		490	}
		491	else
		492	{
		493	SV *name = newSVpv (names, 0);
		494	av_store (av, i, name);
226	buf += SvCUR (sv) + 1;	495	names += SvCUR (name) + 1;
		496	}
227	}	497	}
228		498
229	rv = sv_2mortal (newRV_noinc ((SV *)av));	499	rv = sv_2mortal (newRV_noinc ((SV *)av));
230	}	500	}
231		501
232	PUSHs (rv);	502	PUSHs (rv);
		503
		504	if (req->int1 & EIO_READDIR_CUSTOM1)
		505	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
233	}	506	}
234	break;	507	break;
235		508
236	case EIO_OPEN:	509	case EIO_OPEN:
237	{	510	{
…		…
243	GV *gv = (GV *)sv_newmortal ();	516	GV *gv = (GV *)sv_newmortal ();
244	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	517	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
245	char sym [64];	518	char sym [64];
246	int symlen;	519	int symlen;
247		520
248	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	521	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
249	gv_init (gv, stash, sym, symlen, 0);	522	gv_init (gv, aio_stash, sym, symlen, 0);
250		523
251	symlen = snprintf (	524	symlen = snprintf (
252	sym,	525	sym,
253	sizeof (sym),	526	sizeof (sym),
254	"%s&=%d",	527	"%s&=%d",
255	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	528	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
256	req->result	529	(int)req->result
257	);	530	);
258		531
259	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	532	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
260	fh = (SV *)gv;	533	fh = (SV *)gv;
261	}	534	}
262		535
263	PUSHs (fh);	536	PUSHs (fh);
264	}	537	}
		538	break;
		539
		540	case EIO_STATVFS:
		541	case EIO_FSTATVFS:
		542	{
		543	SV *rv = &PL_sv_undef;
		544
		545	#ifndef _WIN32
		546	if (req->result >= 0)
		547	{
		548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		549	HV *hv = newHV ();
		550
		551	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		552
		553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		554	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		555	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		556	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		557	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		558	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		559	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		560	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		561	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		563	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		564	}
		565	#endif
		566
		567	PUSHs (rv);
		568	}
		569
265	break;	570	break;
266		571
267	case EIO_GROUP:	572	case EIO_GROUP:
268	req->int1 = 2; /* mark group as finished */	573	req->int1 = 2; /* mark group as finished */
269		574
…		…
281	case EIO_NOP:	586	case EIO_NOP:
282	case EIO_BUSY:	587	case EIO_BUSY:
283	break;	588	break;
284		589
285	case EIO_READLINK:	590	case EIO_READLINK:
		591	case EIO_REALPATH:
286	if (req->result > 0)	592	if (req->result > 0)
287	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	593	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
288	break;	594	break;
289		595
290	case EIO_STAT:	596	case EIO_STAT:
291	case EIO_LSTAT:	597	case EIO_LSTAT:
292	case EIO_FSTAT:	598	case EIO_FSTAT:
293	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	599	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
294	PL_laststatval = req->result;	600	PL_laststatval = req->result;
295	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	601	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
296	PUSHs (sv_2mortal (newSViv (req->result)));	602	PUSHs (sv_result);
297	break;	603	break;
298		604
299	case EIO_READ:	605	case EIO_READ:
		606	{
300	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	607	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
301	*SvEND (req->sv2) = 0;	608	*SvEND (req->sv2) = 0;
302	PUSHs (sv_2mortal (newSViv (req->result)));	609	SvPOK_only (req->sv2);
		610	SvSETMAGIC (req->sv2);
		611	PUSHs (sv_result);
		612	}
303	break;	613	break;
304		614
305	case EIO_DUP2:	615	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
306	if (req->result > 0)	616	if (req->result > 0)
307	req->result = 0;	617	SvIV_set (sv_result, 0);
308	/* FALLTHROUGH */	618	/* FALLTHROUGH */
309		619
310	default:	620	default:
311	PUSHs (sv_2mortal (newSViv (req->result)));	621	PUSHs (sv_result);
312	break;	622	break;
313	}	623	}
314		624
315	errno = req->errorno;	625	errno = req->errorno;
316		626
317	PUTBACK;	627	PUTBACK;
318	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	628	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
319	SPAGAIN;	629	SPAGAIN;
		630
		631	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		632	SvREFCNT_dec (sv_result);
		633	else
		634	sv_result_cache = sv_result;
320		635
321	FREETMPS;	636	FREETMPS;
322	LEAVE;	637	LEAVE;
323		638
324	PUTBACK;	639	PUTBACK;
…		…
353	grp->sv2 = 0;	668	grp->sv2 = 0;
354		669
355	eio_grp_cancel (grp);	670	eio_grp_cancel (grp);
356	}	671	}
357		672
358	#ifdef USE_SOCKETS_AS_HANDLES
359	# define TO_SOCKET(x) (win32_get_osfhandle (x))
360	#else
361	# define TO_SOCKET(x) (x)
362	#endif
363
364	static void
365	create_respipe (void)	673	static void create_respipe (void)
366	{	674	{
367	int old_readfd = respipe [0];
368
369	if (respipe [1] >= 0)
370	respipe_close (TO_SOCKET (respipe [1]));
371
372	#ifdef _WIN32
373	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
374	#else
375	if (pipe (respipe))	675	if (s_epipe_renew (&respipe))
376	#endif
377	croak ("unable to initialize result pipe");	676	croak ("IO::AIO: unable to initialize result pipe");
378
379	if (old_readfd >= 0)
380	{
381	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
382	croak ("unable to initialize result pipe(2)");
383
384	respipe_close (respipe [0]);
385	respipe [0] = old_readfd;
386	}
387
388	#ifdef _WIN32
389	int arg = 1;
390	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
391	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
392	#else
393	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
394	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
395	#endif
396	croak ("unable to initialize result pipe(3)");
397
398	respipe_osf [0] = TO_SOCKET (respipe [0]);
399	respipe_osf [1] = TO_SOCKET (respipe [1]);
400	}	677	}
401		678
402	static void poll_wait (void)	679	static void poll_wait (void)
403	{	680	{
404	fd_set rfd;
405
406	while (eio_nreqs ())	681	while (eio_nreqs ())
407	{	682	{
408	int size;	683	int size;
409		684
410	X_LOCK (reslock);	685	X_LOCK (reslock);
…		…
412	X_UNLOCK (reslock);	687	X_UNLOCK (reslock);
413		688
414	if (size)	689	if (size)
415	return;	690	return;
416		691
417	maybe_start_thread ();	692	etp_maybe_start_thread ();
418		693
419	FD_ZERO (&rfd);	694	s_epipe_wait (&respipe);
420	FD_SET (respipe [0], &rfd);
421
422	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
423	}	695	}
424	}	696	}
425		697
426	static int poll_cb (void)	698	static int poll_cb (void)
427	{	699	{
428	int res;	700	for (;;)
429
430	do
431	{	701	{
432	res = eio_poll ();	702	int res = eio_poll ();
433		703
434	if (res > 0)	704	if (res > 0)
435	croak (0);	705	croak (0);
		706
		707	if (!max_outstanding || max_outstanding > eio_nreqs ())
		708	return res;
		709
		710	poll_wait ();
436	}	711	}
437	while (max_outstanding && max_outstanding <= eio_nreqs ());
438
439	return res;
440	}	712	}
441		713
442	static void atfork_child (void)	714	static void atfork_child (void)
443	{	715	{
444	create_respipe ();	716	create_respipe ();
445	}	717	}
446		718
		719	/*****************************************************************************/
		720
		721	#if !_POSIX_MAPPED_FILES
		722	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		723	# define munmap(addr,length) (errno = ENOSYS, -1)
		724	#endif
		725
		726	#if !_POSIX_MEMORY_PROTECTION
		727	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		728	# define PROT_NONE 0
		729	# define PROT_WRITE 0
		730	# define MAP_PRIVATE 0
		731	# define MAP_SHARED 0
		732	# define MAP_FIXED 0
		733	#endif
		734
		735	#define MMAP_MAGIC PERL_MAGIC_ext
		736
		737	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		738	{
		739	int old_errno = errno;
		740	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		741	errno = old_errno;
		742
		743	mg->mg_obj = 0; /* just in case */
		744
		745	SvREADONLY_off (sv);
		746
		747	if (SvPVX (sv) != mg->mg_ptr)
		748	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		749
		750	SvCUR_set (sv, 0);
		751	SvPVX (sv) = 0;
		752	SvOK_off (sv);
		753
		754	return 0;
		755	}
		756
		757	static MGVTBL mmap_vtbl = {
		758	0, 0, 0, 0, mmap_free
		759	};
		760
		761	/*****************************************************************************/
		762
		763	static SV * get_cb (SV *cb_sv)
		764	{
		765	SvGETMAGIC (cb_sv);
		766	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		767	}
		768
447	#define dREQ \	769	#define dREQ \
		770	SV *cb_cv; \
448	aio_req req; \	771	aio_req req; \
449	int req_pri = next_pri; \	772	int req_pri = next_pri; \
450	next_pri = EIO_PRI_DEFAULT; \	773	next_pri = EIO_PRI_DEFAULT; \
451	\	774	\
452	if (SvOK (callback) && !SvROK (callback)) \	775	cb_cv = get_cb (callback); \
453	croak ("callback must be undef or of reference type"); \
454	\	776	\
455	Newz (0, req, 1, eio_req); \	777	Newz (0, req, 1, eio_req); \
456	if (!req) \	778	if (!req) \
457	croak ("out of memory during eio_req allocation"); \	779	croak ("out of memory during eio_req allocation"); \
458	\	780	\
459	req->callback = newSVsv (callback); \	781	req->callback = SvREFCNT_inc (cb_cv); \
460	req->pri = req_pri	782	req->pri = req_pri
461		783
462	#define REQ_SEND \	784	#define REQ_SEND \
		785	PUTBACK; \
463	req_submit (req); \	786	req_submit (req); \
		787	SPAGAIN; \
464	\	788	\
465	if (GIMME_V != G_VOID) \	789	if (GIMME_V != G_VOID) \
466	XPUSHs (req_sv (req, AIO_REQ_KLASS));	790	XPUSHs (req_sv (req, aio_req_stash));
467		791
468	MODULE = IO::AIO PACKAGE = IO::AIO	792	MODULE = IO::AIO PACKAGE = IO::AIO
469		793
470	PROTOTYPES: ENABLE	794	PROTOTYPES: ENABLE
471		795
472	BOOT:	796	BOOT:
473	{	797	{
		798	static const struct {
		799	const char *name;
		800	IV iv;
		801	} *civ, const_iv[] = {
		802	# define const_niv(name, value) { # name, (IV) value },
		803	# define const_iv(name) { # name, (IV) name },
		804	# define const_eio(name) { # name, (IV) EIO_ ## name },
		805	const_iv (EXDEV)
		806	const_iv (ENOSYS)
		807	const_iv (O_RDONLY)
		808	const_iv (O_WRONLY)
		809	const_iv (O_RDWR)
		810	const_iv (O_CREAT)
		811	const_iv (O_TRUNC)
		812	const_iv (O_EXCL)
		813	const_iv (O_APPEND)
		814
		815	const_iv (O_ASYNC)
		816	const_iv (O_DIRECT)
		817	const_iv (O_NOATIME)
		818
		819	const_iv (O_CLOEXEC)
		820	const_iv (O_NOCTTY)
		821	const_iv (O_NOFOLLOW)
		822	const_iv (O_NONBLOCK)
		823	const_iv (O_EXEC)
		824	const_iv (O_SEARCH)
		825	const_iv (O_DIRECTORY)
		826	const_iv (O_DSYNC)
		827	const_iv (O_RSYNC)
		828	const_iv (O_SYNC)
		829	const_iv (O_TTY_INIT)
		830
		831	const_iv (S_IFIFO)
		832	const_iv (S_IFCHR)
		833	const_iv (S_IFBLK)
		834	const_iv (S_IFLNK)
		835	const_iv (S_IFREG)
		836	const_iv (S_IFDIR)
		837	const_iv (S_IFWHT)
		838	const_iv (S_IFSOCK)
		839	const_iv (S_IFMT)
		840
		841	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		842	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		843	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		844	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		845	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		846	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		847
		848	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		849	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		850	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		851	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		852	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		853
		854	const_iv (ST_RDONLY)
		855	const_iv (ST_NOSUID)
		856	const_iv (ST_NODEV)
		857	const_iv (ST_NOEXEC)
		858	const_iv (ST_SYNCHRONOUS)
		859	const_iv (ST_MANDLOCK)
		860	const_iv (ST_WRITE)
		861	const_iv (ST_APPEND)
		862	const_iv (ST_IMMUTABLE)
		863	const_iv (ST_NOATIME)
		864	const_iv (ST_NODIRATIME)
		865	const_iv (ST_RELATIME)
		866
		867	const_iv (PROT_NONE)
		868	const_iv (PROT_EXEC)
		869	const_iv (PROT_READ)
		870	const_iv (PROT_WRITE)
		871
		872	/*const_iv (MAP_FIXED)*/
		873	const_iv (MAP_PRIVATE)
		874	const_iv (MAP_SHARED)
		875	const_iv (MAP_ANONYMOUS)
		876
		877	/* linuxish */
		878	const_iv (MAP_HUGETLB)
		879	const_iv (MAP_LOCKED)
		880	const_iv (MAP_NORESERVE)
		881	const_iv (MAP_POPULATE)
		882	const_iv (MAP_NONBLOCK)
		883
		884	const_eio (MCL_FUTURE)
		885	const_eio (MCL_CURRENT)
		886
		887	const_eio (MS_ASYNC)
		888	const_eio (MS_INVALIDATE)
		889	const_eio (MS_SYNC)
		890
		891	const_eio (MT_MODIFY)
		892
		893	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		894	const_eio (SYNC_FILE_RANGE_WRITE)
		895	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		896
		897	const_eio (FALLOC_FL_KEEP_SIZE)
		898
		899	const_eio (READDIR_DENTS)
		900	const_eio (READDIR_DIRS_FIRST)
		901	const_eio (READDIR_STAT_ORDER)
		902	const_eio (READDIR_FOUND_UNKNOWN)
		903
		904	const_eio (DT_UNKNOWN)
		905	const_eio (DT_FIFO)
		906	const_eio (DT_CHR)
		907	const_eio (DT_DIR)
		908	const_eio (DT_BLK)
		909	const_eio (DT_REG)
		910	const_eio (DT_LNK)
		911	const_eio (DT_SOCK)
		912	const_eio (DT_WHT)
		913	};
		914
474	stash = gv_stashpv ("IO::AIO", 1);	915	aio_stash = gv_stashpv ("IO::AIO" , 1);
		916	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		917	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
475		918
476	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	919	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
477	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	920	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
478	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
479	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
480	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
481	#ifndef _WIN32
482	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
483	#endif
484		921
		922	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		923
485	create_respipe ();	924	create_respipe ();
486		925
487	if (eio_init (want_poll, done_poll) < 0)	926	if (eio_init (want_poll, done_poll) < 0)
488	croak ("IO::AIO: unable to initialise eio library");	927	croak ("IO::AIO: unable to initialise eio library");
489		928
490	/* atfork child called in fifo order, so before eio's handler */	929	/* atfork child called in fifo order, so before eio's handler */
491	X_THREAD_ATFORK (0, 0, atfork_child);	930	X_THREAD_ATFORK (0, 0, atfork_child);
492	}	931	}
493		932
494	void	933	void
495	max_poll_reqs (int nreqs)	934	max_poll_reqs (unsigned int nreqs)
496	PROTOTYPE: $	935	PROTOTYPE: $
497	CODE:	936	CODE:
498	eio_set_max_poll_reqs (nreqs);	937	eio_set_max_poll_reqs (nreqs);
499		938
500	void	939	void
…		…
502	PROTOTYPE: $	941	PROTOTYPE: $
503	CODE:	942	CODE:
504	eio_set_max_poll_time (nseconds);	943	eio_set_max_poll_time (nseconds);
505		944
506	void	945	void
507	min_parallel (int nthreads)	946	min_parallel (unsigned int nthreads)
508	PROTOTYPE: $	947	PROTOTYPE: $
509	CODE:	948	CODE:
510	eio_set_min_parallel (nthreads);	949	eio_set_min_parallel (nthreads);
511		950
512	void	951	void
513	max_parallel (int nthreads)	952	max_parallel (unsigned int nthreads)
514	PROTOTYPE: $	953	PROTOTYPE: $
515	CODE:	954	CODE:
516	eio_set_max_parallel (nthreads);	955	eio_set_max_parallel (nthreads);
517		956
518	void	957	void
519	max_idle (int nthreads)	958	max_idle (unsigned int nthreads)
520	PROTOTYPE: $	959	PROTOTYPE: $
521	CODE:	960	CODE:
522	eio_set_max_idle (nthreads);	961	eio_set_max_idle (nthreads);
523		962
524	void	963	void
		964	idle_timeout (unsigned int seconds)
		965	PROTOTYPE: $
		966	CODE:
		967	eio_set_idle_timeout (seconds);
		968
		969	void
525	max_outstanding (int maxreqs)	970	max_outstanding (unsigned int maxreqs)
526	PROTOTYPE: $	971	PROTOTYPE: $
527	CODE:	972	CODE:
528	max_outstanding = maxreqs;	973	max_outstanding = maxreqs;
529		974
530	void	975	void
531	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	976	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
532	PROTOTYPE: $$$;$
533	PPCODE:	977	PPCODE:
534	{	978	{
535	dREQ;	979	dREQ;
536		980
537	req->type = EIO_OPEN;	981	req->type = EIO_OPEN;
…		…
543	REQ_SEND;	987	REQ_SEND;
544	}	988	}
545		989
546	void	990	void
547	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	991	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
548	PROTOTYPE: $;$
549	ALIAS:	992	ALIAS:
550	aio_fsync = EIO_FSYNC	993	aio_fsync = EIO_FSYNC
551	aio_fdatasync = EIO_FDATASYNC	994	aio_fdatasync = EIO_FDATASYNC
552	PPCODE:	995	PPCODE:
553	{	996	{
		997	int fd = s_fileno_croak (fh, 0);
554	dREQ;	998	dREQ;
555		999
556	req->type = ix;	1000	req->type = ix;
557	req->sv1 = newSVsv (fh);	1001	req->sv1 = newSVsv (fh);
558	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1002	req->int1 = fd;
559		1003
560	REQ_SEND (req);	1004	REQ_SEND (req);
561	}	1005	}
562		1006
563	void	1007	void
		1008	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1009	PPCODE:
		1010	{
		1011	int fd = s_fileno_croak (fh, 0);
		1012	dREQ;
		1013
		1014	req->type = EIO_SYNC_FILE_RANGE;
		1015	req->sv1 = newSVsv (fh);
		1016	req->int1 = fd;
		1017	req->offs = offset;
		1018	req->size = nbytes;
		1019	req->int2 = flags;
		1020
		1021	REQ_SEND (req);
		1022	}
		1023
		1024	void
		1025	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1026	PPCODE:
		1027	{
		1028	int fd = s_fileno_croak (fh, 0);
		1029	dREQ;
		1030
		1031	req->type = EIO_FALLOCATE;
		1032	req->sv1 = newSVsv (fh);
		1033	req->int1 = fd;
		1034	req->int2 = mode;
		1035	req->offs = offset;
		1036	req->size = len;
		1037
		1038	REQ_SEND (req);
		1039	}
		1040
		1041	void
564	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1042	aio_close (SV *fh, SV *callback=&PL_sv_undef)
565	PROTOTYPE: $;$
566	PPCODE:	1043	PPCODE:
567	{	1044	{
568	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1045	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1046	int fd = s_fileno_croak (fh, 0);
569	dREQ;	1047	dREQ;
570		1048
571	if (close_pipe < 0)	1049	if (expect_false (close_fd < 0))
572	{	1050	{
		1051	#ifdef _WIN32
		1052	close_fd = _open_osfhandle (socket (AF_INET, SOCK_STREAM, 0), 0);
		1053	#else
573	int pipefd [2];	1054	int pipefd [2];
574		1055
575	if (pipe (pipefd) < 0	1056	if (pipe (pipefd) < 0
576	|| close (pipefd [1]) < 0	1057	|| close (pipefd [1]) < 0
577	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1058	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
578	abort (); /*D*/	1059	abort (); /*D*/
579		1060
580	close_pipe = pipefd [0];	1061	close_fd = pipefd [0];
		1062	#endif
581	}	1063	}
582		1064
583	req->type = EIO_DUP2;	1065	req->type = EIO_DUP2;
584	req->int1 = close_pipe;	1066	req->int1 = close_fd;
585	req->sv2 = newSVsv (fh);	1067	req->sv2 = newSVsv (fh);
586	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1068	req->int2 = fd;
587		1069
588	REQ_SEND (req);	1070	REQ_SEND (req);
589	}	1071	}
590		1072
591	void	1073	void
592	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1074	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
593	ALIAS:	1075	ALIAS:
594	aio_read = EIO_READ	1076	aio_read = EIO_READ
595	aio_write = EIO_WRITE	1077	aio_write = EIO_WRITE
596	PROTOTYPE: $$$$$;$
597	PPCODE:	1078	PPCODE:
598	{	1079	{
599	STRLEN svlen;	1080	STRLEN svlen;
		1081	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600	char *svptr = SvPVbyte (data, svlen);	1082	char *svptr = SvPVbyte (data, svlen);
601	UV len = SvUV (length);	1083	UV len = SvUV (length);
602
603	SvUPGRADE (data, SVt_PV);
604	SvPOK_on (data);
605		1084
606	if (dataoffset < 0)	1085	if (dataoffset < 0)
607	dataoffset += svlen;	1086	dataoffset += svlen;
608		1087
609	if (dataoffset < 0 || dataoffset > svlen)	1088	if (dataoffset < 0 || dataoffset > svlen)
…		…
615	if (!SvOK (length) || len + dataoffset > svlen)	1094	if (!SvOK (length) || len + dataoffset > svlen)
616	len = svlen - dataoffset;	1095	len = svlen - dataoffset;
617	}	1096	}
618	else	1097	else
619	{	1098	{
620	/* read: grow scalar as necessary */	1099	/* read: check type and grow scalar as necessary */
		1100	SvUPGRADE (data, SVt_PV);
621	svptr = SvGROW (data, len + dataoffset + 1);	1101	svptr = SvGROW (data, len + dataoffset + 1);
622	}	1102	}
623		1103
624	if (len < 0)
625	croak ("length must not be negative");
626
627	{	1104	{
628	dREQ;	1105	dREQ;
629		1106
630	req->type = ix;	1107	req->type = ix;
631	req->sv1 = newSVsv (fh);	1108	req->sv1 = newSVsv (fh);
632	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1109	req->int1 = fd;
633	: IoOFP (sv_2io (fh)));
634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1110	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635	req->size = len;	1111	req->size = len;
636	req->sv2 = SvREFCNT_inc (data);	1112	req->sv2 = SvREFCNT_inc (data);
637	req->ptr2 = (char *)svptr + dataoffset;	1113	req->ptr2 = (char *)svptr + dataoffset;
638	req->stroffset = dataoffset;	1114	req->stroffset = dataoffset;
…		…
647	}	1123	}
648	}	1124	}
649		1125
650	void	1126	void
651	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1127	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
652	PROTOTYPE: $$;$	1128	ALIAS:
		1129	aio_readlink = EIO_READLINK
		1130	aio_realpath = EIO_REALPATH
653	PPCODE:	1131	PPCODE:
654	{	1132	{
655	SV *data;	1133	SV *data;
656	dREQ;	1134	dREQ;
657		1135
658	req->type = EIO_READLINK;	1136	req->type = ix;
659	req->sv1 = newSVsv (path);	1137	req->sv1 = newSVsv (path);
660	req->ptr1 = SvPVbyte_nolen (req->sv1);	1138	req->ptr1 = SvPVbyte_nolen (req->sv1);
661		1139
662	REQ_SEND;	1140	REQ_SEND;
663	}	1141	}
664		1142
665	void	1143	void
666	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1144	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
667	PROTOTYPE: $$$$;$
668	PPCODE:	1145	PPCODE:
669	{	1146	{
		1147	int ifd = s_fileno_croak (in_fh , 0);
		1148	int ofd = s_fileno_croak (out_fh, 1);
670	dREQ;	1149	dREQ;
671		1150
672	req->type = EIO_SENDFILE;	1151	req->type = EIO_SENDFILE;
673	req->sv1 = newSVsv (out_fh);	1152	req->sv1 = newSVsv (out_fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1153	req->int1 = ofd;
675	req->sv2 = newSVsv (in_fh);	1154	req->sv2 = newSVsv (in_fh);
676	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1155	req->int2 = ifd;
677	req->offs = SvVAL64 (in_offset);	1156	req->offs = in_offset;
678	req->size = length;	1157	req->size = length;
679		1158
680	REQ_SEND;	1159	REQ_SEND;
681	}	1160	}
682		1161
683	void	1162	void
684	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1163	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	1164	PPCODE:
687	{	1165	{
		1166	int fd = s_fileno_croak (fh, 0);
688	dREQ;	1167	dREQ;
689		1168
690	req->type = EIO_READAHEAD;	1169	req->type = EIO_READAHEAD;
691	req->sv1 = newSVsv (fh);	1170	req->sv1 = newSVsv (fh);
692	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1171	req->int1 = fd;
693	req->offs = SvVAL64 (offset);	1172	req->offs = offset;
694	req->size = length;	1173	req->size = length;
695		1174
696	REQ_SEND;	1175	REQ_SEND;
697	}	1176	}
698		1177
699	void	1178	void
700	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1179	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
701	ALIAS:	1180	ALIAS:
702	aio_stat = EIO_STAT	1181	aio_stat = EIO_STAT
703	aio_lstat = EIO_LSTAT	1182	aio_lstat = EIO_LSTAT
		1183	aio_statvfs = EIO_STATVFS
704	PPCODE:	1184	PPCODE:
705	{	1185	{
706	dREQ;	1186	dREQ;
707		1187
708	req->sv1 = newSVsv (fh_or_path);	1188	req->sv1 = newSVsv (fh_or_path);
…		…
712	req->type = ix;	1192	req->type = ix;
713	req->ptr1 = SvPVbyte_nolen (req->sv1);	1193	req->ptr1 = SvPVbyte_nolen (req->sv1);
714	}	1194	}
715	else	1195	else
716	{	1196	{
717	req->type = EIO_FSTAT;	1197	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
718	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1198	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719	}	1199	}
720		1200
721	REQ_SEND;	1201	REQ_SEND;
722	}	1202	}
		1203
		1204	UV
		1205	major (UV dev)
		1206	ALIAS:
		1207	minor = 1
		1208	CODE:
		1209	RETVAL = ix ? major (dev) : minor (dev);
		1210	OUTPUT:
		1211	RETVAL
		1212
		1213	UV
		1214	makedev (UV maj, UV min)
		1215	CODE:
		1216	RETVAL = makedev (maj, min);
		1217	OUTPUT:
		1218	RETVAL
723		1219
724	void	1220	void
725	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1221	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
726	PPCODE:	1222	PPCODE:
727	{	1223	{
…		…
817		1313
818	REQ_SEND;	1314	REQ_SEND;
819	}	1315	}
820		1316
821	void	1317	void
		1318	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1319	PPCODE:
		1320	{
		1321	dREQ;
		1322
		1323	req->type = EIO_READDIR;
		1324	req->sv1 = newSVsv (pathname);
		1325	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1326	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1327
		1328	if (flags & EIO_READDIR_DENTS)
		1329	req->int1 |= EIO_READDIR_CUSTOM2;
		1330
		1331	REQ_SEND;
		1332	}
		1333
		1334	void
822	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1335	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
823	ALIAS:	1336	ALIAS:
824	aio_unlink = EIO_UNLINK	1337	aio_unlink = EIO_UNLINK
825	aio_rmdir = EIO_RMDIR	1338	aio_rmdir = EIO_RMDIR
826	aio_readdir = EIO_READDIR	1339	aio_readdir = EIO_READDIR
…		…
868		1381
869	REQ_SEND;	1382	REQ_SEND;
870	}	1383	}
871		1384
872	void	1385	void
		1386	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1387	ALIAS:
		1388	aio_mtouch = EIO_MTOUCH
		1389	aio_msync = EIO_MSYNC
		1390	PPCODE:
		1391	{
		1392	STRLEN svlen;
		1393	char *svptr = SvPVbyte (data, svlen);
		1394	UV len = SvUV (length);
		1395
		1396	if (offset < 0)
		1397	offset += svlen;
		1398
		1399	if (offset < 0 || offset > svlen)
		1400	croak ("offset outside of scalar");
		1401
		1402	if (!SvOK (length) || len + offset > svlen)
		1403	len = svlen - offset;
		1404
		1405	{
		1406	dREQ;
		1407
		1408	req->type = ix;
		1409	req->sv2 = SvREFCNT_inc (data);
		1410	req->ptr2 = (char *)svptr + offset;
		1411	req->size = len;
		1412	req->int1 = flags;
		1413
		1414	REQ_SEND;
		1415	}
		1416	}
		1417
		1418	void
		1419	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1420	PPCODE:
		1421	{
		1422	STRLEN svlen;
		1423	char *svptr = SvPVbyte (data, svlen);
		1424	UV len = SvUV (length);
		1425
		1426	if (offset < 0)
		1427	offset += svlen;
		1428
		1429	if (offset < 0 || offset > svlen)
		1430	croak ("offset outside of scalar");
		1431
		1432	if (!SvOK (length) || len + offset > svlen)
		1433	len = svlen - offset;
		1434
		1435	{
		1436	dREQ;
		1437
		1438	req->type = EIO_MLOCK;
		1439	req->sv2 = SvREFCNT_inc (data);
		1440	req->ptr2 = (char *)svptr + offset;
		1441	req->size = len;
		1442
		1443	REQ_SEND;
		1444	}
		1445	}
		1446
		1447	void
		1448	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1449	PPCODE:
		1450	{
		1451	dREQ;
		1452
		1453	req->type = EIO_MLOCKALL;
		1454	req->int1 = flags;
		1455
		1456	REQ_SEND;
		1457	}
		1458
		1459	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1460	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1461	PPCODE:
875	{	1462	{
876	dREQ;	1463	dREQ;
877		1464
…		…
881	REQ_SEND;	1468	REQ_SEND;
882	}	1469	}
883		1470
884	void	1471	void
885	aio_group (SV *callback=&PL_sv_undef)	1472	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1473	PPCODE:
888	{	1474	{
889	dREQ;	1475	dREQ;
890		1476
891	req->type = EIO_GROUP;	1477	req->type = EIO_GROUP;
892		1478
893	eio_submit (req);	1479	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1480	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1481	}
896		1482
897	void	1483	void
898	aio_nop (SV *callback=&PL_sv_undef)	1484	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1485	ALIAS:
…		…
908	REQ_SEND;	1494	REQ_SEND;
909	}	1495	}
910		1496
911	int	1497	int
912	aioreq_pri (int pri = 0)	1498	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1499	CODE:
915	RETVAL = next_pri;	1500	RETVAL = next_pri;
916	if (items > 0)	1501	if (items > 0)
917	{	1502	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1503	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1515	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice;	1516	next_pri = nice;
932		1517
933	void	1518	void
934	flush ()	1519	flush ()
935	PROTOTYPE:
936	CODE:	1520	CODE:
937	while (eio_nreqs ())	1521	while (eio_nreqs ())
938	{	1522	{
939	poll_wait ();	1523	poll_wait ();
940	poll_cb ();	1524	poll_cb ();
941	}	1525	}
942		1526
943	int	1527	int
944	poll()	1528	poll ()
945	PROTOTYPE:
946	CODE:	1529	CODE:
947	poll_wait ();	1530	poll_wait ();
948	RETVAL = poll_cb ();	1531	RETVAL = poll_cb ();
949	OUTPUT:	1532	OUTPUT:
950	RETVAL	1533	RETVAL
951		1534
952	int	1535	int
953	poll_fileno()	1536	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1537	CODE:
956	RETVAL = respipe [0];	1538	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1539	OUTPUT:
958	RETVAL	1540	RETVAL
959		1541
960	int	1542	int
961	poll_cb(...)	1543	poll_cb (...)
962	PROTOTYPE:	1544	PROTOTYPE:
963	CODE:	1545	CODE:
964	RETVAL = poll_cb ();	1546	RETVAL = poll_cb ();
965	OUTPUT:	1547	OUTPUT:
966	RETVAL	1548	RETVAL
967		1549
968	void	1550	void
969	poll_wait()	1551	poll_wait ()
970	PROTOTYPE:
971	CODE:	1552	CODE:
972	poll_wait ();	1553	poll_wait ();
973		1554
974	int	1555	int
975	nreqs()	1556	nreqs ()
976	PROTOTYPE:
977	CODE:	1557	CODE:
978	RETVAL = eio_nreqs ();	1558	RETVAL = eio_nreqs ();
979	OUTPUT:	1559	OUTPUT:
980	RETVAL	1560	RETVAL
981		1561
982	int	1562	int
983	nready()	1563	nready ()
984	PROTOTYPE:
985	CODE:	1564	CODE:
986	RETVAL = eio_nready ();	1565	RETVAL = eio_nready ();
987	OUTPUT:	1566	OUTPUT:
988	RETVAL	1567	RETVAL
989		1568
990	int	1569	int
991	npending()	1570	npending ()
992	PROTOTYPE:
993	CODE:	1571	CODE:
994	RETVAL = eio_npending ();	1572	RETVAL = eio_npending ();
995	OUTPUT:	1573	OUTPUT:
996	RETVAL	1574	RETVAL
997		1575
998	int	1576	int
999	nthreads()	1577	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1578	CODE:
1002	RETVAL = eio_nthreads ();	1579	RETVAL = eio_nthreads ();
1003	OUTPUT:	1580	OUTPUT:
1004	RETVAL	1581	RETVAL
1005		1582
		1583	int
		1584	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1585	CODE:
		1586	RETVAL = posix_fadvise (fh, offset, length, advice);
		1587	OUTPUT:
		1588	RETVAL
		1589
		1590	ssize_t
		1591	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1592	CODE:
		1593	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1594	OUTPUT:
		1595	RETVAL
		1596
		1597	void
		1598	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1599	PPCODE:
		1600	sv_unmagic (scalar, MMAP_MAGIC);
		1601	{
		1602	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1603	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1604	if (addr == (void *)-1)
		1605	XSRETURN_NO;
		1606
		1607	sv_force_normal (scalar);
		1608
		1609	/* we store the length in mg_obj, as namlen is I32 :/ */
		1610	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1611	->mg_obj = (SV *)length;
		1612
		1613	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1614
		1615	if (!(prot & PROT_WRITE))
		1616	SvREADONLY_on (scalar);
		1617
		1618	if (SvLEN (scalar))
		1619	Safefree (SvPVX (scalar));
		1620
		1621	SvPVX (scalar) = (char *)addr;
		1622	SvCUR_set (scalar, length);
		1623	SvLEN_set (scalar, 0);
		1624	SvPOK_only (scalar);
		1625
		1626	XSRETURN_YES;
		1627	}
		1628
		1629	void
		1630	munmap (SV *scalar)
		1631	CODE:
		1632	sv_unmagic (scalar, MMAP_MAGIC);
		1633
		1634	int
		1635	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1636	ALIAS:
		1637	mprotect = 1
		1638	CODE:
		1639	{
		1640	STRLEN svlen;
		1641	void *addr = SvPVbyte (scalar, svlen);
		1642	size_t len = SvUV (length);
		1643
		1644	if (offset < 0)
		1645	offset += svlen;
		1646
		1647	if (offset < 0 || offset > svlen)
		1648	croak ("offset outside of scalar");
		1649
		1650	if (!SvOK (length) || len + offset > svlen)
		1651	len = svlen - offset;
		1652
		1653	addr = (void *)(((intptr_t)addr) + offset);
		1654	eio_page_align (&addr, &len);
		1655
		1656	switch (ix)
		1657	{
		1658	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1659	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1660	}
		1661	}
		1662	OUTPUT:
		1663	RETVAL
		1664
		1665	int
		1666	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1667	CODE:
		1668	{
		1669	STRLEN svlen;
		1670	void *addr = SvPVbyte (scalar, svlen);
		1671	size_t len = SvUV (length);
		1672
		1673	if (offset < 0)
		1674	offset += svlen;
		1675
		1676	if (offset < 0 || offset > svlen)
		1677	croak ("offset outside of scalar");
		1678
		1679	if (!SvOK (length) || len + offset > svlen)
		1680	len = svlen - offset;
		1681
		1682	addr = (void *)(((intptr_t)addr) + offset);
		1683	eio_page_align (&addr, &len);
		1684	#if _POSIX_MEMLOCK_RANGE
		1685	RETVAL = munlock (addr, len);
		1686	#else
		1687	RETVAL = ((errno = ENOSYS), -1);
		1688	#endif
		1689	}
		1690	OUTPUT:
		1691	RETVAL
		1692
		1693	int
		1694	munlockall ()
		1695	CODE:
		1696	#if _POSIX_MEMLOCK
		1697	munlockall ();
		1698	#else
		1699	RETVAL = -1;
		1700	errno = ENOSYS;
		1701	#endif
		1702	OUTPUT:
		1703	RETVAL
		1704
1006	void _on_next_submit (SV *cb)	1705	void _on_next_submit (SV *cb)
1007	CODE:	1706	CODE:
1008	SvREFCNT_dec (on_next_submit);	1707	SvREFCNT_dec (on_next_submit);
1009	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1708	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010		1709
…		…
1017	CODE:	1716	CODE:
1018	eio_cancel (req);	1717	eio_cancel (req);
1019		1718
1020	void	1719	void
1021	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1720	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1022	CODE:	1721	PPCODE:
		1722	{
		1723	if (GIMME_V != G_VOID)
		1724	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1725
		1726	if (items > 1)
		1727	{
		1728	SV *cb_cv =get_cb (callback);
		1729
1023	SvREFCNT_dec (req->callback);	1730	SvREFCNT_dec (req->callback);
1024	req->callback = newSVsv (callback);	1731	req->callback = SvREFCNT_inc (cb_cv);
		1732	}
		1733	}
1025		1734
1026	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1735	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027		1736
1028	void	1737	void
1029	add (aio_req grp, ...)	1738	add (aio_req grp, ...)
…		…
1061	AV *av;	1770	AV *av;
1062		1771
1063	grp->errorno = errno;	1772	grp->errorno = errno;
1064		1773
1065	av = newAV ();	1774	av = newAV ();
		1775	av_extend (av, items - 1);
1066		1776
1067	for (i = 1; i < items; ++i )	1777	for (i = 1; i < items; ++i )
1068	av_push (av, newSVsv (ST (i)));	1778	av_push (av, newSVsv (ST (i)));
1069		1779
1070	SvREFCNT_dec (grp->sv1);	1780	SvREFCNT_dec (grp->sv1);
…		…
1084	void	1794	void
1085	feed (aio_req grp, SV *callback=&PL_sv_undef)	1795	feed (aio_req grp, SV *callback=&PL_sv_undef)
1086	CODE:	1796	CODE:
1087	{	1797	{
1088	SvREFCNT_dec (grp->sv2);	1798	SvREFCNT_dec (grp->sv2);
1089	grp->sv2 = newSVsv (callback);	1799	grp->sv2 = newSVsv (callback);
		1800	grp->feed = aio_grp_feed;
1090		1801
1091	if (grp->int2 <= 0)	1802	if (grp->int2 <= 0)
1092	grp->int2 = 2;	1803	grp->int2 = 2;
1093		1804
1094	eio_grp_limit (grp, grp->int2);	1805	eio_grp_limit (grp, grp->int2);

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