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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.128 by root, Tue Sep 30 14:07:59 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
70	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir
73	#undef opendir
74	#undef closedir
75		75
76	#define EIO_STRUCT_STAT Stat_t	76	#define EIO_STRUCT_STAT Stat_t
77		77
78	/* use NV for 32 bit perls as it allows larger offsets */	78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8	79	#if IVSIZE >= 8
		80	# define VAL64 IV
80	# define SvVAL64 SvIV	81	# define SvVAL64 SvIV
		82	# define newSVval64 newSViv
81	#else	83	#else
		84	# define VAL64 NV
82	# define SvVAL64 SvNV	85	# define SvVAL64 SvNV
		86	# define newSVval64 newSVnv
83	#endif	87	#endif
84		88
85	/*****************************************************************************/	89	/*****************************************************************************/
86		90
87	#if __GNUC__ >= 3	91	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	97	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	98	#define expect_true(expr) expect ((expr) != 0, 1)
95		99
96	/*****************************************************************************/	100	/*****************************************************************************/
97		101
98	static HV *stash;
99	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 */
100		105
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	106	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		107
104	#define EIO_REQ_MEMBERS \	108	#define EIO_REQ_MEMBERS \
105	SV *callback; \	109	SV *callback; \
106	SV *sv1, *sv2; \	110	SV *sv1, *sv2; \
107	STRLEN stroffset; \	111	STRLEN stroffset; \
108	SV *self;	112	SV *self;
109		113
110	#define EIO_NO_WRAPPERS 1	114	#define EIO_NO_WRAPPERS 1
111		115
		116	#include "libeio/config.h"
112	#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
113		319
114	static int req_invoke (eio_req *req);	320	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	321	#define EIO_FINISH(req) req_invoke (req)
116	static void aio_grp_feed (eio_req *grp);
117	#define EIO_FEED(req) aio_grp_feed (req)
118	static void req_destroy (eio_req *grp);	322	static void req_destroy (eio_req *grp);
119	#define EIO_DESTROY(req) req_destroy (req)	323	#define EIO_DESTROY(req) req_destroy (req)
120		324
121	enum {	325	enum {
122	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	326	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
129		333
130	static SV *on_next_submit;	334	static SV *on_next_submit;
131	static int next_pri = EIO_PRI_DEFAULT;	335	static int next_pri = EIO_PRI_DEFAULT;
132	static int max_outstanding;	336	static int max_outstanding;
133		337
134	static int respipe_osf [2], respipe [2] = { -1, -1 };	338	static s_epipe respipe;
135		339
136	static void req_destroy (aio_req req);	340	static void req_destroy (aio_req req);
137	static void req_cancel (aio_req req);	341	static void req_cancel (aio_req req);
138		342
139	static void want_poll (void)	343	static void want_poll (void)
140	{	344	{
141	/* write a dummy byte to the pipe so fh becomes ready */	345	/* write a dummy byte to the pipe so fh becomes ready */
142	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	346	s_epipe_signal (&respipe);
143	}	347	}
144		348
145	static void done_poll (void)	349	static void done_poll (void)
146	{	350	{
147	/* read any signals sent by the worker threads */	351	/* read any signals sent by the worker threads */
148	char buf [4];	352	s_epipe_drain (&respipe);
149	while (respipe_read (respipe [0], buf, 4) == 4)
150	;
151	}	353	}
152		354
153	/* must be called at most once */	355	/* must be called at most once */
154	static SV *req_sv (aio_req req, const char *klass)	356	static SV *req_sv (aio_req req, HV *stash)
155	{	357	{
156	if (!req->self)	358	if (!req->self)
157	{	359	{
158	req->self = (SV *)newHV ();	360	req->self = (SV *)newHV ();
159	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	361	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
160	}	362	}
161		363
162	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	364	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
163	}	365	}
164		366
165	static aio_req SvAIO_REQ (SV *sv)	367	static aio_req SvAIO_REQ (SV *sv)
166	{	368	{
167	MAGIC *mg;	369	MAGIC *mg;
168		370
169	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")))
170	croak ("object of class " AIO_REQ_KLASS " expected");	375	croak ("object of class IO::AIO::REQ expected");
171		376
172	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	377	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
173		378
174	return mg ? (aio_req)mg->mg_ptr : 0;	379	return mg ? (aio_req)mg->mg_ptr : 0;
175	}	380	}
…		…
181	dSP;	386	dSP;
182		387
183	ENTER;	388	ENTER;
184	SAVETMPS;	389	SAVETMPS;
185	PUSHMARK (SP);	390	PUSHMARK (SP);
186	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	391	XPUSHs (req_sv (grp, aio_grp_stash));
187	PUTBACK;	392	PUTBACK;
188	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	393	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
189	SPAGAIN;	394	SPAGAIN;
190	FREETMPS;	395	FREETMPS;
191	LEAVE;	396	LEAVE;
…		…
209	}	414	}
210	}	415	}
211		416
212	static int req_invoke (eio_req *req)	417	static int req_invoke (eio_req *req)
213	{	418	{
214	dSP;
215
216	if (req->flags & FLAG_SV2_RO_OFF)	419	if (req->flags & FLAG_SV2_RO_OFF)
217	SvREADONLY_off (req->sv2);	420	SvREADONLY_off (req->sv2);
218		421
219	if (!EIO_CANCELLED (req) && req->callback)	422	if (!EIO_CANCELLED (req) && req->callback)
220	{	423	{
		424	dSP;
		425	static SV *sv_result_cache; /* caches the result integer SV */
		426	SV *sv_result;
		427
221	ENTER;	428	ENTER;
222	SAVETMPS;	429	SAVETMPS;
223	PUSHMARK (SP);	430	PUSHMARK (SP);
224	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	}
225		445
226	switch (req->type)	446	switch (req->type)
227	{	447	{
228	case EIO_READDIR:	448	case EIO_READDIR:
229	{	449	{
230	SV *rv = &PL_sv_undef;	450	SV *rv = &PL_sv_undef;
231		451
232	if (req->result >= 0)	452	if (req->result >= 0)
233	{	453	{
234	int i;	454	int i;
235	char *buf = req->ptr2;	455	char *names = (char *)req->ptr2;
		456	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
236	AV *av = newAV ();	457	AV *av = newAV ();
237		458
238	av_extend (av, req->result - 1);	459	av_extend (av, req->result - 1);
239		460
240	for (i = 0; i < req->result; ++i)	461	for (i = 0; i < req->result; ++i)
241	{	462	{
242	SV *sv = newSVpv (buf, 0);	463	if (req->int1 & EIO_READDIR_DENTS)
		464	{
		465	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
243		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
244	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);
245	buf += SvCUR (sv) + 1;	495	names += SvCUR (name) + 1;
		496	}
246	}	497	}
247		498
248	rv = sv_2mortal (newRV_noinc ((SV *)av));	499	rv = sv_2mortal (newRV_noinc ((SV *)av));
249	}	500	}
250		501
251	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))));
252	}	506	}
253	break;	507	break;
254		508
255	case EIO_OPEN:	509	case EIO_OPEN:
256	{	510	{
…		…
262	GV *gv = (GV *)sv_newmortal ();	516	GV *gv = (GV *)sv_newmortal ();
263	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	517	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
264	char sym [64];	518	char sym [64];
265	int symlen;	519	int symlen;
266		520
267	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	521	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
268	gv_init (gv, stash, sym, symlen, 0);	522	gv_init (gv, aio_stash, sym, symlen, 0);
269		523
270	symlen = snprintf (	524	symlen = snprintf (
271	sym,	525	sym,
272	sizeof (sym),	526	sizeof (sym),
273	"%s&=%d",	527	"%s&=%d",
274	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	528	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
275	req->result	529	(int)req->result
276	);	530	);
277		531
278	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	532	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
279	fh = (SV *)gv;	533	fh = (SV *)gv;
280	}	534	}
281		535
282	PUSHs (fh);	536	PUSHs (fh);
283	}	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
284	break;	570	break;
285		571
286	case EIO_GROUP:	572	case EIO_GROUP:
287	req->int1 = 2; /* mark group as finished */	573	req->int1 = 2; /* mark group as finished */
288		574
…		…
300	case EIO_NOP:	586	case EIO_NOP:
301	case EIO_BUSY:	587	case EIO_BUSY:
302	break;	588	break;
303		589
304	case EIO_READLINK:	590	case EIO_READLINK:
		591	case EIO_REALPATH:
305	if (req->result > 0)	592	if (req->result > 0)
306	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	593	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
307	break;	594	break;
308		595
309	case EIO_STAT:	596	case EIO_STAT:
310	case EIO_LSTAT:	597	case EIO_LSTAT:
311	case EIO_FSTAT:	598	case EIO_FSTAT:
312	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	599	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
313	PL_laststatval = req->result;	600	PL_laststatval = req->result;
314	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	601	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
315	PUSHs (sv_2mortal (newSViv (req->result)));	602	PUSHs (sv_result);
316	break;	603	break;
317		604
318	case EIO_READ:	605	case EIO_READ:
		606	{
319	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));
320	*SvEND (req->sv2) = 0;	608	*SvEND (req->sv2) = 0;
321	PUSHs (sv_2mortal (newSViv (req->result)));	609	SvPOK_only (req->sv2);
		610	SvSETMAGIC (req->sv2);
		611	PUSHs (sv_result);
		612	}
322	break;	613	break;
323		614
324	case EIO_DUP2:	615	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
325	if (req->result > 0)	616	if (req->result > 0)
326	req->result = 0;	617	SvIV_set (sv_result, 0);
327	/* FALLTHROUGH */	618	/* FALLTHROUGH */
328		619
329	default:	620	default:
330	PUSHs (sv_2mortal (newSViv (req->result)));	621	PUSHs (sv_result);
331	break;	622	break;
332	}	623	}
333		624
334	errno = req->errorno;	625	errno = req->errorno;
335		626
336	PUTBACK;	627	PUTBACK;
337	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	628	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
338	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;
339		635
340	FREETMPS;	636	FREETMPS;
341	LEAVE;	637	LEAVE;
342		638
343	PUTBACK;	639	PUTBACK;
…		…
372	grp->sv2 = 0;	668	grp->sv2 = 0;
373		669
374	eio_grp_cancel (grp);	670	eio_grp_cancel (grp);
375	}	671	}
376		672
377	#ifdef USE_SOCKETS_AS_HANDLES
378	# define TO_SOCKET(x) (win32_get_osfhandle (x))
379	#else
380	# define TO_SOCKET(x) (x)
381	#endif
382
383	static void
384	create_respipe (void)	673	static void create_respipe (void)
385	{	674	{
386	int old_readfd = respipe [0];
387
388	if (respipe [1] >= 0)
389	respipe_close (TO_SOCKET (respipe [1]));
390
391	#ifdef _WIN32
392	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
393	#else
394	if (pipe (respipe))	675	if (s_epipe_renew (&respipe))
395	#endif
396	croak ("unable to initialize result pipe");	676	croak ("IO::AIO: unable to initialize result pipe");
397
398	if (old_readfd >= 0)
399	{
400	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
401	croak ("unable to initialize result pipe(2)");
402
403	respipe_close (respipe [0]);
404	respipe [0] = old_readfd;
405	}
406
407	#ifdef _WIN32
408	int arg = 1;
409	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
410	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
411	#else
412	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
413	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
414	#endif
415	croak ("unable to initialize result pipe(3)");
416
417	respipe_osf [0] = TO_SOCKET (respipe [0]);
418	respipe_osf [1] = TO_SOCKET (respipe [1]);
419	}	677	}
420		678
421	static void poll_wait (void)	679	static void poll_wait (void)
422	{	680	{
423	fd_set rfd;
424
425	while (eio_nreqs ())	681	while (eio_nreqs ())
426	{	682	{
427	int size;	683	int size;
428		684
429	X_LOCK (reslock);	685	X_LOCK (reslock);
…		…
433	if (size)	689	if (size)
434	return;	690	return;
435		691
436	etp_maybe_start_thread ();	692	etp_maybe_start_thread ();
437		693
438	FD_ZERO (&rfd);	694	s_epipe_wait (&respipe);
439	FD_SET (respipe [0], &rfd);
440
441	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
442	}	695	}
443	}	696	}
444		697
445	static int poll_cb (void)	698	static int poll_cb (void)
446	{	699	{
…		…
461	static void atfork_child (void)	714	static void atfork_child (void)
462	{	715	{
463	create_respipe ();	716	create_respipe ();
464	}	717	}
465		718
466	static SV *	719	/*****************************************************************************/
467	get_cb (SV *cb_sv)
468	{
469	HV *st;
470	GV *gvp;
471	CV *cv;
472		720
473	if (!SvOK (cb_sv))	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
474	return 0;	754	return 0;
		755	}
475		756
476	cv = sv_2cv (cb_sv, &st, &gvp, 0);	757	static MGVTBL mmap_vtbl = {
		758	0, 0, 0, 0, mmap_free
		759	};
477		760
478	if (!cv)	761	/*****************************************************************************/
479	croak ("IO::AIO watcher callback must be undef or a CODE reference");
480		762
481	return (SV *)cv;	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;
482	}	767	}
483		768
484	#define dREQ \	769	#define dREQ \
485	SV *cb_cv; \	770	SV *cb_cv; \
486	aio_req req; \	771	aio_req req; \
…		…
500	PUTBACK; \	785	PUTBACK; \
501	req_submit (req); \	786	req_submit (req); \
502	SPAGAIN; \	787	SPAGAIN; \
503	\	788	\
504	if (GIMME_V != G_VOID) \	789	if (GIMME_V != G_VOID) \
505	XPUSHs (req_sv (req, AIO_REQ_KLASS));	790	XPUSHs (req_sv (req, aio_req_stash));
506		791
507	MODULE = IO::AIO PACKAGE = IO::AIO	792	MODULE = IO::AIO PACKAGE = IO::AIO
508		793
509	PROTOTYPES: ENABLE	794	PROTOTYPES: ENABLE
510		795
511	BOOT:	796	BOOT:
512	{	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
513	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);
514		918
515	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	919	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
516	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	920	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
517	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
518	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
519	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
520	#ifndef _WIN32
521	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
522	#endif
523		921
		922	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		923
524	create_respipe ();	924	create_respipe ();
525		925
526	if (eio_init (want_poll, done_poll) < 0)	926	if (eio_init (want_poll, done_poll) < 0)
527	croak ("IO::AIO: unable to initialise eio library");	927	croak ("IO::AIO: unable to initialise eio library");
528		928
529	/* atfork child called in fifo order, so before eio's handler */	929	/* atfork child called in fifo order, so before eio's handler */
530	X_THREAD_ATFORK (0, 0, atfork_child);	930	X_THREAD_ATFORK (0, 0, atfork_child);
531	}	931	}
532		932
533	void	933	void
534	max_poll_reqs (int nreqs)	934	max_poll_reqs (unsigned int nreqs)
535	PROTOTYPE: $	935	PROTOTYPE: $
536	CODE:	936	CODE:
537	eio_set_max_poll_reqs (nreqs);	937	eio_set_max_poll_reqs (nreqs);
538		938
539	void	939	void
…		…
541	PROTOTYPE: $	941	PROTOTYPE: $
542	CODE:	942	CODE:
543	eio_set_max_poll_time (nseconds);	943	eio_set_max_poll_time (nseconds);
544		944
545	void	945	void
546	min_parallel (int nthreads)	946	min_parallel (unsigned int nthreads)
547	PROTOTYPE: $	947	PROTOTYPE: $
548	CODE:	948	CODE:
549	eio_set_min_parallel (nthreads);	949	eio_set_min_parallel (nthreads);
550		950
551	void	951	void
552	max_parallel (int nthreads)	952	max_parallel (unsigned int nthreads)
553	PROTOTYPE: $	953	PROTOTYPE: $
554	CODE:	954	CODE:
555	eio_set_max_parallel (nthreads);	955	eio_set_max_parallel (nthreads);
556		956
557	void	957	void
558	max_idle (int nthreads)	958	max_idle (unsigned int nthreads)
559	PROTOTYPE: $	959	PROTOTYPE: $
560	CODE:	960	CODE:
561	eio_set_max_idle (nthreads);	961	eio_set_max_idle (nthreads);
562		962
563	void	963	void
		964	idle_timeout (unsigned int seconds)
		965	PROTOTYPE: $
		966	CODE:
		967	eio_set_idle_timeout (seconds);
		968
		969	void
564	max_outstanding (int maxreqs)	970	max_outstanding (unsigned int maxreqs)
565	PROTOTYPE: $	971	PROTOTYPE: $
566	CODE:	972	CODE:
567	max_outstanding = maxreqs;	973	max_outstanding = maxreqs;
568		974
569	void	975	void
570	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)
571	PROTOTYPE: $$$;$
572	PPCODE:	977	PPCODE:
573	{	978	{
574	dREQ;	979	dREQ;
575		980
576	req->type = EIO_OPEN;	981	req->type = EIO_OPEN;
…		…
582	REQ_SEND;	987	REQ_SEND;
583	}	988	}
584		989
585	void	990	void
586	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	991	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
587	PROTOTYPE: $;$
588	ALIAS:	992	ALIAS:
589	aio_fsync = EIO_FSYNC	993	aio_fsync = EIO_FSYNC
590	aio_fdatasync = EIO_FDATASYNC	994	aio_fdatasync = EIO_FDATASYNC
591	PPCODE:	995	PPCODE:
592	{	996	{
		997	int fd = s_fileno_croak (fh, 0);
593	dREQ;	998	dREQ;
594		999
595	req->type = ix;	1000	req->type = ix;
596	req->sv1 = newSVsv (fh);	1001	req->sv1 = newSVsv (fh);
597	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1002	req->int1 = fd;
598		1003
599	REQ_SEND (req);	1004	REQ_SEND (req);
600	}	1005	}
601		1006
602	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
603	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1042	aio_close (SV *fh, SV *callback=&PL_sv_undef)
604	PROTOTYPE: $;$
605	PPCODE:	1043	PPCODE:
606	{	1044	{
607	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);
608	dREQ;	1047	dREQ;
609		1048
610	if (close_pipe < 0)	1049	if (expect_false (close_fd < 0))
611	{	1050	{
		1051	#ifdef _WIN32
		1052	close_fd = _open_osfhandle (socket (AF_INET, SOCK_STREAM, 0), 0);
		1053	#else
612	int pipefd [2];	1054	int pipefd [2];
613		1055
614	if (pipe (pipefd) < 0	1056	if (pipe (pipefd) < 0
615	|| close (pipefd [1]) < 0	1057	|| close (pipefd [1]) < 0
616	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1058	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
617	abort (); /*D*/	1059	abort (); /*D*/
618		1060
619	close_pipe = pipefd [0];	1061	close_fd = pipefd [0];
		1062	#endif
620	}	1063	}
621		1064
622	req->type = EIO_DUP2;	1065	req->type = EIO_DUP2;
623	req->int1 = close_pipe;	1066	req->int1 = close_fd;
624	req->sv2 = newSVsv (fh);	1067	req->sv2 = newSVsv (fh);
625	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1068	req->int2 = fd;
626		1069
627	REQ_SEND (req);	1070	REQ_SEND (req);
628	}	1071	}
629		1072
630	void	1073	void
631	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)
632	ALIAS:	1075	ALIAS:
633	aio_read = EIO_READ	1076	aio_read = EIO_READ
634	aio_write = EIO_WRITE	1077	aio_write = EIO_WRITE
635	PROTOTYPE: $$$$$;$
636	PPCODE:	1078	PPCODE:
637	{	1079	{
638	STRLEN svlen;	1080	STRLEN svlen;
		1081	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
639	char *svptr = SvPVbyte (data, svlen);	1082	char *svptr = SvPVbyte (data, svlen);
640	UV len = SvUV (length);	1083	UV len = SvUV (length);
641
642	SvUPGRADE (data, SVt_PV);
643	SvPOK_on (data);
644		1084
645	if (dataoffset < 0)	1085	if (dataoffset < 0)
646	dataoffset += svlen;	1086	dataoffset += svlen;
647		1087
648	if (dataoffset < 0 || dataoffset > svlen)	1088	if (dataoffset < 0 || dataoffset > svlen)
…		…
654	if (!SvOK (length) || len + dataoffset > svlen)	1094	if (!SvOK (length) || len + dataoffset > svlen)
655	len = svlen - dataoffset;	1095	len = svlen - dataoffset;
656	}	1096	}
657	else	1097	else
658	{	1098	{
659	/* read: grow scalar as necessary */	1099	/* read: check type and grow scalar as necessary */
		1100	SvUPGRADE (data, SVt_PV);
660	svptr = SvGROW (data, len + dataoffset + 1);	1101	svptr = SvGROW (data, len + dataoffset + 1);
661	}	1102	}
662		1103
663	if (len < 0)
664	croak ("length must not be negative");
665
666	{	1104	{
667	dREQ;	1105	dREQ;
668		1106
669	req->type = ix;	1107	req->type = ix;
670	req->sv1 = newSVsv (fh);	1108	req->sv1 = newSVsv (fh);
671	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1109	req->int1 = fd;
672	: IoOFP (sv_2io (fh)));
673	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1110	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
674	req->size = len;	1111	req->size = len;
675	req->sv2 = SvREFCNT_inc (data);	1112	req->sv2 = SvREFCNT_inc (data);
676	req->ptr2 = (char *)svptr + dataoffset;	1113	req->ptr2 = (char *)svptr + dataoffset;
677	req->stroffset = dataoffset;	1114	req->stroffset = dataoffset;
…		…
686	}	1123	}
687	}	1124	}
688		1125
689	void	1126	void
690	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1127	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
691	PROTOTYPE: $$;$	1128	ALIAS:
		1129	aio_readlink = EIO_READLINK
		1130	aio_realpath = EIO_REALPATH
692	PPCODE:	1131	PPCODE:
693	{	1132	{
694	SV *data;	1133	SV *data;
695	dREQ;	1134	dREQ;
696		1135
697	req->type = EIO_READLINK;	1136	req->type = ix;
698	req->sv1 = newSVsv (path);	1137	req->sv1 = newSVsv (path);
699	req->ptr1 = SvPVbyte_nolen (req->sv1);	1138	req->ptr1 = SvPVbyte_nolen (req->sv1);
700		1139
701	REQ_SEND;	1140	REQ_SEND;
702	}	1141	}
703		1142
704	void	1143	void
705	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)
706	PROTOTYPE: $$$$;$
707	PPCODE:	1145	PPCODE:
708	{	1146	{
		1147	int ifd = s_fileno_croak (in_fh , 0);
		1148	int ofd = s_fileno_croak (out_fh, 1);
709	dREQ;	1149	dREQ;
710		1150
711	req->type = EIO_SENDFILE;	1151	req->type = EIO_SENDFILE;
712	req->sv1 = newSVsv (out_fh);	1152	req->sv1 = newSVsv (out_fh);
713	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1153	req->int1 = ofd;
714	req->sv2 = newSVsv (in_fh);	1154	req->sv2 = newSVsv (in_fh);
715	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1155	req->int2 = ifd;
716	req->offs = SvVAL64 (in_offset);	1156	req->offs = in_offset;
717	req->size = length;	1157	req->size = length;
718		1158
719	REQ_SEND;	1159	REQ_SEND;
720	}	1160	}
721		1161
722	void	1162	void
723	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1163	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
724	PROTOTYPE: $$$;$
725	PPCODE:	1164	PPCODE:
726	{	1165	{
		1166	int fd = s_fileno_croak (fh, 0);
727	dREQ;	1167	dREQ;
728		1168
729	req->type = EIO_READAHEAD;	1169	req->type = EIO_READAHEAD;
730	req->sv1 = newSVsv (fh);	1170	req->sv1 = newSVsv (fh);
731	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1171	req->int1 = fd;
732	req->offs = SvVAL64 (offset);	1172	req->offs = offset;
733	req->size = length;	1173	req->size = length;
734		1174
735	REQ_SEND;	1175	REQ_SEND;
736	}	1176	}
737		1177
738	void	1178	void
739	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1179	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
740	ALIAS:	1180	ALIAS:
741	aio_stat = EIO_STAT	1181	aio_stat = EIO_STAT
742	aio_lstat = EIO_LSTAT	1182	aio_lstat = EIO_LSTAT
		1183	aio_statvfs = EIO_STATVFS
743	PPCODE:	1184	PPCODE:
744	{	1185	{
745	dREQ;	1186	dREQ;
746		1187
747	req->sv1 = newSVsv (fh_or_path);	1188	req->sv1 = newSVsv (fh_or_path);
…		…
751	req->type = ix;	1192	req->type = ix;
752	req->ptr1 = SvPVbyte_nolen (req->sv1);	1193	req->ptr1 = SvPVbyte_nolen (req->sv1);
753	}	1194	}
754	else	1195	else
755	{	1196	{
756	req->type = EIO_FSTAT;	1197	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
757	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1198	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
758	}	1199	}
759		1200
760	REQ_SEND;	1201	REQ_SEND;
761	}	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
762		1219
763	void	1220	void
764	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)
765	PPCODE:	1222	PPCODE:
766	{	1223	{
…		…
856		1313
857	REQ_SEND;	1314	REQ_SEND;
858	}	1315	}
859		1316
860	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
861	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1335	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
862	ALIAS:	1336	ALIAS:
863	aio_unlink = EIO_UNLINK	1337	aio_unlink = EIO_UNLINK
864	aio_rmdir = EIO_RMDIR	1338	aio_rmdir = EIO_RMDIR
865	aio_readdir = EIO_READDIR	1339	aio_readdir = EIO_READDIR
…		…
907		1381
908	REQ_SEND;	1382	REQ_SEND;
909	}	1383	}
910		1384
911	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
912	aio_busy (double delay, SV *callback=&PL_sv_undef)	1460	aio_busy (double delay, SV *callback=&PL_sv_undef)
913	PPCODE:	1461	PPCODE:
914	{	1462	{
915	dREQ;	1463	dREQ;
916		1464
…		…
920	REQ_SEND;	1468	REQ_SEND;
921	}	1469	}
922		1470
923	void	1471	void
924	aio_group (SV *callback=&PL_sv_undef)	1472	aio_group (SV *callback=&PL_sv_undef)
925	PROTOTYPE: ;$
926	PPCODE:	1473	PPCODE:
927	{	1474	{
928	dREQ;	1475	dREQ;
929		1476
930	req->type = EIO_GROUP;	1477	req->type = EIO_GROUP;
931		1478
932	req_submit (req);	1479	req_submit (req);
933	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1480	XPUSHs (req_sv (req, aio_grp_stash));
934	}	1481	}
935		1482
936	void	1483	void
937	aio_nop (SV *callback=&PL_sv_undef)	1484	aio_nop (SV *callback=&PL_sv_undef)
938	ALIAS:	1485	ALIAS:
…		…
947	REQ_SEND;	1494	REQ_SEND;
948	}	1495	}
949		1496
950	int	1497	int
951	aioreq_pri (int pri = 0)	1498	aioreq_pri (int pri = 0)
952	PROTOTYPE: ;$
953	CODE:	1499	CODE:
954	RETVAL = next_pri;	1500	RETVAL = next_pri;
955	if (items > 0)	1501	if (items > 0)
956	{	1502	{
957	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1503	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
969	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1515	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
970	next_pri = nice;	1516	next_pri = nice;
971		1517
972	void	1518	void
973	flush ()	1519	flush ()
974	PROTOTYPE:
975	CODE:	1520	CODE:
976	while (eio_nreqs ())	1521	while (eio_nreqs ())
977	{	1522	{
978	poll_wait ();	1523	poll_wait ();
979	poll_cb ();	1524	poll_cb ();
980	}	1525	}
981		1526
982	int	1527	int
983	poll()	1528	poll ()
984	PROTOTYPE:
985	CODE:	1529	CODE:
986	poll_wait ();	1530	poll_wait ();
987	RETVAL = poll_cb ();	1531	RETVAL = poll_cb ();
988	OUTPUT:	1532	OUTPUT:
989	RETVAL	1533	RETVAL
990		1534
991	int	1535	int
992	poll_fileno()	1536	poll_fileno ()
993	PROTOTYPE:
994	CODE:	1537	CODE:
995	RETVAL = respipe [0];	1538	RETVAL = s_epipe_fd (&respipe);
996	OUTPUT:	1539	OUTPUT:
997	RETVAL	1540	RETVAL
998		1541
999	int	1542	int
1000	poll_cb(...)	1543	poll_cb (...)
1001	PROTOTYPE:	1544	PROTOTYPE:
1002	CODE:	1545	CODE:
1003	RETVAL = poll_cb ();	1546	RETVAL = poll_cb ();
1004	OUTPUT:	1547	OUTPUT:
1005	RETVAL	1548	RETVAL
1006		1549
1007	void	1550	void
1008	poll_wait()	1551	poll_wait ()
1009	PROTOTYPE:
1010	CODE:	1552	CODE:
1011	poll_wait ();	1553	poll_wait ();
1012		1554
1013	int	1555	int
1014	nreqs()	1556	nreqs ()
1015	PROTOTYPE:
1016	CODE:	1557	CODE:
1017	RETVAL = eio_nreqs ();	1558	RETVAL = eio_nreqs ();
1018	OUTPUT:	1559	OUTPUT:
1019	RETVAL	1560	RETVAL
1020		1561
1021	int	1562	int
1022	nready()	1563	nready ()
1023	PROTOTYPE:
1024	CODE:	1564	CODE:
1025	RETVAL = eio_nready ();	1565	RETVAL = eio_nready ();
1026	OUTPUT:	1566	OUTPUT:
1027	RETVAL	1567	RETVAL
1028		1568
1029	int	1569	int
1030	npending()	1570	npending ()
1031	PROTOTYPE:
1032	CODE:	1571	CODE:
1033	RETVAL = eio_npending ();	1572	RETVAL = eio_npending ();
1034	OUTPUT:	1573	OUTPUT:
1035	RETVAL	1574	RETVAL
1036		1575
1037	int	1576	int
1038	nthreads()	1577	nthreads ()
1039	PROTOTYPE:
1040	CODE:	1578	CODE:
1041	RETVAL = eio_nthreads ();	1579	RETVAL = eio_nthreads ();
1042	OUTPUT:	1580	OUTPUT:
1043	RETVAL	1581	RETVAL
1044		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
1045	void _on_next_submit (SV *cb)	1705	void _on_next_submit (SV *cb)
1046	CODE:	1706	CODE:
1047	SvREFCNT_dec (on_next_submit);	1707	SvREFCNT_dec (on_next_submit);
1048	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1708	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1049		1709
…		…
1063	if (GIMME_V != G_VOID)	1723	if (GIMME_V != G_VOID)
1064	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1724	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1065		1725
1066	if (items > 1)	1726	if (items > 1)
1067	{	1727	{
1068	SV *cb_cv = get_cb (callback);	1728	SV *cb_cv =get_cb (callback);
1069		1729
1070	SvREFCNT_dec (req->callback);	1730	SvREFCNT_dec (req->callback);
1071	req->callback = SvREFCNT_inc (cb_cv);	1731	req->callback = SvREFCNT_inc (cb_cv);
1072	}	1732	}
1073	}	1733	}
…		…
1110	AV *av;	1770	AV *av;
1111		1771
1112	grp->errorno = errno;	1772	grp->errorno = errno;
1113		1773
1114	av = newAV ();	1774	av = newAV ();
		1775	av_extend (av, items - 1);
1115		1776
1116	for (i = 1; i < items; ++i )	1777	for (i = 1; i < items; ++i )
1117	av_push (av, newSVsv (ST (i)));	1778	av_push (av, newSVsv (ST (i)));
1118		1779
1119	SvREFCNT_dec (grp->sv1);	1780	SvREFCNT_dec (grp->sv1);
…		…
1133	void	1794	void
1134	feed (aio_req grp, SV *callback=&PL_sv_undef)	1795	feed (aio_req grp, SV *callback=&PL_sv_undef)
1135	CODE:	1796	CODE:
1136	{	1797	{
1137	SvREFCNT_dec (grp->sv2);	1798	SvREFCNT_dec (grp->sv2);
1138	grp->sv2 = newSVsv (callback);	1799	grp->sv2 = newSVsv (callback);
		1800	grp->feed = aio_grp_feed;
1139		1801
1140	if (grp->int2 <= 0)	1802	if (grp->int2 <= 0)
1141	grp->int2 = 2;	1803	grp->int2 = 2;
1142		1804
1143	eio_grp_limit (grp, grp->int2);	1805	eio_grp_limit (grp, grp->int2);

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