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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.123 by root, Sat May 17 12:17:25 2008 UTC vs.
Revision 1.183 by root, Tue Jul 5 09:24:11 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>
		16	#include <sys/statvfs.h>
14	#include <limits.h>	17	#include <limits.h>
15	#include <fcntl.h>	18	#include <fcntl.h>
16	#include <sched.h>	19	#include <sched.h>
		20
		21	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		22	# include <sys/mman.h>
		23	#endif
17		24
18	/* perl namespace pollution */	25	/* perl namespace pollution */
19	#undef VERSION	26	#undef VERSION
20		27
21	#ifdef _WIN32	28	#ifdef _WIN32
…		…
65	# include <signal.h>	72	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent	73	# define EIO_STRUCT_DIRENT struct dirent
67		74
68	#endif	75	#endif
69		76
		77	/* perl stupidly overrides readdir and maybe others */
		78	/* with thread-unsafe versions, imagine that :( */
		79	#undef readdir
		80	#undef opendir
		81	#undef closedir
		82
70	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
71		84
72	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
73	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
74	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
75	#else	90	#else
		91	# define VAL64 NV
76	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
77	#endif	94	#endif
78		95
79	static HV *stash;	96	/*****************************************************************************/
		97
		98	#if __GNUC__ >= 3
		99	# define expect(expr,value) __builtin_expect ((expr),(value))
		100	#else
		101	# define expect(expr,value) (expr)
		102	#endif
		103
		104	#define expect_false(expr) expect ((expr) != 0, 0)
		105	#define expect_true(expr) expect ((expr) != 0, 1)
		106
		107	/*****************************************************************************/
		108
80	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
		110	typedef int aio_rfd; /* read file desriptor */
		111	typedef int aio_wfd; /* write file descriptor */
81		112
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		114
85	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
86	SV *callback; \	116	SV *callback; \
87	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
88	STRLEN stroffset; \	118	STRLEN stroffset; \
89	SV *self;	119	SV *self;
90		120
91	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
92		122
		123	#include "libeio/config.h"
93	#include "libeio/eio.h"	124	#include "libeio/eio.h"
		125
		126	/* Linux/others */
		127	#ifndef O_ASYNC
		128	# define O_ASYNC 0
		129	#endif
		130	#ifndef O_DIRECT
		131	# define O_DIRECT 0
		132	#endif
		133	#ifndef O_NOATIME
		134	# define O_NOATIME 0
		135	#endif
		136
		137	/* POSIX */
		138	#ifndef O_CLOEXEC
		139	# define O_CLOEXEC 0
		140	#endif
		141	#ifndef O_NOFOLLOW
		142	# define O_NOFOLLOW 0
		143	#endif
		144	#ifndef O_NOCTTY
		145	# define O_NOCTTY 0
		146	#endif
		147	#ifndef O_NONBLOCK
		148	# define O_NONBLOCK 0
		149	#endif
		150	#ifndef O_EXEC
		151	# define O_EXEC 0
		152	#endif
		153	#ifndef O_SEARCH
		154	# define O_SEARCH 0
		155	#endif
		156	#ifndef O_DIRECTORY
		157	# define O_DIRECTORY 0
		158	#endif
		159	#ifndef O_DSYNC
		160	# define O_DSYNC 0
		161	#endif
		162	#ifndef O_RSYNC
		163	# define O_RSYNC 0
		164	#endif
		165	#ifndef O_SYNC
		166	# define O_SYNC 0
		167	#endif
		168	#ifndef O_TTY_INIT
		169	# define O_TTY_INIT 0
		170	#endif
		171
		172	#ifndef POSIX_FADV_NORMAL
		173	# define POSIX_FADV_NORMAL 0
		174	#endif
		175	#ifndef POSIX_FADV_SEQUENTIAL
		176	# define POSIX_FADV_SEQUENTIAL 0
		177	#endif
		178	#ifndef POSIX_FADV_RANDOM
		179	# define POSIX_FADV_RANDOM 0
		180	#endif
		181	#ifndef POSIX_FADV_NOREUSE
		182	# define POSIX_FADV_NOREUSE 0
		183	#endif
		184	#ifndef POSIX_FADV_WILLNEED
		185	# define POSIX_FADV_WILLNEED 0
		186	#endif
		187	#ifndef POSIX_FADV_DONTNEED
		188	# define POSIX_FADV_DONTNEED 0
		189	#endif
		190
		191	#if !HAVE_POSIX_FADVISE
		192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		193	#endif
		194
		195	#ifndef POSIX_MADV_NORMAL
		196	# define POSIX_MADV_NORMAL 0
		197	#endif
		198	#ifndef POSIX_MADV_SEQUENTIAL
		199	# define POSIX_MADV_SEQUENTIAL 0
		200	#endif
		201	#ifndef POSIX_MADV_RANDOM
		202	# define POSIX_MADV_RANDOM 0
		203	#endif
		204	#ifndef POSIX_MADV_WILLNEED
		205	# define POSIX_MADV_WILLNEED 0
		206	#endif
		207	#ifndef POSIX_MADV_DONTNEED
		208	# define POSIX_MADV_DONTNEED 0
		209	#endif
		210
		211	#if !HAVE_POSIX_MADVISE
		212	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		213	#endif
		214
		215	#ifndef PROT_NONE
		216	# define PROT_NONE 0
		217	#endif
		218	#ifndef PROT_READ
		219	# define PROT_READ 0
		220	#endif
		221	#ifndef PROT_WRITE
		222	# define PROT_READ 0
		223	#endif
		224	#ifndef PROT_EXEC
		225	# define PROT_EXEC 0
		226	#endif
		227
		228	#ifndef ST_NODEV
		229	# define ST_NODEV 0
		230	#endif
		231	#ifndef ST_NOEXEC
		232	# define ST_NOEXEC 0
		233	#endif
		234	#ifndef ST_SYNCHRONOUS
		235	# define ST_SYNCHRONOUS 0
		236	#endif
		237	#ifndef ST_MANDLOCK
		238	# define ST_MANDLOCK 0
		239	#endif
		240	#ifndef ST_WRITE
		241	# define ST_WRITE 0
		242	#endif
		243	#ifndef ST_APPEND
		244	# define ST_APPEND 0
		245	#endif
		246	#ifndef ST_IMMUTABLE
		247	# define ST_IMMUTABLE 0
		248	#endif
		249	#ifndef ST_NOATIME
		250	# define ST_NOATIME 0
		251	#endif
		252	#ifndef ST_NODIRATIME
		253	# define ST_NODIRATIME 0
		254	#endif
		255	#ifndef ST_RELATIME
		256	# define ST_RELATIME 0
		257	#endif
		258
		259	#ifndef S_IFIFO
		260	# define S_IFIFO 0
		261	#endif
		262	#ifndef S_IFCHR
		263	# define S_IFCHR 0
		264	#endif
		265	#ifndef S_IFBLK
		266	# define S_IFBLK 0
		267	#endif
		268	#ifndef S_IFLNK
		269	# define S_IFLNK 0
		270	#endif
		271	#ifndef S_IFREG
		272	# define S_IFREG 0
		273	#endif
		274	#ifndef S_IFDIR
		275	# define S_IFDIR 0
		276	#endif
		277	#ifndef S_IFWHT
		278	# define S_IFWHT 0
		279	#endif
		280	#ifndef S_IFSOCK
		281	# define S_IFSOCK 0
		282	#endif
		283
		284	#ifndef MAP_ANONYMOUS
		285	# ifdef MAP_ANON
		286	# define MAP_ANONYMOUS MAP_ANON
		287	# else
		288	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		289	# endif
		290	#endif
		291	#ifndef MAP_HUGETLB
		292	# define MAP_HUGETLB 0
		293	#endif
		294	#ifndef MAP_LOCKED
		295	# define MAP_LOCKED 0
		296	#endif
		297	#ifndef MAP_NORESERVE
		298	# define MAP_NORESERVE 0
		299	#endif
		300	#ifndef MAP_POPULATE
		301	# define MAP_POPULATE 0
		302	#endif
		303	#ifndef MAP_NONBLOCK
		304	# define MAP_NONBLOCK 0
		305	#endif
		306
		307	#ifndef makedev
		308	# define makedev(maj,min) (((maj) << 8) | (min))
		309	#endif
		310	#ifndef major
		311	# define major(dev) ((dev) >> 8)
		312	#endif
		313	#ifndef minor
		314	# define minor(dev) ((dev) & 0xff)
		315	#endif
		316
		317	#ifndef PAGESIZE
		318	# define PAGESIZE sysconf (_SC_PAGESIZE)
		319	#endif
94		320
95	static int req_invoke (eio_req *req);	321	static int req_invoke (eio_req *req);
96	#define EIO_FINISH(req) req_invoke (req)	322	#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);	323	static void req_destroy (eio_req *grp);
100	#define EIO_DESTROY(req) req_destroy (req)	324	#define EIO_DESTROY(req) req_destroy (req)
101		325
102	enum {	326	enum {
103	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
110		334
111	static SV *on_next_submit;	335	static SV *on_next_submit;
112	static int next_pri = EIO_PRI_DEFAULT;	336	static int next_pri = EIO_PRI_DEFAULT;
113	static int max_outstanding;	337	static int max_outstanding;
114		338
115	static int respipe_osf [2], respipe [2] = { -1, -1 };	339	static s_epipe respipe;
116		340
117	static void req_destroy (aio_req req);	341	static void req_destroy (aio_req req);
118	static void req_cancel (aio_req req);	342	static void req_cancel (aio_req req);
119		343
120	static void want_poll (void)	344	static void want_poll (void)
121	{	345	{
122	/* write a dummy byte to the pipe so fh becomes ready */	346	/* write a dummy byte to the pipe so fh becomes ready */
123	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	347	s_epipe_signal (&respipe);
124	}	348	}
125		349
126	static void done_poll (void)	350	static void done_poll (void)
127	{	351	{
128	/* read any signals sent by the worker threads */	352	/* read any signals sent by the worker threads */
129	char buf [4];	353	s_epipe_drain (&respipe);
130	while (respipe_read (respipe [0], buf, 4) == 4)
131	;
132	}	354	}
133		355
134	/* must be called at most once */	356	/* must be called at most once */
135	static SV *req_sv (aio_req req, const char *klass)	357	static SV *req_sv (aio_req req, HV *stash)
136	{	358	{
137	if (!req->self)	359	if (!req->self)
138	{	360	{
139	req->self = (SV *)newHV ();	361	req->self = (SV *)newHV ();
140	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
141	}	363	}
142		364
143	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
144	}	366	}
145		367
146	static aio_req SvAIO_REQ (SV *sv)	368	static aio_req SvAIO_REQ (SV *sv)
147	{	369	{
148	MAGIC *mg;	370	MAGIC *mg;
149		371
150	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	372	if (!SvROK (sv)
		373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		374	&& SvSTASH (SvRV (sv)) != aio_req_stash
		375	&& !sv_derived_from (sv, "IO::AIO::REQ")))
151	croak ("object of class " AIO_REQ_KLASS " expected");	376	croak ("object of class IO::AIO::REQ expected");
152		377
153	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
154		379
155	return mg ? (aio_req)mg->mg_ptr : 0;	380	return mg ? (aio_req)mg->mg_ptr : 0;
156	}	381	}
…		…
162	dSP;	387	dSP;
163		388
164	ENTER;	389	ENTER;
165	SAVETMPS;	390	SAVETMPS;
166	PUSHMARK (SP);	391	PUSHMARK (SP);
167	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	392	XPUSHs (req_sv (grp, aio_grp_stash));
168	PUTBACK;	393	PUTBACK;
169	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	394	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
170	SPAGAIN;	395	SPAGAIN;
171	FREETMPS;	396	FREETMPS;
172	LEAVE;	397	LEAVE;
…		…
175		400
176	static void req_submit (eio_req *req)	401	static void req_submit (eio_req *req)
177	{	402	{
178	eio_submit (req);	403	eio_submit (req);
179		404
180	if (on_next_submit)	405	if (expect_false (on_next_submit))
181	{	406	{
182	dSP;	407	dSP;
183	SV *cb = sv_2mortal (on_next_submit);	408	SV *cb = sv_2mortal (on_next_submit);
184		409
185	on_next_submit = 0;	410	on_next_submit = 0;
…		…
190	}	415	}
191	}	416	}
192		417
193	static int req_invoke (eio_req *req)	418	static int req_invoke (eio_req *req)
194	{	419	{
195	dSP;
196
197	if (req->flags & FLAG_SV2_RO_OFF)	420	if (req->flags & FLAG_SV2_RO_OFF)
198	SvREADONLY_off (req->sv2);	421	SvREADONLY_off (req->sv2);
199		422
200	if (!EIO_CANCELLED (req) && SvOK (req->callback))	423	if (!EIO_CANCELLED (req) && req->callback)
201	{	424	{
		425	dSP;
		426	static SV *sv_result_cache; /* caches the result integer SV */
		427	SV *sv_result;
		428
202	ENTER;	429	ENTER;
203	SAVETMPS;	430	SAVETMPS;
204	PUSHMARK (SP);	431	PUSHMARK (SP);
205	EXTEND (SP, 1);	432	EXTEND (SP, 1);
		433
		434	/* do not recreate the result IV from scratch each time */
		435	if (expect_true (sv_result_cache))
		436	{
		437	sv_result = sv_result_cache; sv_result_cache = 0;
		438	SvIV_set (sv_result, req->result);
		439	SvIOK_only (sv_result);
		440	}
		441	else
		442	{
		443	sv_result = newSViv (req->result);
		444	SvREADONLY_on (sv_result);
		445	}
206		446
207	switch (req->type)	447	switch (req->type)
208	{	448	{
209	case EIO_READDIR:	449	case EIO_READDIR:
210	{	450	{
211	SV *rv = &PL_sv_undef;	451	SV *rv = &PL_sv_undef;
212		452
213	if (req->result >= 0)	453	if (req->result >= 0)
214	{	454	{
215	int i;	455	int i;
216	char *buf = req->ptr2;	456	char *names = (char *)req->ptr2;
		457	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
217	AV *av = newAV ();	458	AV *av = newAV ();
218		459
219	av_extend (av, req->result - 1);	460	av_extend (av, req->result - 1);
220		461
221	for (i = 0; i < req->result; ++i)	462	for (i = 0; i < req->result; ++i)
222	{	463	{
223	SV *sv = newSVpv (buf, 0);	464	if (req->int1 & EIO_READDIR_DENTS)
		465	{
		466	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
224		467
		468	if (req->int1 & EIO_READDIR_CUSTOM2)
		469	{
		470	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		471	AV *avent = newAV ();
		472
		473	av_extend (avent, 2);
		474
		475	if (!sv_type [ent->type])
		476	{
		477	sv_type [ent->type] = newSViv (ent->type);
		478	SvREADONLY_on (sv_type [ent->type]);
		479	}
		480
		481	av_store (avent, 0, namesv);
		482	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		483	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		484
		485	av_store (av, i, newRV_noinc ((SV *)avent));
		486	}
		487	else
225	av_store (av, i, sv);	488	av_store (av, i, namesv);
		489
		490	++ent;
		491	}
		492	else
		493	{
		494	SV *name = newSVpv (names, 0);
		495	av_store (av, i, name);
226	buf += SvCUR (sv) + 1;	496	names += SvCUR (name) + 1;
		497	}
227	}	498	}
228		499
229	rv = sv_2mortal (newRV_noinc ((SV *)av));	500	rv = sv_2mortal (newRV_noinc ((SV *)av));
230	}	501	}
231		502
232	PUSHs (rv);	503	PUSHs (rv);
		504
		505	if (req->int1 & EIO_READDIR_CUSTOM1)
		506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
233	}	507	}
234	break;	508	break;
235		509
236	case EIO_OPEN:	510	case EIO_OPEN:
237	{	511	{
…		…
243	GV *gv = (GV *)sv_newmortal ();	517	GV *gv = (GV *)sv_newmortal ();
244	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
245	char sym [64];	519	char sym [64];
246	int symlen;	520	int symlen;
247		521
248	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
249	gv_init (gv, stash, sym, symlen, 0);	523	gv_init (gv, aio_stash, sym, symlen, 0);
250		524
251	symlen = snprintf (	525	symlen = snprintf (
252	sym,	526	sym,
253	sizeof (sym),	527	sizeof (sym),
254	"%s&=%d",	528	"%s&=%d",
255	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	529	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
256	req->result	530	(int)req->result
257	);	531	);
258		532
259	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	533	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
260	fh = (SV *)gv;	534	fh = (SV *)gv;
261	}	535	}
262		536
263	PUSHs (fh);	537	PUSHs (fh);
264	}	538	}
		539	break;
		540
		541	case EIO_STATVFS:
		542	case EIO_FSTATVFS:
		543	{
		544	SV *rv = &PL_sv_undef;
		545
		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
		566	PUSHs (rv);
		567	}
		568
265	break;	569	break;
266		570
267	case EIO_GROUP:	571	case EIO_GROUP:
268	req->int1 = 2; /* mark group as finished */	572	req->int1 = 2; /* mark group as finished */
269		573
…		…
281	case EIO_NOP:	585	case EIO_NOP:
282	case EIO_BUSY:	586	case EIO_BUSY:
283	break;	587	break;
284		588
285	case EIO_READLINK:	589	case EIO_READLINK:
		590	case EIO_REALPATH:
286	if (req->result > 0)	591	if (req->result > 0)
287	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	592	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
288	break;	593	break;
289		594
290	case EIO_STAT:	595	case EIO_STAT:
291	case EIO_LSTAT:	596	case EIO_LSTAT:
292	case EIO_FSTAT:	597	case EIO_FSTAT:
293	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	598	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
294	PL_laststatval = req->result;	599	PL_laststatval = req->result;
295	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	600	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
296	PUSHs (sv_2mortal (newSViv (req->result)));	601	PUSHs (sv_result);
297	break;	602	break;
298		603
299	case EIO_READ:	604	case EIO_READ:
		605	{
300	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	606	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
301	*SvEND (req->sv2) = 0;	607	*SvEND (req->sv2) = 0;
302	PUSHs (sv_2mortal (newSViv (req->result)));	608	SvPOK_only (req->sv2);
		609	SvSETMAGIC (req->sv2);
		610	PUSHs (sv_result);
		611	}
303	break;	612	break;
304		613
305	case EIO_DUP2:	614	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
306	if (req->result > 0)	615	if (req->result > 0)
307	req->result = 0;	616	SvIV_set (sv_result, 0);
308	/* FALLTHROUGH */	617	/* FALLTHROUGH */
309		618
310	default:	619	default:
311	PUSHs (sv_2mortal (newSViv (req->result)));	620	PUSHs (sv_result);
312	break;	621	break;
313	}	622	}
314		623
315	errno = req->errorno;	624	errno = req->errorno;
316		625
317	PUTBACK;	626	PUTBACK;
318	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	627	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
319	SPAGAIN;	628	SPAGAIN;
		629
		630	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		631	SvREFCNT_dec (sv_result);
		632	else
		633	sv_result_cache = sv_result;
320		634
321	FREETMPS;	635	FREETMPS;
322	LEAVE;	636	LEAVE;
323		637
324	PUTBACK;	638	PUTBACK;
…		…
353	grp->sv2 = 0;	667	grp->sv2 = 0;
354		668
355	eio_grp_cancel (grp);	669	eio_grp_cancel (grp);
356	}	670	}
357		671
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	672	static void
365	create_respipe (void)	673	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);
…		…
414	if (size)	689	if (size)
415	return;	690	return;
416		691
417	etp_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
		738	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		739	{
		740	int old_errno = errno;
		741	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		742	errno = old_errno;
		743
		744	mg->mg_obj = 0; /* just in case */
		745
		746	SvREADONLY_off (sv);
		747
		748	if (SvPVX (sv) != mg->mg_ptr)
		749	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		750
		751	SvCUR_set (sv, 0);
		752	SvPVX (sv) = 0;
		753	SvOK_off (sv);
		754
		755	return 0;
		756	}
		757
		758	static MGVTBL mmap_vtbl = {
		759	0, 0, 0, 0, mmap_free
		760	};
		761
		762	/*****************************************************************************/
		763
		764	static SV *
		765	get_cb (SV *cb_sv)
		766	{
		767	SvGETMAGIC (cb_sv);
		768	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		769	}
		770
447	#define dREQ \	771	#define dREQ \
		772	SV *cb_cv; \
448	aio_req req; \	773	aio_req req; \
449	int req_pri = next_pri; \	774	int req_pri = next_pri; \
450	next_pri = EIO_PRI_DEFAULT; \	775	next_pri = EIO_PRI_DEFAULT; \
451	\	776	\
452	if (SvOK (callback) && !SvROK (callback)) \	777	cb_cv = get_cb (callback); \
453	croak ("callback must be undef or of reference type"); \
454	\	778	\
455	Newz (0, req, 1, eio_req); \	779	Newz (0, req, 1, eio_req); \
456	if (!req) \	780	if (!req) \
457	croak ("out of memory during eio_req allocation"); \	781	croak ("out of memory during eio_req allocation"); \
458	\	782	\
459	req->callback = newSVsv (callback); \	783	req->callback = SvREFCNT_inc (cb_cv); \
460	req->pri = req_pri	784	req->pri = req_pri
461		785
462	#define REQ_SEND \	786	#define REQ_SEND \
		787	PUTBACK; \
463	req_submit (req); \	788	req_submit (req); \
		789	SPAGAIN; \
464	\	790	\
465	if (GIMME_V != G_VOID) \	791	if (GIMME_V != G_VOID) \
466	XPUSHs (req_sv (req, AIO_REQ_KLASS));	792	XPUSHs (req_sv (req, aio_req_stash));
467		793
468	MODULE = IO::AIO PACKAGE = IO::AIO	794	MODULE = IO::AIO PACKAGE = IO::AIO
469		795
470	PROTOTYPES: ENABLE	796	PROTOTYPES: ENABLE
471		797
472	BOOT:	798	BOOT:
473	{	799	{
		800	static const struct {
		801	const char *name;
		802	IV iv;
		803	} *civ, const_iv[] = {
		804	# define const_niv(name, value) { # name, (IV) value },
		805	# define const_iv(name) { # name, (IV) name },
		806	# define const_eio(name) { # name, (IV) EIO_ ## name },
		807	const_iv (EXDEV)
		808	const_iv (ENOSYS)
		809	const_iv (O_RDONLY)
		810	const_iv (O_WRONLY)
		811	const_iv (O_RDWR)
		812	const_iv (O_CREAT)
		813	const_iv (O_TRUNC)
		814	const_iv (O_EXCL)
		815	const_iv (O_APPEND)
		816
		817	const_iv (O_ASYNC)
		818	const_iv (O_DIRECT)
		819	const_iv (O_NOATIME)
		820
		821	const_iv (O_CLOEXEC)
		822	const_iv (O_NOCTTY)
		823	const_iv (O_NOFOLLOW)
		824	const_iv (O_NONBLOCK)
		825	const_iv (O_EXEC)
		826	const_iv (O_SEARCH)
		827	const_iv (O_DIRECTORY)
		828	const_iv (O_DSYNC)
		829	const_iv (O_RSYNC)
		830	const_iv (O_SYNC)
		831	const_iv (O_TTY_INIT)
		832
		833	const_iv (S_IFIFO)
		834	const_iv (S_IFCHR)
		835	const_iv (S_IFBLK)
		836	const_iv (S_IFLNK)
		837	const_iv (S_IFREG)
		838	const_iv (S_IFDIR)
		839	const_iv (S_IFWHT)
		840	const_iv (S_IFSOCK)
		841	const_iv (S_IFMT)
		842
		843	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		844	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		845	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		846	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		847	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		848	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		849
		850	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		851	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		852	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		853	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		854	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		855
		856	const_iv (ST_RDONLY)
		857	const_iv (ST_NOSUID)
		858	const_iv (ST_NODEV)
		859	const_iv (ST_NOEXEC)
		860	const_iv (ST_SYNCHRONOUS)
		861	const_iv (ST_MANDLOCK)
		862	const_iv (ST_WRITE)
		863	const_iv (ST_APPEND)
		864	const_iv (ST_IMMUTABLE)
		865	const_iv (ST_NOATIME)
		866	const_iv (ST_NODIRATIME)
		867	const_iv (ST_RELATIME)
		868
		869	const_iv (PROT_NONE)
		870	const_iv (PROT_EXEC)
		871	const_iv (PROT_READ)
		872	const_iv (PROT_WRITE)
		873
		874	/*const_iv (MAP_FIXED)*/
		875	const_iv (MAP_PRIVATE)
		876	const_iv (MAP_SHARED)
		877	const_iv (MAP_ANONYMOUS)
		878
		879	/* linuxish */
		880	const_iv (MAP_HUGETLB)
		881	const_iv (MAP_LOCKED)
		882	const_iv (MAP_NORESERVE)
		883	const_iv (MAP_POPULATE)
		884	const_iv (MAP_NONBLOCK)
		885
		886	const_eio (MCL_FUTURE)
		887	const_eio (MCL_CURRENT)
		888
		889	const_eio (MS_ASYNC)
		890	const_eio (MS_INVALIDATE)
		891	const_eio (MS_SYNC)
		892
		893	const_eio (MT_MODIFY)
		894
		895	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		896	const_eio (SYNC_FILE_RANGE_WRITE)
		897	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		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
564	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1025	aio_close (SV *fh, SV *callback=&PL_sv_undef)
565	PROTOTYPE: $;$
566	PPCODE:	1026	PPCODE:
567	{	1027	{
568	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1028	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		1029	int fd = s_fileno_croak (fh, 0);
569	dREQ;	1030	dREQ;
570		1031
571	if (close_pipe < 0)	1032	if (close_pipe < 0)
572	{	1033	{
573	int pipefd [2];	1034	int pipefd [2];
…		…
581	}	1042	}
582		1043
583	req->type = EIO_DUP2;	1044	req->type = EIO_DUP2;
584	req->int1 = close_pipe;	1045	req->int1 = close_pipe;
585	req->sv2 = newSVsv (fh);	1046	req->sv2 = newSVsv (fh);
586	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1047	req->int2 = fd;
587		1048
588	REQ_SEND (req);	1049	REQ_SEND (req);
589	}	1050	}
590		1051
591	void	1052	void
592	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1053	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
593	ALIAS:	1054	ALIAS:
594	aio_read = EIO_READ	1055	aio_read = EIO_READ
595	aio_write = EIO_WRITE	1056	aio_write = EIO_WRITE
596	PROTOTYPE: $$$$$;$
597	PPCODE:	1057	PPCODE:
598	{	1058	{
599	STRLEN svlen;	1059	STRLEN svlen;
		1060	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600	char *svptr = SvPVbyte (data, svlen);	1061	char *svptr = SvPVbyte (data, svlen);
601	UV len = SvUV (length);	1062	UV len = SvUV (length);
602
603	SvUPGRADE (data, SVt_PV);
604	SvPOK_on (data);
605		1063
606	if (dataoffset < 0)	1064	if (dataoffset < 0)
607	dataoffset += svlen;	1065	dataoffset += svlen;
608		1066
609	if (dataoffset < 0 || dataoffset > svlen)	1067	if (dataoffset < 0 || dataoffset > svlen)
…		…
615	if (!SvOK (length) || len + dataoffset > svlen)	1073	if (!SvOK (length) || len + dataoffset > svlen)
616	len = svlen - dataoffset;	1074	len = svlen - dataoffset;
617	}	1075	}
618	else	1076	else
619	{	1077	{
620	/* read: grow scalar as necessary */	1078	/* read: check type and grow scalar as necessary */
		1079	SvUPGRADE (data, SVt_PV);
621	svptr = SvGROW (data, len + dataoffset + 1);	1080	svptr = SvGROW (data, len + dataoffset + 1);
622	}	1081	}
623		1082
624	if (len < 0)
625	croak ("length must not be negative");
626
627	{	1083	{
628	dREQ;	1084	dREQ;
629		1085
630	req->type = ix;	1086	req->type = ix;
631	req->sv1 = newSVsv (fh);	1087	req->sv1 = newSVsv (fh);
632	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1088	req->int1 = fd;
633	: IoOFP (sv_2io (fh)));
634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1089	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635	req->size = len;	1090	req->size = len;
636	req->sv2 = SvREFCNT_inc (data);	1091	req->sv2 = SvREFCNT_inc (data);
637	req->ptr2 = (char *)svptr + dataoffset;	1092	req->ptr2 = (char *)svptr + dataoffset;
638	req->stroffset = dataoffset;	1093	req->stroffset = dataoffset;
…		…
647	}	1102	}
648	}	1103	}
649		1104
650	void	1105	void
651	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1106	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
652	PROTOTYPE: $$;$	1107	ALIAS:
		1108	aio_readlink = EIO_READLINK
		1109	aio_realpath = EIO_REALPATH
653	PPCODE:	1110	PPCODE:
654	{	1111	{
655	SV *data;	1112	SV *data;
656	dREQ;	1113	dREQ;
657		1114
658	req->type = EIO_READLINK;	1115	req->type = ix;
659	req->sv1 = newSVsv (path);	1116	req->sv1 = newSVsv (path);
660	req->ptr1 = SvPVbyte_nolen (req->sv1);	1117	req->ptr1 = SvPVbyte_nolen (req->sv1);
661		1118
662	REQ_SEND;	1119	REQ_SEND;
663	}	1120	}
664		1121
665	void	1122	void
666	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1123	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
667	PROTOTYPE: $$$$;$
668	PPCODE:	1124	PPCODE:
669	{	1125	{
		1126	int ifd = s_fileno_croak (in_fh , 0);
		1127	int ofd = s_fileno_croak (out_fh, 1);
670	dREQ;	1128	dREQ;
671		1129
672	req->type = EIO_SENDFILE;	1130	req->type = EIO_SENDFILE;
673	req->sv1 = newSVsv (out_fh);	1131	req->sv1 = newSVsv (out_fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1132	req->int1 = ofd;
675	req->sv2 = newSVsv (in_fh);	1133	req->sv2 = newSVsv (in_fh);
676	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1134	req->int2 = ifd;
677	req->offs = SvVAL64 (in_offset);	1135	req->offs = in_offset;
678	req->size = length;	1136	req->size = length;
679		1137
680	REQ_SEND;	1138	REQ_SEND;
681	}	1139	}
682		1140
683	void	1141	void
684	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1142	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	1143	PPCODE:
687	{	1144	{
		1145	int fd = s_fileno_croak (fh, 0);
688	dREQ;	1146	dREQ;
689		1147
690	req->type = EIO_READAHEAD;	1148	req->type = EIO_READAHEAD;
691	req->sv1 = newSVsv (fh);	1149	req->sv1 = newSVsv (fh);
692	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1150	req->int1 = fd;
693	req->offs = SvVAL64 (offset);	1151	req->offs = offset;
694	req->size = length;	1152	req->size = length;
695		1153
696	REQ_SEND;	1154	REQ_SEND;
697	}	1155	}
698		1156
699	void	1157	void
700	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1158	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
701	ALIAS:	1159	ALIAS:
702	aio_stat = EIO_STAT	1160	aio_stat = EIO_STAT
703	aio_lstat = EIO_LSTAT	1161	aio_lstat = EIO_LSTAT
		1162	aio_statvfs = EIO_STATVFS
704	PPCODE:	1163	PPCODE:
705	{	1164	{
706	dREQ;	1165	dREQ;
707		1166
708	req->sv1 = newSVsv (fh_or_path);	1167	req->sv1 = newSVsv (fh_or_path);
…		…
712	req->type = ix;	1171	req->type = ix;
713	req->ptr1 = SvPVbyte_nolen (req->sv1);	1172	req->ptr1 = SvPVbyte_nolen (req->sv1);
714	}	1173	}
715	else	1174	else
716	{	1175	{
717	req->type = EIO_FSTAT;	1176	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
718	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1177	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719	}	1178	}
720		1179
721	REQ_SEND;	1180	REQ_SEND;
722	}	1181	}
		1182
		1183	UV
		1184	major (UV dev)
		1185	ALIAS:
		1186	minor = 1
		1187	CODE:
		1188	RETVAL = ix ? major (dev) : minor (dev);
		1189	OUTPUT:
		1190	RETVAL
		1191
		1192	UV
		1193	makedev (UV maj, UV min)
		1194	CODE:
		1195	RETVAL = makedev (maj, min);
		1196	OUTPUT:
		1197	RETVAL
723		1198
724	void	1199	void
725	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1200	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
726	PPCODE:	1201	PPCODE:
727	{	1202	{
…		…
817		1292
818	REQ_SEND;	1293	REQ_SEND;
819	}	1294	}
820		1295
821	void	1296	void
		1297	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1298	PPCODE:
		1299	{
		1300	dREQ;
		1301
		1302	req->type = EIO_READDIR;
		1303	req->sv1 = newSVsv (pathname);
		1304	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1305	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1306
		1307	if (flags & EIO_READDIR_DENTS)
		1308	req->int1 |= EIO_READDIR_CUSTOM2;
		1309
		1310	REQ_SEND;
		1311	}
		1312
		1313	void
822	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1314	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
823	ALIAS:	1315	ALIAS:
824	aio_unlink = EIO_UNLINK	1316	aio_unlink = EIO_UNLINK
825	aio_rmdir = EIO_RMDIR	1317	aio_rmdir = EIO_RMDIR
826	aio_readdir = EIO_READDIR	1318	aio_readdir = EIO_READDIR
…		…
868		1360
869	REQ_SEND;	1361	REQ_SEND;
870	}	1362	}
871		1363
872	void	1364	void
		1365	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1366	ALIAS:
		1367	aio_mtouch = EIO_MTOUCH
		1368	aio_msync = EIO_MSYNC
		1369	PPCODE:
		1370	{
		1371	STRLEN svlen;
		1372	char *svptr = SvPVbyte (data, svlen);
		1373	UV len = SvUV (length);
		1374
		1375	if (offset < 0)
		1376	offset += svlen;
		1377
		1378	if (offset < 0 || offset > svlen)
		1379	croak ("offset outside of scalar");
		1380
		1381	if (!SvOK (length) || len + offset > svlen)
		1382	len = svlen - offset;
		1383
		1384	{
		1385	dREQ;
		1386
		1387	req->type = ix;
		1388	req->sv2 = SvREFCNT_inc (data);
		1389	req->ptr2 = (char *)svptr + offset;
		1390	req->size = len;
		1391	req->int1 = flags;
		1392
		1393	REQ_SEND;
		1394	}
		1395	}
		1396
		1397	void
		1398	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1399	PPCODE:
		1400	{
		1401	STRLEN svlen;
		1402	char *svptr = SvPVbyte (data, svlen);
		1403	UV len = SvUV (length);
		1404
		1405	if (offset < 0)
		1406	offset += svlen;
		1407
		1408	if (offset < 0 || offset > svlen)
		1409	croak ("offset outside of scalar");
		1410
		1411	if (!SvOK (length) || len + offset > svlen)
		1412	len = svlen - offset;
		1413
		1414	{
		1415	dREQ;
		1416
		1417	req->type = EIO_MLOCK;
		1418	req->sv2 = SvREFCNT_inc (data);
		1419	req->ptr2 = (char *)svptr + offset;
		1420	req->size = len;
		1421
		1422	REQ_SEND;
		1423	}
		1424	}
		1425
		1426	void
		1427	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1428	PPCODE:
		1429	{
		1430	dREQ;
		1431
		1432	req->type = EIO_MLOCKALL;
		1433	req->int1 = flags;
		1434
		1435	REQ_SEND;
		1436	}
		1437
		1438	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1439	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1440	PPCODE:
875	{	1441	{
876	dREQ;	1442	dREQ;
877		1443
…		…
881	REQ_SEND;	1447	REQ_SEND;
882	}	1448	}
883		1449
884	void	1450	void
885	aio_group (SV *callback=&PL_sv_undef)	1451	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1452	PPCODE:
888	{	1453	{
889	dREQ;	1454	dREQ;
890		1455
891	req->type = EIO_GROUP;	1456	req->type = EIO_GROUP;
892		1457
893	eio_submit (req);	1458	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1459	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1460	}
896		1461
897	void	1462	void
898	aio_nop (SV *callback=&PL_sv_undef)	1463	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1464	ALIAS:
…		…
908	REQ_SEND;	1473	REQ_SEND;
909	}	1474	}
910		1475
911	int	1476	int
912	aioreq_pri (int pri = 0)	1477	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1478	CODE:
915	RETVAL = next_pri;	1479	RETVAL = next_pri;
916	if (items > 0)	1480	if (items > 0)
917	{	1481	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1482	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1494	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice;	1495	next_pri = nice;
932		1496
933	void	1497	void
934	flush ()	1498	flush ()
935	PROTOTYPE:
936	CODE:	1499	CODE:
937	while (eio_nreqs ())	1500	while (eio_nreqs ())
938	{	1501	{
939	poll_wait ();	1502	poll_wait ();
940	poll_cb ();	1503	poll_cb ();
941	}	1504	}
942		1505
943	int	1506	int
944	poll()	1507	poll ()
945	PROTOTYPE:
946	CODE:	1508	CODE:
947	poll_wait ();	1509	poll_wait ();
948	RETVAL = poll_cb ();	1510	RETVAL = poll_cb ();
949	OUTPUT:	1511	OUTPUT:
950	RETVAL	1512	RETVAL
951		1513
952	int	1514	int
953	poll_fileno()	1515	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1516	CODE:
956	RETVAL = respipe [0];	1517	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1518	OUTPUT:
958	RETVAL	1519	RETVAL
959		1520
960	int	1521	int
961	poll_cb(...)	1522	poll_cb (...)
962	PROTOTYPE:	1523	PROTOTYPE:
963	CODE:	1524	CODE:
964	RETVAL = poll_cb ();	1525	RETVAL = poll_cb ();
965	OUTPUT:	1526	OUTPUT:
966	RETVAL	1527	RETVAL
967		1528
968	void	1529	void
969	poll_wait()	1530	poll_wait ()
970	PROTOTYPE:
971	CODE:	1531	CODE:
972	poll_wait ();	1532	poll_wait ();
973		1533
974	int	1534	int
975	nreqs()	1535	nreqs ()
976	PROTOTYPE:
977	CODE:	1536	CODE:
978	RETVAL = eio_nreqs ();	1537	RETVAL = eio_nreqs ();
979	OUTPUT:	1538	OUTPUT:
980	RETVAL	1539	RETVAL
981		1540
982	int	1541	int
983	nready()	1542	nready ()
984	PROTOTYPE:
985	CODE:	1543	CODE:
986	RETVAL = eio_nready ();	1544	RETVAL = eio_nready ();
987	OUTPUT:	1545	OUTPUT:
988	RETVAL	1546	RETVAL
989		1547
990	int	1548	int
991	npending()	1549	npending ()
992	PROTOTYPE:
993	CODE:	1550	CODE:
994	RETVAL = eio_npending ();	1551	RETVAL = eio_npending ();
995	OUTPUT:	1552	OUTPUT:
996	RETVAL	1553	RETVAL
997		1554
998	int	1555	int
999	nthreads()	1556	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1557	CODE:
1002	RETVAL = eio_nthreads ();	1558	RETVAL = eio_nthreads ();
1003	OUTPUT:	1559	OUTPUT:
1004	RETVAL	1560	RETVAL
1005		1561
		1562	int
		1563	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1564	CODE:
		1565	RETVAL = posix_fadvise (fh, offset, length, advice);
		1566	OUTPUT:
		1567	RETVAL
		1568
		1569	ssize_t
		1570	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1571	CODE:
		1572	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1573	OUTPUT:
		1574	RETVAL
		1575
		1576	void
		1577	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1578	PPCODE:
		1579	sv_unmagic (scalar, MMAP_MAGIC);
		1580	{
		1581	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1582	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1583	if (addr == (void *)-1)
		1584	XSRETURN_NO;
		1585
		1586	sv_force_normal (scalar);
		1587
		1588	/* we store the length in mg_obj, as namlen is I32 :/ */
		1589	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1590	->mg_obj = (SV *)length;
		1591
		1592	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1593
		1594	if (!(prot & PROT_WRITE))
		1595	SvREADONLY_on (scalar);
		1596
		1597	if (SvLEN (scalar))
		1598	Safefree (SvPVX (scalar));
		1599
		1600	SvPVX (scalar) = (char *)addr;
		1601	SvCUR_set (scalar, length);
		1602	SvLEN_set (scalar, 0);
		1603	SvPOK_only (scalar);
		1604
		1605	XSRETURN_YES;
		1606	}
		1607
		1608	void
		1609	munmap (SV *scalar)
		1610	CODE:
		1611	sv_unmagic (scalar, MMAP_MAGIC);
		1612
		1613	int
		1614	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1615	ALIAS:
		1616	mprotect = 1
		1617	CODE:
		1618	{
		1619	STRLEN svlen;
		1620	void *addr = SvPVbyte (scalar, svlen);
		1621	size_t len = SvUV (length);
		1622
		1623	if (offset < 0)
		1624	offset += svlen;
		1625
		1626	if (offset < 0 || offset > svlen)
		1627	croak ("offset outside of scalar");
		1628
		1629	if (!SvOK (length) || len + offset > svlen)
		1630	len = svlen - offset;
		1631
		1632	addr = (void *)(((intptr_t)addr) + offset);
		1633	eio_page_align (&addr, &len);
		1634
		1635	switch (ix)
		1636	{
		1637	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1638	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1639	}
		1640	}
		1641	OUTPUT:
		1642	RETVAL
		1643
		1644	int
		1645	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1646	CODE:
		1647	{
		1648	STRLEN svlen;
		1649	void *addr = SvPVbyte (scalar, svlen);
		1650	size_t len = SvUV (length);
		1651
		1652	if (offset < 0)
		1653	offset += svlen;
		1654
		1655	if (offset < 0 || offset > svlen)
		1656	croak ("offset outside of scalar");
		1657
		1658	if (!SvOK (length) || len + offset > svlen)
		1659	len = svlen - offset;
		1660
		1661	addr = (void *)(((intptr_t)addr) + offset);
		1662	eio_page_align (&addr, &len);
		1663	#if _POSIX_MEMLOCK_RANGE
		1664	RETVAL = munlock (addr, len);
		1665	#else
		1666	RETVAL = ((errno = ENOSYS), -1);
		1667	#endif
		1668	}
		1669	OUTPUT:
		1670	RETVAL
		1671
		1672	int
		1673	munlockall ()
		1674	CODE:
		1675	#if _POSIX_MEMLOCK
		1676	munlockall ();
		1677	#else
		1678	RETVAL = -1;
		1679	errno = ENOSYS;
		1680	#endif
		1681	OUTPUT:
		1682	RETVAL
		1683
1006	void _on_next_submit (SV *cb)	1684	void _on_next_submit (SV *cb)
1007	CODE:	1685	CODE:
1008	SvREFCNT_dec (on_next_submit);	1686	SvREFCNT_dec (on_next_submit);
1009	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1687	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010		1688
…		…
1017	CODE:	1695	CODE:
1018	eio_cancel (req);	1696	eio_cancel (req);
1019		1697
1020	void	1698	void
1021	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1699	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1022	CODE:	1700	PPCODE:
		1701	{
		1702	if (GIMME_V != G_VOID)
		1703	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1704
		1705	if (items > 1)
		1706	{
		1707	SV *cb_cv =get_cb (callback);
		1708
1023	SvREFCNT_dec (req->callback);	1709	SvREFCNT_dec (req->callback);
1024	req->callback = newSVsv (callback);	1710	req->callback = SvREFCNT_inc (cb_cv);
		1711	}
		1712	}
1025		1713
1026	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1714	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027		1715
1028	void	1716	void
1029	add (aio_req grp, ...)	1717	add (aio_req grp, ...)
…		…
1061	AV *av;	1749	AV *av;
1062		1750
1063	grp->errorno = errno;	1751	grp->errorno = errno;
1064		1752
1065	av = newAV ();	1753	av = newAV ();
		1754	av_extend (av, items - 1);
1066		1755
1067	for (i = 1; i < items; ++i )	1756	for (i = 1; i < items; ++i )
1068	av_push (av, newSVsv (ST (i)));	1757	av_push (av, newSVsv (ST (i)));
1069		1758
1070	SvREFCNT_dec (grp->sv1);	1759	SvREFCNT_dec (grp->sv1);
…		…
1084	void	1773	void
1085	feed (aio_req grp, SV *callback=&PL_sv_undef)	1774	feed (aio_req grp, SV *callback=&PL_sv_undef)
1086	CODE:	1775	CODE:
1087	{	1776	{
1088	SvREFCNT_dec (grp->sv2);	1777	SvREFCNT_dec (grp->sv2);
1089	grp->sv2 = newSVsv (callback);	1778	grp->sv2 = newSVsv (callback);
		1779	grp->feed = aio_grp_feed;
1090		1780
1091	if (grp->int2 <= 0)	1781	if (grp->int2 <= 0)
1092	grp->int2 = 2;	1782	grp->int2 = 2;
1093		1783
1094	eio_grp_limit (grp, grp->int2);	1784	eio_grp_limit (grp, grp->int2);

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