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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.121 by root, Tue May 13 18:50:27 2008 UTC vs.
Revision 1.184 by root, Tue Jul 5 20:34:42 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
		121	#define EIO_NO_WRAPPERS 1
		122
		123	#include "libeio/config.h"
91	#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
92		320
93	static int req_invoke (eio_req *req);	321	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	322	#define EIO_FINISH(req) req_invoke (req)
95	static void aio_grp_feed (eio_req *grp);
96	#define EIO_FEED(req) aio_grp_feed (req)
97	static void req_destroy (eio_req *grp);	323	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	324	#define EIO_DESTROY(req) req_destroy (req)
99		325
100	enum {	326	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
108		334
109	static SV *on_next_submit;	335	static SV *on_next_submit;
110	static int next_pri = EIO_PRI_DEFAULT;	336	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	337	static int max_outstanding;
112		338
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	339	static s_epipe respipe;
114		340
115	static void req_destroy (aio_req req);	341	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	342	static void req_cancel (aio_req req);
117		343
118	static void want_poll (void)	344	static void want_poll (void)
119	{	345	{
120	/* write a dummy byte to the pipe so fh becomes ready */	346	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	347	s_epipe_signal (&respipe);
122	}	348	}
123		349
124	static void done_poll (void)	350	static void done_poll (void)
125	{	351	{
126	/* read any signals sent by the worker threads */	352	/* read any signals sent by the worker threads */
127	char buf [4];	353	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	354	}
131		355
132	/* must be called at most once */	356	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	357	static SV *req_sv (aio_req req, HV *stash)
134	{	358	{
135	if (!req->self)	359	if (!req->self)
136	{	360	{
137	req->self = (SV *)newHV ();	361	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	363	}
140		364
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	366	}
143		367
144	static aio_req SvAIO_REQ (SV *sv)	368	static aio_req SvAIO_REQ (SV *sv)
145	{	369	{
146	MAGIC *mg;	370	MAGIC *mg;
147		371
148	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")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	376	croak ("object of class IO::AIO::REQ expected");
150		377
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		379
153	return mg ? (aio_req)mg->mg_ptr : 0;	380	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	381	}
…		…
160	dSP;	387	dSP;
161		388
162	ENTER;	389	ENTER;
163	SAVETMPS;	390	SAVETMPS;
164	PUSHMARK (SP);	391	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	392	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	393	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	394	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	395	SPAGAIN;
169	FREETMPS;	396	FREETMPS;
170	LEAVE;	397	LEAVE;
…		…
173		400
174	static void req_submit (eio_req *req)	401	static void req_submit (eio_req *req)
175	{	402	{
176	eio_submit (req);	403	eio_submit (req);
177		404
178	if (on_next_submit)	405	if (expect_false (on_next_submit))
179	{	406	{
180	dSP;	407	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	408	SV *cb = sv_2mortal (on_next_submit);
182		409
183	on_next_submit = 0;	410	on_next_submit = 0;
…		…
188	}	415	}
189	}	416	}
190		417
191	static int req_invoke (eio_req *req)	418	static int req_invoke (eio_req *req)
192	{	419	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	420	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	421	SvREADONLY_off (req->sv2);
197		422
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	423	if (!EIO_CANCELLED (req) && req->callback)
199	{	424	{
		425	dSP;
		426	static SV *sv_result_cache; /* caches the result integer SV */
		427	SV *sv_result;
		428
200	ENTER;	429	ENTER;
201	SAVETMPS;	430	SAVETMPS;
202	PUSHMARK (SP);	431	PUSHMARK (SP);
203	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	}
204		446
205	switch (req->type)	447	switch (req->type)
206	{	448	{
207	case EIO_READDIR:	449	case EIO_READDIR:
208	{	450	{
209	SV *rv = &PL_sv_undef;	451	SV *rv = &PL_sv_undef;
210		452
211	if (req->result >= 0)	453	if (req->result >= 0)
212	{	454	{
213	int i;	455	int i;
214	char *buf = req->ptr2;	456	char *names = (char *)req->ptr2;
		457	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215	AV *av = newAV ();	458	AV *av = newAV ();
216		459
217	av_extend (av, req->result - 1);	460	av_extend (av, req->result - 1);
218		461
219	for (i = 0; i < req->result; ++i)	462	for (i = 0; i < req->result; ++i)
220	{	463	{
221	SV *sv = newSVpv (buf, 0);	464	if (req->int1 & EIO_READDIR_DENTS)
		465	{
		466	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		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
223	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);
224	buf += SvCUR (sv) + 1;	496	names += SvCUR (name) + 1;
		497	}
225	}	498	}
226		499
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	500	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	501	}
229		502
230	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))));
231	}	507	}
232	break;	508	break;
233		509
234	case EIO_OPEN:	510	case EIO_OPEN:
235	{	511	{
…		…
241	GV *gv = (GV *)sv_newmortal ();	517	GV *gv = (GV *)sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243	char sym [64];	519	char sym [64];
244	int symlen;	520	int symlen;
245		521
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	523	gv_init (gv, aio_stash, sym, symlen, 0);
248		524
249	symlen = snprintf (	525	symlen = snprintf (
250	sym,	526	sym,
251	sizeof (sym),	527	sizeof (sym),
252	"%s&=%d",	528	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	529	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	530	(int)req->result
255	);	531	);
256		532
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	533	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	534	fh = (SV *)gv;
259	}	535	}
260		536
261	PUSHs (fh);	537	PUSHs (fh);
262	}	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
263	break;	569	break;
264		570
265	case EIO_GROUP:	571	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	572	req->int1 = 2; /* mark group as finished */
267		573
…		…
279	case EIO_NOP:	585	case EIO_NOP:
280	case EIO_BUSY:	586	case EIO_BUSY:
281	break;	587	break;
282		588
283	case EIO_READLINK:	589	case EIO_READLINK:
		590	case EIO_REALPATH:
284	if (req->result > 0)	591	if (req->result > 0)
285	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	592	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
286	break;	593	break;
287		594
288	case EIO_STAT:	595	case EIO_STAT:
289	case EIO_LSTAT:	596	case EIO_LSTAT:
290	case EIO_FSTAT:	597	case EIO_FSTAT:
291	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	598	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
292	PL_laststatval = req->result;	599	PL_laststatval = req->result;
293	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	600	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
294	PUSHs (sv_2mortal (newSViv (req->result)));	601	PUSHs (sv_result);
295	break;	602	break;
296		603
297	case EIO_READ:	604	case EIO_READ:
		605	{
298	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));
299	*SvEND (req->sv2) = 0;	607	*SvEND (req->sv2) = 0;
300	PUSHs (sv_2mortal (newSViv (req->result)));	608	SvPOK_only (req->sv2);
		609	SvSETMAGIC (req->sv2);
		610	PUSHs (sv_result);
		611	}
301	break;	612	break;
302		613
303	case EIO_DUP2:	614	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
304	if (req->result > 0)	615	if (req->result > 0)
305	req->result = 0;	616	SvIV_set (sv_result, 0);
306	/* FALLTHROUGH */	617	/* FALLTHROUGH */
307		618
308	default:	619	default:
309	PUSHs (sv_2mortal (newSViv (req->result)));	620	PUSHs (sv_result);
310	break;	621	break;
311	}	622	}
312		623
313	errno = req->errorno;	624	errno = req->errorno;
314		625
315	PUTBACK;	626	PUTBACK;
316	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	627	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
317	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;
318		634
319	FREETMPS;	635	FREETMPS;
320	LEAVE;	636	LEAVE;
321		637
322	PUTBACK;	638	PUTBACK;
…		…
351	grp->sv2 = 0;	667	grp->sv2 = 0;
352		668
353	eio_grp_cancel (grp);	669	eio_grp_cancel (grp);
354	}	670	}
355		671
356	#ifdef USE_SOCKETS_AS_HANDLES
357	# define TO_SOCKET(x) (win32_get_osfhandle (x))
358	#else
359	# define TO_SOCKET(x) (x)
360	#endif
361
362	static void
363	create_respipe (void)	672	static void create_respipe (void)
364	{	673	{
365	int old_readfd = respipe [0];
366
367	if (respipe [1] >= 0)
368	respipe_close (TO_SOCKET (respipe [1]));
369
370	#ifdef _WIN32
371	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
372	#else
373	if (pipe (respipe))	674	if (s_epipe_renew (&respipe))
374	#endif
375	croak ("unable to initialize result pipe");	675	croak ("IO::AIO: unable to initialize result pipe");
376
377	if (old_readfd >= 0)
378	{
379	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
380	croak ("unable to initialize result pipe(2)");
381
382	respipe_close (respipe [0]);
383	respipe [0] = old_readfd;
384	}
385
386	#ifdef _WIN32
387	int arg = 1;
388	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
389	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
390	#else
391	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
392	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
393	#endif
394	croak ("unable to initialize result pipe(3)");
395
396	respipe_osf [0] = TO_SOCKET (respipe [0]);
397	respipe_osf [1] = TO_SOCKET (respipe [1]);
398	}	676	}
399		677
400	static void poll_wait (void)	678	static void poll_wait (void)
401	{	679	{
402	fd_set rfd;
403
404	while (eio_nreqs ())	680	while (eio_nreqs ())
405	{	681	{
406	int size;	682	int size;
407		683
408	X_LOCK (reslock);	684	X_LOCK (reslock);
…		…
410	X_UNLOCK (reslock);	686	X_UNLOCK (reslock);
411		687
412	if (size)	688	if (size)
413	return;	689	return;
414		690
415	maybe_start_thread ();	691	etp_maybe_start_thread ();
416		692
417	FD_ZERO (&rfd);	693	s_epipe_wait (&respipe);
418	FD_SET (respipe [0], &rfd);
419
420	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421	}	694	}
422	}	695	}
423		696
424	static int poll_cb (void)	697	static int poll_cb (void)
425	{	698	{
426	int res;	699	for (;;)
427
428	do
429	{	700	{
430	res = eio_poll ();	701	int res = eio_poll ();
431		702
432	if (res > 0)	703	if (res > 0)
433	croak (0);	704	croak (0);
		705
		706	if (!max_outstanding || max_outstanding > eio_nreqs ())
		707	return res;
		708
		709	poll_wait ();
434	}	710	}
435	while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437	return res;
438	}	711	}
439		712
440	static void atfork_child (void)	713	static void atfork_child (void)
441	{	714	{
442	create_respipe ();	715	create_respipe ();
443	}	716	}
444		717
		718	/*****************************************************************************/
		719
		720	#if !_POSIX_MAPPED_FILES
		721	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		722	# define munmap(addr,length) (errno = ENOSYS, -1)
		723	#endif
		724
		725	#if !_POSIX_MEMORY_PROTECTION
		726	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		727	# define PROT_NONE 0
		728	# define PROT_WRITE 0
		729	# define MAP_PRIVATE 0
		730	# define MAP_SHARED 0
		731	# define MAP_FIXED 0
		732	#endif
		733
		734	#define MMAP_MAGIC PERL_MAGIC_ext
		735
		736	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		737	{
		738	int old_errno = errno;
		739	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		740	errno = old_errno;
		741
		742	mg->mg_obj = 0; /* just in case */
		743
		744	SvREADONLY_off (sv);
		745
		746	if (SvPVX (sv) != mg->mg_ptr)
		747	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		748
		749	SvCUR_set (sv, 0);
		750	SvPVX (sv) = 0;
		751	SvOK_off (sv);
		752
		753	return 0;
		754	}
		755
		756	static MGVTBL mmap_vtbl = {
		757	0, 0, 0, 0, mmap_free
		758	};
		759
		760	/*****************************************************************************/
		761
		762	static SV * get_cb (SV *cb_sv)
		763	{
		764	SvGETMAGIC (cb_sv);
		765	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		766	}
		767
445	#define dREQ \	768	#define dREQ \
		769	SV *cb_cv; \
446	aio_req req; \	770	aio_req req; \
447	int req_pri = next_pri; \	771	int req_pri = next_pri; \
448	next_pri = EIO_PRI_DEFAULT; \	772	next_pri = EIO_PRI_DEFAULT; \
449	\	773	\
450	if (SvOK (callback) && !SvROK (callback)) \	774	cb_cv = get_cb (callback); \
451	croak ("callback must be undef or of reference type"); \
452	\	775	\
453	Newz (0, req, 1, eio_req); \	776	Newz (0, req, 1, eio_req); \
454	if (!req) \	777	if (!req) \
455	croak ("out of memory during eio_req allocation"); \	778	croak ("out of memory during eio_req allocation"); \
456	\	779	\
457	req->callback = newSVsv (callback); \	780	req->callback = SvREFCNT_inc (cb_cv); \
458	req->pri = req_pri	781	req->pri = req_pri
459		782
460	#define REQ_SEND \	783	#define REQ_SEND \
		784	PUTBACK; \
461	req_submit (req); \	785	req_submit (req); \
		786	SPAGAIN; \
462	\	787	\
463	if (GIMME_V != G_VOID) \	788	if (GIMME_V != G_VOID) \
464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	789	XPUSHs (req_sv (req, aio_req_stash));
465		790
466	MODULE = IO::AIO PACKAGE = IO::AIO	791	MODULE = IO::AIO PACKAGE = IO::AIO
467		792
468	PROTOTYPES: ENABLE	793	PROTOTYPES: ENABLE
469		794
470	BOOT:	795	BOOT:
471	{	796	{
		797	static const struct {
		798	const char *name;
		799	IV iv;
		800	} *civ, const_iv[] = {
		801	# define const_niv(name, value) { # name, (IV) value },
		802	# define const_iv(name) { # name, (IV) name },
		803	# define const_eio(name) { # name, (IV) EIO_ ## name },
		804	const_iv (EXDEV)
		805	const_iv (ENOSYS)
		806	const_iv (O_RDONLY)
		807	const_iv (O_WRONLY)
		808	const_iv (O_RDWR)
		809	const_iv (O_CREAT)
		810	const_iv (O_TRUNC)
		811	const_iv (O_EXCL)
		812	const_iv (O_APPEND)
		813
		814	const_iv (O_ASYNC)
		815	const_iv (O_DIRECT)
		816	const_iv (O_NOATIME)
		817
		818	const_iv (O_CLOEXEC)
		819	const_iv (O_NOCTTY)
		820	const_iv (O_NOFOLLOW)
		821	const_iv (O_NONBLOCK)
		822	const_iv (O_EXEC)
		823	const_iv (O_SEARCH)
		824	const_iv (O_DIRECTORY)
		825	const_iv (O_DSYNC)
		826	const_iv (O_RSYNC)
		827	const_iv (O_SYNC)
		828	const_iv (O_TTY_INIT)
		829
		830	const_iv (S_IFIFO)
		831	const_iv (S_IFCHR)
		832	const_iv (S_IFBLK)
		833	const_iv (S_IFLNK)
		834	const_iv (S_IFREG)
		835	const_iv (S_IFDIR)
		836	const_iv (S_IFWHT)
		837	const_iv (S_IFSOCK)
		838	const_iv (S_IFMT)
		839
		840	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		841	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		842	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		843	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		844	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		845	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		846
		847	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		848	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		849	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		850	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		851	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		852
		853	const_iv (ST_RDONLY)
		854	const_iv (ST_NOSUID)
		855	const_iv (ST_NODEV)
		856	const_iv (ST_NOEXEC)
		857	const_iv (ST_SYNCHRONOUS)
		858	const_iv (ST_MANDLOCK)
		859	const_iv (ST_WRITE)
		860	const_iv (ST_APPEND)
		861	const_iv (ST_IMMUTABLE)
		862	const_iv (ST_NOATIME)
		863	const_iv (ST_NODIRATIME)
		864	const_iv (ST_RELATIME)
		865
		866	const_iv (PROT_NONE)
		867	const_iv (PROT_EXEC)
		868	const_iv (PROT_READ)
		869	const_iv (PROT_WRITE)
		870
		871	/*const_iv (MAP_FIXED)*/
		872	const_iv (MAP_PRIVATE)
		873	const_iv (MAP_SHARED)
		874	const_iv (MAP_ANONYMOUS)
		875
		876	/* linuxish */
		877	const_iv (MAP_HUGETLB)
		878	const_iv (MAP_LOCKED)
		879	const_iv (MAP_NORESERVE)
		880	const_iv (MAP_POPULATE)
		881	const_iv (MAP_NONBLOCK)
		882
		883	const_eio (MCL_FUTURE)
		884	const_eio (MCL_CURRENT)
		885
		886	const_eio (MS_ASYNC)
		887	const_eio (MS_INVALIDATE)
		888	const_eio (MS_SYNC)
		889
		890	const_eio (MT_MODIFY)
		891
		892	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		893	const_eio (SYNC_FILE_RANGE_WRITE)
		894	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		895
		896	const_eio (READDIR_DENTS)
		897	const_eio (READDIR_DIRS_FIRST)
		898	const_eio (READDIR_STAT_ORDER)
		899	const_eio (READDIR_FOUND_UNKNOWN)
		900
		901	const_eio (DT_UNKNOWN)
		902	const_eio (DT_FIFO)
		903	const_eio (DT_CHR)
		904	const_eio (DT_DIR)
		905	const_eio (DT_BLK)
		906	const_eio (DT_REG)
		907	const_eio (DT_LNK)
		908	const_eio (DT_SOCK)
		909	const_eio (DT_WHT)
		910	};
		911
472	stash = gv_stashpv ("IO::AIO", 1);	912	aio_stash = gv_stashpv ("IO::AIO" , 1);
		913	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		914	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
473		915
474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	916	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	917	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
479	#ifdef _WIN32
480	X_MUTEX_CHECK (wrklock);
481	X_MUTEX_CHECK (reslock);
482	X_MUTEX_CHECK (reqlock);
483	X_MUTEX_CHECK (reqwait);
484	X_MUTEX_CHECK (preadwritelock);
485	X_MUTEX_CHECK (readdirlock);
486		918
487	X_COND_CHECK (reqwait);	919	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
488	#else
489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
490	#endif
491		920
492	create_respipe ();	921	create_respipe ();
493		922
494	if (eio_init (want_poll, done_poll) < 0)	923	if (eio_init (want_poll, done_poll) < 0)
495	croak ("IO::AIO: unable to initialise eio library");	924	croak ("IO::AIO: unable to initialise eio library");
496		925
497	/* atfork child called in fifo order, so before eio's handler */	926	/* atfork child called in fifo order, so before eio's handler */
498	X_THREAD_ATFORK (0, 0, atfork_child);	927	X_THREAD_ATFORK (0, 0, atfork_child);
499	}	928	}
500		929
501	void	930	void
502	max_poll_reqs (int nreqs)	931	max_poll_reqs (unsigned int nreqs)
503	PROTOTYPE: $	932	PROTOTYPE: $
504	CODE:	933	CODE:
505	eio_set_max_poll_reqs (nreqs);	934	eio_set_max_poll_reqs (nreqs);
506		935
507	void	936	void
…		…
509	PROTOTYPE: $	938	PROTOTYPE: $
510	CODE:	939	CODE:
511	eio_set_max_poll_time (nseconds);	940	eio_set_max_poll_time (nseconds);
512		941
513	void	942	void
514	min_parallel (int nthreads)	943	min_parallel (unsigned int nthreads)
515	PROTOTYPE: $	944	PROTOTYPE: $
516	CODE:	945	CODE:
517	eio_set_min_parallel (nthreads);	946	eio_set_min_parallel (nthreads);
518		947
519	void	948	void
520	max_parallel (int nthreads)	949	max_parallel (unsigned int nthreads)
521	PROTOTYPE: $	950	PROTOTYPE: $
522	CODE:	951	CODE:
523	eio_set_max_parallel (nthreads);	952	eio_set_max_parallel (nthreads);
524		953
525	void	954	void
526	max_idle (int nthreads)	955	max_idle (unsigned int nthreads)
527	PROTOTYPE: $	956	PROTOTYPE: $
528	CODE:	957	CODE:
529	eio_set_max_idle (nthreads);	958	eio_set_max_idle (nthreads);
530		959
531	void	960	void
		961	idle_timeout (unsigned int seconds)
		962	PROTOTYPE: $
		963	CODE:
		964	eio_set_idle_timeout (seconds);
		965
		966	void
532	max_outstanding (int maxreqs)	967	max_outstanding (unsigned int maxreqs)
533	PROTOTYPE: $	968	PROTOTYPE: $
534	CODE:	969	CODE:
535	max_outstanding = maxreqs;	970	max_outstanding = maxreqs;
536		971
537	void	972	void
538	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	973	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $$$;$
540	PPCODE:	974	PPCODE:
541	{	975	{
542	dREQ;	976	dREQ;
543		977
544	req->type = EIO_OPEN;	978	req->type = EIO_OPEN;
…		…
550	REQ_SEND;	984	REQ_SEND;
551	}	985	}
552		986
553	void	987	void
554	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	988	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
555	PROTOTYPE: $;$
556	ALIAS:	989	ALIAS:
557	aio_fsync = EIO_FSYNC	990	aio_fsync = EIO_FSYNC
558	aio_fdatasync = EIO_FDATASYNC	991	aio_fdatasync = EIO_FDATASYNC
559	PPCODE:	992	PPCODE:
560	{	993	{
		994	int fd = s_fileno_croak (fh, 0);
561	dREQ;	995	dREQ;
562		996
563	req->type = ix;	997	req->type = ix;
564	req->sv1 = newSVsv (fh);	998	req->sv1 = newSVsv (fh);
565	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	999	req->int1 = fd;
566		1000
567	REQ_SEND (req);	1001	REQ_SEND (req);
568	}	1002	}
569		1003
570	void	1004	void
		1005	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1006	PPCODE:
		1007	{
		1008	int fd = s_fileno_croak (fh, 0);
		1009	dREQ;
		1010
		1011	req->type = EIO_SYNC_FILE_RANGE;
		1012	req->sv1 = newSVsv (fh);
		1013	req->int1 = fd;
		1014	req->offs = offset;
		1015	req->size = nbytes;
		1016	req->int2 = flags;
		1017
		1018	REQ_SEND (req);
		1019	}
		1020
		1021	void
571	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1022	aio_close (SV *fh, SV *callback=&PL_sv_undef)
572	PROTOTYPE: $;$
573	PPCODE:	1023	PPCODE:
574	{	1024	{
575	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1025	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		1026	int fd = s_fileno_croak (fh, 0);
576	dREQ;	1027	dREQ;
577		1028
578	if (close_pipe < 0)	1029	if (close_pipe < 0)
579	{	1030	{
580	int pipefd [2];	1031	int pipefd [2];
…		…
588	}	1039	}
589		1040
590	req->type = EIO_DUP2;	1041	req->type = EIO_DUP2;
591	req->int1 = close_pipe;	1042	req->int1 = close_pipe;
592	req->sv2 = newSVsv (fh);	1043	req->sv2 = newSVsv (fh);
593	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1044	req->int2 = fd;
594		1045
595	REQ_SEND (req);	1046	REQ_SEND (req);
596	}	1047	}
597		1048
598	void	1049	void
599	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1050	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
600	ALIAS:	1051	ALIAS:
601	aio_read = EIO_READ	1052	aio_read = EIO_READ
602	aio_write = EIO_WRITE	1053	aio_write = EIO_WRITE
603	PROTOTYPE: $$$$$;$
604	PPCODE:	1054	PPCODE:
605	{	1055	{
606	STRLEN svlen;	1056	STRLEN svlen;
		1057	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607	char *svptr = SvPVbyte (data, svlen);	1058	char *svptr = SvPVbyte (data, svlen);
608	UV len = SvUV (length);	1059	UV len = SvUV (length);
609
610	SvUPGRADE (data, SVt_PV);
611	SvPOK_on (data);
612		1060
613	if (dataoffset < 0)	1061	if (dataoffset < 0)
614	dataoffset += svlen;	1062	dataoffset += svlen;
615		1063
616	if (dataoffset < 0 || dataoffset > svlen)	1064	if (dataoffset < 0 || dataoffset > svlen)
…		…
622	if (!SvOK (length) || len + dataoffset > svlen)	1070	if (!SvOK (length) || len + dataoffset > svlen)
623	len = svlen - dataoffset;	1071	len = svlen - dataoffset;
624	}	1072	}
625	else	1073	else
626	{	1074	{
627	/* read: grow scalar as necessary */	1075	/* read: check type and grow scalar as necessary */
		1076	SvUPGRADE (data, SVt_PV);
628	svptr = SvGROW (data, len + dataoffset + 1);	1077	svptr = SvGROW (data, len + dataoffset + 1);
629	}	1078	}
630		1079
631	if (len < 0)
632	croak ("length must not be negative");
633
634	{	1080	{
635	dREQ;	1081	dREQ;
636		1082
637	req->type = ix;	1083	req->type = ix;
638	req->sv1 = newSVsv (fh);	1084	req->sv1 = newSVsv (fh);
639	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1085	req->int1 = fd;
640	: IoOFP (sv_2io (fh)));
641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1086	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642	req->size = len;	1087	req->size = len;
643	req->sv2 = SvREFCNT_inc (data);	1088	req->sv2 = SvREFCNT_inc (data);
644	req->ptr2 = (char *)svptr + dataoffset;	1089	req->ptr2 = (char *)svptr + dataoffset;
645	req->stroffset = dataoffset;	1090	req->stroffset = dataoffset;
…		…
654	}	1099	}
655	}	1100	}
656		1101
657	void	1102	void
658	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1103	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
659	PROTOTYPE: $$;$	1104	ALIAS:
		1105	aio_readlink = EIO_READLINK
		1106	aio_realpath = EIO_REALPATH
660	PPCODE:	1107	PPCODE:
661	{	1108	{
662	SV *data;	1109	SV *data;
663	dREQ;	1110	dREQ;
664		1111
665	req->type = EIO_READLINK;	1112	req->type = ix;
666	req->sv1 = newSVsv (path);	1113	req->sv1 = newSVsv (path);
667	req->ptr1 = SvPVbyte_nolen (req->sv1);	1114	req->ptr1 = SvPVbyte_nolen (req->sv1);
668		1115
669	REQ_SEND;	1116	REQ_SEND;
670	}	1117	}
671		1118
672	void	1119	void
673	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1120	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
674	PROTOTYPE: $$$$;$
675	PPCODE:	1121	PPCODE:
676	{	1122	{
		1123	int ifd = s_fileno_croak (in_fh , 0);
		1124	int ofd = s_fileno_croak (out_fh, 1);
677	dREQ;	1125	dREQ;
678		1126
679	req->type = EIO_SENDFILE;	1127	req->type = EIO_SENDFILE;
680	req->sv1 = newSVsv (out_fh);	1128	req->sv1 = newSVsv (out_fh);
681	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1129	req->int1 = ofd;
682	req->sv2 = newSVsv (in_fh);	1130	req->sv2 = newSVsv (in_fh);
683	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1131	req->int2 = ifd;
684	req->offs = SvVAL64 (in_offset);	1132	req->offs = in_offset;
685	req->size = length;	1133	req->size = length;
686		1134
687	REQ_SEND;	1135	REQ_SEND;
688	}	1136	}
689		1137
690	void	1138	void
691	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1139	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
692	PROTOTYPE: $$$;$
693	PPCODE:	1140	PPCODE:
694	{	1141	{
		1142	int fd = s_fileno_croak (fh, 0);
695	dREQ;	1143	dREQ;
696		1144
697	req->type = EIO_READAHEAD;	1145	req->type = EIO_READAHEAD;
698	req->sv1 = newSVsv (fh);	1146	req->sv1 = newSVsv (fh);
699	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1147	req->int1 = fd;
700	req->offs = SvVAL64 (offset);	1148	req->offs = offset;
701	req->size = length;	1149	req->size = length;
702		1150
703	REQ_SEND;	1151	REQ_SEND;
704	}	1152	}
705		1153
706	void	1154	void
707	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1155	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
708	ALIAS:	1156	ALIAS:
709	aio_stat = EIO_STAT	1157	aio_stat = EIO_STAT
710	aio_lstat = EIO_LSTAT	1158	aio_lstat = EIO_LSTAT
		1159	aio_statvfs = EIO_STATVFS
711	PPCODE:	1160	PPCODE:
712	{	1161	{
713	dREQ;	1162	dREQ;
714		1163
715	req->sv1 = newSVsv (fh_or_path);	1164	req->sv1 = newSVsv (fh_or_path);
…		…
719	req->type = ix;	1168	req->type = ix;
720	req->ptr1 = SvPVbyte_nolen (req->sv1);	1169	req->ptr1 = SvPVbyte_nolen (req->sv1);
721	}	1170	}
722	else	1171	else
723	{	1172	{
724	req->type = EIO_FSTAT;	1173	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1174	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726	}	1175	}
727		1176
728	REQ_SEND;	1177	REQ_SEND;
729	}	1178	}
		1179
		1180	UV
		1181	major (UV dev)
		1182	ALIAS:
		1183	minor = 1
		1184	CODE:
		1185	RETVAL = ix ? major (dev) : minor (dev);
		1186	OUTPUT:
		1187	RETVAL
		1188
		1189	UV
		1190	makedev (UV maj, UV min)
		1191	CODE:
		1192	RETVAL = makedev (maj, min);
		1193	OUTPUT:
		1194	RETVAL
730		1195
731	void	1196	void
732	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1197	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
733	PPCODE:	1198	PPCODE:
734	{	1199	{
…		…
824		1289
825	REQ_SEND;	1290	REQ_SEND;
826	}	1291	}
827		1292
828	void	1293	void
		1294	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1295	PPCODE:
		1296	{
		1297	dREQ;
		1298
		1299	req->type = EIO_READDIR;
		1300	req->sv1 = newSVsv (pathname);
		1301	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1302	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1303
		1304	if (flags & EIO_READDIR_DENTS)
		1305	req->int1 |= EIO_READDIR_CUSTOM2;
		1306
		1307	REQ_SEND;
		1308	}
		1309
		1310	void
829	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1311	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
830	ALIAS:	1312	ALIAS:
831	aio_unlink = EIO_UNLINK	1313	aio_unlink = EIO_UNLINK
832	aio_rmdir = EIO_RMDIR	1314	aio_rmdir = EIO_RMDIR
833	aio_readdir = EIO_READDIR	1315	aio_readdir = EIO_READDIR
…		…
875		1357
876	REQ_SEND;	1358	REQ_SEND;
877	}	1359	}
878		1360
879	void	1361	void
		1362	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1363	ALIAS:
		1364	aio_mtouch = EIO_MTOUCH
		1365	aio_msync = EIO_MSYNC
		1366	PPCODE:
		1367	{
		1368	STRLEN svlen;
		1369	char *svptr = SvPVbyte (data, svlen);
		1370	UV len = SvUV (length);
		1371
		1372	if (offset < 0)
		1373	offset += svlen;
		1374
		1375	if (offset < 0 || offset > svlen)
		1376	croak ("offset outside of scalar");
		1377
		1378	if (!SvOK (length) || len + offset > svlen)
		1379	len = svlen - offset;
		1380
		1381	{
		1382	dREQ;
		1383
		1384	req->type = ix;
		1385	req->sv2 = SvREFCNT_inc (data);
		1386	req->ptr2 = (char *)svptr + offset;
		1387	req->size = len;
		1388	req->int1 = flags;
		1389
		1390	REQ_SEND;
		1391	}
		1392	}
		1393
		1394	void
		1395	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1396	PPCODE:
		1397	{
		1398	STRLEN svlen;
		1399	char *svptr = SvPVbyte (data, svlen);
		1400	UV len = SvUV (length);
		1401
		1402	if (offset < 0)
		1403	offset += svlen;
		1404
		1405	if (offset < 0 || offset > svlen)
		1406	croak ("offset outside of scalar");
		1407
		1408	if (!SvOK (length) || len + offset > svlen)
		1409	len = svlen - offset;
		1410
		1411	{
		1412	dREQ;
		1413
		1414	req->type = EIO_MLOCK;
		1415	req->sv2 = SvREFCNT_inc (data);
		1416	req->ptr2 = (char *)svptr + offset;
		1417	req->size = len;
		1418
		1419	REQ_SEND;
		1420	}
		1421	}
		1422
		1423	void
		1424	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1425	PPCODE:
		1426	{
		1427	dREQ;
		1428
		1429	req->type = EIO_MLOCKALL;
		1430	req->int1 = flags;
		1431
		1432	REQ_SEND;
		1433	}
		1434
		1435	void
880	aio_busy (double delay, SV *callback=&PL_sv_undef)	1436	aio_busy (double delay, SV *callback=&PL_sv_undef)
881	PPCODE:	1437	PPCODE:
882	{	1438	{
883	dREQ;	1439	dREQ;
884		1440
…		…
888	REQ_SEND;	1444	REQ_SEND;
889	}	1445	}
890		1446
891	void	1447	void
892	aio_group (SV *callback=&PL_sv_undef)	1448	aio_group (SV *callback=&PL_sv_undef)
893	PROTOTYPE: ;$
894	PPCODE:	1449	PPCODE:
895	{	1450	{
896	dREQ;	1451	dREQ;
897		1452
898	req->type = EIO_GROUP;	1453	req->type = EIO_GROUP;
899		1454
900	eio_submit (req);	1455	req_submit (req);
901	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1456	XPUSHs (req_sv (req, aio_grp_stash));
902	}	1457	}
903		1458
904	void	1459	void
905	aio_nop (SV *callback=&PL_sv_undef)	1460	aio_nop (SV *callback=&PL_sv_undef)
906	ALIAS:	1461	ALIAS:
…		…
915	REQ_SEND;	1470	REQ_SEND;
916	}	1471	}
917		1472
918	int	1473	int
919	aioreq_pri (int pri = 0)	1474	aioreq_pri (int pri = 0)
920	PROTOTYPE: ;$
921	CODE:	1475	CODE:
922	RETVAL = next_pri;	1476	RETVAL = next_pri;
923	if (items > 0)	1477	if (items > 0)
924	{	1478	{
925	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1479	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
937	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1491	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938	next_pri = nice;	1492	next_pri = nice;
939		1493
940	void	1494	void
941	flush ()	1495	flush ()
942	PROTOTYPE:
943	CODE:	1496	CODE:
944	while (eio_nreqs ())	1497	while (eio_nreqs ())
945	{	1498	{
946	poll_wait ();	1499	poll_wait ();
947	poll_cb ();	1500	poll_cb ();
948	}	1501	}
949		1502
950	int	1503	int
951	poll()	1504	poll ()
952	PROTOTYPE:
953	CODE:	1505	CODE:
954	poll_wait ();	1506	poll_wait ();
955	RETVAL = poll_cb ();	1507	RETVAL = poll_cb ();
956	OUTPUT:	1508	OUTPUT:
957	RETVAL	1509	RETVAL
958		1510
959	int	1511	int
960	poll_fileno()	1512	poll_fileno ()
961	PROTOTYPE:
962	CODE:	1513	CODE:
963	RETVAL = respipe [0];	1514	RETVAL = s_epipe_fd (&respipe);
964	OUTPUT:	1515	OUTPUT:
965	RETVAL	1516	RETVAL
966		1517
967	int	1518	int
968	poll_cb(...)	1519	poll_cb (...)
969	PROTOTYPE:	1520	PROTOTYPE:
970	CODE:	1521	CODE:
971	RETVAL = poll_cb ();	1522	RETVAL = poll_cb ();
972	OUTPUT:	1523	OUTPUT:
973	RETVAL	1524	RETVAL
974		1525
975	void	1526	void
976	poll_wait()	1527	poll_wait ()
977	PROTOTYPE:
978	CODE:	1528	CODE:
979	poll_wait ();	1529	poll_wait ();
980		1530
981	int	1531	int
982	nreqs()	1532	nreqs ()
983	PROTOTYPE:
984	CODE:	1533	CODE:
985	RETVAL = eio_nreqs ();	1534	RETVAL = eio_nreqs ();
986	OUTPUT:	1535	OUTPUT:
987	RETVAL	1536	RETVAL
988		1537
989	int	1538	int
990	nready()	1539	nready ()
991	PROTOTYPE:
992	CODE:	1540	CODE:
993	RETVAL = eio_nready ();	1541	RETVAL = eio_nready ();
994	OUTPUT:	1542	OUTPUT:
995	RETVAL	1543	RETVAL
996		1544
997	int	1545	int
998	npending()	1546	npending ()
999	PROTOTYPE:
1000	CODE:	1547	CODE:
1001	RETVAL = eio_npending ();	1548	RETVAL = eio_npending ();
1002	OUTPUT:	1549	OUTPUT:
1003	RETVAL	1550	RETVAL
1004		1551
1005	int	1552	int
1006	nthreads()	1553	nthreads ()
1007	PROTOTYPE:
1008	CODE:	1554	CODE:
1009	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1555	RETVAL = eio_nthreads ();
1010	RETVAL = started;
1011	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012	OUTPUT:	1556	OUTPUT:
1013	RETVAL	1557	RETVAL
1014		1558
		1559	int
		1560	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1561	CODE:
		1562	RETVAL = posix_fadvise (fh, offset, length, advice);
		1563	OUTPUT:
		1564	RETVAL
		1565
		1566	ssize_t
		1567	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1568	CODE:
		1569	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1570	OUTPUT:
		1571	RETVAL
		1572
		1573	void
		1574	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1575	PPCODE:
		1576	sv_unmagic (scalar, MMAP_MAGIC);
		1577	{
		1578	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1579	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1580	if (addr == (void *)-1)
		1581	XSRETURN_NO;
		1582
		1583	sv_force_normal (scalar);
		1584
		1585	/* we store the length in mg_obj, as namlen is I32 :/ */
		1586	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1587	->mg_obj = (SV *)length;
		1588
		1589	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1590
		1591	if (!(prot & PROT_WRITE))
		1592	SvREADONLY_on (scalar);
		1593
		1594	if (SvLEN (scalar))
		1595	Safefree (SvPVX (scalar));
		1596
		1597	SvPVX (scalar) = (char *)addr;
		1598	SvCUR_set (scalar, length);
		1599	SvLEN_set (scalar, 0);
		1600	SvPOK_only (scalar);
		1601
		1602	XSRETURN_YES;
		1603	}
		1604
		1605	void
		1606	munmap (SV *scalar)
		1607	CODE:
		1608	sv_unmagic (scalar, MMAP_MAGIC);
		1609
		1610	int
		1611	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1612	ALIAS:
		1613	mprotect = 1
		1614	CODE:
		1615	{
		1616	STRLEN svlen;
		1617	void *addr = SvPVbyte (scalar, svlen);
		1618	size_t len = SvUV (length);
		1619
		1620	if (offset < 0)
		1621	offset += svlen;
		1622
		1623	if (offset < 0 || offset > svlen)
		1624	croak ("offset outside of scalar");
		1625
		1626	if (!SvOK (length) || len + offset > svlen)
		1627	len = svlen - offset;
		1628
		1629	addr = (void *)(((intptr_t)addr) + offset);
		1630	eio_page_align (&addr, &len);
		1631
		1632	switch (ix)
		1633	{
		1634	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1635	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1636	}
		1637	}
		1638	OUTPUT:
		1639	RETVAL
		1640
		1641	int
		1642	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1643	CODE:
		1644	{
		1645	STRLEN svlen;
		1646	void *addr = SvPVbyte (scalar, svlen);
		1647	size_t len = SvUV (length);
		1648
		1649	if (offset < 0)
		1650	offset += svlen;
		1651
		1652	if (offset < 0 || offset > svlen)
		1653	croak ("offset outside of scalar");
		1654
		1655	if (!SvOK (length) || len + offset > svlen)
		1656	len = svlen - offset;
		1657
		1658	addr = (void *)(((intptr_t)addr) + offset);
		1659	eio_page_align (&addr, &len);
		1660	#if _POSIX_MEMLOCK_RANGE
		1661	RETVAL = munlock (addr, len);
		1662	#else
		1663	RETVAL = ((errno = ENOSYS), -1);
		1664	#endif
		1665	}
		1666	OUTPUT:
		1667	RETVAL
		1668
		1669	int
		1670	munlockall ()
		1671	CODE:
		1672	#if _POSIX_MEMLOCK
		1673	munlockall ();
		1674	#else
		1675	RETVAL = -1;
		1676	errno = ENOSYS;
		1677	#endif
		1678	OUTPUT:
		1679	RETVAL
		1680
1015	void _on_next_submit (SV *cb)	1681	void _on_next_submit (SV *cb)
1016	CODE:	1682	CODE:
1017	SvREFCNT_dec (on_next_submit);	1683	SvREFCNT_dec (on_next_submit);
1018	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1684	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1019		1685
…		…
1026	CODE:	1692	CODE:
1027	eio_cancel (req);	1693	eio_cancel (req);
1028		1694
1029	void	1695	void
1030	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1696	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031	CODE:	1697	PPCODE:
		1698	{
		1699	if (GIMME_V != G_VOID)
		1700	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1701
		1702	if (items > 1)
		1703	{
		1704	SV *cb_cv =get_cb (callback);
		1705
1032	SvREFCNT_dec (req->callback);	1706	SvREFCNT_dec (req->callback);
1033	req->callback = newSVsv (callback);	1707	req->callback = SvREFCNT_inc (cb_cv);
		1708	}
		1709	}
1034		1710
1035	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1711	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036		1712
1037	void	1713	void
1038	add (aio_req grp, ...)	1714	add (aio_req grp, ...)
…		…
1070	AV *av;	1746	AV *av;
1071		1747
1072	grp->errorno = errno;	1748	grp->errorno = errno;
1073		1749
1074	av = newAV ();	1750	av = newAV ();
		1751	av_extend (av, items - 1);
1075		1752
1076	for (i = 1; i < items; ++i )	1753	for (i = 1; i < items; ++i )
1077	av_push (av, newSVsv (ST (i)));	1754	av_push (av, newSVsv (ST (i)));
1078		1755
1079	SvREFCNT_dec (grp->sv1);	1756	SvREFCNT_dec (grp->sv1);
…		…
1093	void	1770	void
1094	feed (aio_req grp, SV *callback=&PL_sv_undef)	1771	feed (aio_req grp, SV *callback=&PL_sv_undef)
1095	CODE:	1772	CODE:
1096	{	1773	{
1097	SvREFCNT_dec (grp->sv2);	1774	SvREFCNT_dec (grp->sv2);
1098	grp->sv2 = newSVsv (callback);	1775	grp->sv2 = newSVsv (callback);
		1776	grp->feed = aio_grp_feed;
1099		1777
1100	if (grp->int2 <= 0)	1778	if (grp->int2 <= 0)
1101	grp->int2 = 2;	1779	grp->int2 = 2;
1102		1780
1103	eio_grp_limit (grp, grp->int2);	1781	eio_grp_limit (grp, grp->int2);

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