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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.117 by root, Sat May 10 20:02:09 2008 UTC vs.
Revision 1.181 by root, Tue Feb 15 03:21:41 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
		24
		25	/* perl namespace pollution */
		26	#undef VERSION
17		27
18	#ifdef _WIN32	28	#ifdef _WIN32
19		29
20	# define EIO_STRUCT_DIRENT Direntry_t	30	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc	31	# undef malloc
…		…
62	# include <signal.h>	72	# include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent	73	# define EIO_STRUCT_DIRENT struct dirent
64		74
65	#endif	75	#endif
66		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
67	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
68		84
69	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
70	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
71	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
72	#else	90	#else
		91	# define VAL64 NV
73	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
74	#endif	94	#endif
75		95
76	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
77	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 */
78		112
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		114
82	#define EIO_COMMON \	115	#define EIO_REQ_MEMBERS \
83	SV *callback; \	116	SV *callback; \
84	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
85	STRLEN stroffset; \	118	STRLEN stroffset; \
86	SV *self	119	SV *self;
87		120
		121	#define EIO_NO_WRAPPERS 1
		122
		123	#include "libeio/config.h"
88	#include "libeio/eio.h"	124	#include "libeio/eio.h"
		125
		126	#ifndef POSIX_FADV_NORMAL
		127	# define POSIX_FADV_NORMAL 0
		128	#endif
		129	#ifndef POSIX_FADV_SEQUENTIAL
		130	# define POSIX_FADV_SEQUENTIAL 0
		131	#endif
		132	#ifndef POSIX_FADV_RANDOM
		133	# define POSIX_FADV_RANDOM 0
		134	#endif
		135	#ifndef POSIX_FADV_NOREUSE
		136	# define POSIX_FADV_NOREUSE 0
		137	#endif
		138	#ifndef POSIX_FADV_WILLNEED
		139	# define POSIX_FADV_WILLNEED 0
		140	#endif
		141	#ifndef POSIX_FADV_DONTNEED
		142	# define POSIX_FADV_DONTNEED 0
		143	#endif
		144
		145	#if !HAVE_POSIX_FADVISE
		146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		147	#endif
		148
		149	#ifndef POSIX_MADV_NORMAL
		150	# define POSIX_MADV_NORMAL 0
		151	#endif
		152	#ifndef POSIX_MADV_SEQUENTIAL
		153	# define POSIX_MADV_SEQUENTIAL 0
		154	#endif
		155	#ifndef POSIX_MADV_RANDOM
		156	# define POSIX_MADV_RANDOM 0
		157	#endif
		158	#ifndef POSIX_MADV_WILLNEED
		159	# define POSIX_MADV_WILLNEED 0
		160	#endif
		161	#ifndef POSIX_MADV_DONTNEED
		162	# define POSIX_MADV_DONTNEED 0
		163	#endif
		164
		165	#if !HAVE_POSIX_MADVISE
		166	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		167	#endif
		168
		169	#ifndef PROT_NONE
		170	# define PROT_NONE 0
		171	#endif
		172	#ifndef PROT_READ
		173	# define PROT_READ 0
		174	#endif
		175	#ifndef PROT_WRITE
		176	# define PROT_READ 0
		177	#endif
		178	#ifndef PROT_EXEC
		179	# define PROT_EXEC 0
		180	#endif
		181
		182	#ifndef ST_NODEV
		183	# define ST_NODEV 0
		184	#endif
		185	#ifndef ST_NOEXEC
		186	# define ST_NOEXEC 0
		187	#endif
		188	#ifndef ST_SYNCHRONOUS
		189	# define ST_SYNCHRONOUS 0
		190	#endif
		191	#ifndef ST_MANDLOCK
		192	# define ST_MANDLOCK 0
		193	#endif
		194	#ifndef ST_WRITE
		195	# define ST_WRITE 0
		196	#endif
		197	#ifndef ST_APPEND
		198	# define ST_APPEND 0
		199	#endif
		200	#ifndef ST_IMMUTABLE
		201	# define ST_IMMUTABLE 0
		202	#endif
		203	#ifndef ST_NOATIME
		204	# define ST_NOATIME 0
		205	#endif
		206	#ifndef ST_NODIRATIME
		207	# define ST_NODIRATIME 0
		208	#endif
		209	#ifndef ST_RELATIME
		210	# define ST_RELATIME 0
		211	#endif
		212
		213	#ifndef S_IFIFO
		214	# define S_IFIFO 0
		215	#endif
		216	#ifndef S_IFCHR
		217	# define S_IFCHR 0
		218	#endif
		219	#ifndef S_IFBLK
		220	# define S_IFBLK 0
		221	#endif
		222	#ifndef S_IFLNK
		223	# define S_IFLNK 0
		224	#endif
		225	#ifndef S_IFREG
		226	# define S_IFREG 0
		227	#endif
		228	#ifndef S_IFDIR
		229	# define S_IFDIR 0
		230	#endif
		231	#ifndef S_IFWHT
		232	# define S_IFWHT 0
		233	#endif
		234	#ifndef S_IFSOCK
		235	# define S_IFSOCK 0
		236	#endif
		237
		238	#ifndef MAP_ANONYMOUS
		239	# ifdef MAP_ANON
		240	# define MAP_ANONYMOUS MAP_ANON
		241	# else
		242	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		243	# endif
		244	#endif
		245	#ifndef MAP_HUGETLB
		246	# define MAP_HUGETLB 0
		247	#endif
		248	#ifndef MAP_LOCKED
		249	# define MAP_LOCKED 0
		250	#endif
		251	#ifndef MAP_NORESERVE
		252	# define MAP_NORESERVE 0
		253	#endif
		254	#ifndef MAP_POPULATE
		255	# define MAP_POPULATE 0
		256	#endif
		257	#ifndef MAP_NONBLOCK
		258	# define MAP_NONBLOCK 0
		259	#endif
		260
		261	#ifndef makedev
		262	# define makedev(maj,min) (((maj) << 8) | (min))
		263	#endif
		264	#ifndef major
		265	# define major(dev) ((dev) >> 8)
		266	#endif
		267	#ifndef minor
		268	# define minor(dev) ((dev) & 0xff)
		269	#endif
		270
		271	#ifndef PAGESIZE
		272	# define PAGESIZE sysconf (_SC_PAGESIZE)
		273	#endif
89		274
90	static int req_invoke (eio_req *req);	275	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	276	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	277	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	278	#define EIO_DESTROY(req) req_destroy (req)
96		279
97	enum {	280	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	281	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
102		285
103	typedef eio_req *aio_req;	286	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	287	typedef eio_req *aio_req_ornot;
105		288
106	static SV *on_next_submit;	289	static SV *on_next_submit;
107	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	290	static int next_pri = EIO_PRI_DEFAULT;
108	static int max_outstanding;	291	static int max_outstanding;
109		292
110	static int respipe_osf [2], respipe [2] = { -1, -1 };	293	static s_epipe respipe;
111		294
112	static void req_destroy (aio_req req);	295	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	296	static void req_cancel (aio_req req);
114		297
115	static void want_poll (void)	298	static void want_poll (void)
116	{	299	{
117	/* write a dummy byte to the pipe so fh becomes ready */	300	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	301	s_epipe_signal (&respipe);
119	}	302	}
120		303
121	static void done_poll (void)	304	static void done_poll (void)
122	{	305	{
123	/* read any signals sent by the worker threads */	306	/* read any signals sent by the worker threads */
124	char buf [4];	307	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	308	}
128		309
129	/* must be called at most once */	310	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	311	static SV *req_sv (aio_req req, HV *stash)
131	{	312	{
132	if (!req->self)	313	if (!req->self)
133	{	314	{
134	req->self = (SV *)newHV ();	315	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	316	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	317	}
137		318
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	319	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	320	}
140		321
141	static aio_req SvAIO_REQ (SV *sv)	322	static aio_req SvAIO_REQ (SV *sv)
142	{	323	{
143	MAGIC *mg;	324	MAGIC *mg;
144		325
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	326	if (!SvROK (sv)
		327	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		328	&& SvSTASH (SvRV (sv)) != aio_req_stash
		329	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	330	croak ("object of class IO::AIO::REQ expected");
147		331
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	332	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		333
150	return mg ? (aio_req)mg->mg_ptr : 0;	334	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	335	}
…		…
157	dSP;	341	dSP;
158		342
159	ENTER;	343	ENTER;
160	SAVETMPS;	344	SAVETMPS;
161	PUSHMARK (SP);	345	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	346	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	347	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	348	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	349	SPAGAIN;
166	FREETMPS;	350	FREETMPS;
167	LEAVE;	351	LEAVE;
…		…
170		354
171	static void req_submit (eio_req *req)	355	static void req_submit (eio_req *req)
172	{	356	{
173	eio_submit (req);	357	eio_submit (req);
174		358
175	if (on_next_submit)	359	if (expect_false (on_next_submit))
176	{	360	{
177	dSP;	361	dSP;
178	SV *cb = sv_2mortal (on_next_submit);	362	SV *cb = sv_2mortal (on_next_submit);
179		363
180	on_next_submit = 0;	364	on_next_submit = 0;
…		…
185	}	369	}
186	}	370	}
187		371
188	static int req_invoke (eio_req *req)	372	static int req_invoke (eio_req *req)
189	{	373	{
190	dSP;
191
192	if (req->flags & FLAG_SV2_RO_OFF)	374	if (req->flags & FLAG_SV2_RO_OFF)
193	SvREADONLY_off (req->sv2);	375	SvREADONLY_off (req->sv2);
194		376
195	if (!EIO_CANCELLED (req) && SvOK (req->callback))	377	if (!EIO_CANCELLED (req) && req->callback)
196	{	378	{
		379	dSP;
		380	static SV *sv_result_cache; /* caches the result integer SV */
		381	SV *sv_result;
		382
197	ENTER;	383	ENTER;
198	SAVETMPS;	384	SAVETMPS;
199	PUSHMARK (SP);	385	PUSHMARK (SP);
200	EXTEND (SP, 1);	386	EXTEND (SP, 1);
		387
		388	/* do not recreate the result IV from scratch each time */
		389	if (expect_true (sv_result_cache))
		390	{
		391	sv_result = sv_result_cache; sv_result_cache = 0;
		392	SvIV_set (sv_result, req->result);
		393	SvIOK_only (sv_result);
		394	}
		395	else
		396	{
		397	sv_result = newSViv (req->result);
		398	SvREADONLY_on (sv_result);
		399	}
201		400
202	switch (req->type)	401	switch (req->type)
203	{	402	{
204	case EIO_READDIR:	403	case EIO_READDIR:
205	{	404	{
206	SV *rv = &PL_sv_undef;	405	SV *rv = &PL_sv_undef;
207		406
208	if (req->result >= 0)	407	if (req->result >= 0)
209	{	408	{
210	int i;	409	int i;
211	char *buf = req->ptr2;	410	char *names = (char *)req->ptr2;
		411	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
212	AV *av = newAV ();	412	AV *av = newAV ();
213		413
214	av_extend (av, req->result - 1);	414	av_extend (av, req->result - 1);
215		415
216	for (i = 0; i < req->result; ++i)	416	for (i = 0; i < req->result; ++i)
217	{	417	{
218	SV *sv = newSVpv (buf, 0);	418	if (req->int1 & EIO_READDIR_DENTS)
		419	{
		420	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
219		421
		422	if (req->int1 & EIO_READDIR_CUSTOM2)
		423	{
		424	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		425	AV *avent = newAV ();
		426
		427	av_extend (avent, 2);
		428
		429	if (!sv_type [ent->type])
		430	{
		431	sv_type [ent->type] = newSViv (ent->type);
		432	SvREADONLY_on (sv_type [ent->type]);
		433	}
		434
		435	av_store (avent, 0, namesv);
		436	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		437	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		438
		439	av_store (av, i, newRV_noinc ((SV *)avent));
		440	}
		441	else
220	av_store (av, i, sv);	442	av_store (av, i, namesv);
		443
		444	++ent;
		445	}
		446	else
		447	{
		448	SV *name = newSVpv (names, 0);
		449	av_store (av, i, name);
221	buf += SvCUR (sv) + 1;	450	names += SvCUR (name) + 1;
		451	}
222	}	452	}
223		453
224	rv = sv_2mortal (newRV_noinc ((SV *)av));	454	rv = sv_2mortal (newRV_noinc ((SV *)av));
225	}	455	}
226		456
227	PUSHs (rv);	457	PUSHs (rv);
		458
		459	if (req->int1 & EIO_READDIR_CUSTOM1)
		460	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
228	}	461	}
229	break;	462	break;
230		463
231	case EIO_OPEN:	464	case EIO_OPEN:
232	{	465	{
…		…
238	GV *gv = (GV *)sv_newmortal ();	471	GV *gv = (GV *)sv_newmortal ();
239	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	472	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
240	char sym [64];	473	char sym [64];
241	int symlen;	474	int symlen;
242		475
243	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	476	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
244	gv_init (gv, stash, sym, symlen, 0);	477	gv_init (gv, aio_stash, sym, symlen, 0);
245		478
246	symlen = snprintf (	479	symlen = snprintf (
247	sym,	480	sym,
248	sizeof (sym),	481	sizeof (sym),
249	"%s&=%d",	482	"%s&=%d",
250	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	483	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
251	req->result	484	(int)req->result
252	);	485	);
253		486
254	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	487	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
255	fh = (SV *)gv;	488	fh = (SV *)gv;
256	}	489	}
257		490
258	PUSHs (fh);	491	PUSHs (fh);
259	}	492	}
		493	break;
		494
		495	case EIO_STATVFS:
		496	case EIO_FSTATVFS:
		497	{
		498	SV *rv = &PL_sv_undef;
		499
		500	if (req->result >= 0)
		501	{
		502	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		503	HV *hv = newHV ();
		504
		505	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		506
		507	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		508	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		509	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		510	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		511	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		512	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		513	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		514	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		515	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		516	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		517	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		518	}
		519
		520	PUSHs (rv);
		521	}
		522
260	break;	523	break;
261		524
262	case EIO_GROUP:	525	case EIO_GROUP:
263	req->int1 = 2; /* mark group as finished */	526	req->int1 = 2; /* mark group as finished */
264		527
…		…
277	case EIO_BUSY:	540	case EIO_BUSY:
278	break;	541	break;
279		542
280	case EIO_READLINK:	543	case EIO_READLINK:
281	if (req->result > 0)	544	if (req->result > 0)
282	{	545	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
283	SvCUR_set (req->sv2, req->result);
284	*SvEND (req->sv2) = 0;
285	PUSHs (req->sv2);
286	}
287	break;	546	break;
288		547
289	case EIO_STAT:	548	case EIO_STAT:
290	case EIO_LSTAT:	549	case EIO_LSTAT:
291	case EIO_FSTAT:	550	case EIO_FSTAT:
292	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	551	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
293	PL_laststatval = req->result;	552	PL_laststatval = req->result;
294	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	553	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
295	PUSHs (sv_2mortal (newSViv (req->result)));	554	PUSHs (sv_result);
296	break;	555	break;
297		556
298	case EIO_READ:	557	case EIO_READ:
		558	{
299	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	559	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
300	*SvEND (req->sv2) = 0;	560	*SvEND (req->sv2) = 0;
301	PUSHs (sv_2mortal (newSViv (req->result)));	561	SvPOK_only (req->sv2);
		562	SvSETMAGIC (req->sv2);
		563	PUSHs (sv_result);
		564	}
302	break;	565	break;
303		566
304	case EIO_DUP2:	567	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
305	if (req->result > 0)	568	if (req->result > 0)
306	req->result = 0;	569	SvIV_set (sv_result, 0);
307	/* FALLTHROUGH */	570	/* FALLTHROUGH */
308		571
309	default:	572	default:
310	PUSHs (sv_2mortal (newSViv (req->result)));	573	PUSHs (sv_result);
311	break;	574	break;
312	}	575	}
313		576
314	errno = req->errorno;	577	errno = req->errorno;
315		578
316	PUTBACK;	579	PUTBACK;
317	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	580	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
318	SPAGAIN;	581	SPAGAIN;
		582
		583	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		584	SvREFCNT_dec (sv_result);
		585	else
		586	sv_result_cache = sv_result;
319		587
320	FREETMPS;	588	FREETMPS;
321	LEAVE;	589	LEAVE;
322		590
323	PUTBACK;	591	PUTBACK;
…		…
352	grp->sv2 = 0;	620	grp->sv2 = 0;
353		621
354	eio_grp_cancel (grp);	622	eio_grp_cancel (grp);
355	}	623	}
356		624
357	#ifdef USE_SOCKETS_AS_HANDLES
358	# define TO_SOCKET(x) (win32_get_osfhandle (x))
359	#else
360	# define TO_SOCKET(x) (x)
361	#endif
362
363	static void	625	static void
364	create_respipe (void)	626	create_respipe (void)
365	{	627	{
366	int old_readfd = respipe [0];
367
368	if (respipe [1] >= 0)
369	respipe_close (TO_SOCKET (respipe [1]));
370
371	#ifdef _WIN32
372	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
373	#else
374	if (pipe (respipe))	628	if (s_epipe_renew (&respipe))
375	#endif
376	croak ("unable to initialize result pipe");	629	croak ("IO::AIO: unable to initialize result pipe");
377
378	if (old_readfd >= 0)
379	{
380	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
381	croak ("unable to initialize result pipe(2)");
382
383	respipe_close (respipe [0]);
384	respipe [0] = old_readfd;
385	}
386
387	#ifdef _WIN32
388	int arg = 1;
389	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
390	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
391	#else
392	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
393	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
394	#endif
395	croak ("unable to initialize result pipe(3)");
396
397	respipe_osf [0] = TO_SOCKET (respipe [0]);
398	respipe_osf [1] = TO_SOCKET (respipe [1]);
399	}	630	}
400		631
401	static void poll_wait (void)	632	static void poll_wait (void)
402	{	633	{
403	fd_set rfd;
404
405	while (eio_nreqs ())	634	while (eio_nreqs ())
406	{	635	{
407	int size;	636	int size;
408		637
409	X_LOCK (reslock);	638	X_LOCK (reslock);
…		…
411	X_UNLOCK (reslock);	640	X_UNLOCK (reslock);
412		641
413	if (size)	642	if (size)
414	return;	643	return;
415		644
416	maybe_start_thread ();	645	etp_maybe_start_thread ();
417		646
418	FD_ZERO (&rfd);	647	s_epipe_wait (&respipe);
419	FD_SET (respipe [0], &rfd);
420
421	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
422	}	648	}
423	}	649	}
424		650
425	static int poll_cb (void)	651	static int poll_cb (void)
426	{	652	{
427	int res;	653	for (;;)
428
429	do
430	{	654	{
431	res = eio_poll ();	655	int res = eio_poll ();
432		656
433	if (res > 0)	657	if (res > 0)
434	croak (0);	658	croak (0);
		659
		660	if (!max_outstanding || max_outstanding > eio_nreqs ())
		661	return res;
		662
		663	poll_wait ();
435	}	664	}
436	while (max_outstanding && max_outstanding <= eio_nreqs ());
437
438	return res;
439	}	665	}
440		666
441	static void atfork_child (void)	667	static void atfork_child (void)
442	{	668	{
443	create_respipe ();	669	create_respipe ();
444	}	670	}
445		671
		672	/*****************************************************************************/
		673
		674	#if !_POSIX_MAPPED_FILES
		675	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		676	# define munmap(addr,length) (errno = ENOSYS, -1)
		677	#endif
		678
		679	#if !_POSIX_MEMORY_PROTECTION
		680	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		681	# define PROT_NONE 0
		682	# define PROT_WRITE 0
		683	# define MAP_PRIVATE 0
		684	# define MAP_SHARED 0
		685	# define MAP_FIXED 0
		686	#endif
		687
		688	#define MMAP_MAGIC PERL_MAGIC_ext
		689
		690	static int
		691	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		692	{
		693	int old_errno = errno;
		694	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		695	errno = old_errno;
		696
		697	mg->mg_obj = 0; /* just in case */
		698
		699	SvREADONLY_off (sv);
		700
		701	if (SvPVX (sv) != mg->mg_ptr)
		702	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		703
		704	SvCUR_set (sv, 0);
		705	SvPVX (sv) = 0;
		706	SvOK_off (sv);
		707
		708	return 0;
		709	}
		710
		711	static MGVTBL mmap_vtbl = {
		712	0, 0, 0, 0, mmap_free
		713	};
		714
		715	/*****************************************************************************/
		716
		717	static SV *
		718	get_cb (SV *cb_sv)
		719	{
		720	SvGETMAGIC (cb_sv);
		721	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		722	}
		723
446	#define dREQ \	724	#define dREQ \
		725	SV *cb_cv; \
447	aio_req req; \	726	aio_req req; \
448	int req_pri = next_pri; \	727	int req_pri = next_pri; \
449	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	728	next_pri = EIO_PRI_DEFAULT; \
450	\	729	\
451	if (SvOK (callback) && !SvROK (callback)) \	730	cb_cv = get_cb (callback); \
452	croak ("callback must be undef or of reference type"); \
453	\	731	\
454	Newz (0, req, 1, eio_req); \	732	Newz (0, req, 1, eio_req); \
455	if (!req) \	733	if (!req) \
456	croak ("out of memory during eio_req allocation"); \	734	croak ("out of memory during eio_req allocation"); \
457	\	735	\
458	req->callback = newSVsv (callback); \	736	req->callback = SvREFCNT_inc (cb_cv); \
459	req->pri = req_pri	737	req->pri = req_pri
460		738
461	#define REQ_SEND \	739	#define REQ_SEND \
		740	PUTBACK; \
462	req_submit (req); \	741	req_submit (req); \
		742	SPAGAIN; \
463	\	743	\
464	if (GIMME_V != G_VOID) \	744	if (GIMME_V != G_VOID) \
465	XPUSHs (req_sv (req, AIO_REQ_KLASS));	745	XPUSHs (req_sv (req, aio_req_stash));
466		746
467	MODULE = IO::AIO PACKAGE = IO::AIO	747	MODULE = IO::AIO PACKAGE = IO::AIO
468		748
469	PROTOTYPES: ENABLE	749	PROTOTYPES: ENABLE
470		750
471	BOOT:	751	BOOT:
472	{	752	{
		753	static const struct {
		754	const char *name;
		755	IV iv;
		756	} *civ, const_iv[] = {
		757	# define const_niv(name, value) { # name, (IV) value },
		758	# define const_iv(name) { # name, (IV) name },
		759	# define const_eio(name) { # name, (IV) EIO_ ## name },
		760	const_iv (EXDEV)
		761	const_iv (ENOSYS)
		762	const_iv (O_RDONLY)
		763	const_iv (O_WRONLY)
		764	const_iv (O_RDWR)
		765	const_iv (O_CREAT)
		766	const_iv (O_TRUNC)
		767	const_iv (O_EXCL)
		768	const_iv (O_APPEND)
		769
		770	const_iv (S_IFIFO)
		771	const_iv (S_IFCHR)
		772	const_iv (S_IFBLK)
		773	const_iv (S_IFLNK)
		774	const_iv (S_IFREG)
		775	const_iv (S_IFDIR)
		776	const_iv (S_IFWHT)
		777	const_iv (S_IFSOCK)
		778	const_iv (S_IFMT)
		779
		780	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		781	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		782	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		783	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		784	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		785	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		786
		787	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		788	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		789	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		790	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		791	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		792
		793	const_iv (ST_RDONLY)
		794	const_iv (ST_NOSUID)
		795	const_iv (ST_NODEV)
		796	const_iv (ST_NOEXEC)
		797	const_iv (ST_SYNCHRONOUS)
		798	const_iv (ST_MANDLOCK)
		799	const_iv (ST_WRITE)
		800	const_iv (ST_APPEND)
		801	const_iv (ST_IMMUTABLE)
		802	const_iv (ST_NOATIME)
		803	const_iv (ST_NODIRATIME)
		804	const_iv (ST_RELATIME)
		805
		806	const_iv (PROT_NONE)
		807	const_iv (PROT_EXEC)
		808	const_iv (PROT_READ)
		809	const_iv (PROT_WRITE)
		810
		811	/*const_iv (MAP_FIXED)*/
		812	const_iv (MAP_PRIVATE)
		813	const_iv (MAP_SHARED)
		814	const_iv (MAP_ANONYMOUS)
		815
		816	/* linuxish */
		817	const_iv (MAP_HUGETLB)
		818	const_iv (MAP_LOCKED)
		819	const_iv (MAP_NORESERVE)
		820	const_iv (MAP_POPULATE)
		821	const_iv (MAP_NONBLOCK)
		822
		823	const_eio (MCL_FUTURE)
		824	const_eio (MCL_CURRENT)
		825
		826	const_eio (MS_ASYNC)
		827	const_eio (MS_INVALIDATE)
		828	const_eio (MS_SYNC)
		829
		830	const_eio (MT_MODIFY)
		831
		832	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		833	const_eio (SYNC_FILE_RANGE_WRITE)
		834	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		835
		836	const_eio (READDIR_DENTS)
		837	const_eio (READDIR_DIRS_FIRST)
		838	const_eio (READDIR_STAT_ORDER)
		839	const_eio (READDIR_FOUND_UNKNOWN)
		840
		841	const_eio (DT_UNKNOWN)
		842	const_eio (DT_FIFO)
		843	const_eio (DT_CHR)
		844	const_eio (DT_DIR)
		845	const_eio (DT_BLK)
		846	const_eio (DT_REG)
		847	const_eio (DT_LNK)
		848	const_eio (DT_SOCK)
		849	const_eio (DT_WHT)
		850	};
		851
473	stash = gv_stashpv ("IO::AIO", 1);	852	aio_stash = gv_stashpv ("IO::AIO" , 1);
		853	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		854	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
474		855
475	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	856	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
476	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	857	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
477	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
478	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
479	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
480	#ifdef _WIN32
481	X_MUTEX_CHECK (wrklock);
482	X_MUTEX_CHECK (reslock);
483	X_MUTEX_CHECK (reqlock);
484	X_MUTEX_CHECK (reqwait);
485	X_MUTEX_CHECK (preadwritelock);
486	X_MUTEX_CHECK (readdirlock);
487		858
488	X_COND_CHECK (reqwait);	859	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
489	#else
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
491	#endif
492		860
493	create_respipe ();	861	create_respipe ();
494		862
495	if (eio_init (want_poll, done_poll) < 0)	863	if (eio_init (want_poll, done_poll) < 0)
496	croak ("IO::AIO: unable to initialise eio library");	864	croak ("IO::AIO: unable to initialise eio library");
497		865
498	/* atfork child called in fifo order, so before eio's handler */	866	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);	867	X_THREAD_ATFORK (0, 0, atfork_child);
500	}	868	}
501		869
502	void	870	void
503	max_poll_reqs (int nreqs)	871	max_poll_reqs (unsigned int nreqs)
504	PROTOTYPE: $	872	PROTOTYPE: $
505	CODE:	873	CODE:
506	eio_set_max_poll_reqs (nreqs);	874	eio_set_max_poll_reqs (nreqs);
507		875
508	void	876	void
…		…
510	PROTOTYPE: $	878	PROTOTYPE: $
511	CODE:	879	CODE:
512	eio_set_max_poll_time (nseconds);	880	eio_set_max_poll_time (nseconds);
513		881
514	void	882	void
515	min_parallel (int nthreads)	883	min_parallel (unsigned int nthreads)
516	PROTOTYPE: $	884	PROTOTYPE: $
517	CODE:	885	CODE:
518	eio_set_min_parallel (nthreads);	886	eio_set_min_parallel (nthreads);
519		887
520	void	888	void
521	max_parallel (int nthreads)	889	max_parallel (unsigned int nthreads)
522	PROTOTYPE: $	890	PROTOTYPE: $
523	CODE:	891	CODE:
524	eio_set_max_parallel (nthreads);	892	eio_set_max_parallel (nthreads);
525		893
526	void	894	void
527	max_idle (int nthreads)	895	max_idle (unsigned int nthreads)
528	PROTOTYPE: $	896	PROTOTYPE: $
529	CODE:	897	CODE:
530	eio_set_max_idle (nthreads);	898	eio_set_max_idle (nthreads);
531		899
532	void	900	void
		901	idle_timeout (unsigned int seconds)
		902	PROTOTYPE: $
		903	CODE:
		904	eio_set_idle_timeout (seconds);
		905
		906	void
533	max_outstanding (int maxreqs)	907	max_outstanding (unsigned int maxreqs)
534	PROTOTYPE: $	908	PROTOTYPE: $
535	CODE:	909	CODE:
536	max_outstanding = maxreqs;	910	max_outstanding = maxreqs;
537		911
538	void	912	void
539	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	913	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
540	PROTOTYPE: $$$;$
541	PPCODE:	914	PPCODE:
542	{	915	{
543	dREQ;	916	dREQ;
544		917
545	req->type = EIO_OPEN;	918	req->type = EIO_OPEN;
…		…
551	REQ_SEND;	924	REQ_SEND;
552	}	925	}
553		926
554	void	927	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	928	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	929	ALIAS:
558	aio_fsync = EIO_FSYNC	930	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	931	aio_fdatasync = EIO_FDATASYNC
560	PPCODE:	932	PPCODE:
561	{	933	{
		934	int fd = s_fileno_croak (fh, 0);
562	dREQ;	935	dREQ;
563		936
564	req->type = ix;	937	req->type = ix;
565	req->sv1 = newSVsv (fh);	938	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	939	req->int1 = fd;
567		940
568	REQ_SEND (req);	941	REQ_SEND (req);
569	}	942	}
570		943
571	void	944	void
		945	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		946	PPCODE:
		947	{
		948	int fd = s_fileno_croak (fh, 0);
		949	dREQ;
		950
		951	req->type = EIO_SYNC_FILE_RANGE;
		952	req->sv1 = newSVsv (fh);
		953	req->int1 = fd;
		954	req->offs = offset;
		955	req->size = nbytes;
		956	req->int2 = flags;
		957
		958	REQ_SEND (req);
		959	}
		960
		961	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	962	aio_close (SV *fh, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	963	PPCODE:
575	{	964	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	965	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		966	int fd = s_fileno_croak (fh, 0);
577	dREQ;	967	dREQ;
578		968
579	if (close_pipe < 0)	969	if (close_pipe < 0)
580	{	970	{
581	int pipefd [2];	971	int pipefd [2];
…		…
589	}	979	}
590		980
591	req->type = EIO_DUP2;	981	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	982	req->int1 = close_pipe;
593	req->sv2 = newSVsv (fh);	983	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	984	req->int2 = fd;
595		985
596	REQ_SEND (req);	986	REQ_SEND (req);
597	}	987	}
598		988
599	void	989	void
600	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	990	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
601	ALIAS:	991	ALIAS:
602	aio_read = EIO_READ	992	aio_read = EIO_READ
603	aio_write = EIO_WRITE	993	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	994	PPCODE:
606	{	995	{
607	STRLEN svlen;	996	STRLEN svlen;
		997	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	998	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	999	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		1000
614	if (dataoffset < 0)	1001	if (dataoffset < 0)
615	dataoffset += svlen;	1002	dataoffset += svlen;
616		1003
617	if (dataoffset < 0 || dataoffset > svlen)	1004	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	1010	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	1011	len = svlen - dataoffset;
625	}	1012	}
626	else	1013	else
627	{	1014	{
628	/* read: grow scalar as necessary */	1015	/* read: check type and grow scalar as necessary */
		1016	SvUPGRADE (data, SVt_PV);
629	svptr = SvGROW (data, len + dataoffset + 1);	1017	svptr = SvGROW (data, len + dataoffset + 1);
630	}	1018	}
631		1019
632	if (len < 0)
633	croak ("length must not be negative");
634
635	{	1020	{
636	dREQ;	1021	dREQ;
637		1022
638	req->type = ix;	1023	req->type = ix;
639	req->sv1 = newSVsv (fh);	1024	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1025	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1026	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	1027	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	1028	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	1029	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	1030	req->stroffset = dataoffset;
…		…
655	}	1039	}
656	}	1040	}
657		1041
658	void	1042	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1043	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
660	PROTOTYPE: $$;$
661	PPCODE:	1044	PPCODE:
662	{	1045	{
663	SV *data;	1046	SV *data;
664	dREQ;	1047	dREQ;
665
666	data = newSV (NAME_MAX);
667	SvPOK_on (data);
668		1048
669	req->type = EIO_READLINK;	1049	req->type = EIO_READLINK;
670	req->sv1 = newSVsv (path);	1050	req->sv1 = newSVsv (path);
671	req->ptr1 = SvPVbyte_nolen (req->sv1);	1051	req->ptr1 = SvPVbyte_nolen (req->sv1);
672	req->sv2 = data;
673	req->ptr2 = SvPVbyte_nolen (data);
674		1052
675	REQ_SEND;	1053	REQ_SEND;
676	}	1054	}
677		1055
678	void	1056	void
679	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1057	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
680	PROTOTYPE: $$$$;$
681	PPCODE:	1058	PPCODE:
682	{	1059	{
		1060	int ifd = s_fileno_croak (in_fh , 0);
		1061	int ofd = s_fileno_croak (out_fh, 1);
683	dREQ;	1062	dREQ;
684		1063
685	req->type = EIO_SENDFILE;	1064	req->type = EIO_SENDFILE;
686	req->sv1 = newSVsv (out_fh);	1065	req->sv1 = newSVsv (out_fh);
687	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1066	req->int1 = ofd;
688	req->sv2 = newSVsv (in_fh);	1067	req->sv2 = newSVsv (in_fh);
689	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1068	req->int2 = ifd;
690	req->offs = SvVAL64 (in_offset);	1069	req->offs = in_offset;
691	req->size = length;	1070	req->size = length;
692		1071
693	REQ_SEND;	1072	REQ_SEND;
694	}	1073	}
695		1074
696	void	1075	void
697	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1076	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
698	PROTOTYPE: $$$;$
699	PPCODE:	1077	PPCODE:
700	{	1078	{
		1079	int fd = s_fileno_croak (fh, 0);
701	dREQ;	1080	dREQ;
702		1081
703	req->type = EIO_READAHEAD;	1082	req->type = EIO_READAHEAD;
704	req->sv1 = newSVsv (fh);	1083	req->sv1 = newSVsv (fh);
705	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1084	req->int1 = fd;
706	req->offs = SvVAL64 (offset);	1085	req->offs = offset;
707	req->size = length;	1086	req->size = length;
708		1087
709	REQ_SEND;	1088	REQ_SEND;
710	}	1089	}
711		1090
712	void	1091	void
713	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1092	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
714	ALIAS:	1093	ALIAS:
715	aio_stat = EIO_STAT	1094	aio_stat = EIO_STAT
716	aio_lstat = EIO_LSTAT	1095	aio_lstat = EIO_LSTAT
		1096	aio_statvfs = EIO_STATVFS
717	PPCODE:	1097	PPCODE:
718	{	1098	{
719	dREQ;	1099	dREQ;
720		1100
721	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
722	if (!req->ptr2)
723	{
724	req_destroy (req);
725	croak ("out of memory during aio_stat statdata allocation");
726	}
727
728	req->flags |= EIO_FLAG_PTR2_FREE;
729	req->sv1 = newSVsv (fh_or_path);	1101	req->sv1 = newSVsv (fh_or_path);
730		1102
731	if (SvPOK (fh_or_path))	1103	if (SvPOK (req->sv1))
732	{	1104	{
733	req->type = ix;	1105	req->type = ix;
734	req->ptr1 = SvPVbyte_nolen (req->sv1);	1106	req->ptr1 = SvPVbyte_nolen (req->sv1);
735	}	1107	}
736	else	1108	else
737	{	1109	{
738	req->type = EIO_FSTAT;	1110	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
739	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1111	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
740	}	1112	}
741		1113
742	REQ_SEND;	1114	REQ_SEND;
743	}	1115	}
		1116
		1117	UV
		1118	major (UV dev)
		1119	ALIAS:
		1120	minor = 1
		1121	CODE:
		1122	RETVAL = ix ? major (dev) : minor (dev);
		1123	OUTPUT:
		1124	RETVAL
		1125
		1126	UV
		1127	makedev (UV maj, UV min)
		1128	CODE:
		1129	RETVAL = makedev (maj, min);
		1130	OUTPUT:
		1131	RETVAL
744		1132
745	void	1133	void
746	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1134	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
747	PPCODE:	1135	PPCODE:
748	{	1136	{
…		…
750		1138
751	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1139	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
752	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1140	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
753	req->sv1 = newSVsv (fh_or_path);	1141	req->sv1 = newSVsv (fh_or_path);
754		1142
755	if (SvPOK (fh_or_path))	1143	if (SvPOK (req->sv1))
756	{	1144	{
757	req->type = EIO_UTIME;	1145	req->type = EIO_UTIME;
758	req->ptr1 = SvPVbyte_nolen (req->sv1);	1146	req->ptr1 = SvPVbyte_nolen (req->sv1);
759	}	1147	}
760	else	1148	else
…		…
773	dREQ;	1161	dREQ;
774		1162
775	req->sv1 = newSVsv (fh_or_path);	1163	req->sv1 = newSVsv (fh_or_path);
776	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1164	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
777		1165
778	if (SvPOK (fh_or_path))	1166	if (SvPOK (req->sv1))
779	{	1167	{
780	req->type = EIO_TRUNCATE;	1168	req->type = EIO_TRUNCATE;
781	req->ptr1 = SvPVbyte_nolen (req->sv1);	1169	req->ptr1 = SvPVbyte_nolen (req->sv1);
782	}	1170	}
783	else	1171	else
…		…
791		1179
792	void	1180	void
793	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1181	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
794	ALIAS:	1182	ALIAS:
795	aio_chmod = EIO_CHMOD	1183	aio_chmod = EIO_CHMOD
796	aio_fchmod = EIO_FCHMOD
797	aio_mkdir = EIO_MKDIR	1184	aio_mkdir = EIO_MKDIR
798	PPCODE:	1185	PPCODE:
799	{	1186	{
800	dREQ;	1187	dREQ;
801		1188
802	req->type = ix;
803	req->int2 = mode;	1189	req->int2 = mode;
804	req->sv1 = newSVsv (fh_or_path);	1190	req->sv1 = newSVsv (fh_or_path);
805		1191
806	if (ix == EIO_FCHMOD)	1192	if (SvPOK (req->sv1))
807	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1193	{
		1194	req->type = ix;
		1195	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1196	}
808	else	1197	else
809	req->ptr1 = SvPVbyte_nolen (req->sv1);	1198	{
		1199	req->type = EIO_FCHMOD;
		1200	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1201	}
810		1202
811	REQ_SEND;	1203	REQ_SEND;
812	}	1204	}
813		1205
814	void	1206	void
…		…
819		1211
820	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1212	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
821	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1213	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
822	req->sv1 = newSVsv (fh_or_path);	1214	req->sv1 = newSVsv (fh_or_path);
823		1215
824	if (SvPOK (fh_or_path))	1216	if (SvPOK (req->sv1))
825	{	1217	{
826	req->type = EIO_CHOWN;	1218	req->type = EIO_CHOWN;
827	req->ptr1 = SvPVbyte_nolen (req->sv1);	1219	req->ptr1 = SvPVbyte_nolen (req->sv1);
828	}	1220	}
829	else	1221	else
…		…
834		1226
835	REQ_SEND;	1227	REQ_SEND;
836	}	1228	}
837		1229
838	void	1230	void
		1231	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1232	PPCODE:
		1233	{
		1234	dREQ;
		1235
		1236	req->type = EIO_READDIR;
		1237	req->sv1 = newSVsv (pathname);
		1238	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1239	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1240
		1241	if (flags & EIO_READDIR_DENTS)
		1242	req->int1 |= EIO_READDIR_CUSTOM2;
		1243
		1244	REQ_SEND;
		1245	}
		1246
		1247	void
839	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1248	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
840	ALIAS:	1249	ALIAS:
841	aio_unlink = EIO_UNLINK	1250	aio_unlink = EIO_UNLINK
842	aio_rmdir = EIO_RMDIR	1251	aio_rmdir = EIO_RMDIR
843	aio_readdir = EIO_READDIR	1252	aio_readdir = EIO_READDIR
…		…
885		1294
886	REQ_SEND;	1295	REQ_SEND;
887	}	1296	}
888		1297
889	void	1298	void
		1299	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1300	ALIAS:
		1301	aio_mtouch = EIO_MTOUCH
		1302	aio_msync = EIO_MSYNC
		1303	PPCODE:
		1304	{
		1305	STRLEN svlen;
		1306	char *svptr = SvPVbyte (data, svlen);
		1307	UV len = SvUV (length);
		1308
		1309	if (offset < 0)
		1310	offset += svlen;
		1311
		1312	if (offset < 0 || offset > svlen)
		1313	croak ("offset outside of scalar");
		1314
		1315	if (!SvOK (length) || len + offset > svlen)
		1316	len = svlen - offset;
		1317
		1318	{
		1319	dREQ;
		1320
		1321	req->type = ix;
		1322	req->sv2 = SvREFCNT_inc (data);
		1323	req->ptr2 = (char *)svptr + offset;
		1324	req->size = len;
		1325	req->int1 = flags;
		1326
		1327	REQ_SEND;
		1328	}
		1329	}
		1330
		1331	void
		1332	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1333	PPCODE:
		1334	{
		1335	STRLEN svlen;
		1336	char *svptr = SvPVbyte (data, svlen);
		1337	UV len = SvUV (length);
		1338
		1339	if (offset < 0)
		1340	offset += svlen;
		1341
		1342	if (offset < 0 || offset > svlen)
		1343	croak ("offset outside of scalar");
		1344
		1345	if (!SvOK (length) || len + offset > svlen)
		1346	len = svlen - offset;
		1347
		1348	{
		1349	dREQ;
		1350
		1351	req->type = EIO_MLOCK;
		1352	req->sv2 = SvREFCNT_inc (data);
		1353	req->ptr2 = (char *)svptr + offset;
		1354	req->size = len;
		1355
		1356	REQ_SEND;
		1357	}
		1358	}
		1359
		1360	void
		1361	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1362	PPCODE:
		1363	{
		1364	dREQ;
		1365
		1366	req->type = EIO_MLOCKALL;
		1367	req->int1 = flags;
		1368
		1369	REQ_SEND;
		1370	}
		1371
		1372	void
890	aio_busy (double delay, SV *callback=&PL_sv_undef)	1373	aio_busy (double delay, SV *callback=&PL_sv_undef)
891	PPCODE:	1374	PPCODE:
892	{	1375	{
893	dREQ;	1376	dREQ;
894		1377
…		…
898	REQ_SEND;	1381	REQ_SEND;
899	}	1382	}
900		1383
901	void	1384	void
902	aio_group (SV *callback=&PL_sv_undef)	1385	aio_group (SV *callback=&PL_sv_undef)
903	PROTOTYPE: ;$
904	PPCODE:	1386	PPCODE:
905	{	1387	{
906	dREQ;	1388	dREQ;
907		1389
908	req->type = EIO_GROUP;	1390	req->type = EIO_GROUP;
909		1391
910	eio_submit (req);	1392	req_submit (req);
911	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1393	XPUSHs (req_sv (req, aio_grp_stash));
912	}	1394	}
913		1395
914	void	1396	void
915	aio_nop (SV *callback=&PL_sv_undef)	1397	aio_nop (SV *callback=&PL_sv_undef)
916	ALIAS:	1398	ALIAS:
…		…
925	REQ_SEND;	1407	REQ_SEND;
926	}	1408	}
927		1409
928	int	1410	int
929	aioreq_pri (int pri = 0)	1411	aioreq_pri (int pri = 0)
930	PROTOTYPE: ;$
931	CODE:	1412	CODE:
932	RETVAL = next_pri - EIO_PRI_BIAS;	1413	RETVAL = next_pri;
933	if (items > 0)	1414	if (items > 0)
934	{	1415	{
935	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1416	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1417	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
937	next_pri = pri + EIO_PRI_BIAS;	1418	next_pri = pri;
938	}	1419	}
939	OUTPUT:	1420	OUTPUT:
940	RETVAL	1421	RETVAL
941		1422
942	void	1423	void
943	aioreq_nice (int nice = 0)	1424	aioreq_nice (int nice = 0)
944	CODE:	1425	CODE:
945	nice = next_pri - nice;	1426	nice = next_pri - nice;
946	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1427	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
947	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1428	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
948	next_pri = nice + EIO_PRI_BIAS;	1429	next_pri = nice;
949		1430
950	void	1431	void
951	flush ()	1432	flush ()
952	PROTOTYPE:
953	CODE:	1433	CODE:
954	while (eio_nreqs ())	1434	while (eio_nreqs ())
955	{	1435	{
956	poll_wait ();	1436	poll_wait ();
957	poll_cb ();	1437	poll_cb ();
958	}	1438	}
959		1439
960	int	1440	int
961	poll()	1441	poll ()
962	PROTOTYPE:
963	CODE:	1442	CODE:
964	poll_wait ();	1443	poll_wait ();
965	RETVAL = poll_cb ();	1444	RETVAL = poll_cb ();
966	OUTPUT:	1445	OUTPUT:
967	RETVAL	1446	RETVAL
968		1447
969	int	1448	int
970	poll_fileno()	1449	poll_fileno ()
971	PROTOTYPE:
972	CODE:	1450	CODE:
973	RETVAL = respipe [0];	1451	RETVAL = s_epipe_fd (&respipe);
974	OUTPUT:	1452	OUTPUT:
975	RETVAL	1453	RETVAL
976		1454
977	int	1455	int
978	poll_cb(...)	1456	poll_cb (...)
979	PROTOTYPE:	1457	PROTOTYPE:
980	CODE:	1458	CODE:
981	RETVAL = poll_cb ();	1459	RETVAL = poll_cb ();
982	OUTPUT:	1460	OUTPUT:
983	RETVAL	1461	RETVAL
984		1462
985	void	1463	void
986	poll_wait()	1464	poll_wait ()
987	PROTOTYPE:
988	CODE:	1465	CODE:
989	poll_wait ();	1466	poll_wait ();
990		1467
991	int	1468	int
992	nreqs()	1469	nreqs ()
993	PROTOTYPE:
994	CODE:	1470	CODE:
995	RETVAL = eio_nreqs ();	1471	RETVAL = eio_nreqs ();
996	OUTPUT:	1472	OUTPUT:
997	RETVAL	1473	RETVAL
998		1474
999	int	1475	int
1000	nready()	1476	nready ()
1001	PROTOTYPE:
1002	CODE:	1477	CODE:
1003	RETVAL = eio_nready ();	1478	RETVAL = eio_nready ();
1004	OUTPUT:	1479	OUTPUT:
1005	RETVAL	1480	RETVAL
1006		1481
1007	int	1482	int
1008	npending()	1483	npending ()
1009	PROTOTYPE:
1010	CODE:	1484	CODE:
1011	RETVAL = eio_npending ();	1485	RETVAL = eio_npending ();
1012	OUTPUT:	1486	OUTPUT:
1013	RETVAL	1487	RETVAL
1014		1488
1015	int	1489	int
1016	nthreads()	1490	nthreads ()
1017	PROTOTYPE:
1018	CODE:	1491	CODE:
1019	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1492	RETVAL = eio_nthreads ();
1020	RETVAL = started;
1021	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1022	OUTPUT:	1493	OUTPUT:
1023	RETVAL	1494	RETVAL
1024		1495
		1496	int
		1497	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1498	CODE:
		1499	RETVAL = posix_fadvise (fh, offset, length, advice);
		1500	OUTPUT:
		1501	RETVAL
		1502
		1503	ssize_t
		1504	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1505	CODE:
		1506	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1507	OUTPUT:
		1508	RETVAL
		1509
		1510	void
		1511	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1512	PPCODE:
		1513	sv_unmagic (scalar, MMAP_MAGIC);
		1514	{
		1515	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1516	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1517	if (addr == (void *)-1)
		1518	XSRETURN_NO;
		1519
		1520	sv_force_normal (scalar);
		1521
		1522	/* we store the length in mg_obj, as namlen is I32 :/ */
		1523	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1524	->mg_obj = (SV *)length;
		1525
		1526	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1527
		1528	if (!(prot & PROT_WRITE))
		1529	SvREADONLY_on (scalar);
		1530
		1531	if (SvLEN (scalar))
		1532	Safefree (SvPVX (scalar));
		1533
		1534	SvPVX (scalar) = (char *)addr;
		1535	SvCUR_set (scalar, length);
		1536	SvLEN_set (scalar, 0);
		1537	SvPOK_only (scalar);
		1538
		1539	XSRETURN_YES;
		1540	}
		1541
		1542	void
		1543	munmap (SV *scalar)
		1544	CODE:
		1545	sv_unmagic (scalar, MMAP_MAGIC);
		1546
		1547	int
		1548	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1549	ALIAS:
		1550	mprotect = 1
		1551	CODE:
		1552	{
		1553	STRLEN svlen;
		1554	void *addr = SvPVbyte (scalar, svlen);
		1555	size_t len = SvUV (length);
		1556
		1557	if (offset < 0)
		1558	offset += svlen;
		1559
		1560	if (offset < 0 || offset > svlen)
		1561	croak ("offset outside of scalar");
		1562
		1563	if (!SvOK (length) || len + offset > svlen)
		1564	len = svlen - offset;
		1565
		1566	addr = (void *)(((intptr_t)addr) + offset);
		1567	eio_page_align (&addr, &len);
		1568
		1569	switch (ix)
		1570	{
		1571	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1572	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1573	}
		1574	}
		1575	OUTPUT:
		1576	RETVAL
		1577
		1578	int
		1579	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1580	CODE:
		1581	{
		1582	STRLEN svlen;
		1583	void *addr = SvPVbyte (scalar, svlen);
		1584	size_t len = SvUV (length);
		1585
		1586	if (offset < 0)
		1587	offset += svlen;
		1588
		1589	if (offset < 0 || offset > svlen)
		1590	croak ("offset outside of scalar");
		1591
		1592	if (!SvOK (length) || len + offset > svlen)
		1593	len = svlen - offset;
		1594
		1595	addr = (void *)(((intptr_t)addr) + offset);
		1596	eio_page_align (&addr, &len);
		1597	#if _POSIX_MEMLOCK_RANGE
		1598	RETVAL = munlock (addr, len);
		1599	#else
		1600	RETVAL = ((errno = ENOSYS), -1);
		1601	#endif
		1602	}
		1603	OUTPUT:
		1604	RETVAL
		1605
		1606	int
		1607	munlockall ()
		1608	CODE:
		1609	#if _POSIX_MEMLOCK
		1610	munlockall ();
		1611	#else
		1612	RETVAL = -1;
		1613	errno = ENOSYS;
		1614	#endif
		1615	OUTPUT:
		1616	RETVAL
		1617
1025	void _on_next_submit (SV *cb)	1618	void _on_next_submit (SV *cb)
1026	CODE:	1619	CODE:
1027	SvREFCNT_dec (on_next_submit);	1620	SvREFCNT_dec (on_next_submit);
1028	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1621	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1029		1622
…		…
1036	CODE:	1629	CODE:
1037	eio_cancel (req);	1630	eio_cancel (req);
1038		1631
1039	void	1632	void
1040	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1633	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1041	CODE:	1634	PPCODE:
		1635	{
		1636	if (GIMME_V != G_VOID)
		1637	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1638
		1639	if (items > 1)
		1640	{
		1641	SV *cb_cv =get_cb (callback);
		1642
1042	SvREFCNT_dec (req->callback);	1643	SvREFCNT_dec (req->callback);
1043	req->callback = newSVsv (callback);	1644	req->callback = SvREFCNT_inc (cb_cv);
		1645	}
		1646	}
1044		1647
1045	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1648	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1046		1649
1047	void	1650	void
1048	add (aio_req grp, ...)	1651	add (aio_req grp, ...)
…		…
1080	AV *av;	1683	AV *av;
1081		1684
1082	grp->errorno = errno;	1685	grp->errorno = errno;
1083		1686
1084	av = newAV ();	1687	av = newAV ();
		1688	av_extend (av, items - 1);
1085		1689
1086	for (i = 1; i < items; ++i )	1690	for (i = 1; i < items; ++i )
1087	av_push (av, newSVsv (ST (i)));	1691	av_push (av, newSVsv (ST (i)));
1088		1692
1089	SvREFCNT_dec (grp->sv1);	1693	SvREFCNT_dec (grp->sv1);
…		…
1103	void	1707	void
1104	feed (aio_req grp, SV *callback=&PL_sv_undef)	1708	feed (aio_req grp, SV *callback=&PL_sv_undef)
1105	CODE:	1709	CODE:
1106	{	1710	{
1107	SvREFCNT_dec (grp->sv2);	1711	SvREFCNT_dec (grp->sv2);
1108	grp->sv2 = newSVsv (callback);	1712	grp->sv2 = newSVsv (callback);
		1713	grp->feed = aio_grp_feed;
1109		1714
1110	if (grp->int2 <= 0)	1715	if (grp->int2 <= 0)
1111	grp->int2 = 2;	1716	grp->int2 = 2;
1112		1717
1113	eio_grp_limit (grp, grp->int2);	1718	eio_grp_limit (grp, grp->int2);

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