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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.118 by root, Sun May 11 00:01:03 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
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_COMMON \	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	#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
92		274
93	static int req_invoke (eio_req *req);	275	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	276	#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);	277	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	278	#define EIO_DESTROY(req) req_destroy (req)
99		279
100	enum {	280	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	281	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
105		285
106	typedef eio_req *aio_req;	286	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	287	typedef eio_req *aio_req_ornot;
108		288
109	static SV *on_next_submit;	289	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	290	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	291	static int max_outstanding;
112		292
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	293	static s_epipe respipe;
114		294
115	static void req_destroy (aio_req req);	295	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	296	static void req_cancel (aio_req req);
117		297
118	static void want_poll (void)	298	static void want_poll (void)
119	{	299	{
120	/* write a dummy byte to the pipe so fh becomes ready */	300	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	301	s_epipe_signal (&respipe);
122	}	302	}
123		303
124	static void done_poll (void)	304	static void done_poll (void)
125	{	305	{
126	/* read any signals sent by the worker threads */	306	/* read any signals sent by the worker threads */
127	char buf [4];	307	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	308	}
131		309
132	/* must be called at most once */	310	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	311	static SV *req_sv (aio_req req, HV *stash)
134	{	312	{
135	if (!req->self)	313	if (!req->self)
136	{	314	{
137	req->self = (SV *)newHV ();	315	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	316	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	317	}
140		318
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	319	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	320	}
143		321
144	static aio_req SvAIO_REQ (SV *sv)	322	static aio_req SvAIO_REQ (SV *sv)
145	{	323	{
146	MAGIC *mg;	324	MAGIC *mg;
147		325
148	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")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	330	croak ("object of class IO::AIO::REQ expected");
150		331
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	332	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		333
153	return mg ? (aio_req)mg->mg_ptr : 0;	334	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	335	}
…		…
160	dSP;	341	dSP;
161		342
162	ENTER;	343	ENTER;
163	SAVETMPS;	344	SAVETMPS;
164	PUSHMARK (SP);	345	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	346	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	347	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	348	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	349	SPAGAIN;
169	FREETMPS;	350	FREETMPS;
170	LEAVE;	351	LEAVE;
…		…
173		354
174	static void req_submit (eio_req *req)	355	static void req_submit (eio_req *req)
175	{	356	{
176	eio_submit (req);	357	eio_submit (req);
177		358
178	if (on_next_submit)	359	if (expect_false (on_next_submit))
179	{	360	{
180	dSP;	361	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	362	SV *cb = sv_2mortal (on_next_submit);
182		363
183	on_next_submit = 0;	364	on_next_submit = 0;
…		…
188	}	369	}
189	}	370	}
190		371
191	static int req_invoke (eio_req *req)	372	static int req_invoke (eio_req *req)
192	{	373	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	374	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	375	SvREADONLY_off (req->sv2);
197		376
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	377	if (!EIO_CANCELLED (req) && req->callback)
199	{	378	{
		379	dSP;
		380	static SV *sv_result_cache; /* caches the result integer SV */
		381	SV *sv_result;
		382
200	ENTER;	383	ENTER;
201	SAVETMPS;	384	SAVETMPS;
202	PUSHMARK (SP);	385	PUSHMARK (SP);
203	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	}
204		400
205	switch (req->type)	401	switch (req->type)
206	{	402	{
207	case EIO_READDIR:	403	case EIO_READDIR:
208	{	404	{
209	SV *rv = &PL_sv_undef;	405	SV *rv = &PL_sv_undef;
210		406
211	if (req->result >= 0)	407	if (req->result >= 0)
212	{	408	{
213	int i;	409	int i;
214	char *buf = req->ptr2;	410	char *names = (char *)req->ptr2;
		411	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215	AV *av = newAV ();	412	AV *av = newAV ();
216		413
217	av_extend (av, req->result - 1);	414	av_extend (av, req->result - 1);
218		415
219	for (i = 0; i < req->result; ++i)	416	for (i = 0; i < req->result; ++i)
220	{	417	{
221	SV *sv = newSVpv (buf, 0);	418	if (req->int1 & EIO_READDIR_DENTS)
		419	{
		420	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		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
223	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);
224	buf += SvCUR (sv) + 1;	450	names += SvCUR (name) + 1;
		451	}
225	}	452	}
226		453
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	454	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	455	}
229		456
230	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))));
231	}	461	}
232	break;	462	break;
233		463
234	case EIO_OPEN:	464	case EIO_OPEN:
235	{	465	{
…		…
241	GV *gv = (GV *)sv_newmortal ();	471	GV *gv = (GV *)sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	472	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243	char sym [64];	473	char sym [64];
244	int symlen;	474	int symlen;
245		475
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	476	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	477	gv_init (gv, aio_stash, sym, symlen, 0);
248		478
249	symlen = snprintf (	479	symlen = snprintf (
250	sym,	480	sym,
251	sizeof (sym),	481	sizeof (sym),
252	"%s&=%d",	482	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	483	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	484	(int)req->result
255	);	485	);
256		486
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	487	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	488	fh = (SV *)gv;
259	}	489	}
260		490
261	PUSHs (fh);	491	PUSHs (fh);
262	}	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
263	break;	523	break;
264		524
265	case EIO_GROUP:	525	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	526	req->int1 = 2; /* mark group as finished */
267		527
…		…
280	case EIO_BUSY:	540	case EIO_BUSY:
281	break;	541	break;
282		542
283	case EIO_READLINK:	543	case EIO_READLINK:
284	if (req->result > 0)	544	if (req->result > 0)
285	{	545	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
286	SvCUR_set (req->sv2, req->result);
287	*SvEND (req->sv2) = 0;
288	PUSHs (req->sv2);
289	}
290	break;	546	break;
291		547
292	case EIO_STAT:	548	case EIO_STAT:
293	case EIO_LSTAT:	549	case EIO_LSTAT:
294	case EIO_FSTAT:	550	case EIO_FSTAT:
295	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	551	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
296	PL_laststatval = req->result;	552	PL_laststatval = req->result;
297	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	553	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
298	PUSHs (sv_2mortal (newSViv (req->result)));	554	PUSHs (sv_result);
299	break;	555	break;
300		556
301	case EIO_READ:	557	case EIO_READ:
		558	{
302	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));
303	*SvEND (req->sv2) = 0;	560	*SvEND (req->sv2) = 0;
304	PUSHs (sv_2mortal (newSViv (req->result)));	561	SvPOK_only (req->sv2);
		562	SvSETMAGIC (req->sv2);
		563	PUSHs (sv_result);
		564	}
305	break;	565	break;
306		566
307	case EIO_DUP2:	567	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
308	if (req->result > 0)	568	if (req->result > 0)
309	req->result = 0;	569	SvIV_set (sv_result, 0);
310	/* FALLTHROUGH */	570	/* FALLTHROUGH */
311		571
312	default:	572	default:
313	PUSHs (sv_2mortal (newSViv (req->result)));	573	PUSHs (sv_result);
314	break;	574	break;
315	}	575	}
316		576
317	errno = req->errorno;	577	errno = req->errorno;
318		578
319	PUTBACK;	579	PUTBACK;
320	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	580	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
321	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;
322		587
323	FREETMPS;	588	FREETMPS;
324	LEAVE;	589	LEAVE;
325		590
326	PUTBACK;	591	PUTBACK;
…		…
355	grp->sv2 = 0;	620	grp->sv2 = 0;
356		621
357	eio_grp_cancel (grp);	622	eio_grp_cancel (grp);
358	}	623	}
359		624
360	#ifdef USE_SOCKETS_AS_HANDLES
361	# define TO_SOCKET(x) (win32_get_osfhandle (x))
362	#else
363	# define TO_SOCKET(x) (x)
364	#endif
365
366	static void	625	static void
367	create_respipe (void)	626	create_respipe (void)
368	{	627	{
369	int old_readfd = respipe [0];
370
371	if (respipe [1] >= 0)
372	respipe_close (TO_SOCKET (respipe [1]));
373
374	#ifdef _WIN32
375	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
376	#else
377	if (pipe (respipe))	628	if (s_epipe_renew (&respipe))
378	#endif
379	croak ("unable to initialize result pipe");	629	croak ("IO::AIO: unable to initialize result pipe");
380
381	if (old_readfd >= 0)
382	{
383	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
384	croak ("unable to initialize result pipe(2)");
385
386	respipe_close (respipe [0]);
387	respipe [0] = old_readfd;
388	}
389
390	#ifdef _WIN32
391	int arg = 1;
392	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
393	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
394	#else
395	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
396	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
397	#endif
398	croak ("unable to initialize result pipe(3)");
399
400	respipe_osf [0] = TO_SOCKET (respipe [0]);
401	respipe_osf [1] = TO_SOCKET (respipe [1]);
402	}	630	}
403		631
404	static void poll_wait (void)	632	static void poll_wait (void)
405	{	633	{
406	fd_set rfd;
407
408	while (eio_nreqs ())	634	while (eio_nreqs ())
409	{	635	{
410	int size;	636	int size;
411		637
412	X_LOCK (reslock);	638	X_LOCK (reslock);
…		…
414	X_UNLOCK (reslock);	640	X_UNLOCK (reslock);
415		641
416	if (size)	642	if (size)
417	return;	643	return;
418		644
419	maybe_start_thread ();	645	etp_maybe_start_thread ();
420		646
421	FD_ZERO (&rfd);	647	s_epipe_wait (&respipe);
422	FD_SET (respipe [0], &rfd);
423
424	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
425	}	648	}
426	}	649	}
427		650
428	static int poll_cb (void)	651	static int poll_cb (void)
429	{	652	{
430	int res;	653	for (;;)
431
432	do
433	{	654	{
434	res = eio_poll ();	655	int res = eio_poll ();
435		656
436	if (res > 0)	657	if (res > 0)
437	croak (0);	658	croak (0);
		659
		660	if (!max_outstanding || max_outstanding > eio_nreqs ())
		661	return res;
		662
		663	poll_wait ();
438	}	664	}
439	while (max_outstanding && max_outstanding <= eio_nreqs ());
440
441	return res;
442	}	665	}
443		666
444	static void atfork_child (void)	667	static void atfork_child (void)
445	{	668	{
446	create_respipe ();	669	create_respipe ();
447	}	670	}
448		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
449	#define dREQ \	724	#define dREQ \
		725	SV *cb_cv; \
450	aio_req req; \	726	aio_req req; \
451	int req_pri = next_pri; \	727	int req_pri = next_pri; \
452	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	728	next_pri = EIO_PRI_DEFAULT; \
453	\	729	\
454	if (SvOK (callback) && !SvROK (callback)) \	730	cb_cv = get_cb (callback); \
455	croak ("callback must be undef or of reference type"); \
456	\	731	\
457	Newz (0, req, 1, eio_req); \	732	Newz (0, req, 1, eio_req); \
458	if (!req) \	733	if (!req) \
459	croak ("out of memory during eio_req allocation"); \	734	croak ("out of memory during eio_req allocation"); \
460	\	735	\
461	req->callback = newSVsv (callback); \	736	req->callback = SvREFCNT_inc (cb_cv); \
462	req->pri = req_pri	737	req->pri = req_pri
463		738
464	#define REQ_SEND \	739	#define REQ_SEND \
		740	PUTBACK; \
465	req_submit (req); \	741	req_submit (req); \
		742	SPAGAIN; \
466	\	743	\
467	if (GIMME_V != G_VOID) \	744	if (GIMME_V != G_VOID) \
468	XPUSHs (req_sv (req, AIO_REQ_KLASS));	745	XPUSHs (req_sv (req, aio_req_stash));
469		746
470	MODULE = IO::AIO PACKAGE = IO::AIO	747	MODULE = IO::AIO PACKAGE = IO::AIO
471		748
472	PROTOTYPES: ENABLE	749	PROTOTYPES: ENABLE
473		750
474	BOOT:	751	BOOT:
475	{	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
476	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);
477		855
478	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	856	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
479	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	857	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
480	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
481	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
482	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
483	#ifdef _WIN32
484	X_MUTEX_CHECK (wrklock);
485	X_MUTEX_CHECK (reslock);
486	X_MUTEX_CHECK (reqlock);
487	X_MUTEX_CHECK (reqwait);
488	X_MUTEX_CHECK (preadwritelock);
489	X_MUTEX_CHECK (readdirlock);
490		858
491	X_COND_CHECK (reqwait);	859	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
492	#else
493	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
494	#endif
495		860
496	create_respipe ();	861	create_respipe ();
497		862
498	if (eio_init (want_poll, done_poll) < 0)	863	if (eio_init (want_poll, done_poll) < 0)
499	croak ("IO::AIO: unable to initialise eio library");	864	croak ("IO::AIO: unable to initialise eio library");
500		865
501	/* atfork child called in fifo order, so before eio's handler */	866	/* atfork child called in fifo order, so before eio's handler */
502	X_THREAD_ATFORK (0, 0, atfork_child);	867	X_THREAD_ATFORK (0, 0, atfork_child);
503	}	868	}
504		869
505	void	870	void
506	max_poll_reqs (int nreqs)	871	max_poll_reqs (unsigned int nreqs)
507	PROTOTYPE: $	872	PROTOTYPE: $
508	CODE:	873	CODE:
509	eio_set_max_poll_reqs (nreqs);	874	eio_set_max_poll_reqs (nreqs);
510		875
511	void	876	void
…		…
513	PROTOTYPE: $	878	PROTOTYPE: $
514	CODE:	879	CODE:
515	eio_set_max_poll_time (nseconds);	880	eio_set_max_poll_time (nseconds);
516		881
517	void	882	void
518	min_parallel (int nthreads)	883	min_parallel (unsigned int nthreads)
519	PROTOTYPE: $	884	PROTOTYPE: $
520	CODE:	885	CODE:
521	eio_set_min_parallel (nthreads);	886	eio_set_min_parallel (nthreads);
522		887
523	void	888	void
524	max_parallel (int nthreads)	889	max_parallel (unsigned int nthreads)
525	PROTOTYPE: $	890	PROTOTYPE: $
526	CODE:	891	CODE:
527	eio_set_max_parallel (nthreads);	892	eio_set_max_parallel (nthreads);
528		893
529	void	894	void
530	max_idle (int nthreads)	895	max_idle (unsigned int nthreads)
531	PROTOTYPE: $	896	PROTOTYPE: $
532	CODE:	897	CODE:
533	eio_set_max_idle (nthreads);	898	eio_set_max_idle (nthreads);
534		899
535	void	900	void
		901	idle_timeout (unsigned int seconds)
		902	PROTOTYPE: $
		903	CODE:
		904	eio_set_idle_timeout (seconds);
		905
		906	void
536	max_outstanding (int maxreqs)	907	max_outstanding (unsigned int maxreqs)
537	PROTOTYPE: $	908	PROTOTYPE: $
538	CODE:	909	CODE:
539	max_outstanding = maxreqs;	910	max_outstanding = maxreqs;
540		911
541	void	912	void
542	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)
543	PROTOTYPE: $$$;$
544	PPCODE:	914	PPCODE:
545	{	915	{
546	dREQ;	916	dREQ;
547		917
548	req->type = EIO_OPEN;	918	req->type = EIO_OPEN;
…		…
554	REQ_SEND;	924	REQ_SEND;
555	}	925	}
556		926
557	void	927	void
558	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	928	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
559	PROTOTYPE: $;$
560	ALIAS:	929	ALIAS:
561	aio_fsync = EIO_FSYNC	930	aio_fsync = EIO_FSYNC
562	aio_fdatasync = EIO_FDATASYNC	931	aio_fdatasync = EIO_FDATASYNC
563	PPCODE:	932	PPCODE:
564	{	933	{
		934	int fd = s_fileno_croak (fh, 0);
565	dREQ;	935	dREQ;
566		936
567	req->type = ix;	937	req->type = ix;
568	req->sv1 = newSVsv (fh);	938	req->sv1 = newSVsv (fh);
569	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	939	req->int1 = fd;
570		940
571	REQ_SEND (req);	941	REQ_SEND (req);
572	}	942	}
573		943
574	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
575	aio_close (SV *fh, SV *callback=&PL_sv_undef)	962	aio_close (SV *fh, SV *callback=&PL_sv_undef)
576	PROTOTYPE: $;$
577	PPCODE:	963	PPCODE:
578	{	964	{
579	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);
580	dREQ;	967	dREQ;
581		968
582	if (close_pipe < 0)	969	if (close_pipe < 0)
583	{	970	{
584	int pipefd [2];	971	int pipefd [2];
…		…
592	}	979	}
593		980
594	req->type = EIO_DUP2;	981	req->type = EIO_DUP2;
595	req->int1 = close_pipe;	982	req->int1 = close_pipe;
596	req->sv2 = newSVsv (fh);	983	req->sv2 = newSVsv (fh);
597	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	984	req->int2 = fd;
598		985
599	REQ_SEND (req);	986	REQ_SEND (req);
600	}	987	}
601		988
602	void	989	void
603	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)
604	ALIAS:	991	ALIAS:
605	aio_read = EIO_READ	992	aio_read = EIO_READ
606	aio_write = EIO_WRITE	993	aio_write = EIO_WRITE
607	PROTOTYPE: $$$$$;$
608	PPCODE:	994	PPCODE:
609	{	995	{
610	STRLEN svlen;	996	STRLEN svlen;
		997	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
611	char *svptr = SvPVbyte (data, svlen);	998	char *svptr = SvPVbyte (data, svlen);
612	UV len = SvUV (length);	999	UV len = SvUV (length);
613
614	SvUPGRADE (data, SVt_PV);
615	SvPOK_on (data);
616		1000
617	if (dataoffset < 0)	1001	if (dataoffset < 0)
618	dataoffset += svlen;	1002	dataoffset += svlen;
619		1003
620	if (dataoffset < 0 || dataoffset > svlen)	1004	if (dataoffset < 0 || dataoffset > svlen)
…		…
626	if (!SvOK (length) || len + dataoffset > svlen)	1010	if (!SvOK (length) || len + dataoffset > svlen)
627	len = svlen - dataoffset;	1011	len = svlen - dataoffset;
628	}	1012	}
629	else	1013	else
630	{	1014	{
631	/* read: grow scalar as necessary */	1015	/* read: check type and grow scalar as necessary */
		1016	SvUPGRADE (data, SVt_PV);
632	svptr = SvGROW (data, len + dataoffset + 1);	1017	svptr = SvGROW (data, len + dataoffset + 1);
633	}	1018	}
634		1019
635	if (len < 0)
636	croak ("length must not be negative");
637
638	{	1020	{
639	dREQ;	1021	dREQ;
640		1022
641	req->type = ix;	1023	req->type = ix;
642	req->sv1 = newSVsv (fh);	1024	req->sv1 = newSVsv (fh);
643	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1025	req->int1 = fd;
644	: IoOFP (sv_2io (fh)));
645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1026	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
646	req->size = len;	1027	req->size = len;
647	req->sv2 = SvREFCNT_inc (data);	1028	req->sv2 = SvREFCNT_inc (data);
648	req->ptr2 = (char *)svptr + dataoffset;	1029	req->ptr2 = (char *)svptr + dataoffset;
649	req->stroffset = dataoffset;	1030	req->stroffset = dataoffset;
…		…
658	}	1039	}
659	}	1040	}
660		1041
661	void	1042	void
662	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1043	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$;$
664	PPCODE:	1044	PPCODE:
665	{	1045	{
666	SV *data;	1046	SV *data;
667	dREQ;	1047	dREQ;
668
669	data = newSV (NAME_MAX);
670	SvPOK_on (data);
671		1048
672	req->type = EIO_READLINK;	1049	req->type = EIO_READLINK;
673	req->sv1 = newSVsv (path);	1050	req->sv1 = newSVsv (path);
674	req->ptr1 = SvPVbyte_nolen (req->sv1);	1051	req->ptr1 = SvPVbyte_nolen (req->sv1);
675	req->sv2 = data;
676	req->ptr2 = SvPVbyte_nolen (data);
677		1052
678	REQ_SEND;	1053	REQ_SEND;
679	}	1054	}
680		1055
681	void	1056	void
682	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)
683	PROTOTYPE: $$$$;$
684	PPCODE:	1058	PPCODE:
685	{	1059	{
		1060	int ifd = s_fileno_croak (in_fh , 0);
		1061	int ofd = s_fileno_croak (out_fh, 1);
686	dREQ;	1062	dREQ;
687		1063
688	req->type = EIO_SENDFILE;	1064	req->type = EIO_SENDFILE;
689	req->sv1 = newSVsv (out_fh);	1065	req->sv1 = newSVsv (out_fh);
690	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1066	req->int1 = ofd;
691	req->sv2 = newSVsv (in_fh);	1067	req->sv2 = newSVsv (in_fh);
692	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1068	req->int2 = ifd;
693	req->offs = SvVAL64 (in_offset);	1069	req->offs = in_offset;
694	req->size = length;	1070	req->size = length;
695		1071
696	REQ_SEND;	1072	REQ_SEND;
697	}	1073	}
698		1074
699	void	1075	void
700	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1076	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
701	PROTOTYPE: $$$;$
702	PPCODE:	1077	PPCODE:
703	{	1078	{
		1079	int fd = s_fileno_croak (fh, 0);
704	dREQ;	1080	dREQ;
705		1081
706	req->type = EIO_READAHEAD;	1082	req->type = EIO_READAHEAD;
707	req->sv1 = newSVsv (fh);	1083	req->sv1 = newSVsv (fh);
708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1084	req->int1 = fd;
709	req->offs = SvVAL64 (offset);	1085	req->offs = offset;
710	req->size = length;	1086	req->size = length;
711		1087
712	REQ_SEND;	1088	REQ_SEND;
713	}	1089	}
714		1090
715	void	1091	void
716	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1092	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
717	ALIAS:	1093	ALIAS:
718	aio_stat = EIO_STAT	1094	aio_stat = EIO_STAT
719	aio_lstat = EIO_LSTAT	1095	aio_lstat = EIO_LSTAT
		1096	aio_statvfs = EIO_STATVFS
720	PPCODE:	1097	PPCODE:
721	{	1098	{
722	dREQ;	1099	dREQ;
723		1100
724	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
725	if (!req->ptr2)
726	{
727	req_destroy (req);
728	croak ("out of memory during aio_stat statdata allocation");
729	}
730
731	req->flags |= EIO_FLAG_PTR2_FREE;
732	req->sv1 = newSVsv (fh_or_path);	1101	req->sv1 = newSVsv (fh_or_path);
733		1102
734	if (SvPOK (fh_or_path))	1103	if (SvPOK (req->sv1))
735	{	1104	{
736	req->type = ix;	1105	req->type = ix;
737	req->ptr1 = SvPVbyte_nolen (req->sv1);	1106	req->ptr1 = SvPVbyte_nolen (req->sv1);
738	}	1107	}
739	else	1108	else
740	{	1109	{
741	req->type = EIO_FSTAT;	1110	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
742	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1111	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
743	}	1112	}
744		1113
745	REQ_SEND;	1114	REQ_SEND;
746	}	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
747		1132
748	void	1133	void
749	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)
750	PPCODE:	1135	PPCODE:
751	{	1136	{
…		…
753		1138
754	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1139	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
755	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1140	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
756	req->sv1 = newSVsv (fh_or_path);	1141	req->sv1 = newSVsv (fh_or_path);
757		1142
758	if (SvPOK (fh_or_path))	1143	if (SvPOK (req->sv1))
759	{	1144	{
760	req->type = EIO_UTIME;	1145	req->type = EIO_UTIME;
761	req->ptr1 = SvPVbyte_nolen (req->sv1);	1146	req->ptr1 = SvPVbyte_nolen (req->sv1);
762	}	1147	}
763	else	1148	else
…		…
776	dREQ;	1161	dREQ;
777		1162
778	req->sv1 = newSVsv (fh_or_path);	1163	req->sv1 = newSVsv (fh_or_path);
779	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1164	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
780		1165
781	if (SvPOK (fh_or_path))	1166	if (SvPOK (req->sv1))
782	{	1167	{
783	req->type = EIO_TRUNCATE;	1168	req->type = EIO_TRUNCATE;
784	req->ptr1 = SvPVbyte_nolen (req->sv1);	1169	req->ptr1 = SvPVbyte_nolen (req->sv1);
785	}	1170	}
786	else	1171	else
…		…
794		1179
795	void	1180	void
796	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)
797	ALIAS:	1182	ALIAS:
798	aio_chmod = EIO_CHMOD	1183	aio_chmod = EIO_CHMOD
799	aio_fchmod = EIO_FCHMOD
800	aio_mkdir = EIO_MKDIR	1184	aio_mkdir = EIO_MKDIR
801	PPCODE:	1185	PPCODE:
802	{	1186	{
803	dREQ;	1187	dREQ;
804		1188
805	req->type = ix;
806	req->int2 = mode;	1189	req->int2 = mode;
807	req->sv1 = newSVsv (fh_or_path);	1190	req->sv1 = newSVsv (fh_or_path);
808		1191
809	if (ix == EIO_FCHMOD)	1192	if (SvPOK (req->sv1))
810	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1193	{
		1194	req->type = ix;
		1195	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1196	}
811	else	1197	else
812	req->ptr1 = SvPVbyte_nolen (req->sv1);	1198	{
		1199	req->type = EIO_FCHMOD;
		1200	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1201	}
813		1202
814	REQ_SEND;	1203	REQ_SEND;
815	}	1204	}
816		1205
817	void	1206	void
…		…
822		1211
823	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1212	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
824	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1213	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
825	req->sv1 = newSVsv (fh_or_path);	1214	req->sv1 = newSVsv (fh_or_path);
826		1215
827	if (SvPOK (fh_or_path))	1216	if (SvPOK (req->sv1))
828	{	1217	{
829	req->type = EIO_CHOWN;	1218	req->type = EIO_CHOWN;
830	req->ptr1 = SvPVbyte_nolen (req->sv1);	1219	req->ptr1 = SvPVbyte_nolen (req->sv1);
831	}	1220	}
832	else	1221	else
…		…
837		1226
838	REQ_SEND;	1227	REQ_SEND;
839	}	1228	}
840		1229
841	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
842	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1248	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
843	ALIAS:	1249	ALIAS:
844	aio_unlink = EIO_UNLINK	1250	aio_unlink = EIO_UNLINK
845	aio_rmdir = EIO_RMDIR	1251	aio_rmdir = EIO_RMDIR
846	aio_readdir = EIO_READDIR	1252	aio_readdir = EIO_READDIR
…		…
888		1294
889	REQ_SEND;	1295	REQ_SEND;
890	}	1296	}
891		1297
892	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
893	aio_busy (double delay, SV *callback=&PL_sv_undef)	1373	aio_busy (double delay, SV *callback=&PL_sv_undef)
894	PPCODE:	1374	PPCODE:
895	{	1375	{
896	dREQ;	1376	dREQ;
897		1377
…		…
901	REQ_SEND;	1381	REQ_SEND;
902	}	1382	}
903		1383
904	void	1384	void
905	aio_group (SV *callback=&PL_sv_undef)	1385	aio_group (SV *callback=&PL_sv_undef)
906	PROTOTYPE: ;$
907	PPCODE:	1386	PPCODE:
908	{	1387	{
909	dREQ;	1388	dREQ;
910		1389
911	req->type = EIO_GROUP;	1390	req->type = EIO_GROUP;
912		1391
913	eio_submit (req);	1392	req_submit (req);
914	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1393	XPUSHs (req_sv (req, aio_grp_stash));
915	}	1394	}
916		1395
917	void	1396	void
918	aio_nop (SV *callback=&PL_sv_undef)	1397	aio_nop (SV *callback=&PL_sv_undef)
919	ALIAS:	1398	ALIAS:
…		…
928	REQ_SEND;	1407	REQ_SEND;
929	}	1408	}
930		1409
931	int	1410	int
932	aioreq_pri (int pri = 0)	1411	aioreq_pri (int pri = 0)
933	PROTOTYPE: ;$
934	CODE:	1412	CODE:
935	RETVAL = next_pri - EIO_PRI_BIAS;	1413	RETVAL = next_pri;
936	if (items > 0)	1414	if (items > 0)
937	{	1415	{
938	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1416	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
939	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1417	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
940	next_pri = pri + EIO_PRI_BIAS;	1418	next_pri = pri;
941	}	1419	}
942	OUTPUT:	1420	OUTPUT:
943	RETVAL	1421	RETVAL
944		1422
945	void	1423	void
946	aioreq_nice (int nice = 0)	1424	aioreq_nice (int nice = 0)
947	CODE:	1425	CODE:
948	nice = next_pri - nice;	1426	nice = next_pri - nice;
949	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1427	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
950	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1428	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
951	next_pri = nice + EIO_PRI_BIAS;	1429	next_pri = nice;
952		1430
953	void	1431	void
954	flush ()	1432	flush ()
955	PROTOTYPE:
956	CODE:	1433	CODE:
957	while (eio_nreqs ())	1434	while (eio_nreqs ())
958	{	1435	{
959	poll_wait ();	1436	poll_wait ();
960	poll_cb ();	1437	poll_cb ();
961	}	1438	}
962		1439
963	int	1440	int
964	poll()	1441	poll ()
965	PROTOTYPE:
966	CODE:	1442	CODE:
967	poll_wait ();	1443	poll_wait ();
968	RETVAL = poll_cb ();	1444	RETVAL = poll_cb ();
969	OUTPUT:	1445	OUTPUT:
970	RETVAL	1446	RETVAL
971		1447
972	int	1448	int
973	poll_fileno()	1449	poll_fileno ()
974	PROTOTYPE:
975	CODE:	1450	CODE:
976	RETVAL = respipe [0];	1451	RETVAL = s_epipe_fd (&respipe);
977	OUTPUT:	1452	OUTPUT:
978	RETVAL	1453	RETVAL
979		1454
980	int	1455	int
981	poll_cb(...)	1456	poll_cb (...)
982	PROTOTYPE:	1457	PROTOTYPE:
983	CODE:	1458	CODE:
984	RETVAL = poll_cb ();	1459	RETVAL = poll_cb ();
985	OUTPUT:	1460	OUTPUT:
986	RETVAL	1461	RETVAL
987		1462
988	void	1463	void
989	poll_wait()	1464	poll_wait ()
990	PROTOTYPE:
991	CODE:	1465	CODE:
992	poll_wait ();	1466	poll_wait ();
993		1467
994	int	1468	int
995	nreqs()	1469	nreqs ()
996	PROTOTYPE:
997	CODE:	1470	CODE:
998	RETVAL = eio_nreqs ();	1471	RETVAL = eio_nreqs ();
999	OUTPUT:	1472	OUTPUT:
1000	RETVAL	1473	RETVAL
1001		1474
1002	int	1475	int
1003	nready()	1476	nready ()
1004	PROTOTYPE:
1005	CODE:	1477	CODE:
1006	RETVAL = eio_nready ();	1478	RETVAL = eio_nready ();
1007	OUTPUT:	1479	OUTPUT:
1008	RETVAL	1480	RETVAL
1009		1481
1010	int	1482	int
1011	npending()	1483	npending ()
1012	PROTOTYPE:
1013	CODE:	1484	CODE:
1014	RETVAL = eio_npending ();	1485	RETVAL = eio_npending ();
1015	OUTPUT:	1486	OUTPUT:
1016	RETVAL	1487	RETVAL
1017		1488
1018	int	1489	int
1019	nthreads()	1490	nthreads ()
1020	PROTOTYPE:
1021	CODE:	1491	CODE:
1022	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1492	RETVAL = eio_nthreads ();
1023	RETVAL = started;
1024	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1025	OUTPUT:	1493	OUTPUT:
1026	RETVAL	1494	RETVAL
1027		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
1028	void _on_next_submit (SV *cb)	1618	void _on_next_submit (SV *cb)
1029	CODE:	1619	CODE:
1030	SvREFCNT_dec (on_next_submit);	1620	SvREFCNT_dec (on_next_submit);
1031	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1621	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1032		1622
…		…
1039	CODE:	1629	CODE:
1040	eio_cancel (req);	1630	eio_cancel (req);
1041		1631
1042	void	1632	void
1043	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1633	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1044	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
1045	SvREFCNT_dec (req->callback);	1643	SvREFCNT_dec (req->callback);
1046	req->callback = newSVsv (callback);	1644	req->callback = SvREFCNT_inc (cb_cv);
		1645	}
		1646	}
1047		1647
1048	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1648	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1049		1649
1050	void	1650	void
1051	add (aio_req grp, ...)	1651	add (aio_req grp, ...)
…		…
1083	AV *av;	1683	AV *av;
1084		1684
1085	grp->errorno = errno;	1685	grp->errorno = errno;
1086		1686
1087	av = newAV ();	1687	av = newAV ();
		1688	av_extend (av, items - 1);
1088		1689
1089	for (i = 1; i < items; ++i )	1690	for (i = 1; i < items; ++i )
1090	av_push (av, newSVsv (ST (i)));	1691	av_push (av, newSVsv (ST (i)));
1091		1692
1092	SvREFCNT_dec (grp->sv1);	1693	SvREFCNT_dec (grp->sv1);
…		…
1106	void	1707	void
1107	feed (aio_req grp, SV *callback=&PL_sv_undef)	1708	feed (aio_req grp, SV *callback=&PL_sv_undef)
1108	CODE:	1709	CODE:
1109	{	1710	{
1110	SvREFCNT_dec (grp->sv2);	1711	SvREFCNT_dec (grp->sv2);
1111	grp->sv2 = newSVsv (callback);	1712	grp->sv2 = newSVsv (callback);
		1713	grp->feed = aio_grp_feed;
1112		1714
1113	if (grp->int2 <= 0)	1715	if (grp->int2 <= 0)
1114	grp->int2 = 2;	1716	grp->int2 = 2;
1115		1717
1116	eio_grp_limit (grp, grp->int2);	1718	eio_grp_limit (grp, grp->int2);

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