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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.119 by root, Sun May 11 19:11:05 2008 UTC vs.
Revision 1.180 by root, Fri Feb 11 00:05:17 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
…		…
289	case EIO_LSTAT:	549	case EIO_LSTAT:
290	case EIO_FSTAT:	550	case EIO_FSTAT:
291	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	551	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
292	PL_laststatval = req->result;	552	PL_laststatval = req->result;
293	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	553	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
294	PUSHs (sv_2mortal (newSViv (req->result)));	554	PUSHs (sv_result);
295	break;	555	break;
296		556
297	case EIO_READ:	557	case EIO_READ:
		558	{
298	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));
299	*SvEND (req->sv2) = 0;	560	*SvEND (req->sv2) = 0;
300	PUSHs (sv_2mortal (newSViv (req->result)));	561	SvPOK_only (req->sv2);
		562	SvSETMAGIC (req->sv2);
		563	PUSHs (sv_result);
		564	}
301	break;	565	break;
302		566
303	case EIO_DUP2:	567	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
304	if (req->result > 0)	568	if (req->result > 0)
305	req->result = 0;	569	SvIV_set (sv_result, 0);
306	/* FALLTHROUGH */	570	/* FALLTHROUGH */
307		571
308	default:	572	default:
309	PUSHs (sv_2mortal (newSViv (req->result)));	573	PUSHs (sv_result);
310	break;	574	break;
311	}	575	}
312		576
313	errno = req->errorno;	577	errno = req->errorno;
314		578
315	PUTBACK;	579	PUTBACK;
316	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	580	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
317	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;
318		587
319	FREETMPS;	588	FREETMPS;
320	LEAVE;	589	LEAVE;
321		590
322	PUTBACK;	591	PUTBACK;
…		…
351	grp->sv2 = 0;	620	grp->sv2 = 0;
352		621
353	eio_grp_cancel (grp);	622	eio_grp_cancel (grp);
354	}	623	}
355		624
356	#ifdef USE_SOCKETS_AS_HANDLES
357	# define TO_SOCKET(x) (win32_get_osfhandle (x))
358	#else
359	# define TO_SOCKET(x) (x)
360	#endif
361
362	static void	625	static void
363	create_respipe (void)	626	create_respipe (void)
364	{	627	{
365	int old_readfd = respipe [0];
366
367	if (respipe [1] >= 0)
368	respipe_close (TO_SOCKET (respipe [1]));
369
370	#ifdef _WIN32
371	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
372	#else
373	if (pipe (respipe))	628	if (s_epipe_renew (&respipe))
374	#endif
375	croak ("unable to initialize result pipe");	629	croak ("IO::AIO: unable to initialize result pipe");
376
377	if (old_readfd >= 0)
378	{
379	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
380	croak ("unable to initialize result pipe(2)");
381
382	respipe_close (respipe [0]);
383	respipe [0] = old_readfd;
384	}
385
386	#ifdef _WIN32
387	int arg = 1;
388	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
389	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
390	#else
391	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
392	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
393	#endif
394	croak ("unable to initialize result pipe(3)");
395
396	respipe_osf [0] = TO_SOCKET (respipe [0]);
397	respipe_osf [1] = TO_SOCKET (respipe [1]);
398	}	630	}
399		631
400	static void poll_wait (void)	632	static void poll_wait (void)
401	{	633	{
402	fd_set rfd;
403
404	while (eio_nreqs ())	634	while (eio_nreqs ())
405	{	635	{
406	int size;	636	int size;
407		637
408	X_LOCK (reslock);	638	X_LOCK (reslock);
…		…
410	X_UNLOCK (reslock);	640	X_UNLOCK (reslock);
411		641
412	if (size)	642	if (size)
413	return;	643	return;
414		644
415	maybe_start_thread ();	645	etp_maybe_start_thread ();
416		646
417	FD_ZERO (&rfd);	647	s_epipe_wait (&respipe);
418	FD_SET (respipe [0], &rfd);
419
420	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421	}	648	}
422	}	649	}
423		650
424	static int poll_cb (void)	651	static int poll_cb (void)
425	{	652	{
426	int res;	653	for (;;)
427
428	do
429	{	654	{
430	res = eio_poll ();	655	int res = eio_poll ();
431		656
432	if (res > 0)	657	if (res > 0)
433	croak (0);	658	croak (0);
		659
		660	if (!max_outstanding || max_outstanding > eio_nreqs ())
		661	return res;
		662
		663	poll_wait ();
434	}	664	}
435	while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437	return res;
438	}	665	}
439		666
440	static void atfork_child (void)	667	static void atfork_child (void)
441	{	668	{
442	create_respipe ();	669	create_respipe ();
443	}	670	}
444		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
445	#define dREQ \	724	#define dREQ \
		725	SV *cb_cv; \
446	aio_req req; \	726	aio_req req; \
447	int req_pri = next_pri; \	727	int req_pri = next_pri; \
448	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	728	next_pri = EIO_PRI_DEFAULT; \
449	\	729	\
450	if (SvOK (callback) && !SvROK (callback)) \	730	cb_cv = get_cb (callback); \
451	croak ("callback must be undef or of reference type"); \
452	\	731	\
453	Newz (0, req, 1, eio_req); \	732	Newz (0, req, 1, eio_req); \
454	if (!req) \	733	if (!req) \
455	croak ("out of memory during eio_req allocation"); \	734	croak ("out of memory during eio_req allocation"); \
456	\	735	\
457	req->callback = newSVsv (callback); \	736	req->callback = SvREFCNT_inc (cb_cv); \
458	req->pri = req_pri	737	req->pri = req_pri
459		738
460	#define REQ_SEND \	739	#define REQ_SEND \
		740	PUTBACK; \
461	req_submit (req); \	741	req_submit (req); \
		742	SPAGAIN; \
462	\	743	\
463	if (GIMME_V != G_VOID) \	744	if (GIMME_V != G_VOID) \
464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	745	XPUSHs (req_sv (req, aio_req_stash));
465		746
466	MODULE = IO::AIO PACKAGE = IO::AIO	747	MODULE = IO::AIO PACKAGE = IO::AIO
467		748
468	PROTOTYPES: ENABLE	749	PROTOTYPES: ENABLE
469		750
470	BOOT:	751	BOOT:
471	{	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
472	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);
473		855
474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	856	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	857	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
479	#ifdef _WIN32
480	X_MUTEX_CHECK (wrklock);
481	X_MUTEX_CHECK (reslock);
482	X_MUTEX_CHECK (reqlock);
483	X_MUTEX_CHECK (reqwait);
484	X_MUTEX_CHECK (preadwritelock);
485	X_MUTEX_CHECK (readdirlock);
486		858
487	X_COND_CHECK (reqwait);	859	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
488	#else
489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
490	#endif
491		860
492	create_respipe ();	861	create_respipe ();
493		862
494	if (eio_init (want_poll, done_poll) < 0)	863	if (eio_init (want_poll, done_poll) < 0)
495	croak ("IO::AIO: unable to initialise eio library");	864	croak ("IO::AIO: unable to initialise eio library");
496		865
497	/* atfork child called in fifo order, so before eio's handler */	866	/* atfork child called in fifo order, so before eio's handler */
498	X_THREAD_ATFORK (0, 0, atfork_child);	867	X_THREAD_ATFORK (0, 0, atfork_child);
499	}	868	}
500		869
501	void	870	void
502	max_poll_reqs (int nreqs)	871	max_poll_reqs (int nreqs)
503	PROTOTYPE: $	872	PROTOTYPE: $
…		…
534	CODE:	903	CODE:
535	max_outstanding = maxreqs;	904	max_outstanding = maxreqs;
536		905
537	void	906	void
538	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	907	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $$$;$
540	PPCODE:	908	PPCODE:
541	{	909	{
542	dREQ;	910	dREQ;
543		911
544	req->type = EIO_OPEN;	912	req->type = EIO_OPEN;
…		…
550	REQ_SEND;	918	REQ_SEND;
551	}	919	}
552		920
553	void	921	void
554	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	922	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
555	PROTOTYPE: $;$
556	ALIAS:	923	ALIAS:
557	aio_fsync = EIO_FSYNC	924	aio_fsync = EIO_FSYNC
558	aio_fdatasync = EIO_FDATASYNC	925	aio_fdatasync = EIO_FDATASYNC
559	PPCODE:	926	PPCODE:
560	{	927	{
		928	int fd = s_fileno_croak (fh, 0);
561	dREQ;	929	dREQ;
562		930
563	req->type = ix;	931	req->type = ix;
564	req->sv1 = newSVsv (fh);	932	req->sv1 = newSVsv (fh);
565	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	933	req->int1 = fd;
566		934
567	REQ_SEND (req);	935	REQ_SEND (req);
568	}	936	}
569		937
570	void	938	void
		939	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		940	PPCODE:
		941	{
		942	int fd = s_fileno_croak (fh, 0);
		943	dREQ;
		944
		945	req->type = EIO_SYNC_FILE_RANGE;
		946	req->sv1 = newSVsv (fh);
		947	req->int1 = fd;
		948	req->offs = offset;
		949	req->size = nbytes;
		950	req->int2 = flags;
		951
		952	REQ_SEND (req);
		953	}
		954
		955	void
571	aio_close (SV *fh, SV *callback=&PL_sv_undef)	956	aio_close (SV *fh, SV *callback=&PL_sv_undef)
572	PROTOTYPE: $;$
573	PPCODE:	957	PPCODE:
574	{	958	{
575	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	959	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		960	int fd = s_fileno_croak (fh, 0);
576	dREQ;	961	dREQ;
577		962
578	if (close_pipe < 0)	963	if (close_pipe < 0)
579	{	964	{
580	int pipefd [2];	965	int pipefd [2];
…		…
588	}	973	}
589		974
590	req->type = EIO_DUP2;	975	req->type = EIO_DUP2;
591	req->int1 = close_pipe;	976	req->int1 = close_pipe;
592	req->sv2 = newSVsv (fh);	977	req->sv2 = newSVsv (fh);
593	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	978	req->int2 = fd;
594		979
595	REQ_SEND (req);	980	REQ_SEND (req);
596	}	981	}
597		982
598	void	983	void
599	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	984	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
600	ALIAS:	985	ALIAS:
601	aio_read = EIO_READ	986	aio_read = EIO_READ
602	aio_write = EIO_WRITE	987	aio_write = EIO_WRITE
603	PROTOTYPE: $$$$$;$
604	PPCODE:	988	PPCODE:
605	{	989	{
606	STRLEN svlen;	990	STRLEN svlen;
		991	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607	char *svptr = SvPVbyte (data, svlen);	992	char *svptr = SvPVbyte (data, svlen);
608	UV len = SvUV (length);	993	UV len = SvUV (length);
609
610	SvUPGRADE (data, SVt_PV);
611	SvPOK_on (data);
612		994
613	if (dataoffset < 0)	995	if (dataoffset < 0)
614	dataoffset += svlen;	996	dataoffset += svlen;
615		997
616	if (dataoffset < 0 || dataoffset > svlen)	998	if (dataoffset < 0 || dataoffset > svlen)
…		…
622	if (!SvOK (length) || len + dataoffset > svlen)	1004	if (!SvOK (length) || len + dataoffset > svlen)
623	len = svlen - dataoffset;	1005	len = svlen - dataoffset;
624	}	1006	}
625	else	1007	else
626	{	1008	{
627	/* read: grow scalar as necessary */	1009	/* read: check type and grow scalar as necessary */
		1010	SvUPGRADE (data, SVt_PV);
628	svptr = SvGROW (data, len + dataoffset + 1);	1011	svptr = SvGROW (data, len + dataoffset + 1);
629	}	1012	}
630		1013
631	if (len < 0)
632	croak ("length must not be negative");
633
634	{	1014	{
635	dREQ;	1015	dREQ;
636		1016
637	req->type = ix;	1017	req->type = ix;
638	req->sv1 = newSVsv (fh);	1018	req->sv1 = newSVsv (fh);
639	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1019	req->int1 = fd;
640	: IoOFP (sv_2io (fh)));
641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1020	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642	req->size = len;	1021	req->size = len;
643	req->sv2 = SvREFCNT_inc (data);	1022	req->sv2 = SvREFCNT_inc (data);
644	req->ptr2 = (char *)svptr + dataoffset;	1023	req->ptr2 = (char *)svptr + dataoffset;
645	req->stroffset = dataoffset;	1024	req->stroffset = dataoffset;
…		…
654	}	1033	}
655	}	1034	}
656		1035
657	void	1036	void
658	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1037	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
659	PROTOTYPE: $$;$
660	PPCODE:	1038	PPCODE:
661	{	1039	{
662	SV *data;	1040	SV *data;
663	dREQ;	1041	dREQ;
664		1042
…		…
668		1046
669	REQ_SEND;	1047	REQ_SEND;
670	}	1048	}
671		1049
672	void	1050	void
673	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1051	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
674	PROTOTYPE: $$$$;$
675	PPCODE:	1052	PPCODE:
676	{	1053	{
		1054	int ifd = s_fileno_croak (in_fh , 0);
		1055	int ofd = s_fileno_croak (out_fh, 1);
677	dREQ;	1056	dREQ;
678		1057
679	req->type = EIO_SENDFILE;	1058	req->type = EIO_SENDFILE;
680	req->sv1 = newSVsv (out_fh);	1059	req->sv1 = newSVsv (out_fh);
681	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1060	req->int1 = ofd;
682	req->sv2 = newSVsv (in_fh);	1061	req->sv2 = newSVsv (in_fh);
683	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1062	req->int2 = ifd;
684	req->offs = SvVAL64 (in_offset);	1063	req->offs = in_offset;
685	req->size = length;	1064	req->size = length;
686		1065
687	REQ_SEND;	1066	REQ_SEND;
688	}	1067	}
689		1068
690	void	1069	void
691	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1070	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
692	PROTOTYPE: $$$;$
693	PPCODE:	1071	PPCODE:
694	{	1072	{
		1073	int fd = s_fileno_croak (fh, 0);
695	dREQ;	1074	dREQ;
696		1075
697	req->type = EIO_READAHEAD;	1076	req->type = EIO_READAHEAD;
698	req->sv1 = newSVsv (fh);	1077	req->sv1 = newSVsv (fh);
699	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1078	req->int1 = fd;
700	req->offs = SvVAL64 (offset);	1079	req->offs = offset;
701	req->size = length;	1080	req->size = length;
702		1081
703	REQ_SEND;	1082	REQ_SEND;
704	}	1083	}
705		1084
706	void	1085	void
707	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1086	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
708	ALIAS:	1087	ALIAS:
709	aio_stat = EIO_STAT	1088	aio_stat = EIO_STAT
710	aio_lstat = EIO_LSTAT	1089	aio_lstat = EIO_LSTAT
		1090	aio_statvfs = EIO_STATVFS
711	PPCODE:	1091	PPCODE:
712	{	1092	{
713	dREQ;	1093	dREQ;
714		1094
715	req->sv1 = newSVsv (fh_or_path);	1095	req->sv1 = newSVsv (fh_or_path);
…		…
719	req->type = ix;	1099	req->type = ix;
720	req->ptr1 = SvPVbyte_nolen (req->sv1);	1100	req->ptr1 = SvPVbyte_nolen (req->sv1);
721	}	1101	}
722	else	1102	else
723	{	1103	{
724	req->type = EIO_FSTAT;	1104	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1105	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726	}	1106	}
727		1107
728	REQ_SEND;	1108	REQ_SEND;
729	}	1109	}
		1110
		1111	UV
		1112	major (UV dev)
		1113	ALIAS:
		1114	minor = 1
		1115	CODE:
		1116	RETVAL = ix ? major (dev) : minor (dev);
		1117	OUTPUT:
		1118	RETVAL
		1119
		1120	UV
		1121	makedev (UV maj, UV min)
		1122	CODE:
		1123	RETVAL = makedev (maj, min);
		1124	OUTPUT:
		1125	RETVAL
730		1126
731	void	1127	void
732	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1128	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
733	PPCODE:	1129	PPCODE:
734	{	1130	{
…		…
787	req->int2 = mode;	1183	req->int2 = mode;
788	req->sv1 = newSVsv (fh_or_path);	1184	req->sv1 = newSVsv (fh_or_path);
789		1185
790	if (SvPOK (req->sv1))	1186	if (SvPOK (req->sv1))
791	{	1187	{
792	req->type = EIO_FCHMOD;	1188	req->type = ix;
793	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1189	req->ptr1 = SvPVbyte_nolen (req->sv1);
794	}	1190	}
795	else	1191	else
796	{	1192	{
797	req->type = ix;	1193	req->type = EIO_FCHMOD;
798	req->ptr1 = SvPVbyte_nolen (req->sv1);	1194	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
799	}	1195	}
800		1196
801	REQ_SEND;	1197	REQ_SEND;
802	}	1198	}
803		1199
…		…
824		1220
825	REQ_SEND;	1221	REQ_SEND;
826	}	1222	}
827		1223
828	void	1224	void
		1225	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1226	PPCODE:
		1227	{
		1228	dREQ;
		1229
		1230	req->type = EIO_READDIR;
		1231	req->sv1 = newSVsv (pathname);
		1232	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1233	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1234
		1235	if (flags & EIO_READDIR_DENTS)
		1236	req->int1 |= EIO_READDIR_CUSTOM2;
		1237
		1238	REQ_SEND;
		1239	}
		1240
		1241	void
829	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1242	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
830	ALIAS:	1243	ALIAS:
831	aio_unlink = EIO_UNLINK	1244	aio_unlink = EIO_UNLINK
832	aio_rmdir = EIO_RMDIR	1245	aio_rmdir = EIO_RMDIR
833	aio_readdir = EIO_READDIR	1246	aio_readdir = EIO_READDIR
…		…
875		1288
876	REQ_SEND;	1289	REQ_SEND;
877	}	1290	}
878		1291
879	void	1292	void
		1293	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1294	ALIAS:
		1295	aio_mtouch = EIO_MTOUCH
		1296	aio_msync = EIO_MSYNC
		1297	PPCODE:
		1298	{
		1299	STRLEN svlen;
		1300	char *svptr = SvPVbyte (data, svlen);
		1301	UV len = SvUV (length);
		1302
		1303	if (offset < 0)
		1304	offset += svlen;
		1305
		1306	if (offset < 0 || offset > svlen)
		1307	croak ("offset outside of scalar");
		1308
		1309	if (!SvOK (length) || len + offset > svlen)
		1310	len = svlen - offset;
		1311
		1312	{
		1313	dREQ;
		1314
		1315	req->type = ix;
		1316	req->sv2 = SvREFCNT_inc (data);
		1317	req->ptr2 = (char *)svptr + offset;
		1318	req->size = len;
		1319	req->int1 = flags;
		1320
		1321	REQ_SEND;
		1322	}
		1323	}
		1324
		1325	void
		1326	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1327	PPCODE:
		1328	{
		1329	STRLEN svlen;
		1330	char *svptr = SvPVbyte (data, svlen);
		1331	UV len = SvUV (length);
		1332
		1333	if (offset < 0)
		1334	offset += svlen;
		1335
		1336	if (offset < 0 || offset > svlen)
		1337	croak ("offset outside of scalar");
		1338
		1339	if (!SvOK (length) || len + offset > svlen)
		1340	len = svlen - offset;
		1341
		1342	{
		1343	dREQ;
		1344
		1345	req->type = EIO_MLOCK;
		1346	req->sv2 = SvREFCNT_inc (data);
		1347	req->ptr2 = (char *)svptr + offset;
		1348	req->size = len;
		1349
		1350	REQ_SEND;
		1351	}
		1352	}
		1353
		1354	void
		1355	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1356	PPCODE:
		1357	{
		1358	dREQ;
		1359
		1360	req->type = EIO_MLOCKALL;
		1361	req->int1 = flags;
		1362
		1363	REQ_SEND;
		1364	}
		1365
		1366	void
880	aio_busy (double delay, SV *callback=&PL_sv_undef)	1367	aio_busy (double delay, SV *callback=&PL_sv_undef)
881	PPCODE:	1368	PPCODE:
882	{	1369	{
883	dREQ;	1370	dREQ;
884		1371
…		…
888	REQ_SEND;	1375	REQ_SEND;
889	}	1376	}
890		1377
891	void	1378	void
892	aio_group (SV *callback=&PL_sv_undef)	1379	aio_group (SV *callback=&PL_sv_undef)
893	PROTOTYPE: ;$
894	PPCODE:	1380	PPCODE:
895	{	1381	{
896	dREQ;	1382	dREQ;
897		1383
898	req->type = EIO_GROUP;	1384	req->type = EIO_GROUP;
899		1385
900	eio_submit (req);	1386	req_submit (req);
901	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1387	XPUSHs (req_sv (req, aio_grp_stash));
902	}	1388	}
903		1389
904	void	1390	void
905	aio_nop (SV *callback=&PL_sv_undef)	1391	aio_nop (SV *callback=&PL_sv_undef)
906	ALIAS:	1392	ALIAS:
…		…
915	REQ_SEND;	1401	REQ_SEND;
916	}	1402	}
917		1403
918	int	1404	int
919	aioreq_pri (int pri = 0)	1405	aioreq_pri (int pri = 0)
920	PROTOTYPE: ;$
921	CODE:	1406	CODE:
922	RETVAL = next_pri - EIO_PRI_BIAS;	1407	RETVAL = next_pri;
923	if (items > 0)	1408	if (items > 0)
924	{	1409	{
925	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1410	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
926	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1411	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
927	next_pri = pri + EIO_PRI_BIAS;	1412	next_pri = pri;
928	}	1413	}
929	OUTPUT:	1414	OUTPUT:
930	RETVAL	1415	RETVAL
931		1416
932	void	1417	void
933	aioreq_nice (int nice = 0)	1418	aioreq_nice (int nice = 0)
934	CODE:	1419	CODE:
935	nice = next_pri - nice;	1420	nice = next_pri - nice;
936	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1421	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
937	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1422	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938	next_pri = nice + EIO_PRI_BIAS;	1423	next_pri = nice;
939		1424
940	void	1425	void
941	flush ()	1426	flush ()
942	PROTOTYPE:
943	CODE:	1427	CODE:
944	while (eio_nreqs ())	1428	while (eio_nreqs ())
945	{	1429	{
946	poll_wait ();	1430	poll_wait ();
947	poll_cb ();	1431	poll_cb ();
948	}	1432	}
949		1433
950	int	1434	int
951	poll()	1435	poll ()
952	PROTOTYPE:
953	CODE:	1436	CODE:
954	poll_wait ();	1437	poll_wait ();
955	RETVAL = poll_cb ();	1438	RETVAL = poll_cb ();
956	OUTPUT:	1439	OUTPUT:
957	RETVAL	1440	RETVAL
958		1441
959	int	1442	int
960	poll_fileno()	1443	poll_fileno ()
961	PROTOTYPE:
962	CODE:	1444	CODE:
963	RETVAL = respipe [0];	1445	RETVAL = s_epipe_fd (&respipe);
964	OUTPUT:	1446	OUTPUT:
965	RETVAL	1447	RETVAL
966		1448
967	int	1449	int
968	poll_cb(...)	1450	poll_cb (...)
969	PROTOTYPE:	1451	PROTOTYPE:
970	CODE:	1452	CODE:
971	RETVAL = poll_cb ();	1453	RETVAL = poll_cb ();
972	OUTPUT:	1454	OUTPUT:
973	RETVAL	1455	RETVAL
974		1456
975	void	1457	void
976	poll_wait()	1458	poll_wait ()
977	PROTOTYPE:
978	CODE:	1459	CODE:
979	poll_wait ();	1460	poll_wait ();
980		1461
981	int	1462	int
982	nreqs()	1463	nreqs ()
983	PROTOTYPE:
984	CODE:	1464	CODE:
985	RETVAL = eio_nreqs ();	1465	RETVAL = eio_nreqs ();
986	OUTPUT:	1466	OUTPUT:
987	RETVAL	1467	RETVAL
988		1468
989	int	1469	int
990	nready()	1470	nready ()
991	PROTOTYPE:
992	CODE:	1471	CODE:
993	RETVAL = eio_nready ();	1472	RETVAL = eio_nready ();
994	OUTPUT:	1473	OUTPUT:
995	RETVAL	1474	RETVAL
996		1475
997	int	1476	int
998	npending()	1477	npending ()
999	PROTOTYPE:
1000	CODE:	1478	CODE:
1001	RETVAL = eio_npending ();	1479	RETVAL = eio_npending ();
1002	OUTPUT:	1480	OUTPUT:
1003	RETVAL	1481	RETVAL
1004		1482
1005	int	1483	int
1006	nthreads()	1484	nthreads ()
1007	PROTOTYPE:
1008	CODE:	1485	CODE:
1009	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1486	RETVAL = eio_nthreads ();
1010	RETVAL = started;
1011	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012	OUTPUT:	1487	OUTPUT:
1013	RETVAL	1488	RETVAL
1014		1489
		1490	int
		1491	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1492	CODE:
		1493	RETVAL = posix_fadvise (fh, offset, length, advice);
		1494	OUTPUT:
		1495	RETVAL
		1496
		1497	ssize_t
		1498	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1499	CODE:
		1500	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1501	OUTPUT:
		1502	RETVAL
		1503
		1504	void
		1505	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1506	PPCODE:
		1507	sv_unmagic (scalar, MMAP_MAGIC);
		1508	{
		1509	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1510	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1511	if (addr == (void *)-1)
		1512	XSRETURN_NO;
		1513
		1514	sv_force_normal (scalar);
		1515
		1516	/* we store the length in mg_obj, as namlen is I32 :/ */
		1517	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1518	->mg_obj = (SV *)length;
		1519
		1520	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1521
		1522	if (!(prot & PROT_WRITE))
		1523	SvREADONLY_on (scalar);
		1524
		1525	if (SvLEN (scalar))
		1526	Safefree (SvPVX (scalar));
		1527
		1528	SvPVX (scalar) = (char *)addr;
		1529	SvCUR_set (scalar, length);
		1530	SvLEN_set (scalar, 0);
		1531	SvPOK_only (scalar);
		1532
		1533	XSRETURN_YES;
		1534	}
		1535
		1536	void
		1537	munmap (SV *scalar)
		1538	CODE:
		1539	sv_unmagic (scalar, MMAP_MAGIC);
		1540
		1541	int
		1542	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1543	ALIAS:
		1544	mprotect = 1
		1545	CODE:
		1546	{
		1547	STRLEN svlen;
		1548	void *addr = SvPVbyte (scalar, svlen);
		1549	size_t len = SvUV (length);
		1550
		1551	if (offset < 0)
		1552	offset += svlen;
		1553
		1554	if (offset < 0 || offset > svlen)
		1555	croak ("offset outside of scalar");
		1556
		1557	if (!SvOK (length) || len + offset > svlen)
		1558	len = svlen - offset;
		1559
		1560	addr = (void *)(((intptr_t)addr) + offset);
		1561	eio_page_align (&addr, &len);
		1562
		1563	switch (ix)
		1564	{
		1565	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1566	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1567	}
		1568	}
		1569	OUTPUT:
		1570	RETVAL
		1571
		1572	int
		1573	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1574	CODE:
		1575	{
		1576	STRLEN svlen;
		1577	void *addr = SvPVbyte (scalar, svlen);
		1578	size_t len = SvUV (length);
		1579
		1580	if (offset < 0)
		1581	offset += svlen;
		1582
		1583	if (offset < 0 || offset > svlen)
		1584	croak ("offset outside of scalar");
		1585
		1586	if (!SvOK (length) || len + offset > svlen)
		1587	len = svlen - offset;
		1588
		1589	addr = (void *)(((intptr_t)addr) + offset);
		1590	eio_page_align (&addr, &len);
		1591	#if _POSIX_MEMLOCK_RANGE
		1592	RETVAL = munlock (addr, len);
		1593	#else
		1594	RETVAL = ((errno = ENOSYS), -1);
		1595	#endif
		1596	}
		1597	OUTPUT:
		1598	RETVAL
		1599
		1600	int
		1601	munlockall ()
		1602	CODE:
		1603	#if _POSIX_MEMLOCK
		1604	munlockall ();
		1605	#else
		1606	RETVAL = -1;
		1607	errno = ENOSYS;
		1608	#endif
		1609	OUTPUT:
		1610	RETVAL
		1611
1015	void _on_next_submit (SV *cb)	1612	void _on_next_submit (SV *cb)
1016	CODE:	1613	CODE:
1017	SvREFCNT_dec (on_next_submit);	1614	SvREFCNT_dec (on_next_submit);
1018	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1615	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1019		1616
…		…
1026	CODE:	1623	CODE:
1027	eio_cancel (req);	1624	eio_cancel (req);
1028		1625
1029	void	1626	void
1030	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1627	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031	CODE:	1628	PPCODE:
		1629	{
		1630	if (GIMME_V != G_VOID)
		1631	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1632
		1633	if (items > 1)
		1634	{
		1635	SV *cb_cv =get_cb (callback);
		1636
1032	SvREFCNT_dec (req->callback);	1637	SvREFCNT_dec (req->callback);
1033	req->callback = newSVsv (callback);	1638	req->callback = SvREFCNT_inc (cb_cv);
		1639	}
		1640	}
1034		1641
1035	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1642	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036		1643
1037	void	1644	void
1038	add (aio_req grp, ...)	1645	add (aio_req grp, ...)
…		…
1070	AV *av;	1677	AV *av;
1071		1678
1072	grp->errorno = errno;	1679	grp->errorno = errno;
1073		1680
1074	av = newAV ();	1681	av = newAV ();
		1682	av_extend (av, items - 1);
1075		1683
1076	for (i = 1; i < items; ++i )	1684	for (i = 1; i < items; ++i )
1077	av_push (av, newSVsv (ST (i)));	1685	av_push (av, newSVsv (ST (i)));
1078		1686
1079	SvREFCNT_dec (grp->sv1);	1687	SvREFCNT_dec (grp->sv1);
…		…
1093	void	1701	void
1094	feed (aio_req grp, SV *callback=&PL_sv_undef)	1702	feed (aio_req grp, SV *callback=&PL_sv_undef)
1095	CODE:	1703	CODE:
1096	{	1704	{
1097	SvREFCNT_dec (grp->sv2);	1705	SvREFCNT_dec (grp->sv2);
1098	grp->sv2 = newSVsv (callback);	1706	grp->sv2 = newSVsv (callback);
		1707	grp->feed = aio_grp_feed;
1099		1708
1100	if (grp->int2 <= 0)	1709	if (grp->int2 <= 0)
1101	grp->int2 = 2;	1710	grp->int2 = 2;
1102		1711
1103	eio_grp_limit (grp, grp->int2);	1712	eio_grp_limit (grp, grp->int2);

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