[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.120 by root, Sun May 11 19:17:09 2008 UTC vs.
Revision 1.169 by root, Wed Aug 4 16:06:54 2010 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_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;
		120
		121	#define EIO_NO_WRAPPERS 1
90		122
91	#include "libeio/eio.h"	123	#include "libeio/eio.h"
		124
		125	#ifndef POSIX_FADV_NORMAL
		126	# define POSIX_FADV_NORMAL 0
		127	# define NO_FADVISE 1
		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	#ifndef POSIX_MADV_NORMAL
		146	# define POSIX_MADV_NORMAL 0
		147	# define NO_MADVISE 1
		148	#endif
		149	#ifndef POSIX_MADV_SEQUENTIAL
		150	# define POSIX_MADV_SEQUENTIAL 0
		151	#endif
		152	#ifndef POSIX_MADV_RANDOM
		153	# define POSIX_MADV_RANDOM 0
		154	#endif
		155	#ifndef POSIX_MADV_WILLNEED
		156	# define POSIX_MADV_WILLNEED 0
		157	#endif
		158	#ifndef POSIX_MADV_DONTNEED
		159	# define POSIX_MADV_DONTNEED 0
		160	#endif
		161
		162	#ifndef ST_NODEV
		163	# define ST_NODEV 0
		164	#endif
		165	#ifndef ST_NOEXEC
		166	# define ST_NOEXEC 0
		167	#endif
		168	#ifndef ST_SYNCHRONOUS
		169	# define ST_SYNCHRONOUS 0
		170	#endif
		171	#ifndef ST_MANDLOCK
		172	# define ST_MANDLOCK 0
		173	#endif
		174	#ifndef ST_WRITE
		175	# define ST_WRITE 0
		176	#endif
		177	#ifndef ST_APPEND
		178	# define ST_APPEND 0
		179	#endif
		180	#ifndef ST_IMMUTABLE
		181	# define ST_IMMUTABLE 0
		182	#endif
		183	#ifndef ST_NOATIME
		184	# define ST_NOATIME 0
		185	#endif
		186	#ifndef ST_NODIRATIME
		187	# define ST_NODIRATIME 0
		188	#endif
		189	#ifndef ST_RELATIME
		190	# define ST_RELATIME 0
		191	#endif
		192
		193	#ifndef MCL_CURRENT
		194	# define MCL_CURRENT 0
		195	#endif
		196	#ifndef MCL_FUTURE
		197	# define MCL_FUTURE 0
		198	#endif
		199
		200	#ifndef MAP_ANONYMOUS
		201	# ifdef MAP_ANON
		202	# define MAP_ANONYMOUS MAP_ANON
		203	# else
		204	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		205	# endif
		206	#endif
		207	#ifndef MAP_HUGETLB
		208	# define MAP_HUGETLB 0
		209	#endif
		210	#ifndef MAP_LOCKED
		211	# define MAP_LOCKED 0
		212	#endif
		213	#ifndef MAP_NORESERVE
		214	# define MAP_NORESERVE 0
		215	#endif
		216	#ifndef MAP_POPULATE
		217	# define MAP_POPULATE 0
		218	#endif
		219	#ifndef MAP_NONBLOCK
		220	# define MAP_NONBLOCK 0
		221	#endif
		222
		223	#ifndef PAGESIZE
		224	# define PAGESIZE sysconf (_SC_PAGESIZE)
		225	#endif
92		226
93	static int req_invoke (eio_req *req);	227	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	228	#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);	229	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	230	#define EIO_DESTROY(req) req_destroy (req)
99		231
100	enum {	232	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	233	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
105		237
106	typedef eio_req *aio_req;	238	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	239	typedef eio_req *aio_req_ornot;
108		240
109	static SV *on_next_submit;	241	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	242	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	243	static int max_outstanding;
112		244
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	245	static s_epipe respipe;
114		246
115	static void req_destroy (aio_req req);	247	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	248	static void req_cancel (aio_req req);
117		249
118	static void want_poll (void)	250	static void want_poll (void)
119	{	251	{
120	/* write a dummy byte to the pipe so fh becomes ready */	252	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	253	s_epipe_signal (&respipe);
122	}	254	}
123		255
124	static void done_poll (void)	256	static void done_poll (void)
125	{	257	{
126	/* read any signals sent by the worker threads */	258	/* read any signals sent by the worker threads */
127	char buf [4];	259	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	260	}
131		261
132	/* must be called at most once */	262	/* must be called at most once */
133	static SV req_sv (aio_req req, const char klass)	263	static SV req_sv (aio_req req, HV stash)
134	{	264	{
135	if (!req->self)	265	if (!req->self)
136	{	266	{
137	req->self = (SV *)newHV ();	267	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	268	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	269	}
140		270
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	271	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	272	}
143		273
144	static aio_req SvAIO_REQ (SV *sv)	274	static aio_req SvAIO_REQ (SV *sv)
145	{	275	{
146	MAGIC *mg;	276	MAGIC *mg;
147		277
148	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	278	if (!SvROK (sv)
		279	\|\| (SvSTASH (SvRV (sv)) != aio_grp_stash
		280	&& SvSTASH (SvRV (sv)) != aio_req_stash
		281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	282	croak ("object of class IO::AIO::REQ expected");
150		283
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		285
153	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	287	}
…		…
160	dSP;	293	dSP;
161		294
162	ENTER;	295	ENTER;
163	SAVETMPS;	296	SAVETMPS;
164	PUSHMARK (SP);	297	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	298	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	299	PUTBACK;
167	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);	300	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);
168	SPAGAIN;	301	SPAGAIN;
169	FREETMPS;	302	FREETMPS;
170	LEAVE;	303	LEAVE;
…		…
173		306
174	static void req_submit (eio_req *req)	307	static void req_submit (eio_req *req)
175	{	308	{
176	eio_submit (req);	309	eio_submit (req);
177		310
178	if (on_next_submit)	311	if (expect_false (on_next_submit))
179	{	312	{
180	dSP;	313	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	314	SV *cb = sv_2mortal (on_next_submit);
182		315
183	on_next_submit = 0;	316	on_next_submit = 0;
…		…
188	}	321	}
189	}	322	}
190		323
191	static int req_invoke (eio_req *req)	324	static int req_invoke (eio_req *req)
192	{	325	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	326	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	327	SvREADONLY_off (req->sv2);
197		328
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	329	if (!EIO_CANCELLED (req) && req->callback)
199	{	330	{
		331	dSP;
		332	static SV sv_result_cache; / caches the result integer SV */
		333	SV *sv_result;
		334
200	ENTER;	335	ENTER;
201	SAVETMPS;	336	SAVETMPS;
202	PUSHMARK (SP);	337	PUSHMARK (SP);
203	EXTEND (SP, 1);	338	EXTEND (SP, 1);
		339
		340	/* do not recreate the result IV from scratch each time */
		341	if (expect_true (sv_result_cache))
		342	{
		343	sv_result = sv_result_cache; sv_result_cache = 0;
		344	SvIV_set (sv_result, req->result);
		345	}
		346	else
		347	{
		348	sv_result = newSViv (req->result);
		349	SvREADONLY_on (sv_result);
		350	}
204		351
205	switch (req->type)	352	switch (req->type)
206	{	353	{
207	case EIO_READDIR:	354	case EIO_READDIR:
208	{	355	{
209	SV *rv = &PL_sv_undef;	356	SV *rv = &PL_sv_undef;
210		357
211	if (req->result >= 0)	358	if (req->result >= 0)
212	{	359	{
213	int i;	360	int i;
214	char *buf = req->ptr2;	361	char names = (char )req->ptr2;
		362	eio_dirent ent = (eio_dirent )req->ptr1; /* might be 0 */
215	AV *av = newAV ();	363	AV *av = newAV ();
216		364
217	av_extend (av, req->result - 1);	365	av_extend (av, req->result - 1);
218		366
219	for (i = 0; i < req->result; ++i)	367	for (i = 0; i < req->result; ++i)
220	{	368	{
221	SV *sv = newSVpv (buf, 0);	369	if (req->int1 & EIO_READDIR_DENTS)
		370	{
		371	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		372
		373	if (req->int1 & EIO_READDIR_CUSTOM2)
		374	{
		375	static SV sv_type [EIO_DT_MAX + 1]; / type sv cache */
		376	AV *avent = newAV ();
		377
		378	av_extend (avent, 2);
		379
		380	if (!sv_type [ent->type])
		381	{
		382	sv_type [ent->type] = newSViv (ent->type);
		383	SvREADONLY_on (sv_type [ent->type]);
		384	}
		385
		386	av_store (avent, 0, namesv);
		387	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		388	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		389
		390	av_store (av, i, newRV_noinc ((SV *)avent));
		391	}
		392	else
223	av_store (av, i, sv);	393	av_store (av, i, namesv);
		394
		395	++ent;
		396	}
		397	else
		398	{
		399	SV *name = newSVpv (names, 0);
		400	av_store (av, i, name);
224	buf += SvCUR (sv) + 1;	401	names += SvCUR (name) + 1;
		402	}
225	}	403	}
226		404
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	405	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	406	}
229		407
230	PUSHs (rv);	408	PUSHs (rv);
		409
		410	if (req->int1 & EIO_READDIR_CUSTOM1)
		411	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 \| EIO_READDIR_CUSTOM2))));
231	}	412	}
232	break;	413	break;
233		414
234	case EIO_OPEN:	415	case EIO_OPEN:
235	{	416	{
…		…
241	GV gv = (GV )sv_newmortal ();	422	GV gv = (GV )sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);	423	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);
243	char sym [64];	424	char sym [64];
244	int symlen;	425	int symlen;
245		426
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	427	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	428	gv_init (gv, aio_stash, sym, symlen, 0);
248		429
249	symlen = snprintf (	430	symlen = snprintf (
250	sym,	431	sym,
251	sizeof (sym),	432	sizeof (sym),
252	"%s&=%d",	433	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	434	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	435	(int)req->result
255	);	436	);
256		437
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	438	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	439	fh = (SV *)gv;
259	}	440	}
260		441
261	PUSHs (fh);	442	PUSHs (fh);
262	}	443	}
		444	break;
		445
		446	case EIO_STATVFS:
		447	case EIO_FSTATVFS:
		448	{
		449	SV *rv = &PL_sv_undef;
		450
		451	if (req->result >= 0)
		452	{
		453	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		454	HV *hv = newHV ();
		455
		456	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		457
		458	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		459	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		460	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		461	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		462	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		463	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		464	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		465	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		466	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		467	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		468	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		469	}
		470
		471	PUSHs (rv);
		472	}
		473
263	break;	474	break;
264		475
265	case EIO_GROUP:	476	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	477	req->int1 = 2; /* mark group as finished */
267		478
…		…
289	case EIO_LSTAT:	500	case EIO_LSTAT:
290	case EIO_FSTAT:	501	case EIO_FSTAT:
291	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	502	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
292	PL_laststatval = req->result;	503	PL_laststatval = req->result;
293	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);	504	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);
294	PUSHs (sv_2mortal (newSViv (req->result)));	505	PUSHs (sv_result);
295	break;	506	break;
296		507
297	case EIO_READ:	508	case EIO_READ:
		509	{
298	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	510	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
299	*SvEND (req->sv2) = 0;	511	*SvEND (req->sv2) = 0;
300	PUSHs (sv_2mortal (newSViv (req->result)));	512	SvPOK_only (req->sv2);
		513	SvSETMAGIC (req->sv2);
		514	PUSHs (sv_result);
		515	}
301	break;	516	break;
302		517
303	case EIO_DUP2:	518	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
304	if (req->result > 0)	519	if (req->result > 0)
305	req->result = 0;	520	SvIV_set (sv_result, 0);
306	/* FALLTHROUGH */	521	/* FALLTHROUGH */
307		522
308	default:	523	default:
309	PUSHs (sv_2mortal (newSViv (req->result)));	524	PUSHs (sv_result);
310	break;	525	break;
311	}	526	}
312		527
313	errno = req->errorno;	528	errno = req->errorno;
314		529
315	PUTBACK;	530	PUTBACK;
316	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);	531	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);
317	SPAGAIN;	532	SPAGAIN;
		533
		534	if (expect_false (SvREFCNT (sv_result) != 1 \|\| sv_result_cache))
		535	SvREFCNT_dec (sv_result);
		536	else
		537	sv_result_cache = sv_result;
318		538
319	FREETMPS;	539	FREETMPS;
320	LEAVE;	540	LEAVE;
321		541
322	PUTBACK;	542	PUTBACK;
…		…
351	grp->sv2 = 0;	571	grp->sv2 = 0;
352		572
353	eio_grp_cancel (grp);	573	eio_grp_cancel (grp);
354	}	574	}
355		575
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	576	static void
363	create_respipe (void)	577	create_respipe (void)
364	{	578	{
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))	579	if (s_epipe_renew (&respipe))
374	#endif
375	croak ("unable to initialize result pipe");	580	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	}	581	}
399		582
400	static void poll_wait (void)	583	static void poll_wait (void)
401	{	584	{
402	fd_set rfd;
403
404	while (eio_nreqs ())	585	while (eio_nreqs ())
405	{	586	{
406	int size;	587	int size;
407		588
408	X_LOCK (reslock);	589	X_LOCK (reslock);
…		…
410	X_UNLOCK (reslock);	591	X_UNLOCK (reslock);
411		592
412	if (size)	593	if (size)
413	return;	594	return;
414		595
415	maybe_start_thread ();	596	etp_maybe_start_thread ();
416		597
417	FD_ZERO (&rfd);	598	s_epipe_wait (&respipe);
418	FD_SET (respipe [0], &rfd);
419
420	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421	}	599	}
422	}	600	}
423		601
424	static int poll_cb (void)	602	static int poll_cb (void)
425	{	603	{
426	int res;	604	for (;;)
427
428	do
429	{	605	{
430	res = eio_poll ();	606	int res = eio_poll ();
431		607
432	if (res > 0)	608	if (res > 0)
433	croak (0);	609	croak (0);
		610
		611	if (!max_outstanding \|\| max_outstanding > eio_nreqs ())
		612	return res;
		613
		614	poll_wait ();
434	}	615	}
435	while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437	return res;
438	}	616	}
439		617
440	static void atfork_child (void)	618	static void atfork_child (void)
441	{	619	{
442	create_respipe ();	620	create_respipe ();
443	}	621	}
444		622
		623	/*****************************************************************************/
		624
		625	#if !_POSIX_MAPPED_FILES
		626	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		627	# define munmap(addr,length) (errno = ENOSYS, -1)
		628	#endif
		629
		630	#define MMAP_MAGIC PERL_MAGIC_ext
		631
		632	static int
		633	mmap_free (pTHX_ SV sv, MAGIC mg)
		634	{
		635	int old_errno = errno;
		636	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		637	errno = old_errno;
		638
		639	mg->mg_obj = 0; /* just in case */
		640
		641	SvREADONLY_off (sv);
		642
		643	if (SvPVX (sv) != mg->mg_ptr)
		644	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		645
		646	SvCUR_set (sv, 0);
		647	SvPVX (sv) = 0;
		648	SvOK_off (sv);
		649
		650	return 0;
		651	}
		652
		653	static MGVTBL mmap_vtbl = {
		654	0, 0, 0, 0, mmap_free
		655	};
		656
		657	/*****************************************************************************/
		658
		659	static SV *
		660	get_cb (SV *cb_sv)
		661	{
		662	SvGETMAGIC (cb_sv);
		663	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		664	}
		665
445	#define dREQ \	666	#define dREQ \
		667	SV *cb_cv; \
446	aio_req req; \	668	aio_req req; \
447	int req_pri = next_pri; \	669	int req_pri = next_pri; \
448	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	670	next_pri = EIO_PRI_DEFAULT; \
449	\	671	\
450	if (SvOK (callback) && !SvROK (callback)) \	672	cb_cv = get_cb (callback); \
451	croak ("callback must be undef or of reference type"); \
452	\	673	\
453	Newz (0, req, 1, eio_req); \	674	Newz (0, req, 1, eio_req); \
454	if (!req) \	675	if (!req) \
455	croak ("out of memory during eio_req allocation"); \	676	croak ("out of memory during eio_req allocation"); \
456	\	677	\
457	req->callback = newSVsv (callback); \	678	req->callback = SvREFCNT_inc (cb_cv); \
458	req->pri = req_pri	679	req->pri = req_pri
459		680
460	#define REQ_SEND \	681	#define REQ_SEND \
		682	PUTBACK; \
461	req_submit (req); \	683	req_submit (req); \
		684	SPAGAIN; \
462	\	685	\
463	if (GIMME_V != G_VOID) \	686	if (GIMME_V != G_VOID) \
464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	687	XPUSHs (req_sv (req, aio_req_stash));
465		688
466	MODULE = IO::AIO PACKAGE = IO::AIO	689	MODULE = IO::AIO PACKAGE = IO::AIO
467		690
468	PROTOTYPES: ENABLE	691	PROTOTYPES: ENABLE
469		692
470	BOOT:	693	BOOT:
471	{	694	{
472	stash = gv_stashpv ("IO::AIO", 1);	695	static const struct {
473		696	const char *name;
474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	697	IV iv;
475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	698	} *civ, const_iv[] = {
476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	699	# define const_niv(name, value) { # name, (IV) value },
477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	700	# define const_iv(name) { # name, (IV) name },
478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	701	# define const_eio(name) { # name, (IV) EIO_ ## name },
		702	const_iv (EXDEV)
		703	const_iv (ENOSYS)
		704	const_iv (O_RDONLY)
		705	const_iv (O_WRONLY)
		706	const_iv (O_RDWR)
		707	const_iv (O_CREAT)
		708	const_iv (O_TRUNC)
		709	const_iv (O_EXCL)
		710	const_iv (O_APPEND)
479	#ifdef _WIN32	711	#ifndef _WIN32
480	X_MUTEX_CHECK (wrklock);	712	const_iv (S_IFIFO)
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
487	X_COND_CHECK (reqwait);
488	#else
489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
490	#endif	713	#endif
		714	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		715	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		716	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		717	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		718	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		719	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
491		720
		721	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		722	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		723	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		724	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		725	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		726
		727	const_iv (ST_RDONLY)
		728	const_iv (ST_NOSUID)
		729	const_iv (ST_NODEV)
		730	const_iv (ST_NOEXEC)
		731	const_iv (ST_SYNCHRONOUS)
		732	const_iv (ST_MANDLOCK)
		733	const_iv (ST_WRITE)
		734	const_iv (ST_APPEND)
		735	const_iv (ST_IMMUTABLE)
		736	const_iv (ST_NOATIME)
		737	const_iv (ST_NODIRATIME)
		738	const_iv (ST_RELATIME)
		739
		740	const_iv (PROT_EXEC)
		741	const_iv (PROT_NONE)
		742	const_iv (PROT_READ)
		743	const_iv (PROT_WRITE)
		744
		745	/const_iv (MAP_FIXED)/
		746	const_iv (MAP_PRIVATE)
		747	const_iv (MAP_SHARED)
		748	const_iv (MAP_ANONYMOUS)
		749
		750	/* linuxish */
		751	const_iv (MAP_HUGETLB)
		752	const_iv (MAP_LOCKED)
		753	const_iv (MAP_NORESERVE)
		754	const_iv (MAP_POPULATE)
		755	const_iv (MAP_NONBLOCK)
		756
		757	const_iv (MCL_FUTURE)
		758	const_iv (MCL_CURRENT)
		759
		760	const_eio (MS_ASYNC)
		761	const_eio (MS_INVALIDATE)
		762	const_eio (MS_SYNC)
		763
		764	const_eio (MT_MODIFY)
		765
		766	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		767	const_eio (SYNC_FILE_RANGE_WRITE)
		768	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		769
		770	const_eio (READDIR_DENTS)
		771	const_eio (READDIR_DIRS_FIRST)
		772	const_eio (READDIR_STAT_ORDER)
		773	const_eio (READDIR_FOUND_UNKNOWN)
		774
		775	const_eio (DT_UNKNOWN)
		776	const_eio (DT_FIFO)
		777	const_eio (DT_CHR)
		778	const_eio (DT_DIR)
		779	const_eio (DT_BLK)
		780	const_eio (DT_REG)
		781	const_eio (DT_LNK)
		782	const_eio (DT_SOCK)
		783	const_eio (DT_WHT)
		784	};
		785
		786	aio_stash = gv_stashpv ("IO::AIO" , 1);
		787	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		788	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		789
		790	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		791	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		792
		793	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		794
492	create_respipe ();	795	create_respipe ();
493		796
494	if (eio_init (want_poll, done_poll) < 0)	797	if (eio_init (want_poll, done_poll) < 0)
495	croak ("IO::AIO: unable to initialise eio library");	798	croak ("IO::AIO: unable to initialise eio library");
496		799
497	/* atfork child called in fifo order, so before eio's handler */	800	/* atfork child called in fifo order, so before eio's handler */
498	X_THREAD_ATFORK (0, 0, atfork_child);	801	X_THREAD_ATFORK (0, 0, atfork_child);
499	}	802	}
500		803
501	void	804	void
502	max_poll_reqs (int nreqs)	805	max_poll_reqs (int nreqs)
503	PROTOTYPE: $	806	PROTOTYPE: $
…		…
556	ALIAS:	859	ALIAS:
557	aio_fsync = EIO_FSYNC	860	aio_fsync = EIO_FSYNC
558	aio_fdatasync = EIO_FDATASYNC	861	aio_fdatasync = EIO_FDATASYNC
559	PPCODE:	862	PPCODE:
560	{	863	{
		864	int fd = s_fileno_croak (fh, 0);
561	dREQ;	865	dREQ;
562		866
563	req->type = ix;	867	req->type = ix;
564	req->sv1 = newSVsv (fh);	868	req->sv1 = newSVsv (fh);
565	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	869	req->int1 = fd;
		870
		871	REQ_SEND (req);
		872	}
		873
		874	void
		875	aio_sync_file_range (SV fh, off_t offset, size_t nbytes, UV flags, SV callback=&PL_sv_undef)
		876	PROTOTYPE: $$$$;$
		877	PPCODE:
		878	{
		879	int fd = s_fileno_croak (fh, 0);
		880	dREQ;
		881
		882	req->type = EIO_SYNC_FILE_RANGE;
		883	req->sv1 = newSVsv (fh);
		884	req->int1 = fd;
		885	req->offs = offset;
		886	req->size = nbytes;
		887	req->int2 = flags;
566		888
567	REQ_SEND (req);	889	REQ_SEND (req);
568	}	890	}
569		891
570	void	892	void
571	aio_close (SV fh, SV callback=&PL_sv_undef)	893	aio_close (SV fh, SV callback=&PL_sv_undef)
572	PROTOTYPE: $;$	894	PROTOTYPE: $;$
573	PPCODE:	895	PPCODE:
574	{	896	{
575	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	897	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		898	int fd = s_fileno_croak (fh, 0);
576	dREQ;	899	dREQ;
577		900
578	if (close_pipe < 0)	901	if (close_pipe < 0)
579	{	902	{
580	int pipefd [2];	903	int pipefd [2];
…		…
588	}	911	}
589		912
590	req->type = EIO_DUP2;	913	req->type = EIO_DUP2;
591	req->int1 = close_pipe;	914	req->int1 = close_pipe;
592	req->sv2 = newSVsv (fh);	915	req->sv2 = newSVsv (fh);
593	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	916	req->int2 = fd;
594		917
595	REQ_SEND (req);	918	REQ_SEND (req);
596	}	919	}
597		920
598	void	921	void
…		…
602	aio_write = EIO_WRITE	925	aio_write = EIO_WRITE
603	PROTOTYPE: $$$$$;$	926	PROTOTYPE: $$$$$;$
604	PPCODE:	927	PPCODE:
605	{	928	{
606	STRLEN svlen;	929	STRLEN svlen;
		930	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607	char *svptr = SvPVbyte (data, svlen);	931	char *svptr = SvPVbyte (data, svlen);
608	UV len = SvUV (length);	932	UV len = SvUV (length);
609
610	SvUPGRADE (data, SVt_PV);
611	SvPOK_on (data);
612		933
613	if (dataoffset < 0)	934	if (dataoffset < 0)
614	dataoffset += svlen;	935	dataoffset += svlen;
615		936
616	if (dataoffset < 0 \|\| dataoffset > svlen)	937	if (dataoffset < 0 \|\| dataoffset > svlen)
…		…
622	if (!SvOK (length) \|\| len + dataoffset > svlen)	943	if (!SvOK (length) \|\| len + dataoffset > svlen)
623	len = svlen - dataoffset;	944	len = svlen - dataoffset;
624	}	945	}
625	else	946	else
626	{	947	{
627	/* read: grow scalar as necessary */	948	/* read: check type and grow scalar as necessary */
		949	SvUPGRADE (data, SVt_PV);
628	svptr = SvGROW (data, len + dataoffset + 1);	950	svptr = SvGROW (data, len + dataoffset + 1);
629	}	951	}
630		952
631	if (len < 0)
632	croak ("length must not be negative");
633
634	{	953	{
635	dREQ;	954	dREQ;
636		955
637	req->type = ix;	956	req->type = ix;
638	req->sv1 = newSVsv (fh);	957	req->sv1 = newSVsv (fh);
639	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	958	req->int1 = fd;
640	: IoOFP (sv_2io (fh)));
641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	959	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642	req->size = len;	960	req->size = len;
643	req->sv2 = SvREFCNT_inc (data);	961	req->sv2 = SvREFCNT_inc (data);
644	req->ptr2 = (char *)svptr + dataoffset;	962	req->ptr2 = (char *)svptr + dataoffset;
645	req->stroffset = dataoffset;	963	req->stroffset = dataoffset;
…		…
668		986
669	REQ_SEND;	987	REQ_SEND;
670	}	988	}
671		989
672	void	990	void
673	aio_sendfile (SV out_fh, SV in_fh, SV in_offset, UV length, SV callback=&PL_sv_undef)	991	aio_sendfile (SV out_fh, SV in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
674	PROTOTYPE: $$$$;$	992	PROTOTYPE: $$$$;$
675	PPCODE:	993	PPCODE:
676	{	994	{
		995	int ifd = s_fileno_croak (in_fh , 0);
		996	int ofd = s_fileno_croak (out_fh, 1);
677	dREQ;	997	dREQ;
678		998
679	req->type = EIO_SENDFILE;	999	req->type = EIO_SENDFILE;
680	req->sv1 = newSVsv (out_fh);	1000	req->sv1 = newSVsv (out_fh);
681	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1001	req->int1 = ofd;
682	req->sv2 = newSVsv (in_fh);	1002	req->sv2 = newSVsv (in_fh);
683	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1003	req->int2 = ifd;
684	req->offs = SvVAL64 (in_offset);	1004	req->offs = in_offset;
685	req->size = length;	1005	req->size = length;
686		1006
687	REQ_SEND;	1007	REQ_SEND;
688	}	1008	}
689		1009
690	void	1010	void
691	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)	1011	aio_readahead (SV fh, off_t offset, size_t length, SV callback=&PL_sv_undef)
692	PROTOTYPE: $$$;$	1012	PROTOTYPE: $$$;$
693	PPCODE:	1013	PPCODE:
694	{	1014	{
		1015	int fd = s_fileno_croak (fh, 0);
695	dREQ;	1016	dREQ;
696		1017
697	req->type = EIO_READAHEAD;	1018	req->type = EIO_READAHEAD;
698	req->sv1 = newSVsv (fh);	1019	req->sv1 = newSVsv (fh);
699	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1020	req->int1 = fd;
700	req->offs = SvVAL64 (offset);	1021	req->offs = offset;
701	req->size = length;	1022	req->size = length;
702		1023
703	REQ_SEND;	1024	REQ_SEND;
704	}	1025	}
705		1026
706	void	1027	void
707	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)	1028	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)
708	ALIAS:	1029	ALIAS:
709	aio_stat = EIO_STAT	1030	aio_stat = EIO_STAT
710	aio_lstat = EIO_LSTAT	1031	aio_lstat = EIO_LSTAT
		1032	aio_statvfs = EIO_STATVFS
711	PPCODE:	1033	PPCODE:
712	{	1034	{
713	dREQ;	1035	dREQ;
714		1036
715	req->sv1 = newSVsv (fh_or_path);	1037	req->sv1 = newSVsv (fh_or_path);
…		…
719	req->type = ix;	1041	req->type = ix;
720	req->ptr1 = SvPVbyte_nolen (req->sv1);	1042	req->ptr1 = SvPVbyte_nolen (req->sv1);
721	}	1043	}
722	else	1044	else
723	{	1045	{
724	req->type = EIO_FSTAT;	1046	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1047	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726	}	1048	}
727		1049
728	REQ_SEND;	1050	REQ_SEND;
729	}	1051	}
…		…
824		1146
825	REQ_SEND;	1147	REQ_SEND;
826	}	1148	}
827		1149
828	void	1150	void
		1151	aio_readdirx (SV8 pathname, IV flags, SV callback=&PL_sv_undef)
		1152	PPCODE:
		1153	{
		1154	dREQ;
		1155
		1156	req->type = EIO_READDIR;
		1157	req->sv1 = newSVsv (pathname);
		1158	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1159	req->int1 = flags \| EIO_READDIR_DENTS \| EIO_READDIR_CUSTOM1;
		1160
		1161	if (flags & EIO_READDIR_DENTS)
		1162	req->int1 \|= EIO_READDIR_CUSTOM2;
		1163
		1164	REQ_SEND;
		1165	}
		1166
		1167	void
829	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)	1168	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)
830	ALIAS:	1169	ALIAS:
831	aio_unlink = EIO_UNLINK	1170	aio_unlink = EIO_UNLINK
832	aio_rmdir = EIO_RMDIR	1171	aio_rmdir = EIO_RMDIR
833	aio_readdir = EIO_READDIR	1172	aio_readdir = EIO_READDIR
…		…
875		1214
876	REQ_SEND;	1215	REQ_SEND;
877	}	1216	}
878		1217
879	void	1218	void
		1219	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1220	ALIAS:
		1221	aio_mtouch = EIO_MTOUCH
		1222	aio_msync = EIO_MSYNC
		1223	PROTOTYPE: $$$$;$
		1224	PPCODE:
		1225	{
		1226	STRLEN svlen;
		1227	UV len = SvUV (length);
		1228	char *svptr = SvPVbyte (data, svlen);
		1229
		1230	if (offset < 0)
		1231	offset += svlen;
		1232
		1233	if (offset < 0 \|\| offset > svlen)
		1234	croak ("offset outside of scalar");
		1235
		1236	if (!SvOK (length) \|\| len + offset > svlen)
		1237	len = svlen - offset;
		1238
		1239	{
		1240	dREQ;
		1241
		1242	req->type = ix;
		1243	req->size = len;
		1244	req->sv2 = SvREFCNT_inc (data);
		1245	req->ptr2 = (char *)svptr + offset;
		1246	req->int1 = flags;
		1247
		1248	REQ_SEND;
		1249	}
		1250	}
		1251
		1252	void
880	aio_busy (double delay, SV *callback=&PL_sv_undef)	1253	aio_busy (double delay, SV *callback=&PL_sv_undef)
881	PPCODE:	1254	PPCODE:
882	{	1255	{
883	dREQ;	1256	dREQ;
884		1257
…		…
895	{	1268	{
896	dREQ;	1269	dREQ;
897		1270
898	req->type = EIO_GROUP;	1271	req->type = EIO_GROUP;
899		1272
900	eio_submit (req);	1273	req_submit (req);
901	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1274	XPUSHs (req_sv (req, aio_grp_stash));
902	}	1275	}
903		1276
904	void	1277	void
905	aio_nop (SV *callback=&PL_sv_undef)	1278	aio_nop (SV *callback=&PL_sv_undef)
906	ALIAS:	1279	ALIAS:
…		…
917		1290
918	int	1291	int
919	aioreq_pri (int pri = 0)	1292	aioreq_pri (int pri = 0)
920	PROTOTYPE: ;$	1293	PROTOTYPE: ;$
921	CODE:	1294	CODE:
922	RETVAL = next_pri - EIO_PRI_BIAS;	1295	RETVAL = next_pri;
923	if (items > 0)	1296	if (items > 0)
924	{	1297	{
925	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1298	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
926	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1299	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
927	next_pri = pri + EIO_PRI_BIAS;	1300	next_pri = pri;
928	}	1301	}
929	OUTPUT:	1302	OUTPUT:
930	RETVAL	1303	RETVAL
931		1304
932	void	1305	void
933	aioreq_nice (int nice = 0)	1306	aioreq_nice (int nice = 0)
934	CODE:	1307	CODE:
935	nice = next_pri - nice;	1308	nice = next_pri - nice;
936	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1309	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
937	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1310	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938	next_pri = nice + EIO_PRI_BIAS;	1311	next_pri = nice;
939		1312
940	void	1313	void
941	flush ()	1314	flush ()
942	PROTOTYPE:	1315	PROTOTYPE:
943	CODE:	1316	CODE:
…		…
958		1331
959	int	1332	int
960	poll_fileno()	1333	poll_fileno()
961	PROTOTYPE:	1334	PROTOTYPE:
962	CODE:	1335	CODE:
963	RETVAL = respipe [0];	1336	RETVAL = s_epipe_fd (&respipe);
964	OUTPUT:	1337	OUTPUT:
965	RETVAL	1338	RETVAL
966		1339
967	int	1340	int
968	poll_cb(...)	1341	poll_cb(...)
…		…
1004		1377
1005	int	1378	int
1006	nthreads()	1379	nthreads()
1007	PROTOTYPE:	1380	PROTOTYPE:
1008	CODE:	1381	CODE:
1009	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1382	RETVAL = eio_nthreads ();
1010	RETVAL = started;
1011	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012	OUTPUT:	1383	OUTPUT:
1013	RETVAL	1384	RETVAL
1014		1385
		1386	int
		1387	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1388	PROTOTYPE: $$$$
		1389	CODE:
		1390	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
		1391	RETVAL = posix_fadvise (fh, offset, length, advice);
		1392	#else
		1393	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
		1394	#endif
		1395	OUTPUT:
		1396	RETVAL
		1397
		1398	ssize_t
		1399	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1400	PROTOTYPE: $$$$
		1401	CODE:
		1402	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1403	OUTPUT:
		1404	RETVAL
		1405
		1406	void
		1407	mmap (SV scalar, size_t length, int prot, int flags, SV fh, off_t offset = 0)
		1408	PROTOTYPE: $$$$$;$
		1409	PPCODE:
		1410	sv_unmagic (scalar, MMAP_MAGIC);
		1411	{
		1412	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1413	void addr = (void )mmap (0, length, prot, flags, fd, offset);
		1414	if (addr == (void *)-1)
		1415	XSRETURN_NO;
		1416
		1417	sv_force_normal (scalar);
		1418
		1419	/* we store the length in mg_obj, as namlen is I32 :/ */
		1420	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1421	->mg_obj = (SV *)length;
		1422
		1423	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1424
		1425	if (!(prot & PROT_WRITE))
		1426	SvREADONLY_on (scalar);
		1427
		1428	if (SvLEN (scalar))
		1429	Safefree (SvPVX (scalar));
		1430
		1431	SvPVX (scalar) = (char *)addr;
		1432	SvCUR_set (scalar, length);
		1433	SvLEN_set (scalar, 0);
		1434	SvPOK_only (scalar);
		1435
		1436	XSRETURN_YES;
		1437	}
		1438
		1439	void
		1440	munmap (SV *scalar)
		1441	PROTOTYPE: $
		1442	CODE:
		1443	sv_unmagic (scalar, MMAP_MAGIC);
		1444
		1445	int
		1446	madvise (SV *scalar, off_t offset, off_t length, IV advice)
		1447	PROTOTYPE: $$$$
		1448	CODE:
		1449	{
		1450	char *addr = SvPV_nolen (scalar) + offset;
		1451
		1452	if (!SvOK (ST (2)))
		1453	length = SvCUR (scalar) - offset;
		1454
		1455	if (addr >= SvEND (scalar) \|\| length <= 0)
		1456	XSRETURN_EMPTY;
		1457
		1458	#if _XOPEN_SOURCE >= 600 && !NO_MADVISE
		1459	RETVAL = posix_madvise (addr, length, advice);
		1460	#else
		1461	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
		1462	#endif
		1463	}
		1464	OUTPUT:
		1465	RETVAL
		1466
		1467	int
		1468	mlockall (int flags)
		1469	PROTOTYPE: $
		1470	CODE:
		1471	#if _POSIX_MEMLOCK
		1472	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
		1473	extern int mallopt (int, int);
		1474	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
		1475	#endif
		1476	mlockall (flags);
		1477	#else
		1478	RETVAL = -1;
		1479	errno = ENOSYS;
		1480	#endif
		1481	OUTPUT:
		1482	RETVAL
		1483
		1484	int
		1485	munlockall ()
		1486	PROTOTYPE:
		1487	CODE:
		1488	#if _POSIX_MEMLOCK
		1489	munlockall ();
		1490	#else
		1491	RETVAL = -1;
		1492	errno = ENOSYS;
		1493	#endif
		1494	OUTPUT:
		1495	RETVAL
		1496
1015	void _on_next_submit (SV *cb)	1497	void _on_next_submit (SV *cb)
1016	CODE:	1498	CODE:
1017	SvREFCNT_dec (on_next_submit);	1499	SvREFCNT_dec (on_next_submit);
1018	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1500	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1019		1501
…		…
1026	CODE:	1508	CODE:
1027	eio_cancel (req);	1509	eio_cancel (req);
1028		1510
1029	void	1511	void
1030	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1512	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031	CODE:	1513	PPCODE:
		1514	{
		1515	if (GIMME_V != G_VOID)
		1516	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1517
		1518	if (items > 1)
		1519	{
		1520	SV *cb_cv =get_cb (callback);
		1521
1032	SvREFCNT_dec (req->callback);	1522	SvREFCNT_dec (req->callback);
1033	req->callback = newSVsv (callback);	1523	req->callback = SvREFCNT_inc (cb_cv);
		1524	}
		1525	}
1034		1526
1035	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1527	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036		1528
1037	void	1529	void
1038	add (aio_req grp, ...)	1530	add (aio_req grp, ...)
…		…
1070	AV *av;	1562	AV *av;
1071		1563
1072	grp->errorno = errno;	1564	grp->errorno = errno;
1073		1565
1074	av = newAV ();	1566	av = newAV ();
		1567	av_extend (av, items - 1);
1075		1568
1076	for (i = 1; i < items; ++i )	1569	for (i = 1; i < items; ++i )
1077	av_push (av, newSVsv (ST (i)));	1570	av_push (av, newSVsv (ST (i)));
1078		1571
1079	SvREFCNT_dec (grp->sv1);	1572	SvREFCNT_dec (grp->sv1);
…		…
1093	void	1586	void
1094	feed (aio_req grp, SV *callback=&PL_sv_undef)	1587	feed (aio_req grp, SV *callback=&PL_sv_undef)
1095	CODE:	1588	CODE:
1096	{	1589	{
1097	SvREFCNT_dec (grp->sv2);	1590	SvREFCNT_dec (grp->sv2);
1098	grp->sv2 = newSVsv (callback);	1591	grp->sv2 = newSVsv (callback);
		1592	grp->feed = aio_grp_feed;
1099		1593
1100	if (grp->int2 <= 0)	1594	if (grp->int2 <= 0)
1101	grp->int2 = 2;	1595	grp->int2 = 2;
1102		1596
1103	eio_grp_limit (grp, grp->int2);	1597	eio_grp_limit (grp, grp->int2);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.120 by root, Sun May 11 19:17:09 2008 UTC vs. Revision 1.169 by root, Wed Aug 4 16:06:54 2010 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.120 by root, Sun May 11 19:17:09 2008 UTC vs.
Revision 1.169 by root, Wed Aug 4 16:06:54 2010 UTC