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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.124 by root, Thu May 29 03:20:40 2008 UTC vs.
Revision 1.171 by root, Wed Aug 4 17:16:19 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_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
86	SV *callback; \	116	SV *callback; \
87	SV sv1, sv2; \	117	SV sv1, sv2; \
88	STRLEN stroffset; \	118	STRLEN stroffset; \
…		…
90		120
91	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
92		122
93	#include "libeio/eio.h"	123	#include "libeio/eio.h"
94		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	#if _XOPEN_SOURCE < 600 \|\| NO_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	# define NO_MADVISE 1
		152	#endif
		153	#ifndef POSIX_MADV_SEQUENTIAL
		154	# define POSIX_MADV_SEQUENTIAL 0
		155	#endif
		156	#ifndef POSIX_MADV_RANDOM
		157	# define POSIX_MADV_RANDOM 0
		158	#endif
		159	#ifndef POSIX_MADV_WILLNEED
		160	# define POSIX_MADV_WILLNEED 0
		161	#endif
		162	#ifndef POSIX_MADV_DONTNEED
		163	# define POSIX_MADV_DONTNEED 0
		164	#endif
		165
		166	#if _XOPEN_SOURCE < 600 \|\| NO_MADVISE
		167	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		168	#endif
		169
		170	#ifndef PROT_NONE
		171	# define PROT_NONE 0
		172	#endif
		173	#ifndef PROT_READ
		174	# define PROT_READ 0
		175	#endif
		176	#ifndef PROT_WRITE
		177	# define PROT_READ 0
		178	#endif
		179	#ifndef PROT_EXEC
		180	# define PROT_EXEC 0
		181	#endif
		182
		183	#ifndef ST_NODEV
		184	# define ST_NODEV 0
		185	#endif
		186	#ifndef ST_NOEXEC
		187	# define ST_NOEXEC 0
		188	#endif
		189	#ifndef ST_SYNCHRONOUS
		190	# define ST_SYNCHRONOUS 0
		191	#endif
		192	#ifndef ST_MANDLOCK
		193	# define ST_MANDLOCK 0
		194	#endif
		195	#ifndef ST_WRITE
		196	# define ST_WRITE 0
		197	#endif
		198	#ifndef ST_APPEND
		199	# define ST_APPEND 0
		200	#endif
		201	#ifndef ST_IMMUTABLE
		202	# define ST_IMMUTABLE 0
		203	#endif
		204	#ifndef ST_NOATIME
		205	# define ST_NOATIME 0
		206	#endif
		207	#ifndef ST_NODIRATIME
		208	# define ST_NODIRATIME 0
		209	#endif
		210	#ifndef ST_RELATIME
		211	# define ST_RELATIME 0
		212	#endif
		213
		214	#ifndef MCL_CURRENT
		215	# define MCL_CURRENT 0
		216	#endif
		217	#ifndef MCL_FUTURE
		218	# define MCL_FUTURE 0
		219	#endif
		220
		221	#ifndef MAP_ANONYMOUS
		222	# ifdef MAP_ANON
		223	# define MAP_ANONYMOUS MAP_ANON
		224	# else
		225	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		226	# endif
		227	#endif
		228	#ifndef MAP_HUGETLB
		229	# define MAP_HUGETLB 0
		230	#endif
		231	#ifndef MAP_LOCKED
		232	# define MAP_LOCKED 0
		233	#endif
		234	#ifndef MAP_NORESERVE
		235	# define MAP_NORESERVE 0
		236	#endif
		237	#ifndef MAP_POPULATE
		238	# define MAP_POPULATE 0
		239	#endif
		240	#ifndef MAP_NONBLOCK
		241	# define MAP_NONBLOCK 0
		242	#endif
		243
		244	#ifndef PAGESIZE
		245	# define PAGESIZE sysconf (_SC_PAGESIZE)
		246	#endif
		247
95	static int req_invoke (eio_req *req);	248	static int req_invoke (eio_req *req);
96	#define EIO_FINISH(req) req_invoke (req)	249	#define EIO_FINISH(req) req_invoke (req)
97	static void aio_grp_feed (eio_req *grp);
98	#define EIO_FEED(req) aio_grp_feed (req)
99	static void req_destroy (eio_req *grp);	250	static void req_destroy (eio_req *grp);
100	#define EIO_DESTROY(req) req_destroy (req)	251	#define EIO_DESTROY(req) req_destroy (req)
101		252
102	enum {	253	enum {
103	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	254	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
110		261
111	static SV *on_next_submit;	262	static SV *on_next_submit;
112	static int next_pri = EIO_PRI_DEFAULT;	263	static int next_pri = EIO_PRI_DEFAULT;
113	static int max_outstanding;	264	static int max_outstanding;
114		265
115	static int respipe_osf [2], respipe [2] = { -1, -1 };	266	static s_epipe respipe;
116		267
117	static void req_destroy (aio_req req);	268	static void req_destroy (aio_req req);
118	static void req_cancel (aio_req req);	269	static void req_cancel (aio_req req);
119		270
120	static void want_poll (void)	271	static void want_poll (void)
121	{	272	{
122	/* write a dummy byte to the pipe so fh becomes ready */	273	/* write a dummy byte to the pipe so fh becomes ready */
123	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	274	s_epipe_signal (&respipe);
124	}	275	}
125		276
126	static void done_poll (void)	277	static void done_poll (void)
127	{	278	{
128	/* read any signals sent by the worker threads */	279	/* read any signals sent by the worker threads */
129	char buf [4];	280	s_epipe_drain (&respipe);
130	while (respipe_read (respipe [0], buf, 4) == 4)
131	;
132	}	281	}
133		282
134	/* must be called at most once */	283	/* must be called at most once */
135	static SV req_sv (aio_req req, const char klass)	284	static SV req_sv (aio_req req, HV stash)
136	{	285	{
137	if (!req->self)	286	if (!req->self)
138	{	287	{
139	req->self = (SV *)newHV ();	288	req->self = (SV *)newHV ();
140	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	289	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
141	}	290	}
142		291
143	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	292	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
144	}	293	}
145		294
146	static aio_req SvAIO_REQ (SV *sv)	295	static aio_req SvAIO_REQ (SV *sv)
147	{	296	{
148	MAGIC *mg;	297	MAGIC *mg;
149		298
150	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	299	if (!SvROK (sv)
		300	\|\| (SvSTASH (SvRV (sv)) != aio_grp_stash
		301	&& SvSTASH (SvRV (sv)) != aio_req_stash
		302	&& !sv_derived_from (sv, "IO::AIO::REQ")))
151	croak ("object of class " AIO_REQ_KLASS " expected");	303	croak ("object of class IO::AIO::REQ expected");
152		304
153	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	305	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
154		306
155	return mg ? (aio_req)mg->mg_ptr : 0;	307	return mg ? (aio_req)mg->mg_ptr : 0;
156	}	308	}
…		…
162	dSP;	314	dSP;
163		315
164	ENTER;	316	ENTER;
165	SAVETMPS;	317	SAVETMPS;
166	PUSHMARK (SP);	318	PUSHMARK (SP);
167	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	319	XPUSHs (req_sv (grp, aio_grp_stash));
168	PUTBACK;	320	PUTBACK;
169	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);	321	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);
170	SPAGAIN;	322	SPAGAIN;
171	FREETMPS;	323	FREETMPS;
172	LEAVE;	324	LEAVE;
…		…
175		327
176	static void req_submit (eio_req *req)	328	static void req_submit (eio_req *req)
177	{	329	{
178	eio_submit (req);	330	eio_submit (req);
179		331
180	if (on_next_submit)	332	if (expect_false (on_next_submit))
181	{	333	{
182	dSP;	334	dSP;
183	SV *cb = sv_2mortal (on_next_submit);	335	SV *cb = sv_2mortal (on_next_submit);
184		336
185	on_next_submit = 0;	337	on_next_submit = 0;
…		…
190	}	342	}
191	}	343	}
192		344
193	static int req_invoke (eio_req *req)	345	static int req_invoke (eio_req *req)
194	{	346	{
195	dSP;
196
197	if (req->flags & FLAG_SV2_RO_OFF)	347	if (req->flags & FLAG_SV2_RO_OFF)
198	SvREADONLY_off (req->sv2);	348	SvREADONLY_off (req->sv2);
199		349
200	if (!EIO_CANCELLED (req) && SvOK (req->callback))	350	if (!EIO_CANCELLED (req) && req->callback)
201	{	351	{
		352	dSP;
		353	static SV sv_result_cache; / caches the result integer SV */
		354	SV *sv_result;
		355
202	ENTER;	356	ENTER;
203	SAVETMPS;	357	SAVETMPS;
204	PUSHMARK (SP);	358	PUSHMARK (SP);
205	EXTEND (SP, 1);	359	EXTEND (SP, 1);
		360
		361	/* do not recreate the result IV from scratch each time */
		362	if (expect_true (sv_result_cache))
		363	{
		364	sv_result = sv_result_cache; sv_result_cache = 0;
		365	SvIV_set (sv_result, req->result);
		366	}
		367	else
		368	{
		369	sv_result = newSViv (req->result);
		370	SvREADONLY_on (sv_result);
		371	}
206		372
207	switch (req->type)	373	switch (req->type)
208	{	374	{
209	case EIO_READDIR:	375	case EIO_READDIR:
210	{	376	{
211	SV *rv = &PL_sv_undef;	377	SV *rv = &PL_sv_undef;
212		378
213	if (req->result >= 0)	379	if (req->result >= 0)
214	{	380	{
215	int i;	381	int i;
216	char *buf = req->ptr2;	382	char names = (char )req->ptr2;
		383	eio_dirent ent = (eio_dirent )req->ptr1; /* might be 0 */
217	AV *av = newAV ();	384	AV *av = newAV ();
218		385
219	av_extend (av, req->result - 1);	386	av_extend (av, req->result - 1);
220		387
221	for (i = 0; i < req->result; ++i)	388	for (i = 0; i < req->result; ++i)
222	{	389	{
223	SV *sv = newSVpv (buf, 0);	390	if (req->int1 & EIO_READDIR_DENTS)
		391	{
		392	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
224		393
		394	if (req->int1 & EIO_READDIR_CUSTOM2)
		395	{
		396	static SV sv_type [EIO_DT_MAX + 1]; / type sv cache */
		397	AV *avent = newAV ();
		398
		399	av_extend (avent, 2);
		400
		401	if (!sv_type [ent->type])
		402	{
		403	sv_type [ent->type] = newSViv (ent->type);
		404	SvREADONLY_on (sv_type [ent->type]);
		405	}
		406
		407	av_store (avent, 0, namesv);
		408	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		409	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		410
		411	av_store (av, i, newRV_noinc ((SV *)avent));
		412	}
		413	else
225	av_store (av, i, sv);	414	av_store (av, i, namesv);
		415
		416	++ent;
		417	}
		418	else
		419	{
		420	SV *name = newSVpv (names, 0);
		421	av_store (av, i, name);
226	buf += SvCUR (sv) + 1;	422	names += SvCUR (name) + 1;
		423	}
227	}	424	}
228		425
229	rv = sv_2mortal (newRV_noinc ((SV *)av));	426	rv = sv_2mortal (newRV_noinc ((SV *)av));
230	}	427	}
231		428
232	PUSHs (rv);	429	PUSHs (rv);
		430
		431	if (req->int1 & EIO_READDIR_CUSTOM1)
		432	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 \| EIO_READDIR_CUSTOM2))));
233	}	433	}
234	break;	434	break;
235		435
236	case EIO_OPEN:	436	case EIO_OPEN:
237	{	437	{
…		…
243	GV gv = (GV )sv_newmortal ();	443	GV gv = (GV )sv_newmortal ();
244	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);	444	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);
245	char sym [64];	445	char sym [64];
246	int symlen;	446	int symlen;
247		447
248	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	448	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
249	gv_init (gv, stash, sym, symlen, 0);	449	gv_init (gv, aio_stash, sym, symlen, 0);
250		450
251	symlen = snprintf (	451	symlen = snprintf (
252	sym,	452	sym,
253	sizeof (sym),	453	sizeof (sym),
254	"%s&=%d",	454	"%s&=%d",
255	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	455	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
256	req->result	456	(int)req->result
257	);	457	);
258		458
259	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	459	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
260	fh = (SV *)gv;	460	fh = (SV *)gv;
261	}	461	}
262		462
263	PUSHs (fh);	463	PUSHs (fh);
264	}	464	}
		465	break;
		466
		467	case EIO_STATVFS:
		468	case EIO_FSTATVFS:
		469	{
		470	SV *rv = &PL_sv_undef;
		471
		472	if (req->result >= 0)
		473	{
		474	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		475	HV *hv = newHV ();
		476
		477	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		478
		479	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		480	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		481	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		482	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		483	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		484	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		485	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		486	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		487	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		488	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		489	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		490	}
		491
		492	PUSHs (rv);
		493	}
		494
265	break;	495	break;
266		496
267	case EIO_GROUP:	497	case EIO_GROUP:
268	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
269		499
…		…
291	case EIO_LSTAT:	521	case EIO_LSTAT:
292	case EIO_FSTAT:	522	case EIO_FSTAT:
293	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
294	PL_laststatval = req->result;	524	PL_laststatval = req->result;
295	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);	525	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);
296	PUSHs (sv_2mortal (newSViv (req->result)));	526	PUSHs (sv_result);
297	break;	527	break;
298		528
299	case EIO_READ:	529	case EIO_READ:
		530	{
300	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	531	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
301	*SvEND (req->sv2) = 0;	532	*SvEND (req->sv2) = 0;
302	PUSHs (sv_2mortal (newSViv (req->result)));	533	SvPOK_only (req->sv2);
		534	SvSETMAGIC (req->sv2);
		535	PUSHs (sv_result);
		536	}
303	break;	537	break;
304		538
305	case EIO_DUP2:	539	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
306	if (req->result > 0)	540	if (req->result > 0)
307	req->result = 0;	541	SvIV_set (sv_result, 0);
308	/* FALLTHROUGH */	542	/* FALLTHROUGH */
309		543
310	default:	544	default:
311	PUSHs (sv_2mortal (newSViv (req->result)));	545	PUSHs (sv_result);
312	break;	546	break;
313	}	547	}
314		548
315	errno = req->errorno;	549	errno = req->errorno;
316		550
317	PUTBACK;	551	PUTBACK;
318	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);	552	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);
319	SPAGAIN;	553	SPAGAIN;
		554
		555	if (expect_false (SvREFCNT (sv_result) != 1 \|\| sv_result_cache))
		556	SvREFCNT_dec (sv_result);
		557	else
		558	sv_result_cache = sv_result;
320		559
321	FREETMPS;	560	FREETMPS;
322	LEAVE;	561	LEAVE;
323		562
324	PUTBACK;	563	PUTBACK;
…		…
353	grp->sv2 = 0;	592	grp->sv2 = 0;
354		593
355	eio_grp_cancel (grp);	594	eio_grp_cancel (grp);
356	}	595	}
357		596
358	#ifdef USE_SOCKETS_AS_HANDLES
359	# define TO_SOCKET(x) (win32_get_osfhandle (x))
360	#else
361	# define TO_SOCKET(x) (x)
362	#endif
363
364	static void	597	static void
365	create_respipe (void)	598	create_respipe (void)
366	{	599	{
367	int old_readfd = respipe [0];
368
369	if (respipe [1] >= 0)
370	respipe_close (TO_SOCKET (respipe [1]));
371
372	#ifdef _WIN32
373	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
374	#else
375	if (pipe (respipe))	600	if (s_epipe_renew (&respipe))
376	#endif
377	croak ("unable to initialize result pipe");	601	croak ("IO::AIO: unable to initialize result pipe");
378
379	if (old_readfd >= 0)
380	{
381	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
382	croak ("unable to initialize result pipe(2)");
383
384	respipe_close (respipe [0]);
385	respipe [0] = old_readfd;
386	}
387
388	#ifdef _WIN32
389	int arg = 1;
390	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
391	\|\| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
392	#else
393	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
394	\|\| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
395	#endif
396	croak ("unable to initialize result pipe(3)");
397
398	respipe_osf [0] = TO_SOCKET (respipe [0]);
399	respipe_osf [1] = TO_SOCKET (respipe [1]);
400	}	602	}
401		603
402	static void poll_wait (void)	604	static void poll_wait (void)
403	{	605	{
404	fd_set rfd;
405
406	while (eio_nreqs ())	606	while (eio_nreqs ())
407	{	607	{
408	int size;	608	int size;
409		609
410	X_LOCK (reslock);	610	X_LOCK (reslock);
…		…
414	if (size)	614	if (size)
415	return;	615	return;
416		616
417	etp_maybe_start_thread ();	617	etp_maybe_start_thread ();
418		618
419	FD_ZERO (&rfd);	619	s_epipe_wait (&respipe);
420	FD_SET (respipe [0], &rfd);
421
422	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
423	}	620	}
424	}	621	}
425		622
426	static int poll_cb (void)	623	static int poll_cb (void)
427	{	624	{
…		…
442	static void atfork_child (void)	639	static void atfork_child (void)
443	{	640	{
444	create_respipe ();	641	create_respipe ();
445	}	642	}
446		643
		644	/*****************************************************************************/
		645
		646	#if !_POSIX_MAPPED_FILES
		647	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		648	# define munmap(addr,length) (errno = ENOSYS, -1)
		649	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		650	#endif
		651
		652	#define MMAP_MAGIC PERL_MAGIC_ext
		653
		654	static int
		655	mmap_free (pTHX_ SV sv, MAGIC mg)
		656	{
		657	int old_errno = errno;
		658	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		659	errno = old_errno;
		660
		661	mg->mg_obj = 0; /* just in case */
		662
		663	SvREADONLY_off (sv);
		664
		665	if (SvPVX (sv) != mg->mg_ptr)
		666	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		667
		668	SvCUR_set (sv, 0);
		669	SvPVX (sv) = 0;
		670	SvOK_off (sv);
		671
		672	return 0;
		673	}
		674
		675	static MGVTBL mmap_vtbl = {
		676	0, 0, 0, 0, mmap_free
		677	};
		678
		679	/*****************************************************************************/
		680
		681	static SV *
		682	get_cb (SV *cb_sv)
		683	{
		684	SvGETMAGIC (cb_sv);
		685	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		686	}
		687
447	#define dREQ \	688	#define dREQ \
		689	SV *cb_cv; \
448	aio_req req; \	690	aio_req req; \
449	int req_pri = next_pri; \	691	int req_pri = next_pri; \
450	next_pri = EIO_PRI_DEFAULT; \	692	next_pri = EIO_PRI_DEFAULT; \
451	\	693	\
452	if (SvOK (callback) && !SvROK (callback)) \	694	cb_cv = get_cb (callback); \
453	croak ("callback must be undef or of reference type"); \
454	\	695	\
455	Newz (0, req, 1, eio_req); \	696	Newz (0, req, 1, eio_req); \
456	if (!req) \	697	if (!req) \
457	croak ("out of memory during eio_req allocation"); \	698	croak ("out of memory during eio_req allocation"); \
458	\	699	\
459	req->callback = newSVsv (callback); \	700	req->callback = SvREFCNT_inc (cb_cv); \
460	req->pri = req_pri	701	req->pri = req_pri
461		702
462	#define REQ_SEND \	703	#define REQ_SEND \
		704	PUTBACK; \
463	req_submit (req); \	705	req_submit (req); \
		706	SPAGAIN; \
464	\	707	\
465	if (GIMME_V != G_VOID) \	708	if (GIMME_V != G_VOID) \
466	XPUSHs (req_sv (req, AIO_REQ_KLASS));	709	XPUSHs (req_sv (req, aio_req_stash));
467		710
468	MODULE = IO::AIO PACKAGE = IO::AIO	711	MODULE = IO::AIO PACKAGE = IO::AIO
469		712
470	PROTOTYPES: ENABLE	713	PROTOTYPES: ENABLE
471		714
472	BOOT:	715	BOOT:
473	{	716	{
474	stash = gv_stashpv ("IO::AIO", 1);	717	static const struct {
475		718	const char *name;
476	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	719	IV iv;
477	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	720	} *civ, const_iv[] = {
478	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	721	# define const_niv(name, value) { # name, (IV) value },
479	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	722	# define const_iv(name) { # name, (IV) name },
480	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	723	# define const_eio(name) { # name, (IV) EIO_ ## name },
		724	const_iv (EXDEV)
		725	const_iv (ENOSYS)
		726	const_iv (O_RDONLY)
		727	const_iv (O_WRONLY)
		728	const_iv (O_RDWR)
		729	const_iv (O_CREAT)
		730	const_iv (O_TRUNC)
		731	const_iv (O_EXCL)
		732	const_iv (O_APPEND)
481	#ifndef _WIN32	733	#ifndef _WIN32
482	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	734	const_iv (S_IFIFO)
483	#endif	735	#endif
		736	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		737	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		738	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		739	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		740	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		741	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
484		742
		743	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		744	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		745	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		746	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		747	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		748
		749	const_iv (ST_RDONLY)
		750	const_iv (ST_NOSUID)
		751	const_iv (ST_NODEV)
		752	const_iv (ST_NOEXEC)
		753	const_iv (ST_SYNCHRONOUS)
		754	const_iv (ST_MANDLOCK)
		755	const_iv (ST_WRITE)
		756	const_iv (ST_APPEND)
		757	const_iv (ST_IMMUTABLE)
		758	const_iv (ST_NOATIME)
		759	const_iv (ST_NODIRATIME)
		760	const_iv (ST_RELATIME)
		761
		762	const_iv (PROT_NONE)
		763	const_iv (PROT_EXEC)
		764	const_iv (PROT_READ)
		765	const_iv (PROT_WRITE)
		766
		767	/const_iv (MAP_FIXED)/
		768	const_iv (MAP_PRIVATE)
		769	const_iv (MAP_SHARED)
		770	const_iv (MAP_ANONYMOUS)
		771
		772	/* linuxish */
		773	const_iv (MAP_HUGETLB)
		774	const_iv (MAP_LOCKED)
		775	const_iv (MAP_NORESERVE)
		776	const_iv (MAP_POPULATE)
		777	const_iv (MAP_NONBLOCK)
		778
		779	const_iv (MCL_FUTURE)
		780	const_iv (MCL_CURRENT)
		781
		782	const_eio (MS_ASYNC)
		783	const_eio (MS_INVALIDATE)
		784	const_eio (MS_SYNC)
		785
		786	const_eio (MT_MODIFY)
		787
		788	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		789	const_eio (SYNC_FILE_RANGE_WRITE)
		790	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		791
		792	const_eio (READDIR_DENTS)
		793	const_eio (READDIR_DIRS_FIRST)
		794	const_eio (READDIR_STAT_ORDER)
		795	const_eio (READDIR_FOUND_UNKNOWN)
		796
		797	const_eio (DT_UNKNOWN)
		798	const_eio (DT_FIFO)
		799	const_eio (DT_CHR)
		800	const_eio (DT_DIR)
		801	const_eio (DT_BLK)
		802	const_eio (DT_REG)
		803	const_eio (DT_LNK)
		804	const_eio (DT_SOCK)
		805	const_eio (DT_WHT)
		806	};
		807
		808	aio_stash = gv_stashpv ("IO::AIO" , 1);
		809	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		810	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		811
		812	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		813	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		814
		815	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		816
485	create_respipe ();	817	create_respipe ();
486		818
487	if (eio_init (want_poll, done_poll) < 0)	819	if (eio_init (want_poll, done_poll) < 0)
488	croak ("IO::AIO: unable to initialise eio library");	820	croak ("IO::AIO: unable to initialise eio library");
489		821
490	/* atfork child called in fifo order, so before eio's handler */	822	/* atfork child called in fifo order, so before eio's handler */
491	X_THREAD_ATFORK (0, 0, atfork_child);	823	X_THREAD_ATFORK (0, 0, atfork_child);
492	}	824	}
493		825
494	void	826	void
495	max_poll_reqs (int nreqs)	827	max_poll_reqs (int nreqs)
496	PROTOTYPE: $	828	PROTOTYPE: $
…		…
549	ALIAS:	881	ALIAS:
550	aio_fsync = EIO_FSYNC	882	aio_fsync = EIO_FSYNC
551	aio_fdatasync = EIO_FDATASYNC	883	aio_fdatasync = EIO_FDATASYNC
552	PPCODE:	884	PPCODE:
553	{	885	{
		886	int fd = s_fileno_croak (fh, 0);
554	dREQ;	887	dREQ;
555		888
556	req->type = ix;	889	req->type = ix;
557	req->sv1 = newSVsv (fh);	890	req->sv1 = newSVsv (fh);
558	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	891	req->int1 = fd;
		892
		893	REQ_SEND (req);
		894	}
		895
		896	void
		897	aio_sync_file_range (SV fh, off_t offset, size_t nbytes, UV flags, SV callback=&PL_sv_undef)
		898	PROTOTYPE: $$$$;$
		899	PPCODE:
		900	{
		901	int fd = s_fileno_croak (fh, 0);
		902	dREQ;
		903
		904	req->type = EIO_SYNC_FILE_RANGE;
		905	req->sv1 = newSVsv (fh);
		906	req->int1 = fd;
		907	req->offs = offset;
		908	req->size = nbytes;
		909	req->int2 = flags;
559		910
560	REQ_SEND (req);	911	REQ_SEND (req);
561	}	912	}
562		913
563	void	914	void
564	aio_close (SV fh, SV callback=&PL_sv_undef)	915	aio_close (SV fh, SV callback=&PL_sv_undef)
565	PROTOTYPE: $;$	916	PROTOTYPE: $;$
566	PPCODE:	917	PPCODE:
567	{	918	{
568	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	919	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		920	int fd = s_fileno_croak (fh, 0);
569	dREQ;	921	dREQ;
570		922
571	if (close_pipe < 0)	923	if (close_pipe < 0)
572	{	924	{
573	int pipefd [2];	925	int pipefd [2];
…		…
581	}	933	}
582		934
583	req->type = EIO_DUP2;	935	req->type = EIO_DUP2;
584	req->int1 = close_pipe;	936	req->int1 = close_pipe;
585	req->sv2 = newSVsv (fh);	937	req->sv2 = newSVsv (fh);
586	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	938	req->int2 = fd;
587		939
588	REQ_SEND (req);	940	REQ_SEND (req);
589	}	941	}
590		942
591	void	943	void
…		…
595	aio_write = EIO_WRITE	947	aio_write = EIO_WRITE
596	PROTOTYPE: $$$$$;$	948	PROTOTYPE: $$$$$;$
597	PPCODE:	949	PPCODE:
598	{	950	{
599	STRLEN svlen;	951	STRLEN svlen;
		952	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600	char *svptr = SvPVbyte (data, svlen);	953	char *svptr = SvPVbyte (data, svlen);
601	UV len = SvUV (length);	954	UV len = SvUV (length);
602
603	SvUPGRADE (data, SVt_PV);
604	SvPOK_on (data);
605		955
606	if (dataoffset < 0)	956	if (dataoffset < 0)
607	dataoffset += svlen;	957	dataoffset += svlen;
608		958
609	if (dataoffset < 0 \|\| dataoffset > svlen)	959	if (dataoffset < 0 \|\| dataoffset > svlen)
…		…
615	if (!SvOK (length) \|\| len + dataoffset > svlen)	965	if (!SvOK (length) \|\| len + dataoffset > svlen)
616	len = svlen - dataoffset;	966	len = svlen - dataoffset;
617	}	967	}
618	else	968	else
619	{	969	{
620	/* read: grow scalar as necessary */	970	/* read: check type and grow scalar as necessary */
		971	SvUPGRADE (data, SVt_PV);
621	svptr = SvGROW (data, len + dataoffset + 1);	972	svptr = SvGROW (data, len + dataoffset + 1);
622	}	973	}
623		974
624	if (len < 0)
625	croak ("length must not be negative");
626
627	{	975	{
628	dREQ;	976	dREQ;
629		977
630	req->type = ix;	978	req->type = ix;
631	req->sv1 = newSVsv (fh);	979	req->sv1 = newSVsv (fh);
632	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	980	req->int1 = fd;
633	: IoOFP (sv_2io (fh)));
634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	981	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635	req->size = len;	982	req->size = len;
636	req->sv2 = SvREFCNT_inc (data);	983	req->sv2 = SvREFCNT_inc (data);
637	req->ptr2 = (char *)svptr + dataoffset;	984	req->ptr2 = (char *)svptr + dataoffset;
638	req->stroffset = dataoffset;	985	req->stroffset = dataoffset;
…		…
661		1008
662	REQ_SEND;	1009	REQ_SEND;
663	}	1010	}
664		1011
665	void	1012	void
666	aio_sendfile (SV out_fh, SV in_fh, SV in_offset, UV length, SV callback=&PL_sv_undef)	1013	aio_sendfile (SV out_fh, SV in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
667	PROTOTYPE: $$$$;$	1014	PROTOTYPE: $$$$;$
668	PPCODE:	1015	PPCODE:
669	{	1016	{
		1017	int ifd = s_fileno_croak (in_fh , 0);
		1018	int ofd = s_fileno_croak (out_fh, 1);
670	dREQ;	1019	dREQ;
671		1020
672	req->type = EIO_SENDFILE;	1021	req->type = EIO_SENDFILE;
673	req->sv1 = newSVsv (out_fh);	1022	req->sv1 = newSVsv (out_fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1023	req->int1 = ofd;
675	req->sv2 = newSVsv (in_fh);	1024	req->sv2 = newSVsv (in_fh);
676	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1025	req->int2 = ifd;
677	req->offs = SvVAL64 (in_offset);	1026	req->offs = in_offset;
678	req->size = length;	1027	req->size = length;
679		1028
680	REQ_SEND;	1029	REQ_SEND;
681	}	1030	}
682		1031
683	void	1032	void
684	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)	1033	aio_readahead (SV fh, off_t offset, size_t length, SV callback=&PL_sv_undef)
685	PROTOTYPE: $$$;$	1034	PROTOTYPE: $$$;$
686	PPCODE:	1035	PPCODE:
687	{	1036	{
		1037	int fd = s_fileno_croak (fh, 0);
688	dREQ;	1038	dREQ;
689		1039
690	req->type = EIO_READAHEAD;	1040	req->type = EIO_READAHEAD;
691	req->sv1 = newSVsv (fh);	1041	req->sv1 = newSVsv (fh);
692	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1042	req->int1 = fd;
693	req->offs = SvVAL64 (offset);	1043	req->offs = offset;
694	req->size = length;	1044	req->size = length;
695		1045
696	REQ_SEND;	1046	REQ_SEND;
697	}	1047	}
698		1048
699	void	1049	void
700	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)	1050	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)
701	ALIAS:	1051	ALIAS:
702	aio_stat = EIO_STAT	1052	aio_stat = EIO_STAT
703	aio_lstat = EIO_LSTAT	1053	aio_lstat = EIO_LSTAT
		1054	aio_statvfs = EIO_STATVFS
704	PPCODE:	1055	PPCODE:
705	{	1056	{
706	dREQ;	1057	dREQ;
707		1058
708	req->sv1 = newSVsv (fh_or_path);	1059	req->sv1 = newSVsv (fh_or_path);
…		…
712	req->type = ix;	1063	req->type = ix;
713	req->ptr1 = SvPVbyte_nolen (req->sv1);	1064	req->ptr1 = SvPVbyte_nolen (req->sv1);
714	}	1065	}
715	else	1066	else
716	{	1067	{
717	req->type = EIO_FSTAT;	1068	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
718	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1069	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719	}	1070	}
720		1071
721	REQ_SEND;	1072	REQ_SEND;
722	}	1073	}
…		…
817		1168
818	REQ_SEND;	1169	REQ_SEND;
819	}	1170	}
820		1171
821	void	1172	void
		1173	aio_readdirx (SV8 pathname, IV flags, SV callback=&PL_sv_undef)
		1174	PPCODE:
		1175	{
		1176	dREQ;
		1177
		1178	req->type = EIO_READDIR;
		1179	req->sv1 = newSVsv (pathname);
		1180	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1181	req->int1 = flags \| EIO_READDIR_DENTS \| EIO_READDIR_CUSTOM1;
		1182
		1183	if (flags & EIO_READDIR_DENTS)
		1184	req->int1 \|= EIO_READDIR_CUSTOM2;
		1185
		1186	REQ_SEND;
		1187	}
		1188
		1189	void
822	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)	1190	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)
823	ALIAS:	1191	ALIAS:
824	aio_unlink = EIO_UNLINK	1192	aio_unlink = EIO_UNLINK
825	aio_rmdir = EIO_RMDIR	1193	aio_rmdir = EIO_RMDIR
826	aio_readdir = EIO_READDIR	1194	aio_readdir = EIO_READDIR
…		…
868		1236
869	REQ_SEND;	1237	REQ_SEND;
870	}	1238	}
871		1239
872	void	1240	void
		1241	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1242	ALIAS:
		1243	aio_mtouch = EIO_MTOUCH
		1244	aio_msync = EIO_MSYNC
		1245	PROTOTYPE: $$$$;$
		1246	PPCODE:
		1247	{
		1248	STRLEN svlen;
		1249	UV len = SvUV (length);
		1250	char *svptr = SvPVbyte (data, svlen);
		1251
		1252	if (offset < 0)
		1253	offset += svlen;
		1254
		1255	if (offset < 0 \|\| offset > svlen)
		1256	croak ("offset outside of scalar");
		1257
		1258	if (!SvOK (length) \|\| len + offset > svlen)
		1259	len = svlen - offset;
		1260
		1261	{
		1262	dREQ;
		1263
		1264	req->type = ix;
		1265	req->size = len;
		1266	req->sv2 = SvREFCNT_inc (data);
		1267	req->ptr2 = (char *)svptr + offset;
		1268	req->int1 = flags;
		1269
		1270	REQ_SEND;
		1271	}
		1272	}
		1273
		1274	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1275	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1276	PPCODE:
875	{	1277	{
876	dREQ;	1278	dREQ;
877		1279
…		…
888	{	1290	{
889	dREQ;	1291	dREQ;
890		1292
891	req->type = EIO_GROUP;	1293	req->type = EIO_GROUP;
892		1294
893	eio_submit (req);	1295	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1296	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1297	}
896		1298
897	void	1299	void
898	aio_nop (SV *callback=&PL_sv_undef)	1300	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1301	ALIAS:
…		…
951		1353
952	int	1354	int
953	poll_fileno()	1355	poll_fileno()
954	PROTOTYPE:	1356	PROTOTYPE:
955	CODE:	1357	CODE:
956	RETVAL = respipe [0];	1358	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1359	OUTPUT:
958	RETVAL	1360	RETVAL
959		1361
960	int	1362	int
961	poll_cb(...)	1363	poll_cb(...)
…		…
1001	CODE:	1403	CODE:
1002	RETVAL = eio_nthreads ();	1404	RETVAL = eio_nthreads ();
1003	OUTPUT:	1405	OUTPUT:
1004	RETVAL	1406	RETVAL
1005		1407
		1408	int
		1409	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1410	PROTOTYPE: $$$$
		1411	CODE:
		1412	RETVAL = posix_fadvise (fh, offset, length, advice);
		1413	OUTPUT:
		1414	RETVAL
		1415
		1416	ssize_t
		1417	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1418	PROTOTYPE: $$$$
		1419	CODE:
		1420	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1421	OUTPUT:
		1422	RETVAL
		1423
		1424	void
		1425	mmap (SV scalar, size_t length, int prot, int flags, SV fh, off_t offset = 0)
		1426	PROTOTYPE: $$$$$;$
		1427	PPCODE:
		1428	sv_unmagic (scalar, MMAP_MAGIC);
		1429	{
		1430	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1431	void addr = (void )mmap (0, length, prot, flags, fd, offset);
		1432	if (addr == (void *)-1)
		1433	XSRETURN_NO;
		1434
		1435	sv_force_normal (scalar);
		1436
		1437	/* we store the length in mg_obj, as namlen is I32 :/ */
		1438	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1439	->mg_obj = (SV *)length;
		1440
		1441	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1442
		1443	if (!(prot & PROT_WRITE))
		1444	SvREADONLY_on (scalar);
		1445
		1446	if (SvLEN (scalar))
		1447	Safefree (SvPVX (scalar));
		1448
		1449	SvPVX (scalar) = (char *)addr;
		1450	SvCUR_set (scalar, length);
		1451	SvLEN_set (scalar, 0);
		1452	SvPOK_only (scalar);
		1453
		1454	XSRETURN_YES;
		1455	}
		1456
		1457	void
		1458	munmap (SV *scalar)
		1459	PROTOTYPE: $
		1460	CODE:
		1461	sv_unmagic (scalar, MMAP_MAGIC);
		1462
		1463	int
		1464	madvise (SV *scalar, off_t offset, off_t length, IV advice_or_prot)
		1465	ALIAS:
		1466	mprotect = 1
		1467	PROTOTYPE: $$$$
		1468	CODE:
		1469	{
		1470	STRLEN cur;
		1471	char *addr = SvPVbyte (scalar, cur);
		1472
		1473	if (offset > cur)
		1474	RETVAL = errno = EFAULT;
		1475	else
		1476	{
		1477	if (!SvOK (ST (2)))
		1478	length = cur - offset;
		1479
		1480	if (offset + length > cur)
		1481	RETVAL = errno = EFAULT;
		1482	else
		1483	switch (ix)
		1484	{
		1485	case 0: RETVAL = posix_madvise (addr + offset, length, advice_or_prot); break;
		1486	case 1: RETVAL = mprotect (addr + offset, length, advice_or_prot); break;
		1487	}
		1488	}
		1489	}
		1490	OUTPUT:
		1491	RETVAL
		1492
		1493	int
		1494	mlockall (int flags)
		1495	PROTOTYPE: $
		1496	CODE:
		1497	#if _POSIX_MEMLOCK
		1498	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
		1499	extern int mallopt (int, int);
		1500	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
		1501	#endif
		1502	mlockall (flags);
		1503	#else
		1504	RETVAL = -1;
		1505	errno = ENOSYS;
		1506	#endif
		1507	OUTPUT:
		1508	RETVAL
		1509
		1510	int
		1511	munlockall ()
		1512	PROTOTYPE:
		1513	CODE:
		1514	#if _POSIX_MEMLOCK
		1515	munlockall ();
		1516	#else
		1517	RETVAL = -1;
		1518	errno = ENOSYS;
		1519	#endif
		1520	OUTPUT:
		1521	RETVAL
		1522
1006	void _on_next_submit (SV *cb)	1523	void _on_next_submit (SV *cb)
1007	CODE:	1524	CODE:
1008	SvREFCNT_dec (on_next_submit);	1525	SvREFCNT_dec (on_next_submit);
1009	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1526	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010		1527
…		…
1017	CODE:	1534	CODE:
1018	eio_cancel (req);	1535	eio_cancel (req);
1019		1536
1020	void	1537	void
1021	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1538	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1022	CODE:	1539	PPCODE:
		1540	{
		1541	if (GIMME_V != G_VOID)
		1542	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1543
		1544	if (items > 1)
		1545	{
		1546	SV *cb_cv =get_cb (callback);
		1547
1023	SvREFCNT_dec (req->callback);	1548	SvREFCNT_dec (req->callback);
1024	req->callback = newSVsv (callback);	1549	req->callback = SvREFCNT_inc (cb_cv);
		1550	}
		1551	}
1025		1552
1026	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1553	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027		1554
1028	void	1555	void
1029	add (aio_req grp, ...)	1556	add (aio_req grp, ...)
…		…
1061	AV *av;	1588	AV *av;
1062		1589
1063	grp->errorno = errno;	1590	grp->errorno = errno;
1064		1591
1065	av = newAV ();	1592	av = newAV ();
		1593	av_extend (av, items - 1);
1066		1594
1067	for (i = 1; i < items; ++i )	1595	for (i = 1; i < items; ++i )
1068	av_push (av, newSVsv (ST (i)));	1596	av_push (av, newSVsv (ST (i)));
1069		1597
1070	SvREFCNT_dec (grp->sv1);	1598	SvREFCNT_dec (grp->sv1);
…		…
1084	void	1612	void
1085	feed (aio_req grp, SV *callback=&PL_sv_undef)	1613	feed (aio_req grp, SV *callback=&PL_sv_undef)
1086	CODE:	1614	CODE:
1087	{	1615	{
1088	SvREFCNT_dec (grp->sv2);	1616	SvREFCNT_dec (grp->sv2);
1089	grp->sv2 = newSVsv (callback);	1617	grp->sv2 = newSVsv (callback);
		1618	grp->feed = aio_grp_feed;
1090		1619
1091	if (grp->int2 <= 0)	1620	if (grp->int2 <= 0)
1092	grp->int2 = 2;	1621	grp->int2 = 2;
1093		1622
1094	eio_grp_limit (grp, grp->int2);	1623	eio_grp_limit (grp, grp->int2);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.124 by root, Thu May 29 03:20:40 2008 UTC vs. Revision 1.171 by root, Wed Aug 4 17:16:19 2010 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.124 by root, Thu May 29 03:20:40 2008 UTC vs.
Revision 1.171 by root, Wed Aug 4 17:16:19 2010 UTC