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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.130 by root, Thu Oct 2 11:35:03 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
…		…
75		82
76	#define EIO_STRUCT_STAT Stat_t	83	#define EIO_STRUCT_STAT Stat_t
77		84
78	/* use NV for 32 bit perls as it allows larger offsets */	85	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8	86	#if IVSIZE >= 8
		87	# define VAL64 IV
80	# define SvVAL64 SvIV	88	# define SvVAL64 SvIV
		89	# define newSVval64 newSViv
81	#else	90	#else
		91	# define VAL64 NV
82	# define SvVAL64 SvNV	92	# define SvVAL64 SvNV
		93	# define newSVval64 newSVnv
83	#endif	94	#endif
84		95
85	/*****************************************************************************/	96	/*****************************************************************************/
86		97
87	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
95		106
96	/*****************************************************************************/	107	/*****************************************************************************/
97		108
98	static HV *stash;
99	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 */
100		112
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV aio_stash, aio_req_stash, *aio_grp_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		114
104	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
105	SV *callback; \	116	SV *callback; \
106	SV sv1, sv2; \	117	SV sv1, sv2; \
107	STRLEN stroffset; \	118	STRLEN stroffset; \
…		…
109		120
110	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
111		122
112	#include "libeio/eio.h"	123	#include "libeio/eio.h"
113		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
114	static int req_invoke (eio_req *req);	248	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	249	#define EIO_FINISH(req) req_invoke (req)
116	static void aio_grp_feed (eio_req *grp);
117	#define EIO_FEED(req) aio_grp_feed (req)
118	static void req_destroy (eio_req *grp);	250	static void req_destroy (eio_req *grp);
119	#define EIO_DESTROY(req) req_destroy (req)	251	#define EIO_DESTROY(req) req_destroy (req)
120		252
121	enum {	253	enum {
122	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	254	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
129		261
130	static SV *on_next_submit;	262	static SV *on_next_submit;
131	static int next_pri = EIO_PRI_DEFAULT;	263	static int next_pri = EIO_PRI_DEFAULT;
132	static int max_outstanding;	264	static int max_outstanding;
133		265
134	static int respipe_osf [2], respipe [2] = { -1, -1 };	266	static s_epipe respipe;
135		267
136	static void req_destroy (aio_req req);	268	static void req_destroy (aio_req req);
137	static void req_cancel (aio_req req);	269	static void req_cancel (aio_req req);
138		270
139	static void want_poll (void)	271	static void want_poll (void)
140	{	272	{
141	/* write a dummy byte to the pipe so fh becomes ready */	273	/* write a dummy byte to the pipe so fh becomes ready */
142	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	274	s_epipe_signal (&respipe);
143	}	275	}
144		276
145	static void done_poll (void)	277	static void done_poll (void)
146	{	278	{
147	/* read any signals sent by the worker threads */	279	/* read any signals sent by the worker threads */
148	char buf [4];	280	s_epipe_drain (&respipe);
149	while (respipe_read (respipe [0], buf, 4) == 4)
150	;
151	}	281	}
152		282
153	/* must be called at most once */	283	/* must be called at most once */
154	static SV req_sv (aio_req req, const char klass)	284	static SV req_sv (aio_req req, HV stash)
155	{	285	{
156	if (!req->self)	286	if (!req->self)
157	{	287	{
158	req->self = (SV *)newHV ();	288	req->self = (SV *)newHV ();
159	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	289	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
160	}	290	}
161		291
162	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	292	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
163	}	293	}
164		294
165	static aio_req SvAIO_REQ (SV *sv)	295	static aio_req SvAIO_REQ (SV *sv)
166	{	296	{
167	MAGIC *mg;	297	MAGIC *mg;
168		298
169	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")))
170	croak ("object of class " AIO_REQ_KLASS " expected");	303	croak ("object of class IO::AIO::REQ expected");
171		304
172	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	305	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
173		306
174	return mg ? (aio_req)mg->mg_ptr : 0;	307	return mg ? (aio_req)mg->mg_ptr : 0;
175	}	308	}
…		…
181	dSP;	314	dSP;
182		315
183	ENTER;	316	ENTER;
184	SAVETMPS;	317	SAVETMPS;
185	PUSHMARK (SP);	318	PUSHMARK (SP);
186	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	319	XPUSHs (req_sv (grp, aio_grp_stash));
187	PUTBACK;	320	PUTBACK;
188	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);	321	call_sv (grp->sv2, G_VOID \| G_EVAL \| G_KEEPERR);
189	SPAGAIN;	322	SPAGAIN;
190	FREETMPS;	323	FREETMPS;
191	LEAVE;	324	LEAVE;
…		…
209	}	342	}
210	}	343	}
211		344
212	static int req_invoke (eio_req *req)	345	static int req_invoke (eio_req *req)
213	{	346	{
214	dSP;
215
216	if (req->flags & FLAG_SV2_RO_OFF)	347	if (req->flags & FLAG_SV2_RO_OFF)
217	SvREADONLY_off (req->sv2);	348	SvREADONLY_off (req->sv2);
218		349
219	if (!EIO_CANCELLED (req) && req->callback)	350	if (!EIO_CANCELLED (req) && req->callback)
220	{	351	{
		352	dSP;
		353	static SV sv_result_cache; / caches the result integer SV */
		354	SV *sv_result;
		355
221	ENTER;	356	ENTER;
222	SAVETMPS;	357	SAVETMPS;
223	PUSHMARK (SP);	358	PUSHMARK (SP);
224	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	}
225		372
226	switch (req->type)	373	switch (req->type)
227	{	374	{
228	case EIO_READDIR:	375	case EIO_READDIR:
229	{	376	{
230	SV *rv = &PL_sv_undef;	377	SV *rv = &PL_sv_undef;
231		378
232	if (req->result >= 0)	379	if (req->result >= 0)
233	{	380	{
234	int i;	381	int i;
235	char *buf = req->ptr2;	382	char names = (char )req->ptr2;
		383	eio_dirent ent = (eio_dirent )req->ptr1; /* might be 0 */
236	AV *av = newAV ();	384	AV *av = newAV ();
237		385
238	av_extend (av, req->result - 1);	386	av_extend (av, req->result - 1);
239		387
240	for (i = 0; i < req->result; ++i)	388	for (i = 0; i < req->result; ++i)
241	{	389	{
242	SV *sv = newSVpv (buf, 0);	390	if (req->int1 & EIO_READDIR_DENTS)
		391	{
		392	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
243		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
244	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);
245	buf += SvCUR (sv) + 1;	422	names += SvCUR (name) + 1;
		423	}
246	}	424	}
247		425
248	rv = sv_2mortal (newRV_noinc ((SV *)av));	426	rv = sv_2mortal (newRV_noinc ((SV *)av));
249	}	427	}
250		428
251	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))));
252	}	433	}
253	break;	434	break;
254		435
255	case EIO_OPEN:	436	case EIO_OPEN:
256	{	437	{
…		…
262	GV gv = (GV )sv_newmortal ();	443	GV gv = (GV )sv_newmortal ();
263	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);	444	int flags = req->int1 & (O_RDONLY \| O_WRONLY \| O_RDWR);
264	char sym [64];	445	char sym [64];
265	int symlen;	446	int symlen;
266		447
267	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	448	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
268	gv_init (gv, stash, sym, symlen, 0);	449	gv_init (gv, aio_stash, sym, symlen, 0);
269		450
270	symlen = snprintf (	451	symlen = snprintf (
271	sym,	452	sym,
272	sizeof (sym),	453	sizeof (sym),
273	"%s&=%d",	454	"%s&=%d",
274	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	455	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
275	req->result	456	(int)req->result
276	);	457	);
277		458
278	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	459	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
279	fh = (SV *)gv;	460	fh = (SV *)gv;
280	}	461	}
281		462
282	PUSHs (fh);	463	PUSHs (fh);
283	}	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
284	break;	495	break;
285		496
286	case EIO_GROUP:	497	case EIO_GROUP:
287	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
288		499
…		…
310	case EIO_LSTAT:	521	case EIO_LSTAT:
311	case EIO_FSTAT:	522	case EIO_FSTAT:
312	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
313	PL_laststatval = req->result;	524	PL_laststatval = req->result;
314	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);	525	PL_statcache = (EIO_STRUCT_STAT )(req->ptr2);
315	PUSHs (sv_2mortal (newSViv (req->result)));	526	PUSHs (sv_result);
316	break;	527	break;
317		528
318	case EIO_READ:	529	case EIO_READ:
		530	{
319	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));
320	*SvEND (req->sv2) = 0;	532	*SvEND (req->sv2) = 0;
321	PUSHs (sv_2mortal (newSViv (req->result)));	533	SvPOK_only (req->sv2);
		534	SvSETMAGIC (req->sv2);
		535	PUSHs (sv_result);
		536	}
322	break;	537	break;
323		538
324	case EIO_DUP2:	539	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
325	if (req->result > 0)	540	if (req->result > 0)
326	req->result = 0;	541	SvIV_set (sv_result, 0);
327	/* FALLTHROUGH */	542	/* FALLTHROUGH */
328		543
329	default:	544	default:
330	PUSHs (sv_2mortal (newSViv (req->result)));	545	PUSHs (sv_result);
331	break;	546	break;
332	}	547	}
333		548
334	errno = req->errorno;	549	errno = req->errorno;
335		550
336	PUTBACK;	551	PUTBACK;
337	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);	552	call_sv (req->callback, G_VOID \| G_EVAL \| G_DISCARD);
338	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;
339		559
340	FREETMPS;	560	FREETMPS;
341	LEAVE;	561	LEAVE;
342		562
343	PUTBACK;	563	PUTBACK;
…		…
372	grp->sv2 = 0;	592	grp->sv2 = 0;
373		593
374	eio_grp_cancel (grp);	594	eio_grp_cancel (grp);
375	}	595	}
376		596
377	#ifdef USE_SOCKETS_AS_HANDLES
378	# define TO_SOCKET(x) (win32_get_osfhandle (x))
379	#else
380	# define TO_SOCKET(x) (x)
381	#endif
382
383	static void	597	static void
384	create_respipe (void)	598	create_respipe (void)
385	{	599	{
386	int old_readfd = respipe [0];
387
388	if (respipe [1] >= 0)
389	respipe_close (TO_SOCKET (respipe [1]));
390
391	#ifdef _WIN32
392	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
393	#else
394	if (pipe (respipe))	600	if (s_epipe_renew (&respipe))
395	#endif
396	croak ("unable to initialize result pipe");	601	croak ("IO::AIO: unable to initialize result pipe");
397
398	if (old_readfd >= 0)
399	{
400	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
401	croak ("unable to initialize result pipe(2)");
402
403	respipe_close (respipe [0]);
404	respipe [0] = old_readfd;
405	}
406
407	#ifdef _WIN32
408	int arg = 1;
409	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
410	\|\| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
411	#else
412	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
413	\|\| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
414	#endif
415	croak ("unable to initialize result pipe(3)");
416
417	respipe_osf [0] = TO_SOCKET (respipe [0]);
418	respipe_osf [1] = TO_SOCKET (respipe [1]);
419	}	602	}
420		603
421	static void poll_wait (void)	604	static void poll_wait (void)
422	{	605	{
423	fd_set rfd;
424
425	while (eio_nreqs ())	606	while (eio_nreqs ())
426	{	607	{
427	int size;	608	int size;
428		609
429	X_LOCK (reslock);	610	X_LOCK (reslock);
…		…
433	if (size)	614	if (size)
434	return;	615	return;
435		616
436	etp_maybe_start_thread ();	617	etp_maybe_start_thread ();
437		618
438	FD_ZERO (&rfd);	619	s_epipe_wait (&respipe);
439	FD_SET (respipe [0], &rfd);
440
441	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
442	}	620	}
443	}	621	}
444		622
445	static int poll_cb (void)	623	static int poll_cb (void)
446	{	624	{
…		…
461	static void atfork_child (void)	639	static void atfork_child (void)
462	{	640	{
463	create_respipe ();	641	create_respipe ();
464	}	642	}
465		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
466	static SV *	681	static SV *
467	get_cb (SV *cb_sv)	682	get_cb (SV *cb_sv)
468	{	683	{
469	HV *st;	684	SvGETMAGIC (cb_sv);
470	GV *gvp;	685	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
471	CV *cv;
472
473	if (!SvOK (cb_sv))
474	return 0;
475
476	cv = sv_2cv (cb_sv, &st, &gvp, 0);
477
478	if (!cv)
479	croak ("IO::AIO callback must be undef or a CODE reference");
480
481	return (SV *)cv;
482	}	686	}
483		687
484	#define dREQ \	688	#define dREQ \
485	SV *cb_cv; \	689	SV *cb_cv; \
486	aio_req req; \	690	aio_req req; \
…		…
500	PUTBACK; \	704	PUTBACK; \
501	req_submit (req); \	705	req_submit (req); \
502	SPAGAIN; \	706	SPAGAIN; \
503	\	707	\
504	if (GIMME_V != G_VOID) \	708	if (GIMME_V != G_VOID) \
505	XPUSHs (req_sv (req, AIO_REQ_KLASS));	709	XPUSHs (req_sv (req, aio_req_stash));
506		710
507	MODULE = IO::AIO PACKAGE = IO::AIO	711	MODULE = IO::AIO PACKAGE = IO::AIO
508		712
509	PROTOTYPES: ENABLE	713	PROTOTYPES: ENABLE
510		714
511	BOOT:	715	BOOT:
512	{	716	{
513	stash = gv_stashpv ("IO::AIO", 1);	717	static const struct {
514		718	const char *name;
515	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	719	IV iv;
516	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	720	} *civ, const_iv[] = {
517	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	721	# define const_niv(name, value) { # name, (IV) value },
518	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	722	# define const_iv(name) { # name, (IV) name },
519	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)
520	#ifndef _WIN32	733	#ifndef _WIN32
521	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	734	const_iv (S_IFIFO)
522	#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)
523		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
524	create_respipe ();	817	create_respipe ();
525		818
526	if (eio_init (want_poll, done_poll) < 0)	819	if (eio_init (want_poll, done_poll) < 0)
527	croak ("IO::AIO: unable to initialise eio library");	820	croak ("IO::AIO: unable to initialise eio library");
528		821
529	/* atfork child called in fifo order, so before eio's handler */	822	/* atfork child called in fifo order, so before eio's handler */
530	X_THREAD_ATFORK (0, 0, atfork_child);	823	X_THREAD_ATFORK (0, 0, atfork_child);
531	}	824	}
532		825
533	void	826	void
534	max_poll_reqs (int nreqs)	827	max_poll_reqs (int nreqs)
535	PROTOTYPE: $	828	PROTOTYPE: $
…		…
588	ALIAS:	881	ALIAS:
589	aio_fsync = EIO_FSYNC	882	aio_fsync = EIO_FSYNC
590	aio_fdatasync = EIO_FDATASYNC	883	aio_fdatasync = EIO_FDATASYNC
591	PPCODE:	884	PPCODE:
592	{	885	{
		886	int fd = s_fileno_croak (fh, 0);
593	dREQ;	887	dREQ;
594		888
595	req->type = ix;	889	req->type = ix;
596	req->sv1 = newSVsv (fh);	890	req->sv1 = newSVsv (fh);
597	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: $$$$;$
		899	PPCODE:
		900	{
		901	int fd = s_fileno_croak (fh, 0);
		902	dREQ;
		903
		904	req->type = EIO_SYNC_FILE_RANGE;
		905	req->sv1 = newSVsv (fh);
		906	req->int1 = fd;
		907	req->offs = offset;
		908	req->size = nbytes;
		909	req->int2 = flags;
598		910
599	REQ_SEND (req);	911	REQ_SEND (req);
600	}	912	}
601		913
602	void	914	void
603	aio_close (SV fh, SV callback=&PL_sv_undef)	915	aio_close (SV fh, SV callback=&PL_sv_undef)
604	PROTOTYPE: $;$	916	PROTOTYPE: $;$
605	PPCODE:	917	PPCODE:
606	{	918	{
607	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	919	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		920	int fd = s_fileno_croak (fh, 0);
608	dREQ;	921	dREQ;
609		922
610	if (close_pipe < 0)	923	if (close_pipe < 0)
611	{	924	{
612	int pipefd [2];	925	int pipefd [2];
…		…
620	}	933	}
621		934
622	req->type = EIO_DUP2;	935	req->type = EIO_DUP2;
623	req->int1 = close_pipe;	936	req->int1 = close_pipe;
624	req->sv2 = newSVsv (fh);	937	req->sv2 = newSVsv (fh);
625	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	938	req->int2 = fd;
626		939
627	REQ_SEND (req);	940	REQ_SEND (req);
628	}	941	}
629		942
630	void	943	void
…		…
634	aio_write = EIO_WRITE	947	aio_write = EIO_WRITE
635	PROTOTYPE: $$$$$;$	948	PROTOTYPE: $$$$$;$
636	PPCODE:	949	PPCODE:
637	{	950	{
638	STRLEN svlen;	951	STRLEN svlen;
		952	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
639	char *svptr = SvPVbyte (data, svlen);	953	char *svptr = SvPVbyte (data, svlen);
640	UV len = SvUV (length);	954	UV len = SvUV (length);
641
642	SvUPGRADE (data, SVt_PV);
643	SvPOK_on (data);
644		955
645	if (dataoffset < 0)	956	if (dataoffset < 0)
646	dataoffset += svlen;	957	dataoffset += svlen;
647		958
648	if (dataoffset < 0 \|\| dataoffset > svlen)	959	if (dataoffset < 0 \|\| dataoffset > svlen)
…		…
654	if (!SvOK (length) \|\| len + dataoffset > svlen)	965	if (!SvOK (length) \|\| len + dataoffset > svlen)
655	len = svlen - dataoffset;	966	len = svlen - dataoffset;
656	}	967	}
657	else	968	else
658	{	969	{
659	/* read: grow scalar as necessary */	970	/* read: check type and grow scalar as necessary */
		971	SvUPGRADE (data, SVt_PV);
660	svptr = SvGROW (data, len + dataoffset + 1);	972	svptr = SvGROW (data, len + dataoffset + 1);
661	}	973	}
662		974
663	if (len < 0)
664	croak ("length must not be negative");
665
666	{	975	{
667	dREQ;	976	dREQ;
668		977
669	req->type = ix;	978	req->type = ix;
670	req->sv1 = newSVsv (fh);	979	req->sv1 = newSVsv (fh);
671	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	980	req->int1 = fd;
672	: IoOFP (sv_2io (fh)));
673	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	981	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
674	req->size = len;	982	req->size = len;
675	req->sv2 = SvREFCNT_inc_NN (data);	983	req->sv2 = SvREFCNT_inc (data);
676	req->ptr2 = (char *)svptr + dataoffset;	984	req->ptr2 = (char *)svptr + dataoffset;
677	req->stroffset = dataoffset;	985	req->stroffset = dataoffset;
678		986
679	if (!SvREADONLY (data))	987	if (!SvREADONLY (data))
680	{	988	{
…		…
700		1008
701	REQ_SEND;	1009	REQ_SEND;
702	}	1010	}
703		1011
704	void	1012	void
705	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)
706	PROTOTYPE: $$$$;$	1014	PROTOTYPE: $$$$;$
707	PPCODE:	1015	PPCODE:
708	{	1016	{
		1017	int ifd = s_fileno_croak (in_fh , 0);
		1018	int ofd = s_fileno_croak (out_fh, 1);
709	dREQ;	1019	dREQ;
710		1020
711	req->type = EIO_SENDFILE;	1021	req->type = EIO_SENDFILE;
712	req->sv1 = newSVsv (out_fh);	1022	req->sv1 = newSVsv (out_fh);
713	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1023	req->int1 = ofd;
714	req->sv2 = newSVsv (in_fh);	1024	req->sv2 = newSVsv (in_fh);
715	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1025	req->int2 = ifd;
716	req->offs = SvVAL64 (in_offset);	1026	req->offs = in_offset;
717	req->size = length;	1027	req->size = length;
718		1028
719	REQ_SEND;	1029	REQ_SEND;
720	}	1030	}
721		1031
722	void	1032	void
723	aio_readahead (SV fh, SV offset, IV length, SV *callback=&PL_sv_undef)	1033	aio_readahead (SV fh, off_t offset, size_t length, SV callback=&PL_sv_undef)
724	PROTOTYPE: $$$;$	1034	PROTOTYPE: $$$;$
725	PPCODE:	1035	PPCODE:
726	{	1036	{
		1037	int fd = s_fileno_croak (fh, 0);
727	dREQ;	1038	dREQ;
728		1039
729	req->type = EIO_READAHEAD;	1040	req->type = EIO_READAHEAD;
730	req->sv1 = newSVsv (fh);	1041	req->sv1 = newSVsv (fh);
731	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1042	req->int1 = fd;
732	req->offs = SvVAL64 (offset);	1043	req->offs = offset;
733	req->size = length;	1044	req->size = length;
734		1045
735	REQ_SEND;	1046	REQ_SEND;
736	}	1047	}
737		1048
738	void	1049	void
739	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)	1050	aio_stat (SV8 fh_or_path, SV callback=&PL_sv_undef)
740	ALIAS:	1051	ALIAS:
741	aio_stat = EIO_STAT	1052	aio_stat = EIO_STAT
742	aio_lstat = EIO_LSTAT	1053	aio_lstat = EIO_LSTAT
		1054	aio_statvfs = EIO_STATVFS
743	PPCODE:	1055	PPCODE:
744	{	1056	{
745	dREQ;	1057	dREQ;
746		1058
747	req->sv1 = newSVsv (fh_or_path);	1059	req->sv1 = newSVsv (fh_or_path);
…		…
751	req->type = ix;	1063	req->type = ix;
752	req->ptr1 = SvPVbyte_nolen (req->sv1);	1064	req->ptr1 = SvPVbyte_nolen (req->sv1);
753	}	1065	}
754	else	1066	else
755	{	1067	{
756	req->type = EIO_FSTAT;	1068	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
757	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1069	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
758	}	1070	}
759		1071
760	REQ_SEND;	1072	REQ_SEND;
761	}	1073	}
…		…
856		1168
857	REQ_SEND;	1169	REQ_SEND;
858	}	1170	}
859		1171
860	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
861	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)	1190	aio_unlink (SV8 pathname, SV callback=&PL_sv_undef)
862	ALIAS:	1191	ALIAS:
863	aio_unlink = EIO_UNLINK	1192	aio_unlink = EIO_UNLINK
864	aio_rmdir = EIO_RMDIR	1193	aio_rmdir = EIO_RMDIR
865	aio_readdir = EIO_READDIR	1194	aio_readdir = EIO_READDIR
…		…
907		1236
908	REQ_SEND;	1237	REQ_SEND;
909	}	1238	}
910		1239
911	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: $$$$;$
		1246	PPCODE:
		1247	{
		1248	STRLEN svlen;
		1249	UV len = SvUV (length);
		1250	char *svptr = SvPVbyte (data, svlen);
		1251
		1252	if (offset < 0)
		1253	offset += svlen;
		1254
		1255	if (offset < 0 \|\| offset > svlen)
		1256	croak ("offset outside of scalar");
		1257
		1258	if (!SvOK (length) \|\| len + offset > svlen)
		1259	len = svlen - offset;
		1260
		1261	{
		1262	dREQ;
		1263
		1264	req->type = ix;
		1265	req->size = len;
		1266	req->sv2 = SvREFCNT_inc (data);
		1267	req->ptr2 = (char *)svptr + offset;
		1268	req->int1 = flags;
		1269
		1270	REQ_SEND;
		1271	}
		1272	}
		1273
		1274	void
912	aio_busy (double delay, SV *callback=&PL_sv_undef)	1275	aio_busy (double delay, SV *callback=&PL_sv_undef)
913	PPCODE:	1276	PPCODE:
914	{	1277	{
915	dREQ;	1278	dREQ;
916		1279
…		…
928	dREQ;	1291	dREQ;
929		1292
930	req->type = EIO_GROUP;	1293	req->type = EIO_GROUP;
931		1294
932	req_submit (req);	1295	req_submit (req);
933	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1296	XPUSHs (req_sv (req, aio_grp_stash));
934	}	1297	}
935		1298
936	void	1299	void
937	aio_nop (SV *callback=&PL_sv_undef)	1300	aio_nop (SV *callback=&PL_sv_undef)
938	ALIAS:	1301	ALIAS:
…		…
990		1353
991	int	1354	int
992	poll_fileno()	1355	poll_fileno()
993	PROTOTYPE:	1356	PROTOTYPE:
994	CODE:	1357	CODE:
995	RETVAL = respipe [0];	1358	RETVAL = s_epipe_fd (&respipe);
996	OUTPUT:	1359	OUTPUT:
997	RETVAL	1360	RETVAL
998		1361
999	int	1362	int
1000	poll_cb(...)	1363	poll_cb(...)
…		…
1040	CODE:	1403	CODE:
1041	RETVAL = eio_nthreads ();	1404	RETVAL = eio_nthreads ();
1042	OUTPUT:	1405	OUTPUT:
1043	RETVAL	1406	RETVAL
1044		1407
		1408	int
		1409	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1410	PROTOTYPE: $$$$
		1411	CODE:
		1412	RETVAL = posix_fadvise (fh, offset, length, advice);
		1413	OUTPUT:
		1414	RETVAL
		1415
		1416	ssize_t
		1417	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1418	PROTOTYPE: $$$$
		1419	CODE:
		1420	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1421	OUTPUT:
		1422	RETVAL
		1423
		1424	void
		1425	mmap (SV scalar, size_t length, int prot, int flags, SV fh, off_t offset = 0)
		1426	PROTOTYPE: $$$$$;$
		1427	PPCODE:
		1428	sv_unmagic (scalar, MMAP_MAGIC);
		1429	{
		1430	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1431	void addr = (void )mmap (0, length, prot, flags, fd, offset);
		1432	if (addr == (void *)-1)
		1433	XSRETURN_NO;
		1434
		1435	sv_force_normal (scalar);
		1436
		1437	/* we store the length in mg_obj, as namlen is I32 :/ */
		1438	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1439	->mg_obj = (SV *)length;
		1440
		1441	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1442
		1443	if (!(prot & PROT_WRITE))
		1444	SvREADONLY_on (scalar);
		1445
		1446	if (SvLEN (scalar))
		1447	Safefree (SvPVX (scalar));
		1448
		1449	SvPVX (scalar) = (char *)addr;
		1450	SvCUR_set (scalar, length);
		1451	SvLEN_set (scalar, 0);
		1452	SvPOK_only (scalar);
		1453
		1454	XSRETURN_YES;
		1455	}
		1456
		1457	void
		1458	munmap (SV *scalar)
		1459	PROTOTYPE: $
		1460	CODE:
		1461	sv_unmagic (scalar, MMAP_MAGIC);
		1462
		1463	int
		1464	madvise (SV *scalar, off_t offset, off_t length, IV advice_or_prot)
		1465	ALIAS:
		1466	mprotect = 1
		1467	PROTOTYPE: $$$$
		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
1045	void _on_next_submit (SV *cb)	1523	void _on_next_submit (SV *cb)
1046	CODE:	1524	CODE:
1047	SvREFCNT_dec (on_next_submit);	1525	SvREFCNT_dec (on_next_submit);
1048	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1526	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1049		1527
…		…
1063	if (GIMME_V != G_VOID)	1541	if (GIMME_V != G_VOID)
1064	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1542	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1065		1543
1066	if (items > 1)	1544	if (items > 1)
1067	{	1545	{
1068	SV *cb_cv = get_cb (callback);	1546	SV *cb_cv =get_cb (callback);
1069		1547
1070	SvREFCNT_dec (req->callback);	1548	SvREFCNT_dec (req->callback);
1071	req->callback = SvREFCNT_inc (cb_cv);	1549	req->callback = SvREFCNT_inc (cb_cv);
1072	}	1550	}
1073	}	1551	}
…		…
1110	AV *av;	1588	AV *av;
1111		1589
1112	grp->errorno = errno;	1590	grp->errorno = errno;
1113		1591
1114	av = newAV ();	1592	av = newAV ();
		1593	av_extend (av, items - 1);
1115		1594
1116	for (i = 1; i < items; ++i )	1595	for (i = 1; i < items; ++i )
1117	av_push (av, newSVsv (ST (i)));	1596	av_push (av, newSVsv (ST (i)));
1118		1597
1119	SvREFCNT_dec (grp->sv1);	1598	SvREFCNT_dec (grp->sv1);
…		…
1133	void	1612	void
1134	feed (aio_req grp, SV *callback=&PL_sv_undef)	1613	feed (aio_req grp, SV *callback=&PL_sv_undef)
1135	CODE:	1614	CODE:
1136	{	1615	{
1137	SvREFCNT_dec (grp->sv2);	1616	SvREFCNT_dec (grp->sv2);
1138	grp->sv2 = newSVsv (callback);	1617	grp->sv2 = newSVsv (callback);
		1618	grp->feed = aio_grp_feed;
1139		1619
1140	if (grp->int2 <= 0)	1620	if (grp->int2 <= 0)
1141	grp->int2 = 2;	1621	grp->int2 = 2;
1142		1622
1143	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 1.130 by root, Thu Oct 2 11:35:03 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 1.130 by root, Thu Oct 2 11:35:03 2008 UTC vs.
Revision 1.171 by root, Wed Aug 4 17:16:19 2010 UTC