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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.126 by root, Thu Sep 25 07:56:07 2008 UTC vs.
Revision 1.185 by root, Thu Jul 7 22:36:18 2011 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
		16	#include <sys/statvfs.h>
14	#include <limits.h>	17	#include <limits.h>
15	#include <fcntl.h>	18	#include <fcntl.h>
16	#include <sched.h>	19	#include <sched.h>
		20
		21	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		22	# include <sys/mman.h>
		23	#endif
17		24
18	/* perl namespace pollution */	25	/* perl namespace pollution */
19	#undef VERSION	26	#undef VERSION
20		27
21	#ifdef _WIN32	28	#ifdef _WIN32
…		…
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	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
86	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 */
87		112
88	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
89	#define AIO_GRP_KLASS "IO::AIO::GRP"
90		114
91	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
92	SV *callback; \	116	SV *callback; \
93	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
94	STRLEN stroffset; \	118	STRLEN stroffset; \
95	SV *self;	119	SV *self;
96		120
97	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
98		122
		123	#include "libeio/config.h"
99	#include "libeio/eio.h"	124	#include "libeio/eio.h"
		125
		126	/* Linux/others */
		127	#ifndef O_ASYNC
		128	# define O_ASYNC 0
		129	#endif
		130	#ifndef O_DIRECT
		131	# define O_DIRECT 0
		132	#endif
		133	#ifndef O_NOATIME
		134	# define O_NOATIME 0
		135	#endif
		136
		137	/* POSIX */
		138	#ifndef O_CLOEXEC
		139	# define O_CLOEXEC 0
		140	#endif
		141	#ifndef O_NOFOLLOW
		142	# define O_NOFOLLOW 0
		143	#endif
		144	#ifndef O_NOCTTY
		145	# define O_NOCTTY 0
		146	#endif
		147	#ifndef O_NONBLOCK
		148	# define O_NONBLOCK 0
		149	#endif
		150	#ifndef O_EXEC
		151	# define O_EXEC 0
		152	#endif
		153	#ifndef O_SEARCH
		154	# define O_SEARCH 0
		155	#endif
		156	#ifndef O_DIRECTORY
		157	# define O_DIRECTORY 0
		158	#endif
		159	#ifndef O_DSYNC
		160	# define O_DSYNC 0
		161	#endif
		162	#ifndef O_RSYNC
		163	# define O_RSYNC 0
		164	#endif
		165	#ifndef O_SYNC
		166	# define O_SYNC 0
		167	#endif
		168	#ifndef O_TTY_INIT
		169	# define O_TTY_INIT 0
		170	#endif
		171
		172	#ifndef POSIX_FADV_NORMAL
		173	# define POSIX_FADV_NORMAL 0
		174	#endif
		175	#ifndef POSIX_FADV_SEQUENTIAL
		176	# define POSIX_FADV_SEQUENTIAL 0
		177	#endif
		178	#ifndef POSIX_FADV_RANDOM
		179	# define POSIX_FADV_RANDOM 0
		180	#endif
		181	#ifndef POSIX_FADV_NOREUSE
		182	# define POSIX_FADV_NOREUSE 0
		183	#endif
		184	#ifndef POSIX_FADV_WILLNEED
		185	# define POSIX_FADV_WILLNEED 0
		186	#endif
		187	#ifndef POSIX_FADV_DONTNEED
		188	# define POSIX_FADV_DONTNEED 0
		189	#endif
		190
		191	#if !HAVE_POSIX_FADVISE
		192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		193	#endif
		194
		195	#ifndef POSIX_MADV_NORMAL
		196	# define POSIX_MADV_NORMAL 0
		197	#endif
		198	#ifndef POSIX_MADV_SEQUENTIAL
		199	# define POSIX_MADV_SEQUENTIAL 0
		200	#endif
		201	#ifndef POSIX_MADV_RANDOM
		202	# define POSIX_MADV_RANDOM 0
		203	#endif
		204	#ifndef POSIX_MADV_WILLNEED
		205	# define POSIX_MADV_WILLNEED 0
		206	#endif
		207	#ifndef POSIX_MADV_DONTNEED
		208	# define POSIX_MADV_DONTNEED 0
		209	#endif
		210
		211	#if !HAVE_POSIX_MADVISE
		212	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		213	#endif
		214
		215	#ifndef PROT_NONE
		216	# define PROT_NONE 0
		217	#endif
		218	#ifndef PROT_READ
		219	# define PROT_READ 0
		220	#endif
		221	#ifndef PROT_WRITE
		222	# define PROT_READ 0
		223	#endif
		224	#ifndef PROT_EXEC
		225	# define PROT_EXEC 0
		226	#endif
		227
		228	#ifndef ST_NODEV
		229	# define ST_NODEV 0
		230	#endif
		231	#ifndef ST_NOEXEC
		232	# define ST_NOEXEC 0
		233	#endif
		234	#ifndef ST_SYNCHRONOUS
		235	# define ST_SYNCHRONOUS 0
		236	#endif
		237	#ifndef ST_MANDLOCK
		238	# define ST_MANDLOCK 0
		239	#endif
		240	#ifndef ST_WRITE
		241	# define ST_WRITE 0
		242	#endif
		243	#ifndef ST_APPEND
		244	# define ST_APPEND 0
		245	#endif
		246	#ifndef ST_IMMUTABLE
		247	# define ST_IMMUTABLE 0
		248	#endif
		249	#ifndef ST_NOATIME
		250	# define ST_NOATIME 0
		251	#endif
		252	#ifndef ST_NODIRATIME
		253	# define ST_NODIRATIME 0
		254	#endif
		255	#ifndef ST_RELATIME
		256	# define ST_RELATIME 0
		257	#endif
		258
		259	#ifndef S_IFIFO
		260	# define S_IFIFO 0
		261	#endif
		262	#ifndef S_IFCHR
		263	# define S_IFCHR 0
		264	#endif
		265	#ifndef S_IFBLK
		266	# define S_IFBLK 0
		267	#endif
		268	#ifndef S_IFLNK
		269	# define S_IFLNK 0
		270	#endif
		271	#ifndef S_IFREG
		272	# define S_IFREG 0
		273	#endif
		274	#ifndef S_IFDIR
		275	# define S_IFDIR 0
		276	#endif
		277	#ifndef S_IFWHT
		278	# define S_IFWHT 0
		279	#endif
		280	#ifndef S_IFSOCK
		281	# define S_IFSOCK 0
		282	#endif
		283
		284	#ifndef MAP_ANONYMOUS
		285	# ifdef MAP_ANON
		286	# define MAP_ANONYMOUS MAP_ANON
		287	# else
		288	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		289	# endif
		290	#endif
		291	#ifndef MAP_HUGETLB
		292	# define MAP_HUGETLB 0
		293	#endif
		294	#ifndef MAP_LOCKED
		295	# define MAP_LOCKED 0
		296	#endif
		297	#ifndef MAP_NORESERVE
		298	# define MAP_NORESERVE 0
		299	#endif
		300	#ifndef MAP_POPULATE
		301	# define MAP_POPULATE 0
		302	#endif
		303	#ifndef MAP_NONBLOCK
		304	# define MAP_NONBLOCK 0
		305	#endif
		306
		307	#ifndef makedev
		308	# define makedev(maj,min) (((maj) << 8) | (min))
		309	#endif
		310	#ifndef major
		311	# define major(dev) ((dev) >> 8)
		312	#endif
		313	#ifndef minor
		314	# define minor(dev) ((dev) & 0xff)
		315	#endif
		316
		317	#ifndef PAGESIZE
		318	# define PAGESIZE sysconf (_SC_PAGESIZE)
		319	#endif
100		320
101	static int req_invoke (eio_req *req);	321	static int req_invoke (eio_req *req);
102	#define EIO_FINISH(req) req_invoke (req)	322	#define EIO_FINISH(req) req_invoke (req)
103	static void aio_grp_feed (eio_req *grp);
104	#define EIO_FEED(req) aio_grp_feed (req)
105	static void req_destroy (eio_req *grp);	323	static void req_destroy (eio_req *grp);
106	#define EIO_DESTROY(req) req_destroy (req)	324	#define EIO_DESTROY(req) req_destroy (req)
107		325
108	enum {	326	enum {
109	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
…		…
116		334
117	static SV *on_next_submit;	335	static SV *on_next_submit;
118	static int next_pri = EIO_PRI_DEFAULT;	336	static int next_pri = EIO_PRI_DEFAULT;
119	static int max_outstanding;	337	static int max_outstanding;
120		338
121	static int respipe_osf [2], respipe [2] = { -1, -1 };	339	static s_epipe respipe;
122		340
123	static void req_destroy (aio_req req);	341	static void req_destroy (aio_req req);
124	static void req_cancel (aio_req req);	342	static void req_cancel (aio_req req);
125		343
126	static void want_poll (void)	344	static void want_poll (void)
127	{	345	{
128	/* write a dummy byte to the pipe so fh becomes ready */	346	/* write a dummy byte to the pipe so fh becomes ready */
129	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	347	s_epipe_signal (&respipe);
130	}	348	}
131		349
132	static void done_poll (void)	350	static void done_poll (void)
133	{	351	{
134	/* read any signals sent by the worker threads */	352	/* read any signals sent by the worker threads */
135	char buf [4];	353	s_epipe_drain (&respipe);
136	while (respipe_read (respipe [0], buf, 4) == 4)
137	;
138	}	354	}
139		355
140	/* must be called at most once */	356	/* must be called at most once */
141	static SV *req_sv (aio_req req, const char *klass)	357	static SV *req_sv (aio_req req, HV *stash)
142	{	358	{
143	if (!req->self)	359	if (!req->self)
144	{	360	{
145	req->self = (SV *)newHV ();	361	req->self = (SV *)newHV ();
146	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
147	}	363	}
148		364
149	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
150	}	366	}
151		367
152	static aio_req SvAIO_REQ (SV *sv)	368	static aio_req SvAIO_REQ (SV *sv)
153	{	369	{
154	MAGIC *mg;	370	MAGIC *mg;
155		371
156	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	372	if (!SvROK (sv)
		373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		374	&& SvSTASH (SvRV (sv)) != aio_req_stash
		375	&& !sv_derived_from (sv, "IO::AIO::REQ")))
157	croak ("object of class " AIO_REQ_KLASS " expected");	376	croak ("object of class IO::AIO::REQ expected");
158		377
159	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
160		379
161	return mg ? (aio_req)mg->mg_ptr : 0;	380	return mg ? (aio_req)mg->mg_ptr : 0;
162	}	381	}
…		…
168	dSP;	387	dSP;
169		388
170	ENTER;	389	ENTER;
171	SAVETMPS;	390	SAVETMPS;
172	PUSHMARK (SP);	391	PUSHMARK (SP);
173	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	392	XPUSHs (req_sv (grp, aio_grp_stash));
174	PUTBACK;	393	PUTBACK;
175	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	394	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
176	SPAGAIN;	395	SPAGAIN;
177	FREETMPS;	396	FREETMPS;
178	LEAVE;	397	LEAVE;
…		…
181		400
182	static void req_submit (eio_req *req)	401	static void req_submit (eio_req *req)
183	{	402	{
184	eio_submit (req);	403	eio_submit (req);
185		404
186	if (on_next_submit)	405	if (expect_false (on_next_submit))
187	{	406	{
188	dSP;	407	dSP;
189	SV *cb = sv_2mortal (on_next_submit);	408	SV *cb = sv_2mortal (on_next_submit);
190		409
191	on_next_submit = 0;	410	on_next_submit = 0;
…		…
196	}	415	}
197	}	416	}
198		417
199	static int req_invoke (eio_req *req)	418	static int req_invoke (eio_req *req)
200	{	419	{
201	dSP;
202
203	if (req->flags & FLAG_SV2_RO_OFF)	420	if (req->flags & FLAG_SV2_RO_OFF)
204	SvREADONLY_off (req->sv2);	421	SvREADONLY_off (req->sv2);
205		422
206	if (!EIO_CANCELLED (req) && SvOK (req->callback))	423	if (!EIO_CANCELLED (req) && req->callback)
207	{	424	{
		425	dSP;
		426	static SV *sv_result_cache; /* caches the result integer SV */
		427	SV *sv_result;
		428
208	ENTER;	429	ENTER;
209	SAVETMPS;	430	SAVETMPS;
210	PUSHMARK (SP);	431	PUSHMARK (SP);
211	EXTEND (SP, 1);	432	EXTEND (SP, 1);
		433
		434	/* do not recreate the result IV from scratch each time */
		435	if (expect_true (sv_result_cache))
		436	{
		437	sv_result = sv_result_cache; sv_result_cache = 0;
		438	SvIV_set (sv_result, req->result);
		439	SvIOK_only (sv_result);
		440	}
		441	else
		442	{
		443	sv_result = newSViv (req->result);
		444	SvREADONLY_on (sv_result);
		445	}
212		446
213	switch (req->type)	447	switch (req->type)
214	{	448	{
215	case EIO_READDIR:	449	case EIO_READDIR:
216	{	450	{
217	SV *rv = &PL_sv_undef;	451	SV *rv = &PL_sv_undef;
218		452
219	if (req->result >= 0)	453	if (req->result >= 0)
220	{	454	{
221	int i;	455	int i;
222	char *buf = req->ptr2;	456	char *names = (char *)req->ptr2;
		457	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
223	AV *av = newAV ();	458	AV *av = newAV ();
224		459
225	av_extend (av, req->result - 1);	460	av_extend (av, req->result - 1);
226		461
227	for (i = 0; i < req->result; ++i)	462	for (i = 0; i < req->result; ++i)
228	{	463	{
229	SV *sv = newSVpv (buf, 0);	464	if (req->int1 & EIO_READDIR_DENTS)
		465	{
		466	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
230		467
		468	if (req->int1 & EIO_READDIR_CUSTOM2)
		469	{
		470	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		471	AV *avent = newAV ();
		472
		473	av_extend (avent, 2);
		474
		475	if (!sv_type [ent->type])
		476	{
		477	sv_type [ent->type] = newSViv (ent->type);
		478	SvREADONLY_on (sv_type [ent->type]);
		479	}
		480
		481	av_store (avent, 0, namesv);
		482	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		483	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		484
		485	av_store (av, i, newRV_noinc ((SV *)avent));
		486	}
		487	else
231	av_store (av, i, sv);	488	av_store (av, i, namesv);
		489
		490	++ent;
		491	}
		492	else
		493	{
		494	SV *name = newSVpv (names, 0);
		495	av_store (av, i, name);
232	buf += SvCUR (sv) + 1;	496	names += SvCUR (name) + 1;
		497	}
233	}	498	}
234		499
235	rv = sv_2mortal (newRV_noinc ((SV *)av));	500	rv = sv_2mortal (newRV_noinc ((SV *)av));
236	}	501	}
237		502
238	PUSHs (rv);	503	PUSHs (rv);
		504
		505	if (req->int1 & EIO_READDIR_CUSTOM1)
		506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
239	}	507	}
240	break;	508	break;
241		509
242	case EIO_OPEN:	510	case EIO_OPEN:
243	{	511	{
…		…
249	GV *gv = (GV *)sv_newmortal ();	517	GV *gv = (GV *)sv_newmortal ();
250	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
251	char sym [64];	519	char sym [64];
252	int symlen;	520	int symlen;
253		521
254	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
255	gv_init (gv, stash, sym, symlen, 0);	523	gv_init (gv, aio_stash, sym, symlen, 0);
256		524
257	symlen = snprintf (	525	symlen = snprintf (
258	sym,	526	sym,
259	sizeof (sym),	527	sizeof (sym),
260	"%s&=%d",	528	"%s&=%d",
261	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	529	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
262	req->result	530	(int)req->result
263	);	531	);
264		532
265	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	533	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
266	fh = (SV *)gv;	534	fh = (SV *)gv;
267	}	535	}
268		536
269	PUSHs (fh);	537	PUSHs (fh);
270	}	538	}
		539	break;
		540
		541	case EIO_STATVFS:
		542	case EIO_FSTATVFS:
		543	{
		544	SV *rv = &PL_sv_undef;
		545
		546	if (req->result >= 0)
		547	{
		548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		549	HV *hv = newHV ();
		550
		551	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		552
		553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		554	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		555	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		556	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		557	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		558	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		559	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		560	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		561	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		563	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		564	}
		565
		566	PUSHs (rv);
		567	}
		568
271	break;	569	break;
272		570
273	case EIO_GROUP:	571	case EIO_GROUP:
274	req->int1 = 2; /* mark group as finished */	572	req->int1 = 2; /* mark group as finished */
275		573
…		…
287	case EIO_NOP:	585	case EIO_NOP:
288	case EIO_BUSY:	586	case EIO_BUSY:
289	break;	587	break;
290		588
291	case EIO_READLINK:	589	case EIO_READLINK:
		590	case EIO_REALPATH:
292	if (req->result > 0)	591	if (req->result > 0)
293	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	592	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
294	break;	593	break;
295		594
296	case EIO_STAT:	595	case EIO_STAT:
297	case EIO_LSTAT:	596	case EIO_LSTAT:
298	case EIO_FSTAT:	597	case EIO_FSTAT:
299	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	598	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
300	PL_laststatval = req->result;	599	PL_laststatval = req->result;
301	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	600	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
302	PUSHs (sv_2mortal (newSViv (req->result)));	601	PUSHs (sv_result);
303	break;	602	break;
304		603
305	case EIO_READ:	604	case EIO_READ:
		605	{
306	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	606	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
307	*SvEND (req->sv2) = 0;	607	*SvEND (req->sv2) = 0;
308	PUSHs (sv_2mortal (newSViv (req->result)));	608	SvPOK_only (req->sv2);
		609	SvSETMAGIC (req->sv2);
		610	PUSHs (sv_result);
		611	}
309	break;	612	break;
310		613
311	case EIO_DUP2:	614	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
312	if (req->result > 0)	615	if (req->result > 0)
313	req->result = 0;	616	SvIV_set (sv_result, 0);
314	/* FALLTHROUGH */	617	/* FALLTHROUGH */
315		618
316	default:	619	default:
317	PUSHs (sv_2mortal (newSViv (req->result)));	620	PUSHs (sv_result);
318	break;	621	break;
319	}	622	}
320		623
321	errno = req->errorno;	624	errno = req->errorno;
322		625
323	PUTBACK;	626	PUTBACK;
324	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	627	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
325	SPAGAIN;	628	SPAGAIN;
		629
		630	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		631	SvREFCNT_dec (sv_result);
		632	else
		633	sv_result_cache = sv_result;
326		634
327	FREETMPS;	635	FREETMPS;
328	LEAVE;	636	LEAVE;
329		637
330	PUTBACK;	638	PUTBACK;
…		…
359	grp->sv2 = 0;	667	grp->sv2 = 0;
360		668
361	eio_grp_cancel (grp);	669	eio_grp_cancel (grp);
362	}	670	}
363		671
364	#ifdef USE_SOCKETS_AS_HANDLES
365	# define TO_SOCKET(x) (win32_get_osfhandle (x))
366	#else
367	# define TO_SOCKET(x) (x)
368	#endif
369
370	static void
371	create_respipe (void)	672	static void create_respipe (void)
372	{	673	{
373	int old_readfd = respipe [0];
374
375	if (respipe [1] >= 0)
376	respipe_close (TO_SOCKET (respipe [1]));
377
378	#ifdef _WIN32
379	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
380	#else
381	if (pipe (respipe))	674	if (s_epipe_renew (&respipe))
382	#endif
383	croak ("unable to initialize result pipe");	675	croak ("IO::AIO: unable to initialize result pipe");
384
385	if (old_readfd >= 0)
386	{
387	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
388	croak ("unable to initialize result pipe(2)");
389
390	respipe_close (respipe [0]);
391	respipe [0] = old_readfd;
392	}
393
394	#ifdef _WIN32
395	int arg = 1;
396	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
397	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
398	#else
399	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
400	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
401	#endif
402	croak ("unable to initialize result pipe(3)");
403
404	respipe_osf [0] = TO_SOCKET (respipe [0]);
405	respipe_osf [1] = TO_SOCKET (respipe [1]);
406	}	676	}
407		677
408	static void poll_wait (void)	678	static void poll_wait (void)
409	{	679	{
410	fd_set rfd;
411
412	while (eio_nreqs ())	680	while (eio_nreqs ())
413	{	681	{
414	int size;	682	int size;
415		683
416	X_LOCK (reslock);	684	X_LOCK (reslock);
…		…
420	if (size)	688	if (size)
421	return;	689	return;
422		690
423	etp_maybe_start_thread ();	691	etp_maybe_start_thread ();
424		692
425	FD_ZERO (&rfd);	693	s_epipe_wait (&respipe);
426	FD_SET (respipe [0], &rfd);
427
428	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
429	}	694	}
430	}	695	}
431		696
432	static int poll_cb (void)	697	static int poll_cb (void)
433	{	698	{
…		…
448	static void atfork_child (void)	713	static void atfork_child (void)
449	{	714	{
450	create_respipe ();	715	create_respipe ();
451	}	716	}
452		717
		718	/*****************************************************************************/
		719
		720	#if !_POSIX_MAPPED_FILES
		721	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		722	# define munmap(addr,length) (errno = ENOSYS, -1)
		723	#endif
		724
		725	#if !_POSIX_MEMORY_PROTECTION
		726	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		727	# define PROT_NONE 0
		728	# define PROT_WRITE 0
		729	# define MAP_PRIVATE 0
		730	# define MAP_SHARED 0
		731	# define MAP_FIXED 0
		732	#endif
		733
		734	#define MMAP_MAGIC PERL_MAGIC_ext
		735
		736	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		737	{
		738	int old_errno = errno;
		739	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		740	errno = old_errno;
		741
		742	mg->mg_obj = 0; /* just in case */
		743
		744	SvREADONLY_off (sv);
		745
		746	if (SvPVX (sv) != mg->mg_ptr)
		747	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		748
		749	SvCUR_set (sv, 0);
		750	SvPVX (sv) = 0;
		751	SvOK_off (sv);
		752
		753	return 0;
		754	}
		755
		756	static MGVTBL mmap_vtbl = {
		757	0, 0, 0, 0, mmap_free
		758	};
		759
		760	/*****************************************************************************/
		761
		762	static SV * get_cb (SV *cb_sv)
		763	{
		764	SvGETMAGIC (cb_sv);
		765	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		766	}
		767
453	#define dREQ \	768	#define dREQ \
		769	SV *cb_cv; \
454	aio_req req; \	770	aio_req req; \
455	int req_pri = next_pri; \	771	int req_pri = next_pri; \
456	next_pri = EIO_PRI_DEFAULT; \	772	next_pri = EIO_PRI_DEFAULT; \
457	\	773	\
458	if (SvOK (callback) && !SvROK (callback)) \	774	cb_cv = get_cb (callback); \
459	croak ("callback must be undef or of reference type"); \
460	\	775	\
461	Newz (0, req, 1, eio_req); \	776	Newz (0, req, 1, eio_req); \
462	if (!req) \	777	if (!req) \
463	croak ("out of memory during eio_req allocation"); \	778	croak ("out of memory during eio_req allocation"); \
464	\	779	\
465	req->callback = newSVsv (callback); \	780	req->callback = SvREFCNT_inc (cb_cv); \
466	req->pri = req_pri	781	req->pri = req_pri
467		782
468	#define REQ_SEND \	783	#define REQ_SEND \
469	PUTBACK; \	784	PUTBACK; \
470	req_submit (req); \	785	req_submit (req); \
471	SPAGAIN; \	786	SPAGAIN; \
472	\	787	\
473	if (GIMME_V != G_VOID) \	788	if (GIMME_V != G_VOID) \
474	XPUSHs (req_sv (req, AIO_REQ_KLASS));	789	XPUSHs (req_sv (req, aio_req_stash));
475		790
476	MODULE = IO::AIO PACKAGE = IO::AIO	791	MODULE = IO::AIO PACKAGE = IO::AIO
477		792
478	PROTOTYPES: ENABLE	793	PROTOTYPES: ENABLE
479		794
480	BOOT:	795	BOOT:
481	{	796	{
		797	static const struct {
		798	const char *name;
		799	IV iv;
		800	} *civ, const_iv[] = {
		801	# define const_niv(name, value) { # name, (IV) value },
		802	# define const_iv(name) { # name, (IV) name },
		803	# define const_eio(name) { # name, (IV) EIO_ ## name },
		804	const_iv (EXDEV)
		805	const_iv (ENOSYS)
		806	const_iv (O_RDONLY)
		807	const_iv (O_WRONLY)
		808	const_iv (O_RDWR)
		809	const_iv (O_CREAT)
		810	const_iv (O_TRUNC)
		811	const_iv (O_EXCL)
		812	const_iv (O_APPEND)
		813
		814	const_iv (O_ASYNC)
		815	const_iv (O_DIRECT)
		816	const_iv (O_NOATIME)
		817
		818	const_iv (O_CLOEXEC)
		819	const_iv (O_NOCTTY)
		820	const_iv (O_NOFOLLOW)
		821	const_iv (O_NONBLOCK)
		822	const_iv (O_EXEC)
		823	const_iv (O_SEARCH)
		824	const_iv (O_DIRECTORY)
		825	const_iv (O_DSYNC)
		826	const_iv (O_RSYNC)
		827	const_iv (O_SYNC)
		828	const_iv (O_TTY_INIT)
		829
		830	const_iv (S_IFIFO)
		831	const_iv (S_IFCHR)
		832	const_iv (S_IFBLK)
		833	const_iv (S_IFLNK)
		834	const_iv (S_IFREG)
		835	const_iv (S_IFDIR)
		836	const_iv (S_IFWHT)
		837	const_iv (S_IFSOCK)
		838	const_iv (S_IFMT)
		839
		840	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		841	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		842	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		843	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		844	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		845	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		846
		847	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		848	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		849	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		850	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		851	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		852
		853	const_iv (ST_RDONLY)
		854	const_iv (ST_NOSUID)
		855	const_iv (ST_NODEV)
		856	const_iv (ST_NOEXEC)
		857	const_iv (ST_SYNCHRONOUS)
		858	const_iv (ST_MANDLOCK)
		859	const_iv (ST_WRITE)
		860	const_iv (ST_APPEND)
		861	const_iv (ST_IMMUTABLE)
		862	const_iv (ST_NOATIME)
		863	const_iv (ST_NODIRATIME)
		864	const_iv (ST_RELATIME)
		865
		866	const_iv (PROT_NONE)
		867	const_iv (PROT_EXEC)
		868	const_iv (PROT_READ)
		869	const_iv (PROT_WRITE)
		870
		871	/*const_iv (MAP_FIXED)*/
		872	const_iv (MAP_PRIVATE)
		873	const_iv (MAP_SHARED)
		874	const_iv (MAP_ANONYMOUS)
		875
		876	/* linuxish */
		877	const_iv (MAP_HUGETLB)
		878	const_iv (MAP_LOCKED)
		879	const_iv (MAP_NORESERVE)
		880	const_iv (MAP_POPULATE)
		881	const_iv (MAP_NONBLOCK)
		882
		883	const_eio (MCL_FUTURE)
		884	const_eio (MCL_CURRENT)
		885
		886	const_eio (MS_ASYNC)
		887	const_eio (MS_INVALIDATE)
		888	const_eio (MS_SYNC)
		889
		890	const_eio (MT_MODIFY)
		891
		892	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		893	const_eio (SYNC_FILE_RANGE_WRITE)
		894	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		895
		896	const_eio (FALLOC_FL_KEEP_SIZE)
		897
		898	const_eio (READDIR_DENTS)
		899	const_eio (READDIR_DIRS_FIRST)
		900	const_eio (READDIR_STAT_ORDER)
		901	const_eio (READDIR_FOUND_UNKNOWN)
		902
		903	const_eio (DT_UNKNOWN)
		904	const_eio (DT_FIFO)
		905	const_eio (DT_CHR)
		906	const_eio (DT_DIR)
		907	const_eio (DT_BLK)
		908	const_eio (DT_REG)
		909	const_eio (DT_LNK)
		910	const_eio (DT_SOCK)
		911	const_eio (DT_WHT)
		912	};
		913
482	stash = gv_stashpv ("IO::AIO", 1);	914	aio_stash = gv_stashpv ("IO::AIO" , 1);
		915	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		916	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
483		917
484	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	918	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
485	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	919	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
486	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
487	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
488	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
489	#ifndef _WIN32
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
491	#endif
492		920
		921	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
		922
493	create_respipe ();	923	create_respipe ();
494		924
495	if (eio_init (want_poll, done_poll) < 0)	925	if (eio_init (want_poll, done_poll) < 0)
496	croak ("IO::AIO: unable to initialise eio library");	926	croak ("IO::AIO: unable to initialise eio library");
497		927
498	/* atfork child called in fifo order, so before eio's handler */	928	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);	929	X_THREAD_ATFORK (0, 0, atfork_child);
500	}	930	}
501		931
502	void	932	void
503	max_poll_reqs (int nreqs)	933	max_poll_reqs (unsigned int nreqs)
504	PROTOTYPE: $	934	PROTOTYPE: $
505	CODE:	935	CODE:
506	eio_set_max_poll_reqs (nreqs);	936	eio_set_max_poll_reqs (nreqs);
507		937
508	void	938	void
…		…
510	PROTOTYPE: $	940	PROTOTYPE: $
511	CODE:	941	CODE:
512	eio_set_max_poll_time (nseconds);	942	eio_set_max_poll_time (nseconds);
513		943
514	void	944	void
515	min_parallel (int nthreads)	945	min_parallel (unsigned int nthreads)
516	PROTOTYPE: $	946	PROTOTYPE: $
517	CODE:	947	CODE:
518	eio_set_min_parallel (nthreads);	948	eio_set_min_parallel (nthreads);
519		949
520	void	950	void
521	max_parallel (int nthreads)	951	max_parallel (unsigned int nthreads)
522	PROTOTYPE: $	952	PROTOTYPE: $
523	CODE:	953	CODE:
524	eio_set_max_parallel (nthreads);	954	eio_set_max_parallel (nthreads);
525		955
526	void	956	void
527	max_idle (int nthreads)	957	max_idle (unsigned int nthreads)
528	PROTOTYPE: $	958	PROTOTYPE: $
529	CODE:	959	CODE:
530	eio_set_max_idle (nthreads);	960	eio_set_max_idle (nthreads);
531		961
532	void	962	void
		963	idle_timeout (unsigned int seconds)
		964	PROTOTYPE: $
		965	CODE:
		966	eio_set_idle_timeout (seconds);
		967
		968	void
533	max_outstanding (int maxreqs)	969	max_outstanding (unsigned int maxreqs)
534	PROTOTYPE: $	970	PROTOTYPE: $
535	CODE:	971	CODE:
536	max_outstanding = maxreqs;	972	max_outstanding = maxreqs;
537		973
538	void	974	void
539	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	975	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
540	PROTOTYPE: $$$;$
541	PPCODE:	976	PPCODE:
542	{	977	{
543	dREQ;	978	dREQ;
544		979
545	req->type = EIO_OPEN;	980	req->type = EIO_OPEN;
…		…
551	REQ_SEND;	986	REQ_SEND;
552	}	987	}
553		988
554	void	989	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	990	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	991	ALIAS:
558	aio_fsync = EIO_FSYNC	992	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	993	aio_fdatasync = EIO_FDATASYNC
560	PPCODE:	994	PPCODE:
561	{	995	{
		996	int fd = s_fileno_croak (fh, 0);
562	dREQ;	997	dREQ;
563		998
564	req->type = ix;	999	req->type = ix;
565	req->sv1 = newSVsv (fh);	1000	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1001	req->int1 = fd;
567		1002
568	REQ_SEND (req);	1003	REQ_SEND (req);
569	}	1004	}
570		1005
571	void	1006	void
		1007	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1008	PPCODE:
		1009	{
		1010	int fd = s_fileno_croak (fh, 0);
		1011	dREQ;
		1012
		1013	req->type = EIO_SYNC_FILE_RANGE;
		1014	req->sv1 = newSVsv (fh);
		1015	req->int1 = fd;
		1016	req->offs = offset;
		1017	req->size = nbytes;
		1018	req->int2 = flags;
		1019
		1020	REQ_SEND (req);
		1021	}
		1022
		1023	void
		1024	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1025	PPCODE:
		1026	{
		1027	int fd = s_fileno_croak (fh, 0);
		1028	dREQ;
		1029
		1030	req->type = EIO_FALLOCATE;
		1031	req->sv1 = newSVsv (fh);
		1032	req->int1 = fd;
		1033	req->int2 = mode;
		1034	req->offs = offset;
		1035	req->size = len;
		1036
		1037	REQ_SEND (req);
		1038	}
		1039
		1040	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1041	aio_close (SV *fh, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	1042	PPCODE:
575	{	1043	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1044	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		1045	int fd = s_fileno_croak (fh, 0);
577	dREQ;	1046	dREQ;
578		1047
579	if (close_pipe < 0)	1048	if (close_pipe < 0)
580	{	1049	{
581	int pipefd [2];	1050	int pipefd [2];
…		…
589	}	1058	}
590		1059
591	req->type = EIO_DUP2;	1060	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	1061	req->int1 = close_pipe;
593	req->sv2 = newSVsv (fh);	1062	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1063	req->int2 = fd;
595		1064
596	REQ_SEND (req);	1065	REQ_SEND (req);
597	}	1066	}
598		1067
599	void	1068	void
600	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1069	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
601	ALIAS:	1070	ALIAS:
602	aio_read = EIO_READ	1071	aio_read = EIO_READ
603	aio_write = EIO_WRITE	1072	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	1073	PPCODE:
606	{	1074	{
607	STRLEN svlen;	1075	STRLEN svlen;
		1076	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	1077	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	1078	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		1079
614	if (dataoffset < 0)	1080	if (dataoffset < 0)
615	dataoffset += svlen;	1081	dataoffset += svlen;
616		1082
617	if (dataoffset < 0 || dataoffset > svlen)	1083	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	1089	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	1090	len = svlen - dataoffset;
625	}	1091	}
626	else	1092	else
627	{	1093	{
628	/* read: grow scalar as necessary */	1094	/* read: check type and grow scalar as necessary */
		1095	SvUPGRADE (data, SVt_PV);
629	svptr = SvGROW (data, len + dataoffset + 1);	1096	svptr = SvGROW (data, len + dataoffset + 1);
630	}	1097	}
631		1098
632	if (len < 0)
633	croak ("length must not be negative");
634
635	{	1099	{
636	dREQ;	1100	dREQ;
637		1101
638	req->type = ix;	1102	req->type = ix;
639	req->sv1 = newSVsv (fh);	1103	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1104	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1105	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	1106	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	1107	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	1108	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	1109	req->stroffset = dataoffset;
…		…
655	}	1118	}
656	}	1119	}
657		1120
658	void	1121	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1122	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
660	PROTOTYPE: $$;$	1123	ALIAS:
		1124	aio_readlink = EIO_READLINK
		1125	aio_realpath = EIO_REALPATH
661	PPCODE:	1126	PPCODE:
662	{	1127	{
663	SV *data;	1128	SV *data;
664	dREQ;	1129	dREQ;
665		1130
666	req->type = EIO_READLINK;	1131	req->type = ix;
667	req->sv1 = newSVsv (path);	1132	req->sv1 = newSVsv (path);
668	req->ptr1 = SvPVbyte_nolen (req->sv1);	1133	req->ptr1 = SvPVbyte_nolen (req->sv1);
669		1134
670	REQ_SEND;	1135	REQ_SEND;
671	}	1136	}
672		1137
673	void	1138	void
674	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1139	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
675	PROTOTYPE: $$$$;$
676	PPCODE:	1140	PPCODE:
677	{	1141	{
		1142	int ifd = s_fileno_croak (in_fh , 0);
		1143	int ofd = s_fileno_croak (out_fh, 1);
678	dREQ;	1144	dREQ;
679		1145
680	req->type = EIO_SENDFILE;	1146	req->type = EIO_SENDFILE;
681	req->sv1 = newSVsv (out_fh);	1147	req->sv1 = newSVsv (out_fh);
682	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1148	req->int1 = ofd;
683	req->sv2 = newSVsv (in_fh);	1149	req->sv2 = newSVsv (in_fh);
684	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1150	req->int2 = ifd;
685	req->offs = SvVAL64 (in_offset);	1151	req->offs = in_offset;
686	req->size = length;	1152	req->size = length;
687		1153
688	REQ_SEND;	1154	REQ_SEND;
689	}	1155	}
690		1156
691	void	1157	void
692	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1158	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
693	PROTOTYPE: $$$;$
694	PPCODE:	1159	PPCODE:
695	{	1160	{
		1161	int fd = s_fileno_croak (fh, 0);
696	dREQ;	1162	dREQ;
697		1163
698	req->type = EIO_READAHEAD;	1164	req->type = EIO_READAHEAD;
699	req->sv1 = newSVsv (fh);	1165	req->sv1 = newSVsv (fh);
700	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1166	req->int1 = fd;
701	req->offs = SvVAL64 (offset);	1167	req->offs = offset;
702	req->size = length;	1168	req->size = length;
703		1169
704	REQ_SEND;	1170	REQ_SEND;
705	}	1171	}
706		1172
707	void	1173	void
708	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1174	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
709	ALIAS:	1175	ALIAS:
710	aio_stat = EIO_STAT	1176	aio_stat = EIO_STAT
711	aio_lstat = EIO_LSTAT	1177	aio_lstat = EIO_LSTAT
		1178	aio_statvfs = EIO_STATVFS
712	PPCODE:	1179	PPCODE:
713	{	1180	{
714	dREQ;	1181	dREQ;
715		1182
716	req->sv1 = newSVsv (fh_or_path);	1183	req->sv1 = newSVsv (fh_or_path);
…		…
720	req->type = ix;	1187	req->type = ix;
721	req->ptr1 = SvPVbyte_nolen (req->sv1);	1188	req->ptr1 = SvPVbyte_nolen (req->sv1);
722	}	1189	}
723	else	1190	else
724	{	1191	{
725	req->type = EIO_FSTAT;	1192	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
726	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1193	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
727	}	1194	}
728		1195
729	REQ_SEND;	1196	REQ_SEND;
730	}	1197	}
		1198
		1199	UV
		1200	major (UV dev)
		1201	ALIAS:
		1202	minor = 1
		1203	CODE:
		1204	RETVAL = ix ? major (dev) : minor (dev);
		1205	OUTPUT:
		1206	RETVAL
		1207
		1208	UV
		1209	makedev (UV maj, UV min)
		1210	CODE:
		1211	RETVAL = makedev (maj, min);
		1212	OUTPUT:
		1213	RETVAL
731		1214
732	void	1215	void
733	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1216	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
734	PPCODE:	1217	PPCODE:
735	{	1218	{
…		…
825		1308
826	REQ_SEND;	1309	REQ_SEND;
827	}	1310	}
828		1311
829	void	1312	void
		1313	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1314	PPCODE:
		1315	{
		1316	dREQ;
		1317
		1318	req->type = EIO_READDIR;
		1319	req->sv1 = newSVsv (pathname);
		1320	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1321	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1322
		1323	if (flags & EIO_READDIR_DENTS)
		1324	req->int1 |= EIO_READDIR_CUSTOM2;
		1325
		1326	REQ_SEND;
		1327	}
		1328
		1329	void
830	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1330	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
831	ALIAS:	1331	ALIAS:
832	aio_unlink = EIO_UNLINK	1332	aio_unlink = EIO_UNLINK
833	aio_rmdir = EIO_RMDIR	1333	aio_rmdir = EIO_RMDIR
834	aio_readdir = EIO_READDIR	1334	aio_readdir = EIO_READDIR
…		…
876		1376
877	REQ_SEND;	1377	REQ_SEND;
878	}	1378	}
879		1379
880	void	1380	void
		1381	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1382	ALIAS:
		1383	aio_mtouch = EIO_MTOUCH
		1384	aio_msync = EIO_MSYNC
		1385	PPCODE:
		1386	{
		1387	STRLEN svlen;
		1388	char *svptr = SvPVbyte (data, svlen);
		1389	UV len = SvUV (length);
		1390
		1391	if (offset < 0)
		1392	offset += svlen;
		1393
		1394	if (offset < 0 || offset > svlen)
		1395	croak ("offset outside of scalar");
		1396
		1397	if (!SvOK (length) || len + offset > svlen)
		1398	len = svlen - offset;
		1399
		1400	{
		1401	dREQ;
		1402
		1403	req->type = ix;
		1404	req->sv2 = SvREFCNT_inc (data);
		1405	req->ptr2 = (char *)svptr + offset;
		1406	req->size = len;
		1407	req->int1 = flags;
		1408
		1409	REQ_SEND;
		1410	}
		1411	}
		1412
		1413	void
		1414	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1415	PPCODE:
		1416	{
		1417	STRLEN svlen;
		1418	char *svptr = SvPVbyte (data, svlen);
		1419	UV len = SvUV (length);
		1420
		1421	if (offset < 0)
		1422	offset += svlen;
		1423
		1424	if (offset < 0 || offset > svlen)
		1425	croak ("offset outside of scalar");
		1426
		1427	if (!SvOK (length) || len + offset > svlen)
		1428	len = svlen - offset;
		1429
		1430	{
		1431	dREQ;
		1432
		1433	req->type = EIO_MLOCK;
		1434	req->sv2 = SvREFCNT_inc (data);
		1435	req->ptr2 = (char *)svptr + offset;
		1436	req->size = len;
		1437
		1438	REQ_SEND;
		1439	}
		1440	}
		1441
		1442	void
		1443	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	dREQ;
		1447
		1448	req->type = EIO_MLOCKALL;
		1449	req->int1 = flags;
		1450
		1451	REQ_SEND;
		1452	}
		1453
		1454	void
881	aio_busy (double delay, SV *callback=&PL_sv_undef)	1455	aio_busy (double delay, SV *callback=&PL_sv_undef)
882	PPCODE:	1456	PPCODE:
883	{	1457	{
884	dREQ;	1458	dREQ;
885		1459
…		…
889	REQ_SEND;	1463	REQ_SEND;
890	}	1464	}
891		1465
892	void	1466	void
893	aio_group (SV *callback=&PL_sv_undef)	1467	aio_group (SV *callback=&PL_sv_undef)
894	PROTOTYPE: ;$
895	PPCODE:	1468	PPCODE:
896	{	1469	{
897	dREQ;	1470	dREQ;
898		1471
899	req->type = EIO_GROUP;	1472	req->type = EIO_GROUP;
900		1473
901	eio_submit (req);	1474	req_submit (req);
902	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1475	XPUSHs (req_sv (req, aio_grp_stash));
903	}	1476	}
904		1477
905	void	1478	void
906	aio_nop (SV *callback=&PL_sv_undef)	1479	aio_nop (SV *callback=&PL_sv_undef)
907	ALIAS:	1480	ALIAS:
…		…
916	REQ_SEND;	1489	REQ_SEND;
917	}	1490	}
918		1491
919	int	1492	int
920	aioreq_pri (int pri = 0)	1493	aioreq_pri (int pri = 0)
921	PROTOTYPE: ;$
922	CODE:	1494	CODE:
923	RETVAL = next_pri;	1495	RETVAL = next_pri;
924	if (items > 0)	1496	if (items > 0)
925	{	1497	{
926	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1498	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
938	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1510	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
939	next_pri = nice;	1511	next_pri = nice;
940		1512
941	void	1513	void
942	flush ()	1514	flush ()
943	PROTOTYPE:
944	CODE:	1515	CODE:
945	while (eio_nreqs ())	1516	while (eio_nreqs ())
946	{	1517	{
947	poll_wait ();	1518	poll_wait ();
948	poll_cb ();	1519	poll_cb ();
949	}	1520	}
950		1521
951	int	1522	int
952	poll()	1523	poll ()
953	PROTOTYPE:
954	CODE:	1524	CODE:
955	poll_wait ();	1525	poll_wait ();
956	RETVAL = poll_cb ();	1526	RETVAL = poll_cb ();
957	OUTPUT:	1527	OUTPUT:
958	RETVAL	1528	RETVAL
959		1529
960	int	1530	int
961	poll_fileno()	1531	poll_fileno ()
962	PROTOTYPE:
963	CODE:	1532	CODE:
964	RETVAL = respipe [0];	1533	RETVAL = s_epipe_fd (&respipe);
965	OUTPUT:	1534	OUTPUT:
966	RETVAL	1535	RETVAL
967		1536
968	int	1537	int
969	poll_cb(...)	1538	poll_cb (...)
970	PROTOTYPE:	1539	PROTOTYPE:
971	CODE:	1540	CODE:
972	RETVAL = poll_cb ();	1541	RETVAL = poll_cb ();
973	OUTPUT:	1542	OUTPUT:
974	RETVAL	1543	RETVAL
975		1544
976	void	1545	void
977	poll_wait()	1546	poll_wait ()
978	PROTOTYPE:
979	CODE:	1547	CODE:
980	poll_wait ();	1548	poll_wait ();
981		1549
982	int	1550	int
983	nreqs()	1551	nreqs ()
984	PROTOTYPE:
985	CODE:	1552	CODE:
986	RETVAL = eio_nreqs ();	1553	RETVAL = eio_nreqs ();
987	OUTPUT:	1554	OUTPUT:
988	RETVAL	1555	RETVAL
989		1556
990	int	1557	int
991	nready()	1558	nready ()
992	PROTOTYPE:
993	CODE:	1559	CODE:
994	RETVAL = eio_nready ();	1560	RETVAL = eio_nready ();
995	OUTPUT:	1561	OUTPUT:
996	RETVAL	1562	RETVAL
997		1563
998	int	1564	int
999	npending()	1565	npending ()
1000	PROTOTYPE:
1001	CODE:	1566	CODE:
1002	RETVAL = eio_npending ();	1567	RETVAL = eio_npending ();
1003	OUTPUT:	1568	OUTPUT:
1004	RETVAL	1569	RETVAL
1005		1570
1006	int	1571	int
1007	nthreads()	1572	nthreads ()
1008	PROTOTYPE:
1009	CODE:	1573	CODE:
1010	RETVAL = eio_nthreads ();	1574	RETVAL = eio_nthreads ();
1011	OUTPUT:	1575	OUTPUT:
1012	RETVAL	1576	RETVAL
1013		1577
		1578	int
		1579	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1580	CODE:
		1581	RETVAL = posix_fadvise (fh, offset, length, advice);
		1582	OUTPUT:
		1583	RETVAL
		1584
		1585	ssize_t
		1586	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1587	CODE:
		1588	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	void
		1593	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1594	PPCODE:
		1595	sv_unmagic (scalar, MMAP_MAGIC);
		1596	{
		1597	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1598	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1599	if (addr == (void *)-1)
		1600	XSRETURN_NO;
		1601
		1602	sv_force_normal (scalar);
		1603
		1604	/* we store the length in mg_obj, as namlen is I32 :/ */
		1605	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1606	->mg_obj = (SV *)length;
		1607
		1608	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1609
		1610	if (!(prot & PROT_WRITE))
		1611	SvREADONLY_on (scalar);
		1612
		1613	if (SvLEN (scalar))
		1614	Safefree (SvPVX (scalar));
		1615
		1616	SvPVX (scalar) = (char *)addr;
		1617	SvCUR_set (scalar, length);
		1618	SvLEN_set (scalar, 0);
		1619	SvPOK_only (scalar);
		1620
		1621	XSRETURN_YES;
		1622	}
		1623
		1624	void
		1625	munmap (SV *scalar)
		1626	CODE:
		1627	sv_unmagic (scalar, MMAP_MAGIC);
		1628
		1629	int
		1630	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1631	ALIAS:
		1632	mprotect = 1
		1633	CODE:
		1634	{
		1635	STRLEN svlen;
		1636	void *addr = SvPVbyte (scalar, svlen);
		1637	size_t len = SvUV (length);
		1638
		1639	if (offset < 0)
		1640	offset += svlen;
		1641
		1642	if (offset < 0 || offset > svlen)
		1643	croak ("offset outside of scalar");
		1644
		1645	if (!SvOK (length) || len + offset > svlen)
		1646	len = svlen - offset;
		1647
		1648	addr = (void *)(((intptr_t)addr) + offset);
		1649	eio_page_align (&addr, &len);
		1650
		1651	switch (ix)
		1652	{
		1653	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1654	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1655	}
		1656	}
		1657	OUTPUT:
		1658	RETVAL
		1659
		1660	int
		1661	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1662	CODE:
		1663	{
		1664	STRLEN svlen;
		1665	void *addr = SvPVbyte (scalar, svlen);
		1666	size_t len = SvUV (length);
		1667
		1668	if (offset < 0)
		1669	offset += svlen;
		1670
		1671	if (offset < 0 || offset > svlen)
		1672	croak ("offset outside of scalar");
		1673
		1674	if (!SvOK (length) || len + offset > svlen)
		1675	len = svlen - offset;
		1676
		1677	addr = (void *)(((intptr_t)addr) + offset);
		1678	eio_page_align (&addr, &len);
		1679	#if _POSIX_MEMLOCK_RANGE
		1680	RETVAL = munlock (addr, len);
		1681	#else
		1682	RETVAL = ((errno = ENOSYS), -1);
		1683	#endif
		1684	}
		1685	OUTPUT:
		1686	RETVAL
		1687
		1688	int
		1689	munlockall ()
		1690	CODE:
		1691	#if _POSIX_MEMLOCK
		1692	munlockall ();
		1693	#else
		1694	RETVAL = -1;
		1695	errno = ENOSYS;
		1696	#endif
		1697	OUTPUT:
		1698	RETVAL
		1699
1014	void _on_next_submit (SV *cb)	1700	void _on_next_submit (SV *cb)
1015	CODE:	1701	CODE:
1016	SvREFCNT_dec (on_next_submit);	1702	SvREFCNT_dec (on_next_submit);
1017	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1703	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1018		1704
…		…
1025	CODE:	1711	CODE:
1026	eio_cancel (req);	1712	eio_cancel (req);
1027		1713
1028	void	1714	void
1029	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1715	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1030	CODE:	1716	PPCODE:
		1717	{
		1718	if (GIMME_V != G_VOID)
		1719	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1720
		1721	if (items > 1)
		1722	{
		1723	SV *cb_cv =get_cb (callback);
		1724
1031	SvREFCNT_dec (req->callback);	1725	SvREFCNT_dec (req->callback);
1032	req->callback = newSVsv (callback);	1726	req->callback = SvREFCNT_inc (cb_cv);
		1727	}
		1728	}
1033		1729
1034	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1730	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1035		1731
1036	void	1732	void
1037	add (aio_req grp, ...)	1733	add (aio_req grp, ...)
…		…
1069	AV *av;	1765	AV *av;
1070		1766
1071	grp->errorno = errno;	1767	grp->errorno = errno;
1072		1768
1073	av = newAV ();	1769	av = newAV ();
		1770	av_extend (av, items - 1);
1074		1771
1075	for (i = 1; i < items; ++i )	1772	for (i = 1; i < items; ++i )
1076	av_push (av, newSVsv (ST (i)));	1773	av_push (av, newSVsv (ST (i)));
1077		1774
1078	SvREFCNT_dec (grp->sv1);	1775	SvREFCNT_dec (grp->sv1);
…		…
1092	void	1789	void
1093	feed (aio_req grp, SV *callback=&PL_sv_undef)	1790	feed (aio_req grp, SV *callback=&PL_sv_undef)
1094	CODE:	1791	CODE:
1095	{	1792	{
1096	SvREFCNT_dec (grp->sv2);	1793	SvREFCNT_dec (grp->sv2);
1097	grp->sv2 = newSVsv (callback);	1794	grp->sv2 = newSVsv (callback);
		1795	grp->feed = aio_grp_feed;
1098		1796
1099	if (grp->int2 <= 0)	1797	if (grp->int2 <= 0)
1100	grp->int2 = 2;	1798	grp->int2 = 2;
1101		1799
1102	eio_grp_limit (grp, grp->int2);	1800	eio_grp_limit (grp, grp->int2);

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