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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.149 by root, Tue Jun 30 07:33:58 2009 UTC vs.
Revision 1.187 by root, Sat Jul 16 16:46:10 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>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
18	/* perl namespace pollution */	24	/* perl namespace pollution */
19	#undef VERSION	25	#undef VERSION
		26
		27	/* perl stupidly overrides readdir and maybe others */
		28	/* with thread-unsafe versions, imagine that :( */
		29	#undef readdir
		30	#undef opendir
		31	#undef closedir
20		32
21	#ifdef _WIN32	33	#ifdef _WIN32
22		34
23	# define EIO_STRUCT_DIRENT Direntry_t	35	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc	36	# undef malloc
…		…
28	# undef open	40	# undef open
29	# undef read	41	# undef read
30	# undef write	42	# undef write
31	# undef send	43	# undef send
32	# undef recv	44	# undef recv
33	# undef stat	45	# undef lstat
34	# undef fstat
35	# define lstat stat
36	# undef truncate	46	# undef truncate
37	# undef ftruncate	47	# undef ftruncate
38	# undef open	48	# undef open
		49	# undef link
39	# undef close	50	# undef close
40	# undef unlink	51	# undef unlink
		52	# undef mkdir
41	# undef rmdir	53	# undef rmdir
42	# undef rename	54	# undef rename
43	# undef lseek	55	# undef lseek
		56	# undef opendir
		57	# undef readdir
		58	# undef closedir
		59	# undef chmod
		60	# undef fchmod
44		61
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)	62	# define opendir(fd) EIO_ERRNO (ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)	63	# define readdir(fd) EIO_ENOSYS ()
56	# define closedir(fd) (errno = ENOSYS, -1)	64	# define closedir(fd) EIO_ENOSYS ()
57	# define mkdir(a,b) mkdir (a)
58		65
59	#else	66	#else
60		67
61	# include <sys/time.h>	68	# include <sys/time.h>
62	# include <sys/select.h>	69	# include <sys/select.h>
63	# include <unistd.h>	70	# include <unistd.h>
64	# include <utime.h>	71	# include <utime.h>
65	# include <signal.h>	72	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67		73
68	#endif	74	#endif
69
70	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir
73	#undef opendir
74	#undef closedir
75		75
76	#define EIO_STRUCT_STAT Stat_t	76	#define EIO_STRUCT_STAT Stat_t
77		77
78	/* use NV for 32 bit perls as it allows larger offsets */	78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8	79	#if IVSIZE >= 8
…		…
97	#define expect_false(expr) expect ((expr) != 0, 0)	97	#define expect_false(expr) expect ((expr) != 0, 0)
98	#define expect_true(expr) expect ((expr) != 0, 1)	98	#define expect_true(expr) expect ((expr) != 0, 1)
99		99
100	/*****************************************************************************/	100	/*****************************************************************************/
101		101
102	static HV *stash;
103	typedef SV SV8; /* byte-sv, used for argument-checking */	102	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	103	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	104	typedef int aio_wfd; /* write file descriptor */
106		105
107	#define AIO_REQ_KLASS "IO::AIO::REQ"	106	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
108	#define AIO_GRP_KLASS "IO::AIO::GRP"
109		107
110	#define EIO_REQ_MEMBERS \	108	#define EIO_REQ_MEMBERS \
111	SV *callback; \	109	SV *callback; \
112	SV *sv1, *sv2; \	110	SV *sv1, *sv2; \
113	STRLEN stroffset; \	111	STRLEN stroffset; \
114	SV *self;	112	SV *self;
115		113
116	#define EIO_NO_WRAPPERS 1	114	#define EIO_NO_WRAPPERS 1
117		115
		116	#include "libeio/config.h"
118	#include "libeio/eio.h"	117	#include "libeio/eio.h"
		118
		119	/* Linux/others */
		120	#ifndef O_ASYNC
		121	# define O_ASYNC 0
		122	#endif
		123	#ifndef O_DIRECT
		124	# define O_DIRECT 0
		125	#endif
		126	#ifndef O_NOATIME
		127	# define O_NOATIME 0
		128	#endif
		129
		130	/* POSIX */
		131	#ifndef O_CLOEXEC
		132	# define O_CLOEXEC 0
		133	#endif
		134	#ifndef O_NOFOLLOW
		135	# define O_NOFOLLOW 0
		136	#endif
		137	#ifndef O_NOCTTY
		138	# define O_NOCTTY 0
		139	#endif
		140	#ifndef O_NONBLOCK
		141	# define O_NONBLOCK 0
		142	#endif
		143	#ifndef O_EXEC
		144	# define O_EXEC 0
		145	#endif
		146	#ifndef O_SEARCH
		147	# define O_SEARCH 0
		148	#endif
		149	#ifndef O_DIRECTORY
		150	# define O_DIRECTORY 0
		151	#endif
		152	#ifndef O_DSYNC
		153	# define O_DSYNC 0
		154	#endif
		155	#ifndef O_RSYNC
		156	# define O_RSYNC 0
		157	#endif
		158	#ifndef O_SYNC
		159	# define O_SYNC 0
		160	#endif
		161	#ifndef O_TTY_INIT
		162	# define O_TTY_INIT 0
		163	#endif
119		164
120	#ifndef POSIX_FADV_NORMAL	165	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0	166	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif	167	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL	168	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0	169	# define POSIX_FADV_SEQUENTIAL 0
127	#endif	170	#endif
128
129	#ifndef POSIX_FADV_RANDOM	171	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0	172	# define POSIX_FADV_RANDOM 0
131	#endif	173	#endif
132
133	#ifndef POSIX_FADV_NOREUSE	174	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0	175	# define POSIX_FADV_NOREUSE 0
135	#endif	176	#endif
136
137	#ifndef POSIX_FADV_WILLNEED	177	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0	178	# define POSIX_FADV_WILLNEED 0
139	#endif	179	#endif
140
141	#ifndef POSIX_FADV_DONTNEED	180	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0	181	# define POSIX_FADV_DONTNEED 0
		182	#endif
		183
		184	#if !HAVE_POSIX_FADVISE
		185	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		186	#endif
		187
		188	#ifndef POSIX_MADV_NORMAL
		189	# define POSIX_MADV_NORMAL 0
		190	#endif
		191	#ifndef POSIX_MADV_SEQUENTIAL
		192	# define POSIX_MADV_SEQUENTIAL 0
		193	#endif
		194	#ifndef POSIX_MADV_RANDOM
		195	# define POSIX_MADV_RANDOM 0
		196	#endif
		197	#ifndef POSIX_MADV_WILLNEED
		198	# define POSIX_MADV_WILLNEED 0
		199	#endif
		200	#ifndef POSIX_MADV_DONTNEED
		201	# define POSIX_MADV_DONTNEED 0
		202	#endif
		203
		204	#if !HAVE_POSIX_MADVISE
		205	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		206	#endif
		207
		208	#ifndef PROT_NONE
		209	# define PROT_NONE 0
		210	#endif
		211	#ifndef PROT_READ
		212	# define PROT_READ 0
		213	#endif
		214	#ifndef PROT_WRITE
		215	# define PROT_READ 0
		216	#endif
		217	#ifndef PROT_EXEC
		218	# define PROT_EXEC 0
		219	#endif
		220
		221	#ifndef ST_RDONLY
		222	# define ST_RDONLY 0
		223	#endif
		224	#ifndef ST_NOSUID
		225	# define ST_NOSUID 0
		226	#endif
		227	#ifndef ST_NODEV
		228	# define ST_NODEV 0
		229	#endif
		230	#ifndef ST_NOEXEC
		231	# define ST_NOEXEC 0
		232	#endif
		233	#ifndef ST_SYNCHRONOUS
		234	# define ST_SYNCHRONOUS 0
		235	#endif
		236	#ifndef ST_MANDLOCK
		237	# define ST_MANDLOCK 0
		238	#endif
		239	#ifndef ST_WRITE
		240	# define ST_WRITE 0
		241	#endif
		242	#ifndef ST_APPEND
		243	# define ST_APPEND 0
		244	#endif
		245	#ifndef ST_IMMUTABLE
		246	# define ST_IMMUTABLE 0
		247	#endif
		248	#ifndef ST_NOATIME
		249	# define ST_NOATIME 0
		250	#endif
		251	#ifndef ST_NODIRATIME
		252	# define ST_NODIRATIME 0
		253	#endif
		254	#ifndef ST_RELATIME
		255	# define ST_RELATIME 0
		256	#endif
		257
		258	#ifndef S_IFIFO
		259	# define S_IFIFO 0
		260	#endif
		261	#ifndef S_IFCHR
		262	# define S_IFCHR 0
		263	#endif
		264	#ifndef S_IFBLK
		265	# define S_IFBLK 0
		266	#endif
		267	#ifndef S_IFLNK
		268	# define S_IFLNK 0
		269	#endif
		270	#ifndef S_IFREG
		271	# define S_IFREG 0
		272	#endif
		273	#ifndef S_IFDIR
		274	# define S_IFDIR 0
		275	#endif
		276	#ifndef S_IFWHT
		277	# define S_IFWHT 0
		278	#endif
		279	#ifndef S_IFSOCK
		280	# define S_IFSOCK 0
		281	#endif
		282
		283	#ifndef MAP_ANONYMOUS
		284	# ifdef MAP_ANON
		285	# define MAP_ANONYMOUS MAP_ANON
		286	# else
		287	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		288	# endif
		289	#endif
		290	#ifndef MAP_HUGETLB
		291	# define MAP_HUGETLB 0
		292	#endif
		293	#ifndef MAP_LOCKED
		294	# define MAP_LOCKED 0
		295	#endif
		296	#ifndef MAP_NORESERVE
		297	# define MAP_NORESERVE 0
		298	#endif
		299	#ifndef MAP_POPULATE
		300	# define MAP_POPULATE 0
		301	#endif
		302	#ifndef MAP_NONBLOCK
		303	# define MAP_NONBLOCK 0
		304	#endif
		305
		306	#ifndef makedev
		307	# define makedev(maj,min) (((maj) << 8) | (min))
		308	#endif
		309	#ifndef major
		310	# define major(dev) ((dev) >> 8)
		311	#endif
		312	#ifndef minor
		313	# define minor(dev) ((dev) & 0xff)
		314	#endif
		315
		316	#ifndef PAGESIZE
		317	# define PAGESIZE sysconf (_SC_PAGESIZE)
143	#endif	318	#endif
144		319
145	static int req_invoke (eio_req *req);	320	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	321	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	322	static void req_destroy (eio_req *grp);
…		…
158		333
159	static SV *on_next_submit;	334	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	335	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	336	static int max_outstanding;
162		337
163	static int respipe_osf [2], respipe [2] = { -1, -1 };	338	static s_epipe respipe;
164		339
165	static void req_destroy (aio_req req);	340	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	341	static void req_cancel (aio_req req);
167		342
168	static void want_poll (void)	343	static void want_poll (void)
169	{	344	{
170	/* write a dummy byte to the pipe so fh becomes ready */	345	/* write a dummy byte to the pipe so fh becomes ready */
171	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	346	s_epipe_signal (&respipe);
172	}	347	}
173		348
174	static void done_poll (void)	349	static void done_poll (void)
175	{	350	{
176	/* read any signals sent by the worker threads */	351	/* read any signals sent by the worker threads */
177	char buf [4];	352	s_epipe_drain (&respipe);
178	while (respipe_read (respipe [0], buf, 4) == 4)
179	;
180	}	353	}
181		354
182	/* must be called at most once */	355	/* must be called at most once */
183	static SV *req_sv (aio_req req, const char *klass)	356	static SV *req_sv (aio_req req, HV *stash)
184	{	357	{
185	if (!req->self)	358	if (!req->self)
186	{	359	{
187	req->self = (SV *)newHV ();	360	req->self = (SV *)newHV ();
188	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	361	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189	}	362	}
190		363
191	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	364	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192	}	365	}
193		366
194	static aio_req SvAIO_REQ (SV *sv)	367	static aio_req SvAIO_REQ (SV *sv)
195	{	368	{
196	MAGIC *mg;	369	MAGIC *mg;
197		370
198	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	371	if (!SvROK (sv)
		372	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		373	&& SvSTASH (SvRV (sv)) != aio_req_stash
		374	&& !sv_derived_from (sv, "IO::AIO::REQ")))
199	croak ("object of class " AIO_REQ_KLASS " expected");	375	croak ("object of class IO::AIO::REQ expected");
200		376
201	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	377	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202		378
203	return mg ? (aio_req)mg->mg_ptr : 0;	379	return mg ? (aio_req)mg->mg_ptr : 0;
204	}	380	}
…		…
210	dSP;	386	dSP;
211		387
212	ENTER;	388	ENTER;
213	SAVETMPS;	389	SAVETMPS;
214	PUSHMARK (SP);	390	PUSHMARK (SP);
215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	391	XPUSHs (req_sv (grp, aio_grp_stash));
216	PUTBACK;	392	PUTBACK;
217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	393	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218	SPAGAIN;	394	SPAGAIN;
219	FREETMPS;	395	FREETMPS;
220	LEAVE;	396	LEAVE;
…		…
238	}	414	}
239	}	415	}
240		416
241	static int req_invoke (eio_req *req)	417	static int req_invoke (eio_req *req)
242	{	418	{
243	dSP;
244
245	if (req->flags & FLAG_SV2_RO_OFF)	419	if (req->flags & FLAG_SV2_RO_OFF)
246	SvREADONLY_off (req->sv2);	420	SvREADONLY_off (req->sv2);
247		421
248	if (!EIO_CANCELLED (req) && req->callback)	422	if (!EIO_CANCELLED (req) && req->callback)
249	{	423	{
		424	dSP;
		425	static SV *sv_result_cache; /* caches the result integer SV */
		426	SV *sv_result;
		427
250	ENTER;	428	ENTER;
251	SAVETMPS;	429	SAVETMPS;
252	PUSHMARK (SP);	430	PUSHMARK (SP);
253	EXTEND (SP, 1);	431	EXTEND (SP, 1);
		432
		433	/* do not recreate the result IV from scratch each time */
		434	if (expect_true (sv_result_cache))
		435	{
		436	sv_result = sv_result_cache; sv_result_cache = 0;
		437	SvIV_set (sv_result, req->result);
		438	SvIOK_only (sv_result);
		439	}
		440	else
		441	{
		442	sv_result = newSViv (req->result);
		443	SvREADONLY_on (sv_result);
		444	}
254		445
255	switch (req->type)	446	switch (req->type)
256	{	447	{
257	case EIO_READDIR:	448	case EIO_READDIR:
258	{	449	{
…		…
326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	517	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
327	char sym [64];	518	char sym [64];
328	int symlen;	519	int symlen;
329		520
330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	521	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
331	gv_init (gv, stash, sym, symlen, 0);	522	gv_init (gv, aio_stash, sym, symlen, 0);
332		523
333	symlen = snprintf (	524	symlen = snprintf (
334	sym,	525	sym,
335	sizeof (sym),	526	sizeof (sym),
336	"%s&=%d",	527	"%s&=%d",
…		…
344		535
345	PUSHs (fh);	536	PUSHs (fh);
346	}	537	}
347	break;	538	break;
348		539
		540	case EIO_STATVFS:
		541	case EIO_FSTATVFS:
		542	{
		543	SV *rv = &PL_sv_undef;
		544
		545	#ifndef _WIN32
		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	#endif
		566
		567	PUSHs (rv);
		568	}
		569
		570	break;
		571
349	case EIO_GROUP:	572	case EIO_GROUP:
350	req->int1 = 2; /* mark group as finished */	573	req->int1 = 2; /* mark group as finished */
351		574
352	if (req->sv1)	575	if (req->sv1)
353	{	576	{
…		…
363	case EIO_NOP:	586	case EIO_NOP:
364	case EIO_BUSY:	587	case EIO_BUSY:
365	break;	588	break;
366		589
367	case EIO_READLINK:	590	case EIO_READLINK:
		591	case EIO_REALPATH:
368	if (req->result > 0)	592	if (req->result > 0)
369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	593	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
370	break;	594	break;
371		595
372	case EIO_STAT:	596	case EIO_STAT:
373	case EIO_LSTAT:	597	case EIO_LSTAT:
374	case EIO_FSTAT:	598	case EIO_FSTAT:
375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	599	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
376	PL_laststatval = req->result;	600	PL_laststatval = req->result;
377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	601	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378	PUSHs (sv_2mortal (newSViv (req->result)));	602	PUSHs (sv_result);
379	break;	603	break;
380		604
381	case EIO_READ:	605	case EIO_READ:
382	{	606	{
383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	607	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
384	*SvEND (req->sv2) = 0;	608	*SvEND (req->sv2) = 0;
385	SvPOK_only (req->sv2);	609	SvPOK_only (req->sv2);
386	SvSETMAGIC (req->sv2);	610	SvSETMAGIC (req->sv2);
387	PUSHs (sv_2mortal (newSViv (req->result)));	611	PUSHs (sv_result);
388	}	612	}
389	break;	613	break;
390		614
391	case EIO_DUP2:	615	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392	if (req->result > 0)	616	if (req->result > 0)
393	req->result = 0;	617	SvIV_set (sv_result, 0);
394	/* FALLTHROUGH */	618	/* FALLTHROUGH */
395		619
396	default:	620	default:
397	PUSHs (sv_2mortal (newSViv (req->result)));	621	PUSHs (sv_result);
398	break;	622	break;
399	}	623	}
400		624
401	errno = req->errorno;	625	errno = req->errorno;
402		626
403	PUTBACK;	627	PUTBACK;
404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	628	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405	SPAGAIN;	629	SPAGAIN;
		630
		631	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		632	SvREFCNT_dec (sv_result);
		633	else
		634	sv_result_cache = sv_result;
406		635
407	FREETMPS;	636	FREETMPS;
408	LEAVE;	637	LEAVE;
409		638
410	PUTBACK;	639	PUTBACK;
…		…
439	grp->sv2 = 0;	668	grp->sv2 = 0;
440		669
441	eio_grp_cancel (grp);	670	eio_grp_cancel (grp);
442	}	671	}
443		672
444	#ifdef USE_SOCKETS_AS_HANDLES
445	# define TO_SOCKET(x) (win32_get_osfhandle (x))
446	#else
447	# define TO_SOCKET(x) (x)
448	#endif
449
450	static void
451	create_respipe (void)	673	static void create_respipe (void)
452	{	674	{
453	int old_readfd = respipe [0];
454
455	if (respipe [1] >= 0)
456	respipe_close (TO_SOCKET (respipe [1]));
457
458	#ifdef _WIN32
459	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
460	#else
461	if (pipe (respipe))	675	if (s_epipe_renew (&respipe))
462	#endif
463	croak ("unable to initialize result pipe");	676	croak ("IO::AIO: unable to initialize result pipe");
464
465	if (old_readfd >= 0)
466	{
467	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
468	croak ("unable to initialize result pipe(2)");
469
470	respipe_close (respipe [0]);
471	respipe [0] = old_readfd;
472	}
473
474	#ifdef _WIN32
475	int arg = 1;
476	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
477	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
478	#else
479	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
480	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
481	#endif
482	croak ("unable to initialize result pipe(3)");
483
484	respipe_osf [0] = TO_SOCKET (respipe [0]);
485	respipe_osf [1] = TO_SOCKET (respipe [1]);
486	}	677	}
487		678
488	static void poll_wait (void)	679	static void poll_wait (void)
489	{	680	{
490	fd_set rfd;
491
492	while (eio_nreqs ())	681	while (eio_nreqs ())
493	{	682	{
494	int size;	683	int size;
495		684
496	X_LOCK (reslock);	685	X_LOCK (reslock);
…		…
500	if (size)	689	if (size)
501	return;	690	return;
502		691
503	etp_maybe_start_thread ();	692	etp_maybe_start_thread ();
504		693
505	FD_ZERO (&rfd);	694	s_epipe_wait (&respipe);
506	FD_SET (respipe [0], &rfd);
507
508	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
509	}	695	}
510	}	696	}
511		697
512	static int poll_cb (void)	698	static int poll_cb (void)
513	{	699	{
…		…
528	static void atfork_child (void)	714	static void atfork_child (void)
529	{	715	{
530	create_respipe ();	716	create_respipe ();
531	}	717	}
532		718
533	static SV *	719	/*****************************************************************************/
534	get_cb (SV *cb_sv)
535	{
536	HV *st;
537	GV *gvp;
538	CV *cv;
539		720
540	if (!SvOK (cb_sv))	721	#if !_POSIX_MAPPED_FILES
		722	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		723	# define munmap(addr,length) (errno = ENOSYS, -1)
		724	#endif
		725
		726	#if !_POSIX_MEMORY_PROTECTION
		727	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		728	# define PROT_NONE 0
		729	# define PROT_WRITE 0
		730	# define MAP_PRIVATE 0
		731	# define MAP_SHARED 0
		732	# define MAP_FIXED 0
		733	#endif
		734
		735	#define MMAP_MAGIC PERL_MAGIC_ext
		736
		737	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		738	{
		739	int old_errno = errno;
		740	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		741	errno = old_errno;
		742
		743	mg->mg_obj = 0; /* just in case */
		744
		745	SvREADONLY_off (sv);
		746
		747	if (SvPVX (sv) != mg->mg_ptr)
		748	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		749
		750	SvCUR_set (sv, 0);
		751	SvPVX (sv) = 0;
		752	SvOK_off (sv);
		753
541	return 0;	754	return 0;
		755	}
542		756
543	cv = sv_2cv (cb_sv, &st, &gvp, 0);	757	static MGVTBL mmap_vtbl = {
		758	0, 0, 0, 0, mmap_free
		759	};
544		760
545	if (!cv)	761	/*****************************************************************************/
546	croak ("IO::AIO callback must be undef or a CODE reference");
547		762
548	return (SV *)cv;	763	static SV * get_cb (SV *cb_sv)
		764	{
		765	SvGETMAGIC (cb_sv);
		766	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
549	}	767	}
550		768
551	#define dREQ \	769	#define dREQ \
552	SV *cb_cv; \	770	SV *cb_cv; \
553	aio_req req; \	771	aio_req req; \
…		…
567	PUTBACK; \	785	PUTBACK; \
568	req_submit (req); \	786	req_submit (req); \
569	SPAGAIN; \	787	SPAGAIN; \
570	\	788	\
571	if (GIMME_V != G_VOID) \	789	if (GIMME_V != G_VOID) \
572	XPUSHs (req_sv (req, AIO_REQ_KLASS));	790	XPUSHs (req_sv (req, aio_req_stash));
573
574	static int
575	extract_fd (SV *fh, int wr)
576	{
577	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));
578
579	if (fd < 0)
580	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
581
582	return fd;
583	}
584		791
585	MODULE = IO::AIO PACKAGE = IO::AIO	792	MODULE = IO::AIO PACKAGE = IO::AIO
586		793
587	PROTOTYPES: ENABLE	794	PROTOTYPES: ENABLE
588		795
…		…
590	{	797	{
591	static const struct {	798	static const struct {
592	const char *name;	799	const char *name;
593	IV iv;	800	IV iv;
594	} *civ, const_iv[] = {	801	} *civ, const_iv[] = {
595	# define const_iv(name, value) { # name, (IV) value },	802	# define const_niv(name, value) { # name, (IV) value },
		803	# define const_iv(name) { # name, (IV) name },
596	# define const_eio(name) { # name, (IV) EIO_ ## name },	804	# define const_eio(name) { # name, (IV) EIO_ ## name },
597	const_iv (EXDEV , EXDEV)	805	const_iv (EXDEV)
598	const_iv (ENOSYS , ENOSYS)	806	const_iv (ENOSYS)
599	const_iv (O_RDONLY, O_RDONLY)	807	const_iv (O_RDONLY)
600	const_iv (O_WRONLY, O_WRONLY)	808	const_iv (O_WRONLY)
		809	const_iv (O_RDWR)
601	const_iv (O_CREAT , O_CREAT)	810	const_iv (O_CREAT)
602	const_iv (O_TRUNC , O_TRUNC)	811	const_iv (O_TRUNC)
603	#ifndef _WIN32	812	const_iv (O_EXCL)
		813	const_iv (O_APPEND)
		814
		815	const_iv (O_ASYNC)
		816	const_iv (O_DIRECT)
		817	const_iv (O_NOATIME)
		818
		819	const_iv (O_CLOEXEC)
		820	const_iv (O_NOCTTY)
		821	const_iv (O_NOFOLLOW)
		822	const_iv (O_NONBLOCK)
		823	const_iv (O_EXEC)
		824	const_iv (O_SEARCH)
		825	const_iv (O_DIRECTORY)
		826	const_iv (O_DSYNC)
		827	const_iv (O_RSYNC)
		828	const_iv (O_SYNC)
		829	const_iv (O_TTY_INIT)
		830
604	const_iv (S_IFIFO , S_IFIFO)	831	const_iv (S_IFIFO)
605	#endif	832	const_iv (S_IFCHR)
		833	const_iv (S_IFBLK)
		834	const_iv (S_IFLNK)
		835	const_iv (S_IFREG)
		836	const_iv (S_IFDIR)
		837	const_iv (S_IFWHT)
		838	const_iv (S_IFSOCK)
		839	const_iv (S_IFMT)
		840
606	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	841	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
607	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	842	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
608	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	843	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
609	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	844	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
610	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	845	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
611	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	846	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		847
		848	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		849	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		850	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		851	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		852	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		853
		854	const_iv (ST_RDONLY)
		855	const_iv (ST_NOSUID)
		856	const_iv (ST_NODEV)
		857	const_iv (ST_NOEXEC)
		858	const_iv (ST_SYNCHRONOUS)
		859	const_iv (ST_MANDLOCK)
		860	const_iv (ST_WRITE)
		861	const_iv (ST_APPEND)
		862	const_iv (ST_IMMUTABLE)
		863	const_iv (ST_NOATIME)
		864	const_iv (ST_NODIRATIME)
		865	const_iv (ST_RELATIME)
		866
		867	const_iv (PROT_NONE)
		868	const_iv (PROT_EXEC)
		869	const_iv (PROT_READ)
		870	const_iv (PROT_WRITE)
		871
		872	/*const_iv (MAP_FIXED)*/
		873	const_iv (MAP_PRIVATE)
		874	const_iv (MAP_SHARED)
		875	const_iv (MAP_ANONYMOUS)
		876
		877	/* linuxish */
		878	const_iv (MAP_HUGETLB)
		879	const_iv (MAP_LOCKED)
		880	const_iv (MAP_NORESERVE)
		881	const_iv (MAP_POPULATE)
		882	const_iv (MAP_NONBLOCK)
		883
		884	const_eio (MCL_FUTURE)
		885	const_eio (MCL_CURRENT)
		886
		887	const_eio (MS_ASYNC)
		888	const_eio (MS_INVALIDATE)
		889	const_eio (MS_SYNC)
		890
		891	const_eio (MT_MODIFY)
612		892
613	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	893	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
614	const_eio (SYNC_FILE_RANGE_WRITE)	894	const_eio (SYNC_FILE_RANGE_WRITE)
615	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	895	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		896
		897	const_eio (FALLOC_FL_KEEP_SIZE)
616		898
617	const_eio (READDIR_DENTS)	899	const_eio (READDIR_DENTS)
618	const_eio (READDIR_DIRS_FIRST)	900	const_eio (READDIR_DIRS_FIRST)
619	const_eio (READDIR_STAT_ORDER)	901	const_eio (READDIR_STAT_ORDER)
620	const_eio (READDIR_FOUND_UNKNOWN)	902	const_eio (READDIR_FOUND_UNKNOWN)
…		…
628	const_eio (DT_LNK)	910	const_eio (DT_LNK)
629	const_eio (DT_SOCK)	911	const_eio (DT_SOCK)
630	const_eio (DT_WHT)	912	const_eio (DT_WHT)
631	};	913	};
632		914
633	stash = gv_stashpv ("IO::AIO", 1);	915	aio_stash = gv_stashpv ("IO::AIO" , 1);
		916	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		917	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
634		918
635	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	919	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
636	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	920	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
		921
		922	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
637		923
638	create_respipe ();	924	create_respipe ();
639		925
640	if (eio_init (want_poll, done_poll) < 0)	926	if (eio_init (want_poll, done_poll) < 0)
641	croak ("IO::AIO: unable to initialise eio library");	927	croak ("IO::AIO: unable to initialise eio library");
…		…
643	/* atfork child called in fifo order, so before eio's handler */	929	/* atfork child called in fifo order, so before eio's handler */
644	X_THREAD_ATFORK (0, 0, atfork_child);	930	X_THREAD_ATFORK (0, 0, atfork_child);
645	}	931	}
646		932
647	void	933	void
648	max_poll_reqs (int nreqs)	934	max_poll_reqs (unsigned int nreqs)
649	PROTOTYPE: $	935	PROTOTYPE: $
650	CODE:	936	CODE:
651	eio_set_max_poll_reqs (nreqs);	937	eio_set_max_poll_reqs (nreqs);
652		938
653	void	939	void
…		…
655	PROTOTYPE: $	941	PROTOTYPE: $
656	CODE:	942	CODE:
657	eio_set_max_poll_time (nseconds);	943	eio_set_max_poll_time (nseconds);
658		944
659	void	945	void
660	min_parallel (int nthreads)	946	min_parallel (unsigned int nthreads)
661	PROTOTYPE: $	947	PROTOTYPE: $
662	CODE:	948	CODE:
663	eio_set_min_parallel (nthreads);	949	eio_set_min_parallel (nthreads);
664		950
665	void	951	void
666	max_parallel (int nthreads)	952	max_parallel (unsigned int nthreads)
667	PROTOTYPE: $	953	PROTOTYPE: $
668	CODE:	954	CODE:
669	eio_set_max_parallel (nthreads);	955	eio_set_max_parallel (nthreads);
670		956
671	void	957	void
672	max_idle (int nthreads)	958	max_idle (unsigned int nthreads)
673	PROTOTYPE: $	959	PROTOTYPE: $
674	CODE:	960	CODE:
675	eio_set_max_idle (nthreads);	961	eio_set_max_idle (nthreads);
676		962
677	void	963	void
		964	idle_timeout (unsigned int seconds)
		965	PROTOTYPE: $
		966	CODE:
		967	eio_set_idle_timeout (seconds);
		968
		969	void
678	max_outstanding (int maxreqs)	970	max_outstanding (unsigned int maxreqs)
679	PROTOTYPE: $	971	PROTOTYPE: $
680	CODE:	972	CODE:
681	max_outstanding = maxreqs;	973	max_outstanding = maxreqs;
682		974
683	void	975	void
684	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	976	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	977	PPCODE:
687	{	978	{
688	dREQ;	979	dREQ;
689		980
690	req->type = EIO_OPEN;	981	req->type = EIO_OPEN;
…		…
696	REQ_SEND;	987	REQ_SEND;
697	}	988	}
698		989
699	void	990	void
700	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	991	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
701	PROTOTYPE: $;$
702	ALIAS:	992	ALIAS:
703	aio_fsync = EIO_FSYNC	993	aio_fsync = EIO_FSYNC
704	aio_fdatasync = EIO_FDATASYNC	994	aio_fdatasync = EIO_FDATASYNC
705	PPCODE:	995	PPCODE:
706	{	996	{
707	int fd = extract_fd (fh, 0);	997	int fd = s_fileno_croak (fh, 0);
708	dREQ;	998	dREQ;
709		999
710	req->type = ix;	1000	req->type = ix;
711	req->sv1 = newSVsv (fh);	1001	req->sv1 = newSVsv (fh);
712	req->int1 = fd;	1002	req->int1 = fd;
…		…
714	REQ_SEND (req);	1004	REQ_SEND (req);
715	}	1005	}
716		1006
717	void	1007	void
718	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1008	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
719	PROTOTYPE: $$$$;$
720	PPCODE:	1009	PPCODE:
721	{	1010	{
722	int fd = extract_fd (fh, 0);	1011	int fd = s_fileno_croak (fh, 0);
723	dREQ;	1012	dREQ;
724		1013
725	req->type = EIO_SYNC_FILE_RANGE;	1014	req->type = EIO_SYNC_FILE_RANGE;
726	req->sv1 = newSVsv (fh);	1015	req->sv1 = newSVsv (fh);
727	req->int1 = fd;	1016	req->int1 = fd;
…		…
731		1020
732	REQ_SEND (req);	1021	REQ_SEND (req);
733	}	1022	}
734		1023
735	void	1024	void
		1025	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1026	PPCODE:
		1027	{
		1028	int fd = s_fileno_croak (fh, 0);
		1029	dREQ;
		1030
		1031	req->type = EIO_FALLOCATE;
		1032	req->sv1 = newSVsv (fh);
		1033	req->int1 = fd;
		1034	req->int2 = mode;
		1035	req->offs = offset;
		1036	req->size = len;
		1037
		1038	REQ_SEND (req);
		1039	}
		1040
		1041	void
736	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1042	aio_close (SV *fh, SV *callback=&PL_sv_undef)
737	PROTOTYPE: $;$
738	PPCODE:	1043	PPCODE:
739	{	1044	{
740	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1045	static int close_fd = -1; /* dummy fd to close fds via dup2 */
741	int fd = extract_fd (fh, 0);	1046	int fd = s_fileno_croak (fh, 0);
742	dREQ;	1047	dREQ;
743		1048
744	if (close_pipe < 0)	1049	if (expect_false (close_fd < 0))
745	{	1050	{
		1051	#ifdef _WIN32
		1052	close_fd = _open_osfhandle (socket (AF_INET, SOCK_STREAM, 0), 0);
		1053	#else
746	int pipefd [2];	1054	int pipefd [2];
747		1055
748	if (pipe (pipefd) < 0	1056	if (pipe (pipefd) < 0
749	|| close (pipefd [1]) < 0	1057	|| close (pipefd [1]) < 0
750	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1058	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
751	abort (); /*D*/	1059	abort (); /*D*/
752		1060
753	close_pipe = pipefd [0];	1061	close_fd = pipefd [0];
		1062	#endif
754	}	1063	}
755		1064
756	req->type = EIO_DUP2;	1065	req->type = EIO_DUP2;
757	req->int1 = close_pipe;	1066	req->int1 = close_fd;
758	req->sv2 = newSVsv (fh);	1067	req->sv2 = newSVsv (fh);
759	req->int2 = fd;	1068	req->int2 = fd;
760		1069
761	REQ_SEND (req);	1070	REQ_SEND (req);
762	}	1071	}
…		…
764	void	1073	void
765	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1074	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
766	ALIAS:	1075	ALIAS:
767	aio_read = EIO_READ	1076	aio_read = EIO_READ
768	aio_write = EIO_WRITE	1077	aio_write = EIO_WRITE
769	PROTOTYPE: $$$$$;$
770	PPCODE:	1078	PPCODE:
771	{	1079	{
772	STRLEN svlen;	1080	STRLEN svlen;
773	int fd = extract_fd (fh, ix == EIO_WRITE);	1081	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
774	char *svptr = SvPVbyte (data, svlen);	1082	char *svptr = SvPVbyte (data, svlen);
775	UV len = SvUV (length);	1083	UV len = SvUV (length);
776		1084
777	if (dataoffset < 0)	1085	if (dataoffset < 0)
778	dataoffset += svlen;	1086	dataoffset += svlen;
…		…
815	}	1123	}
816	}	1124	}
817		1125
818	void	1126	void
819	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1127	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
820	PROTOTYPE: $$;$	1128	ALIAS:
		1129	aio_readlink = EIO_READLINK
		1130	aio_realpath = EIO_REALPATH
821	PPCODE:	1131	PPCODE:
822	{	1132	{
823	SV *data;	1133	SV *data;
824	dREQ;	1134	dREQ;
825		1135
826	req->type = EIO_READLINK;	1136	req->type = ix;
827	req->sv1 = newSVsv (path);	1137	req->sv1 = newSVsv (path);
828	req->ptr1 = SvPVbyte_nolen (req->sv1);	1138	req->ptr1 = SvPVbyte_nolen (req->sv1);
829		1139
830	REQ_SEND;	1140	REQ_SEND;
831	}	1141	}
832		1142
833	void	1143	void
834	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1144	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
835	PROTOTYPE: $$$$;$
836	PPCODE:	1145	PPCODE:
837	{	1146	{
838	int ifd = extract_fd (in_fh , 0);	1147	int ifd = s_fileno_croak (in_fh , 0);
839	int ofd = extract_fd (out_fh, 0);	1148	int ofd = s_fileno_croak (out_fh, 1);
840	dREQ;	1149	dREQ;
841		1150
842	req->type = EIO_SENDFILE;	1151	req->type = EIO_SENDFILE;
843	req->sv1 = newSVsv (out_fh);	1152	req->sv1 = newSVsv (out_fh);
844	req->int1 = ofd;	1153	req->int1 = ofd;
…		…
850	REQ_SEND;	1159	REQ_SEND;
851	}	1160	}
852		1161
853	void	1162	void
854	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1163	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
855	PROTOTYPE: $$$;$
856	PPCODE:	1164	PPCODE:
857	{	1165	{
858	int fd = extract_fd (fh, 0);	1166	int fd = s_fileno_croak (fh, 0);
859	dREQ;	1167	dREQ;
860		1168
861	req->type = EIO_READAHEAD;	1169	req->type = EIO_READAHEAD;
862	req->sv1 = newSVsv (fh);	1170	req->sv1 = newSVsv (fh);
863	req->int1 = fd;	1171	req->int1 = fd;
…		…
868	}	1176	}
869		1177
870	void	1178	void
871	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1179	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
872	ALIAS:	1180	ALIAS:
873	aio_stat = EIO_STAT	1181	aio_stat = EIO_STAT
874	aio_lstat = EIO_LSTAT	1182	aio_lstat = EIO_LSTAT
		1183	aio_statvfs = EIO_STATVFS
875	PPCODE:	1184	PPCODE:
876	{	1185	{
877	dREQ;	1186	dREQ;
878		1187
879	req->sv1 = newSVsv (fh_or_path);	1188	req->sv1 = newSVsv (fh_or_path);
…		…
883	req->type = ix;	1192	req->type = ix;
884	req->ptr1 = SvPVbyte_nolen (req->sv1);	1193	req->ptr1 = SvPVbyte_nolen (req->sv1);
885	}	1194	}
886	else	1195	else
887	{	1196	{
888	req->type = EIO_FSTAT;	1197	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
889	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1198	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
890	}	1199	}
891		1200
892	REQ_SEND;	1201	REQ_SEND;
893	}	1202	}
		1203
		1204	UV
		1205	major (UV dev)
		1206	ALIAS:
		1207	minor = 1
		1208	CODE:
		1209	RETVAL = ix ? major (dev) : minor (dev);
		1210	OUTPUT:
		1211	RETVAL
		1212
		1213	UV
		1214	makedev (UV maj, UV min)
		1215	CODE:
		1216	RETVAL = makedev (maj, min);
		1217	OUTPUT:
		1218	RETVAL
894		1219
895	void	1220	void
896	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1221	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
897	PPCODE:	1222	PPCODE:
898	{	1223	{
…		…
1056		1381
1057	REQ_SEND;	1382	REQ_SEND;
1058	}	1383	}
1059		1384
1060	void	1385	void
		1386	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1387	ALIAS:
		1388	aio_mtouch = EIO_MTOUCH
		1389	aio_msync = EIO_MSYNC
		1390	PPCODE:
		1391	{
		1392	STRLEN svlen;
		1393	char *svptr = SvPVbyte (data, svlen);
		1394	UV len = SvUV (length);
		1395
		1396	if (offset < 0)
		1397	offset += svlen;
		1398
		1399	if (offset < 0 || offset > svlen)
		1400	croak ("offset outside of scalar");
		1401
		1402	if (!SvOK (length) || len + offset > svlen)
		1403	len = svlen - offset;
		1404
		1405	{
		1406	dREQ;
		1407
		1408	req->type = ix;
		1409	req->sv2 = SvREFCNT_inc (data);
		1410	req->ptr2 = (char *)svptr + offset;
		1411	req->size = len;
		1412	req->int1 = flags;
		1413
		1414	REQ_SEND;
		1415	}
		1416	}
		1417
		1418	void
		1419	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1420	PPCODE:
		1421	{
		1422	STRLEN svlen;
		1423	char *svptr = SvPVbyte (data, svlen);
		1424	UV len = SvUV (length);
		1425
		1426	if (offset < 0)
		1427	offset += svlen;
		1428
		1429	if (offset < 0 || offset > svlen)
		1430	croak ("offset outside of scalar");
		1431
		1432	if (!SvOK (length) || len + offset > svlen)
		1433	len = svlen - offset;
		1434
		1435	{
		1436	dREQ;
		1437
		1438	req->type = EIO_MLOCK;
		1439	req->sv2 = SvREFCNT_inc (data);
		1440	req->ptr2 = (char *)svptr + offset;
		1441	req->size = len;
		1442
		1443	REQ_SEND;
		1444	}
		1445	}
		1446
		1447	void
		1448	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1449	PPCODE:
		1450	{
		1451	dREQ;
		1452
		1453	req->type = EIO_MLOCKALL;
		1454	req->int1 = flags;
		1455
		1456	REQ_SEND;
		1457	}
		1458
		1459	void
1061	aio_busy (double delay, SV *callback=&PL_sv_undef)	1460	aio_busy (double delay, SV *callback=&PL_sv_undef)
1062	PPCODE:	1461	PPCODE:
1063	{	1462	{
1064	dREQ;	1463	dREQ;
1065		1464
…		…
1069	REQ_SEND;	1468	REQ_SEND;
1070	}	1469	}
1071		1470
1072	void	1471	void
1073	aio_group (SV *callback=&PL_sv_undef)	1472	aio_group (SV *callback=&PL_sv_undef)
1074	PROTOTYPE: ;$
1075	PPCODE:	1473	PPCODE:
1076	{	1474	{
1077	dREQ;	1475	dREQ;
1078		1476
1079	req->type = EIO_GROUP;	1477	req->type = EIO_GROUP;
1080		1478
1081	req_submit (req);	1479	req_submit (req);
1082	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1480	XPUSHs (req_sv (req, aio_grp_stash));
1083	}	1481	}
1084		1482
1085	void	1483	void
1086	aio_nop (SV *callback=&PL_sv_undef)	1484	aio_nop (SV *callback=&PL_sv_undef)
1087	ALIAS:	1485	ALIAS:
…		…
1096	REQ_SEND;	1494	REQ_SEND;
1097	}	1495	}
1098		1496
1099	int	1497	int
1100	aioreq_pri (int pri = 0)	1498	aioreq_pri (int pri = 0)
1101	PROTOTYPE: ;$
1102	CODE:	1499	CODE:
1103	RETVAL = next_pri;	1500	RETVAL = next_pri;
1104	if (items > 0)	1501	if (items > 0)
1105	{	1502	{
1106	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1503	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1118	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1515	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1119	next_pri = nice;	1516	next_pri = nice;
1120		1517
1121	void	1518	void
1122	flush ()	1519	flush ()
1123	PROTOTYPE:
1124	CODE:	1520	CODE:
1125	while (eio_nreqs ())	1521	while (eio_nreqs ())
1126	{	1522	{
1127	poll_wait ();	1523	poll_wait ();
1128	poll_cb ();	1524	poll_cb ();
1129	}	1525	}
1130		1526
1131	int	1527	int
1132	poll()	1528	poll ()
1133	PROTOTYPE:
1134	CODE:	1529	CODE:
1135	poll_wait ();	1530	poll_wait ();
1136	RETVAL = poll_cb ();	1531	RETVAL = poll_cb ();
1137	OUTPUT:	1532	OUTPUT:
1138	RETVAL	1533	RETVAL
1139		1534
1140	int	1535	int
1141	poll_fileno()	1536	poll_fileno ()
1142	PROTOTYPE:
1143	CODE:	1537	CODE:
1144	RETVAL = respipe [0];	1538	RETVAL = s_epipe_fd (&respipe);
1145	OUTPUT:	1539	OUTPUT:
1146	RETVAL	1540	RETVAL
1147		1541
1148	int	1542	int
1149	poll_cb(...)	1543	poll_cb (...)
1150	PROTOTYPE:	1544	PROTOTYPE:
1151	CODE:	1545	CODE:
1152	RETVAL = poll_cb ();	1546	RETVAL = poll_cb ();
1153	OUTPUT:	1547	OUTPUT:
1154	RETVAL	1548	RETVAL
1155		1549
1156	void	1550	void
1157	poll_wait()	1551	poll_wait ()
1158	PROTOTYPE:
1159	CODE:	1552	CODE:
1160	poll_wait ();	1553	poll_wait ();
1161		1554
1162	int	1555	int
1163	nreqs()	1556	nreqs ()
1164	PROTOTYPE:
1165	CODE:	1557	CODE:
1166	RETVAL = eio_nreqs ();	1558	RETVAL = eio_nreqs ();
1167	OUTPUT:	1559	OUTPUT:
1168	RETVAL	1560	RETVAL
1169		1561
1170	int	1562	int
1171	nready()	1563	nready ()
1172	PROTOTYPE:
1173	CODE:	1564	CODE:
1174	RETVAL = eio_nready ();	1565	RETVAL = eio_nready ();
1175	OUTPUT:	1566	OUTPUT:
1176	RETVAL	1567	RETVAL
1177		1568
1178	int	1569	int
1179	npending()	1570	npending ()
1180	PROTOTYPE:
1181	CODE:	1571	CODE:
1182	RETVAL = eio_npending ();	1572	RETVAL = eio_npending ();
1183	OUTPUT:	1573	OUTPUT:
1184	RETVAL	1574	RETVAL
1185		1575
1186	int	1576	int
1187	nthreads()	1577	nthreads ()
1188	PROTOTYPE:
1189	CODE:	1578	CODE:
1190	RETVAL = eio_nthreads ();	1579	RETVAL = eio_nthreads ();
1191	OUTPUT:	1580	OUTPUT:
1192	RETVAL	1581	RETVAL
1193		1582
1194	int	1583	int
1195	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1584	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1196	PROTOTYPE: $$$$
1197	CODE:	1585	CODE:
1198	{
1199	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1200	RETVAL = posix_fadvise (fh, offset, length, advice);	1586	RETVAL = posix_fadvise (fh, offset, length, advice);
1201	#else
1202	RETVAL = errno = ENOSYS;
1203	#endif
1204	}
1205	OUTPUT:	1587	OUTPUT:
1206	RETVAL	1588	RETVAL
1207		1589
1208	ssize_t	1590	ssize_t
1209	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1591	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1210	PROTOTYPE: $$$$
1211	CODE:	1592	CODE:
1212	eio_sendfile_sync (ofh, ifh, offset, count);	1593	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1594	OUTPUT:
		1595	RETVAL
		1596
		1597	void
		1598	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1599	PPCODE:
		1600	sv_unmagic (scalar, MMAP_MAGIC);
		1601	{
		1602	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1603	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1604	if (addr == (void *)-1)
		1605	XSRETURN_NO;
		1606
		1607	sv_force_normal (scalar);
		1608
		1609	/* we store the length in mg_obj, as namlen is I32 :/ */
		1610	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1611	->mg_obj = (SV *)length;
		1612
		1613	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1614
		1615	if (!(prot & PROT_WRITE))
		1616	SvREADONLY_on (scalar);
		1617
		1618	if (SvLEN (scalar))
		1619	Safefree (SvPVX (scalar));
		1620
		1621	SvPVX (scalar) = (char *)addr;
		1622	SvCUR_set (scalar, length);
		1623	SvLEN_set (scalar, 0);
		1624	SvPOK_only (scalar);
		1625
		1626	XSRETURN_YES;
		1627	}
		1628
		1629	void
		1630	munmap (SV *scalar)
		1631	CODE:
		1632	sv_unmagic (scalar, MMAP_MAGIC);
		1633
		1634	int
		1635	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1636	ALIAS:
		1637	mprotect = 1
		1638	CODE:
		1639	{
		1640	STRLEN svlen;
		1641	void *addr = SvPVbyte (scalar, svlen);
		1642	size_t len = SvUV (length);
		1643
		1644	if (offset < 0)
		1645	offset += svlen;
		1646
		1647	if (offset < 0 || offset > svlen)
		1648	croak ("offset outside of scalar");
		1649
		1650	if (!SvOK (length) || len + offset > svlen)
		1651	len = svlen - offset;
		1652
		1653	addr = (void *)(((intptr_t)addr) + offset);
		1654	eio_page_align (&addr, &len);
		1655
		1656	switch (ix)
		1657	{
		1658	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1659	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1660	}
		1661	}
		1662	OUTPUT:
		1663	RETVAL
		1664
		1665	int
		1666	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1667	CODE:
		1668	{
		1669	STRLEN svlen;
		1670	void *addr = SvPVbyte (scalar, svlen);
		1671	size_t len = SvUV (length);
		1672
		1673	if (offset < 0)
		1674	offset += svlen;
		1675
		1676	if (offset < 0 || offset > svlen)
		1677	croak ("offset outside of scalar");
		1678
		1679	if (!SvOK (length) || len + offset > svlen)
		1680	len = svlen - offset;
		1681
		1682	addr = (void *)(((intptr_t)addr) + offset);
		1683	eio_page_align (&addr, &len);
		1684	#if _POSIX_MEMLOCK_RANGE
		1685	RETVAL = munlock (addr, len);
		1686	#else
		1687	RETVAL = ((errno = ENOSYS), -1);
		1688	#endif
		1689	}
		1690	OUTPUT:
		1691	RETVAL
		1692
		1693	int
		1694	munlockall ()
		1695	CODE:
		1696	#if _POSIX_MEMLOCK
		1697	munlockall ();
		1698	#else
		1699	RETVAL = -1;
		1700	errno = ENOSYS;
		1701	#endif
		1702	OUTPUT:
		1703	RETVAL
1213		1704
1214	void _on_next_submit (SV *cb)	1705	void _on_next_submit (SV *cb)
1215	CODE:	1706	CODE:
1216	SvREFCNT_dec (on_next_submit);	1707	SvREFCNT_dec (on_next_submit);
1217	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1708	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1232	if (GIMME_V != G_VOID)	1723	if (GIMME_V != G_VOID)
1233	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1724	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1234		1725
1235	if (items > 1)	1726	if (items > 1)
1236	{	1727	{
1237	SV *cb_cv = get_cb (callback);	1728	SV *cb_cv =get_cb (callback);
1238		1729
1239	SvREFCNT_dec (req->callback);	1730	SvREFCNT_dec (req->callback);
1240	req->callback = SvREFCNT_inc (cb_cv);	1731	req->callback = SvREFCNT_inc (cb_cv);
1241	}	1732	}
1242	}	1733	}

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