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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.166 by root, Sun May 9 20:43:28 2010 UTC vs.
Revision 1.212 by root, Sun Apr 8 00:11:50 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
23	#endif	31	#endif
24		32
25	/* perl namespace pollution */	33	/* perl namespace pollution */
26	#undef VERSION	34	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		35
77	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	38	#undef readdir
80	#undef opendir	39	#undef opendir
81	#undef closedir	40	#undef closedir
82		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
84		78
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	79	#else
91	# define VAL64 NV	80
92	# define SvVAL64 SvNV	81	#include <sys/time.h>
93	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
94	#endif	89	#endif
95		90
96	/*****************************************************************************/	91	/*****************************************************************************/
97		92
98	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
108		103
109	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
112		107
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		109
115	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
116	SV *callback; \	111	SV *callback; \
117	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
118	STRLEN stroffset; \	114	STRLEN stroffset; \
119	SV *self;	115	SV *self;
120		116
121	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
122		118
		119	#include "libeio/config.h"
123	#include "libeio/eio.h"	120	#include "libeio/eio.h"
124		121
125	#ifndef POSIX_FADV_NORMAL	122	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	123	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	124	static void req_destroy (eio_req *grp);
128	#endif	125	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		126
145	#ifndef ST_NODEV	127	#include "libeio/eio.c"
146	# define ST_NODEV 0
147	#endif
148	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0
150	#endif
151	#ifndef ST_SYNCHRONOUS
152	# define ST_SYNCHRONOUS 0
153	#endif
154	#ifndef ST_MANDLOCK
155	# define ST_MANDLOCK 0
156	#endif
157	#ifndef ST_WRITE
158	# define ST_WRITE 0
159	#endif
160	#ifndef ST_APPEND
161	# define ST_APPEND 0
162	#endif
163	#ifndef ST_IMMUTABLE
164	# define ST_IMMUTABLE 0
165	#endif
166	#ifndef ST_NOATIME
167	# define ST_NOATIME 0
168	#endif
169	#ifndef ST_NODIRATIME
170	# define ST_NODIRATIME 0
171	#endif
172	#ifndef ST_RELATIME
173	# define ST_RELATIME 0
174	#endif
175		128
176	#ifndef MCL_CURRENT	129	#if !HAVE_POSIX_FADVISE
177	# define MCL_CURRENT 0	130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
178	#endif	131	#endif
179	#ifndef MCL_FUTURE	132
180	# define MCL_FUTURE 0	133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
181	#endif	135	#endif
182		136
183	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	138	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
186	# else	140	# else
187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188	# endif	142	# endif
189	#endif	143	#endif
190	#ifndef MAP_HUGETLB	144
191	# define MAP_HUGETLB 0	145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
192	#endif	150	#endif
193	#ifndef MAP_LOCKED	151	#ifndef major
194	# define MAP_LOCKED 0	152	# define major(dev) ((dev) >> 8)
195	#endif	153	#endif
196	#ifndef MAP_NORESERVE	154	#ifndef minor
197	# define MAP_NORESERVE 0	155	# define minor(dev) ((dev) & 0xff)
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif	156	#endif
205		157
206	#ifndef PAGESIZE	158	#ifndef PAGESIZE
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	160	#endif
209		161
210	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
211	#define EIO_FINISH(req) req_invoke (req)	163
212	static void req_destroy (eio_req *grp);	164	static void
213	#define EIO_DESTROY(req) req_destroy (req)	165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 64 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		200	break; /* autosizing successful, we are done */
		201
		202	fiemap->fm_flags = req->int2;
		203	fiemap->fm_extent_count = 0;
		204
		205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		206	return;
		207
		208	count = fiemap->fm_mapped_extents;
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
214		221
215	enum {	222	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	224	};
218		225
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
223		229
224	static SV *on_next_submit;	230	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	232	static int max_outstanding;
227		233
228	static s_epipe respipe;	234	static s_epipe respipe;
229		235
230	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
232		238
233	static void want_poll (void)	239	static void
		240	want_poll (void)
234	{	241	{
235	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
237	}	244	}
238		245
239	static void done_poll (void)	246	static void
		247	done_poll (void)
240	{	248	{
241	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
243	}	251	}
244		252
245	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
247	{	256	{
248	if (!req->self)	257	if (!req->self)
249	{	258	{
250	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	261	}
253		262
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	264	}
256		265
257	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
258	{	274	{
259	MAGIC *mg;	275	MAGIC *mg;
260		276
261	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
266		283
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		285
269	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	287	}
271		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
272	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
273	{	302	{
274	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
275	{	304	{
276	dSP;	305	dSP;
277		306
…		…
285	FREETMPS;	314	FREETMPS;
286	LEAVE;	315	LEAVE;
287	}	316	}
288	}	317	}
289		318
		319	static void
290	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
291	{	321	{
292	eio_submit (req);	322	eio_submit (req);
293		323
294	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
295	{	325	{
…		…
302	PUTBACK;	332	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
304	}	334	}
305	}	335	}
306		336
		337	static int
307	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
308	{	339	{
309	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
310	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
311		342
312	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
…		…
323	/* do not recreate the result IV from scratch each time */	354	/* do not recreate the result IV from scratch each time */
324	if (expect_true (sv_result_cache))	355	if (expect_true (sv_result_cache))
325	{	356	{
326	sv_result = sv_result_cache; sv_result_cache = 0;	357	sv_result = sv_result_cache; sv_result_cache = 0;
327	SvIV_set (sv_result, req->result);	358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
328	}	360	}
329	else	361	else
330	{	362	{
331	sv_result = newSViv (req->result);	363	sv_result = newSViv (req->result);
332	SvREADONLY_on (sv_result);	364	SvREADONLY_on (sv_result);
333	}	365	}
334		366
335	switch (req->type)	367	switch (req->type)
336	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
337	case EIO_READDIR:	373	case EIO_READDIR:
338	{	374	{
339	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
340		376
341	if (req->result >= 0)	377	if (req->result >= 0)
…		…
429	case EIO_STATVFS:	465	case EIO_STATVFS:
430	case EIO_FSTATVFS:	466	case EIO_FSTATVFS:
431	{	467	{
432	SV *rv = &PL_sv_undef;	468	SV *rv = &PL_sv_undef;
433		469
		470	#ifndef _WIN32
434	if (req->result >= 0)	471	if (req->result >= 0)
435	{	472	{
436	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
437	HV *hv = newHV ();	474	HV *hv = newHV ();
438		475
…		…
448	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
449	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
450	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
451	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
452	}	489	}
		490	#endif
453		491
454	PUSHs (rv);	492	PUSHs (rv);
455	}	493	}
456		494
457	break;	495	break;
…		…
473	case EIO_NOP:	511	case EIO_NOP:
474	case EIO_BUSY:	512	case EIO_BUSY:
475	break;	513	break;
476		514
477	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
478	if (req->result > 0)	517	if (req->result > 0)
479	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
480	break;	519	break;
481		520
482	case EIO_STAT:	521	case EIO_STAT:
483	case EIO_LSTAT:	522	case EIO_LSTAT:
484	case EIO_FSTAT:	523	case EIO_FSTAT:
485	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
486	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
487	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		529
488	PUSHs (sv_result);	530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
489	break;	535	break;
490		536
491	case EIO_READ:	537	case EIO_READ:
492	{	538	{
493	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
496	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
497	PUSHs (sv_result);	543	PUSHs (sv_result);
498	}	544	}
499	break;	545	break;
500		546
501	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	#if HAVE_FIEMAP
		551	if (!req->result)
		552	{
		553	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		554
		555	if (fiemap->fm_extent_count)
		556	{
		557	AV *av = newAV ();
		558	int i;
		559
		560	while (fiemap->fm_mapped_extents)
		561	{
		562	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		563	AV *ext_av = newAV ();
		564
		565	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		566	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		567	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		568	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		569
		570	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		571	}
		572
		573	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		574	}
		575	else
		576	{
		577	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		578	PUSHs (sv_result);
		579	}
		580	}
		581	#endif
		582	}
		583	else
		584	PUSHs (sv_result);
		585	break;
		586
		587	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
502	if (req->result > 0)	588	if (req->result > 0)
503	SvIV_set (sv_result, 0);	589	SvIV_set (sv_result, 0);
504	/* FALLTHROUGH */	590	/* FALLTHROUGH */
505		591
506	default:	592	default:
…		…
526	}	612	}
527		613
528	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
529	}	615	}
530		616
		617	static void
531	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
532	{	619	{
533	if (req->self)	620	if (req->self)
534	{	621	{
535	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
536	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
537	}	624	}
538		625
539	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
540	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
541	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
542		631
543	Safefree (req);	632	free (req);
544	}	633	}
545		634
		635	static void
546	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
547	{	637	{
548	aio_req sub;
549
550	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
551	return;	639	return;
552		640
553	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
554	grp->sv2 = 0;	642	grp->sv2 = 0;
555		643
556	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
557	}	645	}
558		646
559	static void	647	static void ecb_cold
560	create_respipe (void)	648	create_respipe (void)
561	{	649	{
562	if (s_epipe_renew (&respipe))	650	if (s_epipe_renew (&respipe))
563	croak ("IO::AIO: unable to initialize result pipe");	651	croak ("IO::AIO: unable to initialize result pipe");
564	}	652	}
565		653
566	static void poll_wait (void)	654	static void
		655	poll_wait (void)
567	{	656	{
568	while (eio_nreqs ())	657	while (eio_nreqs ())
569	{	658	{
570	int size;	659	int size;
571		660
…		…
580		669
581	s_epipe_wait (&respipe);	670	s_epipe_wait (&respipe);
582	}	671	}
583	}	672	}
584		673
585	static int poll_cb (void)	674	static int
		675	poll_cb (void)
586	{	676	{
587	for (;;)	677	for (;;)
588	{	678	{
589	int res = eio_poll ();	679	int res = eio_poll ();
590		680
…		…
596		686
597	poll_wait ();	687	poll_wait ();
598	}	688	}
599	}	689	}
600		690
601	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
602	{	693	{
603	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
604	}	698	}
605		699
606	/*****************************************************************************/	700	/*****************************************************************************/
607		701
608	#if !_POSIX_MAPPED_FILES	702	#if !_POSIX_MAPPED_FILES
609	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	703	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
610	# define munmap(addr,length) (errno = ENOSYS, -1)	704	# define munmap(addr,length) (errno = ENOSYS, -1)
611	#endif	705	#endif
612		706
		707	#if !_POSIX_MEMORY_PROTECTION
		708	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		709	# define PROT_NONE 0
		710	# define PROT_WRITE 0
		711	# define MAP_PRIVATE 0
		712	# define MAP_SHARED 0
		713	# define MAP_FIXED 0
		714	#endif
		715
613	#define MMAP_MAGIC PERL_MAGIC_ext	716	#define MMAP_MAGIC PERL_MAGIC_ext
614		717
615	static int	718	static int ecb_cold
616	mmap_free (pTHX_ SV *sv, MAGIC *mg)	719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
617	{	720	{
618	int old_errno = errno;	721	int old_errno = errno;
619	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
620	errno = old_errno;	723	errno = old_errno;
621		724
622	mg->mg_obj = 0; /* just in case */	725	mg->mg_obj = 0; /* just in case */
623		726
624	SvREADONLY_off (sv);	727	SvREADONLY_off (sv);
		728
		729	if (SvPVX (sv) != mg->mg_ptr)
		730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		731
625	SvCUR_set (sv, 0);	732	SvCUR_set (sv, 0);
626	SvLEN_set (sv, 0);
627	SvPVX (sv) = 0;	733	SvPVX (sv) = 0;
628	SvOK_off (sv);	734	SvOK_off (sv);
629		735
630	return 0;	736	return 0;
631	}	737	}
…		…
641	{	747	{
642	SvGETMAGIC (cb_sv);	748	SvGETMAGIC (cb_sv);
643	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	749	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
644	}	750	}
645		751
		752	static aio_req ecb_noinline
		753	dreq (SV *callback)
		754	{
		755	SV *cb_cv;
		756	aio_req req;
		757	int req_pri = next_pri;
		758	next_pri = EIO_PRI_DEFAULT;
		759
		760	cb_cv = get_cb (callback);
		761
		762	req = calloc (sizeof (*req), 1);
		763	if (!req)
		764	croak ("out of memory during eio_req allocation");
		765
		766	req->callback = SvREFCNT_inc (cb_cv);
		767	req->pri = req_pri;
		768
		769	return req;
		770	}
		771
646	#define dREQ \	772	#define dREQ \
647	SV *cb_cv; \	773	aio_req req = dreq (callback); \
648	aio_req req; \
649	int req_pri = next_pri; \
650	next_pri = EIO_PRI_DEFAULT; \
651	\
652	cb_cv = get_cb (callback); \
653	\
654	Newz (0, req, 1, eio_req); \
655	if (!req) \
656	croak ("out of memory during eio_req allocation"); \
657	\
658	req->callback = SvREFCNT_inc (cb_cv); \
659	req->pri = req_pri
660		774
661	#define REQ_SEND \	775	#define REQ_SEND \
662	PUTBACK; \	776	PUTBACK; \
663	req_submit (req); \	777	req_submit (req); \
664	SPAGAIN; \	778	SPAGAIN; \
665	\	779	\
666	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
667	XPUSHs (req_sv (req, aio_req_stash));	781	XPUSHs (req_sv (req, aio_req_stash));
668		782
		783	ecb_inline void
		784	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		785	{
		786	if (expect_false (SvROK (path)))
		787	{
		788	SV *rv = SvRV (path);
		789	SV *wdob;
		790
		791	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		792	{
		793	path = AvARRAY (rv)[1];
		794	wdob = AvARRAY (rv)[0];
		795
		796	if (SvOK (wdob))
		797	{
		798	*wd = SvAIO_WD (wdob);
		799	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		800	}
		801	else
		802	*wd = EIO_INVALID_WD;
		803	}
		804	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		805	{
		806	*wd = (aio_wd)(long)SvIVX (rv);
		807	*wdsv = SvREFCNT_inc_NN (rv);
		808	*ptr = ".";
		809	return; /* path set to "." */
		810	}
		811	else
		812	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		813	}
		814
		815	*pathsv = newSVsv (path);
		816	*ptr = SvPVbyte_nolen (*pathsv);
		817	}
		818
		819	static void ecb_noinline
		820	req_set_path1 (aio_req req, SV *path)
		821	{
		822	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		823	}
		824
		825	static void ecb_noinline
		826	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		827	{
		828	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		829
		830	switch (SvTYPE (rv))
		831	{
		832	case SVt_PVIO:
		833	case SVt_PVLV:
		834	case SVt_PVGV:
		835	req->type = type_fh;
		836	req->sv1 = newSVsv (fh_or_path);
		837	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		838	break;
		839
		840	default:
		841	req->type = type_path;
		842	req_set_path1 (req, fh_or_path);
		843	break;
		844	}
		845	}
		846
		847	XS(boot_IO__AIO) ecb_cold;
		848
669	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
670		850
671	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
672		852
673	BOOT:	853	BOOT:
…		…
677	IV iv;	857	IV iv;
678	} *civ, const_iv[] = {	858	} *civ, const_iv[] = {
679	# define const_niv(name, value) { # name, (IV) value },	859	# define const_niv(name, value) { # name, (IV) value },
680	# define const_iv(name) { # name, (IV) name },	860	# define const_iv(name) { # name, (IV) name },
681	# define const_eio(name) { # name, (IV) EIO_ ## name },	861	# define const_eio(name) { # name, (IV) EIO_ ## name },
		862
		863	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		864
		865	const_iv (ENOSYS)
682	const_iv (EXDEV)	866	const_iv (EXDEV)
683	const_iv (ENOSYS)	867	const_iv (EBADR)
		868
684	const_iv (O_RDONLY)	869	const_iv (O_RDONLY)
685	const_iv (O_WRONLY)	870	const_iv (O_WRONLY)
686	const_iv (O_RDWR)	871	const_iv (O_RDWR)
687	const_iv (O_CREAT)	872	const_iv (O_CREAT)
688	const_iv (O_TRUNC)	873	const_iv (O_TRUNC)
689	const_iv (O_EXCL)	874	const_iv (O_EXCL)
690	const_iv (O_APPEND)	875	const_iv (O_APPEND)
691	#ifndef _WIN32	876
		877	const_iv (O_ASYNC)
		878	const_iv (O_DIRECT)
		879	const_iv (O_NOATIME)
		880
		881	const_iv (O_CLOEXEC)
		882	const_iv (O_NOCTTY)
		883	const_iv (O_NOFOLLOW)
		884	const_iv (O_NONBLOCK)
		885	const_iv (O_EXEC)
		886	const_iv (O_SEARCH)
		887	const_iv (O_DIRECTORY)
		888	const_iv (O_DSYNC)
		889	const_iv (O_RSYNC)
		890	const_iv (O_SYNC)
		891	const_iv (O_TTY_INIT)
		892
692	const_iv (S_IFIFO)	893	const_iv (S_IFIFO)
693	#endif	894	const_iv (S_IFCHR)
		895	const_iv (S_IFBLK)
		896	const_iv (S_IFLNK)
		897	const_iv (S_IFREG)
		898	const_iv (S_IFDIR)
		899	const_iv (S_IFWHT)
		900	const_iv (S_IFSOCK)
		901	const_iv (S_IFMT)
		902
694	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
695	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
696	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
697	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
698	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
699	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		909
		910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
700		915
701	const_iv (ST_RDONLY)	916	const_iv (ST_RDONLY)
702	const_iv (ST_NOSUID)	917	const_iv (ST_NOSUID)
703	const_iv (ST_NODEV)	918	const_iv (ST_NODEV)
704	const_iv (ST_NOEXEC)	919	const_iv (ST_NOEXEC)
…		…
709	const_iv (ST_IMMUTABLE)	924	const_iv (ST_IMMUTABLE)
710	const_iv (ST_NOATIME)	925	const_iv (ST_NOATIME)
711	const_iv (ST_NODIRATIME)	926	const_iv (ST_NODIRATIME)
712	const_iv (ST_RELATIME)	927	const_iv (ST_RELATIME)
713		928
		929	const_iv (PROT_NONE)
714	const_iv (PROT_EXEC)	930	const_iv (PROT_EXEC)
715	const_iv (PROT_NONE)
716	const_iv (PROT_READ)	931	const_iv (PROT_READ)
717	const_iv (PROT_WRITE)	932	const_iv (PROT_WRITE)
718		933
719	/*const_iv (MAP_FIXED)*/	934	/*const_iv (MAP_FIXED)*/
720	const_iv (MAP_PRIVATE)	935	const_iv (MAP_PRIVATE)
…		…
726	const_iv (MAP_LOCKED)	941	const_iv (MAP_LOCKED)
727	const_iv (MAP_NORESERVE)	942	const_iv (MAP_NORESERVE)
728	const_iv (MAP_POPULATE)	943	const_iv (MAP_POPULATE)
729	const_iv (MAP_NONBLOCK)	944	const_iv (MAP_NONBLOCK)
730		945
		946	const_iv (FIEMAP_FLAG_SYNC)
		947	const_iv (FIEMAP_FLAG_XATTR)
		948	const_iv (FIEMAP_FLAGS_COMPAT)
		949	const_iv (FIEMAP_EXTENT_LAST)
		950	const_iv (FIEMAP_EXTENT_UNKNOWN)
		951	const_iv (FIEMAP_EXTENT_DELALLOC)
		952	const_iv (FIEMAP_EXTENT_ENCODED)
		953	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		954	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		955	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		956	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		957	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		958	const_iv (FIEMAP_EXTENT_MERGED)
		959	const_iv (FIEMAP_EXTENT_SHARED)
		960
		961	const_eio (SEEK_SET)
		962	const_eio (SEEK_CUR)
		963	const_eio (SEEK_END)
		964
731	const_iv (MCL_FUTURE)	965	const_eio (MCL_FUTURE)
732	const_iv (MCL_CURRENT)	966	const_eio (MCL_CURRENT)
733		967
734	const_eio (MS_ASYNC)	968	const_eio (MS_ASYNC)
735	const_eio (MS_INVALIDATE)	969	const_eio (MS_INVALIDATE)
736	const_eio (MS_SYNC)	970	const_eio (MS_SYNC)
737		971
738	const_eio (MT_MODIFY)	972	const_eio (MT_MODIFY)
739		973
740	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	974	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
741	const_eio (SYNC_FILE_RANGE_WRITE)	975	const_eio (SYNC_FILE_RANGE_WRITE)
742	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	976	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		977
		978	const_eio (FALLOC_FL_KEEP_SIZE)
743		979
744	const_eio (READDIR_DENTS)	980	const_eio (READDIR_DENTS)
745	const_eio (READDIR_DIRS_FIRST)	981	const_eio (READDIR_DIRS_FIRST)
746	const_eio (READDIR_STAT_ORDER)	982	const_eio (READDIR_STAT_ORDER)
747	const_eio (READDIR_FOUND_UNKNOWN)	983	const_eio (READDIR_FOUND_UNKNOWN)
…		…
758	};	994	};
759		995
760	aio_stash = gv_stashpv ("IO::AIO" , 1);	996	aio_stash = gv_stashpv ("IO::AIO" , 1);
761	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	997	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
762	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	998	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		999	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
763		1000
764	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1001	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
765	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1002	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
766		1003
767	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1004	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
768		1005
769	create_respipe ();	1006	reinit ();
770
771	if (eio_init (want_poll, done_poll) < 0)
772	croak ("IO::AIO: unable to initialise eio library");
773
774	/* atfork child called in fifo order, so before eio's handler */
775	X_THREAD_ATFORK (0, 0, atfork_child);
776	}	1007	}
777		1008
778	void	1009	void
		1010	reinit ()
		1011	PROTOTYPE:
		1012
		1013	void
779	max_poll_reqs (int nreqs)	1014	max_poll_reqs (unsigned int nreqs)
780	PROTOTYPE: $	1015	PROTOTYPE: $
781	CODE:	1016	CODE:
782	eio_set_max_poll_reqs (nreqs);	1017	eio_set_max_poll_reqs (nreqs);
783		1018
784	void	1019	void
…		…
786	PROTOTYPE: $	1021	PROTOTYPE: $
787	CODE:	1022	CODE:
788	eio_set_max_poll_time (nseconds);	1023	eio_set_max_poll_time (nseconds);
789		1024
790	void	1025	void
791	min_parallel (int nthreads)	1026	min_parallel (unsigned int nthreads)
792	PROTOTYPE: $	1027	PROTOTYPE: $
793	CODE:	1028	CODE:
794	eio_set_min_parallel (nthreads);	1029	eio_set_min_parallel (nthreads);
795		1030
796	void	1031	void
797	max_parallel (int nthreads)	1032	max_parallel (unsigned int nthreads)
798	PROTOTYPE: $	1033	PROTOTYPE: $
799	CODE:	1034	CODE:
800	eio_set_max_parallel (nthreads);	1035	eio_set_max_parallel (nthreads);
801		1036
802	void	1037	void
803	max_idle (int nthreads)	1038	max_idle (unsigned int nthreads)
804	PROTOTYPE: $	1039	PROTOTYPE: $
805	CODE:	1040	CODE:
806	eio_set_max_idle (nthreads);	1041	eio_set_max_idle (nthreads);
807		1042
808	void	1043	void
		1044	idle_timeout (unsigned int seconds)
		1045	PROTOTYPE: $
		1046	CODE:
		1047	eio_set_idle_timeout (seconds);
		1048
		1049	void
809	max_outstanding (int maxreqs)	1050	max_outstanding (unsigned int maxreqs)
810	PROTOTYPE: $	1051	PROTOTYPE: $
811	CODE:	1052	CODE:
812	max_outstanding = maxreqs;	1053	max_outstanding = maxreqs;
813		1054
814	void	1055	void
		1056	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1057	PPCODE:
		1058	{
		1059	dREQ;
		1060
		1061	req->type = EIO_WD_OPEN;
		1062	req_set_path1 (req, pathname);
		1063
		1064	REQ_SEND;
		1065	}
		1066
		1067	void
815	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1068	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
816	PROTOTYPE: $$$;$
817	PPCODE:	1069	PPCODE:
818	{	1070	{
819	dREQ;	1071	dREQ;
820		1072
821	req->type = EIO_OPEN;	1073	req->type = EIO_OPEN;
822	req->sv1 = newSVsv (pathname);	1074	req_set_path1 (req, pathname);
823	req->ptr1 = SvPVbyte_nolen (req->sv1);
824	req->int1 = flags;	1075	req->int1 = flags;
825	req->int2 = mode;	1076	req->int2 = mode;
826		1077
827	REQ_SEND;	1078	REQ_SEND;
828	}	1079	}
829		1080
830	void	1081	void
831	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1082	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
832	PROTOTYPE: $;$
833	ALIAS:	1083	ALIAS:
834	aio_fsync = EIO_FSYNC	1084	aio_fsync = EIO_FSYNC
835	aio_fdatasync = EIO_FDATASYNC	1085	aio_fdatasync = EIO_FDATASYNC
		1086	aio_syncfs = EIO_SYNCFS
836	PPCODE:	1087	PPCODE:
837	{	1088	{
838	int fd = s_fileno_croak (fh, 0);	1089	int fd = s_fileno_croak (fh, 0);
839	dREQ;	1090	dREQ;
840		1091
841	req->type = ix;	1092	req->type = ix;
842	req->sv1 = newSVsv (fh);	1093	req->sv1 = newSVsv (fh);
843	req->int1 = fd;	1094	req->int1 = fd;
844		1095
845	REQ_SEND (req);	1096	REQ_SEND;
846	}	1097	}
847		1098
848	void	1099	void
849	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1100	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
850	PROTOTYPE: $$$$;$
851	PPCODE:	1101	PPCODE:
852	{	1102	{
853	int fd = s_fileno_croak (fh, 0);	1103	int fd = s_fileno_croak (fh, 0);
854	dREQ;	1104	dREQ;
855		1105
…		…
858	req->int1 = fd;	1108	req->int1 = fd;
859	req->offs = offset;	1109	req->offs = offset;
860	req->size = nbytes;	1110	req->size = nbytes;
861	req->int2 = flags;	1111	req->int2 = flags;
862		1112
863	REQ_SEND (req);	1113	REQ_SEND;
864	}	1114	}
865		1115
866	void	1116	void
867	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1117	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
868	PROTOTYPE: $;$
869	PPCODE:	1118	PPCODE:
870	{	1119	{
871	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
872	int fd = s_fileno_croak (fh, 0);	1120	int fd = s_fileno_croak (fh, 0);
873	dREQ;	1121	dREQ;
874		1122
875	if (close_pipe < 0)	1123	req->type = EIO_FALLOCATE;
		1124	req->sv1 = newSVsv (fh);
		1125	req->int1 = fd;
		1126	req->int2 = mode;
		1127	req->offs = offset;
		1128	req->size = len;
		1129
		1130	REQ_SEND;
		1131	}
		1132
		1133	void
		1134	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1135	PPCODE:
		1136	{
		1137	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1138	int fd = s_fileno_croak (fh, 0);
		1139	dREQ;
		1140
		1141	if (expect_false (close_fd < 0))
876	{	1142	{
877	int pipefd [2];	1143	int pipefd [2];
878		1144
		1145	if (
		1146	#ifdef _WIN32
		1147	_pipe (pipefd, 1, _O_BINARY) < 0
		1148	#else
879	if (pipe (pipefd) < 0	1149	pipe (pipefd) < 0
880	|| close (pipefd [1]) < 0
881	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1150	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1151	#endif
		1152	|| close (pipefd [1]) < 0
		1153	)
882	abort (); /*D*/	1154	abort (); /*D*/
883		1155
884	close_pipe = pipefd [0];	1156	close_fd = pipefd [0];
885	}	1157	}
886		1158
887	req->type = EIO_DUP2;	1159	req->type = EIO_DUP2;
888	req->int1 = close_pipe;	1160	req->int1 = close_fd;
889	req->sv2 = newSVsv (fh);	1161	req->sv2 = newSVsv (fh);
890	req->int2 = fd;	1162	req->int2 = fd;
891		1163
892	REQ_SEND (req);	1164	REQ_SEND;
		1165	}
		1166
		1167	void
		1168	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1169	PPCODE:
		1170	{
		1171	int fd = s_fileno_croak (fh, 0);
		1172	dREQ;
		1173
		1174	req->type = EIO_SEEK;
		1175	req->sv1 = newSVsv (fh);
		1176	req->int1 = fd;
		1177	req->offs = SvVAL64 (offset);
		1178	req->int2 = whence;
		1179
		1180	REQ_SEND;
893	}	1181	}
894		1182
895	void	1183	void
896	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1184	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
897	ALIAS:	1185	ALIAS:
898	aio_read = EIO_READ	1186	aio_read = EIO_READ
899	aio_write = EIO_WRITE	1187	aio_write = EIO_WRITE
900	PROTOTYPE: $$$$$;$
901	PPCODE:	1188	PPCODE:
902	{	1189	{
903	STRLEN svlen;	1190	STRLEN svlen;
904	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1191	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
905	char *svptr = SvPVbyte (data, svlen);	1192	char *svptr = SvPVbyte (data, svlen);
…		…
945	REQ_SEND;	1232	REQ_SEND;
946	}	1233	}
947	}	1234	}
948		1235
949	void	1236	void
950	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1237	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
951	PROTOTYPE: $$;$	1238	ALIAS:
		1239	aio_readlink = EIO_READLINK
		1240	aio_realpath = EIO_REALPATH
952	PPCODE:	1241	PPCODE:
953	{	1242	{
954	SV *data;
955	dREQ;	1243	dREQ;
956		1244
957	req->type = EIO_READLINK;	1245	req->type = ix;
958	req->sv1 = newSVsv (path);	1246	req_set_path1 (req, pathname);
959	req->ptr1 = SvPVbyte_nolen (req->sv1);
960		1247
961	REQ_SEND;	1248	REQ_SEND;
962	}	1249	}
963		1250
964	void	1251	void
965	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1252	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
966	PROTOTYPE: $$$$;$
967	PPCODE:	1253	PPCODE:
968	{	1254	{
969	int ifd = s_fileno_croak (in_fh , 0);	1255	int ifd = s_fileno_croak (in_fh , 0);
970	int ofd = s_fileno_croak (out_fh, 1);	1256	int ofd = s_fileno_croak (out_fh, 1);
971	dREQ;	1257	dREQ;
…		…
981	REQ_SEND;	1267	REQ_SEND;
982	}	1268	}
983		1269
984	void	1270	void
985	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1271	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
986	PROTOTYPE: $$$;$
987	PPCODE:	1272	PPCODE:
988	{	1273	{
989	int fd = s_fileno_croak (fh, 0);	1274	int fd = s_fileno_croak (fh, 0);
990	dREQ;	1275	dREQ;
991		1276
…		…
1006	aio_statvfs = EIO_STATVFS	1291	aio_statvfs = EIO_STATVFS
1007	PPCODE:	1292	PPCODE:
1008	{	1293	{
1009	dREQ;	1294	dREQ;
1010		1295
1011	req->sv1 = newSVsv (fh_or_path);	1296	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1012
1013	if (SvPOK (req->sv1))
1014	{
1015	req->type = ix;
1016	req->ptr1 = SvPVbyte_nolen (req->sv1);
1017	}
1018	else
1019	{
1020	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1021	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1022	}
1023		1297
1024	REQ_SEND;	1298	REQ_SEND;
1025	}	1299	}
		1300
		1301	UV
		1302	major (UV dev)
		1303	ALIAS:
		1304	minor = 1
		1305	CODE:
		1306	RETVAL = ix ? major (dev) : minor (dev);
		1307	OUTPUT:
		1308	RETVAL
		1309
		1310	UV
		1311	makedev (UV maj, UV min)
		1312	CODE:
		1313	RETVAL = makedev (maj, min);
		1314	OUTPUT:
		1315	RETVAL
1026		1316
1027	void	1317	void
1028	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1318	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1029	PPCODE:	1319	PPCODE:
1030	{	1320	{
1031	dREQ;	1321	dREQ;
1032		1322
1033	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1323	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1034	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1324	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1035	req->sv1 = newSVsv (fh_or_path);	1325	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1036
1037	if (SvPOK (req->sv1))
1038	{
1039	req->type = EIO_UTIME;
1040	req->ptr1 = SvPVbyte_nolen (req->sv1);
1041	}
1042	else
1043	{
1044	req->type = EIO_FUTIME;
1045	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1046	}
1047		1326
1048	REQ_SEND;	1327	REQ_SEND;
1049	}	1328	}
1050		1329
1051	void	1330	void
1052	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1331	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1053	PPCODE:	1332	PPCODE:
1054	{	1333	{
1055	dREQ;	1334	dREQ;
1056		1335
1057	req->sv1 = newSVsv (fh_or_path);
1058	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1336	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1059		1337	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1060	if (SvPOK (req->sv1))
1061	{
1062	req->type = EIO_TRUNCATE;
1063	req->ptr1 = SvPVbyte_nolen (req->sv1);
1064	}
1065	else
1066	{
1067	req->type = EIO_FTRUNCATE;
1068	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1069	}
1070		1338
1071	REQ_SEND;	1339	REQ_SEND;
1072	}	1340	}
1073		1341
1074	void	1342	void
1075	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1343	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1076	ALIAS:
1077	aio_chmod = EIO_CHMOD
1078	aio_mkdir = EIO_MKDIR
1079	PPCODE:	1344	PPCODE:
1080	{	1345	{
1081	dREQ;	1346	dREQ;
1082		1347
1083	req->int2 = mode;	1348	req->int2 = mode;
1084	req->sv1 = newSVsv (fh_or_path);	1349	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1085
1086	if (SvPOK (req->sv1))
1087	{
1088	req->type = ix;
1089	req->ptr1 = SvPVbyte_nolen (req->sv1);
1090	}
1091	else
1092	{
1093	req->type = EIO_FCHMOD;
1094	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1095	}
1096		1350
1097	REQ_SEND;	1351	REQ_SEND;
1098	}	1352	}
1099		1353
1100	void	1354	void
…		…
1103	{	1357	{
1104	dREQ;	1358	dREQ;
1105		1359
1106	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1360	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1107	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1361	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1108	req->sv1 = newSVsv (fh_or_path);	1362	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1109
1110	if (SvPOK (req->sv1))
1111	{
1112	req->type = EIO_CHOWN;
1113	req->ptr1 = SvPVbyte_nolen (req->sv1);
1114	}
1115	else
1116	{
1117	req->type = EIO_FCHOWN;
1118	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1119	}
1120		1363
1121	REQ_SEND;	1364	REQ_SEND;
1122	}	1365	}
1123		1366
1124	void	1367	void
…		…
1126	PPCODE:	1369	PPCODE:
1127	{	1370	{
1128	dREQ;	1371	dREQ;
1129		1372
1130	req->type = EIO_READDIR;	1373	req->type = EIO_READDIR;
1131	req->sv1 = newSVsv (pathname);
1132	req->ptr1 = SvPVbyte_nolen (req->sv1);
1133	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1374	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1134		1375
1135	if (flags & EIO_READDIR_DENTS)	1376	if (flags & EIO_READDIR_DENTS)
1136	req->int1 |= EIO_READDIR_CUSTOM2;	1377	req->int1 |= EIO_READDIR_CUSTOM2;
1137		1378
		1379	req_set_path1 (req, pathname);
		1380
1138	REQ_SEND;	1381	REQ_SEND;
		1382	}
		1383
		1384	void
		1385	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1386	PPCODE:
		1387	{
		1388	dREQ;
		1389
		1390	req->type = EIO_MKDIR;
		1391	req->int2 = mode;
		1392	req_set_path1 (req, pathname);
		1393
		1394	REQ_SEND;
1139	}	1395	}
1140		1396
1141	void	1397	void
1142	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1398	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1143	ALIAS:	1399	ALIAS:
…		…
1147	PPCODE:	1403	PPCODE:
1148	{	1404	{
1149	dREQ;	1405	dREQ;
1150		1406
1151	req->type = ix;	1407	req->type = ix;
1152	req->sv1 = newSVsv (pathname);	1408	req_set_path1 (req, pathname);
1153	req->ptr1 = SvPVbyte_nolen (req->sv1);
1154		1409
1155	REQ_SEND;	1410	REQ_SEND;
1156	}	1411	}
1157		1412
1158	void	1413	void
…		…
1161	aio_link = EIO_LINK	1416	aio_link = EIO_LINK
1162	aio_symlink = EIO_SYMLINK	1417	aio_symlink = EIO_SYMLINK
1163	aio_rename = EIO_RENAME	1418	aio_rename = EIO_RENAME
1164	PPCODE:	1419	PPCODE:
1165	{	1420	{
		1421	eio_wd wd2 = 0;
1166	dREQ;	1422	dREQ;
1167		1423
1168	req->type = ix;	1424	req->type = ix;
1169	req->sv1 = newSVsv (oldpath);	1425	req_set_path1 (req, oldpath);
1170	req->ptr1 = SvPVbyte_nolen (req->sv1);	1426	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1171	req->sv2 = newSVsv (newpath);	1427	req->int3 = (long)wd2;
1172	req->ptr2 = SvPVbyte_nolen (req->sv2);
1173		1428
1174	REQ_SEND;	1429	REQ_SEND;
1175	}	1430	}
1176		1431
1177	void	1432	void
…		…
1179	PPCODE:	1434	PPCODE:
1180	{	1435	{
1181	dREQ;	1436	dREQ;
1182		1437
1183	req->type = EIO_MKNOD;	1438	req->type = EIO_MKNOD;
1184	req->sv1 = newSVsv (pathname);
1185	req->ptr1 = SvPVbyte_nolen (req->sv1);
1186	req->int2 = (mode_t)mode;	1439	req->int2 = (mode_t)mode;
1187	req->offs = dev;	1440	req->offs = dev;
		1441	req_set_path1 (req, pathname);
1188		1442
1189	REQ_SEND;	1443	REQ_SEND;
1190	}	1444	}
1191		1445
1192	void	1446	void
1193	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1447	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1194	ALIAS:	1448	ALIAS:
1195	aio_mtouch = EIO_MTOUCH	1449	aio_mtouch = EIO_MTOUCH
1196	aio_msync = EIO_MSYNC	1450	aio_msync = EIO_MSYNC
1197	PROTOTYPE: $$$$;$
1198	PPCODE:	1451	PPCODE:
1199	{	1452	{
1200	STRLEN svlen;	1453	STRLEN svlen;
		1454	char *svptr = SvPVbyte (data, svlen);
1201	UV len = SvUV (length);	1455	UV len = SvUV (length);
1202	char *svptr = SvPVbyte (data, svlen);
1203		1456
1204	if (offset < 0)	1457	if (offset < 0)
1205	offset += svlen;	1458	offset += svlen;
1206		1459
1207	if (offset < 0 || offset > svlen)	1460	if (offset < 0 || offset > svlen)
…		…
1212		1465
1213	{	1466	{
1214	dREQ;	1467	dREQ;
1215		1468
1216	req->type = ix;	1469	req->type = ix;
1217	req->size = len;
1218	req->sv2 = SvREFCNT_inc (data);	1470	req->sv2 = SvREFCNT_inc (data);
1219	req->ptr2 = (char *)svptr + offset;	1471	req->ptr2 = (char *)svptr + offset;
		1472	req->size = len;
1220	req->int1 = flags;	1473	req->int1 = flags;
1221		1474
1222	REQ_SEND;	1475	REQ_SEND;
1223	}	1476	}
1224	}	1477	}
1225		1478
1226	void	1479	void
		1480	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1481	PPCODE:
		1482	{
		1483	STRLEN svlen;
		1484	char *svptr = SvPVbyte (data, svlen);
		1485	UV len = SvUV (length);
		1486
		1487	if (offset < 0)
		1488	offset += svlen;
		1489
		1490	if (offset < 0 || offset > svlen)
		1491	croak ("offset outside of scalar");
		1492
		1493	if (!SvOK (length) || len + offset > svlen)
		1494	len = svlen - offset;
		1495
		1496	{
		1497	dREQ;
		1498
		1499	req->type = EIO_MLOCK;
		1500	req->sv2 = SvREFCNT_inc (data);
		1501	req->ptr2 = (char *)svptr + offset;
		1502	req->size = len;
		1503
		1504	REQ_SEND;
		1505	}
		1506	}
		1507
		1508	void
		1509	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1510	PPCODE:
		1511	{
		1512	dREQ;
		1513
		1514	req->type = EIO_MLOCKALL;
		1515	req->int1 = flags;
		1516
		1517	REQ_SEND;
		1518	}
		1519
		1520	void
		1521	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1522	PPCODE:
		1523	{
		1524	int fd = s_fileno_croak (fh, 0);
		1525	dREQ;
		1526
		1527	req->type = EIO_CUSTOM;
		1528	req->sv1 = newSVsv (fh);
		1529	req->int1 = fd;
		1530
		1531	req->feed = fiemap;
		1532	#if HAVE_FIEMAP
		1533	/* keep our fingers crossed that the next two types are 64 bit */
		1534	req->offs = start;
		1535	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1536	req->int2 = flags;
		1537	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1538	#endif
		1539
		1540	REQ_SEND;
		1541	}
		1542
		1543	void
1227	aio_busy (double delay, SV *callback=&PL_sv_undef)	1544	aio_busy (double delay, SV *callback=&PL_sv_undef)
1228	PPCODE:	1545	PPCODE:
1229	{	1546	{
1230	dREQ;	1547	dREQ;
1231		1548
…		…
1235	REQ_SEND;	1552	REQ_SEND;
1236	}	1553	}
1237		1554
1238	void	1555	void
1239	aio_group (SV *callback=&PL_sv_undef)	1556	aio_group (SV *callback=&PL_sv_undef)
1240	PROTOTYPE: ;$
1241	PPCODE:	1557	PPCODE:
1242	{	1558	{
1243	dREQ;	1559	dREQ;
1244		1560
1245	req->type = EIO_GROUP;	1561	req->type = EIO_GROUP;
…		…
1262	REQ_SEND;	1578	REQ_SEND;
1263	}	1579	}
1264		1580
1265	int	1581	int
1266	aioreq_pri (int pri = 0)	1582	aioreq_pri (int pri = 0)
1267	PROTOTYPE: ;$
1268	CODE:	1583	CODE:
1269	RETVAL = next_pri;	1584	RETVAL = next_pri;
1270	if (items > 0)	1585	if (items > 0)
1271	{	1586	{
1272	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1284	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1599	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1285	next_pri = nice;	1600	next_pri = nice;
1286		1601
1287	void	1602	void
1288	flush ()	1603	flush ()
1289	PROTOTYPE:
1290	CODE:	1604	CODE:
1291	while (eio_nreqs ())	1605	while (eio_nreqs ())
1292	{	1606	{
1293	poll_wait ();	1607	poll_wait ();
1294	poll_cb ();	1608	poll_cb ();
1295	}	1609	}
1296		1610
1297	int	1611	int
1298	poll()	1612	poll ()
1299	PROTOTYPE:
1300	CODE:	1613	CODE:
1301	poll_wait ();	1614	poll_wait ();
1302	RETVAL = poll_cb ();	1615	RETVAL = poll_cb ();
1303	OUTPUT:	1616	OUTPUT:
1304	RETVAL	1617	RETVAL
1305		1618
1306	int	1619	int
1307	poll_fileno()	1620	poll_fileno ()
1308	PROTOTYPE:
1309	CODE:	1621	CODE:
1310	RETVAL = s_epipe_fd (&respipe);	1622	RETVAL = s_epipe_fd (&respipe);
1311	OUTPUT:	1623	OUTPUT:
1312	RETVAL	1624	RETVAL
1313		1625
1314	int	1626	int
1315	poll_cb(...)	1627	poll_cb (...)
1316	PROTOTYPE:	1628	PROTOTYPE:
1317	CODE:	1629	CODE:
1318	RETVAL = poll_cb ();	1630	RETVAL = poll_cb ();
1319	OUTPUT:	1631	OUTPUT:
1320	RETVAL	1632	RETVAL
1321		1633
1322	void	1634	void
1323	poll_wait()	1635	poll_wait ()
1324	PROTOTYPE:
1325	CODE:	1636	CODE:
1326	poll_wait ();	1637	poll_wait ();
1327		1638
1328	int	1639	int
1329	nreqs()	1640	nreqs ()
1330	PROTOTYPE:
1331	CODE:	1641	CODE:
1332	RETVAL = eio_nreqs ();	1642	RETVAL = eio_nreqs ();
1333	OUTPUT:	1643	OUTPUT:
1334	RETVAL	1644	RETVAL
1335		1645
1336	int	1646	int
1337	nready()	1647	nready ()
1338	PROTOTYPE:
1339	CODE:	1648	CODE:
1340	RETVAL = eio_nready ();	1649	RETVAL = eio_nready ();
1341	OUTPUT:	1650	OUTPUT:
1342	RETVAL	1651	RETVAL
1343		1652
1344	int	1653	int
1345	npending()	1654	npending ()
1346	PROTOTYPE:
1347	CODE:	1655	CODE:
1348	RETVAL = eio_npending ();	1656	RETVAL = eio_npending ();
1349	OUTPUT:	1657	OUTPUT:
1350	RETVAL	1658	RETVAL
1351		1659
1352	int	1660	int
1353	nthreads()	1661	nthreads ()
1354	PROTOTYPE:
1355	CODE:	1662	CODE:
1356	RETVAL = eio_nthreads ();	1663	RETVAL = eio_nthreads ();
1357	OUTPUT:	1664	OUTPUT:
1358	RETVAL	1665	RETVAL
1359		1666
1360	int	1667	int
1361	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1668	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1362	PROTOTYPE: $$$$
1363	CODE:	1669	CODE:
1364	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1365	RETVAL = posix_fadvise (fh, offset, length, advice);	1670	RETVAL = posix_fadvise (fh, offset, length, advice);
1366	#else
1367	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1368	#endif
1369	OUTPUT:	1671	OUTPUT:
1370	RETVAL	1672	RETVAL
1371		1673
1372	ssize_t	1674	IV
1373	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1675	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1374	PROTOTYPE: $$$$
1375	CODE:	1676	CODE:
1376	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1377	OUTPUT:	1678	OUTPUT:
1378	RETVAL	1679	RETVAL
1379		1680
1380	void	1681	void
1381	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1682	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1382	PROTOTYPE: $$$$$;$
1383	PPCODE:	1683	PPCODE:
1384	sv_unmagic (scalar, MMAP_MAGIC);	1684	sv_unmagic (scalar, MMAP_MAGIC);
1385	{	1685	{
1386	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1686	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1387	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1388	if (addr == (void *)-1)	1688	if (addr == (void *)-1)
1389	XSRETURN_NO;	1689	XSRETURN_NO;
1390		1690
		1691	sv_force_normal (scalar);
		1692
1391	/* we store the length in mg_obj, as namlen is I32 :/ */	1693	/* we store the length in mg_obj, as namlen is I32 :/ */
1392	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1393	->mg_obj = (SV *)length;	1695	->mg_obj = (SV *)length;
1394		1696
1395	SvUPGRADE (scalar, SVt_PV); /* nop... */	1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1698
1396	if (!(prot & PROT_WRITE))	1699	if (!(prot & PROT_WRITE))
1397	SvREADONLY_on (scalar);	1700	SvREADONLY_on (scalar);
		1701
		1702	if (SvLEN (scalar))
		1703	Safefree (SvPVX (scalar));
1398		1704
1399	SvPVX (scalar) = (char *)addr;	1705	SvPVX (scalar) = (char *)addr;
1400	SvCUR_set (scalar, length);	1706	SvCUR_set (scalar, length);
1401	SvLEN_set (scalar, 0);	1707	SvLEN_set (scalar, 0);
1402	SvPOK_only (scalar);	1708	SvPOK_only (scalar);
…		…
1404	XSRETURN_YES;	1710	XSRETURN_YES;
1405	}	1711	}
1406		1712
1407	void	1713	void
1408	munmap (SV *scalar)	1714	munmap (SV *scalar)
1409	PROTOTYPE: $
1410	CODE:	1715	CODE:
1411	sv_unmagic (scalar, MMAP_MAGIC);	1716	sv_unmagic (scalar, MMAP_MAGIC);
1412		1717
1413	int	1718	int
1414	mlockall (int flags)	1719	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1415	PROTOTYPE: $	1720	ALIAS:
		1721	mprotect = 1
1416	CODE:	1722	CODE:
		1723	{
		1724	STRLEN svlen;
		1725	void *addr = SvPVbyte (scalar, svlen);
		1726	size_t len = SvUV (length);
		1727
		1728	if (offset < 0)
		1729	offset += svlen;
		1730
		1731	if (offset < 0 || offset > svlen)
		1732	croak ("offset outside of scalar");
		1733
		1734	if (!SvOK (length) || len + offset > svlen)
		1735	len = svlen - offset;
		1736
		1737	addr = (void *)(((intptr_t)addr) + offset);
		1738	eio_page_align (&addr, &len);
		1739
		1740	switch (ix)
		1741	{
		1742	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1743	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1744	}
		1745	}
		1746	OUTPUT:
		1747	RETVAL
		1748
		1749	int
		1750	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1751	CODE:
		1752	{
		1753	STRLEN svlen;
		1754	void *addr = SvPVbyte (scalar, svlen);
		1755	size_t len = SvUV (length);
		1756
		1757	if (offset < 0)
		1758	offset += svlen;
		1759
		1760	if (offset < 0 || offset > svlen)
		1761	croak ("offset outside of scalar");
		1762
		1763	if (!SvOK (length) || len + offset > svlen)
		1764	len = svlen - offset;
		1765
		1766	addr = (void *)(((intptr_t)addr) + offset);
		1767	eio_page_align (&addr, &len);
1417	#if _POSIX_MEMLOCK	1768	#if _POSIX_MEMLOCK_RANGE
1418	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1769	RETVAL = munlock (addr, len);
1419	extern int mallopt (int, int);
1420	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1421	#endif
1422	mlockall (flags);
1423	#else	1770	#else
1424	RETVAL = -1;	1771	RETVAL = ((errno = ENOSYS), -1);
1425	errno = ENOSYS;
1426	#endif	1772	#endif
		1773	}
1427	OUTPUT:	1774	OUTPUT:
1428	RETVAL	1775	RETVAL
1429		1776
1430	int	1777	int
1431	munlockall ()	1778	munlockall ()
1432	PROTOTYPE:
1433	CODE:	1779	CODE:
1434	#if _POSIX_MEMLOCK	1780	#if _POSIX_MEMLOCK
1435	munlockall ();	1781	munlockall ();
1436	#else	1782	#else
1437	RETVAL = -1;	1783	RETVAL = -1;
…		…
1445	SvREFCNT_dec (on_next_submit);	1791	SvREFCNT_dec (on_next_submit);
1446	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1447		1793
1448	PROTOTYPES: DISABLE	1794	PROTOTYPES: DISABLE
1449		1795
		1796	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1797
		1798	BOOT:
		1799	{
		1800	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1801	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1802	}
		1803
		1804	void
		1805	DESTROY (SV *self)
		1806	CODE:
		1807	{
		1808	aio_wd wd = SvAIO_WD (self);
		1809	#if HAVE_AT
		1810	{
		1811	SV *callback = &PL_sv_undef;
		1812	dREQ; /* clobbers next_pri :/ */
		1813	next_pri = req->pri; /* restore next_pri */
		1814	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1815	req->type = EIO_WD_CLOSE;
		1816	req->wd = wd;
		1817	REQ_SEND;
		1818	}
		1819	#else
		1820	eio_wd_close_sync (wd);
		1821	#endif
		1822	}
		1823
1450	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1824	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1451		1825
1452	void	1826	void
1453	cancel (aio_req_ornot req)	1827	cancel (aio_req_ornot req)
1454	CODE:	1828	CODE:

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