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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.209 by root, Sun Apr 1 17:46:02 2012 UTC vs.
Revision 1.258 by root, Wed Jul 18 00:57:55 2018 UTC

…		…
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		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
…		…
17	#include <fcntl.h>	19	#include <fcntl.h>
18	#include <sched.h>	20	#include <sched.h>
19		21
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	22	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	23	# include <sys/mman.h>
		24	#endif
		25
		26	/* the incompetent fool that created musl keeps __linux__, refuses
		27	* to implement any linux standard apis, and also has no way to test
		28	* for his broken iplementation. don't complain to me if this fails
		29	* for you.
		30	*/
		31	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		32	# include <linux/fs.h>
		33	# ifdef FS_IOC_FIEMAP
		34	# include <linux/types.h>
		35	# include <linux/fiemap.h>
		36	# define HAVE_FIEMAP 1
		37	# endif
22	#endif	38	#endif
23		39
24	/* perl namespace pollution */	40	/* perl namespace pollution */
25	#undef VERSION	41	#undef VERSION
26		42
…		…
77		93
78	#define EIO_STRUCT_STAT Stat_t	94	#define EIO_STRUCT_STAT Stat_t
79		95
80	#endif	96	#endif
81		97
82	/* use NV for 32 bit perls as it allows larger offsets */
83	#if IVSIZE >= 8
84	# define VAL64 IV
85	# define SvVAL64 SvIV
86	# define newSVval64 newSViv
87	#else
88	# define VAL64 NV
89	# define SvVAL64 SvNV
90	# define newSVval64 newSVnv
91	#endif
92
93	/*****************************************************************************/	98	/*****************************************************************************/
94		99
95	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
96	# define expect(expr,value) __builtin_expect ((expr),(value))	101	# define expect(expr,value) __builtin_expect ((expr),(value))
97	#else	102	#else
…		…
100		105
101	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
102	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
103		108
104	/*****************************************************************************/	109	/*****************************************************************************/
		110
		111	#include "libeio/config.h"
		112
		113	#include "schmorp.h"
		114
		115	#if HAVE_EVENTFD
		116	# include <sys/eventfd.h>
		117	#endif
		118
		119	#if HAVE_TIMERFD
		120	# include <sys/timerfd.h>
		121	#endif
		122
		123	#if HAVE_RLIMITS
		124	#include <sys/time.h>
		125	#include <sys/resource.h>
		126	#endif
105		127
106	typedef SV SV8; /* byte-sv, used for argument-checking */	128	typedef SV SV8; /* byte-sv, used for argument-checking */
107	typedef int aio_rfd; /* read file desriptor */	129	typedef int aio_rfd; /* read file desriptor */
108	typedef int aio_wfd; /* write file descriptor */	130	typedef int aio_wfd; /* write file descriptor */
109		131
…		…
116	STRLEN stroffset; \	138	STRLEN stroffset; \
117	SV *self;	139	SV *self;
118		140
119	#define EIO_NO_WRAPPERS 1	141	#define EIO_NO_WRAPPERS 1
120		142
121	#include "libeio/config.h"
122	#include "libeio/eio.h"	143	#include "libeio/eio.h"
123		144
124	static int req_invoke (eio_req *req);	145	static int req_invoke (eio_req *req);
125	#define EIO_FINISH(req) req_invoke (req)	146	#define EIO_FINISH(req) req_invoke (req)
126	static void req_destroy (eio_req *grp);	147	static void req_destroy (eio_req *grp);
127	#define EIO_DESTROY(req) req_destroy (req)	148	#define EIO_DESTROY(req) req_destroy (req)
128		149
129	#include "libeio/eio.c"	150	#include "libeio/eio.c"
130		151
131	/* Linux/others */
132	#ifndef O_ASYNC
133	# define O_ASYNC 0
134	#endif
135	#ifndef O_DIRECT
136	# define O_DIRECT 0
137	#endif
138	#ifndef O_NOATIME
139	# define O_NOATIME 0
140	#endif
141
142	/* POSIX */
143	#ifndef O_CLOEXEC
144	# define O_CLOEXEC 0
145	#endif
146	#ifndef O_NOFOLLOW
147	# define O_NOFOLLOW 0
148	#endif
149	#ifndef O_NOCTTY
150	# define O_NOCTTY 0
151	#endif
152	#ifndef O_NONBLOCK
153	# define O_NONBLOCK 0
154	#endif
155	#ifndef O_EXEC
156	# define O_EXEC 0
157	#endif
158	#ifndef O_SEARCH
159	# define O_SEARCH 0
160	#endif
161	#ifndef O_DIRECTORY
162	# define O_DIRECTORY 0
163	#endif
164	#ifndef O_DSYNC
165	# define O_DSYNC 0
166	#endif
167	#ifndef O_RSYNC
168	# define O_RSYNC 0
169	#endif
170	#ifndef O_SYNC
171	# define O_SYNC 0
172	#endif
173	#ifndef O_TTY_INIT
174	# define O_TTY_INIT 0
175	#endif
176
177	#ifndef POSIX_FADV_NORMAL
178	# define POSIX_FADV_NORMAL 0
179	#endif
180	#ifndef POSIX_FADV_SEQUENTIAL
181	# define POSIX_FADV_SEQUENTIAL 0
182	#endif
183	#ifndef POSIX_FADV_RANDOM
184	# define POSIX_FADV_RANDOM 0
185	#endif
186	#ifndef POSIX_FADV_NOREUSE
187	# define POSIX_FADV_NOREUSE 0
188	#endif
189	#ifndef POSIX_FADV_WILLNEED
190	# define POSIX_FADV_WILLNEED 0
191	#endif
192	#ifndef POSIX_FADV_DONTNEED
193	# define POSIX_FADV_DONTNEED 0
194	#endif
195
196	#if !HAVE_POSIX_FADVISE	152	#if !HAVE_POSIX_FADVISE
197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	153	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198	#endif	154	#endif
199		155
200	#ifndef POSIX_MADV_NORMAL
201	# define POSIX_MADV_NORMAL 0
202	#endif
203	#ifndef POSIX_MADV_SEQUENTIAL
204	# define POSIX_MADV_SEQUENTIAL 0
205	#endif
206	#ifndef POSIX_MADV_RANDOM
207	# define POSIX_MADV_RANDOM 0
208	#endif
209	#ifndef POSIX_MADV_WILLNEED
210	# define POSIX_MADV_WILLNEED 0
211	#endif
212	#ifndef POSIX_MADV_DONTNEED
213	# define POSIX_MADV_DONTNEED 0
214	#endif
215
216	#if !HAVE_POSIX_MADVISE	156	#if !HAVE_POSIX_MADVISE
217	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	157	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
218	#endif
219
220	#ifndef PROT_NONE
221	# define PROT_NONE 0
222	#endif
223	#ifndef PROT_READ
224	# define PROT_READ 0
225	#endif
226	#ifndef PROT_WRITE
227	# define PROT_READ 0
228	#endif
229	#ifndef PROT_EXEC
230	# define PROT_EXEC 0
231	#endif
232
233	#ifndef ST_RDONLY
234	# define ST_RDONLY 0
235	#endif
236	#ifndef ST_NOSUID
237	# define ST_NOSUID 0
238	#endif
239	#ifndef ST_NODEV
240	# define ST_NODEV 0
241	#endif
242	#ifndef ST_NOEXEC
243	# define ST_NOEXEC 0
244	#endif
245	#ifndef ST_SYNCHRONOUS
246	# define ST_SYNCHRONOUS 0
247	#endif
248	#ifndef ST_MANDLOCK
249	# define ST_MANDLOCK 0
250	#endif
251	#ifndef ST_WRITE
252	# define ST_WRITE 0
253	#endif
254	#ifndef ST_APPEND
255	# define ST_APPEND 0
256	#endif
257	#ifndef ST_IMMUTABLE
258	# define ST_IMMUTABLE 0
259	#endif
260	#ifndef ST_NOATIME
261	# define ST_NOATIME 0
262	#endif
263	#ifndef ST_NODIRATIME
264	# define ST_NODIRATIME 0
265	#endif
266	#ifndef ST_RELATIME
267	# define ST_RELATIME 0
268	#endif
269
270	#ifndef S_IFIFO
271	# define S_IFIFO 0
272	#endif
273	#ifndef S_IFCHR
274	# define S_IFCHR 0
275	#endif
276	#ifndef S_IFBLK
277	# define S_IFBLK 0
278	#endif
279	#ifndef S_IFLNK
280	# define S_IFLNK 0
281	#endif
282	#ifndef S_IFREG
283	# define S_IFREG 0
284	#endif
285	#ifndef S_IFDIR
286	# define S_IFDIR 0
287	#endif
288	#ifndef S_IFWHT
289	# define S_IFWHT 0
290	#endif
291	#ifndef S_IFSOCK
292	# define S_IFSOCK 0
293	#endif	158	#endif
294		159
295	#ifndef MAP_ANONYMOUS	160	#ifndef MAP_ANONYMOUS
296	# ifdef MAP_ANON	161	# ifdef MAP_ANON
297	# define MAP_ANONYMOUS MAP_ANON	162	# define MAP_ANONYMOUS MAP_ANON
298	# else	163	# else
299	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	164	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
300	# endif	165	# endif
301	#endif	166	#endif
302	#ifndef MAP_HUGETLB	167
303	# define MAP_HUGETLB 0	168	/* defines all sorts of constants to 0 unless they are already defined */
304	#endif	169	/* also provides const_iv_ and const_niv_ macros for them */
305	#ifndef MAP_LOCKED	170	#include "def0.h"
306	# define MAP_LOCKED 0
307	#endif
308	#ifndef MAP_NORESERVE
309	# define MAP_NORESERVE 0
310	#endif
311	#ifndef MAP_POPULATE
312	# define MAP_POPULATE 0
313	#endif
314	#ifndef MAP_NONBLOCK
315	# define MAP_NONBLOCK 0
316	#endif
317		171
318	#ifndef makedev	172	#ifndef makedev
319	# define makedev(maj,min) (((maj) << 8) | (min))	173	# define makedev(maj,min) (((maj) << 8) | (min))
320	#endif	174	#endif
321	#ifndef major	175	#ifndef major
…		…
323	#endif	177	#endif
324	#ifndef minor	178	#ifndef minor
325	# define minor(dev) ((dev) & 0xff)	179	# define minor(dev) ((dev) & 0xff)
326	#endif	180	#endif
327		181
328	#ifndef PAGESIZE	182	#if PAGESIZE <= 0
329	# define PAGESIZE sysconf (_SC_PAGESIZE)	183	# define PAGESIZE sysconf (_SC_PAGESIZE)
330	#endif	184	#endif
		185
		186	/*****************************************************************************/
		187
		188	#if !_POSIX_MAPPED_FILES
		189	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		190	# define munmap(addr,length) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !_POSIX_MEMORY_PROTECTION
		194	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		195	#endif
		196
		197	#if !MREMAP_MAYMOVE
		198	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		199	#endif
		200
		201	#define FOREIGN_MAGIC PERL_MAGIC_ext
		202
		203	static int ecb_cold
		204	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		205	{
		206	int old_errno = errno;
		207	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		208	errno = old_errno;
		209
		210	mg->mg_obj = 0; /* just in case */
		211
		212	SvREADONLY_off (sv);
		213
		214	if (SvPVX (sv) != mg->mg_ptr)
		215	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		216
		217	SvCUR_set (sv, 0);
		218	SvPVX (sv) = 0;
		219	SvOK_off (sv);
		220
		221	return 0;
		222	}
		223
		224	static MGVTBL mmap_vtbl = {
		225	0, 0, 0, 0, mmap_free
		226	};
		227
		228	static int ecb_cold
		229	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		230	{
		231	free (mg->mg_ptr);
		232	mg->mg_obj = 0; /* just in case */
		233
		234	SvREADONLY_off (sv);
		235
		236	if (SvPVX (sv) != mg->mg_ptr)
		237	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		238
		239	SvCUR_set (sv, 0);
		240	SvPVX (sv) = 0;
		241	SvOK_off (sv);
		242
		243	return 0;
		244	}
		245
		246	static MGVTBL sysfree_vtbl = {
		247	0, 0, 0, 0, sysfree_free
		248	};
		249
		250	/*****************************************************************************/
		251
		252	/* helper: set scalar to foreign ptr with custom free */
		253	static void
		254	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		255	{
		256	sv_force_normal (sv);
		257
		258	/* we store the length in mg_obj, as namlen is I32 :/ */
		259	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		260	->mg_obj = (SV *)length;
		261
		262	SvUPGRADE (sv, SVt_PV); /* nop... */
		263
		264	if (SvLEN (sv))
		265	Safefree (SvPVX (sv));
		266
		267	SvPVX (sv) = (char *)addr;
		268	SvCUR_set (sv, length);
		269	SvLEN_set (sv, 0);
		270	SvPOK_only (sv);
		271	}
		272
		273	static void
		274	sv_clear_foreign (SV *sv)
		275	{
		276	/* todo: iterate over magic and only free ours, but of course */
		277	/* the perl5porters will call that (correct) behaviour buggy */
		278	sv_unmagic (sv, FOREIGN_MAGIC);
		279	}
		280
		281	/*****************************************************************************/
		282
		283	static void
		284	fiemap (eio_req *req)
		285	{
		286	req->result = -1;
		287
		288	#if HAVE_FIEMAP
		289	/* assume some c99 */
		290	struct fiemap *fiemap = 0;
		291	size_t end_offset;
		292	int count = req->int3;
		293
		294	req->flags |= EIO_FLAG_PTR1_FREE;
		295
		296	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		297	/* increase in 3.5kb steps */
		298	if (count < 0)
		299	count = 8;
		300
		301	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		302	errno = ENOMEM;
		303	if (!fiemap)
		304	return;
		305
		306	req->ptr1 = fiemap;
		307
		308	fiemap->fm_start = req->offs;
		309	fiemap->fm_length = req->size;
		310	fiemap->fm_flags = req->int2;
		311	fiemap->fm_extent_count = count;
		312
		313	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		314	return;
		315
		316	if (req->int3 >= 0 /* not autosizing */
		317	|| !fiemap->fm_mapped_extents /* no more extents */
		318	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		319	goto done;
		320
		321	/* else we have to loop -
		322	* it would be tempting (actually I tried that first) to just query the
		323	* number of extents needed, but linux often feels like not returning all
		324	* extents, without telling us it left any out. this complicates
		325	* this quite a bit.
		326	*/
		327
		328	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		329
		330	for (;;)
		331	{
		332	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		333	char scratch[3072];
		334	struct fiemap *incmap = (struct fiemap *)scratch;
		335
		336	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		337	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		338	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		339	incmap->fm_flags = fiemap->fm_flags;
		340	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		341
		342	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		343	return;
		344
		345	if (!incmap->fm_mapped_extents)
		346	goto done;
		347
		348	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		349	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		350	errno = ENOMEM;
		351	if (!fiemap)
		352	return;
		353
		354	req->ptr1 = fiemap;
		355
		356	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		357	{
		358	struct fiemap_extent *e = incmap->fm_extents + count;
		359
		360	if (e->fe_logical + e->fe_length >= end_offset)
		361	goto done;
		362
		363	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		364
		365	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		366	goto done;
		367
		368	}
		369	}
		370
		371	done:
		372	req->result = 0;
		373
		374	#else
		375	errno = ENOSYS;
		376	#endif
		377	}
		378
		379	/*****************************************************************************/
331		380
332	enum {	381	enum {
333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	382	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
334	};	383	};
335		384
…		…
374	}	423	}
375		424
376	static SV *	425	static SV *
377	newSVaio_wd (aio_wd wd)	426	newSVaio_wd (aio_wd wd)
378	{	427	{
379	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	428	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
380	}	429	}
381		430
382	static aio_req	431	static aio_req
383	SvAIO_REQ (SV *sv)	432	SvAIO_REQ (SV *sv)
384	{	433	{
…		…
403	|| SvTYPE (SvRV (sv)) != SVt_PVMG	452	|| SvTYPE (SvRV (sv)) != SVt_PVMG
404	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	453	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
405	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	454	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
406		455
407	return (aio_wd)(long)SvIVX (SvRV (sv));	456	return (aio_wd)(long)SvIVX (SvRV (sv));
		457	}
		458
		459	static SV *
		460	newmortalFH (int fd, int flags)
		461	{
		462	if (fd < 0)
		463	return &PL_sv_undef;
		464
		465	GV *gv = (GV *)sv_newmortal ();
		466	char sym[64];
		467	int symlen;
		468
		469	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		470	gv_init (gv, aio_stash, sym, symlen, 0);
		471
		472	symlen = snprintf (
		473	sym,
		474	sizeof (sym),
		475	"%s&=%d",
		476	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		477	fd
		478	);
		479
		480	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		481	? (SV *)gv : &PL_sv_undef;
408	}	482	}
409		483
410	static void	484	static void
411	aio_grp_feed (aio_req grp)	485	aio_grp_feed (aio_req grp)
412	{	486	{
…		…
540	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	614	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
541	}	615	}
542	break;	616	break;
543		617
544	case EIO_OPEN:	618	case EIO_OPEN:
545	{	619	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
546	/* convert fd to fh */
547	SV *fh = &PL_sv_undef;
548
549	if (req->result >= 0)
550	{
551	GV *gv = (GV *)sv_newmortal ();
552	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
553	char sym [64];
554	int symlen;
555
556	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
557	gv_init (gv, aio_stash, sym, symlen, 0);
558
559	symlen = snprintf (
560	sym,
561	sizeof (sym),
562	"%s&=%d",
563	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564	(int)req->result
565	);
566
567	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
568	fh = (SV *)gv;
569	}
570
571	PUSHs (fh);
572	}
573	break;	620	break;
574		621
575	case EIO_STATVFS:	622	case EIO_STATVFS:
576	case EIO_FSTATVFS:	623	case EIO_FSTATVFS:
577	{	624	{
…		…
580	#ifndef _WIN32	627	#ifndef _WIN32
581	if (req->result >= 0)	628	if (req->result >= 0)
582	{	629	{
583	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	630	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
584	HV *hv = newHV ();	631	HV *hv = newHV ();
		632	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		633	* chooses to make it a struct.
		634	*/
		635	unsigned long fsid = 0;
		636	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
585		637
586	rv = sv_2mortal (newRV_noinc ((SV *)hv));	638	rv = sv_2mortal (newRV_noinc ((SV *)hv));
587		639
588	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	640	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
589	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	641	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
591	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	643	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
592	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	644	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
593	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	645	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
594	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	646	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
595	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	647	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
596	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	648	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
597	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	649	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
598	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	650	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
599	}	651	}
600	#endif	652	#endif
601		653
…		…
652	SvSETMAGIC (req->sv2);	704	SvSETMAGIC (req->sv2);
653	PUSHs (sv_result);	705	PUSHs (sv_result);
654	}	706	}
655	break;	707	break;
656		708
		709	case EIO_SLURP:
		710	{
		711	if (req->result >= 0)
		712	{
		713	/* if length was originally not known, we steal the malloc'ed memory */
		714	if (req->flags & EIO_FLAG_PTR2_FREE)
		715	{
		716	req->flags &= ~EIO_FLAG_PTR2_FREE;
		717	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		718	}
		719	else
		720	{
		721	SvCUR_set (req->sv2, req->result);
		722	*SvEND (req->sv2) = 0;
		723	SvPOK_only (req->sv2);
		724	}
		725
		726	SvSETMAGIC (req->sv2);
		727	}
		728
		729	PUSHs (sv_result);
		730	}
		731	break;
		732
		733	case EIO_CUSTOM:
		734	if (req->feed == fiemap)
		735	{
		736	#if HAVE_FIEMAP
		737	if (!req->result)
		738	{
		739	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		740
		741	if (fiemap->fm_extent_count)
		742	{
		743	AV *av = newAV ();
		744	int i;
		745
		746	while (fiemap->fm_mapped_extents)
		747	{
		748	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		749	AV *ext_av = newAV ();
		750
		751	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		752	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		753	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		754	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		755
		756	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		757	}
		758
		759	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		760	}
		761	else
		762	{
		763	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		764	PUSHs (sv_result);
		765	}
		766	}
		767	#endif
		768	}
		769	else
		770	PUSHs (sv_result);
		771	break;
		772
657	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	773	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
658	if (req->result > 0)	774	if (req->result > 0)
659	SvIV_set (sv_result, 0);	775	SvIV_set (sv_result, 0);
660	/* FALLTHROUGH */	776	/* FALLTHROUGH */
661		777
…		…
726	{	842	{
727	while (eio_nreqs ())	843	while (eio_nreqs ())
728	{	844	{
729	int size;	845	int size;
730		846
731	X_LOCK (reslock);	847	X_LOCK (EIO_POOL->reslock);
732	size = res_queue.size;	848	size = EIO_POOL->res_queue.size;
733	X_UNLOCK (reslock);	849	X_UNLOCK (EIO_POOL->reslock);
734		850
735	if (size)	851	if (size)
736	return;	852	return;
737		853
738	etp_maybe_start_thread ();	854	etp_maybe_start_thread (EIO_POOL);
739		855
740	s_epipe_wait (&respipe);	856	s_epipe_wait (&respipe);
741	}	857	}
742	}	858	}
743		859
…		…
764	create_respipe ();	880	create_respipe ();
765		881
766	if (eio_init (want_poll, done_poll) < 0)	882	if (eio_init (want_poll, done_poll) < 0)
767	croak ("IO::AIO: unable to initialise eio library");	883	croak ("IO::AIO: unable to initialise eio library");
768	}	884	}
769
770	/*****************************************************************************/
771
772	#if !_POSIX_MAPPED_FILES
773	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
774	# define munmap(addr,length) (errno = ENOSYS, -1)
775	#endif
776
777	#if !_POSIX_MEMORY_PROTECTION
778	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
779	# define PROT_NONE 0
780	# define PROT_WRITE 0
781	# define MAP_PRIVATE 0
782	# define MAP_SHARED 0
783	# define MAP_FIXED 0
784	#endif
785
786	#define MMAP_MAGIC PERL_MAGIC_ext
787
788	static int ecb_cold
789	mmap_free (pTHX_ SV *sv, MAGIC *mg)
790	{
791	int old_errno = errno;
792	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
793	errno = old_errno;
794
795	mg->mg_obj = 0; /* just in case */
796
797	SvREADONLY_off (sv);
798
799	if (SvPVX (sv) != mg->mg_ptr)
800	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
801
802	SvCUR_set (sv, 0);
803	SvPVX (sv) = 0;
804	SvOK_off (sv);
805
806	return 0;
807	}
808
809	static MGVTBL mmap_vtbl = {
810	0, 0, 0, 0, mmap_free
811	};
812		885
813	/*****************************************************************************/	886	/*****************************************************************************/
814		887
815	static SV *	888	static SV *
816	get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
…		…
912	req_set_path1 (req, fh_or_path);	985	req_set_path1 (req, fh_or_path);
913	break;	986	break;
914	}	987	}
915	}	988	}
916		989
		990	/*****************************************************************************/
		991
		992	static void
		993	ts_set (struct timespec *ts, NV value)
		994	{
		995	ts->tv_sec = value;
		996	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		997	}
		998
		999	static NV
		1000	ts_get (const struct timespec *ts)
		1001	{
		1002	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1003	}
		1004
		1005	/*****************************************************************************/
		1006
917	XS(boot_IO__AIO) ecb_cold;	1007	XS(boot_IO__AIO) ecb_cold;
918		1008
919	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
920		1010
921	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
…		…
927	IV iv;	1017	IV iv;
928	} *civ, const_iv[] = {	1018	} *civ, const_iv[] = {
929	# define const_niv(name, value) { # name, (IV) value },	1019	# define const_niv(name, value) { # name, (IV) value },
930	# define const_iv(name) { # name, (IV) name },	1020	# define const_iv(name) { # name, (IV) name },
931	# define const_eio(name) { # name, (IV) EIO_ ## name },	1021	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1022
		1023	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1024	/* the first block can be undef if missing */
		1025	const_iv (ENOSYS)
932	const_iv (EXDEV)	1026	const_iv (EXDEV)
933	const_iv (ENOSYS)	1027	const_iv (EBADR)
		1028
		1029	/* for lseek */
		1030	const_iv (SEEK_DATA)
		1031	const_iv (SEEK_HOLE)
		1032
		1033	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1034	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1035	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1036	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1037	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1038	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1039
		1040	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1041	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1042	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1043	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1044	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1045
		1046	/* the second block will be 0 when missing */
934	const_iv (O_RDONLY)	1047	const_iv (O_RDONLY)
935	const_iv (O_WRONLY)	1048	const_iv (O_WRONLY)
936	const_iv (O_RDWR)	1049	const_iv (O_RDWR)
937	const_iv (O_CREAT)	1050	const_iv (O_CREAT)
938	const_iv (O_TRUNC)	1051	const_iv (O_TRUNC)
…		…
951	const_iv (O_SEARCH)	1064	const_iv (O_SEARCH)
952	const_iv (O_DIRECTORY)	1065	const_iv (O_DIRECTORY)
953	const_iv (O_DSYNC)	1066	const_iv (O_DSYNC)
954	const_iv (O_RSYNC)	1067	const_iv (O_RSYNC)
955	const_iv (O_SYNC)	1068	const_iv (O_SYNC)
		1069	const_iv (O_PATH)
		1070	const_iv (O_TMPFILE)
956	const_iv (O_TTY_INIT)	1071	const_iv (O_TTY_INIT)
957		1072
958	const_iv (S_IFIFO)	1073	const_iv (S_IFIFO)
959	const_iv (S_IFCHR)	1074	const_iv (S_IFCHR)
960	const_iv (S_IFBLK)	1075	const_iv (S_IFBLK)
…		…
962	const_iv (S_IFREG)	1077	const_iv (S_IFREG)
963	const_iv (S_IFDIR)	1078	const_iv (S_IFDIR)
964	const_iv (S_IFWHT)	1079	const_iv (S_IFWHT)
965	const_iv (S_IFSOCK)	1080	const_iv (S_IFSOCK)
966	const_iv (S_IFMT)	1081	const_iv (S_IFMT)
967
968	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
969	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
970	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
971	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
972	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
973	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
974
975	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
976	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
977	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
978	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
979	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
980		1082
981	const_iv (ST_RDONLY)	1083	const_iv (ST_RDONLY)
982	const_iv (ST_NOSUID)	1084	const_iv (ST_NOSUID)
983	const_iv (ST_NODEV)	1085	const_iv (ST_NODEV)
984	const_iv (ST_NOEXEC)	1086	const_iv (ST_NOEXEC)
…		…
994	const_iv (PROT_NONE)	1096	const_iv (PROT_NONE)
995	const_iv (PROT_EXEC)	1097	const_iv (PROT_EXEC)
996	const_iv (PROT_READ)	1098	const_iv (PROT_READ)
997	const_iv (PROT_WRITE)	1099	const_iv (PROT_WRITE)
998		1100
999	/*const_iv (MAP_FIXED)*/
1000	const_iv (MAP_PRIVATE)	1101	const_iv (MAP_PRIVATE)
1001	const_iv (MAP_SHARED)	1102	const_iv (MAP_SHARED)
		1103	const_iv (MAP_FIXED)
1002	const_iv (MAP_ANONYMOUS)	1104	const_iv (MAP_ANONYMOUS)
1003		1105
1004	/* linuxish */	1106	/* linuxish */
1005	const_iv (MAP_HUGETLB)
1006	const_iv (MAP_LOCKED)	1107	const_iv (MAP_LOCKED)
1007	const_iv (MAP_NORESERVE)	1108	const_iv (MAP_NORESERVE)
1008	const_iv (MAP_POPULATE)	1109	const_iv (MAP_POPULATE)
1009	const_iv (MAP_NONBLOCK)	1110	const_iv (MAP_NONBLOCK)
		1111	const_iv (MAP_GROWSDOWN)
		1112	const_iv (MAP_32BIT)
		1113	const_iv (MAP_HUGETLB)
		1114	const_iv (MAP_STACK)
1010		1115
		1116	const_iv (MREMAP_MAYMOVE)
		1117	const_iv (MREMAP_FIXED)
		1118
		1119	const_iv (F_DUPFD_CLOEXEC)
		1120
		1121	const_iv (F_OFD_GETLK)
		1122	const_iv (F_OFD_SETLK)
		1123	const_iv (F_OFD_GETLKW)
		1124
		1125	const_iv (FIFREEZE)
		1126	const_iv (FITHAW)
		1127	const_iv (FITRIM)
		1128	const_iv (FICLONE)
		1129	const_iv (FICLONERANGE)
		1130	const_iv (FIDEDUPERANGE)
		1131
		1132	const_iv (FS_IOC_GETFLAGS)
		1133	const_iv (FS_IOC_SETFLAGS)
		1134	const_iv (FS_IOC_GETVERSION)
		1135	const_iv (FS_IOC_SETVERSION)
		1136	const_iv (FS_IOC_FIEMAP)
		1137	const_iv (FS_IOC_FSGETXATTR)
		1138	const_iv (FS_IOC_FSSETXATTR)
		1139	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1140	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1141	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1142
		1143	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1144
		1145	const_iv (FS_SECRM_FL)
		1146	const_iv (FS_UNRM_FL)
		1147	const_iv (FS_COMPR_FL)
		1148	const_iv (FS_SYNC_FL)
		1149	const_iv (FS_IMMUTABLE_FL)
		1150	const_iv (FS_APPEND_FL)
		1151	const_iv (FS_NODUMP_FL)
		1152	const_iv (FS_NOATIME_FL)
		1153	const_iv (FS_DIRTY_FL)
		1154	const_iv (FS_COMPRBLK_FL)
		1155	const_iv (FS_NOCOMP_FL)
		1156	const_iv (FS_ENCRYPT_FL)
		1157	const_iv (FS_BTREE_FL)
		1158	const_iv (FS_INDEX_FL)
		1159	const_iv (FS_JOURNAL_DATA_FL)
		1160	const_iv (FS_NOTAIL_FL)
		1161	const_iv (FS_DIRSYNC_FL)
		1162	const_iv (FS_TOPDIR_FL)
		1163	const_iv (FS_FL_USER_MODIFIABLE)
		1164
		1165	const_iv (FS_XFLAG_REALTIME)
		1166	const_iv (FS_XFLAG_PREALLOC)
		1167	const_iv (FS_XFLAG_IMMUTABLE)
		1168	const_iv (FS_XFLAG_APPEND)
		1169	const_iv (FS_XFLAG_SYNC)
		1170	const_iv (FS_XFLAG_NOATIME)
		1171	const_iv (FS_XFLAG_NODUMP)
		1172	const_iv (FS_XFLAG_RTINHERIT)
		1173	const_iv (FS_XFLAG_PROJINHERIT)
		1174	const_iv (FS_XFLAG_NOSYMLINKS)
		1175	const_iv (FS_XFLAG_EXTSIZE)
		1176	const_iv (FS_XFLAG_EXTSZINHERIT)
		1177	const_iv (FS_XFLAG_NODEFRAG)
		1178	const_iv (FS_XFLAG_FILESTREAM)
		1179	const_iv (FS_XFLAG_DAX)
		1180	const_iv (FS_XFLAG_HASATTR)
		1181
		1182	const_iv (FIEMAP_FLAG_SYNC)
		1183	const_iv (FIEMAP_FLAG_XATTR)
		1184	const_iv (FIEMAP_FLAGS_COMPAT)
		1185	const_iv (FIEMAP_EXTENT_LAST)
		1186	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1187	const_iv (FIEMAP_EXTENT_DELALLOC)
		1188	const_iv (FIEMAP_EXTENT_ENCODED)
		1189	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1190	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1191	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1192	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1193	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1194	const_iv (FIEMAP_EXTENT_MERGED)
		1195	const_iv (FIEMAP_EXTENT_SHARED)
		1196
		1197	const_iv (SPLICE_F_MOVE)
		1198	const_iv (SPLICE_F_NONBLOCK)
		1199	const_iv (SPLICE_F_MORE)
		1200	const_iv (SPLICE_F_GIFT)
		1201
		1202	const_iv (EFD_CLOEXEC)
		1203	const_iv (EFD_NONBLOCK)
		1204	const_iv (EFD_SEMAPHORE)
		1205
		1206	const_iv (CLOCK_REALTIME)
		1207	const_iv (CLOCK_MONOTONIC)
		1208	const_iv (CLOCK_BOOTTIME)
		1209	const_iv (CLOCK_REALTIME_ALARM)
		1210	const_iv (CLOCK_BOOTTIME_ALARM)
		1211
		1212	const_iv (TFD_NONBLOCK)
		1213	const_iv (TFD_CLOEXEC)
		1214
		1215	const_iv (TFD_TIMER_ABSTIME)
		1216	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1217
		1218	/* these are libeio constants, and are independent of gendef0 */
1011	const_eio (SEEK_SET)	1219	const_eio (SEEK_SET)
1012	const_eio (SEEK_CUR)	1220	const_eio (SEEK_CUR)
1013	const_eio (SEEK_END)	1221	const_eio (SEEK_END)
1014		1222
1015	const_eio (MCL_FUTURE)	1223	const_eio (MCL_FUTURE)
…		…
1024	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1232	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1025	const_eio (SYNC_FILE_RANGE_WRITE)	1233	const_eio (SYNC_FILE_RANGE_WRITE)
1026	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1234	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1027		1235
1028	const_eio (FALLOC_FL_KEEP_SIZE)	1236	const_eio (FALLOC_FL_KEEP_SIZE)
		1237	const_eio (FALLOC_FL_PUNCH_HOLE)
		1238	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1239	const_eio (FALLOC_FL_ZERO_RANGE)
		1240	const_eio (FALLOC_FL_INSERT_RANGE)
		1241	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1242
		1243	const_eio (RENAME_NOREPLACE)
		1244	const_eio (RENAME_EXCHANGE)
		1245	const_eio (RENAME_WHITEOUT)
1029		1246
1030	const_eio (READDIR_DENTS)	1247	const_eio (READDIR_DENTS)
1031	const_eio (READDIR_DIRS_FIRST)	1248	const_eio (READDIR_DIRS_FIRST)
1032	const_eio (READDIR_STAT_ORDER)	1249	const_eio (READDIR_STAT_ORDER)
1033	const_eio (READDIR_FOUND_UNKNOWN)	1250	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1101	PROTOTYPE: $	1318	PROTOTYPE: $
1102	CODE:	1319	CODE:
1103	max_outstanding = maxreqs;	1320	max_outstanding = maxreqs;
1104		1321
1105	void	1322	void
1106	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1323	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1107	PPCODE:	1324	PPCODE:
1108	{	1325	{
1109	dREQ;	1326	dREQ;
1110		1327
1111	req->type = EIO_WD_OPEN;	1328	req->type = EIO_WD_OPEN;
…		…
1113		1330
1114	REQ_SEND;	1331	REQ_SEND;
1115	}	1332	}
1116		1333
1117	void	1334	void
1118	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1335	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1119	PPCODE:	1336	PPCODE:
1120	{	1337	{
1121	dREQ;	1338	dREQ;
1122		1339
1123	req->type = EIO_OPEN;	1340	req->type = EIO_OPEN;
…		…
1127		1344
1128	REQ_SEND;	1345	REQ_SEND;
1129	}	1346	}
1130		1347
1131	void	1348	void
1132	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1349	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1133	ALIAS:	1350	ALIAS:
1134	aio_fsync = EIO_FSYNC	1351	aio_fsync = EIO_FSYNC
1135	aio_fdatasync = EIO_FDATASYNC	1352	aio_fdatasync = EIO_FDATASYNC
1136	aio_syncfs = EIO_SYNCFS	1353	aio_syncfs = EIO_SYNCFS
1137	PPCODE:	1354	PPCODE:
1138	{	1355	{
1139	int fd = s_fileno_croak (fh, 0);	1356	int fd = s_fileno_croak (fh, 0);
1140	dREQ;	1357	dREQ;
1141		1358
1142	req->type = ix;	1359	req->type = ix;
1143	req->sv1 = newSVsv (fh);	1360	req->sv1 = newSVsv (fh);
1144	req->int1 = fd;	1361	req->int1 = fd;
1145		1362
1146	REQ_SEND;	1363	REQ_SEND;
1147	}	1364	}
1148		1365
1149	void	1366	void
1150	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1367	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1151	PPCODE:	1368	PPCODE:
1152	{	1369	{
1153	int fd = s_fileno_croak (fh, 0);	1370	int fd = s_fileno_croak (fh, 0);
1154	dREQ;	1371	dREQ;
1155		1372
1156	req->type = EIO_SYNC_FILE_RANGE;	1373	req->type = EIO_SYNC_FILE_RANGE;
1157	req->sv1 = newSVsv (fh);	1374	req->sv1 = newSVsv (fh);
1158	req->int1 = fd;	1375	req->int1 = fd;
…		…
1162		1379
1163	REQ_SEND;	1380	REQ_SEND;
1164	}	1381	}
1165		1382
1166	void	1383	void
1167	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1384	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1168	PPCODE:	1385	PPCODE:
1169	{	1386	{
1170	int fd = s_fileno_croak (fh, 0);	1387	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1388	dREQ;
1172		1389
1173	req->type = EIO_FALLOCATE;	1390	req->type = EIO_FALLOCATE;
1174	req->sv1 = newSVsv (fh);	1391	req->sv1 = newSVsv (fh);
1175	req->int1 = fd;	1392	req->int1 = fd;
…		…
1179		1396
1180	REQ_SEND;	1397	REQ_SEND;
1181	}	1398	}
1182		1399
1183	void	1400	void
1184	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1401	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1185	PPCODE:	1402	PPCODE:
1186	{	1403	{
1187	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1404	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1188	int fd = s_fileno_croak (fh, 0);	1405	int fd = s_fileno_croak (fh, 0);
1189	dREQ;	1406	dREQ;
1190		1407
1191	if (expect_false (close_fd < 0))	1408	if (expect_false (close_fd < 0))
1192	{	1409	{
1193	int pipefd [2];	1410	int pipefd [2];
…		…
1213		1430
1214	REQ_SEND;	1431	REQ_SEND;
1215	}	1432	}
1216		1433
1217	void	1434	void
1218	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1435	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1219	PPCODE:	1436	PPCODE:
1220	{	1437	{
1221	STRLEN svlen;
1222	int fd = s_fileno_croak (fh, 0);	1438	int fd = s_fileno_croak (fh, 0);
1223	dREQ;	1439	dREQ;
1224		1440
1225	req->type = EIO_SEEK;	1441	req->type = EIO_SEEK;
1226	req->sv1 = newSVsv (fh);	1442	req->sv1 = newSVsv (fh);
…		…
1230		1446
1231	REQ_SEND;	1447	REQ_SEND;
1232	}	1448	}
1233		1449
1234	void	1450	void
1235	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1451	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1236	ALIAS:	1452	ALIAS:
1237	aio_read = EIO_READ	1453	aio_read = EIO_READ
1238	aio_write = EIO_WRITE	1454	aio_write = EIO_WRITE
1239	PPCODE:	1455	PPCODE:
1240	{	1456	{
…		…
1256	len = svlen - dataoffset;	1472	len = svlen - dataoffset;
1257	}	1473	}
1258	else	1474	else
1259	{	1475	{
1260	/* read: check type and grow scalar as necessary */	1476	/* read: check type and grow scalar as necessary */
1261	SvUPGRADE (data, SVt_PV);	1477	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1262	svptr = SvGROW (data, len + dataoffset + 1);	1478	svptr = sv_grow (data, len + dataoffset + 1);
		1479	else if (SvCUR (data) < len + dataoffset)
		1480	croak ("length + dataoffset outside of scalar, and cannot grow");
1263	}	1481	}
1264		1482
1265	{	1483	{
1266	dREQ;	1484	dREQ;
1267		1485
…		…
1283	REQ_SEND;	1501	REQ_SEND;
1284	}	1502	}
1285	}	1503	}
1286		1504
1287	void	1505	void
		1506	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1507	ALIAS:
		1508	aio_ioctl = EIO_IOCTL
		1509	aio_fcntl = EIO_FCNTL
		1510	PPCODE:
		1511	{
		1512	int fd = s_fileno_croak (fh, 0);
		1513	char *svptr;
		1514
		1515	if (SvPOK (arg) || !SvNIOK (arg))
		1516	{
		1517	STRLEN svlen;
		1518	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1519	#ifdef IOCPARM_LEN
		1520	STRLEN need = IOCPARM_LEN (request);
		1521	#else
		1522	STRLEN need = 256;
		1523	#endif
		1524
		1525	if (svlen < need)
		1526	svptr = SvGROW (arg, need);
		1527	}
		1528	else
		1529	svptr = (char *)SvIV (arg);
		1530
		1531	{
		1532	dREQ;
		1533
		1534	req->type = ix;
		1535	req->sv1 = newSVsv (fh);
		1536	req->int1 = fd;
		1537	req->int2 = (long)request;
		1538	req->sv2 = SvREFCNT_inc (arg);
		1539	req->ptr2 = svptr;
		1540
		1541	REQ_SEND;
		1542	}
		1543	}
		1544
		1545	void
1288	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1546	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1289	ALIAS:	1547	ALIAS:
1290	aio_readlink = EIO_READLINK	1548	aio_readlink = EIO_READLINK
1291	aio_realpath = EIO_REALPATH	1549	aio_realpath = EIO_REALPATH
1292	PPCODE:	1550	PPCODE:
1293	{	1551	{
…		…
1298		1556
1299	REQ_SEND;	1557	REQ_SEND;
1300	}	1558	}
1301		1559
1302	void	1560	void
1303	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1561	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1304	PPCODE:	1562	PPCODE:
1305	{	1563	{
1306	int ifd = s_fileno_croak (in_fh , 0);	1564	int ifd = s_fileno_croak (in_fh , 0);
1307	int ofd = s_fileno_croak (out_fh, 1);	1565	int ofd = s_fileno_croak (out_fh, 1);
1308	dREQ;	1566	dREQ;
1309		1567
1310	req->type = EIO_SENDFILE;	1568	req->type = EIO_SENDFILE;
1311	req->sv1 = newSVsv (out_fh);	1569	req->sv1 = newSVsv (out_fh);
1312	req->int1 = ofd;	1570	req->int1 = ofd;
…		…
1317		1575
1318	REQ_SEND;	1576	REQ_SEND;
1319	}	1577	}
1320		1578
1321	void	1579	void
1322	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1580	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1323	PPCODE:	1581	PPCODE:
1324	{	1582	{
1325	int fd = s_fileno_croak (fh, 0);	1583	int fd = s_fileno_croak (fh, 0);
1326	dREQ;	1584	dREQ;
1327		1585
1328	req->type = EIO_READAHEAD;	1586	req->type = EIO_READAHEAD;
1329	req->sv1 = newSVsv (fh);	1587	req->sv1 = newSVsv (fh);
1330	req->int1 = fd;	1588	req->int1 = fd;
…		…
1333		1591
1334	REQ_SEND;	1592	REQ_SEND;
1335	}	1593	}
1336		1594
1337	void	1595	void
1338	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1596	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1339	ALIAS:	1597	ALIAS:
1340	aio_stat = EIO_STAT	1598	aio_stat = EIO_STAT
1341	aio_lstat = EIO_LSTAT	1599	aio_lstat = EIO_LSTAT
1342	aio_statvfs = EIO_STATVFS	1600	aio_statvfs = EIO_STATVFS
1343	PPCODE:	1601	PPCODE:
…		…
1352	UV	1610	UV
1353	major (UV dev)	1611	major (UV dev)
1354	ALIAS:	1612	ALIAS:
1355	minor = 1	1613	minor = 1
1356	CODE:	1614	CODE:
1357	RETVAL = ix ? major (dev) : minor (dev);	1615	RETVAL = ix ? minor (dev) : major (dev);
1358	OUTPUT:	1616	OUTPUT:
1359	RETVAL	1617	RETVAL
1360		1618
1361	UV	1619	UV
1362	makedev (UV maj, UV min)	1620	makedev (UV maj, UV min)
…		…
1364	RETVAL = makedev (maj, min);	1622	RETVAL = makedev (maj, min);
1365	OUTPUT:	1623	OUTPUT:
1366	RETVAL	1624	RETVAL
1367		1625
1368	void	1626	void
1369	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1627	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1370	PPCODE:	1628	PPCODE:
1371	{	1629	{
1372	dREQ;	1630	dREQ;
1373		1631
1374	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1632	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1377		1635
1378	REQ_SEND;	1636	REQ_SEND;
1379	}	1637	}
1380		1638
1381	void	1639	void
1382	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1640	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1383	PPCODE:	1641	PPCODE:
1384	{	1642	{
1385	dREQ;	1643	dREQ;
1386		1644
1387	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1389		1647
1390	REQ_SEND;	1648	REQ_SEND;
1391	}	1649	}
1392		1650
1393	void	1651	void
1394	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1652	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1395	PPCODE:	1653	PPCODE:
1396	{	1654	{
1397	dREQ;	1655	dREQ;
1398		1656
1399	req->int2 = mode;	1657	req->int2 = mode;
…		…
1401		1659
1402	REQ_SEND;	1660	REQ_SEND;
1403	}	1661	}
1404		1662
1405	void	1663	void
1406	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1664	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1407	PPCODE:	1665	PPCODE:
1408	{	1666	{
1409	dREQ;	1667	dREQ;
1410		1668
1411	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1669	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1414		1672
1415	REQ_SEND;	1673	REQ_SEND;
1416	}	1674	}
1417		1675
1418	void	1676	void
1419	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1677	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1420	PPCODE:	1678	PPCODE:
1421	{	1679	{
1422	dREQ;	1680	dREQ;
1423		1681
1424	req->type = EIO_READDIR;	1682	req->type = EIO_READDIR;
…		…
1431		1689
1432	REQ_SEND;	1690	REQ_SEND;
1433	}	1691	}
1434		1692
1435	void	1693	void
1436	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1694	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1437	PPCODE:	1695	PPCODE:
1438	{	1696	{
1439	dREQ;	1697	dREQ;
1440		1698
1441	req->type = EIO_MKDIR;	1699	req->type = EIO_MKDIR;
…		…
1444		1702
1445	REQ_SEND;	1703	REQ_SEND;
1446	}	1704	}
1447		1705
1448	void	1706	void
1449	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1707	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1450	ALIAS:	1708	ALIAS:
1451	aio_unlink = EIO_UNLINK	1709	aio_unlink = EIO_UNLINK
1452	aio_rmdir = EIO_RMDIR	1710	aio_rmdir = EIO_RMDIR
1453	aio_readdir = EIO_READDIR	1711	aio_readdir = EIO_READDIR
1454	PPCODE:	1712	PPCODE:
…		…
1460		1718
1461	REQ_SEND;	1719	REQ_SEND;
1462	}	1720	}
1463		1721
1464	void	1722	void
1465	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1723	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1466	ALIAS:	1724	ALIAS:
1467	aio_link = EIO_LINK	1725	aio_link = EIO_LINK
1468	aio_symlink = EIO_SYMLINK	1726	aio_symlink = EIO_SYMLINK
1469	aio_rename = EIO_RENAME	1727	aio_rename = EIO_RENAME
1470	PPCODE:	1728	PPCODE:
…		…
1479		1737
1480	REQ_SEND;	1738	REQ_SEND;
1481	}	1739	}
1482		1740
1483	void	1741	void
		1742	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1743	PPCODE:
		1744	{
		1745	eio_wd wd2 = 0;
		1746	dREQ;
		1747
		1748	req->type = EIO_RENAME;
		1749	req_set_path1 (req, oldpath);
		1750	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1751	req->int2 = flags;
		1752	req->int3 = (long)wd2;
		1753
		1754	REQ_SEND;
		1755	}
		1756
		1757	void
1484	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1758	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1485	PPCODE:	1759	PPCODE:
1486	{	1760	{
1487	dREQ;	1761	dREQ;
1488		1762
1489	req->type = EIO_MKNOD;	1763	req->type = EIO_MKNOD;
…		…
1493		1767
1494	REQ_SEND;	1768	REQ_SEND;
1495	}	1769	}
1496		1770
1497	void	1771	void
1498	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1772	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1499	ALIAS:	1773	ALIAS:
1500	aio_mtouch = EIO_MTOUCH	1774	aio_mtouch = EIO_MTOUCH
1501	aio_msync = EIO_MSYNC	1775	aio_msync = EIO_MSYNC
1502	PPCODE:	1776	PPCODE:
1503	{	1777	{
1504	STRLEN svlen;	1778	STRLEN svlen;
1505	char *svptr = SvPVbyte (data, svlen);	1779	char *svptr = SvPVbyte (data, svlen);
1506	UV len = SvUV (length);	1780	UV len = SvUV (length);
		1781
		1782	if (flags < 0)
		1783	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1507		1784
1508	if (offset < 0)	1785	if (offset < 0)
1509	offset += svlen;	1786	offset += svlen;
1510		1787
1511	if (offset < 0 || offset > svlen)	1788	if (offset < 0 || offset > svlen)
…		…
1526	REQ_SEND;	1803	REQ_SEND;
1527	}	1804	}
1528	}	1805	}
1529		1806
1530	void	1807	void
1531	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1808	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1532	PPCODE:	1809	PPCODE:
1533	{	1810	{
1534	STRLEN svlen;	1811	STRLEN svlen;
1535	char *svptr = SvPVbyte (data, svlen);	1812	char *svptr = SvPVbyte (data, svlen);
1536	UV len = SvUV (length);	1813	UV len = SvUV (length);
…		…
1555	REQ_SEND;	1832	REQ_SEND;
1556	}	1833	}
1557	}	1834	}
1558		1835
1559	void	1836	void
1560	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1837	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1561	PPCODE:	1838	PPCODE:
1562	{	1839	{
1563	dREQ;	1840	dREQ;
1564		1841
1565	req->type = EIO_MLOCKALL;	1842	req->type = EIO_MLOCKALL;
…		…
1567		1844
1568	REQ_SEND;	1845	REQ_SEND;
1569	}	1846	}
1570		1847
1571	void	1848	void
		1849	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1850	PPCODE:
		1851	{
		1852	int fd = s_fileno_croak (fh, 0);
		1853	dREQ;
		1854
		1855	req->type = EIO_CUSTOM;
		1856	req->sv1 = newSVsv (fh);
		1857	req->int1 = fd;
		1858
		1859	req->feed = fiemap;
		1860	#if HAVE_FIEMAP
		1861	/* keep our fingers crossed that the next two types are 64 bit */
		1862	req->offs = start;
		1863	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1864	req->int2 = flags;
		1865	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1866	#endif
		1867
		1868	REQ_SEND;
		1869	}
		1870
		1871	void
		1872	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1873	PPCODE:
		1874	{
		1875	char *svptr = 0;
		1876
		1877	sv_clear_foreign (data);
		1878
		1879	if (length) /* known length, directly read into scalar */
		1880	{
		1881	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1882	svptr = sv_grow (data, length + 1);
		1883	else if (SvCUR (data) < length)
		1884	croak ("length outside of scalar, and cannot grow");
		1885	else
		1886	svptr = SvPVbyte_nolen (data);
		1887	}
		1888
		1889	{
		1890	dREQ;
		1891
		1892	req->type = EIO_SLURP;
		1893	req_set_path1 (req, pathname);
		1894	req->offs = offset;
		1895	req->size = length;
		1896	req->sv2 = SvREFCNT_inc (data);
		1897	req->ptr2 = svptr;
		1898
		1899	if (!SvREADONLY (data))
		1900	{
		1901	SvREADONLY_on (data);
		1902	req->flags |= FLAG_SV2_RO_OFF;
		1903	}
		1904
		1905	REQ_SEND;
		1906	}
		1907	}
		1908
		1909	void
1572	aio_busy (double delay, SV *callback=&PL_sv_undef)	1910	aio_busy (double delay, SV *callback = &PL_sv_undef)
1573	PPCODE:	1911	PPCODE:
1574	{	1912	{
1575	dREQ;	1913	dREQ;
1576		1914
1577	req->type = EIO_BUSY;	1915	req->type = EIO_BUSY;
…		…
1579		1917
1580	REQ_SEND;	1918	REQ_SEND;
1581	}	1919	}
1582		1920
1583	void	1921	void
1584	aio_group (SV *callback=&PL_sv_undef)	1922	aio_group (SV *callback = &PL_sv_undef)
1585	PPCODE:	1923	PPCODE:
1586	{	1924	{
1587	dREQ;	1925	dREQ;
1588		1926
1589	req->type = EIO_GROUP;	1927	req->type = EIO_GROUP;
1590		1928
		1929	PUTBACK;
1591	req_submit (req);	1930	req_submit (req);
		1931	SPAGAIN;
		1932
1592	XPUSHs (req_sv (req, aio_grp_stash));	1933	XPUSHs (req_sv (req, aio_grp_stash));
1593	}	1934	}
1594		1935
1595	void	1936	void
1596	aio_nop (SV *callback=&PL_sv_undef)	1937	aio_nop (SV *callback = &PL_sv_undef)
1597	ALIAS:	1938	ALIAS:
1598	aio_nop = EIO_NOP	1939	aio_nop = EIO_NOP
1599	aio_sync = EIO_SYNC	1940	aio_sync = EIO_SYNC
1600	PPCODE:	1941	PPCODE:
1601	{	1942	{
…		…
1605		1946
1606	REQ_SEND;	1947	REQ_SEND;
1607	}	1948	}
1608		1949
1609	int	1950	int
1610	aioreq_pri (int pri = 0)	1951	aioreq_pri (int pri = NO_INIT)
1611	CODE:	1952	CODE:
1612	RETVAL = next_pri;	1953	RETVAL = next_pri;
1613	if (items > 0)	1954	if (items > 0)
1614	{	1955	{
1615	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1956	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1705	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2046	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1706	OUTPUT:	2047	OUTPUT:
1707	RETVAL	2048	RETVAL
1708		2049
1709	void	2050	void
1710	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2051	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1711	PPCODE:	2052	PPCODE:
1712	sv_unmagic (scalar, MMAP_MAGIC);	2053	sv_clear_foreign (scalar);
1713	{	2054	{
1714	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2055	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1715	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2056	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1716	if (addr == (void *)-1)	2057	if (addr == (void *)-1)
1717	XSRETURN_NO;	2058	XSRETURN_NO;
1718		2059
1719	sv_force_normal (scalar);	2060	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1720
1721	/* we store the length in mg_obj, as namlen is I32 :/ */
1722	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1723	->mg_obj = (SV *)length;
1724
1725	SvUPGRADE (scalar, SVt_PV); /* nop... */
1726		2061
1727	if (!(prot & PROT_WRITE))	2062	if (!(prot & PROT_WRITE))
1728	SvREADONLY_on (scalar);	2063	SvREADONLY_on (scalar);
1729		2064
1730	if (SvLEN (scalar))
1731	Safefree (SvPVX (scalar));
1732
1733	SvPVX (scalar) = (char *)addr;
1734	SvCUR_set (scalar, length);
1735	SvLEN_set (scalar, 0);
1736	SvPOK_only (scalar);
1737
1738	XSRETURN_YES;	2065	XSRETURN_YES;
1739	}	2066	}
1740		2067
1741	void	2068	void
1742	munmap (SV *scalar)	2069	munmap (SV *scalar)
1743	CODE:	2070	CODE:
1744	sv_unmagic (scalar, MMAP_MAGIC);	2071	sv_clear_foreign (scalar);
		2072
		2073	SV *
		2074	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2075	CODE:
		2076	{
		2077	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2078	void *new;
		2079
		2080	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2081	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2082
		2083	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2084
		2085	RETVAL = &PL_sv_no;
		2086
		2087	if (new != (void *)-1)
		2088	{
		2089	RETVAL = new == (void *)mg->mg_ptr
		2090	? newSVpvn ("0 but true", 10)
		2091	: &PL_sv_yes;
		2092
		2093	mg->mg_ptr = (char *)new;
		2094	mg->mg_obj = (SV *)new_length;
		2095
		2096	SvPVX (scalar) = mg->mg_ptr;
		2097	SvCUR_set (scalar, new_length);
		2098	}
		2099	}
		2100	OUTPUT:
		2101	RETVAL
1745		2102
1746	int	2103	int
1747	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2104	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1748	ALIAS:	2105	ALIAS:
1749	mprotect = 1	2106	mprotect = 1
1750	CODE:	2107	CODE:
1751	{	2108	{
1752	STRLEN svlen;	2109	STRLEN svlen;
1753	void *addr = SvPVbyte (scalar, svlen);	2110	void *addr = SvPVbyte (scalar, svlen);
1754	size_t len = SvUV (length);	2111	STRLEN len = SvUV (length);
1755		2112
1756	if (offset < 0)	2113	if (offset < 0)
1757	offset += svlen;	2114	offset += svlen;
1758		2115
1759	if (offset < 0 || offset > svlen)	2116	if (offset < 0 || offset > svlen)
…		…
1773	}	2130	}
1774	OUTPUT:	2131	OUTPUT:
1775	RETVAL	2132	RETVAL
1776		2133
1777	int	2134	int
1778	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2135	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1779	CODE:	2136	CODE:
1780	{	2137	{
1781	STRLEN svlen;	2138	STRLEN svlen;
1782	void *addr = SvPVbyte (scalar, svlen);	2139	void *addr = SvPVbyte (scalar, svlen);
1783	size_t len = SvUV (length);	2140	size_t len = SvUV (length);
1784		2141
1785	if (offset < 0)	2142	if (offset < 0)
1786	offset += svlen;	2143	offset += svlen;
1787		2144
…		…
1794	addr = (void *)(((intptr_t)addr) + offset);	2151	addr = (void *)(((intptr_t)addr) + offset);
1795	eio_page_align (&addr, &len);	2152	eio_page_align (&addr, &len);
1796	#if _POSIX_MEMLOCK_RANGE	2153	#if _POSIX_MEMLOCK_RANGE
1797	RETVAL = munlock (addr, len);	2154	RETVAL = munlock (addr, len);
1798	#else	2155	#else
1799	RETVAL = ((errno = ENOSYS), -1);	2156	RETVAL = EIO_ENOSYS ();
1800	#endif	2157	#endif
1801	}	2158	}
1802	OUTPUT:	2159	OUTPUT:
1803	RETVAL	2160	RETVAL
1804		2161
…		…
1806	munlockall ()	2163	munlockall ()
1807	CODE:	2164	CODE:
1808	#if _POSIX_MEMLOCK	2165	#if _POSIX_MEMLOCK
1809	munlockall ();	2166	munlockall ();
1810	#else	2167	#else
1811	RETVAL = -1;	2168	RETVAL = EIO_ENOSYS ();
1812	errno = ENOSYS;
1813	#endif	2169	#endif
1814	OUTPUT:	2170	OUTPUT:
1815	RETVAL	2171	RETVAL
		2172
		2173	int
		2174	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2175	CODE:
		2176	{
		2177	#if HAVE_LINUX_SPLICE
		2178	loff_t off_in_, off_out_;
		2179	RETVAL = splice (
		2180	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2181	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2182	length, flags
		2183	);
		2184	#else
		2185	RETVAL = EIO_ENOSYS ();
		2186	#endif
		2187	}
		2188	OUTPUT:
		2189	RETVAL
		2190
		2191	int
		2192	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2193	CODE:
		2194	#if HAVE_LINUX_SPLICE
		2195	RETVAL = tee (rfh, wfh, length, flags);
		2196	#else
		2197	RETVAL = EIO_ENOSYS ();
		2198	#endif
		2199	OUTPUT:
		2200	RETVAL
		2201
		2202	int
		2203	pipesize (aio_rfd rfh, int new_size = -1)
		2204	PROTOTYPE: $;$
		2205	CODE:
		2206	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2207	if (new_size >= 0)
		2208	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2209	else
		2210	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2211	#else
		2212	errno = ENOSYS;
		2213	RETVAL = -1;
		2214	#endif
		2215	OUTPUT:
		2216	RETVAL
		2217
		2218	void
		2219	pipe2 (int flags = 0)
		2220	PROTOTYPE: ;$
		2221	PPCODE:
		2222	{
		2223	int fd[2];
		2224	int res;
		2225
		2226	if (flags)
		2227	#if HAVE_PIPE2
		2228	res = pipe2 (fd, flags);
		2229	#else
		2230	res = (errno = ENOSYS, -1);
		2231	#endif
		2232	else
		2233	res = pipe (fd);
		2234
		2235	if (!res)
		2236	{
		2237	EXTEND (SP, 2);
		2238	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2239	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2240	}
		2241	}
		2242
		2243	void
		2244	eventfd (unsigned int initval = 0, int flags = 0)
		2245	PPCODE:
		2246	{
		2247	int fd;
		2248	#if HAVE_EVENTFD
		2249	fd = eventfd (initval, flags);
		2250	#else
		2251	fd = (errno = ENOSYS, -1);
		2252	#endif
		2253
		2254	XPUSHs (newmortalFH (fd, O_RDWR));
		2255	}
		2256
		2257	void
		2258	timerfd_create (int clockid, int flags = 0)
		2259	PPCODE:
		2260	{
		2261	int fd;
		2262	#if HAVE_TIMERFD
		2263	fd = timerfd_create (clockid, flags);
		2264	#else
		2265	fd = (errno = ENOSYS, -1);
		2266	#endif
		2267
		2268	XPUSHs (newmortalFH (fd, O_RDWR));
		2269	}
		2270
		2271	void
		2272	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2273	PPCODE:
		2274	{
		2275	int fd = s_fileno_croak (fh, 0);
		2276	#if HAVE_TIMERFD
		2277	int res;
		2278	struct itimerspec its, ots;
		2279
		2280	ts_set (&its.it_interval, interval);
		2281	ts_set (&its.it_value , value);
		2282	res = timerfd_settime (fd, flags, &its, &ots);
		2283
		2284	if (!res)
		2285	{
		2286	EXTEND (SP, 2);
		2287	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2288	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2289	}
		2290	#else
		2291	errno = ENOSYS;
		2292	#endif
		2293	}
		2294
		2295	void
		2296	timerfd_gettime (SV *fh)
		2297	PPCODE:
		2298	{
		2299	int fd = s_fileno_croak (fh, 0);
		2300	#if HAVE_TIMERFD
		2301	int res;
		2302	struct itimerspec ots;
		2303	res = timerfd_gettime (fd, &ots);
		2304
		2305	if (!res)
		2306	{
		2307	EXTEND (SP, 2);
		2308	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2309	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2310	}
		2311	#else
		2312	errno = ENOSYS;
		2313	#endif
		2314	}
		2315
		2316	UV
		2317	get_fdlimit ()
		2318	CODE:
		2319	#if HAVE_RLIMITS
		2320	struct rlimit rl;
		2321	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2322	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2323	#endif
		2324	XSRETURN_UNDEF;
		2325	OUTPUT:
		2326	RETVAL
		2327
		2328	void
		2329	min_fdlimit (UV limit = 0x7fffffffU)
		2330	CODE:
		2331	{
		2332	#if HAVE_RLIMITS
		2333	struct rlimit rl;
		2334	rlim_t orig_rlim_max;
		2335	UV bit;
		2336
		2337	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2338	goto fail;
		2339
		2340	if (rl.rlim_cur == RLIM_INFINITY)
		2341	XSRETURN_YES;
		2342
		2343	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2344
		2345	if (rl.rlim_cur < limit)
		2346	{
		2347	rl.rlim_cur = limit;
		2348
		2349	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2350	rl.rlim_max = rl.rlim_cur;
		2351	}
		2352
		2353	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2354	XSRETURN_YES;
		2355
		2356	if (errno == EPERM)
		2357	{
		2358	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2359	/* our limit overflows a system-wide limit */
		2360	/* try an adaptive algorithm, but do not lower the hardlimit */
		2361	rl.rlim_max = 0;
		2362	for (bit = 0x40000000U; bit; bit >>= 1)
		2363	{
		2364	rl.rlim_max |= bit;
		2365	rl.rlim_cur = rl.rlim_max;
		2366
		2367	/* nevr decrease the hard limit */
		2368	if (rl.rlim_max < orig_rlim_max)
		2369	break;
		2370
		2371	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2372	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2373	}
		2374
		2375	/* now, raise the soft limit to the max permitted */
		2376	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2377	{
		2378	rl.rlim_cur = rl.rlim_max;
		2379	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2380	errno = EPERM;
		2381	}
		2382	}
		2383	#endif
		2384	fail:
		2385	XSRETURN_UNDEF;
		2386	}
1816		2387
1817	void _on_next_submit (SV *cb)	2388	void _on_next_submit (SV *cb)
1818	CODE:	2389	CODE:
1819	SvREFCNT_dec (on_next_submit);	2390	SvREFCNT_dec (on_next_submit);
1820	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2391	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1855	cancel (aio_req_ornot req)	2426	cancel (aio_req_ornot req)
1856	CODE:	2427	CODE:
1857	eio_cancel (req);	2428	eio_cancel (req);
1858		2429
1859	void	2430	void
1860	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2431	cb (aio_req_ornot req, SV *callback = NO_INIT)
1861	PPCODE:	2432	PPCODE:
1862	{	2433	{
1863	if (GIMME_V != G_VOID)	2434	if (GIMME_V != G_VOID)
1864	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2435	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1865		2436
1866	if (items > 1)	2437	if (items > 1)
1867	{	2438	{
1868	SV *cb_cv =get_cb (callback);	2439	SV *cb_cv = get_cb (callback);
1869		2440
1870	SvREFCNT_dec (req->callback);	2441	SvREFCNT_dec (req->callback);
1871	req->callback = SvREFCNT_inc (cb_cv);	2442	req->callback = SvREFCNT_inc (cb_cv);
1872	}	2443	}
1873	}	2444	}
…		…
1930	limit (aio_req grp, int limit)	2501	limit (aio_req grp, int limit)
1931	CODE:	2502	CODE:
1932	eio_grp_limit (grp, limit);	2503	eio_grp_limit (grp, limit);
1933		2504
1934	void	2505	void
1935	feed (aio_req grp, SV *callback=&PL_sv_undef)	2506	feed (aio_req grp, SV *callback = &PL_sv_undef)
1936	CODE:	2507	CODE:
1937	{	2508	{
1938	SvREFCNT_dec (grp->sv2);	2509	SvREFCNT_dec (grp->sv2);
1939	grp->sv2 = newSVsv (callback);	2510	grp->sv2 = newSVsv (callback);
1940	grp->feed = aio_grp_feed;	2511	grp->feed = aio_grp_feed;

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