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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 1.254 by root, Tue Feb 20 05:23:47 2018 UTC

…		…
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
22	#endif	36	#endif
23		37
24	/* perl namespace pollution */	38	/* perl namespace pollution */
25	#undef VERSION	39	#undef VERSION
26		40
…		…
77		91
78	#define EIO_STRUCT_STAT Stat_t	92	#define EIO_STRUCT_STAT Stat_t
79		93
80	#endif	94	#endif
81		95
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	/*****************************************************************************/	96	/*****************************************************************************/
94		97
95	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
96	# define expect(expr,value) __builtin_expect ((expr),(value))	99	# define expect(expr,value) __builtin_expect ((expr),(value))
97	#else	100	#else
…		…
100		103
101	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
102	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
103		106
104	/*****************************************************************************/	107	/*****************************************************************************/
		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_TIMERFD
		116	# include <sys/timerfd.h>
		117	#endif
		118
		119	#if HAVE_RLIMITS
		120	#include <sys/time.h>
		121	#include <sys/resource.h>
		122	#endif
105		123
106	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
107	typedef int aio_rfd; /* read file desriptor */	125	typedef int aio_rfd; /* read file desriptor */
108	typedef int aio_wfd; /* write file descriptor */	126	typedef int aio_wfd; /* write file descriptor */
109		127
…		…
116	STRLEN stroffset; \	134	STRLEN stroffset; \
117	SV *self;	135	SV *self;
118		136
119	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
120		138
121	#include "libeio/config.h"
122	#include "libeio/eio.h"	139	#include "libeio/eio.h"
123		140
124	static int req_invoke (eio_req *req);	141	static int req_invoke (eio_req *req);
125	#define EIO_FINISH(req) req_invoke (req)	142	#define EIO_FINISH(req) req_invoke (req)
126	static void req_destroy (eio_req *grp);	143	static void req_destroy (eio_req *grp);
127	#define EIO_DESTROY(req) req_destroy (req)	144	#define EIO_DESTROY(req) req_destroy (req)
128		145
129	#include "libeio/eio.c"	146	#include "libeio/eio.c"
130		147
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	148	#if !HAVE_POSIX_FADVISE
197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	149	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198	#endif	150	#endif
199		151
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	152	#if !HAVE_POSIX_MADVISE
217	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	153	# 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	154	#endif
294		155
295	#ifndef MAP_ANONYMOUS	156	#ifndef MAP_ANONYMOUS
296	# ifdef MAP_ANON	157	# ifdef MAP_ANON
297	# define MAP_ANONYMOUS MAP_ANON	158	# define MAP_ANONYMOUS MAP_ANON
298	# else	159	# else
299	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	160	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
300	# endif	161	# endif
301	#endif	162	#endif
302	#ifndef MAP_HUGETLB	163
303	# define MAP_HUGETLB 0	164	/* defines all sorts of constants to 0 unless they are already defined */
304	#endif	165	/* also provides const_iv_ and const_niv_ macros for them */
305	#ifndef MAP_LOCKED	166	#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		167
318	#ifndef makedev	168	#ifndef makedev
319	# define makedev(maj,min) (((maj) << 8) | (min))	169	# define makedev(maj,min) (((maj) << 8) | (min))
320	#endif	170	#endif
321	#ifndef major	171	#ifndef major
…		…
323	#endif	173	#endif
324	#ifndef minor	174	#ifndef minor
325	# define minor(dev) ((dev) & 0xff)	175	# define minor(dev) ((dev) & 0xff)
326	#endif	176	#endif
327		177
328	#ifndef PAGESIZE	178	#if PAGESIZE <= 0
329	# define PAGESIZE sysconf (_SC_PAGESIZE)	179	# define PAGESIZE sysconf (_SC_PAGESIZE)
330	#endif	180	#endif
		181
		182	/*****************************************************************************/
		183
		184	#if !_POSIX_MAPPED_FILES
		185	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#define FOREIGN_MAGIC PERL_MAGIC_ext
		194
		195	static int ecb_cold
		196	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		197	{
		198	int old_errno = errno;
		199	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		200	errno = old_errno;
		201
		202	mg->mg_obj = 0; /* just in case */
		203
		204	SvREADONLY_off (sv);
		205
		206	if (SvPVX (sv) != mg->mg_ptr)
		207	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		208
		209	SvCUR_set (sv, 0);
		210	SvPVX (sv) = 0;
		211	SvOK_off (sv);
		212
		213	return 0;
		214	}
		215
		216	static MGVTBL mmap_vtbl = {
		217	0, 0, 0, 0, mmap_free
		218	};
		219
		220	static int ecb_cold
		221	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	free (mg->mg_ptr);
		224	mg->mg_obj = 0; /* just in case */
		225
		226	SvREADONLY_off (sv);
		227
		228	if (SvPVX (sv) != mg->mg_ptr)
		229	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		230
		231	SvCUR_set (sv, 0);
		232	SvPVX (sv) = 0;
		233	SvOK_off (sv);
		234
		235	return 0;
		236	}
		237
		238	static MGVTBL sysfree_vtbl = {
		239	0, 0, 0, 0, sysfree_free
		240	};
		241
		242	/*****************************************************************************/
		243
		244	/* helper: set scalar to foreign ptr with custom free */
		245	static void
		246	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		247	{
		248	sv_force_normal (sv);
		249
		250	/* we store the length in mg_obj, as namlen is I32 :/ */
		251	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		252	->mg_obj = (SV *)length;
		253
		254	SvUPGRADE (sv, SVt_PV); /* nop... */
		255
		256	if (SvLEN (sv))
		257	Safefree (SvPVX (sv));
		258
		259	SvPVX (sv) = (char *)addr;
		260	SvCUR_set (sv, length);
		261	SvLEN_set (sv, 0);
		262	SvPOK_only (sv);
		263	}
		264
		265	static void
		266	sv_clear_foreign (SV *sv)
		267	{
		268	/* todo: iterate over magic and only free ours, but of course */
		269	/* the perl5porters will call that (correct) behaviour buggy */
		270	sv_unmagic (sv, FOREIGN_MAGIC);
		271	}
		272
		273	/*****************************************************************************/
		274
		275	static void
		276	fiemap (eio_req *req)
		277	{
		278	req->result = -1;
		279
		280	#if HAVE_FIEMAP
		281	/* assume some c99 */
		282	struct fiemap *fiemap = 0;
		283	size_t end_offset;
		284	int count = req->int3;
		285
		286	req->flags |= EIO_FLAG_PTR1_FREE;
		287
		288	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		289	/* increase in 3.5kb steps */
		290	if (count < 0)
		291	count = 8;
		292
		293	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		294	errno = ENOMEM;
		295	if (!fiemap)
		296	return;
		297
		298	req->ptr1 = fiemap;
		299
		300	fiemap->fm_start = req->offs;
		301	fiemap->fm_length = req->size;
		302	fiemap->fm_flags = req->int2;
		303	fiemap->fm_extent_count = count;
		304
		305	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		306	return;
		307
		308	if (req->int3 >= 0 /* not autosizing */
		309	|| !fiemap->fm_mapped_extents /* no more extents */
		310	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		311	goto done;
		312
		313	/* else we have to loop -
		314	* it would be tempting (actually I tried that first) to just query the
		315	* number of extents needed, but linux often feels like not returning all
		316	* extents, without telling us it left any out. this complicates
		317	* this quite a bit.
		318	*/
		319
		320	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		321
		322	for (;;)
		323	{
		324	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		325	char scratch[3072];
		326	struct fiemap *incmap = (struct fiemap *)scratch;
		327
		328	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		329	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		330	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		331	incmap->fm_flags = fiemap->fm_flags;
		332	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		333
		334	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		335	return;
		336
		337	if (!incmap->fm_mapped_extents)
		338	goto done;
		339
		340	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		341	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		342	errno = ENOMEM;
		343	if (!fiemap)
		344	return;
		345
		346	req->ptr1 = fiemap;
		347
		348	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		349	{
		350	struct fiemap_extent *e = incmap->fm_extents + count;
		351
		352	if (e->fe_logical + e->fe_length >= end_offset)
		353	goto done;
		354
		355	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		356
		357	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		358	goto done;
		359
		360	}
		361	}
		362
		363	done:
		364	req->result = 0;
		365
		366	#else
		367	errno = ENOSYS;
		368	#endif
		369	}
		370
		371	/*****************************************************************************/
331		372
332	enum {	373	enum {
333	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	374	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
334	};	375	};
335		376
…		…
374	}	415	}
375		416
376	static SV *	417	static SV *
377	newSVaio_wd (aio_wd wd)	418	newSVaio_wd (aio_wd wd)
378	{	419	{
379	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	420	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
380	}	421	}
381		422
382	static aio_req	423	static aio_req
383	SvAIO_REQ (SV *sv)	424	SvAIO_REQ (SV *sv)
384	{	425	{
…		…
403	|| SvTYPE (SvRV (sv)) != SVt_PVMG	444	|| SvTYPE (SvRV (sv)) != SVt_PVMG
404	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	445	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
405	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	446	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
406		447
407	return (aio_wd)(long)SvIVX (SvRV (sv));	448	return (aio_wd)(long)SvIVX (SvRV (sv));
		449	}
		450
		451	static SV *
		452	newmortalFH (int fd, int flags)
		453	{
		454	if (fd < 0)
		455	return &PL_sv_undef;
		456
		457	GV *gv = (GV *)sv_newmortal ();
		458	char sym[64];
		459	int symlen;
		460
		461	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		462	gv_init (gv, aio_stash, sym, symlen, 0);
		463
		464	symlen = snprintf (
		465	sym,
		466	sizeof (sym),
		467	"%s&=%d",
		468	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		469	fd
		470	);
		471
		472	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		473	? (SV *)gv : &PL_sv_undef;
408	}	474	}
409		475
410	static void	476	static void
411	aio_grp_feed (aio_req grp)	477	aio_grp_feed (aio_req grp)
412	{	478	{
…		…
540	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	606	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
541	}	607	}
542	break;	608	break;
543		609
544	case EIO_OPEN:	610	case EIO_OPEN:
545	{	611	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;	612	break;
574		613
575	case EIO_STATVFS:	614	case EIO_STATVFS:
576	case EIO_FSTATVFS:	615	case EIO_FSTATVFS:
577	{	616	{
…		…
580	#ifndef _WIN32	619	#ifndef _WIN32
581	if (req->result >= 0)	620	if (req->result >= 0)
582	{	621	{
583	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	622	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
584	HV *hv = newHV ();	623	HV *hv = newHV ();
		624	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		625	* chooses to make it a struct.
		626	*/
		627	unsigned long fsid = 0;
		628	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
585		629
586	rv = sv_2mortal (newRV_noinc ((SV *)hv));	630	rv = sv_2mortal (newRV_noinc ((SV *)hv));
587		631
588	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	632	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);	633	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);	635	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);	636	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);	637	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);	638	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);	639	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);	640	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
597	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	641	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);	642	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
599	}	643	}
600	#endif	644	#endif
601		645
…		…
652	SvSETMAGIC (req->sv2);	696	SvSETMAGIC (req->sv2);
653	PUSHs (sv_result);	697	PUSHs (sv_result);
654	}	698	}
655	break;	699	break;
656		700
		701	case EIO_SLURP:
		702	{
		703	if (req->result >= 0)
		704	{
		705	/* if length was originally not known, we steal the malloc'ed memory */
		706	if (req->flags & EIO_FLAG_PTR2_FREE)
		707	{
		708	req->flags &= ~EIO_FLAG_PTR2_FREE;
		709	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		710	}
		711	else
		712	{
		713	SvCUR_set (req->sv2, req->result);
		714	*SvEND (req->sv2) = 0;
		715	SvPOK_only (req->sv2);
		716	}
		717
		718	SvSETMAGIC (req->sv2);
		719	}
		720
		721	PUSHs (sv_result);
		722	}
		723	break;
		724
		725	case EIO_CUSTOM:
		726	if (req->feed == fiemap)
		727	{
		728	#if HAVE_FIEMAP
		729	if (!req->result)
		730	{
		731	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		732
		733	if (fiemap->fm_extent_count)
		734	{
		735	AV *av = newAV ();
		736	int i;
		737
		738	while (fiemap->fm_mapped_extents)
		739	{
		740	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		741	AV *ext_av = newAV ();
		742
		743	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		744	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		745	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		746	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		747
		748	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		749	}
		750
		751	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		752	}
		753	else
		754	{
		755	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		756	PUSHs (sv_result);
		757	}
		758	}
		759	#endif
		760	}
		761	else
		762	PUSHs (sv_result);
		763	break;
		764
657	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	765	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
658	if (req->result > 0)	766	if (req->result > 0)
659	SvIV_set (sv_result, 0);	767	SvIV_set (sv_result, 0);
660	/* FALLTHROUGH */	768	/* FALLTHROUGH */
661		769
…		…
726	{	834	{
727	while (eio_nreqs ())	835	while (eio_nreqs ())
728	{	836	{
729	int size;	837	int size;
730		838
731	X_LOCK (reslock);	839	X_LOCK (EIO_POOL->reslock);
732	size = res_queue.size;	840	size = EIO_POOL->res_queue.size;
733	X_UNLOCK (reslock);	841	X_UNLOCK (EIO_POOL->reslock);
734		842
735	if (size)	843	if (size)
736	return;	844	return;
737		845
738	etp_maybe_start_thread ();	846	etp_maybe_start_thread (EIO_POOL);
739		847
740	s_epipe_wait (&respipe);	848	s_epipe_wait (&respipe);
741	}	849	}
742	}	850	}
743		851
…		…
764	create_respipe ();	872	create_respipe ();
765		873
766	if (eio_init (want_poll, done_poll) < 0)	874	if (eio_init (want_poll, done_poll) < 0)
767	croak ("IO::AIO: unable to initialise eio library");	875	croak ("IO::AIO: unable to initialise eio library");
768	}	876	}
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		877
813	/*****************************************************************************/	878	/*****************************************************************************/
814		879
815	static SV *	880	static SV *
816	get_cb (SV *cb_sv)	881	get_cb (SV *cb_sv)
…		…
912	req_set_path1 (req, fh_or_path);	977	req_set_path1 (req, fh_or_path);
913	break;	978	break;
914	}	979	}
915	}	980	}
916		981
		982	/*****************************************************************************/
		983
		984	static void
		985	ts_set (struct timespec *ts, NV value)
		986	{
		987	ts->tv_sec = value;
		988	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		989	}
		990
		991	static NV
		992	ts_get (const struct timespec *ts)
		993	{
		994	return ts->tv_sec + ts->tv_nsec * 1e-9;
		995	}
		996
		997	/*****************************************************************************/
		998
917	XS(boot_IO__AIO) ecb_cold;	999	XS(boot_IO__AIO) ecb_cold;
918		1000
919	MODULE = IO::AIO PACKAGE = IO::AIO	1001	MODULE = IO::AIO PACKAGE = IO::AIO
920		1002
921	PROTOTYPES: ENABLE	1003	PROTOTYPES: ENABLE
…		…
927	IV iv;	1009	IV iv;
928	} *civ, const_iv[] = {	1010	} *civ, const_iv[] = {
929	# define const_niv(name, value) { # name, (IV) value },	1011	# define const_niv(name, value) { # name, (IV) value },
930	# define const_iv(name) { # name, (IV) name },	1012	# define const_iv(name) { # name, (IV) name },
931	# define const_eio(name) { # name, (IV) EIO_ ## name },	1013	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1014
		1015	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1016	/* the first block can be undef if missing */
		1017	const_iv (ENOSYS)
932	const_iv (EXDEV)	1018	const_iv (EXDEV)
933	const_iv (ENOSYS)	1019	const_iv (EBADR)
		1020
		1021	/* for lseek */
		1022	const_iv (SEEK_DATA)
		1023	const_iv (SEEK_HOLE)
		1024
		1025	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1026	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1027	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1028	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1029	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1030	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1031
		1032	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1033	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1034	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1035	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1036	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1037
		1038	/* the second block will be 0 when missing */
934	const_iv (O_RDONLY)	1039	const_iv (O_RDONLY)
935	const_iv (O_WRONLY)	1040	const_iv (O_WRONLY)
936	const_iv (O_RDWR)	1041	const_iv (O_RDWR)
937	const_iv (O_CREAT)	1042	const_iv (O_CREAT)
938	const_iv (O_TRUNC)	1043	const_iv (O_TRUNC)
…		…
951	const_iv (O_SEARCH)	1056	const_iv (O_SEARCH)
952	const_iv (O_DIRECTORY)	1057	const_iv (O_DIRECTORY)
953	const_iv (O_DSYNC)	1058	const_iv (O_DSYNC)
954	const_iv (O_RSYNC)	1059	const_iv (O_RSYNC)
955	const_iv (O_SYNC)	1060	const_iv (O_SYNC)
		1061	const_iv (O_PATH)
		1062	const_iv (O_TMPFILE)
956	const_iv (O_TTY_INIT)	1063	const_iv (O_TTY_INIT)
957		1064
958	const_iv (S_IFIFO)	1065	const_iv (S_IFIFO)
959	const_iv (S_IFCHR)	1066	const_iv (S_IFCHR)
960	const_iv (S_IFBLK)	1067	const_iv (S_IFBLK)
…		…
962	const_iv (S_IFREG)	1069	const_iv (S_IFREG)
963	const_iv (S_IFDIR)	1070	const_iv (S_IFDIR)
964	const_iv (S_IFWHT)	1071	const_iv (S_IFWHT)
965	const_iv (S_IFSOCK)	1072	const_iv (S_IFSOCK)
966	const_iv (S_IFMT)	1073	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		1074
981	const_iv (ST_RDONLY)	1075	const_iv (ST_RDONLY)
982	const_iv (ST_NOSUID)	1076	const_iv (ST_NOSUID)
983	const_iv (ST_NODEV)	1077	const_iv (ST_NODEV)
984	const_iv (ST_NOEXEC)	1078	const_iv (ST_NOEXEC)
…		…
994	const_iv (PROT_NONE)	1088	const_iv (PROT_NONE)
995	const_iv (PROT_EXEC)	1089	const_iv (PROT_EXEC)
996	const_iv (PROT_READ)	1090	const_iv (PROT_READ)
997	const_iv (PROT_WRITE)	1091	const_iv (PROT_WRITE)
998		1092
999	/*const_iv (MAP_FIXED)*/
1000	const_iv (MAP_PRIVATE)	1093	const_iv (MAP_PRIVATE)
1001	const_iv (MAP_SHARED)	1094	const_iv (MAP_SHARED)
		1095	const_iv (MAP_FIXED)
1002	const_iv (MAP_ANONYMOUS)	1096	const_iv (MAP_ANONYMOUS)
1003		1097
1004	/* linuxish */	1098	/* linuxish */
1005	const_iv (MAP_HUGETLB)
1006	const_iv (MAP_LOCKED)	1099	const_iv (MAP_LOCKED)
1007	const_iv (MAP_NORESERVE)	1100	const_iv (MAP_NORESERVE)
1008	const_iv (MAP_POPULATE)	1101	const_iv (MAP_POPULATE)
1009	const_iv (MAP_NONBLOCK)	1102	const_iv (MAP_NONBLOCK)
		1103	const_iv (MAP_GROWSDOWN)
		1104	const_iv (MAP_32BIT)
		1105	const_iv (MAP_HUGETLB)
		1106	const_iv (MAP_STACK)
1010		1107
		1108	const_iv (F_DUPFD_CLOEXEC)
		1109
		1110	const_iv (F_OFD_GETLK)
		1111	const_iv (F_OFD_SETLK)
		1112	const_iv (F_OFD_GETLKW)
		1113
		1114	const_iv (FIFREEZE)
		1115	const_iv (FITHAW)
		1116	const_iv (FITRIM)
		1117	const_iv (FICLONE)
		1118	const_iv (FICLONERANGE)
		1119	const_iv (FIDEDUPERANGE)
		1120
		1121	const_iv (FS_IOC_GETFLAGS)
		1122	const_iv (FS_IOC_SETFLAGS)
		1123	const_iv (FS_IOC_GETVERSION)
		1124	const_iv (FS_IOC_SETVERSION)
		1125	const_iv (FS_IOC_FIEMAP)
		1126	const_iv (FS_IOC_FSGETXATTR)
		1127	const_iv (FS_IOC_FSSETXATTR)
		1128	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1129	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1130	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1131
		1132	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1133
		1134	const_iv (FS_SECRM_FL)
		1135	const_iv (FS_UNRM_FL)
		1136	const_iv (FS_COMPR_FL)
		1137	const_iv (FS_SYNC_FL)
		1138	const_iv (FS_IMMUTABLE_FL)
		1139	const_iv (FS_APPEND_FL)
		1140	const_iv (FS_NODUMP_FL)
		1141	const_iv (FS_NOATIME_FL)
		1142	const_iv (FS_DIRTY_FL)
		1143	const_iv (FS_COMPRBLK_FL)
		1144	const_iv (FS_NOCOMP_FL)
		1145	const_iv (FS_ENCRYPT_FL)
		1146	const_iv (FS_BTREE_FL)
		1147	const_iv (FS_INDEX_FL)
		1148	const_iv (FS_JOURNAL_DATA_FL)
		1149	const_iv (FS_NOTAIL_FL)
		1150	const_iv (FS_DIRSYNC_FL)
		1151	const_iv (FS_TOPDIR_FL)
		1152	const_iv (FS_FL_USER_MODIFIABLE)
		1153
		1154	const_iv (FS_XFLAG_REALTIME)
		1155	const_iv (FS_XFLAG_PREALLOC)
		1156	const_iv (FS_XFLAG_IMMUTABLE)
		1157	const_iv (FS_XFLAG_APPEND)
		1158	const_iv (FS_XFLAG_SYNC)
		1159	const_iv (FS_XFLAG_NOATIME)
		1160	const_iv (FS_XFLAG_NODUMP)
		1161	const_iv (FS_XFLAG_RTINHERIT)
		1162	const_iv (FS_XFLAG_PROJINHERIT)
		1163	const_iv (FS_XFLAG_NOSYMLINKS)
		1164	const_iv (FS_XFLAG_EXTSIZE)
		1165	const_iv (FS_XFLAG_EXTSZINHERIT)
		1166	const_iv (FS_XFLAG_NODEFRAG)
		1167	const_iv (FS_XFLAG_FILESTREAM)
		1168	const_iv (FS_XFLAG_DAX)
		1169	const_iv (FS_XFLAG_HASATTR)
		1170
		1171	const_iv (FIEMAP_FLAG_SYNC)
		1172	const_iv (FIEMAP_FLAG_XATTR)
		1173	const_iv (FIEMAP_FLAGS_COMPAT)
		1174	const_iv (FIEMAP_EXTENT_LAST)
		1175	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1176	const_iv (FIEMAP_EXTENT_DELALLOC)
		1177	const_iv (FIEMAP_EXTENT_ENCODED)
		1178	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1179	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1180	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1181	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1182	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1183	const_iv (FIEMAP_EXTENT_MERGED)
		1184	const_iv (FIEMAP_EXTENT_SHARED)
		1185
		1186	const_iv (SPLICE_F_MOVE)
		1187	const_iv (SPLICE_F_NONBLOCK)
		1188	const_iv (SPLICE_F_MORE)
		1189	const_iv (SPLICE_F_GIFT)
		1190
		1191	const_iv (EFD_CLOEXEC)
		1192	const_iv (EFD_NONBLOCK)
		1193	const_iv (EFD_SEMAPHORE)
		1194
		1195	const_iv (CLOCK_REALTIME)
		1196	const_iv (CLOCK_MONOTONIC)
		1197	const_iv (CLOCK_BOOTTIME)
		1198	const_iv (CLOCK_REALTIME_ALARM)
		1199	const_iv (CLOCK_BOOTTIME_ALARM)
		1200
		1201	const_iv (TFD_NONBLOCK)
		1202	const_iv (TFD_CLOEXEC)
		1203
		1204	const_iv (TFD_TIMER_ABSTIME)
		1205	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1206
		1207	/* these are libeio constants, and are independent of gendef0 */
1011	const_eio (SEEK_SET)	1208	const_eio (SEEK_SET)
1012	const_eio (SEEK_CUR)	1209	const_eio (SEEK_CUR)
1013	const_eio (SEEK_END)	1210	const_eio (SEEK_END)
1014		1211
1015	const_eio (MCL_FUTURE)	1212	const_eio (MCL_FUTURE)
…		…
1024	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1221	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1025	const_eio (SYNC_FILE_RANGE_WRITE)	1222	const_eio (SYNC_FILE_RANGE_WRITE)
1026	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1223	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1027		1224
1028	const_eio (FALLOC_FL_KEEP_SIZE)	1225	const_eio (FALLOC_FL_KEEP_SIZE)
		1226	const_eio (FALLOC_FL_PUNCH_HOLE)
		1227	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1228	const_eio (FALLOC_FL_ZERO_RANGE)
		1229	const_eio (FALLOC_FL_INSERT_RANGE)
		1230	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1231
		1232	const_eio (RENAME_NOREPLACE)
		1233	const_eio (RENAME_EXCHANGE)
		1234	const_eio (RENAME_WHITEOUT)
1029		1235
1030	const_eio (READDIR_DENTS)	1236	const_eio (READDIR_DENTS)
1031	const_eio (READDIR_DIRS_FIRST)	1237	const_eio (READDIR_DIRS_FIRST)
1032	const_eio (READDIR_STAT_ORDER)	1238	const_eio (READDIR_STAT_ORDER)
1033	const_eio (READDIR_FOUND_UNKNOWN)	1239	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1101	PROTOTYPE: $	1307	PROTOTYPE: $
1102	CODE:	1308	CODE:
1103	max_outstanding = maxreqs;	1309	max_outstanding = maxreqs;
1104		1310
1105	void	1311	void
1106	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1312	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1107	PPCODE:	1313	PPCODE:
1108	{	1314	{
1109	dREQ;	1315	dREQ;
1110		1316
1111	req->type = EIO_WD_OPEN;	1317	req->type = EIO_WD_OPEN;
…		…
1113		1319
1114	REQ_SEND;	1320	REQ_SEND;
1115	}	1321	}
1116		1322
1117	void	1323	void
1118	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1324	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1119	PPCODE:	1325	PPCODE:
1120	{	1326	{
1121	dREQ;	1327	dREQ;
1122		1328
1123	req->type = EIO_OPEN;	1329	req->type = EIO_OPEN;
…		…
1127		1333
1128	REQ_SEND;	1334	REQ_SEND;
1129	}	1335	}
1130		1336
1131	void	1337	void
1132	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1338	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1133	ALIAS:	1339	ALIAS:
1134	aio_fsync = EIO_FSYNC	1340	aio_fsync = EIO_FSYNC
1135	aio_fdatasync = EIO_FDATASYNC	1341	aio_fdatasync = EIO_FDATASYNC
1136	aio_syncfs = EIO_SYNCFS	1342	aio_syncfs = EIO_SYNCFS
1137	PPCODE:	1343	PPCODE:
1138	{	1344	{
1139	int fd = s_fileno_croak (fh, 0);	1345	int fd = s_fileno_croak (fh, 0);
1140	dREQ;	1346	dREQ;
1141		1347
1142	req->type = ix;	1348	req->type = ix;
1143	req->sv1 = newSVsv (fh);	1349	req->sv1 = newSVsv (fh);
1144	req->int1 = fd;	1350	req->int1 = fd;
1145		1351
1146	REQ_SEND;	1352	REQ_SEND;
1147	}	1353	}
1148		1354
1149	void	1355	void
1150	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1356	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1151	PPCODE:	1357	PPCODE:
1152	{	1358	{
1153	int fd = s_fileno_croak (fh, 0);	1359	int fd = s_fileno_croak (fh, 0);
1154	dREQ;	1360	dREQ;
1155		1361
1156	req->type = EIO_SYNC_FILE_RANGE;	1362	req->type = EIO_SYNC_FILE_RANGE;
1157	req->sv1 = newSVsv (fh);	1363	req->sv1 = newSVsv (fh);
1158	req->int1 = fd;	1364	req->int1 = fd;
…		…
1162		1368
1163	REQ_SEND;	1369	REQ_SEND;
1164	}	1370	}
1165		1371
1166	void	1372	void
1167	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1373	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1168	PPCODE:	1374	PPCODE:
1169	{	1375	{
1170	int fd = s_fileno_croak (fh, 0);	1376	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1377	dREQ;
1172		1378
1173	req->type = EIO_FALLOCATE;	1379	req->type = EIO_FALLOCATE;
1174	req->sv1 = newSVsv (fh);	1380	req->sv1 = newSVsv (fh);
1175	req->int1 = fd;	1381	req->int1 = fd;
…		…
1179		1385
1180	REQ_SEND;	1386	REQ_SEND;
1181	}	1387	}
1182		1388
1183	void	1389	void
1184	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1390	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1185	PPCODE:	1391	PPCODE:
1186	{	1392	{
1187	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1393	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1188	int fd = s_fileno_croak (fh, 0);	1394	int fd = s_fileno_croak (fh, 0);
1189	dREQ;	1395	dREQ;
1190		1396
1191	if (expect_false (close_fd < 0))	1397	if (expect_false (close_fd < 0))
1192	{	1398	{
1193	int pipefd [2];	1399	int pipefd [2];
…		…
1213		1419
1214	REQ_SEND;	1420	REQ_SEND;
1215	}	1421	}
1216		1422
1217	void	1423	void
1218	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)	1424	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1219	PPCODE:	1425	PPCODE:
1220	{	1426	{
1221	STRLEN svlen;
1222	int fd = s_fileno_croak (fh, 0);	1427	int fd = s_fileno_croak (fh, 0);
1223	dREQ;	1428	dREQ;
1224		1429
1225	req->type = EIO_SEEK;	1430	req->type = EIO_SEEK;
1226	req->sv1 = newSVsv (fh);	1431	req->sv1 = newSVsv (fh);
…		…
1230		1435
1231	REQ_SEND;	1436	REQ_SEND;
1232	}	1437	}
1233		1438
1234	void	1439	void
1235	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1440	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1236	ALIAS:	1441	ALIAS:
1237	aio_read = EIO_READ	1442	aio_read = EIO_READ
1238	aio_write = EIO_WRITE	1443	aio_write = EIO_WRITE
1239	PPCODE:	1444	PPCODE:
1240	{	1445	{
…		…
1256	len = svlen - dataoffset;	1461	len = svlen - dataoffset;
1257	}	1462	}
1258	else	1463	else
1259	{	1464	{
1260	/* read: check type and grow scalar as necessary */	1465	/* read: check type and grow scalar as necessary */
1261	SvUPGRADE (data, SVt_PV);	1466	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1262	svptr = SvGROW (data, len + dataoffset + 1);	1467	svptr = sv_grow (data, len + dataoffset + 1);
		1468	else if (SvCUR (data) < len + dataoffset)
		1469	croak ("length + dataoffset outside of scalar, and cannot grow");
1263	}	1470	}
1264		1471
1265	{	1472	{
1266	dREQ;	1473	dREQ;
1267		1474
…		…
1283	REQ_SEND;	1490	REQ_SEND;
1284	}	1491	}
1285	}	1492	}
1286		1493
1287	void	1494	void
		1495	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1496	ALIAS:
		1497	aio_ioctl = EIO_IOCTL
		1498	aio_fcntl = EIO_FCNTL
		1499	PPCODE:
		1500	{
		1501	int fd = s_fileno_croak (fh, 0);
		1502	char *svptr;
		1503
		1504	if (SvPOK (arg) || !SvNIOK (arg))
		1505	{
		1506	STRLEN svlen;
		1507	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1508	#ifdef IOCPARM_LEN
		1509	STRLEN need = IOCPARM_LEN (request);
		1510	#else
		1511	STRLEN need = 256;
		1512	#endif
		1513
		1514	if (svlen < need)
		1515	svptr = SvGROW (arg, need);
		1516	}
		1517	else
		1518	svptr = (char *)SvIV (arg);
		1519
		1520	{
		1521	dREQ;
		1522
		1523	req->type = ix;
		1524	req->sv1 = newSVsv (fh);
		1525	req->int1 = fd;
		1526	req->int2 = (long)request;
		1527	req->sv2 = SvREFCNT_inc (arg);
		1528	req->ptr2 = svptr;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
1288	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1535	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1289	ALIAS:	1536	ALIAS:
1290	aio_readlink = EIO_READLINK	1537	aio_readlink = EIO_READLINK
1291	aio_realpath = EIO_REALPATH	1538	aio_realpath = EIO_REALPATH
1292	PPCODE:	1539	PPCODE:
1293	{	1540	{
…		…
1298		1545
1299	REQ_SEND;	1546	REQ_SEND;
1300	}	1547	}
1301		1548
1302	void	1549	void
1303	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1550	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1304	PPCODE:	1551	PPCODE:
1305	{	1552	{
1306	int ifd = s_fileno_croak (in_fh , 0);	1553	int ifd = s_fileno_croak (in_fh , 0);
1307	int ofd = s_fileno_croak (out_fh, 1);	1554	int ofd = s_fileno_croak (out_fh, 1);
1308	dREQ;	1555	dREQ;
1309		1556
1310	req->type = EIO_SENDFILE;	1557	req->type = EIO_SENDFILE;
1311	req->sv1 = newSVsv (out_fh);	1558	req->sv1 = newSVsv (out_fh);
1312	req->int1 = ofd;	1559	req->int1 = ofd;
…		…
1317		1564
1318	REQ_SEND;	1565	REQ_SEND;
1319	}	1566	}
1320		1567
1321	void	1568	void
1322	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1569	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1323	PPCODE:	1570	PPCODE:
1324	{	1571	{
1325	int fd = s_fileno_croak (fh, 0);	1572	int fd = s_fileno_croak (fh, 0);
1326	dREQ;	1573	dREQ;
1327		1574
1328	req->type = EIO_READAHEAD;	1575	req->type = EIO_READAHEAD;
1329	req->sv1 = newSVsv (fh);	1576	req->sv1 = newSVsv (fh);
1330	req->int1 = fd;	1577	req->int1 = fd;
…		…
1333		1580
1334	REQ_SEND;	1581	REQ_SEND;
1335	}	1582	}
1336		1583
1337	void	1584	void
1338	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1585	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1339	ALIAS:	1586	ALIAS:
1340	aio_stat = EIO_STAT	1587	aio_stat = EIO_STAT
1341	aio_lstat = EIO_LSTAT	1588	aio_lstat = EIO_LSTAT
1342	aio_statvfs = EIO_STATVFS	1589	aio_statvfs = EIO_STATVFS
1343	PPCODE:	1590	PPCODE:
…		…
1352	UV	1599	UV
1353	major (UV dev)	1600	major (UV dev)
1354	ALIAS:	1601	ALIAS:
1355	minor = 1	1602	minor = 1
1356	CODE:	1603	CODE:
1357	RETVAL = ix ? major (dev) : minor (dev);	1604	RETVAL = ix ? minor (dev) : major (dev);
1358	OUTPUT:	1605	OUTPUT:
1359	RETVAL	1606	RETVAL
1360		1607
1361	UV	1608	UV
1362	makedev (UV maj, UV min)	1609	makedev (UV maj, UV min)
…		…
1364	RETVAL = makedev (maj, min);	1611	RETVAL = makedev (maj, min);
1365	OUTPUT:	1612	OUTPUT:
1366	RETVAL	1613	RETVAL
1367		1614
1368	void	1615	void
1369	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1616	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1370	PPCODE:	1617	PPCODE:
1371	{	1618	{
1372	dREQ;	1619	dREQ;
1373		1620
1374	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1621	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1377		1624
1378	REQ_SEND;	1625	REQ_SEND;
1379	}	1626	}
1380		1627
1381	void	1628	void
1382	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1629	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1383	PPCODE:	1630	PPCODE:
1384	{	1631	{
1385	dREQ;	1632	dREQ;
1386		1633
1387	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1389		1636
1390	REQ_SEND;	1637	REQ_SEND;
1391	}	1638	}
1392		1639
1393	void	1640	void
1394	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1641	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1395	PPCODE:	1642	PPCODE:
1396	{	1643	{
1397	dREQ;	1644	dREQ;
1398		1645
1399	req->int2 = mode;	1646	req->int2 = mode;
…		…
1401		1648
1402	REQ_SEND;	1649	REQ_SEND;
1403	}	1650	}
1404		1651
1405	void	1652	void
1406	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1653	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1407	PPCODE:	1654	PPCODE:
1408	{	1655	{
1409	dREQ;	1656	dREQ;
1410		1657
1411	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1658	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1414		1661
1415	REQ_SEND;	1662	REQ_SEND;
1416	}	1663	}
1417		1664
1418	void	1665	void
1419	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1666	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1420	PPCODE:	1667	PPCODE:
1421	{	1668	{
1422	dREQ;	1669	dREQ;
1423		1670
1424	req->type = EIO_READDIR;	1671	req->type = EIO_READDIR;
…		…
1431		1678
1432	REQ_SEND;	1679	REQ_SEND;
1433	}	1680	}
1434		1681
1435	void	1682	void
1436	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1683	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1437	PPCODE:	1684	PPCODE:
1438	{	1685	{
1439	dREQ;	1686	dREQ;
1440		1687
1441	req->type = EIO_MKDIR;	1688	req->type = EIO_MKDIR;
…		…
1444		1691
1445	REQ_SEND;	1692	REQ_SEND;
1446	}	1693	}
1447		1694
1448	void	1695	void
1449	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1696	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1450	ALIAS:	1697	ALIAS:
1451	aio_unlink = EIO_UNLINK	1698	aio_unlink = EIO_UNLINK
1452	aio_rmdir = EIO_RMDIR	1699	aio_rmdir = EIO_RMDIR
1453	aio_readdir = EIO_READDIR	1700	aio_readdir = EIO_READDIR
1454	PPCODE:	1701	PPCODE:
…		…
1460		1707
1461	REQ_SEND;	1708	REQ_SEND;
1462	}	1709	}
1463		1710
1464	void	1711	void
1465	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1712	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1466	ALIAS:	1713	ALIAS:
1467	aio_link = EIO_LINK	1714	aio_link = EIO_LINK
1468	aio_symlink = EIO_SYMLINK	1715	aio_symlink = EIO_SYMLINK
1469	aio_rename = EIO_RENAME	1716	aio_rename = EIO_RENAME
1470	PPCODE:	1717	PPCODE:
…		…
1479		1726
1480	REQ_SEND;	1727	REQ_SEND;
1481	}	1728	}
1482		1729
1483	void	1730	void
		1731	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	eio_wd wd2 = 0;
		1735	dREQ;
		1736
		1737	req->type = EIO_RENAME;
		1738	req_set_path1 (req, oldpath);
		1739	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1740	req->int2 = flags;
		1741	req->int3 = (long)wd2;
		1742
		1743	REQ_SEND;
		1744	}
		1745
		1746	void
1484	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1747	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1485	PPCODE:	1748	PPCODE:
1486	{	1749	{
1487	dREQ;	1750	dREQ;
1488		1751
1489	req->type = EIO_MKNOD;	1752	req->type = EIO_MKNOD;
…		…
1493		1756
1494	REQ_SEND;	1757	REQ_SEND;
1495	}	1758	}
1496		1759
1497	void	1760	void
1498	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1761	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1499	ALIAS:	1762	ALIAS:
1500	aio_mtouch = EIO_MTOUCH	1763	aio_mtouch = EIO_MTOUCH
1501	aio_msync = EIO_MSYNC	1764	aio_msync = EIO_MSYNC
1502	PPCODE:	1765	PPCODE:
1503	{	1766	{
1504	STRLEN svlen;	1767	STRLEN svlen;
1505	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1506	UV len = SvUV (length);	1769	UV len = SvUV (length);
		1770
		1771	if (flags < 0)
		1772	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1507		1773
1508	if (offset < 0)	1774	if (offset < 0)
1509	offset += svlen;	1775	offset += svlen;
1510		1776
1511	if (offset < 0 || offset > svlen)	1777	if (offset < 0 || offset > svlen)
…		…
1526	REQ_SEND;	1792	REQ_SEND;
1527	}	1793	}
1528	}	1794	}
1529		1795
1530	void	1796	void
1531	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1797	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1532	PPCODE:	1798	PPCODE:
1533	{	1799	{
1534	STRLEN svlen;	1800	STRLEN svlen;
1535	char *svptr = SvPVbyte (data, svlen);	1801	char *svptr = SvPVbyte (data, svlen);
1536	UV len = SvUV (length);	1802	UV len = SvUV (length);
…		…
1555	REQ_SEND;	1821	REQ_SEND;
1556	}	1822	}
1557	}	1823	}
1558		1824
1559	void	1825	void
1560	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1826	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1561	PPCODE:	1827	PPCODE:
1562	{	1828	{
1563	dREQ;	1829	dREQ;
1564		1830
1565	req->type = EIO_MLOCKALL;	1831	req->type = EIO_MLOCKALL;
…		…
1567		1833
1568	REQ_SEND;	1834	REQ_SEND;
1569	}	1835	}
1570		1836
1571	void	1837	void
		1838	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1839	PPCODE:
		1840	{
		1841	int fd = s_fileno_croak (fh, 0);
		1842	dREQ;
		1843
		1844	req->type = EIO_CUSTOM;
		1845	req->sv1 = newSVsv (fh);
		1846	req->int1 = fd;
		1847
		1848	req->feed = fiemap;
		1849	#if HAVE_FIEMAP
		1850	/* keep our fingers crossed that the next two types are 64 bit */
		1851	req->offs = start;
		1852	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1853	req->int2 = flags;
		1854	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1855	#endif
		1856
		1857	REQ_SEND;
		1858	}
		1859
		1860	void
		1861	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1862	PPCODE:
		1863	{
		1864	char *svptr = 0;
		1865
		1866	sv_clear_foreign (data);
		1867
		1868	if (length) /* known length, directly read into scalar */
		1869	{
		1870	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1871	svptr = sv_grow (data, length + 1);
		1872	else if (SvCUR (data) < length)
		1873	croak ("length outside of scalar, and cannot grow");
		1874	else
		1875	svptr = SvPVbyte_nolen (data);
		1876	}
		1877
		1878	{
		1879	dREQ;
		1880
		1881	req->type = EIO_SLURP;
		1882	req_set_path1 (req, pathname);
		1883	req->offs = offset;
		1884	req->size = length;
		1885	req->sv2 = SvREFCNT_inc (data);
		1886	req->ptr2 = svptr;
		1887
		1888	if (!SvREADONLY (data))
		1889	{
		1890	SvREADONLY_on (data);
		1891	req->flags |= FLAG_SV2_RO_OFF;
		1892	}
		1893
		1894	REQ_SEND;
		1895	}
		1896	}
		1897
		1898	void
1572	aio_busy (double delay, SV *callback=&PL_sv_undef)	1899	aio_busy (double delay, SV *callback = &PL_sv_undef)
1573	PPCODE:	1900	PPCODE:
1574	{	1901	{
1575	dREQ;	1902	dREQ;
1576		1903
1577	req->type = EIO_BUSY;	1904	req->type = EIO_BUSY;
…		…
1579		1906
1580	REQ_SEND;	1907	REQ_SEND;
1581	}	1908	}
1582		1909
1583	void	1910	void
1584	aio_group (SV *callback=&PL_sv_undef)	1911	aio_group (SV *callback = &PL_sv_undef)
1585	PPCODE:	1912	PPCODE:
1586	{	1913	{
1587	dREQ;	1914	dREQ;
1588		1915
1589	req->type = EIO_GROUP;	1916	req->type = EIO_GROUP;
1590		1917
		1918	PUTBACK;
1591	req_submit (req);	1919	req_submit (req);
		1920	SPAGAIN;
		1921
1592	XPUSHs (req_sv (req, aio_grp_stash));	1922	XPUSHs (req_sv (req, aio_grp_stash));
1593	}	1923	}
1594		1924
1595	void	1925	void
1596	aio_nop (SV *callback=&PL_sv_undef)	1926	aio_nop (SV *callback = &PL_sv_undef)
1597	ALIAS:	1927	ALIAS:
1598	aio_nop = EIO_NOP	1928	aio_nop = EIO_NOP
1599	aio_sync = EIO_SYNC	1929	aio_sync = EIO_SYNC
1600	PPCODE:	1930	PPCODE:
1601	{	1931	{
…		…
1605		1935
1606	REQ_SEND;	1936	REQ_SEND;
1607	}	1937	}
1608		1938
1609	int	1939	int
1610	aioreq_pri (int pri = 0)	1940	aioreq_pri (int pri = NO_INIT)
1611	CODE:	1941	CODE:
1612	RETVAL = next_pri;	1942	RETVAL = next_pri;
1613	if (items > 0)	1943	if (items > 0)
1614	{	1944	{
1615	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1945	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1705	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2035	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1706	OUTPUT:	2036	OUTPUT:
1707	RETVAL	2037	RETVAL
1708		2038
1709	void	2039	void
1710	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2040	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1711	PPCODE:	2041	PPCODE:
1712	sv_unmagic (scalar, MMAP_MAGIC);	2042	sv_clear_foreign (scalar);
1713	{	2043	{
1714	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2044	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1715	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2045	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1716	if (addr == (void *)-1)	2046	if (addr == (void *)-1)
1717	XSRETURN_NO;	2047	XSRETURN_NO;
1718		2048
1719	sv_force_normal (scalar);	2049	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		2050
1727	if (!(prot & PROT_WRITE))	2051	if (!(prot & PROT_WRITE))
1728	SvREADONLY_on (scalar);	2052	SvREADONLY_on (scalar);
1729		2053
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;	2054	XSRETURN_YES;
1739	}	2055	}
1740		2056
1741	void	2057	void
1742	munmap (SV *scalar)	2058	munmap (SV *scalar)
1743	CODE:	2059	CODE:
1744	sv_unmagic (scalar, MMAP_MAGIC);	2060	sv_clear_foreign (scalar);
1745		2061
1746	int	2062	int
1747	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2063	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1748	ALIAS:	2064	ALIAS:
1749	mprotect = 1	2065	mprotect = 1
1750	CODE:	2066	CODE:
1751	{	2067	{
1752	STRLEN svlen;	2068	STRLEN svlen;
1753	void *addr = SvPVbyte (scalar, svlen);	2069	void *addr = SvPVbyte (scalar, svlen);
1754	size_t len = SvUV (length);	2070	STRLEN len = SvUV (length);
1755		2071
1756	if (offset < 0)	2072	if (offset < 0)
1757	offset += svlen;	2073	offset += svlen;
1758		2074
1759	if (offset < 0 || offset > svlen)	2075	if (offset < 0 || offset > svlen)
…		…
1773	}	2089	}
1774	OUTPUT:	2090	OUTPUT:
1775	RETVAL	2091	RETVAL
1776		2092
1777	int	2093	int
1778	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2094	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1779	CODE:	2095	CODE:
1780	{	2096	{
1781	STRLEN svlen;	2097	STRLEN svlen;
1782	void *addr = SvPVbyte (scalar, svlen);	2098	void *addr = SvPVbyte (scalar, svlen);
1783	size_t len = SvUV (length);	2099	size_t len = SvUV (length);
1784		2100
1785	if (offset < 0)	2101	if (offset < 0)
1786	offset += svlen;	2102	offset += svlen;
1787		2103
…		…
1794	addr = (void *)(((intptr_t)addr) + offset);	2110	addr = (void *)(((intptr_t)addr) + offset);
1795	eio_page_align (&addr, &len);	2111	eio_page_align (&addr, &len);
1796	#if _POSIX_MEMLOCK_RANGE	2112	#if _POSIX_MEMLOCK_RANGE
1797	RETVAL = munlock (addr, len);	2113	RETVAL = munlock (addr, len);
1798	#else	2114	#else
1799	RETVAL = ((errno = ENOSYS), -1);	2115	RETVAL = EIO_ENOSYS ();
1800	#endif	2116	#endif
1801	}	2117	}
1802	OUTPUT:	2118	OUTPUT:
1803	RETVAL	2119	RETVAL
1804		2120
…		…
1806	munlockall ()	2122	munlockall ()
1807	CODE:	2123	CODE:
1808	#if _POSIX_MEMLOCK	2124	#if _POSIX_MEMLOCK
1809	munlockall ();	2125	munlockall ();
1810	#else	2126	#else
1811	RETVAL = -1;	2127	RETVAL = EIO_ENOSYS ();
1812	errno = ENOSYS;
1813	#endif	2128	#endif
1814	OUTPUT:	2129	OUTPUT:
1815	RETVAL	2130	RETVAL
		2131
		2132	int
		2133	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2134	CODE:
		2135	{
		2136	#if HAVE_LINUX_SPLICE
		2137	loff_t off_in_, off_out_;
		2138	RETVAL = splice (
		2139	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2140	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2141	length, flags
		2142	);
		2143	#else
		2144	RETVAL = EIO_ENOSYS ();
		2145	#endif
		2146	}
		2147	OUTPUT:
		2148	RETVAL
		2149
		2150	int
		2151	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2152	CODE:
		2153	#if HAVE_LINUX_SPLICE
		2154	RETVAL = tee (rfh, wfh, length, flags);
		2155	#else
		2156	RETVAL = EIO_ENOSYS ();
		2157	#endif
		2158	OUTPUT:
		2159	RETVAL
		2160
		2161	int
		2162	pipesize (aio_rfd rfh, int new_size = -1)
		2163	PROTOTYPE: $;$
		2164	CODE:
		2165	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2166	if (new_size >= 0)
		2167	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2168	else
		2169	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2170	#else
		2171	errno = ENOSYS;
		2172	RETVAL = -1;
		2173	#endif
		2174	OUTPUT:
		2175	RETVAL
		2176
		2177	void
		2178	pipe2 (int flags = 0)
		2179	PROTOTYPE: ;$
		2180	PPCODE:
		2181	{
		2182	int fd[2];
		2183	int res;
		2184
		2185	if (flags)
		2186	#if HAVE_PIPE2
		2187	res = pipe2 (fd, flags);
		2188	#else
		2189	res = (errno = ENOSYS, -1);
		2190	#endif
		2191	else
		2192	res = pipe (fd);
		2193
		2194	if (!res)
		2195	{
		2196	EXTEND (SP, 2);
		2197	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2198	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2199	}
		2200	}
		2201
		2202	void
		2203	eventfd (unsigned int initval = 0, int flags = 0)
		2204	PPCODE:
		2205	{
		2206	int fd;
		2207	#if HAVE_EVENTFD
		2208	fd = eventfd (initval, flags);
		2209	#else
		2210	fd = (errno = ENOSYS, -1);
		2211	#endif
		2212
		2213	XPUSHs (newmortalFH (fd, O_RDWR));
		2214	}
		2215
		2216	void
		2217	timerfd_create (int clockid, int flags = 0)
		2218	PPCODE:
		2219	{
		2220	int fd;
		2221	#if HAVE_TIMERFD
		2222	fd = timerfd_create (clockid, flags);
		2223	#else
		2224	fd = (errno = ENOSYS, -1);
		2225	#endif
		2226
		2227	XPUSHs (newmortalFH (fd, O_RDWR));
		2228	}
		2229
		2230	void
		2231	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2232	PPCODE:
		2233	{
		2234	int fd = s_fileno_croak (fh, 0);
		2235	int res;
		2236	struct itimerspec its, ots;
		2237
		2238	ts_set (&its.it_interval, interval);
		2239	ts_set (&its.it_value , value);
		2240	#if HAVE_TIMERFD
		2241	res = timerfd_settime (fd, flags, &its, &ots);
		2242	#else
		2243	res = (errno = ENOSYS, -1);
		2244	#endif
		2245
		2246	if (!res)
		2247	{
		2248	EXTEND (SP, 2);
		2249	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2250	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2251	}
		2252	}
		2253
		2254	void
		2255	timerfd_gettime (SV *fh)
		2256	PPCODE:
		2257	{
		2258	int fd = s_fileno_croak (fh, 0);
		2259	int res;
		2260	struct itimerspec ots;
		2261	#if HAVE_TIMERFD
		2262	res = timerfd_gettime (fd, &ots);
		2263	#else
		2264	res = (errno = ENOSYS, -1);
		2265	#endif
		2266
		2267	if (!res)
		2268	{
		2269	EXTEND (SP, 2);
		2270	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2271	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2272	}
		2273	}
		2274
		2275	UV
		2276	get_fdlimit ()
		2277	CODE:
		2278	#if HAVE_RLIMITS
		2279	struct rlimit rl;
		2280	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2281	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2282	#endif
		2283	XSRETURN_UNDEF;
		2284	OUTPUT:
		2285	RETVAL
		2286
		2287	void
		2288	min_fdlimit (UV limit = 0x7fffffffU)
		2289	CODE:
		2290	{
		2291	#if HAVE_RLIMITS
		2292	struct rlimit rl;
		2293	rlim_t orig_rlim_max;
		2294	UV bit;
		2295
		2296	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2297	goto fail;
		2298
		2299	if (rl.rlim_cur == RLIM_INFINITY)
		2300	XSRETURN_YES;
		2301
		2302	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2303
		2304	if (rl.rlim_cur < limit)
		2305	{
		2306	rl.rlim_cur = limit;
		2307
		2308	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2309	rl.rlim_max = rl.rlim_cur;
		2310	}
		2311
		2312	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2313	XSRETURN_YES;
		2314
		2315	if (errno == EPERM)
		2316	{
		2317	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2318	/* our limit overflows a system-wide limit */
		2319	/* try an adaptive algorithm, but do not lower the hardlimit */
		2320	rl.rlim_max = 0;
		2321	for (bit = 0x40000000U; bit; bit >>= 1)
		2322	{
		2323	rl.rlim_max |= bit;
		2324	rl.rlim_cur = rl.rlim_max;
		2325
		2326	/* nevr decrease the hard limit */
		2327	if (rl.rlim_max < orig_rlim_max)
		2328	break;
		2329
		2330	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2331	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2332	}
		2333
		2334	/* now, raise the soft limit to the max permitted */
		2335	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2336	{
		2337	rl.rlim_cur = rl.rlim_max;
		2338	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2339	errno = EPERM;
		2340	}
		2341	}
		2342	#endif
		2343	fail:
		2344	XSRETURN_UNDEF;
		2345	}
1816		2346
1817	void _on_next_submit (SV *cb)	2347	void _on_next_submit (SV *cb)
1818	CODE:	2348	CODE:
1819	SvREFCNT_dec (on_next_submit);	2349	SvREFCNT_dec (on_next_submit);
1820	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2350	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1855	cancel (aio_req_ornot req)	2385	cancel (aio_req_ornot req)
1856	CODE:	2386	CODE:
1857	eio_cancel (req);	2387	eio_cancel (req);
1858		2388
1859	void	2389	void
1860	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2390	cb (aio_req_ornot req, SV *callback = NO_INIT)
1861	PPCODE:	2391	PPCODE:
1862	{	2392	{
1863	if (GIMME_V != G_VOID)	2393	if (GIMME_V != G_VOID)
1864	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2394	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1865		2395
1866	if (items > 1)	2396	if (items > 1)
1867	{	2397	{
1868	SV *cb_cv =get_cb (callback);	2398	SV *cb_cv = get_cb (callback);
1869		2399
1870	SvREFCNT_dec (req->callback);	2400	SvREFCNT_dec (req->callback);
1871	req->callback = SvREFCNT_inc (cb_cv);	2401	req->callback = SvREFCNT_inc (cb_cv);
1872	}	2402	}
1873	}	2403	}
…		…
1930	limit (aio_req grp, int limit)	2460	limit (aio_req grp, int limit)
1931	CODE:	2461	CODE:
1932	eio_grp_limit (grp, limit);	2462	eio_grp_limit (grp, limit);
1933		2463
1934	void	2464	void
1935	feed (aio_req grp, SV *callback=&PL_sv_undef)	2465	feed (aio_req grp, SV *callback = &PL_sv_undef)
1936	CODE:	2466	CODE:
1937	{	2467	{
1938	SvREFCNT_dec (grp->sv2);	2468	SvREFCNT_dec (grp->sv2);
1939	grp->sv2 = newSVsv (callback);	2469	grp->sv2 = newSVsv (callback);
1940	grp->feed = aio_grp_feed;	2470	grp->feed = aio_grp_feed;

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