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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.116 by root, Sat May 10 19:25:33 2008 UTC vs.
Revision 1.219 by root, Fri Jul 27 18:43:25 2012 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
		33	/* perl namespace pollution */
		34	#undef VERSION
		35
		36	/* perl stupidly overrides readdir and maybe others */
		37	/* with thread-unsafe versions, imagine that :( */
		38	#undef readdir
		39	#undef opendir
		40	#undef closedir
		41
18	#ifdef _WIN32	42	#ifdef _WIN32
19		43
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
25	# undef open	48	#undef open
26	# undef read	49	#undef read
27	# undef write	50	#undef write
28	# undef send	51	#undef send
29	# undef recv	52	#undef recv
30	# undef stat	53	#undef stat
		54	#undef lstat
31	# undef fstat	55	#undef fstat
32	# define lstat stat
33	# undef truncate	56	#undef truncate
34	# undef ftruncate	57	#undef ftruncate
35	# undef open	58	#undef open
		59	#undef link
36	# undef close	60	#undef close
37	# undef unlink	61	#undef unlink
		62	#undef mkdir
38	# undef rmdir	63	#undef rmdir
39	# undef rename	64	#undef rename
40	# undef lseek	65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
41		75
42	# define chown(a,b,c) (errno = ENOSYS, -1)	76	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	77	#define EIO_STRUCT_STATI64
44	# define fchmod(a,b) (errno = ENOSYS, -1)
45	# define symlink(a,b) (errno = ENOSYS, -1)
46	# define readlink(a,b,c) (errno = ENOSYS, -1)
47	# define mknod(a,b,c) (errno = ENOSYS, -1)
48	# define truncate(a,b) (errno = ENOSYS, -1)
49	# define ftruncate(fd,o) chsize ((fd), (o))
50	# define fsync(fd) _commit (fd)
51	# define opendir(fd) (errno = ENOSYS, 0)
52	# define readdir(fd) (errno = ENOSYS, -1)
53	# define closedir(fd) (errno = ENOSYS, -1)
54	# define mkdir(a,b) mkdir (a)
55		78
56	#else	79	#else
57		80
58	# include <sys/time.h>	81	#include <sys/time.h>
59	# include <sys/select.h>	82	#include <sys/select.h>
60	# include <unistd.h>	83	#include <unistd.h>
61	# include <utime.h>	84	#include <utime.h>
62	# include <signal.h>	85	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		86
65	#endif
66
67	#define EIO_STRUCT_STAT Stat_t	87	#define EIO_STRUCT_STAT Stat_t
68		88
69	/* use NV for 32 bit perls as it allows larger offsets */	89	#endif
70	#if IVSIZE >= 8	90
71	# define SvVAL64 SvIV	91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
72	#else	95	#else
73	# define SvVAL64 SvNV	96	# define expect(expr,value) (expr)
74	#endif	97	#endif
75		98
76	static HV *stash;	99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
77	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
		105	typedef int aio_rfd; /* read file desriptor */
		106	typedef int aio_wfd; /* write file descriptor */
78		107
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		109
82	#define EIO_COMMON \	110	#define EIO_REQ_MEMBERS \
83	SV *callback; \	111	SV *callback; \
84	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
85	STRLEN stroffset; \	114	STRLEN stroffset; \
86	SV *self	115	SV *self;
87		116
		117	#define EIO_NO_WRAPPERS 1
		118
		119	#include "libeio/config.h"
88	#include "libeio/eio.h"	120	#include "libeio/eio.h"
89		121
90	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#ifndef PAGESIZE
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 72 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (fiemap->fm_mapped_extents < count)
		200	/* either autosizing succeeded,
		201	* or the file had no extents
		202	* or we luckily had enough space */
		203	break;
		204
		205	/* some kernels overwrite fm_length, so just reset everything */
		206	fiemap->fm_start = req->offs;
		207	fiemap->fm_length = req->size;
		208	fiemap->fm_flags = req->int2;
		209	fiemap->fm_extent_count = 0;
		210
		211	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		212	return;
		213
		214	/* to work around a kernel bug, we allocate one more */
		215	count = fiemap->fm_mapped_extents + 1;
		216
		217	free (fiemap);
		218	}
		219
		220	req->result = 0;
		221
		222	#else
		223	errno = ENOSYS;
		224	#endif
		225	}
		226
		227	/*****************************************************************************/
96		228
97	enum {	229	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	230	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	231	};
100		232
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	233	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	234	typedef eio_req *aio_req_ornot;
		235	typedef eio_wd aio_wd;
105		236
		237	static SV *on_next_submit;
		238	static int next_pri = EIO_PRI_DEFAULT;
106	static int max_outstanding = 0;	239	static int max_outstanding;
107		240
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	241	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
111		242
112	static void req_destroy (aio_req req);	243	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	244	static void req_cancel (aio_req req);
114		245
115	static void want_poll (void)	246	static void
		247	want_poll (void)
116	{	248	{
117	/* write a dummy byte to the pipe so fh becomes ready */	249	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	250	s_epipe_signal (&respipe);
119	}	251	}
120		252
121	static void done_poll (void)	253	static void
		254	done_poll (void)
122	{	255	{
123	/* read any signals sent by the worker threads */	256	/* read any signals sent by the worker threads */
124	char buf [4];	257	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	258	}
128		259
129	/* must be called at most once */	260	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	261	static SV *
		262	req_sv (aio_req req, HV *stash)
131	{	263	{
132	if (!req->self)	264	if (!req->self)
133	{	265	{
134	req->self = (SV *)newHV ();	266	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	267	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	268	}
137		269
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	270	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	271	}
140		272
141	static aio_req SvAIO_REQ (SV *sv)	273	static SV *
		274	newSVaio_wd (aio_wd wd)
		275	{
		276	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		277	}
		278
		279	static aio_req
		280	SvAIO_REQ (SV *sv)
142	{	281	{
143	MAGIC *mg;	282	MAGIC *mg;
144		283
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	284	if (!SvROK (sv)
		285	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		286	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		287	&& SvSTASH (SvRV (sv)) != aio_req_stash
		288	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	289	croak ("object of class IO::AIO::REQ expected");
147		290
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	291	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		292
150	return mg ? (aio_req)mg->mg_ptr : 0;	293	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	294	}
152		295
		296	static aio_wd
		297	SvAIO_WD (SV *sv)
		298	{
		299	if (!SvROK (sv)
		300	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		301	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		302	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		303
		304	return (aio_wd)(long)SvIVX (SvRV (sv));
		305	}
		306
		307	static void
153	static void aio_grp_feed (aio_req grp)	308	aio_grp_feed (aio_req grp)
154	{	309	{
155	if (grp->sv2 && SvOK (grp->sv2))	310	if (grp->sv2 && SvOK (grp->sv2))
156	{	311	{
157	dSP;	312	dSP;
158		313
159	ENTER;	314	ENTER;
160	SAVETMPS;	315	SAVETMPS;
161	PUSHMARK (SP);	316	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	317	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	318	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	319	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	320	SPAGAIN;
166	FREETMPS;	321	FREETMPS;
167	LEAVE;	322	LEAVE;
168	}	323	}
169	}	324	}
170		325
		326	static void
		327	req_submit (eio_req *req)
		328	{
		329	eio_submit (req);
		330
		331	if (expect_false (on_next_submit))
		332	{
		333	dSP;
		334	SV *cb = sv_2mortal (on_next_submit);
		335
		336	on_next_submit = 0;
		337
		338	PUSHMARK (SP);
		339	PUTBACK;
		340	call_sv (cb, G_DISCARD | G_EVAL);
		341	}
		342	}
		343
		344	static int
171	static int req_invoke (eio_req *req)	345	req_invoke (eio_req *req)
172	{	346	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	347	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	348	SvREADONLY_off (req->sv2);
177		349
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	350	if (!EIO_CANCELLED (req) && req->callback)
179	{	351	{
		352	dSP;
		353	static SV *sv_result_cache; /* caches the result integer SV */
		354	SV *sv_result;
		355
180	ENTER;	356	ENTER;
181	SAVETMPS;	357	SAVETMPS;
182	PUSHMARK (SP);	358	PUSHMARK (SP);
183	EXTEND (SP, 1);	359	EXTEND (SP, 1);
184		360
		361	/* do not recreate the result IV from scratch each time */
		362	if (expect_true (sv_result_cache))
		363	{
		364	sv_result = sv_result_cache; sv_result_cache = 0;
		365	SvIV_set (sv_result, req->result);
		366	SvIOK_only (sv_result);
		367	}
		368	else
		369	{
		370	sv_result = newSViv (req->result);
		371	SvREADONLY_on (sv_result);
		372	}
		373
185	switch (req->type)	374	switch (req->type)
186	{	375	{
		376	case EIO_WD_OPEN:
		377	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		378	break;
		379
187	case EIO_READDIR:	380	case EIO_READDIR:
188	{	381	{
189	SV *rv = &PL_sv_undef;	382	SV *rv = &PL_sv_undef;
190		383
191	if (req->result >= 0)	384	if (req->result >= 0)
192	{	385	{
193	int i;	386	int i;
194	char *buf = req->ptr2;	387	char *names = (char *)req->ptr2;
		388	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
195	AV *av = newAV ();	389	AV *av = newAV ();
196		390
197	av_extend (av, req->result - 1);	391	av_extend (av, req->result - 1);
198		392
199	for (i = 0; i < req->result; ++i)	393	for (i = 0; i < req->result; ++i)
200	{	394	{
201	SV *sv = newSVpv (buf, 0);	395	if (req->int1 & EIO_READDIR_DENTS)
		396	{
		397	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		398
		399	if (req->int1 & EIO_READDIR_CUSTOM2)
		400	{
		401	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		402	AV *avent = newAV ();
		403
		404	av_extend (avent, 2);
		405
		406	if (!sv_type [ent->type])
		407	{
		408	sv_type [ent->type] = newSViv (ent->type);
		409	SvREADONLY_on (sv_type [ent->type]);
		410	}
		411
		412	av_store (avent, 0, namesv);
		413	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		414	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		415
		416	av_store (av, i, newRV_noinc ((SV *)avent));
		417	}
		418	else
203	av_store (av, i, sv);	419	av_store (av, i, namesv);
		420
		421	++ent;
		422	}
		423	else
		424	{
		425	SV *name = newSVpv (names, 0);
		426	av_store (av, i, name);
204	buf += SvCUR (sv) + 1;	427	names += SvCUR (name) + 1;
		428	}
205	}	429	}
206		430
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	431	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	432	}
209		433
210	PUSHs (rv);	434	PUSHs (rv);
		435
		436	if (req->int1 & EIO_READDIR_CUSTOM1)
		437	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
211	}	438	}
212	break;	439	break;
213		440
214	case EIO_OPEN:	441	case EIO_OPEN:
215	{	442	{
…		…
221	GV *gv = (GV *)sv_newmortal ();	448	GV *gv = (GV *)sv_newmortal ();
222	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	449	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223	char sym [64];	450	char sym [64];
224	int symlen;	451	int symlen;
225		452
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	453	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
227	gv_init (gv, stash, sym, symlen, 0);	454	gv_init (gv, aio_stash, sym, symlen, 0);
228		455
229	symlen = snprintf (	456	symlen = snprintf (
230	sym,	457	sym,
231	sizeof (sym),	458	sizeof (sym),
232	"%s&=%d",	459	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	460	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result	461	(int)req->result
235	);	462	);
236		463
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	464	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238	fh = (SV *)gv;	465	fh = (SV *)gv;
239	}	466	}
240		467
241	PUSHs (fh);	468	PUSHs (fh);
242	}	469	}
		470	break;
		471
		472	case EIO_STATVFS:
		473	case EIO_FSTATVFS:
		474	{
		475	SV *rv = &PL_sv_undef;
		476
		477	#ifndef _WIN32
		478	if (req->result >= 0)
		479	{
		480	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		481	HV *hv = newHV ();
		482
		483	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		484
		485	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		486	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		487	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		488	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		489	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		490	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		491	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		492	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		493	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		494	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		495	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		496	}
		497	#endif
		498
		499	PUSHs (rv);
		500	}
		501
243	break;	502	break;
244		503
245	case EIO_GROUP:	504	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	505	req->int1 = 2; /* mark group as finished */
247		506
…		…
259	case EIO_NOP:	518	case EIO_NOP:
260	case EIO_BUSY:	519	case EIO_BUSY:
261	break;	520	break;
262		521
263	case EIO_READLINK:	522	case EIO_READLINK:
		523	case EIO_REALPATH:
264	if (req->result > 0)	524	if (req->result > 0)
265	{	525	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
266	SvCUR_set (req->sv2, req->result);
267	*SvEND (req->sv2) = 0;
268	PUSHs (req->sv2);
269	}
270	break;	526	break;
271		527
272	case EIO_STAT:	528	case EIO_STAT:
273	case EIO_LSTAT:	529	case EIO_LSTAT:
274	case EIO_FSTAT:	530	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	531	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		532
276	PL_laststatval = req->result;	533	if (!(PL_laststatval = req->result))
		534	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
277	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	535	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	536
		537	PUSHs (sv_result);
279	break;	538	break;
280		539
		540	case EIO_SEEK:
		541	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		542	break;
		543
281	case EIO_READ:	544	case EIO_READ:
		545	{
282	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	546	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
283	*SvEND (req->sv2) = 0;	547	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	548	SvPOK_only (req->sv2);
		549	SvSETMAGIC (req->sv2);
		550	PUSHs (sv_result);
		551	}
285	break;	552	break;
286		553
287	case EIO_DUP2:	554	case EIO_CUSTOM:
		555	if (req->feed == fiemap)
		556	{
		557	#if HAVE_FIEMAP
		558	if (!req->result)
		559	{
		560	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		561
		562	if (fiemap->fm_extent_count)
		563	{
		564	AV *av = newAV ();
		565	int i;
		566
		567	while (fiemap->fm_mapped_extents)
		568	{
		569	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		570	AV *ext_av = newAV ();
		571
		572	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		573	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		574	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		575	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		576
		577	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		578	}
		579
		580	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		581	}
		582	else
		583	{
		584	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		585	PUSHs (sv_result);
		586	}
		587	}
		588	#endif
		589	}
		590	else
		591	PUSHs (sv_result);
		592	break;
		593
		594	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
288	if (req->result > 0)	595	if (req->result > 0)
289	req->result = 0;	596	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	597	/* FALLTHROUGH */
291		598
292	default:	599	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	600	PUSHs (sv_result);
294	break;	601	break;
295	}	602	}
296		603
297	errno = req->errorno;	604	errno = req->errorno;
298		605
299	PUTBACK;	606	PUTBACK;
300	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	607	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301	SPAGAIN;	608	SPAGAIN;
302		609
		610	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		611	SvREFCNT_dec (sv_result);
		612	else
		613	sv_result_cache = sv_result;
		614
303	FREETMPS;	615	FREETMPS;
304	LEAVE;	616	LEAVE;
305		617
306	PUTBACK;	618	PUTBACK;
307	}	619	}
308		620
309	return !!SvTRUE (ERRSV);	621	return !!SvTRUE (ERRSV);
310	}	622	}
311		623
		624	static void
312	static void req_destroy (aio_req req)	625	req_destroy (aio_req req)
313	{	626	{
314	if (req->self)	627	if (req->self)
315	{	628	{
316	sv_unmagic (req->self, PERL_MAGIC_ext);	629	sv_unmagic (req->self, PERL_MAGIC_ext);
317	SvREFCNT_dec (req->self);	630	SvREFCNT_dec (req->self);
318	}	631	}
319		632
320	SvREFCNT_dec (req->sv1);	633	SvREFCNT_dec (req->sv1);
321	SvREFCNT_dec (req->sv2);	634	SvREFCNT_dec (req->sv2);
		635	SvREFCNT_dec (req->sv3);
		636	SvREFCNT_dec (req->sv4);
322	SvREFCNT_dec (req->callback);	637	SvREFCNT_dec (req->callback);
323		638
324	Safefree (req);	639	free (req);
325	}	640	}
326		641
		642	static void
327	static void req_cancel_subs (aio_req grp)	643	req_cancel_subs (aio_req grp)
328	{	644	{
329	aio_req sub;
330
331	if (grp->type != EIO_GROUP)	645	if (grp->type != EIO_GROUP)
332	return;	646	return;
333		647
334	SvREFCNT_dec (grp->sv2);	648	SvREFCNT_dec (grp->sv2);
335	grp->sv2 = 0;	649	grp->sv2 = 0;
336		650
337	eio_grp_cancel (grp);	651	eio_grp_cancel (grp);
338	}	652	}
339		653
340	#ifdef USE_SOCKETS_AS_HANDLES	654	static void ecb_cold
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))	655	create_respipe (void)
342	#else	656	{
343	# define TO_SOCKET(x) (x)	657	if (s_epipe_renew (&respipe))
344	#endif	658	croak ("IO::AIO: unable to initialize result pipe");
		659	}
345		660
346	static void	661	static void
347	create_respipe (void)	662	poll_wait (void)
348	{	663	{
349	int old_readfd = respipe [0];
350
351	if (respipe [1] >= 0)
352	respipe_close (TO_SOCKET (respipe [1]));
353
354	#ifdef _WIN32
355	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
356	#else
357	if (pipe (respipe))
358	#endif
359	croak ("unable to initialize result pipe");
360
361	if (old_readfd >= 0)
362	{
363	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
364	croak ("unable to initialize result pipe(2)");
365
366	respipe_close (respipe [0]);
367	respipe [0] = old_readfd;
368	}
369
370	#ifdef _WIN32
371	int arg = 1;
372	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
373	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
374	#else
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
376	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
377	#endif
378	croak ("unable to initialize result pipe(3)");
379
380	respipe_osf [0] = TO_SOCKET (respipe [0]);
381	respipe_osf [1] = TO_SOCKET (respipe [1]);
382	}
383
384	static void poll_wait (void)
385	{
386	fd_set rfd;
387
388	while (eio_nreqs ())	664	while (eio_nreqs ())
389	{	665	{
390	int size;	666	int size;
391		667
392	X_LOCK (reslock);	668	X_LOCK (reslock);
…		…
394	X_UNLOCK (reslock);	670	X_UNLOCK (reslock);
395		671
396	if (size)	672	if (size)
397	return;	673	return;
398		674
399	maybe_start_thread ();	675	etp_maybe_start_thread ();
400		676
401	FD_ZERO (&rfd);	677	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	678	}
406	}	679	}
407		680
408	static int poll_cb (void)	681	static int
		682	poll_cb (void)
409	{	683	{
410	int res;	684	for (;;)
411
412	do
413	{	685	{
414	res = eio_poll ();	686	int res = eio_poll ();
415		687
416	if (res > 0)	688	if (res > 0)
417	croak (0);	689	croak (0);
		690
		691	if (!max_outstanding || max_outstanding > eio_nreqs ())
		692	return res;
		693
		694	poll_wait ();
418	}	695	}
419	while (max_outstanding && max_outstanding <= eio_nreqs ());
420
421	return res;
422	}	696	}
423		697
424	static void atfork_child (void)	698	static void ecb_cold
		699	reinit (void)
425	{	700	{
426	create_respipe ();	701	create_respipe ();
		702
		703	if (eio_init (want_poll, done_poll) < 0)
		704	croak ("IO::AIO: unable to initialise eio library");
		705	}
		706
		707	/*****************************************************************************/
		708
		709	#if !_POSIX_MAPPED_FILES
		710	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		711	# define munmap(addr,length) EIO_ENOSYS ()
		712	#endif
		713
		714	#if !_POSIX_MEMORY_PROTECTION
		715	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		716	# define PROT_NONE 0
		717	# define PROT_WRITE 0
		718	# define MAP_PRIVATE 0
		719	# define MAP_SHARED 0
		720	# define MAP_FIXED 0
		721	#endif
		722
		723	#define MMAP_MAGIC PERL_MAGIC_ext
		724
		725	static int ecb_cold
		726	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		727	{
		728	int old_errno = errno;
		729	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		730	errno = old_errno;
		731
		732	mg->mg_obj = 0; /* just in case */
		733
		734	SvREADONLY_off (sv);
		735
		736	if (SvPVX (sv) != mg->mg_ptr)
		737	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		738
		739	SvCUR_set (sv, 0);
		740	SvPVX (sv) = 0;
		741	SvOK_off (sv);
		742
		743	return 0;
		744	}
		745
		746	static MGVTBL mmap_vtbl = {
		747	0, 0, 0, 0, mmap_free
		748	};
		749
		750	/*****************************************************************************/
		751
		752	static SV *
		753	get_cb (SV *cb_sv)
		754	{
		755	SvGETMAGIC (cb_sv);
		756	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		757	}
		758
		759	static aio_req ecb_noinline
		760	dreq (SV *callback)
		761	{
		762	SV *cb_cv;
		763	aio_req req;
		764	int req_pri = next_pri;
		765	next_pri = EIO_PRI_DEFAULT;
		766
		767	cb_cv = get_cb (callback);
		768
		769	req = calloc (sizeof (*req), 1);
		770	if (!req)
		771	croak ("out of memory during eio_req allocation");
		772
		773	req->callback = SvREFCNT_inc (cb_cv);
		774	req->pri = req_pri;
		775
		776	return req;
427	}	777	}
428		778
429	#define dREQ \	779	#define dREQ \
430	aio_req req; \	780	aio_req req = dreq (callback); \
431	int req_pri = next_pri; \
432	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
433	\
434	if (SvOK (callback) && !SvROK (callback)) \
435	croak ("callback must be undef or of reference type"); \
436	\
437	Newz (0, req, 1, eio_req); \
438	if (!req) \
439	croak ("out of memory during eio_req allocation"); \
440	\
441	req->callback = newSVsv (callback); \
442	req->pri = req_pri
443		781
444	#define REQ_SEND \	782	#define REQ_SEND \
		783	PUTBACK; \
445	eio_submit (req); \	784	req_submit (req); \
		785	SPAGAIN; \
446	\	786	\
447	if (GIMME_V != G_VOID) \	787	if (GIMME_V != G_VOID) \
448	XPUSHs (req_sv (req, AIO_REQ_KLASS));	788	XPUSHs (req_sv (req, aio_req_stash));
449		789
		790	ecb_inline void
		791	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		792	{
		793	if (expect_false (SvROK (path)))
		794	{
		795	SV *rv = SvRV (path);
		796	SV *wdob;
		797
		798	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		799	{
		800	path = AvARRAY (rv)[1];
		801	wdob = AvARRAY (rv)[0];
		802
		803	if (SvOK (wdob))
		804	{
		805	*wd = SvAIO_WD (wdob);
		806	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		807	}
		808	else
		809	*wd = EIO_INVALID_WD;
		810	}
		811	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		812	{
		813	*wd = (aio_wd)(long)SvIVX (rv);
		814	*wdsv = SvREFCNT_inc_NN (rv);
		815	*ptr = ".";
		816	return; /* path set to "." */
		817	}
		818	else
		819	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		820	}
		821
		822	*pathsv = newSVsv (path);
		823	*ptr = SvPVbyte_nolen (*pathsv);
		824	}
		825
		826	static void ecb_noinline
		827	req_set_path1 (aio_req req, SV *path)
		828	{
		829	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		830	}
		831
		832	static void ecb_noinline
		833	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		834	{
		835	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		836
		837	switch (SvTYPE (rv))
		838	{
		839	case SVt_PVIO:
		840	case SVt_PVLV:
		841	case SVt_PVGV:
		842	req->type = type_fh;
		843	req->sv1 = newSVsv (fh_or_path);
		844	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		845	break;
		846
		847	default:
		848	req->type = type_path;
		849	req_set_path1 (req, fh_or_path);
		850	break;
		851	}
		852	}
		853
		854	XS(boot_IO__AIO) ecb_cold;
		855
450	MODULE = IO::AIO PACKAGE = IO::AIO	856	MODULE = IO::AIO PACKAGE = IO::AIO
451		857
452	PROTOTYPES: ENABLE	858	PROTOTYPES: ENABLE
453		859
454	BOOT:	860	BOOT:
455	{	861	{
		862	static const struct {
		863	const char *name;
		864	IV iv;
		865	} *civ, const_iv[] = {
		866	# define const_niv(name, value) { # name, (IV) value },
		867	# define const_iv(name) { # name, (IV) name },
		868	# define const_eio(name) { # name, (IV) EIO_ ## name },
		869
		870	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		871
		872	const_iv (ENOSYS)
		873	const_iv (EXDEV)
		874	const_iv (EBADR)
		875
		876	const_iv (O_RDONLY)
		877	const_iv (O_WRONLY)
		878	const_iv (O_RDWR)
		879	const_iv (O_CREAT)
		880	const_iv (O_TRUNC)
		881	const_iv (O_EXCL)
		882	const_iv (O_APPEND)
		883
		884	const_iv (O_ASYNC)
		885	const_iv (O_DIRECT)
		886	const_iv (O_NOATIME)
		887
		888	const_iv (O_CLOEXEC)
		889	const_iv (O_NOCTTY)
		890	const_iv (O_NOFOLLOW)
		891	const_iv (O_NONBLOCK)
		892	const_iv (O_EXEC)
		893	const_iv (O_SEARCH)
		894	const_iv (O_DIRECTORY)
		895	const_iv (O_DSYNC)
		896	const_iv (O_RSYNC)
		897	const_iv (O_SYNC)
		898	const_iv (O_TTY_INIT)
		899
		900	const_iv (S_IFIFO)
		901	const_iv (S_IFCHR)
		902	const_iv (S_IFBLK)
		903	const_iv (S_IFLNK)
		904	const_iv (S_IFREG)
		905	const_iv (S_IFDIR)
		906	const_iv (S_IFWHT)
		907	const_iv (S_IFSOCK)
		908	const_iv (S_IFMT)
		909
		910	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		911	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		912	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		913	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		914	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		915	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		916
		917	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		918	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		919	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		920	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		921	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		922
		923	const_iv (ST_RDONLY)
		924	const_iv (ST_NOSUID)
		925	const_iv (ST_NODEV)
		926	const_iv (ST_NOEXEC)
		927	const_iv (ST_SYNCHRONOUS)
		928	const_iv (ST_MANDLOCK)
		929	const_iv (ST_WRITE)
		930	const_iv (ST_APPEND)
		931	const_iv (ST_IMMUTABLE)
		932	const_iv (ST_NOATIME)
		933	const_iv (ST_NODIRATIME)
		934	const_iv (ST_RELATIME)
		935
		936	const_iv (PROT_NONE)
		937	const_iv (PROT_EXEC)
		938	const_iv (PROT_READ)
		939	const_iv (PROT_WRITE)
		940
		941	/*const_iv (MAP_FIXED)*/
		942	const_iv (MAP_PRIVATE)
		943	const_iv (MAP_SHARED)
		944	const_iv (MAP_ANONYMOUS)
		945
		946	/* linuxish */
		947	const_iv (MAP_HUGETLB)
		948	const_iv (MAP_LOCKED)
		949	const_iv (MAP_NORESERVE)
		950	const_iv (MAP_POPULATE)
		951	const_iv (MAP_NONBLOCK)
		952
		953	const_iv (FIEMAP_FLAG_SYNC)
		954	const_iv (FIEMAP_FLAG_XATTR)
		955	const_iv (FIEMAP_FLAGS_COMPAT)
		956	const_iv (FIEMAP_EXTENT_LAST)
		957	const_iv (FIEMAP_EXTENT_UNKNOWN)
		958	const_iv (FIEMAP_EXTENT_DELALLOC)
		959	const_iv (FIEMAP_EXTENT_ENCODED)
		960	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		961	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		962	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		963	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		964	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		965	const_iv (FIEMAP_EXTENT_MERGED)
		966	const_iv (FIEMAP_EXTENT_SHARED)
		967
		968	const_iv (SPLICE_F_MOVE)
		969	const_iv (SPLICE_F_NONBLOCK)
		970	const_iv (SPLICE_F_MORE)
		971	const_iv (SPLICE_F_GIFT)
		972
		973	const_iv (SEEK_DATA)
		974	const_iv (SEEK_HOLE)
		975
		976	/* libeio constants */
		977	const_eio (SEEK_SET)
		978	const_eio (SEEK_CUR)
		979	const_eio (SEEK_END)
		980
		981	const_eio (MCL_FUTURE)
		982	const_eio (MCL_CURRENT)
		983
		984	const_eio (MS_ASYNC)
		985	const_eio (MS_INVALIDATE)
		986	const_eio (MS_SYNC)
		987
		988	const_eio (MT_MODIFY)
		989
		990	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		991	const_eio (SYNC_FILE_RANGE_WRITE)
		992	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		993
		994	const_eio (FALLOC_FL_KEEP_SIZE)
		995	const_eio (FALLOC_FL_PUNCH_HOLE)
		996
		997	const_eio (READDIR_DENTS)
		998	const_eio (READDIR_DIRS_FIRST)
		999	const_eio (READDIR_STAT_ORDER)
		1000	const_eio (READDIR_FOUND_UNKNOWN)
		1001
		1002	const_eio (DT_UNKNOWN)
		1003	const_eio (DT_FIFO)
		1004	const_eio (DT_CHR)
		1005	const_eio (DT_DIR)
		1006	const_eio (DT_BLK)
		1007	const_eio (DT_REG)
		1008	const_eio (DT_LNK)
		1009	const_eio (DT_SOCK)
		1010	const_eio (DT_WHT)
		1011	};
		1012
456	stash = gv_stashpv ("IO::AIO", 1);	1013	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1014	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1015	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1016	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
457		1017
458	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1018	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
459	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1019	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
460	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
461	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
462	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
463	#ifdef _WIN32
464	X_MUTEX_CHECK (wrklock);
465	X_MUTEX_CHECK (reslock);
466	X_MUTEX_CHECK (reqlock);
467	X_MUTEX_CHECK (reqwait);
468	X_MUTEX_CHECK (preadwritelock);
469	X_MUTEX_CHECK (readdirlock);
470		1020
471	X_COND_CHECK (reqwait);	1021	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
472	#else
473	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
474	#endif
475		1022
476	create_respipe ();	1023	reinit ();
477
478	if (eio_init (want_poll, done_poll) < 0)
479	croak ("IO::AIO: unable to initialise eio library");
480
481	/* atfork child called in fifo order, so before eio's handler */
482	X_THREAD_ATFORK (0, 0, atfork_child);
483	}	1024	}
484		1025
485	void	1026	void
		1027	reinit ()
		1028	PROTOTYPE:
		1029
		1030	void
486	max_poll_reqs (int nreqs)	1031	max_poll_reqs (unsigned int nreqs)
487	PROTOTYPE: $	1032	PROTOTYPE: $
488	CODE:	1033	CODE:
489	eio_set_max_poll_reqs (nreqs);	1034	eio_set_max_poll_reqs (nreqs);
490		1035
491	void	1036	void
…		…
493	PROTOTYPE: $	1038	PROTOTYPE: $
494	CODE:	1039	CODE:
495	eio_set_max_poll_time (nseconds);	1040	eio_set_max_poll_time (nseconds);
496		1041
497	void	1042	void
498	min_parallel (int nthreads)	1043	min_parallel (unsigned int nthreads)
499	PROTOTYPE: $	1044	PROTOTYPE: $
500	CODE:	1045	CODE:
501	eio_set_min_parallel (nthreads);	1046	eio_set_min_parallel (nthreads);
502		1047
503	void	1048	void
504	max_parallel (int nthreads)	1049	max_parallel (unsigned int nthreads)
505	PROTOTYPE: $	1050	PROTOTYPE: $
506	CODE:	1051	CODE:
507	eio_set_max_parallel (nthreads);	1052	eio_set_max_parallel (nthreads);
508		1053
509	void	1054	void
510	max_idle (int nthreads)	1055	max_idle (unsigned int nthreads)
511	PROTOTYPE: $	1056	PROTOTYPE: $
512	CODE:	1057	CODE:
513	eio_set_max_idle (nthreads);	1058	eio_set_max_idle (nthreads);
514		1059
515	void	1060	void
		1061	idle_timeout (unsigned int seconds)
		1062	PROTOTYPE: $
		1063	CODE:
		1064	eio_set_idle_timeout (seconds);
		1065
		1066	void
516	max_outstanding (int maxreqs)	1067	max_outstanding (unsigned int maxreqs)
517	PROTOTYPE: $	1068	PROTOTYPE: $
518	CODE:	1069	CODE:
519	max_outstanding = maxreqs;	1070	max_outstanding = maxreqs;
520		1071
521	void	1072	void
		1073	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1074	PPCODE:
		1075	{
		1076	dREQ;
		1077
		1078	req->type = EIO_WD_OPEN;
		1079	req_set_path1 (req, pathname);
		1080
		1081	REQ_SEND;
		1082	}
		1083
		1084	void
522	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1085	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
523	PROTOTYPE: $$$;$
524	PPCODE:	1086	PPCODE:
525	{	1087	{
526	dREQ;	1088	dREQ;
527		1089
528	req->type = EIO_OPEN;	1090	req->type = EIO_OPEN;
529	req->sv1 = newSVsv (pathname);	1091	req_set_path1 (req, pathname);
530	req->ptr1 = SvPVbyte_nolen (req->sv1);
531	req->int1 = flags;	1092	req->int1 = flags;
532	req->int2 = mode;	1093	req->int2 = mode;
533		1094
534	REQ_SEND;	1095	REQ_SEND;
535	}	1096	}
536		1097
537	void	1098	void
538	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1099	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $;$
540	ALIAS:	1100	ALIAS:
541	aio_fsync = EIO_FSYNC	1101	aio_fsync = EIO_FSYNC
542	aio_fdatasync = EIO_FDATASYNC	1102	aio_fdatasync = EIO_FDATASYNC
		1103	aio_syncfs = EIO_SYNCFS
543	PPCODE:	1104	PPCODE:
544	{	1105	{
		1106	int fd = s_fileno_croak (fh, 0);
545	dREQ;	1107	dREQ;
546		1108
547	req->type = ix;	1109	req->type = ix;
548	req->sv1 = newSVsv (fh);	1110	req->sv1 = newSVsv (fh);
549	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1111	req->int1 = fd;
550		1112
551	REQ_SEND (req);	1113	REQ_SEND;
		1114	}
		1115
		1116	void
		1117	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1118	PPCODE:
		1119	{
		1120	int fd = s_fileno_croak (fh, 0);
		1121	dREQ;
		1122
		1123	req->type = EIO_SYNC_FILE_RANGE;
		1124	req->sv1 = newSVsv (fh);
		1125	req->int1 = fd;
		1126	req->offs = offset;
		1127	req->size = nbytes;
		1128	req->int2 = flags;
		1129
		1130	REQ_SEND;
		1131	}
		1132
		1133	void
		1134	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1135	PPCODE:
		1136	{
		1137	int fd = s_fileno_croak (fh, 0);
		1138	dREQ;
		1139
		1140	req->type = EIO_FALLOCATE;
		1141	req->sv1 = newSVsv (fh);
		1142	req->int1 = fd;
		1143	req->int2 = mode;
		1144	req->offs = offset;
		1145	req->size = len;
		1146
		1147	REQ_SEND;
552	}	1148	}
553		1149
554	void	1150	void
555	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1151	aio_close (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	PPCODE:	1152	PPCODE:
558	{	1153	{
559	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1154	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1155	int fd = s_fileno_croak (fh, 0);
560	dREQ;	1156	dREQ;
561		1157
562	if (close_pipe < 0)	1158	if (expect_false (close_fd < 0))
563	{	1159	{
564	int pipefd [2];	1160	int pipefd [2];
565		1161
		1162	if (
		1163	#ifdef _WIN32
		1164	_pipe (pipefd, 1, _O_BINARY) < 0
		1165	#else
566	if (pipe (pipefd) < 0	1166	pipe (pipefd) < 0
567	|| close (pipefd [1]) < 0
568	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1167	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1168	#endif
		1169	|| close (pipefd [1]) < 0
		1170	)
569	abort (); /*D*/	1171	abort (); /*D*/
570		1172
571	close_pipe = pipefd [0];	1173	close_fd = pipefd [0];
572	}	1174	}
573		1175
574	req->type = EIO_DUP2;	1176	req->type = EIO_DUP2;
575	req->int1 = close_pipe;	1177	req->int1 = close_fd;
576	req->sv2 = newSVsv (fh);	1178	req->sv2 = newSVsv (fh);
577	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1179	req->int2 = fd;
578		1180
579	REQ_SEND (req);	1181	REQ_SEND;
		1182	}
		1183
		1184	void
		1185	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1186	PPCODE:
		1187	{
		1188	int fd = s_fileno_croak (fh, 0);
		1189	dREQ;
		1190
		1191	req->type = EIO_SEEK;
		1192	req->sv1 = newSVsv (fh);
		1193	req->int1 = fd;
		1194	req->offs = SvVAL64 (offset);
		1195	req->int2 = whence;
		1196
		1197	REQ_SEND;
580	}	1198	}
581		1199
582	void	1200	void
583	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1201	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
584	ALIAS:	1202	ALIAS:
585	aio_read = EIO_READ	1203	aio_read = EIO_READ
586	aio_write = EIO_WRITE	1204	aio_write = EIO_WRITE
587	PROTOTYPE: $$$$$;$
588	PPCODE:	1205	PPCODE:
589	{	1206	{
590	STRLEN svlen;	1207	STRLEN svlen;
		1208	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
591	char *svptr = SvPVbyte (data, svlen);	1209	char *svptr = SvPVbyte (data, svlen);
592	UV len = SvUV (length);	1210	UV len = SvUV (length);
593
594	SvUPGRADE (data, SVt_PV);
595	SvPOK_on (data);
596		1211
597	if (dataoffset < 0)	1212	if (dataoffset < 0)
598	dataoffset += svlen;	1213	dataoffset += svlen;
599		1214
600	if (dataoffset < 0 || dataoffset > svlen)	1215	if (dataoffset < 0 || dataoffset > svlen)
…		…
606	if (!SvOK (length) || len + dataoffset > svlen)	1221	if (!SvOK (length) || len + dataoffset > svlen)
607	len = svlen - dataoffset;	1222	len = svlen - dataoffset;
608	}	1223	}
609	else	1224	else
610	{	1225	{
611	/* read: grow scalar as necessary */	1226	/* read: check type and grow scalar as necessary */
		1227	SvUPGRADE (data, SVt_PV);
		1228	if (SvLEN (data) >= SvCUR (data))
612	svptr = SvGROW (data, len + dataoffset + 1);	1229	svptr = SvGROW (data, len + dataoffset + 1);
		1230	else if (SvCUR (data) < len + dataoffset)
		1231	croak ("length + dataoffset outside of scalar, and cannot grow");
613	}	1232	}
614
615	if (len < 0)
616	croak ("length must not be negative");
617		1233
618	{	1234	{
619	dREQ;	1235	dREQ;
620		1236
621	req->type = ix;	1237	req->type = ix;
622	req->sv1 = newSVsv (fh);	1238	req->sv1 = newSVsv (fh);
623	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1239	req->int1 = fd;
624	: IoOFP (sv_2io (fh)));
625	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1240	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
626	req->size = len;	1241	req->size = len;
627	req->sv2 = SvREFCNT_inc (data);	1242	req->sv2 = SvREFCNT_inc (data);
628	req->ptr2 = (char *)svptr + dataoffset;	1243	req->ptr2 = (char *)svptr + dataoffset;
629	req->stroffset = dataoffset;	1244	req->stroffset = dataoffset;
…		…
637	REQ_SEND;	1252	REQ_SEND;
638	}	1253	}
639	}	1254	}
640		1255
641	void	1256	void
642	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1257	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
643	PROTOTYPE: $$;$	1258	ALIAS:
		1259	aio_readlink = EIO_READLINK
		1260	aio_realpath = EIO_REALPATH
644	PPCODE:	1261	PPCODE:
645	{	1262	{
646	SV *data;
647	dREQ;	1263	dREQ;
648		1264
649	data = newSV (NAME_MAX);
650	SvPOK_on (data);
651
652	req->type = EIO_READLINK;	1265	req->type = ix;
653	req->sv1 = newSVsv (path);	1266	req_set_path1 (req, pathname);
654	req->ptr1 = SvPVbyte_nolen (req->sv1);
655	req->sv2 = data;
656	req->ptr2 = SvPVbyte_nolen (data);
657		1267
658	REQ_SEND;	1268	REQ_SEND;
659	}	1269	}
660		1270
661	void	1271	void
662	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1272	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$$$;$
664	PPCODE:	1273	PPCODE:
665	{	1274	{
		1275	int ifd = s_fileno_croak (in_fh , 0);
		1276	int ofd = s_fileno_croak (out_fh, 1);
666	dREQ;	1277	dREQ;
667		1278
668	req->type = EIO_SENDFILE;	1279	req->type = EIO_SENDFILE;
669	req->sv1 = newSVsv (out_fh);	1280	req->sv1 = newSVsv (out_fh);
670	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1281	req->int1 = ofd;
671	req->sv2 = newSVsv (in_fh);	1282	req->sv2 = newSVsv (in_fh);
672	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1283	req->int2 = ifd;
673	req->offs = SvVAL64 (in_offset);	1284	req->offs = in_offset;
674	req->size = length;	1285	req->size = length;
675		1286
676	REQ_SEND;	1287	REQ_SEND;
677	}	1288	}
678		1289
679	void	1290	void
680	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1291	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
681	PROTOTYPE: $$$;$
682	PPCODE:	1292	PPCODE:
683	{	1293	{
		1294	int fd = s_fileno_croak (fh, 0);
684	dREQ;	1295	dREQ;
685		1296
686	req->type = EIO_READAHEAD;	1297	req->type = EIO_READAHEAD;
687	req->sv1 = newSVsv (fh);	1298	req->sv1 = newSVsv (fh);
688	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1299	req->int1 = fd;
689	req->offs = SvVAL64 (offset);	1300	req->offs = offset;
690	req->size = length;	1301	req->size = length;
691		1302
692	REQ_SEND;	1303	REQ_SEND;
693	}	1304	}
694		1305
695	void	1306	void
696	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1307	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
697	ALIAS:	1308	ALIAS:
698	aio_stat = EIO_STAT	1309	aio_stat = EIO_STAT
699	aio_lstat = EIO_LSTAT	1310	aio_lstat = EIO_LSTAT
		1311	aio_statvfs = EIO_STATVFS
700	PPCODE:	1312	PPCODE:
701	{	1313	{
702	dREQ;	1314	dREQ;
703		1315
704	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1316	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
705	if (!req->ptr2)
706	{
707	req_destroy (req);
708	croak ("out of memory during aio_stat statdata allocation");
709	}
710
711	req->flags |= EIO_FLAG_PTR2_FREE;
712	req->sv1 = newSVsv (fh_or_path);
713
714	if (SvPOK (fh_or_path))
715	{
716	req->type = ix;
717	req->ptr1 = SvPVbyte_nolen (req->sv1);
718	}
719	else
720	{
721	req->type = EIO_FSTAT;
722	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
723	}
724		1317
725	REQ_SEND;	1318	REQ_SEND;
726	}	1319	}
		1320
		1321	UV
		1322	major (UV dev)
		1323	ALIAS:
		1324	minor = 1
		1325	CODE:
		1326	RETVAL = ix ? major (dev) : minor (dev);
		1327	OUTPUT:
		1328	RETVAL
		1329
		1330	UV
		1331	makedev (UV maj, UV min)
		1332	CODE:
		1333	RETVAL = makedev (maj, min);
		1334	OUTPUT:
		1335	RETVAL
727		1336
728	void	1337	void
729	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1338	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
730	PPCODE:	1339	PPCODE:
731	{	1340	{
732	dREQ;	1341	dREQ;
733		1342
734	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1343	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
735	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1344	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
736	req->sv1 = newSVsv (fh_or_path);	1345	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
737
738	if (SvPOK (fh_or_path))
739	{
740	req->type = EIO_UTIME;
741	req->ptr1 = SvPVbyte_nolen (req->sv1);
742	}
743	else
744	{
745	req->type = EIO_FUTIME;
746	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
747	}
748		1346
749	REQ_SEND;	1347	REQ_SEND;
750	}	1348	}
751		1349
752	void	1350	void
753	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1351	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
754	PPCODE:	1352	PPCODE:
755	{	1353	{
756	dREQ;	1354	dREQ;
757		1355
758	req->sv1 = newSVsv (fh_or_path);
759	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1356	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
760		1357	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
761	if (SvPOK (fh_or_path))
762	{
763	req->type = EIO_TRUNCATE;
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765	}
766	else
767	{
768	req->type = EIO_FTRUNCATE;
769	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
770	}
771		1358
772	REQ_SEND;	1359	REQ_SEND;
773	}	1360	}
774		1361
775	void	1362	void
776	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1363	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
777	ALIAS:
778	aio_chmod = EIO_CHMOD
779	aio_fchmod = EIO_FCHMOD
780	aio_mkdir = EIO_MKDIR
781	PPCODE:	1364	PPCODE:
782	{	1365	{
783	dREQ;	1366	dREQ;
784		1367
785	req->type = ix;
786	req->int2 = mode;	1368	req->int2 = mode;
787	req->sv1 = newSVsv (fh_or_path);	1369	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
788
789	if (ix == EIO_FCHMOD)
790	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
791	else
792	req->ptr1 = SvPVbyte_nolen (req->sv1);
793		1370
794	REQ_SEND;	1371	REQ_SEND;
795	}	1372	}
796		1373
797	void	1374	void
…		…
800	{	1377	{
801	dREQ;	1378	dREQ;
802		1379
803	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1380	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1381	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805	req->sv1 = newSVsv (fh_or_path);	1382	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
806		1383
807	if (SvPOK (fh_or_path))	1384	REQ_SEND;
808	{	1385	}
		1386
		1387	void
		1388	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1389	PPCODE:
		1390	{
		1391	dREQ;
		1392
		1393	req->type = EIO_READDIR;
		1394	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1395
		1396	if (flags & EIO_READDIR_DENTS)
		1397	req->int1 |= EIO_READDIR_CUSTOM2;
		1398
		1399	req_set_path1 (req, pathname);
		1400
		1401	REQ_SEND;
		1402	}
		1403
		1404	void
		1405	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1406	PPCODE:
		1407	{
		1408	dREQ;
		1409
809	req->type = EIO_CHOWN;	1410	req->type = EIO_MKDIR;
810	req->ptr1 = SvPVbyte_nolen (req->sv1);	1411	req->int2 = mode;
811	}	1412	req_set_path1 (req, pathname);
812	else
813	{
814	req->type = EIO_FCHOWN;
815	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
816	}
817		1413
818	REQ_SEND;	1414	REQ_SEND;
819	}	1415	}
820		1416
821	void	1417	void
…		…
827	PPCODE:	1423	PPCODE:
828	{	1424	{
829	dREQ;	1425	dREQ;
830		1426
831	req->type = ix;	1427	req->type = ix;
832	req->sv1 = newSVsv (pathname);	1428	req_set_path1 (req, pathname);
833	req->ptr1 = SvPVbyte_nolen (req->sv1);
834		1429
835	REQ_SEND;	1430	REQ_SEND;
836	}	1431	}
837		1432
838	void	1433	void
…		…
841	aio_link = EIO_LINK	1436	aio_link = EIO_LINK
842	aio_symlink = EIO_SYMLINK	1437	aio_symlink = EIO_SYMLINK
843	aio_rename = EIO_RENAME	1438	aio_rename = EIO_RENAME
844	PPCODE:	1439	PPCODE:
845	{	1440	{
		1441	eio_wd wd2 = 0;
846	dREQ;	1442	dREQ;
847		1443
848	req->type = ix;	1444	req->type = ix;
849	req->sv1 = newSVsv (oldpath);	1445	req_set_path1 (req, oldpath);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);	1446	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
851	req->sv2 = newSVsv (newpath);	1447	req->int3 = (long)wd2;
852	req->ptr2 = SvPVbyte_nolen (req->sv2);
853		1448
854	REQ_SEND;	1449	REQ_SEND;
855	}	1450	}
856		1451
857	void	1452	void
…		…
859	PPCODE:	1454	PPCODE:
860	{	1455	{
861	dREQ;	1456	dREQ;
862		1457
863	req->type = EIO_MKNOD;	1458	req->type = EIO_MKNOD;
864	req->sv1 = newSVsv (pathname);
865	req->ptr1 = SvPVbyte_nolen (req->sv1);
866	req->int2 = (mode_t)mode;	1459	req->int2 = (mode_t)mode;
867	req->offs = dev;	1460	req->offs = dev;
		1461	req_set_path1 (req, pathname);
868		1462
869	REQ_SEND;	1463	REQ_SEND;
870	}	1464	}
871		1465
872	void	1466	void
		1467	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1468	ALIAS:
		1469	aio_mtouch = EIO_MTOUCH
		1470	aio_msync = EIO_MSYNC
		1471	PPCODE:
		1472	{
		1473	STRLEN svlen;
		1474	char *svptr = SvPVbyte (data, svlen);
		1475	UV len = SvUV (length);
		1476
		1477	if (offset < 0)
		1478	offset += svlen;
		1479
		1480	if (offset < 0 || offset > svlen)
		1481	croak ("offset outside of scalar");
		1482
		1483	if (!SvOK (length) || len + offset > svlen)
		1484	len = svlen - offset;
		1485
		1486	{
		1487	dREQ;
		1488
		1489	req->type = ix;
		1490	req->sv2 = SvREFCNT_inc (data);
		1491	req->ptr2 = (char *)svptr + offset;
		1492	req->size = len;
		1493	req->int1 = flags;
		1494
		1495	REQ_SEND;
		1496	}
		1497	}
		1498
		1499	void
		1500	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1501	PPCODE:
		1502	{
		1503	STRLEN svlen;
		1504	char *svptr = SvPVbyte (data, svlen);
		1505	UV len = SvUV (length);
		1506
		1507	if (offset < 0)
		1508	offset += svlen;
		1509
		1510	if (offset < 0 || offset > svlen)
		1511	croak ("offset outside of scalar");
		1512
		1513	if (!SvOK (length) || len + offset > svlen)
		1514	len = svlen - offset;
		1515
		1516	{
		1517	dREQ;
		1518
		1519	req->type = EIO_MLOCK;
		1520	req->sv2 = SvREFCNT_inc (data);
		1521	req->ptr2 = (char *)svptr + offset;
		1522	req->size = len;
		1523
		1524	REQ_SEND;
		1525	}
		1526	}
		1527
		1528	void
		1529	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1530	PPCODE:
		1531	{
		1532	dREQ;
		1533
		1534	req->type = EIO_MLOCKALL;
		1535	req->int1 = flags;
		1536
		1537	REQ_SEND;
		1538	}
		1539
		1540	void
		1541	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1542	PPCODE:
		1543	{
		1544	int fd = s_fileno_croak (fh, 0);
		1545	dREQ;
		1546
		1547	req->type = EIO_CUSTOM;
		1548	req->sv1 = newSVsv (fh);
		1549	req->int1 = fd;
		1550
		1551	req->feed = fiemap;
		1552	#if HAVE_FIEMAP
		1553	/* keep our fingers crossed that the next two types are 64 bit */
		1554	req->offs = start;
		1555	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1556	req->int2 = flags;
		1557	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1558	#endif
		1559
		1560	REQ_SEND;
		1561	}
		1562
		1563	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1564	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1565	PPCODE:
875	{	1566	{
876	dREQ;	1567	dREQ;
877		1568
…		…
881	REQ_SEND;	1572	REQ_SEND;
882	}	1573	}
883		1574
884	void	1575	void
885	aio_group (SV *callback=&PL_sv_undef)	1576	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1577	PPCODE:
888	{	1578	{
889	dREQ;	1579	dREQ;
890		1580
891	req->type = EIO_GROUP;	1581	req->type = EIO_GROUP;
892		1582
893	eio_submit (req);	1583	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1584	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1585	}
896		1586
897	void	1587	void
898	aio_nop (SV *callback=&PL_sv_undef)	1588	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1589	ALIAS:
…		…
908	REQ_SEND;	1598	REQ_SEND;
909	}	1599	}
910		1600
911	int	1601	int
912	aioreq_pri (int pri = 0)	1602	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1603	CODE:
915	RETVAL = next_pri - EIO_PRI_BIAS;	1604	RETVAL = next_pri;
916	if (items > 0)	1605	if (items > 0)
917	{	1606	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1607	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
919	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1608	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
920	next_pri = pri + EIO_PRI_BIAS;	1609	next_pri = pri;
921	}	1610	}
922	OUTPUT:	1611	OUTPUT:
923	RETVAL	1612	RETVAL
924		1613
925	void	1614	void
926	aioreq_nice (int nice = 0)	1615	aioreq_nice (int nice = 0)
927	CODE:	1616	CODE:
928	nice = next_pri - nice;	1617	nice = next_pri - nice;
929	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1618	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1619	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice + EIO_PRI_BIAS;	1620	next_pri = nice;
932		1621
933	void	1622	void
934	flush ()	1623	flush ()
935	PROTOTYPE:
936	CODE:	1624	CODE:
937	while (eio_nreqs ())	1625	while (eio_nreqs ())
938	{	1626	{
939	poll_wait ();	1627	poll_wait ();
940	poll_cb ();	1628	poll_cb ();
941	}	1629	}
942		1630
943	int	1631	int
944	poll()	1632	poll ()
945	PROTOTYPE:
946	CODE:	1633	CODE:
947	poll_wait ();	1634	poll_wait ();
948	RETVAL = poll_cb ();	1635	RETVAL = poll_cb ();
949	OUTPUT:	1636	OUTPUT:
950	RETVAL	1637	RETVAL
951		1638
952	int	1639	int
953	poll_fileno()	1640	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1641	CODE:
956	RETVAL = respipe [0];	1642	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1643	OUTPUT:
958	RETVAL	1644	RETVAL
959		1645
960	int	1646	int
961	poll_cb(...)	1647	poll_cb (...)
962	PROTOTYPE:	1648	PROTOTYPE:
963	CODE:	1649	CODE:
964	RETVAL = poll_cb ();	1650	RETVAL = poll_cb ();
965	OUTPUT:	1651	OUTPUT:
966	RETVAL	1652	RETVAL
967		1653
968	void	1654	void
969	poll_wait()	1655	poll_wait ()
970	PROTOTYPE:
971	CODE:	1656	CODE:
972	poll_wait ();	1657	poll_wait ();
973		1658
974	int	1659	int
975	nreqs()	1660	nreqs ()
976	PROTOTYPE:
977	CODE:	1661	CODE:
978	RETVAL = eio_nreqs ();	1662	RETVAL = eio_nreqs ();
979	OUTPUT:	1663	OUTPUT:
980	RETVAL	1664	RETVAL
981		1665
982	int	1666	int
983	nready()	1667	nready ()
984	PROTOTYPE:
985	CODE:	1668	CODE:
986	RETVAL = eio_nready ();	1669	RETVAL = eio_nready ();
987	OUTPUT:	1670	OUTPUT:
988	RETVAL	1671	RETVAL
989		1672
990	int	1673	int
991	npending()	1674	npending ()
992	PROTOTYPE:
993	CODE:	1675	CODE:
994	RETVAL = eio_npending ();	1676	RETVAL = eio_npending ();
995	OUTPUT:	1677	OUTPUT:
996	RETVAL	1678	RETVAL
997		1679
998	int	1680	int
999	nthreads()	1681	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1682	CODE:
1002	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1683	RETVAL = eio_nthreads ();
1003	RETVAL = started;
1004	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1005	OUTPUT:	1684	OUTPUT:
1006	RETVAL	1685	RETVAL
1007		1686
		1687	int
		1688	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1689	CODE:
		1690	RETVAL = posix_fadvise (fh, offset, length, advice);
		1691	OUTPUT:
		1692	RETVAL
		1693
		1694	IV
		1695	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1696	CODE:
		1697	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1698	OUTPUT:
		1699	RETVAL
		1700
		1701	void
		1702	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1703	PPCODE:
		1704	sv_unmagic (scalar, MMAP_MAGIC);
		1705	{
		1706	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1707	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1708	if (addr == (void *)-1)
		1709	XSRETURN_NO;
		1710
		1711	sv_force_normal (scalar);
		1712
		1713	/* we store the length in mg_obj, as namlen is I32 :/ */
		1714	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1715	->mg_obj = (SV *)length;
		1716
		1717	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1718
		1719	if (!(prot & PROT_WRITE))
		1720	SvREADONLY_on (scalar);
		1721
		1722	if (SvLEN (scalar))
		1723	Safefree (SvPVX (scalar));
		1724
		1725	SvPVX (scalar) = (char *)addr;
		1726	SvCUR_set (scalar, length);
		1727	SvLEN_set (scalar, 0);
		1728	SvPOK_only (scalar);
		1729
		1730	XSRETURN_YES;
		1731	}
		1732
		1733	void
		1734	munmap (SV *scalar)
		1735	CODE:
		1736	sv_unmagic (scalar, MMAP_MAGIC);
		1737
		1738	int
		1739	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1740	ALIAS:
		1741	mprotect = 1
		1742	CODE:
		1743	{
		1744	STRLEN svlen;
		1745	void *addr = SvPVbyte (scalar, svlen);
		1746	size_t len = SvUV (length);
		1747
		1748	if (offset < 0)
		1749	offset += svlen;
		1750
		1751	if (offset < 0 || offset > svlen)
		1752	croak ("offset outside of scalar");
		1753
		1754	if (!SvOK (length) || len + offset > svlen)
		1755	len = svlen - offset;
		1756
		1757	addr = (void *)(((intptr_t)addr) + offset);
		1758	eio_page_align (&addr, &len);
		1759
		1760	switch (ix)
		1761	{
		1762	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1763	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1764	}
		1765	}
		1766	OUTPUT:
		1767	RETVAL
		1768
		1769	int
		1770	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1771	CODE:
		1772	{
		1773	STRLEN svlen;
		1774	void *addr = SvPVbyte (scalar, svlen);
		1775	size_t len = SvUV (length);
		1776
		1777	if (offset < 0)
		1778	offset += svlen;
		1779
		1780	if (offset < 0 || offset > svlen)
		1781	croak ("offset outside of scalar");
		1782
		1783	if (!SvOK (length) || len + offset > svlen)
		1784	len = svlen - offset;
		1785
		1786	addr = (void *)(((intptr_t)addr) + offset);
		1787	eio_page_align (&addr, &len);
		1788	#if _POSIX_MEMLOCK_RANGE
		1789	RETVAL = munlock (addr, len);
		1790	#else
		1791	RETVAL = EIO_ENOSYS ();
		1792	#endif
		1793	}
		1794	OUTPUT:
		1795	RETVAL
		1796
		1797	int
		1798	munlockall ()
		1799	CODE:
		1800	#if _POSIX_MEMLOCK
		1801	munlockall ();
		1802	#else
		1803	RETVAL = EIO_ENOSYS ();
		1804	#endif
		1805	OUTPUT:
		1806	RETVAL
		1807
		1808	int
		1809	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1810	CODE:
		1811	{
		1812	#if HAVE_LINUX_SPLICE
		1813	loff_t off_in_, off_out_;
		1814	RETVAL = splice (
		1815	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1816	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1817	length, flags
		1818	);
		1819	#else
		1820	RETVAL = EIO_ENOSYS ();
		1821	#endif
		1822	}
		1823	OUTPUT:
		1824	RETVAL
		1825
		1826	int
		1827	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1828	CODE:
		1829	#if HAVE_LINUX_SPLICE
		1830	RETVAL = tee (rfh, wfh, length, flags);
		1831	#else
		1832	RETVAL = EIO_ENOSYS ();
		1833	#endif
		1834	OUTPUT:
		1835	RETVAL
		1836
		1837	void _on_next_submit (SV *cb)
		1838	CODE:
		1839	SvREFCNT_dec (on_next_submit);
		1840	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1841
1008	PROTOTYPES: DISABLE	1842	PROTOTYPES: DISABLE
		1843
		1844	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1845
		1846	BOOT:
		1847	{
		1848	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1849	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1850	}
		1851
		1852	void
		1853	DESTROY (SV *self)
		1854	CODE:
		1855	{
		1856	aio_wd wd = SvAIO_WD (self);
		1857	#if HAVE_AT
		1858	{
		1859	SV *callback = &PL_sv_undef;
		1860	dREQ; /* clobbers next_pri :/ */
		1861	next_pri = req->pri; /* restore next_pri */
		1862	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1863	req->type = EIO_WD_CLOSE;
		1864	req->wd = wd;
		1865	REQ_SEND;
		1866	}
		1867	#else
		1868	eio_wd_close_sync (wd);
		1869	#endif
		1870	}
1009		1871
1010	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1872	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1011		1873
1012	void	1874	void
1013	cancel (aio_req_ornot req)	1875	cancel (aio_req_ornot req)
1014	CODE:	1876	CODE:
1015	eio_cancel (req);	1877	eio_cancel (req);
1016		1878
1017	void	1879	void
1018	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1880	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1019	CODE:	1881	PPCODE:
		1882	{
		1883	if (GIMME_V != G_VOID)
		1884	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1885
		1886	if (items > 1)
		1887	{
		1888	SV *cb_cv =get_cb (callback);
		1889
1020	SvREFCNT_dec (req->callback);	1890	SvREFCNT_dec (req->callback);
1021	req->callback = newSVsv (callback);	1891	req->callback = SvREFCNT_inc (cb_cv);
		1892	}
		1893	}
1022		1894
1023	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1895	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1024		1896
1025	void	1897	void
1026	add (aio_req grp, ...)	1898	add (aio_req grp, ...)
…		…
1058	AV *av;	1930	AV *av;
1059		1931
1060	grp->errorno = errno;	1932	grp->errorno = errno;
1061		1933
1062	av = newAV ();	1934	av = newAV ();
		1935	av_extend (av, items - 1);
1063		1936
1064	for (i = 1; i < items; ++i )	1937	for (i = 1; i < items; ++i )
1065	av_push (av, newSVsv (ST (i)));	1938	av_push (av, newSVsv (ST (i)));
1066		1939
1067	SvREFCNT_dec (grp->sv1);	1940	SvREFCNT_dec (grp->sv1);
…		…
1081	void	1954	void
1082	feed (aio_req grp, SV *callback=&PL_sv_undef)	1955	feed (aio_req grp, SV *callback=&PL_sv_undef)
1083	CODE:	1956	CODE:
1084	{	1957	{
1085	SvREFCNT_dec (grp->sv2);	1958	SvREFCNT_dec (grp->sv2);
1086	grp->sv2 = newSVsv (callback);	1959	grp->sv2 = newSVsv (callback);
		1960	grp->feed = aio_grp_feed;
1087		1961
1088	if (grp->int2 <= 0)	1962	if (grp->int2 <= 0)
1089	grp->int2 = 2;	1963	grp->int2 = 2;
1090		1964
1091	eio_grp_limit (grp, grp->int2);	1965	eio_grp_limit (grp, grp->int2);

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