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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.149 by root, Tue Jun 30 07:33:58 2009 UTC vs.
Revision 1.190 by root, Mon Jul 18 02:02:26 2011 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
18	/* perl namespace pollution */	24	/* perl namespace pollution */
19	#undef VERSION	25	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		26
70	/* perl stupidly overrides readdir and maybe others */	27	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	28	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	29	#undef readdir
73	#undef opendir	30	#undef opendir
74	#undef closedir	31	#undef closedir
		32
		33	#ifdef _WIN32
		34
		35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
		39	#undef open
		40	#undef read
		41	#undef write
		42	#undef send
		43	#undef recv
		44	#undef stat
		45	#undef lstat
		46	#undef fstat
		47	#undef truncate
		48	#undef ftruncate
		49	#undef open
		50	#undef link
		51	#undef close
		52	#undef unlink
		53	#undef mkdir
		54	#undef rmdir
		55	#undef rename
		56	#undef lseek
		57	#undef opendir
		58	#undef readdir
		59	#undef closedir
		60	#undef chmod
		61	#undef fchmod
		62	#undef dup
		63	#undef dup2
		64	#undef abort
		65	#undef pipe
		66
		67	#else
		68
		69	#include <sys/time.h>
		70	#include <sys/select.h>
		71	#include <unistd.h>
		72	#include <utime.h>
		73	#include <signal.h>
		74
		75	#endif
75		76
76	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STAT Stat_t
77		78
78	/* use NV for 32 bit perls as it allows larger offsets */	79	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8	80	#if IVSIZE >= 8
…		…
97	#define expect_false(expr) expect ((expr) != 0, 0)	98	#define expect_false(expr) expect ((expr) != 0, 0)
98	#define expect_true(expr) expect ((expr) != 0, 1)	99	#define expect_true(expr) expect ((expr) != 0, 1)
99		100
100	/*****************************************************************************/	101	/*****************************************************************************/
101		102
102	static HV *stash;
103	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
106		106
107	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
108	#define AIO_GRP_KLASS "IO::AIO::GRP"
109		108
110	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
111	SV *callback; \	110	SV *callback; \
112	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
113	STRLEN stroffset; \	112	STRLEN stroffset; \
114	SV *self;	113	SV *self;
115		114
116	#define EIO_NO_WRAPPERS 1	115	#define EIO_NO_WRAPPERS 1
117		116
		117	#include "libeio/config.h"
118	#include "libeio/eio.h"	118	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		119
145	static int req_invoke (eio_req *req);	120	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	121	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	122	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	123	#define EIO_DESTROY(req) req_destroy (req)
149		124
		125	#include "libeio/eio.c"
		126
		127	/* Linux/others */
		128	#ifndef O_ASYNC
		129	# define O_ASYNC 0
		130	#endif
		131	#ifndef O_DIRECT
		132	# define O_DIRECT 0
		133	#endif
		134	#ifndef O_NOATIME
		135	# define O_NOATIME 0
		136	#endif
		137
		138	/* POSIX */
		139	#ifndef O_CLOEXEC
		140	# define O_CLOEXEC 0
		141	#endif
		142	#ifndef O_NOFOLLOW
		143	# define O_NOFOLLOW 0
		144	#endif
		145	#ifndef O_NOCTTY
		146	# define O_NOCTTY 0
		147	#endif
		148	#ifndef O_NONBLOCK
		149	# define O_NONBLOCK 0
		150	#endif
		151	#ifndef O_EXEC
		152	# define O_EXEC 0
		153	#endif
		154	#ifndef O_SEARCH
		155	# define O_SEARCH 0
		156	#endif
		157	#ifndef O_DIRECTORY
		158	# define O_DIRECTORY 0
		159	#endif
		160	#ifndef O_DSYNC
		161	# define O_DSYNC 0
		162	#endif
		163	#ifndef O_RSYNC
		164	# define O_RSYNC 0
		165	#endif
		166	#ifndef O_SYNC
		167	# define O_SYNC 0
		168	#endif
		169	#ifndef O_TTY_INIT
		170	# define O_TTY_INIT 0
		171	#endif
		172
		173	#ifndef POSIX_FADV_NORMAL
		174	# define POSIX_FADV_NORMAL 0
		175	#endif
		176	#ifndef POSIX_FADV_SEQUENTIAL
		177	# define POSIX_FADV_SEQUENTIAL 0
		178	#endif
		179	#ifndef POSIX_FADV_RANDOM
		180	# define POSIX_FADV_RANDOM 0
		181	#endif
		182	#ifndef POSIX_FADV_NOREUSE
		183	# define POSIX_FADV_NOREUSE 0
		184	#endif
		185	#ifndef POSIX_FADV_WILLNEED
		186	# define POSIX_FADV_WILLNEED 0
		187	#endif
		188	#ifndef POSIX_FADV_DONTNEED
		189	# define POSIX_FADV_DONTNEED 0
		190	#endif
		191
		192	#if !HAVE_POSIX_FADVISE
		193	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		194	#endif
		195
		196	#ifndef POSIX_MADV_NORMAL
		197	# define POSIX_MADV_NORMAL 0
		198	#endif
		199	#ifndef POSIX_MADV_SEQUENTIAL
		200	# define POSIX_MADV_SEQUENTIAL 0
		201	#endif
		202	#ifndef POSIX_MADV_RANDOM
		203	# define POSIX_MADV_RANDOM 0
		204	#endif
		205	#ifndef POSIX_MADV_WILLNEED
		206	# define POSIX_MADV_WILLNEED 0
		207	#endif
		208	#ifndef POSIX_MADV_DONTNEED
		209	# define POSIX_MADV_DONTNEED 0
		210	#endif
		211
		212	#if !HAVE_POSIX_MADVISE
		213	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		214	#endif
		215
		216	#ifndef PROT_NONE
		217	# define PROT_NONE 0
		218	#endif
		219	#ifndef PROT_READ
		220	# define PROT_READ 0
		221	#endif
		222	#ifndef PROT_WRITE
		223	# define PROT_READ 0
		224	#endif
		225	#ifndef PROT_EXEC
		226	# define PROT_EXEC 0
		227	#endif
		228
		229	#ifndef ST_RDONLY
		230	# define ST_RDONLY 0
		231	#endif
		232	#ifndef ST_NOSUID
		233	# define ST_NOSUID 0
		234	#endif
		235	#ifndef ST_NODEV
		236	# define ST_NODEV 0
		237	#endif
		238	#ifndef ST_NOEXEC
		239	# define ST_NOEXEC 0
		240	#endif
		241	#ifndef ST_SYNCHRONOUS
		242	# define ST_SYNCHRONOUS 0
		243	#endif
		244	#ifndef ST_MANDLOCK
		245	# define ST_MANDLOCK 0
		246	#endif
		247	#ifndef ST_WRITE
		248	# define ST_WRITE 0
		249	#endif
		250	#ifndef ST_APPEND
		251	# define ST_APPEND 0
		252	#endif
		253	#ifndef ST_IMMUTABLE
		254	# define ST_IMMUTABLE 0
		255	#endif
		256	#ifndef ST_NOATIME
		257	# define ST_NOATIME 0
		258	#endif
		259	#ifndef ST_NODIRATIME
		260	# define ST_NODIRATIME 0
		261	#endif
		262	#ifndef ST_RELATIME
		263	# define ST_RELATIME 0
		264	#endif
		265
		266	#ifndef S_IFIFO
		267	# define S_IFIFO 0
		268	#endif
		269	#ifndef S_IFCHR
		270	# define S_IFCHR 0
		271	#endif
		272	#ifndef S_IFBLK
		273	# define S_IFBLK 0
		274	#endif
		275	#ifndef S_IFLNK
		276	# define S_IFLNK 0
		277	#endif
		278	#ifndef S_IFREG
		279	# define S_IFREG 0
		280	#endif
		281	#ifndef S_IFDIR
		282	# define S_IFDIR 0
		283	#endif
		284	#ifndef S_IFWHT
		285	# define S_IFWHT 0
		286	#endif
		287	#ifndef S_IFSOCK
		288	# define S_IFSOCK 0
		289	#endif
		290
		291	#ifndef MAP_ANONYMOUS
		292	# ifdef MAP_ANON
		293	# define MAP_ANONYMOUS MAP_ANON
		294	# else
		295	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		296	# endif
		297	#endif
		298	#ifndef MAP_HUGETLB
		299	# define MAP_HUGETLB 0
		300	#endif
		301	#ifndef MAP_LOCKED
		302	# define MAP_LOCKED 0
		303	#endif
		304	#ifndef MAP_NORESERVE
		305	# define MAP_NORESERVE 0
		306	#endif
		307	#ifndef MAP_POPULATE
		308	# define MAP_POPULATE 0
		309	#endif
		310	#ifndef MAP_NONBLOCK
		311	# define MAP_NONBLOCK 0
		312	#endif
		313
		314	#ifndef makedev
		315	# define makedev(maj,min) (((maj) << 8) | (min))
		316	#endif
		317	#ifndef major
		318	# define major(dev) ((dev) >> 8)
		319	#endif
		320	#ifndef minor
		321	# define minor(dev) ((dev) & 0xff)
		322	#endif
		323
		324	#ifndef PAGESIZE
		325	# define PAGESIZE sysconf (_SC_PAGESIZE)
		326	#endif
		327
150	enum {	328	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	329	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	330	};
153		331
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	332	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	333	typedef eio_req *aio_req_ornot;
158		334
159	static SV *on_next_submit;	335	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	336	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	337	static int max_outstanding;
162		338
163	static int respipe_osf [2], respipe [2] = { -1, -1 };	339	static s_epipe respipe;
164		340
165	static void req_destroy (aio_req req);	341	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	342	static void req_cancel (aio_req req);
167		343
168	static void want_poll (void)	344	static void want_poll (void)
169	{	345	{
170	/* write a dummy byte to the pipe so fh becomes ready */	346	/* write a dummy byte to the pipe so fh becomes ready */
171	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	347	s_epipe_signal (&respipe);
172	}	348	}
173		349
174	static void done_poll (void)	350	static void done_poll (void)
175	{	351	{
176	/* read any signals sent by the worker threads */	352	/* read any signals sent by the worker threads */
177	char buf [4];	353	s_epipe_drain (&respipe);
178	while (respipe_read (respipe [0], buf, 4) == 4)
179	;
180	}	354	}
181		355
182	/* must be called at most once */	356	/* must be called at most once */
183	static SV *req_sv (aio_req req, const char *klass)	357	static SV *req_sv (aio_req req, HV *stash)
184	{	358	{
185	if (!req->self)	359	if (!req->self)
186	{	360	{
187	req->self = (SV *)newHV ();	361	req->self = (SV *)newHV ();
188	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189	}	363	}
190		364
191	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192	}	366	}
193		367
194	static aio_req SvAIO_REQ (SV *sv)	368	static aio_req SvAIO_REQ (SV *sv)
195	{	369	{
196	MAGIC *mg;	370	MAGIC *mg;
197		371
198	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	372	if (!SvROK (sv)
		373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		374	&& SvSTASH (SvRV (sv)) != aio_req_stash
		375	&& !sv_derived_from (sv, "IO::AIO::REQ")))
199	croak ("object of class " AIO_REQ_KLASS " expected");	376	croak ("object of class IO::AIO::REQ expected");
200		377
201	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202		379
203	return mg ? (aio_req)mg->mg_ptr : 0;	380	return mg ? (aio_req)mg->mg_ptr : 0;
204	}	381	}
…		…
210	dSP;	387	dSP;
211		388
212	ENTER;	389	ENTER;
213	SAVETMPS;	390	SAVETMPS;
214	PUSHMARK (SP);	391	PUSHMARK (SP);
215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	392	XPUSHs (req_sv (grp, aio_grp_stash));
216	PUTBACK;	393	PUTBACK;
217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	394	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218	SPAGAIN;	395	SPAGAIN;
219	FREETMPS;	396	FREETMPS;
220	LEAVE;	397	LEAVE;
…		…
238	}	415	}
239	}	416	}
240		417
241	static int req_invoke (eio_req *req)	418	static int req_invoke (eio_req *req)
242	{	419	{
243	dSP;
244
245	if (req->flags & FLAG_SV2_RO_OFF)	420	if (req->flags & FLAG_SV2_RO_OFF)
246	SvREADONLY_off (req->sv2);	421	SvREADONLY_off (req->sv2);
247		422
248	if (!EIO_CANCELLED (req) && req->callback)	423	if (!EIO_CANCELLED (req) && req->callback)
249	{	424	{
		425	dSP;
		426	static SV *sv_result_cache; /* caches the result integer SV */
		427	SV *sv_result;
		428
250	ENTER;	429	ENTER;
251	SAVETMPS;	430	SAVETMPS;
252	PUSHMARK (SP);	431	PUSHMARK (SP);
253	EXTEND (SP, 1);	432	EXTEND (SP, 1);
		433
		434	/* do not recreate the result IV from scratch each time */
		435	if (expect_true (sv_result_cache))
		436	{
		437	sv_result = sv_result_cache; sv_result_cache = 0;
		438	SvIV_set (sv_result, req->result);
		439	SvIOK_only (sv_result);
		440	}
		441	else
		442	{
		443	sv_result = newSViv (req->result);
		444	SvREADONLY_on (sv_result);
		445	}
254		446
255	switch (req->type)	447	switch (req->type)
256	{	448	{
257	case EIO_READDIR:	449	case EIO_READDIR:
258	{	450	{
…		…
326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
327	char sym [64];	519	char sym [64];
328	int symlen;	520	int symlen;
329		521
330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
331	gv_init (gv, stash, sym, symlen, 0);	523	gv_init (gv, aio_stash, sym, symlen, 0);
332		524
333	symlen = snprintf (	525	symlen = snprintf (
334	sym,	526	sym,
335	sizeof (sym),	527	sizeof (sym),
336	"%s&=%d",	528	"%s&=%d",
…		…
344		536
345	PUSHs (fh);	537	PUSHs (fh);
346	}	538	}
347	break;	539	break;
348		540
		541	case EIO_STATVFS:
		542	case EIO_FSTATVFS:
		543	{
		544	SV *rv = &PL_sv_undef;
		545
		546	#ifndef _WIN32
		547	if (req->result >= 0)
		548	{
		549	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		550	HV *hv = newHV ();
		551
		552	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		553
		554	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		555	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		556	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		557	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		558	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		559	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		560	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		561	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		562	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		563	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		564	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		565	}
		566	#endif
		567
		568	PUSHs (rv);
		569	}
		570
		571	break;
		572
349	case EIO_GROUP:	573	case EIO_GROUP:
350	req->int1 = 2; /* mark group as finished */	574	req->int1 = 2; /* mark group as finished */
351		575
352	if (req->sv1)	576	if (req->sv1)
353	{	577	{
…		…
363	case EIO_NOP:	587	case EIO_NOP:
364	case EIO_BUSY:	588	case EIO_BUSY:
365	break;	589	break;
366		590
367	case EIO_READLINK:	591	case EIO_READLINK:
		592	case EIO_REALPATH:
368	if (req->result > 0)	593	if (req->result > 0)
369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	594	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
370	break;	595	break;
371		596
372	case EIO_STAT:	597	case EIO_STAT:
373	case EIO_LSTAT:	598	case EIO_LSTAT:
374	case EIO_FSTAT:	599	case EIO_FSTAT:
375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	600	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
376	PL_laststatval = req->result;	601	PL_laststatval = req->result;
		602	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	603	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378	PUSHs (sv_2mortal (newSViv (req->result)));	604	PUSHs (sv_result);
379	break;	605	break;
380		606
381	case EIO_READ:	607	case EIO_READ:
382	{	608	{
383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	609	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
384	*SvEND (req->sv2) = 0;	610	*SvEND (req->sv2) = 0;
385	SvPOK_only (req->sv2);	611	SvPOK_only (req->sv2);
386	SvSETMAGIC (req->sv2);	612	SvSETMAGIC (req->sv2);
387	PUSHs (sv_2mortal (newSViv (req->result)));	613	PUSHs (sv_result);
388	}	614	}
389	break;	615	break;
390		616
391	case EIO_DUP2:	617	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392	if (req->result > 0)	618	if (req->result > 0)
393	req->result = 0;	619	SvIV_set (sv_result, 0);
394	/* FALLTHROUGH */	620	/* FALLTHROUGH */
395		621
396	default:	622	default:
397	PUSHs (sv_2mortal (newSViv (req->result)));	623	PUSHs (sv_result);
398	break;	624	break;
399	}	625	}
400		626
401	errno = req->errorno;	627	errno = req->errorno;
402		628
403	PUTBACK;	629	PUTBACK;
404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	630	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405	SPAGAIN;	631	SPAGAIN;
		632
		633	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		634	SvREFCNT_dec (sv_result);
		635	else
		636	sv_result_cache = sv_result;
406		637
407	FREETMPS;	638	FREETMPS;
408	LEAVE;	639	LEAVE;
409		640
410	PUTBACK;	641	PUTBACK;
…		…
428	Safefree (req);	659	Safefree (req);
429	}	660	}
430		661
431	static void req_cancel_subs (aio_req grp)	662	static void req_cancel_subs (aio_req grp)
432	{	663	{
433	aio_req sub;
434
435	if (grp->type != EIO_GROUP)	664	if (grp->type != EIO_GROUP)
436	return;	665	return;
437		666
438	SvREFCNT_dec (grp->sv2);	667	SvREFCNT_dec (grp->sv2);
439	grp->sv2 = 0;	668	grp->sv2 = 0;
440		669
441	eio_grp_cancel (grp);	670	eio_grp_cancel (grp);
442	}	671	}
443		672
444	#ifdef USE_SOCKETS_AS_HANDLES
445	# define TO_SOCKET(x) (win32_get_osfhandle (x))
446	#else
447	# define TO_SOCKET(x) (x)
448	#endif
449
450	static void
451	create_respipe (void)	673	static void create_respipe (void)
452	{	674	{
453	int old_readfd = respipe [0];
454
455	if (respipe [1] >= 0)
456	respipe_close (TO_SOCKET (respipe [1]));
457
458	#ifdef _WIN32
459	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
460	#else
461	if (pipe (respipe))	675	if (s_epipe_renew (&respipe))
462	#endif
463	croak ("unable to initialize result pipe");	676	croak ("IO::AIO: unable to initialize result pipe");
464
465	if (old_readfd >= 0)
466	{
467	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
468	croak ("unable to initialize result pipe(2)");
469
470	respipe_close (respipe [0]);
471	respipe [0] = old_readfd;
472	}
473
474	#ifdef _WIN32
475	int arg = 1;
476	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
477	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
478	#else
479	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
480	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
481	#endif
482	croak ("unable to initialize result pipe(3)");
483
484	respipe_osf [0] = TO_SOCKET (respipe [0]);
485	respipe_osf [1] = TO_SOCKET (respipe [1]);
486	}	677	}
487		678
488	static void poll_wait (void)	679	static void poll_wait (void)
489	{	680	{
490	fd_set rfd;
491
492	while (eio_nreqs ())	681	while (eio_nreqs ())
493	{	682	{
494	int size;	683	int size;
495		684
496	X_LOCK (reslock);	685	X_LOCK (reslock);
…		…
500	if (size)	689	if (size)
501	return;	690	return;
502		691
503	etp_maybe_start_thread ();	692	etp_maybe_start_thread ();
504		693
505	FD_ZERO (&rfd);	694	s_epipe_wait (&respipe);
506	FD_SET (respipe [0], &rfd);
507
508	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
509	}	695	}
510	}	696	}
511		697
512	static int poll_cb (void)	698	static int poll_cb (void)
513	{	699	{
…		…
523		709
524	poll_wait ();	710	poll_wait ();
525	}	711	}
526	}	712	}
527		713
528	static void atfork_child (void)	714	static void ecb_cold
		715	reinit (void)
529	{	716	{
530	create_respipe ();	717	create_respipe ();
531	}
532		718
533	static SV *	719	if (eio_init (want_poll, done_poll) < 0)
534	get_cb (SV *cb_sv)	720	croak ("IO::AIO: unable to initialise eio library");
535	{	721	}
536	HV *st;
537	GV *gvp;
538	CV *cv;
539		722
540	if (!SvOK (cb_sv))	723	/*****************************************************************************/
		724
		725	#if !_POSIX_MAPPED_FILES
		726	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		727	# define munmap(addr,length) (errno = ENOSYS, -1)
		728	#endif
		729
		730	#if !_POSIX_MEMORY_PROTECTION
		731	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		732	# define PROT_NONE 0
		733	# define PROT_WRITE 0
		734	# define MAP_PRIVATE 0
		735	# define MAP_SHARED 0
		736	# define MAP_FIXED 0
		737	#endif
		738
		739	#define MMAP_MAGIC PERL_MAGIC_ext
		740
		741	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		742	{
		743	int old_errno = errno;
		744	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		745	errno = old_errno;
		746
		747	mg->mg_obj = 0; /* just in case */
		748
		749	SvREADONLY_off (sv);
		750
		751	if (SvPVX (sv) != mg->mg_ptr)
		752	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		753
		754	SvCUR_set (sv, 0);
		755	SvPVX (sv) = 0;
		756	SvOK_off (sv);
		757
541	return 0;	758	return 0;
		759	}
542		760
543	cv = sv_2cv (cb_sv, &st, &gvp, 0);	761	static MGVTBL mmap_vtbl = {
		762	0, 0, 0, 0, mmap_free
		763	};
544		764
545	if (!cv)	765	/*****************************************************************************/
546	croak ("IO::AIO callback must be undef or a CODE reference");
547		766
548	return (SV *)cv;	767	static SV * get_cb (SV *cb_sv)
		768	{
		769	SvGETMAGIC (cb_sv);
		770	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
549	}	771	}
550		772
551	#define dREQ \	773	#define dREQ \
552	SV *cb_cv; \	774	SV *cb_cv; \
553	aio_req req; \	775	aio_req req; \
…		…
567	PUTBACK; \	789	PUTBACK; \
568	req_submit (req); \	790	req_submit (req); \
569	SPAGAIN; \	791	SPAGAIN; \
570	\	792	\
571	if (GIMME_V != G_VOID) \	793	if (GIMME_V != G_VOID) \
572	XPUSHs (req_sv (req, AIO_REQ_KLASS));	794	XPUSHs (req_sv (req, aio_req_stash));
573
574	static int
575	extract_fd (SV *fh, int wr)
576	{
577	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));
578
579	if (fd < 0)
580	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
581
582	return fd;
583	}
584		795
585	MODULE = IO::AIO PACKAGE = IO::AIO	796	MODULE = IO::AIO PACKAGE = IO::AIO
586		797
587	PROTOTYPES: ENABLE	798	PROTOTYPES: ENABLE
588		799
…		…
590	{	801	{
591	static const struct {	802	static const struct {
592	const char *name;	803	const char *name;
593	IV iv;	804	IV iv;
594	} *civ, const_iv[] = {	805	} *civ, const_iv[] = {
595	# define const_iv(name, value) { # name, (IV) value },	806	# define const_niv(name, value) { # name, (IV) value },
		807	# define const_iv(name) { # name, (IV) name },
596	# define const_eio(name) { # name, (IV) EIO_ ## name },	808	# define const_eio(name) { # name, (IV) EIO_ ## name },
597	const_iv (EXDEV , EXDEV)	809	const_iv (EXDEV)
598	const_iv (ENOSYS , ENOSYS)	810	const_iv (ENOSYS)
599	const_iv (O_RDONLY, O_RDONLY)	811	const_iv (O_RDONLY)
600	const_iv (O_WRONLY, O_WRONLY)	812	const_iv (O_WRONLY)
		813	const_iv (O_RDWR)
601	const_iv (O_CREAT , O_CREAT)	814	const_iv (O_CREAT)
602	const_iv (O_TRUNC , O_TRUNC)	815	const_iv (O_TRUNC)
603	#ifndef _WIN32	816	const_iv (O_EXCL)
		817	const_iv (O_APPEND)
		818
		819	const_iv (O_ASYNC)
		820	const_iv (O_DIRECT)
		821	const_iv (O_NOATIME)
		822
		823	const_iv (O_CLOEXEC)
		824	const_iv (O_NOCTTY)
		825	const_iv (O_NOFOLLOW)
		826	const_iv (O_NONBLOCK)
		827	const_iv (O_EXEC)
		828	const_iv (O_SEARCH)
		829	const_iv (O_DIRECTORY)
		830	const_iv (O_DSYNC)
		831	const_iv (O_RSYNC)
		832	const_iv (O_SYNC)
		833	const_iv (O_TTY_INIT)
		834
604	const_iv (S_IFIFO , S_IFIFO)	835	const_iv (S_IFIFO)
605	#endif	836	const_iv (S_IFCHR)
		837	const_iv (S_IFBLK)
		838	const_iv (S_IFLNK)
		839	const_iv (S_IFREG)
		840	const_iv (S_IFDIR)
		841	const_iv (S_IFWHT)
		842	const_iv (S_IFSOCK)
		843	const_iv (S_IFMT)
		844
606	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	845	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
607	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	846	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
608	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	847	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
609	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	848	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
610	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	849	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
611	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	850	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		851
		852	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		853	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		854	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		855	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		856	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		857
		858	const_iv (ST_RDONLY)
		859	const_iv (ST_NOSUID)
		860	const_iv (ST_NODEV)
		861	const_iv (ST_NOEXEC)
		862	const_iv (ST_SYNCHRONOUS)
		863	const_iv (ST_MANDLOCK)
		864	const_iv (ST_WRITE)
		865	const_iv (ST_APPEND)
		866	const_iv (ST_IMMUTABLE)
		867	const_iv (ST_NOATIME)
		868	const_iv (ST_NODIRATIME)
		869	const_iv (ST_RELATIME)
		870
		871	const_iv (PROT_NONE)
		872	const_iv (PROT_EXEC)
		873	const_iv (PROT_READ)
		874	const_iv (PROT_WRITE)
		875
		876	/*const_iv (MAP_FIXED)*/
		877	const_iv (MAP_PRIVATE)
		878	const_iv (MAP_SHARED)
		879	const_iv (MAP_ANONYMOUS)
		880
		881	/* linuxish */
		882	const_iv (MAP_HUGETLB)
		883	const_iv (MAP_LOCKED)
		884	const_iv (MAP_NORESERVE)
		885	const_iv (MAP_POPULATE)
		886	const_iv (MAP_NONBLOCK)
		887
		888	const_eio (MCL_FUTURE)
		889	const_eio (MCL_CURRENT)
		890
		891	const_eio (MS_ASYNC)
		892	const_eio (MS_INVALIDATE)
		893	const_eio (MS_SYNC)
		894
		895	const_eio (MT_MODIFY)
612		896
613	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	897	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
614	const_eio (SYNC_FILE_RANGE_WRITE)	898	const_eio (SYNC_FILE_RANGE_WRITE)
615	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	899	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		900
		901	const_eio (FALLOC_FL_KEEP_SIZE)
616		902
617	const_eio (READDIR_DENTS)	903	const_eio (READDIR_DENTS)
618	const_eio (READDIR_DIRS_FIRST)	904	const_eio (READDIR_DIRS_FIRST)
619	const_eio (READDIR_STAT_ORDER)	905	const_eio (READDIR_STAT_ORDER)
620	const_eio (READDIR_FOUND_UNKNOWN)	906	const_eio (READDIR_FOUND_UNKNOWN)
…		…
628	const_eio (DT_LNK)	914	const_eio (DT_LNK)
629	const_eio (DT_SOCK)	915	const_eio (DT_SOCK)
630	const_eio (DT_WHT)	916	const_eio (DT_WHT)
631	};	917	};
632		918
633	stash = gv_stashpv ("IO::AIO", 1);	919	aio_stash = gv_stashpv ("IO::AIO" , 1);
		920	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		921	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
634		922
635	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	923	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
636	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	924	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
637		925
638	create_respipe ();	926	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
639		927
640	if (eio_init (want_poll, done_poll) < 0)	928	reinit ();
641	croak ("IO::AIO: unable to initialise eio library");
642
643	/* atfork child called in fifo order, so before eio's handler */
644	X_THREAD_ATFORK (0, 0, atfork_child);
645	}	929	}
646		930
647	void	931	void
		932	reinit ()
		933	PROTOTYPE:
		934	CODE:
		935	reinit ();
		936
		937	void
648	max_poll_reqs (int nreqs)	938	max_poll_reqs (unsigned int nreqs)
649	PROTOTYPE: $	939	PROTOTYPE: $
650	CODE:	940	CODE:
651	eio_set_max_poll_reqs (nreqs);	941	eio_set_max_poll_reqs (nreqs);
652		942
653	void	943	void
…		…
655	PROTOTYPE: $	945	PROTOTYPE: $
656	CODE:	946	CODE:
657	eio_set_max_poll_time (nseconds);	947	eio_set_max_poll_time (nseconds);
658		948
659	void	949	void
660	min_parallel (int nthreads)	950	min_parallel (unsigned int nthreads)
661	PROTOTYPE: $	951	PROTOTYPE: $
662	CODE:	952	CODE:
663	eio_set_min_parallel (nthreads);	953	eio_set_min_parallel (nthreads);
664		954
665	void	955	void
666	max_parallel (int nthreads)	956	max_parallel (unsigned int nthreads)
667	PROTOTYPE: $	957	PROTOTYPE: $
668	CODE:	958	CODE:
669	eio_set_max_parallel (nthreads);	959	eio_set_max_parallel (nthreads);
670		960
671	void	961	void
672	max_idle (int nthreads)	962	max_idle (unsigned int nthreads)
673	PROTOTYPE: $	963	PROTOTYPE: $
674	CODE:	964	CODE:
675	eio_set_max_idle (nthreads);	965	eio_set_max_idle (nthreads);
676		966
677	void	967	void
		968	idle_timeout (unsigned int seconds)
		969	PROTOTYPE: $
		970	CODE:
		971	eio_set_idle_timeout (seconds);
		972
		973	void
678	max_outstanding (int maxreqs)	974	max_outstanding (unsigned int maxreqs)
679	PROTOTYPE: $	975	PROTOTYPE: $
680	CODE:	976	CODE:
681	max_outstanding = maxreqs;	977	max_outstanding = maxreqs;
682		978
683	void	979	void
684	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	980	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	981	PPCODE:
687	{	982	{
688	dREQ;	983	dREQ;
689		984
690	req->type = EIO_OPEN;	985	req->type = EIO_OPEN;
…		…
696	REQ_SEND;	991	REQ_SEND;
697	}	992	}
698		993
699	void	994	void
700	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	995	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
701	PROTOTYPE: $;$
702	ALIAS:	996	ALIAS:
703	aio_fsync = EIO_FSYNC	997	aio_fsync = EIO_FSYNC
704	aio_fdatasync = EIO_FDATASYNC	998	aio_fdatasync = EIO_FDATASYNC
705	PPCODE:	999	PPCODE:
706	{	1000	{
707	int fd = extract_fd (fh, 0);	1001	int fd = s_fileno_croak (fh, 0);
708	dREQ;	1002	dREQ;
709		1003
710	req->type = ix;	1004	req->type = ix;
711	req->sv1 = newSVsv (fh);	1005	req->sv1 = newSVsv (fh);
712	req->int1 = fd;	1006	req->int1 = fd;
…		…
714	REQ_SEND (req);	1008	REQ_SEND (req);
715	}	1009	}
716		1010
717	void	1011	void
718	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1012	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
719	PROTOTYPE: $$$$;$
720	PPCODE:	1013	PPCODE:
721	{	1014	{
722	int fd = extract_fd (fh, 0);	1015	int fd = s_fileno_croak (fh, 0);
723	dREQ;	1016	dREQ;
724		1017
725	req->type = EIO_SYNC_FILE_RANGE;	1018	req->type = EIO_SYNC_FILE_RANGE;
726	req->sv1 = newSVsv (fh);	1019	req->sv1 = newSVsv (fh);
727	req->int1 = fd;	1020	req->int1 = fd;
…		…
731		1024
732	REQ_SEND (req);	1025	REQ_SEND (req);
733	}	1026	}
734		1027
735	void	1028	void
		1029	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1030	PPCODE:
		1031	{
		1032	int fd = s_fileno_croak (fh, 0);
		1033	dREQ;
		1034
		1035	req->type = EIO_FALLOCATE;
		1036	req->sv1 = newSVsv (fh);
		1037	req->int1 = fd;
		1038	req->int2 = mode;
		1039	req->offs = offset;
		1040	req->size = len;
		1041
		1042	REQ_SEND (req);
		1043	}
		1044
		1045	void
736	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1046	aio_close (SV *fh, SV *callback=&PL_sv_undef)
737	PROTOTYPE: $;$
738	PPCODE:	1047	PPCODE:
739	{	1048	{
740	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1049	static int close_fd = -1; /* dummy fd to close fds via dup2 */
741	int fd = extract_fd (fh, 0);	1050	int fd = s_fileno_croak (fh, 0);
742	dREQ;	1051	dREQ;
743		1052
744	if (close_pipe < 0)	1053	if (expect_false (close_fd < 0))
745	{	1054	{
746	int pipefd [2];	1055	int pipefd [2];
747		1056
		1057	if (
		1058	#ifdef _WIN32
		1059	_pipe (pipefd, 1, _O_BINARY) < 0
		1060	#else
748	if (pipe (pipefd) < 0	1061	pipe (pipefd) < 0
749	|| close (pipefd [1]) < 0
750	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1062	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1063	#endif
		1064	|| close (pipefd [1]) < 0
		1065	)
751	abort (); /*D*/	1066	abort (); /*D*/
752		1067
753	close_pipe = pipefd [0];	1068	close_fd = pipefd [0];
754	}	1069	}
755		1070
756	req->type = EIO_DUP2;	1071	req->type = EIO_DUP2;
757	req->int1 = close_pipe;	1072	req->int1 = close_fd;
758	req->sv2 = newSVsv (fh);	1073	req->sv2 = newSVsv (fh);
759	req->int2 = fd;	1074	req->int2 = fd;
760		1075
761	REQ_SEND (req);	1076	REQ_SEND (req);
762	}	1077	}
…		…
764	void	1079	void
765	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1080	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
766	ALIAS:	1081	ALIAS:
767	aio_read = EIO_READ	1082	aio_read = EIO_READ
768	aio_write = EIO_WRITE	1083	aio_write = EIO_WRITE
769	PROTOTYPE: $$$$$;$
770	PPCODE:	1084	PPCODE:
771	{	1085	{
772	STRLEN svlen;	1086	STRLEN svlen;
773	int fd = extract_fd (fh, ix == EIO_WRITE);	1087	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
774	char *svptr = SvPVbyte (data, svlen);	1088	char *svptr = SvPVbyte (data, svlen);
775	UV len = SvUV (length);	1089	UV len = SvUV (length);
776		1090
777	if (dataoffset < 0)	1091	if (dataoffset < 0)
778	dataoffset += svlen;	1092	dataoffset += svlen;
…		…
815	}	1129	}
816	}	1130	}
817		1131
818	void	1132	void
819	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1133	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
820	PROTOTYPE: $$;$	1134	ALIAS:
		1135	aio_readlink = EIO_READLINK
		1136	aio_realpath = EIO_REALPATH
821	PPCODE:	1137	PPCODE:
822	{	1138	{
823	SV *data;
824	dREQ;	1139	dREQ;
825		1140
826	req->type = EIO_READLINK;	1141	req->type = ix;
827	req->sv1 = newSVsv (path);	1142	req->sv1 = newSVsv (path);
828	req->ptr1 = SvPVbyte_nolen (req->sv1);	1143	req->ptr1 = SvPVbyte_nolen (req->sv1);
829		1144
830	REQ_SEND;	1145	REQ_SEND;
831	}	1146	}
832		1147
833	void	1148	void
834	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1149	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
835	PROTOTYPE: $$$$;$
836	PPCODE:	1150	PPCODE:
837	{	1151	{
838	int ifd = extract_fd (in_fh , 0);	1152	int ifd = s_fileno_croak (in_fh , 0);
839	int ofd = extract_fd (out_fh, 0);	1153	int ofd = s_fileno_croak (out_fh, 1);
840	dREQ;	1154	dREQ;
841		1155
842	req->type = EIO_SENDFILE;	1156	req->type = EIO_SENDFILE;
843	req->sv1 = newSVsv (out_fh);	1157	req->sv1 = newSVsv (out_fh);
844	req->int1 = ofd;	1158	req->int1 = ofd;
…		…
850	REQ_SEND;	1164	REQ_SEND;
851	}	1165	}
852		1166
853	void	1167	void
854	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1168	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
855	PROTOTYPE: $$$;$
856	PPCODE:	1169	PPCODE:
857	{	1170	{
858	int fd = extract_fd (fh, 0);	1171	int fd = s_fileno_croak (fh, 0);
859	dREQ;	1172	dREQ;
860		1173
861	req->type = EIO_READAHEAD;	1174	req->type = EIO_READAHEAD;
862	req->sv1 = newSVsv (fh);	1175	req->sv1 = newSVsv (fh);
863	req->int1 = fd;	1176	req->int1 = fd;
…		…
868	}	1181	}
869		1182
870	void	1183	void
871	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1184	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
872	ALIAS:	1185	ALIAS:
873	aio_stat = EIO_STAT	1186	aio_stat = EIO_STAT
874	aio_lstat = EIO_LSTAT	1187	aio_lstat = EIO_LSTAT
		1188	aio_statvfs = EIO_STATVFS
875	PPCODE:	1189	PPCODE:
876	{	1190	{
877	dREQ;	1191	dREQ;
878		1192
879	req->sv1 = newSVsv (fh_or_path);	1193	req->sv1 = newSVsv (fh_or_path);
…		…
883	req->type = ix;	1197	req->type = ix;
884	req->ptr1 = SvPVbyte_nolen (req->sv1);	1198	req->ptr1 = SvPVbyte_nolen (req->sv1);
885	}	1199	}
886	else	1200	else
887	{	1201	{
888	req->type = EIO_FSTAT;	1202	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
889	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1203	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
890	}	1204	}
891		1205
892	REQ_SEND;	1206	REQ_SEND;
893	}	1207	}
		1208
		1209	UV
		1210	major (UV dev)
		1211	ALIAS:
		1212	minor = 1
		1213	CODE:
		1214	RETVAL = ix ? major (dev) : minor (dev);
		1215	OUTPUT:
		1216	RETVAL
		1217
		1218	UV
		1219	makedev (UV maj, UV min)
		1220	CODE:
		1221	RETVAL = makedev (maj, min);
		1222	OUTPUT:
		1223	RETVAL
894		1224
895	void	1225	void
896	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1226	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
897	PPCODE:	1227	PPCODE:
898	{	1228	{
…		…
1056		1386
1057	REQ_SEND;	1387	REQ_SEND;
1058	}	1388	}
1059		1389
1060	void	1390	void
		1391	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1392	ALIAS:
		1393	aio_mtouch = EIO_MTOUCH
		1394	aio_msync = EIO_MSYNC
		1395	PPCODE:
		1396	{
		1397	STRLEN svlen;
		1398	char *svptr = SvPVbyte (data, svlen);
		1399	UV len = SvUV (length);
		1400
		1401	if (offset < 0)
		1402	offset += svlen;
		1403
		1404	if (offset < 0 || offset > svlen)
		1405	croak ("offset outside of scalar");
		1406
		1407	if (!SvOK (length) || len + offset > svlen)
		1408	len = svlen - offset;
		1409
		1410	{
		1411	dREQ;
		1412
		1413	req->type = ix;
		1414	req->sv2 = SvREFCNT_inc (data);
		1415	req->ptr2 = (char *)svptr + offset;
		1416	req->size = len;
		1417	req->int1 = flags;
		1418
		1419	REQ_SEND;
		1420	}
		1421	}
		1422
		1423	void
		1424	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1425	PPCODE:
		1426	{
		1427	STRLEN svlen;
		1428	char *svptr = SvPVbyte (data, svlen);
		1429	UV len = SvUV (length);
		1430
		1431	if (offset < 0)
		1432	offset += svlen;
		1433
		1434	if (offset < 0 || offset > svlen)
		1435	croak ("offset outside of scalar");
		1436
		1437	if (!SvOK (length) || len + offset > svlen)
		1438	len = svlen - offset;
		1439
		1440	{
		1441	dREQ;
		1442
		1443	req->type = EIO_MLOCK;
		1444	req->sv2 = SvREFCNT_inc (data);
		1445	req->ptr2 = (char *)svptr + offset;
		1446	req->size = len;
		1447
		1448	REQ_SEND;
		1449	}
		1450	}
		1451
		1452	void
		1453	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1454	PPCODE:
		1455	{
		1456	dREQ;
		1457
		1458	req->type = EIO_MLOCKALL;
		1459	req->int1 = flags;
		1460
		1461	REQ_SEND;
		1462	}
		1463
		1464	void
1061	aio_busy (double delay, SV *callback=&PL_sv_undef)	1465	aio_busy (double delay, SV *callback=&PL_sv_undef)
1062	PPCODE:	1466	PPCODE:
1063	{	1467	{
1064	dREQ;	1468	dREQ;
1065		1469
…		…
1069	REQ_SEND;	1473	REQ_SEND;
1070	}	1474	}
1071		1475
1072	void	1476	void
1073	aio_group (SV *callback=&PL_sv_undef)	1477	aio_group (SV *callback=&PL_sv_undef)
1074	PROTOTYPE: ;$
1075	PPCODE:	1478	PPCODE:
1076	{	1479	{
1077	dREQ;	1480	dREQ;
1078		1481
1079	req->type = EIO_GROUP;	1482	req->type = EIO_GROUP;
1080		1483
1081	req_submit (req);	1484	req_submit (req);
1082	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1485	XPUSHs (req_sv (req, aio_grp_stash));
1083	}	1486	}
1084		1487
1085	void	1488	void
1086	aio_nop (SV *callback=&PL_sv_undef)	1489	aio_nop (SV *callback=&PL_sv_undef)
1087	ALIAS:	1490	ALIAS:
…		…
1096	REQ_SEND;	1499	REQ_SEND;
1097	}	1500	}
1098		1501
1099	int	1502	int
1100	aioreq_pri (int pri = 0)	1503	aioreq_pri (int pri = 0)
1101	PROTOTYPE: ;$
1102	CODE:	1504	CODE:
1103	RETVAL = next_pri;	1505	RETVAL = next_pri;
1104	if (items > 0)	1506	if (items > 0)
1105	{	1507	{
1106	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1508	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1118	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1520	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1119	next_pri = nice;	1521	next_pri = nice;
1120		1522
1121	void	1523	void
1122	flush ()	1524	flush ()
1123	PROTOTYPE:
1124	CODE:	1525	CODE:
1125	while (eio_nreqs ())	1526	while (eio_nreqs ())
1126	{	1527	{
1127	poll_wait ();	1528	poll_wait ();
1128	poll_cb ();	1529	poll_cb ();
1129	}	1530	}
1130		1531
1131	int	1532	int
1132	poll()	1533	poll ()
1133	PROTOTYPE:
1134	CODE:	1534	CODE:
1135	poll_wait ();	1535	poll_wait ();
1136	RETVAL = poll_cb ();	1536	RETVAL = poll_cb ();
1137	OUTPUT:	1537	OUTPUT:
1138	RETVAL	1538	RETVAL
1139		1539
1140	int	1540	int
1141	poll_fileno()	1541	poll_fileno ()
1142	PROTOTYPE:
1143	CODE:	1542	CODE:
1144	RETVAL = respipe [0];	1543	RETVAL = s_epipe_fd (&respipe);
1145	OUTPUT:	1544	OUTPUT:
1146	RETVAL	1545	RETVAL
1147		1546
1148	int	1547	int
1149	poll_cb(...)	1548	poll_cb (...)
1150	PROTOTYPE:	1549	PROTOTYPE:
1151	CODE:	1550	CODE:
1152	RETVAL = poll_cb ();	1551	RETVAL = poll_cb ();
1153	OUTPUT:	1552	OUTPUT:
1154	RETVAL	1553	RETVAL
1155		1554
1156	void	1555	void
1157	poll_wait()	1556	poll_wait ()
1158	PROTOTYPE:
1159	CODE:	1557	CODE:
1160	poll_wait ();	1558	poll_wait ();
1161		1559
1162	int	1560	int
1163	nreqs()	1561	nreqs ()
1164	PROTOTYPE:
1165	CODE:	1562	CODE:
1166	RETVAL = eio_nreqs ();	1563	RETVAL = eio_nreqs ();
1167	OUTPUT:	1564	OUTPUT:
1168	RETVAL	1565	RETVAL
1169		1566
1170	int	1567	int
1171	nready()	1568	nready ()
1172	PROTOTYPE:
1173	CODE:	1569	CODE:
1174	RETVAL = eio_nready ();	1570	RETVAL = eio_nready ();
1175	OUTPUT:	1571	OUTPUT:
1176	RETVAL	1572	RETVAL
1177		1573
1178	int	1574	int
1179	npending()	1575	npending ()
1180	PROTOTYPE:
1181	CODE:	1576	CODE:
1182	RETVAL = eio_npending ();	1577	RETVAL = eio_npending ();
1183	OUTPUT:	1578	OUTPUT:
1184	RETVAL	1579	RETVAL
1185		1580
1186	int	1581	int
1187	nthreads()	1582	nthreads ()
1188	PROTOTYPE:
1189	CODE:	1583	CODE:
1190	RETVAL = eio_nthreads ();	1584	RETVAL = eio_nthreads ();
1191	OUTPUT:	1585	OUTPUT:
1192	RETVAL	1586	RETVAL
1193		1587
1194	int	1588	int
1195	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1589	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1196	PROTOTYPE: $$$$
1197	CODE:	1590	CODE:
1198	{
1199	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1200	RETVAL = posix_fadvise (fh, offset, length, advice);	1591	RETVAL = posix_fadvise (fh, offset, length, advice);
1201	#else
1202	RETVAL = errno = ENOSYS;
1203	#endif
1204	}
1205	OUTPUT:	1592	OUTPUT:
1206	RETVAL	1593	RETVAL
1207		1594
1208	ssize_t	1595	ssize_t
1209	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1596	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1210	PROTOTYPE: $$$$
1211	CODE:	1597	CODE:
1212	eio_sendfile_sync (ofh, ifh, offset, count);	1598	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1599	OUTPUT:
		1600	RETVAL
		1601
		1602	void
		1603	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1604	PPCODE:
		1605	sv_unmagic (scalar, MMAP_MAGIC);
		1606	{
		1607	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1608	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1609	if (addr == (void *)-1)
		1610	XSRETURN_NO;
		1611
		1612	sv_force_normal (scalar);
		1613
		1614	/* we store the length in mg_obj, as namlen is I32 :/ */
		1615	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1616	->mg_obj = (SV *)length;
		1617
		1618	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1619
		1620	if (!(prot & PROT_WRITE))
		1621	SvREADONLY_on (scalar);
		1622
		1623	if (SvLEN (scalar))
		1624	Safefree (SvPVX (scalar));
		1625
		1626	SvPVX (scalar) = (char *)addr;
		1627	SvCUR_set (scalar, length);
		1628	SvLEN_set (scalar, 0);
		1629	SvPOK_only (scalar);
		1630
		1631	XSRETURN_YES;
		1632	}
		1633
		1634	void
		1635	munmap (SV *scalar)
		1636	CODE:
		1637	sv_unmagic (scalar, MMAP_MAGIC);
		1638
		1639	int
		1640	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1641	ALIAS:
		1642	mprotect = 1
		1643	CODE:
		1644	{
		1645	STRLEN svlen;
		1646	void *addr = SvPVbyte (scalar, svlen);
		1647	size_t len = SvUV (length);
		1648
		1649	if (offset < 0)
		1650	offset += svlen;
		1651
		1652	if (offset < 0 || offset > svlen)
		1653	croak ("offset outside of scalar");
		1654
		1655	if (!SvOK (length) || len + offset > svlen)
		1656	len = svlen - offset;
		1657
		1658	addr = (void *)(((intptr_t)addr) + offset);
		1659	eio_page_align (&addr, &len);
		1660
		1661	switch (ix)
		1662	{
		1663	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1664	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1665	}
		1666	}
		1667	OUTPUT:
		1668	RETVAL
		1669
		1670	int
		1671	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1672	CODE:
		1673	{
		1674	STRLEN svlen;
		1675	void *addr = SvPVbyte (scalar, svlen);
		1676	size_t len = SvUV (length);
		1677
		1678	if (offset < 0)
		1679	offset += svlen;
		1680
		1681	if (offset < 0 || offset > svlen)
		1682	croak ("offset outside of scalar");
		1683
		1684	if (!SvOK (length) || len + offset > svlen)
		1685	len = svlen - offset;
		1686
		1687	addr = (void *)(((intptr_t)addr) + offset);
		1688	eio_page_align (&addr, &len);
		1689	#if _POSIX_MEMLOCK_RANGE
		1690	RETVAL = munlock (addr, len);
		1691	#else
		1692	RETVAL = ((errno = ENOSYS), -1);
		1693	#endif
		1694	}
		1695	OUTPUT:
		1696	RETVAL
		1697
		1698	int
		1699	munlockall ()
		1700	CODE:
		1701	#if _POSIX_MEMLOCK
		1702	munlockall ();
		1703	#else
		1704	RETVAL = -1;
		1705	errno = ENOSYS;
		1706	#endif
		1707	OUTPUT:
		1708	RETVAL
1213		1709
1214	void _on_next_submit (SV *cb)	1710	void _on_next_submit (SV *cb)
1215	CODE:	1711	CODE:
1216	SvREFCNT_dec (on_next_submit);	1712	SvREFCNT_dec (on_next_submit);
1217	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1713	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1232	if (GIMME_V != G_VOID)	1728	if (GIMME_V != G_VOID)
1233	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1729	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1234		1730
1235	if (items > 1)	1731	if (items > 1)
1236	{	1732	{
1237	SV *cb_cv = get_cb (callback);	1733	SV *cb_cv =get_cb (callback);
1238		1734
1239	SvREFCNT_dec (req->callback);	1735	SvREFCNT_dec (req->callback);
1240	req->callback = SvREFCNT_inc (cb_cv);	1736	req->callback = SvREFCNT_inc (cb_cv);
1241	}	1737	}
1242	}	1738	}

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