[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.238 by root, Thu Jan 21 23:04:46 2016 UTC vs.
Revision 1.261 by root, Tue Jul 24 19:32:20 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
19		22
…		…
21	# include <sys/mman.h>	24	# include <sys/mman.h>
22	#endif	25	#endif
23		26
24	/* the incompetent fool that created musl keeps __linux__, refuses	27	/* the incompetent fool that created musl keeps __linux__, refuses
25	* to implement any linux standard apis, and also has no way to test	28	* to implement any linux standard apis, and also has no way to test
26	* for his broken iplementation. on't complain if this fails for you.	29	* for his broken iplementation. don't complain to me if this fails
		30	* for you.
27	*/	31	*/
28	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)	32	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)
29	# include <linux/fs.h>	33	# include <linux/fs.h>
30	# ifdef FS_IOC_FIEMAP	34	# ifdef FS_IOC_FIEMAP
31	# include <linux/types.h>	35	# include <linux/types.h>
…		…
103	#define expect_false(expr) expect ((expr) != 0, 0)	107	#define expect_false(expr) expect ((expr) != 0, 0)
104	#define expect_true(expr) expect ((expr) != 0, 1)	108	#define expect_true(expr) expect ((expr) != 0, 1)
105		109
106	/*****************************************************************************/	110	/*****************************************************************************/
107		111
		112	#include "libeio/config.h"
		113
		114	#include "schmorp.h"
		115
		116	#if HAVE_EVENTFD
		117	# include <sys/eventfd.h>
		118	#endif
		119
		120	#if HAVE_TIMERFD
		121	# include <sys/timerfd.h>
		122	#endif
		123
		124	#if HAVE_RLIMITS
		125	#include <sys/time.h>
		126	#include <sys/resource.h>
		127	#endif
		128
108	typedef SV SV8; /* byte-sv, used for argument-checking */	129	typedef SV SV8; /* byte-sv, used for argument-checking */
109	typedef int aio_rfd; /* read file desriptor */	130	typedef int aio_rfd; /* read file desriptor */
110	typedef int aio_wfd; /* write file descriptor */	131	typedef int aio_wfd; /* write file descriptor */
111		132
112	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;	133	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
…		…
118	STRLEN stroffset; \	139	STRLEN stroffset; \
119	SV *self;	140	SV *self;
120		141
121	#define EIO_NO_WRAPPERS 1	142	#define EIO_NO_WRAPPERS 1
122		143
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	144	#include "libeio/eio.h"
125		145
126	static int req_invoke (eio_req *req);	146	static int req_invoke (eio_req *req);
127	#define EIO_FINISH(req) req_invoke (req)	147	#define EIO_FINISH(req) req_invoke (req)
128	static void req_destroy (eio_req *grp);	148	static void req_destroy (eio_req *grp);
…		…
144	# else	164	# else
145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	165	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
146	# endif	166	# endif
147	#endif	167	#endif
148		168
		169	#ifndef makedev
		170	# define makedev(maj,min) (((maj) << 8) \| (min))
		171	#endif
		172	#ifndef major
		173	# define major(dev) ((dev) >> 8)
		174	#endif
		175	#ifndef minor
		176	# define minor(dev) ((dev) & 0xff)
		177	#endif
		178
		179	#if PAGESIZE <= 0
		180	# define PAGESIZE sysconf (_SC_PAGESIZE)
		181	#endif
		182
		183	/*****************************************************************************/
		184
		185	#if !_POSIX_MAPPED_FILES
		186	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		187	# define munmap(addr,length) EIO_ENOSYS ()
		188	#endif
		189
		190	#if !_POSIX_MEMORY_PROTECTION
		191	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		192	#endif
		193
		194	#if !MREMAP_MAYMOVE
		195	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		196	#endif
		197
		198	#define FOREIGN_MAGIC PERL_MAGIC_ext
		199
		200	static int ecb_cold
		201	mmap_free (pTHX_ SV sv, MAGIC mg)
		202	{
		203	int old_errno = errno;
		204	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		205	errno = old_errno;
		206
		207	mg->mg_obj = 0; /* just in case */
		208
		209	SvREADONLY_off (sv);
		210
		211	if (SvPVX (sv) != mg->mg_ptr)
		212	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		213
		214	SvCUR_set (sv, 0);
		215	SvPVX (sv) = 0;
		216	SvOK_off (sv);
		217
		218	return 0;
		219	}
		220
		221	static MGVTBL mmap_vtbl = {
		222	0, 0, 0, 0, mmap_free
		223	};
		224
		225	static int ecb_cold
		226	sysfree_free (pTHX_ SV sv, MAGIC mg)
		227	{
		228	free (mg->mg_ptr);
		229	mg->mg_obj = 0; /* just in case */
		230
		231	SvREADONLY_off (sv);
		232
		233	if (SvPVX (sv) != mg->mg_ptr)
		234	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		235
		236	SvCUR_set (sv, 0);
		237	SvPVX (sv) = 0;
		238	SvOK_off (sv);
		239
		240	return 0;
		241	}
		242
		243	static MGVTBL sysfree_vtbl = {
		244	0, 0, 0, 0, sysfree_free
		245	};
		246
		247	/*****************************************************************************/
		248
		249	/* helper: set scalar to foreign ptr with custom free */
		250	static void
		251	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		252	{
		253	sv_force_normal (sv);
		254
		255	/* we store the length in mg_obj, as namlen is I32 :/ */
		256	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		257	->mg_obj = (SV *)length;
		258
		259	SvUPGRADE (sv, SVt_PV); /* nop... */
		260
		261	if (SvLEN (sv))
		262	Safefree (SvPVX (sv));
		263
		264	SvPVX (sv) = (char *)addr;
		265	SvCUR_set (sv, length);
		266	SvLEN_set (sv, 0);
		267	SvPOK_only (sv);
		268	}
		269
		270	static void
		271	sv_clear_foreign (SV *sv)
		272	{
		273	/* todo: iterate over magic and only free ours, but of course */
		274	/* the perl5porters will call that (correct) behaviour buggy */
		275	sv_unmagic (sv, FOREIGN_MAGIC);
		276	}
		277
		278	/*****************************************************************************/
		279
149	/* defines all sorts of constants to 0 unless they are already defined */	280	/* defines all sorts of constants to 0 unless they are already defined */
150	/* also provides const_iv_ and const_niv_ macros for them */	281	/* also provides const_iv_ and const_niv_ macros for them */
151	#include "def0.h"	282	#include "def0.h"
152
153	#ifndef makedev
154	# define makedev(maj,min) (((maj) << 8) \| (min))
155	#endif
156	#ifndef major
157	# define major(dev) ((dev) >> 8)
158	#endif
159	#ifndef minor
160	# define minor(dev) ((dev) & 0xff)
161	#endif
162
163	#if PAGESIZE <= 0
164	# define PAGESIZE sysconf (_SC_PAGESIZE)
165	#endif
166		283
167	/*****************************************************************************/	284	/*****************************************************************************/
168		285
169	static void	286	static void
170	fiemap (eio_req *req)	287	fiemap (eio_req *req)
…		…
590	SvSETMAGIC (req->sv2);	707	SvSETMAGIC (req->sv2);
591	PUSHs (sv_result);	708	PUSHs (sv_result);
592	}	709	}
593	break;	710	break;
594		711
		712	case EIO_SLURP:
		713	{
		714	if (req->result >= 0)
		715	{
		716	/* if length was originally not known, we steal the malloc'ed memory */
		717	if (req->flags & EIO_FLAG_PTR2_FREE)
		718	{
		719	req->flags &= ~EIO_FLAG_PTR2_FREE;
		720	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		721	}
		722	else
		723	{
		724	SvCUR_set (req->sv2, req->result);
		725	*SvEND (req->sv2) = 0;
		726	SvPOK_only (req->sv2);
		727	}
		728
		729	SvSETMAGIC (req->sv2);
		730	}
		731
		732	PUSHs (sv_result);
		733	}
		734	break;
		735
595	case EIO_CUSTOM:	736	case EIO_CUSTOM:
596	if (req->feed == fiemap)	737	if (req->feed == fiemap)
597	{	738	{
598	#if HAVE_FIEMAP	739	#if HAVE_FIEMAP
599	if (!req->result)	740	if (!req->result)
…		…
742	create_respipe ();	883	create_respipe ();
743		884
744	if (eio_init (want_poll, done_poll) < 0)	885	if (eio_init (want_poll, done_poll) < 0)
745	croak ("IO::AIO: unable to initialise eio library");	886	croak ("IO::AIO: unable to initialise eio library");
746	}	887	}
747
748	/*****************************************************************************/
749
750	#if !_POSIX_MAPPED_FILES
751	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
752	# define munmap(addr,length) EIO_ENOSYS ()
753	#endif
754
755	#if !_POSIX_MEMORY_PROTECTION
756	# define mprotect(addr,len,prot) EIO_ENOSYS ()
757	#endif
758
759	#define MMAP_MAGIC PERL_MAGIC_ext
760
761	static int ecb_cold
762	mmap_free (pTHX_ SV sv, MAGIC mg)
763	{
764	int old_errno = errno;
765	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
766	errno = old_errno;
767
768	mg->mg_obj = 0; /* just in case */
769
770	SvREADONLY_off (sv);
771
772	if (SvPVX (sv) != mg->mg_ptr)
773	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
774
775	SvCUR_set (sv, 0);
776	SvPVX (sv) = 0;
777	SvOK_off (sv);
778
779	return 0;
780	}
781
782	static MGVTBL mmap_vtbl = {
783	0, 0, 0, 0, mmap_free
784	};
785		888
786	/*****************************************************************************/	889	/*****************************************************************************/
787		890
788	static SV *	891	static SV *
789	get_cb (SV *cb_sv)	892	get_cb (SV *cb_sv)
…		…
885	req_set_path1 (req, fh_or_path);	988	req_set_path1 (req, fh_or_path);
886	break;	989	break;
887	}	990	}
888	}	991	}
889		992
		993	/*****************************************************************************/
		994
		995	static void
		996	ts_set (struct timespec *ts, NV value)
		997	{
		998	ts->tv_sec = value;
		999	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1000	}
		1001
		1002	static NV
		1003	ts_get (const struct timespec *ts)
		1004	{
		1005	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1006	}
		1007
		1008	/*****************************************************************************/
		1009
890	XS(boot_IO__AIO) ecb_cold;	1010	XS(boot_IO__AIO) ecb_cold;
891		1011
892	MODULE = IO::AIO PACKAGE = IO::AIO	1012	MODULE = IO::AIO PACKAGE = IO::AIO
893		1013
894	PROTOTYPES: ENABLE	1014	PROTOTYPES: ENABLE
…		…
925	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1045	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1046	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1047	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928		1048
929	/* the second block will be 0 when missing */	1049	/* the second block will be 0 when missing */
		1050	const_iv (O_ACCMODE)
		1051
930	const_iv (O_RDONLY)	1052	const_iv (O_RDONLY)
931	const_iv (O_WRONLY)	1053	const_iv (O_WRONLY)
932	const_iv (O_RDWR)	1054	const_iv (O_RDWR)
933	const_iv (O_CREAT)	1055	const_iv (O_CREAT)
934	const_iv (O_TRUNC)	1056	const_iv (O_TRUNC)
…		…
993	const_iv (MAP_NONBLOCK)	1115	const_iv (MAP_NONBLOCK)
994	const_iv (MAP_GROWSDOWN)	1116	const_iv (MAP_GROWSDOWN)
995	const_iv (MAP_32BIT)	1117	const_iv (MAP_32BIT)
996	const_iv (MAP_HUGETLB)	1118	const_iv (MAP_HUGETLB)
997	const_iv (MAP_STACK)	1119	const_iv (MAP_STACK)
		1120
		1121	const_iv (MREMAP_MAYMOVE)
		1122	const_iv (MREMAP_FIXED)
		1123
		1124	const_iv (F_DUPFD_CLOEXEC)
		1125
		1126	const_iv (MSG_CMSG_CLOEXEC)
		1127	const_iv (SOCK_CLOEXEC)
		1128
		1129	const_iv (F_OFD_GETLK)
		1130	const_iv (F_OFD_SETLK)
		1131	const_iv (F_OFD_GETLKW)
		1132
		1133	const_iv (FIFREEZE)
		1134	const_iv (FITHAW)
		1135	const_iv (FITRIM)
		1136	const_iv (FICLONE)
		1137	const_iv (FICLONERANGE)
		1138	const_iv (FIDEDUPERANGE)
		1139
		1140	const_iv (FS_IOC_GETFLAGS)
		1141	const_iv (FS_IOC_SETFLAGS)
		1142	const_iv (FS_IOC_GETVERSION)
		1143	const_iv (FS_IOC_SETVERSION)
		1144	const_iv (FS_IOC_FIEMAP)
		1145	const_iv (FS_IOC_FSGETXATTR)
		1146	const_iv (FS_IOC_FSSETXATTR)
		1147	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1148	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1149	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1150
		1151	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1152
		1153	const_iv (FS_SECRM_FL)
		1154	const_iv (FS_UNRM_FL)
		1155	const_iv (FS_COMPR_FL)
		1156	const_iv (FS_SYNC_FL)
		1157	const_iv (FS_IMMUTABLE_FL)
		1158	const_iv (FS_APPEND_FL)
		1159	const_iv (FS_NODUMP_FL)
		1160	const_iv (FS_NOATIME_FL)
		1161	const_iv (FS_DIRTY_FL)
		1162	const_iv (FS_COMPRBLK_FL)
		1163	const_iv (FS_NOCOMP_FL)
		1164	const_iv (FS_ENCRYPT_FL)
		1165	const_iv (FS_BTREE_FL)
		1166	const_iv (FS_INDEX_FL)
		1167	const_iv (FS_JOURNAL_DATA_FL)
		1168	const_iv (FS_NOTAIL_FL)
		1169	const_iv (FS_DIRSYNC_FL)
		1170	const_iv (FS_TOPDIR_FL)
		1171	const_iv (FS_FL_USER_MODIFIABLE)
		1172
		1173	const_iv (FS_XFLAG_REALTIME)
		1174	const_iv (FS_XFLAG_PREALLOC)
		1175	const_iv (FS_XFLAG_IMMUTABLE)
		1176	const_iv (FS_XFLAG_APPEND)
		1177	const_iv (FS_XFLAG_SYNC)
		1178	const_iv (FS_XFLAG_NOATIME)
		1179	const_iv (FS_XFLAG_NODUMP)
		1180	const_iv (FS_XFLAG_RTINHERIT)
		1181	const_iv (FS_XFLAG_PROJINHERIT)
		1182	const_iv (FS_XFLAG_NOSYMLINKS)
		1183	const_iv (FS_XFLAG_EXTSIZE)
		1184	const_iv (FS_XFLAG_EXTSZINHERIT)
		1185	const_iv (FS_XFLAG_NODEFRAG)
		1186	const_iv (FS_XFLAG_FILESTREAM)
		1187	const_iv (FS_XFLAG_DAX)
		1188	const_iv (FS_XFLAG_HASATTR)
998		1189
999	const_iv (FIEMAP_FLAG_SYNC)	1190	const_iv (FIEMAP_FLAG_SYNC)
1000	const_iv (FIEMAP_FLAG_XATTR)	1191	const_iv (FIEMAP_FLAG_XATTR)
1001	const_iv (FIEMAP_FLAGS_COMPAT)	1192	const_iv (FIEMAP_FLAGS_COMPAT)
1002	const_iv (FIEMAP_EXTENT_LAST)	1193	const_iv (FIEMAP_EXTENT_LAST)
…		…
1014	const_iv (SPLICE_F_MOVE)	1205	const_iv (SPLICE_F_MOVE)
1015	const_iv (SPLICE_F_NONBLOCK)	1206	const_iv (SPLICE_F_NONBLOCK)
1016	const_iv (SPLICE_F_MORE)	1207	const_iv (SPLICE_F_MORE)
1017	const_iv (SPLICE_F_GIFT)	1208	const_iv (SPLICE_F_GIFT)
1018		1209
		1210	const_iv (EFD_CLOEXEC)
		1211	const_iv (EFD_NONBLOCK)
		1212	const_iv (EFD_SEMAPHORE)
		1213
		1214	const_iv (CLOCK_REALTIME)
		1215	const_iv (CLOCK_MONOTONIC)
		1216	const_iv (CLOCK_BOOTTIME)
		1217	const_iv (CLOCK_REALTIME_ALARM)
		1218	const_iv (CLOCK_BOOTTIME_ALARM)
		1219
		1220	const_iv (TFD_NONBLOCK)
		1221	const_iv (TFD_CLOEXEC)
		1222
		1223	const_iv (TFD_TIMER_ABSTIME)
		1224	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1225
1019	/* these are libeio constants, and are independent of gendef0 */	1226	/* these are libeio constants, and are independent of gendef0 */
1020	const_eio (SEEK_SET)	1227	const_eio (SEEK_SET)
1021	const_eio (SEEK_CUR)	1228	const_eio (SEEK_CUR)
1022	const_eio (SEEK_END)	1229	const_eio (SEEK_END)
1023		1230
…		…
1036		1243
1037	const_eio (FALLOC_FL_KEEP_SIZE)	1244	const_eio (FALLOC_FL_KEEP_SIZE)
1038	const_eio (FALLOC_FL_PUNCH_HOLE)	1245	const_eio (FALLOC_FL_PUNCH_HOLE)
1039	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1246	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1040	const_eio (FALLOC_FL_ZERO_RANGE)	1247	const_eio (FALLOC_FL_ZERO_RANGE)
		1248	const_eio (FALLOC_FL_INSERT_RANGE)
		1249	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1250
		1251	const_eio (RENAME_NOREPLACE)
		1252	const_eio (RENAME_EXCHANGE)
		1253	const_eio (RENAME_WHITEOUT)
1041		1254
1042	const_eio (READDIR_DENTS)	1255	const_eio (READDIR_DENTS)
1043	const_eio (READDIR_DIRS_FIRST)	1256	const_eio (READDIR_DIRS_FIRST)
1044	const_eio (READDIR_STAT_ORDER)	1257	const_eio (READDIR_STAT_ORDER)
1045	const_eio (READDIR_FOUND_UNKNOWN)	1258	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1296	REQ_SEND;	1509	REQ_SEND;
1297	}	1510	}
1298	}	1511	}
1299		1512
1300	void	1513	void
		1514	aio_ioctl (SV fh, unsigned long request, SV8 arg, SV *callback = &PL_sv_undef)
		1515	ALIAS:
		1516	aio_ioctl = EIO_IOCTL
		1517	aio_fcntl = EIO_FCNTL
		1518	PPCODE:
		1519	{
		1520	int fd = s_fileno_croak (fh, 0);
		1521	char *svptr;
		1522
		1523	if (SvPOK (arg) \|\| !SvNIOK (arg))
		1524	{
		1525	STRLEN svlen;
		1526	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1527	#ifdef IOCPARM_LEN
		1528	STRLEN need = IOCPARM_LEN (request);
		1529	#else
		1530	STRLEN need = 256;
		1531	#endif
		1532
		1533	if (svlen < need)
		1534	svptr = SvGROW (arg, need);
		1535	}
		1536	else
		1537	svptr = (char *)SvIV (arg);
		1538
		1539	{
		1540	dREQ;
		1541
		1542	req->type = ix;
		1543	req->sv1 = newSVsv (fh);
		1544	req->int1 = fd;
		1545	req->int2 = (long)request;
		1546	req->sv2 = SvREFCNT_inc (arg);
		1547	req->ptr2 = svptr;
		1548
		1549	REQ_SEND;
		1550	}
		1551	}
		1552
		1553	void
1301	aio_readlink (SV8 pathname, SV callback = &PL_sv_undef)	1554	aio_readlink (SV8 pathname, SV callback = &PL_sv_undef)
1302	ALIAS:	1555	ALIAS:
1303	aio_readlink = EIO_READLINK	1556	aio_readlink = EIO_READLINK
1304	aio_realpath = EIO_REALPATH	1557	aio_realpath = EIO_REALPATH
1305	PPCODE:	1558	PPCODE:
…		…
1365	UV	1618	UV
1366	major (UV dev)	1619	major (UV dev)
1367	ALIAS:	1620	ALIAS:
1368	minor = 1	1621	minor = 1
1369	CODE:	1622	CODE:
1370	RETVAL = ix ? major (dev) : minor (dev);	1623	RETVAL = ix ? minor (dev) : major (dev);
1371	OUTPUT:	1624	OUTPUT:
1372	RETVAL	1625	RETVAL
1373		1626
1374	UV	1627	UV
1375	makedev (UV maj, UV min)	1628	makedev (UV maj, UV min)
…		…
1492		1745
1493	REQ_SEND;	1746	REQ_SEND;
1494	}	1747	}
1495		1748
1496	void	1749	void
		1750	aio_rename2 (SV8 oldpath, SV8 newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1751	PPCODE:
		1752	{
		1753	eio_wd wd2 = 0;
		1754	dREQ;
		1755
		1756	req->type = EIO_RENAME;
		1757	req_set_path1 (req, oldpath);
		1758	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1759	req->int2 = flags;
		1760	req->int3 = (long)wd2;
		1761
		1762	REQ_SEND;
		1763	}
		1764
		1765	void
1497	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)	1766	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)
1498	PPCODE:	1767	PPCODE:
1499	{	1768	{
1500	dREQ;	1769	dREQ;
1501		1770
…		…
1506		1775
1507	REQ_SEND;	1776	REQ_SEND;
1508	}	1777	}
1509		1778
1510	void	1779	void
1511	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1780	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1512	ALIAS:	1781	ALIAS:
1513	aio_mtouch = EIO_MTOUCH	1782	aio_mtouch = EIO_MTOUCH
1514	aio_msync = EIO_MSYNC	1783	aio_msync = EIO_MSYNC
1515	PPCODE:	1784	PPCODE:
1516	{	1785	{
1517	STRLEN svlen;	1786	STRLEN svlen;
1518	char *svptr = SvPVbyte (data, svlen);	1787	char *svptr = SvPVbyte (data, svlen);
1519	UV len = SvUV (length);	1788	UV len = SvUV (length);
		1789
		1790	if (flags < 0)
		1791	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1520		1792
1521	if (offset < 0)	1793	if (offset < 0)
1522	offset += svlen;	1794	offset += svlen;
1523		1795
1524	if (offset < 0 \|\| offset > svlen)	1796	if (offset < 0 \|\| offset > svlen)
…		…
1600	req->int2 = flags;	1872	req->int2 = flags;
1601	req->int3 = SvOK (count) ? SvIV (count) : -1;	1873	req->int3 = SvOK (count) ? SvIV (count) : -1;
1602	#endif	1874	#endif
1603		1875
1604	REQ_SEND;	1876	REQ_SEND;
		1877	}
		1878
		1879	void
		1880	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1881	PPCODE:
		1882	{
		1883	char *svptr = 0;
		1884
		1885	sv_clear_foreign (data);
		1886
		1887	if (length) /* known length, directly read into scalar */
		1888	{
		1889	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1890	svptr = sv_grow (data, length + 1);
		1891	else if (SvCUR (data) < length)
		1892	croak ("length outside of scalar, and cannot grow");
		1893	else
		1894	svptr = SvPVbyte_nolen (data);
		1895	}
		1896
		1897	{
		1898	dREQ;
		1899
		1900	req->type = EIO_SLURP;
		1901	req_set_path1 (req, pathname);
		1902	req->offs = offset;
		1903	req->size = length;
		1904	req->sv2 = SvREFCNT_inc (data);
		1905	req->ptr2 = svptr;
		1906
		1907	if (!SvREADONLY (data))
		1908	{
		1909	SvREADONLY_on (data);
		1910	req->flags \|= FLAG_SV2_RO_OFF;
		1911	}
		1912
		1913	REQ_SEND;
		1914	}
1605	}	1915	}
1606		1916
1607	void	1917	void
1608	aio_busy (double delay, SV *callback = &PL_sv_undef)	1918	aio_busy (double delay, SV *callback = &PL_sv_undef)
1609	PPCODE:	1919	PPCODE:
…		…
1746	RETVAL	2056	RETVAL
1747		2057
1748	void	2058	void
1749	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2059	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1750	PPCODE:	2060	PPCODE:
1751	sv_unmagic (scalar, MMAP_MAGIC);	2061	sv_clear_foreign (scalar);
1752	{	2062	{
1753	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2063	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1754	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2064	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1755	if (addr == (void *)-1)	2065	if (addr == (void *)-1)
1756	XSRETURN_NO;	2066	XSRETURN_NO;
1757		2067
1758	sv_force_normal (scalar);	2068	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1759
1760	/* we store the length in mg_obj, as namlen is I32 :/ */
1761	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1762	->mg_obj = (SV *)length;
1763
1764	SvUPGRADE (scalar, SVt_PV); /* nop... */
1765		2069
1766	if (!(prot & PROT_WRITE))	2070	if (!(prot & PROT_WRITE))
1767	SvREADONLY_on (scalar);	2071	SvREADONLY_on (scalar);
1768		2072
1769	if (SvLEN (scalar))
1770	Safefree (SvPVX (scalar));
1771
1772	SvPVX (scalar) = (char *)addr;
1773	SvCUR_set (scalar, length);
1774	SvLEN_set (scalar, 0);
1775	SvPOK_only (scalar);
1776
1777	XSRETURN_YES;	2073	XSRETURN_YES;
1778	}	2074	}
1779		2075
1780	void	2076	void
1781	munmap (SV *scalar)	2077	munmap (SV *scalar)
1782	CODE:	2078	CODE:
1783	sv_unmagic (scalar, MMAP_MAGIC);	2079	sv_clear_foreign (scalar);
		2080
		2081	SV *
		2082	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2083	CODE:
		2084	{
		2085	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2086	void *new;
		2087
		2088	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2089	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2090
		2091	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2092
		2093	RETVAL = &PL_sv_no;
		2094
		2095	if (new != (void *)-1)
		2096	{
		2097	RETVAL = new == (void *)mg->mg_ptr
		2098	? newSVpvn ("0 but true", 10)
		2099	: &PL_sv_yes;
		2100
		2101	mg->mg_ptr = (char *)new;
		2102	mg->mg_obj = (SV *)new_length;
		2103
		2104	SvPVX (scalar) = mg->mg_ptr;
		2105	SvCUR_set (scalar, new_length);
		2106	}
		2107	}
		2108	OUTPUT:
		2109	RETVAL
1784		2110
1785	int	2111	int
1786	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2112	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1787	ALIAS:	2113	ALIAS:
1788	mprotect = 1	2114	mprotect = 1
…		…
1918	{	2244	{
1919	EXTEND (SP, 2);	2245	EXTEND (SP, 2);
1920	PUSHs (newmortalFH (fd[0], O_RDONLY));	2246	PUSHs (newmortalFH (fd[0], O_RDONLY));
1921	PUSHs (newmortalFH (fd[1], O_WRONLY));	2247	PUSHs (newmortalFH (fd[1], O_WRONLY));
1922	}	2248	}
		2249	}
		2250
		2251	void
		2252	eventfd (unsigned int initval = 0, int flags = 0)
		2253	PPCODE:
		2254	{
		2255	int fd;
		2256	#if HAVE_EVENTFD
		2257	fd = eventfd (initval, flags);
		2258	#else
		2259	fd = (errno = ENOSYS, -1);
		2260	#endif
		2261
		2262	XPUSHs (newmortalFH (fd, O_RDWR));
		2263	}
		2264
		2265	void
		2266	timerfd_create (int clockid, int flags = 0)
		2267	PPCODE:
		2268	{
		2269	int fd;
		2270	#if HAVE_TIMERFD
		2271	fd = timerfd_create (clockid, flags);
		2272	#else
		2273	fd = (errno = ENOSYS, -1);
		2274	#endif
		2275
		2276	XPUSHs (newmortalFH (fd, O_RDWR));
		2277	}
		2278
		2279	void
		2280	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2281	PPCODE:
		2282	{
		2283	int fd = s_fileno_croak (fh, 0);
		2284	#if HAVE_TIMERFD
		2285	int res;
		2286	struct itimerspec its, ots;
		2287
		2288	ts_set (&its.it_interval, interval);
		2289	ts_set (&its.it_value , value);
		2290	res = timerfd_settime (fd, flags, &its, &ots);
		2291
		2292	if (!res)
		2293	{
		2294	EXTEND (SP, 2);
		2295	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2296	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2297	}
		2298	#else
		2299	errno = ENOSYS;
		2300	#endif
		2301	}
		2302
		2303	void
		2304	timerfd_gettime (SV *fh)
		2305	PPCODE:
		2306	{
		2307	int fd = s_fileno_croak (fh, 0);
		2308	#if HAVE_TIMERFD
		2309	int res;
		2310	struct itimerspec ots;
		2311	res = timerfd_gettime (fd, &ots);
		2312
		2313	if (!res)
		2314	{
		2315	EXTEND (SP, 2);
		2316	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2317	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2318	}
		2319	#else
		2320	errno = ENOSYS;
		2321	#endif
		2322	}
		2323
		2324	UV
		2325	get_fdlimit ()
		2326	CODE:
		2327	#if HAVE_RLIMITS
		2328	struct rlimit rl;
		2329	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2330	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2331	#endif
		2332	XSRETURN_UNDEF;
		2333	OUTPUT:
		2334	RETVAL
		2335
		2336	void
		2337	min_fdlimit (UV limit = 0x7fffffffU)
		2338	CODE:
		2339	{
		2340	#if HAVE_RLIMITS
		2341	struct rlimit rl;
		2342	rlim_t orig_rlim_max;
		2343	UV bit;
		2344
		2345	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2346	goto fail;
		2347
		2348	if (rl.rlim_cur == RLIM_INFINITY)
		2349	XSRETURN_YES;
		2350
		2351	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2352
		2353	if (rl.rlim_cur < limit)
		2354	{
		2355	rl.rlim_cur = limit;
		2356
		2357	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2358	rl.rlim_max = rl.rlim_cur;
		2359	}
		2360
		2361	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2362	XSRETURN_YES;
		2363
		2364	if (errno == EPERM)
		2365	{
		2366	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2367	/* our limit overflows a system-wide limit */
		2368	/* try an adaptive algorithm, but do not lower the hardlimit */
		2369	rl.rlim_max = 0;
		2370	for (bit = 0x40000000U; bit; bit >>= 1)
		2371	{
		2372	rl.rlim_max \|= bit;
		2373	rl.rlim_cur = rl.rlim_max;
		2374
		2375	/* nevr decrease the hard limit */
		2376	if (rl.rlim_max < orig_rlim_max)
		2377	break;
		2378
		2379	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2380	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2381	}
		2382
		2383	/* now, raise the soft limit to the max permitted */
		2384	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2385	{
		2386	rl.rlim_cur = rl.rlim_max;
		2387	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2388	errno = EPERM;
		2389	}
		2390	}
		2391	#endif
		2392	fail:
		2393	XSRETURN_UNDEF;
1923	}	2394	}
1924		2395
1925	void _on_next_submit (SV *cb)	2396	void _on_next_submit (SV *cb)
1926	CODE:	2397	CODE:
1927	SvREFCNT_dec (on_next_submit);	2398	SvREFCNT_dec (on_next_submit);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.238 by root, Thu Jan 21 23:04:46 2016 UTC vs. Revision 1.261 by root, Tue Jul 24 19:32:20 2018 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.238 by root, Thu Jan 21 23:04:46 2016 UTC vs.
Revision 1.261 by root, Tue Jul 24 19:32:20 2018 UTC