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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.240 by root, Tue Feb 23 19:42:59 2016 UTC vs.
Revision 1.258 by root, Wed Jul 18 00:57:55 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
…		…
21	# include <sys/mman.h>	23	# include <sys/mman.h>
22	#endif	24	#endif
23		25
24	/* the incompetent fool that created musl keeps __linux__, refuses	26	/* the incompetent fool that created musl keeps __linux__, refuses
25	* to implement any linux standard apis, and also has no way to test	27	* 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.	28	* for his broken iplementation. don't complain to me if this fails
		29	* for you.
27	*/	30	*/
28	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)	31	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)
29	# include <linux/fs.h>	32	# include <linux/fs.h>
30	# ifdef FS_IOC_FIEMAP	33	# ifdef FS_IOC_FIEMAP
31	# include <linux/types.h>	34	# include <linux/types.h>
…		…
103	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
104	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
105		108
106	/*****************************************************************************/	109	/*****************************************************************************/
107		110
		111	#include "libeio/config.h"
		112
		113	#include "schmorp.h"
		114
		115	#if HAVE_EVENTFD
		116	# include <sys/eventfd.h>
		117	#endif
		118
		119	#if HAVE_TIMERFD
		120	# include <sys/timerfd.h>
		121	#endif
		122
		123	#if HAVE_RLIMITS
		124	#include <sys/time.h>
		125	#include <sys/resource.h>
		126	#endif
		127
108	typedef SV SV8; /* byte-sv, used for argument-checking */	128	typedef SV SV8; /* byte-sv, used for argument-checking */
109	typedef int aio_rfd; /* read file desriptor */	129	typedef int aio_rfd; /* read file desriptor */
110	typedef int aio_wfd; /* write file descriptor */	130	typedef int aio_wfd; /* write file descriptor */
111		131
112	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;	132	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
…		…
118	STRLEN stroffset; \	138	STRLEN stroffset; \
119	SV *self;	139	SV *self;
120		140
121	#define EIO_NO_WRAPPERS 1	141	#define EIO_NO_WRAPPERS 1
122		142
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	143	#include "libeio/eio.h"
125		144
126	static int req_invoke (eio_req *req);	145	static int req_invoke (eio_req *req);
127	#define EIO_FINISH(req) req_invoke (req)	146	#define EIO_FINISH(req) req_invoke (req)
128	static void req_destroy (eio_req *grp);	147	static void req_destroy (eio_req *grp);
…		…
161	#endif	180	#endif
162		181
163	#if PAGESIZE <= 0	182	#if PAGESIZE <= 0
164	# define PAGESIZE sysconf (_SC_PAGESIZE)	183	# define PAGESIZE sysconf (_SC_PAGESIZE)
165	#endif	184	#endif
		185
		186	/*****************************************************************************/
		187
		188	#if !_POSIX_MAPPED_FILES
		189	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		190	# define munmap(addr,length) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !_POSIX_MEMORY_PROTECTION
		194	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		195	#endif
		196
		197	#if !MREMAP_MAYMOVE
		198	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		199	#endif
		200
		201	#define FOREIGN_MAGIC PERL_MAGIC_ext
		202
		203	static int ecb_cold
		204	mmap_free (pTHX_ SV sv, MAGIC mg)
		205	{
		206	int old_errno = errno;
		207	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		208	errno = old_errno;
		209
		210	mg->mg_obj = 0; /* just in case */
		211
		212	SvREADONLY_off (sv);
		213
		214	if (SvPVX (sv) != mg->mg_ptr)
		215	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		216
		217	SvCUR_set (sv, 0);
		218	SvPVX (sv) = 0;
		219	SvOK_off (sv);
		220
		221	return 0;
		222	}
		223
		224	static MGVTBL mmap_vtbl = {
		225	0, 0, 0, 0, mmap_free
		226	};
		227
		228	static int ecb_cold
		229	sysfree_free (pTHX_ SV sv, MAGIC mg)
		230	{
		231	free (mg->mg_ptr);
		232	mg->mg_obj = 0; /* just in case */
		233
		234	SvREADONLY_off (sv);
		235
		236	if (SvPVX (sv) != mg->mg_ptr)
		237	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		238
		239	SvCUR_set (sv, 0);
		240	SvPVX (sv) = 0;
		241	SvOK_off (sv);
		242
		243	return 0;
		244	}
		245
		246	static MGVTBL sysfree_vtbl = {
		247	0, 0, 0, 0, sysfree_free
		248	};
		249
		250	/*****************************************************************************/
		251
		252	/* helper: set scalar to foreign ptr with custom free */
		253	static void
		254	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		255	{
		256	sv_force_normal (sv);
		257
		258	/* we store the length in mg_obj, as namlen is I32 :/ */
		259	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		260	->mg_obj = (SV *)length;
		261
		262	SvUPGRADE (sv, SVt_PV); /* nop... */
		263
		264	if (SvLEN (sv))
		265	Safefree (SvPVX (sv));
		266
		267	SvPVX (sv) = (char *)addr;
		268	SvCUR_set (sv, length);
		269	SvLEN_set (sv, 0);
		270	SvPOK_only (sv);
		271	}
		272
		273	static void
		274	sv_clear_foreign (SV *sv)
		275	{
		276	/* todo: iterate over magic and only free ours, but of course */
		277	/* the perl5porters will call that (correct) behaviour buggy */
		278	sv_unmagic (sv, FOREIGN_MAGIC);
		279	}
166		280
167	/*****************************************************************************/	281	/*****************************************************************************/
168		282
169	static void	283	static void
170	fiemap (eio_req *req)	284	fiemap (eio_req *req)
…		…
590	SvSETMAGIC (req->sv2);	704	SvSETMAGIC (req->sv2);
591	PUSHs (sv_result);	705	PUSHs (sv_result);
592	}	706	}
593	break;	707	break;
594		708
		709	case EIO_SLURP:
		710	{
		711	if (req->result >= 0)
		712	{
		713	/* if length was originally not known, we steal the malloc'ed memory */
		714	if (req->flags & EIO_FLAG_PTR2_FREE)
		715	{
		716	req->flags &= ~EIO_FLAG_PTR2_FREE;
		717	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		718	}
		719	else
		720	{
		721	SvCUR_set (req->sv2, req->result);
		722	*SvEND (req->sv2) = 0;
		723	SvPOK_only (req->sv2);
		724	}
		725
		726	SvSETMAGIC (req->sv2);
		727	}
		728
		729	PUSHs (sv_result);
		730	}
		731	break;
		732
595	case EIO_CUSTOM:	733	case EIO_CUSTOM:
596	if (req->feed == fiemap)	734	if (req->feed == fiemap)
597	{	735	{
598	#if HAVE_FIEMAP	736	#if HAVE_FIEMAP
599	if (!req->result)	737	if (!req->result)
…		…
742	create_respipe ();	880	create_respipe ();
743		881
744	if (eio_init (want_poll, done_poll) < 0)	882	if (eio_init (want_poll, done_poll) < 0)
745	croak ("IO::AIO: unable to initialise eio library");	883	croak ("IO::AIO: unable to initialise eio library");
746	}	884	}
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		885
786	/*****************************************************************************/	886	/*****************************************************************************/
787		887
788	static SV *	888	static SV *
789	get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
…		…
885	req_set_path1 (req, fh_or_path);	985	req_set_path1 (req, fh_or_path);
886	break;	986	break;
887	}	987	}
888	}	988	}
889		989
		990	/*****************************************************************************/
		991
		992	static void
		993	ts_set (struct timespec *ts, NV value)
		994	{
		995	ts->tv_sec = value;
		996	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		997	}
		998
		999	static NV
		1000	ts_get (const struct timespec *ts)
		1001	{
		1002	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1003	}
		1004
		1005	/*****************************************************************************/
		1006
890	XS(boot_IO__AIO) ecb_cold;	1007	XS(boot_IO__AIO) ecb_cold;
891		1008
892	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
893		1010
894	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
…		…
993	const_iv (MAP_NONBLOCK)	1110	const_iv (MAP_NONBLOCK)
994	const_iv (MAP_GROWSDOWN)	1111	const_iv (MAP_GROWSDOWN)
995	const_iv (MAP_32BIT)	1112	const_iv (MAP_32BIT)
996	const_iv (MAP_HUGETLB)	1113	const_iv (MAP_HUGETLB)
997	const_iv (MAP_STACK)	1114	const_iv (MAP_STACK)
		1115
		1116	const_iv (MREMAP_MAYMOVE)
		1117	const_iv (MREMAP_FIXED)
		1118
		1119	const_iv (F_DUPFD_CLOEXEC)
		1120
		1121	const_iv (F_OFD_GETLK)
		1122	const_iv (F_OFD_SETLK)
		1123	const_iv (F_OFD_GETLKW)
		1124
		1125	const_iv (FIFREEZE)
		1126	const_iv (FITHAW)
		1127	const_iv (FITRIM)
		1128	const_iv (FICLONE)
		1129	const_iv (FICLONERANGE)
		1130	const_iv (FIDEDUPERANGE)
		1131
		1132	const_iv (FS_IOC_GETFLAGS)
		1133	const_iv (FS_IOC_SETFLAGS)
		1134	const_iv (FS_IOC_GETVERSION)
		1135	const_iv (FS_IOC_SETVERSION)
		1136	const_iv (FS_IOC_FIEMAP)
		1137	const_iv (FS_IOC_FSGETXATTR)
		1138	const_iv (FS_IOC_FSSETXATTR)
		1139	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1140	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1141	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1142
		1143	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1144
		1145	const_iv (FS_SECRM_FL)
		1146	const_iv (FS_UNRM_FL)
		1147	const_iv (FS_COMPR_FL)
		1148	const_iv (FS_SYNC_FL)
		1149	const_iv (FS_IMMUTABLE_FL)
		1150	const_iv (FS_APPEND_FL)
		1151	const_iv (FS_NODUMP_FL)
		1152	const_iv (FS_NOATIME_FL)
		1153	const_iv (FS_DIRTY_FL)
		1154	const_iv (FS_COMPRBLK_FL)
		1155	const_iv (FS_NOCOMP_FL)
		1156	const_iv (FS_ENCRYPT_FL)
		1157	const_iv (FS_BTREE_FL)
		1158	const_iv (FS_INDEX_FL)
		1159	const_iv (FS_JOURNAL_DATA_FL)
		1160	const_iv (FS_NOTAIL_FL)
		1161	const_iv (FS_DIRSYNC_FL)
		1162	const_iv (FS_TOPDIR_FL)
		1163	const_iv (FS_FL_USER_MODIFIABLE)
		1164
		1165	const_iv (FS_XFLAG_REALTIME)
		1166	const_iv (FS_XFLAG_PREALLOC)
		1167	const_iv (FS_XFLAG_IMMUTABLE)
		1168	const_iv (FS_XFLAG_APPEND)
		1169	const_iv (FS_XFLAG_SYNC)
		1170	const_iv (FS_XFLAG_NOATIME)
		1171	const_iv (FS_XFLAG_NODUMP)
		1172	const_iv (FS_XFLAG_RTINHERIT)
		1173	const_iv (FS_XFLAG_PROJINHERIT)
		1174	const_iv (FS_XFLAG_NOSYMLINKS)
		1175	const_iv (FS_XFLAG_EXTSIZE)
		1176	const_iv (FS_XFLAG_EXTSZINHERIT)
		1177	const_iv (FS_XFLAG_NODEFRAG)
		1178	const_iv (FS_XFLAG_FILESTREAM)
		1179	const_iv (FS_XFLAG_DAX)
		1180	const_iv (FS_XFLAG_HASATTR)
998		1181
999	const_iv (FIEMAP_FLAG_SYNC)	1182	const_iv (FIEMAP_FLAG_SYNC)
1000	const_iv (FIEMAP_FLAG_XATTR)	1183	const_iv (FIEMAP_FLAG_XATTR)
1001	const_iv (FIEMAP_FLAGS_COMPAT)	1184	const_iv (FIEMAP_FLAGS_COMPAT)
1002	const_iv (FIEMAP_EXTENT_LAST)	1185	const_iv (FIEMAP_EXTENT_LAST)
…		…
1014	const_iv (SPLICE_F_MOVE)	1197	const_iv (SPLICE_F_MOVE)
1015	const_iv (SPLICE_F_NONBLOCK)	1198	const_iv (SPLICE_F_NONBLOCK)
1016	const_iv (SPLICE_F_MORE)	1199	const_iv (SPLICE_F_MORE)
1017	const_iv (SPLICE_F_GIFT)	1200	const_iv (SPLICE_F_GIFT)
1018		1201
		1202	const_iv (EFD_CLOEXEC)
		1203	const_iv (EFD_NONBLOCK)
		1204	const_iv (EFD_SEMAPHORE)
		1205
		1206	const_iv (CLOCK_REALTIME)
		1207	const_iv (CLOCK_MONOTONIC)
		1208	const_iv (CLOCK_BOOTTIME)
		1209	const_iv (CLOCK_REALTIME_ALARM)
		1210	const_iv (CLOCK_BOOTTIME_ALARM)
		1211
		1212	const_iv (TFD_NONBLOCK)
		1213	const_iv (TFD_CLOEXEC)
		1214
		1215	const_iv (TFD_TIMER_ABSTIME)
		1216	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1217
1019	/* these are libeio constants, and are independent of gendef0 */	1218	/* these are libeio constants, and are independent of gendef0 */
1020	const_eio (SEEK_SET)	1219	const_eio (SEEK_SET)
1021	const_eio (SEEK_CUR)	1220	const_eio (SEEK_CUR)
1022	const_eio (SEEK_END)	1221	const_eio (SEEK_END)
1023		1222
…		…
1036		1235
1037	const_eio (FALLOC_FL_KEEP_SIZE)	1236	const_eio (FALLOC_FL_KEEP_SIZE)
1038	const_eio (FALLOC_FL_PUNCH_HOLE)	1237	const_eio (FALLOC_FL_PUNCH_HOLE)
1039	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1238	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1040	const_eio (FALLOC_FL_ZERO_RANGE)	1239	const_eio (FALLOC_FL_ZERO_RANGE)
		1240	const_eio (FALLOC_FL_INSERT_RANGE)
		1241	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1242
		1243	const_eio (RENAME_NOREPLACE)
		1244	const_eio (RENAME_EXCHANGE)
		1245	const_eio (RENAME_WHITEOUT)
1041		1246
1042	const_eio (READDIR_DENTS)	1247	const_eio (READDIR_DENTS)
1043	const_eio (READDIR_DIRS_FIRST)	1248	const_eio (READDIR_DIRS_FIRST)
1044	const_eio (READDIR_STAT_ORDER)	1249	const_eio (READDIR_STAT_ORDER)
1045	const_eio (READDIR_FOUND_UNKNOWN)	1250	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1405	UV	1610	UV
1406	major (UV dev)	1611	major (UV dev)
1407	ALIAS:	1612	ALIAS:
1408	minor = 1	1613	minor = 1
1409	CODE:	1614	CODE:
1410	RETVAL = ix ? major (dev) : minor (dev);	1615	RETVAL = ix ? minor (dev) : major (dev);
1411	OUTPUT:	1616	OUTPUT:
1412	RETVAL	1617	RETVAL
1413		1618
1414	UV	1619	UV
1415	makedev (UV maj, UV min)	1620	makedev (UV maj, UV min)
…		…
1532		1737
1533	REQ_SEND;	1738	REQ_SEND;
1534	}	1739	}
1535		1740
1536	void	1741	void
		1742	aio_rename2 (SV8 oldpath, SV8 newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1743	PPCODE:
		1744	{
		1745	eio_wd wd2 = 0;
		1746	dREQ;
		1747
		1748	req->type = EIO_RENAME;
		1749	req_set_path1 (req, oldpath);
		1750	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1751	req->int2 = flags;
		1752	req->int3 = (long)wd2;
		1753
		1754	REQ_SEND;
		1755	}
		1756
		1757	void
1537	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)	1758	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)
1538	PPCODE:	1759	PPCODE:
1539	{	1760	{
1540	dREQ;	1761	dREQ;
1541		1762
…		…
1546		1767
1547	REQ_SEND;	1768	REQ_SEND;
1548	}	1769	}
1549		1770
1550	void	1771	void
1551	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1772	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1552	ALIAS:	1773	ALIAS:
1553	aio_mtouch = EIO_MTOUCH	1774	aio_mtouch = EIO_MTOUCH
1554	aio_msync = EIO_MSYNC	1775	aio_msync = EIO_MSYNC
1555	PPCODE:	1776	PPCODE:
1556	{	1777	{
1557	STRLEN svlen;	1778	STRLEN svlen;
1558	char *svptr = SvPVbyte (data, svlen);	1779	char *svptr = SvPVbyte (data, svlen);
1559	UV len = SvUV (length);	1780	UV len = SvUV (length);
		1781
		1782	if (flags < 0)
		1783	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1560		1784
1561	if (offset < 0)	1785	if (offset < 0)
1562	offset += svlen;	1786	offset += svlen;
1563		1787
1564	if (offset < 0 \|\| offset > svlen)	1788	if (offset < 0 \|\| offset > svlen)
…		…
1640	req->int2 = flags;	1864	req->int2 = flags;
1641	req->int3 = SvOK (count) ? SvIV (count) : -1;	1865	req->int3 = SvOK (count) ? SvIV (count) : -1;
1642	#endif	1866	#endif
1643		1867
1644	REQ_SEND;	1868	REQ_SEND;
		1869	}
		1870
		1871	void
		1872	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1873	PPCODE:
		1874	{
		1875	char *svptr = 0;
		1876
		1877	sv_clear_foreign (data);
		1878
		1879	if (length) /* known length, directly read into scalar */
		1880	{
		1881	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1882	svptr = sv_grow (data, length + 1);
		1883	else if (SvCUR (data) < length)
		1884	croak ("length outside of scalar, and cannot grow");
		1885	else
		1886	svptr = SvPVbyte_nolen (data);
		1887	}
		1888
		1889	{
		1890	dREQ;
		1891
		1892	req->type = EIO_SLURP;
		1893	req_set_path1 (req, pathname);
		1894	req->offs = offset;
		1895	req->size = length;
		1896	req->sv2 = SvREFCNT_inc (data);
		1897	req->ptr2 = svptr;
		1898
		1899	if (!SvREADONLY (data))
		1900	{
		1901	SvREADONLY_on (data);
		1902	req->flags \|= FLAG_SV2_RO_OFF;
		1903	}
		1904
		1905	REQ_SEND;
		1906	}
1645	}	1907	}
1646		1908
1647	void	1909	void
1648	aio_busy (double delay, SV *callback = &PL_sv_undef)	1910	aio_busy (double delay, SV *callback = &PL_sv_undef)
1649	PPCODE:	1911	PPCODE:
…		…
1786	RETVAL	2048	RETVAL
1787		2049
1788	void	2050	void
1789	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2051	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1790	PPCODE:	2052	PPCODE:
1791	sv_unmagic (scalar, MMAP_MAGIC);	2053	sv_clear_foreign (scalar);
1792	{	2054	{
1793	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2055	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1794	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2056	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1795	if (addr == (void *)-1)	2057	if (addr == (void *)-1)
1796	XSRETURN_NO;	2058	XSRETURN_NO;
1797		2059
1798	sv_force_normal (scalar);	2060	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1799
1800	/* we store the length in mg_obj, as namlen is I32 :/ */
1801	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1802	->mg_obj = (SV *)length;
1803
1804	SvUPGRADE (scalar, SVt_PV); /* nop... */
1805		2061
1806	if (!(prot & PROT_WRITE))	2062	if (!(prot & PROT_WRITE))
1807	SvREADONLY_on (scalar);	2063	SvREADONLY_on (scalar);
1808		2064
1809	if (SvLEN (scalar))
1810	Safefree (SvPVX (scalar));
1811
1812	SvPVX (scalar) = (char *)addr;
1813	SvCUR_set (scalar, length);
1814	SvLEN_set (scalar, 0);
1815	SvPOK_only (scalar);
1816
1817	XSRETURN_YES;	2065	XSRETURN_YES;
1818	}	2066	}
1819		2067
1820	void	2068	void
1821	munmap (SV *scalar)	2069	munmap (SV *scalar)
1822	CODE:	2070	CODE:
1823	sv_unmagic (scalar, MMAP_MAGIC);	2071	sv_clear_foreign (scalar);
		2072
		2073	SV *
		2074	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2075	CODE:
		2076	{
		2077	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2078	void *new;
		2079
		2080	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2081	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2082
		2083	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2084
		2085	RETVAL = &PL_sv_no;
		2086
		2087	if (new != (void *)-1)
		2088	{
		2089	RETVAL = new == (void *)mg->mg_ptr
		2090	? newSVpvn ("0 but true", 10)
		2091	: &PL_sv_yes;
		2092
		2093	mg->mg_ptr = (char *)new;
		2094	mg->mg_obj = (SV *)new_length;
		2095
		2096	SvPVX (scalar) = mg->mg_ptr;
		2097	SvCUR_set (scalar, new_length);
		2098	}
		2099	}
		2100	OUTPUT:
		2101	RETVAL
1824		2102
1825	int	2103	int
1826	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2104	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1827	ALIAS:	2105	ALIAS:
1828	mprotect = 1	2106	mprotect = 1
…		…
1958	{	2236	{
1959	EXTEND (SP, 2);	2237	EXTEND (SP, 2);
1960	PUSHs (newmortalFH (fd[0], O_RDONLY));	2238	PUSHs (newmortalFH (fd[0], O_RDONLY));
1961	PUSHs (newmortalFH (fd[1], O_WRONLY));	2239	PUSHs (newmortalFH (fd[1], O_WRONLY));
1962	}	2240	}
		2241	}
		2242
		2243	void
		2244	eventfd (unsigned int initval = 0, int flags = 0)
		2245	PPCODE:
		2246	{
		2247	int fd;
		2248	#if HAVE_EVENTFD
		2249	fd = eventfd (initval, flags);
		2250	#else
		2251	fd = (errno = ENOSYS, -1);
		2252	#endif
		2253
		2254	XPUSHs (newmortalFH (fd, O_RDWR));
		2255	}
		2256
		2257	void
		2258	timerfd_create (int clockid, int flags = 0)
		2259	PPCODE:
		2260	{
		2261	int fd;
		2262	#if HAVE_TIMERFD
		2263	fd = timerfd_create (clockid, flags);
		2264	#else
		2265	fd = (errno = ENOSYS, -1);
		2266	#endif
		2267
		2268	XPUSHs (newmortalFH (fd, O_RDWR));
		2269	}
		2270
		2271	void
		2272	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2273	PPCODE:
		2274	{
		2275	int fd = s_fileno_croak (fh, 0);
		2276	#if HAVE_TIMERFD
		2277	int res;
		2278	struct itimerspec its, ots;
		2279
		2280	ts_set (&its.it_interval, interval);
		2281	ts_set (&its.it_value , value);
		2282	res = timerfd_settime (fd, flags, &its, &ots);
		2283
		2284	if (!res)
		2285	{
		2286	EXTEND (SP, 2);
		2287	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2288	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2289	}
		2290	#else
		2291	errno = ENOSYS;
		2292	#endif
		2293	}
		2294
		2295	void
		2296	timerfd_gettime (SV *fh)
		2297	PPCODE:
		2298	{
		2299	int fd = s_fileno_croak (fh, 0);
		2300	#if HAVE_TIMERFD
		2301	int res;
		2302	struct itimerspec ots;
		2303	res = timerfd_gettime (fd, &ots);
		2304
		2305	if (!res)
		2306	{
		2307	EXTEND (SP, 2);
		2308	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2309	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2310	}
		2311	#else
		2312	errno = ENOSYS;
		2313	#endif
		2314	}
		2315
		2316	UV
		2317	get_fdlimit ()
		2318	CODE:
		2319	#if HAVE_RLIMITS
		2320	struct rlimit rl;
		2321	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2322	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2323	#endif
		2324	XSRETURN_UNDEF;
		2325	OUTPUT:
		2326	RETVAL
		2327
		2328	void
		2329	min_fdlimit (UV limit = 0x7fffffffU)
		2330	CODE:
		2331	{
		2332	#if HAVE_RLIMITS
		2333	struct rlimit rl;
		2334	rlim_t orig_rlim_max;
		2335	UV bit;
		2336
		2337	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2338	goto fail;
		2339
		2340	if (rl.rlim_cur == RLIM_INFINITY)
		2341	XSRETURN_YES;
		2342
		2343	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2344
		2345	if (rl.rlim_cur < limit)
		2346	{
		2347	rl.rlim_cur = limit;
		2348
		2349	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2350	rl.rlim_max = rl.rlim_cur;
		2351	}
		2352
		2353	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2354	XSRETURN_YES;
		2355
		2356	if (errno == EPERM)
		2357	{
		2358	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2359	/* our limit overflows a system-wide limit */
		2360	/* try an adaptive algorithm, but do not lower the hardlimit */
		2361	rl.rlim_max = 0;
		2362	for (bit = 0x40000000U; bit; bit >>= 1)
		2363	{
		2364	rl.rlim_max \|= bit;
		2365	rl.rlim_cur = rl.rlim_max;
		2366
		2367	/* nevr decrease the hard limit */
		2368	if (rl.rlim_max < orig_rlim_max)
		2369	break;
		2370
		2371	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2372	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2373	}
		2374
		2375	/* now, raise the soft limit to the max permitted */
		2376	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2377	{
		2378	rl.rlim_cur = rl.rlim_max;
		2379	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2380	errno = EPERM;
		2381	}
		2382	}
		2383	#endif
		2384	fail:
		2385	XSRETURN_UNDEF;
1963	}	2386	}
1964		2387
1965	void _on_next_submit (SV *cb)	2388	void _on_next_submit (SV *cb)
1966	CODE:	2389	CODE:
1967	SvREFCNT_dec (on_next_submit);	2390	SvREFCNT_dec (on_next_submit);

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing IO-AIO/AIO.xs (file contents): Revision 1.240 by root, Tue Feb 23 19:42:59 2016 UTC vs. Revision 1.258 by root, Wed Jul 18 00:57:55 2018 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.240 by root, Tue Feb 23 19:42:59 2016 UTC vs.
Revision 1.258 by root, Wed Jul 18 00:57:55 2018 UTC