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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.242 by root, Tue Jul 12 20:46:33 2016 UTC vs.
Revision 1.254 by root, Tue Feb 20 05:23:47 2018 UTC

…		…
21	# include <sys/mman.h>	21	# include <sys/mman.h>
22	#endif	22	#endif
23		23
24	/* the incompetent fool that created musl keeps __linux__, refuses	24	/* the incompetent fool that created musl keeps __linux__, refuses
25	* to implement any linux standard apis, and also has no way to test	25	* 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.	26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
27	*/	28	*/
28	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)	29	#if __linux__ && (defined __GLIBC__ \|\| defined __UCLIBC__)
29	# include <linux/fs.h>	30	# include <linux/fs.h>
30	# ifdef FS_IOC_FIEMAP	31	# ifdef FS_IOC_FIEMAP
31	# include <linux/types.h>	32	# include <linux/types.h>
…		…
103	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
104	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
105		106
106	/*****************************************************************************/	107	/*****************************************************************************/
107		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_TIMERFD
		116	# include <sys/timerfd.h>
		117	#endif
		118
		119	#if HAVE_RLIMITS
		120	#include <sys/time.h>
		121	#include <sys/resource.h>
		122	#endif
		123
108	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
109	typedef int aio_rfd; /* read file desriptor */	125	typedef int aio_rfd; /* read file desriptor */
110	typedef int aio_wfd; /* write file descriptor */	126	typedef int aio_wfd; /* write file descriptor */
111		127
112	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;	128	static HV aio_stash, aio_req_stash, aio_grp_stash, aio_wd_stash;
…		…
118	STRLEN stroffset; \	134	STRLEN stroffset; \
119	SV *self;	135	SV *self;
120		136
121	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
122		138
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	139	#include "libeio/eio.h"
125		140
126	static int req_invoke (eio_req *req);	141	static int req_invoke (eio_req *req);
127	#define EIO_FINISH(req) req_invoke (req)	142	#define EIO_FINISH(req) req_invoke (req)
128	static void req_destroy (eio_req *grp);	143	static void req_destroy (eio_req *grp);
…		…
161	#endif	176	#endif
162		177
163	#if PAGESIZE <= 0	178	#if PAGESIZE <= 0
164	# define PAGESIZE sysconf (_SC_PAGESIZE)	179	# define PAGESIZE sysconf (_SC_PAGESIZE)
165	#endif	180	#endif
		181
		182	/*****************************************************************************/
		183
		184	#if !_POSIX_MAPPED_FILES
		185	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#define FOREIGN_MAGIC PERL_MAGIC_ext
		194
		195	static int ecb_cold
		196	mmap_free (pTHX_ SV sv, MAGIC mg)
		197	{
		198	int old_errno = errno;
		199	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		200	errno = old_errno;
		201
		202	mg->mg_obj = 0; /* just in case */
		203
		204	SvREADONLY_off (sv);
		205
		206	if (SvPVX (sv) != mg->mg_ptr)
		207	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		208
		209	SvCUR_set (sv, 0);
		210	SvPVX (sv) = 0;
		211	SvOK_off (sv);
		212
		213	return 0;
		214	}
		215
		216	static MGVTBL mmap_vtbl = {
		217	0, 0, 0, 0, mmap_free
		218	};
		219
		220	static int ecb_cold
		221	sysfree_free (pTHX_ SV sv, MAGIC mg)
		222	{
		223	free (mg->mg_ptr);
		224	mg->mg_obj = 0; /* just in case */
		225
		226	SvREADONLY_off (sv);
		227
		228	if (SvPVX (sv) != mg->mg_ptr)
		229	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		230
		231	SvCUR_set (sv, 0);
		232	SvPVX (sv) = 0;
		233	SvOK_off (sv);
		234
		235	return 0;
		236	}
		237
		238	static MGVTBL sysfree_vtbl = {
		239	0, 0, 0, 0, sysfree_free
		240	};
		241
		242	/*****************************************************************************/
		243
		244	/* helper: set scalar to foreign ptr with custom free */
		245	static void
		246	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		247	{
		248	sv_force_normal (sv);
		249
		250	/* we store the length in mg_obj, as namlen is I32 :/ */
		251	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		252	->mg_obj = (SV *)length;
		253
		254	SvUPGRADE (sv, SVt_PV); /* nop... */
		255
		256	if (SvLEN (sv))
		257	Safefree (SvPVX (sv));
		258
		259	SvPVX (sv) = (char *)addr;
		260	SvCUR_set (sv, length);
		261	SvLEN_set (sv, 0);
		262	SvPOK_only (sv);
		263	}
		264
		265	static void
		266	sv_clear_foreign (SV *sv)
		267	{
		268	/* todo: iterate over magic and only free ours, but of course */
		269	/* the perl5porters will call that (correct) behaviour buggy */
		270	sv_unmagic (sv, FOREIGN_MAGIC);
		271	}
166		272
167	/*****************************************************************************/	273	/*****************************************************************************/
168		274
169	static void	275	static void
170	fiemap (eio_req *req)	276	fiemap (eio_req *req)
…		…
590	SvSETMAGIC (req->sv2);	696	SvSETMAGIC (req->sv2);
591	PUSHs (sv_result);	697	PUSHs (sv_result);
592	}	698	}
593	break;	699	break;
594		700
		701	case EIO_SLURP:
		702	{
		703	if (req->result >= 0)
		704	{
		705	/* if length was originally not known, we steal the malloc'ed memory */
		706	if (req->flags & EIO_FLAG_PTR2_FREE)
		707	{
		708	req->flags &= ~EIO_FLAG_PTR2_FREE;
		709	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		710	}
		711	else
		712	{
		713	SvCUR_set (req->sv2, req->result);
		714	*SvEND (req->sv2) = 0;
		715	SvPOK_only (req->sv2);
		716	}
		717
		718	SvSETMAGIC (req->sv2);
		719	}
		720
		721	PUSHs (sv_result);
		722	}
		723	break;
		724
595	case EIO_CUSTOM:	725	case EIO_CUSTOM:
596	if (req->feed == fiemap)	726	if (req->feed == fiemap)
597	{	727	{
598	#if HAVE_FIEMAP	728	#if HAVE_FIEMAP
599	if (!req->result)	729	if (!req->result)
…		…
742	create_respipe ();	872	create_respipe ();
743		873
744	if (eio_init (want_poll, done_poll) < 0)	874	if (eio_init (want_poll, done_poll) < 0)
745	croak ("IO::AIO: unable to initialise eio library");	875	croak ("IO::AIO: unable to initialise eio library");
746	}	876	}
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		877
786	/*****************************************************************************/	878	/*****************************************************************************/
787		879
788	static SV *	880	static SV *
789	get_cb (SV *cb_sv)	881	get_cb (SV *cb_sv)
…		…
885	req_set_path1 (req, fh_or_path);	977	req_set_path1 (req, fh_or_path);
886	break;	978	break;
887	}	979	}
888	}	980	}
889		981
		982	/*****************************************************************************/
		983
		984	static void
		985	ts_set (struct timespec *ts, NV value)
		986	{
		987	ts->tv_sec = value;
		988	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		989	}
		990
		991	static NV
		992	ts_get (const struct timespec *ts)
		993	{
		994	return ts->tv_sec + ts->tv_nsec * 1e-9;
		995	}
		996
		997	/*****************************************************************************/
		998
890	XS(boot_IO__AIO) ecb_cold;	999	XS(boot_IO__AIO) ecb_cold;
891		1000
892	MODULE = IO::AIO PACKAGE = IO::AIO	1001	MODULE = IO::AIO PACKAGE = IO::AIO
893		1002
894	PROTOTYPES: ENABLE	1003	PROTOTYPES: ENABLE
…		…
923	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)	1032	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
924	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)	1033	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
925	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1034	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1035	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1036	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928	const_niv (MADV_FREE , POSIX_MADV_FREE)
929		1037
930	/* the second block will be 0 when missing */	1038	/* the second block will be 0 when missing */
931	const_iv (O_RDONLY)	1039	const_iv (O_RDONLY)
932	const_iv (O_WRONLY)	1040	const_iv (O_WRONLY)
933	const_iv (O_RDWR)	1041	const_iv (O_RDWR)
…		…
994	const_iv (MAP_NONBLOCK)	1102	const_iv (MAP_NONBLOCK)
995	const_iv (MAP_GROWSDOWN)	1103	const_iv (MAP_GROWSDOWN)
996	const_iv (MAP_32BIT)	1104	const_iv (MAP_32BIT)
997	const_iv (MAP_HUGETLB)	1105	const_iv (MAP_HUGETLB)
998	const_iv (MAP_STACK)	1106	const_iv (MAP_STACK)
		1107
		1108	const_iv (F_DUPFD_CLOEXEC)
		1109
		1110	const_iv (F_OFD_GETLK)
		1111	const_iv (F_OFD_SETLK)
		1112	const_iv (F_OFD_GETLKW)
		1113
		1114	const_iv (FIFREEZE)
		1115	const_iv (FITHAW)
		1116	const_iv (FITRIM)
		1117	const_iv (FICLONE)
		1118	const_iv (FICLONERANGE)
		1119	const_iv (FIDEDUPERANGE)
		1120
		1121	const_iv (FS_IOC_GETFLAGS)
		1122	const_iv (FS_IOC_SETFLAGS)
		1123	const_iv (FS_IOC_GETVERSION)
		1124	const_iv (FS_IOC_SETVERSION)
		1125	const_iv (FS_IOC_FIEMAP)
		1126	const_iv (FS_IOC_FSGETXATTR)
		1127	const_iv (FS_IOC_FSSETXATTR)
		1128	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1129	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1130	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1131
		1132	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1133
		1134	const_iv (FS_SECRM_FL)
		1135	const_iv (FS_UNRM_FL)
		1136	const_iv (FS_COMPR_FL)
		1137	const_iv (FS_SYNC_FL)
		1138	const_iv (FS_IMMUTABLE_FL)
		1139	const_iv (FS_APPEND_FL)
		1140	const_iv (FS_NODUMP_FL)
		1141	const_iv (FS_NOATIME_FL)
		1142	const_iv (FS_DIRTY_FL)
		1143	const_iv (FS_COMPRBLK_FL)
		1144	const_iv (FS_NOCOMP_FL)
		1145	const_iv (FS_ENCRYPT_FL)
		1146	const_iv (FS_BTREE_FL)
		1147	const_iv (FS_INDEX_FL)
		1148	const_iv (FS_JOURNAL_DATA_FL)
		1149	const_iv (FS_NOTAIL_FL)
		1150	const_iv (FS_DIRSYNC_FL)
		1151	const_iv (FS_TOPDIR_FL)
		1152	const_iv (FS_FL_USER_MODIFIABLE)
		1153
		1154	const_iv (FS_XFLAG_REALTIME)
		1155	const_iv (FS_XFLAG_PREALLOC)
		1156	const_iv (FS_XFLAG_IMMUTABLE)
		1157	const_iv (FS_XFLAG_APPEND)
		1158	const_iv (FS_XFLAG_SYNC)
		1159	const_iv (FS_XFLAG_NOATIME)
		1160	const_iv (FS_XFLAG_NODUMP)
		1161	const_iv (FS_XFLAG_RTINHERIT)
		1162	const_iv (FS_XFLAG_PROJINHERIT)
		1163	const_iv (FS_XFLAG_NOSYMLINKS)
		1164	const_iv (FS_XFLAG_EXTSIZE)
		1165	const_iv (FS_XFLAG_EXTSZINHERIT)
		1166	const_iv (FS_XFLAG_NODEFRAG)
		1167	const_iv (FS_XFLAG_FILESTREAM)
		1168	const_iv (FS_XFLAG_DAX)
		1169	const_iv (FS_XFLAG_HASATTR)
999		1170
1000	const_iv (FIEMAP_FLAG_SYNC)	1171	const_iv (FIEMAP_FLAG_SYNC)
1001	const_iv (FIEMAP_FLAG_XATTR)	1172	const_iv (FIEMAP_FLAG_XATTR)
1002	const_iv (FIEMAP_FLAGS_COMPAT)	1173	const_iv (FIEMAP_FLAGS_COMPAT)
1003	const_iv (FIEMAP_EXTENT_LAST)	1174	const_iv (FIEMAP_EXTENT_LAST)
…		…
1015	const_iv (SPLICE_F_MOVE)	1186	const_iv (SPLICE_F_MOVE)
1016	const_iv (SPLICE_F_NONBLOCK)	1187	const_iv (SPLICE_F_NONBLOCK)
1017	const_iv (SPLICE_F_MORE)	1188	const_iv (SPLICE_F_MORE)
1018	const_iv (SPLICE_F_GIFT)	1189	const_iv (SPLICE_F_GIFT)
1019		1190
		1191	const_iv (EFD_CLOEXEC)
		1192	const_iv (EFD_NONBLOCK)
		1193	const_iv (EFD_SEMAPHORE)
		1194
		1195	const_iv (CLOCK_REALTIME)
		1196	const_iv (CLOCK_MONOTONIC)
		1197	const_iv (CLOCK_BOOTTIME)
		1198	const_iv (CLOCK_REALTIME_ALARM)
		1199	const_iv (CLOCK_BOOTTIME_ALARM)
		1200
		1201	const_iv (TFD_NONBLOCK)
		1202	const_iv (TFD_CLOEXEC)
		1203
		1204	const_iv (TFD_TIMER_ABSTIME)
		1205	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1206
1020	/* these are libeio constants, and are independent of gendef0 */	1207	/* these are libeio constants, and are independent of gendef0 */
1021	const_eio (SEEK_SET)	1208	const_eio (SEEK_SET)
1022	const_eio (SEEK_CUR)	1209	const_eio (SEEK_CUR)
1023	const_eio (SEEK_END)	1210	const_eio (SEEK_END)
1024		1211
…		…
1037		1224
1038	const_eio (FALLOC_FL_KEEP_SIZE)	1225	const_eio (FALLOC_FL_KEEP_SIZE)
1039	const_eio (FALLOC_FL_PUNCH_HOLE)	1226	const_eio (FALLOC_FL_PUNCH_HOLE)
1040	const_eio (FALLOC_FL_COLLAPSE_RANGE)	1227	const_eio (FALLOC_FL_COLLAPSE_RANGE)
1041	const_eio (FALLOC_FL_ZERO_RANGE)	1228	const_eio (FALLOC_FL_ZERO_RANGE)
		1229	const_eio (FALLOC_FL_INSERT_RANGE)
		1230	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1231
		1232	const_eio (RENAME_NOREPLACE)
		1233	const_eio (RENAME_EXCHANGE)
		1234	const_eio (RENAME_WHITEOUT)
1042		1235
1043	const_eio (READDIR_DENTS)	1236	const_eio (READDIR_DENTS)
1044	const_eio (READDIR_DIRS_FIRST)	1237	const_eio (READDIR_DIRS_FIRST)
1045	const_eio (READDIR_STAT_ORDER)	1238	const_eio (READDIR_STAT_ORDER)
1046	const_eio (READDIR_FOUND_UNKNOWN)	1239	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1533		1726
1534	REQ_SEND;	1727	REQ_SEND;
1535	}	1728	}
1536		1729
1537	void	1730	void
		1731	aio_rename2 (SV8 oldpath, SV8 newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	eio_wd wd2 = 0;
		1735	dREQ;
		1736
		1737	req->type = EIO_RENAME;
		1738	req_set_path1 (req, oldpath);
		1739	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1740	req->int2 = flags;
		1741	req->int3 = (long)wd2;
		1742
		1743	REQ_SEND;
		1744	}
		1745
		1746	void
1538	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)	1747	aio_mknod (SV8 pathname, int mode, UV dev, SV callback = &PL_sv_undef)
1539	PPCODE:	1748	PPCODE:
1540	{	1749	{
1541	dREQ;	1750	dREQ;
1542		1751
…		…
1547		1756
1548	REQ_SEND;	1757	REQ_SEND;
1549	}	1758	}
1550		1759
1551	void	1760	void
1552	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)	1761	aio_mtouch (SV8 data, IV offset = 0, SV length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1553	ALIAS:	1762	ALIAS:
1554	aio_mtouch = EIO_MTOUCH	1763	aio_mtouch = EIO_MTOUCH
1555	aio_msync = EIO_MSYNC	1764	aio_msync = EIO_MSYNC
1556	PPCODE:	1765	PPCODE:
1557	{	1766	{
1558	STRLEN svlen;	1767	STRLEN svlen;
1559	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1560	UV len = SvUV (length);	1769	UV len = SvUV (length);
		1770
		1771	if (flags < 0)
		1772	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1561		1773
1562	if (offset < 0)	1774	if (offset < 0)
1563	offset += svlen;	1775	offset += svlen;
1564		1776
1565	if (offset < 0 \|\| offset > svlen)	1777	if (offset < 0 \|\| offset > svlen)
…		…
1641	req->int2 = flags;	1853	req->int2 = flags;
1642	req->int3 = SvOK (count) ? SvIV (count) : -1;	1854	req->int3 = SvOK (count) ? SvIV (count) : -1;
1643	#endif	1855	#endif
1644		1856
1645	REQ_SEND;	1857	REQ_SEND;
		1858	}
		1859
		1860	void
		1861	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1862	PPCODE:
		1863	{
		1864	char *svptr = 0;
		1865
		1866	sv_clear_foreign (data);
		1867
		1868	if (length) /* known length, directly read into scalar */
		1869	{
		1870	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1871	svptr = sv_grow (data, length + 1);
		1872	else if (SvCUR (data) < length)
		1873	croak ("length outside of scalar, and cannot grow");
		1874	else
		1875	svptr = SvPVbyte_nolen (data);
		1876	}
		1877
		1878	{
		1879	dREQ;
		1880
		1881	req->type = EIO_SLURP;
		1882	req_set_path1 (req, pathname);
		1883	req->offs = offset;
		1884	req->size = length;
		1885	req->sv2 = SvREFCNT_inc (data);
		1886	req->ptr2 = svptr;
		1887
		1888	if (!SvREADONLY (data))
		1889	{
		1890	SvREADONLY_on (data);
		1891	req->flags \|= FLAG_SV2_RO_OFF;
		1892	}
		1893
		1894	REQ_SEND;
		1895	}
1646	}	1896	}
1647		1897
1648	void	1898	void
1649	aio_busy (double delay, SV *callback = &PL_sv_undef)	1899	aio_busy (double delay, SV *callback = &PL_sv_undef)
1650	PPCODE:	1900	PPCODE:
…		…
1787	RETVAL	2037	RETVAL
1788		2038
1789	void	2039	void
1790	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2040	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1791	PPCODE:	2041	PPCODE:
1792	sv_unmagic (scalar, MMAP_MAGIC);	2042	sv_clear_foreign (scalar);
1793	{	2043	{
1794	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2044	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1795	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2045	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1796	if (addr == (void *)-1)	2046	if (addr == (void *)-1)
1797	XSRETURN_NO;	2047	XSRETURN_NO;
1798		2048
1799	sv_force_normal (scalar);	2049	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1800
1801	/* we store the length in mg_obj, as namlen is I32 :/ */
1802	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1803	->mg_obj = (SV *)length;
1804
1805	SvUPGRADE (scalar, SVt_PV); /* nop... */
1806		2050
1807	if (!(prot & PROT_WRITE))	2051	if (!(prot & PROT_WRITE))
1808	SvREADONLY_on (scalar);	2052	SvREADONLY_on (scalar);
1809		2053
1810	if (SvLEN (scalar))
1811	Safefree (SvPVX (scalar));
1812
1813	SvPVX (scalar) = (char *)addr;
1814	SvCUR_set (scalar, length);
1815	SvLEN_set (scalar, 0);
1816	SvPOK_only (scalar);
1817
1818	XSRETURN_YES;	2054	XSRETURN_YES;
1819	}	2055	}
1820		2056
1821	void	2057	void
1822	munmap (SV *scalar)	2058	munmap (SV *scalar)
1823	CODE:	2059	CODE:
1824	sv_unmagic (scalar, MMAP_MAGIC);	2060	sv_clear_foreign (scalar);
1825		2061
1826	int	2062	int
1827	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2063	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1828	ALIAS:	2064	ALIAS:
1829	mprotect = 1	2065	mprotect = 1
…		…
1959	{	2195	{
1960	EXTEND (SP, 2);	2196	EXTEND (SP, 2);
1961	PUSHs (newmortalFH (fd[0], O_RDONLY));	2197	PUSHs (newmortalFH (fd[0], O_RDONLY));
1962	PUSHs (newmortalFH (fd[1], O_WRONLY));	2198	PUSHs (newmortalFH (fd[1], O_WRONLY));
1963	}	2199	}
		2200	}
		2201
		2202	void
		2203	eventfd (unsigned int initval = 0, int flags = 0)
		2204	PPCODE:
		2205	{
		2206	int fd;
		2207	#if HAVE_EVENTFD
		2208	fd = eventfd (initval, flags);
		2209	#else
		2210	fd = (errno = ENOSYS, -1);
		2211	#endif
		2212
		2213	XPUSHs (newmortalFH (fd, O_RDWR));
		2214	}
		2215
		2216	void
		2217	timerfd_create (int clockid, int flags = 0)
		2218	PPCODE:
		2219	{
		2220	int fd;
		2221	#if HAVE_TIMERFD
		2222	fd = timerfd_create (clockid, flags);
		2223	#else
		2224	fd = (errno = ENOSYS, -1);
		2225	#endif
		2226
		2227	XPUSHs (newmortalFH (fd, O_RDWR));
		2228	}
		2229
		2230	void
		2231	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2232	PPCODE:
		2233	{
		2234	int fd = s_fileno_croak (fh, 0);
		2235	int res;
		2236	struct itimerspec its, ots;
		2237
		2238	ts_set (&its.it_interval, interval);
		2239	ts_set (&its.it_value , value);
		2240	#if HAVE_TIMERFD
		2241	res = timerfd_settime (fd, flags, &its, &ots);
		2242	#else
		2243	res = (errno = ENOSYS, -1);
		2244	#endif
		2245
		2246	if (!res)
		2247	{
		2248	EXTEND (SP, 2);
		2249	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2250	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2251	}
		2252	}
		2253
		2254	void
		2255	timerfd_gettime (SV *fh)
		2256	PPCODE:
		2257	{
		2258	int fd = s_fileno_croak (fh, 0);
		2259	int res;
		2260	struct itimerspec ots;
		2261	#if HAVE_TIMERFD
		2262	res = timerfd_gettime (fd, &ots);
		2263	#else
		2264	res = (errno = ENOSYS, -1);
		2265	#endif
		2266
		2267	if (!res)
		2268	{
		2269	EXTEND (SP, 2);
		2270	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2271	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2272	}
		2273	}
		2274
		2275	UV
		2276	get_fdlimit ()
		2277	CODE:
		2278	#if HAVE_RLIMITS
		2279	struct rlimit rl;
		2280	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2281	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2282	#endif
		2283	XSRETURN_UNDEF;
		2284	OUTPUT:
		2285	RETVAL
		2286
		2287	void
		2288	min_fdlimit (UV limit = 0x7fffffffU)
		2289	CODE:
		2290	{
		2291	#if HAVE_RLIMITS
		2292	struct rlimit rl;
		2293	rlim_t orig_rlim_max;
		2294	UV bit;
		2295
		2296	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2297	goto fail;
		2298
		2299	if (rl.rlim_cur == RLIM_INFINITY)
		2300	XSRETURN_YES;
		2301
		2302	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2303
		2304	if (rl.rlim_cur < limit)
		2305	{
		2306	rl.rlim_cur = limit;
		2307
		2308	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2309	rl.rlim_max = rl.rlim_cur;
		2310	}
		2311
		2312	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2313	XSRETURN_YES;
		2314
		2315	if (errno == EPERM)
		2316	{
		2317	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2318	/* our limit overflows a system-wide limit */
		2319	/* try an adaptive algorithm, but do not lower the hardlimit */
		2320	rl.rlim_max = 0;
		2321	for (bit = 0x40000000U; bit; bit >>= 1)
		2322	{
		2323	rl.rlim_max \|= bit;
		2324	rl.rlim_cur = rl.rlim_max;
		2325
		2326	/* nevr decrease the hard limit */
		2327	if (rl.rlim_max < orig_rlim_max)
		2328	break;
		2329
		2330	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2331	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2332	}
		2333
		2334	/* now, raise the soft limit to the max permitted */
		2335	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2336	{
		2337	rl.rlim_cur = rl.rlim_max;
		2338	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2339	errno = EPERM;
		2340	}
		2341	}
		2342	#endif
		2343	fail:
		2344	XSRETURN_UNDEF;
1964	}	2345	}
1965		2346
1966	void _on_next_submit (SV *cb)	2347	void _on_next_submit (SV *cb)
1967	CODE:	2348	CODE:
1968	SvREFCNT_dec (on_next_submit);	2349	SvREFCNT_dec (on_next_submit);

Diff Legend

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

Comparing IO-AIO/AIO.xs (file contents): Revision 1.242 by root, Tue Jul 12 20:46:33 2016 UTC vs. Revision 1.254 by root, Tue Feb 20 05:23:47 2018 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.242 by root, Tue Jul 12 20:46:33 2016 UTC vs.
Revision 1.254 by root, Tue Feb 20 05:23:47 2018 UTC