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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.250 by root, Fri Sep 22 05:20:39 2017 UTC vs.
Revision 1.260 by root, Tue Jul 24 04:58:59 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>
…		…
106		108
107	/*****************************************************************************/	109	/*****************************************************************************/
108		110
109	#include "libeio/config.h"	111	#include "libeio/config.h"
110		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
111	#if HAVE_RLIMITS	123	#if HAVE_RLIMITS
112	#include <sys/time.h>	124	#include <sys/time.h>
113	#include <sys/resource.h>	125	#include <sys/resource.h>
114	#endif	126	#endif
115		127
…		…
151	# else	163	# else
152	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	164	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
153	# endif	165	# endif
154	#endif	166	#endif
155		167
		168	#ifndef makedev
		169	# define makedev(maj,min) (((maj) << 8) \| (min))
		170	#endif
		171	#ifndef major
		172	# define major(dev) ((dev) >> 8)
		173	#endif
		174	#ifndef minor
		175	# define minor(dev) ((dev) & 0xff)
		176	#endif
		177
		178	#if PAGESIZE <= 0
		179	# define PAGESIZE sysconf (_SC_PAGESIZE)
		180	#endif
		181
		182	/*****************************************************************************/
		183
		184	#if !_POSIX_MAPPED_FILES
		185	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		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	#if !MREMAP_MAYMOVE
		194	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		195	#endif
		196
		197	#define FOREIGN_MAGIC PERL_MAGIC_ext
		198
		199	static int ecb_cold
		200	mmap_free (pTHX_ SV sv, MAGIC mg)
		201	{
		202	int old_errno = errno;
		203	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		204	errno = old_errno;
		205
		206	mg->mg_obj = 0; /* just in case */
		207
		208	SvREADONLY_off (sv);
		209
		210	if (SvPVX (sv) != mg->mg_ptr)
		211	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		212
		213	SvCUR_set (sv, 0);
		214	SvPVX (sv) = 0;
		215	SvOK_off (sv);
		216
		217	return 0;
		218	}
		219
		220	static MGVTBL mmap_vtbl = {
		221	0, 0, 0, 0, mmap_free
		222	};
		223
		224	static int ecb_cold
		225	sysfree_free (pTHX_ SV sv, MAGIC mg)
		226	{
		227	free (mg->mg_ptr);
		228	mg->mg_obj = 0; /* just in case */
		229
		230	SvREADONLY_off (sv);
		231
		232	if (SvPVX (sv) != mg->mg_ptr)
		233	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		234
		235	SvCUR_set (sv, 0);
		236	SvPVX (sv) = 0;
		237	SvOK_off (sv);
		238
		239	return 0;
		240	}
		241
		242	static MGVTBL sysfree_vtbl = {
		243	0, 0, 0, 0, sysfree_free
		244	};
		245
		246	/*****************************************************************************/
		247
		248	/* helper: set scalar to foreign ptr with custom free */
		249	static void
		250	sv_set_foreign (SV sv, const MGVTBL const vtbl, void *addr, IV length)
		251	{
		252	sv_force_normal (sv);
		253
		254	/* we store the length in mg_obj, as namlen is I32 :/ */
		255	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		256	->mg_obj = (SV *)length;
		257
		258	SvUPGRADE (sv, SVt_PV); /* nop... */
		259
		260	if (SvLEN (sv))
		261	Safefree (SvPVX (sv));
		262
		263	SvPVX (sv) = (char *)addr;
		264	SvCUR_set (sv, length);
		265	SvLEN_set (sv, 0);
		266	SvPOK_only (sv);
		267	}
		268
		269	static void
		270	sv_clear_foreign (SV *sv)
		271	{
		272	/* todo: iterate over magic and only free ours, but of course */
		273	/* the perl5porters will call that (correct) behaviour buggy */
		274	sv_unmagic (sv, FOREIGN_MAGIC);
		275	}
		276
		277	/*****************************************************************************/
		278
156	/* defines all sorts of constants to 0 unless they are already defined */	279	/* defines all sorts of constants to 0 unless they are already defined */
157	/* also provides const_iv_ and const_niv_ macros for them */	280	/* also provides const_iv_ and const_niv_ macros for them */
158	#include "def0.h"	281	#include "def0.h"
159
160	#ifndef makedev
161	# define makedev(maj,min) (((maj) << 8) \| (min))
162	#endif
163	#ifndef major
164	# define major(dev) ((dev) >> 8)
165	#endif
166	#ifndef minor
167	# define minor(dev) ((dev) & 0xff)
168	#endif
169
170	#if PAGESIZE <= 0
171	# define PAGESIZE sysconf (_SC_PAGESIZE)
172	#endif
173		282
174	/*****************************************************************************/	283	/*****************************************************************************/
175		284
176	static void	285	static void
177	fiemap (eio_req *req)	286	fiemap (eio_req *req)
…		…
597	SvSETMAGIC (req->sv2);	706	SvSETMAGIC (req->sv2);
598	PUSHs (sv_result);	707	PUSHs (sv_result);
599	}	708	}
600	break;	709	break;
601		710
		711	case EIO_SLURP:
		712	{
		713	if (req->result >= 0)
		714	{
		715	/* if length was originally not known, we steal the malloc'ed memory */
		716	if (req->flags & EIO_FLAG_PTR2_FREE)
		717	{
		718	req->flags &= ~EIO_FLAG_PTR2_FREE;
		719	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		720	}
		721	else
		722	{
		723	SvCUR_set (req->sv2, req->result);
		724	*SvEND (req->sv2) = 0;
		725	SvPOK_only (req->sv2);
		726	}
		727
		728	SvSETMAGIC (req->sv2);
		729	}
		730
		731	PUSHs (sv_result);
		732	}
		733	break;
		734
602	case EIO_CUSTOM:	735	case EIO_CUSTOM:
603	if (req->feed == fiemap)	736	if (req->feed == fiemap)
604	{	737	{
605	#if HAVE_FIEMAP	738	#if HAVE_FIEMAP
606	if (!req->result)	739	if (!req->result)
…		…
749	create_respipe ();	882	create_respipe ();
750		883
751	if (eio_init (want_poll, done_poll) < 0)	884	if (eio_init (want_poll, done_poll) < 0)
752	croak ("IO::AIO: unable to initialise eio library");	885	croak ("IO::AIO: unable to initialise eio library");
753	}	886	}
754
755	/*****************************************************************************/
756
757	#if !_POSIX_MAPPED_FILES
758	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
759	# define munmap(addr,length) EIO_ENOSYS ()
760	#endif
761
762	#if !_POSIX_MEMORY_PROTECTION
763	# define mprotect(addr,len,prot) EIO_ENOSYS ()
764	#endif
765
766	#define MMAP_MAGIC PERL_MAGIC_ext
767
768	static int ecb_cold
769	mmap_free (pTHX_ SV sv, MAGIC mg)
770	{
771	int old_errno = errno;
772	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
773	errno = old_errno;
774
775	mg->mg_obj = 0; /* just in case */
776
777	SvREADONLY_off (sv);
778
779	if (SvPVX (sv) != mg->mg_ptr)
780	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
781
782	SvCUR_set (sv, 0);
783	SvPVX (sv) = 0;
784	SvOK_off (sv);
785
786	return 0;
787	}
788
789	static MGVTBL mmap_vtbl = {
790	0, 0, 0, 0, mmap_free
791	};
792		887
793	/*****************************************************************************/	888	/*****************************************************************************/
794		889
795	static SV *	890	static SV *
796	get_cb (SV *cb_sv)	891	get_cb (SV *cb_sv)
…		…
892	req_set_path1 (req, fh_or_path);	987	req_set_path1 (req, fh_or_path);
893	break;	988	break;
894	}	989	}
895	}	990	}
896		991
		992	/*****************************************************************************/
		993
		994	static void
		995	ts_set (struct timespec *ts, NV value)
		996	{
		997	ts->tv_sec = value;
		998	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		999	}
		1000
		1001	static NV
		1002	ts_get (const struct timespec *ts)
		1003	{
		1004	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1005	}
		1006
		1007	/*****************************************************************************/
		1008
897	XS(boot_IO__AIO) ecb_cold;	1009	XS(boot_IO__AIO) ecb_cold;
898		1010
899	MODULE = IO::AIO PACKAGE = IO::AIO	1011	MODULE = IO::AIO PACKAGE = IO::AIO
900		1012
901	PROTOTYPES: ENABLE	1013	PROTOTYPES: ENABLE
…		…
932	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)	1044	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
933	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)	1045	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
934	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)	1046	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
935		1047
936	/* the second block will be 0 when missing */	1048	/* the second block will be 0 when missing */
		1049	const_iv (O_ACCMODE)
		1050
937	const_iv (O_RDONLY)	1051	const_iv (O_RDONLY)
938	const_iv (O_WRONLY)	1052	const_iv (O_WRONLY)
939	const_iv (O_RDWR)	1053	const_iv (O_RDWR)
940	const_iv (O_CREAT)	1054	const_iv (O_CREAT)
941	const_iv (O_TRUNC)	1055	const_iv (O_TRUNC)
…		…
1000	const_iv (MAP_NONBLOCK)	1114	const_iv (MAP_NONBLOCK)
1001	const_iv (MAP_GROWSDOWN)	1115	const_iv (MAP_GROWSDOWN)
1002	const_iv (MAP_32BIT)	1116	const_iv (MAP_32BIT)
1003	const_iv (MAP_HUGETLB)	1117	const_iv (MAP_HUGETLB)
1004	const_iv (MAP_STACK)	1118	const_iv (MAP_STACK)
		1119
		1120	const_iv (MREMAP_MAYMOVE)
		1121	const_iv (MREMAP_FIXED)
1005		1122
1006	const_iv (F_DUPFD_CLOEXEC)	1123	const_iv (F_DUPFD_CLOEXEC)
1007		1124
1008	const_iv (F_OFD_GETLK)	1125	const_iv (F_OFD_GETLK)
1009	const_iv (F_OFD_SETLK)	1126	const_iv (F_OFD_SETLK)
…		…
1084	const_iv (SPLICE_F_MOVE)	1201	const_iv (SPLICE_F_MOVE)
1085	const_iv (SPLICE_F_NONBLOCK)	1202	const_iv (SPLICE_F_NONBLOCK)
1086	const_iv (SPLICE_F_MORE)	1203	const_iv (SPLICE_F_MORE)
1087	const_iv (SPLICE_F_GIFT)	1204	const_iv (SPLICE_F_GIFT)
1088		1205
		1206	const_iv (EFD_CLOEXEC)
		1207	const_iv (EFD_NONBLOCK)
		1208	const_iv (EFD_SEMAPHORE)
		1209
		1210	const_iv (CLOCK_REALTIME)
		1211	const_iv (CLOCK_MONOTONIC)
		1212	const_iv (CLOCK_BOOTTIME)
		1213	const_iv (CLOCK_REALTIME_ALARM)
		1214	const_iv (CLOCK_BOOTTIME_ALARM)
		1215
		1216	const_iv (TFD_NONBLOCK)
		1217	const_iv (TFD_CLOEXEC)
		1218
		1219	const_iv (TFD_TIMER_ABSTIME)
		1220	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1221
1089	/* these are libeio constants, and are independent of gendef0 */	1222	/* these are libeio constants, and are independent of gendef0 */
1090	const_eio (SEEK_SET)	1223	const_eio (SEEK_SET)
1091	const_eio (SEEK_CUR)	1224	const_eio (SEEK_CUR)
1092	const_eio (SEEK_END)	1225	const_eio (SEEK_END)
1093		1226
…		…
1738		1871
1739	REQ_SEND;	1872	REQ_SEND;
1740	}	1873	}
1741		1874
1742	void	1875	void
		1876	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1877	PPCODE:
		1878	{
		1879	char *svptr = 0;
		1880
		1881	sv_clear_foreign (data);
		1882
		1883	if (length) /* known length, directly read into scalar */
		1884	{
		1885	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1886	svptr = sv_grow (data, length + 1);
		1887	else if (SvCUR (data) < length)
		1888	croak ("length outside of scalar, and cannot grow");
		1889	else
		1890	svptr = SvPVbyte_nolen (data);
		1891	}
		1892
		1893	{
		1894	dREQ;
		1895
		1896	req->type = EIO_SLURP;
		1897	req_set_path1 (req, pathname);
		1898	req->offs = offset;
		1899	req->size = length;
		1900	req->sv2 = SvREFCNT_inc (data);
		1901	req->ptr2 = svptr;
		1902
		1903	if (!SvREADONLY (data))
		1904	{
		1905	SvREADONLY_on (data);
		1906	req->flags \|= FLAG_SV2_RO_OFF;
		1907	}
		1908
		1909	REQ_SEND;
		1910	}
		1911	}
		1912
		1913	void
1743	aio_busy (double delay, SV *callback = &PL_sv_undef)	1914	aio_busy (double delay, SV *callback = &PL_sv_undef)
1744	PPCODE:	1915	PPCODE:
1745	{	1916	{
1746	dREQ;	1917	dREQ;
1747		1918
…		…
1881	RETVAL	2052	RETVAL
1882		2053
1883	void	2054	void
1884	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2055	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1885	PPCODE:	2056	PPCODE:
1886	sv_unmagic (scalar, MMAP_MAGIC);	2057	sv_clear_foreign (scalar);
1887	{	2058	{
1888	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2059	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1889	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2060	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1890	if (addr == (void *)-1)	2061	if (addr == (void *)-1)
1891	XSRETURN_NO;	2062	XSRETURN_NO;
1892		2063
1893	sv_force_normal (scalar);	2064	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1894
1895	/* we store the length in mg_obj, as namlen is I32 :/ */
1896	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1897	->mg_obj = (SV *)length;
1898
1899	SvUPGRADE (scalar, SVt_PV); /* nop... */
1900		2065
1901	if (!(prot & PROT_WRITE))	2066	if (!(prot & PROT_WRITE))
1902	SvREADONLY_on (scalar);	2067	SvREADONLY_on (scalar);
1903		2068
1904	if (SvLEN (scalar))
1905	Safefree (SvPVX (scalar));
1906
1907	SvPVX (scalar) = (char *)addr;
1908	SvCUR_set (scalar, length);
1909	SvLEN_set (scalar, 0);
1910	SvPOK_only (scalar);
1911
1912	XSRETURN_YES;	2069	XSRETURN_YES;
1913	}	2070	}
1914		2071
1915	void	2072	void
1916	munmap (SV *scalar)	2073	munmap (SV *scalar)
1917	CODE:	2074	CODE:
1918	sv_unmagic (scalar, MMAP_MAGIC);	2075	sv_clear_foreign (scalar);
		2076
		2077	SV *
		2078	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2079	CODE:
		2080	{
		2081	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2082	void *new;
		2083
		2084	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2085	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2086
		2087	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2088
		2089	RETVAL = &PL_sv_no;
		2090
		2091	if (new != (void *)-1)
		2092	{
		2093	RETVAL = new == (void *)mg->mg_ptr
		2094	? newSVpvn ("0 but true", 10)
		2095	: &PL_sv_yes;
		2096
		2097	mg->mg_ptr = (char *)new;
		2098	mg->mg_obj = (SV *)new_length;
		2099
		2100	SvPVX (scalar) = mg->mg_ptr;
		2101	SvCUR_set (scalar, new_length);
		2102	}
		2103	}
		2104	OUTPUT:
		2105	RETVAL
1919		2106
1920	int	2107	int
1921	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2108	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1922	ALIAS:	2109	ALIAS:
1923	mprotect = 1	2110	mprotect = 1
…		…
2053	{	2240	{
2054	EXTEND (SP, 2);	2241	EXTEND (SP, 2);
2055	PUSHs (newmortalFH (fd[0], O_RDONLY));	2242	PUSHs (newmortalFH (fd[0], O_RDONLY));
2056	PUSHs (newmortalFH (fd[1], O_WRONLY));	2243	PUSHs (newmortalFH (fd[1], O_WRONLY));
2057	}	2244	}
		2245	}
		2246
		2247	void
		2248	eventfd (unsigned int initval = 0, int flags = 0)
		2249	PPCODE:
		2250	{
		2251	int fd;
		2252	#if HAVE_EVENTFD
		2253	fd = eventfd (initval, flags);
		2254	#else
		2255	fd = (errno = ENOSYS, -1);
		2256	#endif
		2257
		2258	XPUSHs (newmortalFH (fd, O_RDWR));
		2259	}
		2260
		2261	void
		2262	timerfd_create (int clockid, int flags = 0)
		2263	PPCODE:
		2264	{
		2265	int fd;
		2266	#if HAVE_TIMERFD
		2267	fd = timerfd_create (clockid, flags);
		2268	#else
		2269	fd = (errno = ENOSYS, -1);
		2270	#endif
		2271
		2272	XPUSHs (newmortalFH (fd, O_RDWR));
		2273	}
		2274
		2275	void
		2276	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2277	PPCODE:
		2278	{
		2279	int fd = s_fileno_croak (fh, 0);
		2280	#if HAVE_TIMERFD
		2281	int res;
		2282	struct itimerspec its, ots;
		2283
		2284	ts_set (&its.it_interval, interval);
		2285	ts_set (&its.it_value , value);
		2286	res = timerfd_settime (fd, flags, &its, &ots);
		2287
		2288	if (!res)
		2289	{
		2290	EXTEND (SP, 2);
		2291	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2292	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2293	}
		2294	#else
		2295	errno = ENOSYS;
		2296	#endif
		2297	}
		2298
		2299	void
		2300	timerfd_gettime (SV *fh)
		2301	PPCODE:
		2302	{
		2303	int fd = s_fileno_croak (fh, 0);
		2304	#if HAVE_TIMERFD
		2305	int res;
		2306	struct itimerspec ots;
		2307	res = timerfd_gettime (fd, &ots);
		2308
		2309	if (!res)
		2310	{
		2311	EXTEND (SP, 2);
		2312	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2313	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2314	}
		2315	#else
		2316	errno = ENOSYS;
		2317	#endif
2058	}	2318	}
2059		2319
2060	UV	2320	UV
2061	get_fdlimit ()	2321	get_fdlimit ()
2062	CODE:	2322	CODE:

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.250 by root, Fri Sep 22 05:20:39 2017 UTC vs. Revision 1.260 by root, Tue Jul 24 04:58:59 2018 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.250 by root, Fri Sep 22 05:20:39 2017 UTC vs.
Revision 1.260 by root, Tue Jul 24 04:58:59 2018 UTC