[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 1.257 by root, Tue Jul 17 23:20:09 2018 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"
10		8
11	#include <stddef.h>	9	#include <stddef.h>
12	#include <stdlib.h>	10	#include <stdlib.h>
13	#include <errno.h>	11	#include <errno.h>
14	#include <sys/types.h>	12	#include <sys/types.h>
…		…
106		104
107	/*****************************************************************************/	105	/*****************************************************************************/
108		106
109	#include "libeio/config.h"	107	#include "libeio/config.h"
110		108
		109	#include "schmorp.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
111	#if HAVE_RLIMITS	119	#if HAVE_RLIMITS
112	#include <sys/time.h>	120	#include <sys/time.h>
113	#include <sys/resource.h>	121	#include <sys/resource.h>
114	#endif	122	#endif
115		123
…		…
168	#endif	176	#endif
169		177
170	#if PAGESIZE <= 0	178	#if PAGESIZE <= 0
171	# define PAGESIZE sysconf (_SC_PAGESIZE)	179	# define PAGESIZE sysconf (_SC_PAGESIZE)
172	#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	#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	}
173		276
174	/*****************************************************************************/	277	/*****************************************************************************/
175		278
176	static void	279	static void
177	fiemap (eio_req *req)	280	fiemap (eio_req *req)
…		…
597	SvSETMAGIC (req->sv2);	700	SvSETMAGIC (req->sv2);
598	PUSHs (sv_result);	701	PUSHs (sv_result);
599	}	702	}
600	break;	703	break;
601		704
		705	case EIO_SLURP:
		706	{
		707	if (req->result >= 0)
		708	{
		709	/* if length was originally not known, we steal the malloc'ed memory */
		710	if (req->flags & EIO_FLAG_PTR2_FREE)
		711	{
		712	req->flags &= ~EIO_FLAG_PTR2_FREE;
		713	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		714	}
		715	else
		716	{
		717	SvCUR_set (req->sv2, req->result);
		718	*SvEND (req->sv2) = 0;
		719	SvPOK_only (req->sv2);
		720	}
		721
		722	SvSETMAGIC (req->sv2);
		723	}
		724
		725	PUSHs (sv_result);
		726	}
		727	break;
		728
602	case EIO_CUSTOM:	729	case EIO_CUSTOM:
603	if (req->feed == fiemap)	730	if (req->feed == fiemap)
604	{	731	{
605	#if HAVE_FIEMAP	732	#if HAVE_FIEMAP
606	if (!req->result)	733	if (!req->result)
…		…
749	create_respipe ();	876	create_respipe ();
750		877
751	if (eio_init (want_poll, done_poll) < 0)	878	if (eio_init (want_poll, done_poll) < 0)
752	croak ("IO::AIO: unable to initialise eio library");	879	croak ("IO::AIO: unable to initialise eio library");
753	}	880	}
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		881
793	/*****************************************************************************/	882	/*****************************************************************************/
794		883
795	static SV *	884	static SV *
796	get_cb (SV *cb_sv)	885	get_cb (SV *cb_sv)
…		…
892	req_set_path1 (req, fh_or_path);	981	req_set_path1 (req, fh_or_path);
893	break;	982	break;
894	}	983	}
895	}	984	}
896		985
		986	/*****************************************************************************/
		987
		988	static void
		989	ts_set (struct timespec *ts, NV value)
		990	{
		991	ts->tv_sec = value;
		992	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		993	}
		994
		995	static NV
		996	ts_get (const struct timespec *ts)
		997	{
		998	return ts->tv_sec + ts->tv_nsec * 1e-9;
		999	}
		1000
		1001	/*****************************************************************************/
		1002
897	XS(boot_IO__AIO) ecb_cold;	1003	XS(boot_IO__AIO) ecb_cold;
898		1004
899	MODULE = IO::AIO PACKAGE = IO::AIO	1005	MODULE = IO::AIO PACKAGE = IO::AIO
900		1006
901	PROTOTYPES: ENABLE	1007	PROTOTYPES: ENABLE
…		…
1000	const_iv (MAP_NONBLOCK)	1106	const_iv (MAP_NONBLOCK)
1001	const_iv (MAP_GROWSDOWN)	1107	const_iv (MAP_GROWSDOWN)
1002	const_iv (MAP_32BIT)	1108	const_iv (MAP_32BIT)
1003	const_iv (MAP_HUGETLB)	1109	const_iv (MAP_HUGETLB)
1004	const_iv (MAP_STACK)	1110	const_iv (MAP_STACK)
		1111
		1112	const_iv (MREMAP_MAYMOVE)
		1113	const_iv (MREMAP_FIXED)
1005		1114
1006	const_iv (F_DUPFD_CLOEXEC)	1115	const_iv (F_DUPFD_CLOEXEC)
1007		1116
1008	const_iv (F_OFD_GETLK)	1117	const_iv (F_OFD_GETLK)
1009	const_iv (F_OFD_SETLK)	1118	const_iv (F_OFD_SETLK)
…		…
1084	const_iv (SPLICE_F_MOVE)	1193	const_iv (SPLICE_F_MOVE)
1085	const_iv (SPLICE_F_NONBLOCK)	1194	const_iv (SPLICE_F_NONBLOCK)
1086	const_iv (SPLICE_F_MORE)	1195	const_iv (SPLICE_F_MORE)
1087	const_iv (SPLICE_F_GIFT)	1196	const_iv (SPLICE_F_GIFT)
1088		1197
		1198	const_iv (EFD_CLOEXEC)
		1199	const_iv (EFD_NONBLOCK)
		1200	const_iv (EFD_SEMAPHORE)
		1201
		1202	const_iv (CLOCK_REALTIME)
		1203	const_iv (CLOCK_MONOTONIC)
		1204	const_iv (CLOCK_BOOTTIME)
		1205	const_iv (CLOCK_REALTIME_ALARM)
		1206	const_iv (CLOCK_BOOTTIME_ALARM)
		1207
		1208	const_iv (TFD_NONBLOCK)
		1209	const_iv (TFD_CLOEXEC)
		1210
		1211	const_iv (TFD_TIMER_ABSTIME)
		1212	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1213
1089	/* these are libeio constants, and are independent of gendef0 */	1214	/* these are libeio constants, and are independent of gendef0 */
1090	const_eio (SEEK_SET)	1215	const_eio (SEEK_SET)
1091	const_eio (SEEK_CUR)	1216	const_eio (SEEK_CUR)
1092	const_eio (SEEK_END)	1217	const_eio (SEEK_END)
1093		1218
…		…
1738		1863
1739	REQ_SEND;	1864	REQ_SEND;
1740	}	1865	}
1741		1866
1742	void	1867	void
		1868	aio_slurp (SV pathname, off_t offset, UV length, SV8 data, SV *callback = &PL_sv_undef)
		1869	PPCODE:
		1870	{
		1871	char *svptr = 0;
		1872
		1873	sv_clear_foreign (data);
		1874
		1875	if (length) /* known length, directly read into scalar */
		1876	{
		1877	if (!SvPOK (data) \|\| SvLEN (data) >= SvCUR (data))
		1878	svptr = sv_grow (data, length + 1);
		1879	else if (SvCUR (data) < length)
		1880	croak ("length outside of scalar, and cannot grow");
		1881	else
		1882	svptr = SvPVbyte_nolen (data);
		1883	}
		1884
		1885	{
		1886	dREQ;
		1887
		1888	req->type = EIO_SLURP;
		1889	req_set_path1 (req, pathname);
		1890	req->offs = offset;
		1891	req->size = length;
		1892	req->sv2 = SvREFCNT_inc (data);
		1893	req->ptr2 = svptr;
		1894
		1895	if (!SvREADONLY (data))
		1896	{
		1897	SvREADONLY_on (data);
		1898	req->flags \|= FLAG_SV2_RO_OFF;
		1899	}
		1900
		1901	REQ_SEND;
		1902	}
		1903	}
		1904
		1905	void
1743	aio_busy (double delay, SV *callback = &PL_sv_undef)	1906	aio_busy (double delay, SV *callback = &PL_sv_undef)
1744	PPCODE:	1907	PPCODE:
1745	{	1908	{
1746	dREQ;	1909	dREQ;
1747		1910
…		…
1881	RETVAL	2044	RETVAL
1882		2045
1883	void	2046	void
1884	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)	2047	mmap (SV scalar, STRLEN length, int prot, int flags, SV fh = &PL_sv_undef, off_t offset = 0)
1885	PPCODE:	2048	PPCODE:
1886	sv_unmagic (scalar, MMAP_MAGIC);	2049	sv_clear_foreign (scalar);
1887	{	2050	{
1888	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2051	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1889	void addr = (void )mmap (0, length, prot, flags, fd, offset);	2052	void addr = (void )mmap (0, length, prot, flags, fd, offset);
1890	if (addr == (void *)-1)	2053	if (addr == (void *)-1)
1891	XSRETURN_NO;	2054	XSRETURN_NO;
1892		2055
1893	sv_force_normal (scalar);	2056	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		2057
1901	if (!(prot & PROT_WRITE))	2058	if (!(prot & PROT_WRITE))
1902	SvREADONLY_on (scalar);	2059	SvREADONLY_on (scalar);
1903		2060
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;	2061	XSRETURN_YES;
1913	}	2062	}
1914		2063
1915	void	2064	void
1916	munmap (SV *scalar)	2065	munmap (SV *scalar)
1917	CODE:	2066	CODE:
1918	sv_unmagic (scalar, MMAP_MAGIC);	2067	sv_clear_foreign (scalar);
		2068
		2069	SV *
		2070	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2071	CODE:
		2072	{
		2073	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2074	void *new;
		2075
		2076	if (!mg \|\| SvPVX (scalar) != mg->mg_ptr)
		2077	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2078
		2079	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2080
		2081	RETVAL = &PL_sv_no;
		2082
		2083	if (new != (void *)-1)
		2084	{
		2085	RETVAL = new == (void *)mg->mg_ptr
		2086	? newSVpvn ("0 but true", 10)
		2087	: &PL_sv_yes;
		2088
		2089	mg->mg_ptr = (char *)new;
		2090	mg->mg_obj = (SV *)new_length;
		2091
		2092	SvPVX (scalar) = mg->mg_ptr;
		2093	SvCUR_set (scalar, new_length);
		2094	}
		2095	}
		2096	OUTPUT:
		2097	RETVAL
1919		2098
1920	int	2099	int
1921	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)	2100	madvise (SV scalar, STRLEN offset = 0, SV length = &PL_sv_undef, IV advice_or_prot)
1922	ALIAS:	2101	ALIAS:
1923	mprotect = 1	2102	mprotect = 1
…		…
2053	{	2232	{
2054	EXTEND (SP, 2);	2233	EXTEND (SP, 2);
2055	PUSHs (newmortalFH (fd[0], O_RDONLY));	2234	PUSHs (newmortalFH (fd[0], O_RDONLY));
2056	PUSHs (newmortalFH (fd[1], O_WRONLY));	2235	PUSHs (newmortalFH (fd[1], O_WRONLY));
2057	}	2236	}
		2237	}
		2238
		2239	void
		2240	eventfd (unsigned int initval = 0, int flags = 0)
		2241	PPCODE:
		2242	{
		2243	int fd;
		2244	#if HAVE_EVENTFD
		2245	fd = eventfd (initval, flags);
		2246	#else
		2247	fd = (errno = ENOSYS, -1);
		2248	#endif
		2249
		2250	XPUSHs (newmortalFH (fd, O_RDWR));
		2251	}
		2252
		2253	void
		2254	timerfd_create (int clockid, int flags = 0)
		2255	PPCODE:
		2256	{
		2257	int fd;
		2258	#if HAVE_TIMERFD
		2259	fd = timerfd_create (clockid, flags);
		2260	#else
		2261	fd = (errno = ENOSYS, -1);
		2262	#endif
		2263
		2264	XPUSHs (newmortalFH (fd, O_RDWR));
		2265	}
		2266
		2267	void
		2268	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2269	PPCODE:
		2270	{
		2271	int fd = s_fileno_croak (fh, 0);
		2272	#if HAVE_TIMERFD
		2273	int res;
		2274	struct itimerspec its, ots;
		2275
		2276	ts_set (&its.it_interval, interval);
		2277	ts_set (&its.it_value , value);
		2278	res = timerfd_settime (fd, flags, &its, &ots);
		2279
		2280	if (!res)
		2281	{
		2282	EXTEND (SP, 2);
		2283	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2284	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2285	}
		2286	#else
		2287	errno = ENOSYS;
		2288	#endif
		2289	}
		2290
		2291	void
		2292	timerfd_gettime (SV *fh)
		2293	PPCODE:
		2294	{
		2295	int fd = s_fileno_croak (fh, 0);
		2296	#if HAVE_TIMERFD
		2297	int res;
		2298	struct itimerspec ots;
		2299	res = timerfd_gettime (fd, &ots);
		2300
		2301	if (!res)
		2302	{
		2303	EXTEND (SP, 2);
		2304	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2305	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2306	}
		2307	#else
		2308	errno = ENOSYS;
		2309	#endif
2058	}	2310	}
2059		2311
2060	UV	2312	UV
2061	get_fdlimit ()	2313	get_fdlimit ()
2062	CODE:	2314	CODE:

Diff Legend

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

Comparing IO-AIO/AIO.xs (file contents): Revision 1.250 by root, Fri Sep 22 05:20:39 2017 UTC vs. Revision 1.257 by root, Tue Jul 17 23:20:09 2018 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.250 by root, Fri Sep 22 05:20:39 2017 UTC vs.
Revision 1.257 by root, Tue Jul 17 23:20:09 2018 UTC