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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.98 by root, Wed May 9 06:45:12 2007 UTC vs.
Revision 1.112 by root, Tue Apr 1 19:40:47 2008 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 "autoconf/config.h"
10
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/time.h>
15	#include <sys/select.h>
16	#include <sys/types.h>	12	#include <sys/types.h>
17	#include <sys/stat.h>	13	#include <sys/stat.h>
18	#include <limits.h>	14	#include <limits.h>
19	#include <unistd.h>
20	#include <fcntl.h>	15	#include <fcntl.h>
21	#include <signal.h>
22	#include <sched.h>	16	#include <sched.h>
		17
		18	#ifdef _WIN32
		19
		20	# define SIGIO 0
		21	typedef Direntry_t X_DIRENT;
		22	#undef malloc
		23	#undef free
		24
		25	// perl overrides all those nice win32 functions
		26	# undef open
		27	# undef read
		28	# undef write
		29	# undef send
		30	# undef recv
		31	# undef stat
		32	# undef fstat
		33	# define lstat stat
		34	# undef truncate
		35	# undef ftruncate
		36	# undef open
		37	# undef close
		38	# undef unlink
		39	# undef rmdir
		40	# undef rename
		41	# undef lseek
		42
		43	# define chown(a,b,c) (errno = ENOSYS, -1)
		44	# define fchown(a,b,c) (errno = ENOSYS, -1)
		45	# define fchmod(a,b) (errno = ENOSYS, -1)
		46	# define symlink(a,b) (errno = ENOSYS, -1)
		47	# define readlink(a,b,c) (errno = ENOSYS, -1)
		48	# define mknod(a,b,c) (errno = ENOSYS, -1)
		49	# define truncate(a,b) (errno = ENOSYS, -1)
		50	# define ftruncate(fd,o) chsize ((fd), (o))
		51	# define fsync(fd) _commit (fd)
		52	# define opendir(fd) (errno = ENOSYS, 0)
		53	# define readdir(fd) (errno = ENOSYS, -1)
		54	# define closedir(fd) (errno = ENOSYS, -1)
		55	# define mkdir(a,b) mkdir (a)
		56
		57	#else
		58
		59	# include "autoconf/config.h"
		60	# include <sys/time.h>
		61	# include <sys/select.h>
		62	# include <unistd.h>
		63	# include <utime.h>
		64	# include <signal.h>
		65	typedef struct dirent X_DIRENT;
		66
		67	#endif
23		68
24	#if HAVE_SENDFILE	69	#if HAVE_SENDFILE
25	# if __linux	70	# if __linux
26	# include <sys/sendfile.h>	71	# include <sys/sendfile.h>
27	# elif __freebsd	72	# elif __freebsd
…		…
45	#endif	90	#endif
46		91
47	/* buffer size for various temporary buffers */	92	/* buffer size for various temporary buffers */
48	#define AIO_BUFSIZE 65536	93	#define AIO_BUFSIZE 65536
49		94
		95	/* use NV for 32 bit perls as it allows larger offsets */
		96	#if IVSIZE >= 8
		97	# define SvVAL64 SvIV
		98	#else
		99	# define SvVAL64 SvNV
		100	#endif
		101
		102	static HV *stash;
		103
50	#define dBUF \	104	#define dBUF \
51	char *aio_buf; \	105	char *aio_buf; \
52	LOCK (wrklock); \	106	X_LOCK (wrklock); \
53	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \	107	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
54	UNLOCK (wrklock); \	108	X_UNLOCK (wrklock); \
55	if (!aio_buf) \	109	if (!aio_buf) \
56	return -1;	110	return -1;
57		111
58	typedef SV SV8; /* byte-sv, used for argument-checking */	112	typedef SV SV8; /* byte-sv, used for argument-checking */
59		113
60	enum {	114	enum {
61	REQ_QUIT,	115	REQ_QUIT,
62	REQ_OPEN, REQ_CLOSE,	116	REQ_OPEN, REQ_CLOSE,
63	REQ_READ, REQ_WRITE, REQ_READAHEAD,	117	REQ_READ, REQ_WRITE,
64	REQ_SENDFILE,	118	REQ_READAHEAD, REQ_SENDFILE,
65	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	119	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
		120	REQ_TRUNCATE, REQ_FTRUNCATE,
		121	REQ_UTIME, REQ_FUTIME,
		122	REQ_CHMOD, REQ_FCHMOD,
		123	REQ_CHOWN, REQ_FCHOWN,
66	REQ_FSYNC, REQ_FDATASYNC,	124	REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
67	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,	125	REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
68	REQ_MKNOD, REQ_READDIR,	126	REQ_MKNOD, REQ_READDIR,
69	REQ_LINK, REQ_SYMLINK, REQ_READLINK,	127	REQ_LINK, REQ_SYMLINK, REQ_READLINK,
70	REQ_GROUP, REQ_NOP,	128	REQ_GROUP, REQ_NOP,
71	REQ_BUSY,	129	REQ_BUSY,
…		…
76		134
77	typedef struct aio_cb	135	typedef struct aio_cb
78	{	136	{
79	struct aio_cb *volatile next;	137	struct aio_cb *volatile next;
80		138
81	SV *callback, *fh;	139	SV *callback;
82	SV *sv1, *sv2;	140	SV *sv1, *sv2;
83	void *ptr1, *ptr2;	141	void *ptr1, *ptr2;
84	off_t offs;	142	off_t offs;
85	size_t size;	143	size_t size;
86	ssize_t result;	144	ssize_t result;
		145	double nv1, nv2;
87		146
88	STRLEN stroffset;	147	STRLEN stroffset;
89	int type;	148	int type;
90	int int1, int2;	149	int int1, int2, int3;
91	int errorno;	150	int errorno;
92	mode_t mode; /* open */	151	mode_t mode; /* open */
93		152
94	unsigned char flags;	153	unsigned char flags;
95	unsigned char pri;	154	unsigned char pri;
…		…
98	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;	157	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
99	} aio_cb;	158	} aio_cb;
100		159
101	enum {	160	enum {
102	FLAG_CANCELLED = 0x01, /* request was cancelled */	161	FLAG_CANCELLED = 0x01, /* request was cancelled */
103	FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */	162	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
104	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */	163	FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
105	};	164	};
106		165
107	typedef aio_cb *aio_req;	166	typedef aio_cb *aio_req;
108	typedef aio_cb *aio_req_ornot;	167	typedef aio_cb *aio_req_ornot;
…		…
130		189
131	static thread_t main_tid;	190	static thread_t main_tid;
132	static int main_sig;	191	static int main_sig;
133	static int block_sig_level;	192	static int block_sig_level;
134		193
135	void block_sig ()	194	void block_sig (void)
136	{	195	{
137	sigset_t ss;	196	sigset_t ss;
138		197
139	if (block_sig_level++)	198	if (block_sig_level++)
140	return;	199	return;
…		…
145	sigemptyset (&ss);	204	sigemptyset (&ss);
146	sigaddset (&ss, main_sig);	205	sigaddset (&ss, main_sig);
147	pthread_sigmask (SIG_BLOCK, &ss, 0);	206	pthread_sigmask (SIG_BLOCK, &ss, 0);
148	}	207	}
149		208
150	void unblock_sig ()	209	void unblock_sig (void)
151	{	210	{
152	sigset_t ss;	211	sigset_t ss;
153		212
154	if (--block_sig_level)	213	if (--block_sig_level)
155	return;	214	return;
…		…
165	static int next_pri = DEFAULT_PRI + PRI_BIAS;	224	static int next_pri = DEFAULT_PRI + PRI_BIAS;
166		225
167	static unsigned int started, idle, wanted;	226	static unsigned int started, idle, wanted;
168		227
169	/* worker threads management */	228	/* worker threads management */
170	static mutex_t wrklock = MUTEX_INIT;	229	static mutex_t wrklock = X_MUTEX_INIT;
171		230
172	typedef struct worker {	231	typedef struct worker {
173	/* locked by wrklock */	232	/* locked by wrklock */
174	struct worker *prev, *next;	233	struct worker *prev, *next;
175		234
…		…
207	}	266	}
208		267
209	static volatile unsigned int nreqs, nready, npending;	268	static volatile unsigned int nreqs, nready, npending;
210	static volatile unsigned int max_idle = 4;	269	static volatile unsigned int max_idle = 4;
211	static volatile unsigned int max_outstanding = 0xffffffff;	270	static volatile unsigned int max_outstanding = 0xffffffff;
212	static int respipe [2];	271	static int respipe_osf [2], respipe [2] = { -1, -1 };
213		272
214	static mutex_t reslock = MUTEX_INIT;	273	static mutex_t reslock = X_MUTEX_INIT;
215	static mutex_t reqlock = MUTEX_INIT;	274	static mutex_t reqlock = X_MUTEX_INIT;
216	static cond_t reqwait = COND_INIT;	275	static cond_t reqwait = X_COND_INIT;
217		276
218	#if WORDACCESS_UNSAFE	277	#if WORDACCESS_UNSAFE
219		278
220	static unsigned int get_nready ()	279	static unsigned int get_nready (void)
221	{	280	{
222	unsigned int retval;	281	unsigned int retval;
223		282
224	LOCK (reqlock);	283	X_LOCK (reqlock);
225	retval = nready;	284	retval = nready;
226	UNLOCK (reqlock);	285	X_UNLOCK (reqlock);
227		286
228	return retval;	287	return retval;
229	}	288	}
230		289
231	static unsigned int get_npending ()	290	static unsigned int get_npending (void)
232	{	291	{
233	unsigned int retval;	292	unsigned int retval;
234		293
235	LOCK (reslock);	294	X_LOCK (reslock);
236	retval = npending;	295	retval = npending;
237	UNLOCK (reslock);	296	X_UNLOCK (reslock);
238		297
239	return retval;	298	return retval;
240	}	299	}
241		300
242	static unsigned int get_nthreads ()	301	static unsigned int get_nthreads (void)
243	{	302	{
244	unsigned int retval;	303	unsigned int retval;
245		304
246	LOCK (wrklock);	305	X_LOCK (wrklock);
247	retval = started;	306	retval = started;
248	UNLOCK (wrklock);	307	X_UNLOCK (wrklock);
249		308
250	return retval;	309	return retval;
251	}	310	}
252		311
253	#else	312	#else
…		…
310	}	369	}
311		370
312	abort ();	371	abort ();
313	}	372	}
314		373
315	static int poll_cb ();	374	static int poll_cb (void);
316	static int req_invoke (aio_req req);	375	static int req_invoke (aio_req req);
317	static void req_free (aio_req req);	376	static void req_destroy (aio_req req);
318	static void req_cancel (aio_req req);	377	static void req_cancel (aio_req req);
319		378
320	/* must be called at most once */	379	/* must be called at most once */
321	static SV *req_sv (aio_req req, const char *klass)	380	static SV *req_sv (aio_req req, const char *klass)
322	{	381	{
…		…
388	{	447	{
389	block_sig ();	448	block_sig ();
390		449
391	if (!req_invoke (grp))	450	if (!req_invoke (grp))
392	{	451	{
393	req_free (grp);	452	req_destroy (grp);
394	unblock_sig ();	453	unblock_sig ();
395	croak (0);	454	croak (0);
396	}	455	}
397		456
398	req_free (grp);	457	req_destroy (grp);
399	unblock_sig ();	458	unblock_sig ();
400	}	459	}
401	}	460	}
402		461
403	static int req_invoke (aio_req req)	462	static int req_invoke (aio_req req)
404	{	463	{
405	dSP;	464	dSP;
406		465
407	if (req->flags & FLAG_SV1_RO_OFF)	466	if (req->flags & FLAG_SV2_RO_OFF)
408	SvREADONLY_off (req->sv1);	467	SvREADONLY_off (req->sv2);
409		468
410	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))	469	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
411	{	470	{
412	ENTER;	471	ENTER;
413	SAVETMPS;	472	SAVETMPS;
…		…
444	break;	503	break;
445		504
446	case REQ_OPEN:	505	case REQ_OPEN:
447	{	506	{
448	/* convert fd to fh */	507	/* convert fd to fh */
449	SV *fh;	508	SV *fh = &PL_sv_undef;
450		509
451	PUSHs (sv_2mortal (newSViv (req->result)));	510	if (req->result >= 0)
452	PUTBACK;	511	{
453	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);	512	GV *gv = (GV *)sv_newmortal ();
454	SPAGAIN;	513	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
		514	char sym [64];
		515	int symlen;
		516
		517	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);
		518	gv_init (gv, stash, sym, symlen, 0);
455		519
456	fh = POPs;	520	symlen = snprintf (
457	PUSHMARK (SP);	521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	req->result
		526	);
		527
		528	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		529	fh = (SV *)gv;
		530	}
		531
458	XPUSHs (fh);	532	PUSHs (fh);
459	}	533	}
460	break;	534	break;
461		535
462	case REQ_GROUP:	536	case REQ_GROUP:
463	req->int1 = 2; /* mark group as finished */	537	req->int1 = 2; /* mark group as finished */
…		…
478	break;	552	break;
479		553
480	case REQ_READLINK:	554	case REQ_READLINK:
481	if (req->result > 0)	555	if (req->result > 0)
482	{	556	{
483	SvCUR_set (req->sv1, req->result);	557	SvCUR_set (req->sv2, req->result);
484	*SvEND (req->sv1) = 0;	558	*SvEND (req->sv2) = 0;
485	PUSHs (req->sv1);	559	PUSHs (req->sv2);
486	}	560	}
487	break;	561	break;
488		562
489	case REQ_STAT:	563	case REQ_STAT:
490	case REQ_LSTAT:	564	case REQ_LSTAT:
…		…
494	PL_statcache = *(Stat_t *)(req->ptr2);	568	PL_statcache = *(Stat_t *)(req->ptr2);
495	PUSHs (sv_2mortal (newSViv (req->result)));	569	PUSHs (sv_2mortal (newSViv (req->result)));
496	break;	570	break;
497		571
498	case REQ_READ:	572	case REQ_READ:
499	SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));	573	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
500	*SvEND (req->sv1) = 0;	574	*SvEND (req->sv2) = 0;
501	PUSHs (sv_2mortal (newSViv (req->result)));	575	PUSHs (sv_2mortal (newSViv (req->result)));
502	break;	576	break;
503		577
504	default:	578	default:
505	PUSHs (sv_2mortal (newSViv (req->result)));	579	PUSHs (sv_2mortal (newSViv (req->result)));
…		…
507	}	581	}
508		582
509	errno = req->errorno;	583	errno = req->errorno;
510		584
511	PUTBACK;	585	PUTBACK;
512	call_sv (req->callback, G_VOID | G_EVAL);	586	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
513	SPAGAIN;	587	SPAGAIN;
514		588
515	FREETMPS;	589	FREETMPS;
516	LEAVE;	590	LEAVE;
		591
		592	PUTBACK;
517	}	593	}
518		594
519	if (req->grp)	595	if (req->grp)
520	{	596	{
521	aio_req grp = req->grp;	597	aio_req grp = req->grp;
…		…
531	}	607	}
532		608
533	return !SvTRUE (ERRSV);	609	return !SvTRUE (ERRSV);
534	}	610	}
535		611
536	static void req_free (aio_req req)	612	static void req_destroy (aio_req req)
537	{	613	{
538	if (req->self)	614	if (req->self)
539	{	615	{
540	sv_unmagic (req->self, PERL_MAGIC_ext);	616	sv_unmagic (req->self, PERL_MAGIC_ext);
541	SvREFCNT_dec (req->self);	617	SvREFCNT_dec (req->self);
542	}	618	}
543		619
544	SvREFCNT_dec (req->fh);
545	SvREFCNT_dec (req->sv1);	620	SvREFCNT_dec (req->sv1);
546	SvREFCNT_dec (req->sv2);	621	SvREFCNT_dec (req->sv2);
547	SvREFCNT_dec (req->callback);	622	SvREFCNT_dec (req->callback);
548		623
549	if (req->flags & FLAG_PTR2_FREE)	624	if (req->flags & FLAG_PTR2_FREE)
…		…
571	req->flags |= FLAG_CANCELLED;	646	req->flags |= FLAG_CANCELLED;
572		647
573	req_cancel_subs (req);	648	req_cancel_subs (req);
574	}	649	}
575		650
576	static void *aio_proc(void *arg);	651	#ifdef USE_SOCKETS_AS_HANDLES
		652	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		653	#else
		654	# define TO_SOCKET(x) (x)
		655	#endif
		656
		657	static void
		658	create_respipe (void)
		659	{
		660	int old_readfd = respipe [0];
		661
		662	if (respipe [1] >= 0)
		663	respipe_close (TO_SOCKET (respipe [1]));
		664
		665	#ifdef _WIN32
		666	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		667	#else
		668	if (pipe (respipe))
		669	#endif
		670	croak ("unable to initialize result pipe");
		671
		672	if (old_readfd >= 0)
		673	{
		674	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		675	croak ("unable to initialize result pipe(2)");
		676
		677	respipe_close (respipe [0]);
		678	respipe [0] = old_readfd;
		679	}
		680
		681	#ifdef _WIN32
		682	int arg = 1;
		683	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		684	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		685	#else
		686	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		687	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		688	#endif
		689	croak ("unable to initialize result pipe(3)");
		690
		691	respipe_osf [0] = TO_SOCKET (respipe [0]);
		692	respipe_osf [1] = TO_SOCKET (respipe [1]);
		693	}
		694
		695	X_THREAD_PROC (aio_proc);
577		696
578	static void start_thread (void)	697	static void start_thread (void)
579	{	698	{
580	worker *wrk = calloc (1, sizeof (worker));	699	worker *wrk = calloc (1, sizeof (worker));
581		700
582	if (!wrk)	701	if (!wrk)
583	croak ("unable to allocate worker thread data");	702	croak ("unable to allocate worker thread data");
584		703
585	LOCK (wrklock);	704	X_LOCK (wrklock);
586		705
587	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))	706	if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
588	{	707	{
589	wrk->prev = &wrk_first;	708	wrk->prev = &wrk_first;
590	wrk->next = wrk_first.next;	709	wrk->next = wrk_first.next;
…		…
593	++started;	712	++started;
594	}	713	}
595	else	714	else
596	free (wrk);	715	free (wrk);
597		716
598	UNLOCK (wrklock);	717	X_UNLOCK (wrklock);
599	}	718	}
600		719
601	static void maybe_start_thread ()	720	static void maybe_start_thread (void)
602	{	721	{
603	if (get_nthreads () >= wanted)	722	if (get_nthreads () >= wanted)
604	return;	723	return;
605		724
606	/* todo: maybe use idle here, but might be less exact */	725	/* todo: maybe use idle here, but might be less exact */
…		…
614	{	733	{
615	block_sig ();	734	block_sig ();
616		735
617	++nreqs;	736	++nreqs;
618		737
619	LOCK (reqlock);	738	X_LOCK (reqlock);
620	++nready;	739	++nready;
621	reqq_push (&req_queue, req);	740	reqq_push (&req_queue, req);
622	COND_SIGNAL (reqwait);	741	X_COND_SIGNAL (reqwait);
623	UNLOCK (reqlock);	742	X_UNLOCK (reqlock);
624		743
625	unblock_sig ();	744	unblock_sig ();
626		745
627	maybe_start_thread ();	746	maybe_start_thread ();
628	}	747	}
…		…
634	Newz (0, req, 1, aio_cb);	753	Newz (0, req, 1, aio_cb);
635		754
636	req->type = REQ_QUIT;	755	req->type = REQ_QUIT;
637	req->pri = PRI_MAX + PRI_BIAS;	756	req->pri = PRI_MAX + PRI_BIAS;
638		757
639	LOCK (reqlock);	758	X_LOCK (reqlock);
640	reqq_push (&req_queue, req);	759	reqq_push (&req_queue, req);
641	COND_SIGNAL (reqwait);	760	X_COND_SIGNAL (reqwait);
642	UNLOCK (reqlock);	761	X_UNLOCK (reqlock);
643		762
644	LOCK (wrklock);	763	X_LOCK (wrklock);
645	--started;	764	--started;
646	UNLOCK (wrklock);	765	X_UNLOCK (wrklock);
647	}	766	}
648		767
649	static void set_max_idle (int nthreads)	768	static void set_max_idle (int nthreads)
650	{	769	{
651	if (WORDACCESS_UNSAFE) LOCK (reqlock);	770	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
652	max_idle = nthreads <= 0 ? 1 : nthreads;	771	max_idle = nthreads <= 0 ? 1 : nthreads;
653	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	772	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
654	}	773	}
655		774
656	static void min_parallel (int nthreads)	775	static void min_parallel (int nthreads)
657	{	776	{
658	if (wanted < nthreads)	777	if (wanted < nthreads)
…		…
666		785
667	while (started > wanted)	786	while (started > wanted)
668	end_thread ();	787	end_thread ();
669	}	788	}
670		789
671	static void poll_wait ()	790	static void poll_wait (void)
672	{	791	{
673	fd_set rfd;	792	fd_set rfd;
674		793
675	while (nreqs)	794	while (nreqs)
676	{	795	{
677	int size;	796	int size;
678	if (WORDACCESS_UNSAFE) LOCK (reslock);	797	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
679	size = res_queue.size;	798	size = res_queue.size;
680	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	799	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
681		800
682	if (size)	801	if (size)
683	return;	802	return;
684		803
685	maybe_start_thread ();	804	maybe_start_thread ();
686		805
687	FD_ZERO(&rfd);	806	FD_ZERO (&rfd);
688	FD_SET(respipe [0], &rfd);	807	FD_SET (respipe [0], &rfd);
689		808
690	select (respipe [0] + 1, &rfd, 0, 0, 0);	809	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
691	}	810	}
692	}	811	}
693		812
694	static int poll_cb ()	813	static int poll_cb (void)
695	{	814	{
696	dSP;	815	dSP;
697	int count = 0;	816	int count = 0;
698	int maxreqs = max_poll_reqs;	817	int maxreqs = max_poll_reqs;
699	int do_croak = 0;	818	int do_croak = 0;
…		…
709	{	828	{
710	for (;;)	829	for (;;)
711	{	830	{
712	maybe_start_thread ();	831	maybe_start_thread ();
713		832
714	LOCK (reslock);	833	X_LOCK (reslock);
715	req = reqq_shift (&res_queue);	834	req = reqq_shift (&res_queue);
716		835
717	if (req)	836	if (req)
718	{	837	{
719	--npending;	838	--npending;
720		839
721	if (!res_queue.size)	840	if (!res_queue.size)
722	{	841	{
723	/* read any signals sent by the worker threads */	842	/* read any signals sent by the worker threads */
724	char buf [4];	843	char buf [4];
725	while (read (respipe [0], buf, 4) == 4)	844	while (respipe_read (respipe [0], buf, 4) == 4)
726	;	845	;
727	}	846	}
728	}	847	}
729		848
730	UNLOCK (reslock);	849	X_UNLOCK (reslock);
731		850
732	if (!req)	851	if (!req)
733	break;	852	break;
734		853
735	--nreqs;	854	--nreqs;
…		…
741	}	860	}
742	else	861	else
743	{	862	{
744	if (!req_invoke (req))	863	if (!req_invoke (req))
745	{	864	{
746	req_free (req);	865	req_destroy (req);
747	unblock_sig ();	866	unblock_sig ();
748	croak (0);	867	croak (0);
749	}	868	}
750		869
751	count++;	870	count++;
752	}	871	}
753		872
754	req_free (req);	873	req_destroy (req);
755		874
756	if (maxreqs && !--maxreqs)	875	if (maxreqs && !--maxreqs)
757	break;	876	break;
758		877
759	if (max_poll_time)	878	if (max_poll_time)
…		…
773	++maxreqs;	892	++maxreqs;
774	}	893	}
775		894
776	unblock_sig ();	895	unblock_sig ();
777	return count;	896	return count;
778	}
779
780	static void create_pipe ()
781	{
782	if (pipe (respipe))
783	croak ("unable to initialize result pipe");
784
785	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
786	croak ("cannot set result pipe to nonblocking mode");
787
788	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
789	croak ("cannot set result pipe to nonblocking mode");
790	}	897	}
791		898
792	/*****************************************************************************/	899	/*****************************************************************************/
793	/* work around various missing functions */	900	/* work around various missing functions */
794		901
…		…
799	/*	906	/*
800	* make our pread/pwrite safe against themselves, but not against	907	* make our pread/pwrite safe against themselves, but not against
801	* normal read/write by using a mutex. slows down execution a lot,	908	* normal read/write by using a mutex. slows down execution a lot,
802	* but that's your problem, not mine.	909	* but that's your problem, not mine.
803	*/	910	*/
804	static mutex_t preadwritelock = MUTEX_INIT;	911	static mutex_t preadwritelock = X_MUTEX_INIT;
805		912
806	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	913	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
807	{	914	{
808	ssize_t res;	915	ssize_t res;
809	off_t ooffset;	916	off_t ooffset;
810		917
811	LOCK (preadwritelock);	918	X_LOCK (preadwritelock);
812	ooffset = lseek (fd, 0, SEEK_CUR);	919	ooffset = lseek (fd, 0, SEEK_CUR);
813	lseek (fd, offset, SEEK_SET);	920	lseek (fd, offset, SEEK_SET);
814	res = read (fd, buf, count);	921	res = read (fd, buf, count);
815	lseek (fd, ooffset, SEEK_SET);	922	lseek (fd, ooffset, SEEK_SET);
816	UNLOCK (preadwritelock);	923	X_UNLOCK (preadwritelock);
817		924
818	return res;	925	return res;
819	}	926	}
820		927
821	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	928	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
822	{	929	{
823	ssize_t res;	930	ssize_t res;
824	off_t ooffset;	931	off_t ooffset;
825		932
826	LOCK (preadwritelock);	933	X_LOCK (preadwritelock);
827	ooffset = lseek (fd, 0, SEEK_CUR);	934	ooffset = lseek (fd, 0, SEEK_CUR);
828	lseek (fd, offset, SEEK_SET);	935	lseek (fd, offset, SEEK_SET);
829	res = write (fd, buf, count);	936	res = write (fd, buf, count);
830	lseek (fd, offset, SEEK_SET);	937	lseek (fd, offset, SEEK_SET);
831	UNLOCK (preadwritelock);	938	X_UNLOCK (preadwritelock);
832		939
833	return res;	940	return res;
834	}	941	}
		942	#endif
		943
		944	#ifndef HAVE_FUTIMES
		945
		946	# define utimes(path,times) aio_utimes (path, times)
		947	# define futimes(fd,times) aio_futimes (fd, times)
		948
		949	int aio_utimes (const char *filename, const struct timeval times[2])
		950	{
		951	if (times)
		952	{
		953	struct utimbuf buf;
		954
		955	buf.actime = times[0].tv_sec;
		956	buf.modtime = times[1].tv_sec;
		957
		958	return utime (filename, &buf);
		959	}
		960	else
		961	return utime (filename, 0);
		962	}
		963
		964	int aio_futimes (int fd, const struct timeval tv[2])
		965	{
		966	errno = ENOSYS;
		967	return -1;
		968	}
		969
835	#endif	970	#endif
836		971
837	#if !HAVE_FDATASYNC	972	#if !HAVE_FDATASYNC
838	# define fdatasync fsync	973	# define fdatasync fsync
839	#endif	974	#endif
…		…
841	#if !HAVE_READAHEAD	976	#if !HAVE_READAHEAD
842	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)	977	# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
843		978
844	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)	979	static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
845	{	980	{
		981	size_t todo = count;
846	dBUF;	982	dBUF;
847		983
848	while (count > 0)	984	while (todo > 0)
849	{	985	{
850	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;	986	size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
851		987
852	pread (fd, aio_buf, len, offset);	988	pread (fd, aio_buf, len, offset);
853	offset += len;	989	offset += len;
854	count -= len;	990	todo -= len;
855	}	991	}
856		992
857	errno = 0;	993	errno = 0;
		994	return count;
858	}	995	}
859		996
860	#endif	997	#endif
861		998
862	#if !HAVE_READDIR_R	999	#if !HAVE_READDIR_R
863	# define readdir_r aio_readdir_r	1000	# define readdir_r aio_readdir_r
864		1001
865	static mutex_t readdirlock = MUTEX_INIT;	1002	static mutex_t readdirlock = X_MUTEX_INIT;
866		1003
867	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)	1004	static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
868	{	1005	{
869	struct dirent *e;	1006	X_DIRENT *e;
870	int errorno;	1007	int errorno;
871		1008
872	LOCK (readdirlock);	1009	X_LOCK (readdirlock);
873		1010
874	e = readdir (dirp);	1011	e = readdir (dirp);
875	errorno = errno;	1012	errorno = errno;
876		1013
877	if (e)	1014	if (e)
…		…
880	strcpy (ent->d_name, e->d_name);	1017	strcpy (ent->d_name, e->d_name);
881	}	1018	}
882	else	1019	else
883	*res = 0;	1020	*res = 0;
884		1021
885	UNLOCK (readdirlock);	1022	X_UNLOCK (readdirlock);
886		1023
887	errno = errorno;	1024	errno = errorno;
888	return e ? 0 : -1;	1025	return e ? 0 : -1;
889	}	1026	}
890	#endif	1027	#endif
…		…
986	static void scandir_ (aio_req req, worker *self)	1123	static void scandir_ (aio_req req, worker *self)
987	{	1124	{
988	DIR *dirp;	1125	DIR *dirp;
989	union	1126	union
990	{	1127	{
991	struct dirent d;	1128	X_DIRENT d;
992	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	1129	char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
993	} *u;	1130	} *u;
994	struct dirent *entp;	1131	X_DIRENT *entp;
995	char *name, *names;	1132	char *name, *names;
996	int memlen = 4096;	1133	int memlen = 4096;
997	int memofs = 0;	1134	int memofs = 0;
998	int res = 0;	1135	int res = 0;
999	int errorno;
1000		1136
1001	LOCK (wrklock);	1137	X_LOCK (wrklock);
1002	self->dirp = dirp = opendir (req->ptr1);	1138	self->dirp = dirp = opendir (req->ptr1);
1003	self->dbuf = u = malloc (sizeof (*u));	1139	self->dbuf = u = malloc (sizeof (*u));
1004	req->flags |= FLAG_PTR2_FREE;	1140	req->flags |= FLAG_PTR2_FREE;
1005	req->ptr2 = names = malloc (memlen);	1141	req->ptr2 = names = malloc (memlen);
1006	UNLOCK (wrklock);	1142	X_UNLOCK (wrklock);
1007		1143
1008	if (dirp && u && names)	1144	if (dirp && u && names)
1009	for (;;)	1145	for (;;)
1010	{	1146	{
1011	errno = 0;	1147	errno = 0;
…		…
1023	res++;	1159	res++;
1024		1160
1025	while (memofs + len > memlen)	1161	while (memofs + len > memlen)
1026	{	1162	{
1027	memlen *= 2;	1163	memlen *= 2;
1028	LOCK (wrklock);	1164	X_LOCK (wrklock);
1029	req->ptr2 = names = realloc (names, memlen);	1165	req->ptr2 = names = realloc (names, memlen);
1030	UNLOCK (wrklock);	1166	X_UNLOCK (wrklock);
1031		1167
1032	if (!names)	1168	if (!names)
1033	break;	1169	break;
1034	}	1170	}
1035		1171
…		…
1044	req->result = res;	1180	req->result = res;
1045	}	1181	}
1046		1182
1047	/*****************************************************************************/	1183	/*****************************************************************************/
1048		1184
1049	static void *aio_proc (void *thr_arg)	1185	X_THREAD_PROC (aio_proc)
1050	{	1186	{
1051	aio_req req;	1187	aio_req req;
1052	struct timespec ts;	1188	struct timespec ts;
1053	worker *self = (worker *)thr_arg;	1189	worker *self = (worker *)thr_arg;
1054		1190
1055	/* try to distribute timeouts somewhat evenly */	1191	/* try to distribute timeouts somewhat randomly */
1056	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	1192	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1057	* (1000000000UL / 1024UL);
1058		1193
1059	for (;;)	1194	for (;;)
1060	{	1195	{
1061	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1196	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1062		1197
1063	LOCK (reqlock);	1198	X_LOCK (reqlock);
1064		1199
1065	for (;;)	1200	for (;;)
1066	{	1201	{
1067	self->req = req = reqq_shift (&req_queue);	1202	self->req = req = reqq_shift (&req_queue);
1068		1203
1069	if (req)	1204	if (req)
1070	break;	1205	break;
1071		1206
1072	++idle;	1207	++idle;
1073		1208
1074	if (COND_TIMEDWAIT (reqwait, reqlock, ts)	1209	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1075	== ETIMEDOUT)	1210	== ETIMEDOUT)
1076	{	1211	{
1077	if (idle > max_idle)	1212	if (idle > max_idle)
1078	{	1213	{
1079	--idle;	1214	--idle;
1080	UNLOCK (reqlock);	1215	X_UNLOCK (reqlock);
1081	LOCK (wrklock);	1216	X_LOCK (wrklock);
1082	--started;	1217	--started;
1083	UNLOCK (wrklock);	1218	X_UNLOCK (wrklock);
1084	goto quit;	1219	goto quit;
1085	}	1220	}
1086		1221
1087	/* we are allowed to idle, so do so without any timeout */	1222	/* we are allowed to idle, so do so without any timeout */
1088	COND_WAIT (reqwait, reqlock);	1223	X_COND_WAIT (reqwait, reqlock);
1089	ts.tv_sec = time (0) + IDLE_TIMEOUT;	1224	ts.tv_sec = time (0) + IDLE_TIMEOUT;
1090	}	1225	}
1091		1226
1092	--idle;	1227	--idle;
1093	}	1228	}
1094		1229
1095	--nready;	1230	--nready;
1096		1231
1097	UNLOCK (reqlock);	1232	X_UNLOCK (reqlock);
1098		1233
1099	errno = 0; /* strictly unnecessary */	1234	errno = 0; /* strictly unnecessary */
1100		1235
1101	if (!(req->flags & FLAG_CANCELLED))	1236	if (!(req->flags & FLAG_CANCELLED))
1102	switch (req->type)	1237	switch (req->type)
1103	{	1238	{
1104	case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;	1239	case REQ_READ: req->result = req->offs >= 0
1105	case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;	1240	? pread (req->int1, req->ptr1, req->size, req->offs)
		1241	: read (req->int1, req->ptr1, req->size); break;
		1242	case REQ_WRITE: req->result = req->offs >= 0
		1243	? pwrite (req->int1, req->ptr1, req->size, req->offs)
		1244	: write (req->int1, req->ptr1, req->size); break;
1106		1245
1107	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;	1246	case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1108	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;	1247	case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1109		1248
1110	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;	1249	case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1111	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;	1250	case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1112	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;	1251	case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
		1252
		1253	case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
		1254	case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
		1255	case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
		1256	case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
		1257	case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
		1258	case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1113		1259
1114	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;	1260	case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1115	case REQ_CLOSE: req->result = close (req->int1); break;	1261	case REQ_CLOSE: req->result = close (req->int1); break;
1116	case REQ_UNLINK: req->result = unlink (req->ptr1); break;	1262	case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1117	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;	1263	case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
…		…
1120	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;	1266	case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;	1267	case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;	1268	case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;	1269	case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124		1270
		1271	case REQ_SYNC: req->result = 0; sync (); break;
		1272	case REQ_FSYNC: req->result = fsync (req->int1); break;
1125	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;	1273	case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126	case REQ_FSYNC: req->result = fsync (req->int1); break;	1274
1127	case REQ_READDIR: scandir_ (req, self); break;	1275	case REQ_READDIR: scandir_ (req, self); break;
1128		1276
1129	case REQ_BUSY:	1277	case REQ_BUSY:
		1278	#ifdef _WIN32
		1279	Sleep (req->nv1 * 1000.);
		1280	#else
1130	{	1281	{
1131	struct timeval tv;	1282	struct timeval tv;
1132		1283
1133	tv.tv_sec = req->int1;	1284	tv.tv_sec = req->nv1;
1134	tv.tv_usec = req->int2;	1285	tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1135		1286
1136	req->result = select (0, 0, 0, 0, &tv);	1287	req->result = select (0, 0, 0, 0, &tv);
		1288	}
		1289	#endif
		1290	break;
		1291
		1292	case REQ_UTIME:
		1293	case REQ_FUTIME:
		1294	{
		1295	struct timeval tv[2];
		1296	struct timeval *times;
		1297
		1298	if (req->nv1 != -1. || req->nv2 != -1.)
		1299	{
		1300	tv[0].tv_sec = req->nv1;
		1301	tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
		1302	tv[1].tv_sec = req->nv2;
		1303	tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
		1304
		1305	times = tv;
		1306	}
		1307	else
		1308	times = 0;
		1309
		1310
		1311	req->result = req->type == REQ_FUTIME
		1312	? futimes (req->int1, times)
		1313	: utimes (req->ptr1, times);
1137	}	1314	}
1138		1315
1139	case REQ_GROUP:	1316	case REQ_GROUP:
1140	case REQ_NOP:	1317	case REQ_NOP:
1141	break;	1318	break;
1142		1319
1143	case REQ_QUIT:	1320	case REQ_QUIT:
1144	goto quit;	1321	goto quit;
1145		1322
1146	default:	1323	default:
1147	req->result = ENOSYS;	1324	req->result = -1;
1148	break;	1325	break;
1149	}	1326	}
1150		1327
1151	req->errorno = errno;	1328	req->errorno = errno;
1152		1329
1153	LOCK (reslock);	1330	X_LOCK (reslock);
1154		1331
1155	++npending;	1332	++npending;
1156		1333
1157	if (!reqq_push (&res_queue, req))	1334	if (!reqq_push (&res_queue, req))
1158	{	1335	{
1159	/* write a dummy byte to the pipe so fh becomes ready */	1336	/* write a dummy byte to the pipe so fh becomes ready */
1160	write (respipe [1], &respipe, 1);	1337	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1161		1338
1162	/* optionally signal the main thread asynchronously */	1339	/* optionally signal the main thread asynchronously */
1163	if (main_sig)	1340	if (main_sig)
1164	pthread_kill (main_tid, main_sig);	1341	pthread_kill (main_tid, main_sig);
1165	}	1342	}
1166		1343
1167	self->req = 0;	1344	self->req = 0;
1168	worker_clear (self);	1345	worker_clear (self);
1169		1346
1170	UNLOCK (reslock);	1347	X_UNLOCK (reslock);
1171	}	1348	}
1172		1349
1173	quit:	1350	quit:
1174	LOCK (wrklock);	1351	X_LOCK (wrklock);
1175	worker_free (self);	1352	worker_free (self);
1176	UNLOCK (wrklock);	1353	X_UNLOCK (wrklock);
1177		1354
1178	return 0;	1355	return 0;
1179	}	1356	}
1180		1357
1181	/*****************************************************************************/	1358	/*****************************************************************************/
1182		1359
1183	static void atfork_prepare (void)	1360	static void atfork_prepare (void)
1184	{	1361	{
1185	LOCK (wrklock);	1362	X_LOCK (wrklock);
1186	LOCK (reqlock);	1363	X_LOCK (reqlock);
1187	LOCK (reslock);	1364	X_LOCK (reslock);
1188	#if !HAVE_PREADWRITE	1365	#if !HAVE_PREADWRITE
1189	LOCK (preadwritelock);	1366	X_LOCK (preadwritelock);
1190	#endif	1367	#endif
1191	#if !HAVE_READDIR_R	1368	#if !HAVE_READDIR_R
1192	LOCK (readdirlock);	1369	X_LOCK (readdirlock);
1193	#endif	1370	#endif
1194	}	1371	}
1195		1372
1196	static void atfork_parent (void)	1373	static void atfork_parent (void)
1197	{	1374	{
1198	#if !HAVE_READDIR_R	1375	#if !HAVE_READDIR_R
1199	UNLOCK (readdirlock);	1376	X_UNLOCK (readdirlock);
1200	#endif	1377	#endif
1201	#if !HAVE_PREADWRITE	1378	#if !HAVE_PREADWRITE
1202	UNLOCK (preadwritelock);	1379	X_UNLOCK (preadwritelock);
1203	#endif	1380	#endif
1204	UNLOCK (reslock);	1381	X_UNLOCK (reslock);
1205	UNLOCK (reqlock);	1382	X_UNLOCK (reqlock);
1206	UNLOCK (wrklock);	1383	X_UNLOCK (wrklock);
1207	}	1384	}
1208		1385
1209	static void atfork_child (void)	1386	static void atfork_child (void)
1210	{	1387	{
1211	aio_req prv;	1388	aio_req prv;
1212		1389
1213	while (prv = reqq_shift (&req_queue))	1390	while (prv = reqq_shift (&req_queue))
1214	req_free (prv);	1391	req_destroy (prv);
1215		1392
1216	while (prv = reqq_shift (&res_queue))	1393	while (prv = reqq_shift (&res_queue))
1217	req_free (prv);	1394	req_destroy (prv);
1218		1395
1219	while (wrk_first.next != &wrk_first)	1396	while (wrk_first.next != &wrk_first)
1220	{	1397	{
1221	worker *wrk = wrk_first.next;	1398	worker *wrk = wrk_first.next;
1222		1399
1223	if (wrk->req)	1400	if (wrk->req)
1224	req_free (wrk->req);	1401	req_destroy (wrk->req);
1225		1402
1226	worker_clear (wrk);	1403	worker_clear (wrk);
1227	worker_free (wrk);	1404	worker_free (wrk);
1228	}	1405	}
1229		1406
…		…
1231	idle = 0;	1408	idle = 0;
1232	nreqs = 0;	1409	nreqs = 0;
1233	nready = 0;	1410	nready = 0;
1234	npending = 0;	1411	npending = 0;
1235		1412
1236	close (respipe [0]);
1237	close (respipe [1]);
1238	create_pipe ();	1413	create_respipe ();
1239		1414
1240	atfork_parent ();	1415	atfork_parent ();
1241	}	1416	}
1242		1417
1243	#define dREQ \	1418	#define dREQ \
…		…
1265		1440
1266	PROTOTYPES: ENABLE	1441	PROTOTYPES: ENABLE
1267		1442
1268	BOOT:	1443	BOOT:
1269	{	1444	{
1270	HV *stash = gv_stashpv ("IO::AIO", 1);	1445	stash = gv_stashpv ("IO::AIO", 1);
1271		1446
1272	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1447	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1273	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1448	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1274	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));	1449	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1275	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));	1450	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1276	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));	1451	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
		1452	#ifdef _WIN32
		1453	X_MUTEX_CHECK (wrklock);
		1454	X_MUTEX_CHECK (reslock);
		1455	X_MUTEX_CHECK (reqlock);
		1456	X_MUTEX_CHECK (reqwait);
		1457	X_MUTEX_CHECK (preadwritelock);
		1458	X_MUTEX_CHECK (readdirlock);
		1459
		1460	X_COND_CHECK (reqwait);
		1461	#else
1277	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));	1462	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1278	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));	1463	newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
		1464	#endif
1279		1465
1280	create_pipe ();	1466	create_respipe ();
		1467
1281	ATFORK (atfork_prepare, atfork_parent, atfork_child);	1468	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1282	}	1469	}
1283		1470
1284	void	1471	void
1285	max_poll_reqs (int nreqs)	1472	max_poll_reqs (int nreqs)
1286	PROTOTYPE: $	1473	PROTOTYPE: $
…		…
1315	max_outstanding = maxreqs;	1502	max_outstanding = maxreqs;
1316	OUTPUT:	1503	OUTPUT:
1317	RETVAL	1504	RETVAL
1318		1505
1319	void	1506	void
1320	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	1507	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1321	SV8 * pathname
1322	int flags
1323	int mode
1324	SV * callback
1325	PROTOTYPE: $$$;$	1508	PROTOTYPE: $$$;$
1326	PPCODE:	1509	PPCODE:
1327	{	1510	{
1328	dREQ;	1511	dREQ;
1329		1512
…		…
1335		1518
1336	REQ_SEND;	1519	REQ_SEND;
1337	}	1520	}
1338		1521
1339	void	1522	void
1340	aio_close (fh,callback=&PL_sv_undef)	1523	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1341	SV * fh
1342	SV * callback
1343	PROTOTYPE: $;$	1524	PROTOTYPE: $;$
1344	ALIAS:	1525	ALIAS:
1345	aio_close = REQ_CLOSE
1346	aio_fsync = REQ_FSYNC	1526	aio_fsync = REQ_FSYNC
1347	aio_fdatasync = REQ_FDATASYNC	1527	aio_fdatasync = REQ_FDATASYNC
1348	PPCODE:	1528	PPCODE:
1349	{	1529	{
1350	dREQ;	1530	dREQ;
1351		1531
1352	req->type = ix;	1532	req->type = ix;
1353	req->fh = newSVsv (fh);	1533	req->sv1 = newSVsv (fh);
1354	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1534	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1355		1535
1356	REQ_SEND (req);	1536	REQ_SEND (req);
1357	}	1537	}
1358		1538
		1539	int
		1540	_dup (int fd)
		1541	PROTOTYPE: $
		1542	CODE:
		1543	RETVAL = dup (fd);
		1544	OUTPUT:
		1545	RETVAL
		1546
1359	void	1547	void
		1548	_aio_close (int fd, SV *callback=&PL_sv_undef)
		1549	PROTOTYPE: $;$
		1550	PPCODE:
		1551	{
		1552	dREQ;
		1553
		1554	req->type = REQ_CLOSE;
		1555	req->int1 = fd;
		1556
		1557	REQ_SEND (req);
		1558	}
		1559
		1560	void
1360	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1561	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1361	SV * fh
1362	UV offset
1363	UV length
1364	SV8 * data
1365	UV dataoffset
1366	SV * callback
1367	ALIAS:	1562	ALIAS:
1368	aio_read = REQ_READ	1563	aio_read = REQ_READ
1369	aio_write = REQ_WRITE	1564	aio_write = REQ_WRITE
1370	PROTOTYPE: $$$$$;$	1565	PROTOTYPE: $$$$$;$
1371	PPCODE:	1566	PPCODE:
1372	{	1567	{
1373	STRLEN svlen;	1568	STRLEN svlen;
1374	char *svptr = SvPVbyte (data, svlen);	1569	char *svptr = SvPVbyte (data, svlen);
		1570	UV len = SvUV (length);
1375		1571
1376	SvUPGRADE (data, SVt_PV);	1572	SvUPGRADE (data, SVt_PV);
1377	SvPOK_on (data);	1573	SvPOK_on (data);
1378		1574
1379	if (dataoffset < 0)	1575	if (dataoffset < 0)
1380	dataoffset += svlen;	1576	dataoffset += svlen;
1381		1577
1382	if (dataoffset < 0 || dataoffset > svlen)	1578	if (dataoffset < 0 || dataoffset > svlen)
1383	croak ("data offset outside of string");	1579	croak ("dataoffset outside of data scalar");
1384		1580
1385	if (ix == REQ_WRITE)	1581	if (ix == REQ_WRITE)
1386	{	1582	{
1387	/* write: check length and adjust. */	1583	/* write: check length and adjust. */
1388	if (length < 0 || length + dataoffset > svlen)	1584	if (!SvOK (length) || len + dataoffset > svlen)
1389	length = svlen - dataoffset;	1585	len = svlen - dataoffset;
1390	}	1586	}
1391	else	1587	else
1392	{	1588	{
1393	/* read: grow scalar as necessary */	1589	/* read: grow scalar as necessary */
1394	svptr = SvGROW (data, length + dataoffset + 1);	1590	svptr = SvGROW (data, len + dataoffset + 1);
1395	}	1591	}
1396		1592
1397	if (length < 0)	1593	if (len < 0)
1398	croak ("length must not be negative");	1594	croak ("length must not be negative");
1399		1595
1400	{	1596	{
1401	dREQ;	1597	dREQ;
1402		1598
1403	req->type = ix;	1599	req->type = ix;
1404	req->fh = newSVsv (fh);	1600	req->sv1 = newSVsv (fh);
1405	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	1601	req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1406	: IoOFP (sv_2io (fh)));	1602	: IoOFP (sv_2io (fh)));
1407	req->offs = offset;	1603	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1408	req->size = length;	1604	req->size = len;
1409	req->sv1 = SvREFCNT_inc (data);	1605	req->sv2 = SvREFCNT_inc (data);
1410	req->ptr1 = (char *)svptr + dataoffset;	1606	req->ptr1 = (char *)svptr + dataoffset;
1411	req->stroffset = dataoffset;	1607	req->stroffset = dataoffset;
1412		1608
1413	if (!SvREADONLY (data))	1609	if (!SvREADONLY (data))
1414	{	1610	{
1415	SvREADONLY_on (data);	1611	SvREADONLY_on (data);
1416	req->flags |= FLAG_SV1_RO_OFF;	1612	req->flags |= FLAG_SV2_RO_OFF;
1417	}	1613	}
1418		1614
1419	REQ_SEND;	1615	REQ_SEND;
1420	}	1616	}
1421	}	1617	}
1422		1618
1423	void	1619	void
1424	aio_readlink (path,callback=&PL_sv_undef)	1620	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1425	SV8 * path
1426	SV * callback
1427	PROTOTYPE: $$;$	1621	PROTOTYPE: $$;$
1428	PPCODE:	1622	PPCODE:
1429	{	1623	{
1430	SV *data;	1624	SV *data;
1431	dREQ;	1625	dREQ;
1432		1626
1433	data = newSV (NAME_MAX);	1627	data = newSV (NAME_MAX);
1434	SvPOK_on (data);	1628	SvPOK_on (data);
1435		1629
1436	req->type = REQ_READLINK;	1630	req->type = REQ_READLINK;
1437	req->fh = newSVsv (path);	1631	req->sv1 = newSVsv (path);
1438	req->ptr2 = SvPVbyte_nolen (req->fh);	1632	req->ptr2 = SvPVbyte_nolen (req->sv1);
1439	req->sv1 = data;	1633	req->sv2 = data;
1440	req->ptr1 = SvPVbyte_nolen (data);	1634	req->ptr1 = SvPVbyte_nolen (data);
1441		1635
1442	REQ_SEND;	1636	REQ_SEND;
1443	}	1637	}
1444		1638
1445	void	1639	void
1446	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1640	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1447	SV * out_fh
1448	SV * in_fh
1449	UV in_offset
1450	UV length
1451	SV * callback
1452	PROTOTYPE: $$$$;$	1641	PROTOTYPE: $$$$;$
1453	PPCODE:	1642	PPCODE:
1454	{	1643	{
1455	dREQ;	1644	dREQ;
1456		1645
1457	req->type = REQ_SENDFILE;	1646	req->type = REQ_SENDFILE;
1458	req->fh = newSVsv (out_fh);	1647	req->sv1 = newSVsv (out_fh);
1459	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1648	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1460	req->sv2 = newSVsv (in_fh);	1649	req->sv2 = newSVsv (in_fh);
1461	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1650	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1462	req->offs = in_offset;	1651	req->offs = SvVAL64 (in_offset);
1463	req->size = length;	1652	req->size = length;
1464		1653
1465	REQ_SEND;	1654	REQ_SEND;
1466	}	1655	}
1467		1656
1468	void	1657	void
1469	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1658	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1470	SV * fh
1471	UV offset
1472	IV length
1473	SV * callback
1474	PROTOTYPE: $$$;$	1659	PROTOTYPE: $$$;$
1475	PPCODE:	1660	PPCODE:
1476	{	1661	{
1477	dREQ;	1662	dREQ;
1478		1663
1479	req->type = REQ_READAHEAD;	1664	req->type = REQ_READAHEAD;
1480	req->fh = newSVsv (fh);	1665	req->sv1 = newSVsv (fh);
1481	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1666	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1482	req->offs = offset;	1667	req->offs = SvVAL64 (offset);
1483	req->size = length;	1668	req->size = length;
1484		1669
1485	REQ_SEND;	1670	REQ_SEND;
1486	}	1671	}
1487		1672
1488	void	1673	void
1489	aio_stat (fh_or_path,callback=&PL_sv_undef)	1674	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1490	SV8 * fh_or_path
1491	SV * callback
1492	ALIAS:	1675	ALIAS:
1493	aio_stat = REQ_STAT	1676	aio_stat = REQ_STAT
1494	aio_lstat = REQ_LSTAT	1677	aio_lstat = REQ_LSTAT
1495	PPCODE:	1678	PPCODE:
1496	{	1679	{
1497	dREQ;	1680	dREQ;
1498		1681
1499	req->ptr2 = malloc (sizeof (Stat_t));	1682	req->ptr2 = malloc (sizeof (Stat_t));
1500	if (!req->ptr2)	1683	if (!req->ptr2)
1501	{	1684	{
1502	req_free (req);	1685	req_destroy (req);
1503	croak ("out of memory during aio_stat statdata allocation");	1686	croak ("out of memory during aio_stat statdata allocation");
1504	}	1687	}
1505		1688
1506	req->flags |= FLAG_PTR2_FREE;	1689	req->flags |= FLAG_PTR2_FREE;
		1690	req->sv1 = newSVsv (fh_or_path);
1507		1691
1508	if (SvPOK (fh_or_path))	1692	if (SvPOK (fh_or_path))
1509	{	1693	{
1510	req->type = ix;	1694	req->type = ix;
1511	req->sv1 = newSVsv (fh_or_path);
1512	req->ptr1 = SvPVbyte_nolen (req->sv1);	1695	req->ptr1 = SvPVbyte_nolen (req->sv1);
1513	}	1696	}
1514	else	1697	else
1515	{	1698	{
1516	req->type = REQ_FSTAT;	1699	req->type = REQ_FSTAT;
1517	req->fh = newSVsv (fh_or_path);
1518	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1700	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1519	}	1701	}
1520		1702
1521	REQ_SEND;	1703	REQ_SEND;
1522	}	1704	}
1523		1705
1524	void	1706	void
		1707	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		1708	PPCODE:
		1709	{
		1710	dREQ;
		1711
		1712	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		1713	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		1714	req->sv1 = newSVsv (fh_or_path);
		1715
		1716	if (SvPOK (fh_or_path))
		1717	{
		1718	req->type = REQ_UTIME;
		1719	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1720	}
		1721	else
		1722	{
		1723	req->type = REQ_FUTIME;
		1724	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1725	}
		1726
		1727	REQ_SEND;
		1728	}
		1729
		1730	void
		1731	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	dREQ;
		1735
		1736	req->sv1 = newSVsv (fh_or_path);
		1737	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		1738
		1739	if (SvPOK (fh_or_path))
		1740	{
		1741	req->type = REQ_TRUNCATE;
		1742	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1743	}
		1744	else
		1745	{
		1746	req->type = REQ_FTRUNCATE;
		1747	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1748	}
		1749
		1750	REQ_SEND;
		1751	}
		1752
		1753	void
		1754	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		1755	PPCODE:
		1756	{
		1757	dREQ;
		1758
		1759	req->mode = mode;
		1760	req->sv1 = newSVsv (fh_or_path);
		1761
		1762	if (SvPOK (fh_or_path))
		1763	{
		1764	req->type = REQ_CHMOD;
		1765	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1766	}
		1767	else
		1768	{
		1769	req->type = REQ_FCHMOD;
		1770	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1771	}
		1772
		1773	REQ_SEND;
		1774	}
		1775
		1776	void
		1777	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		1778	PPCODE:
		1779	{
		1780	dREQ;
		1781
		1782	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		1783	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		1784	req->sv1 = newSVsv (fh_or_path);
		1785
		1786	if (SvPOK (fh_or_path))
		1787	{
		1788	req->type = REQ_CHOWN;
		1789	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1790	}
		1791	else
		1792	{
		1793	req->type = REQ_FCHOWN;
		1794	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1795	}
		1796
		1797	REQ_SEND;
		1798	}
		1799
		1800	void
1525	aio_unlink (pathname,callback=&PL_sv_undef)	1801	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1526	SV8 * pathname
1527	SV * callback
1528	ALIAS:	1802	ALIAS:
1529	aio_unlink = REQ_UNLINK	1803	aio_unlink = REQ_UNLINK
1530	aio_rmdir = REQ_RMDIR	1804	aio_rmdir = REQ_RMDIR
1531	aio_readdir = REQ_READDIR	1805	aio_readdir = REQ_READDIR
1532	PPCODE:	1806	PPCODE:
…		…
1539		1813
1540	REQ_SEND;	1814	REQ_SEND;
1541	}	1815	}
1542		1816
1543	void	1817	void
1544	aio_mkdir (pathname,mode,callback=&PL_sv_undef)	1818	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1545	SV8 * pathname
1546	UV mode
1547	SV * callback
1548	PPCODE:	1819	PPCODE:
1549	{	1820	{
1550	dREQ;	1821	dREQ;
1551		1822
1552	req->type = REQ_MKDIR;	1823	req->type = REQ_MKDIR;
…		…
1556		1827
1557	REQ_SEND;	1828	REQ_SEND;
1558	}	1829	}
1559		1830
1560	void	1831	void
1561	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1832	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1562	SV8 * oldpath
1563	SV8 * newpath
1564	SV * callback
1565	ALIAS:	1833	ALIAS:
1566	aio_link = REQ_LINK	1834	aio_link = REQ_LINK
1567	aio_symlink = REQ_SYMLINK	1835	aio_symlink = REQ_SYMLINK
1568	aio_rename = REQ_RENAME	1836	aio_rename = REQ_RENAME
1569	PPCODE:	1837	PPCODE:
1570	{	1838	{
1571	dREQ;	1839	dREQ;
1572		1840
1573	req->type = ix;	1841	req->type = ix;
1574	req->fh = newSVsv (oldpath);	1842	req->sv2 = newSVsv (oldpath);
1575	req->ptr2 = SvPVbyte_nolen (req->fh);	1843	req->ptr2 = SvPVbyte_nolen (req->sv2);
1576	req->sv1 = newSVsv (newpath);	1844	req->sv1 = newSVsv (newpath);
1577	req->ptr1 = SvPVbyte_nolen (req->sv1);	1845	req->ptr1 = SvPVbyte_nolen (req->sv1);
1578		1846
1579	REQ_SEND;	1847	REQ_SEND;
1580	}	1848	}
1581		1849
1582	void	1850	void
1583	aio_mknod (pathname,mode,dev,callback=&PL_sv_undef)	1851	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1584	SV8 * pathname
1585	UV mode
1586	UV dev
1587	SV * callback
1588	PPCODE:	1852	PPCODE:
1589	{	1853	{
1590	dREQ;	1854	dREQ;
1591		1855
1592	req->type = REQ_MKNOD;	1856	req->type = REQ_MKNOD;
…		…
1597		1861
1598	REQ_SEND;	1862	REQ_SEND;
1599	}	1863	}
1600		1864
1601	void	1865	void
1602	aio_busy (delay,callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback=&PL_sv_undef)
1603	double delay
1604	SV * callback
1605	PPCODE:	1867	PPCODE:
1606	{	1868	{
1607	dREQ;	1869	dREQ;
1608		1870
1609	req->type = REQ_BUSY;	1871	req->type = REQ_BUSY;
1610	req->int1 = delay < 0. ? 0 : delay;	1872	req->nv1 = delay < 0. ? 0. : delay;
1611	req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1612		1873
1613	REQ_SEND;	1874	REQ_SEND;
1614	}	1875	}
1615		1876
1616	void	1877	void
1617	aio_group (callback=&PL_sv_undef)	1878	aio_group (SV *callback=&PL_sv_undef)
1618	SV * callback
1619	PROTOTYPE: ;$	1879	PROTOTYPE: ;$
1620	PPCODE:	1880	PPCODE:
1621	{	1881	{
1622	dREQ;	1882	dREQ;
1623		1883
…		…
1626	req_send (req);	1886	req_send (req);
1627	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1887	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1628	}	1888	}
1629		1889
1630	void	1890	void
1631	aio_nop (callback=&PL_sv_undef)	1891	aio_nop (SV *callback=&PL_sv_undef)
1632	SV * callback	1892	ALIAS:
		1893	aio_nop = REQ_NOP
		1894	aio_sync = REQ_SYNC
1633	PPCODE:	1895	PPCODE:
1634	{	1896	{
1635	dREQ;	1897	dREQ;
1636		1898
1637	req->type = REQ_NOP;	1899	req->type = ix;
1638		1900
1639	REQ_SEND;	1901	REQ_SEND;
1640	}	1902	}
1641		1903
1642	int	1904	int
…		…
1708	CODE:	1970	CODE:
1709	{	1971	{
1710	if (block_sig_level)	1972	if (block_sig_level)
1711	croak ("cannot call IO::AIO::setsig from within aio_block/callback");	1973	croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1712		1974
1713	LOCK (reslock);	1975	X_LOCK (reslock);
1714	main_tid = pthread_self ();	1976	main_tid = pthread_self ();
1715	main_sig = signum;	1977	main_sig = signum;
1716	UNLOCK (reslock);	1978	X_UNLOCK (reslock);
1717		1979
1718	if (main_sig && npending)	1980	if (main_sig && npending)
1719	pthread_kill (main_tid, main_sig);	1981	pthread_kill (main_tid, main_sig);
1720	}	1982	}
1721		1983
…		…
1728		1990
1729	block_sig ();	1991	block_sig ();
1730	PUSHMARK (SP);	1992	PUSHMARK (SP);
1731	PUTBACK;	1993	PUTBACK;
1732	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);	1994	count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1733	SPAGAIN;
1734	unblock_sig ();	1995	unblock_sig ();
1735		1996
1736	if (SvTRUE (ERRSV))	1997	if (SvTRUE (ERRSV))
1737	croak (0);	1998	croak (0);
1738		1999
…		…
1765		2026
1766	int	2027	int
1767	nthreads()	2028	nthreads()
1768	PROTOTYPE:	2029	PROTOTYPE:
1769	CODE:	2030	CODE:
1770	if (WORDACCESS_UNSAFE) LOCK (wrklock);	2031	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1771	RETVAL = started;	2032	RETVAL = started;
1772	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	2033	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1773	OUTPUT:	2034	OUTPUT:
1774	RETVAL	2035	RETVAL
1775		2036
1776	PROTOTYPES: DISABLE	2037	PROTOTYPES: DISABLE
1777		2038

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