ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.96 by root, Sat Dec 23 04:49:37 2006 UTC vs.
Revision 1.296 by root, Mon Sep 5 08:43:58 2022 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
16 9
17#include "autoconf/config.h" 10#if !defined mg_findext
18 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
19#include <pthread.h> 12#endif
20 13
21#include <stddef.h> 14#include <stddef.h>
22#include <stdlib.h> 15#include <stdlib.h>
23#include <errno.h> 16#include <errno.h>
24#include <sys/time.h>
25#include <sys/select.h>
26#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
27#include <sys/stat.h> 19#include <sys/stat.h>
28#include <limits.h> 20#include <limits.h>
29#include <unistd.h>
30#include <fcntl.h> 21#include <fcntl.h>
31#include <signal.h>
32#include <sched.h> 22#include <sched.h>
33 23
34#if HAVE_SENDFILE 24/* perl namespace pollution */
35# if __linux 25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
33#ifdef _WIN32
34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66 #undef utime
67
68 #define EIO_STRUCT_STAT struct _stati64
69 #define EIO_STRUCT_STATI64
70
71#else
72
73 #include <sys/time.h>
36# include <sys/sendfile.h> 74 #include <sys/select.h>
37# elif __freebsd 75 #include <sys/wait.h>
76 #include <unistd.h>
77 #include <utime.h>
78 #include <signal.h>
79
80 #define EIO_STRUCT_STAT Stat_t
81
82#endif
83
84/*****************************************************************************/
85
86#if __GNUC__ >= 3
87# define expect(expr,value) __builtin_expect ((expr),(value))
88#else
89# define expect(expr,value) (expr)
90#endif
91
92#define expect_false(expr) expect ((expr) != 0, 0)
93#define expect_true(expr) expect ((expr) != 0, 1)
94
95/*****************************************************************************/
96
97#include "config.h"
98
99#if HAVE_SYS_MKDEV_H
38# include <sys/socket.h> 100# include <sys/mkdev.h>
101#elif HAVE_SYS_SYSMACROS_H
102# include <sys/sysmacros.h>
103#endif
104
105#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
106# include <sys/mman.h>
107#endif
108
109#if HAVE_SYS_UIO_H
39# include <sys/uio.h> 110# include <sys/uio.h>
40# elif __hpux 111#endif
112
113/* MUST be included before linux/fs.h, as the latter includes
114 * linux/mount.h, which is incompatible to sys/mount.h
115 */
116#if HAVE_SYS_MOUNT_H
41# include <sys/socket.h> 117# include <sys/mount.h>
42# elif __solaris /* not yet */ 118#endif
119
120/* the incompetent fool that created musl keeps __linux__, refuses
121 * to implement any linux standard apis, and also has no way to test
122 * for his broken implementation. don't complain to me if this fails
123 * for you.
124 */
125#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
126# include <linux/fs.h> /* MUST be included after sys/mount.h */
127# ifdef FS_IOC_FIEMAP
128# include <linux/types.h>
129# include <linux/fiemap.h>
130# undef HAVE_FIEMAP
131# define HAVE_FIEMAP 1
132# endif
133#endif
134
135#if HAVE_ST_XTIMENSEC
136# define ATIMENSEC PL_statcache.st_atimensec
137# define MTIMENSEC PL_statcache.st_mtimensec
138# define CTIMENSEC PL_statcache.st_ctimensec
139#elif HAVE_ST_XTIMESPEC
140# define ATIMENSEC PL_statcache.st_atim.tv_nsec
141# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
142# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
143#else
144# define ATIMENSEC 0
145# define MTIMENSEC 0
146# define CTIMENSEC 0
147#endif
148
149#if HAVE_ST_BIRTHTIMENSEC
150# define BTIMESEC PL_statcache.st_birthtime
151# define BTIMENSEC PL_statcache.st_birthtimensec
152#elif HAVE_ST_BIRTHTIMESPEC
153# define BTIMESEC PL_statcache.st_birthtim.tv_sec
154# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
155#else
156# define BTIMESEC 0
157# define BTIMENSEC 0
158#endif
159
160#if HAVE_ST_GEN
161# define ST_GEN PL_statcache.st_gen
162#else
163# define ST_GEN 0
164#endif
165
166#include "schmorp.h"
167
168#if HAVE_EVENTFD
43# include <sys/sendfile.h> 169# include <sys/eventfd.h>
170#endif
171
172#if HAVE_TIMERFD
173# include <sys/timerfd.h>
174#endif
175
176#if HAVE_RLIMITS
177 #include <sys/time.h>
178 #include <sys/resource.h>
179#endif
180
181typedef SV SV8; /* byte-sv, used for argument-checking */
182typedef char *octet_string;
183typedef char *octet_string_ornull;
184typedef int aio_rfd; /* read file desriptor */
185typedef int aio_wfd; /* write file descriptor */
186
187static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
188
189#define EIO_REQ_MEMBERS \
190 SV *callback; \
191 SV *sv1, *sv2; \
192 SV *sv3, *sv4; \
193 STRLEN stroffset; \
194 SV *self;
195
196#define EIO_NO_WRAPPERS 1
197
198#include "libeio/eio.h"
199
200static int req_invoke (eio_req *req);
201#define EIO_FINISH(req) req_invoke (req)
202static void req_destroy (eio_req *grp);
203#define EIO_DESTROY(req) req_destroy (req)
204
205#include "libeio/eio.c"
206
207#if !HAVE_POSIX_FADVISE
208# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
209#endif
210
211#if !HAVE_POSIX_MADVISE
212# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213#endif
214
215#ifndef MAP_ANONYMOUS
216# ifdef MAP_ANON
217# define MAP_ANONYMOUS MAP_ANON
44# else 218# else
45# error sendfile support requested but not available 219# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
46# endif 220# endif
47#endif 221#endif
48 222
49/* number of seconds after which idle threads exit */ 223#ifndef makedev
50#define IDLE_TIMEOUT 10 224# define makedev(maj,min) (((maj) << 8) | (min))
51
52/* used for struct dirent, AIX doesn't provide it */
53#ifndef NAME_MAX
54# define NAME_MAX 4096
55#endif 225#endif
56 226#ifndef major
57#ifndef PTHREAD_STACK_MIN 227# define major(dev) ((dev) >> 8)
58/* care for broken platforms, e.g. windows */
59# define PTHREAD_STACK_MIN 16384
60#endif 228#endif
229#ifndef minor
230# define minor(dev) ((dev) & 0xff)
231#endif
61 232
62#if __ia64 233/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
63# define STACKSIZE 65536 234#ifdef __sun
64#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 235# undef PAGESIZE
65# define STACKSIZE PTHREAD_STACK_MIN 236#endif
237
238#if PAGESIZE <= 0
239# define PAGESIZE sysconf (_SC_PAGESIZE)
240#endif
241
242/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
243#ifdef __sun
244# undef HAVE_SYSCALL
245#endif
246
247#if HAVE_SYSCALL
248#include <sys/syscall.h>
66#else 249#else
67# define STACKSIZE 16384 250# define syscall(nr,...) (errno = ENOSYS, -1)
68#endif
69
70/* wether word reads are potentially non-atomic.
71 * this is conservatice, likely most arches this runs
72 * on have atomic word read/writes.
73 */
74#ifndef WORDACCESS_UNSAFE
75# if __i386 || __x86_64
76# define WORDACCESS_UNSAFE 0
77# else
78# define WORDACCESS_UNSAFE 1
79# endif 251#endif
80#endif
81 252
82/* buffer size for various temporary buffers */ 253/*****************************************************************************/
83#define AIO_BUFSIZE 65536
84 254
85#define dBUF \ 255#if !_POSIX_MAPPED_FILES
86 char *aio_buf; \ 256# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
87 LOCK (wrklock); \ 257# define munmap(addr,length) EIO_ENOSYS ()
88 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 258#endif
89 UNLOCK (wrklock); \ 259
90 if (!aio_buf) \ 260#if !_POSIX_MEMORY_PROTECTION
261# define mprotect(addr,len,prot) EIO_ENOSYS ()
262#endif
263
264#if !MREMAP_MAYMOVE
265# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
266#endif
267
268#define FOREIGN_MAGIC PERL_MAGIC_ext
269
270static int ecb_cold
271mmap_free (pTHX_ SV *sv, MAGIC *mg)
272{
273 int old_errno = errno;
274 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
275 errno = old_errno;
276
277 mg->mg_obj = 0; /* just in case */
278
279 SvREADONLY_off (sv);
280
281 if (SvPVX (sv) != mg->mg_ptr)
282 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
283
284 SvCUR_set (sv, 0);
285 SvPVX (sv) = 0;
286 SvOK_off (sv);
287
91 return -1; 288 return 0;
289}
92 290
93typedef SV SV8; /* byte-sv, used for argument-checking */ 291static MGVTBL mmap_vtbl = {
94 292 0, 0, 0, 0, mmap_free
95enum {
96 REQ_QUIT,
97 REQ_OPEN, REQ_CLOSE,
98 REQ_READ, REQ_WRITE, REQ_READAHEAD,
99 REQ_SENDFILE,
100 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
101 REQ_FSYNC, REQ_FDATASYNC,
102 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
103 REQ_MKNOD, REQ_READDIR,
104 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
105 REQ_GROUP, REQ_NOP,
106 REQ_BUSY,
107}; 293};
108 294
109#define AIO_REQ_KLASS "IO::AIO::REQ" 295static int ecb_cold
110#define AIO_GRP_KLASS "IO::AIO::GRP" 296sysfree_free (pTHX_ SV *sv, MAGIC *mg)
111
112typedef struct aio_cb
113{ 297{
114 struct aio_cb *volatile next; 298 free (mg->mg_ptr);
299 mg->mg_obj = 0; /* just in case */
115 300
116 SV *callback, *fh; 301 SvREADONLY_off (sv);
117 SV *sv1, *sv2;
118 void *ptr1, *ptr2;
119 off_t offs;
120 size_t size;
121 ssize_t result;
122 302
123 STRLEN stroffset; 303 if (SvPVX (sv) != mg->mg_ptr)
124 int type; 304 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
125 int int1, int2;
126 int errorno;
127 mode_t mode; /* open */
128 305
129 unsigned char flags; 306 SvCUR_set (sv, 0);
130 unsigned char pri; 307 SvPVX (sv) = 0;
308 SvOK_off (sv);
131 309
132 SV *self; /* the perl counterpart of this request, if any */ 310 return 0;
133 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 311}
134} aio_cb;
135 312
136enum { 313static MGVTBL sysfree_vtbl = {
137 FLAG_CANCELLED = 0x01, /* request was cancelled */ 314 0, 0, 0, 0, sysfree_free
138 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
139 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
140}; 315};
141 316
142typedef aio_cb *aio_req; 317/*****************************************************************************/
143typedef aio_cb *aio_req_ornot;
144 318
145enum { 319/* helper: set scalar to foreign ptr with custom free */
146 PRI_MIN = -4, 320ecb_noinline
147 PRI_MAX = 4, 321static void
148 322sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
149 DEFAULT_PRI = 0,
150 PRI_BIAS = -PRI_MIN,
151 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
152};
153
154#define AIO_TICKS ((1000000 + 1023) >> 10)
155
156static unsigned int max_poll_time = 0;
157static unsigned int max_poll_reqs = 0;
158
159/* calculcate time difference in ~1/AIO_TICKS of a second */
160static int tvdiff (struct timeval *tv1, struct timeval *tv2)
161{ 323{
162 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 324 sv_force_normal (sv);
163 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
164}
165 325
166static pthread_t main_tid; 326 /* we store the length in mg_obj, as namlen is I32 :/ */
167static int main_sig; 327 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
168static int block_sig_level; 328 ->mg_obj = (SV *)length;
169 329
170void block_sig () 330 SvUPGRADE (sv, SVt_PV); /* nop... */
171{
172 sigset_t ss;
173 331
174 if (block_sig_level++) 332 if (SvLEN (sv))
333 Safefree (SvPVX (sv));
334
335 SvPVX (sv) = (char *)addr;
336 SvCUR_set (sv, length);
337 SvLEN_set (sv, 0);
338 SvPOK_only (sv);
339}
340
341static void
342sv_clear_foreign (SV *sv)
343{
344 /* todo: iterate over magic and only free ours, but of course */
345 /* the perl5porters will call that (correct) behaviour buggy */
346 sv_unmagic (sv, FOREIGN_MAGIC);
347}
348
349/*****************************************************************************/
350
351/* defines all sorts of constants to 0 unless they are already defined */
352/* also provides const_iv_ and const_niv_ macros for them */
353#include "def0.h"
354
355/*****************************************************************************/
356
357static void
358fiemap (eio_req *req)
359{
360 req->result = -1;
361
362#if HAVE_FIEMAP
363 /* assume some c99 */
364 struct fiemap *fiemap = 0;
365 size_t end_offset;
366 int count = req->int3;
367
368 req->flags |= EIO_FLAG_PTR1_FREE;
369
370 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
371 /* increase in fixed steps */
372 if (count < 0)
373 count = 8;
374
375 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
376 errno = ENOMEM;
377 if (!fiemap)
175 return; 378 return;
176 379
177 if (!main_sig) 380 req->ptr1 = fiemap;
381
382 fiemap->fm_start = req->offs;
383 fiemap->fm_length = req->size;
384 fiemap->fm_flags = req->int2;
385 fiemap->fm_extent_count = count;
386
387 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
178 return; 388 return;
179 389
180 sigemptyset (&ss); 390 if (req->int3 >= 0 /* not autosizing */
181 sigaddset (&ss, main_sig); 391 || !fiemap->fm_mapped_extents /* no more extents */
182 pthread_sigmask (SIG_BLOCK, &ss, 0); 392 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
183} 393 goto done;
184 394
185void unblock_sig () 395 /* else we have to loop -
186{ 396 * it would be tempting (actually I tried that first) to just query the
187 sigset_t ss; 397 * number of extents needed, but linux often feels like not returning all
398 * extents, without telling us it left any out. this complicates
399 * this quite a bit.
400 */
188 401
189 if (--block_sig_level) 402 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
190 return;
191 403
192 if (!main_sig) 404 for (;;)
193 return;
194
195 sigemptyset (&ss);
196 sigaddset (&ss, main_sig);
197 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
198}
199
200static int next_pri = DEFAULT_PRI + PRI_BIAS;
201
202static unsigned int started, idle, wanted;
203
204#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
205# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
206#else
207# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
208#endif
209
210#define LOCK(mutex) pthread_mutex_lock (&(mutex))
211#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
212
213/* worker threads management */
214static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
215
216typedef struct worker {
217 /* locked by wrklock */
218 struct worker *prev, *next;
219
220 pthread_t tid;
221
222 /* locked by reslock, reqlock or wrklock */
223 aio_req req; /* currently processed request */
224 void *dbuf;
225 DIR *dirp;
226} worker;
227
228static worker wrk_first = { &wrk_first, &wrk_first, 0 };
229
230static void worker_clear (worker *wrk)
231{
232 if (wrk->dirp)
233 { 405 {
234 closedir (wrk->dirp); 406 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
235 wrk->dirp = 0; 407 char scratch[3072];
236 } 408 struct fiemap *incmap = (struct fiemap *)scratch;
237 409
238 if (wrk->dbuf) 410 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
239 { 411 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
240 free (wrk->dbuf); 412 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
241 wrk->dbuf = 0; 413 incmap->fm_flags = fiemap->fm_flags;
242 } 414 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
243}
244 415
245static void worker_free (worker *wrk) 416 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
246{
247 wrk->next->prev = wrk->prev;
248 wrk->prev->next = wrk->next;
249
250 free (wrk);
251}
252
253static volatile unsigned int nreqs, nready, npending;
254static volatile unsigned int max_idle = 4;
255static volatile unsigned int max_outstanding = 0xffffffff;
256static int respipe [2];
257
258static pthread_mutex_t reslock = AIO_MUTEX_INIT;
259static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
260static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
261
262#if WORDACCESS_UNSAFE
263
264static unsigned int get_nready ()
265{
266 unsigned int retval;
267
268 LOCK (reqlock);
269 retval = nready;
270 UNLOCK (reqlock);
271
272 return retval;
273}
274
275static unsigned int get_npending ()
276{
277 unsigned int retval;
278
279 LOCK (reslock);
280 retval = npending;
281 UNLOCK (reslock);
282
283 return retval;
284}
285
286static unsigned int get_nthreads ()
287{
288 unsigned int retval;
289
290 LOCK (wrklock);
291 retval = started;
292 UNLOCK (wrklock);
293
294 return retval;
295}
296
297#else
298
299# define get_nready() nready
300# define get_npending() npending
301# define get_nthreads() started
302
303#endif
304
305/*
306 * a somewhat faster data structure might be nice, but
307 * with 8 priorities this actually needs <20 insns
308 * per shift, the most expensive operation.
309 */
310typedef struct {
311 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
312 int size;
313} reqq;
314
315static reqq req_queue;
316static reqq res_queue;
317
318int reqq_push (reqq *q, aio_req req)
319{
320 int pri = req->pri;
321 req->next = 0;
322
323 if (q->qe[pri])
324 {
325 q->qe[pri]->next = req;
326 q->qe[pri] = req;
327 }
328 else
329 q->qe[pri] = q->qs[pri] = req;
330
331 return q->size++;
332}
333
334aio_req reqq_shift (reqq *q)
335{
336 int pri;
337
338 if (!q->size)
339 return 0; 417 return;
340 418
341 --q->size; 419 if (!incmap->fm_mapped_extents)
420 goto done;
342 421
343 for (pri = NUM_PRI; pri--; ) 422 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
344 { 423 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
345 aio_req req = q->qs[pri]; 424 errno = ENOMEM;
346
347 if (req) 425 if (!fiemap)
426 return;
427
428 req->ptr1 = fiemap;
429
430 for (count = 0; count < incmap->fm_mapped_extents; ++count)
348 { 431 {
349 if (!(q->qs[pri] = req->next)) 432 struct fiemap_extent *e = incmap->fm_extents + count;
350 q->qe[pri] = 0;
351 433
352 return req; 434 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
435
436 if (e->fe_logical >= end_offset)
437 goto done;
438
439 if (e->fe_flags & FIEMAP_EXTENT_LAST)
440 goto done;
441
353 } 442 }
354 } 443 }
355 444
356 abort (); 445done:
357} 446 req->result = 0;
358 447
359static int poll_cb (); 448#else
360static int req_invoke (aio_req req); 449 errno = ENOSYS;
450#endif
451}
452
453/*****************************************************************************/
454
455static int close_fd; /* dummy fd to close fds via dup2 */
456
457#if HAVE_STATX
458static struct statx stx;
459#define statx_offsetof(member) offsetof (struct statx, member)
460#define eio__statx statx
461#else
462#define statx_offsetof(member) 0
463#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
464#endif
465
466enum {
467 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
468};
469
470typedef eio_req *aio_req;
471typedef eio_req *aio_req_ornot;
472typedef eio_wd aio_wd;
473
474static SV *on_next_submit;
475static int next_pri = EIO_PRI_DEFAULT;
476static int max_outstanding;
477
478static s_epipe respipe;
479
361static void req_free (aio_req req); 480static void req_destroy (aio_req req);
362static void req_cancel (aio_req req); 481static void req_cancel (aio_req req);
363 482
483static void
484want_poll (void)
485{
486 /* write a dummy byte to the pipe so fh becomes ready */
487 s_epipe_signal (&respipe);
488}
489
490static void
491done_poll (void)
492{
493 /* read any signals sent by the worker threads */
494 s_epipe_drain (&respipe);
495}
496
364/* must be called at most once */ 497/* must be called at most once */
365static SV *req_sv (aio_req req, const char *klass) 498ecb_noinline
499static SV *
500req_sv (aio_req req, HV *stash)
366{ 501{
367 if (!req->self) 502 if (!req->self)
368 { 503 {
369 req->self = (SV *)newHV (); 504 req->self = (SV *)newHV ();
370 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 505 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
371 } 506 }
372 507
373 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 508 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
374} 509}
375 510
376static aio_req SvAIO_REQ (SV *sv) 511static SV *
512newSVaio_wd (aio_wd wd)
513{
514 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
515}
516
517ecb_noinline
518static aio_req
519SvAIO_REQ (SV *sv)
377{ 520{
378 MAGIC *mg; 521 MAGIC *mg;
379 522
380 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 523 if (!SvROK (sv)
524 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
525 || (SvSTASH (SvRV (sv)) != aio_grp_stash
526 && SvSTASH (SvRV (sv)) != aio_req_stash
527 && !sv_derived_from (sv, "IO::AIO::REQ")))
381 croak ("object of class " AIO_REQ_KLASS " expected"); 528 croak ("object of class IO::AIO::REQ expected");
382 529
383 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 530 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
384 531
385 return mg ? (aio_req)mg->mg_ptr : 0; 532 return mg ? (aio_req)mg->mg_ptr : 0;
386} 533}
387 534
535static aio_wd
536SvAIO_WD (SV *sv)
537{
538 if (!SvROK (sv)
539 || SvTYPE (SvRV (sv)) != SVt_PVMG
540 || SvSTASH (SvRV (sv)) != aio_wd_stash)
541 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
542
543 return (aio_wd)(long)SvIVX (SvRV (sv));
544}
545
546static SV *
547newmortalFH (int fd, int flags)
548{
549 if (fd < 0)
550 return &PL_sv_undef;
551
552 GV *gv = (GV *)sv_newmortal ();
553 char sym[64];
554 int symlen;
555
556 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
557 gv_init (gv, aio_stash, sym, symlen, 0);
558
559 symlen = snprintf (
560 sym,
561 sizeof (sym),
562 "%s&=%d",
563 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564 fd
565 );
566
567 return do_open (gv, sym, symlen, 0, 0, 0, 0)
568 ? (SV *)gv : &PL_sv_undef;
569}
570
571static void
388static void aio_grp_feed (aio_req grp) 572aio_grp_feed (aio_req grp)
389{ 573{
390 block_sig (); 574 if (grp->sv2 && SvOK (grp->sv2))
391
392 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
393 { 575 {
394 int old_len = grp->size;
395
396 if (grp->sv2 && SvOK (grp->sv2))
397 {
398 dSP; 576 dSP;
399 577
400 ENTER; 578 ENTER;
401 SAVETMPS; 579 SAVETMPS;
402 PUSHMARK (SP); 580 PUSHMARK (SP);
403 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 581 XPUSHs (req_sv (grp, aio_grp_stash));
404 PUTBACK; 582 PUTBACK;
405 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 583 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
406 SPAGAIN; 584 SPAGAIN;
407 FREETMPS; 585 FREETMPS;
408 LEAVE; 586 LEAVE;
409 }
410
411 /* stop if no progress has been made */
412 if (old_len == grp->size)
413 {
414 SvREFCNT_dec (grp->sv2);
415 grp->sv2 = 0;
416 break;
417 }
418 } 587 }
419
420 unblock_sig ();
421} 588}
422 589
423static void aio_grp_dec (aio_req grp) 590ecb_noinline
591static void
592req_submit (eio_req *req)
424{ 593{
425 --grp->size; 594 eio_submit (req);
426 595
427 /* call feeder, if applicable */ 596 if (expect_false (on_next_submit))
428 aio_grp_feed (grp);
429
430 /* finish, if done */
431 if (!grp->size && grp->int1)
432 { 597 {
433 block_sig (); 598 dSP;
599 SV *cb = sv_2mortal (on_next_submit);
434 600
435 if (!req_invoke (grp)) 601 on_next_submit = 0;
436 {
437 req_free (grp);
438 unblock_sig ();
439 croak (0);
440 }
441 602
442 req_free (grp); 603 PUSHMARK (SP);
443 unblock_sig (); 604 PUTBACK;
605 call_sv (cb, G_DISCARD | G_EVAL);
444 } 606 }
445} 607}
446 608
609static int
447static int req_invoke (aio_req req) 610req_invoke (eio_req *req)
448{ 611{
449 dSP;
450
451 if (req->flags & FLAG_SV1_RO_OFF) 612 if (req->flags & FLAG_SV2_RO_OFF)
452 SvREADONLY_off (req->sv1); 613 SvREADONLY_off (req->sv2);
453 614
454 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 615 if (!EIO_CANCELLED (req) && req->callback)
455 { 616 {
617 dSP;
618 static SV *sv_result_cache; /* caches the result integer SV */
619 SV *sv_result;
620
456 ENTER; 621 ENTER;
457 SAVETMPS; 622 SAVETMPS;
458 PUSHMARK (SP); 623 PUSHMARK (SP);
459 EXTEND (SP, 1); 624 EXTEND (SP, 1);
460 625
626 /* do not recreate the result IV from scratch each time */
627 if (expect_true (sv_result_cache))
628 {
629 sv_result = sv_result_cache; sv_result_cache = 0;
630 SvIV_set (sv_result, req->result);
631 SvIOK_only (sv_result);
632 }
633 else
634 {
635 sv_result = newSViv (req->result);
636 SvREADONLY_on (sv_result);
637 }
638
461 switch (req->type) 639 switch (req->type)
462 { 640 {
641 case EIO_WD_OPEN:
642 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
643 break;
644
463 case REQ_READDIR: 645 case EIO_READDIR:
464 { 646 {
465 SV *rv = &PL_sv_undef; 647 SV *rv = &PL_sv_undef;
466 648
467 if (req->result >= 0) 649 if (req->result >= 0)
468 { 650 {
469 int i; 651 int i;
470 char *buf = req->ptr2; 652 char *names = (char *)req->ptr2;
653 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
471 AV *av = newAV (); 654 AV *av = newAV ();
472 655
473 av_extend (av, req->result - 1); 656 av_extend (av, req->result - 1);
474 657
475 for (i = 0; i < req->result; ++i) 658 for (i = 0; i < req->result; ++i)
476 { 659 {
477 SV *sv = newSVpv (buf, 0); 660 if (req->int1 & EIO_READDIR_DENTS)
661 {
662 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
478 663
664 if (req->int1 & EIO_READDIR_CUSTOM2)
665 {
666 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
667 AV *avent = newAV ();
668
669 av_extend (avent, 2);
670
671 if (!sv_type [ent->type])
672 {
673 sv_type [ent->type] = newSViv (ent->type);
674 SvREADONLY_on (sv_type [ent->type]);
675 }
676
677 av_store (avent, 0, namesv);
678 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
679 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
680
681 av_store (av, i, newRV_noinc ((SV *)avent));
682 }
683 else
479 av_store (av, i, sv); 684 av_store (av, i, namesv);
685
686 ++ent;
687 }
688 else
689 {
690 SV *name = newSVpv (names, 0);
691 av_store (av, i, name);
480 buf += SvCUR (sv) + 1; 692 names += SvCUR (name) + 1;
693 }
481 } 694 }
482 695
483 rv = sv_2mortal (newRV_noinc ((SV *)av)); 696 rv = sv_2mortal (newRV_noinc ((SV *)av));
484 } 697 }
485 698
486 PUSHs (rv); 699 PUSHs (rv);
700
701 if (req->int1 & EIO_READDIR_CUSTOM1)
702 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
487 } 703 }
488 break; 704 break;
489 705
490 case REQ_OPEN: 706 case EIO_OPEN:
707 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
708 break;
709
710 case EIO_STATVFS:
711 case EIO_FSTATVFS:
491 { 712 {
492 /* convert fd to fh */ 713 SV *rv = &PL_sv_undef;
493 SV *fh; 714
715#ifndef _WIN32
716 if (req->result >= 0)
717 {
718 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
719 HV *hv = newHV ();
720 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
721 * chooses to make it a struct.
722 */
723 unsigned long fsid = 0;
724 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
494 725
495 PUSHs (sv_2mortal (newSViv (req->result))); 726 rv = sv_2mortal (newRV_noinc ((SV *)hv));
496 PUTBACK;
497 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
498 SPAGAIN;
499 727
500 fh = POPs; 728 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
501 PUSHMARK (SP); 729 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
730 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
731 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
732 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
733 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
734 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
735 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
736 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
737 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
738 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
739 }
740#endif
741
502 XPUSHs (fh); 742 PUSHs (rv);
503 } 743 }
744
504 break; 745 break;
505 746
506 case REQ_GROUP: 747 case EIO_GROUP:
507 req->int1 = 2; /* mark group as finished */ 748 req->int1 = 2; /* mark group as finished */
508 749
509 if (req->sv1) 750 if (req->sv1)
510 { 751 {
511 int i; 752 int i;
… …
515 for (i = 0; i <= AvFILL (av); ++i) 756 for (i = 0; i <= AvFILL (av); ++i)
516 PUSHs (*av_fetch (av, i, 0)); 757 PUSHs (*av_fetch (av, i, 0));
517 } 758 }
518 break; 759 break;
519 760
520 case REQ_NOP: 761 case EIO_NOP:
521 case REQ_BUSY: 762 case EIO_BUSY:
522 break; 763 break;
523 764
524 case REQ_READLINK: 765 case EIO_READLINK:
766 case EIO_REALPATH:
525 if (req->result > 0) 767 if (req->result > 0)
768 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
769 break;
770
771 case EIO_STAT:
772 case EIO_LSTAT:
773 case EIO_FSTAT:
774 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
775
776 if (!(PL_laststatval = req->result))
777 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
778 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
779
780 PUSHs (sv_result);
781 break;
782
783 case EIO_SEEK:
784 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
785 break;
786
787 case EIO_READ:
788 {
789 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
790 *SvEND (req->sv2) = 0;
791 SvPOK_only (req->sv2);
792 SvSETMAGIC (req->sv2);
793 PUSHs (sv_result);
794 }
795 break;
796
797 case EIO_SLURP:
798 {
799 if (req->result >= 0)
800 {
801 /* if length was originally not known, we steal the malloc'ed memory */
802 if (req->flags & EIO_FLAG_PTR2_FREE)
803 {
804 req->flags &= ~EIO_FLAG_PTR2_FREE;
805 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
806 }
807 else
808 {
809 SvCUR_set (req->sv2, req->result);
810 *SvEND (req->sv2) = 0;
811 SvPOK_only (req->sv2);
812 }
813
814 SvSETMAGIC (req->sv2);
815 }
816
817 PUSHs (sv_result);
818 }
819 break;
820
821 case EIO_CUSTOM:
822 if (req->feed == fiemap)
526 { 823 {
527 SvCUR_set (req->sv1, req->result); 824#if HAVE_FIEMAP
528 *SvEND (req->sv1) = 0;
529 PUSHs (req->sv1); 825 if (!req->result)
826 {
827 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
828
829 if (fiemap->fm_extent_count)
830 {
831 AV *av = newAV ();
832 int i;
833
834 while (fiemap->fm_mapped_extents)
835 {
836 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
837 AV *ext_av = newAV ();
838
839 av_store (ext_av, 3, newSVuv (extent->fe_flags));
840 av_store (ext_av, 2, newSVval64 (extent->fe_length));
841 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
842 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
843
844 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
845 }
846
847 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
848 }
849 else
850 {
851 SvIV_set (sv_result, fiemap->fm_mapped_extents);
852 PUSHs (sv_result);
853 }
854 }
855#endif
530 } 856 }
857 else
858 PUSHs (sv_result);
531 break; 859 break;
532 860
533 case REQ_STAT: 861#if 0
534 case REQ_LSTAT: 862 case EIO_CLOSE:
535 case REQ_FSTAT: 863 PerlIOUnix_refcnt_dec (req->int1);
536 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
537 PL_laststatval = req->result;
538 PL_statcache = *(Stat_t *)(req->ptr2);
539 PUSHs (sv_2mortal (newSViv (req->result)));
540 break; 864 break;
865#endif
541 866
542 case REQ_READ: 867 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
543 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 868 if (req->result > 0)
544 *SvEND (req->sv1) = 0; 869 SvIV_set (sv_result, 0);
545 PUSHs (sv_2mortal (newSViv (req->result))); 870 /* FALLTHROUGH */
546 break;
547 871
548 default: 872 default:
549 PUSHs (sv_2mortal (newSViv (req->result))); 873 PUSHs (sv_result);
550 break; 874 break;
551 } 875 }
552 876
553 errno = req->errorno; 877 errno = req->errorno;
554 878
555 PUTBACK; 879 PUTBACK;
556 call_sv (req->callback, G_VOID | G_EVAL); 880 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
557 SPAGAIN; 881 SPAGAIN;
882
883 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
884 SvREFCNT_dec (sv_result);
885 else
886 sv_result_cache = sv_result;
558 887
559 FREETMPS; 888 FREETMPS;
560 LEAVE; 889 LEAVE;
890
891 PUTBACK;
561 } 892 }
562 893
563 if (req->grp)
564 {
565 aio_req grp = req->grp;
566
567 /* unlink request */
568 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
569 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
570
571 if (grp->grp_first == req)
572 grp->grp_first = req->grp_next;
573
574 aio_grp_dec (grp);
575 }
576
577 return !SvTRUE (ERRSV); 894 return !!SvTRUE (ERRSV);
578} 895}
579 896
580static void req_free (aio_req req) 897static void
898req_destroy (aio_req req)
581{ 899{
582 if (req->self) 900 if (req->self)
583 { 901 {
584 sv_unmagic (req->self, PERL_MAGIC_ext); 902 sv_unmagic (req->self, PERL_MAGIC_ext);
585 SvREFCNT_dec (req->self); 903 SvREFCNT_dec (req->self);
586 } 904 }
587 905
588 SvREFCNT_dec (req->fh);
589 SvREFCNT_dec (req->sv1); 906 SvREFCNT_dec (req->sv1);
590 SvREFCNT_dec (req->sv2); 907 SvREFCNT_dec (req->sv2);
908 SvREFCNT_dec (req->sv3);
909 SvREFCNT_dec (req->sv4);
591 SvREFCNT_dec (req->callback); 910 SvREFCNT_dec (req->callback);
592 911
593 if (req->flags & FLAG_PTR2_FREE)
594 free (req->ptr2);
595
596 Safefree (req); 912 free (req);
597} 913}
598 914
915static void
599static void req_cancel_subs (aio_req grp) 916req_cancel_subs (aio_req grp)
600{ 917{
601 aio_req sub;
602
603 if (grp->type != REQ_GROUP) 918 if (grp->type != EIO_GROUP)
604 return; 919 return;
605 920
606 SvREFCNT_dec (grp->sv2); 921 SvREFCNT_dec (grp->sv2);
607 grp->sv2 = 0; 922 grp->sv2 = 0;
608 923
609 for (sub = grp->grp_first; sub; sub = sub->grp_next) 924 eio_grp_cancel (grp);
610 req_cancel (sub);
611} 925}
612 926
613static void req_cancel (aio_req req) 927ecb_cold
928static void
929create_respipe (void)
614{ 930{
615 req->flags |= FLAG_CANCELLED; 931 if (s_epipe_renew (&respipe))
616 932 croak ("IO::AIO: unable to initialize result pipe");
617 req_cancel_subs (req);
618} 933}
619 934
620static void *aio_proc(void *arg); 935static void
621 936poll_wait (void)
622static void start_thread (void)
623{ 937{
624 sigset_t fullsigset, oldsigset;
625 pthread_attr_t attr;
626
627 worker *wrk = calloc (1, sizeof (worker));
628
629 if (!wrk)
630 croak ("unable to allocate worker thread data");
631
632 pthread_attr_init (&attr);
633 pthread_attr_setstacksize (&attr, STACKSIZE);
634 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
635#ifdef PTHREAD_SCOPE_PROCESS
636 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
637#endif
638
639 sigfillset (&fullsigset);
640
641 LOCK (wrklock);
642 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
643
644 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
645 {
646 wrk->prev = &wrk_first;
647 wrk->next = wrk_first.next;
648 wrk_first.next->prev = wrk;
649 wrk_first.next = wrk;
650 ++started;
651 }
652 else
653 free (wrk);
654
655 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
656 UNLOCK (wrklock);
657}
658
659static void maybe_start_thread ()
660{
661 if (get_nthreads () >= wanted)
662 return;
663
664 /* todo: maybe use idle here, but might be less exact */
665 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
666 return;
667
668 start_thread ();
669}
670
671static void req_send (aio_req req)
672{
673 block_sig ();
674
675 ++nreqs;
676
677 LOCK (reqlock);
678 ++nready;
679 reqq_push (&req_queue, req);
680 pthread_cond_signal (&reqwait);
681 UNLOCK (reqlock);
682
683 unblock_sig ();
684
685 maybe_start_thread ();
686}
687
688static void end_thread (void)
689{
690 aio_req req;
691
692 Newz (0, req, 1, aio_cb);
693
694 req->type = REQ_QUIT;
695 req->pri = PRI_MAX + PRI_BIAS;
696
697 LOCK (reqlock);
698 reqq_push (&req_queue, req);
699 pthread_cond_signal (&reqwait);
700 UNLOCK (reqlock);
701
702 LOCK (wrklock);
703 --started;
704 UNLOCK (wrklock);
705}
706
707static void set_max_idle (int nthreads)
708{
709 if (WORDACCESS_UNSAFE) LOCK (reqlock);
710 max_idle = nthreads <= 0 ? 1 : nthreads;
711 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
712}
713
714static void min_parallel (int nthreads)
715{
716 if (wanted < nthreads)
717 wanted = nthreads;
718}
719
720static void max_parallel (int nthreads)
721{
722 if (wanted > nthreads)
723 wanted = nthreads;
724
725 while (started > wanted)
726 end_thread ();
727}
728
729static void poll_wait ()
730{
731 fd_set rfd;
732
733 while (nreqs) 938 while (eio_nreqs ())
734 { 939 {
735 int size; 940 int size;
736 if (WORDACCESS_UNSAFE) LOCK (reslock); 941
942 X_LOCK (EIO_POOL->reslock);
737 size = res_queue.size; 943 size = EIO_POOL->res_queue.size;
738 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 944 X_UNLOCK (EIO_POOL->reslock);
739 945
740 if (size) 946 if (size)
741 return; 947 return;
742 948
743 maybe_start_thread (); 949 etp_maybe_start_thread (EIO_POOL);
744 950
745 FD_ZERO(&rfd); 951 s_epipe_wait (&respipe);
746 FD_SET(respipe [0], &rfd);
747
748 select (respipe [0] + 1, &rfd, 0, 0, 0);
749 } 952 }
750} 953}
751 954
752static int poll_cb () 955static int
956poll_cb (void)
753{ 957{
754 dSP;
755 int count = 0;
756 int maxreqs = max_poll_reqs;
757 int do_croak = 0;
758 struct timeval tv_start, tv_now;
759 aio_req req;
760
761 if (max_poll_time)
762 gettimeofday (&tv_start, 0);
763
764 block_sig ();
765
766 for (;;) 958 for (;;)
767 { 959 {
768 for (;;) 960 int res = eio_poll ();
961
962 if (res > 0)
963 croak (0);
964
965 if (!max_outstanding || max_outstanding > eio_nreqs ())
966 return res;
967
968 poll_wait ();
969 }
970}
971
972ecb_cold
973static void
974reinit (void)
975{
976 create_respipe ();
977
978 if (eio_init (want_poll, done_poll) < 0)
979 croak ("IO::AIO: unable to initialise eio library");
980}
981
982/*****************************************************************************/
983
984static SV *
985get_cb (SV *cb_sv)
986{
987 SvGETMAGIC (cb_sv);
988 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
989}
990
991ecb_noinline
992static aio_req ecb_noinline
993dreq (SV *callback)
994{
995 SV *cb_cv;
996 aio_req req;
997 int req_pri = next_pri;
998 next_pri = EIO_PRI_DEFAULT;
999
1000 cb_cv = get_cb (callback);
1001
1002 req = calloc (sizeof (*req), 1);
1003 if (!req)
1004 croak ("out of memory during eio_req allocation");
1005
1006 req->callback = SvREFCNT_inc (cb_cv);
1007 req->pri = req_pri;
1008
1009 return req;
1010}
1011
1012#define dREQ \
1013 aio_req req = dreq (callback); \
1014
1015#define REQ_SEND \
1016 PUTBACK; \
1017 req_submit (req); \
1018 SPAGAIN; \
1019 \
1020 if (GIMME_V != G_VOID) \
1021 XPUSHs (req_sv (req, aio_req_stash));
1022
1023/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1024ecb_inline
1025void
1026req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1027{
1028 if (expect_false (SvROK (path)))
1029 {
1030 SV *rv = SvRV (path);
1031 SV *wdob;
1032
1033 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
769 { 1034 {
770 maybe_start_thread (); 1035 path = AvARRAY (rv)[1];
1036 wdob = AvARRAY (rv)[0];
771 1037
772 LOCK (reslock); 1038 if (SvOK (wdob))
773 req = reqq_shift (&res_queue);
774
775 if (req)
776 { 1039 {
777 --npending; 1040 *wd = SvAIO_WD (wdob);
778 1041 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
779 if (!res_queue.size)
780 {
781 /* read any signals sent by the worker threads */
782 char buf [4];
783 while (read (respipe [0], buf, 4) == 4)
784 ;
785 }
786 }
787
788 UNLOCK (reslock);
789
790 if (!req)
791 break;
792
793 --nreqs;
794
795 if (req->type == REQ_GROUP && req->size)
796 {
797 req->int1 = 1; /* mark request as delayed */
798 continue;
799 } 1042 }
800 else 1043 else
801 { 1044 *wd = EIO_INVALID_WD;
802 if (!req_invoke (req))
803 {
804 req_free (req);
805 unblock_sig ();
806 croak (0);
807 }
808
809 count++;
810 }
811
812 req_free (req);
813
814 if (maxreqs && !--maxreqs)
815 break;
816
817 if (max_poll_time)
818 {
819 gettimeofday (&tv_now, 0);
820
821 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
822 break;
823 }
824 } 1045 }
1046 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1047 {
1048 *wd = (aio_wd)(long)SvIVX (rv);
1049 *wdsv = SvREFCNT_inc_NN (rv);
1050 *ptr = ".";
1051 return; /* path set to "." */
1052 }
1053 else
1054 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1055 }
825 1056
826 if (nreqs <= max_outstanding) 1057 *pathsv = newSVsv (path);
1058 *ptr = SvPVbyte_nolen (*pathsv);
1059}
1060
1061ecb_noinline
1062static void
1063req_set_path1 (aio_req req, SV *path)
1064{
1065 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1066}
1067
1068ecb_noinline
1069static void
1070req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1071{
1072 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1073
1074 switch (SvTYPE (rv))
1075 {
1076 case SVt_PVIO:
1077 case SVt_PVLV:
1078 case SVt_PVGV:
1079 req->type = type_fh;
1080 req->sv1 = newSVsv (fh_or_path);
1081 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
827 break; 1082 break;
828 1083
829 poll_wait (); 1084 default:
830 1085 req->type = type_path;
831 ++maxreqs; 1086 req_set_path1 (req, fh_or_path);
1087 break;
832 } 1088 }
833
834 unblock_sig ();
835 return count;
836}
837
838static void create_pipe ()
839{
840 if (pipe (respipe))
841 croak ("unable to initialize result pipe");
842
843 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
844 croak ("cannot set result pipe to nonblocking mode");
845
846 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
847 croak ("cannot set result pipe to nonblocking mode");
848} 1089}
849 1090
850/*****************************************************************************/ 1091/*****************************************************************************/
851/* work around various missing functions */
852 1092
853#if !HAVE_PREADWRITE 1093static void
854# define pread aio_pread 1094ts_set (struct timespec *ts, NV value)
855# define pwrite aio_pwrite
856
857/*
858 * make our pread/pwrite safe against themselves, but not against
859 * normal read/write by using a mutex. slows down execution a lot,
860 * but that's your problem, not mine.
861 */
862static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
863
864static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
865{ 1095{
866 ssize_t res; 1096 ts->tv_sec = value;
867 off_t ooffset; 1097 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
868
869 LOCK (preadwritelock);
870 ooffset = lseek (fd, 0, SEEK_CUR);
871 lseek (fd, offset, SEEK_SET);
872 res = read (fd, buf, count);
873 lseek (fd, ooffset, SEEK_SET);
874 UNLOCK (preadwritelock);
875
876 return res;
877} 1098}
878 1099
879static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1100static NV
1101ts_get (const struct timespec *ts)
880{ 1102{
881 ssize_t res; 1103 return ts->tv_sec + ts->tv_nsec * 1e-9;
882 off_t ooffset;
883
884 LOCK (preadwritelock);
885 ooffset = lseek (fd, 0, SEEK_CUR);
886 lseek (fd, offset, SEEK_SET);
887 res = write (fd, buf, count);
888 lseek (fd, offset, SEEK_SET);
889 UNLOCK (preadwritelock);
890
891 return res;
892} 1104}
893#endif
894 1105
895#if !HAVE_FDATASYNC 1106/*****************************************************************************/
896# define fdatasync fsync
897#endif
898 1107
899#if !HAVE_READAHEAD 1108/* extract a ref-to-array of strings into a temporary c style string vector */
900# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 1109static char **
901 1110extract_stringvec (SV *sv, const char *croakmsg)
902static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
903{ 1111{
904 dBUF; 1112 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
1113 croak (croakmsg);
905 1114
906 while (count > 0) 1115 AV *av = (AV *)SvRV (sv);
1116 int i, nelem = av_len (av) + 1;
1117 char **vecp = (char **)SvPVX (sv_2mortal (newSV (sizeof (char *) * (nelem + 1))));
1118
1119 for (i = 0; i < nelem; ++i)
907 { 1120 {
908 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 1121 SV **e = av_fetch (av, i, 0);
909 1122
910 pread (fd, aio_buf, len, offset); 1123 if (e && *e)
911 offset += len; 1124 vecp[i] = SvPVbyte_nolen (*e);
912 count -= len; 1125 else
1126 vecp[i] = "";
913 } 1127 }
914 1128
915 errno = 0; 1129 vecp[nelem] = 0;
916}
917 1130
918#endif 1131 return vecp;
919
920#if !HAVE_READDIR_R
921# define readdir_r aio_readdir_r
922
923static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
924
925static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
926{
927 struct dirent *e;
928 int errorno;
929
930 LOCK (readdirlock);
931
932 e = readdir (dirp);
933 errorno = errno;
934
935 if (e)
936 {
937 *res = ent;
938 strcpy (ent->d_name, e->d_name);
939 }
940 else
941 *res = 0;
942
943 UNLOCK (readdirlock);
944
945 errno = errorno;
946 return e ? 0 : -1;
947} 1132}
948#endif
949 1133
950/* sendfile always needs emulation */ 1134/*****************************************************************************/
951static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
952{
953 ssize_t res;
954 1135
955 if (!count) 1136XS(boot_IO__AIO) ecb_cold;
956 return 0;
957 1137
958#if HAVE_SENDFILE 1138MODULE = IO::AIO PACKAGE = IO::AIO
959# if __linux
960 res = sendfile (ofd, ifd, &offset, count);
961 1139
962# elif __freebsd 1140PROTOTYPES: ENABLE
963 /* 1141
964 * Of course, the freebsd sendfile is a dire hack with no thoughts 1142BOOT:
965 * wasted on making it similar to other I/O functions. 1143{
966 */ 1144 static const struct {
1145 const char *name;
1146 IV iv;
1147 } *civ, const_iv[] = {
1148# define const_niv(name, value) { # name, (IV) value },
1149# define const_iv(name) { # name, (IV) name },
1150# define const_eio(name) { # name, (IV) EIO_ ## name },
1151
1152 /* you have to re-run ./gendef0 after adding/removing any constants here */
1153 /* the first block can be undef if missing */
1154 const_iv (ENOSYS)
1155 const_iv (EXDEV)
1156 const_iv (EBADR)
1157
1158 /* for lseek */
1159 const_iv (SEEK_DATA)
1160 const_iv (SEEK_HOLE)
1161
1162 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1163 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1164 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1165 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1166 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1167 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1168
1169 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1170 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1171 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1172 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1173 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1174
1175 /* the second block will be 0 when missing */
1176 const_iv (O_ACCMODE)
1177
1178 const_iv (O_RDONLY)
1179 const_iv (O_WRONLY)
1180 const_iv (O_RDWR)
1181 const_iv (O_CREAT)
1182 const_iv (O_TRUNC)
1183 const_iv (O_EXCL)
1184 const_iv (O_APPEND)
1185
1186 const_iv (O_ASYNC)
1187 const_iv (O_DIRECT)
1188 const_iv (O_NOATIME)
1189
1190 const_iv (O_CLOEXEC)
1191 const_iv (O_NOCTTY)
1192 const_iv (O_NOFOLLOW)
1193 const_iv (O_NONBLOCK)
1194 const_iv (O_EXEC)
1195 const_iv (O_SEARCH)
1196 const_iv (O_DIRECTORY)
1197 const_iv (O_DSYNC)
1198 const_iv (O_RSYNC)
1199 const_iv (O_SYNC)
1200 const_iv (O_PATH)
1201 const_iv (O_TMPFILE)
1202 const_iv (O_TTY_INIT)
1203
1204 const_iv (S_IFIFO)
1205 const_iv (S_IFCHR)
1206 const_iv (S_IFBLK)
1207 const_iv (S_IFLNK)
1208 const_iv (S_IFREG)
1209 const_iv (S_IFDIR)
1210 const_iv (S_IFWHT)
1211 const_iv (S_IFSOCK)
1212 const_iv (S_IFMT)
1213
1214 const_iv (ST_RDONLY)
1215 const_iv (ST_NOSUID)
1216 const_iv (ST_NODEV)
1217 const_iv (ST_NOEXEC)
1218 const_iv (ST_SYNCHRONOUS)
1219 const_iv (ST_MANDLOCK)
1220 const_iv (ST_WRITE)
1221 const_iv (ST_APPEND)
1222 const_iv (ST_IMMUTABLE)
1223 const_iv (ST_NOATIME)
1224 const_iv (ST_NODIRATIME)
1225 const_iv (ST_RELATIME)
1226
1227 const_iv (PROT_NONE)
1228 const_iv (PROT_EXEC)
1229 const_iv (PROT_READ)
1230 const_iv (PROT_WRITE)
1231
1232 const_iv (MAP_PRIVATE)
1233 const_iv (MAP_SHARED)
1234 const_iv (MAP_FIXED)
1235 const_iv (MAP_ANONYMOUS)
1236
1237 /* linuxish */
1238 const_iv (MAP_LOCKED)
1239 const_iv (MAP_NORESERVE)
1240 const_iv (MAP_POPULATE)
1241 const_iv (MAP_NONBLOCK)
1242 const_iv (MAP_GROWSDOWN)
1243 const_iv (MAP_32BIT)
1244 const_iv (MAP_HUGETLB)
1245 const_iv (MAP_STACK)
1246 const_iv (MAP_FIXED_NOREPLACE)
1247 const_iv (MAP_SHARED_VALIDATE)
1248 const_iv (MAP_SYNC)
1249 const_iv (MAP_UNINITIALIZED)
1250
1251 const_iv (MREMAP_MAYMOVE)
1252 const_iv (MREMAP_FIXED)
1253
1254 const_iv (MSG_CMSG_CLOEXEC)
1255 const_iv (SOCK_CLOEXEC)
1256
1257 const_iv (F_DUPFD_CLOEXEC)
1258
1259 const_iv (F_ADD_SEALS)
1260 const_iv (F_GET_SEALS)
1261 const_iv (F_SEAL_SEAL)
1262 const_iv (F_SEAL_SHRINK)
1263 const_iv (F_SEAL_GROW)
1264 const_iv (F_SEAL_WRITE)
1265
1266 const_iv (F_OFD_GETLK)
1267 const_iv (F_OFD_SETLK)
1268 const_iv (F_OFD_GETLKW)
1269
1270 const_iv (FIFREEZE)
1271 const_iv (FITHAW)
1272 const_iv (FITRIM)
1273 const_iv (FICLONE)
1274 const_iv (FICLONERANGE)
1275 const_iv (FIDEDUPERANGE)
1276
1277 const_iv (FS_IOC_GETFLAGS)
1278 const_iv (FS_IOC_SETFLAGS)
1279 const_iv (FS_IOC_GETVERSION)
1280 const_iv (FS_IOC_SETVERSION)
1281 const_iv (FS_IOC_FIEMAP)
1282 const_iv (FS_IOC_FSGETXATTR)
1283 const_iv (FS_IOC_FSSETXATTR)
1284 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1285 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1286 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1287
1288 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1289
1290 const_iv (FS_SECRM_FL)
1291 const_iv (FS_UNRM_FL)
1292 const_iv (FS_COMPR_FL)
1293 const_iv (FS_SYNC_FL)
1294 const_iv (FS_IMMUTABLE_FL)
1295 const_iv (FS_APPEND_FL)
1296 const_iv (FS_NODUMP_FL)
1297 const_iv (FS_NOATIME_FL)
1298 const_iv (FS_DIRTY_FL)
1299 const_iv (FS_COMPRBLK_FL)
1300 const_iv (FS_NOCOMP_FL)
1301 const_iv (FS_ENCRYPT_FL)
1302 const_iv (FS_BTREE_FL)
1303 const_iv (FS_INDEX_FL)
1304 const_iv (FS_JOURNAL_DATA_FL)
1305 const_iv (FS_NOTAIL_FL)
1306 const_iv (FS_DIRSYNC_FL)
1307 const_iv (FS_TOPDIR_FL)
1308 const_iv (FS_FL_USER_MODIFIABLE)
1309
1310 const_iv (FS_XFLAG_REALTIME)
1311 const_iv (FS_XFLAG_PREALLOC)
1312 const_iv (FS_XFLAG_IMMUTABLE)
1313 const_iv (FS_XFLAG_APPEND)
1314 const_iv (FS_XFLAG_SYNC)
1315 const_iv (FS_XFLAG_NOATIME)
1316 const_iv (FS_XFLAG_NODUMP)
1317 const_iv (FS_XFLAG_RTINHERIT)
1318 const_iv (FS_XFLAG_PROJINHERIT)
1319 const_iv (FS_XFLAG_NOSYMLINKS)
1320 const_iv (FS_XFLAG_EXTSIZE)
1321 const_iv (FS_XFLAG_EXTSZINHERIT)
1322 const_iv (FS_XFLAG_NODEFRAG)
1323 const_iv (FS_XFLAG_FILESTREAM)
1324 const_iv (FS_XFLAG_DAX)
1325 const_iv (FS_XFLAG_HASATTR)
1326
1327 const_iv (FIEMAP_FLAG_SYNC)
1328 const_iv (FIEMAP_FLAG_XATTR)
1329 const_iv (FIEMAP_FLAGS_COMPAT)
1330 const_iv (FIEMAP_EXTENT_LAST)
1331 const_iv (FIEMAP_EXTENT_UNKNOWN)
1332 const_iv (FIEMAP_EXTENT_DELALLOC)
1333 const_iv (FIEMAP_EXTENT_ENCODED)
1334 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1335 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1336 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1337 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1338 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1339 const_iv (FIEMAP_EXTENT_MERGED)
1340 const_iv (FIEMAP_EXTENT_SHARED)
1341
1342 const_iv (SPLICE_F_MOVE)
1343 const_iv (SPLICE_F_NONBLOCK)
1344 const_iv (SPLICE_F_MORE)
1345 const_iv (SPLICE_F_GIFT)
1346
1347 const_iv (EFD_CLOEXEC)
1348 const_iv (EFD_NONBLOCK)
1349 const_iv (EFD_SEMAPHORE)
1350
1351 const_iv (MFD_CLOEXEC)
1352 const_iv (MFD_ALLOW_SEALING)
1353 const_iv (MFD_HUGETLB)
1354 const_iv (MFD_HUGETLB_2MB)
1355 const_iv (MFD_HUGETLB_1GB)
1356
1357 const_iv (CLOCK_REALTIME)
1358 const_iv (CLOCK_MONOTONIC)
1359 const_iv (CLOCK_BOOTTIME)
1360 const_iv (CLOCK_REALTIME_ALARM)
1361 const_iv (CLOCK_BOOTTIME_ALARM)
1362
1363 const_iv (TFD_NONBLOCK)
1364 const_iv (TFD_CLOEXEC)
1365
1366 const_iv (TFD_TIMER_ABSTIME)
1367 const_iv (TFD_TIMER_CANCEL_ON_SET)
1368
1369 const_iv (STATX_TYPE)
1370 const_iv (STATX_MODE)
1371 const_iv (STATX_NLINK)
1372 const_iv (STATX_UID)
1373 const_iv (STATX_GID)
1374 const_iv (STATX_ATIME)
1375 const_iv (STATX_MTIME)
1376 const_iv (STATX_CTIME)
1377 const_iv (STATX_INO)
1378 const_iv (STATX_SIZE)
1379 const_iv (STATX_BLOCKS)
1380 const_iv (STATX_BASIC_STATS)
1381 const_iv (STATX_ALL)
1382 const_iv (STATX_BTIME)
1383 const_iv (STATX_ATTR_COMPRESSED)
1384 const_iv (STATX_ATTR_IMMUTABLE)
1385 const_iv (STATX_ATTR_APPEND)
1386 const_iv (STATX_ATTR_NODUMP)
1387 const_iv (STATX_ATTR_ENCRYPTED)
1388 const_iv (STATX_ATTR_AUTOMOUNT)
1389
1390 const_iv (AT_FDCWD)
1391 const_iv (AT_SYMLINK_NOFOLLOW)
1392 const_iv (AT_EACCESS)
1393 const_iv (AT_REMOVEDIR)
1394 const_iv (AT_SYMLINK_FOLLOW)
1395 const_iv (AT_NO_AUTOMOUNT)
1396 const_iv (AT_EMPTY_PATH)
1397 const_iv (AT_STATX_SYNC_TYPE)
1398 const_iv (AT_STATX_AS_STAT)
1399 const_iv (AT_STATX_FORCE_SYNC)
1400 const_iv (AT_STATX_DONT_SYNC)
1401 const_iv (AT_RECURSIVE)
1402
1403 const_iv (OPEN_TREE_CLONE)
1404
1405 const_iv (FSOPEN_CLOEXEC)
1406
1407 const_iv (FSPICK_CLOEXEC)
1408 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1409 const_iv (FSPICK_NO_AUTOMOUNT)
1410 const_iv (FSPICK_EMPTY_PATH)
1411
1412 const_iv (MOVE_MOUNT_F_SYMLINKS)
1413 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1414 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1415 const_iv (MOVE_MOUNT_T_SYMLINKS)
1416 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1417 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1418
1419 /* waitid */
1420 const_iv (P_PID)
1421 const_iv (P_PIDFD)
1422 const_iv (P_PGID)
1423 const_iv (P_ALL)
1424
1425 const_iv (FSCONFIG_SET_FLAG)
1426 const_iv (FSCONFIG_SET_STRING)
1427 const_iv (FSCONFIG_SET_BINARY)
1428 const_iv (FSCONFIG_SET_PATH)
1429 const_iv (FSCONFIG_SET_PATH_EMPTY)
1430 const_iv (FSCONFIG_SET_FD)
1431 const_iv (FSCONFIG_CMD_CREATE)
1432 const_iv (FSCONFIG_CMD_RECONFIGURE)
1433
1434 const_iv (MOUNT_ATTR_RDONLY)
1435 const_iv (MOUNT_ATTR_NOSUID)
1436 const_iv (MOUNT_ATTR_NODEV)
1437 const_iv (MOUNT_ATTR_NOEXEC)
1438 const_iv (MOUNT_ATTR__ATIME)
1439 const_iv (MOUNT_ATTR_RELATIME)
1440 const_iv (MOUNT_ATTR_NOATIME)
1441 const_iv (MOUNT_ATTR_STRICTATIME)
1442 const_iv (MOUNT_ATTR_NODIRATIME)
1443
1444 /* sys/mount.h */
1445 const_iv (MS_RDONLY)
1446 const_iv (MS_NOSUID)
1447 const_iv (MS_NODEV)
1448 const_iv (MS_NOEXEC)
1449 const_iv (MS_SYNCHRONOUS)
1450 const_iv (MS_REMOUNT)
1451 const_iv (MS_MANDLOCK)
1452 const_iv (MS_DIRSYNC)
1453 const_iv (MS_NOATIME)
1454 const_iv (MS_NODIRATIME)
1455 const_iv (MS_BIND)
1456 const_iv (MS_MOVE)
1457 const_iv (MS_REC)
1458 const_iv (MS_SILENT)
1459 const_iv (MS_POSIXACL)
1460 const_iv (MS_UNBINDABLE)
1461 const_iv (MS_PRIVATE)
1462 const_iv (MS_SLAVE)
1463 const_iv (MS_SHARED)
1464 const_iv (MS_RELATIME)
1465 const_iv (MS_KERNMOUNT)
1466 const_iv (MS_I_VERSION)
1467 const_iv (MS_STRICTATIME)
1468 const_iv (MS_LAZYTIME)
1469 const_iv (MS_ACTIVE)
1470 const_iv (MS_NOUSER)
1471 const_iv (MS_RMT_MASK)
1472 const_iv (MS_MGC_VAL)
1473 const_iv (MS_MGC_MSK)
1474
1475 const_iv (MNT_FORCE)
1476 const_iv (MNT_DETACH)
1477 const_iv (MNT_EXPIRE)
1478 const_iv (UMOUNT_NOFOLLOW)
1479
1480 const_iv (BLKROSET)
1481 const_iv (BLKROGET)
1482 const_iv (BLKRRPART)
1483 const_iv (BLKGETSIZE)
1484 const_iv (BLKFLSBUF)
1485 const_iv (BLKRASET)
1486 const_iv (BLKRAGET)
1487 const_iv (BLKFRASET)
1488 const_iv (BLKFRAGET)
1489 const_iv (BLKSECTSET)
1490 const_iv (BLKSECTGET)
1491 const_iv (BLKSSZGET)
1492 const_iv (BLKBSZGET)
1493 const_iv (BLKBSZSET)
1494 const_iv (BLKGETSIZE64)
1495
1496 /* these are libeio constants, and are independent of gendef0 */
1497 const_eio (SEEK_SET)
1498 const_eio (SEEK_CUR)
1499 const_eio (SEEK_END)
1500
1501 const_eio (MCL_FUTURE)
1502 const_eio (MCL_CURRENT)
1503 const_eio (MCL_ONFAULT)
1504
1505 const_eio (MS_ASYNC)
1506 const_eio (MS_INVALIDATE)
1507 const_eio (MS_SYNC)
1508
1509 const_eio (MT_MODIFY)
1510
1511 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1512 const_eio (SYNC_FILE_RANGE_WRITE)
1513 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1514
1515 const_eio (FALLOC_FL_KEEP_SIZE)
1516 const_eio (FALLOC_FL_PUNCH_HOLE)
1517 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1518 const_eio (FALLOC_FL_ZERO_RANGE)
1519 const_eio (FALLOC_FL_INSERT_RANGE)
1520 const_eio (FALLOC_FL_UNSHARE_RANGE)
1521
1522 const_eio (RENAME_NOREPLACE)
1523 const_eio (RENAME_EXCHANGE)
1524 const_eio (RENAME_WHITEOUT)
1525
1526 const_eio (READDIR_DENTS)
1527 const_eio (READDIR_DIRS_FIRST)
1528 const_eio (READDIR_STAT_ORDER)
1529 const_eio (READDIR_FOUND_UNKNOWN)
1530
1531 const_eio (DT_UNKNOWN)
1532 const_eio (DT_FIFO)
1533 const_eio (DT_CHR)
1534 const_eio (DT_DIR)
1535 const_eio (DT_BLK)
1536 const_eio (DT_REG)
1537 const_eio (DT_LNK)
1538 const_eio (DT_SOCK)
1539 const_eio (DT_WHT)
1540 };
1541
1542 aio_stash = gv_stashpv ("IO::AIO" , 1);
1543 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1544 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1545 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1546
1547 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1548 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1549
1550 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1551
1552 /* allocate dummy pipe fd for aio_close */
967 { 1553 {
968 off_t sbytes; 1554 int pipefd [2];
969 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
970 1555
971 if (res < 0 && sbytes) 1556 if (
972 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1557#ifdef _WIN32
973 res = sbytes; 1558 _pipe (pipefd, 1, _O_BINARY) < 0
1559#else
1560 pipe (pipefd) < 0
1561 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1562#endif
1563 || close (pipefd [1]) < 0
1564 )
1565 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1566
1567 close_fd = pipefd [0];
974 } 1568 }
975 1569
976# elif __hpux 1570 reinit ();
977 res = sendfile (ofd, ifd, offset, count, 0, 0);
978
979# elif __solaris
980 {
981 struct sendfilevec vec;
982 size_t sbytes;
983
984 vec.sfv_fd = ifd;
985 vec.sfv_flag = 0;
986 vec.sfv_off = offset;
987 vec.sfv_len = count;
988
989 res = sendfilev (ofd, &vec, 1, &sbytes);
990
991 if (res < 0 && sbytes)
992 res = sbytes;
993 }
994
995# endif
996#else
997 res = -1;
998 errno = ENOSYS;
999#endif
1000
1001 if (res < 0
1002 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1003#if __solaris
1004 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1005#endif
1006 )
1007 )
1008 {
1009 /* emulate sendfile. this is a major pain in the ass */
1010 dBUF;
1011
1012 res = 0;
1013
1014 while (count)
1015 {
1016 ssize_t cnt;
1017
1018 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1019
1020 if (cnt <= 0)
1021 {
1022 if (cnt && !res) res = -1;
1023 break;
1024 }
1025
1026 cnt = write (ofd, aio_buf, cnt);
1027
1028 if (cnt <= 0)
1029 {
1030 if (cnt && !res) res = -1;
1031 break;
1032 }
1033
1034 offset += cnt;
1035 res += cnt;
1036 count -= cnt;
1037 }
1038 }
1039
1040 return res;
1041} 1571}
1042 1572
1043/* read a full directory */
1044static void scandir_ (aio_req req, worker *self)
1045{
1046 DIR *dirp;
1047 union
1048 {
1049 struct dirent d;
1050 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1051 } *u;
1052 struct dirent *entp;
1053 char *name, *names;
1054 int memlen = 4096;
1055 int memofs = 0;
1056 int res = 0;
1057 int errorno;
1058
1059 LOCK (wrklock);
1060 self->dirp = dirp = opendir (req->ptr1);
1061 self->dbuf = u = malloc (sizeof (*u));
1062 req->flags |= FLAG_PTR2_FREE;
1063 req->ptr2 = names = malloc (memlen);
1064 UNLOCK (wrklock);
1065
1066 if (dirp && u && names)
1067 for (;;)
1068 {
1069 errno = 0;
1070 readdir_r (dirp, &u->d, &entp);
1071
1072 if (!entp)
1073 break;
1074
1075 name = entp->d_name;
1076
1077 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1078 {
1079 int len = strlen (name) + 1;
1080
1081 res++;
1082
1083 while (memofs + len > memlen)
1084 {
1085 memlen *= 2;
1086 LOCK (wrklock);
1087 req->ptr2 = names = realloc (names, memlen);
1088 UNLOCK (wrklock);
1089
1090 if (!names)
1091 break;
1092 }
1093
1094 memcpy (names + memofs, name, len);
1095 memofs += len;
1096 }
1097 }
1098
1099 if (errno)
1100 res = -1;
1101
1102 req->result = res;
1103}
1104
1105/*****************************************************************************/
1106
1107static void *aio_proc (void *thr_arg)
1108{
1109 aio_req req;
1110 struct timespec ts;
1111 worker *self = (worker *)thr_arg;
1112
1113 /* try to distribute timeouts somewhat evenly */
1114 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1115 * (1000000000UL / 1024UL);
1116
1117 for (;;)
1118 {
1119 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1120
1121 LOCK (reqlock);
1122
1123 for (;;)
1124 {
1125 self->req = req = reqq_shift (&req_queue);
1126
1127 if (req)
1128 break;
1129
1130 ++idle;
1131
1132 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1133 == ETIMEDOUT)
1134 {
1135 if (idle > max_idle)
1136 {
1137 --idle;
1138 UNLOCK (reqlock);
1139 LOCK (wrklock);
1140 --started;
1141 UNLOCK (wrklock);
1142 goto quit;
1143 }
1144
1145 /* we are allowed to idle, so do so without any timeout */
1146 pthread_cond_wait (&reqwait, &reqlock);
1147 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1148 }
1149
1150 --idle;
1151 }
1152
1153 --nready;
1154
1155 UNLOCK (reqlock);
1156
1157 errno = 0; /* strictly unnecessary */
1158
1159 if (!(req->flags & FLAG_CANCELLED))
1160 switch (req->type)
1161 {
1162 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1163 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1164
1165 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1166 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1167
1168 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1169 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1170 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1171
1172 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1173 case REQ_CLOSE: req->result = close (req->int1); break;
1174 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1175 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1176 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1177 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1178 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1179 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1180 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1181
1182 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1183 case REQ_FSYNC: req->result = fsync (req->int1); break;
1184 case REQ_READDIR: scandir_ (req, self); break;
1185
1186 case REQ_BUSY:
1187 {
1188 struct timeval tv;
1189
1190 tv.tv_sec = req->int1;
1191 tv.tv_usec = req->int2;
1192
1193 req->result = select (0, 0, 0, 0, &tv);
1194 }
1195
1196 case REQ_GROUP:
1197 case REQ_NOP:
1198 break;
1199
1200 case REQ_QUIT:
1201 goto quit;
1202
1203 default:
1204 req->result = ENOSYS;
1205 break;
1206 }
1207
1208 req->errorno = errno;
1209
1210 LOCK (reslock);
1211
1212 ++npending;
1213
1214 if (!reqq_push (&res_queue, req))
1215 {
1216 /* write a dummy byte to the pipe so fh becomes ready */
1217 write (respipe [1], &respipe, 1);
1218
1219 /* optionally signal the main thread asynchronously */
1220 if (main_sig)
1221 pthread_kill (main_tid, main_sig);
1222 }
1223
1224 self->req = 0;
1225 worker_clear (self);
1226
1227 UNLOCK (reslock);
1228 }
1229
1230quit:
1231 LOCK (wrklock);
1232 worker_free (self);
1233 UNLOCK (wrklock);
1234
1235 return 0;
1236}
1237
1238/*****************************************************************************/
1239
1240static void atfork_prepare (void)
1241{
1242 LOCK (wrklock);
1243 LOCK (reqlock);
1244 LOCK (reslock);
1245#if !HAVE_PREADWRITE
1246 LOCK (preadwritelock);
1247#endif
1248#if !HAVE_READDIR_R
1249 LOCK (readdirlock);
1250#endif
1251}
1252
1253static void atfork_parent (void)
1254{
1255#if !HAVE_READDIR_R
1256 UNLOCK (readdirlock);
1257#endif
1258#if !HAVE_PREADWRITE
1259 UNLOCK (preadwritelock);
1260#endif
1261 UNLOCK (reslock);
1262 UNLOCK (reqlock);
1263 UNLOCK (wrklock);
1264}
1265
1266static void atfork_child (void)
1267{
1268 aio_req prv;
1269
1270 while (prv = reqq_shift (&req_queue))
1271 req_free (prv);
1272
1273 while (prv = reqq_shift (&res_queue))
1274 req_free (prv);
1275
1276 while (wrk_first.next != &wrk_first)
1277 {
1278 worker *wrk = wrk_first.next;
1279
1280 if (wrk->req)
1281 req_free (wrk->req);
1282
1283 worker_clear (wrk);
1284 worker_free (wrk);
1285 }
1286
1287 started = 0;
1288 idle = 0;
1289 nreqs = 0;
1290 nready = 0;
1291 npending = 0;
1292
1293 close (respipe [0]);
1294 close (respipe [1]);
1295 create_pipe ();
1296
1297 atfork_parent ();
1298}
1299
1300#define dREQ \
1301 aio_req req; \
1302 int req_pri = next_pri; \
1303 next_pri = DEFAULT_PRI + PRI_BIAS; \
1304 \
1305 if (SvOK (callback) && !SvROK (callback)) \
1306 croak ("callback must be undef or of reference type"); \
1307 \
1308 Newz (0, req, 1, aio_cb); \
1309 if (!req) \
1310 croak ("out of memory during aio_req allocation"); \
1311 \
1312 req->callback = newSVsv (callback); \
1313 req->pri = req_pri
1314
1315#define REQ_SEND \
1316 req_send (req); \
1317 \
1318 if (GIMME_V != G_VOID) \
1319 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1320
1321MODULE = IO::AIO PACKAGE = IO::AIO
1322
1323PROTOTYPES: ENABLE
1324
1325BOOT:
1326{
1327 HV *stash = gv_stashpv ("IO::AIO", 1);
1328
1329 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1330 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1331 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1332 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1333 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1334 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1335 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1336
1337 create_pipe ();
1338 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1339}
1340
1341void 1573void
1574reinit ()
1575 PROTOTYPE:
1576
1577void
1342max_poll_reqs (int nreqs) 1578max_poll_reqs (unsigned int nreqs)
1343 PROTOTYPE: $ 1579 PROTOTYPE: $
1344 CODE: 1580 CODE:
1345 max_poll_reqs = nreqs; 1581 eio_set_max_poll_reqs (nreqs);
1346 1582
1347void 1583void
1348max_poll_time (double nseconds) 1584max_poll_time (double nseconds)
1349 PROTOTYPE: $ 1585 PROTOTYPE: $
1350 CODE: 1586 CODE:
1351 max_poll_time = nseconds * AIO_TICKS; 1587 eio_set_max_poll_time (nseconds);
1352 1588
1353void 1589void
1354min_parallel (int nthreads) 1590min_parallel (unsigned int nthreads)
1355 PROTOTYPE: $
1356
1357void
1358max_parallel (int nthreads)
1359 PROTOTYPE: $
1360
1361void
1362max_idle (int nthreads)
1363 PROTOTYPE: $ 1591 PROTOTYPE: $
1364 CODE: 1592 CODE:
1365 set_max_idle (nthreads); 1593 eio_set_min_parallel (nthreads);
1366 1594
1367int 1595void
1368max_outstanding (int maxreqs) 1596max_parallel (unsigned int nthreads)
1369 PROTOTYPE: $ 1597 PROTOTYPE: $
1370 CODE: 1598 CODE:
1371 RETVAL = max_outstanding; 1599 eio_set_max_parallel (nthreads);
1600
1601void
1602max_idle (unsigned int nthreads)
1603 PROTOTYPE: $
1604 CODE:
1605 eio_set_max_idle (nthreads);
1606
1607void
1608idle_timeout (unsigned int seconds)
1609 PROTOTYPE: $
1610 CODE:
1611 eio_set_idle_timeout (seconds);
1612
1613void
1614max_outstanding (unsigned int maxreqs)
1615 PROTOTYPE: $
1616 CODE:
1372 max_outstanding = maxreqs; 1617 max_outstanding = maxreqs;
1373 OUTPUT:
1374 RETVAL
1375 1618
1376void 1619void
1377aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1620aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1378 SV8 * pathname
1379 int flags
1380 int mode
1381 SV * callback
1382 PROTOTYPE: $$$;$
1383 PPCODE: 1621 PPCODE:
1384{ 1622{
1385 dREQ; 1623 dREQ;
1386 1624
1625 req->type = EIO_WD_OPEN;
1626 req_set_path1 (req, pathname);
1627
1628 REQ_SEND;
1629}
1630
1631void
1632aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1633 PPCODE:
1634{
1635 dREQ;
1636
1387 req->type = REQ_OPEN; 1637 req->type = EIO_OPEN;
1388 req->sv1 = newSVsv (pathname); 1638 req_set_path1 (req, pathname);
1389 req->ptr1 = SvPVbyte_nolen (req->sv1);
1390 req->int1 = flags; 1639 req->int1 = flags;
1391 req->mode = mode; 1640 req->int2 = mode;
1392 1641
1393 REQ_SEND; 1642 REQ_SEND;
1394} 1643}
1395 1644
1396void 1645void
1397aio_close (fh,callback=&PL_sv_undef) 1646aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1398 SV * fh
1399 SV * callback
1400 PROTOTYPE: $;$
1401 ALIAS: 1647 ALIAS:
1402 aio_close = REQ_CLOSE
1403 aio_fsync = REQ_FSYNC 1648 aio_fsync = EIO_FSYNC
1404 aio_fdatasync = REQ_FDATASYNC 1649 aio_fdatasync = EIO_FDATASYNC
1650 aio_syncfs = EIO_SYNCFS
1405 PPCODE: 1651 PPCODE:
1406{ 1652{
1653 int fd = s_fileno_croak (fh, 0);
1407 dREQ; 1654 dREQ;
1408 1655
1409 req->type = ix; 1656 req->type = ix;
1410 req->fh = newSVsv (fh); 1657 req->sv1 = newSVsv (fh);
1411 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1658 req->int1 = fd;
1412 1659
1413 REQ_SEND (req); 1660 REQ_SEND;
1414} 1661}
1415 1662
1416void 1663void
1664aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1665 PPCODE:
1666{
1667 int fd = s_fileno_croak (fh, 0);
1668 dREQ;
1669
1670 req->type = EIO_SYNC_FILE_RANGE;
1671 req->sv1 = newSVsv (fh);
1672 req->int1 = fd;
1673 req->offs = offset;
1674 req->size = nbytes;
1675 req->int2 = flags;
1676
1677 REQ_SEND;
1678}
1679
1680void
1681aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1682 PPCODE:
1683{
1684 int fd = s_fileno_croak (fh, 0);
1685 dREQ;
1686
1687 req->type = EIO_FALLOCATE;
1688 req->sv1 = newSVsv (fh);
1689 req->int1 = fd;
1690 req->int2 = mode;
1691 req->offs = offset;
1692 req->size = len;
1693
1694 REQ_SEND;
1695}
1696
1697void
1698aio_close (SV *fh, SV *callback = &PL_sv_undef)
1699 PPCODE:
1700{
1701 int fd = s_fileno_croak (fh, 0);
1702 dREQ;
1703#if 0
1704 /* partially duplicate logic in s_fileno */
1705 SvGETMAGIC (fh);
1706
1707 if (SvROK (fh))
1708 {
1709 fh = SvRV (fh);
1710 SvGETMAGIC (fh);
1711 }
1712
1713 if (SvTYPE (fh) == SVt_PVGV)
1714 {
1715 /* perl filehandle */
1716 PerlIOUnix_refcnt_inc (fd);
1717 do_close ((GV *)fh, 1);
1718
1719 req->type = EIO_CLOSE;
1720 req->int1 = fd;
1721 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1722 }
1723 else
1724#endif
1725 {
1726 /* fd number */
1727 req->type = EIO_DUP2;
1728 req->int1 = close_fd;
1729 req->sv2 = newSVsv (fh);
1730 req->int2 = fd;
1731 }
1732
1733 REQ_SEND;
1734}
1735
1736void
1737aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1738 PPCODE:
1739{
1740 int fd = s_fileno_croak (fh, 0);
1741 dREQ;
1742
1743 req->type = EIO_SEEK;
1744 req->sv1 = newSVsv (fh);
1745 req->int1 = fd;
1746 req->offs = SvVAL64 (offset);
1747 req->int2 = whence;
1748
1749 REQ_SEND;
1750}
1751
1752void
1417aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1753aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1418 SV * fh
1419 UV offset
1420 UV length
1421 SV8 * data
1422 UV dataoffset
1423 SV * callback
1424 ALIAS: 1754 ALIAS:
1425 aio_read = REQ_READ 1755 aio_read = EIO_READ
1426 aio_write = REQ_WRITE 1756 aio_write = EIO_WRITE
1427 PROTOTYPE: $$$$$;$
1428 PPCODE: 1757 PPCODE:
1429{ 1758{
1430 STRLEN svlen; 1759 STRLEN svlen;
1760 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1431 char *svptr = SvPVbyte (data, svlen); 1761 char *svptr = SvPVbyte (data, svlen);
1432 1762 UV len = SvUV (length);
1433 SvUPGRADE (data, SVt_PV);
1434 SvPOK_on (data);
1435 1763
1436 if (dataoffset < 0) 1764 if (dataoffset < 0)
1437 dataoffset += svlen; 1765 dataoffset += svlen;
1438 1766
1439 if (dataoffset < 0 || dataoffset > svlen) 1767 if (dataoffset < 0 || dataoffset > svlen)
1440 croak ("data offset outside of string"); 1768 croak ("dataoffset outside of data scalar");
1441 1769
1442 if (ix == REQ_WRITE) 1770 if (ix == EIO_WRITE)
1443 { 1771 {
1444 /* write: check length and adjust. */ 1772 /* write: check length and adjust. */
1445 if (length < 0 || length + dataoffset > svlen) 1773 if (!SvOK (length) || len + dataoffset > svlen)
1446 length = svlen - dataoffset; 1774 len = svlen - dataoffset;
1447 } 1775 }
1448 else 1776 else
1449 { 1777 {
1450 /* read: grow scalar as necessary */ 1778 /* read: check type and grow scalar as necessary */
1779 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1451 svptr = SvGROW (data, length + dataoffset + 1); 1780 svptr = sv_grow (data, len + dataoffset + 1);
1781 else if (SvCUR (data) < len + dataoffset)
1782 croak ("length + dataoffset outside of scalar, and cannot grow");
1452 } 1783 }
1453
1454 if (length < 0)
1455 croak ("length must not be negative");
1456 1784
1457 { 1785 {
1458 dREQ; 1786 dREQ;
1459 1787
1460 req->type = ix; 1788 req->type = ix;
1461 req->fh = newSVsv (fh); 1789 req->sv1 = newSVsv (fh);
1462 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1790 req->int1 = fd;
1463 : IoOFP (sv_2io (fh))); 1791 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1464 req->offs = offset;
1465 req->size = length; 1792 req->size = len;
1466 req->sv1 = SvREFCNT_inc (data); 1793 req->sv2 = SvREFCNT_inc (data);
1467 req->ptr1 = (char *)svptr + dataoffset; 1794 req->ptr2 = (char *)svptr + dataoffset;
1468 req->stroffset = dataoffset; 1795 req->stroffset = dataoffset;
1469 1796
1470 if (!SvREADONLY (data)) 1797 if (!SvREADONLY (data))
1471 { 1798 {
1472 SvREADONLY_on (data); 1799 SvREADONLY_on (data);
1473 req->flags |= FLAG_SV1_RO_OFF; 1800 req->flags |= FLAG_SV2_RO_OFF;
1474 } 1801 }
1475 1802
1476 REQ_SEND; 1803 REQ_SEND;
1477 } 1804 }
1478} 1805}
1479 1806
1480void 1807void
1481aio_readlink (path,callback=&PL_sv_undef) 1808aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1482 SV8 * path 1809 ALIAS:
1483 SV * callback 1810 aio_ioctl = EIO_IOCTL
1484 PROTOTYPE: $$;$ 1811 aio_fcntl = EIO_FCNTL
1485 PPCODE: 1812 PPCODE:
1486{ 1813{
1487 SV *data; 1814 int fd = s_fileno_croak (fh, 0);
1815 char *svptr;
1816
1817 if (SvPOK (arg) || !SvNIOK (arg))
1818 {
1819 STRLEN svlen;
1820 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1821#ifdef IOCPARM_LEN
1822 STRLEN need = IOCPARM_LEN (request);
1823#else
1824 STRLEN need = 256;
1825#endif
1826
1827 if (svlen < need)
1828 svptr = SvGROW (arg, need);
1829 }
1830 else
1831 svptr = (char *)SvIV (arg);
1832
1833 {
1834 dREQ;
1835
1836 req->type = ix;
1837 req->sv1 = newSVsv (fh);
1838 req->int1 = fd;
1839 req->int2 = (long)request;
1840 req->sv2 = SvREFCNT_inc (arg);
1841 req->ptr2 = svptr;
1842
1843 REQ_SEND;
1844 }
1845}
1846
1847void
1848aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1849 ALIAS:
1850 aio_readlink = EIO_READLINK
1851 aio_realpath = EIO_REALPATH
1852 PPCODE:
1853{
1488 dREQ; 1854 dREQ;
1489 1855
1490 data = newSV (NAME_MAX);
1491 SvPOK_on (data);
1492
1493 req->type = REQ_READLINK; 1856 req->type = ix;
1494 req->fh = newSVsv (path); 1857 req_set_path1 (req, pathname);
1495 req->ptr2 = SvPVbyte_nolen (req->fh);
1496 req->sv1 = data;
1497 req->ptr1 = SvPVbyte_nolen (data);
1498 1858
1499 REQ_SEND; 1859 REQ_SEND;
1500} 1860}
1501 1861
1502void 1862void
1503aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1863aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1504 SV * out_fh
1505 SV * in_fh
1506 UV in_offset
1507 UV length
1508 SV * callback
1509 PROTOTYPE: $$$$;$
1510 PPCODE: 1864 PPCODE:
1511{ 1865{
1866 int ifd = s_fileno_croak (in_fh , 0);
1867 int ofd = s_fileno_croak (out_fh, 1);
1512 dREQ; 1868 dREQ;
1513 1869
1514 req->type = REQ_SENDFILE; 1870 req->type = EIO_SENDFILE;
1515 req->fh = newSVsv (out_fh); 1871 req->sv1 = newSVsv (out_fh);
1516 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1872 req->int1 = ofd;
1517 req->sv2 = newSVsv (in_fh); 1873 req->sv2 = newSVsv (in_fh);
1518 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1874 req->int2 = ifd;
1519 req->offs = in_offset; 1875 req->offs = in_offset;
1520 req->size = length; 1876 req->size = length;
1521 1877
1522 REQ_SEND; 1878 REQ_SEND;
1523} 1879}
1524 1880
1525void 1881void
1526aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1882aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1527 SV * fh
1528 UV offset
1529 IV length
1530 SV * callback
1531 PROTOTYPE: $$$;$
1532 PPCODE: 1883 PPCODE:
1533{ 1884{
1885 int fd = s_fileno_croak (fh, 0);
1534 dREQ; 1886 dREQ;
1535 1887
1536 req->type = REQ_READAHEAD; 1888 req->type = EIO_READAHEAD;
1537 req->fh = newSVsv (fh); 1889 req->sv1 = newSVsv (fh);
1538 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1890 req->int1 = fd;
1539 req->offs = offset; 1891 req->offs = offset;
1540 req->size = length; 1892 req->size = length;
1541 1893
1542 REQ_SEND; 1894 REQ_SEND;
1543} 1895}
1544 1896
1545void 1897void
1546aio_stat (fh_or_path,callback=&PL_sv_undef) 1898aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1547 SV8 * fh_or_path
1548 SV * callback
1549 ALIAS: 1899 ALIAS:
1550 aio_stat = REQ_STAT 1900 aio_stat = EIO_STAT
1551 aio_lstat = REQ_LSTAT 1901 aio_lstat = EIO_LSTAT
1902 aio_statvfs = EIO_STATVFS
1552 PPCODE: 1903 PPCODE:
1553{ 1904{
1554 dREQ; 1905 dREQ;
1555 1906
1556 req->ptr2 = malloc (sizeof (Stat_t)); 1907 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1557 if (!req->ptr2)
1558 {
1559 req_free (req);
1560 croak ("out of memory during aio_stat statdata allocation");
1561 }
1562
1563 req->flags |= FLAG_PTR2_FREE;
1564
1565 if (SvPOK (fh_or_path))
1566 {
1567 req->type = ix;
1568 req->sv1 = newSVsv (fh_or_path);
1569 req->ptr1 = SvPVbyte_nolen (req->sv1);
1570 }
1571 else
1572 {
1573 req->type = REQ_FSTAT;
1574 req->fh = newSVsv (fh_or_path);
1575 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1576 }
1577 1908
1578 REQ_SEND; 1909 REQ_SEND;
1579} 1910}
1580 1911
1581void 1912void
1913st_xtime ()
1914 ALIAS:
1915 st_atime = 0x01
1916 st_mtime = 0x02
1917 st_ctime = 0x04
1918 st_btime = 0x08
1919 st_xtime = 0x0f
1920 PPCODE:
1921 EXTEND (SP, 4);
1922 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1923 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1924 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1925 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1926
1927void
1928st_xtimensec ()
1929 ALIAS:
1930 st_atimensec = 0x01
1931 st_mtimensec = 0x02
1932 st_ctimensec = 0x04
1933 st_btimensec = 0x08
1934 st_xtimensec = 0x0f
1935 st_btimesec = 0x10
1936 st_gen = 0x20
1937 PPCODE:
1938 EXTEND (SP, 4);
1939 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1940 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1941 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1942 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1943 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1944 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1945
1946UV
1947major (UV dev)
1948 ALIAS:
1949 minor = 1
1950 CODE:
1951 RETVAL = ix ? minor (dev) : major (dev);
1952 OUTPUT:
1953 RETVAL
1954
1955UV
1956makedev (UV maj, UV min)
1957 CODE:
1958 RETVAL = makedev (maj, min);
1959 OUTPUT:
1960 RETVAL
1961
1962void
1963aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1964 PPCODE:
1965{
1966 dREQ;
1967
1968 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1969 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1970 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1971
1972 REQ_SEND;
1973}
1974
1975void
1976aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1977 PPCODE:
1978{
1979 dREQ;
1980
1981 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1982 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1983
1984 REQ_SEND;
1985}
1986
1987void
1988aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1989 PPCODE:
1990{
1991 dREQ;
1992
1993 req->int2 = mode;
1994 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1995
1996 REQ_SEND;
1997}
1998
1999void
2000aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
2001 PPCODE:
2002{
2003 dREQ;
2004
2005 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
2006 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
2007 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
2008
2009 REQ_SEND;
2010}
2011
2012void
2013aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
2014 PPCODE:
2015{
2016 dREQ;
2017
2018 req->type = EIO_READDIR;
2019 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
2020
2021 if (flags & EIO_READDIR_DENTS)
2022 req->int1 |= EIO_READDIR_CUSTOM2;
2023
2024 req_set_path1 (req, pathname);
2025
2026 REQ_SEND;
2027}
2028
2029void
2030aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
2031 PPCODE:
2032{
2033 dREQ;
2034
2035 req->type = EIO_MKDIR;
2036 req->int2 = mode;
2037 req_set_path1 (req, pathname);
2038
2039 REQ_SEND;
2040}
2041
2042void
1582aio_unlink (pathname,callback=&PL_sv_undef) 2043aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1583 SV8 * pathname
1584 SV * callback
1585 ALIAS: 2044 ALIAS:
1586 aio_unlink = REQ_UNLINK 2045 aio_unlink = EIO_UNLINK
1587 aio_rmdir = REQ_RMDIR 2046 aio_rmdir = EIO_RMDIR
1588 aio_readdir = REQ_READDIR 2047 aio_readdir = EIO_READDIR
1589 PPCODE: 2048 PPCODE:
1590{ 2049{
1591 dREQ; 2050 dREQ;
1592 2051
1593 req->type = ix; 2052 req->type = ix;
1594 req->sv1 = newSVsv (pathname); 2053 req_set_path1 (req, pathname);
1595 req->ptr1 = SvPVbyte_nolen (req->sv1);
1596 2054
1597 REQ_SEND; 2055 REQ_SEND;
1598} 2056}
1599 2057
1600void 2058void
1601aio_link (oldpath,newpath,callback=&PL_sv_undef) 2059aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1602 SV8 * oldpath
1603 SV8 * newpath
1604 SV * callback
1605 ALIAS: 2060 ALIAS:
1606 aio_link = REQ_LINK 2061 aio_link = EIO_LINK
1607 aio_symlink = REQ_SYMLINK 2062 aio_symlink = EIO_SYMLINK
1608 aio_rename = REQ_RENAME 2063 aio_rename = EIO_RENAME
1609 PPCODE: 2064 PPCODE:
1610{ 2065{
2066 eio_wd wd2 = 0;
1611 dREQ; 2067 dREQ;
1612 2068
1613 req->type = ix; 2069 req->type = ix;
1614 req->fh = newSVsv (oldpath); 2070 req_set_path1 (req, oldpath);
1615 req->ptr2 = SvPVbyte_nolen (req->fh); 2071 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1616 req->sv1 = newSVsv (newpath); 2072 req->int3 = (long)wd2;
1617 req->ptr1 = SvPVbyte_nolen (req->sv1);
1618 2073
1619 REQ_SEND; 2074 REQ_SEND;
1620} 2075}
1621 2076
1622void 2077void
1623aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 2078aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1624 SV8 * pathname
1625 SV * callback
1626 UV mode
1627 UV dev
1628 PPCODE: 2079 PPCODE:
1629{ 2080{
2081 eio_wd wd2 = 0;
1630 dREQ; 2082 dREQ;
1631 2083
1632 req->type = REQ_MKNOD; 2084 req->type = EIO_RENAME;
1633 req->sv1 = newSVsv (pathname); 2085 req_set_path1 (req, oldpath);
1634 req->ptr1 = SvPVbyte_nolen (req->sv1); 2086 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1635 req->mode = (mode_t)mode; 2087 req->int2 = flags;
1636 req->offs = dev; 2088 req->int3 = (long)wd2;
1637 2089
1638 REQ_SEND; 2090 REQ_SEND;
1639} 2091}
1640 2092
1641void 2093void
1642aio_busy (delay,callback=&PL_sv_undef) 2094aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1643 double delay
1644 SV * callback
1645 PPCODE: 2095 PPCODE:
1646{ 2096{
1647 dREQ; 2097 dREQ;
1648 2098
1649 req->type = REQ_BUSY; 2099 req->type = EIO_MKNOD;
1650 req->int1 = delay < 0. ? 0 : delay; 2100 req->int2 = (mode_t)mode;
1651 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 2101 req->offs = dev;
1652 2102 req_set_path1 (req, pathname);
2103
1653 REQ_SEND; 2104 REQ_SEND;
1654} 2105}
1655 2106
1656void 2107void
1657aio_group (callback=&PL_sv_undef) 2108aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1658 SV * callback 2109 ALIAS:
1659 PROTOTYPE: ;$ 2110 aio_mtouch = EIO_MTOUCH
2111 aio_msync = EIO_MSYNC
1660 PPCODE: 2112 PPCODE:
1661{ 2113{
2114 STRLEN svlen;
2115 char *svptr = SvPVbyte (data, svlen);
2116 UV len = SvUV (length);
2117
2118 if (flags < 0)
2119 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2120
2121 if (offset < 0)
2122 offset += svlen;
2123
2124 if (offset < 0 || offset > svlen)
2125 croak ("offset outside of scalar");
2126
2127 if (!SvOK (length) || len + offset > svlen)
2128 len = svlen - offset;
2129
2130 {
2131 dREQ;
2132
2133 req->type = ix;
2134 req->sv2 = SvREFCNT_inc (data);
2135 req->ptr2 = (char *)svptr + offset;
2136 req->size = len;
2137 req->int1 = flags;
2138
2139 REQ_SEND;
2140 }
2141}
2142
2143void
2144aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2145 PPCODE:
2146{
2147 STRLEN svlen;
2148 char *svptr = SvPVbyte (data, svlen);
2149 UV len = SvUV (length);
2150
2151 if (offset < 0)
2152 offset += svlen;
2153
2154 if (offset < 0 || offset > svlen)
2155 croak ("offset outside of scalar");
2156
2157 if (!SvOK (length) || len + offset > svlen)
2158 len = svlen - offset;
2159
2160 {
2161 dREQ;
2162
2163 req->type = EIO_MLOCK;
2164 req->sv2 = SvREFCNT_inc (data);
2165 req->ptr2 = (char *)svptr + offset;
2166 req->size = len;
2167
2168 REQ_SEND;
2169 }
2170}
2171
2172void
2173aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2174 PPCODE:
2175{
2176 dREQ;
2177
2178 req->type = EIO_MLOCKALL;
2179 req->int1 = flags;
2180
2181 REQ_SEND;
2182}
2183
2184void
2185aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2186 PPCODE:
2187{
2188 int fd = s_fileno_croak (fh, 0);
1662 dREQ; 2189 dREQ;
1663 2190
1664 req->type = REQ_GROUP; 2191 req->type = EIO_CUSTOM;
2192 req->sv1 = newSVsv (fh);
2193 req->int1 = fd;
1665 2194
1666 req_send (req); 2195 req->feed = fiemap;
1667 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2196#if HAVE_FIEMAP
1668} 2197 /* keep our fingers crossed that the next two types are 64 bit */
2198 req->offs = start;
2199 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2200 req->int2 = flags;
2201 req->int3 = SvOK (count) ? SvIV (count) : -1;
2202#endif
1669 2203
2204 REQ_SEND;
2205}
2206
1670void 2207void
1671aio_nop (callback=&PL_sv_undef) 2208aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1672 SV * callback 2209 PPCODE:
2210{
2211 char *svptr = 0;
2212
2213 sv_clear_foreign (data);
2214
2215 if (length) /* known length, directly read into scalar */
2216 {
2217 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2218 svptr = sv_grow (data, length + 1);
2219 else if (SvCUR (data) < length)
2220 croak ("length outside of scalar, and cannot grow");
2221 else
2222 svptr = SvPVbyte_nolen (data);
2223 }
2224
2225 {
2226 dREQ;
2227
2228 req->type = EIO_SLURP;
2229 req_set_path1 (req, pathname);
2230 req->offs = offset;
2231 req->size = length;
2232 req->sv2 = SvREFCNT_inc (data);
2233 req->ptr2 = svptr;
2234
2235 if (!SvREADONLY (data))
2236 {
2237 SvREADONLY_on (data);
2238 req->flags |= FLAG_SV2_RO_OFF;
2239 }
2240
2241 REQ_SEND;
2242 }
2243}
2244
2245void
2246aio_busy (double delay, SV *callback = &PL_sv_undef)
1673 PPCODE: 2247 PPCODE:
1674{ 2248{
1675 dREQ; 2249 dREQ;
1676 2250
1677 req->type = REQ_NOP; 2251 req->type = EIO_BUSY;
2252 req->nv1 = delay < 0. ? 0. : delay;
1678 2253
1679 REQ_SEND; 2254 REQ_SEND;
1680} 2255}
1681 2256
2257void
2258aio_group (SV *callback = &PL_sv_undef)
2259 PPCODE:
2260{
2261 dREQ;
2262
2263 req->type = EIO_GROUP;
2264
2265 PUTBACK;
2266 req_submit (req);
2267 SPAGAIN;
2268
2269 XPUSHs (req_sv (req, aio_grp_stash));
2270}
2271
2272void
2273aio_nop (SV *callback = &PL_sv_undef)
2274 ALIAS:
2275 aio_nop = EIO_NOP
2276 aio_sync = EIO_SYNC
2277 PPCODE:
2278{
2279 dREQ;
2280
2281 req->type = ix;
2282
2283 REQ_SEND;
2284}
2285
1682int 2286int
1683aioreq_pri (int pri = 0) 2287aioreq_pri (int pri = NO_INIT)
1684 PROTOTYPE: ;$
1685 CODE: 2288 CODE:
1686 RETVAL = next_pri - PRI_BIAS; 2289 RETVAL = next_pri;
1687 if (items > 0) 2290 if (items > 0)
1688 { 2291 {
1689 if (pri < PRI_MIN) pri = PRI_MIN; 2292 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1690 if (pri > PRI_MAX) pri = PRI_MAX; 2293 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1691 next_pri = pri + PRI_BIAS; 2294 next_pri = pri;
1692 } 2295 }
1693 OUTPUT: 2296 OUTPUT:
1694 RETVAL 2297 RETVAL
1695 2298
1696void 2299void
1697aioreq_nice (int nice = 0) 2300aioreq_nice (int nice = 0)
1698 CODE: 2301 CODE:
1699 nice = next_pri - nice; 2302 nice = next_pri - nice;
1700 if (nice < PRI_MIN) nice = PRI_MIN; 2303 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1701 if (nice > PRI_MAX) nice = PRI_MAX; 2304 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1702 next_pri = nice + PRI_BIAS; 2305 next_pri = nice;
1703 2306
1704void 2307void
1705flush () 2308flush ()
1706 PROTOTYPE:
1707 CODE: 2309 CODE:
1708 while (nreqs) 2310 while (eio_nreqs ())
1709 { 2311 {
1710 poll_wait (); 2312 poll_wait ();
1711 poll_cb (); 2313 poll_cb ();
1712 } 2314 }
1713 2315
1714int 2316int
1715poll() 2317poll ()
1716 PROTOTYPE:
1717 CODE: 2318 CODE:
1718 poll_wait (); 2319 poll_wait ();
1719 RETVAL = poll_cb (); 2320 RETVAL = poll_cb ();
1720 OUTPUT: 2321 OUTPUT:
1721 RETVAL 2322 RETVAL
1722 2323
1723int 2324int
1724poll_fileno() 2325poll_fileno ()
1725 PROTOTYPE:
1726 CODE: 2326 CODE:
1727 RETVAL = respipe [0]; 2327 RETVAL = s_epipe_fd (&respipe);
1728 OUTPUT: 2328 OUTPUT:
1729 RETVAL 2329 RETVAL
1730 2330
1731int 2331int
1732poll_cb(...) 2332poll_cb (...)
1733 PROTOTYPE: 2333 PROTOTYPE:
1734 CODE: 2334 CODE:
1735 RETVAL = poll_cb (); 2335 RETVAL = poll_cb ();
1736 OUTPUT: 2336 OUTPUT:
1737 RETVAL 2337 RETVAL
1738 2338
1739void 2339void
1740poll_wait() 2340poll_wait ()
2341 CODE:
2342 poll_wait ();
2343
2344int
2345nreqs ()
2346 CODE:
2347 RETVAL = eio_nreqs ();
2348 OUTPUT:
2349 RETVAL
2350
2351int
2352nready ()
2353 CODE:
2354 RETVAL = eio_nready ();
2355 OUTPUT:
2356 RETVAL
2357
2358int
2359npending ()
2360 CODE:
2361 RETVAL = eio_npending ();
2362 OUTPUT:
2363 RETVAL
2364
2365int
2366nthreads ()
2367 CODE:
2368 RETVAL = eio_nthreads ();
2369 OUTPUT:
2370 RETVAL
2371
2372int
2373fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2374 CODE:
2375 RETVAL = posix_fadvise (fh, offset, length, advice);
2376 OUTPUT:
2377 RETVAL
2378
2379IV
2380sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2381 CODE:
2382 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2383 OUTPUT:
2384 RETVAL
2385
2386void
2387mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2388 PPCODE:
2389 sv_clear_foreign (scalar);
2390{
2391 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2392 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2393 if (addr == (void *)-1)
2394 XSRETURN_NO;
2395
2396 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2397
2398 if (!(prot & PROT_WRITE))
2399 SvREADONLY_on (scalar);
2400
2401 XSRETURN_YES;
2402}
2403
2404void
2405munmap (SV *scalar)
2406 CODE:
2407 sv_clear_foreign (scalar);
2408
2409SV *
2410mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2411 CODE:
2412{
2413 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2414 void *new;
2415
2416 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2417 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2418
2419 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2420
2421 RETVAL = &PL_sv_no;
2422
2423 if (new != (void *)-1)
2424 {
2425 RETVAL = new == (void *)mg->mg_ptr
2426 ? newSVpvn ("0 but true", 10)
2427 : &PL_sv_yes;
2428
2429 mg->mg_ptr = (char *)new;
2430 mg->mg_obj = (SV *)new_length;
2431
2432 SvPVX (scalar) = mg->mg_ptr;
2433 SvCUR_set (scalar, new_length);
2434 }
2435}
2436 OUTPUT:
2437 RETVAL
2438
2439int
2440madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2441 ALIAS:
2442 mprotect = 1
2443 CODE:
2444{
2445 STRLEN svlen;
2446 void *addr = SvPVbyte (scalar, svlen);
2447 STRLEN len = SvUV (length);
2448
2449 if (offset < 0)
2450 offset += svlen;
2451
2452 if (offset < 0 || offset > svlen)
2453 croak ("offset outside of scalar");
2454
2455 if (!SvOK (length) || len + offset > svlen)
2456 len = svlen - offset;
2457
2458 addr = (void *)(((intptr_t)addr) + offset);
2459 eio_page_align (&addr, &len);
2460
2461 switch (ix)
2462 {
2463 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2464 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2465 }
2466}
2467 OUTPUT:
2468 RETVAL
2469
2470int
2471munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2472 CODE:
2473{
2474 STRLEN svlen;
2475 void *addr = SvPVbyte (scalar, svlen);
2476 size_t len = SvUV (length);
2477
2478 if (offset < 0)
2479 offset += svlen;
2480
2481 if (offset < 0 || offset > svlen)
2482 croak ("offset outside of scalar");
2483
2484 if (!SvOK (length) || len + offset > svlen)
2485 len = svlen - offset;
2486
2487 addr = (void *)(((intptr_t)addr) + offset);
2488 eio_page_align (&addr, &len);
2489#if _POSIX_MEMLOCK_RANGE
2490 RETVAL = munlock (addr, len);
2491#else
2492 RETVAL = EIO_ENOSYS ();
2493#endif
2494}
2495 OUTPUT:
2496 RETVAL
2497
2498int
2499mlockall (int flags)
2500 PROTOTYPE: $;
2501 CODE:
2502 RETVAL = eio_mlockall_sync (flags);
2503 OUTPUT:
2504 RETVAL
2505
2506int
2507munlockall ()
2508 CODE:
2509#if _POSIX_MEMLOCK
2510 munlockall ();
2511#else
2512 RETVAL = EIO_ENOSYS ();
2513#endif
2514 OUTPUT:
2515 RETVAL
2516
2517int
2518statx (SV8 *pathname, int flags, UV mask)
2519 CODE:
2520{
2521 /* undocumented, and might go away, and anyway, should use eio_statx */
2522 SV *wdsv = 0;
2523 SV *pathsv = 0;
2524 eio_wd wd = EIO_CWD;
2525 void *ptr;
2526 int res;
2527
2528 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2529 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2530
2531 SvREFCNT_dec (pathsv);
2532 SvREFCNT_dec (wdsv);
2533}
2534 OUTPUT:
2535 RETVAL
2536
2537U32
2538stx_mode ()
1741 PROTOTYPE: 2539 PROTOTYPE:
1742 CODE: 2540 CODE:
1743 poll_wait (); 2541#if HAVE_STATX
2542 RETVAL = stx.stx_mode;
2543#else
2544 XSRETURN_UNDEF;
2545#endif
2546 OUTPUT:
2547 RETVAL
1744 2548
2549#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2550#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2551#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2552#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2553#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2554#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2555#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2556#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2557#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2558#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2559#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2560#define STATX_OFFSET_size statx_offsetof (stx_size)
2561#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2562#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2563#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2564#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2565#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2566#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2567
2568U32
2569stx_mask ()
2570 PROTOTYPE:
2571 ALIAS:
2572 stx_mask = STATX_OFFSET_mask
2573 stx_blksize = STATX_OFFSET_blksize
2574 stx_nlink = STATX_OFFSET_nlink
2575 stx_uid = STATX_OFFSET_uid
2576 stx_gid = STATX_OFFSET_gid
2577 stx_rdev_major = STATX_OFFSET_rdev_major
2578 stx_rdev_minor = STATX_OFFSET_rdev_minor
2579 stx_dev_major = STATX_OFFSET_dev_major
2580 stx_dev_minor = STATX_OFFSET_dev_minor
2581 CODE:
2582#if HAVE_STATX
2583 RETVAL = *(__u32 *)((char *)&stx + ix);
2584#else
2585 XSRETURN_UNDEF;
2586#endif
2587 OUTPUT:
2588 RETVAL
2589
2590VAL64
2591stx_attributes ()
2592 PROTOTYPE:
2593 ALIAS:
2594 stx_attributes = STATX_OFFSET_attributes
2595 stx_ino = STATX_OFFSET_ino
2596 stx_size = STATX_OFFSET_size
2597 stx_blocks = STATX_OFFSET_blocks
2598 stx_attributes_mask = STATX_OFFSET_attributes_mask
2599 CODE:
2600#if HAVE_STATX
2601 RETVAL = *(__u64 *)((char *)&stx + ix);
2602#else
2603 XSRETURN_UNDEF;
2604#endif
2605 OUTPUT:
2606 RETVAL
2607
2608NV
2609stx_atime ()
2610 PROTOTYPE:
2611 ALIAS:
2612 stx_atime = STATX_OFFSET_atime
2613 stx_btime = STATX_OFFSET_btime
2614 stx_ctime = STATX_OFFSET_ctime
2615 stx_mtime = STATX_OFFSET_mtime
2616 CODE:
2617#if HAVE_STATX
2618 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2619 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2620#else
2621 XSRETURN_UNDEF;
2622#endif
2623 OUTPUT:
2624 RETVAL
2625
2626VAL64
2627stx_atimesec ()
2628 PROTOTYPE:
2629 ALIAS:
2630 stx_atimesec = STATX_OFFSET_atime
2631 stx_btimesec = STATX_OFFSET_btime
2632 stx_ctimesec = STATX_OFFSET_ctime
2633 stx_mtimesec = STATX_OFFSET_mtime
2634 CODE:
2635#if HAVE_STATX
2636 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2637 RETVAL = ts->tv_sec;
2638#else
2639 XSRETURN_UNDEF;
2640#endif
2641 OUTPUT:
2642 RETVAL
2643
2644U32
2645stx_atimensec ()
2646 PROTOTYPE:
2647 ALIAS:
2648 stx_atimensec = STATX_OFFSET_atime
2649 stx_btimensec = STATX_OFFSET_btime
2650 stx_ctimensec = STATX_OFFSET_ctime
2651 stx_mtimensec = STATX_OFFSET_mtime
2652 CODE:
2653#if HAVE_STATX
2654 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2655 RETVAL = ts->tv_nsec;
2656#else
2657 RETVAL = 0;
2658#endif
2659 OUTPUT:
2660 RETVAL
2661
1745void 2662void
1746setsig (int signum = SIGIO) 2663accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2664 PPCODE:
2665{
2666 SV *retval;
2667#if HAVE_ACCEPT4
2668 socklen_t salen_ = salen ? salen + 1 : 0;
2669
2670 if (salen)
2671 {
2672 sv_upgrade (sockaddr, SVt_PV);
2673 sv_grow (sockaddr, salen_);
2674 }
2675
2676 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2677
2678 retval = newmortalFH (res, O_RDWR);
2679
2680 if (res >= 0 && salen > 0)
2681 {
2682 if (salen_ > salen + 1)
2683 salen_ = salen + 1;
2684
2685 SvPOK_only (sockaddr);
2686 SvCUR_set (sockaddr, salen_);
2687 }
2688#else
2689 errno = ENOSYS;
2690 retval = &PL_sv_undef;
2691#endif
2692 XPUSHs (retval);
2693}
2694
2695ssize_t
2696splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2697 CODE:
2698{
2699#if HAVE_LINUX_SPLICE
2700 loff_t off_in_, off_out_;
2701 RETVAL = splice (
2702 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2703 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2704 length, flags
2705 );
2706#else
2707 RETVAL = EIO_ENOSYS ();
2708#endif
2709}
2710 OUTPUT:
2711 RETVAL
2712
2713ssize_t
2714tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2715 CODE:
2716#if HAVE_LINUX_SPLICE
2717 RETVAL = tee (rfh, wfh, length, flags);
2718#else
2719 RETVAL = EIO_ENOSYS ();
2720#endif
2721 OUTPUT:
2722 RETVAL
2723
2724int
2725pipesize (aio_rfd rfh, int new_size = -1)
2726 PROTOTYPE: $;$
2727 CODE:
2728#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2729 if (new_size >= 0)
2730 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2731 else
2732 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2733#else
2734 errno = ENOSYS;
2735 RETVAL = -1;
2736#endif
2737 OUTPUT:
2738 RETVAL
2739
2740void
2741pipe2 (int flags = 0)
1747 PROTOTYPE: ;$ 2742 PROTOTYPE: ;$
1748 CODE:
1749{
1750 if (block_sig_level)
1751 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1752
1753 LOCK (reslock);
1754 main_tid = pthread_self ();
1755 main_sig = signum;
1756 UNLOCK (reslock);
1757
1758 if (main_sig && npending)
1759 pthread_kill (main_tid, main_sig);
1760}
1761
1762void
1763aio_block (SV *cb)
1764 PROTOTYPE: &
1765 PPCODE: 2743 PPCODE:
1766{ 2744{
1767 int count; 2745 int fd[2];
2746 int res;
1768 2747
1769 block_sig (); 2748 if (flags)
1770 PUSHMARK (SP); 2749#if HAVE_PIPE2
1771 PUTBACK; 2750 res = pipe2 (fd, flags);
1772 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2751#else
1773 SPAGAIN; 2752 res = (errno = ENOSYS, -1);
1774 unblock_sig (); 2753#endif
2754 else
2755 res = pipe (fd);
1775 2756
1776 if (SvTRUE (ERRSV)) 2757 if (!res)
1777 croak (0); 2758 {
2759 EXTEND (SP, 2);
2760 PUSHs (newmortalFH (fd[0], O_RDONLY));
2761 PUSHs (newmortalFH (fd[1], O_WRONLY));
2762 }
2763}
1778 2764
1779 XSRETURN (count); 2765void
2766pidfd_open (int pid, unsigned int flags = 0)
2767 PPCODE:
2768{
2769 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2770 int fd = syscall (SYS_pidfd_open, pid, flags);
2771 XPUSHs (newmortalFH (fd, O_RDWR));
1780} 2772}
1781 2773
1782int 2774int
1783nreqs() 2775pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1784 PROTOTYPE: 2776 PPCODE:
2777{
2778 int res;
2779#if HAVE_SIGINFO_T
2780 siginfo_t si = { 0 };
2781
2782 if (SvOK (siginfo))
2783 {
2784 HV *hv;
2785 SV **svp;
2786
2787 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2788 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2789
2790 hv = (HV *)SvRV (siginfo);
2791
2792 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2793 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2794 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2795 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2796 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2797 }
2798
2799 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2800 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2801#else
2802 res = (errno = ENOSYS, -1);
2803#endif
2804
2805 XPUSHs (sv_2mortal (newSViv (res)));
2806}
2807
2808void
2809pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2810 PPCODE:
2811{
2812 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2813 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2814 XPUSHs (newmortalFH (fd, O_RDWR));
2815}
2816
2817void
2818eventfd (unsigned int initval = 0, int flags = 0)
2819 PPCODE:
2820{
2821 int fd;
2822#if HAVE_EVENTFD
2823 fd = eventfd (initval, flags);
2824#else
2825 fd = (errno = ENOSYS, -1);
2826#endif
2827
2828 XPUSHs (newmortalFH (fd, O_RDWR));
2829}
2830
2831void
2832timerfd_create (int clockid, int flags = 0)
2833 PPCODE:
2834{
2835 int fd;
2836#if HAVE_TIMERFD
2837 fd = timerfd_create (clockid, flags);
2838#else
2839 fd = (errno = ENOSYS, -1);
2840#endif
2841
2842 XPUSHs (newmortalFH (fd, O_RDWR));
2843}
2844
2845void
2846timerfd_settime (SV *fh, int flags, NV interval, NV value)
2847 PPCODE:
2848{
2849 int fd = s_fileno_croak (fh, 0);
2850#if HAVE_TIMERFD
2851 int res;
2852 struct itimerspec its, ots;
2853
2854 ts_set (&its.it_interval, interval);
2855 ts_set (&its.it_value , value);
2856 res = timerfd_settime (fd, flags, &its, &ots);
2857
2858 if (!res)
2859 {
2860 EXTEND (SP, 2);
2861 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2862 PUSHs (newSVnv (ts_get (&ots.it_value)));
2863 }
2864#else
2865 errno = ENOSYS;
2866#endif
2867}
2868
2869void
2870timerfd_gettime (SV *fh)
2871 PPCODE:
2872{
2873 int fd = s_fileno_croak (fh, 0);
2874#if HAVE_TIMERFD
2875 int res;
2876 struct itimerspec ots;
2877 res = timerfd_gettime (fd, &ots);
2878
2879 if (!res)
2880 {
2881 EXTEND (SP, 2);
2882 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2883 PUSHs (newSVnv (ts_get (&ots.it_value)));
2884 }
2885#else
2886 errno = ENOSYS;
2887#endif
2888}
2889
2890void
2891memfd_create (octet_string pathname, int flags = 0)
2892 PPCODE:
2893{
2894 int fd;
2895#if HAVE_MEMFD_CREATE
2896 fd = memfd_create (pathname, flags);
2897#else
2898 fd = (errno = ENOSYS, -1);
2899#endif
2900
2901 XPUSHs (newmortalFH (fd, O_RDWR));
2902}
2903
2904int
2905fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
1785 CODE: 2906 CODE:
1786 RETVAL = nreqs; 2907{
2908 int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
2909 char **envp, **argv;
2910 argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
2911 if (!SvOK (envs))
2912 {
2913 extern char **environ;
2914 envp = environ;
2915 }
2916 else
2917 envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
2918#if _POSIX_VERSION >= 200809L
2919 RETVAL = fexecve (fd, argv, envp);
2920#else
2921 RETVAL = (errno = ENOSYS, -1);
2922#endif
2923}
2924 OUTPUT: RETVAL
2925
2926int
2927mount (octet_string special, octet_string path, octet_string fstype, UV flags = 0, octet_string_ornull data = 0)
2928 OUTPUT: RETVAL
2929
2930int
2931umount (octet_string path, int flags = 0)
2932 CODE:
2933 if (flags)
2934#if HAVE_UMOUNT2
2935 RETVAL = umount2 (path, flags);
2936#else
2937 RETVAL = (errno = ENOSYS, -1);
2938#endif
2939 else
2940 RETVAL = umount (path);
2941 OUTPUT: RETVAL
2942
2943UV
2944get_fdlimit ()
2945 CODE:
2946#if HAVE_RLIMITS
2947 struct rlimit rl;
2948 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2949 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2950#endif
2951 XSRETURN_UNDEF;
1787 OUTPUT: 2952 OUTPUT:
1788 RETVAL 2953 RETVAL
1789 2954
1790int 2955void
1791nready() 2956min_fdlimit (UV limit = 0x7fffffffU)
1792 PROTOTYPE:
1793 CODE: 2957 CODE:
1794 RETVAL = get_nready (); 2958{
1795 OUTPUT: 2959#if HAVE_RLIMITS
1796 RETVAL 2960 struct rlimit rl;
2961 rlim_t orig_rlim_max;
2962 UV bit;
1797 2963
1798int 2964 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1799npending() 2965 goto fail;
1800 PROTOTYPE: 2966
2967 if (rl.rlim_cur == RLIM_INFINITY)
2968 XSRETURN_YES;
2969
2970 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2971
2972 if (rl.rlim_cur < limit)
2973 {
2974 rl.rlim_cur = limit;
2975
2976 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2977 rl.rlim_max = rl.rlim_cur;
2978 }
2979
2980 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2981 XSRETURN_YES;
2982
2983 if (errno == EPERM)
2984 {
2985 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2986 /* our limit overflows a system-wide limit */
2987 /* try an adaptive algorithm, but do not lower the hardlimit */
2988 rl.rlim_max = 0;
2989 for (bit = 0x40000000U; bit; bit >>= 1)
2990 {
2991 rl.rlim_max |= bit;
2992 rl.rlim_cur = rl.rlim_max;
2993
2994 /* never decrease the hard limit */
2995 if (rl.rlim_max < orig_rlim_max)
2996 break;
2997
2998 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2999 rl.rlim_max &= ~bit; /* too high, remove bit again */
3000 }
3001
3002 /* now, raise the soft limit to the max permitted */
3003 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
3004 {
3005 rl.rlim_cur = rl.rlim_max;
3006 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
3007 errno = EPERM;
3008 }
3009 }
3010#endif
3011 fail:
3012 XSRETURN_UNDEF;
3013}
3014
3015void _on_next_submit (SV *cb)
1801 CODE: 3016 CODE:
1802 RETVAL = get_npending (); 3017 SvREFCNT_dec (on_next_submit);
1803 OUTPUT: 3018 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1804 RETVAL
1805 3019
1806int 3020PROTOTYPES: DISABLE
1807nthreads() 3021
1808 PROTOTYPE: 3022MODULE = IO::AIO PACKAGE = IO::AIO::WD
3023
3024BOOT:
3025{
3026 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
3027 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
3028}
3029
3030void
3031DESTROY (SV *self)
1809 CODE: 3032 CODE:
1810 if (WORDACCESS_UNSAFE) LOCK (wrklock); 3033{
1811 RETVAL = started; 3034 aio_wd wd = SvAIO_WD (self);
1812 if (WORDACCESS_UNSAFE) UNLOCK (wrklock); 3035#if HAVE_AT
1813 OUTPUT: 3036 {
1814 RETVAL 3037 SV *callback = &PL_sv_undef;
1815 3038 dREQ; /* clobbers next_pri :/ */
1816PROTOTYPES: DISABLE 3039 next_pri = req->pri; /* restore next_pri */
3040 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
3041 req->type = EIO_WD_CLOSE;
3042 req->wd = wd;
3043 REQ_SEND;
3044 }
3045#else
3046 eio_wd_close_sync (wd);
3047#endif
3048}
1817 3049
1818MODULE = IO::AIO PACKAGE = IO::AIO::REQ 3050MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1819 3051
1820void 3052void
1821cancel (aio_req_ornot req) 3053cancel (aio_req_ornot req)
1822 CODE: 3054 CODE:
1823 req_cancel (req); 3055 eio_cancel (req);
1824 3056
1825void 3057void
1826cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 3058cb (aio_req_ornot req, SV *callback = NO_INIT)
1827 CODE: 3059 PPCODE:
3060{
3061 if (GIMME_V != G_VOID)
3062 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
3063
3064 if (items > 1)
3065 {
3066 SV *cb_cv = get_cb (callback);
3067
1828 SvREFCNT_dec (req->callback); 3068 SvREFCNT_dec (req->callback);
1829 req->callback = newSVsv (callback); 3069 req->callback = SvREFCNT_inc (cb_cv);
3070 }
3071}
1830 3072
1831MODULE = IO::AIO PACKAGE = IO::AIO::GRP 3073MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1832 3074
1833void 3075void
1834add (aio_req grp, ...) 3076add (aio_req grp, ...)
1835 PPCODE: 3077 PPCODE:
1836{ 3078{
1837 int i; 3079 int i;
1838 aio_req req;
1839
1840 if (main_sig && !block_sig_level)
1841 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1842 3080
1843 if (grp->int1 == 2) 3081 if (grp->int1 == 2)
1844 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 3082 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1845 3083
1846 for (i = 1; i < items; ++i ) 3084 for (i = 1; i < items; ++i )
1847 { 3085 {
3086 aio_req req;
3087
1848 if (GIMME_V != G_VOID) 3088 if (GIMME_V != G_VOID)
1849 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 3089 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1850 3090
1851 req = SvAIO_REQ (ST (i)); 3091 req = SvAIO_REQ (ST (i));
1852 3092
1853 if (req) 3093 if (req)
1854 { 3094 eio_grp_add (grp, req);
1855 ++grp->size;
1856 req->grp = grp;
1857
1858 req->grp_prev = 0;
1859 req->grp_next = grp->grp_first;
1860
1861 if (grp->grp_first)
1862 grp->grp_first->grp_prev = req;
1863
1864 grp->grp_first = req;
1865 }
1866 } 3095 }
1867} 3096}
1868 3097
1869void 3098void
1870cancel_subs (aio_req_ornot req) 3099cancel_subs (aio_req_ornot req)
… …
1879 AV *av; 3108 AV *av;
1880 3109
1881 grp->errorno = errno; 3110 grp->errorno = errno;
1882 3111
1883 av = newAV (); 3112 av = newAV ();
3113 av_extend (av, items - 1);
1884 3114
1885 for (i = 1; i < items; ++i ) 3115 for (i = 1; i < items; ++i )
1886 av_push (av, newSVsv (ST (i))); 3116 av_push (av, newSVsv (ST (i)));
1887 3117
1888 SvREFCNT_dec (grp->sv1); 3118 SvREFCNT_dec (grp->sv1);
… …
1895 grp->errorno = errorno; 3125 grp->errorno = errorno;
1896 3126
1897void 3127void
1898limit (aio_req grp, int limit) 3128limit (aio_req grp, int limit)
1899 CODE: 3129 CODE:
1900 grp->int2 = limit; 3130 eio_grp_limit (grp, limit);
1901 aio_grp_feed (grp);
1902 3131
1903void 3132void
1904feed (aio_req grp, SV *callback=&PL_sv_undef) 3133feed (aio_req grp, SV *callback = &PL_sv_undef)
1905 CODE: 3134 CODE:
1906{ 3135{
1907 SvREFCNT_dec (grp->sv2); 3136 SvREFCNT_dec (grp->sv2);
1908 grp->sv2 = newSVsv (callback); 3137 grp->sv2 = newSVsv (callback);
3138 grp->feed = aio_grp_feed;
1909 3139
1910 if (grp->int2 <= 0) 3140 if (grp->int2 <= 0)
1911 grp->int2 = 2; 3141 grp->int2 = 2;
1912 3142
1913 aio_grp_feed (grp); 3143 eio_grp_limit (grp, grp->int2);
1914} 3144}
1915 3145

Diff Legend

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