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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.287 by root, Tue Dec 29 15:28:02 2020 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
9
10#if !defined mg_findext
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
8 13
9#include <stddef.h> 14#include <stddef.h>
10#include <stdlib.h> 15#include <stdlib.h>
11#include <errno.h> 16#include <errno.h>
12#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
13#include <sys/stat.h> 19#include <sys/stat.h>
14#include <limits.h> 20#include <limits.h>
15#include <fcntl.h> 21#include <fcntl.h>
16#include <sched.h> 22#include <sched.h>
17 23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
18#ifdef _WIN32 47#ifdef _WIN32
19 48
20# define SIGIO 0 49 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 50
22#undef malloc 51 #undef malloc
23#undef free 52 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 53 #undef open
27# undef read 54 #undef read
28# undef write 55 #undef write
56 #undef send
57 #undef recv
29# undef stat 58 #undef stat
59 #undef lstat
30# undef fstat 60 #undef fstat
31# define lstat stat
32# undef truncate 61 #undef truncate
33# undef ftruncate 62 #undef ftruncate
34# undef open 63 #undef open
64 #undef link
35# undef close 65 #undef close
36# undef unlink 66 #undef unlink
67 #undef mkdir
37# undef rmdir 68 #undef rmdir
38# undef rename 69 #undef rename
39# undef lseek 70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
40 81
41# define chown(a,b,c) (errno = ENOSYS, -1) 82 #define EIO_STRUCT_STAT struct _stati64
42# define fchown(a,b,c) (errno = ENOSYS, -1) 83 #define EIO_STRUCT_STATI64
43# define fchmod(a,b) (errno = ENOSYS, -1)
44# define symlink(a,b) (errno = ENOSYS, -1)
45# define readlink(a,b,c) (errno = ENOSYS, -1)
46# define mknod(a,b,c) (errno = ENOSYS, -1)
47# define truncate(a,b) (errno = ENOSYS, -1)
48# define ftruncate(fd,o) chsize ((fd), (o))
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1)
52# define closedir(fd) (errno = ENOSYS, -1)
53# define mkdir(a,b) mkdir (a)
54 84
55#else 85#else
56 86
57# include "autoconf/config.h"
58# include <sys/time.h> 87 #include <sys/time.h>
59# include <sys/select.h> 88 #include <sys/select.h>
89 #include <sys/wait.h>
60# include <unistd.h> 90 #include <unistd.h>
61# include <utime.h> 91 #include <utime.h>
62# include <signal.h> 92 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 93
65#endif 94 #define EIO_STRUCT_STAT Stat_t
66 95
67#if HAVE_SENDFILE 96#endif
68# if __linux 97
69# include <sys/sendfile.h> 98/*****************************************************************************/
70# elif __freebsd 99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
71# include <sys/socket.h> 114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
72# include <sys/uio.h> 124# include <sys/uio.h>
73# elif __hpux 125#endif
74# include <sys/socket.h> 126
75# elif __solaris /* not yet */ 127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
157
158#include "schmorp.h"
159
160#if HAVE_EVENTFD
76# include <sys/sendfile.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
166#endif
167
168#if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171#endif
172
173typedef SV SV8; /* byte-sv, used for argument-checking */
174typedef int aio_rfd; /* read file desriptor */
175typedef int aio_wfd; /* write file descriptor */
176
177static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179#define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186#define EIO_NO_WRAPPERS 1
187
188#include "libeio/eio.h"
189
190static int req_invoke (eio_req *req);
191#define EIO_FINISH(req) req_invoke (req)
192static void req_destroy (eio_req *grp);
193#define EIO_DESTROY(req) req_destroy (req)
194
195#include "libeio/eio.c"
196
197#if !HAVE_POSIX_FADVISE
198# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199#endif
200
201#if !HAVE_POSIX_MADVISE
202# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203#endif
204
205#ifndef MAP_ANONYMOUS
206# ifdef MAP_ANON
207# define MAP_ANONYMOUS MAP_ANON
77# else 208# else
78# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
79# endif 210# endif
80#endif 211#endif
81 212
82/* number of seconds after which idle threads exit */ 213#ifndef makedev
83#define IDLE_TIMEOUT 10 214# define makedev(maj,min) (((maj) << 8) | (min))
84
85/* used for struct dirent, AIX doesn't provide it */
86#ifndef NAME_MAX
87# define NAME_MAX 4096
88#endif 215#endif
216#ifndef major
217# define major(dev) ((dev) >> 8)
218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
89 222
90/* buffer size for various temporary buffers */ 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
91#define AIO_BUFSIZE 65536 224#ifdef __sun
225# undef PAGESIZE
226#endif
92 227
93/* use NV for 32 bit perls as it allows larger offsets */ 228#if PAGESIZE <= 0
94#if IVSIZE >= 8 229# define PAGESIZE sysconf (_SC_PAGESIZE)
95# define SvVAL64 SvIV 230#endif
231
232#if HAVE_SYSCALL
233#include <sys/syscall.h>
96#else 234#else
97# define SvVAL64 SvNV 235# define syscall(nr,...) (errno = ENOSYS, -1)
98#endif 236#endif
99 237
100#define dBUF \ 238/*****************************************************************************/
101 char *aio_buf; \ 239
102 X_LOCK (wrklock); \ 240#if !_POSIX_MAPPED_FILES
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 241# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
104 X_UNLOCK (wrklock); \ 242# define munmap(addr,length) EIO_ENOSYS ()
105 if (!aio_buf) \ 243#endif
244
245#if !_POSIX_MEMORY_PROTECTION
246# define mprotect(addr,len,prot) EIO_ENOSYS ()
247#endif
248
249#if !MREMAP_MAYMOVE
250# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
251#endif
252
253#define FOREIGN_MAGIC PERL_MAGIC_ext
254
255static int ecb_cold
256mmap_free (pTHX_ SV *sv, MAGIC *mg)
257{
258 int old_errno = errno;
259 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
260 errno = old_errno;
261
262 mg->mg_obj = 0; /* just in case */
263
264 SvREADONLY_off (sv);
265
266 if (SvPVX (sv) != mg->mg_ptr)
267 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
268
269 SvCUR_set (sv, 0);
270 SvPVX (sv) = 0;
271 SvOK_off (sv);
272
106 return -1; 273 return 0;
274}
107 275
108typedef SV SV8; /* byte-sv, used for argument-checking */ 276static MGVTBL mmap_vtbl = {
109 277 0, 0, 0, 0, mmap_free
110enum {
111 REQ_QUIT,
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126}; 278};
127 279
128#define AIO_REQ_KLASS "IO::AIO::REQ" 280static int ecb_cold
129#define AIO_GRP_KLASS "IO::AIO::GRP" 281sysfree_free (pTHX_ SV *sv, MAGIC *mg)
130
131typedef struct aio_cb
132{ 282{
133 struct aio_cb *volatile next; 283 free (mg->mg_ptr);
284 mg->mg_obj = 0; /* just in case */
134 285
135 SV *callback; 286 SvREADONLY_off (sv);
136 SV *sv1, *sv2;
137 void *ptr1, *ptr2;
138 off_t offs;
139 size_t size;
140 ssize_t result;
141 double nv1, nv2;
142 287
143 STRLEN stroffset; 288 if (SvPVX (sv) != mg->mg_ptr)
144 int type; 289 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148 290
149 unsigned char flags; 291 SvCUR_set (sv, 0);
150 unsigned char pri; 292 SvPVX (sv) = 0;
293 SvOK_off (sv);
151 294
152 SV *self; /* the perl counterpart of this request, if any */ 295 return 0;
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 296}
154} aio_cb;
155 297
156enum { 298static MGVTBL sysfree_vtbl = {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */ 299 0, 0, 0, 0, sysfree_free
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160}; 300};
161 301
162typedef aio_cb *aio_req; 302/*****************************************************************************/
163typedef aio_cb *aio_req_ornot;
164 303
165enum { 304/* helper: set scalar to foreign ptr with custom free */
166 PRI_MIN = -4, 305ecb_noinline
167 PRI_MAX = 4, 306static void
168 307sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
169 DEFAULT_PRI = 0,
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{ 308{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 309 sv_force_normal (sv);
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185 310
186static thread_t main_tid; 311 /* we store the length in mg_obj, as namlen is I32 :/ */
187static int main_sig; 312 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
188static int block_sig_level; 313 ->mg_obj = (SV *)length;
189 314
190void block_sig () 315 SvUPGRADE (sv, SVt_PV); /* nop... */
191{
192 sigset_t ss;
193 316
194 if (block_sig_level++) 317 if (SvLEN (sv))
318 Safefree (SvPVX (sv));
319
320 SvPVX (sv) = (char *)addr;
321 SvCUR_set (sv, length);
322 SvLEN_set (sv, 0);
323 SvPOK_only (sv);
324}
325
326static void
327sv_clear_foreign (SV *sv)
328{
329 /* todo: iterate over magic and only free ours, but of course */
330 /* the perl5porters will call that (correct) behaviour buggy */
331 sv_unmagic (sv, FOREIGN_MAGIC);
332}
333
334/*****************************************************************************/
335
336/* defines all sorts of constants to 0 unless they are already defined */
337/* also provides const_iv_ and const_niv_ macros for them */
338#include "def0.h"
339
340/*****************************************************************************/
341
342static void
343fiemap (eio_req *req)
344{
345 req->result = -1;
346
347#if HAVE_FIEMAP
348 /* assume some c99 */
349 struct fiemap *fiemap = 0;
350 size_t end_offset;
351 int count = req->int3;
352
353 req->flags |= EIO_FLAG_PTR1_FREE;
354
355 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
356 /* increase in fixed steps */
357 if (count < 0)
358 count = 8;
359
360 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
361 errno = ENOMEM;
362 if (!fiemap)
195 return; 363 return;
196 364
197 if (!main_sig) 365 req->ptr1 = fiemap;
366
367 fiemap->fm_start = req->offs;
368 fiemap->fm_length = req->size;
369 fiemap->fm_flags = req->int2;
370 fiemap->fm_extent_count = count;
371
372 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
198 return; 373 return;
199 374
200 sigemptyset (&ss); 375 if (req->int3 >= 0 /* not autosizing */
201 sigaddset (&ss, main_sig); 376 || !fiemap->fm_mapped_extents /* no more extents */
202 pthread_sigmask (SIG_BLOCK, &ss, 0); 377 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
203} 378 goto done;
204 379
205void unblock_sig () 380 /* else we have to loop -
206{ 381 * it would be tempting (actually I tried that first) to just query the
207 sigset_t ss; 382 * number of extents needed, but linux often feels like not returning all
383 * extents, without telling us it left any out. this complicates
384 * this quite a bit.
385 */
208 386
209 if (--block_sig_level) 387 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
210 return;
211 388
212 if (!main_sig) 389 for (;;)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 { 390 {
245 closedir (wrk->dirp); 391 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
246 wrk->dirp = 0; 392 char scratch[3072];
247 } 393 struct fiemap *incmap = (struct fiemap *)scratch;
248 394
249 if (wrk->dbuf) 395 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
250 { 396 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
251 free (wrk->dbuf); 397 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
252 wrk->dbuf = 0; 398 incmap->fm_flags = fiemap->fm_flags;
253 } 399 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
254}
255 400
256static void worker_free (worker *wrk) 401 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0; 402 return;
351 403
352 --q->size; 404 if (!incmap->fm_mapped_extents)
405 goto done;
353 406
354 for (pri = NUM_PRI; pri--; ) 407 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
355 { 408 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
356 aio_req req = q->qs[pri]; 409 errno = ENOMEM;
357
358 if (req) 410 if (!fiemap)
411 return;
412
413 req->ptr1 = fiemap;
414
415 for (count = 0; count < incmap->fm_mapped_extents; ++count)
359 { 416 {
360 if (!(q->qs[pri] = req->next)) 417 struct fiemap_extent *e = incmap->fm_extents + count;
361 q->qe[pri] = 0;
362 418
363 return req; 419 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
420
421 if (e->fe_logical >= end_offset)
422 goto done;
423
424 if (e->fe_flags & FIEMAP_EXTENT_LAST)
425 goto done;
426
364 } 427 }
365 } 428 }
366 429
367 abort (); 430done:
368} 431 req->result = 0;
369 432
370static int poll_cb (); 433#else
371static int req_invoke (aio_req req); 434 errno = ENOSYS;
435#endif
436}
437
438/*****************************************************************************/
439
440static int close_fd; /* dummy fd to close fds via dup2 */
441
442#if HAVE_STATX
443static struct statx stx;
444#define statx_offsetof(member) offsetof (struct statx, member)
445#define eio__statx statx
446#else
447#define statx_offsetof(member) 0
448#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
449#endif
450
451enum {
452 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
453};
454
455typedef eio_req *aio_req;
456typedef eio_req *aio_req_ornot;
457typedef eio_wd aio_wd;
458
459static SV *on_next_submit;
460static int next_pri = EIO_PRI_DEFAULT;
461static int max_outstanding;
462
463static s_epipe respipe;
464
372static void req_destroy (aio_req req); 465static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 466static void req_cancel (aio_req req);
374 467
468static void
469want_poll (void)
470{
471 /* write a dummy byte to the pipe so fh becomes ready */
472 s_epipe_signal (&respipe);
473}
474
475static void
476done_poll (void)
477{
478 /* read any signals sent by the worker threads */
479 s_epipe_drain (&respipe);
480}
481
375/* must be called at most once */ 482/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 483ecb_noinline
484static SV *
485req_sv (aio_req req, HV *stash)
377{ 486{
378 if (!req->self) 487 if (!req->self)
379 { 488 {
380 req->self = (SV *)newHV (); 489 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 490 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 491 }
383 492
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 493 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 494}
386 495
387static aio_req SvAIO_REQ (SV *sv) 496static SV *
497newSVaio_wd (aio_wd wd)
498{
499 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
500}
501
502ecb_noinline
503static aio_req
504SvAIO_REQ (SV *sv)
388{ 505{
389 MAGIC *mg; 506 MAGIC *mg;
390 507
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 508 if (!SvROK (sv)
509 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
510 || (SvSTASH (SvRV (sv)) != aio_grp_stash
511 && SvSTASH (SvRV (sv)) != aio_req_stash
512 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 513 croak ("object of class IO::AIO::REQ expected");
393 514
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 515 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 516
396 return mg ? (aio_req)mg->mg_ptr : 0; 517 return mg ? (aio_req)mg->mg_ptr : 0;
397} 518}
398 519
520static aio_wd
521SvAIO_WD (SV *sv)
522{
523 if (!SvROK (sv)
524 || SvTYPE (SvRV (sv)) != SVt_PVMG
525 || SvSTASH (SvRV (sv)) != aio_wd_stash)
526 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
527
528 return (aio_wd)(long)SvIVX (SvRV (sv));
529}
530
531static SV *
532newmortalFH (int fd, int flags)
533{
534 if (fd < 0)
535 return &PL_sv_undef;
536
537 GV *gv = (GV *)sv_newmortal ();
538 char sym[64];
539 int symlen;
540
541 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
542 gv_init (gv, aio_stash, sym, symlen, 0);
543
544 symlen = snprintf (
545 sym,
546 sizeof (sym),
547 "%s&=%d",
548 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
549 fd
550 );
551
552 return do_open (gv, sym, symlen, 0, 0, 0, 0)
553 ? (SV *)gv : &PL_sv_undef;
554}
555
556static void
399static void aio_grp_feed (aio_req grp) 557aio_grp_feed (aio_req grp)
400{ 558{
401 block_sig (); 559 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 560 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 561 dSP;
410 562
411 ENTER; 563 ENTER;
412 SAVETMPS; 564 SAVETMPS;
413 PUSHMARK (SP); 565 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 566 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 567 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 568 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 569 SPAGAIN;
418 FREETMPS; 570 FREETMPS;
419 LEAVE; 571 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 572 }
430
431 unblock_sig ();
432} 573}
433 574
434static void aio_grp_dec (aio_req grp) 575ecb_noinline
576static void
577req_submit (eio_req *req)
435{ 578{
436 --grp->size; 579 eio_submit (req);
437 580
438 /* call feeder, if applicable */ 581 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 582 {
444 block_sig (); 583 dSP;
584 SV *cb = sv_2mortal (on_next_submit);
445 585
446 if (!req_invoke (grp)) 586 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 587
453 req_destroy (grp); 588 PUSHMARK (SP);
454 unblock_sig (); 589 PUTBACK;
590 call_sv (cb, G_DISCARD | G_EVAL);
455 } 591 }
456} 592}
457 593
594static int
458static int req_invoke (aio_req req) 595req_invoke (eio_req *req)
459{ 596{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 597 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 598 SvREADONLY_off (req->sv2);
464 599
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 600 if (!EIO_CANCELLED (req) && req->callback)
466 { 601 {
602 dSP;
603 static SV *sv_result_cache; /* caches the result integer SV */
604 SV *sv_result;
605
467 ENTER; 606 ENTER;
468 SAVETMPS; 607 SAVETMPS;
469 PUSHMARK (SP); 608 PUSHMARK (SP);
470 EXTEND (SP, 1); 609 EXTEND (SP, 1);
471 610
611 /* do not recreate the result IV from scratch each time */
612 if (expect_true (sv_result_cache))
613 {
614 sv_result = sv_result_cache; sv_result_cache = 0;
615 SvIV_set (sv_result, req->result);
616 SvIOK_only (sv_result);
617 }
618 else
619 {
620 sv_result = newSViv (req->result);
621 SvREADONLY_on (sv_result);
622 }
623
472 switch (req->type) 624 switch (req->type)
473 { 625 {
626 case EIO_WD_OPEN:
627 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
628 break;
629
474 case REQ_READDIR: 630 case EIO_READDIR:
475 { 631 {
476 SV *rv = &PL_sv_undef; 632 SV *rv = &PL_sv_undef;
477 633
478 if (req->result >= 0) 634 if (req->result >= 0)
479 { 635 {
480 int i; 636 int i;
481 char *buf = req->ptr2; 637 char *names = (char *)req->ptr2;
638 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 639 AV *av = newAV ();
483 640
484 av_extend (av, req->result - 1); 641 av_extend (av, req->result - 1);
485 642
486 for (i = 0; i < req->result; ++i) 643 for (i = 0; i < req->result; ++i)
487 { 644 {
488 SV *sv = newSVpv (buf, 0); 645 if (req->int1 & EIO_READDIR_DENTS)
646 {
647 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 648
649 if (req->int1 & EIO_READDIR_CUSTOM2)
650 {
651 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
652 AV *avent = newAV ();
653
654 av_extend (avent, 2);
655
656 if (!sv_type [ent->type])
657 {
658 sv_type [ent->type] = newSViv (ent->type);
659 SvREADONLY_on (sv_type [ent->type]);
660 }
661
662 av_store (avent, 0, namesv);
663 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
664 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
665
666 av_store (av, i, newRV_noinc ((SV *)avent));
667 }
668 else
490 av_store (av, i, sv); 669 av_store (av, i, namesv);
670
671 ++ent;
672 }
673 else
674 {
675 SV *name = newSVpv (names, 0);
676 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 677 names += SvCUR (name) + 1;
678 }
492 } 679 }
493 680
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 681 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 682 }
496 683
497 PUSHs (rv); 684 PUSHs (rv);
685
686 if (req->int1 & EIO_READDIR_CUSTOM1)
687 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 688 }
499 break; 689 break;
500 690
501 case REQ_OPEN: 691 case EIO_OPEN:
692 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
693 break;
694
695 case EIO_STATVFS:
696 case EIO_FSTATVFS:
502 { 697 {
503 /* convert fd to fh */ 698 SV *rv = &PL_sv_undef;
504 SV *fh; 699
700#ifndef _WIN32
701 if (req->result >= 0)
702 {
703 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
704 HV *hv = newHV ();
705 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
706 * chooses to make it a struct.
707 */
708 unsigned long fsid = 0;
709 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
505 710
506 PUSHs (sv_2mortal (newSViv (req->result))); 711 rv = sv_2mortal (newRV_noinc ((SV *)hv));
507 PUTBACK;
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
509 SPAGAIN;
510 712
511 fh = POPs; 713 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
512 PUSHMARK (SP); 714 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
715 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
716 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
717 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
718 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
719 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
720 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
721 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
722 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
723 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
724 }
725#endif
726
513 XPUSHs (fh); 727 PUSHs (rv);
514 } 728 }
729
515 break; 730 break;
516 731
517 case REQ_GROUP: 732 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 733 req->int1 = 2; /* mark group as finished */
519 734
520 if (req->sv1) 735 if (req->sv1)
521 { 736 {
522 int i; 737 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 741 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 742 PUSHs (*av_fetch (av, i, 0));
528 } 743 }
529 break; 744 break;
530 745
531 case REQ_NOP: 746 case EIO_NOP:
532 case REQ_BUSY: 747 case EIO_BUSY:
533 break; 748 break;
534 749
535 case REQ_READLINK: 750 case EIO_READLINK:
751 case EIO_REALPATH:
536 if (req->result > 0) 752 if (req->result > 0)
753 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
754 break;
755
756 case EIO_STAT:
757 case EIO_LSTAT:
758 case EIO_FSTAT:
759 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
760
761 if (!(PL_laststatval = req->result))
762 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
763 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
764
765 PUSHs (sv_result);
766 break;
767
768 case EIO_SEEK:
769 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
770 break;
771
772 case EIO_READ:
773 {
774 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
775 *SvEND (req->sv2) = 0;
776 SvPOK_only (req->sv2);
777 SvSETMAGIC (req->sv2);
778 PUSHs (sv_result);
779 }
780 break;
781
782 case EIO_SLURP:
783 {
784 if (req->result >= 0)
785 {
786 /* if length was originally not known, we steal the malloc'ed memory */
787 if (req->flags & EIO_FLAG_PTR2_FREE)
788 {
789 req->flags &= ~EIO_FLAG_PTR2_FREE;
790 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
791 }
792 else
793 {
794 SvCUR_set (req->sv2, req->result);
795 *SvEND (req->sv2) = 0;
796 SvPOK_only (req->sv2);
797 }
798
799 SvSETMAGIC (req->sv2);
800 }
801
802 PUSHs (sv_result);
803 }
804 break;
805
806 case EIO_CUSTOM:
807 if (req->feed == fiemap)
537 { 808 {
538 SvCUR_set (req->sv2, req->result); 809#if HAVE_FIEMAP
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2); 810 if (!req->result)
811 {
812 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
813
814 if (fiemap->fm_extent_count)
815 {
816 AV *av = newAV ();
817 int i;
818
819 while (fiemap->fm_mapped_extents)
820 {
821 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
822 AV *ext_av = newAV ();
823
824 av_store (ext_av, 3, newSVuv (extent->fe_flags));
825 av_store (ext_av, 2, newSVval64 (extent->fe_length));
826 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
827 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
828
829 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
830 }
831
832 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
833 }
834 else
835 {
836 SvIV_set (sv_result, fiemap->fm_mapped_extents);
837 PUSHs (sv_result);
838 }
839 }
840#endif
541 } 841 }
842 else
843 PUSHs (sv_result);
542 break; 844 break;
543 845
544 case REQ_STAT: 846#if 0
545 case REQ_LSTAT: 847 case EIO_CLOSE:
546 case REQ_FSTAT: 848 PerlIOUnix_refcnt_dec (req->int1);
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
548 PL_laststatval = req->result;
549 PL_statcache = *(Stat_t *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result)));
551 break; 849 break;
850#endif
552 851
553 case REQ_READ: 852 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 853 if (req->result > 0)
555 *SvEND (req->sv2) = 0; 854 SvIV_set (sv_result, 0);
556 PUSHs (sv_2mortal (newSViv (req->result))); 855 /* FALLTHROUGH */
557 break;
558 856
559 default: 857 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 858 PUSHs (sv_result);
561 break; 859 break;
562 } 860 }
563 861
564 errno = req->errorno; 862 errno = req->errorno;
565 863
566 PUTBACK; 864 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 865 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 866 SPAGAIN;
867
868 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
869 SvREFCNT_dec (sv_result);
870 else
871 sv_result_cache = sv_result;
569 872
570 FREETMPS; 873 FREETMPS;
571 LEAVE; 874 LEAVE;
875
876 PUTBACK;
572 } 877 }
573 878
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 879 return !!SvTRUE (ERRSV);
589} 880}
590 881
882static void
591static void req_destroy (aio_req req) 883req_destroy (aio_req req)
592{ 884{
593 if (req->self) 885 if (req->self)
594 { 886 {
595 sv_unmagic (req->self, PERL_MAGIC_ext); 887 sv_unmagic (req->self, PERL_MAGIC_ext);
596 SvREFCNT_dec (req->self); 888 SvREFCNT_dec (req->self);
597 } 889 }
598 890
599 SvREFCNT_dec (req->sv1); 891 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 892 SvREFCNT_dec (req->sv2);
893 SvREFCNT_dec (req->sv3);
894 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 895 SvREFCNT_dec (req->callback);
602 896
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 897 free (req);
607} 898}
608 899
900static void
609static void req_cancel_subs (aio_req grp) 901req_cancel_subs (aio_req grp)
610{ 902{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 903 if (grp->type != EIO_GROUP)
614 return; 904 return;
615 905
616 SvREFCNT_dec (grp->sv2); 906 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 907 grp->sv2 = 0;
618 908
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 909 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 910}
622 911
623static void req_cancel (aio_req req) 912ecb_cold
913static void
914create_respipe (void)
624{ 915{
625 req->flags |= FLAG_CANCELLED; 916 if (s_epipe_renew (&respipe))
626 917 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 918}
629 919
630X_THREAD_PROC (aio_proc); 920static void
631 921poll_wait (void)
632static void start_thread (void)
633{ 922{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait ()
726{
727 fd_set rfd;
728
729 while (nreqs) 923 while (eio_nreqs ())
730 { 924 {
731 int size; 925 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 926
927 X_LOCK (EIO_POOL->reslock);
733 size = res_queue.size; 928 size = EIO_POOL->res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 929 X_UNLOCK (EIO_POOL->reslock);
735 930
736 if (size) 931 if (size)
737 return; 932 return;
738 933
739 maybe_start_thread (); 934 etp_maybe_start_thread (EIO_POOL);
740 935
741 FD_ZERO(&rfd); 936 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 937 }
746} 938}
747 939
748static int poll_cb () 940static int
941poll_cb (void)
749{ 942{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 943 for (;;)
763 { 944 {
764 for (;;) 945 int res = eio_poll ();
946
947 if (res > 0)
948 croak (0);
949
950 if (!max_outstanding || max_outstanding > eio_nreqs ())
951 return res;
952
953 poll_wait ();
954 }
955}
956
957ecb_cold
958static void
959reinit (void)
960{
961 create_respipe ();
962
963 if (eio_init (want_poll, done_poll) < 0)
964 croak ("IO::AIO: unable to initialise eio library");
965}
966
967/*****************************************************************************/
968
969static SV *
970get_cb (SV *cb_sv)
971{
972 SvGETMAGIC (cb_sv);
973 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
974}
975
976ecb_noinline
977static aio_req ecb_noinline
978dreq (SV *callback)
979{
980 SV *cb_cv;
981 aio_req req;
982 int req_pri = next_pri;
983 next_pri = EIO_PRI_DEFAULT;
984
985 cb_cv = get_cb (callback);
986
987 req = calloc (sizeof (*req), 1);
988 if (!req)
989 croak ("out of memory during eio_req allocation");
990
991 req->callback = SvREFCNT_inc (cb_cv);
992 req->pri = req_pri;
993
994 return req;
995}
996
997#define dREQ \
998 aio_req req = dreq (callback); \
999
1000#define REQ_SEND \
1001 PUTBACK; \
1002 req_submit (req); \
1003 SPAGAIN; \
1004 \
1005 if (GIMME_V != G_VOID) \
1006 XPUSHs (req_sv (req, aio_req_stash));
1007
1008/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1009ecb_inline
1010void
1011req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1012{
1013 if (expect_false (SvROK (path)))
1014 {
1015 SV *rv = SvRV (path);
1016 SV *wdob;
1017
1018 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
765 { 1019 {
766 maybe_start_thread (); 1020 path = AvARRAY (rv)[1];
1021 wdob = AvARRAY (rv)[0];
767 1022
768 X_LOCK (reslock); 1023 if (SvOK (wdob))
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 { 1024 {
773 --npending; 1025 *wd = SvAIO_WD (wdob);
774 1026 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 } 1027 }
796 else 1028 else
797 { 1029 *wd = EIO_INVALID_WD;
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0);
803 }
804
805 count++;
806 }
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 } 1030 }
1031 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1032 {
1033 *wd = (aio_wd)(long)SvIVX (rv);
1034 *wdsv = SvREFCNT_inc_NN (rv);
1035 *ptr = ".";
1036 return; /* path set to "." */
1037 }
1038 else
1039 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1040 }
821 1041
822 if (nreqs <= max_outstanding) 1042 *pathsv = newSVsv (path);
1043 *ptr = SvPVbyte_nolen (*pathsv);
1044}
1045
1046ecb_noinline
1047static void
1048req_set_path1 (aio_req req, SV *path)
1049{
1050 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1051}
1052
1053ecb_noinline
1054static void
1055req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1056{
1057 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1058
1059 switch (SvTYPE (rv))
1060 {
1061 case SVt_PVIO:
1062 case SVt_PVLV:
1063 case SVt_PVGV:
1064 req->type = type_fh;
1065 req->sv1 = newSVsv (fh_or_path);
1066 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823 break; 1067 break;
824 1068
825 poll_wait (); 1069 default:
826 1070 req->type = type_path;
827 ++maxreqs; 1071 req_set_path1 (req, fh_or_path);
1072 break;
828 } 1073 }
829
830 unblock_sig ();
831 return count;
832} 1074}
833 1075
834/*****************************************************************************/ 1076/*****************************************************************************/
835/* work around various missing functions */
836 1077
837#if !HAVE_PREADWRITE 1078static void
838# define pread aio_pread 1079ts_set (struct timespec *ts, NV value)
839# define pwrite aio_pwrite
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{ 1080{
850 ssize_t res; 1081 ts->tv_sec = value;
851 off_t ooffset; 1082 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861} 1083}
862 1084
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1085static NV
1086ts_get (const struct timespec *ts)
864{ 1087{
865 ssize_t res; 1088 return ts->tv_sec + ts->tv_nsec * 1e-9;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876} 1089}
877#endif
878 1090
879#ifndef HAVE_FUTIMES 1091/*****************************************************************************/
880 1092
881# define utimes(path,times) aio_utimes (path, times) 1093XS(boot_IO__AIO) ecb_cold;
882# define futimes(fd,times) aio_futimes (fd, times)
883 1094
884int aio_utimes (const char *filename, const struct timeval times[2]) 1095MODULE = IO::AIO PACKAGE = IO::AIO
885{
886 if (times)
887 {
888 struct utimbuf buf;
889 1096
890 buf.actime = times[0].tv_sec; 1097PROTOTYPES: ENABLE
891 buf.modtime = times[1].tv_sec;
892 1098
893 return utime (filename, &buf); 1099BOOT:
894 }
895 else
896 return utime (filename, 0);
897}
898
899int aio_futimes (int fd, const struct timeval tv[2])
900{ 1100{
901 errno = ENOSYS; 1101 static const struct {
902 return -1; 1102 const char *name;
903} 1103 IV iv;
1104 } *civ, const_iv[] = {
1105# define const_niv(name, value) { # name, (IV) value },
1106# define const_iv(name) { # name, (IV) name },
1107# define const_eio(name) { # name, (IV) EIO_ ## name },
904 1108
905#endif 1109 /* you have to re-run ./gendef0 after adding/removing any constants here */
1110 /* the first block can be undef if missing */
1111 const_iv (ENOSYS)
1112 const_iv (EXDEV)
1113 const_iv (EBADR)
906 1114
907#if !HAVE_FDATASYNC 1115 /* for lseek */
908# define fdatasync fsync 1116 const_iv (SEEK_DATA)
909#endif 1117 const_iv (SEEK_HOLE)
910 1118
911#if !HAVE_READAHEAD 1119 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 1120 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1121 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1122 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1123 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1124 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
913 1125
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1126 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
915{ 1127 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
916 size_t todo = count; 1128 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
917 dBUF; 1129 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1130 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
918 1131
919 while (todo > 0) 1132 /* the second block will be 0 when missing */
920 { 1133 const_iv (O_ACCMODE)
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922 1134
923 pread (fd, aio_buf, len, offset); 1135 const_iv (O_RDONLY)
924 offset += len; 1136 const_iv (O_WRONLY)
925 todo -= len; 1137 const_iv (O_RDWR)
926 } 1138 const_iv (O_CREAT)
1139 const_iv (O_TRUNC)
1140 const_iv (O_EXCL)
1141 const_iv (O_APPEND)
927 1142
928 errno = 0; 1143 const_iv (O_ASYNC)
929 return count; 1144 const_iv (O_DIRECT)
930} 1145 const_iv (O_NOATIME)
931 1146
932#endif 1147 const_iv (O_CLOEXEC)
1148 const_iv (O_NOCTTY)
1149 const_iv (O_NOFOLLOW)
1150 const_iv (O_NONBLOCK)
1151 const_iv (O_EXEC)
1152 const_iv (O_SEARCH)
1153 const_iv (O_DIRECTORY)
1154 const_iv (O_DSYNC)
1155 const_iv (O_RSYNC)
1156 const_iv (O_SYNC)
1157 const_iv (O_PATH)
1158 const_iv (O_TMPFILE)
1159 const_iv (O_TTY_INIT)
933 1160
934#if !HAVE_READDIR_R 1161 const_iv (S_IFIFO)
935# define readdir_r aio_readdir_r 1162 const_iv (S_IFCHR)
1163 const_iv (S_IFBLK)
1164 const_iv (S_IFLNK)
1165 const_iv (S_IFREG)
1166 const_iv (S_IFDIR)
1167 const_iv (S_IFWHT)
1168 const_iv (S_IFSOCK)
1169 const_iv (S_IFMT)
936 1170
937static mutex_t readdirlock = X_MUTEX_INIT; 1171 const_iv (ST_RDONLY)
938 1172 const_iv (ST_NOSUID)
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) 1173 const_iv (ST_NODEV)
940{ 1174 const_iv (ST_NOEXEC)
941 X_DIRENT *e; 1175 const_iv (ST_SYNCHRONOUS)
942 int errorno; 1176 const_iv (ST_MANDLOCK)
1177 const_iv (ST_WRITE)
1178 const_iv (ST_APPEND)
1179 const_iv (ST_IMMUTABLE)
1180 const_iv (ST_NOATIME)
1181 const_iv (ST_NODIRATIME)
1182 const_iv (ST_RELATIME)
943 1183
944 X_LOCK (readdirlock); 1184 const_iv (PROT_NONE)
1185 const_iv (PROT_EXEC)
1186 const_iv (PROT_READ)
1187 const_iv (PROT_WRITE)
945 1188
946 e = readdir (dirp); 1189 const_iv (MAP_PRIVATE)
947 errorno = errno; 1190 const_iv (MAP_SHARED)
1191 const_iv (MAP_FIXED)
1192 const_iv (MAP_ANONYMOUS)
948 1193
949 if (e) 1194 /* linuxish */
950 { 1195 const_iv (MAP_LOCKED)
951 *res = ent; 1196 const_iv (MAP_NORESERVE)
952 strcpy (ent->d_name, e->d_name); 1197 const_iv (MAP_POPULATE)
953 } 1198 const_iv (MAP_NONBLOCK)
954 else 1199 const_iv (MAP_GROWSDOWN)
955 *res = 0; 1200 const_iv (MAP_32BIT)
1201 const_iv (MAP_HUGETLB)
1202 const_iv (MAP_STACK)
956 1203
957 X_UNLOCK (readdirlock); 1204 const_iv (MREMAP_MAYMOVE)
1205 const_iv (MREMAP_FIXED)
958 1206
959 errno = errorno; 1207 const_iv (MSG_CMSG_CLOEXEC)
960 return e ? 0 : -1; 1208 const_iv (SOCK_CLOEXEC)
961}
962#endif
963 1209
964/* sendfile always needs emulation */ 1210 const_iv (F_DUPFD_CLOEXEC)
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
966{
967 ssize_t res;
968 1211
969 if (!count) 1212 const_iv (F_ADD_SEALS)
970 return 0; 1213 const_iv (F_GET_SEALS)
1214 const_iv (F_SEAL_SEAL)
1215 const_iv (F_SEAL_SHRINK)
1216 const_iv (F_SEAL_GROW)
1217 const_iv (F_SEAL_WRITE)
971 1218
972#if HAVE_SENDFILE 1219 const_iv (F_OFD_GETLK)
973# if __linux 1220 const_iv (F_OFD_SETLK)
974 res = sendfile (ofd, ifd, &offset, count); 1221 const_iv (F_OFD_GETLKW)
975 1222
976# elif __freebsd 1223 const_iv (FIFREEZE)
977 /* 1224 const_iv (FITHAW)
978 * Of course, the freebsd sendfile is a dire hack with no thoughts 1225 const_iv (FITRIM)
979 * wasted on making it similar to other I/O functions. 1226 const_iv (FICLONE)
980 */ 1227 const_iv (FICLONERANGE)
1228 const_iv (FIDEDUPERANGE)
1229
1230 const_iv (FS_IOC_GETFLAGS)
1231 const_iv (FS_IOC_SETFLAGS)
1232 const_iv (FS_IOC_GETVERSION)
1233 const_iv (FS_IOC_SETVERSION)
1234 const_iv (FS_IOC_FIEMAP)
1235 const_iv (FS_IOC_FSGETXATTR)
1236 const_iv (FS_IOC_FSSETXATTR)
1237 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1238 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1239 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1240
1241 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1242
1243 const_iv (FS_SECRM_FL)
1244 const_iv (FS_UNRM_FL)
1245 const_iv (FS_COMPR_FL)
1246 const_iv (FS_SYNC_FL)
1247 const_iv (FS_IMMUTABLE_FL)
1248 const_iv (FS_APPEND_FL)
1249 const_iv (FS_NODUMP_FL)
1250 const_iv (FS_NOATIME_FL)
1251 const_iv (FS_DIRTY_FL)
1252 const_iv (FS_COMPRBLK_FL)
1253 const_iv (FS_NOCOMP_FL)
1254 const_iv (FS_ENCRYPT_FL)
1255 const_iv (FS_BTREE_FL)
1256 const_iv (FS_INDEX_FL)
1257 const_iv (FS_JOURNAL_DATA_FL)
1258 const_iv (FS_NOTAIL_FL)
1259 const_iv (FS_DIRSYNC_FL)
1260 const_iv (FS_TOPDIR_FL)
1261 const_iv (FS_FL_USER_MODIFIABLE)
1262
1263 const_iv (FS_XFLAG_REALTIME)
1264 const_iv (FS_XFLAG_PREALLOC)
1265 const_iv (FS_XFLAG_IMMUTABLE)
1266 const_iv (FS_XFLAG_APPEND)
1267 const_iv (FS_XFLAG_SYNC)
1268 const_iv (FS_XFLAG_NOATIME)
1269 const_iv (FS_XFLAG_NODUMP)
1270 const_iv (FS_XFLAG_RTINHERIT)
1271 const_iv (FS_XFLAG_PROJINHERIT)
1272 const_iv (FS_XFLAG_NOSYMLINKS)
1273 const_iv (FS_XFLAG_EXTSIZE)
1274 const_iv (FS_XFLAG_EXTSZINHERIT)
1275 const_iv (FS_XFLAG_NODEFRAG)
1276 const_iv (FS_XFLAG_FILESTREAM)
1277 const_iv (FS_XFLAG_DAX)
1278 const_iv (FS_XFLAG_HASATTR)
1279
1280 const_iv (FIEMAP_FLAG_SYNC)
1281 const_iv (FIEMAP_FLAG_XATTR)
1282 const_iv (FIEMAP_FLAGS_COMPAT)
1283 const_iv (FIEMAP_EXTENT_LAST)
1284 const_iv (FIEMAP_EXTENT_UNKNOWN)
1285 const_iv (FIEMAP_EXTENT_DELALLOC)
1286 const_iv (FIEMAP_EXTENT_ENCODED)
1287 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1288 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1289 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1290 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1291 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1292 const_iv (FIEMAP_EXTENT_MERGED)
1293 const_iv (FIEMAP_EXTENT_SHARED)
1294
1295 const_iv (SPLICE_F_MOVE)
1296 const_iv (SPLICE_F_NONBLOCK)
1297 const_iv (SPLICE_F_MORE)
1298 const_iv (SPLICE_F_GIFT)
1299
1300 const_iv (EFD_CLOEXEC)
1301 const_iv (EFD_NONBLOCK)
1302 const_iv (EFD_SEMAPHORE)
1303
1304 const_iv (MFD_CLOEXEC)
1305 const_iv (MFD_ALLOW_SEALING)
1306 const_iv (MFD_HUGETLB)
1307
1308 const_iv (CLOCK_REALTIME)
1309 const_iv (CLOCK_MONOTONIC)
1310 const_iv (CLOCK_BOOTTIME)
1311 const_iv (CLOCK_REALTIME_ALARM)
1312 const_iv (CLOCK_BOOTTIME_ALARM)
1313
1314 const_iv (TFD_NONBLOCK)
1315 const_iv (TFD_CLOEXEC)
1316
1317 const_iv (TFD_TIMER_ABSTIME)
1318 const_iv (TFD_TIMER_CANCEL_ON_SET)
1319
1320 const_iv (STATX_TYPE)
1321 const_iv (STATX_MODE)
1322 const_iv (STATX_NLINK)
1323 const_iv (STATX_UID)
1324 const_iv (STATX_GID)
1325 const_iv (STATX_ATIME)
1326 const_iv (STATX_MTIME)
1327 const_iv (STATX_CTIME)
1328 const_iv (STATX_INO)
1329 const_iv (STATX_SIZE)
1330 const_iv (STATX_BLOCKS)
1331 const_iv (STATX_BASIC_STATS)
1332 const_iv (STATX_ALL)
1333 const_iv (STATX_BTIME)
1334 const_iv (STATX_ATTR_COMPRESSED)
1335 const_iv (STATX_ATTR_IMMUTABLE)
1336 const_iv (STATX_ATTR_APPEND)
1337 const_iv (STATX_ATTR_NODUMP)
1338 const_iv (STATX_ATTR_ENCRYPTED)
1339 const_iv (STATX_ATTR_AUTOMOUNT)
1340
1341 const_iv (AT_FDCWD)
1342 const_iv (AT_SYMLINK_NOFOLLOW)
1343 const_iv (AT_EACCESS)
1344 const_iv (AT_REMOVEDIR)
1345 const_iv (AT_SYMLINK_FOLLOW)
1346 const_iv (AT_NO_AUTOMOUNT)
1347 const_iv (AT_EMPTY_PATH)
1348 const_iv (AT_STATX_SYNC_TYPE)
1349 const_iv (AT_STATX_AS_STAT)
1350 const_iv (AT_STATX_FORCE_SYNC)
1351 const_iv (AT_STATX_DONT_SYNC)
1352 const_iv (AT_RECURSIVE)
1353
1354 const_iv (OPEN_TREE_CLONE)
1355
1356 const_iv (FSOPEN_CLOEXEC)
1357
1358 const_iv (FSPICK_CLOEXEC)
1359 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1360 const_iv (FSPICK_NO_AUTOMOUNT)
1361 const_iv (FSPICK_EMPTY_PATH)
1362
1363 const_iv (MOVE_MOUNT_F_SYMLINKS)
1364 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1365 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1366 const_iv (MOVE_MOUNT_T_SYMLINKS)
1367 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1368 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1369
1370 /* waitid */
1371 const_iv (P_PID)
1372 const_iv (P_PIDFD)
1373 const_iv (P_PGID)
1374 const_iv (P_ALL)
1375
1376 /* these are libeio constants, and are independent of gendef0 */
1377 const_eio (SEEK_SET)
1378 const_eio (SEEK_CUR)
1379 const_eio (SEEK_END)
1380
1381 const_eio (MCL_FUTURE)
1382 const_eio (MCL_CURRENT)
1383 const_eio (MCL_ONFAULT)
1384
1385 const_eio (MS_ASYNC)
1386 const_eio (MS_INVALIDATE)
1387 const_eio (MS_SYNC)
1388
1389 const_eio (MT_MODIFY)
1390
1391 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1392 const_eio (SYNC_FILE_RANGE_WRITE)
1393 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1394
1395 const_eio (FALLOC_FL_KEEP_SIZE)
1396 const_eio (FALLOC_FL_PUNCH_HOLE)
1397 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1398 const_eio (FALLOC_FL_ZERO_RANGE)
1399 const_eio (FALLOC_FL_INSERT_RANGE)
1400 const_eio (FALLOC_FL_UNSHARE_RANGE)
1401
1402 const_eio (RENAME_NOREPLACE)
1403 const_eio (RENAME_EXCHANGE)
1404 const_eio (RENAME_WHITEOUT)
1405
1406 const_eio (READDIR_DENTS)
1407 const_eio (READDIR_DIRS_FIRST)
1408 const_eio (READDIR_STAT_ORDER)
1409 const_eio (READDIR_FOUND_UNKNOWN)
1410
1411 const_eio (DT_UNKNOWN)
1412 const_eio (DT_FIFO)
1413 const_eio (DT_CHR)
1414 const_eio (DT_DIR)
1415 const_eio (DT_BLK)
1416 const_eio (DT_REG)
1417 const_eio (DT_LNK)
1418 const_eio (DT_SOCK)
1419 const_eio (DT_WHT)
1420 };
1421
1422 aio_stash = gv_stashpv ("IO::AIO" , 1);
1423 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1424 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1425 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1426
1427 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1428 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1429
1430 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1431
1432 /* allocate dummy pipe fd for aio_close */
981 { 1433 {
982 off_t sbytes; 1434 int pipefd [2];
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984 1435
985 if (res < 0 && sbytes) 1436 if (
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1437#ifdef _WIN32
987 res = sbytes; 1438 _pipe (pipefd, 1, _O_BINARY) < 0
1439#else
1440 pipe (pipefd) < 0
1441 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1442#endif
1443 || close (pipefd [1]) < 0
1444 )
1445 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1446
1447 close_fd = pipefd [0];
988 } 1448 }
989 1449
990# elif __hpux 1450 reinit ();
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014
1015 if (res < 0
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1017#if __solaris
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1019#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025
1026 res = 0;
1027
1028 while (count)
1029 {
1030 ssize_t cnt;
1031
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1033
1034 if (cnt <= 0)
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039
1040 cnt = write (ofd, aio_buf, cnt);
1041
1042 if (cnt <= 0)
1043 {
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047
1048 offset += cnt;
1049 res += cnt;
1050 count -= cnt;
1051 }
1052 }
1053
1054 return res;
1055} 1451}
1056 1452
1057/* read a full directory */
1058static void scandir_ (aio_req req, worker *self)
1059{
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116}
1117
1118/*****************************************************************************/
1119
1120X_THREAD_PROC (aio_proc)
1121{
1122 {//D
1123 aio_req req;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355}
1356
1357#define dREQ \
1358 aio_req req; \
1359 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \
1361 \
1362 if (SvOK (callback) && !SvROK (callback)) \
1363 croak ("callback must be undef or of reference type"); \
1364 \
1365 Newz (0, req, 1, aio_cb); \
1366 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \
1368 \
1369 req->callback = newSVsv (callback); \
1370 req->pri = req_pri
1371
1372#define REQ_SEND \
1373 req_send (req); \
1374 \
1375 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1377
1378MODULE = IO::AIO PACKAGE = IO::AIO
1379
1380PROTOTYPES: ENABLE
1381
1382BOOT:
1383{
1384 HV *stash = gv_stashpv ("IO::AIO", 1);
1385
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402
1403 if (!create_pipe (respipe))
1404 croak ("cannot set result pipe to nonblocking mode");
1405
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1407}
1408
1409void 1453void
1454reinit ()
1455 PROTOTYPE:
1456
1457void
1410max_poll_reqs (int nreqs) 1458max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1459 PROTOTYPE: $
1412 CODE: 1460 CODE:
1413 max_poll_reqs = nreqs; 1461 eio_set_max_poll_reqs (nreqs);
1414 1462
1415void 1463void
1416max_poll_time (double nseconds) 1464max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1465 PROTOTYPE: $
1418 CODE: 1466 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1467 eio_set_max_poll_time (nseconds);
1420 1468
1421void 1469void
1422min_parallel (int nthreads) 1470min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1471 PROTOTYPE: $
1432 CODE: 1472 CODE:
1433 set_max_idle (nthreads); 1473 eio_set_min_parallel (nthreads);
1434 1474
1435int 1475void
1436max_outstanding (int maxreqs) 1476max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1477 PROTOTYPE: $
1438 CODE: 1478 CODE:
1439 RETVAL = max_outstanding; 1479 eio_set_max_parallel (nthreads);
1480
1481void
1482max_idle (unsigned int nthreads)
1483 PROTOTYPE: $
1484 CODE:
1485 eio_set_max_idle (nthreads);
1486
1487void
1488idle_timeout (unsigned int seconds)
1489 PROTOTYPE: $
1490 CODE:
1491 eio_set_idle_timeout (seconds);
1492
1493void
1494max_outstanding (unsigned int maxreqs)
1495 PROTOTYPE: $
1496 CODE:
1440 max_outstanding = maxreqs; 1497 max_outstanding = maxreqs;
1441 OUTPUT:
1442 RETVAL
1443 1498
1444void 1499void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1500aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1501 PPCODE:
1448{ 1502{
1449 dREQ; 1503 dREQ;
1450 1504
1505 req->type = EIO_WD_OPEN;
1506 req_set_path1 (req, pathname);
1507
1508 REQ_SEND;
1509}
1510
1511void
1512aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1513 PPCODE:
1514{
1515 dREQ;
1516
1451 req->type = REQ_OPEN; 1517 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1518 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1519 req->int1 = flags;
1455 req->mode = mode; 1520 req->int2 = mode;
1456 1521
1457 REQ_SEND; 1522 REQ_SEND;
1458} 1523}
1459 1524
1460void 1525void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1526aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1527 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1528 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1529 aio_fdatasync = EIO_FDATASYNC
1530 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1531 PPCODE:
1468{ 1532{
1533 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1534 dREQ;
1470 1535
1471 req->type = ix; 1536 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1537 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1538 req->int1 = fd;
1474 1539
1475 REQ_SEND (req); 1540 REQ_SEND;
1476} 1541}
1477 1542
1478void 1543void
1544aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1545 PPCODE:
1546{
1547 int fd = s_fileno_croak (fh, 0);
1548 dREQ;
1549
1550 req->type = EIO_SYNC_FILE_RANGE;
1551 req->sv1 = newSVsv (fh);
1552 req->int1 = fd;
1553 req->offs = offset;
1554 req->size = nbytes;
1555 req->int2 = flags;
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1562 PPCODE:
1563{
1564 int fd = s_fileno_croak (fh, 0);
1565 dREQ;
1566
1567 req->type = EIO_FALLOCATE;
1568 req->sv1 = newSVsv (fh);
1569 req->int1 = fd;
1570 req->int2 = mode;
1571 req->offs = offset;
1572 req->size = len;
1573
1574 REQ_SEND;
1575}
1576
1577void
1578aio_close (SV *fh, SV *callback = &PL_sv_undef)
1579 PPCODE:
1580{
1581 int fd = s_fileno_croak (fh, 0);
1582 dREQ;
1583#if 0
1584 /* partially duplicate logic in s_fileno */
1585 SvGETMAGIC (fh);
1586
1587 if (SvROK (fh))
1588 {
1589 fh = SvRV (fh);
1590 SvGETMAGIC (fh);
1591 }
1592
1593 if (SvTYPE (fh) == SVt_PVGV)
1594 {
1595 /* perl filehandle */
1596 PerlIOUnix_refcnt_inc (fd);
1597 do_close ((GV *)fh, 1);
1598
1599 req->type = EIO_CLOSE;
1600 req->int1 = fd;
1601 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1602 }
1603 else
1604#endif
1605 {
1606 /* fd number */
1607 req->type = EIO_DUP2;
1608 req->int1 = close_fd;
1609 req->sv2 = newSVsv (fh);
1610 req->int2 = fd;
1611 }
1612
1613 REQ_SEND;
1614}
1615
1616void
1617aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1618 PPCODE:
1619{
1620 int fd = s_fileno_croak (fh, 0);
1621 dREQ;
1622
1623 req->type = EIO_SEEK;
1624 req->sv1 = newSVsv (fh);
1625 req->int1 = fd;
1626 req->offs = SvVAL64 (offset);
1627 req->int2 = whence;
1628
1629 REQ_SEND;
1630}
1631
1632void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1633aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1480 ALIAS: 1634 ALIAS:
1481 aio_read = REQ_READ 1635 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1636 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1637 PPCODE:
1485{ 1638{
1486 STRLEN svlen; 1639 STRLEN svlen;
1640 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1641 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1642 UV len = SvUV (length);
1489 1643
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1644 if (dataoffset < 0)
1494 dataoffset += svlen; 1645 dataoffset += svlen;
1495 1646
1496 if (dataoffset < 0 || dataoffset > svlen) 1647 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1648 croak ("dataoffset outside of data scalar");
1498 1649
1499 if (ix == REQ_WRITE) 1650 if (ix == EIO_WRITE)
1500 { 1651 {
1501 /* write: check length and adjust. */ 1652 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1653 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1654 len = svlen - dataoffset;
1504 } 1655 }
1505 else 1656 else
1506 { 1657 {
1507 /* read: grow scalar as necessary */ 1658 /* read: check type and grow scalar as necessary */
1659 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1508 svptr = SvGROW (data, len + dataoffset + 1); 1660 svptr = sv_grow (data, len + dataoffset + 1);
1661 else if (SvCUR (data) < len + dataoffset)
1662 croak ("length + dataoffset outside of scalar, and cannot grow");
1509 } 1663 }
1510
1511 if (len < 0)
1512 croak ("length must not be negative");
1513 1664
1514 { 1665 {
1515 dREQ; 1666 dREQ;
1516 1667
1517 req->type = ix; 1668 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1669 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1670 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1671 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1672 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1673 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1674 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1675 req->stroffset = dataoffset;
1526 1676
1527 if (!SvREADONLY (data)) 1677 if (!SvREADONLY (data))
1528 { 1678 {
1529 SvREADONLY_on (data); 1679 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1683 REQ_SEND;
1534 } 1684 }
1535} 1685}
1536 1686
1537void 1687void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1688aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1539 PROTOTYPE: $$;$ 1689 ALIAS:
1690 aio_ioctl = EIO_IOCTL
1691 aio_fcntl = EIO_FCNTL
1540 PPCODE: 1692 PPCODE:
1541{ 1693{
1542 SV *data; 1694 int fd = s_fileno_croak (fh, 0);
1543 dREQ; 1695 char *svptr;
1544 1696
1545 data = newSV (NAME_MAX); 1697 if (SvPOK (arg) || !SvNIOK (arg))
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK;
1549 req->sv1 = newSVsv (path);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553
1554 REQ_SEND;
1555}
1556
1557void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE:
1561{
1562 dREQ;
1563
1564 req->type = REQ_SENDFILE;
1565 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1567 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1569 req->offs = SvVAL64 (in_offset);
1570 req->size = length;
1571
1572 REQ_SEND;
1573}
1574
1575void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE:
1579{
1580 dREQ;
1581
1582 req->type = REQ_READAHEAD;
1583 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1585 req->offs = SvVAL64 (offset);
1586 req->size = length;
1587
1588 REQ_SEND;
1589}
1590
1591void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS:
1594 aio_stat = REQ_STAT
1595 aio_lstat = REQ_LSTAT
1596 PPCODE:
1597{
1598 dREQ;
1599
1600 req->ptr2 = malloc (sizeof (Stat_t));
1601 if (!req->ptr2)
1602 { 1698 {
1603 req_destroy (req); 1699 STRLEN svlen;
1604 croak ("out of memory during aio_stat statdata allocation"); 1700 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1605 } 1701#ifdef IOCPARM_LEN
1702 STRLEN need = IOCPARM_LEN (request);
1703#else
1704 STRLEN need = 256;
1705#endif
1606 1706
1607 req->flags |= FLAG_PTR2_FREE; 1707 if (svlen < need)
1608 req->sv1 = newSVsv (fh_or_path); 1708 svptr = SvGROW (arg, need);
1609
1610 if (SvPOK (fh_or_path))
1611 {
1612 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 } 1709 }
1615 else 1710 else
1711 svptr = (char *)SvIV (arg);
1712
1616 { 1713 {
1714 dREQ;
1715
1617 req->type = REQ_FSTAT; 1716 req->type = ix;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1717 req->sv1 = newSVsv (fh);
1718 req->int1 = fd;
1719 req->int2 = (long)request;
1720 req->sv2 = SvREFCNT_inc (arg);
1721 req->ptr2 = svptr;
1722
1723 REQ_SEND;
1619 } 1724 }
1725}
1726
1727void
1728aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1729 ALIAS:
1730 aio_readlink = EIO_READLINK
1731 aio_realpath = EIO_REALPATH
1732 PPCODE:
1733{
1734 dREQ;
1735
1736 req->type = ix;
1737 req_set_path1 (req, pathname);
1620 1738
1621 REQ_SEND; 1739 REQ_SEND;
1622} 1740}
1623 1741
1624void 1742void
1743aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1744 PPCODE:
1745{
1746 int ifd = s_fileno_croak (in_fh , 0);
1747 int ofd = s_fileno_croak (out_fh, 1);
1748 dREQ;
1749
1750 req->type = EIO_SENDFILE;
1751 req->sv1 = newSVsv (out_fh);
1752 req->int1 = ofd;
1753 req->sv2 = newSVsv (in_fh);
1754 req->int2 = ifd;
1755 req->offs = in_offset;
1756 req->size = length;
1757
1758 REQ_SEND;
1759}
1760
1761void
1762aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1763 PPCODE:
1764{
1765 int fd = s_fileno_croak (fh, 0);
1766 dREQ;
1767
1768 req->type = EIO_READAHEAD;
1769 req->sv1 = newSVsv (fh);
1770 req->int1 = fd;
1771 req->offs = offset;
1772 req->size = length;
1773
1774 REQ_SEND;
1775}
1776
1777void
1778aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1779 ALIAS:
1780 aio_stat = EIO_STAT
1781 aio_lstat = EIO_LSTAT
1782 aio_statvfs = EIO_STATVFS
1783 PPCODE:
1784{
1785 dREQ;
1786
1787 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1788
1789 REQ_SEND;
1790}
1791
1792void
1793st_xtime ()
1794 ALIAS:
1795 st_atime = 0x01
1796 st_mtime = 0x02
1797 st_ctime = 0x04
1798 st_btime = 0x08
1799 st_xtime = 0x0f
1800 PPCODE:
1801 EXTEND (SP, 4);
1802 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1803 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1804 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1805 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1806
1807void
1808st_xtimensec ()
1809 ALIAS:
1810 st_atimensec = 0x01
1811 st_mtimensec = 0x02
1812 st_ctimensec = 0x04
1813 st_btimensec = 0x08
1814 st_xtimensec = 0x0f
1815 st_btimesec = 0x10
1816 st_gen = 0x20
1817 PPCODE:
1818 EXTEND (SP, 4);
1819 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1820 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1821 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1822 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1823 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1824 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1825
1826UV
1827major (UV dev)
1828 ALIAS:
1829 minor = 1
1830 CODE:
1831 RETVAL = ix ? minor (dev) : major (dev);
1832 OUTPUT:
1833 RETVAL
1834
1835UV
1836makedev (UV maj, UV min)
1837 CODE:
1838 RETVAL = makedev (maj, min);
1839 OUTPUT:
1840 RETVAL
1841
1842void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1843aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1626 PPCODE: 1844 PPCODE:
1627{ 1845{
1628 dREQ; 1846 dREQ;
1629 1847
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1848 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1849 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1850 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1633
1634 if (SvPOK (fh_or_path))
1635 {
1636 req->type = REQ_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 }
1639 else
1640 {
1641 req->type = REQ_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 }
1644 1851
1645 REQ_SEND; 1852 REQ_SEND;
1646} 1853}
1647 1854
1648void 1855void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1856aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1650 PPCODE: 1857 PPCODE:
1651{ 1858{
1652 dREQ; 1859 dREQ;
1653 1860
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1861 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1862 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1657 if (SvPOK (fh_or_path))
1658 {
1659 req->type = REQ_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 }
1662 else
1663 {
1664 req->type = REQ_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 }
1667 1863
1668 REQ_SEND; 1864 REQ_SEND;
1669} 1865}
1670 1866
1671void 1867void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1868aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1673 PPCODE: 1869 PPCODE:
1674{ 1870{
1675 dREQ; 1871 dREQ;
1676 1872
1677 req->mode = mode; 1873 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1874 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1679
1680 if (SvPOK (fh_or_path))
1681 {
1682 req->type = REQ_CHMOD;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 }
1685 else
1686 {
1687 req->type = REQ_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 }
1690 1875
1691 REQ_SEND; 1876 REQ_SEND;
1692} 1877}
1693 1878
1694void 1879void
1695aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1880aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1696 PPCODE: 1881 PPCODE:
1697{ 1882{
1698 dREQ; 1883 dREQ;
1699 1884
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1885 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1886 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1887 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703
1704 if (SvPOK (fh_or_path))
1705 {
1706 req->type = REQ_CHOWN;
1707 req->ptr1 = SvPVbyte_nolen (req->sv1);
1708 }
1709 else
1710 {
1711 req->type = REQ_FCHOWN;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1713 }
1714 1888
1715 REQ_SEND; 1889 REQ_SEND;
1716} 1890}
1717 1891
1718void 1892void
1893aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1894 PPCODE:
1895{
1896 dREQ;
1897
1898 req->type = EIO_READDIR;
1899 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1900
1901 if (flags & EIO_READDIR_DENTS)
1902 req->int1 |= EIO_READDIR_CUSTOM2;
1903
1904 req_set_path1 (req, pathname);
1905
1906 REQ_SEND;
1907}
1908
1909void
1910aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1911 PPCODE:
1912{
1913 dREQ;
1914
1915 req->type = EIO_MKDIR;
1916 req->int2 = mode;
1917 req_set_path1 (req, pathname);
1918
1919 REQ_SEND;
1920}
1921
1922void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1923aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1720 ALIAS: 1924 ALIAS:
1721 aio_unlink = REQ_UNLINK 1925 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1926 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1927 aio_readdir = EIO_READDIR
1724 PPCODE: 1928 PPCODE:
1725{ 1929{
1726 dREQ; 1930 dREQ;
1727 1931
1728 req->type = ix; 1932 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 1933 req_set_path1 (req, pathname);
1730 req->ptr1 = SvPVbyte_nolen (req->sv1);
1731 1934
1732 REQ_SEND; 1935 REQ_SEND;
1733} 1936}
1734 1937
1735void 1938void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1737 PPCODE:
1738{
1739 dREQ;
1740
1741 req->type = REQ_MKDIR;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode;
1745
1746 REQ_SEND;
1747}
1748
1749void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1939aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1751 ALIAS: 1940 ALIAS:
1752 aio_link = REQ_LINK 1941 aio_link = EIO_LINK
1753 aio_symlink = REQ_SYMLINK 1942 aio_symlink = EIO_SYMLINK
1754 aio_rename = REQ_RENAME 1943 aio_rename = EIO_RENAME
1755 PPCODE: 1944 PPCODE:
1756{ 1945{
1946 eio_wd wd2 = 0;
1757 dREQ; 1947 dREQ;
1758 1948
1759 req->type = ix; 1949 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 1950 req_set_path1 (req, oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 1951 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1762 req->sv1 = newSVsv (newpath); 1952 req->int3 = (long)wd2;
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1953
1765 REQ_SEND; 1954 REQ_SEND;
1766} 1955}
1767 1956
1768void 1957void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1958aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1770 PPCODE: 1959 PPCODE:
1771{ 1960{
1961 eio_wd wd2 = 0;
1772 dREQ; 1962 dREQ;
1773 1963
1774 req->type = REQ_MKNOD; 1964 req->type = EIO_RENAME;
1775 req->sv1 = newSVsv (pathname); 1965 req_set_path1 (req, oldpath);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1); 1966 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1777 req->mode = (mode_t)mode; 1967 req->int2 = flags;
1778 req->offs = dev; 1968 req->int3 = (long)wd2;
1779 1969
1780 REQ_SEND; 1970 REQ_SEND;
1781} 1971}
1782 1972
1783void 1973void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1974aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1785 PPCODE: 1975 PPCODE:
1786{ 1976{
1787 dREQ; 1977 dREQ;
1978
1979 req->type = EIO_MKNOD;
1980 req->int2 = (mode_t)mode;
1981 req->offs = dev;
1982 req_set_path1 (req, pathname);
1983
1984 REQ_SEND;
1985}
1788 1986
1987void
1988aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1989 ALIAS:
1990 aio_mtouch = EIO_MTOUCH
1991 aio_msync = EIO_MSYNC
1992 PPCODE:
1993{
1994 STRLEN svlen;
1995 char *svptr = SvPVbyte (data, svlen);
1996 UV len = SvUV (length);
1997
1998 if (flags < 0)
1999 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2000
2001 if (offset < 0)
2002 offset += svlen;
2003
2004 if (offset < 0 || offset > svlen)
2005 croak ("offset outside of scalar");
2006
2007 if (!SvOK (length) || len + offset > svlen)
2008 len = svlen - offset;
2009
2010 {
2011 dREQ;
2012
2013 req->type = ix;
2014 req->sv2 = SvREFCNT_inc (data);
2015 req->ptr2 = (char *)svptr + offset;
2016 req->size = len;
2017 req->int1 = flags;
2018
2019 REQ_SEND;
2020 }
2021}
2022
2023void
2024aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2025 PPCODE:
2026{
2027 STRLEN svlen;
2028 char *svptr = SvPVbyte (data, svlen);
2029 UV len = SvUV (length);
2030
2031 if (offset < 0)
2032 offset += svlen;
2033
2034 if (offset < 0 || offset > svlen)
2035 croak ("offset outside of scalar");
2036
2037 if (!SvOK (length) || len + offset > svlen)
2038 len = svlen - offset;
2039
2040 {
2041 dREQ;
2042
2043 req->type = EIO_MLOCK;
2044 req->sv2 = SvREFCNT_inc (data);
2045 req->ptr2 = (char *)svptr + offset;
2046 req->size = len;
2047
2048 REQ_SEND;
2049 }
2050}
2051
2052void
2053aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2054 PPCODE:
2055{
2056 dREQ;
2057
2058 req->type = EIO_MLOCKALL;
2059 req->int1 = flags;
2060
2061 REQ_SEND;
2062}
2063
2064void
2065aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2066 PPCODE:
2067{
2068 int fd = s_fileno_croak (fh, 0);
2069 dREQ;
2070
2071 req->type = EIO_CUSTOM;
2072 req->sv1 = newSVsv (fh);
2073 req->int1 = fd;
2074
2075 req->feed = fiemap;
2076#if HAVE_FIEMAP
2077 /* keep our fingers crossed that the next two types are 64 bit */
2078 req->offs = start;
2079 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2080 req->int2 = flags;
2081 req->int3 = SvOK (count) ? SvIV (count) : -1;
2082#endif
2083
2084 REQ_SEND;
2085}
2086
2087void
2088aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2089 PPCODE:
2090{
2091 char *svptr = 0;
2092
2093 sv_clear_foreign (data);
2094
2095 if (length) /* known length, directly read into scalar */
2096 {
2097 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2098 svptr = sv_grow (data, length + 1);
2099 else if (SvCUR (data) < length)
2100 croak ("length outside of scalar, and cannot grow");
2101 else
2102 svptr = SvPVbyte_nolen (data);
2103 }
2104
2105 {
2106 dREQ;
2107
2108 req->type = EIO_SLURP;
2109 req_set_path1 (req, pathname);
2110 req->offs = offset;
2111 req->size = length;
2112 req->sv2 = SvREFCNT_inc (data);
2113 req->ptr2 = svptr;
2114
2115 if (!SvREADONLY (data))
2116 {
2117 SvREADONLY_on (data);
2118 req->flags |= FLAG_SV2_RO_OFF;
2119 }
2120
2121 REQ_SEND;
2122 }
2123}
2124
2125void
2126aio_busy (double delay, SV *callback = &PL_sv_undef)
2127 PPCODE:
2128{
2129 dREQ;
2130
1789 req->type = REQ_BUSY; 2131 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 2132 req->nv1 = delay < 0. ? 0. : delay;
1791 2133
1792 REQ_SEND; 2134 REQ_SEND;
1793} 2135}
1794 2136
1795void 2137void
1796aio_group (SV *callback=&PL_sv_undef) 2138aio_group (SV *callback = &PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 2139 PPCODE:
1799{ 2140{
1800 dREQ; 2141 dREQ;
1801 2142
1802 req->type = REQ_GROUP; 2143 req->type = EIO_GROUP;
1803 2144
2145 PUTBACK;
1804 req_send (req); 2146 req_submit (req);
2147 SPAGAIN;
2148
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2149 XPUSHs (req_sv (req, aio_grp_stash));
1806} 2150}
1807 2151
1808void 2152void
1809aio_nop (SV *callback=&PL_sv_undef) 2153aio_nop (SV *callback = &PL_sv_undef)
2154 ALIAS:
2155 aio_nop = EIO_NOP
2156 aio_sync = EIO_SYNC
1810 PPCODE: 2157 PPCODE:
1811{ 2158{
1812 dREQ; 2159 dREQ;
1813 2160
1814 req->type = REQ_NOP; 2161 req->type = ix;
1815 2162
1816 REQ_SEND; 2163 REQ_SEND;
1817} 2164}
1818 2165
1819int 2166int
1820aioreq_pri (int pri = 0) 2167aioreq_pri (int pri = NO_INIT)
1821 PROTOTYPE: ;$
1822 CODE: 2168 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 2169 RETVAL = next_pri;
1824 if (items > 0) 2170 if (items > 0)
1825 { 2171 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 2172 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 2173 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 2174 next_pri = pri;
1829 } 2175 }
1830 OUTPUT: 2176 OUTPUT:
1831 RETVAL 2177 RETVAL
1832 2178
1833void 2179void
1834aioreq_nice (int nice = 0) 2180aioreq_nice (int nice = 0)
1835 CODE: 2181 CODE:
1836 nice = next_pri - nice; 2182 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 2183 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 2184 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 2185 next_pri = nice;
1840 2186
1841void 2187void
1842flush () 2188flush ()
1843 PROTOTYPE:
1844 CODE: 2189 CODE:
1845 while (nreqs) 2190 while (eio_nreqs ())
1846 { 2191 {
1847 poll_wait (); 2192 poll_wait ();
1848 poll_cb (); 2193 poll_cb ();
1849 } 2194 }
1850 2195
1851int 2196int
1852poll() 2197poll ()
1853 PROTOTYPE:
1854 CODE: 2198 CODE:
1855 poll_wait (); 2199 poll_wait ();
1856 RETVAL = poll_cb (); 2200 RETVAL = poll_cb ();
1857 OUTPUT: 2201 OUTPUT:
1858 RETVAL 2202 RETVAL
1859 2203
1860int 2204int
1861poll_fileno() 2205poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 2206 CODE:
1864 RETVAL = respipe [0]; 2207 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 2208 OUTPUT:
1866 RETVAL 2209 RETVAL
1867 2210
1868int 2211int
1869poll_cb(...) 2212poll_cb (...)
1870 PROTOTYPE: 2213 PROTOTYPE:
1871 CODE: 2214 CODE:
1872 RETVAL = poll_cb (); 2215 RETVAL = poll_cb ();
1873 OUTPUT: 2216 OUTPUT:
1874 RETVAL 2217 RETVAL
1875 2218
1876void 2219void
1877poll_wait() 2220poll_wait ()
2221 CODE:
2222 poll_wait ();
2223
2224int
2225nreqs ()
2226 CODE:
2227 RETVAL = eio_nreqs ();
2228 OUTPUT:
2229 RETVAL
2230
2231int
2232nready ()
2233 CODE:
2234 RETVAL = eio_nready ();
2235 OUTPUT:
2236 RETVAL
2237
2238int
2239npending ()
2240 CODE:
2241 RETVAL = eio_npending ();
2242 OUTPUT:
2243 RETVAL
2244
2245int
2246nthreads ()
2247 CODE:
2248 RETVAL = eio_nthreads ();
2249 OUTPUT:
2250 RETVAL
2251
2252int
2253fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2254 CODE:
2255 RETVAL = posix_fadvise (fh, offset, length, advice);
2256 OUTPUT:
2257 RETVAL
2258
2259IV
2260sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2261 CODE:
2262 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2263 OUTPUT:
2264 RETVAL
2265
2266void
2267mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2268 PPCODE:
2269 sv_clear_foreign (scalar);
2270{
2271 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2272 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2273 if (addr == (void *)-1)
2274 XSRETURN_NO;
2275
2276 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2277
2278 if (!(prot & PROT_WRITE))
2279 SvREADONLY_on (scalar);
2280
2281 XSRETURN_YES;
2282}
2283
2284void
2285munmap (SV *scalar)
2286 CODE:
2287 sv_clear_foreign (scalar);
2288
2289SV *
2290mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2291 CODE:
2292{
2293 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2294 void *new;
2295
2296 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2297 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2298
2299 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2300
2301 RETVAL = &PL_sv_no;
2302
2303 if (new != (void *)-1)
2304 {
2305 RETVAL = new == (void *)mg->mg_ptr
2306 ? newSVpvn ("0 but true", 10)
2307 : &PL_sv_yes;
2308
2309 mg->mg_ptr = (char *)new;
2310 mg->mg_obj = (SV *)new_length;
2311
2312 SvPVX (scalar) = mg->mg_ptr;
2313 SvCUR_set (scalar, new_length);
2314 }
2315}
2316 OUTPUT:
2317 RETVAL
2318
2319int
2320madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2321 ALIAS:
2322 mprotect = 1
2323 CODE:
2324{
2325 STRLEN svlen;
2326 void *addr = SvPVbyte (scalar, svlen);
2327 STRLEN len = SvUV (length);
2328
2329 if (offset < 0)
2330 offset += svlen;
2331
2332 if (offset < 0 || offset > svlen)
2333 croak ("offset outside of scalar");
2334
2335 if (!SvOK (length) || len + offset > svlen)
2336 len = svlen - offset;
2337
2338 addr = (void *)(((intptr_t)addr) + offset);
2339 eio_page_align (&addr, &len);
2340
2341 switch (ix)
2342 {
2343 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2344 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2345 }
2346}
2347 OUTPUT:
2348 RETVAL
2349
2350int
2351munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2352 CODE:
2353{
2354 STRLEN svlen;
2355 void *addr = SvPVbyte (scalar, svlen);
2356 size_t len = SvUV (length);
2357
2358 if (offset < 0)
2359 offset += svlen;
2360
2361 if (offset < 0 || offset > svlen)
2362 croak ("offset outside of scalar");
2363
2364 if (!SvOK (length) || len + offset > svlen)
2365 len = svlen - offset;
2366
2367 addr = (void *)(((intptr_t)addr) + offset);
2368 eio_page_align (&addr, &len);
2369#if _POSIX_MEMLOCK_RANGE
2370 RETVAL = munlock (addr, len);
2371#else
2372 RETVAL = EIO_ENOSYS ();
2373#endif
2374}
2375 OUTPUT:
2376 RETVAL
2377
2378int
2379mlockall (int flags)
2380 PROTOTYPE: $;
2381 CODE:
2382 RETVAL = eio_mlockall_sync (flags);
2383 OUTPUT:
2384 RETVAL
2385
2386int
2387munlockall ()
2388 CODE:
2389#if _POSIX_MEMLOCK
2390 munlockall ();
2391#else
2392 RETVAL = EIO_ENOSYS ();
2393#endif
2394 OUTPUT:
2395 RETVAL
2396
2397int
2398statx (SV8 *pathname, int flags, UV mask)
2399 CODE:
2400{
2401 /* undocumented, and might go away, and anyway, should use eio_statx */
2402 SV *wdsv = 0;
2403 SV *pathsv = 0;
2404 eio_wd wd = EIO_CWD;
2405 void *ptr;
2406 int res;
2407
2408 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2409 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2410
2411 SvREFCNT_dec (pathsv);
2412 SvREFCNT_dec (wdsv);
2413}
2414 OUTPUT:
2415 RETVAL
2416
2417U32
2418stx_mode ()
1878 PROTOTYPE: 2419 PROTOTYPE:
1879 CODE: 2420 CODE:
1880 poll_wait (); 2421#if HAVE_STATX
2422 RETVAL = stx.stx_mode;
2423#else
2424 XSRETURN_UNDEF;
2425#endif
2426 OUTPUT:
2427 RETVAL
1881 2428
2429#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2430#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2431#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2432#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2433#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2434#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2435#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2436#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2437#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2438#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2439#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2440#define STATX_OFFSET_size statx_offsetof (stx_size)
2441#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2442#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2443#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2444#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2445#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2446#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2447
2448U32
2449stx_mask ()
2450 PROTOTYPE:
2451 ALIAS:
2452 stx_mask = STATX_OFFSET_mask
2453 stx_blksize = STATX_OFFSET_blksize
2454 stx_nlink = STATX_OFFSET_nlink
2455 stx_uid = STATX_OFFSET_uid
2456 stx_gid = STATX_OFFSET_gid
2457 stx_rdev_major = STATX_OFFSET_rdev_major
2458 stx_rdev_minor = STATX_OFFSET_rdev_minor
2459 stx_dev_major = STATX_OFFSET_dev_major
2460 stx_dev_minor = STATX_OFFSET_dev_minor
2461 CODE:
2462#if HAVE_STATX
2463 RETVAL = *(__u32 *)((char *)&stx + ix);
2464#else
2465 XSRETURN_UNDEF;
2466#endif
2467 OUTPUT:
2468 RETVAL
2469
2470VAL64
2471stx_attributes ()
2472 PROTOTYPE:
2473 ALIAS:
2474 stx_attributes = STATX_OFFSET_attributes
2475 stx_ino = STATX_OFFSET_ino
2476 stx_size = STATX_OFFSET_size
2477 stx_blocks = STATX_OFFSET_blocks
2478 stx_attributes_mask = STATX_OFFSET_attributes_mask
2479 CODE:
2480#if HAVE_STATX
2481 RETVAL = *(__u64 *)((char *)&stx + ix);
2482#else
2483 XSRETURN_UNDEF;
2484#endif
2485 OUTPUT:
2486 RETVAL
2487
2488NV
2489stx_atime ()
2490 PROTOTYPE:
2491 ALIAS:
2492 stx_atime = STATX_OFFSET_atime
2493 stx_btime = STATX_OFFSET_btime
2494 stx_ctime = STATX_OFFSET_ctime
2495 stx_mtime = STATX_OFFSET_mtime
2496 CODE:
2497#if HAVE_STATX
2498 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2499 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2500#else
2501 XSRETURN_UNDEF;
2502#endif
2503 OUTPUT:
2504 RETVAL
2505
2506VAL64
2507stx_atimesec ()
2508 PROTOTYPE:
2509 ALIAS:
2510 stx_atimesec = STATX_OFFSET_atime
2511 stx_btimesec = STATX_OFFSET_btime
2512 stx_ctimesec = STATX_OFFSET_ctime
2513 stx_mtimesec = STATX_OFFSET_mtime
2514 CODE:
2515#if HAVE_STATX
2516 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2517 RETVAL = ts->tv_sec;
2518#else
2519 XSRETURN_UNDEF;
2520#endif
2521 OUTPUT:
2522 RETVAL
2523
2524U32
2525stx_atimensec ()
2526 PROTOTYPE:
2527 ALIAS:
2528 stx_atimensec = STATX_OFFSET_atime
2529 stx_btimensec = STATX_OFFSET_btime
2530 stx_ctimensec = STATX_OFFSET_ctime
2531 stx_mtimensec = STATX_OFFSET_mtime
2532 CODE:
2533#if HAVE_STATX
2534 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2535 RETVAL = ts->tv_nsec;
2536#else
2537 RETVAL = 0;
2538#endif
2539 OUTPUT:
2540 RETVAL
2541
1882void 2542void
1883setsig (int signum = SIGIO) 2543accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2544 PPCODE:
2545{
2546 SV *retval;
2547#if HAVE_ACCEPT4
2548 socklen_t salen_ = salen ? salen + 1 : 0;
2549
2550 if (salen)
2551 {
2552 sv_upgrade (sockaddr, SVt_PV);
2553 sv_grow (sockaddr, salen_);
2554 }
2555
2556 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2557
2558 retval = newmortalFH (res, O_RDWR);
2559
2560 if (res >= 0 && salen > 0)
2561 {
2562 if (salen_ > salen + 1)
2563 salen_ = salen + 1;
2564
2565 SvPOK_only (sockaddr);
2566 SvCUR_set (sockaddr, salen_);
2567 }
2568#else
2569 errno = ENOSYS;
2570 retval = &PL_sv_undef;
2571#endif
2572 XPUSHs (retval);
2573}
2574
2575ssize_t
2576splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2577 CODE:
2578{
2579#if HAVE_LINUX_SPLICE
2580 loff_t off_in_, off_out_;
2581 RETVAL = splice (
2582 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2583 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2584 length, flags
2585 );
2586#else
2587 RETVAL = EIO_ENOSYS ();
2588#endif
2589}
2590 OUTPUT:
2591 RETVAL
2592
2593ssize_t
2594tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2595 CODE:
2596#if HAVE_LINUX_SPLICE
2597 RETVAL = tee (rfh, wfh, length, flags);
2598#else
2599 RETVAL = EIO_ENOSYS ();
2600#endif
2601 OUTPUT:
2602 RETVAL
2603
2604int
2605pipesize (aio_rfd rfh, int new_size = -1)
2606 PROTOTYPE: $;$
2607 CODE:
2608#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2609 if (new_size >= 0)
2610 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2611 else
2612 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2613#else
2614 errno = ENOSYS;
2615 RETVAL = -1;
2616#endif
2617 OUTPUT:
2618 RETVAL
2619
2620void
2621pipe2 (int flags = 0)
1884 PROTOTYPE: ;$ 2622 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE: 2623 PPCODE:
1903{ 2624{
1904 int count; 2625 int fd[2];
2626 int res;
1905 2627
1906 block_sig (); 2628 if (flags)
1907 PUSHMARK (SP); 2629#if HAVE_PIPE2
1908 PUTBACK; 2630 res = pipe2 (fd, flags);
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2631#else
1910 SPAGAIN; 2632 res = (errno = ENOSYS, -1);
1911 unblock_sig (); 2633#endif
2634 else
2635 res = pipe (fd);
1912 2636
1913 if (SvTRUE (ERRSV)) 2637 if (!res)
1914 croak (0); 2638 {
2639 EXTEND (SP, 2);
2640 PUSHs (newmortalFH (fd[0], O_RDONLY));
2641 PUSHs (newmortalFH (fd[1], O_WRONLY));
2642 }
2643}
1915 2644
1916 XSRETURN (count); 2645void
2646pidfd_open (int pid, unsigned int flags = 0)
2647 PPCODE:
2648{
2649 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2650 int fd = syscall (SYS_pidfd_open, pid, flags);
2651 XPUSHs (newmortalFH (fd, O_RDWR));
1917} 2652}
1918 2653
1919int 2654int
1920nreqs() 2655pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1921 PROTOTYPE: 2656 PPCODE:
2657{
2658 int res;
2659 siginfo_t si = { 0 };
2660
2661 if (SvOK (siginfo))
2662 {
2663 HV *hv;
2664 SV **svp;
2665
2666 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2667 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2668
2669 hv = (HV *)SvRV (siginfo);
2670
2671 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2672 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2673 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2674 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2675 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2676 }
2677
2678 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2679 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2680
2681 XPUSHs (sv_2mortal (newSViv (res)));
2682}
2683
2684void
2685pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2686 PPCODE:
2687{
2688 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2689 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2690 XPUSHs (newmortalFH (fd, O_RDWR));
2691}
2692
2693void
2694eventfd (unsigned int initval = 0, int flags = 0)
2695 PPCODE:
2696{
2697 int fd;
2698#if HAVE_EVENTFD
2699 fd = eventfd (initval, flags);
2700#else
2701 fd = (errno = ENOSYS, -1);
2702#endif
2703
2704 XPUSHs (newmortalFH (fd, O_RDWR));
2705}
2706
2707void
2708timerfd_create (int clockid, int flags = 0)
2709 PPCODE:
2710{
2711 int fd;
2712#if HAVE_TIMERFD
2713 fd = timerfd_create (clockid, flags);
2714#else
2715 fd = (errno = ENOSYS, -1);
2716#endif
2717
2718 XPUSHs (newmortalFH (fd, O_RDWR));
2719}
2720
2721void
2722timerfd_settime (SV *fh, int flags, NV interval, NV value)
2723 PPCODE:
2724{
2725 int fd = s_fileno_croak (fh, 0);
2726#if HAVE_TIMERFD
2727 int res;
2728 struct itimerspec its, ots;
2729
2730 ts_set (&its.it_interval, interval);
2731 ts_set (&its.it_value , value);
2732 res = timerfd_settime (fd, flags, &its, &ots);
2733
2734 if (!res)
2735 {
2736 EXTEND (SP, 2);
2737 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2738 PUSHs (newSVnv (ts_get (&ots.it_value)));
2739 }
2740#else
2741 errno = ENOSYS;
2742#endif
2743}
2744
2745void
2746timerfd_gettime (SV *fh)
2747 PPCODE:
2748{
2749 int fd = s_fileno_croak (fh, 0);
2750#if HAVE_TIMERFD
2751 int res;
2752 struct itimerspec ots;
2753 res = timerfd_gettime (fd, &ots);
2754
2755 if (!res)
2756 {
2757 EXTEND (SP, 2);
2758 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2759 PUSHs (newSVnv (ts_get (&ots.it_value)));
2760 }
2761#else
2762 errno = ENOSYS;
2763#endif
2764}
2765
2766void
2767memfd_create (SV8 *pathname, int flags = 0)
2768 PPCODE:
2769{
2770 int fd;
2771#if HAVE_MEMFD_CREATE
2772 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2773#else
2774 fd = (errno = ENOSYS, -1);
2775#endif
2776
2777 XPUSHs (newmortalFH (fd, O_RDWR));
2778}
2779
2780UV
2781get_fdlimit ()
1922 CODE: 2782 CODE:
1923 RETVAL = nreqs; 2783#if HAVE_RLIMITS
2784 struct rlimit rl;
2785 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2786 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2787#endif
2788 XSRETURN_UNDEF;
1924 OUTPUT: 2789 OUTPUT:
1925 RETVAL 2790 RETVAL
1926 2791
1927int 2792void
1928nready() 2793min_fdlimit (UV limit = 0x7fffffffU)
1929 PROTOTYPE:
1930 CODE: 2794 CODE:
1931 RETVAL = get_nready (); 2795{
1932 OUTPUT: 2796#if HAVE_RLIMITS
1933 RETVAL 2797 struct rlimit rl;
2798 rlim_t orig_rlim_max;
2799 UV bit;
1934 2800
1935int 2801 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1936npending() 2802 goto fail;
1937 PROTOTYPE: 2803
2804 if (rl.rlim_cur == RLIM_INFINITY)
2805 XSRETURN_YES;
2806
2807 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2808
2809 if (rl.rlim_cur < limit)
2810 {
2811 rl.rlim_cur = limit;
2812
2813 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2814 rl.rlim_max = rl.rlim_cur;
2815 }
2816
2817 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2818 XSRETURN_YES;
2819
2820 if (errno == EPERM)
2821 {
2822 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2823 /* our limit overflows a system-wide limit */
2824 /* try an adaptive algorithm, but do not lower the hardlimit */
2825 rl.rlim_max = 0;
2826 for (bit = 0x40000000U; bit; bit >>= 1)
2827 {
2828 rl.rlim_max |= bit;
2829 rl.rlim_cur = rl.rlim_max;
2830
2831 /* never decrease the hard limit */
2832 if (rl.rlim_max < orig_rlim_max)
2833 break;
2834
2835 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2836 rl.rlim_max &= ~bit; /* too high, remove bit again */
2837 }
2838
2839 /* now, raise the soft limit to the max permitted */
2840 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2841 {
2842 rl.rlim_cur = rl.rlim_max;
2843 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2844 errno = EPERM;
2845 }
2846 }
2847#endif
2848 fail:
2849 XSRETURN_UNDEF;
2850}
2851
2852void _on_next_submit (SV *cb)
1938 CODE: 2853 CODE:
1939 RETVAL = get_npending (); 2854 SvREFCNT_dec (on_next_submit);
1940 OUTPUT: 2855 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1941 RETVAL
1942 2856
1943int 2857PROTOTYPES: DISABLE
1944nthreads() 2858
1945 PROTOTYPE: 2859MODULE = IO::AIO PACKAGE = IO::AIO::WD
2860
2861BOOT:
2862{
2863 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2864 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2865}
2866
2867void
2868DESTROY (SV *self)
1946 CODE: 2869 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 2870{
1948 RETVAL = started; 2871 aio_wd wd = SvAIO_WD (self);
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock); 2872#if HAVE_AT
1950 OUTPUT: 2873 {
1951 RETVAL 2874 SV *callback = &PL_sv_undef;
1952 2875 dREQ; /* clobbers next_pri :/ */
1953PROTOTYPES: DISABLE 2876 next_pri = req->pri; /* restore next_pri */
2877 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2878 req->type = EIO_WD_CLOSE;
2879 req->wd = wd;
2880 REQ_SEND;
2881 }
2882#else
2883 eio_wd_close_sync (wd);
2884#endif
2885}
1954 2886
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2887MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 2888
1957void 2889void
1958cancel (aio_req_ornot req) 2890cancel (aio_req_ornot req)
1959 CODE: 2891 CODE:
1960 req_cancel (req); 2892 eio_cancel (req);
1961 2893
1962void 2894void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2895cb (aio_req_ornot req, SV *callback = NO_INIT)
1964 CODE: 2896 PPCODE:
2897{
2898 if (GIMME_V != G_VOID)
2899 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2900
2901 if (items > 1)
2902 {
2903 SV *cb_cv = get_cb (callback);
2904
1965 SvREFCNT_dec (req->callback); 2905 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 2906 req->callback = SvREFCNT_inc (cb_cv);
2907 }
2908}
1967 2909
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2910MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 2911
1970void 2912void
1971add (aio_req grp, ...) 2913add (aio_req grp, ...)
1972 PPCODE: 2914 PPCODE:
1973{ 2915{
1974 int i; 2916 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 2917
1980 if (grp->int1 == 2) 2918 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2919 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 2920
1983 for (i = 1; i < items; ++i ) 2921 for (i = 1; i < items; ++i )
1984 { 2922 {
2923 aio_req req;
2924
1985 if (GIMME_V != G_VOID) 2925 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2926 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 2927
1988 req = SvAIO_REQ (ST (i)); 2928 req = SvAIO_REQ (ST (i));
1989 2929
1990 if (req) 2930 if (req)
1991 { 2931 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 2932 }
2004} 2933}
2005 2934
2006void 2935void
2007cancel_subs (aio_req_ornot req) 2936cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 2945 AV *av;
2017 2946
2018 grp->errorno = errno; 2947 grp->errorno = errno;
2019 2948
2020 av = newAV (); 2949 av = newAV ();
2950 av_extend (av, items - 1);
2021 2951
2022 for (i = 1; i < items; ++i ) 2952 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 2953 av_push (av, newSVsv (ST (i)));
2024 2954
2025 SvREFCNT_dec (grp->sv1); 2955 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 2962 grp->errorno = errorno;
2033 2963
2034void 2964void
2035limit (aio_req grp, int limit) 2965limit (aio_req grp, int limit)
2036 CODE: 2966 CODE:
2037 grp->int2 = limit; 2967 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 2968
2040void 2969void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 2970feed (aio_req grp, SV *callback = &PL_sv_undef)
2042 CODE: 2971 CODE:
2043{ 2972{
2044 SvREFCNT_dec (grp->sv2); 2973 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 2974 grp->sv2 = newSVsv (callback);
2975 grp->feed = aio_grp_feed;
2046 2976
2047 if (grp->int2 <= 0) 2977 if (grp->int2 <= 0)
2048 grp->int2 = 2; 2978 grp->int2 = 2;
2049 2979
2050 aio_grp_feed (grp); 2980 eio_grp_limit (grp, grp->int2);
2051} 2981}
2052 2982

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