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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.102 by root, Sun Jun 3 09:44:17 2007 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 2018 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 8
9#include "autoconf/config.h" 9#include "schmorp.h"
10 10
11#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h> 12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
18#include <limits.h> 16#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 17#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 18#include <sched.h>
19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
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
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
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
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
86 #include <sys/time.h>
87 #include <sys/select.h>
88 #include <unistd.h>
23#include <utime.h> 89 #include <utime.h>
90 #include <signal.h>
24 91
25#if HAVE_SENDFILE 92 #define EIO_STRUCT_STAT Stat_t
26# if __linux 93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "libeio/config.h"
110
111#if HAVE_EVENTFD
27# include <sys/sendfile.h> 112# include <sys/eventfd.h>
28# elif __freebsd 113#endif
114
115#if HAVE_RLIMITS
116 #include <sys/time.h>
29# include <sys/socket.h> 117 #include <sys/resource.h>
30# include <sys/uio.h> 118#endif
31# elif __hpux 119
32# include <sys/socket.h> 120typedef SV SV8; /* byte-sv, used for argument-checking */
33# elif __solaris /* not yet */ 121typedef int aio_rfd; /* read file desriptor */
34# include <sys/sendfile.h> 122typedef int aio_wfd; /* write file descriptor */
123
124static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
125
126#define EIO_REQ_MEMBERS \
127 SV *callback; \
128 SV *sv1, *sv2; \
129 SV *sv3, *sv4; \
130 STRLEN stroffset; \
131 SV *self;
132
133#define EIO_NO_WRAPPERS 1
134
135#include "libeio/eio.h"
136
137static int req_invoke (eio_req *req);
138#define EIO_FINISH(req) req_invoke (req)
139static void req_destroy (eio_req *grp);
140#define EIO_DESTROY(req) req_destroy (req)
141
142#include "libeio/eio.c"
143
144#if !HAVE_POSIX_FADVISE
145# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#if !HAVE_POSIX_MADVISE
149# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#ifndef MAP_ANONYMOUS
153# ifdef MAP_ANON
154# define MAP_ANONYMOUS MAP_ANON
35# else 155# else
36# error sendfile support requested but not available 156# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 157# endif
38#endif 158#endif
39 159
40/* number of seconds after which idle threads exit */ 160/* defines all sorts of constants to 0 unless they are already defined */
41#define IDLE_TIMEOUT 10 161/* also provides const_iv_ and const_niv_ macros for them */
162#include "def0.h"
42 163
43/* used for struct dirent, AIX doesn't provide it */ 164#ifndef makedev
44#ifndef NAME_MAX 165# define makedev(maj,min) (((maj) << 8) | (min))
45# define NAME_MAX 4096
46#endif 166#endif
47 167#ifndef major
48/* buffer size for various temporary buffers */ 168# define major(dev) ((dev) >> 8)
49#define AIO_BUFSIZE 65536
50
51/* use NV for 32 bit perls as it allows larger offsets */
52#if IVSIZE >= 8
53# define SvVAL64 SvIV
54#else
55# define SvVAL64 SvNV
56#endif 169#endif
170#ifndef minor
171# define minor(dev) ((dev) & 0xff)
172#endif
57 173
58#define dBUF \ 174#if PAGESIZE <= 0
59 char *aio_buf; \ 175# define PAGESIZE sysconf (_SC_PAGESIZE)
60 LOCK (wrklock); \ 176#endif
61 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 177
62 UNLOCK (wrklock); \ 178/*****************************************************************************/
63 if (!aio_buf) \ 179
180#if !_POSIX_MAPPED_FILES
181# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
182# define munmap(addr,length) EIO_ENOSYS ()
183#endif
184
185#if !_POSIX_MEMORY_PROTECTION
186# define mprotect(addr,len,prot) EIO_ENOSYS ()
187#endif
188
189#define FOREIGN_MAGIC PERL_MAGIC_ext
190
191static int ecb_cold
192mmap_free (pTHX_ SV *sv, MAGIC *mg)
193{
194 int old_errno = errno;
195 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
196 errno = old_errno;
197
198 mg->mg_obj = 0; /* just in case */
199
200 SvREADONLY_off (sv);
201
202 if (SvPVX (sv) != mg->mg_ptr)
203 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
204
205 SvCUR_set (sv, 0);
206 SvPVX (sv) = 0;
207 SvOK_off (sv);
208
64 return -1; 209 return 0;
210}
65 211
66typedef SV SV8; /* byte-sv, used for argument-checking */ 212static MGVTBL mmap_vtbl = {
67 213 0, 0, 0, 0, mmap_free
68enum {
69 REQ_QUIT,
70 REQ_OPEN, REQ_CLOSE,
71 REQ_READ, REQ_WRITE,
72 REQ_READAHEAD, REQ_SENDFILE,
73 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
74 REQ_UTIME, REQ_FUTIME,
75 REQ_CHMOD, REQ_FCHMOD,
76 REQ_CHOWN, REQ_FCHOWN,
77 REQ_FSYNC, REQ_FDATASYNC,
78 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
79 REQ_MKNOD, REQ_READDIR,
80 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
81 REQ_GROUP, REQ_NOP,
82 REQ_BUSY,
83}; 214};
84 215
85#define AIO_REQ_KLASS "IO::AIO::REQ" 216static int ecb_cold
86#define AIO_GRP_KLASS "IO::AIO::GRP" 217sysfree_free (pTHX_ SV *sv, MAGIC *mg)
87
88typedef struct aio_cb
89{ 218{
90 struct aio_cb *volatile next; 219 free (mg->mg_ptr);
220 mg->mg_obj = 0; /* just in case */
91 221
92 SV *callback; 222 SvREADONLY_off (sv);
93 SV *sv1, *sv2;
94 void *ptr1, *ptr2;
95 off_t offs;
96 size_t size;
97 ssize_t result;
98 double nv1, nv2;
99 223
100 STRLEN stroffset; 224 if (SvPVX (sv) != mg->mg_ptr)
101 int type; 225 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
102 int int1, int2, int3;
103 int errorno;
104 mode_t mode; /* open */
105 226
106 unsigned char flags; 227 SvCUR_set (sv, 0);
107 unsigned char pri; 228 SvPVX (sv) = 0;
229 SvOK_off (sv);
108 230
109 SV *self; /* the perl counterpart of this request, if any */ 231 return 0;
110 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 232}
111} aio_cb;
112 233
113enum { 234static MGVTBL sysfree_vtbl = {
114 FLAG_CANCELLED = 0x01, /* request was cancelled */ 235 0, 0, 0, 0, sysfree_free
115 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
117}; 236};
118 237
119typedef aio_cb *aio_req; 238/*****************************************************************************/
120typedef aio_cb *aio_req_ornot;
121 239
122enum { 240/* helper: set scalar to foreign ptr with custom free */
123 PRI_MIN = -4, 241static void
124 PRI_MAX = 4, 242sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
125
126 DEFAULT_PRI = 0,
127 PRI_BIAS = -PRI_MIN,
128 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
129};
130
131#define AIO_TICKS ((1000000 + 1023) >> 10)
132
133static unsigned int max_poll_time = 0;
134static unsigned int max_poll_reqs = 0;
135
136/* calculcate time difference in ~1/AIO_TICKS of a second */
137static int tvdiff (struct timeval *tv1, struct timeval *tv2)
138{ 243{
139 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 244 sv_force_normal (sv);
140 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
141}
142 245
143static thread_t main_tid; 246 /* we store the length in mg_obj, as namlen is I32 :/ */
144static int main_sig; 247 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
145static int block_sig_level; 248 ->mg_obj = (SV *)length;
146 249
147void block_sig () 250 SvUPGRADE (sv, SVt_PV); /* nop... */
148{
149 sigset_t ss;
150 251
151 if (block_sig_level++) 252 if (SvLEN (sv))
253 Safefree (SvPVX (sv));
254
255 SvPVX (sv) = (char *)addr;
256 SvCUR_set (sv, length);
257 SvLEN_set (sv, 0);
258 SvPOK_only (sv);
259}
260
261static void
262sv_clear_foreign (SV *sv)
263{
264 /* todo: iterate over magic and only free ours, but of course */
265 /* the perl5porters will call that (correct) behaviour buggy */
266 sv_unmagic (sv, FOREIGN_MAGIC);
267}
268
269/*****************************************************************************/
270
271static void
272fiemap (eio_req *req)
273{
274 req->result = -1;
275
276#if HAVE_FIEMAP
277 /* assume some c99 */
278 struct fiemap *fiemap = 0;
279 size_t end_offset;
280 int count = req->int3;
281
282 req->flags |= EIO_FLAG_PTR1_FREE;
283
284 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
285 /* increase in 3.5kb steps */
286 if (count < 0)
287 count = 8;
288
289 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
290 errno = ENOMEM;
291 if (!fiemap)
152 return; 292 return;
153 293
154 if (!main_sig) 294 req->ptr1 = fiemap;
295
296 fiemap->fm_start = req->offs;
297 fiemap->fm_length = req->size;
298 fiemap->fm_flags = req->int2;
299 fiemap->fm_extent_count = count;
300
301 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
155 return; 302 return;
156 303
157 sigemptyset (&ss); 304 if (req->int3 >= 0 /* not autosizing */
158 sigaddset (&ss, main_sig); 305 || !fiemap->fm_mapped_extents /* no more extents */
159 pthread_sigmask (SIG_BLOCK, &ss, 0); 306 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
160} 307 goto done;
161 308
162void unblock_sig () 309 /* else we have to loop -
163{ 310 * it would be tempting (actually I tried that first) to just query the
164 sigset_t ss; 311 * number of extents needed, but linux often feels like not returning all
312 * extents, without telling us it left any out. this complicates
313 * this quite a bit.
314 */
165 315
166 if (--block_sig_level) 316 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
167 return;
168 317
169 if (!main_sig) 318 for (;;)
170 return;
171
172 sigemptyset (&ss);
173 sigaddset (&ss, main_sig);
174 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
175}
176
177static int next_pri = DEFAULT_PRI + PRI_BIAS;
178
179static unsigned int started, idle, wanted;
180
181/* worker threads management */
182static mutex_t wrklock = MUTEX_INIT;
183
184typedef struct worker {
185 /* locked by wrklock */
186 struct worker *prev, *next;
187
188 thread_t tid;
189
190 /* locked by reslock, reqlock or wrklock */
191 aio_req req; /* currently processed request */
192 void *dbuf;
193 DIR *dirp;
194} worker;
195
196static worker wrk_first = { &wrk_first, &wrk_first, 0 };
197
198static void worker_clear (worker *wrk)
199{
200 if (wrk->dirp)
201 { 319 {
202 closedir (wrk->dirp); 320 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
203 wrk->dirp = 0; 321 char scratch[3072];
204 } 322 struct fiemap *incmap = (struct fiemap *)scratch;
205 323
206 if (wrk->dbuf) 324 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
207 { 325 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
208 free (wrk->dbuf); 326 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
209 wrk->dbuf = 0; 327 incmap->fm_flags = fiemap->fm_flags;
210 } 328 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
211}
212 329
213static void worker_free (worker *wrk) 330 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
214{
215 wrk->next->prev = wrk->prev;
216 wrk->prev->next = wrk->next;
217
218 free (wrk);
219}
220
221static volatile unsigned int nreqs, nready, npending;
222static volatile unsigned int max_idle = 4;
223static volatile unsigned int max_outstanding = 0xffffffff;
224static int respipe [2];
225
226static mutex_t reslock = MUTEX_INIT;
227static mutex_t reqlock = MUTEX_INIT;
228static cond_t reqwait = COND_INIT;
229
230#if WORDACCESS_UNSAFE
231
232static unsigned int get_nready ()
233{
234 unsigned int retval;
235
236 LOCK (reqlock);
237 retval = nready;
238 UNLOCK (reqlock);
239
240 return retval;
241}
242
243static unsigned int get_npending ()
244{
245 unsigned int retval;
246
247 LOCK (reslock);
248 retval = npending;
249 UNLOCK (reslock);
250
251 return retval;
252}
253
254static unsigned int get_nthreads ()
255{
256 unsigned int retval;
257
258 LOCK (wrklock);
259 retval = started;
260 UNLOCK (wrklock);
261
262 return retval;
263}
264
265#else
266
267# define get_nready() nready
268# define get_npending() npending
269# define get_nthreads() started
270
271#endif
272
273/*
274 * a somewhat faster data structure might be nice, but
275 * with 8 priorities this actually needs <20 insns
276 * per shift, the most expensive operation.
277 */
278typedef struct {
279 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
280 int size;
281} reqq;
282
283static reqq req_queue;
284static reqq res_queue;
285
286int reqq_push (reqq *q, aio_req req)
287{
288 int pri = req->pri;
289 req->next = 0;
290
291 if (q->qe[pri])
292 {
293 q->qe[pri]->next = req;
294 q->qe[pri] = req;
295 }
296 else
297 q->qe[pri] = q->qs[pri] = req;
298
299 return q->size++;
300}
301
302aio_req reqq_shift (reqq *q)
303{
304 int pri;
305
306 if (!q->size)
307 return 0; 331 return;
308 332
309 --q->size; 333 if (!incmap->fm_mapped_extents)
334 goto done;
310 335
311 for (pri = NUM_PRI; pri--; ) 336 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
312 { 337 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
313 aio_req req = q->qs[pri]; 338 errno = ENOMEM;
314
315 if (req) 339 if (!fiemap)
340 return;
341
342 req->ptr1 = fiemap;
343
344 for (count = 0; count < incmap->fm_mapped_extents; ++count)
316 { 345 {
317 if (!(q->qs[pri] = req->next)) 346 struct fiemap_extent *e = incmap->fm_extents + count;
318 q->qe[pri] = 0;
319 347
320 return req; 348 if (e->fe_logical + e->fe_length >= end_offset)
349 goto done;
350
351 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
352
353 if (e->fe_flags & FIEMAP_EXTENT_LAST)
354 goto done;
355
321 } 356 }
322 } 357 }
323 358
324 abort (); 359done:
325} 360 req->result = 0;
326 361
327static int poll_cb (); 362#else
328static int req_invoke (aio_req req); 363 errno = ENOSYS;
364#endif
365}
366
367/*****************************************************************************/
368
369enum {
370 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
371};
372
373typedef eio_req *aio_req;
374typedef eio_req *aio_req_ornot;
375typedef eio_wd aio_wd;
376
377static SV *on_next_submit;
378static int next_pri = EIO_PRI_DEFAULT;
379static int max_outstanding;
380
381static s_epipe respipe;
382
329static void req_destroy (aio_req req); 383static void req_destroy (aio_req req);
330static void req_cancel (aio_req req); 384static void req_cancel (aio_req req);
331 385
386static void
387want_poll (void)
388{
389 /* write a dummy byte to the pipe so fh becomes ready */
390 s_epipe_signal (&respipe);
391}
392
393static void
394done_poll (void)
395{
396 /* read any signals sent by the worker threads */
397 s_epipe_drain (&respipe);
398}
399
332/* must be called at most once */ 400/* must be called at most once */
333static SV *req_sv (aio_req req, const char *klass) 401static SV *
402req_sv (aio_req req, HV *stash)
334{ 403{
335 if (!req->self) 404 if (!req->self)
336 { 405 {
337 req->self = (SV *)newHV (); 406 req->self = (SV *)newHV ();
338 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 407 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
339 } 408 }
340 409
341 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 410 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
342} 411}
343 412
344static aio_req SvAIO_REQ (SV *sv) 413static SV *
414newSVaio_wd (aio_wd wd)
415{
416 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
417}
418
419static aio_req
420SvAIO_REQ (SV *sv)
345{ 421{
346 MAGIC *mg; 422 MAGIC *mg;
347 423
348 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 424 if (!SvROK (sv)
425 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
426 || (SvSTASH (SvRV (sv)) != aio_grp_stash
427 && SvSTASH (SvRV (sv)) != aio_req_stash
428 && !sv_derived_from (sv, "IO::AIO::REQ")))
349 croak ("object of class " AIO_REQ_KLASS " expected"); 429 croak ("object of class IO::AIO::REQ expected");
350 430
351 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 431 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
352 432
353 return mg ? (aio_req)mg->mg_ptr : 0; 433 return mg ? (aio_req)mg->mg_ptr : 0;
354} 434}
355 435
436static aio_wd
437SvAIO_WD (SV *sv)
438{
439 if (!SvROK (sv)
440 || SvTYPE (SvRV (sv)) != SVt_PVMG
441 || SvSTASH (SvRV (sv)) != aio_wd_stash)
442 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
443
444 return (aio_wd)(long)SvIVX (SvRV (sv));
445}
446
447static SV *
448newmortalFH (int fd, int flags)
449{
450 if (fd < 0)
451 return &PL_sv_undef;
452
453 GV *gv = (GV *)sv_newmortal ();
454 char sym[64];
455 int symlen;
456
457 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
458 gv_init (gv, aio_stash, sym, symlen, 0);
459
460 symlen = snprintf (
461 sym,
462 sizeof (sym),
463 "%s&=%d",
464 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
465 fd
466 );
467
468 return do_open (gv, sym, symlen, 0, 0, 0, 0)
469 ? (SV *)gv : &PL_sv_undef;
470}
471
472static void
356static void aio_grp_feed (aio_req grp) 473aio_grp_feed (aio_req grp)
357{ 474{
358 block_sig (); 475 if (grp->sv2 && SvOK (grp->sv2))
359
360 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
361 { 476 {
362 int old_len = grp->size;
363
364 if (grp->sv2 && SvOK (grp->sv2))
365 {
366 dSP; 477 dSP;
367 478
368 ENTER; 479 ENTER;
369 SAVETMPS; 480 SAVETMPS;
370 PUSHMARK (SP); 481 PUSHMARK (SP);
371 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 482 XPUSHs (req_sv (grp, aio_grp_stash));
372 PUTBACK; 483 PUTBACK;
373 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 484 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
374 SPAGAIN; 485 SPAGAIN;
375 FREETMPS; 486 FREETMPS;
376 LEAVE; 487 LEAVE;
377 }
378
379 /* stop if no progress has been made */
380 if (old_len == grp->size)
381 {
382 SvREFCNT_dec (grp->sv2);
383 grp->sv2 = 0;
384 break;
385 }
386 } 488 }
387
388 unblock_sig ();
389} 489}
390 490
391static void aio_grp_dec (aio_req grp) 491static void
492req_submit (eio_req *req)
392{ 493{
393 --grp->size; 494 eio_submit (req);
394 495
395 /* call feeder, if applicable */ 496 if (expect_false (on_next_submit))
396 aio_grp_feed (grp);
397
398 /* finish, if done */
399 if (!grp->size && grp->int1)
400 { 497 {
401 block_sig (); 498 dSP;
499 SV *cb = sv_2mortal (on_next_submit);
402 500
403 if (!req_invoke (grp)) 501 on_next_submit = 0;
404 {
405 req_destroy (grp);
406 unblock_sig ();
407 croak (0);
408 }
409 502
410 req_destroy (grp); 503 PUSHMARK (SP);
411 unblock_sig (); 504 PUTBACK;
505 call_sv (cb, G_DISCARD | G_EVAL);
412 } 506 }
413} 507}
414 508
509static int
415static int req_invoke (aio_req req) 510req_invoke (eio_req *req)
416{ 511{
417 dSP;
418
419 if (req->flags & FLAG_SV2_RO_OFF) 512 if (req->flags & FLAG_SV2_RO_OFF)
420 SvREADONLY_off (req->sv2); 513 SvREADONLY_off (req->sv2);
421 514
422 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 515 if (!EIO_CANCELLED (req) && req->callback)
423 { 516 {
517 dSP;
518 static SV *sv_result_cache; /* caches the result integer SV */
519 SV *sv_result;
520
424 ENTER; 521 ENTER;
425 SAVETMPS; 522 SAVETMPS;
426 PUSHMARK (SP); 523 PUSHMARK (SP);
427 EXTEND (SP, 1); 524 EXTEND (SP, 1);
428 525
526 /* do not recreate the result IV from scratch each time */
527 if (expect_true (sv_result_cache))
528 {
529 sv_result = sv_result_cache; sv_result_cache = 0;
530 SvIV_set (sv_result, req->result);
531 SvIOK_only (sv_result);
532 }
533 else
534 {
535 sv_result = newSViv (req->result);
536 SvREADONLY_on (sv_result);
537 }
538
429 switch (req->type) 539 switch (req->type)
430 { 540 {
541 case EIO_WD_OPEN:
542 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
543 break;
544
431 case REQ_READDIR: 545 case EIO_READDIR:
432 { 546 {
433 SV *rv = &PL_sv_undef; 547 SV *rv = &PL_sv_undef;
434 548
435 if (req->result >= 0) 549 if (req->result >= 0)
436 { 550 {
437 int i; 551 int i;
438 char *buf = req->ptr2; 552 char *names = (char *)req->ptr2;
553 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
439 AV *av = newAV (); 554 AV *av = newAV ();
440 555
441 av_extend (av, req->result - 1); 556 av_extend (av, req->result - 1);
442 557
443 for (i = 0; i < req->result; ++i) 558 for (i = 0; i < req->result; ++i)
444 { 559 {
445 SV *sv = newSVpv (buf, 0); 560 if (req->int1 & EIO_READDIR_DENTS)
561 {
562 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
446 563
564 if (req->int1 & EIO_READDIR_CUSTOM2)
565 {
566 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
567 AV *avent = newAV ();
568
569 av_extend (avent, 2);
570
571 if (!sv_type [ent->type])
572 {
573 sv_type [ent->type] = newSViv (ent->type);
574 SvREADONLY_on (sv_type [ent->type]);
575 }
576
577 av_store (avent, 0, namesv);
578 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
579 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
580
581 av_store (av, i, newRV_noinc ((SV *)avent));
582 }
583 else
447 av_store (av, i, sv); 584 av_store (av, i, namesv);
585
586 ++ent;
587 }
588 else
589 {
590 SV *name = newSVpv (names, 0);
591 av_store (av, i, name);
448 buf += SvCUR (sv) + 1; 592 names += SvCUR (name) + 1;
593 }
449 } 594 }
450 595
451 rv = sv_2mortal (newRV_noinc ((SV *)av)); 596 rv = sv_2mortal (newRV_noinc ((SV *)av));
452 } 597 }
453 598
454 PUSHs (rv); 599 PUSHs (rv);
600
601 if (req->int1 & EIO_READDIR_CUSTOM1)
602 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
455 } 603 }
456 break; 604 break;
457 605
458 case REQ_OPEN: 606 case EIO_OPEN:
607 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
608 break;
609
610 case EIO_STATVFS:
611 case EIO_FSTATVFS:
459 { 612 {
460 /* convert fd to fh */ 613 SV *rv = &PL_sv_undef;
461 SV *fh; 614
615#ifndef _WIN32
616 if (req->result >= 0)
617 {
618 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
619 HV *hv = newHV ();
620 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
621 * chooses to make it a struct.
622 */
623 unsigned long fsid = 0;
624 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
462 625
463 PUSHs (sv_2mortal (newSViv (req->result))); 626 rv = sv_2mortal (newRV_noinc ((SV *)hv));
464 PUTBACK;
465 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
466 SPAGAIN;
467 627
468 fh = POPs; 628 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
469 PUSHMARK (SP); 629 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
630 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
631 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
632 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
633 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
634 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
635 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
636 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
637 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
638 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
639 }
640#endif
641
470 XPUSHs (fh); 642 PUSHs (rv);
471 } 643 }
644
472 break; 645 break;
473 646
474 case REQ_GROUP: 647 case EIO_GROUP:
475 req->int1 = 2; /* mark group as finished */ 648 req->int1 = 2; /* mark group as finished */
476 649
477 if (req->sv1) 650 if (req->sv1)
478 { 651 {
479 int i; 652 int i;
… …
483 for (i = 0; i <= AvFILL (av); ++i) 656 for (i = 0; i <= AvFILL (av); ++i)
484 PUSHs (*av_fetch (av, i, 0)); 657 PUSHs (*av_fetch (av, i, 0));
485 } 658 }
486 break; 659 break;
487 660
488 case REQ_NOP: 661 case EIO_NOP:
489 case REQ_BUSY: 662 case EIO_BUSY:
490 break; 663 break;
491 664
492 case REQ_READLINK: 665 case EIO_READLINK:
666 case EIO_REALPATH:
493 if (req->result > 0) 667 if (req->result > 0)
668 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
669 break;
670
671 case EIO_STAT:
672 case EIO_LSTAT:
673 case EIO_FSTAT:
674 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
675
676 if (!(PL_laststatval = req->result))
677 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
678 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
679
680 PUSHs (sv_result);
681 break;
682
683 case EIO_SEEK:
684 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
685 break;
686
687 case EIO_READ:
688 {
689 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
690 *SvEND (req->sv2) = 0;
691 SvPOK_only (req->sv2);
692 SvSETMAGIC (req->sv2);
693 PUSHs (sv_result);
694 }
695 break;
696
697 case EIO_SLURP:
698 {
699 if (req->result >= 0)
700 {
701 /* if length was originally not known, we steal the malloc'ed memory */
702 if (req->flags & EIO_FLAG_PTR2_FREE)
703 {
704 req->flags &= ~EIO_FLAG_PTR2_FREE;
705 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
706 }
707 else
708 {
709 SvCUR_set (req->sv2, req->result);
710 *SvEND (req->sv2) = 0;
711 SvPOK_only (req->sv2);
712 }
713
714 SvSETMAGIC (req->sv2);
715 }
716
717 PUSHs (sv_result);
718 }
719 break;
720
721 case EIO_CUSTOM:
722 if (req->feed == fiemap)
494 { 723 {
495 SvCUR_set (req->sv2, req->result); 724#if HAVE_FIEMAP
496 *SvEND (req->sv2) = 0;
497 PUSHs (req->sv2); 725 if (!req->result)
726 {
727 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
728
729 if (fiemap->fm_extent_count)
730 {
731 AV *av = newAV ();
732 int i;
733
734 while (fiemap->fm_mapped_extents)
735 {
736 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
737 AV *ext_av = newAV ();
738
739 av_store (ext_av, 3, newSVuv (extent->fe_flags));
740 av_store (ext_av, 2, newSVval64 (extent->fe_length));
741 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
742 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
743
744 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
745 }
746
747 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
748 }
749 else
750 {
751 SvIV_set (sv_result, fiemap->fm_mapped_extents);
752 PUSHs (sv_result);
753 }
754 }
755#endif
498 } 756 }
757 else
758 PUSHs (sv_result);
499 break; 759 break;
500 760
501 case REQ_STAT: 761 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
502 case REQ_LSTAT: 762 if (req->result > 0)
503 case REQ_FSTAT: 763 SvIV_set (sv_result, 0);
504 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 764 /* FALLTHROUGH */
505 PL_laststatval = req->result;
506 PL_statcache = *(Stat_t *)(req->ptr2);
507 PUSHs (sv_2mortal (newSViv (req->result)));
508 break;
509
510 case REQ_READ:
511 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
512 *SvEND (req->sv2) = 0;
513 PUSHs (sv_2mortal (newSViv (req->result)));
514 break;
515 765
516 default: 766 default:
517 PUSHs (sv_2mortal (newSViv (req->result))); 767 PUSHs (sv_result);
518 break; 768 break;
519 } 769 }
520 770
521 errno = req->errorno; 771 errno = req->errorno;
522 772
523 PUTBACK; 773 PUTBACK;
524 call_sv (req->callback, G_VOID | G_EVAL); 774 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
525 SPAGAIN; 775 SPAGAIN;
776
777 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
778 SvREFCNT_dec (sv_result);
779 else
780 sv_result_cache = sv_result;
526 781
527 FREETMPS; 782 FREETMPS;
528 LEAVE; 783 LEAVE;
784
785 PUTBACK;
529 } 786 }
530 787
531 if (req->grp)
532 {
533 aio_req grp = req->grp;
534
535 /* unlink request */
536 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
537 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
538
539 if (grp->grp_first == req)
540 grp->grp_first = req->grp_next;
541
542 aio_grp_dec (grp);
543 }
544
545 return !SvTRUE (ERRSV); 788 return !!SvTRUE (ERRSV);
546} 789}
547 790
791static void
548static void req_destroy (aio_req req) 792req_destroy (aio_req req)
549{ 793{
550 if (req->self) 794 if (req->self)
551 { 795 {
552 sv_unmagic (req->self, PERL_MAGIC_ext); 796 sv_unmagic (req->self, PERL_MAGIC_ext);
553 SvREFCNT_dec (req->self); 797 SvREFCNT_dec (req->self);
554 } 798 }
555 799
556 SvREFCNT_dec (req->sv1); 800 SvREFCNT_dec (req->sv1);
557 SvREFCNT_dec (req->sv2); 801 SvREFCNT_dec (req->sv2);
802 SvREFCNT_dec (req->sv3);
803 SvREFCNT_dec (req->sv4);
558 SvREFCNT_dec (req->callback); 804 SvREFCNT_dec (req->callback);
559 805
560 if (req->flags & FLAG_PTR2_FREE)
561 free (req->ptr2);
562
563 Safefree (req); 806 free (req);
564} 807}
565 808
809static void
566static void req_cancel_subs (aio_req grp) 810req_cancel_subs (aio_req grp)
567{ 811{
568 aio_req sub;
569
570 if (grp->type != REQ_GROUP) 812 if (grp->type != EIO_GROUP)
571 return; 813 return;
572 814
573 SvREFCNT_dec (grp->sv2); 815 SvREFCNT_dec (grp->sv2);
574 grp->sv2 = 0; 816 grp->sv2 = 0;
575 817
576 for (sub = grp->grp_first; sub; sub = sub->grp_next) 818 eio_grp_cancel (grp);
577 req_cancel (sub);
578} 819}
579 820
580static void req_cancel (aio_req req) 821static void ecb_cold
822create_respipe (void)
581{ 823{
582 req->flags |= FLAG_CANCELLED; 824 if (s_epipe_renew (&respipe))
583 825 croak ("IO::AIO: unable to initialize result pipe");
584 req_cancel_subs (req);
585} 826}
586 827
587static void *aio_proc (void *arg); 828static void
588 829poll_wait (void)
589static void start_thread (void)
590{ 830{
591 worker *wrk = calloc (1, sizeof (worker));
592
593 if (!wrk)
594 croak ("unable to allocate worker thread data");
595
596 LOCK (wrklock);
597
598 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
599 {
600 wrk->prev = &wrk_first;
601 wrk->next = wrk_first.next;
602 wrk_first.next->prev = wrk;
603 wrk_first.next = wrk;
604 ++started;
605 }
606 else
607 free (wrk);
608
609 UNLOCK (wrklock);
610}
611
612static void maybe_start_thread ()
613{
614 if (get_nthreads () >= wanted)
615 return;
616
617 /* todo: maybe use idle here, but might be less exact */
618 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
619 return;
620
621 start_thread ();
622}
623
624static void req_send (aio_req req)
625{
626 block_sig ();
627
628 ++nreqs;
629
630 LOCK (reqlock);
631 ++nready;
632 reqq_push (&req_queue, req);
633 COND_SIGNAL (reqwait);
634 UNLOCK (reqlock);
635
636 unblock_sig ();
637
638 maybe_start_thread ();
639}
640
641static void end_thread (void)
642{
643 aio_req req;
644
645 Newz (0, req, 1, aio_cb);
646
647 req->type = REQ_QUIT;
648 req->pri = PRI_MAX + PRI_BIAS;
649
650 LOCK (reqlock);
651 reqq_push (&req_queue, req);
652 COND_SIGNAL (reqwait);
653 UNLOCK (reqlock);
654
655 LOCK (wrklock);
656 --started;
657 UNLOCK (wrklock);
658}
659
660static void set_max_idle (int nthreads)
661{
662 if (WORDACCESS_UNSAFE) LOCK (reqlock);
663 max_idle = nthreads <= 0 ? 1 : nthreads;
664 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
665}
666
667static void min_parallel (int nthreads)
668{
669 if (wanted < nthreads)
670 wanted = nthreads;
671}
672
673static void max_parallel (int nthreads)
674{
675 if (wanted > nthreads)
676 wanted = nthreads;
677
678 while (started > wanted)
679 end_thread ();
680}
681
682static void poll_wait ()
683{
684 fd_set rfd;
685
686 while (nreqs) 831 while (eio_nreqs ())
687 { 832 {
688 int size; 833 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 834
835 X_LOCK (EIO_POOL->reslock);
690 size = res_queue.size; 836 size = EIO_POOL->res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 837 X_UNLOCK (EIO_POOL->reslock);
692 838
693 if (size) 839 if (size)
694 return; 840 return;
695 841
696 maybe_start_thread (); 842 etp_maybe_start_thread (EIO_POOL);
697 843
698 FD_ZERO(&rfd); 844 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 845 }
703} 846}
704 847
705static int poll_cb () 848static int
849poll_cb (void)
706{ 850{
707 dSP;
708 int count = 0;
709 int maxreqs = max_poll_reqs;
710 int do_croak = 0;
711 struct timeval tv_start, tv_now;
712 aio_req req;
713
714 if (max_poll_time)
715 gettimeofday (&tv_start, 0);
716
717 block_sig ();
718
719 for (;;) 851 for (;;)
720 { 852 {
721 for (;;) 853 int res = eio_poll ();
854
855 if (res > 0)
856 croak (0);
857
858 if (!max_outstanding || max_outstanding > eio_nreqs ())
859 return res;
860
861 poll_wait ();
862 }
863}
864
865static void ecb_cold
866reinit (void)
867{
868 create_respipe ();
869
870 if (eio_init (want_poll, done_poll) < 0)
871 croak ("IO::AIO: unable to initialise eio library");
872}
873
874/*****************************************************************************/
875
876static SV *
877get_cb (SV *cb_sv)
878{
879 SvGETMAGIC (cb_sv);
880 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
881}
882
883static aio_req ecb_noinline
884dreq (SV *callback)
885{
886 SV *cb_cv;
887 aio_req req;
888 int req_pri = next_pri;
889 next_pri = EIO_PRI_DEFAULT;
890
891 cb_cv = get_cb (callback);
892
893 req = calloc (sizeof (*req), 1);
894 if (!req)
895 croak ("out of memory during eio_req allocation");
896
897 req->callback = SvREFCNT_inc (cb_cv);
898 req->pri = req_pri;
899
900 return req;
901}
902
903#define dREQ \
904 aio_req req = dreq (callback); \
905
906#define REQ_SEND \
907 PUTBACK; \
908 req_submit (req); \
909 SPAGAIN; \
910 \
911 if (GIMME_V != G_VOID) \
912 XPUSHs (req_sv (req, aio_req_stash));
913
914ecb_inline void
915req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
916{
917 if (expect_false (SvROK (path)))
918 {
919 SV *rv = SvRV (path);
920 SV *wdob;
921
922 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
722 { 923 {
723 maybe_start_thread (); 924 path = AvARRAY (rv)[1];
925 wdob = AvARRAY (rv)[0];
724 926
725 LOCK (reslock); 927 if (SvOK (wdob))
726 req = reqq_shift (&res_queue);
727
728 if (req)
729 { 928 {
730 --npending; 929 *wd = SvAIO_WD (wdob);
731 930 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
732 if (!res_queue.size)
733 {
734 /* read any signals sent by the worker threads */
735 char buf [4];
736 while (read (respipe [0], buf, 4) == 4)
737 ;
738 }
739 }
740
741 UNLOCK (reslock);
742
743 if (!req)
744 break;
745
746 --nreqs;
747
748 if (req->type == REQ_GROUP && req->size)
749 {
750 req->int1 = 1; /* mark request as delayed */
751 continue;
752 } 931 }
753 else 932 else
754 { 933 *wd = EIO_INVALID_WD;
755 if (!req_invoke (req))
756 {
757 req_destroy (req);
758 unblock_sig ();
759 croak (0);
760 }
761
762 count++;
763 }
764
765 req_destroy (req);
766
767 if (maxreqs && !--maxreqs)
768 break;
769
770 if (max_poll_time)
771 {
772 gettimeofday (&tv_now, 0);
773
774 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
775 break;
776 }
777 } 934 }
935 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
936 {
937 *wd = (aio_wd)(long)SvIVX (rv);
938 *wdsv = SvREFCNT_inc_NN (rv);
939 *ptr = ".";
940 return; /* path set to "." */
941 }
942 else
943 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
944 }
778 945
779 if (nreqs <= max_outstanding) 946 *pathsv = newSVsv (path);
947 *ptr = SvPVbyte_nolen (*pathsv);
948}
949
950static void ecb_noinline
951req_set_path1 (aio_req req, SV *path)
952{
953 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
954}
955
956static void ecb_noinline
957req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
958{
959 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
960
961 switch (SvTYPE (rv))
962 {
963 case SVt_PVIO:
964 case SVt_PVLV:
965 case SVt_PVGV:
966 req->type = type_fh;
967 req->sv1 = newSVsv (fh_or_path);
968 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
780 break; 969 break;
781 970
782 poll_wait (); 971 default:
783 972 req->type = type_path;
784 ++maxreqs; 973 req_set_path1 (req, fh_or_path);
974 break;
785 } 975 }
786
787 unblock_sig ();
788 return count;
789} 976}
790 977
791static void create_pipe () 978XS(boot_IO__AIO) ecb_cold;
792{
793 if (pipe (respipe))
794 croak ("unable to initialize result pipe");
795 979
796 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
797 croak ("cannot set result pipe to nonblocking mode");
798
799 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
800 croak ("cannot set result pipe to nonblocking mode");
801}
802
803/*****************************************************************************/
804/* work around various missing functions */
805
806#if !HAVE_PREADWRITE
807# define pread aio_pread
808# define pwrite aio_pwrite
809
810/*
811 * make our pread/pwrite safe against themselves, but not against
812 * normal read/write by using a mutex. slows down execution a lot,
813 * but that's your problem, not mine.
814 */
815static mutex_t preadwritelock = MUTEX_INIT;
816
817static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
818{
819 ssize_t res;
820 off_t ooffset;
821
822 LOCK (preadwritelock);
823 ooffset = lseek (fd, 0, SEEK_CUR);
824 lseek (fd, offset, SEEK_SET);
825 res = read (fd, buf, count);
826 lseek (fd, ooffset, SEEK_SET);
827 UNLOCK (preadwritelock);
828
829 return res;
830}
831
832static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
833{
834 ssize_t res;
835 off_t ooffset;
836
837 LOCK (preadwritelock);
838 ooffset = lseek (fd, 0, SEEK_CUR);
839 lseek (fd, offset, SEEK_SET);
840 res = write (fd, buf, count);
841 lseek (fd, offset, SEEK_SET);
842 UNLOCK (preadwritelock);
843
844 return res;
845}
846#endif
847
848#ifndef HAVE_FUTIMES
849
850# define utimes(path,times) aio_utimes (path, times)
851# define futimes(fd,times) aio_futimes (fd, times)
852
853int aio_utimes (const char *filename, const struct timeval times[2])
854{
855 if (times)
856 {
857 struct utimbuf buf;
858
859 buf.actime = times[0].tv_sec;
860 buf.modtime = times[1].tv_sec;
861
862 return utime (filename, &buf);
863 }
864 else
865 return utime (filename, 0);
866}
867
868int aio_futimes (int fd, const struct timeval tv[2])
869{
870 errno = ENOSYS;
871 return -1;
872}
873
874#endif
875
876#if !HAVE_FDATASYNC
877# define fdatasync fsync
878#endif
879
880#if !HAVE_READAHEAD
881# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
882
883static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
884{
885 dBUF;
886
887 while (count > 0)
888 {
889 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
890
891 pread (fd, aio_buf, len, offset);
892 offset += len;
893 count -= len;
894 }
895
896 errno = 0;
897}
898
899#endif
900
901#if !HAVE_READDIR_R
902# define readdir_r aio_readdir_r
903
904static mutex_t readdirlock = MUTEX_INIT;
905
906static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
907{
908 struct dirent *e;
909 int errorno;
910
911 LOCK (readdirlock);
912
913 e = readdir (dirp);
914 errorno = errno;
915
916 if (e)
917 {
918 *res = ent;
919 strcpy (ent->d_name, e->d_name);
920 }
921 else
922 *res = 0;
923
924 UNLOCK (readdirlock);
925
926 errno = errorno;
927 return e ? 0 : -1;
928}
929#endif
930
931/* sendfile always needs emulation */
932static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
933{
934 ssize_t res;
935
936 if (!count)
937 return 0;
938
939#if HAVE_SENDFILE
940# if __linux
941 res = sendfile (ofd, ifd, &offset, count);
942
943# elif __freebsd
944 /*
945 * Of course, the freebsd sendfile is a dire hack with no thoughts
946 * wasted on making it similar to other I/O functions.
947 */
948 {
949 off_t sbytes;
950 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
951
952 if (res < 0 && sbytes)
953 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
954 res = sbytes;
955 }
956
957# elif __hpux
958 res = sendfile (ofd, ifd, offset, count, 0, 0);
959
960# elif __solaris
961 {
962 struct sendfilevec vec;
963 size_t sbytes;
964
965 vec.sfv_fd = ifd;
966 vec.sfv_flag = 0;
967 vec.sfv_off = offset;
968 vec.sfv_len = count;
969
970 res = sendfilev (ofd, &vec, 1, &sbytes);
971
972 if (res < 0 && sbytes)
973 res = sbytes;
974 }
975
976# endif
977#else
978 res = -1;
979 errno = ENOSYS;
980#endif
981
982 if (res < 0
983 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
984#if __solaris
985 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
986#endif
987 )
988 )
989 {
990 /* emulate sendfile. this is a major pain in the ass */
991 dBUF;
992
993 res = 0;
994
995 while (count)
996 {
997 ssize_t cnt;
998
999 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1000
1001 if (cnt <= 0)
1002 {
1003 if (cnt && !res) res = -1;
1004 break;
1005 }
1006
1007 cnt = write (ofd, aio_buf, cnt);
1008
1009 if (cnt <= 0)
1010 {
1011 if (cnt && !res) res = -1;
1012 break;
1013 }
1014
1015 offset += cnt;
1016 res += cnt;
1017 count -= cnt;
1018 }
1019 }
1020
1021 return res;
1022}
1023
1024/* read a full directory */
1025static void scandir_ (aio_req req, worker *self)
1026{
1027 DIR *dirp;
1028 union
1029 {
1030 struct dirent d;
1031 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1032 } *u;
1033 struct dirent *entp;
1034 char *name, *names;
1035 int memlen = 4096;
1036 int memofs = 0;
1037 int res = 0;
1038 int errorno;
1039
1040 LOCK (wrklock);
1041 self->dirp = dirp = opendir (req->ptr1);
1042 self->dbuf = u = malloc (sizeof (*u));
1043 req->flags |= FLAG_PTR2_FREE;
1044 req->ptr2 = names = malloc (memlen);
1045 UNLOCK (wrklock);
1046
1047 if (dirp && u && names)
1048 for (;;)
1049 {
1050 errno = 0;
1051 readdir_r (dirp, &u->d, &entp);
1052
1053 if (!entp)
1054 break;
1055
1056 name = entp->d_name;
1057
1058 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1059 {
1060 int len = strlen (name) + 1;
1061
1062 res++;
1063
1064 while (memofs + len > memlen)
1065 {
1066 memlen *= 2;
1067 LOCK (wrklock);
1068 req->ptr2 = names = realloc (names, memlen);
1069 UNLOCK (wrklock);
1070
1071 if (!names)
1072 break;
1073 }
1074
1075 memcpy (names + memofs, name, len);
1076 memofs += len;
1077 }
1078 }
1079
1080 if (errno)
1081 res = -1;
1082
1083 req->result = res;
1084}
1085
1086/*****************************************************************************/
1087
1088static void *aio_proc (void *thr_arg)
1089{
1090 aio_req req;
1091 struct timespec ts;
1092 worker *self = (worker *)thr_arg;
1093
1094 /* try to distribute timeouts somewhat evenly */
1095 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1096 * (1000000000UL / 1024UL);
1097
1098 for (;;)
1099 {
1100 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1101
1102 LOCK (reqlock);
1103
1104 for (;;)
1105 {
1106 self->req = req = reqq_shift (&req_queue);
1107
1108 if (req)
1109 break;
1110
1111 ++idle;
1112
1113 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1114 == ETIMEDOUT)
1115 {
1116 if (idle > max_idle)
1117 {
1118 --idle;
1119 UNLOCK (reqlock);
1120 LOCK (wrklock);
1121 --started;
1122 UNLOCK (wrklock);
1123 goto quit;
1124 }
1125
1126 /* we are allowed to idle, so do so without any timeout */
1127 COND_WAIT (reqwait, reqlock);
1128 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1129 }
1130
1131 --idle;
1132 }
1133
1134 --nready;
1135
1136 UNLOCK (reqlock);
1137
1138 errno = 0; /* strictly unnecessary */
1139
1140 if (!(req->flags & FLAG_CANCELLED))
1141 switch (req->type)
1142 {
1143 case REQ_READ: req->result = req->offs >= 0
1144 ? pread (req->int1, req->ptr1, req->size, req->offs)
1145 : read (req->int1, req->ptr1, req->size); break;
1146 case REQ_WRITE: req->result = req->offs >= 0
1147 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1148 : write (req->int1, req->ptr1, req->size); break;
1149
1150 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1151 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1152
1153 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1154 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1155 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1156
1157 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1158 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1159 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1160 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1161
1162 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1163 case REQ_CLOSE: req->result = close (req->int1); break;
1164 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1165 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1166 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1167 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1168 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1169 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1170 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1171 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1172
1173 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1174 case REQ_FSYNC: req->result = fsync (req->int1); break;
1175 case REQ_READDIR: scandir_ (req, self); break;
1176
1177 case REQ_BUSY:
1178 {
1179 struct timeval tv;
1180
1181 tv.tv_sec = req->nv1;
1182 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.;
1183
1184 req->result = select (0, 0, 0, 0, &tv);
1185 }
1186
1187 case REQ_UTIME:
1188 case REQ_FUTIME:
1189 {
1190 struct timeval tv[2];
1191 struct timeval *times;
1192
1193 if (req->nv1 != -1. || req->nv2 != -1.)
1194 {
1195 tv[0].tv_sec = req->nv1;
1196 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1197 tv[1].tv_sec = req->nv2;
1198 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1199
1200 times = tv;
1201 }
1202 else
1203 times = 0;
1204
1205
1206 req->result = req->type == REQ_FUTIME
1207 ? futimes (req->int1, times)
1208 : utimes (req->ptr1, times);
1209 }
1210
1211 case REQ_GROUP:
1212 case REQ_NOP:
1213 break;
1214
1215 case REQ_QUIT:
1216 goto quit;
1217
1218 default:
1219 req->result = -1;
1220 break;
1221 }
1222
1223 req->errorno = errno;
1224
1225 LOCK (reslock);
1226
1227 ++npending;
1228
1229 if (!reqq_push (&res_queue, req))
1230 {
1231 /* write a dummy byte to the pipe so fh becomes ready */
1232 write (respipe [1], &respipe, 1);
1233
1234 /* optionally signal the main thread asynchronously */
1235 if (main_sig)
1236 pthread_kill (main_tid, main_sig);
1237 }
1238
1239 self->req = 0;
1240 worker_clear (self);
1241
1242 UNLOCK (reslock);
1243 }
1244
1245quit:
1246 LOCK (wrklock);
1247 worker_free (self);
1248 UNLOCK (wrklock);
1249
1250 return 0;
1251}
1252
1253/*****************************************************************************/
1254
1255static void atfork_prepare (void)
1256{
1257 LOCK (wrklock);
1258 LOCK (reqlock);
1259 LOCK (reslock);
1260#if !HAVE_PREADWRITE
1261 LOCK (preadwritelock);
1262#endif
1263#if !HAVE_READDIR_R
1264 LOCK (readdirlock);
1265#endif
1266}
1267
1268static void atfork_parent (void)
1269{
1270#if !HAVE_READDIR_R
1271 UNLOCK (readdirlock);
1272#endif
1273#if !HAVE_PREADWRITE
1274 UNLOCK (preadwritelock);
1275#endif
1276 UNLOCK (reslock);
1277 UNLOCK (reqlock);
1278 UNLOCK (wrklock);
1279}
1280
1281static void atfork_child (void)
1282{
1283 aio_req prv;
1284
1285 while (prv = reqq_shift (&req_queue))
1286 req_destroy (prv);
1287
1288 while (prv = reqq_shift (&res_queue))
1289 req_destroy (prv);
1290
1291 while (wrk_first.next != &wrk_first)
1292 {
1293 worker *wrk = wrk_first.next;
1294
1295 if (wrk->req)
1296 req_destroy (wrk->req);
1297
1298 worker_clear (wrk);
1299 worker_free (wrk);
1300 }
1301
1302 started = 0;
1303 idle = 0;
1304 nreqs = 0;
1305 nready = 0;
1306 npending = 0;
1307
1308 close (respipe [0]);
1309 close (respipe [1]);
1310 create_pipe ();
1311
1312 atfork_parent ();
1313}
1314
1315#define dREQ \
1316 aio_req req; \
1317 int req_pri = next_pri; \
1318 next_pri = DEFAULT_PRI + PRI_BIAS; \
1319 \
1320 if (SvOK (callback) && !SvROK (callback)) \
1321 croak ("callback must be undef or of reference type"); \
1322 \
1323 Newz (0, req, 1, aio_cb); \
1324 if (!req) \
1325 croak ("out of memory during aio_req allocation"); \
1326 \
1327 req->callback = newSVsv (callback); \
1328 req->pri = req_pri
1329
1330#define REQ_SEND \
1331 req_send (req); \
1332 \
1333 if (GIMME_V != G_VOID) \
1334 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1335
1336MODULE = IO::AIO PACKAGE = IO::AIO 980MODULE = IO::AIO PACKAGE = IO::AIO
1337 981
1338PROTOTYPES: ENABLE 982PROTOTYPES: ENABLE
1339 983
1340BOOT: 984BOOT:
1341{ 985{
986 static const struct {
987 const char *name;
988 IV iv;
989 } *civ, const_iv[] = {
990# define const_niv(name, value) { # name, (IV) value },
991# define const_iv(name) { # name, (IV) name },
992# define const_eio(name) { # name, (IV) EIO_ ## name },
993
994 /* you have to re-run ./gendef0 after adding/removing any constants here */
995 /* the first block can be undef if missing */
996 const_iv (ENOSYS)
997 const_iv (EXDEV)
998 const_iv (EBADR)
999
1000 /* for lseek */
1001 const_iv (SEEK_DATA)
1002 const_iv (SEEK_HOLE)
1003
1004 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1005 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1006 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1007 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1008 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1009 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1010
1011 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1012 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1013 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1014 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1015 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1016
1017 /* the second block will be 0 when missing */
1018 const_iv (O_RDONLY)
1019 const_iv (O_WRONLY)
1020 const_iv (O_RDWR)
1021 const_iv (O_CREAT)
1022 const_iv (O_TRUNC)
1023 const_iv (O_EXCL)
1024 const_iv (O_APPEND)
1025
1026 const_iv (O_ASYNC)
1027 const_iv (O_DIRECT)
1028 const_iv (O_NOATIME)
1029
1030 const_iv (O_CLOEXEC)
1031 const_iv (O_NOCTTY)
1032 const_iv (O_NOFOLLOW)
1033 const_iv (O_NONBLOCK)
1034 const_iv (O_EXEC)
1035 const_iv (O_SEARCH)
1036 const_iv (O_DIRECTORY)
1037 const_iv (O_DSYNC)
1038 const_iv (O_RSYNC)
1039 const_iv (O_SYNC)
1040 const_iv (O_PATH)
1041 const_iv (O_TMPFILE)
1042 const_iv (O_TTY_INIT)
1043
1044 const_iv (S_IFIFO)
1045 const_iv (S_IFCHR)
1046 const_iv (S_IFBLK)
1047 const_iv (S_IFLNK)
1048 const_iv (S_IFREG)
1049 const_iv (S_IFDIR)
1050 const_iv (S_IFWHT)
1051 const_iv (S_IFSOCK)
1052 const_iv (S_IFMT)
1053
1054 const_iv (ST_RDONLY)
1055 const_iv (ST_NOSUID)
1056 const_iv (ST_NODEV)
1057 const_iv (ST_NOEXEC)
1058 const_iv (ST_SYNCHRONOUS)
1059 const_iv (ST_MANDLOCK)
1060 const_iv (ST_WRITE)
1061 const_iv (ST_APPEND)
1062 const_iv (ST_IMMUTABLE)
1063 const_iv (ST_NOATIME)
1064 const_iv (ST_NODIRATIME)
1065 const_iv (ST_RELATIME)
1066
1067 const_iv (PROT_NONE)
1068 const_iv (PROT_EXEC)
1069 const_iv (PROT_READ)
1070 const_iv (PROT_WRITE)
1071
1072 const_iv (MAP_PRIVATE)
1073 const_iv (MAP_SHARED)
1074 const_iv (MAP_FIXED)
1075 const_iv (MAP_ANONYMOUS)
1076
1077 /* linuxish */
1078 const_iv (MAP_LOCKED)
1079 const_iv (MAP_NORESERVE)
1080 const_iv (MAP_POPULATE)
1081 const_iv (MAP_NONBLOCK)
1082 const_iv (MAP_GROWSDOWN)
1083 const_iv (MAP_32BIT)
1084 const_iv (MAP_HUGETLB)
1085 const_iv (MAP_STACK)
1086
1087 const_iv (F_DUPFD_CLOEXEC)
1088
1089 const_iv (F_OFD_GETLK)
1090 const_iv (F_OFD_SETLK)
1091 const_iv (F_OFD_GETLKW)
1092
1093 const_iv (FIFREEZE)
1094 const_iv (FITHAW)
1095 const_iv (FITRIM)
1096 const_iv (FICLONE)
1097 const_iv (FICLONERANGE)
1098 const_iv (FIDEDUPERANGE)
1099
1100 const_iv (FS_IOC_GETFLAGS)
1101 const_iv (FS_IOC_SETFLAGS)
1102 const_iv (FS_IOC_GETVERSION)
1103 const_iv (FS_IOC_SETVERSION)
1104 const_iv (FS_IOC_FIEMAP)
1105 const_iv (FS_IOC_FSGETXATTR)
1106 const_iv (FS_IOC_FSSETXATTR)
1107 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1108 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1109 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1110
1111 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1112
1113 const_iv (FS_SECRM_FL)
1114 const_iv (FS_UNRM_FL)
1115 const_iv (FS_COMPR_FL)
1116 const_iv (FS_SYNC_FL)
1117 const_iv (FS_IMMUTABLE_FL)
1118 const_iv (FS_APPEND_FL)
1119 const_iv (FS_NODUMP_FL)
1120 const_iv (FS_NOATIME_FL)
1121 const_iv (FS_DIRTY_FL)
1122 const_iv (FS_COMPRBLK_FL)
1123 const_iv (FS_NOCOMP_FL)
1124 const_iv (FS_ENCRYPT_FL)
1125 const_iv (FS_BTREE_FL)
1126 const_iv (FS_INDEX_FL)
1127 const_iv (FS_JOURNAL_DATA_FL)
1128 const_iv (FS_NOTAIL_FL)
1129 const_iv (FS_DIRSYNC_FL)
1130 const_iv (FS_TOPDIR_FL)
1131 const_iv (FS_FL_USER_MODIFIABLE)
1132
1133 const_iv (FS_XFLAG_REALTIME)
1134 const_iv (FS_XFLAG_PREALLOC)
1135 const_iv (FS_XFLAG_IMMUTABLE)
1136 const_iv (FS_XFLAG_APPEND)
1137 const_iv (FS_XFLAG_SYNC)
1138 const_iv (FS_XFLAG_NOATIME)
1139 const_iv (FS_XFLAG_NODUMP)
1140 const_iv (FS_XFLAG_RTINHERIT)
1141 const_iv (FS_XFLAG_PROJINHERIT)
1142 const_iv (FS_XFLAG_NOSYMLINKS)
1143 const_iv (FS_XFLAG_EXTSIZE)
1144 const_iv (FS_XFLAG_EXTSZINHERIT)
1145 const_iv (FS_XFLAG_NODEFRAG)
1146 const_iv (FS_XFLAG_FILESTREAM)
1147 const_iv (FS_XFLAG_DAX)
1148 const_iv (FS_XFLAG_HASATTR)
1149
1150 const_iv (FIEMAP_FLAG_SYNC)
1151 const_iv (FIEMAP_FLAG_XATTR)
1152 const_iv (FIEMAP_FLAGS_COMPAT)
1153 const_iv (FIEMAP_EXTENT_LAST)
1154 const_iv (FIEMAP_EXTENT_UNKNOWN)
1155 const_iv (FIEMAP_EXTENT_DELALLOC)
1156 const_iv (FIEMAP_EXTENT_ENCODED)
1157 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1158 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1159 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1160 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1161 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1162 const_iv (FIEMAP_EXTENT_MERGED)
1163 const_iv (FIEMAP_EXTENT_SHARED)
1164
1165 const_iv (SPLICE_F_MOVE)
1166 const_iv (SPLICE_F_NONBLOCK)
1167 const_iv (SPLICE_F_MORE)
1168 const_iv (SPLICE_F_GIFT)
1169
1170 const_iv (EFD_CLOEXEC)
1171 const_iv (EFD_NONBLOCK)
1172 const_iv (EFD_SEMAPHORE)
1173
1174 /* these are libeio constants, and are independent of gendef0 */
1175 const_eio (SEEK_SET)
1176 const_eio (SEEK_CUR)
1177 const_eio (SEEK_END)
1178
1179 const_eio (MCL_FUTURE)
1180 const_eio (MCL_CURRENT)
1181
1182 const_eio (MS_ASYNC)
1183 const_eio (MS_INVALIDATE)
1184 const_eio (MS_SYNC)
1185
1186 const_eio (MT_MODIFY)
1187
1188 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1189 const_eio (SYNC_FILE_RANGE_WRITE)
1190 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1191
1192 const_eio (FALLOC_FL_KEEP_SIZE)
1193 const_eio (FALLOC_FL_PUNCH_HOLE)
1194 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1195 const_eio (FALLOC_FL_ZERO_RANGE)
1196 const_eio (FALLOC_FL_INSERT_RANGE)
1197 const_eio (FALLOC_FL_UNSHARE_RANGE)
1198
1199 const_eio (RENAME_NOREPLACE)
1200 const_eio (RENAME_EXCHANGE)
1201 const_eio (RENAME_WHITEOUT)
1202
1203 const_eio (READDIR_DENTS)
1204 const_eio (READDIR_DIRS_FIRST)
1205 const_eio (READDIR_STAT_ORDER)
1206 const_eio (READDIR_FOUND_UNKNOWN)
1207
1208 const_eio (DT_UNKNOWN)
1209 const_eio (DT_FIFO)
1210 const_eio (DT_CHR)
1211 const_eio (DT_DIR)
1212 const_eio (DT_BLK)
1213 const_eio (DT_REG)
1214 const_eio (DT_LNK)
1215 const_eio (DT_SOCK)
1216 const_eio (DT_WHT)
1217 };
1218
1342 HV *stash = gv_stashpv ("IO::AIO", 1); 1219 aio_stash = gv_stashpv ("IO::AIO" , 1);
1220 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1221 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1222 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1343 1223
1344 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1224 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1345 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1225 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1346 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1347 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1348 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1349 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1350 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1351 1226
1352 create_pipe (); 1227 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1353 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1354}
1355 1228
1229 reinit ();
1230}
1231
1356void 1232void
1233reinit ()
1234 PROTOTYPE:
1235
1236void
1357max_poll_reqs (int nreqs) 1237max_poll_reqs (unsigned int nreqs)
1358 PROTOTYPE: $ 1238 PROTOTYPE: $
1359 CODE: 1239 CODE:
1360 max_poll_reqs = nreqs; 1240 eio_set_max_poll_reqs (nreqs);
1361 1241
1362void 1242void
1363max_poll_time (double nseconds) 1243max_poll_time (double nseconds)
1364 PROTOTYPE: $ 1244 PROTOTYPE: $
1365 CODE: 1245 CODE:
1366 max_poll_time = nseconds * AIO_TICKS; 1246 eio_set_max_poll_time (nseconds);
1367 1247
1368void 1248void
1369min_parallel (int nthreads) 1249min_parallel (unsigned int nthreads)
1370 PROTOTYPE: $
1371
1372void
1373max_parallel (int nthreads)
1374 PROTOTYPE: $
1375
1376void
1377max_idle (int nthreads)
1378 PROTOTYPE: $ 1250 PROTOTYPE: $
1379 CODE: 1251 CODE:
1380 set_max_idle (nthreads); 1252 eio_set_min_parallel (nthreads);
1381 1253
1382int 1254void
1383max_outstanding (int maxreqs) 1255max_parallel (unsigned int nthreads)
1384 PROTOTYPE: $ 1256 PROTOTYPE: $
1385 CODE: 1257 CODE:
1386 RETVAL = max_outstanding; 1258 eio_set_max_parallel (nthreads);
1259
1260void
1261max_idle (unsigned int nthreads)
1262 PROTOTYPE: $
1263 CODE:
1264 eio_set_max_idle (nthreads);
1265
1266void
1267idle_timeout (unsigned int seconds)
1268 PROTOTYPE: $
1269 CODE:
1270 eio_set_idle_timeout (seconds);
1271
1272void
1273max_outstanding (unsigned int maxreqs)
1274 PROTOTYPE: $
1275 CODE:
1387 max_outstanding = maxreqs; 1276 max_outstanding = maxreqs;
1388 OUTPUT:
1389 RETVAL
1390 1277
1391void 1278void
1392aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1279aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1393 PROTOTYPE: $$$;$
1394 PPCODE: 1280 PPCODE:
1395{ 1281{
1396 dREQ; 1282 dREQ;
1397 1283
1284 req->type = EIO_WD_OPEN;
1285 req_set_path1 (req, pathname);
1286
1287 REQ_SEND;
1288}
1289
1290void
1291aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1292 PPCODE:
1293{
1294 dREQ;
1295
1398 req->type = REQ_OPEN; 1296 req->type = EIO_OPEN;
1399 req->sv1 = newSVsv (pathname); 1297 req_set_path1 (req, pathname);
1400 req->ptr1 = SvPVbyte_nolen (req->sv1);
1401 req->int1 = flags; 1298 req->int1 = flags;
1402 req->mode = mode; 1299 req->int2 = mode;
1403 1300
1404 REQ_SEND; 1301 REQ_SEND;
1405} 1302}
1406 1303
1407void 1304void
1408aio_close (SV *fh, SV *callback=&PL_sv_undef) 1305aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1409 PROTOTYPE: $;$
1410 ALIAS: 1306 ALIAS:
1411 aio_close = REQ_CLOSE
1412 aio_fsync = REQ_FSYNC 1307 aio_fsync = EIO_FSYNC
1413 aio_fdatasync = REQ_FDATASYNC 1308 aio_fdatasync = EIO_FDATASYNC
1309 aio_syncfs = EIO_SYNCFS
1414 PPCODE: 1310 PPCODE:
1415{ 1311{
1312 int fd = s_fileno_croak (fh, 0);
1416 dREQ; 1313 dREQ;
1417 1314
1418 req->type = ix; 1315 req->type = ix;
1419 req->sv1 = newSVsv (fh); 1316 req->sv1 = newSVsv (fh);
1420 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1317 req->int1 = fd;
1421 1318
1422 REQ_SEND (req); 1319 REQ_SEND;
1423} 1320}
1424 1321
1425void 1322void
1323aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1324 PPCODE:
1325{
1326 int fd = s_fileno_croak (fh, 0);
1327 dREQ;
1328
1329 req->type = EIO_SYNC_FILE_RANGE;
1330 req->sv1 = newSVsv (fh);
1331 req->int1 = fd;
1332 req->offs = offset;
1333 req->size = nbytes;
1334 req->int2 = flags;
1335
1336 REQ_SEND;
1337}
1338
1339void
1340aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1341 PPCODE:
1342{
1343 int fd = s_fileno_croak (fh, 0);
1344 dREQ;
1345
1346 req->type = EIO_FALLOCATE;
1347 req->sv1 = newSVsv (fh);
1348 req->int1 = fd;
1349 req->int2 = mode;
1350 req->offs = offset;
1351 req->size = len;
1352
1353 REQ_SEND;
1354}
1355
1356void
1357aio_close (SV *fh, SV *callback = &PL_sv_undef)
1358 PPCODE:
1359{
1360 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1361 int fd = s_fileno_croak (fh, 0);
1362 dREQ;
1363
1364 if (expect_false (close_fd < 0))
1365 {
1366 int pipefd [2];
1367
1368 if (
1369#ifdef _WIN32
1370 _pipe (pipefd, 1, _O_BINARY) < 0
1371#else
1372 pipe (pipefd) < 0
1373 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1374#endif
1375 || close (pipefd [1]) < 0
1376 )
1377 abort (); /*D*/
1378
1379 close_fd = pipefd [0];
1380 }
1381
1382 req->type = EIO_DUP2;
1383 req->int1 = close_fd;
1384 req->sv2 = newSVsv (fh);
1385 req->int2 = fd;
1386
1387 REQ_SEND;
1388}
1389
1390void
1391aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1392 PPCODE:
1393{
1394 int fd = s_fileno_croak (fh, 0);
1395 dREQ;
1396
1397 req->type = EIO_SEEK;
1398 req->sv1 = newSVsv (fh);
1399 req->int1 = fd;
1400 req->offs = SvVAL64 (offset);
1401 req->int2 = whence;
1402
1403 REQ_SEND;
1404}
1405
1406void
1426aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1407aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1427 ALIAS: 1408 ALIAS:
1428 aio_read = REQ_READ 1409 aio_read = EIO_READ
1429 aio_write = REQ_WRITE 1410 aio_write = EIO_WRITE
1430 PROTOTYPE: $$$$$;$
1431 PPCODE: 1411 PPCODE:
1432{ 1412{
1433 STRLEN svlen; 1413 STRLEN svlen;
1414 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1434 char *svptr = SvPVbyte (data, svlen); 1415 char *svptr = SvPVbyte (data, svlen);
1435 UV len = SvUV (length); 1416 UV len = SvUV (length);
1436 1417
1437 SvUPGRADE (data, SVt_PV);
1438 SvPOK_on (data);
1439
1440 if (dataoffset < 0) 1418 if (dataoffset < 0)
1441 dataoffset += svlen; 1419 dataoffset += svlen;
1442 1420
1443 if (dataoffset < 0 || dataoffset > svlen) 1421 if (dataoffset < 0 || dataoffset > svlen)
1444 croak ("dataoffset outside of data scalar"); 1422 croak ("dataoffset outside of data scalar");
1445 1423
1446 if (ix == REQ_WRITE) 1424 if (ix == EIO_WRITE)
1447 { 1425 {
1448 /* write: check length and adjust. */ 1426 /* write: check length and adjust. */
1449 if (!SvOK (length) || len + dataoffset > svlen) 1427 if (!SvOK (length) || len + dataoffset > svlen)
1450 len = svlen - dataoffset; 1428 len = svlen - dataoffset;
1451 } 1429 }
1452 else 1430 else
1453 { 1431 {
1454 /* read: grow scalar as necessary */ 1432 /* read: check type and grow scalar as necessary */
1433 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1455 svptr = SvGROW (data, len + dataoffset + 1); 1434 svptr = sv_grow (data, len + dataoffset + 1);
1435 else if (SvCUR (data) < len + dataoffset)
1436 croak ("length + dataoffset outside of scalar, and cannot grow");
1456 } 1437 }
1457
1458 if (len < 0)
1459 croak ("length must not be negative");
1460 1438
1461 { 1439 {
1462 dREQ; 1440 dREQ;
1463 1441
1464 req->type = ix; 1442 req->type = ix;
1465 req->sv1 = newSVsv (fh); 1443 req->sv1 = newSVsv (fh);
1466 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1444 req->int1 = fd;
1467 : IoOFP (sv_2io (fh)));
1468 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1445 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1469 req->size = len; 1446 req->size = len;
1470 req->sv2 = SvREFCNT_inc (data); 1447 req->sv2 = SvREFCNT_inc (data);
1471 req->ptr1 = (char *)svptr + dataoffset; 1448 req->ptr2 = (char *)svptr + dataoffset;
1472 req->stroffset = dataoffset; 1449 req->stroffset = dataoffset;
1473 1450
1474 if (!SvREADONLY (data)) 1451 if (!SvREADONLY (data))
1475 { 1452 {
1476 SvREADONLY_on (data); 1453 SvREADONLY_on (data);
… …
1480 REQ_SEND; 1457 REQ_SEND;
1481 } 1458 }
1482} 1459}
1483 1460
1484void 1461void
1485aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1462aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1486 PROTOTYPE: $$;$ 1463 ALIAS:
1464 aio_ioctl = EIO_IOCTL
1465 aio_fcntl = EIO_FCNTL
1487 PPCODE: 1466 PPCODE:
1488{ 1467{
1489 SV *data; 1468 int fd = s_fileno_croak (fh, 0);
1490 dREQ; 1469 char *svptr;
1491 1470
1492 data = newSV (NAME_MAX); 1471 if (SvPOK (arg) || !SvNIOK (arg))
1493 SvPOK_on (data);
1494
1495 req->type = REQ_READLINK;
1496 req->sv1 = newSVsv (path);
1497 req->ptr2 = SvPVbyte_nolen (req->sv1);
1498 req->sv2 = data;
1499 req->ptr1 = SvPVbyte_nolen (data);
1500
1501 REQ_SEND;
1502}
1503
1504void
1505aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1506 PROTOTYPE: $$$$;$
1507 PPCODE:
1508{
1509 dREQ;
1510
1511 req->type = REQ_SENDFILE;
1512 req->sv1 = newSVsv (out_fh);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1514 req->sv2 = newSVsv (in_fh);
1515 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1516 req->offs = SvVAL64 (in_offset);
1517 req->size = length;
1518
1519 REQ_SEND;
1520}
1521
1522void
1523aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1524 PROTOTYPE: $$$;$
1525 PPCODE:
1526{
1527 dREQ;
1528
1529 req->type = REQ_READAHEAD;
1530 req->sv1 = newSVsv (fh);
1531 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1532 req->offs = SvVAL64 (offset);
1533 req->size = length;
1534
1535 REQ_SEND;
1536}
1537
1538void
1539aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1540 ALIAS:
1541 aio_stat = REQ_STAT
1542 aio_lstat = REQ_LSTAT
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req->ptr2 = malloc (sizeof (Stat_t));
1548 if (!req->ptr2)
1549 { 1472 {
1550 req_destroy (req); 1473 STRLEN svlen;
1551 croak ("out of memory during aio_stat statdata allocation"); 1474 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1552 } 1475#ifdef IOCPARM_LEN
1476 STRLEN need = IOCPARM_LEN (request);
1477#else
1478 STRLEN need = 256;
1479#endif
1553 1480
1554 req->flags |= FLAG_PTR2_FREE; 1481 if (svlen < need)
1555 req->sv1 = newSVsv (fh_or_path); 1482 svptr = SvGROW (arg, need);
1556
1557 if (SvPOK (fh_or_path))
1558 {
1559 req->type = ix;
1560 req->ptr1 = SvPVbyte_nolen (req->sv1);
1561 } 1483 }
1562 else 1484 else
1485 svptr = (char *)SvIV (arg);
1486
1563 { 1487 {
1488 dREQ;
1489
1564 req->type = REQ_FSTAT; 1490 req->type = ix;
1565 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1491 req->sv1 = newSVsv (fh);
1492 req->int1 = fd;
1493 req->int2 = (long)request;
1494 req->sv2 = SvREFCNT_inc (arg);
1495 req->ptr2 = svptr;
1496
1497 REQ_SEND;
1566 } 1498 }
1499}
1500
1501void
1502aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1503 ALIAS:
1504 aio_readlink = EIO_READLINK
1505 aio_realpath = EIO_REALPATH
1506 PPCODE:
1507{
1508 dREQ;
1509
1510 req->type = ix;
1511 req_set_path1 (req, pathname);
1567 1512
1568 REQ_SEND; 1513 REQ_SEND;
1569} 1514}
1570 1515
1571void 1516void
1517aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1518 PPCODE:
1519{
1520 int ifd = s_fileno_croak (in_fh , 0);
1521 int ofd = s_fileno_croak (out_fh, 1);
1522 dREQ;
1523
1524 req->type = EIO_SENDFILE;
1525 req->sv1 = newSVsv (out_fh);
1526 req->int1 = ofd;
1527 req->sv2 = newSVsv (in_fh);
1528 req->int2 = ifd;
1529 req->offs = in_offset;
1530 req->size = length;
1531
1532 REQ_SEND;
1533}
1534
1535void
1536aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1537 PPCODE:
1538{
1539 int fd = s_fileno_croak (fh, 0);
1540 dREQ;
1541
1542 req->type = EIO_READAHEAD;
1543 req->sv1 = newSVsv (fh);
1544 req->int1 = fd;
1545 req->offs = offset;
1546 req->size = length;
1547
1548 REQ_SEND;
1549}
1550
1551void
1552aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1553 ALIAS:
1554 aio_stat = EIO_STAT
1555 aio_lstat = EIO_LSTAT
1556 aio_statvfs = EIO_STATVFS
1557 PPCODE:
1558{
1559 dREQ;
1560
1561 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1562
1563 REQ_SEND;
1564}
1565
1566UV
1567major (UV dev)
1568 ALIAS:
1569 minor = 1
1570 CODE:
1571 RETVAL = ix ? minor (dev) : major (dev);
1572 OUTPUT:
1573 RETVAL
1574
1575UV
1576makedev (UV maj, UV min)
1577 CODE:
1578 RETVAL = makedev (maj, min);
1579 OUTPUT:
1580 RETVAL
1581
1582void
1572aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1583aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1573 PPCODE: 1584 PPCODE:
1574{ 1585{
1575 dREQ; 1586 dREQ;
1576 1587
1577 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1588 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1578 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1589 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1579 req->sv1 = newSVsv (fh_or_path); 1590 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1580
1581 if (SvPOK (fh_or_path))
1582 {
1583 req->type = REQ_UTIME;
1584 req->ptr1 = SvPVbyte_nolen (req->sv1);
1585 }
1586 else
1587 {
1588 req->type = REQ_FUTIME;
1589 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1590 }
1591 1591
1592 REQ_SEND; 1592 REQ_SEND;
1593} 1593}
1594 1594
1595void 1595void
1596aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1596aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1597 PPCODE: 1597 PPCODE:
1598{ 1598{
1599 dREQ; 1599 dREQ;
1600 1600
1601 req->mode = mode; 1601 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1602 req->sv1 = newSVsv (fh_or_path); 1602 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1603
1604 if (SvPOK (fh_or_path))
1605 {
1606 req->type = REQ_CHMOD;
1607 req->ptr1 = SvPVbyte_nolen (req->sv1);
1608 }
1609 else
1610 {
1611 req->type = REQ_FCHMOD;
1612 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1613 }
1614 1603
1615 REQ_SEND; 1604 REQ_SEND;
1616} 1605}
1617 1606
1618void 1607void
1608aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 dREQ;
1612
1613 req->int2 = mode;
1614 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1615
1616 REQ_SEND;
1617}
1618
1619void
1619aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1620aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1620 PPCODE: 1621 PPCODE:
1621{ 1622{
1622 dREQ; 1623 dREQ;
1623 1624
1624 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1625 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1625 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1626 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1626 req->sv1 = newSVsv (fh_or_path); 1627 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1627
1628 if (SvPOK (fh_or_path))
1629 {
1630 req->type = REQ_CHOWN;
1631 req->ptr1 = SvPVbyte_nolen (req->sv1);
1632 }
1633 else
1634 {
1635 req->type = REQ_FCHOWN;
1636 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1637 }
1638 1628
1639 REQ_SEND; 1629 REQ_SEND;
1640} 1630}
1641 1631
1642void 1632void
1633aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1634 PPCODE:
1635{
1636 dREQ;
1637
1638 req->type = EIO_READDIR;
1639 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1640
1641 if (flags & EIO_READDIR_DENTS)
1642 req->int1 |= EIO_READDIR_CUSTOM2;
1643
1644 req_set_path1 (req, pathname);
1645
1646 REQ_SEND;
1647}
1648
1649void
1650aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1651 PPCODE:
1652{
1653 dREQ;
1654
1655 req->type = EIO_MKDIR;
1656 req->int2 = mode;
1657 req_set_path1 (req, pathname);
1658
1659 REQ_SEND;
1660}
1661
1662void
1643aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1663aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1644 ALIAS: 1664 ALIAS:
1645 aio_unlink = REQ_UNLINK 1665 aio_unlink = EIO_UNLINK
1646 aio_rmdir = REQ_RMDIR 1666 aio_rmdir = EIO_RMDIR
1647 aio_readdir = REQ_READDIR 1667 aio_readdir = EIO_READDIR
1648 PPCODE: 1668 PPCODE:
1649{ 1669{
1650 dREQ; 1670 dREQ;
1651 1671
1652 req->type = ix; 1672 req->type = ix;
1653 req->sv1 = newSVsv (pathname); 1673 req_set_path1 (req, pathname);
1654 req->ptr1 = SvPVbyte_nolen (req->sv1);
1655 1674
1656 REQ_SEND; 1675 REQ_SEND;
1657} 1676}
1658 1677
1659void 1678void
1660aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1679aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1680 ALIAS:
1681 aio_link = EIO_LINK
1682 aio_symlink = EIO_SYMLINK
1683 aio_rename = EIO_RENAME
1661 PPCODE: 1684 PPCODE:
1662{ 1685{
1663 dREQ; 1686 eio_wd wd2 = 0;
1664
1665 req->type = REQ_MKDIR;
1666 req->sv1 = newSVsv (pathname);
1667 req->ptr1 = SvPVbyte_nolen (req->sv1);
1668 req->mode = mode;
1669
1670 REQ_SEND;
1671}
1672
1673void
1674aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1675 ALIAS:
1676 aio_link = REQ_LINK
1677 aio_symlink = REQ_SYMLINK
1678 aio_rename = REQ_RENAME
1679 PPCODE:
1680{
1681 dREQ; 1687 dREQ;
1682 1688
1683 req->type = ix; 1689 req->type = ix;
1684 req->sv2 = newSVsv (oldpath); 1690 req_set_path1 (req, oldpath);
1685 req->ptr2 = SvPVbyte_nolen (req->sv2); 1691 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1686 req->sv1 = newSVsv (newpath); 1692 req->int3 = (long)wd2;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 1693
1689 REQ_SEND; 1694 REQ_SEND;
1690} 1695}
1691 1696
1692void 1697void
1693aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1698aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1694 PPCODE: 1699 PPCODE:
1695{ 1700{
1701 eio_wd wd2 = 0;
1696 dREQ; 1702 dREQ;
1697 1703
1698 req->type = REQ_MKNOD; 1704 req->type = EIO_RENAME;
1699 req->sv1 = newSVsv (pathname); 1705 req_set_path1 (req, oldpath);
1700 req->ptr1 = SvPVbyte_nolen (req->sv1); 1706 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1701 req->mode = (mode_t)mode; 1707 req->int2 = flags;
1702 req->offs = dev; 1708 req->int3 = (long)wd2;
1703 1709
1704 REQ_SEND; 1710 REQ_SEND;
1705} 1711}
1706 1712
1707void 1713void
1708aio_busy (double delay, SV *callback=&PL_sv_undef) 1714aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1709 PPCODE: 1715 PPCODE:
1710{ 1716{
1711 dREQ; 1717 dREQ;
1718
1719 req->type = EIO_MKNOD;
1720 req->int2 = (mode_t)mode;
1721 req->offs = dev;
1722 req_set_path1 (req, pathname);
1723
1724 REQ_SEND;
1725}
1712 1726
1727void
1728aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1729 ALIAS:
1730 aio_mtouch = EIO_MTOUCH
1731 aio_msync = EIO_MSYNC
1732 PPCODE:
1733{
1734 STRLEN svlen;
1735 char *svptr = SvPVbyte (data, svlen);
1736 UV len = SvUV (length);
1737
1738 if (flags < 0)
1739 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1740
1741 if (offset < 0)
1742 offset += svlen;
1743
1744 if (offset < 0 || offset > svlen)
1745 croak ("offset outside of scalar");
1746
1747 if (!SvOK (length) || len + offset > svlen)
1748 len = svlen - offset;
1749
1750 {
1751 dREQ;
1752
1753 req->type = ix;
1754 req->sv2 = SvREFCNT_inc (data);
1755 req->ptr2 = (char *)svptr + offset;
1756 req->size = len;
1757 req->int1 = flags;
1758
1759 REQ_SEND;
1760 }
1761}
1762
1763void
1764aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1765 PPCODE:
1766{
1767 STRLEN svlen;
1768 char *svptr = SvPVbyte (data, svlen);
1769 UV len = SvUV (length);
1770
1771 if (offset < 0)
1772 offset += svlen;
1773
1774 if (offset < 0 || offset > svlen)
1775 croak ("offset outside of scalar");
1776
1777 if (!SvOK (length) || len + offset > svlen)
1778 len = svlen - offset;
1779
1780 {
1781 dREQ;
1782
1783 req->type = EIO_MLOCK;
1784 req->sv2 = SvREFCNT_inc (data);
1785 req->ptr2 = (char *)svptr + offset;
1786 req->size = len;
1787
1788 REQ_SEND;
1789 }
1790}
1791
1792void
1793aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1794 PPCODE:
1795{
1796 dREQ;
1797
1798 req->type = EIO_MLOCKALL;
1799 req->int1 = flags;
1800
1801 REQ_SEND;
1802}
1803
1804void
1805aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1806 PPCODE:
1807{
1808 int fd = s_fileno_croak (fh, 0);
1809 dREQ;
1810
1811 req->type = EIO_CUSTOM;
1812 req->sv1 = newSVsv (fh);
1813 req->int1 = fd;
1814
1815 req->feed = fiemap;
1816#if HAVE_FIEMAP
1817 /* keep our fingers crossed that the next two types are 64 bit */
1818 req->offs = start;
1819 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1820 req->int2 = flags;
1821 req->int3 = SvOK (count) ? SvIV (count) : -1;
1822#endif
1823
1824 REQ_SEND;
1825}
1826
1827void
1828aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1829 PPCODE:
1830{
1831 char *svptr = 0;
1832
1833 sv_clear_foreign (data);
1834
1835 if (length) /* known length, directly read into scalar */
1836 {
1837 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1838 svptr = sv_grow (data, length + 1);
1839 else if (SvCUR (data) < length)
1840 croak ("length outside of scalar, and cannot grow");
1841 else
1842 svptr = SvPVbyte_nolen (data);
1843 }
1844
1845 {
1846 dREQ;
1847
1848 req->type = EIO_SLURP;
1849 req_set_path1 (req, pathname);
1850 req->offs = offset;
1851 req->size = length;
1852 req->sv2 = SvREFCNT_inc (data);
1853 req->ptr2 = svptr;
1854
1855 if (!SvREADONLY (data))
1856 {
1857 SvREADONLY_on (data);
1858 req->flags |= FLAG_SV2_RO_OFF;
1859 }
1860
1861 REQ_SEND;
1862 }
1863}
1864
1865void
1866aio_busy (double delay, SV *callback = &PL_sv_undef)
1867 PPCODE:
1868{
1869 dREQ;
1870
1713 req->type = REQ_BUSY; 1871 req->type = EIO_BUSY;
1714 req->nv1 = delay < 0. ? 0. : delay; 1872 req->nv1 = delay < 0. ? 0. : delay;
1715 1873
1716 REQ_SEND; 1874 REQ_SEND;
1717} 1875}
1718 1876
1719void 1877void
1720aio_group (SV *callback=&PL_sv_undef) 1878aio_group (SV *callback = &PL_sv_undef)
1721 PROTOTYPE: ;$
1722 PPCODE: 1879 PPCODE:
1723{ 1880{
1724 dREQ; 1881 dREQ;
1725 1882
1726 req->type = REQ_GROUP; 1883 req->type = EIO_GROUP;
1727 1884
1885 PUTBACK;
1728 req_send (req); 1886 req_submit (req);
1887 SPAGAIN;
1888
1729 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1889 XPUSHs (req_sv (req, aio_grp_stash));
1730} 1890}
1731 1891
1732void 1892void
1733aio_nop (SV *callback=&PL_sv_undef) 1893aio_nop (SV *callback = &PL_sv_undef)
1894 ALIAS:
1895 aio_nop = EIO_NOP
1896 aio_sync = EIO_SYNC
1734 PPCODE: 1897 PPCODE:
1735{ 1898{
1736 dREQ; 1899 dREQ;
1737 1900
1738 req->type = REQ_NOP; 1901 req->type = ix;
1739 1902
1740 REQ_SEND; 1903 REQ_SEND;
1741} 1904}
1742 1905
1743int 1906int
1744aioreq_pri (int pri = 0) 1907aioreq_pri (int pri = NO_INIT)
1745 PROTOTYPE: ;$
1746 CODE: 1908 CODE:
1747 RETVAL = next_pri - PRI_BIAS; 1909 RETVAL = next_pri;
1748 if (items > 0) 1910 if (items > 0)
1749 { 1911 {
1750 if (pri < PRI_MIN) pri = PRI_MIN; 1912 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1751 if (pri > PRI_MAX) pri = PRI_MAX; 1913 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1752 next_pri = pri + PRI_BIAS; 1914 next_pri = pri;
1753 } 1915 }
1754 OUTPUT: 1916 OUTPUT:
1755 RETVAL 1917 RETVAL
1756 1918
1757void 1919void
1758aioreq_nice (int nice = 0) 1920aioreq_nice (int nice = 0)
1759 CODE: 1921 CODE:
1760 nice = next_pri - nice; 1922 nice = next_pri - nice;
1761 if (nice < PRI_MIN) nice = PRI_MIN; 1923 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1762 if (nice > PRI_MAX) nice = PRI_MAX; 1924 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1763 next_pri = nice + PRI_BIAS; 1925 next_pri = nice;
1764 1926
1765void 1927void
1766flush () 1928flush ()
1767 PROTOTYPE:
1768 CODE: 1929 CODE:
1769 while (nreqs) 1930 while (eio_nreqs ())
1770 { 1931 {
1771 poll_wait (); 1932 poll_wait ();
1772 poll_cb (); 1933 poll_cb ();
1773 } 1934 }
1774 1935
1775int 1936int
1776poll() 1937poll ()
1777 PROTOTYPE:
1778 CODE: 1938 CODE:
1779 poll_wait (); 1939 poll_wait ();
1780 RETVAL = poll_cb (); 1940 RETVAL = poll_cb ();
1781 OUTPUT: 1941 OUTPUT:
1782 RETVAL 1942 RETVAL
1783 1943
1784int 1944int
1785poll_fileno() 1945poll_fileno ()
1786 PROTOTYPE:
1787 CODE: 1946 CODE:
1788 RETVAL = respipe [0]; 1947 RETVAL = s_epipe_fd (&respipe);
1789 OUTPUT: 1948 OUTPUT:
1790 RETVAL 1949 RETVAL
1791 1950
1792int 1951int
1793poll_cb(...) 1952poll_cb (...)
1794 PROTOTYPE: 1953 PROTOTYPE:
1795 CODE: 1954 CODE:
1796 RETVAL = poll_cb (); 1955 RETVAL = poll_cb ();
1797 OUTPUT: 1956 OUTPUT:
1798 RETVAL 1957 RETVAL
1799 1958
1800void 1959void
1801poll_wait() 1960poll_wait ()
1802 PROTOTYPE:
1803 CODE: 1961 CODE:
1804 poll_wait (); 1962 poll_wait ();
1805 1963
1806void
1807setsig (int signum = SIGIO)
1808 PROTOTYPE: ;$
1809 CODE:
1810{
1811 if (block_sig_level)
1812 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1813
1814 LOCK (reslock);
1815 main_tid = pthread_self ();
1816 main_sig = signum;
1817 UNLOCK (reslock);
1818
1819 if (main_sig && npending)
1820 pthread_kill (main_tid, main_sig);
1821}
1822
1823void
1824aio_block (SV *cb)
1825 PROTOTYPE: &
1826 PPCODE:
1827{
1828 int count;
1829
1830 block_sig ();
1831 PUSHMARK (SP);
1832 PUTBACK;
1833 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1834 SPAGAIN;
1835 unblock_sig ();
1836
1837 if (SvTRUE (ERRSV))
1838 croak (0);
1839
1840 XSRETURN (count);
1841}
1842
1843int 1964int
1844nreqs() 1965nreqs ()
1845 PROTOTYPE:
1846 CODE: 1966 CODE:
1847 RETVAL = nreqs; 1967 RETVAL = eio_nreqs ();
1848 OUTPUT: 1968 OUTPUT:
1849 RETVAL 1969 RETVAL
1850 1970
1851int 1971int
1852nready() 1972nready ()
1853 PROTOTYPE:
1854 CODE: 1973 CODE:
1855 RETVAL = get_nready (); 1974 RETVAL = eio_nready ();
1856 OUTPUT: 1975 OUTPUT:
1857 RETVAL 1976 RETVAL
1858 1977
1859int 1978int
1860npending() 1979npending ()
1861 PROTOTYPE:
1862 CODE: 1980 CODE:
1863 RETVAL = get_npending (); 1981 RETVAL = eio_npending ();
1864 OUTPUT: 1982 OUTPUT:
1865 RETVAL 1983 RETVAL
1866 1984
1867int 1985int
1868nthreads() 1986nthreads ()
1869 PROTOTYPE:
1870 CODE: 1987 CODE:
1871 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1988 RETVAL = eio_nthreads ();
1872 RETVAL = started;
1873 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1874 OUTPUT: 1989 OUTPUT:
1875 RETVAL 1990 RETVAL
1876 1991
1992int
1993fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1994 CODE:
1995 RETVAL = posix_fadvise (fh, offset, length, advice);
1996 OUTPUT:
1997 RETVAL
1998
1999IV
2000sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2001 CODE:
2002 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2003 OUTPUT:
2004 RETVAL
2005
2006void
2007mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2008 PPCODE:
2009 sv_clear_foreign (scalar);
2010{
2011 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2012 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2013 if (addr == (void *)-1)
2014 XSRETURN_NO;
2015
2016 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2017
2018 if (!(prot & PROT_WRITE))
2019 SvREADONLY_on (scalar);
2020
2021 XSRETURN_YES;
2022}
2023
2024void
2025munmap (SV *scalar)
2026 CODE:
2027 sv_clear_foreign (scalar);
2028
2029int
2030madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2031 ALIAS:
2032 mprotect = 1
2033 CODE:
2034{
2035 STRLEN svlen;
2036 void *addr = SvPVbyte (scalar, svlen);
2037 STRLEN len = SvUV (length);
2038
2039 if (offset < 0)
2040 offset += svlen;
2041
2042 if (offset < 0 || offset > svlen)
2043 croak ("offset outside of scalar");
2044
2045 if (!SvOK (length) || len + offset > svlen)
2046 len = svlen - offset;
2047
2048 addr = (void *)(((intptr_t)addr) + offset);
2049 eio_page_align (&addr, &len);
2050
2051 switch (ix)
2052 {
2053 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2054 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2055 }
2056}
2057 OUTPUT:
2058 RETVAL
2059
2060int
2061munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2062 CODE:
2063{
2064 STRLEN svlen;
2065 void *addr = SvPVbyte (scalar, svlen);
2066 size_t len = SvUV (length);
2067
2068 if (offset < 0)
2069 offset += svlen;
2070
2071 if (offset < 0 || offset > svlen)
2072 croak ("offset outside of scalar");
2073
2074 if (!SvOK (length) || len + offset > svlen)
2075 len = svlen - offset;
2076
2077 addr = (void *)(((intptr_t)addr) + offset);
2078 eio_page_align (&addr, &len);
2079#if _POSIX_MEMLOCK_RANGE
2080 RETVAL = munlock (addr, len);
2081#else
2082 RETVAL = EIO_ENOSYS ();
2083#endif
2084}
2085 OUTPUT:
2086 RETVAL
2087
2088int
2089munlockall ()
2090 CODE:
2091#if _POSIX_MEMLOCK
2092 munlockall ();
2093#else
2094 RETVAL = EIO_ENOSYS ();
2095#endif
2096 OUTPUT:
2097 RETVAL
2098
2099int
2100splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2101 CODE:
2102{
2103#if HAVE_LINUX_SPLICE
2104 loff_t off_in_, off_out_;
2105 RETVAL = splice (
2106 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2107 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2108 length, flags
2109 );
2110#else
2111 RETVAL = EIO_ENOSYS ();
2112#endif
2113}
2114 OUTPUT:
2115 RETVAL
2116
2117int
2118tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2119 CODE:
2120#if HAVE_LINUX_SPLICE
2121 RETVAL = tee (rfh, wfh, length, flags);
2122#else
2123 RETVAL = EIO_ENOSYS ();
2124#endif
2125 OUTPUT:
2126 RETVAL
2127
2128int
2129pipesize (aio_rfd rfh, int new_size = -1)
2130 PROTOTYPE: $;$
2131 CODE:
2132#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2133 if (new_size >= 0)
2134 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2135 else
2136 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2137#else
2138 errno = ENOSYS;
2139 RETVAL = -1;
2140#endif
2141 OUTPUT:
2142 RETVAL
2143
2144void
2145pipe2 (int flags = 0)
2146 PROTOTYPE: ;$
2147 PPCODE:
2148{
2149 int fd[2];
2150 int res;
2151
2152 if (flags)
2153#if HAVE_PIPE2
2154 res = pipe2 (fd, flags);
2155#else
2156 res = (errno = ENOSYS, -1);
2157#endif
2158 else
2159 res = pipe (fd);
2160
2161 if (!res)
2162 {
2163 EXTEND (SP, 2);
2164 PUSHs (newmortalFH (fd[0], O_RDONLY));
2165 PUSHs (newmortalFH (fd[1], O_WRONLY));
2166 }
2167}
2168
2169void
2170eventfd (unsigned int initval = 0, int flags = 0)
2171 PPCODE:
2172{
2173 int fd;
2174#if HAVE_EVENTFD
2175 fd = eventfd (initval, flags);
2176#else
2177 fd = (errno = ENOSYS, -1);
2178#endif
2179
2180 XPUSHs (newmortalFH (fd, O_RDWR));
2181}
2182
2183UV
2184get_fdlimit ()
2185 CODE:
2186#if HAVE_RLIMITS
2187 struct rlimit rl;
2188 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2189 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2190#endif
2191 XSRETURN_UNDEF;
2192 OUTPUT:
2193 RETVAL
2194
2195void
2196min_fdlimit (UV limit = 0x7fffffffU)
2197 CODE:
2198{
2199#if HAVE_RLIMITS
2200 struct rlimit rl;
2201 rlim_t orig_rlim_max;
2202 UV bit;
2203
2204 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2205 goto fail;
2206
2207 if (rl.rlim_cur == RLIM_INFINITY)
2208 XSRETURN_YES;
2209
2210 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2211
2212 if (rl.rlim_cur < limit)
2213 {
2214 rl.rlim_cur = limit;
2215
2216 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2217 rl.rlim_max = rl.rlim_cur;
2218 }
2219
2220 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2221 XSRETURN_YES;
2222
2223 if (errno == EPERM)
2224 {
2225 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2226 /* our limit overflows a system-wide limit */
2227 /* try an adaptive algorithm, but do not lower the hardlimit */
2228 rl.rlim_max = 0;
2229 for (bit = 0x40000000U; bit; bit >>= 1)
2230 {
2231 rl.rlim_max |= bit;
2232 rl.rlim_cur = rl.rlim_max;
2233
2234 /* nevr decrease the hard limit */
2235 if (rl.rlim_max < orig_rlim_max)
2236 break;
2237
2238 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2239 rl.rlim_max &= ~bit; /* too high, remove bit again */
2240 }
2241
2242 /* now, raise the soft limit to the max permitted */
2243 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2244 {
2245 rl.rlim_cur = rl.rlim_max;
2246 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2247 errno = EPERM;
2248 }
2249 }
2250#endif
2251 fail:
2252 XSRETURN_UNDEF;
2253}
2254
2255void _on_next_submit (SV *cb)
2256 CODE:
2257 SvREFCNT_dec (on_next_submit);
2258 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2259
1877PROTOTYPES: DISABLE 2260PROTOTYPES: DISABLE
2261
2262MODULE = IO::AIO PACKAGE = IO::AIO::WD
2263
2264BOOT:
2265{
2266 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2267 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2268}
2269
2270void
2271DESTROY (SV *self)
2272 CODE:
2273{
2274 aio_wd wd = SvAIO_WD (self);
2275#if HAVE_AT
2276 {
2277 SV *callback = &PL_sv_undef;
2278 dREQ; /* clobbers next_pri :/ */
2279 next_pri = req->pri; /* restore next_pri */
2280 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2281 req->type = EIO_WD_CLOSE;
2282 req->wd = wd;
2283 REQ_SEND;
2284 }
2285#else
2286 eio_wd_close_sync (wd);
2287#endif
2288}
1878 2289
1879MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2290MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1880 2291
1881void 2292void
1882cancel (aio_req_ornot req) 2293cancel (aio_req_ornot req)
1883 CODE: 2294 CODE:
1884 req_cancel (req); 2295 eio_cancel (req);
1885 2296
1886void 2297void
1887cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2298cb (aio_req_ornot req, SV *callback = NO_INIT)
1888 CODE: 2299 PPCODE:
2300{
2301 if (GIMME_V != G_VOID)
2302 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2303
2304 if (items > 1)
2305 {
2306 SV *cb_cv = get_cb (callback);
2307
1889 SvREFCNT_dec (req->callback); 2308 SvREFCNT_dec (req->callback);
1890 req->callback = newSVsv (callback); 2309 req->callback = SvREFCNT_inc (cb_cv);
2310 }
2311}
1891 2312
1892MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2313MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1893 2314
1894void 2315void
1895add (aio_req grp, ...) 2316add (aio_req grp, ...)
1896 PPCODE: 2317 PPCODE:
1897{ 2318{
1898 int i; 2319 int i;
1899 aio_req req;
1900
1901 if (main_sig && !block_sig_level)
1902 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1903 2320
1904 if (grp->int1 == 2) 2321 if (grp->int1 == 2)
1905 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2322 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1906 2323
1907 for (i = 1; i < items; ++i ) 2324 for (i = 1; i < items; ++i )
1908 { 2325 {
2326 aio_req req;
2327
1909 if (GIMME_V != G_VOID) 2328 if (GIMME_V != G_VOID)
1910 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2329 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1911 2330
1912 req = SvAIO_REQ (ST (i)); 2331 req = SvAIO_REQ (ST (i));
1913 2332
1914 if (req) 2333 if (req)
1915 { 2334 eio_grp_add (grp, req);
1916 ++grp->size;
1917 req->grp = grp;
1918
1919 req->grp_prev = 0;
1920 req->grp_next = grp->grp_first;
1921
1922 if (grp->grp_first)
1923 grp->grp_first->grp_prev = req;
1924
1925 grp->grp_first = req;
1926 }
1927 } 2335 }
1928} 2336}
1929 2337
1930void 2338void
1931cancel_subs (aio_req_ornot req) 2339cancel_subs (aio_req_ornot req)
… …
1940 AV *av; 2348 AV *av;
1941 2349
1942 grp->errorno = errno; 2350 grp->errorno = errno;
1943 2351
1944 av = newAV (); 2352 av = newAV ();
2353 av_extend (av, items - 1);
1945 2354
1946 for (i = 1; i < items; ++i ) 2355 for (i = 1; i < items; ++i )
1947 av_push (av, newSVsv (ST (i))); 2356 av_push (av, newSVsv (ST (i)));
1948 2357
1949 SvREFCNT_dec (grp->sv1); 2358 SvREFCNT_dec (grp->sv1);
… …
1956 grp->errorno = errorno; 2365 grp->errorno = errorno;
1957 2366
1958void 2367void
1959limit (aio_req grp, int limit) 2368limit (aio_req grp, int limit)
1960 CODE: 2369 CODE:
1961 grp->int2 = limit; 2370 eio_grp_limit (grp, limit);
1962 aio_grp_feed (grp);
1963 2371
1964void 2372void
1965feed (aio_req grp, SV *callback=&PL_sv_undef) 2373feed (aio_req grp, SV *callback = &PL_sv_undef)
1966 CODE: 2374 CODE:
1967{ 2375{
1968 SvREFCNT_dec (grp->sv2); 2376 SvREFCNT_dec (grp->sv2);
1969 grp->sv2 = newSVsv (callback); 2377 grp->sv2 = newSVsv (callback);
2378 grp->feed = aio_grp_feed;
1970 2379
1971 if (grp->int2 <= 0) 2380 if (grp->int2 <= 0)
1972 grp->int2 = 2; 2381 grp->int2 = 2;
1973 2382
1974 aio_grp_feed (grp); 2383 eio_grp_limit (grp, grp->int2);
1975} 2384}
1976 2385

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