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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.100 by root, Fri Jun 1 06:00:40 2007 UTC vs.
Revision 1.264 by root, Tue Aug 14 11:44:52 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#if !defined mg_findext
10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
11#endif
10 12
11#include <stddef.h> 13#include <stddef.h>
12#include <stdlib.h> 14#include <stdlib.h>
13#include <errno.h> 15#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
17#include <sys/stat.h> 18#include <sys/stat.h>
18#include <limits.h> 19#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 20#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 21#include <sched.h>
22
23#if HAVE_SYS_SYSMACROS_H
24# include <sys/sysmacros.h>
25#endif
26
27#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
28# include <sys/mman.h>
29#endif
30
31/* the incompetent fool that created musl keeps __linux__, refuses
32 * to implement any linux standard apis, and also has no way to test
33 * for his broken iplementation. don't complain to me if this fails
34 * for you.
35 */
36#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
37# include <linux/fs.h>
38# ifdef FS_IOC_FIEMAP
39# include <linux/types.h>
40# include <linux/fiemap.h>
41# define HAVE_FIEMAP 1
42# endif
43#endif
44
45/* perl namespace pollution */
46#undef VERSION
47
48/* perl stupidly overrides readdir and maybe others */
49/* with thread-unsafe versions, imagine that :( */
50#undef readdir
51#undef opendir
52#undef closedir
53
54#ifdef _WIN32
55
56 // perl overrides all those nice libc functions
57
58 #undef malloc
59 #undef free
60 #undef open
61 #undef read
62 #undef write
63 #undef send
64 #undef recv
65 #undef stat
66 #undef lstat
67 #undef fstat
68 #undef truncate
69 #undef ftruncate
70 #undef open
71 #undef link
72 #undef close
73 #undef unlink
74 #undef mkdir
75 #undef rmdir
76 #undef rename
77 #undef lseek
78 #undef opendir
79 #undef readdir
80 #undef closedir
81 #undef chmod
82 #undef fchmod
83 #undef dup
84 #undef dup2
85 #undef abort
86 #undef pipe
87
88 #define EIO_STRUCT_STAT struct _stati64
89 #define EIO_STRUCT_STATI64
90
91#else
92
93 #include <sys/time.h>
94 #include <sys/select.h>
95 #include <unistd.h>
23#include <utime.h> 96 #include <utime.h>
97 #include <signal.h>
24 98
25#if HAVE_SENDFILE 99 #define EIO_STRUCT_STAT Stat_t
26# if __linux 100
101#endif
102
103/*****************************************************************************/
104
105#if __GNUC__ >= 3
106# define expect(expr,value) __builtin_expect ((expr),(value))
107#else
108# define expect(expr,value) (expr)
109#endif
110
111#define expect_false(expr) expect ((expr) != 0, 0)
112#define expect_true(expr) expect ((expr) != 0, 1)
113
114/*****************************************************************************/
115
116#include "config.h"
117
118#if HAVE_ST_XTIMENSEC
119# define ATIMENSEC PL_statcache.st_atimensec
120# define MTIMENSEC PL_statcache.st_mtimensec
121# define CTIMENSEC PL_statcache.st_ctimensec
122#elif HAVE_ST_XTIMESPEC
123# define ATIMENSEC PL_statcache.st_atim.tv_nsec
124# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
125# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
126#else
127# define ATIMENSEC 0
128# define MTIMENSEC 0
129# define CTIMENSEC 0
130#endif
131
132#include "schmorp.h"
133
134#if HAVE_EVENTFD
27# include <sys/sendfile.h> 135# include <sys/eventfd.h>
28# elif __freebsd 136#endif
29# include <sys/socket.h> 137
138#if HAVE_TIMERFD
30# include <sys/uio.h> 139# include <sys/timerfd.h>
31# elif __hpux 140#endif
141
142#if HAVE_RLIMITS
143 #include <sys/time.h>
32# include <sys/socket.h> 144 #include <sys/resource.h>
33# elif __solaris /* not yet */ 145#endif
34# include <sys/sendfile.h> 146
147typedef SV SV8; /* byte-sv, used for argument-checking */
148typedef int aio_rfd; /* read file desriptor */
149typedef int aio_wfd; /* write file descriptor */
150
151static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
152
153#define EIO_REQ_MEMBERS \
154 SV *callback; \
155 SV *sv1, *sv2; \
156 SV *sv3, *sv4; \
157 STRLEN stroffset; \
158 SV *self;
159
160#define EIO_NO_WRAPPERS 1
161
162#include "libeio/eio.h"
163
164static int req_invoke (eio_req *req);
165#define EIO_FINISH(req) req_invoke (req)
166static void req_destroy (eio_req *grp);
167#define EIO_DESTROY(req) req_destroy (req)
168
169#include "libeio/eio.c"
170
171#if !HAVE_POSIX_FADVISE
172# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
173#endif
174
175#if !HAVE_POSIX_MADVISE
176# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
177#endif
178
179#ifndef MAP_ANONYMOUS
180# ifdef MAP_ANON
181# define MAP_ANONYMOUS MAP_ANON
35# else 182# else
36# error sendfile support requested but not available 183# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 184# endif
38#endif 185#endif
39 186
40/* number of seconds after which idle threads exit */ 187#ifndef makedev
41#define IDLE_TIMEOUT 10 188# define makedev(maj,min) (((maj) << 8) | (min))
42
43/* used for struct dirent, AIX doesn't provide it */
44#ifndef NAME_MAX
45# define NAME_MAX 4096
46#endif 189#endif
190#ifndef major
191# define major(dev) ((dev) >> 8)
192#endif
193#ifndef minor
194# define minor(dev) ((dev) & 0xff)
195#endif
47 196
48/* buffer size for various temporary buffers */ 197#if PAGESIZE <= 0
49#define AIO_BUFSIZE 65536 198# define PAGESIZE sysconf (_SC_PAGESIZE)
199#endif
50 200
51#define dBUF \ 201/*****************************************************************************/
52 char *aio_buf; \ 202
53 LOCK (wrklock); \ 203#if !_POSIX_MAPPED_FILES
54 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 204# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
55 UNLOCK (wrklock); \ 205# define munmap(addr,length) EIO_ENOSYS ()
56 if (!aio_buf) \ 206#endif
207
208#if !_POSIX_MEMORY_PROTECTION
209# define mprotect(addr,len,prot) EIO_ENOSYS ()
210#endif
211
212#if !MREMAP_MAYMOVE
213# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
214#endif
215
216#define FOREIGN_MAGIC PERL_MAGIC_ext
217
218static int ecb_cold
219mmap_free (pTHX_ SV *sv, MAGIC *mg)
220{
221 int old_errno = errno;
222 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
223 errno = old_errno;
224
225 mg->mg_obj = 0; /* just in case */
226
227 SvREADONLY_off (sv);
228
229 if (SvPVX (sv) != mg->mg_ptr)
230 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
231
232 SvCUR_set (sv, 0);
233 SvPVX (sv) = 0;
234 SvOK_off (sv);
235
57 return -1; 236 return 0;
237}
58 238
59typedef SV SV8; /* byte-sv, used for argument-checking */ 239static MGVTBL mmap_vtbl = {
60 240 0, 0, 0, 0, mmap_free
61enum {
62 REQ_QUIT,
63 REQ_OPEN, REQ_CLOSE,
64 REQ_READ, REQ_WRITE, REQ_READAHEAD,
65 REQ_SENDFILE,
66 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
67 REQ_UTIME, REQ_FUTIME, /* must be consecutive */
68 REQ_CHMOD, REQ_FCHMOD, /* must be consecutive */
69 REQ_CHOWN, REQ_FCHOWN, /* must be consecutive */
70 REQ_FSYNC, REQ_FDATASYNC,
71 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
72 REQ_MKNOD, REQ_READDIR,
73 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
74 REQ_GROUP, REQ_NOP,
75 REQ_BUSY,
76}; 241};
77 242
78#define AIO_REQ_KLASS "IO::AIO::REQ" 243static int ecb_cold
79#define AIO_GRP_KLASS "IO::AIO::GRP" 244sysfree_free (pTHX_ SV *sv, MAGIC *mg)
80
81typedef struct aio_cb
82{ 245{
83 struct aio_cb *volatile next; 246 free (mg->mg_ptr);
247 mg->mg_obj = 0; /* just in case */
84 248
85 SV *callback; 249 SvREADONLY_off (sv);
86 SV *sv1, *sv2;
87 void *ptr1, *ptr2;
88 off_t offs;
89 size_t size;
90 ssize_t result;
91 double nv1, nv2;
92 250
93 STRLEN stroffset; 251 if (SvPVX (sv) != mg->mg_ptr)
94 int type; 252 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
95 int int1, int2, int3;
96 int errorno;
97 mode_t mode; /* open */
98 253
99 unsigned char flags; 254 SvCUR_set (sv, 0);
100 unsigned char pri; 255 SvPVX (sv) = 0;
256 SvOK_off (sv);
101 257
102 SV *self; /* the perl counterpart of this request, if any */ 258 return 0;
103 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 259}
104} aio_cb;
105 260
106enum { 261static MGVTBL sysfree_vtbl = {
107 FLAG_CANCELLED = 0x01, /* request was cancelled */ 262 0, 0, 0, 0, sysfree_free
108 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
109 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
110}; 263};
111 264
112typedef aio_cb *aio_req; 265/*****************************************************************************/
113typedef aio_cb *aio_req_ornot;
114 266
115enum { 267/* helper: set scalar to foreign ptr with custom free */
116 PRI_MIN = -4, 268static void
117 PRI_MAX = 4, 269sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
118
119 DEFAULT_PRI = 0,
120 PRI_BIAS = -PRI_MIN,
121 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
122};
123
124#define AIO_TICKS ((1000000 + 1023) >> 10)
125
126static unsigned int max_poll_time = 0;
127static unsigned int max_poll_reqs = 0;
128
129/* calculcate time difference in ~1/AIO_TICKS of a second */
130static int tvdiff (struct timeval *tv1, struct timeval *tv2)
131{ 270{
132 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 271 sv_force_normal (sv);
133 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
134}
135 272
136static thread_t main_tid; 273 /* we store the length in mg_obj, as namlen is I32 :/ */
137static int main_sig; 274 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
138static int block_sig_level; 275 ->mg_obj = (SV *)length;
139 276
140void block_sig () 277 SvUPGRADE (sv, SVt_PV); /* nop... */
141{
142 sigset_t ss;
143 278
144 if (block_sig_level++) 279 if (SvLEN (sv))
280 Safefree (SvPVX (sv));
281
282 SvPVX (sv) = (char *)addr;
283 SvCUR_set (sv, length);
284 SvLEN_set (sv, 0);
285 SvPOK_only (sv);
286}
287
288static void
289sv_clear_foreign (SV *sv)
290{
291 /* todo: iterate over magic and only free ours, but of course */
292 /* the perl5porters will call that (correct) behaviour buggy */
293 sv_unmagic (sv, FOREIGN_MAGIC);
294}
295
296/*****************************************************************************/
297
298/* defines all sorts of constants to 0 unless they are already defined */
299/* also provides const_iv_ and const_niv_ macros for them */
300#include "def0.h"
301
302/*****************************************************************************/
303
304static void
305fiemap (eio_req *req)
306{
307 req->result = -1;
308
309#if HAVE_FIEMAP
310 /* assume some c99 */
311 struct fiemap *fiemap = 0;
312 size_t end_offset;
313 int count = req->int3;
314
315 req->flags |= EIO_FLAG_PTR1_FREE;
316
317 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
318 /* increase in 3.5kb steps */
319 if (count < 0)
320 count = 8;
321
322 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
323 errno = ENOMEM;
324 if (!fiemap)
145 return; 325 return;
146 326
147 if (!main_sig) 327 req->ptr1 = fiemap;
328
329 fiemap->fm_start = req->offs;
330 fiemap->fm_length = req->size;
331 fiemap->fm_flags = req->int2;
332 fiemap->fm_extent_count = count;
333
334 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
148 return; 335 return;
149 336
150 sigemptyset (&ss); 337 if (req->int3 >= 0 /* not autosizing */
151 sigaddset (&ss, main_sig); 338 || !fiemap->fm_mapped_extents /* no more extents */
152 pthread_sigmask (SIG_BLOCK, &ss, 0); 339 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
153} 340 goto done;
154 341
155void unblock_sig () 342 /* else we have to loop -
156{ 343 * it would be tempting (actually I tried that first) to just query the
157 sigset_t ss; 344 * number of extents needed, but linux often feels like not returning all
345 * extents, without telling us it left any out. this complicates
346 * this quite a bit.
347 */
158 348
159 if (--block_sig_level) 349 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
160 return;
161 350
162 if (!main_sig) 351 for (;;)
163 return;
164
165 sigemptyset (&ss);
166 sigaddset (&ss, main_sig);
167 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
168}
169
170static int next_pri = DEFAULT_PRI + PRI_BIAS;
171
172static unsigned int started, idle, wanted;
173
174/* worker threads management */
175static mutex_t wrklock = MUTEX_INIT;
176
177typedef struct worker {
178 /* locked by wrklock */
179 struct worker *prev, *next;
180
181 thread_t tid;
182
183 /* locked by reslock, reqlock or wrklock */
184 aio_req req; /* currently processed request */
185 void *dbuf;
186 DIR *dirp;
187} worker;
188
189static worker wrk_first = { &wrk_first, &wrk_first, 0 };
190
191static void worker_clear (worker *wrk)
192{
193 if (wrk->dirp)
194 { 352 {
195 closedir (wrk->dirp); 353 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
196 wrk->dirp = 0; 354 char scratch[3072];
197 } 355 struct fiemap *incmap = (struct fiemap *)scratch;
198 356
199 if (wrk->dbuf) 357 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
200 { 358 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
201 free (wrk->dbuf); 359 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
202 wrk->dbuf = 0; 360 incmap->fm_flags = fiemap->fm_flags;
203 } 361 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
204}
205 362
206static void worker_free (worker *wrk) 363 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
207{
208 wrk->next->prev = wrk->prev;
209 wrk->prev->next = wrk->next;
210
211 free (wrk);
212}
213
214static volatile unsigned int nreqs, nready, npending;
215static volatile unsigned int max_idle = 4;
216static volatile unsigned int max_outstanding = 0xffffffff;
217static int respipe [2];
218
219static mutex_t reslock = MUTEX_INIT;
220static mutex_t reqlock = MUTEX_INIT;
221static cond_t reqwait = COND_INIT;
222
223#if WORDACCESS_UNSAFE
224
225static unsigned int get_nready ()
226{
227 unsigned int retval;
228
229 LOCK (reqlock);
230 retval = nready;
231 UNLOCK (reqlock);
232
233 return retval;
234}
235
236static unsigned int get_npending ()
237{
238 unsigned int retval;
239
240 LOCK (reslock);
241 retval = npending;
242 UNLOCK (reslock);
243
244 return retval;
245}
246
247static unsigned int get_nthreads ()
248{
249 unsigned int retval;
250
251 LOCK (wrklock);
252 retval = started;
253 UNLOCK (wrklock);
254
255 return retval;
256}
257
258#else
259
260# define get_nready() nready
261# define get_npending() npending
262# define get_nthreads() started
263
264#endif
265
266/*
267 * a somewhat faster data structure might be nice, but
268 * with 8 priorities this actually needs <20 insns
269 * per shift, the most expensive operation.
270 */
271typedef struct {
272 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
273 int size;
274} reqq;
275
276static reqq req_queue;
277static reqq res_queue;
278
279int reqq_push (reqq *q, aio_req req)
280{
281 int pri = req->pri;
282 req->next = 0;
283
284 if (q->qe[pri])
285 {
286 q->qe[pri]->next = req;
287 q->qe[pri] = req;
288 }
289 else
290 q->qe[pri] = q->qs[pri] = req;
291
292 return q->size++;
293}
294
295aio_req reqq_shift (reqq *q)
296{
297 int pri;
298
299 if (!q->size)
300 return 0; 364 return;
301 365
302 --q->size; 366 if (!incmap->fm_mapped_extents)
367 goto done;
303 368
304 for (pri = NUM_PRI; pri--; ) 369 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
305 { 370 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
306 aio_req req = q->qs[pri]; 371 errno = ENOMEM;
307
308 if (req) 372 if (!fiemap)
373 return;
374
375 req->ptr1 = fiemap;
376
377 for (count = 0; count < incmap->fm_mapped_extents; ++count)
309 { 378 {
310 if (!(q->qs[pri] = req->next)) 379 struct fiemap_extent *e = incmap->fm_extents + count;
311 q->qe[pri] = 0;
312 380
313 return req; 381 if (e->fe_logical + e->fe_length >= end_offset)
382 goto done;
383
384 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
385
386 if (e->fe_flags & FIEMAP_EXTENT_LAST)
387 goto done;
388
314 } 389 }
315 } 390 }
316 391
317 abort (); 392done:
318} 393 req->result = 0;
319 394
320static int poll_cb (); 395#else
321static int req_invoke (aio_req req); 396 errno = ENOSYS;
397#endif
398}
399
400/*****************************************************************************/
401
402enum {
403 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
404};
405
406typedef eio_req *aio_req;
407typedef eio_req *aio_req_ornot;
408typedef eio_wd aio_wd;
409
410static SV *on_next_submit;
411static int next_pri = EIO_PRI_DEFAULT;
412static int max_outstanding;
413
414static s_epipe respipe;
415
322static void req_free (aio_req req); 416static void req_destroy (aio_req req);
323static void req_cancel (aio_req req); 417static void req_cancel (aio_req req);
324 418
419static void
420want_poll (void)
421{
422 /* write a dummy byte to the pipe so fh becomes ready */
423 s_epipe_signal (&respipe);
424}
425
426static void
427done_poll (void)
428{
429 /* read any signals sent by the worker threads */
430 s_epipe_drain (&respipe);
431}
432
325/* must be called at most once */ 433/* must be called at most once */
326static SV *req_sv (aio_req req, const char *klass) 434static SV *
435req_sv (aio_req req, HV *stash)
327{ 436{
328 if (!req->self) 437 if (!req->self)
329 { 438 {
330 req->self = (SV *)newHV (); 439 req->self = (SV *)newHV ();
331 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 440 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
332 } 441 }
333 442
334 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 443 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
335} 444}
336 445
337static aio_req SvAIO_REQ (SV *sv) 446static SV *
447newSVaio_wd (aio_wd wd)
448{
449 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
450}
451
452static aio_req
453SvAIO_REQ (SV *sv)
338{ 454{
339 MAGIC *mg; 455 MAGIC *mg;
340 456
341 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 457 if (!SvROK (sv)
458 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
459 || (SvSTASH (SvRV (sv)) != aio_grp_stash
460 && SvSTASH (SvRV (sv)) != aio_req_stash
461 && !sv_derived_from (sv, "IO::AIO::REQ")))
342 croak ("object of class " AIO_REQ_KLASS " expected"); 462 croak ("object of class IO::AIO::REQ expected");
343 463
344 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 464 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
345 465
346 return mg ? (aio_req)mg->mg_ptr : 0; 466 return mg ? (aio_req)mg->mg_ptr : 0;
347} 467}
348 468
469static aio_wd
470SvAIO_WD (SV *sv)
471{
472 if (!SvROK (sv)
473 || SvTYPE (SvRV (sv)) != SVt_PVMG
474 || SvSTASH (SvRV (sv)) != aio_wd_stash)
475 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
476
477 return (aio_wd)(long)SvIVX (SvRV (sv));
478}
479
480static SV *
481newmortalFH (int fd, int flags)
482{
483 if (fd < 0)
484 return &PL_sv_undef;
485
486 GV *gv = (GV *)sv_newmortal ();
487 char sym[64];
488 int symlen;
489
490 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
491 gv_init (gv, aio_stash, sym, symlen, 0);
492
493 symlen = snprintf (
494 sym,
495 sizeof (sym),
496 "%s&=%d",
497 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
498 fd
499 );
500
501 return do_open (gv, sym, symlen, 0, 0, 0, 0)
502 ? (SV *)gv : &PL_sv_undef;
503}
504
505static void
349static void aio_grp_feed (aio_req grp) 506aio_grp_feed (aio_req grp)
350{ 507{
351 block_sig (); 508 if (grp->sv2 && SvOK (grp->sv2))
352
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
354 { 509 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 510 dSP;
360 511
361 ENTER; 512 ENTER;
362 SAVETMPS; 513 SAVETMPS;
363 PUSHMARK (SP); 514 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 515 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 516 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 517 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 518 SPAGAIN;
368 FREETMPS; 519 FREETMPS;
369 LEAVE; 520 LEAVE;
370 }
371
372 /* stop if no progress has been made */
373 if (old_len == grp->size)
374 {
375 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0;
377 break;
378 }
379 } 521 }
380
381 unblock_sig ();
382} 522}
383 523
384static void aio_grp_dec (aio_req grp) 524static void
525req_submit (eio_req *req)
385{ 526{
386 --grp->size; 527 eio_submit (req);
387 528
388 /* call feeder, if applicable */ 529 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 530 {
394 block_sig (); 531 dSP;
532 SV *cb = sv_2mortal (on_next_submit);
395 533
396 if (!req_invoke (grp)) 534 on_next_submit = 0;
397 {
398 req_free (grp);
399 unblock_sig ();
400 croak (0);
401 }
402 535
403 req_free (grp); 536 PUSHMARK (SP);
404 unblock_sig (); 537 PUTBACK;
538 call_sv (cb, G_DISCARD | G_EVAL);
405 } 539 }
406} 540}
407 541
542static int
408static int req_invoke (aio_req req) 543req_invoke (eio_req *req)
409{ 544{
410 dSP;
411
412 if (req->flags & FLAG_SV2_RO_OFF) 545 if (req->flags & FLAG_SV2_RO_OFF)
413 SvREADONLY_off (req->sv2); 546 SvREADONLY_off (req->sv2);
414 547
415 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 548 if (!EIO_CANCELLED (req) && req->callback)
416 { 549 {
550 dSP;
551 static SV *sv_result_cache; /* caches the result integer SV */
552 SV *sv_result;
553
417 ENTER; 554 ENTER;
418 SAVETMPS; 555 SAVETMPS;
419 PUSHMARK (SP); 556 PUSHMARK (SP);
420 EXTEND (SP, 1); 557 EXTEND (SP, 1);
421 558
559 /* do not recreate the result IV from scratch each time */
560 if (expect_true (sv_result_cache))
561 {
562 sv_result = sv_result_cache; sv_result_cache = 0;
563 SvIV_set (sv_result, req->result);
564 SvIOK_only (sv_result);
565 }
566 else
567 {
568 sv_result = newSViv (req->result);
569 SvREADONLY_on (sv_result);
570 }
571
422 switch (req->type) 572 switch (req->type)
423 { 573 {
574 case EIO_WD_OPEN:
575 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
576 break;
577
424 case REQ_READDIR: 578 case EIO_READDIR:
425 { 579 {
426 SV *rv = &PL_sv_undef; 580 SV *rv = &PL_sv_undef;
427 581
428 if (req->result >= 0) 582 if (req->result >= 0)
429 { 583 {
430 int i; 584 int i;
431 char *buf = req->ptr2; 585 char *names = (char *)req->ptr2;
586 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
432 AV *av = newAV (); 587 AV *av = newAV ();
433 588
434 av_extend (av, req->result - 1); 589 av_extend (av, req->result - 1);
435 590
436 for (i = 0; i < req->result; ++i) 591 for (i = 0; i < req->result; ++i)
437 { 592 {
438 SV *sv = newSVpv (buf, 0); 593 if (req->int1 & EIO_READDIR_DENTS)
594 {
595 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
439 596
597 if (req->int1 & EIO_READDIR_CUSTOM2)
598 {
599 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
600 AV *avent = newAV ();
601
602 av_extend (avent, 2);
603
604 if (!sv_type [ent->type])
605 {
606 sv_type [ent->type] = newSViv (ent->type);
607 SvREADONLY_on (sv_type [ent->type]);
608 }
609
610 av_store (avent, 0, namesv);
611 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
612 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
613
614 av_store (av, i, newRV_noinc ((SV *)avent));
615 }
616 else
440 av_store (av, i, sv); 617 av_store (av, i, namesv);
618
619 ++ent;
620 }
621 else
622 {
623 SV *name = newSVpv (names, 0);
624 av_store (av, i, name);
441 buf += SvCUR (sv) + 1; 625 names += SvCUR (name) + 1;
626 }
442 } 627 }
443 628
444 rv = sv_2mortal (newRV_noinc ((SV *)av)); 629 rv = sv_2mortal (newRV_noinc ((SV *)av));
445 } 630 }
446 631
447 PUSHs (rv); 632 PUSHs (rv);
633
634 if (req->int1 & EIO_READDIR_CUSTOM1)
635 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
448 } 636 }
449 break; 637 break;
450 638
451 case REQ_OPEN: 639 case EIO_OPEN:
640 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
641 break;
642
643 case EIO_STATVFS:
644 case EIO_FSTATVFS:
452 { 645 {
453 /* convert fd to fh */ 646 SV *rv = &PL_sv_undef;
454 SV *fh; 647
648#ifndef _WIN32
649 if (req->result >= 0)
650 {
651 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
652 HV *hv = newHV ();
653 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
654 * chooses to make it a struct.
655 */
656 unsigned long fsid = 0;
657 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
455 658
456 PUSHs (sv_2mortal (newSViv (req->result))); 659 rv = sv_2mortal (newRV_noinc ((SV *)hv));
457 PUTBACK;
458 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
459 SPAGAIN;
460 660
461 fh = POPs; 661 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
462 PUSHMARK (SP); 662 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
663 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
664 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
665 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
666 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
667 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
668 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
669 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
670 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
671 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
672 }
673#endif
674
463 XPUSHs (fh); 675 PUSHs (rv);
464 } 676 }
677
465 break; 678 break;
466 679
467 case REQ_GROUP: 680 case EIO_GROUP:
468 req->int1 = 2; /* mark group as finished */ 681 req->int1 = 2; /* mark group as finished */
469 682
470 if (req->sv1) 683 if (req->sv1)
471 { 684 {
472 int i; 685 int i;
… …
476 for (i = 0; i <= AvFILL (av); ++i) 689 for (i = 0; i <= AvFILL (av); ++i)
477 PUSHs (*av_fetch (av, i, 0)); 690 PUSHs (*av_fetch (av, i, 0));
478 } 691 }
479 break; 692 break;
480 693
481 case REQ_NOP: 694 case EIO_NOP:
482 case REQ_BUSY: 695 case EIO_BUSY:
483 break; 696 break;
484 697
485 case REQ_READLINK: 698 case EIO_READLINK:
699 case EIO_REALPATH:
486 if (req->result > 0) 700 if (req->result > 0)
701 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
702 break;
703
704 case EIO_STAT:
705 case EIO_LSTAT:
706 case EIO_FSTAT:
707 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
708
709 if (!(PL_laststatval = req->result))
710 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
711 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
712
713 PUSHs (sv_result);
714 break;
715
716 case EIO_SEEK:
717 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
718 break;
719
720 case EIO_READ:
721 {
722 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
723 *SvEND (req->sv2) = 0;
724 SvPOK_only (req->sv2);
725 SvSETMAGIC (req->sv2);
726 PUSHs (sv_result);
727 }
728 break;
729
730 case EIO_SLURP:
731 {
732 if (req->result >= 0)
733 {
734 /* if length was originally not known, we steal the malloc'ed memory */
735 if (req->flags & EIO_FLAG_PTR2_FREE)
736 {
737 req->flags &= ~EIO_FLAG_PTR2_FREE;
738 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
739 }
740 else
741 {
742 SvCUR_set (req->sv2, req->result);
743 *SvEND (req->sv2) = 0;
744 SvPOK_only (req->sv2);
745 }
746
747 SvSETMAGIC (req->sv2);
748 }
749
750 PUSHs (sv_result);
751 }
752 break;
753
754 case EIO_CUSTOM:
755 if (req->feed == fiemap)
487 { 756 {
488 SvCUR_set (req->sv2, req->result); 757#if HAVE_FIEMAP
489 *SvEND (req->sv2) = 0;
490 PUSHs (req->sv2); 758 if (!req->result)
759 {
760 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
761
762 if (fiemap->fm_extent_count)
763 {
764 AV *av = newAV ();
765 int i;
766
767 while (fiemap->fm_mapped_extents)
768 {
769 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
770 AV *ext_av = newAV ();
771
772 av_store (ext_av, 3, newSVuv (extent->fe_flags));
773 av_store (ext_av, 2, newSVval64 (extent->fe_length));
774 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
775 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
776
777 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
778 }
779
780 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
781 }
782 else
783 {
784 SvIV_set (sv_result, fiemap->fm_mapped_extents);
785 PUSHs (sv_result);
786 }
787 }
788#endif
491 } 789 }
790 else
791 PUSHs (sv_result);
492 break; 792 break;
493 793
494 case REQ_STAT: 794 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
495 case REQ_LSTAT: 795 if (req->result > 0)
496 case REQ_FSTAT: 796 SvIV_set (sv_result, 0);
497 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 797 /* FALLTHROUGH */
498 PL_laststatval = req->result;
499 PL_statcache = *(Stat_t *)(req->ptr2);
500 PUSHs (sv_2mortal (newSViv (req->result)));
501 break;
502
503 case REQ_READ:
504 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
505 *SvEND (req->sv2) = 0;
506 PUSHs (sv_2mortal (newSViv (req->result)));
507 break;
508 798
509 default: 799 default:
510 PUSHs (sv_2mortal (newSViv (req->result))); 800 PUSHs (sv_result);
511 break; 801 break;
512 } 802 }
513 803
514 errno = req->errorno; 804 errno = req->errorno;
515 805
516 PUTBACK; 806 PUTBACK;
517 call_sv (req->callback, G_VOID | G_EVAL); 807 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
518 SPAGAIN; 808 SPAGAIN;
809
810 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
811 SvREFCNT_dec (sv_result);
812 else
813 sv_result_cache = sv_result;
519 814
520 FREETMPS; 815 FREETMPS;
521 LEAVE; 816 LEAVE;
817
818 PUTBACK;
522 } 819 }
523 820
524 if (req->grp)
525 {
526 aio_req grp = req->grp;
527
528 /* unlink request */
529 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
530 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
531
532 if (grp->grp_first == req)
533 grp->grp_first = req->grp_next;
534
535 aio_grp_dec (grp);
536 }
537
538 return !SvTRUE (ERRSV); 821 return !!SvTRUE (ERRSV);
539} 822}
540 823
541static void req_free (aio_req req) 824static void
825req_destroy (aio_req req)
542{ 826{
543 if (req->self) 827 if (req->self)
544 { 828 {
545 sv_unmagic (req->self, PERL_MAGIC_ext); 829 sv_unmagic (req->self, PERL_MAGIC_ext);
546 SvREFCNT_dec (req->self); 830 SvREFCNT_dec (req->self);
547 } 831 }
548 832
549 SvREFCNT_dec (req->sv1); 833 SvREFCNT_dec (req->sv1);
550 SvREFCNT_dec (req->sv2); 834 SvREFCNT_dec (req->sv2);
835 SvREFCNT_dec (req->sv3);
836 SvREFCNT_dec (req->sv4);
551 SvREFCNT_dec (req->callback); 837 SvREFCNT_dec (req->callback);
552 838
553 if (req->flags & FLAG_PTR2_FREE)
554 free (req->ptr2);
555
556 Safefree (req); 839 free (req);
557} 840}
558 841
842static void
559static void req_cancel_subs (aio_req grp) 843req_cancel_subs (aio_req grp)
560{ 844{
561 aio_req sub;
562
563 if (grp->type != REQ_GROUP) 845 if (grp->type != EIO_GROUP)
564 return; 846 return;
565 847
566 SvREFCNT_dec (grp->sv2); 848 SvREFCNT_dec (grp->sv2);
567 grp->sv2 = 0; 849 grp->sv2 = 0;
568 850
569 for (sub = grp->grp_first; sub; sub = sub->grp_next) 851 eio_grp_cancel (grp);
570 req_cancel (sub);
571} 852}
572 853
573static void req_cancel (aio_req req) 854static void ecb_cold
855create_respipe (void)
574{ 856{
575 req->flags |= FLAG_CANCELLED; 857 if (s_epipe_renew (&respipe))
576 858 croak ("IO::AIO: unable to initialize result pipe");
577 req_cancel_subs (req);
578} 859}
579 860
580static void *aio_proc(void *arg); 861static void
581 862poll_wait (void)
582static void start_thread (void)
583{ 863{
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 LOCK (wrklock);
590
591 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
592 {
593 wrk->prev = &wrk_first;
594 wrk->next = wrk_first.next;
595 wrk_first.next->prev = wrk;
596 wrk_first.next = wrk;
597 ++started;
598 }
599 else
600 free (wrk);
601
602 UNLOCK (wrklock);
603}
604
605static void maybe_start_thread ()
606{
607 if (get_nthreads () >= wanted)
608 return;
609
610 /* todo: maybe use idle here, but might be less exact */
611 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
612 return;
613
614 start_thread ();
615}
616
617static void req_send (aio_req req)
618{
619 block_sig ();
620
621 ++nreqs;
622
623 LOCK (reqlock);
624 ++nready;
625 reqq_push (&req_queue, req);
626 COND_SIGNAL (reqwait);
627 UNLOCK (reqlock);
628
629 unblock_sig ();
630
631 maybe_start_thread ();
632}
633
634static void end_thread (void)
635{
636 aio_req req;
637
638 Newz (0, req, 1, aio_cb);
639
640 req->type = REQ_QUIT;
641 req->pri = PRI_MAX + PRI_BIAS;
642
643 LOCK (reqlock);
644 reqq_push (&req_queue, req);
645 COND_SIGNAL (reqwait);
646 UNLOCK (reqlock);
647
648 LOCK (wrklock);
649 --started;
650 UNLOCK (wrklock);
651}
652
653static void set_max_idle (int nthreads)
654{
655 if (WORDACCESS_UNSAFE) LOCK (reqlock);
656 max_idle = nthreads <= 0 ? 1 : nthreads;
657 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
658}
659
660static void min_parallel (int nthreads)
661{
662 if (wanted < nthreads)
663 wanted = nthreads;
664}
665
666static void max_parallel (int nthreads)
667{
668 if (wanted > nthreads)
669 wanted = nthreads;
670
671 while (started > wanted)
672 end_thread ();
673}
674
675static void poll_wait ()
676{
677 fd_set rfd;
678
679 while (nreqs) 864 while (eio_nreqs ())
680 { 865 {
681 int size; 866 int size;
682 if (WORDACCESS_UNSAFE) LOCK (reslock); 867
868 X_LOCK (EIO_POOL->reslock);
683 size = res_queue.size; 869 size = EIO_POOL->res_queue.size;
684 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 870 X_UNLOCK (EIO_POOL->reslock);
685 871
686 if (size) 872 if (size)
687 return; 873 return;
688 874
689 maybe_start_thread (); 875 etp_maybe_start_thread (EIO_POOL);
690 876
691 FD_ZERO(&rfd); 877 s_epipe_wait (&respipe);
692 FD_SET(respipe [0], &rfd);
693
694 select (respipe [0] + 1, &rfd, 0, 0, 0);
695 } 878 }
696} 879}
697 880
698static int poll_cb () 881static int
882poll_cb (void)
699{ 883{
700 dSP;
701 int count = 0;
702 int maxreqs = max_poll_reqs;
703 int do_croak = 0;
704 struct timeval tv_start, tv_now;
705 aio_req req;
706
707 if (max_poll_time)
708 gettimeofday (&tv_start, 0);
709
710 block_sig ();
711
712 for (;;) 884 for (;;)
713 { 885 {
714 for (;;) 886 int res = eio_poll ();
887
888 if (res > 0)
889 croak (0);
890
891 if (!max_outstanding || max_outstanding > eio_nreqs ())
892 return res;
893
894 poll_wait ();
895 }
896}
897
898static void ecb_cold
899reinit (void)
900{
901 create_respipe ();
902
903 if (eio_init (want_poll, done_poll) < 0)
904 croak ("IO::AIO: unable to initialise eio library");
905}
906
907/*****************************************************************************/
908
909static SV *
910get_cb (SV *cb_sv)
911{
912 SvGETMAGIC (cb_sv);
913 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
914}
915
916static aio_req ecb_noinline
917dreq (SV *callback)
918{
919 SV *cb_cv;
920 aio_req req;
921 int req_pri = next_pri;
922 next_pri = EIO_PRI_DEFAULT;
923
924 cb_cv = get_cb (callback);
925
926 req = calloc (sizeof (*req), 1);
927 if (!req)
928 croak ("out of memory during eio_req allocation");
929
930 req->callback = SvREFCNT_inc (cb_cv);
931 req->pri = req_pri;
932
933 return req;
934}
935
936#define dREQ \
937 aio_req req = dreq (callback); \
938
939#define REQ_SEND \
940 PUTBACK; \
941 req_submit (req); \
942 SPAGAIN; \
943 \
944 if (GIMME_V != G_VOID) \
945 XPUSHs (req_sv (req, aio_req_stash));
946
947ecb_inline void
948req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
949{
950 if (expect_false (SvROK (path)))
951 {
952 SV *rv = SvRV (path);
953 SV *wdob;
954
955 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
715 { 956 {
716 maybe_start_thread (); 957 path = AvARRAY (rv)[1];
958 wdob = AvARRAY (rv)[0];
717 959
718 LOCK (reslock); 960 if (SvOK (wdob))
719 req = reqq_shift (&res_queue);
720
721 if (req)
722 { 961 {
723 --npending; 962 *wd = SvAIO_WD (wdob);
724 963 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
725 if (!res_queue.size)
726 {
727 /* read any signals sent by the worker threads */
728 char buf [4];
729 while (read (respipe [0], buf, 4) == 4)
730 ;
731 }
732 }
733
734 UNLOCK (reslock);
735
736 if (!req)
737 break;
738
739 --nreqs;
740
741 if (req->type == REQ_GROUP && req->size)
742 {
743 req->int1 = 1; /* mark request as delayed */
744 continue;
745 } 964 }
746 else 965 else
747 { 966 *wd = EIO_INVALID_WD;
748 if (!req_invoke (req))
749 {
750 req_free (req);
751 unblock_sig ();
752 croak (0);
753 }
754
755 count++;
756 }
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 } 967 }
968 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
969 {
970 *wd = (aio_wd)(long)SvIVX (rv);
971 *wdsv = SvREFCNT_inc_NN (rv);
972 *ptr = ".";
973 return; /* path set to "." */
974 }
975 else
976 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
977 }
771 978
772 if (nreqs <= max_outstanding) 979 *pathsv = newSVsv (path);
980 *ptr = SvPVbyte_nolen (*pathsv);
981}
982
983static void ecb_noinline
984req_set_path1 (aio_req req, SV *path)
985{
986 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
987}
988
989static void ecb_noinline
990req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
991{
992 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
993
994 switch (SvTYPE (rv))
995 {
996 case SVt_PVIO:
997 case SVt_PVLV:
998 case SVt_PVGV:
999 req->type = type_fh;
1000 req->sv1 = newSVsv (fh_or_path);
1001 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
773 break; 1002 break;
774 1003
775 poll_wait (); 1004 default:
776 1005 req->type = type_path;
777 ++maxreqs; 1006 req_set_path1 (req, fh_or_path);
1007 break;
778 } 1008 }
779
780 unblock_sig ();
781 return count;
782}
783
784static void create_pipe ()
785{
786 if (pipe (respipe))
787 croak ("unable to initialize result pipe");
788
789 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
790 croak ("cannot set result pipe to nonblocking mode");
791
792 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
793 croak ("cannot set result pipe to nonblocking mode");
794} 1009}
795 1010
796/*****************************************************************************/ 1011/*****************************************************************************/
797/* work around various missing functions */
798 1012
799#if !HAVE_PREADWRITE 1013static void
800# define pread aio_pread 1014ts_set (struct timespec *ts, NV value)
801# define pwrite aio_pwrite
802
803/*
804 * make our pread/pwrite safe against themselves, but not against
805 * normal read/write by using a mutex. slows down execution a lot,
806 * but that's your problem, not mine.
807 */
808static mutex_t preadwritelock = MUTEX_INIT;
809
810static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
811{ 1015{
812 ssize_t res; 1016 ts->tv_sec = value;
813 off_t ooffset; 1017 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
814
815 LOCK (preadwritelock);
816 ooffset = lseek (fd, 0, SEEK_CUR);
817 lseek (fd, offset, SEEK_SET);
818 res = read (fd, buf, count);
819 lseek (fd, ooffset, SEEK_SET);
820 UNLOCK (preadwritelock);
821
822 return res;
823} 1018}
824 1019
825static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1020static NV
1021ts_get (const struct timespec *ts)
826{ 1022{
827 ssize_t res; 1023 return ts->tv_sec + ts->tv_nsec * 1e-9;
828 off_t ooffset;
829
830 LOCK (preadwritelock);
831 ooffset = lseek (fd, 0, SEEK_CUR);
832 lseek (fd, offset, SEEK_SET);
833 res = write (fd, buf, count);
834 lseek (fd, offset, SEEK_SET);
835 UNLOCK (preadwritelock);
836
837 return res;
838}
839#endif
840
841#ifndef HAVE_FUTIMES
842
843# define utimes(path,times) aio_utimes (path, times)
844# define futimes(fd,times) aio_futimes (fd, times)
845
846int aio_utimes (const char *filename, const struct timeval times[2])
847{
848 if (times)
849 {
850 struct utimbuf buf;
851
852 buf.actime = times[0].tv_sec;
853 buf.modtime = times[1].tv_sec;
854
855 return utime (filename, &buf);
856 }
857 else
858 return utime (filename, 0);
859}
860
861int aio_futimes (int fd, const struct timeval tv[2])
862{
863 errno = ENOSYS;
864 return -1;
865}
866
867#endif
868
869#if !HAVE_FDATASYNC
870# define fdatasync fsync
871#endif
872
873#if !HAVE_READAHEAD
874# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
875
876static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
877{
878 dBUF;
879
880 while (count > 0)
881 {
882 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
883
884 pread (fd, aio_buf, len, offset);
885 offset += len;
886 count -= len;
887 }
888
889 errno = 0;
890}
891
892#endif
893
894#if !HAVE_READDIR_R
895# define readdir_r aio_readdir_r
896
897static mutex_t readdirlock = MUTEX_INIT;
898
899static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
900{
901 struct dirent *e;
902 int errorno;
903
904 LOCK (readdirlock);
905
906 e = readdir (dirp);
907 errorno = errno;
908
909 if (e)
910 {
911 *res = ent;
912 strcpy (ent->d_name, e->d_name);
913 }
914 else
915 *res = 0;
916
917 UNLOCK (readdirlock);
918
919 errno = errorno;
920 return e ? 0 : -1;
921}
922#endif
923
924/* sendfile always needs emulation */
925static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
926{
927 ssize_t res;
928
929 if (!count)
930 return 0;
931
932#if HAVE_SENDFILE
933# if __linux
934 res = sendfile (ofd, ifd, &offset, count);
935
936# elif __freebsd
937 /*
938 * Of course, the freebsd sendfile is a dire hack with no thoughts
939 * wasted on making it similar to other I/O functions.
940 */
941 {
942 off_t sbytes;
943 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
944
945 if (res < 0 && sbytes)
946 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
947 res = sbytes;
948 }
949
950# elif __hpux
951 res = sendfile (ofd, ifd, offset, count, 0, 0);
952
953# elif __solaris
954 {
955 struct sendfilevec vec;
956 size_t sbytes;
957
958 vec.sfv_fd = ifd;
959 vec.sfv_flag = 0;
960 vec.sfv_off = offset;
961 vec.sfv_len = count;
962
963 res = sendfilev (ofd, &vec, 1, &sbytes);
964
965 if (res < 0 && sbytes)
966 res = sbytes;
967 }
968
969# endif
970#else
971 res = -1;
972 errno = ENOSYS;
973#endif
974
975 if (res < 0
976 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
977#if __solaris
978 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
979#endif
980 )
981 )
982 {
983 /* emulate sendfile. this is a major pain in the ass */
984 dBUF;
985
986 res = 0;
987
988 while (count)
989 {
990 ssize_t cnt;
991
992 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
993
994 if (cnt <= 0)
995 {
996 if (cnt && !res) res = -1;
997 break;
998 }
999
1000 cnt = write (ofd, aio_buf, cnt);
1001
1002 if (cnt <= 0)
1003 {
1004 if (cnt && !res) res = -1;
1005 break;
1006 }
1007
1008 offset += cnt;
1009 res += cnt;
1010 count -= cnt;
1011 }
1012 }
1013
1014 return res;
1015}
1016
1017/* read a full directory */
1018static void scandir_ (aio_req req, worker *self)
1019{
1020 DIR *dirp;
1021 union
1022 {
1023 struct dirent d;
1024 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1025 } *u;
1026 struct dirent *entp;
1027 char *name, *names;
1028 int memlen = 4096;
1029 int memofs = 0;
1030 int res = 0;
1031 int errorno;
1032
1033 LOCK (wrklock);
1034 self->dirp = dirp = opendir (req->ptr1);
1035 self->dbuf = u = malloc (sizeof (*u));
1036 req->flags |= FLAG_PTR2_FREE;
1037 req->ptr2 = names = malloc (memlen);
1038 UNLOCK (wrklock);
1039
1040 if (dirp && u && names)
1041 for (;;)
1042 {
1043 errno = 0;
1044 readdir_r (dirp, &u->d, &entp);
1045
1046 if (!entp)
1047 break;
1048
1049 name = entp->d_name;
1050
1051 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1052 {
1053 int len = strlen (name) + 1;
1054
1055 res++;
1056
1057 while (memofs + len > memlen)
1058 {
1059 memlen *= 2;
1060 LOCK (wrklock);
1061 req->ptr2 = names = realloc (names, memlen);
1062 UNLOCK (wrklock);
1063
1064 if (!names)
1065 break;
1066 }
1067
1068 memcpy (names + memofs, name, len);
1069 memofs += len;
1070 }
1071 }
1072
1073 if (errno)
1074 res = -1;
1075
1076 req->result = res;
1077} 1024}
1078 1025
1079/*****************************************************************************/ 1026/*****************************************************************************/
1080 1027
1081static void *aio_proc (void *thr_arg) 1028XS(boot_IO__AIO) ecb_cold;
1082{
1083 aio_req req;
1084 struct timespec ts;
1085 worker *self = (worker *)thr_arg;
1086 1029
1087 /* try to distribute timeouts somewhat evenly */
1088 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1089 * (1000000000UL / 1024UL);
1090
1091 for (;;)
1092 {
1093 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1094
1095 LOCK (reqlock);
1096
1097 for (;;)
1098 {
1099 self->req = req = reqq_shift (&req_queue);
1100
1101 if (req)
1102 break;
1103
1104 ++idle;
1105
1106 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1107 == ETIMEDOUT)
1108 {
1109 if (idle > max_idle)
1110 {
1111 --idle;
1112 UNLOCK (reqlock);
1113 LOCK (wrklock);
1114 --started;
1115 UNLOCK (wrklock);
1116 goto quit;
1117 }
1118
1119 /* we are allowed to idle, so do so without any timeout */
1120 COND_WAIT (reqwait, reqlock);
1121 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1122 }
1123
1124 --idle;
1125 }
1126
1127 --nready;
1128
1129 UNLOCK (reqlock);
1130
1131 errno = 0; /* strictly unnecessary */
1132
1133 if (!(req->flags & FLAG_CANCELLED))
1134 switch (req->type)
1135 {
1136 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1137 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1138
1139 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1140 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1141
1142 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1143 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1144 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1145
1146 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1147 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1148 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1149 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1150
1151 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1152 case REQ_CLOSE: req->result = close (req->int1); break;
1153 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1154 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1155 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1156 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1157 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1158 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1159 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1160 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1161
1162 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1163 case REQ_FSYNC: req->result = fsync (req->int1); break;
1164 case REQ_READDIR: scandir_ (req, self); break;
1165
1166 case REQ_BUSY:
1167 {
1168 struct timeval tv;
1169
1170 tv.tv_sec = req->nv1;
1171 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.;
1172
1173 req->result = select (0, 0, 0, 0, &tv);
1174 }
1175
1176 case REQ_UTIME:
1177 case REQ_FUTIME:
1178 {
1179 struct timeval tv[2];
1180 struct timeval *times;
1181
1182 if (req->nv1 != -1. || req->nv2 != -1.)
1183 {
1184 tv[0].tv_sec = req->nv1;
1185 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1186 tv[1].tv_sec = req->nv2;
1187 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1188
1189 times = tv;
1190 }
1191 else
1192 times = 0;
1193
1194
1195 req->result = req->type == REQ_FUTIME
1196 ? futimes (req->int1, times)
1197 : utimes (req->ptr1, times);
1198 }
1199
1200 case REQ_GROUP:
1201 case REQ_NOP:
1202 break;
1203
1204 case REQ_QUIT:
1205 goto quit;
1206
1207 default:
1208 req->result = -1;
1209 break;
1210 }
1211
1212 req->errorno = errno;
1213
1214 LOCK (reslock);
1215
1216 ++npending;
1217
1218 if (!reqq_push (&res_queue, req))
1219 {
1220 /* write a dummy byte to the pipe so fh becomes ready */
1221 write (respipe [1], &respipe, 1);
1222
1223 /* optionally signal the main thread asynchronously */
1224 if (main_sig)
1225 pthread_kill (main_tid, main_sig);
1226 }
1227
1228 self->req = 0;
1229 worker_clear (self);
1230
1231 UNLOCK (reslock);
1232 }
1233
1234quit:
1235 LOCK (wrklock);
1236 worker_free (self);
1237 UNLOCK (wrklock);
1238
1239 return 0;
1240}
1241
1242/*****************************************************************************/
1243
1244static void atfork_prepare (void)
1245{
1246 LOCK (wrklock);
1247 LOCK (reqlock);
1248 LOCK (reslock);
1249#if !HAVE_PREADWRITE
1250 LOCK (preadwritelock);
1251#endif
1252#if !HAVE_READDIR_R
1253 LOCK (readdirlock);
1254#endif
1255}
1256
1257static void atfork_parent (void)
1258{
1259#if !HAVE_READDIR_R
1260 UNLOCK (readdirlock);
1261#endif
1262#if !HAVE_PREADWRITE
1263 UNLOCK (preadwritelock);
1264#endif
1265 UNLOCK (reslock);
1266 UNLOCK (reqlock);
1267 UNLOCK (wrklock);
1268}
1269
1270static void atfork_child (void)
1271{
1272 aio_req prv;
1273
1274 while (prv = reqq_shift (&req_queue))
1275 req_free (prv);
1276
1277 while (prv = reqq_shift (&res_queue))
1278 req_free (prv);
1279
1280 while (wrk_first.next != &wrk_first)
1281 {
1282 worker *wrk = wrk_first.next;
1283
1284 if (wrk->req)
1285 req_free (wrk->req);
1286
1287 worker_clear (wrk);
1288 worker_free (wrk);
1289 }
1290
1291 started = 0;
1292 idle = 0;
1293 nreqs = 0;
1294 nready = 0;
1295 npending = 0;
1296
1297 close (respipe [0]);
1298 close (respipe [1]);
1299 create_pipe ();
1300
1301 atfork_parent ();
1302}
1303
1304#define dREQ \
1305 aio_req req; \
1306 int req_pri = next_pri; \
1307 next_pri = DEFAULT_PRI + PRI_BIAS; \
1308 \
1309 if (SvOK (callback) && !SvROK (callback)) \
1310 croak ("callback must be undef or of reference type"); \
1311 \
1312 Newz (0, req, 1, aio_cb); \
1313 if (!req) \
1314 croak ("out of memory during aio_req allocation"); \
1315 \
1316 req->callback = newSVsv (callback); \
1317 req->pri = req_pri
1318
1319#define REQ_SEND \
1320 req_send (req); \
1321 \
1322 if (GIMME_V != G_VOID) \
1323 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1324
1325MODULE = IO::AIO PACKAGE = IO::AIO 1030MODULE = IO::AIO PACKAGE = IO::AIO
1326 1031
1327PROTOTYPES: ENABLE 1032PROTOTYPES: ENABLE
1328 1033
1329BOOT: 1034BOOT:
1330{ 1035{
1036 static const struct {
1037 const char *name;
1038 IV iv;
1039 } *civ, const_iv[] = {
1040# define const_niv(name, value) { # name, (IV) value },
1041# define const_iv(name) { # name, (IV) name },
1042# define const_eio(name) { # name, (IV) EIO_ ## name },
1043
1044 /* you have to re-run ./gendef0 after adding/removing any constants here */
1045 /* the first block can be undef if missing */
1046 const_iv (ENOSYS)
1047 const_iv (EXDEV)
1048 const_iv (EBADR)
1049
1050 /* for lseek */
1051 const_iv (SEEK_DATA)
1052 const_iv (SEEK_HOLE)
1053
1054 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1055 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1056 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1057 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1058 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1059 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1060
1061 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1062 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1063 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1064 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1065 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1066
1067 /* the second block will be 0 when missing */
1068 const_iv (O_ACCMODE)
1069
1070 const_iv (O_RDONLY)
1071 const_iv (O_WRONLY)
1072 const_iv (O_RDWR)
1073 const_iv (O_CREAT)
1074 const_iv (O_TRUNC)
1075 const_iv (O_EXCL)
1076 const_iv (O_APPEND)
1077
1078 const_iv (O_ASYNC)
1079 const_iv (O_DIRECT)
1080 const_iv (O_NOATIME)
1081
1082 const_iv (O_CLOEXEC)
1083 const_iv (O_NOCTTY)
1084 const_iv (O_NOFOLLOW)
1085 const_iv (O_NONBLOCK)
1086 const_iv (O_EXEC)
1087 const_iv (O_SEARCH)
1088 const_iv (O_DIRECTORY)
1089 const_iv (O_DSYNC)
1090 const_iv (O_RSYNC)
1091 const_iv (O_SYNC)
1092 const_iv (O_PATH)
1093 const_iv (O_TMPFILE)
1094 const_iv (O_TTY_INIT)
1095
1096 const_iv (S_IFIFO)
1097 const_iv (S_IFCHR)
1098 const_iv (S_IFBLK)
1099 const_iv (S_IFLNK)
1100 const_iv (S_IFREG)
1101 const_iv (S_IFDIR)
1102 const_iv (S_IFWHT)
1103 const_iv (S_IFSOCK)
1104 const_iv (S_IFMT)
1105
1106 const_iv (ST_RDONLY)
1107 const_iv (ST_NOSUID)
1108 const_iv (ST_NODEV)
1109 const_iv (ST_NOEXEC)
1110 const_iv (ST_SYNCHRONOUS)
1111 const_iv (ST_MANDLOCK)
1112 const_iv (ST_WRITE)
1113 const_iv (ST_APPEND)
1114 const_iv (ST_IMMUTABLE)
1115 const_iv (ST_NOATIME)
1116 const_iv (ST_NODIRATIME)
1117 const_iv (ST_RELATIME)
1118
1119 const_iv (PROT_NONE)
1120 const_iv (PROT_EXEC)
1121 const_iv (PROT_READ)
1122 const_iv (PROT_WRITE)
1123
1124 const_iv (MAP_PRIVATE)
1125 const_iv (MAP_SHARED)
1126 const_iv (MAP_FIXED)
1127 const_iv (MAP_ANONYMOUS)
1128
1129 /* linuxish */
1130 const_iv (MAP_LOCKED)
1131 const_iv (MAP_NORESERVE)
1132 const_iv (MAP_POPULATE)
1133 const_iv (MAP_NONBLOCK)
1134 const_iv (MAP_GROWSDOWN)
1135 const_iv (MAP_32BIT)
1136 const_iv (MAP_HUGETLB)
1137 const_iv (MAP_STACK)
1138
1139 const_iv (MREMAP_MAYMOVE)
1140 const_iv (MREMAP_FIXED)
1141
1142 const_iv (F_DUPFD_CLOEXEC)
1143
1144 const_iv (MSG_CMSG_CLOEXEC)
1145 const_iv (SOCK_CLOEXEC)
1146
1147 const_iv (F_OFD_GETLK)
1148 const_iv (F_OFD_SETLK)
1149 const_iv (F_OFD_GETLKW)
1150
1151 const_iv (FIFREEZE)
1152 const_iv (FITHAW)
1153 const_iv (FITRIM)
1154 const_iv (FICLONE)
1155 const_iv (FICLONERANGE)
1156 const_iv (FIDEDUPERANGE)
1157
1158 const_iv (FS_IOC_GETFLAGS)
1159 const_iv (FS_IOC_SETFLAGS)
1160 const_iv (FS_IOC_GETVERSION)
1161 const_iv (FS_IOC_SETVERSION)
1162 const_iv (FS_IOC_FIEMAP)
1163 const_iv (FS_IOC_FSGETXATTR)
1164 const_iv (FS_IOC_FSSETXATTR)
1165 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1166 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1167 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1168
1169 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1170
1171 const_iv (FS_SECRM_FL)
1172 const_iv (FS_UNRM_FL)
1173 const_iv (FS_COMPR_FL)
1174 const_iv (FS_SYNC_FL)
1175 const_iv (FS_IMMUTABLE_FL)
1176 const_iv (FS_APPEND_FL)
1177 const_iv (FS_NODUMP_FL)
1178 const_iv (FS_NOATIME_FL)
1179 const_iv (FS_DIRTY_FL)
1180 const_iv (FS_COMPRBLK_FL)
1181 const_iv (FS_NOCOMP_FL)
1182 const_iv (FS_ENCRYPT_FL)
1183 const_iv (FS_BTREE_FL)
1184 const_iv (FS_INDEX_FL)
1185 const_iv (FS_JOURNAL_DATA_FL)
1186 const_iv (FS_NOTAIL_FL)
1187 const_iv (FS_DIRSYNC_FL)
1188 const_iv (FS_TOPDIR_FL)
1189 const_iv (FS_FL_USER_MODIFIABLE)
1190
1191 const_iv (FS_XFLAG_REALTIME)
1192 const_iv (FS_XFLAG_PREALLOC)
1193 const_iv (FS_XFLAG_IMMUTABLE)
1194 const_iv (FS_XFLAG_APPEND)
1195 const_iv (FS_XFLAG_SYNC)
1196 const_iv (FS_XFLAG_NOATIME)
1197 const_iv (FS_XFLAG_NODUMP)
1198 const_iv (FS_XFLAG_RTINHERIT)
1199 const_iv (FS_XFLAG_PROJINHERIT)
1200 const_iv (FS_XFLAG_NOSYMLINKS)
1201 const_iv (FS_XFLAG_EXTSIZE)
1202 const_iv (FS_XFLAG_EXTSZINHERIT)
1203 const_iv (FS_XFLAG_NODEFRAG)
1204 const_iv (FS_XFLAG_FILESTREAM)
1205 const_iv (FS_XFLAG_DAX)
1206 const_iv (FS_XFLAG_HASATTR)
1207
1208 const_iv (FIEMAP_FLAG_SYNC)
1209 const_iv (FIEMAP_FLAG_XATTR)
1210 const_iv (FIEMAP_FLAGS_COMPAT)
1211 const_iv (FIEMAP_EXTENT_LAST)
1212 const_iv (FIEMAP_EXTENT_UNKNOWN)
1213 const_iv (FIEMAP_EXTENT_DELALLOC)
1214 const_iv (FIEMAP_EXTENT_ENCODED)
1215 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1216 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1217 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1218 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1219 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1220 const_iv (FIEMAP_EXTENT_MERGED)
1221 const_iv (FIEMAP_EXTENT_SHARED)
1222
1223 const_iv (SPLICE_F_MOVE)
1224 const_iv (SPLICE_F_NONBLOCK)
1225 const_iv (SPLICE_F_MORE)
1226 const_iv (SPLICE_F_GIFT)
1227
1228 const_iv (EFD_CLOEXEC)
1229 const_iv (EFD_NONBLOCK)
1230 const_iv (EFD_SEMAPHORE)
1231
1232 const_iv (CLOCK_REALTIME)
1233 const_iv (CLOCK_MONOTONIC)
1234 const_iv (CLOCK_BOOTTIME)
1235 const_iv (CLOCK_REALTIME_ALARM)
1236 const_iv (CLOCK_BOOTTIME_ALARM)
1237
1238 const_iv (TFD_NONBLOCK)
1239 const_iv (TFD_CLOEXEC)
1240
1241 const_iv (TFD_TIMER_ABSTIME)
1242 const_iv (TFD_TIMER_CANCEL_ON_SET)
1243
1244 /* these are libeio constants, and are independent of gendef0 */
1245 const_eio (SEEK_SET)
1246 const_eio (SEEK_CUR)
1247 const_eio (SEEK_END)
1248
1249 const_eio (MCL_FUTURE)
1250 const_eio (MCL_CURRENT)
1251
1252 const_eio (MS_ASYNC)
1253 const_eio (MS_INVALIDATE)
1254 const_eio (MS_SYNC)
1255
1256 const_eio (MT_MODIFY)
1257
1258 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1259 const_eio (SYNC_FILE_RANGE_WRITE)
1260 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1261
1262 const_eio (FALLOC_FL_KEEP_SIZE)
1263 const_eio (FALLOC_FL_PUNCH_HOLE)
1264 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1265 const_eio (FALLOC_FL_ZERO_RANGE)
1266 const_eio (FALLOC_FL_INSERT_RANGE)
1267 const_eio (FALLOC_FL_UNSHARE_RANGE)
1268
1269 const_eio (RENAME_NOREPLACE)
1270 const_eio (RENAME_EXCHANGE)
1271 const_eio (RENAME_WHITEOUT)
1272
1273 const_eio (READDIR_DENTS)
1274 const_eio (READDIR_DIRS_FIRST)
1275 const_eio (READDIR_STAT_ORDER)
1276 const_eio (READDIR_FOUND_UNKNOWN)
1277
1278 const_eio (DT_UNKNOWN)
1279 const_eio (DT_FIFO)
1280 const_eio (DT_CHR)
1281 const_eio (DT_DIR)
1282 const_eio (DT_BLK)
1283 const_eio (DT_REG)
1284 const_eio (DT_LNK)
1285 const_eio (DT_SOCK)
1286 const_eio (DT_WHT)
1287 };
1288
1331 HV *stash = gv_stashpv ("IO::AIO", 1); 1289 aio_stash = gv_stashpv ("IO::AIO" , 1);
1290 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1291 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1292 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1332 1293
1333 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1294 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1334 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1295 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1335 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1336 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1337 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1338 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1339 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1340 1296
1341 create_pipe (); 1297 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1342 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1343}
1344 1298
1299 reinit ();
1300}
1301
1345void 1302void
1303reinit ()
1304 PROTOTYPE:
1305
1306void
1346max_poll_reqs (int nreqs) 1307max_poll_reqs (unsigned int nreqs)
1347 PROTOTYPE: $ 1308 PROTOTYPE: $
1348 CODE: 1309 CODE:
1349 max_poll_reqs = nreqs; 1310 eio_set_max_poll_reqs (nreqs);
1350 1311
1351void 1312void
1352max_poll_time (double nseconds) 1313max_poll_time (double nseconds)
1353 PROTOTYPE: $ 1314 PROTOTYPE: $
1354 CODE: 1315 CODE:
1355 max_poll_time = nseconds * AIO_TICKS; 1316 eio_set_max_poll_time (nseconds);
1356 1317
1357void 1318void
1358min_parallel (int nthreads) 1319min_parallel (unsigned int nthreads)
1359 PROTOTYPE: $
1360
1361void
1362max_parallel (int nthreads)
1363 PROTOTYPE: $
1364
1365void
1366max_idle (int nthreads)
1367 PROTOTYPE: $ 1320 PROTOTYPE: $
1368 CODE: 1321 CODE:
1369 set_max_idle (nthreads); 1322 eio_set_min_parallel (nthreads);
1370 1323
1371int 1324void
1372max_outstanding (int maxreqs) 1325max_parallel (unsigned int nthreads)
1373 PROTOTYPE: $ 1326 PROTOTYPE: $
1374 CODE: 1327 CODE:
1375 RETVAL = max_outstanding; 1328 eio_set_max_parallel (nthreads);
1329
1330void
1331max_idle (unsigned int nthreads)
1332 PROTOTYPE: $
1333 CODE:
1334 eio_set_max_idle (nthreads);
1335
1336void
1337idle_timeout (unsigned int seconds)
1338 PROTOTYPE: $
1339 CODE:
1340 eio_set_idle_timeout (seconds);
1341
1342void
1343max_outstanding (unsigned int maxreqs)
1344 PROTOTYPE: $
1345 CODE:
1376 max_outstanding = maxreqs; 1346 max_outstanding = maxreqs;
1377 OUTPUT:
1378 RETVAL
1379 1347
1380void 1348void
1381aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1349aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1382 PROTOTYPE: $$$;$
1383 PPCODE: 1350 PPCODE:
1384{ 1351{
1385 dREQ; 1352 dREQ;
1386 1353
1354 req->type = EIO_WD_OPEN;
1355 req_set_path1 (req, pathname);
1356
1357 REQ_SEND;
1358}
1359
1360void
1361aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1362 PPCODE:
1363{
1364 dREQ;
1365
1387 req->type = REQ_OPEN; 1366 req->type = EIO_OPEN;
1388 req->sv1 = newSVsv (pathname); 1367 req_set_path1 (req, pathname);
1389 req->ptr1 = SvPVbyte_nolen (req->sv1);
1390 req->int1 = flags; 1368 req->int1 = flags;
1391 req->mode = mode; 1369 req->int2 = mode;
1392 1370
1393 REQ_SEND; 1371 REQ_SEND;
1394} 1372}
1395 1373
1396void 1374void
1397aio_close (SV *fh, SV *callback=&PL_sv_undef) 1375aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1398 PROTOTYPE: $;$
1399 ALIAS: 1376 ALIAS:
1400 aio_close = REQ_CLOSE
1401 aio_fsync = REQ_FSYNC 1377 aio_fsync = EIO_FSYNC
1402 aio_fdatasync = REQ_FDATASYNC 1378 aio_fdatasync = EIO_FDATASYNC
1379 aio_syncfs = EIO_SYNCFS
1403 PPCODE: 1380 PPCODE:
1404{ 1381{
1382 int fd = s_fileno_croak (fh, 0);
1405 dREQ; 1383 dREQ;
1406 1384
1407 req->type = ix; 1385 req->type = ix;
1408 req->sv1 = newSVsv (fh); 1386 req->sv1 = newSVsv (fh);
1409 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1387 req->int1 = fd;
1410 1388
1411 REQ_SEND (req); 1389 REQ_SEND;
1412} 1390}
1413 1391
1414void 1392void
1393aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1394 PPCODE:
1395{
1396 int fd = s_fileno_croak (fh, 0);
1397 dREQ;
1398
1399 req->type = EIO_SYNC_FILE_RANGE;
1400 req->sv1 = newSVsv (fh);
1401 req->int1 = fd;
1402 req->offs = offset;
1403 req->size = nbytes;
1404 req->int2 = flags;
1405
1406 REQ_SEND;
1407}
1408
1409void
1410aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1411 PPCODE:
1412{
1413 int fd = s_fileno_croak (fh, 0);
1414 dREQ;
1415
1416 req->type = EIO_FALLOCATE;
1417 req->sv1 = newSVsv (fh);
1418 req->int1 = fd;
1419 req->int2 = mode;
1420 req->offs = offset;
1421 req->size = len;
1422
1423 REQ_SEND;
1424}
1425
1426void
1427aio_close (SV *fh, SV *callback = &PL_sv_undef)
1428 PPCODE:
1429{
1430 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1431 int fd = s_fileno_croak (fh, 0);
1432 dREQ;
1433
1434 if (expect_false (close_fd < 0))
1435 {
1436 int pipefd [2];
1437
1438 if (
1439#ifdef _WIN32
1440 _pipe (pipefd, 1, _O_BINARY) < 0
1441#else
1442 pipe (pipefd) < 0
1443 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1444#endif
1445 || close (pipefd [1]) < 0
1446 )
1447 abort (); /*D*/
1448
1449 close_fd = pipefd [0];
1450 }
1451
1452 req->type = EIO_DUP2;
1453 req->int1 = close_fd;
1454 req->sv2 = newSVsv (fh);
1455 req->int2 = fd;
1456
1457 REQ_SEND;
1458}
1459
1460void
1461aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1462 PPCODE:
1463{
1464 int fd = s_fileno_croak (fh, 0);
1465 dREQ;
1466
1467 req->type = EIO_SEEK;
1468 req->sv1 = newSVsv (fh);
1469 req->int1 = fd;
1470 req->offs = SvVAL64 (offset);
1471 req->int2 = whence;
1472
1473 REQ_SEND;
1474}
1475
1476void
1415aio_read (SV *fh, UV offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1477aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1416 ALIAS: 1478 ALIAS:
1417 aio_read = REQ_READ 1479 aio_read = EIO_READ
1418 aio_write = REQ_WRITE 1480 aio_write = EIO_WRITE
1419 PROTOTYPE: $$$$$;$
1420 PPCODE: 1481 PPCODE:
1421{ 1482{
1422 STRLEN svlen; 1483 STRLEN svlen;
1484 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1423 char *svptr = SvPVbyte (data, svlen); 1485 char *svptr = SvPVbyte (data, svlen);
1424 1486 UV len = SvUV (length);
1425 SvUPGRADE (data, SVt_PV);
1426 SvPOK_on (data);
1427 1487
1428 if (dataoffset < 0) 1488 if (dataoffset < 0)
1429 dataoffset += svlen; 1489 dataoffset += svlen;
1430 1490
1431 if (dataoffset < 0 || dataoffset > svlen) 1491 if (dataoffset < 0 || dataoffset > svlen)
1432 croak ("data offset outside of string"); 1492 croak ("dataoffset outside of data scalar");
1433 1493
1434 if (ix == REQ_WRITE) 1494 if (ix == EIO_WRITE)
1435 { 1495 {
1436 /* write: check length and adjust. */ 1496 /* write: check length and adjust. */
1437 if (length < 0 || length + dataoffset > svlen) 1497 if (!SvOK (length) || len + dataoffset > svlen)
1438 length = svlen - dataoffset; 1498 len = svlen - dataoffset;
1439 } 1499 }
1440 else 1500 else
1441 { 1501 {
1442 /* read: grow scalar as necessary */ 1502 /* read: check type and grow scalar as necessary */
1503 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1443 svptr = SvGROW (data, length + dataoffset + 1); 1504 svptr = sv_grow (data, len + dataoffset + 1);
1505 else if (SvCUR (data) < len + dataoffset)
1506 croak ("length + dataoffset outside of scalar, and cannot grow");
1444 } 1507 }
1445
1446 if (length < 0)
1447 croak ("length must not be negative");
1448 1508
1449 { 1509 {
1450 dREQ; 1510 dREQ;
1451 1511
1452 req->type = ix; 1512 req->type = ix;
1453 req->sv1 = newSVsv (fh); 1513 req->sv1 = newSVsv (fh);
1454 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1514 req->int1 = fd;
1455 : IoOFP (sv_2io (fh))); 1515 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1456 req->offs = offset;
1457 req->size = length; 1516 req->size = len;
1458 req->sv2 = SvREFCNT_inc (data); 1517 req->sv2 = SvREFCNT_inc (data);
1459 req->ptr1 = (char *)svptr + dataoffset; 1518 req->ptr2 = (char *)svptr + dataoffset;
1460 req->stroffset = dataoffset; 1519 req->stroffset = dataoffset;
1461 1520
1462 if (!SvREADONLY (data)) 1521 if (!SvREADONLY (data))
1463 { 1522 {
1464 SvREADONLY_on (data); 1523 SvREADONLY_on (data);
… …
1468 REQ_SEND; 1527 REQ_SEND;
1469 } 1528 }
1470} 1529}
1471 1530
1472void 1531void
1473aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1532aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1474 PROTOTYPE: $$;$ 1533 ALIAS:
1534 aio_ioctl = EIO_IOCTL
1535 aio_fcntl = EIO_FCNTL
1475 PPCODE: 1536 PPCODE:
1476{ 1537{
1477 SV *data; 1538 int fd = s_fileno_croak (fh, 0);
1539 char *svptr;
1540
1541 if (SvPOK (arg) || !SvNIOK (arg))
1542 {
1543 STRLEN svlen;
1544 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1545#ifdef IOCPARM_LEN
1546 STRLEN need = IOCPARM_LEN (request);
1547#else
1548 STRLEN need = 256;
1549#endif
1550
1551 if (svlen < need)
1552 svptr = SvGROW (arg, need);
1553 }
1554 else
1555 svptr = (char *)SvIV (arg);
1556
1557 {
1558 dREQ;
1559
1560 req->type = ix;
1561 req->sv1 = newSVsv (fh);
1562 req->int1 = fd;
1563 req->int2 = (long)request;
1564 req->sv2 = SvREFCNT_inc (arg);
1565 req->ptr2 = svptr;
1566
1567 REQ_SEND;
1568 }
1569}
1570
1571void
1572aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1573 ALIAS:
1574 aio_readlink = EIO_READLINK
1575 aio_realpath = EIO_REALPATH
1576 PPCODE:
1577{
1478 dREQ; 1578 dREQ;
1479 1579
1480 data = newSV (NAME_MAX);
1481 SvPOK_on (data);
1482
1483 req->type = REQ_READLINK; 1580 req->type = ix;
1484 req->sv1 = newSVsv (path); 1581 req_set_path1 (req, pathname);
1485 req->ptr2 = SvPVbyte_nolen (req->sv1);
1486 req->sv2 = data;
1487 req->ptr1 = SvPVbyte_nolen (data);
1488 1582
1489 REQ_SEND; 1583 REQ_SEND;
1490} 1584}
1491 1585
1492void 1586void
1493aio_sendfile (SV *out_fh, SV *in_fh, UV in_offset, UV length, SV *callback=&PL_sv_undef) 1587aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1494 PROTOTYPE: $$$$;$
1495 PPCODE: 1588 PPCODE:
1496{ 1589{
1590 int ifd = s_fileno_croak (in_fh , 0);
1591 int ofd = s_fileno_croak (out_fh, 1);
1497 dREQ; 1592 dREQ;
1498 1593
1499 req->type = REQ_SENDFILE; 1594 req->type = EIO_SENDFILE;
1500 req->sv1 = newSVsv (out_fh); 1595 req->sv1 = newSVsv (out_fh);
1501 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1596 req->int1 = ofd;
1502 req->sv2 = newSVsv (in_fh); 1597 req->sv2 = newSVsv (in_fh);
1503 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1598 req->int2 = ifd;
1504 req->offs = in_offset; 1599 req->offs = in_offset;
1505 req->size = length; 1600 req->size = length;
1506 1601
1507 REQ_SEND; 1602 REQ_SEND;
1508} 1603}
1509 1604
1510void 1605void
1511aio_readahead (SV *fh, UV offset, IV length, SV *callback=&PL_sv_undef) 1606aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1512 PROTOTYPE: $$$;$
1513 PPCODE: 1607 PPCODE:
1514{ 1608{
1609 int fd = s_fileno_croak (fh, 0);
1515 dREQ; 1610 dREQ;
1516 1611
1517 req->type = REQ_READAHEAD; 1612 req->type = EIO_READAHEAD;
1518 req->sv1 = newSVsv (fh); 1613 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1614 req->int1 = fd;
1520 req->offs = offset; 1615 req->offs = offset;
1521 req->size = length; 1616 req->size = length;
1522 1617
1523 REQ_SEND; 1618 REQ_SEND;
1524} 1619}
1525 1620
1526void 1621void
1527aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1622aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1528 ALIAS: 1623 ALIAS:
1529 aio_stat = REQ_STAT 1624 aio_stat = EIO_STAT
1530 aio_lstat = REQ_LSTAT 1625 aio_lstat = EIO_LSTAT
1626 aio_statvfs = EIO_STATVFS
1531 PPCODE: 1627 PPCODE:
1532{ 1628{
1533 dREQ; 1629 dREQ;
1534 1630
1535 req->ptr2 = malloc (sizeof (Stat_t)); 1631 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1536 if (!req->ptr2)
1537 {
1538 req_free (req);
1539 croak ("out of memory during aio_stat statdata allocation");
1540 }
1541
1542 req->flags |= FLAG_PTR2_FREE;
1543 req->sv1 = newSVsv (fh_or_path);
1544
1545 if (SvPOK (fh_or_path))
1546 {
1547 req->type = ix;
1548 req->ptr1 = SvPVbyte_nolen (req->sv1);
1549 }
1550 else
1551 {
1552 req->type = REQ_FSTAT;
1553 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1554 }
1555 1632
1556 REQ_SEND; 1633 REQ_SEND;
1557} 1634}
1558 1635
1559void 1636void
1637st_xtime ()
1638 ALIAS:
1639 st_atime = 1
1640 st_mtime = 2
1641 st_ctime = 4
1642 st_xtime = 7
1643 PPCODE:
1644 EXTEND (SP, 3);
1645 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1646 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1647 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1648
1649void
1650st_xtimensec ()
1651 ALIAS:
1652 st_atimensec = 1
1653 st_mtimensec = 2
1654 st_ctimensec = 4
1655 st_xtimensec = 7
1656 PPCODE:
1657 EXTEND (SP, 3);
1658 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1659 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1660 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1661
1662UV
1663major (UV dev)
1664 ALIAS:
1665 minor = 1
1666 CODE:
1667 RETVAL = ix ? minor (dev) : major (dev);
1668 OUTPUT:
1669 RETVAL
1670
1671UV
1672makedev (UV maj, UV min)
1673 CODE:
1674 RETVAL = makedev (maj, min);
1675 OUTPUT:
1676 RETVAL
1677
1678void
1560aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1679aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1561 PPCODE: 1680 PPCODE:
1562{ 1681{
1563 dREQ; 1682 dREQ;
1564 1683
1565 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1684 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1566 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1685 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1567 req->sv1 = newSVsv (fh_or_path); 1686 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1568
1569 if (SvPOK (fh_or_path))
1570 {
1571 req->type = REQ_UTIME;
1572 req->ptr1 = SvPVbyte_nolen (req->sv1);
1573 }
1574 else
1575 {
1576 req->type = REQ_FUTIME;
1577 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1578 }
1579 1687
1580 REQ_SEND; 1688 REQ_SEND;
1581} 1689}
1582 1690
1583void 1691void
1584aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1585 PPCODE: 1693 PPCODE:
1586{ 1694{
1587 dREQ; 1695 dREQ;
1588 1696
1589 req->mode = mode; 1697 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1590 req->sv1 = newSVsv (fh_or_path); 1698 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1591
1592 if (SvPOK (fh_or_path))
1593 {
1594 req->type = REQ_CHMOD;
1595 req->ptr1 = SvPVbyte_nolen (req->sv1);
1596 }
1597 else
1598 {
1599 req->type = REQ_FCHMOD;
1600 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1601 }
1602 1699
1603 REQ_SEND; 1700 REQ_SEND;
1604} 1701}
1605 1702
1606void 1703void
1704aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1705 PPCODE:
1706{
1707 dREQ;
1708
1709 req->int2 = mode;
1710 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1711
1712 REQ_SEND;
1713}
1714
1715void
1607aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1716aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1608 PPCODE: 1717 PPCODE:
1609{ 1718{
1610 dREQ; 1719 dREQ;
1611 1720
1612 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1721 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1613 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1722 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1614 req->sv1 = newSVsv (fh_or_path); 1723 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1615
1616 if (SvPOK (fh_or_path))
1617 {
1618 req->type = REQ_CHOWN;
1619 req->ptr1 = SvPVbyte_nolen (req->sv1);
1620 }
1621 else
1622 {
1623 req->type = REQ_FCHOWN;
1624 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1625 }
1626 1724
1627 REQ_SEND; 1725 REQ_SEND;
1628} 1726}
1629 1727
1630void 1728void
1729aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1730 PPCODE:
1731{
1732 dREQ;
1733
1734 req->type = EIO_READDIR;
1735 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1736
1737 if (flags & EIO_READDIR_DENTS)
1738 req->int1 |= EIO_READDIR_CUSTOM2;
1739
1740 req_set_path1 (req, pathname);
1741
1742 REQ_SEND;
1743}
1744
1745void
1746aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1747 PPCODE:
1748{
1749 dREQ;
1750
1751 req->type = EIO_MKDIR;
1752 req->int2 = mode;
1753 req_set_path1 (req, pathname);
1754
1755 REQ_SEND;
1756}
1757
1758void
1631aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1759aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1632 ALIAS: 1760 ALIAS:
1633 aio_unlink = REQ_UNLINK 1761 aio_unlink = EIO_UNLINK
1634 aio_rmdir = REQ_RMDIR 1762 aio_rmdir = EIO_RMDIR
1635 aio_readdir = REQ_READDIR 1763 aio_readdir = EIO_READDIR
1636 PPCODE: 1764 PPCODE:
1637{ 1765{
1638 dREQ; 1766 dREQ;
1639 1767
1640 req->type = ix; 1768 req->type = ix;
1641 req->sv1 = newSVsv (pathname); 1769 req_set_path1 (req, pathname);
1642 req->ptr1 = SvPVbyte_nolen (req->sv1);
1643 1770
1644 REQ_SEND; 1771 REQ_SEND;
1645} 1772}
1646 1773
1647void 1774void
1648aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1649 PPCODE:
1650{
1651 dREQ;
1652
1653 req->type = REQ_MKDIR;
1654 req->sv1 = newSVsv (pathname);
1655 req->ptr1 = SvPVbyte_nolen (req->sv1);
1656 req->mode = mode;
1657
1658 REQ_SEND;
1659}
1660
1661void
1662aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1775aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1663 ALIAS: 1776 ALIAS:
1664 aio_link = REQ_LINK 1777 aio_link = EIO_LINK
1665 aio_symlink = REQ_SYMLINK 1778 aio_symlink = EIO_SYMLINK
1666 aio_rename = REQ_RENAME 1779 aio_rename = EIO_RENAME
1667 PPCODE: 1780 PPCODE:
1668{ 1781{
1782 eio_wd wd2 = 0;
1669 dREQ; 1783 dREQ;
1670 1784
1671 req->type = ix; 1785 req->type = ix;
1672 req->sv2 = newSVsv (oldpath); 1786 req_set_path1 (req, oldpath);
1673 req->ptr2 = SvPVbyte_nolen (req->sv2); 1787 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1674 req->sv1 = newSVsv (newpath); 1788 req->int3 = (long)wd2;
1675 req->ptr1 = SvPVbyte_nolen (req->sv1);
1676 1789
1677 REQ_SEND; 1790 REQ_SEND;
1678} 1791}
1679 1792
1680void 1793void
1681aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1794aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1682 PPCODE: 1795 PPCODE:
1683{ 1796{
1797 eio_wd wd2 = 0;
1684 dREQ; 1798 dREQ;
1685 1799
1686 req->type = REQ_MKNOD; 1800 req->type = EIO_RENAME;
1687 req->sv1 = newSVsv (pathname); 1801 req_set_path1 (req, oldpath);
1688 req->ptr1 = SvPVbyte_nolen (req->sv1); 1802 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1689 req->mode = (mode_t)mode; 1803 req->int2 = flags;
1690 req->offs = dev; 1804 req->int3 = (long)wd2;
1691 1805
1692 REQ_SEND; 1806 REQ_SEND;
1693} 1807}
1694 1808
1695void 1809void
1696aio_busy (double delay, SV *callback=&PL_sv_undef) 1810aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1697 PPCODE: 1811 PPCODE:
1698{ 1812{
1699 dREQ; 1813 dREQ;
1814
1815 req->type = EIO_MKNOD;
1816 req->int2 = (mode_t)mode;
1817 req->offs = dev;
1818 req_set_path1 (req, pathname);
1819
1820 REQ_SEND;
1821}
1700 1822
1823void
1824aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1825 ALIAS:
1826 aio_mtouch = EIO_MTOUCH
1827 aio_msync = EIO_MSYNC
1828 PPCODE:
1829{
1830 STRLEN svlen;
1831 char *svptr = SvPVbyte (data, svlen);
1832 UV len = SvUV (length);
1833
1834 if (flags < 0)
1835 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1836
1837 if (offset < 0)
1838 offset += svlen;
1839
1840 if (offset < 0 || offset > svlen)
1841 croak ("offset outside of scalar");
1842
1843 if (!SvOK (length) || len + offset > svlen)
1844 len = svlen - offset;
1845
1846 {
1847 dREQ;
1848
1849 req->type = ix;
1850 req->sv2 = SvREFCNT_inc (data);
1851 req->ptr2 = (char *)svptr + offset;
1852 req->size = len;
1853 req->int1 = flags;
1854
1855 REQ_SEND;
1856 }
1857}
1858
1859void
1860aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1861 PPCODE:
1862{
1863 STRLEN svlen;
1864 char *svptr = SvPVbyte (data, svlen);
1865 UV len = SvUV (length);
1866
1867 if (offset < 0)
1868 offset += svlen;
1869
1870 if (offset < 0 || offset > svlen)
1871 croak ("offset outside of scalar");
1872
1873 if (!SvOK (length) || len + offset > svlen)
1874 len = svlen - offset;
1875
1876 {
1877 dREQ;
1878
1879 req->type = EIO_MLOCK;
1880 req->sv2 = SvREFCNT_inc (data);
1881 req->ptr2 = (char *)svptr + offset;
1882 req->size = len;
1883
1884 REQ_SEND;
1885 }
1886}
1887
1888void
1889aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1890 PPCODE:
1891{
1892 dREQ;
1893
1894 req->type = EIO_MLOCKALL;
1895 req->int1 = flags;
1896
1897 REQ_SEND;
1898}
1899
1900void
1901aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1902 PPCODE:
1903{
1904 int fd = s_fileno_croak (fh, 0);
1905 dREQ;
1906
1907 req->type = EIO_CUSTOM;
1908 req->sv1 = newSVsv (fh);
1909 req->int1 = fd;
1910
1911 req->feed = fiemap;
1912#if HAVE_FIEMAP
1913 /* keep our fingers crossed that the next two types are 64 bit */
1914 req->offs = start;
1915 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1916 req->int2 = flags;
1917 req->int3 = SvOK (count) ? SvIV (count) : -1;
1918#endif
1919
1920 REQ_SEND;
1921}
1922
1923void
1924aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1925 PPCODE:
1926{
1927 char *svptr = 0;
1928
1929 sv_clear_foreign (data);
1930
1931 if (length) /* known length, directly read into scalar */
1932 {
1933 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1934 svptr = sv_grow (data, length + 1);
1935 else if (SvCUR (data) < length)
1936 croak ("length outside of scalar, and cannot grow");
1937 else
1938 svptr = SvPVbyte_nolen (data);
1939 }
1940
1941 {
1942 dREQ;
1943
1944 req->type = EIO_SLURP;
1945 req_set_path1 (req, pathname);
1946 req->offs = offset;
1947 req->size = length;
1948 req->sv2 = SvREFCNT_inc (data);
1949 req->ptr2 = svptr;
1950
1951 if (!SvREADONLY (data))
1952 {
1953 SvREADONLY_on (data);
1954 req->flags |= FLAG_SV2_RO_OFF;
1955 }
1956
1957 REQ_SEND;
1958 }
1959}
1960
1961void
1962aio_busy (double delay, SV *callback = &PL_sv_undef)
1963 PPCODE:
1964{
1965 dREQ;
1966
1701 req->type = REQ_BUSY; 1967 req->type = EIO_BUSY;
1702 req->nv1 = delay < 0. ? 0. : delay; 1968 req->nv1 = delay < 0. ? 0. : delay;
1703 1969
1704 REQ_SEND; 1970 REQ_SEND;
1705} 1971}
1706 1972
1707void 1973void
1708aio_group (SV *callback=&PL_sv_undef) 1974aio_group (SV *callback = &PL_sv_undef)
1709 PROTOTYPE: ;$
1710 PPCODE: 1975 PPCODE:
1711{ 1976{
1712 dREQ; 1977 dREQ;
1713 1978
1714 req->type = REQ_GROUP; 1979 req->type = EIO_GROUP;
1715 1980
1981 PUTBACK;
1716 req_send (req); 1982 req_submit (req);
1983 SPAGAIN;
1984
1717 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1985 XPUSHs (req_sv (req, aio_grp_stash));
1718} 1986}
1719 1987
1720void 1988void
1721aio_nop (SV *callback=&PL_sv_undef) 1989aio_nop (SV *callback = &PL_sv_undef)
1990 ALIAS:
1991 aio_nop = EIO_NOP
1992 aio_sync = EIO_SYNC
1722 PPCODE: 1993 PPCODE:
1723{ 1994{
1724 dREQ; 1995 dREQ;
1725 1996
1726 req->type = REQ_NOP; 1997 req->type = ix;
1727 1998
1728 REQ_SEND; 1999 REQ_SEND;
1729} 2000}
1730 2001
1731int 2002int
1732aioreq_pri (int pri = 0) 2003aioreq_pri (int pri = NO_INIT)
1733 PROTOTYPE: ;$
1734 CODE: 2004 CODE:
1735 RETVAL = next_pri - PRI_BIAS; 2005 RETVAL = next_pri;
1736 if (items > 0) 2006 if (items > 0)
1737 { 2007 {
1738 if (pri < PRI_MIN) pri = PRI_MIN; 2008 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1739 if (pri > PRI_MAX) pri = PRI_MAX; 2009 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1740 next_pri = pri + PRI_BIAS; 2010 next_pri = pri;
1741 } 2011 }
1742 OUTPUT: 2012 OUTPUT:
1743 RETVAL 2013 RETVAL
1744 2014
1745void 2015void
1746aioreq_nice (int nice = 0) 2016aioreq_nice (int nice = 0)
1747 CODE: 2017 CODE:
1748 nice = next_pri - nice; 2018 nice = next_pri - nice;
1749 if (nice < PRI_MIN) nice = PRI_MIN; 2019 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1750 if (nice > PRI_MAX) nice = PRI_MAX; 2020 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1751 next_pri = nice + PRI_BIAS; 2021 next_pri = nice;
1752 2022
1753void 2023void
1754flush () 2024flush ()
1755 PROTOTYPE:
1756 CODE: 2025 CODE:
1757 while (nreqs) 2026 while (eio_nreqs ())
1758 { 2027 {
1759 poll_wait (); 2028 poll_wait ();
1760 poll_cb (); 2029 poll_cb ();
1761 } 2030 }
1762 2031
1763int 2032int
1764poll() 2033poll ()
1765 PROTOTYPE:
1766 CODE: 2034 CODE:
1767 poll_wait (); 2035 poll_wait ();
1768 RETVAL = poll_cb (); 2036 RETVAL = poll_cb ();
1769 OUTPUT: 2037 OUTPUT:
1770 RETVAL 2038 RETVAL
1771 2039
1772int 2040int
1773poll_fileno() 2041poll_fileno ()
1774 PROTOTYPE:
1775 CODE: 2042 CODE:
1776 RETVAL = respipe [0]; 2043 RETVAL = s_epipe_fd (&respipe);
1777 OUTPUT: 2044 OUTPUT:
1778 RETVAL 2045 RETVAL
1779 2046
1780int 2047int
1781poll_cb(...) 2048poll_cb (...)
1782 PROTOTYPE: 2049 PROTOTYPE:
1783 CODE: 2050 CODE:
1784 RETVAL = poll_cb (); 2051 RETVAL = poll_cb ();
1785 OUTPUT: 2052 OUTPUT:
1786 RETVAL 2053 RETVAL
1787 2054
1788void 2055void
1789poll_wait() 2056poll_wait ()
1790 PROTOTYPE:
1791 CODE: 2057 CODE:
1792 poll_wait (); 2058 poll_wait ();
1793 2059
1794void
1795setsig (int signum = SIGIO)
1796 PROTOTYPE: ;$
1797 CODE:
1798{
1799 if (block_sig_level)
1800 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1801
1802 LOCK (reslock);
1803 main_tid = pthread_self ();
1804 main_sig = signum;
1805 UNLOCK (reslock);
1806
1807 if (main_sig && npending)
1808 pthread_kill (main_tid, main_sig);
1809}
1810
1811void
1812aio_block (SV *cb)
1813 PROTOTYPE: &
1814 PPCODE:
1815{
1816 int count;
1817
1818 block_sig ();
1819 PUSHMARK (SP);
1820 PUTBACK;
1821 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1822 SPAGAIN;
1823 unblock_sig ();
1824
1825 if (SvTRUE (ERRSV))
1826 croak (0);
1827
1828 XSRETURN (count);
1829}
1830
1831int 2060int
1832nreqs() 2061nreqs ()
1833 PROTOTYPE:
1834 CODE: 2062 CODE:
1835 RETVAL = nreqs; 2063 RETVAL = eio_nreqs ();
1836 OUTPUT: 2064 OUTPUT:
1837 RETVAL 2065 RETVAL
1838 2066
1839int 2067int
1840nready() 2068nready ()
1841 PROTOTYPE:
1842 CODE: 2069 CODE:
1843 RETVAL = get_nready (); 2070 RETVAL = eio_nready ();
1844 OUTPUT: 2071 OUTPUT:
1845 RETVAL 2072 RETVAL
1846 2073
1847int 2074int
1848npending() 2075npending ()
1849 PROTOTYPE:
1850 CODE: 2076 CODE:
1851 RETVAL = get_npending (); 2077 RETVAL = eio_npending ();
1852 OUTPUT: 2078 OUTPUT:
1853 RETVAL 2079 RETVAL
1854 2080
1855int 2081int
1856nthreads() 2082nthreads ()
1857 PROTOTYPE:
1858 CODE: 2083 CODE:
1859 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2084 RETVAL = eio_nthreads ();
1860 RETVAL = started;
1861 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1862 OUTPUT: 2085 OUTPUT:
1863 RETVAL 2086 RETVAL
1864 2087
2088int
2089fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2090 CODE:
2091 RETVAL = posix_fadvise (fh, offset, length, advice);
2092 OUTPUT:
2093 RETVAL
2094
2095IV
2096sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2097 CODE:
2098 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2099 OUTPUT:
2100 RETVAL
2101
2102void
2103mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2104 PPCODE:
2105 sv_clear_foreign (scalar);
2106{
2107 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2108 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2109 if (addr == (void *)-1)
2110 XSRETURN_NO;
2111
2112 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2113
2114 if (!(prot & PROT_WRITE))
2115 SvREADONLY_on (scalar);
2116
2117 XSRETURN_YES;
2118}
2119
2120void
2121munmap (SV *scalar)
2122 CODE:
2123 sv_clear_foreign (scalar);
2124
2125SV *
2126mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2127 CODE:
2128{
2129 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2130 void *new;
2131
2132 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2133 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2134
2135 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2136
2137 RETVAL = &PL_sv_no;
2138
2139 if (new != (void *)-1)
2140 {
2141 RETVAL = new == (void *)mg->mg_ptr
2142 ? newSVpvn ("0 but true", 10)
2143 : &PL_sv_yes;
2144
2145 mg->mg_ptr = (char *)new;
2146 mg->mg_obj = (SV *)new_length;
2147
2148 SvPVX (scalar) = mg->mg_ptr;
2149 SvCUR_set (scalar, new_length);
2150 }
2151}
2152 OUTPUT:
2153 RETVAL
2154
2155int
2156madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2157 ALIAS:
2158 mprotect = 1
2159 CODE:
2160{
2161 STRLEN svlen;
2162 void *addr = SvPVbyte (scalar, svlen);
2163 STRLEN len = SvUV (length);
2164
2165 if (offset < 0)
2166 offset += svlen;
2167
2168 if (offset < 0 || offset > svlen)
2169 croak ("offset outside of scalar");
2170
2171 if (!SvOK (length) || len + offset > svlen)
2172 len = svlen - offset;
2173
2174 addr = (void *)(((intptr_t)addr) + offset);
2175 eio_page_align (&addr, &len);
2176
2177 switch (ix)
2178 {
2179 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2180 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2181 }
2182}
2183 OUTPUT:
2184 RETVAL
2185
2186int
2187munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2188 CODE:
2189{
2190 STRLEN svlen;
2191 void *addr = SvPVbyte (scalar, svlen);
2192 size_t len = SvUV (length);
2193
2194 if (offset < 0)
2195 offset += svlen;
2196
2197 if (offset < 0 || offset > svlen)
2198 croak ("offset outside of scalar");
2199
2200 if (!SvOK (length) || len + offset > svlen)
2201 len = svlen - offset;
2202
2203 addr = (void *)(((intptr_t)addr) + offset);
2204 eio_page_align (&addr, &len);
2205#if _POSIX_MEMLOCK_RANGE
2206 RETVAL = munlock (addr, len);
2207#else
2208 RETVAL = EIO_ENOSYS ();
2209#endif
2210}
2211 OUTPUT:
2212 RETVAL
2213
2214int
2215munlockall ()
2216 CODE:
2217#if _POSIX_MEMLOCK
2218 munlockall ();
2219#else
2220 RETVAL = EIO_ENOSYS ();
2221#endif
2222 OUTPUT:
2223 RETVAL
2224
2225int
2226splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2227 CODE:
2228{
2229#if HAVE_LINUX_SPLICE
2230 loff_t off_in_, off_out_;
2231 RETVAL = splice (
2232 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2233 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2234 length, flags
2235 );
2236#else
2237 RETVAL = EIO_ENOSYS ();
2238#endif
2239}
2240 OUTPUT:
2241 RETVAL
2242
2243int
2244tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2245 CODE:
2246#if HAVE_LINUX_SPLICE
2247 RETVAL = tee (rfh, wfh, length, flags);
2248#else
2249 RETVAL = EIO_ENOSYS ();
2250#endif
2251 OUTPUT:
2252 RETVAL
2253
2254int
2255pipesize (aio_rfd rfh, int new_size = -1)
2256 PROTOTYPE: $;$
2257 CODE:
2258#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2259 if (new_size >= 0)
2260 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2261 else
2262 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2263#else
2264 errno = ENOSYS;
2265 RETVAL = -1;
2266#endif
2267 OUTPUT:
2268 RETVAL
2269
2270void
2271pipe2 (int flags = 0)
2272 PROTOTYPE: ;$
2273 PPCODE:
2274{
2275 int fd[2];
2276 int res;
2277
2278 if (flags)
2279#if HAVE_PIPE2
2280 res = pipe2 (fd, flags);
2281#else
2282 res = (errno = ENOSYS, -1);
2283#endif
2284 else
2285 res = pipe (fd);
2286
2287 if (!res)
2288 {
2289 EXTEND (SP, 2);
2290 PUSHs (newmortalFH (fd[0], O_RDONLY));
2291 PUSHs (newmortalFH (fd[1], O_WRONLY));
2292 }
2293}
2294
2295void
2296eventfd (unsigned int initval = 0, int flags = 0)
2297 PPCODE:
2298{
2299 int fd;
2300#if HAVE_EVENTFD
2301 fd = eventfd (initval, flags);
2302#else
2303 fd = (errno = ENOSYS, -1);
2304#endif
2305
2306 XPUSHs (newmortalFH (fd, O_RDWR));
2307}
2308
2309void
2310timerfd_create (int clockid, int flags = 0)
2311 PPCODE:
2312{
2313 int fd;
2314#if HAVE_TIMERFD
2315 fd = timerfd_create (clockid, flags);
2316#else
2317 fd = (errno = ENOSYS, -1);
2318#endif
2319
2320 XPUSHs (newmortalFH (fd, O_RDWR));
2321}
2322
2323void
2324timerfd_settime (SV *fh, int flags, NV interval, NV value)
2325 PPCODE:
2326{
2327 int fd = s_fileno_croak (fh, 0);
2328#if HAVE_TIMERFD
2329 int res;
2330 struct itimerspec its, ots;
2331
2332 ts_set (&its.it_interval, interval);
2333 ts_set (&its.it_value , value);
2334 res = timerfd_settime (fd, flags, &its, &ots);
2335
2336 if (!res)
2337 {
2338 EXTEND (SP, 2);
2339 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2340 PUSHs (newSVnv (ts_get (&ots.it_value)));
2341 }
2342#else
2343 errno = ENOSYS;
2344#endif
2345}
2346
2347void
2348timerfd_gettime (SV *fh)
2349 PPCODE:
2350{
2351 int fd = s_fileno_croak (fh, 0);
2352#if HAVE_TIMERFD
2353 int res;
2354 struct itimerspec ots;
2355 res = timerfd_gettime (fd, &ots);
2356
2357 if (!res)
2358 {
2359 EXTEND (SP, 2);
2360 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2361 PUSHs (newSVnv (ts_get (&ots.it_value)));
2362 }
2363#else
2364 errno = ENOSYS;
2365#endif
2366}
2367
2368UV
2369get_fdlimit ()
2370 CODE:
2371#if HAVE_RLIMITS
2372 struct rlimit rl;
2373 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2374 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2375#endif
2376 XSRETURN_UNDEF;
2377 OUTPUT:
2378 RETVAL
2379
2380void
2381min_fdlimit (UV limit = 0x7fffffffU)
2382 CODE:
2383{
2384#if HAVE_RLIMITS
2385 struct rlimit rl;
2386 rlim_t orig_rlim_max;
2387 UV bit;
2388
2389 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2390 goto fail;
2391
2392 if (rl.rlim_cur == RLIM_INFINITY)
2393 XSRETURN_YES;
2394
2395 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2396
2397 if (rl.rlim_cur < limit)
2398 {
2399 rl.rlim_cur = limit;
2400
2401 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2402 rl.rlim_max = rl.rlim_cur;
2403 }
2404
2405 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2406 XSRETURN_YES;
2407
2408 if (errno == EPERM)
2409 {
2410 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2411 /* our limit overflows a system-wide limit */
2412 /* try an adaptive algorithm, but do not lower the hardlimit */
2413 rl.rlim_max = 0;
2414 for (bit = 0x40000000U; bit; bit >>= 1)
2415 {
2416 rl.rlim_max |= bit;
2417 rl.rlim_cur = rl.rlim_max;
2418
2419 /* nevr decrease the hard limit */
2420 if (rl.rlim_max < orig_rlim_max)
2421 break;
2422
2423 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2424 rl.rlim_max &= ~bit; /* too high, remove bit again */
2425 }
2426
2427 /* now, raise the soft limit to the max permitted */
2428 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2429 {
2430 rl.rlim_cur = rl.rlim_max;
2431 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2432 errno = EPERM;
2433 }
2434 }
2435#endif
2436 fail:
2437 XSRETURN_UNDEF;
2438}
2439
2440void _on_next_submit (SV *cb)
2441 CODE:
2442 SvREFCNT_dec (on_next_submit);
2443 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2444
1865PROTOTYPES: DISABLE 2445PROTOTYPES: DISABLE
2446
2447MODULE = IO::AIO PACKAGE = IO::AIO::WD
2448
2449BOOT:
2450{
2451 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2452 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2453}
2454
2455void
2456DESTROY (SV *self)
2457 CODE:
2458{
2459 aio_wd wd = SvAIO_WD (self);
2460#if HAVE_AT
2461 {
2462 SV *callback = &PL_sv_undef;
2463 dREQ; /* clobbers next_pri :/ */
2464 next_pri = req->pri; /* restore next_pri */
2465 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2466 req->type = EIO_WD_CLOSE;
2467 req->wd = wd;
2468 REQ_SEND;
2469 }
2470#else
2471 eio_wd_close_sync (wd);
2472#endif
2473}
1866 2474
1867MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2475MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1868 2476
1869void 2477void
1870cancel (aio_req_ornot req) 2478cancel (aio_req_ornot req)
1871 CODE: 2479 CODE:
1872 req_cancel (req); 2480 eio_cancel (req);
1873 2481
1874void 2482void
1875cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2483cb (aio_req_ornot req, SV *callback = NO_INIT)
1876 CODE: 2484 PPCODE:
2485{
2486 if (GIMME_V != G_VOID)
2487 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2488
2489 if (items > 1)
2490 {
2491 SV *cb_cv = get_cb (callback);
2492
1877 SvREFCNT_dec (req->callback); 2493 SvREFCNT_dec (req->callback);
1878 req->callback = newSVsv (callback); 2494 req->callback = SvREFCNT_inc (cb_cv);
2495 }
2496}
1879 2497
1880MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2498MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1881 2499
1882void 2500void
1883add (aio_req grp, ...) 2501add (aio_req grp, ...)
1884 PPCODE: 2502 PPCODE:
1885{ 2503{
1886 int i; 2504 int i;
1887 aio_req req;
1888
1889 if (main_sig && !block_sig_level)
1890 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1891 2505
1892 if (grp->int1 == 2) 2506 if (grp->int1 == 2)
1893 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2507 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1894 2508
1895 for (i = 1; i < items; ++i ) 2509 for (i = 1; i < items; ++i )
1896 { 2510 {
2511 aio_req req;
2512
1897 if (GIMME_V != G_VOID) 2513 if (GIMME_V != G_VOID)
1898 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2514 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1899 2515
1900 req = SvAIO_REQ (ST (i)); 2516 req = SvAIO_REQ (ST (i));
1901 2517
1902 if (req) 2518 if (req)
1903 { 2519 eio_grp_add (grp, req);
1904 ++grp->size;
1905 req->grp = grp;
1906
1907 req->grp_prev = 0;
1908 req->grp_next = grp->grp_first;
1909
1910 if (grp->grp_first)
1911 grp->grp_first->grp_prev = req;
1912
1913 grp->grp_first = req;
1914 }
1915 } 2520 }
1916} 2521}
1917 2522
1918void 2523void
1919cancel_subs (aio_req_ornot req) 2524cancel_subs (aio_req_ornot req)
… …
1928 AV *av; 2533 AV *av;
1929 2534
1930 grp->errorno = errno; 2535 grp->errorno = errno;
1931 2536
1932 av = newAV (); 2537 av = newAV ();
2538 av_extend (av, items - 1);
1933 2539
1934 for (i = 1; i < items; ++i ) 2540 for (i = 1; i < items; ++i )
1935 av_push (av, newSVsv (ST (i))); 2541 av_push (av, newSVsv (ST (i)));
1936 2542
1937 SvREFCNT_dec (grp->sv1); 2543 SvREFCNT_dec (grp->sv1);
… …
1944 grp->errorno = errorno; 2550 grp->errorno = errorno;
1945 2551
1946void 2552void
1947limit (aio_req grp, int limit) 2553limit (aio_req grp, int limit)
1948 CODE: 2554 CODE:
1949 grp->int2 = limit; 2555 eio_grp_limit (grp, limit);
1950 aio_grp_feed (grp);
1951 2556
1952void 2557void
1953feed (aio_req grp, SV *callback=&PL_sv_undef) 2558feed (aio_req grp, SV *callback = &PL_sv_undef)
1954 CODE: 2559 CODE:
1955{ 2560{
1956 SvREFCNT_dec (grp->sv2); 2561 SvREFCNT_dec (grp->sv2);
1957 grp->sv2 = newSVsv (callback); 2562 grp->sv2 = newSVsv (callback);
2563 grp->feed = aio_grp_feed;
1958 2564
1959 if (grp->int2 <= 0) 2565 if (grp->int2 <= 0)
1960 grp->int2 = 2; 2566 grp->int2 = 2;
1961 2567
1962 aio_grp_feed (grp); 2568 eio_grp_limit (grp, grp->int2);
1963} 2569}
1964 2570

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