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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.98 by root, Wed May 9 06:45:12 2007 UTC vs.
Revision 1.263 by root, Sun Aug 12 06:03:20 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>
23 22
24#if HAVE_SENDFILE 23#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
25# if __linux
26# include <sys/sendfile.h>
27# elif __freebsd
28# include <sys/socket.h>
29# include <sys/uio.h> 24# include <sys/mman.h>
30# elif __hpux 25#endif
26
27/* the incompetent fool that created musl keeps __linux__, refuses
28 * to implement any linux standard apis, and also has no way to test
29 * for his broken iplementation. don't complain to me if this fails
30 * for you.
31 */
32#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
33# include <linux/fs.h>
34# ifdef FS_IOC_FIEMAP
35# include <linux/types.h>
36# include <linux/fiemap.h>
37# define HAVE_FIEMAP 1
38# endif
39#endif
40
41/* perl namespace pollution */
42#undef VERSION
43
44/* perl stupidly overrides readdir and maybe others */
45/* with thread-unsafe versions, imagine that :( */
46#undef readdir
47#undef opendir
48#undef closedir
49
50#ifdef _WIN32
51
52 // perl overrides all those nice libc functions
53
54 #undef malloc
55 #undef free
56 #undef open
57 #undef read
58 #undef write
59 #undef send
60 #undef recv
61 #undef stat
62 #undef lstat
63 #undef fstat
64 #undef truncate
65 #undef ftruncate
66 #undef open
67 #undef link
68 #undef close
69 #undef unlink
70 #undef mkdir
71 #undef rmdir
72 #undef rename
73 #undef lseek
74 #undef opendir
75 #undef readdir
76 #undef closedir
77 #undef chmod
78 #undef fchmod
79 #undef dup
80 #undef dup2
81 #undef abort
82 #undef pipe
83
84 #define EIO_STRUCT_STAT struct _stati64
85 #define EIO_STRUCT_STATI64
86
87#else
88
31# include <sys/socket.h> 89 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 90 #include <sys/select.h>
91 #include <unistd.h>
92 #include <utime.h>
93 #include <signal.h>
94
95 #define EIO_STRUCT_STAT Stat_t
96
97#endif
98
99/*****************************************************************************/
100
101#if __GNUC__ >= 3
102# define expect(expr,value) __builtin_expect ((expr),(value))
103#else
104# define expect(expr,value) (expr)
105#endif
106
107#define expect_false(expr) expect ((expr) != 0, 0)
108#define expect_true(expr) expect ((expr) != 0, 1)
109
110/*****************************************************************************/
111
112#include "config.h"
113
114#if HAVE_ST_XTIMENSEC
115# define ATIMENSEC PL_statcache.st_atimensec
116# define MTIMENSEC PL_statcache.st_mtimensec
117# define CTIMENSEC PL_statcache.st_ctimensec
118#elif HAVE_ST_XTIMESPEC
119# define ATIMENSEC PL_statcache.st_atim.tv_nsec
120# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
121# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
122#else
123# define ATIMENSEC 0
124# define MTIMENSEC 0
125# define CTIMENSEC 0
126#endif
127
128#include "schmorp.h"
129
130#if HAVE_EVENTFD
131# include <sys/eventfd.h>
132#endif
133
134#if HAVE_TIMERFD
135# include <sys/timerfd.h>
136#endif
137
138#if HAVE_RLIMITS
139 #include <sys/time.h>
140 #include <sys/resource.h>
141#endif
142
143typedef SV SV8; /* byte-sv, used for argument-checking */
144typedef int aio_rfd; /* read file desriptor */
145typedef int aio_wfd; /* write file descriptor */
146
147static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
148
149#define EIO_REQ_MEMBERS \
150 SV *callback; \
151 SV *sv1, *sv2; \
152 SV *sv3, *sv4; \
153 STRLEN stroffset; \
154 SV *self;
155
156#define EIO_NO_WRAPPERS 1
157
158#include "libeio/eio.h"
159
160static int req_invoke (eio_req *req);
161#define EIO_FINISH(req) req_invoke (req)
162static void req_destroy (eio_req *grp);
163#define EIO_DESTROY(req) req_destroy (req)
164
165#include "libeio/eio.c"
166
167#if !HAVE_POSIX_FADVISE
168# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
169#endif
170
171#if !HAVE_POSIX_MADVISE
172# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
173#endif
174
175#ifndef MAP_ANONYMOUS
176# ifdef MAP_ANON
177# define MAP_ANONYMOUS MAP_ANON
34# else 178# else
35# error sendfile support requested but not available 179# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 180# endif
37#endif 181#endif
38 182
39/* number of seconds after which idle threads exit */ 183#ifndef makedev
40#define IDLE_TIMEOUT 10 184# define makedev(maj,min) (((maj) << 8) | (min))
41
42/* used for struct dirent, AIX doesn't provide it */
43#ifndef NAME_MAX
44# define NAME_MAX 4096
45#endif 185#endif
186#ifndef major
187# define major(dev) ((dev) >> 8)
188#endif
189#ifndef minor
190# define minor(dev) ((dev) & 0xff)
191#endif
46 192
47/* buffer size for various temporary buffers */ 193#if PAGESIZE <= 0
48#define AIO_BUFSIZE 65536 194# define PAGESIZE sysconf (_SC_PAGESIZE)
195#endif
49 196
50#define dBUF \ 197/*****************************************************************************/
51 char *aio_buf; \ 198
52 LOCK (wrklock); \ 199#if !_POSIX_MAPPED_FILES
53 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 200# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
54 UNLOCK (wrklock); \ 201# define munmap(addr,length) EIO_ENOSYS ()
55 if (!aio_buf) \ 202#endif
203
204#if !_POSIX_MEMORY_PROTECTION
205# define mprotect(addr,len,prot) EIO_ENOSYS ()
206#endif
207
208#if !MREMAP_MAYMOVE
209# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
210#endif
211
212#define FOREIGN_MAGIC PERL_MAGIC_ext
213
214static int ecb_cold
215mmap_free (pTHX_ SV *sv, MAGIC *mg)
216{
217 int old_errno = errno;
218 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
219 errno = old_errno;
220
221 mg->mg_obj = 0; /* just in case */
222
223 SvREADONLY_off (sv);
224
225 if (SvPVX (sv) != mg->mg_ptr)
226 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
227
228 SvCUR_set (sv, 0);
229 SvPVX (sv) = 0;
230 SvOK_off (sv);
231
56 return -1; 232 return 0;
233}
57 234
58typedef SV SV8; /* byte-sv, used for argument-checking */ 235static MGVTBL mmap_vtbl = {
59 236 0, 0, 0, 0, mmap_free
60enum {
61 REQ_QUIT,
62 REQ_OPEN, REQ_CLOSE,
63 REQ_READ, REQ_WRITE, REQ_READAHEAD,
64 REQ_SENDFILE,
65 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
66 REQ_FSYNC, REQ_FDATASYNC,
67 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
68 REQ_MKNOD, REQ_READDIR,
69 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
70 REQ_GROUP, REQ_NOP,
71 REQ_BUSY,
72}; 237};
73 238
74#define AIO_REQ_KLASS "IO::AIO::REQ" 239static int ecb_cold
75#define AIO_GRP_KLASS "IO::AIO::GRP" 240sysfree_free (pTHX_ SV *sv, MAGIC *mg)
76
77typedef struct aio_cb
78{ 241{
79 struct aio_cb *volatile next; 242 free (mg->mg_ptr);
243 mg->mg_obj = 0; /* just in case */
80 244
81 SV *callback, *fh; 245 SvREADONLY_off (sv);
82 SV *sv1, *sv2;
83 void *ptr1, *ptr2;
84 off_t offs;
85 size_t size;
86 ssize_t result;
87 246
88 STRLEN stroffset; 247 if (SvPVX (sv) != mg->mg_ptr)
89 int type; 248 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
90 int int1, int2;
91 int errorno;
92 mode_t mode; /* open */
93 249
94 unsigned char flags; 250 SvCUR_set (sv, 0);
95 unsigned char pri; 251 SvPVX (sv) = 0;
252 SvOK_off (sv);
96 253
97 SV *self; /* the perl counterpart of this request, if any */ 254 return 0;
98 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 255}
99} aio_cb;
100 256
101enum { 257static MGVTBL sysfree_vtbl = {
102 FLAG_CANCELLED = 0x01, /* request was cancelled */ 258 0, 0, 0, 0, sysfree_free
103 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
104 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
105}; 259};
106 260
107typedef aio_cb *aio_req; 261/*****************************************************************************/
108typedef aio_cb *aio_req_ornot;
109 262
110enum { 263/* helper: set scalar to foreign ptr with custom free */
111 PRI_MIN = -4, 264static void
112 PRI_MAX = 4, 265sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
113
114 DEFAULT_PRI = 0,
115 PRI_BIAS = -PRI_MIN,
116 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
117};
118
119#define AIO_TICKS ((1000000 + 1023) >> 10)
120
121static unsigned int max_poll_time = 0;
122static unsigned int max_poll_reqs = 0;
123
124/* calculcate time difference in ~1/AIO_TICKS of a second */
125static int tvdiff (struct timeval *tv1, struct timeval *tv2)
126{ 266{
127 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 267 sv_force_normal (sv);
128 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
129}
130 268
131static thread_t main_tid; 269 /* we store the length in mg_obj, as namlen is I32 :/ */
132static int main_sig; 270 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
133static int block_sig_level; 271 ->mg_obj = (SV *)length;
134 272
135void block_sig () 273 SvUPGRADE (sv, SVt_PV); /* nop... */
136{
137 sigset_t ss;
138 274
139 if (block_sig_level++) 275 if (SvLEN (sv))
276 Safefree (SvPVX (sv));
277
278 SvPVX (sv) = (char *)addr;
279 SvCUR_set (sv, length);
280 SvLEN_set (sv, 0);
281 SvPOK_only (sv);
282}
283
284static void
285sv_clear_foreign (SV *sv)
286{
287 /* todo: iterate over magic and only free ours, but of course */
288 /* the perl5porters will call that (correct) behaviour buggy */
289 sv_unmagic (sv, FOREIGN_MAGIC);
290}
291
292/*****************************************************************************/
293
294/* defines all sorts of constants to 0 unless they are already defined */
295/* also provides const_iv_ and const_niv_ macros for them */
296#include "def0.h"
297
298/*****************************************************************************/
299
300static void
301fiemap (eio_req *req)
302{
303 req->result = -1;
304
305#if HAVE_FIEMAP
306 /* assume some c99 */
307 struct fiemap *fiemap = 0;
308 size_t end_offset;
309 int count = req->int3;
310
311 req->flags |= EIO_FLAG_PTR1_FREE;
312
313 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
314 /* increase in 3.5kb steps */
315 if (count < 0)
316 count = 8;
317
318 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
319 errno = ENOMEM;
320 if (!fiemap)
140 return; 321 return;
141 322
142 if (!main_sig) 323 req->ptr1 = fiemap;
324
325 fiemap->fm_start = req->offs;
326 fiemap->fm_length = req->size;
327 fiemap->fm_flags = req->int2;
328 fiemap->fm_extent_count = count;
329
330 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
143 return; 331 return;
144 332
145 sigemptyset (&ss); 333 if (req->int3 >= 0 /* not autosizing */
146 sigaddset (&ss, main_sig); 334 || !fiemap->fm_mapped_extents /* no more extents */
147 pthread_sigmask (SIG_BLOCK, &ss, 0); 335 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
148} 336 goto done;
149 337
150void unblock_sig () 338 /* else we have to loop -
151{ 339 * it would be tempting (actually I tried that first) to just query the
152 sigset_t ss; 340 * number of extents needed, but linux often feels like not returning all
341 * extents, without telling us it left any out. this complicates
342 * this quite a bit.
343 */
153 344
154 if (--block_sig_level) 345 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
155 return;
156 346
157 if (!main_sig) 347 for (;;)
158 return;
159
160 sigemptyset (&ss);
161 sigaddset (&ss, main_sig);
162 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
163}
164
165static int next_pri = DEFAULT_PRI + PRI_BIAS;
166
167static unsigned int started, idle, wanted;
168
169/* worker threads management */
170static mutex_t wrklock = MUTEX_INIT;
171
172typedef struct worker {
173 /* locked by wrklock */
174 struct worker *prev, *next;
175
176 thread_t tid;
177
178 /* locked by reslock, reqlock or wrklock */
179 aio_req req; /* currently processed request */
180 void *dbuf;
181 DIR *dirp;
182} worker;
183
184static worker wrk_first = { &wrk_first, &wrk_first, 0 };
185
186static void worker_clear (worker *wrk)
187{
188 if (wrk->dirp)
189 { 348 {
190 closedir (wrk->dirp); 349 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
191 wrk->dirp = 0; 350 char scratch[3072];
192 } 351 struct fiemap *incmap = (struct fiemap *)scratch;
193 352
194 if (wrk->dbuf) 353 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
195 { 354 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
196 free (wrk->dbuf); 355 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
197 wrk->dbuf = 0; 356 incmap->fm_flags = fiemap->fm_flags;
198 } 357 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
199}
200 358
201static void worker_free (worker *wrk) 359 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
202{
203 wrk->next->prev = wrk->prev;
204 wrk->prev->next = wrk->next;
205
206 free (wrk);
207}
208
209static volatile unsigned int nreqs, nready, npending;
210static volatile unsigned int max_idle = 4;
211static volatile unsigned int max_outstanding = 0xffffffff;
212static int respipe [2];
213
214static mutex_t reslock = MUTEX_INIT;
215static mutex_t reqlock = MUTEX_INIT;
216static cond_t reqwait = COND_INIT;
217
218#if WORDACCESS_UNSAFE
219
220static unsigned int get_nready ()
221{
222 unsigned int retval;
223
224 LOCK (reqlock);
225 retval = nready;
226 UNLOCK (reqlock);
227
228 return retval;
229}
230
231static unsigned int get_npending ()
232{
233 unsigned int retval;
234
235 LOCK (reslock);
236 retval = npending;
237 UNLOCK (reslock);
238
239 return retval;
240}
241
242static unsigned int get_nthreads ()
243{
244 unsigned int retval;
245
246 LOCK (wrklock);
247 retval = started;
248 UNLOCK (wrklock);
249
250 return retval;
251}
252
253#else
254
255# define get_nready() nready
256# define get_npending() npending
257# define get_nthreads() started
258
259#endif
260
261/*
262 * a somewhat faster data structure might be nice, but
263 * with 8 priorities this actually needs <20 insns
264 * per shift, the most expensive operation.
265 */
266typedef struct {
267 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
268 int size;
269} reqq;
270
271static reqq req_queue;
272static reqq res_queue;
273
274int reqq_push (reqq *q, aio_req req)
275{
276 int pri = req->pri;
277 req->next = 0;
278
279 if (q->qe[pri])
280 {
281 q->qe[pri]->next = req;
282 q->qe[pri] = req;
283 }
284 else
285 q->qe[pri] = q->qs[pri] = req;
286
287 return q->size++;
288}
289
290aio_req reqq_shift (reqq *q)
291{
292 int pri;
293
294 if (!q->size)
295 return 0; 360 return;
296 361
297 --q->size; 362 if (!incmap->fm_mapped_extents)
363 goto done;
298 364
299 for (pri = NUM_PRI; pri--; ) 365 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
300 { 366 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
301 aio_req req = q->qs[pri]; 367 errno = ENOMEM;
302
303 if (req) 368 if (!fiemap)
369 return;
370
371 req->ptr1 = fiemap;
372
373 for (count = 0; count < incmap->fm_mapped_extents; ++count)
304 { 374 {
305 if (!(q->qs[pri] = req->next)) 375 struct fiemap_extent *e = incmap->fm_extents + count;
306 q->qe[pri] = 0;
307 376
308 return req; 377 if (e->fe_logical + e->fe_length >= end_offset)
378 goto done;
379
380 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
381
382 if (e->fe_flags & FIEMAP_EXTENT_LAST)
383 goto done;
384
309 } 385 }
310 } 386 }
311 387
312 abort (); 388done:
313} 389 req->result = 0;
314 390
315static int poll_cb (); 391#else
316static int req_invoke (aio_req req); 392 errno = ENOSYS;
393#endif
394}
395
396/*****************************************************************************/
397
398enum {
399 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
400};
401
402typedef eio_req *aio_req;
403typedef eio_req *aio_req_ornot;
404typedef eio_wd aio_wd;
405
406static SV *on_next_submit;
407static int next_pri = EIO_PRI_DEFAULT;
408static int max_outstanding;
409
410static s_epipe respipe;
411
317static void req_free (aio_req req); 412static void req_destroy (aio_req req);
318static void req_cancel (aio_req req); 413static void req_cancel (aio_req req);
319 414
415static void
416want_poll (void)
417{
418 /* write a dummy byte to the pipe so fh becomes ready */
419 s_epipe_signal (&respipe);
420}
421
422static void
423done_poll (void)
424{
425 /* read any signals sent by the worker threads */
426 s_epipe_drain (&respipe);
427}
428
320/* must be called at most once */ 429/* must be called at most once */
321static SV *req_sv (aio_req req, const char *klass) 430static SV *
431req_sv (aio_req req, HV *stash)
322{ 432{
323 if (!req->self) 433 if (!req->self)
324 { 434 {
325 req->self = (SV *)newHV (); 435 req->self = (SV *)newHV ();
326 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 436 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
327 } 437 }
328 438
329 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 439 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
330} 440}
331 441
332static aio_req SvAIO_REQ (SV *sv) 442static SV *
443newSVaio_wd (aio_wd wd)
444{
445 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
446}
447
448static aio_req
449SvAIO_REQ (SV *sv)
333{ 450{
334 MAGIC *mg; 451 MAGIC *mg;
335 452
336 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 453 if (!SvROK (sv)
454 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
455 || (SvSTASH (SvRV (sv)) != aio_grp_stash
456 && SvSTASH (SvRV (sv)) != aio_req_stash
457 && !sv_derived_from (sv, "IO::AIO::REQ")))
337 croak ("object of class " AIO_REQ_KLASS " expected"); 458 croak ("object of class IO::AIO::REQ expected");
338 459
339 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 460 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
340 461
341 return mg ? (aio_req)mg->mg_ptr : 0; 462 return mg ? (aio_req)mg->mg_ptr : 0;
342} 463}
343 464
465static aio_wd
466SvAIO_WD (SV *sv)
467{
468 if (!SvROK (sv)
469 || SvTYPE (SvRV (sv)) != SVt_PVMG
470 || SvSTASH (SvRV (sv)) != aio_wd_stash)
471 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
472
473 return (aio_wd)(long)SvIVX (SvRV (sv));
474}
475
476static SV *
477newmortalFH (int fd, int flags)
478{
479 if (fd < 0)
480 return &PL_sv_undef;
481
482 GV *gv = (GV *)sv_newmortal ();
483 char sym[64];
484 int symlen;
485
486 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
487 gv_init (gv, aio_stash, sym, symlen, 0);
488
489 symlen = snprintf (
490 sym,
491 sizeof (sym),
492 "%s&=%d",
493 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
494 fd
495 );
496
497 return do_open (gv, sym, symlen, 0, 0, 0, 0)
498 ? (SV *)gv : &PL_sv_undef;
499}
500
501static void
344static void aio_grp_feed (aio_req grp) 502aio_grp_feed (aio_req grp)
345{ 503{
346 block_sig (); 504 if (grp->sv2 && SvOK (grp->sv2))
347
348 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
349 { 505 {
350 int old_len = grp->size;
351
352 if (grp->sv2 && SvOK (grp->sv2))
353 {
354 dSP; 506 dSP;
355 507
356 ENTER; 508 ENTER;
357 SAVETMPS; 509 SAVETMPS;
358 PUSHMARK (SP); 510 PUSHMARK (SP);
359 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 511 XPUSHs (req_sv (grp, aio_grp_stash));
360 PUTBACK; 512 PUTBACK;
361 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 513 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
362 SPAGAIN; 514 SPAGAIN;
363 FREETMPS; 515 FREETMPS;
364 LEAVE; 516 LEAVE;
365 }
366
367 /* stop if no progress has been made */
368 if (old_len == grp->size)
369 {
370 SvREFCNT_dec (grp->sv2);
371 grp->sv2 = 0;
372 break;
373 }
374 } 517 }
375
376 unblock_sig ();
377} 518}
378 519
379static void aio_grp_dec (aio_req grp) 520static void
521req_submit (eio_req *req)
380{ 522{
381 --grp->size; 523 eio_submit (req);
382 524
383 /* call feeder, if applicable */ 525 if (expect_false (on_next_submit))
384 aio_grp_feed (grp);
385
386 /* finish, if done */
387 if (!grp->size && grp->int1)
388 { 526 {
389 block_sig (); 527 dSP;
528 SV *cb = sv_2mortal (on_next_submit);
390 529
391 if (!req_invoke (grp)) 530 on_next_submit = 0;
392 {
393 req_free (grp);
394 unblock_sig ();
395 croak (0);
396 }
397 531
398 req_free (grp); 532 PUSHMARK (SP);
399 unblock_sig (); 533 PUTBACK;
534 call_sv (cb, G_DISCARD | G_EVAL);
400 } 535 }
401} 536}
402 537
538static int
403static int req_invoke (aio_req req) 539req_invoke (eio_req *req)
404{ 540{
405 dSP;
406
407 if (req->flags & FLAG_SV1_RO_OFF) 541 if (req->flags & FLAG_SV2_RO_OFF)
408 SvREADONLY_off (req->sv1); 542 SvREADONLY_off (req->sv2);
409 543
410 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 544 if (!EIO_CANCELLED (req) && req->callback)
411 { 545 {
546 dSP;
547 static SV *sv_result_cache; /* caches the result integer SV */
548 SV *sv_result;
549
412 ENTER; 550 ENTER;
413 SAVETMPS; 551 SAVETMPS;
414 PUSHMARK (SP); 552 PUSHMARK (SP);
415 EXTEND (SP, 1); 553 EXTEND (SP, 1);
416 554
555 /* do not recreate the result IV from scratch each time */
556 if (expect_true (sv_result_cache))
557 {
558 sv_result = sv_result_cache; sv_result_cache = 0;
559 SvIV_set (sv_result, req->result);
560 SvIOK_only (sv_result);
561 }
562 else
563 {
564 sv_result = newSViv (req->result);
565 SvREADONLY_on (sv_result);
566 }
567
417 switch (req->type) 568 switch (req->type)
418 { 569 {
570 case EIO_WD_OPEN:
571 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
572 break;
573
419 case REQ_READDIR: 574 case EIO_READDIR:
420 { 575 {
421 SV *rv = &PL_sv_undef; 576 SV *rv = &PL_sv_undef;
422 577
423 if (req->result >= 0) 578 if (req->result >= 0)
424 { 579 {
425 int i; 580 int i;
426 char *buf = req->ptr2; 581 char *names = (char *)req->ptr2;
582 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
427 AV *av = newAV (); 583 AV *av = newAV ();
428 584
429 av_extend (av, req->result - 1); 585 av_extend (av, req->result - 1);
430 586
431 for (i = 0; i < req->result; ++i) 587 for (i = 0; i < req->result; ++i)
432 { 588 {
433 SV *sv = newSVpv (buf, 0); 589 if (req->int1 & EIO_READDIR_DENTS)
590 {
591 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
434 592
593 if (req->int1 & EIO_READDIR_CUSTOM2)
594 {
595 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
596 AV *avent = newAV ();
597
598 av_extend (avent, 2);
599
600 if (!sv_type [ent->type])
601 {
602 sv_type [ent->type] = newSViv (ent->type);
603 SvREADONLY_on (sv_type [ent->type]);
604 }
605
606 av_store (avent, 0, namesv);
607 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
608 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
609
610 av_store (av, i, newRV_noinc ((SV *)avent));
611 }
612 else
435 av_store (av, i, sv); 613 av_store (av, i, namesv);
614
615 ++ent;
616 }
617 else
618 {
619 SV *name = newSVpv (names, 0);
620 av_store (av, i, name);
436 buf += SvCUR (sv) + 1; 621 names += SvCUR (name) + 1;
622 }
437 } 623 }
438 624
439 rv = sv_2mortal (newRV_noinc ((SV *)av)); 625 rv = sv_2mortal (newRV_noinc ((SV *)av));
440 } 626 }
441 627
442 PUSHs (rv); 628 PUSHs (rv);
629
630 if (req->int1 & EIO_READDIR_CUSTOM1)
631 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
443 } 632 }
444 break; 633 break;
445 634
446 case REQ_OPEN: 635 case EIO_OPEN:
636 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
637 break;
638
639 case EIO_STATVFS:
640 case EIO_FSTATVFS:
447 { 641 {
448 /* convert fd to fh */ 642 SV *rv = &PL_sv_undef;
449 SV *fh; 643
644#ifndef _WIN32
645 if (req->result >= 0)
646 {
647 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
648 HV *hv = newHV ();
649 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
650 * chooses to make it a struct.
651 */
652 unsigned long fsid = 0;
653 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
450 654
451 PUSHs (sv_2mortal (newSViv (req->result))); 655 rv = sv_2mortal (newRV_noinc ((SV *)hv));
452 PUTBACK;
453 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
454 SPAGAIN;
455 656
456 fh = POPs; 657 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
457 PUSHMARK (SP); 658 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
659 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
660 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
661 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
662 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
663 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
664 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
665 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
666 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
667 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
668 }
669#endif
670
458 XPUSHs (fh); 671 PUSHs (rv);
459 } 672 }
673
460 break; 674 break;
461 675
462 case REQ_GROUP: 676 case EIO_GROUP:
463 req->int1 = 2; /* mark group as finished */ 677 req->int1 = 2; /* mark group as finished */
464 678
465 if (req->sv1) 679 if (req->sv1)
466 { 680 {
467 int i; 681 int i;
… …
471 for (i = 0; i <= AvFILL (av); ++i) 685 for (i = 0; i <= AvFILL (av); ++i)
472 PUSHs (*av_fetch (av, i, 0)); 686 PUSHs (*av_fetch (av, i, 0));
473 } 687 }
474 break; 688 break;
475 689
476 case REQ_NOP: 690 case EIO_NOP:
477 case REQ_BUSY: 691 case EIO_BUSY:
478 break; 692 break;
479 693
480 case REQ_READLINK: 694 case EIO_READLINK:
695 case EIO_REALPATH:
481 if (req->result > 0) 696 if (req->result > 0)
697 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
698 break;
699
700 case EIO_STAT:
701 case EIO_LSTAT:
702 case EIO_FSTAT:
703 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
704
705 if (!(PL_laststatval = req->result))
706 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
707 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
708
709 PUSHs (sv_result);
710 break;
711
712 case EIO_SEEK:
713 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
714 break;
715
716 case EIO_READ:
717 {
718 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
719 *SvEND (req->sv2) = 0;
720 SvPOK_only (req->sv2);
721 SvSETMAGIC (req->sv2);
722 PUSHs (sv_result);
723 }
724 break;
725
726 case EIO_SLURP:
727 {
728 if (req->result >= 0)
729 {
730 /* if length was originally not known, we steal the malloc'ed memory */
731 if (req->flags & EIO_FLAG_PTR2_FREE)
732 {
733 req->flags &= ~EIO_FLAG_PTR2_FREE;
734 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
735 }
736 else
737 {
738 SvCUR_set (req->sv2, req->result);
739 *SvEND (req->sv2) = 0;
740 SvPOK_only (req->sv2);
741 }
742
743 SvSETMAGIC (req->sv2);
744 }
745
746 PUSHs (sv_result);
747 }
748 break;
749
750 case EIO_CUSTOM:
751 if (req->feed == fiemap)
482 { 752 {
483 SvCUR_set (req->sv1, req->result); 753#if HAVE_FIEMAP
484 *SvEND (req->sv1) = 0;
485 PUSHs (req->sv1); 754 if (!req->result)
755 {
756 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
757
758 if (fiemap->fm_extent_count)
759 {
760 AV *av = newAV ();
761 int i;
762
763 while (fiemap->fm_mapped_extents)
764 {
765 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
766 AV *ext_av = newAV ();
767
768 av_store (ext_av, 3, newSVuv (extent->fe_flags));
769 av_store (ext_av, 2, newSVval64 (extent->fe_length));
770 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
771 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
772
773 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
774 }
775
776 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
777 }
778 else
779 {
780 SvIV_set (sv_result, fiemap->fm_mapped_extents);
781 PUSHs (sv_result);
782 }
783 }
784#endif
486 } 785 }
786 else
787 PUSHs (sv_result);
487 break; 788 break;
488 789
489 case REQ_STAT: 790 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
490 case REQ_LSTAT: 791 if (req->result > 0)
491 case REQ_FSTAT: 792 SvIV_set (sv_result, 0);
492 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 793 /* FALLTHROUGH */
493 PL_laststatval = req->result;
494 PL_statcache = *(Stat_t *)(req->ptr2);
495 PUSHs (sv_2mortal (newSViv (req->result)));
496 break;
497
498 case REQ_READ:
499 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));
500 *SvEND (req->sv1) = 0;
501 PUSHs (sv_2mortal (newSViv (req->result)));
502 break;
503 794
504 default: 795 default:
505 PUSHs (sv_2mortal (newSViv (req->result))); 796 PUSHs (sv_result);
506 break; 797 break;
507 } 798 }
508 799
509 errno = req->errorno; 800 errno = req->errorno;
510 801
511 PUTBACK; 802 PUTBACK;
512 call_sv (req->callback, G_VOID | G_EVAL); 803 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
513 SPAGAIN; 804 SPAGAIN;
805
806 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
807 SvREFCNT_dec (sv_result);
808 else
809 sv_result_cache = sv_result;
514 810
515 FREETMPS; 811 FREETMPS;
516 LEAVE; 812 LEAVE;
813
814 PUTBACK;
517 } 815 }
518 816
519 if (req->grp)
520 {
521 aio_req grp = req->grp;
522
523 /* unlink request */
524 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
525 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
526
527 if (grp->grp_first == req)
528 grp->grp_first = req->grp_next;
529
530 aio_grp_dec (grp);
531 }
532
533 return !SvTRUE (ERRSV); 817 return !!SvTRUE (ERRSV);
534} 818}
535 819
536static void req_free (aio_req req) 820static void
821req_destroy (aio_req req)
537{ 822{
538 if (req->self) 823 if (req->self)
539 { 824 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 825 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 826 SvREFCNT_dec (req->self);
542 } 827 }
543 828
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 829 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 830 SvREFCNT_dec (req->sv2);
831 SvREFCNT_dec (req->sv3);
832 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 833 SvREFCNT_dec (req->callback);
548 834
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 835 free (req);
553} 836}
554 837
838static void
555static void req_cancel_subs (aio_req grp) 839req_cancel_subs (aio_req grp)
556{ 840{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 841 if (grp->type != EIO_GROUP)
560 return; 842 return;
561 843
562 SvREFCNT_dec (grp->sv2); 844 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 845 grp->sv2 = 0;
564 846
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 847 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 848}
568 849
569static void req_cancel (aio_req req) 850static void ecb_cold
851create_respipe (void)
570{ 852{
571 req->flags |= FLAG_CANCELLED; 853 if (s_epipe_renew (&respipe))
572 854 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 855}
575 856
576static void *aio_proc(void *arg); 857static void
577 858poll_wait (void)
578static void start_thread (void)
579{ 859{
580 worker *wrk = calloc (1, sizeof (worker));
581
582 if (!wrk)
583 croak ("unable to allocate worker thread data");
584
585 LOCK (wrklock);
586
587 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
588 {
589 wrk->prev = &wrk_first;
590 wrk->next = wrk_first.next;
591 wrk_first.next->prev = wrk;
592 wrk_first.next = wrk;
593 ++started;
594 }
595 else
596 free (wrk);
597
598 UNLOCK (wrklock);
599}
600
601static void maybe_start_thread ()
602{
603 if (get_nthreads () >= wanted)
604 return;
605
606 /* todo: maybe use idle here, but might be less exact */
607 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
608 return;
609
610 start_thread ();
611}
612
613static void req_send (aio_req req)
614{
615 block_sig ();
616
617 ++nreqs;
618
619 LOCK (reqlock);
620 ++nready;
621 reqq_push (&req_queue, req);
622 COND_SIGNAL (reqwait);
623 UNLOCK (reqlock);
624
625 unblock_sig ();
626
627 maybe_start_thread ();
628}
629
630static void end_thread (void)
631{
632 aio_req req;
633
634 Newz (0, req, 1, aio_cb);
635
636 req->type = REQ_QUIT;
637 req->pri = PRI_MAX + PRI_BIAS;
638
639 LOCK (reqlock);
640 reqq_push (&req_queue, req);
641 COND_SIGNAL (reqwait);
642 UNLOCK (reqlock);
643
644 LOCK (wrklock);
645 --started;
646 UNLOCK (wrklock);
647}
648
649static void set_max_idle (int nthreads)
650{
651 if (WORDACCESS_UNSAFE) LOCK (reqlock);
652 max_idle = nthreads <= 0 ? 1 : nthreads;
653 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
654}
655
656static void min_parallel (int nthreads)
657{
658 if (wanted < nthreads)
659 wanted = nthreads;
660}
661
662static void max_parallel (int nthreads)
663{
664 if (wanted > nthreads)
665 wanted = nthreads;
666
667 while (started > wanted)
668 end_thread ();
669}
670
671static void poll_wait ()
672{
673 fd_set rfd;
674
675 while (nreqs) 860 while (eio_nreqs ())
676 { 861 {
677 int size; 862 int size;
678 if (WORDACCESS_UNSAFE) LOCK (reslock); 863
864 X_LOCK (EIO_POOL->reslock);
679 size = res_queue.size; 865 size = EIO_POOL->res_queue.size;
680 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 866 X_UNLOCK (EIO_POOL->reslock);
681 867
682 if (size) 868 if (size)
683 return; 869 return;
684 870
685 maybe_start_thread (); 871 etp_maybe_start_thread (EIO_POOL);
686 872
687 FD_ZERO(&rfd); 873 s_epipe_wait (&respipe);
688 FD_SET(respipe [0], &rfd);
689
690 select (respipe [0] + 1, &rfd, 0, 0, 0);
691 } 874 }
692} 875}
693 876
694static int poll_cb () 877static int
878poll_cb (void)
695{ 879{
696 dSP;
697 int count = 0;
698 int maxreqs = max_poll_reqs;
699 int do_croak = 0;
700 struct timeval tv_start, tv_now;
701 aio_req req;
702
703 if (max_poll_time)
704 gettimeofday (&tv_start, 0);
705
706 block_sig ();
707
708 for (;;) 880 for (;;)
709 { 881 {
710 for (;;) 882 int res = eio_poll ();
883
884 if (res > 0)
885 croak (0);
886
887 if (!max_outstanding || max_outstanding > eio_nreqs ())
888 return res;
889
890 poll_wait ();
891 }
892}
893
894static void ecb_cold
895reinit (void)
896{
897 create_respipe ();
898
899 if (eio_init (want_poll, done_poll) < 0)
900 croak ("IO::AIO: unable to initialise eio library");
901}
902
903/*****************************************************************************/
904
905static SV *
906get_cb (SV *cb_sv)
907{
908 SvGETMAGIC (cb_sv);
909 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
910}
911
912static aio_req ecb_noinline
913dreq (SV *callback)
914{
915 SV *cb_cv;
916 aio_req req;
917 int req_pri = next_pri;
918 next_pri = EIO_PRI_DEFAULT;
919
920 cb_cv = get_cb (callback);
921
922 req = calloc (sizeof (*req), 1);
923 if (!req)
924 croak ("out of memory during eio_req allocation");
925
926 req->callback = SvREFCNT_inc (cb_cv);
927 req->pri = req_pri;
928
929 return req;
930}
931
932#define dREQ \
933 aio_req req = dreq (callback); \
934
935#define REQ_SEND \
936 PUTBACK; \
937 req_submit (req); \
938 SPAGAIN; \
939 \
940 if (GIMME_V != G_VOID) \
941 XPUSHs (req_sv (req, aio_req_stash));
942
943ecb_inline void
944req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
945{
946 if (expect_false (SvROK (path)))
947 {
948 SV *rv = SvRV (path);
949 SV *wdob;
950
951 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
711 { 952 {
712 maybe_start_thread (); 953 path = AvARRAY (rv)[1];
954 wdob = AvARRAY (rv)[0];
713 955
714 LOCK (reslock); 956 if (SvOK (wdob))
715 req = reqq_shift (&res_queue);
716
717 if (req)
718 { 957 {
719 --npending; 958 *wd = SvAIO_WD (wdob);
720 959 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
721 if (!res_queue.size)
722 {
723 /* read any signals sent by the worker threads */
724 char buf [4];
725 while (read (respipe [0], buf, 4) == 4)
726 ;
727 }
728 }
729
730 UNLOCK (reslock);
731
732 if (!req)
733 break;
734
735 --nreqs;
736
737 if (req->type == REQ_GROUP && req->size)
738 {
739 req->int1 = 1; /* mark request as delayed */
740 continue;
741 } 960 }
742 else 961 else
743 { 962 *wd = EIO_INVALID_WD;
744 if (!req_invoke (req))
745 {
746 req_free (req);
747 unblock_sig ();
748 croak (0);
749 }
750
751 count++;
752 }
753
754 req_free (req);
755
756 if (maxreqs && !--maxreqs)
757 break;
758
759 if (max_poll_time)
760 {
761 gettimeofday (&tv_now, 0);
762
763 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
764 break;
765 }
766 } 963 }
964 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
965 {
966 *wd = (aio_wd)(long)SvIVX (rv);
967 *wdsv = SvREFCNT_inc_NN (rv);
968 *ptr = ".";
969 return; /* path set to "." */
970 }
971 else
972 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
973 }
767 974
768 if (nreqs <= max_outstanding) 975 *pathsv = newSVsv (path);
976 *ptr = SvPVbyte_nolen (*pathsv);
977}
978
979static void ecb_noinline
980req_set_path1 (aio_req req, SV *path)
981{
982 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
983}
984
985static void ecb_noinline
986req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
987{
988 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
989
990 switch (SvTYPE (rv))
991 {
992 case SVt_PVIO:
993 case SVt_PVLV:
994 case SVt_PVGV:
995 req->type = type_fh;
996 req->sv1 = newSVsv (fh_or_path);
997 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
769 break; 998 break;
770 999
771 poll_wait (); 1000 default:
772 1001 req->type = type_path;
773 ++maxreqs; 1002 req_set_path1 (req, fh_or_path);
1003 break;
774 } 1004 }
775
776 unblock_sig ();
777 return count;
778}
779
780static void create_pipe ()
781{
782 if (pipe (respipe))
783 croak ("unable to initialize result pipe");
784
785 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
786 croak ("cannot set result pipe to nonblocking mode");
787
788 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
789 croak ("cannot set result pipe to nonblocking mode");
790} 1005}
791 1006
792/*****************************************************************************/ 1007/*****************************************************************************/
793/* work around various missing functions */
794 1008
795#if !HAVE_PREADWRITE 1009static void
796# define pread aio_pread 1010ts_set (struct timespec *ts, NV value)
797# define pwrite aio_pwrite
798
799/*
800 * make our pread/pwrite safe against themselves, but not against
801 * normal read/write by using a mutex. slows down execution a lot,
802 * but that's your problem, not mine.
803 */
804static mutex_t preadwritelock = MUTEX_INIT;
805
806static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
807{ 1011{
808 ssize_t res; 1012 ts->tv_sec = value;
809 off_t ooffset; 1013 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
810
811 LOCK (preadwritelock);
812 ooffset = lseek (fd, 0, SEEK_CUR);
813 lseek (fd, offset, SEEK_SET);
814 res = read (fd, buf, count);
815 lseek (fd, ooffset, SEEK_SET);
816 UNLOCK (preadwritelock);
817
818 return res;
819} 1014}
820 1015
821static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1016static NV
1017ts_get (const struct timespec *ts)
822{ 1018{
823 ssize_t res; 1019 return ts->tv_sec + ts->tv_nsec * 1e-9;
824 off_t ooffset;
825
826 LOCK (preadwritelock);
827 ooffset = lseek (fd, 0, SEEK_CUR);
828 lseek (fd, offset, SEEK_SET);
829 res = write (fd, buf, count);
830 lseek (fd, offset, SEEK_SET);
831 UNLOCK (preadwritelock);
832
833 return res;
834}
835#endif
836
837#if !HAVE_FDATASYNC
838# define fdatasync fsync
839#endif
840
841#if !HAVE_READAHEAD
842# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
843
844static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
845{
846 dBUF;
847
848 while (count > 0)
849 {
850 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
851
852 pread (fd, aio_buf, len, offset);
853 offset += len;
854 count -= len;
855 }
856
857 errno = 0;
858}
859
860#endif
861
862#if !HAVE_READDIR_R
863# define readdir_r aio_readdir_r
864
865static mutex_t readdirlock = MUTEX_INIT;
866
867static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
868{
869 struct dirent *e;
870 int errorno;
871
872 LOCK (readdirlock);
873
874 e = readdir (dirp);
875 errorno = errno;
876
877 if (e)
878 {
879 *res = ent;
880 strcpy (ent->d_name, e->d_name);
881 }
882 else
883 *res = 0;
884
885 UNLOCK (readdirlock);
886
887 errno = errorno;
888 return e ? 0 : -1;
889}
890#endif
891
892/* sendfile always needs emulation */
893static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
894{
895 ssize_t res;
896
897 if (!count)
898 return 0;
899
900#if HAVE_SENDFILE
901# if __linux
902 res = sendfile (ofd, ifd, &offset, count);
903
904# elif __freebsd
905 /*
906 * Of course, the freebsd sendfile is a dire hack with no thoughts
907 * wasted on making it similar to other I/O functions.
908 */
909 {
910 off_t sbytes;
911 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
912
913 if (res < 0 && sbytes)
914 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
915 res = sbytes;
916 }
917
918# elif __hpux
919 res = sendfile (ofd, ifd, offset, count, 0, 0);
920
921# elif __solaris
922 {
923 struct sendfilevec vec;
924 size_t sbytes;
925
926 vec.sfv_fd = ifd;
927 vec.sfv_flag = 0;
928 vec.sfv_off = offset;
929 vec.sfv_len = count;
930
931 res = sendfilev (ofd, &vec, 1, &sbytes);
932
933 if (res < 0 && sbytes)
934 res = sbytes;
935 }
936
937# endif
938#else
939 res = -1;
940 errno = ENOSYS;
941#endif
942
943 if (res < 0
944 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
945#if __solaris
946 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
947#endif
948 )
949 )
950 {
951 /* emulate sendfile. this is a major pain in the ass */
952 dBUF;
953
954 res = 0;
955
956 while (count)
957 {
958 ssize_t cnt;
959
960 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
961
962 if (cnt <= 0)
963 {
964 if (cnt && !res) res = -1;
965 break;
966 }
967
968 cnt = write (ofd, aio_buf, cnt);
969
970 if (cnt <= 0)
971 {
972 if (cnt && !res) res = -1;
973 break;
974 }
975
976 offset += cnt;
977 res += cnt;
978 count -= cnt;
979 }
980 }
981
982 return res;
983}
984
985/* read a full directory */
986static void scandir_ (aio_req req, worker *self)
987{
988 DIR *dirp;
989 union
990 {
991 struct dirent d;
992 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
993 } *u;
994 struct dirent *entp;
995 char *name, *names;
996 int memlen = 4096;
997 int memofs = 0;
998 int res = 0;
999 int errorno;
1000
1001 LOCK (wrklock);
1002 self->dirp = dirp = opendir (req->ptr1);
1003 self->dbuf = u = malloc (sizeof (*u));
1004 req->flags |= FLAG_PTR2_FREE;
1005 req->ptr2 = names = malloc (memlen);
1006 UNLOCK (wrklock);
1007
1008 if (dirp && u && names)
1009 for (;;)
1010 {
1011 errno = 0;
1012 readdir_r (dirp, &u->d, &entp);
1013
1014 if (!entp)
1015 break;
1016
1017 name = entp->d_name;
1018
1019 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1020 {
1021 int len = strlen (name) + 1;
1022
1023 res++;
1024
1025 while (memofs + len > memlen)
1026 {
1027 memlen *= 2;
1028 LOCK (wrklock);
1029 req->ptr2 = names = realloc (names, memlen);
1030 UNLOCK (wrklock);
1031
1032 if (!names)
1033 break;
1034 }
1035
1036 memcpy (names + memofs, name, len);
1037 memofs += len;
1038 }
1039 }
1040
1041 if (errno)
1042 res = -1;
1043
1044 req->result = res;
1045} 1020}
1046 1021
1047/*****************************************************************************/ 1022/*****************************************************************************/
1048 1023
1049static void *aio_proc (void *thr_arg) 1024XS(boot_IO__AIO) ecb_cold;
1050{
1051 aio_req req;
1052 struct timespec ts;
1053 worker *self = (worker *)thr_arg;
1054 1025
1055 /* try to distribute timeouts somewhat evenly */
1056 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1057 * (1000000000UL / 1024UL);
1058
1059 for (;;)
1060 {
1061 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1062
1063 LOCK (reqlock);
1064
1065 for (;;)
1066 {
1067 self->req = req = reqq_shift (&req_queue);
1068
1069 if (req)
1070 break;
1071
1072 ++idle;
1073
1074 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1075 == ETIMEDOUT)
1076 {
1077 if (idle > max_idle)
1078 {
1079 --idle;
1080 UNLOCK (reqlock);
1081 LOCK (wrklock);
1082 --started;
1083 UNLOCK (wrklock);
1084 goto quit;
1085 }
1086
1087 /* we are allowed to idle, so do so without any timeout */
1088 COND_WAIT (reqwait, reqlock);
1089 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1090 }
1091
1092 --idle;
1093 }
1094
1095 --nready;
1096
1097 UNLOCK (reqlock);
1098
1099 errno = 0; /* strictly unnecessary */
1100
1101 if (!(req->flags & FLAG_CANCELLED))
1102 switch (req->type)
1103 {
1104 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1105 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1106
1107 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1108 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1109
1110 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1111 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1112 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1113
1114 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1115 case REQ_CLOSE: req->result = close (req->int1); break;
1116 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1117 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1118 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124
1125 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126 case REQ_FSYNC: req->result = fsync (req->int1); break;
1127 case REQ_READDIR: scandir_ (req, self); break;
1128
1129 case REQ_BUSY:
1130 {
1131 struct timeval tv;
1132
1133 tv.tv_sec = req->int1;
1134 tv.tv_usec = req->int2;
1135
1136 req->result = select (0, 0, 0, 0, &tv);
1137 }
1138
1139 case REQ_GROUP:
1140 case REQ_NOP:
1141 break;
1142
1143 case REQ_QUIT:
1144 goto quit;
1145
1146 default:
1147 req->result = ENOSYS;
1148 break;
1149 }
1150
1151 req->errorno = errno;
1152
1153 LOCK (reslock);
1154
1155 ++npending;
1156
1157 if (!reqq_push (&res_queue, req))
1158 {
1159 /* write a dummy byte to the pipe so fh becomes ready */
1160 write (respipe [1], &respipe, 1);
1161
1162 /* optionally signal the main thread asynchronously */
1163 if (main_sig)
1164 pthread_kill (main_tid, main_sig);
1165 }
1166
1167 self->req = 0;
1168 worker_clear (self);
1169
1170 UNLOCK (reslock);
1171 }
1172
1173quit:
1174 LOCK (wrklock);
1175 worker_free (self);
1176 UNLOCK (wrklock);
1177
1178 return 0;
1179}
1180
1181/*****************************************************************************/
1182
1183static void atfork_prepare (void)
1184{
1185 LOCK (wrklock);
1186 LOCK (reqlock);
1187 LOCK (reslock);
1188#if !HAVE_PREADWRITE
1189 LOCK (preadwritelock);
1190#endif
1191#if !HAVE_READDIR_R
1192 LOCK (readdirlock);
1193#endif
1194}
1195
1196static void atfork_parent (void)
1197{
1198#if !HAVE_READDIR_R
1199 UNLOCK (readdirlock);
1200#endif
1201#if !HAVE_PREADWRITE
1202 UNLOCK (preadwritelock);
1203#endif
1204 UNLOCK (reslock);
1205 UNLOCK (reqlock);
1206 UNLOCK (wrklock);
1207}
1208
1209static void atfork_child (void)
1210{
1211 aio_req prv;
1212
1213 while (prv = reqq_shift (&req_queue))
1214 req_free (prv);
1215
1216 while (prv = reqq_shift (&res_queue))
1217 req_free (prv);
1218
1219 while (wrk_first.next != &wrk_first)
1220 {
1221 worker *wrk = wrk_first.next;
1222
1223 if (wrk->req)
1224 req_free (wrk->req);
1225
1226 worker_clear (wrk);
1227 worker_free (wrk);
1228 }
1229
1230 started = 0;
1231 idle = 0;
1232 nreqs = 0;
1233 nready = 0;
1234 npending = 0;
1235
1236 close (respipe [0]);
1237 close (respipe [1]);
1238 create_pipe ();
1239
1240 atfork_parent ();
1241}
1242
1243#define dREQ \
1244 aio_req req; \
1245 int req_pri = next_pri; \
1246 next_pri = DEFAULT_PRI + PRI_BIAS; \
1247 \
1248 if (SvOK (callback) && !SvROK (callback)) \
1249 croak ("callback must be undef or of reference type"); \
1250 \
1251 Newz (0, req, 1, aio_cb); \
1252 if (!req) \
1253 croak ("out of memory during aio_req allocation"); \
1254 \
1255 req->callback = newSVsv (callback); \
1256 req->pri = req_pri
1257
1258#define REQ_SEND \
1259 req_send (req); \
1260 \
1261 if (GIMME_V != G_VOID) \
1262 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1263
1264MODULE = IO::AIO PACKAGE = IO::AIO 1026MODULE = IO::AIO PACKAGE = IO::AIO
1265 1027
1266PROTOTYPES: ENABLE 1028PROTOTYPES: ENABLE
1267 1029
1268BOOT: 1030BOOT:
1269{ 1031{
1032 static const struct {
1033 const char *name;
1034 IV iv;
1035 } *civ, const_iv[] = {
1036# define const_niv(name, value) { # name, (IV) value },
1037# define const_iv(name) { # name, (IV) name },
1038# define const_eio(name) { # name, (IV) EIO_ ## name },
1039
1040 /* you have to re-run ./gendef0 after adding/removing any constants here */
1041 /* the first block can be undef if missing */
1042 const_iv (ENOSYS)
1043 const_iv (EXDEV)
1044 const_iv (EBADR)
1045
1046 /* for lseek */
1047 const_iv (SEEK_DATA)
1048 const_iv (SEEK_HOLE)
1049
1050 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1051 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1052 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1053 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1054 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1055 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1056
1057 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1058 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1059 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1060 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1061 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1062
1063 /* the second block will be 0 when missing */
1064 const_iv (O_ACCMODE)
1065
1066 const_iv (O_RDONLY)
1067 const_iv (O_WRONLY)
1068 const_iv (O_RDWR)
1069 const_iv (O_CREAT)
1070 const_iv (O_TRUNC)
1071 const_iv (O_EXCL)
1072 const_iv (O_APPEND)
1073
1074 const_iv (O_ASYNC)
1075 const_iv (O_DIRECT)
1076 const_iv (O_NOATIME)
1077
1078 const_iv (O_CLOEXEC)
1079 const_iv (O_NOCTTY)
1080 const_iv (O_NOFOLLOW)
1081 const_iv (O_NONBLOCK)
1082 const_iv (O_EXEC)
1083 const_iv (O_SEARCH)
1084 const_iv (O_DIRECTORY)
1085 const_iv (O_DSYNC)
1086 const_iv (O_RSYNC)
1087 const_iv (O_SYNC)
1088 const_iv (O_PATH)
1089 const_iv (O_TMPFILE)
1090 const_iv (O_TTY_INIT)
1091
1092 const_iv (S_IFIFO)
1093 const_iv (S_IFCHR)
1094 const_iv (S_IFBLK)
1095 const_iv (S_IFLNK)
1096 const_iv (S_IFREG)
1097 const_iv (S_IFDIR)
1098 const_iv (S_IFWHT)
1099 const_iv (S_IFSOCK)
1100 const_iv (S_IFMT)
1101
1102 const_iv (ST_RDONLY)
1103 const_iv (ST_NOSUID)
1104 const_iv (ST_NODEV)
1105 const_iv (ST_NOEXEC)
1106 const_iv (ST_SYNCHRONOUS)
1107 const_iv (ST_MANDLOCK)
1108 const_iv (ST_WRITE)
1109 const_iv (ST_APPEND)
1110 const_iv (ST_IMMUTABLE)
1111 const_iv (ST_NOATIME)
1112 const_iv (ST_NODIRATIME)
1113 const_iv (ST_RELATIME)
1114
1115 const_iv (PROT_NONE)
1116 const_iv (PROT_EXEC)
1117 const_iv (PROT_READ)
1118 const_iv (PROT_WRITE)
1119
1120 const_iv (MAP_PRIVATE)
1121 const_iv (MAP_SHARED)
1122 const_iv (MAP_FIXED)
1123 const_iv (MAP_ANONYMOUS)
1124
1125 /* linuxish */
1126 const_iv (MAP_LOCKED)
1127 const_iv (MAP_NORESERVE)
1128 const_iv (MAP_POPULATE)
1129 const_iv (MAP_NONBLOCK)
1130 const_iv (MAP_GROWSDOWN)
1131 const_iv (MAP_32BIT)
1132 const_iv (MAP_HUGETLB)
1133 const_iv (MAP_STACK)
1134
1135 const_iv (MREMAP_MAYMOVE)
1136 const_iv (MREMAP_FIXED)
1137
1138 const_iv (F_DUPFD_CLOEXEC)
1139
1140 const_iv (MSG_CMSG_CLOEXEC)
1141 const_iv (SOCK_CLOEXEC)
1142
1143 const_iv (F_OFD_GETLK)
1144 const_iv (F_OFD_SETLK)
1145 const_iv (F_OFD_GETLKW)
1146
1147 const_iv (FIFREEZE)
1148 const_iv (FITHAW)
1149 const_iv (FITRIM)
1150 const_iv (FICLONE)
1151 const_iv (FICLONERANGE)
1152 const_iv (FIDEDUPERANGE)
1153
1154 const_iv (FS_IOC_GETFLAGS)
1155 const_iv (FS_IOC_SETFLAGS)
1156 const_iv (FS_IOC_GETVERSION)
1157 const_iv (FS_IOC_SETVERSION)
1158 const_iv (FS_IOC_FIEMAP)
1159 const_iv (FS_IOC_FSGETXATTR)
1160 const_iv (FS_IOC_FSSETXATTR)
1161 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1162 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1163 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1164
1165 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1166
1167 const_iv (FS_SECRM_FL)
1168 const_iv (FS_UNRM_FL)
1169 const_iv (FS_COMPR_FL)
1170 const_iv (FS_SYNC_FL)
1171 const_iv (FS_IMMUTABLE_FL)
1172 const_iv (FS_APPEND_FL)
1173 const_iv (FS_NODUMP_FL)
1174 const_iv (FS_NOATIME_FL)
1175 const_iv (FS_DIRTY_FL)
1176 const_iv (FS_COMPRBLK_FL)
1177 const_iv (FS_NOCOMP_FL)
1178 const_iv (FS_ENCRYPT_FL)
1179 const_iv (FS_BTREE_FL)
1180 const_iv (FS_INDEX_FL)
1181 const_iv (FS_JOURNAL_DATA_FL)
1182 const_iv (FS_NOTAIL_FL)
1183 const_iv (FS_DIRSYNC_FL)
1184 const_iv (FS_TOPDIR_FL)
1185 const_iv (FS_FL_USER_MODIFIABLE)
1186
1187 const_iv (FS_XFLAG_REALTIME)
1188 const_iv (FS_XFLAG_PREALLOC)
1189 const_iv (FS_XFLAG_IMMUTABLE)
1190 const_iv (FS_XFLAG_APPEND)
1191 const_iv (FS_XFLAG_SYNC)
1192 const_iv (FS_XFLAG_NOATIME)
1193 const_iv (FS_XFLAG_NODUMP)
1194 const_iv (FS_XFLAG_RTINHERIT)
1195 const_iv (FS_XFLAG_PROJINHERIT)
1196 const_iv (FS_XFLAG_NOSYMLINKS)
1197 const_iv (FS_XFLAG_EXTSIZE)
1198 const_iv (FS_XFLAG_EXTSZINHERIT)
1199 const_iv (FS_XFLAG_NODEFRAG)
1200 const_iv (FS_XFLAG_FILESTREAM)
1201 const_iv (FS_XFLAG_DAX)
1202 const_iv (FS_XFLAG_HASATTR)
1203
1204 const_iv (FIEMAP_FLAG_SYNC)
1205 const_iv (FIEMAP_FLAG_XATTR)
1206 const_iv (FIEMAP_FLAGS_COMPAT)
1207 const_iv (FIEMAP_EXTENT_LAST)
1208 const_iv (FIEMAP_EXTENT_UNKNOWN)
1209 const_iv (FIEMAP_EXTENT_DELALLOC)
1210 const_iv (FIEMAP_EXTENT_ENCODED)
1211 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1212 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1213 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1214 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1215 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1216 const_iv (FIEMAP_EXTENT_MERGED)
1217 const_iv (FIEMAP_EXTENT_SHARED)
1218
1219 const_iv (SPLICE_F_MOVE)
1220 const_iv (SPLICE_F_NONBLOCK)
1221 const_iv (SPLICE_F_MORE)
1222 const_iv (SPLICE_F_GIFT)
1223
1224 const_iv (EFD_CLOEXEC)
1225 const_iv (EFD_NONBLOCK)
1226 const_iv (EFD_SEMAPHORE)
1227
1228 const_iv (CLOCK_REALTIME)
1229 const_iv (CLOCK_MONOTONIC)
1230 const_iv (CLOCK_BOOTTIME)
1231 const_iv (CLOCK_REALTIME_ALARM)
1232 const_iv (CLOCK_BOOTTIME_ALARM)
1233
1234 const_iv (TFD_NONBLOCK)
1235 const_iv (TFD_CLOEXEC)
1236
1237 const_iv (TFD_TIMER_ABSTIME)
1238 const_iv (TFD_TIMER_CANCEL_ON_SET)
1239
1240 /* these are libeio constants, and are independent of gendef0 */
1241 const_eio (SEEK_SET)
1242 const_eio (SEEK_CUR)
1243 const_eio (SEEK_END)
1244
1245 const_eio (MCL_FUTURE)
1246 const_eio (MCL_CURRENT)
1247
1248 const_eio (MS_ASYNC)
1249 const_eio (MS_INVALIDATE)
1250 const_eio (MS_SYNC)
1251
1252 const_eio (MT_MODIFY)
1253
1254 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1255 const_eio (SYNC_FILE_RANGE_WRITE)
1256 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1257
1258 const_eio (FALLOC_FL_KEEP_SIZE)
1259 const_eio (FALLOC_FL_PUNCH_HOLE)
1260 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1261 const_eio (FALLOC_FL_ZERO_RANGE)
1262 const_eio (FALLOC_FL_INSERT_RANGE)
1263 const_eio (FALLOC_FL_UNSHARE_RANGE)
1264
1265 const_eio (RENAME_NOREPLACE)
1266 const_eio (RENAME_EXCHANGE)
1267 const_eio (RENAME_WHITEOUT)
1268
1269 const_eio (READDIR_DENTS)
1270 const_eio (READDIR_DIRS_FIRST)
1271 const_eio (READDIR_STAT_ORDER)
1272 const_eio (READDIR_FOUND_UNKNOWN)
1273
1274 const_eio (DT_UNKNOWN)
1275 const_eio (DT_FIFO)
1276 const_eio (DT_CHR)
1277 const_eio (DT_DIR)
1278 const_eio (DT_BLK)
1279 const_eio (DT_REG)
1280 const_eio (DT_LNK)
1281 const_eio (DT_SOCK)
1282 const_eio (DT_WHT)
1283 };
1284
1270 HV *stash = gv_stashpv ("IO::AIO", 1); 1285 aio_stash = gv_stashpv ("IO::AIO" , 1);
1286 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1287 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1288 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1271 1289
1272 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1290 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1273 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1291 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1274 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1275 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1276 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1277 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1278 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1279 1292
1280 create_pipe (); 1293 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1281 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1282}
1283 1294
1295 reinit ();
1296}
1297
1284void 1298void
1299reinit ()
1300 PROTOTYPE:
1301
1302void
1285max_poll_reqs (int nreqs) 1303max_poll_reqs (unsigned int nreqs)
1286 PROTOTYPE: $ 1304 PROTOTYPE: $
1287 CODE: 1305 CODE:
1288 max_poll_reqs = nreqs; 1306 eio_set_max_poll_reqs (nreqs);
1289 1307
1290void 1308void
1291max_poll_time (double nseconds) 1309max_poll_time (double nseconds)
1292 PROTOTYPE: $ 1310 PROTOTYPE: $
1293 CODE: 1311 CODE:
1294 max_poll_time = nseconds * AIO_TICKS; 1312 eio_set_max_poll_time (nseconds);
1295 1313
1296void 1314void
1297min_parallel (int nthreads) 1315min_parallel (unsigned int nthreads)
1298 PROTOTYPE: $
1299
1300void
1301max_parallel (int nthreads)
1302 PROTOTYPE: $
1303
1304void
1305max_idle (int nthreads)
1306 PROTOTYPE: $ 1316 PROTOTYPE: $
1307 CODE: 1317 CODE:
1308 set_max_idle (nthreads); 1318 eio_set_min_parallel (nthreads);
1309 1319
1310int 1320void
1311max_outstanding (int maxreqs) 1321max_parallel (unsigned int nthreads)
1312 PROTOTYPE: $ 1322 PROTOTYPE: $
1313 CODE: 1323 CODE:
1314 RETVAL = max_outstanding; 1324 eio_set_max_parallel (nthreads);
1325
1326void
1327max_idle (unsigned int nthreads)
1328 PROTOTYPE: $
1329 CODE:
1330 eio_set_max_idle (nthreads);
1331
1332void
1333idle_timeout (unsigned int seconds)
1334 PROTOTYPE: $
1335 CODE:
1336 eio_set_idle_timeout (seconds);
1337
1338void
1339max_outstanding (unsigned int maxreqs)
1340 PROTOTYPE: $
1341 CODE:
1315 max_outstanding = maxreqs; 1342 max_outstanding = maxreqs;
1316 OUTPUT:
1317 RETVAL
1318 1343
1319void 1344void
1320aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1345aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1321 SV8 * pathname
1322 int flags
1323 int mode
1324 SV * callback
1325 PROTOTYPE: $$$;$
1326 PPCODE: 1346 PPCODE:
1327{ 1347{
1328 dREQ; 1348 dREQ;
1329 1349
1350 req->type = EIO_WD_OPEN;
1351 req_set_path1 (req, pathname);
1352
1353 REQ_SEND;
1354}
1355
1356void
1357aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1358 PPCODE:
1359{
1360 dREQ;
1361
1330 req->type = REQ_OPEN; 1362 req->type = EIO_OPEN;
1331 req->sv1 = newSVsv (pathname); 1363 req_set_path1 (req, pathname);
1332 req->ptr1 = SvPVbyte_nolen (req->sv1);
1333 req->int1 = flags; 1364 req->int1 = flags;
1334 req->mode = mode; 1365 req->int2 = mode;
1335 1366
1336 REQ_SEND; 1367 REQ_SEND;
1337} 1368}
1338 1369
1339void 1370void
1340aio_close (fh,callback=&PL_sv_undef) 1371aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1341 SV * fh
1342 SV * callback
1343 PROTOTYPE: $;$
1344 ALIAS: 1372 ALIAS:
1345 aio_close = REQ_CLOSE
1346 aio_fsync = REQ_FSYNC 1373 aio_fsync = EIO_FSYNC
1347 aio_fdatasync = REQ_FDATASYNC 1374 aio_fdatasync = EIO_FDATASYNC
1375 aio_syncfs = EIO_SYNCFS
1348 PPCODE: 1376 PPCODE:
1349{ 1377{
1378 int fd = s_fileno_croak (fh, 0);
1350 dREQ; 1379 dREQ;
1351 1380
1352 req->type = ix; 1381 req->type = ix;
1353 req->fh = newSVsv (fh); 1382 req->sv1 = newSVsv (fh);
1354 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1383 req->int1 = fd;
1355 1384
1356 REQ_SEND (req); 1385 REQ_SEND;
1357} 1386}
1358 1387
1359void 1388void
1389aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1390 PPCODE:
1391{
1392 int fd = s_fileno_croak (fh, 0);
1393 dREQ;
1394
1395 req->type = EIO_SYNC_FILE_RANGE;
1396 req->sv1 = newSVsv (fh);
1397 req->int1 = fd;
1398 req->offs = offset;
1399 req->size = nbytes;
1400 req->int2 = flags;
1401
1402 REQ_SEND;
1403}
1404
1405void
1406aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1407 PPCODE:
1408{
1409 int fd = s_fileno_croak (fh, 0);
1410 dREQ;
1411
1412 req->type = EIO_FALLOCATE;
1413 req->sv1 = newSVsv (fh);
1414 req->int1 = fd;
1415 req->int2 = mode;
1416 req->offs = offset;
1417 req->size = len;
1418
1419 REQ_SEND;
1420}
1421
1422void
1423aio_close (SV *fh, SV *callback = &PL_sv_undef)
1424 PPCODE:
1425{
1426 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1427 int fd = s_fileno_croak (fh, 0);
1428 dREQ;
1429
1430 if (expect_false (close_fd < 0))
1431 {
1432 int pipefd [2];
1433
1434 if (
1435#ifdef _WIN32
1436 _pipe (pipefd, 1, _O_BINARY) < 0
1437#else
1438 pipe (pipefd) < 0
1439 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1440#endif
1441 || close (pipefd [1]) < 0
1442 )
1443 abort (); /*D*/
1444
1445 close_fd = pipefd [0];
1446 }
1447
1448 req->type = EIO_DUP2;
1449 req->int1 = close_fd;
1450 req->sv2 = newSVsv (fh);
1451 req->int2 = fd;
1452
1453 REQ_SEND;
1454}
1455
1456void
1457aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1458 PPCODE:
1459{
1460 int fd = s_fileno_croak (fh, 0);
1461 dREQ;
1462
1463 req->type = EIO_SEEK;
1464 req->sv1 = newSVsv (fh);
1465 req->int1 = fd;
1466 req->offs = SvVAL64 (offset);
1467 req->int2 = whence;
1468
1469 REQ_SEND;
1470}
1471
1472void
1360aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1473aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1361 SV * fh
1362 UV offset
1363 UV length
1364 SV8 * data
1365 UV dataoffset
1366 SV * callback
1367 ALIAS: 1474 ALIAS:
1368 aio_read = REQ_READ 1475 aio_read = EIO_READ
1369 aio_write = REQ_WRITE 1476 aio_write = EIO_WRITE
1370 PROTOTYPE: $$$$$;$
1371 PPCODE: 1477 PPCODE:
1372{ 1478{
1373 STRLEN svlen; 1479 STRLEN svlen;
1480 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1374 char *svptr = SvPVbyte (data, svlen); 1481 char *svptr = SvPVbyte (data, svlen);
1375 1482 UV len = SvUV (length);
1376 SvUPGRADE (data, SVt_PV);
1377 SvPOK_on (data);
1378 1483
1379 if (dataoffset < 0) 1484 if (dataoffset < 0)
1380 dataoffset += svlen; 1485 dataoffset += svlen;
1381 1486
1382 if (dataoffset < 0 || dataoffset > svlen) 1487 if (dataoffset < 0 || dataoffset > svlen)
1383 croak ("data offset outside of string"); 1488 croak ("dataoffset outside of data scalar");
1384 1489
1385 if (ix == REQ_WRITE) 1490 if (ix == EIO_WRITE)
1386 { 1491 {
1387 /* write: check length and adjust. */ 1492 /* write: check length and adjust. */
1388 if (length < 0 || length + dataoffset > svlen) 1493 if (!SvOK (length) || len + dataoffset > svlen)
1389 length = svlen - dataoffset; 1494 len = svlen - dataoffset;
1390 } 1495 }
1391 else 1496 else
1392 { 1497 {
1393 /* read: grow scalar as necessary */ 1498 /* read: check type and grow scalar as necessary */
1499 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1394 svptr = SvGROW (data, length + dataoffset + 1); 1500 svptr = sv_grow (data, len + dataoffset + 1);
1501 else if (SvCUR (data) < len + dataoffset)
1502 croak ("length + dataoffset outside of scalar, and cannot grow");
1395 } 1503 }
1396
1397 if (length < 0)
1398 croak ("length must not be negative");
1399 1504
1400 { 1505 {
1401 dREQ; 1506 dREQ;
1402 1507
1403 req->type = ix; 1508 req->type = ix;
1404 req->fh = newSVsv (fh); 1509 req->sv1 = newSVsv (fh);
1405 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1510 req->int1 = fd;
1406 : IoOFP (sv_2io (fh))); 1511 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1407 req->offs = offset;
1408 req->size = length; 1512 req->size = len;
1409 req->sv1 = SvREFCNT_inc (data); 1513 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr1 = (char *)svptr + dataoffset; 1514 req->ptr2 = (char *)svptr + dataoffset;
1411 req->stroffset = dataoffset; 1515 req->stroffset = dataoffset;
1412 1516
1413 if (!SvREADONLY (data)) 1517 if (!SvREADONLY (data))
1414 { 1518 {
1415 SvREADONLY_on (data); 1519 SvREADONLY_on (data);
1416 req->flags |= FLAG_SV1_RO_OFF; 1520 req->flags |= FLAG_SV2_RO_OFF;
1417 } 1521 }
1418 1522
1419 REQ_SEND; 1523 REQ_SEND;
1420 } 1524 }
1421} 1525}
1422 1526
1423void 1527void
1424aio_readlink (path,callback=&PL_sv_undef) 1528aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1425 SV8 * path 1529 ALIAS:
1426 SV * callback 1530 aio_ioctl = EIO_IOCTL
1427 PROTOTYPE: $$;$ 1531 aio_fcntl = EIO_FCNTL
1428 PPCODE: 1532 PPCODE:
1429{ 1533{
1430 SV *data; 1534 int fd = s_fileno_croak (fh, 0);
1535 char *svptr;
1536
1537 if (SvPOK (arg) || !SvNIOK (arg))
1538 {
1539 STRLEN svlen;
1540 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1541#ifdef IOCPARM_LEN
1542 STRLEN need = IOCPARM_LEN (request);
1543#else
1544 STRLEN need = 256;
1545#endif
1546
1547 if (svlen < need)
1548 svptr = SvGROW (arg, need);
1549 }
1550 else
1551 svptr = (char *)SvIV (arg);
1552
1553 {
1554 dREQ;
1555
1556 req->type = ix;
1557 req->sv1 = newSVsv (fh);
1558 req->int1 = fd;
1559 req->int2 = (long)request;
1560 req->sv2 = SvREFCNT_inc (arg);
1561 req->ptr2 = svptr;
1562
1563 REQ_SEND;
1564 }
1565}
1566
1567void
1568aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1569 ALIAS:
1570 aio_readlink = EIO_READLINK
1571 aio_realpath = EIO_REALPATH
1572 PPCODE:
1573{
1431 dREQ; 1574 dREQ;
1432 1575
1433 data = newSV (NAME_MAX);
1434 SvPOK_on (data);
1435
1436 req->type = REQ_READLINK; 1576 req->type = ix;
1437 req->fh = newSVsv (path); 1577 req_set_path1 (req, pathname);
1438 req->ptr2 = SvPVbyte_nolen (req->fh);
1439 req->sv1 = data;
1440 req->ptr1 = SvPVbyte_nolen (data);
1441 1578
1442 REQ_SEND; 1579 REQ_SEND;
1443} 1580}
1444 1581
1445void 1582void
1446aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1583aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1447 SV * out_fh
1448 SV * in_fh
1449 UV in_offset
1450 UV length
1451 SV * callback
1452 PROTOTYPE: $$$$;$
1453 PPCODE: 1584 PPCODE:
1454{ 1585{
1586 int ifd = s_fileno_croak (in_fh , 0);
1587 int ofd = s_fileno_croak (out_fh, 1);
1455 dREQ; 1588 dREQ;
1456 1589
1457 req->type = REQ_SENDFILE; 1590 req->type = EIO_SENDFILE;
1458 req->fh = newSVsv (out_fh); 1591 req->sv1 = newSVsv (out_fh);
1459 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1592 req->int1 = ofd;
1460 req->sv2 = newSVsv (in_fh); 1593 req->sv2 = newSVsv (in_fh);
1461 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1594 req->int2 = ifd;
1462 req->offs = in_offset; 1595 req->offs = in_offset;
1463 req->size = length; 1596 req->size = length;
1464 1597
1465 REQ_SEND; 1598 REQ_SEND;
1466} 1599}
1467 1600
1468void 1601void
1469aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1602aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1470 SV * fh
1471 UV offset
1472 IV length
1473 SV * callback
1474 PROTOTYPE: $$$;$
1475 PPCODE: 1603 PPCODE:
1476{ 1604{
1605 int fd = s_fileno_croak (fh, 0);
1477 dREQ; 1606 dREQ;
1478 1607
1479 req->type = REQ_READAHEAD; 1608 req->type = EIO_READAHEAD;
1480 req->fh = newSVsv (fh); 1609 req->sv1 = newSVsv (fh);
1481 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1610 req->int1 = fd;
1482 req->offs = offset; 1611 req->offs = offset;
1483 req->size = length; 1612 req->size = length;
1484 1613
1485 REQ_SEND; 1614 REQ_SEND;
1486} 1615}
1487 1616
1488void 1617void
1489aio_stat (fh_or_path,callback=&PL_sv_undef) 1618aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1490 SV8 * fh_or_path
1491 SV * callback
1492 ALIAS: 1619 ALIAS:
1493 aio_stat = REQ_STAT 1620 aio_stat = EIO_STAT
1494 aio_lstat = REQ_LSTAT 1621 aio_lstat = EIO_LSTAT
1622 aio_statvfs = EIO_STATVFS
1495 PPCODE: 1623 PPCODE:
1496{ 1624{
1497 dREQ; 1625 dREQ;
1498 1626
1499 req->ptr2 = malloc (sizeof (Stat_t)); 1627 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1500 if (!req->ptr2)
1501 {
1502 req_free (req);
1503 croak ("out of memory during aio_stat statdata allocation");
1504 }
1505
1506 req->flags |= FLAG_PTR2_FREE;
1507
1508 if (SvPOK (fh_or_path))
1509 {
1510 req->type = ix;
1511 req->sv1 = newSVsv (fh_or_path);
1512 req->ptr1 = SvPVbyte_nolen (req->sv1);
1513 }
1514 else
1515 {
1516 req->type = REQ_FSTAT;
1517 req->fh = newSVsv (fh_or_path);
1518 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1519 }
1520 1628
1521 REQ_SEND; 1629 REQ_SEND;
1522} 1630}
1523 1631
1524void 1632void
1633st_xtime ()
1634 ALIAS:
1635 st_atime = 1
1636 st_mtime = 2
1637 st_ctime = 4
1638 st_xtime = 7
1639 PPCODE:
1640 EXTEND (SP, 3);
1641 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1642 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1643 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1644
1645void
1646st_xtimensec ()
1647 ALIAS:
1648 st_atimensec = 1
1649 st_mtimensec = 2
1650 st_ctimensec = 4
1651 st_xtimensec = 7
1652 PPCODE:
1653 EXTEND (SP, 3);
1654 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1655 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1656 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1657
1658UV
1659major (UV dev)
1660 ALIAS:
1661 minor = 1
1662 CODE:
1663 RETVAL = ix ? minor (dev) : major (dev);
1664 OUTPUT:
1665 RETVAL
1666
1667UV
1668makedev (UV maj, UV min)
1669 CODE:
1670 RETVAL = makedev (maj, min);
1671 OUTPUT:
1672 RETVAL
1673
1674void
1675aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1676 PPCODE:
1677{
1678 dREQ;
1679
1680 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1681 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1682 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1683
1684 REQ_SEND;
1685}
1686
1687void
1688aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1689 PPCODE:
1690{
1691 dREQ;
1692
1693 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1694 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1695
1696 REQ_SEND;
1697}
1698
1699void
1700aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1701 PPCODE:
1702{
1703 dREQ;
1704
1705 req->int2 = mode;
1706 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1707
1708 REQ_SEND;
1709}
1710
1711void
1712aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1713 PPCODE:
1714{
1715 dREQ;
1716
1717 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1718 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1719 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1720
1721 REQ_SEND;
1722}
1723
1724void
1725aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1726 PPCODE:
1727{
1728 dREQ;
1729
1730 req->type = EIO_READDIR;
1731 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1732
1733 if (flags & EIO_READDIR_DENTS)
1734 req->int1 |= EIO_READDIR_CUSTOM2;
1735
1736 req_set_path1 (req, pathname);
1737
1738 REQ_SEND;
1739}
1740
1741void
1742aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1743 PPCODE:
1744{
1745 dREQ;
1746
1747 req->type = EIO_MKDIR;
1748 req->int2 = mode;
1749 req_set_path1 (req, pathname);
1750
1751 REQ_SEND;
1752}
1753
1754void
1525aio_unlink (pathname,callback=&PL_sv_undef) 1755aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1526 SV8 * pathname
1527 SV * callback
1528 ALIAS: 1756 ALIAS:
1529 aio_unlink = REQ_UNLINK 1757 aio_unlink = EIO_UNLINK
1530 aio_rmdir = REQ_RMDIR 1758 aio_rmdir = EIO_RMDIR
1531 aio_readdir = REQ_READDIR 1759 aio_readdir = EIO_READDIR
1532 PPCODE: 1760 PPCODE:
1533{ 1761{
1534 dREQ; 1762 dREQ;
1535 1763
1536 req->type = ix; 1764 req->type = ix;
1537 req->sv1 = newSVsv (pathname); 1765 req_set_path1 (req, pathname);
1538 req->ptr1 = SvPVbyte_nolen (req->sv1);
1539 1766
1540 REQ_SEND; 1767 REQ_SEND;
1541} 1768}
1542 1769
1543void 1770void
1544aio_mkdir (pathname,mode,callback=&PL_sv_undef)
1545 SV8 * pathname
1546 UV mode
1547 SV * callback
1548 PPCODE:
1549{
1550 dREQ;
1551
1552 req->type = REQ_MKDIR;
1553 req->sv1 = newSVsv (pathname);
1554 req->ptr1 = SvPVbyte_nolen (req->sv1);
1555 req->mode = mode;
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_link (oldpath,newpath,callback=&PL_sv_undef) 1771aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1562 SV8 * oldpath
1563 SV8 * newpath
1564 SV * callback
1565 ALIAS: 1772 ALIAS:
1566 aio_link = REQ_LINK 1773 aio_link = EIO_LINK
1567 aio_symlink = REQ_SYMLINK 1774 aio_symlink = EIO_SYMLINK
1568 aio_rename = REQ_RENAME 1775 aio_rename = EIO_RENAME
1569 PPCODE: 1776 PPCODE:
1570{ 1777{
1778 eio_wd wd2 = 0;
1571 dREQ; 1779 dREQ;
1572 1780
1573 req->type = ix; 1781 req->type = ix;
1574 req->fh = newSVsv (oldpath); 1782 req_set_path1 (req, oldpath);
1575 req->ptr2 = SvPVbyte_nolen (req->fh); 1783 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1576 req->sv1 = newSVsv (newpath); 1784 req->int3 = (long)wd2;
1577 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 1785
1579 REQ_SEND; 1786 REQ_SEND;
1580} 1787}
1581 1788
1582void 1789void
1583aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1790aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1584 SV8 * pathname
1585 UV mode
1586 UV dev
1587 SV * callback
1588 PPCODE: 1791 PPCODE:
1589{ 1792{
1793 eio_wd wd2 = 0;
1590 dREQ; 1794 dREQ;
1591 1795
1592 req->type = REQ_MKNOD; 1796 req->type = EIO_RENAME;
1593 req->sv1 = newSVsv (pathname); 1797 req_set_path1 (req, oldpath);
1594 req->ptr1 = SvPVbyte_nolen (req->sv1); 1798 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1595 req->mode = (mode_t)mode; 1799 req->int2 = flags;
1596 req->offs = dev; 1800 req->int3 = (long)wd2;
1597 1801
1598 REQ_SEND; 1802 REQ_SEND;
1599} 1803}
1600 1804
1601void 1805void
1602aio_busy (delay,callback=&PL_sv_undef) 1806aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1603 double delay
1604 SV * callback
1605 PPCODE: 1807 PPCODE:
1606{ 1808{
1607 dREQ; 1809 dREQ;
1608 1810
1609 req->type = REQ_BUSY; 1811 req->type = EIO_MKNOD;
1610 req->int1 = delay < 0. ? 0 : delay; 1812 req->int2 = (mode_t)mode;
1611 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1813 req->offs = dev;
1612 1814 req_set_path1 (req, pathname);
1815
1613 REQ_SEND; 1816 REQ_SEND;
1614} 1817}
1615 1818
1616void 1819void
1617aio_group (callback=&PL_sv_undef) 1820aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1618 SV * callback 1821 ALIAS:
1619 PROTOTYPE: ;$ 1822 aio_mtouch = EIO_MTOUCH
1823 aio_msync = EIO_MSYNC
1620 PPCODE: 1824 PPCODE:
1621{ 1825{
1826 STRLEN svlen;
1827 char *svptr = SvPVbyte (data, svlen);
1828 UV len = SvUV (length);
1829
1830 if (flags < 0)
1831 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1832
1833 if (offset < 0)
1834 offset += svlen;
1835
1836 if (offset < 0 || offset > svlen)
1837 croak ("offset outside of scalar");
1838
1839 if (!SvOK (length) || len + offset > svlen)
1840 len = svlen - offset;
1841
1842 {
1843 dREQ;
1844
1845 req->type = ix;
1846 req->sv2 = SvREFCNT_inc (data);
1847 req->ptr2 = (char *)svptr + offset;
1848 req->size = len;
1849 req->int1 = flags;
1850
1851 REQ_SEND;
1852 }
1853}
1854
1855void
1856aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1857 PPCODE:
1858{
1859 STRLEN svlen;
1860 char *svptr = SvPVbyte (data, svlen);
1861 UV len = SvUV (length);
1862
1863 if (offset < 0)
1864 offset += svlen;
1865
1866 if (offset < 0 || offset > svlen)
1867 croak ("offset outside of scalar");
1868
1869 if (!SvOK (length) || len + offset > svlen)
1870 len = svlen - offset;
1871
1872 {
1873 dREQ;
1874
1875 req->type = EIO_MLOCK;
1876 req->sv2 = SvREFCNT_inc (data);
1877 req->ptr2 = (char *)svptr + offset;
1878 req->size = len;
1879
1880 REQ_SEND;
1881 }
1882}
1883
1884void
1885aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1886 PPCODE:
1887{
1888 dREQ;
1889
1890 req->type = EIO_MLOCKALL;
1891 req->int1 = flags;
1892
1893 REQ_SEND;
1894}
1895
1896void
1897aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1898 PPCODE:
1899{
1900 int fd = s_fileno_croak (fh, 0);
1622 dREQ; 1901 dREQ;
1623 1902
1624 req->type = REQ_GROUP; 1903 req->type = EIO_CUSTOM;
1904 req->sv1 = newSVsv (fh);
1905 req->int1 = fd;
1625 1906
1626 req_send (req); 1907 req->feed = fiemap;
1627 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1908#if HAVE_FIEMAP
1628} 1909 /* keep our fingers crossed that the next two types are 64 bit */
1910 req->offs = start;
1911 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1912 req->int2 = flags;
1913 req->int3 = SvOK (count) ? SvIV (count) : -1;
1914#endif
1629 1915
1916 REQ_SEND;
1917}
1918
1630void 1919void
1631aio_nop (callback=&PL_sv_undef) 1920aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1632 SV * callback 1921 PPCODE:
1922{
1923 char *svptr = 0;
1924
1925 sv_clear_foreign (data);
1926
1927 if (length) /* known length, directly read into scalar */
1928 {
1929 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1930 svptr = sv_grow (data, length + 1);
1931 else if (SvCUR (data) < length)
1932 croak ("length outside of scalar, and cannot grow");
1933 else
1934 svptr = SvPVbyte_nolen (data);
1935 }
1936
1937 {
1938 dREQ;
1939
1940 req->type = EIO_SLURP;
1941 req_set_path1 (req, pathname);
1942 req->offs = offset;
1943 req->size = length;
1944 req->sv2 = SvREFCNT_inc (data);
1945 req->ptr2 = svptr;
1946
1947 if (!SvREADONLY (data))
1948 {
1949 SvREADONLY_on (data);
1950 req->flags |= FLAG_SV2_RO_OFF;
1951 }
1952
1953 REQ_SEND;
1954 }
1955}
1956
1957void
1958aio_busy (double delay, SV *callback = &PL_sv_undef)
1633 PPCODE: 1959 PPCODE:
1634{ 1960{
1635 dREQ; 1961 dREQ;
1636 1962
1637 req->type = REQ_NOP; 1963 req->type = EIO_BUSY;
1964 req->nv1 = delay < 0. ? 0. : delay;
1638 1965
1639 REQ_SEND; 1966 REQ_SEND;
1640} 1967}
1641 1968
1969void
1970aio_group (SV *callback = &PL_sv_undef)
1971 PPCODE:
1972{
1973 dREQ;
1974
1975 req->type = EIO_GROUP;
1976
1977 PUTBACK;
1978 req_submit (req);
1979 SPAGAIN;
1980
1981 XPUSHs (req_sv (req, aio_grp_stash));
1982}
1983
1984void
1985aio_nop (SV *callback = &PL_sv_undef)
1986 ALIAS:
1987 aio_nop = EIO_NOP
1988 aio_sync = EIO_SYNC
1989 PPCODE:
1990{
1991 dREQ;
1992
1993 req->type = ix;
1994
1995 REQ_SEND;
1996}
1997
1642int 1998int
1643aioreq_pri (int pri = 0) 1999aioreq_pri (int pri = NO_INIT)
1644 PROTOTYPE: ;$
1645 CODE: 2000 CODE:
1646 RETVAL = next_pri - PRI_BIAS; 2001 RETVAL = next_pri;
1647 if (items > 0) 2002 if (items > 0)
1648 { 2003 {
1649 if (pri < PRI_MIN) pri = PRI_MIN; 2004 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1650 if (pri > PRI_MAX) pri = PRI_MAX; 2005 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1651 next_pri = pri + PRI_BIAS; 2006 next_pri = pri;
1652 } 2007 }
1653 OUTPUT: 2008 OUTPUT:
1654 RETVAL 2009 RETVAL
1655 2010
1656void 2011void
1657aioreq_nice (int nice = 0) 2012aioreq_nice (int nice = 0)
1658 CODE: 2013 CODE:
1659 nice = next_pri - nice; 2014 nice = next_pri - nice;
1660 if (nice < PRI_MIN) nice = PRI_MIN; 2015 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1661 if (nice > PRI_MAX) nice = PRI_MAX; 2016 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1662 next_pri = nice + PRI_BIAS; 2017 next_pri = nice;
1663 2018
1664void 2019void
1665flush () 2020flush ()
1666 PROTOTYPE:
1667 CODE: 2021 CODE:
1668 while (nreqs) 2022 while (eio_nreqs ())
1669 { 2023 {
1670 poll_wait (); 2024 poll_wait ();
1671 poll_cb (); 2025 poll_cb ();
1672 } 2026 }
1673 2027
1674int 2028int
1675poll() 2029poll ()
1676 PROTOTYPE:
1677 CODE: 2030 CODE:
1678 poll_wait (); 2031 poll_wait ();
1679 RETVAL = poll_cb (); 2032 RETVAL = poll_cb ();
1680 OUTPUT: 2033 OUTPUT:
1681 RETVAL 2034 RETVAL
1682 2035
1683int 2036int
1684poll_fileno() 2037poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 2038 CODE:
1687 RETVAL = respipe [0]; 2039 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 2040 OUTPUT:
1689 RETVAL 2041 RETVAL
1690 2042
1691int 2043int
1692poll_cb(...) 2044poll_cb (...)
1693 PROTOTYPE: 2045 PROTOTYPE:
1694 CODE: 2046 CODE:
1695 RETVAL = poll_cb (); 2047 RETVAL = poll_cb ();
1696 OUTPUT: 2048 OUTPUT:
1697 RETVAL 2049 RETVAL
1698 2050
1699void 2051void
1700poll_wait() 2052poll_wait ()
1701 PROTOTYPE:
1702 CODE: 2053 CODE:
1703 poll_wait (); 2054 poll_wait ();
1704 2055
1705void
1706setsig (int signum = SIGIO)
1707 PROTOTYPE: ;$
1708 CODE:
1709{
1710 if (block_sig_level)
1711 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1712
1713 LOCK (reslock);
1714 main_tid = pthread_self ();
1715 main_sig = signum;
1716 UNLOCK (reslock);
1717
1718 if (main_sig && npending)
1719 pthread_kill (main_tid, main_sig);
1720}
1721
1722void
1723aio_block (SV *cb)
1724 PROTOTYPE: &
1725 PPCODE:
1726{
1727 int count;
1728
1729 block_sig ();
1730 PUSHMARK (SP);
1731 PUTBACK;
1732 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1733 SPAGAIN;
1734 unblock_sig ();
1735
1736 if (SvTRUE (ERRSV))
1737 croak (0);
1738
1739 XSRETURN (count);
1740}
1741
1742int 2056int
1743nreqs() 2057nreqs ()
1744 PROTOTYPE:
1745 CODE: 2058 CODE:
1746 RETVAL = nreqs; 2059 RETVAL = eio_nreqs ();
1747 OUTPUT: 2060 OUTPUT:
1748 RETVAL 2061 RETVAL
1749 2062
1750int 2063int
1751nready() 2064nready ()
1752 PROTOTYPE:
1753 CODE: 2065 CODE:
1754 RETVAL = get_nready (); 2066 RETVAL = eio_nready ();
1755 OUTPUT: 2067 OUTPUT:
1756 RETVAL 2068 RETVAL
1757 2069
1758int 2070int
1759npending() 2071npending ()
1760 PROTOTYPE:
1761 CODE: 2072 CODE:
1762 RETVAL = get_npending (); 2073 RETVAL = eio_npending ();
1763 OUTPUT: 2074 OUTPUT:
1764 RETVAL 2075 RETVAL
1765 2076
1766int 2077int
1767nthreads() 2078nthreads ()
1768 PROTOTYPE:
1769 CODE: 2079 CODE:
1770 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2080 RETVAL = eio_nthreads ();
1771 RETVAL = started;
1772 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1773 OUTPUT: 2081 OUTPUT:
1774 RETVAL 2082 RETVAL
1775 2083
2084int
2085fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2086 CODE:
2087 RETVAL = posix_fadvise (fh, offset, length, advice);
2088 OUTPUT:
2089 RETVAL
2090
2091IV
2092sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2093 CODE:
2094 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2095 OUTPUT:
2096 RETVAL
2097
2098void
2099mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2100 PPCODE:
2101 sv_clear_foreign (scalar);
2102{
2103 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2104 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2105 if (addr == (void *)-1)
2106 XSRETURN_NO;
2107
2108 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2109
2110 if (!(prot & PROT_WRITE))
2111 SvREADONLY_on (scalar);
2112
2113 XSRETURN_YES;
2114}
2115
2116void
2117munmap (SV *scalar)
2118 CODE:
2119 sv_clear_foreign (scalar);
2120
2121SV *
2122mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2123 CODE:
2124{
2125 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2126 void *new;
2127
2128 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2129 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2130
2131 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2132
2133 RETVAL = &PL_sv_no;
2134
2135 if (new != (void *)-1)
2136 {
2137 RETVAL = new == (void *)mg->mg_ptr
2138 ? newSVpvn ("0 but true", 10)
2139 : &PL_sv_yes;
2140
2141 mg->mg_ptr = (char *)new;
2142 mg->mg_obj = (SV *)new_length;
2143
2144 SvPVX (scalar) = mg->mg_ptr;
2145 SvCUR_set (scalar, new_length);
2146 }
2147}
2148 OUTPUT:
2149 RETVAL
2150
2151int
2152madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2153 ALIAS:
2154 mprotect = 1
2155 CODE:
2156{
2157 STRLEN svlen;
2158 void *addr = SvPVbyte (scalar, svlen);
2159 STRLEN len = SvUV (length);
2160
2161 if (offset < 0)
2162 offset += svlen;
2163
2164 if (offset < 0 || offset > svlen)
2165 croak ("offset outside of scalar");
2166
2167 if (!SvOK (length) || len + offset > svlen)
2168 len = svlen - offset;
2169
2170 addr = (void *)(((intptr_t)addr) + offset);
2171 eio_page_align (&addr, &len);
2172
2173 switch (ix)
2174 {
2175 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2176 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2177 }
2178}
2179 OUTPUT:
2180 RETVAL
2181
2182int
2183munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2184 CODE:
2185{
2186 STRLEN svlen;
2187 void *addr = SvPVbyte (scalar, svlen);
2188 size_t len = SvUV (length);
2189
2190 if (offset < 0)
2191 offset += svlen;
2192
2193 if (offset < 0 || offset > svlen)
2194 croak ("offset outside of scalar");
2195
2196 if (!SvOK (length) || len + offset > svlen)
2197 len = svlen - offset;
2198
2199 addr = (void *)(((intptr_t)addr) + offset);
2200 eio_page_align (&addr, &len);
2201#if _POSIX_MEMLOCK_RANGE
2202 RETVAL = munlock (addr, len);
2203#else
2204 RETVAL = EIO_ENOSYS ();
2205#endif
2206}
2207 OUTPUT:
2208 RETVAL
2209
2210int
2211munlockall ()
2212 CODE:
2213#if _POSIX_MEMLOCK
2214 munlockall ();
2215#else
2216 RETVAL = EIO_ENOSYS ();
2217#endif
2218 OUTPUT:
2219 RETVAL
2220
2221int
2222splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2223 CODE:
2224{
2225#if HAVE_LINUX_SPLICE
2226 loff_t off_in_, off_out_;
2227 RETVAL = splice (
2228 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2229 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2230 length, flags
2231 );
2232#else
2233 RETVAL = EIO_ENOSYS ();
2234#endif
2235}
2236 OUTPUT:
2237 RETVAL
2238
2239int
2240tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2241 CODE:
2242#if HAVE_LINUX_SPLICE
2243 RETVAL = tee (rfh, wfh, length, flags);
2244#else
2245 RETVAL = EIO_ENOSYS ();
2246#endif
2247 OUTPUT:
2248 RETVAL
2249
2250int
2251pipesize (aio_rfd rfh, int new_size = -1)
2252 PROTOTYPE: $;$
2253 CODE:
2254#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2255 if (new_size >= 0)
2256 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2257 else
2258 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2259#else
2260 errno = ENOSYS;
2261 RETVAL = -1;
2262#endif
2263 OUTPUT:
2264 RETVAL
2265
2266void
2267pipe2 (int flags = 0)
2268 PROTOTYPE: ;$
2269 PPCODE:
2270{
2271 int fd[2];
2272 int res;
2273
2274 if (flags)
2275#if HAVE_PIPE2
2276 res = pipe2 (fd, flags);
2277#else
2278 res = (errno = ENOSYS, -1);
2279#endif
2280 else
2281 res = pipe (fd);
2282
2283 if (!res)
2284 {
2285 EXTEND (SP, 2);
2286 PUSHs (newmortalFH (fd[0], O_RDONLY));
2287 PUSHs (newmortalFH (fd[1], O_WRONLY));
2288 }
2289}
2290
2291void
2292eventfd (unsigned int initval = 0, int flags = 0)
2293 PPCODE:
2294{
2295 int fd;
2296#if HAVE_EVENTFD
2297 fd = eventfd (initval, flags);
2298#else
2299 fd = (errno = ENOSYS, -1);
2300#endif
2301
2302 XPUSHs (newmortalFH (fd, O_RDWR));
2303}
2304
2305void
2306timerfd_create (int clockid, int flags = 0)
2307 PPCODE:
2308{
2309 int fd;
2310#if HAVE_TIMERFD
2311 fd = timerfd_create (clockid, flags);
2312#else
2313 fd = (errno = ENOSYS, -1);
2314#endif
2315
2316 XPUSHs (newmortalFH (fd, O_RDWR));
2317}
2318
2319void
2320timerfd_settime (SV *fh, int flags, NV interval, NV value)
2321 PPCODE:
2322{
2323 int fd = s_fileno_croak (fh, 0);
2324#if HAVE_TIMERFD
2325 int res;
2326 struct itimerspec its, ots;
2327
2328 ts_set (&its.it_interval, interval);
2329 ts_set (&its.it_value , value);
2330 res = timerfd_settime (fd, flags, &its, &ots);
2331
2332 if (!res)
2333 {
2334 EXTEND (SP, 2);
2335 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2336 PUSHs (newSVnv (ts_get (&ots.it_value)));
2337 }
2338#else
2339 errno = ENOSYS;
2340#endif
2341}
2342
2343void
2344timerfd_gettime (SV *fh)
2345 PPCODE:
2346{
2347 int fd = s_fileno_croak (fh, 0);
2348#if HAVE_TIMERFD
2349 int res;
2350 struct itimerspec ots;
2351 res = timerfd_gettime (fd, &ots);
2352
2353 if (!res)
2354 {
2355 EXTEND (SP, 2);
2356 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2357 PUSHs (newSVnv (ts_get (&ots.it_value)));
2358 }
2359#else
2360 errno = ENOSYS;
2361#endif
2362}
2363
2364UV
2365get_fdlimit ()
2366 CODE:
2367#if HAVE_RLIMITS
2368 struct rlimit rl;
2369 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2370 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2371#endif
2372 XSRETURN_UNDEF;
2373 OUTPUT:
2374 RETVAL
2375
2376void
2377min_fdlimit (UV limit = 0x7fffffffU)
2378 CODE:
2379{
2380#if HAVE_RLIMITS
2381 struct rlimit rl;
2382 rlim_t orig_rlim_max;
2383 UV bit;
2384
2385 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2386 goto fail;
2387
2388 if (rl.rlim_cur == RLIM_INFINITY)
2389 XSRETURN_YES;
2390
2391 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2392
2393 if (rl.rlim_cur < limit)
2394 {
2395 rl.rlim_cur = limit;
2396
2397 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2398 rl.rlim_max = rl.rlim_cur;
2399 }
2400
2401 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2402 XSRETURN_YES;
2403
2404 if (errno == EPERM)
2405 {
2406 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2407 /* our limit overflows a system-wide limit */
2408 /* try an adaptive algorithm, but do not lower the hardlimit */
2409 rl.rlim_max = 0;
2410 for (bit = 0x40000000U; bit; bit >>= 1)
2411 {
2412 rl.rlim_max |= bit;
2413 rl.rlim_cur = rl.rlim_max;
2414
2415 /* nevr decrease the hard limit */
2416 if (rl.rlim_max < orig_rlim_max)
2417 break;
2418
2419 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2420 rl.rlim_max &= ~bit; /* too high, remove bit again */
2421 }
2422
2423 /* now, raise the soft limit to the max permitted */
2424 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2425 {
2426 rl.rlim_cur = rl.rlim_max;
2427 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2428 errno = EPERM;
2429 }
2430 }
2431#endif
2432 fail:
2433 XSRETURN_UNDEF;
2434}
2435
2436void _on_next_submit (SV *cb)
2437 CODE:
2438 SvREFCNT_dec (on_next_submit);
2439 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2440
1776PROTOTYPES: DISABLE 2441PROTOTYPES: DISABLE
2442
2443MODULE = IO::AIO PACKAGE = IO::AIO::WD
2444
2445BOOT:
2446{
2447 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2448 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2449}
2450
2451void
2452DESTROY (SV *self)
2453 CODE:
2454{
2455 aio_wd wd = SvAIO_WD (self);
2456#if HAVE_AT
2457 {
2458 SV *callback = &PL_sv_undef;
2459 dREQ; /* clobbers next_pri :/ */
2460 next_pri = req->pri; /* restore next_pri */
2461 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2462 req->type = EIO_WD_CLOSE;
2463 req->wd = wd;
2464 REQ_SEND;
2465 }
2466#else
2467 eio_wd_close_sync (wd);
2468#endif
2469}
1777 2470
1778MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2471MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1779 2472
1780void 2473void
1781cancel (aio_req_ornot req) 2474cancel (aio_req_ornot req)
1782 CODE: 2475 CODE:
1783 req_cancel (req); 2476 eio_cancel (req);
1784 2477
1785void 2478void
1786cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2479cb (aio_req_ornot req, SV *callback = NO_INIT)
1787 CODE: 2480 PPCODE:
2481{
2482 if (GIMME_V != G_VOID)
2483 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2484
2485 if (items > 1)
2486 {
2487 SV *cb_cv = get_cb (callback);
2488
1788 SvREFCNT_dec (req->callback); 2489 SvREFCNT_dec (req->callback);
1789 req->callback = newSVsv (callback); 2490 req->callback = SvREFCNT_inc (cb_cv);
2491 }
2492}
1790 2493
1791MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2494MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1792 2495
1793void 2496void
1794add (aio_req grp, ...) 2497add (aio_req grp, ...)
1795 PPCODE: 2498 PPCODE:
1796{ 2499{
1797 int i; 2500 int i;
1798 aio_req req;
1799
1800 if (main_sig && !block_sig_level)
1801 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1802 2501
1803 if (grp->int1 == 2) 2502 if (grp->int1 == 2)
1804 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2503 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1805 2504
1806 for (i = 1; i < items; ++i ) 2505 for (i = 1; i < items; ++i )
1807 { 2506 {
2507 aio_req req;
2508
1808 if (GIMME_V != G_VOID) 2509 if (GIMME_V != G_VOID)
1809 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2510 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1810 2511
1811 req = SvAIO_REQ (ST (i)); 2512 req = SvAIO_REQ (ST (i));
1812 2513
1813 if (req) 2514 if (req)
1814 { 2515 eio_grp_add (grp, req);
1815 ++grp->size;
1816 req->grp = grp;
1817
1818 req->grp_prev = 0;
1819 req->grp_next = grp->grp_first;
1820
1821 if (grp->grp_first)
1822 grp->grp_first->grp_prev = req;
1823
1824 grp->grp_first = req;
1825 }
1826 } 2516 }
1827} 2517}
1828 2518
1829void 2519void
1830cancel_subs (aio_req_ornot req) 2520cancel_subs (aio_req_ornot req)
… …
1839 AV *av; 2529 AV *av;
1840 2530
1841 grp->errorno = errno; 2531 grp->errorno = errno;
1842 2532
1843 av = newAV (); 2533 av = newAV ();
2534 av_extend (av, items - 1);
1844 2535
1845 for (i = 1; i < items; ++i ) 2536 for (i = 1; i < items; ++i )
1846 av_push (av, newSVsv (ST (i))); 2537 av_push (av, newSVsv (ST (i)));
1847 2538
1848 SvREFCNT_dec (grp->sv1); 2539 SvREFCNT_dec (grp->sv1);
… …
1855 grp->errorno = errorno; 2546 grp->errorno = errorno;
1856 2547
1857void 2548void
1858limit (aio_req grp, int limit) 2549limit (aio_req grp, int limit)
1859 CODE: 2550 CODE:
1860 grp->int2 = limit; 2551 eio_grp_limit (grp, limit);
1861 aio_grp_feed (grp);
1862 2552
1863void 2553void
1864feed (aio_req grp, SV *callback=&PL_sv_undef) 2554feed (aio_req grp, SV *callback = &PL_sv_undef)
1865 CODE: 2555 CODE:
1866{ 2556{
1867 SvREFCNT_dec (grp->sv2); 2557 SvREFCNT_dec (grp->sv2);
1868 grp->sv2 = newSVsv (callback); 2558 grp->sv2 = newSVsv (callback);
2559 grp->feed = aio_grp_feed;
1869 2560
1870 if (grp->int2 <= 0) 2561 if (grp->int2 <= 0)
1871 grp->int2 = 2; 2562 grp->int2 = 2;
1872 2563
1873 aio_grp_feed (grp); 2564 eio_grp_limit (grp, grp->int2);
1874} 2565}
1875 2566

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