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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 1.257 by root, Tue Jul 17 23:20:09 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"
10
11#include <stddef.h> 9#include <stddef.h>
12#include <stdlib.h> 10#include <stdlib.h>
13#include <errno.h> 11#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 12#include <sys/types.h>
17#include <sys/stat.h> 13#include <sys/stat.h>
18#include <limits.h> 14#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 15#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 16#include <sched.h>
23 17
24#if HAVE_SENDFILE 18#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> 19# include <sys/mman.h>
30# elif __hpux 20#endif
21
22/* the incompetent fool that created musl keeps __linux__, refuses
23 * to implement any linux standard apis, and also has no way to test
24 * for his broken iplementation. don't complain to me if this fails
25 * for you.
26 */
27#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
28# include <linux/fs.h>
29# ifdef FS_IOC_FIEMAP
30# include <linux/types.h>
31# include <linux/fiemap.h>
32# define HAVE_FIEMAP 1
33# endif
34#endif
35
36/* perl namespace pollution */
37#undef VERSION
38
39/* perl stupidly overrides readdir and maybe others */
40/* with thread-unsafe versions, imagine that :( */
41#undef readdir
42#undef opendir
43#undef closedir
44
45#ifdef _WIN32
46
47 // perl overrides all those nice libc functions
48
49 #undef malloc
50 #undef free
51 #undef open
52 #undef read
53 #undef write
54 #undef send
55 #undef recv
56 #undef stat
57 #undef lstat
58 #undef fstat
59 #undef truncate
60 #undef ftruncate
61 #undef open
62 #undef link
63 #undef close
64 #undef unlink
65 #undef mkdir
66 #undef rmdir
67 #undef rename
68 #undef lseek
69 #undef opendir
70 #undef readdir
71 #undef closedir
72 #undef chmod
73 #undef fchmod
74 #undef dup
75 #undef dup2
76 #undef abort
77 #undef pipe
78
79 #define EIO_STRUCT_STAT struct _stati64
80 #define EIO_STRUCT_STATI64
81
82#else
83
31# include <sys/socket.h> 84 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 85 #include <sys/select.h>
86 #include <unistd.h>
87 #include <utime.h>
88 #include <signal.h>
89
90 #define EIO_STRUCT_STAT Stat_t
91
92#endif
93
94/*****************************************************************************/
95
96#if __GNUC__ >= 3
97# define expect(expr,value) __builtin_expect ((expr),(value))
98#else
99# define expect(expr,value) (expr)
100#endif
101
102#define expect_false(expr) expect ((expr) != 0, 0)
103#define expect_true(expr) expect ((expr) != 0, 1)
104
105/*****************************************************************************/
106
107#include "libeio/config.h"
108
109#include "schmorp.h"
110
111#if HAVE_EVENTFD
112# include <sys/eventfd.h>
113#endif
114
115#if HAVE_TIMERFD
116# include <sys/timerfd.h>
117#endif
118
119#if HAVE_RLIMITS
120 #include <sys/time.h>
121 #include <sys/resource.h>
122#endif
123
124typedef SV SV8; /* byte-sv, used for argument-checking */
125typedef int aio_rfd; /* read file desriptor */
126typedef int aio_wfd; /* write file descriptor */
127
128static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
129
130#define EIO_REQ_MEMBERS \
131 SV *callback; \
132 SV *sv1, *sv2; \
133 SV *sv3, *sv4; \
134 STRLEN stroffset; \
135 SV *self;
136
137#define EIO_NO_WRAPPERS 1
138
139#include "libeio/eio.h"
140
141static int req_invoke (eio_req *req);
142#define EIO_FINISH(req) req_invoke (req)
143static void req_destroy (eio_req *grp);
144#define EIO_DESTROY(req) req_destroy (req)
145
146#include "libeio/eio.c"
147
148#if !HAVE_POSIX_FADVISE
149# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#if !HAVE_POSIX_MADVISE
153# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
154#endif
155
156#ifndef MAP_ANONYMOUS
157# ifdef MAP_ANON
158# define MAP_ANONYMOUS MAP_ANON
34# else 159# else
35# error sendfile support requested but not available 160# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 161# endif
37#endif 162#endif
38 163
39/* number of seconds after which idle threads exit */ 164/* defines all sorts of constants to 0 unless they are already defined */
40#define IDLE_TIMEOUT 10 165/* also provides const_iv_ and const_niv_ macros for them */
166#include "def0.h"
41 167
42/* used for struct dirent, AIX doesn't provide it */ 168#ifndef makedev
43#ifndef NAME_MAX 169# define makedev(maj,min) (((maj) << 8) | (min))
44# define NAME_MAX 4096
45#endif 170#endif
171#ifndef major
172# define major(dev) ((dev) >> 8)
173#endif
174#ifndef minor
175# define minor(dev) ((dev) & 0xff)
176#endif
46 177
47/* buffer size for various temporary buffers */ 178#if PAGESIZE <= 0
48#define AIO_BUFSIZE 65536 179# define PAGESIZE sysconf (_SC_PAGESIZE)
180#endif
49 181
50#define dBUF \ 182/*****************************************************************************/
51 char *aio_buf; \ 183
52 LOCK (wrklock); \ 184#if !_POSIX_MAPPED_FILES
53 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 185# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
54 UNLOCK (wrklock); \ 186# define munmap(addr,length) EIO_ENOSYS ()
55 if (!aio_buf) \ 187#endif
188
189#if !_POSIX_MEMORY_PROTECTION
190# define mprotect(addr,len,prot) EIO_ENOSYS ()
191#endif
192
193#if !MREMAP_MAYMOVE
194# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
195#endif
196
197#define FOREIGN_MAGIC PERL_MAGIC_ext
198
199static int ecb_cold
200mmap_free (pTHX_ SV *sv, MAGIC *mg)
201{
202 int old_errno = errno;
203 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
204 errno = old_errno;
205
206 mg->mg_obj = 0; /* just in case */
207
208 SvREADONLY_off (sv);
209
210 if (SvPVX (sv) != mg->mg_ptr)
211 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
212
213 SvCUR_set (sv, 0);
214 SvPVX (sv) = 0;
215 SvOK_off (sv);
216
56 return -1; 217 return 0;
218}
57 219
58typedef SV SV8; /* byte-sv, used for argument-checking */ 220static MGVTBL mmap_vtbl = {
59 221 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}; 222};
73 223
74#define AIO_REQ_KLASS "IO::AIO::REQ" 224static int ecb_cold
75#define AIO_GRP_KLASS "IO::AIO::GRP" 225sysfree_free (pTHX_ SV *sv, MAGIC *mg)
76
77typedef struct aio_cb
78{ 226{
79 struct aio_cb *volatile next; 227 free (mg->mg_ptr);
228 mg->mg_obj = 0; /* just in case */
80 229
81 SV *callback, *fh; 230 SvREADONLY_off (sv);
82 SV *sv1, *sv2;
83 void *ptr1, *ptr2;
84 off_t offs;
85 size_t size;
86 ssize_t result;
87 231
88 STRLEN stroffset; 232 if (SvPVX (sv) != mg->mg_ptr)
89 int type; 233 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
90 int int1, int2;
91 int errorno;
92 mode_t mode; /* open */
93 234
94 unsigned char flags; 235 SvCUR_set (sv, 0);
95 unsigned char pri; 236 SvPVX (sv) = 0;
237 SvOK_off (sv);
96 238
97 SV *self; /* the perl counterpart of this request, if any */ 239 return 0;
98 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 240}
99} aio_cb;
100 241
101enum { 242static MGVTBL sysfree_vtbl = {
102 FLAG_CANCELLED = 0x01, /* request was cancelled */ 243 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}; 244};
106 245
107typedef aio_cb *aio_req; 246/*****************************************************************************/
108typedef aio_cb *aio_req_ornot;
109 247
110enum { 248/* helper: set scalar to foreign ptr with custom free */
111 PRI_MIN = -4, 249static void
112 PRI_MAX = 4, 250sv_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{ 251{
127 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 252 sv_force_normal (sv);
128 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
129}
130 253
131static thread_t main_tid; 254 /* we store the length in mg_obj, as namlen is I32 :/ */
132static int main_sig; 255 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
133static int block_sig_level; 256 ->mg_obj = (SV *)length;
134 257
135void block_sig () 258 SvUPGRADE (sv, SVt_PV); /* nop... */
136{
137 sigset_t ss;
138 259
139 if (block_sig_level++) 260 if (SvLEN (sv))
261 Safefree (SvPVX (sv));
262
263 SvPVX (sv) = (char *)addr;
264 SvCUR_set (sv, length);
265 SvLEN_set (sv, 0);
266 SvPOK_only (sv);
267}
268
269static void
270sv_clear_foreign (SV *sv)
271{
272 /* todo: iterate over magic and only free ours, but of course */
273 /* the perl5porters will call that (correct) behaviour buggy */
274 sv_unmagic (sv, FOREIGN_MAGIC);
275}
276
277/*****************************************************************************/
278
279static void
280fiemap (eio_req *req)
281{
282 req->result = -1;
283
284#if HAVE_FIEMAP
285 /* assume some c99 */
286 struct fiemap *fiemap = 0;
287 size_t end_offset;
288 int count = req->int3;
289
290 req->flags |= EIO_FLAG_PTR1_FREE;
291
292 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
293 /* increase in 3.5kb steps */
294 if (count < 0)
295 count = 8;
296
297 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
298 errno = ENOMEM;
299 if (!fiemap)
140 return; 300 return;
141 301
142 if (!main_sig) 302 req->ptr1 = fiemap;
303
304 fiemap->fm_start = req->offs;
305 fiemap->fm_length = req->size;
306 fiemap->fm_flags = req->int2;
307 fiemap->fm_extent_count = count;
308
309 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
143 return; 310 return;
144 311
145 sigemptyset (&ss); 312 if (req->int3 >= 0 /* not autosizing */
146 sigaddset (&ss, main_sig); 313 || !fiemap->fm_mapped_extents /* no more extents */
147 pthread_sigmask (SIG_BLOCK, &ss, 0); 314 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
148} 315 goto done;
149 316
150void unblock_sig () 317 /* else we have to loop -
151{ 318 * it would be tempting (actually I tried that first) to just query the
152 sigset_t ss; 319 * number of extents needed, but linux often feels like not returning all
320 * extents, without telling us it left any out. this complicates
321 * this quite a bit.
322 */
153 323
154 if (--block_sig_level) 324 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
155 return;
156 325
157 if (!main_sig) 326 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 { 327 {
190 closedir (wrk->dirp); 328 /* 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; 329 char scratch[3072];
192 } 330 struct fiemap *incmap = (struct fiemap *)scratch;
193 331
194 if (wrk->dbuf) 332 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
195 { 333 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
196 free (wrk->dbuf); 334 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
197 wrk->dbuf = 0; 335 incmap->fm_flags = fiemap->fm_flags;
198 } 336 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
199}
200 337
201static void worker_free (worker *wrk) 338 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; 339 return;
296 340
297 --q->size; 341 if (!incmap->fm_mapped_extents)
342 goto done;
298 343
299 for (pri = NUM_PRI; pri--; ) 344 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
300 { 345 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
301 aio_req req = q->qs[pri]; 346 errno = ENOMEM;
302
303 if (req) 347 if (!fiemap)
348 return;
349
350 req->ptr1 = fiemap;
351
352 for (count = 0; count < incmap->fm_mapped_extents; ++count)
304 { 353 {
305 if (!(q->qs[pri] = req->next)) 354 struct fiemap_extent *e = incmap->fm_extents + count;
306 q->qe[pri] = 0;
307 355
308 return req; 356 if (e->fe_logical + e->fe_length >= end_offset)
357 goto done;
358
359 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
360
361 if (e->fe_flags & FIEMAP_EXTENT_LAST)
362 goto done;
363
309 } 364 }
310 } 365 }
311 366
312 abort (); 367done:
313} 368 req->result = 0;
314 369
315static int poll_cb (); 370#else
316static int req_invoke (aio_req req); 371 errno = ENOSYS;
372#endif
373}
374
375/*****************************************************************************/
376
377enum {
378 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
379};
380
381typedef eio_req *aio_req;
382typedef eio_req *aio_req_ornot;
383typedef eio_wd aio_wd;
384
385static SV *on_next_submit;
386static int next_pri = EIO_PRI_DEFAULT;
387static int max_outstanding;
388
389static s_epipe respipe;
390
317static void req_free (aio_req req); 391static void req_destroy (aio_req req);
318static void req_cancel (aio_req req); 392static void req_cancel (aio_req req);
319 393
394static void
395want_poll (void)
396{
397 /* write a dummy byte to the pipe so fh becomes ready */
398 s_epipe_signal (&respipe);
399}
400
401static void
402done_poll (void)
403{
404 /* read any signals sent by the worker threads */
405 s_epipe_drain (&respipe);
406}
407
320/* must be called at most once */ 408/* must be called at most once */
321static SV *req_sv (aio_req req, const char *klass) 409static SV *
410req_sv (aio_req req, HV *stash)
322{ 411{
323 if (!req->self) 412 if (!req->self)
324 { 413 {
325 req->self = (SV *)newHV (); 414 req->self = (SV *)newHV ();
326 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 415 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
327 } 416 }
328 417
329 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 418 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
330} 419}
331 420
332static aio_req SvAIO_REQ (SV *sv) 421static SV *
422newSVaio_wd (aio_wd wd)
423{
424 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
425}
426
427static aio_req
428SvAIO_REQ (SV *sv)
333{ 429{
334 MAGIC *mg; 430 MAGIC *mg;
335 431
336 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 432 if (!SvROK (sv)
433 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
434 || (SvSTASH (SvRV (sv)) != aio_grp_stash
435 && SvSTASH (SvRV (sv)) != aio_req_stash
436 && !sv_derived_from (sv, "IO::AIO::REQ")))
337 croak ("object of class " AIO_REQ_KLASS " expected"); 437 croak ("object of class IO::AIO::REQ expected");
338 438
339 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 439 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
340 440
341 return mg ? (aio_req)mg->mg_ptr : 0; 441 return mg ? (aio_req)mg->mg_ptr : 0;
342} 442}
343 443
444static aio_wd
445SvAIO_WD (SV *sv)
446{
447 if (!SvROK (sv)
448 || SvTYPE (SvRV (sv)) != SVt_PVMG
449 || SvSTASH (SvRV (sv)) != aio_wd_stash)
450 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
451
452 return (aio_wd)(long)SvIVX (SvRV (sv));
453}
454
455static SV *
456newmortalFH (int fd, int flags)
457{
458 if (fd < 0)
459 return &PL_sv_undef;
460
461 GV *gv = (GV *)sv_newmortal ();
462 char sym[64];
463 int symlen;
464
465 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
466 gv_init (gv, aio_stash, sym, symlen, 0);
467
468 symlen = snprintf (
469 sym,
470 sizeof (sym),
471 "%s&=%d",
472 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
473 fd
474 );
475
476 return do_open (gv, sym, symlen, 0, 0, 0, 0)
477 ? (SV *)gv : &PL_sv_undef;
478}
479
480static void
344static void aio_grp_feed (aio_req grp) 481aio_grp_feed (aio_req grp)
345{ 482{
346 block_sig (); 483 if (grp->sv2 && SvOK (grp->sv2))
347
348 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
349 { 484 {
350 int old_len = grp->size;
351
352 if (grp->sv2 && SvOK (grp->sv2))
353 {
354 dSP; 485 dSP;
355 486
356 ENTER; 487 ENTER;
357 SAVETMPS; 488 SAVETMPS;
358 PUSHMARK (SP); 489 PUSHMARK (SP);
359 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 490 XPUSHs (req_sv (grp, aio_grp_stash));
360 PUTBACK; 491 PUTBACK;
361 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 492 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
362 SPAGAIN; 493 SPAGAIN;
363 FREETMPS; 494 FREETMPS;
364 LEAVE; 495 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 } 496 }
375
376 unblock_sig ();
377} 497}
378 498
379static void aio_grp_dec (aio_req grp) 499static void
500req_submit (eio_req *req)
380{ 501{
381 --grp->size; 502 eio_submit (req);
382 503
383 /* call feeder, if applicable */ 504 if (expect_false (on_next_submit))
384 aio_grp_feed (grp);
385
386 /* finish, if done */
387 if (!grp->size && grp->int1)
388 { 505 {
389 block_sig (); 506 dSP;
507 SV *cb = sv_2mortal (on_next_submit);
390 508
391 if (!req_invoke (grp)) 509 on_next_submit = 0;
392 {
393 req_free (grp);
394 unblock_sig ();
395 croak (0);
396 }
397 510
398 req_free (grp); 511 PUSHMARK (SP);
399 unblock_sig (); 512 PUTBACK;
513 call_sv (cb, G_DISCARD | G_EVAL);
400 } 514 }
401} 515}
402 516
517static int
403static int req_invoke (aio_req req) 518req_invoke (eio_req *req)
404{ 519{
405 dSP;
406
407 if (req->flags & FLAG_SV1_RO_OFF) 520 if (req->flags & FLAG_SV2_RO_OFF)
408 SvREADONLY_off (req->sv1); 521 SvREADONLY_off (req->sv2);
409 522
410 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 523 if (!EIO_CANCELLED (req) && req->callback)
411 { 524 {
525 dSP;
526 static SV *sv_result_cache; /* caches the result integer SV */
527 SV *sv_result;
528
412 ENTER; 529 ENTER;
413 SAVETMPS; 530 SAVETMPS;
414 PUSHMARK (SP); 531 PUSHMARK (SP);
415 EXTEND (SP, 1); 532 EXTEND (SP, 1);
416 533
534 /* do not recreate the result IV from scratch each time */
535 if (expect_true (sv_result_cache))
536 {
537 sv_result = sv_result_cache; sv_result_cache = 0;
538 SvIV_set (sv_result, req->result);
539 SvIOK_only (sv_result);
540 }
541 else
542 {
543 sv_result = newSViv (req->result);
544 SvREADONLY_on (sv_result);
545 }
546
417 switch (req->type) 547 switch (req->type)
418 { 548 {
549 case EIO_WD_OPEN:
550 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
551 break;
552
419 case REQ_READDIR: 553 case EIO_READDIR:
420 { 554 {
421 SV *rv = &PL_sv_undef; 555 SV *rv = &PL_sv_undef;
422 556
423 if (req->result >= 0) 557 if (req->result >= 0)
424 { 558 {
425 int i; 559 int i;
426 char *buf = req->ptr2; 560 char *names = (char *)req->ptr2;
561 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
427 AV *av = newAV (); 562 AV *av = newAV ();
428 563
429 av_extend (av, req->result - 1); 564 av_extend (av, req->result - 1);
430 565
431 for (i = 0; i < req->result; ++i) 566 for (i = 0; i < req->result; ++i)
432 { 567 {
433 SV *sv = newSVpv (buf, 0); 568 if (req->int1 & EIO_READDIR_DENTS)
569 {
570 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
434 571
572 if (req->int1 & EIO_READDIR_CUSTOM2)
573 {
574 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
575 AV *avent = newAV ();
576
577 av_extend (avent, 2);
578
579 if (!sv_type [ent->type])
580 {
581 sv_type [ent->type] = newSViv (ent->type);
582 SvREADONLY_on (sv_type [ent->type]);
583 }
584
585 av_store (avent, 0, namesv);
586 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
587 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
588
589 av_store (av, i, newRV_noinc ((SV *)avent));
590 }
591 else
435 av_store (av, i, sv); 592 av_store (av, i, namesv);
593
594 ++ent;
595 }
596 else
597 {
598 SV *name = newSVpv (names, 0);
599 av_store (av, i, name);
436 buf += SvCUR (sv) + 1; 600 names += SvCUR (name) + 1;
601 }
437 } 602 }
438 603
439 rv = sv_2mortal (newRV_noinc ((SV *)av)); 604 rv = sv_2mortal (newRV_noinc ((SV *)av));
440 } 605 }
441 606
442 PUSHs (rv); 607 PUSHs (rv);
608
609 if (req->int1 & EIO_READDIR_CUSTOM1)
610 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
443 } 611 }
444 break; 612 break;
445 613
446 case REQ_OPEN: 614 case EIO_OPEN:
615 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
616 break;
617
618 case EIO_STATVFS:
619 case EIO_FSTATVFS:
447 { 620 {
448 /* convert fd to fh */ 621 SV *rv = &PL_sv_undef;
449 SV *fh; 622
623#ifndef _WIN32
624 if (req->result >= 0)
625 {
626 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
627 HV *hv = newHV ();
628 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
629 * chooses to make it a struct.
630 */
631 unsigned long fsid = 0;
632 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
450 633
451 PUSHs (sv_2mortal (newSViv (req->result))); 634 rv = sv_2mortal (newRV_noinc ((SV *)hv));
452 PUTBACK;
453 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
454 SPAGAIN;
455 635
456 fh = POPs; 636 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
457 PUSHMARK (SP); 637 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
638 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
639 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
640 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
641 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
642 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
643 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
644 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
645 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
646 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
647 }
648#endif
649
458 XPUSHs (fh); 650 PUSHs (rv);
459 } 651 }
652
460 break; 653 break;
461 654
462 case REQ_GROUP: 655 case EIO_GROUP:
463 req->int1 = 2; /* mark group as finished */ 656 req->int1 = 2; /* mark group as finished */
464 657
465 if (req->sv1) 658 if (req->sv1)
466 { 659 {
467 int i; 660 int i;
… …
471 for (i = 0; i <= AvFILL (av); ++i) 664 for (i = 0; i <= AvFILL (av); ++i)
472 PUSHs (*av_fetch (av, i, 0)); 665 PUSHs (*av_fetch (av, i, 0));
473 } 666 }
474 break; 667 break;
475 668
476 case REQ_NOP: 669 case EIO_NOP:
477 case REQ_BUSY: 670 case EIO_BUSY:
478 break; 671 break;
479 672
480 case REQ_READLINK: 673 case EIO_READLINK:
674 case EIO_REALPATH:
481 if (req->result > 0) 675 if (req->result > 0)
676 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
677 break;
678
679 case EIO_STAT:
680 case EIO_LSTAT:
681 case EIO_FSTAT:
682 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
683
684 if (!(PL_laststatval = req->result))
685 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
686 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
687
688 PUSHs (sv_result);
689 break;
690
691 case EIO_SEEK:
692 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
693 break;
694
695 case EIO_READ:
696 {
697 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
698 *SvEND (req->sv2) = 0;
699 SvPOK_only (req->sv2);
700 SvSETMAGIC (req->sv2);
701 PUSHs (sv_result);
702 }
703 break;
704
705 case EIO_SLURP:
706 {
707 if (req->result >= 0)
708 {
709 /* if length was originally not known, we steal the malloc'ed memory */
710 if (req->flags & EIO_FLAG_PTR2_FREE)
711 {
712 req->flags &= ~EIO_FLAG_PTR2_FREE;
713 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
714 }
715 else
716 {
717 SvCUR_set (req->sv2, req->result);
718 *SvEND (req->sv2) = 0;
719 SvPOK_only (req->sv2);
720 }
721
722 SvSETMAGIC (req->sv2);
723 }
724
725 PUSHs (sv_result);
726 }
727 break;
728
729 case EIO_CUSTOM:
730 if (req->feed == fiemap)
482 { 731 {
483 SvCUR_set (req->sv1, req->result); 732#if HAVE_FIEMAP
484 *SvEND (req->sv1) = 0;
485 PUSHs (req->sv1); 733 if (!req->result)
734 {
735 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
736
737 if (fiemap->fm_extent_count)
738 {
739 AV *av = newAV ();
740 int i;
741
742 while (fiemap->fm_mapped_extents)
743 {
744 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
745 AV *ext_av = newAV ();
746
747 av_store (ext_av, 3, newSVuv (extent->fe_flags));
748 av_store (ext_av, 2, newSVval64 (extent->fe_length));
749 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
750 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
751
752 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
753 }
754
755 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
756 }
757 else
758 {
759 SvIV_set (sv_result, fiemap->fm_mapped_extents);
760 PUSHs (sv_result);
761 }
762 }
763#endif
486 } 764 }
765 else
766 PUSHs (sv_result);
487 break; 767 break;
488 768
489 case REQ_STAT: 769 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
490 case REQ_LSTAT: 770 if (req->result > 0)
491 case REQ_FSTAT: 771 SvIV_set (sv_result, 0);
492 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 772 /* 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;
503 773
504 default: 774 default:
505 PUSHs (sv_2mortal (newSViv (req->result))); 775 PUSHs (sv_result);
506 break; 776 break;
507 } 777 }
508 778
509 errno = req->errorno; 779 errno = req->errorno;
510 780
511 PUTBACK; 781 PUTBACK;
512 call_sv (req->callback, G_VOID | G_EVAL); 782 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
513 SPAGAIN; 783 SPAGAIN;
784
785 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
786 SvREFCNT_dec (sv_result);
787 else
788 sv_result_cache = sv_result;
514 789
515 FREETMPS; 790 FREETMPS;
516 LEAVE; 791 LEAVE;
792
793 PUTBACK;
517 } 794 }
518 795
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); 796 return !!SvTRUE (ERRSV);
534} 797}
535 798
536static void req_free (aio_req req) 799static void
800req_destroy (aio_req req)
537{ 801{
538 if (req->self) 802 if (req->self)
539 { 803 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 804 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 805 SvREFCNT_dec (req->self);
542 } 806 }
543 807
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 808 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 809 SvREFCNT_dec (req->sv2);
810 SvREFCNT_dec (req->sv3);
811 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 812 SvREFCNT_dec (req->callback);
548 813
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 814 free (req);
553} 815}
554 816
817static void
555static void req_cancel_subs (aio_req grp) 818req_cancel_subs (aio_req grp)
556{ 819{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 820 if (grp->type != EIO_GROUP)
560 return; 821 return;
561 822
562 SvREFCNT_dec (grp->sv2); 823 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 824 grp->sv2 = 0;
564 825
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 826 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 827}
568 828
569static void req_cancel (aio_req req) 829static void ecb_cold
830create_respipe (void)
570{ 831{
571 req->flags |= FLAG_CANCELLED; 832 if (s_epipe_renew (&respipe))
572 833 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 834}
575 835
576static void *aio_proc(void *arg); 836static void
577 837poll_wait (void)
578static void start_thread (void)
579{ 838{
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) 839 while (eio_nreqs ())
676 { 840 {
677 int size; 841 int size;
678 if (WORDACCESS_UNSAFE) LOCK (reslock); 842
843 X_LOCK (EIO_POOL->reslock);
679 size = res_queue.size; 844 size = EIO_POOL->res_queue.size;
680 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 845 X_UNLOCK (EIO_POOL->reslock);
681 846
682 if (size) 847 if (size)
683 return; 848 return;
684 849
685 maybe_start_thread (); 850 etp_maybe_start_thread (EIO_POOL);
686 851
687 FD_ZERO(&rfd); 852 s_epipe_wait (&respipe);
688 FD_SET(respipe [0], &rfd);
689
690 select (respipe [0] + 1, &rfd, 0, 0, 0);
691 } 853 }
692} 854}
693 855
694static int poll_cb () 856static int
857poll_cb (void)
695{ 858{
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 (;;) 859 for (;;)
709 { 860 {
710 for (;;) 861 int res = eio_poll ();
862
863 if (res > 0)
864 croak (0);
865
866 if (!max_outstanding || max_outstanding > eio_nreqs ())
867 return res;
868
869 poll_wait ();
870 }
871}
872
873static void ecb_cold
874reinit (void)
875{
876 create_respipe ();
877
878 if (eio_init (want_poll, done_poll) < 0)
879 croak ("IO::AIO: unable to initialise eio library");
880}
881
882/*****************************************************************************/
883
884static SV *
885get_cb (SV *cb_sv)
886{
887 SvGETMAGIC (cb_sv);
888 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
889}
890
891static aio_req ecb_noinline
892dreq (SV *callback)
893{
894 SV *cb_cv;
895 aio_req req;
896 int req_pri = next_pri;
897 next_pri = EIO_PRI_DEFAULT;
898
899 cb_cv = get_cb (callback);
900
901 req = calloc (sizeof (*req), 1);
902 if (!req)
903 croak ("out of memory during eio_req allocation");
904
905 req->callback = SvREFCNT_inc (cb_cv);
906 req->pri = req_pri;
907
908 return req;
909}
910
911#define dREQ \
912 aio_req req = dreq (callback); \
913
914#define REQ_SEND \
915 PUTBACK; \
916 req_submit (req); \
917 SPAGAIN; \
918 \
919 if (GIMME_V != G_VOID) \
920 XPUSHs (req_sv (req, aio_req_stash));
921
922ecb_inline void
923req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
924{
925 if (expect_false (SvROK (path)))
926 {
927 SV *rv = SvRV (path);
928 SV *wdob;
929
930 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
711 { 931 {
712 maybe_start_thread (); 932 path = AvARRAY (rv)[1];
933 wdob = AvARRAY (rv)[0];
713 934
714 LOCK (reslock); 935 if (SvOK (wdob))
715 req = reqq_shift (&res_queue);
716
717 if (req)
718 { 936 {
719 --npending; 937 *wd = SvAIO_WD (wdob);
720 938 *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 } 939 }
742 else 940 else
743 { 941 *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 } 942 }
943 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
944 {
945 *wd = (aio_wd)(long)SvIVX (rv);
946 *wdsv = SvREFCNT_inc_NN (rv);
947 *ptr = ".";
948 return; /* path set to "." */
949 }
950 else
951 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
952 }
767 953
768 if (nreqs <= max_outstanding) 954 *pathsv = newSVsv (path);
955 *ptr = SvPVbyte_nolen (*pathsv);
956}
957
958static void ecb_noinline
959req_set_path1 (aio_req req, SV *path)
960{
961 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
962}
963
964static void ecb_noinline
965req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
966{
967 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
968
969 switch (SvTYPE (rv))
970 {
971 case SVt_PVIO:
972 case SVt_PVLV:
973 case SVt_PVGV:
974 req->type = type_fh;
975 req->sv1 = newSVsv (fh_or_path);
976 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
769 break; 977 break;
770 978
771 poll_wait (); 979 default:
772 980 req->type = type_path;
773 ++maxreqs; 981 req_set_path1 (req, fh_or_path);
982 break;
774 } 983 }
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} 984}
791 985
792/*****************************************************************************/ 986/*****************************************************************************/
793/* work around various missing functions */
794 987
795#if !HAVE_PREADWRITE 988static void
796# define pread aio_pread 989ts_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{ 990{
808 ssize_t res; 991 ts->tv_sec = value;
809 off_t ooffset; 992 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} 993}
820 994
821static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 995static NV
996ts_get (const struct timespec *ts)
822{ 997{
823 ssize_t res; 998 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} 999}
1046 1000
1047/*****************************************************************************/ 1001/*****************************************************************************/
1048 1002
1049static void *aio_proc (void *thr_arg) 1003XS(boot_IO__AIO) ecb_cold;
1050{
1051 aio_req req;
1052 struct timespec ts;
1053 worker *self = (worker *)thr_arg;
1054 1004
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 1005MODULE = IO::AIO PACKAGE = IO::AIO
1265 1006
1266PROTOTYPES: ENABLE 1007PROTOTYPES: ENABLE
1267 1008
1268BOOT: 1009BOOT:
1269{ 1010{
1011 static const struct {
1012 const char *name;
1013 IV iv;
1014 } *civ, const_iv[] = {
1015# define const_niv(name, value) { # name, (IV) value },
1016# define const_iv(name) { # name, (IV) name },
1017# define const_eio(name) { # name, (IV) EIO_ ## name },
1018
1019 /* you have to re-run ./gendef0 after adding/removing any constants here */
1020 /* the first block can be undef if missing */
1021 const_iv (ENOSYS)
1022 const_iv (EXDEV)
1023 const_iv (EBADR)
1024
1025 /* for lseek */
1026 const_iv (SEEK_DATA)
1027 const_iv (SEEK_HOLE)
1028
1029 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1030 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1031 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1032 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1033 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1034 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1035
1036 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1037 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1038 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1039 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1040 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1041
1042 /* the second block will be 0 when missing */
1043 const_iv (O_RDONLY)
1044 const_iv (O_WRONLY)
1045 const_iv (O_RDWR)
1046 const_iv (O_CREAT)
1047 const_iv (O_TRUNC)
1048 const_iv (O_EXCL)
1049 const_iv (O_APPEND)
1050
1051 const_iv (O_ASYNC)
1052 const_iv (O_DIRECT)
1053 const_iv (O_NOATIME)
1054
1055 const_iv (O_CLOEXEC)
1056 const_iv (O_NOCTTY)
1057 const_iv (O_NOFOLLOW)
1058 const_iv (O_NONBLOCK)
1059 const_iv (O_EXEC)
1060 const_iv (O_SEARCH)
1061 const_iv (O_DIRECTORY)
1062 const_iv (O_DSYNC)
1063 const_iv (O_RSYNC)
1064 const_iv (O_SYNC)
1065 const_iv (O_PATH)
1066 const_iv (O_TMPFILE)
1067 const_iv (O_TTY_INIT)
1068
1069 const_iv (S_IFIFO)
1070 const_iv (S_IFCHR)
1071 const_iv (S_IFBLK)
1072 const_iv (S_IFLNK)
1073 const_iv (S_IFREG)
1074 const_iv (S_IFDIR)
1075 const_iv (S_IFWHT)
1076 const_iv (S_IFSOCK)
1077 const_iv (S_IFMT)
1078
1079 const_iv (ST_RDONLY)
1080 const_iv (ST_NOSUID)
1081 const_iv (ST_NODEV)
1082 const_iv (ST_NOEXEC)
1083 const_iv (ST_SYNCHRONOUS)
1084 const_iv (ST_MANDLOCK)
1085 const_iv (ST_WRITE)
1086 const_iv (ST_APPEND)
1087 const_iv (ST_IMMUTABLE)
1088 const_iv (ST_NOATIME)
1089 const_iv (ST_NODIRATIME)
1090 const_iv (ST_RELATIME)
1091
1092 const_iv (PROT_NONE)
1093 const_iv (PROT_EXEC)
1094 const_iv (PROT_READ)
1095 const_iv (PROT_WRITE)
1096
1097 const_iv (MAP_PRIVATE)
1098 const_iv (MAP_SHARED)
1099 const_iv (MAP_FIXED)
1100 const_iv (MAP_ANONYMOUS)
1101
1102 /* linuxish */
1103 const_iv (MAP_LOCKED)
1104 const_iv (MAP_NORESERVE)
1105 const_iv (MAP_POPULATE)
1106 const_iv (MAP_NONBLOCK)
1107 const_iv (MAP_GROWSDOWN)
1108 const_iv (MAP_32BIT)
1109 const_iv (MAP_HUGETLB)
1110 const_iv (MAP_STACK)
1111
1112 const_iv (MREMAP_MAYMOVE)
1113 const_iv (MREMAP_FIXED)
1114
1115 const_iv (F_DUPFD_CLOEXEC)
1116
1117 const_iv (F_OFD_GETLK)
1118 const_iv (F_OFD_SETLK)
1119 const_iv (F_OFD_GETLKW)
1120
1121 const_iv (FIFREEZE)
1122 const_iv (FITHAW)
1123 const_iv (FITRIM)
1124 const_iv (FICLONE)
1125 const_iv (FICLONERANGE)
1126 const_iv (FIDEDUPERANGE)
1127
1128 const_iv (FS_IOC_GETFLAGS)
1129 const_iv (FS_IOC_SETFLAGS)
1130 const_iv (FS_IOC_GETVERSION)
1131 const_iv (FS_IOC_SETVERSION)
1132 const_iv (FS_IOC_FIEMAP)
1133 const_iv (FS_IOC_FSGETXATTR)
1134 const_iv (FS_IOC_FSSETXATTR)
1135 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1136 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1137 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1138
1139 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1140
1141 const_iv (FS_SECRM_FL)
1142 const_iv (FS_UNRM_FL)
1143 const_iv (FS_COMPR_FL)
1144 const_iv (FS_SYNC_FL)
1145 const_iv (FS_IMMUTABLE_FL)
1146 const_iv (FS_APPEND_FL)
1147 const_iv (FS_NODUMP_FL)
1148 const_iv (FS_NOATIME_FL)
1149 const_iv (FS_DIRTY_FL)
1150 const_iv (FS_COMPRBLK_FL)
1151 const_iv (FS_NOCOMP_FL)
1152 const_iv (FS_ENCRYPT_FL)
1153 const_iv (FS_BTREE_FL)
1154 const_iv (FS_INDEX_FL)
1155 const_iv (FS_JOURNAL_DATA_FL)
1156 const_iv (FS_NOTAIL_FL)
1157 const_iv (FS_DIRSYNC_FL)
1158 const_iv (FS_TOPDIR_FL)
1159 const_iv (FS_FL_USER_MODIFIABLE)
1160
1161 const_iv (FS_XFLAG_REALTIME)
1162 const_iv (FS_XFLAG_PREALLOC)
1163 const_iv (FS_XFLAG_IMMUTABLE)
1164 const_iv (FS_XFLAG_APPEND)
1165 const_iv (FS_XFLAG_SYNC)
1166 const_iv (FS_XFLAG_NOATIME)
1167 const_iv (FS_XFLAG_NODUMP)
1168 const_iv (FS_XFLAG_RTINHERIT)
1169 const_iv (FS_XFLAG_PROJINHERIT)
1170 const_iv (FS_XFLAG_NOSYMLINKS)
1171 const_iv (FS_XFLAG_EXTSIZE)
1172 const_iv (FS_XFLAG_EXTSZINHERIT)
1173 const_iv (FS_XFLAG_NODEFRAG)
1174 const_iv (FS_XFLAG_FILESTREAM)
1175 const_iv (FS_XFLAG_DAX)
1176 const_iv (FS_XFLAG_HASATTR)
1177
1178 const_iv (FIEMAP_FLAG_SYNC)
1179 const_iv (FIEMAP_FLAG_XATTR)
1180 const_iv (FIEMAP_FLAGS_COMPAT)
1181 const_iv (FIEMAP_EXTENT_LAST)
1182 const_iv (FIEMAP_EXTENT_UNKNOWN)
1183 const_iv (FIEMAP_EXTENT_DELALLOC)
1184 const_iv (FIEMAP_EXTENT_ENCODED)
1185 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1186 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1187 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1188 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1189 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1190 const_iv (FIEMAP_EXTENT_MERGED)
1191 const_iv (FIEMAP_EXTENT_SHARED)
1192
1193 const_iv (SPLICE_F_MOVE)
1194 const_iv (SPLICE_F_NONBLOCK)
1195 const_iv (SPLICE_F_MORE)
1196 const_iv (SPLICE_F_GIFT)
1197
1198 const_iv (EFD_CLOEXEC)
1199 const_iv (EFD_NONBLOCK)
1200 const_iv (EFD_SEMAPHORE)
1201
1202 const_iv (CLOCK_REALTIME)
1203 const_iv (CLOCK_MONOTONIC)
1204 const_iv (CLOCK_BOOTTIME)
1205 const_iv (CLOCK_REALTIME_ALARM)
1206 const_iv (CLOCK_BOOTTIME_ALARM)
1207
1208 const_iv (TFD_NONBLOCK)
1209 const_iv (TFD_CLOEXEC)
1210
1211 const_iv (TFD_TIMER_ABSTIME)
1212 const_iv (TFD_TIMER_CANCEL_ON_SET)
1213
1214 /* these are libeio constants, and are independent of gendef0 */
1215 const_eio (SEEK_SET)
1216 const_eio (SEEK_CUR)
1217 const_eio (SEEK_END)
1218
1219 const_eio (MCL_FUTURE)
1220 const_eio (MCL_CURRENT)
1221
1222 const_eio (MS_ASYNC)
1223 const_eio (MS_INVALIDATE)
1224 const_eio (MS_SYNC)
1225
1226 const_eio (MT_MODIFY)
1227
1228 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1229 const_eio (SYNC_FILE_RANGE_WRITE)
1230 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1231
1232 const_eio (FALLOC_FL_KEEP_SIZE)
1233 const_eio (FALLOC_FL_PUNCH_HOLE)
1234 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1235 const_eio (FALLOC_FL_ZERO_RANGE)
1236 const_eio (FALLOC_FL_INSERT_RANGE)
1237 const_eio (FALLOC_FL_UNSHARE_RANGE)
1238
1239 const_eio (RENAME_NOREPLACE)
1240 const_eio (RENAME_EXCHANGE)
1241 const_eio (RENAME_WHITEOUT)
1242
1243 const_eio (READDIR_DENTS)
1244 const_eio (READDIR_DIRS_FIRST)
1245 const_eio (READDIR_STAT_ORDER)
1246 const_eio (READDIR_FOUND_UNKNOWN)
1247
1248 const_eio (DT_UNKNOWN)
1249 const_eio (DT_FIFO)
1250 const_eio (DT_CHR)
1251 const_eio (DT_DIR)
1252 const_eio (DT_BLK)
1253 const_eio (DT_REG)
1254 const_eio (DT_LNK)
1255 const_eio (DT_SOCK)
1256 const_eio (DT_WHT)
1257 };
1258
1270 HV *stash = gv_stashpv ("IO::AIO", 1); 1259 aio_stash = gv_stashpv ("IO::AIO" , 1);
1260 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1261 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1262 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1271 1263
1272 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1264 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1273 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1265 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 1266
1280 create_pipe (); 1267 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1281 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1282}
1283 1268
1269 reinit ();
1270}
1271
1284void 1272void
1273reinit ()
1274 PROTOTYPE:
1275
1276void
1285max_poll_reqs (int nreqs) 1277max_poll_reqs (unsigned int nreqs)
1286 PROTOTYPE: $ 1278 PROTOTYPE: $
1287 CODE: 1279 CODE:
1288 max_poll_reqs = nreqs; 1280 eio_set_max_poll_reqs (nreqs);
1289 1281
1290void 1282void
1291max_poll_time (double nseconds) 1283max_poll_time (double nseconds)
1292 PROTOTYPE: $ 1284 PROTOTYPE: $
1293 CODE: 1285 CODE:
1294 max_poll_time = nseconds * AIO_TICKS; 1286 eio_set_max_poll_time (nseconds);
1295 1287
1296void 1288void
1297min_parallel (int nthreads) 1289min_parallel (unsigned int nthreads)
1298 PROTOTYPE: $
1299
1300void
1301max_parallel (int nthreads)
1302 PROTOTYPE: $
1303
1304void
1305max_idle (int nthreads)
1306 PROTOTYPE: $ 1290 PROTOTYPE: $
1307 CODE: 1291 CODE:
1308 set_max_idle (nthreads); 1292 eio_set_min_parallel (nthreads);
1309 1293
1310int 1294void
1311max_outstanding (int maxreqs) 1295max_parallel (unsigned int nthreads)
1312 PROTOTYPE: $ 1296 PROTOTYPE: $
1313 CODE: 1297 CODE:
1314 RETVAL = max_outstanding; 1298 eio_set_max_parallel (nthreads);
1299
1300void
1301max_idle (unsigned int nthreads)
1302 PROTOTYPE: $
1303 CODE:
1304 eio_set_max_idle (nthreads);
1305
1306void
1307idle_timeout (unsigned int seconds)
1308 PROTOTYPE: $
1309 CODE:
1310 eio_set_idle_timeout (seconds);
1311
1312void
1313max_outstanding (unsigned int maxreqs)
1314 PROTOTYPE: $
1315 CODE:
1315 max_outstanding = maxreqs; 1316 max_outstanding = maxreqs;
1316 OUTPUT:
1317 RETVAL
1318 1317
1319void 1318void
1320aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1319aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1321 SV8 * pathname
1322 int flags
1323 int mode
1324 SV * callback
1325 PROTOTYPE: $$$;$
1326 PPCODE: 1320 PPCODE:
1327{ 1321{
1328 dREQ; 1322 dREQ;
1329 1323
1324 req->type = EIO_WD_OPEN;
1325 req_set_path1 (req, pathname);
1326
1327 REQ_SEND;
1328}
1329
1330void
1331aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1332 PPCODE:
1333{
1334 dREQ;
1335
1330 req->type = REQ_OPEN; 1336 req->type = EIO_OPEN;
1331 req->sv1 = newSVsv (pathname); 1337 req_set_path1 (req, pathname);
1332 req->ptr1 = SvPVbyte_nolen (req->sv1);
1333 req->int1 = flags; 1338 req->int1 = flags;
1334 req->mode = mode; 1339 req->int2 = mode;
1335 1340
1336 REQ_SEND; 1341 REQ_SEND;
1337} 1342}
1338 1343
1339void 1344void
1340aio_close (fh,callback=&PL_sv_undef) 1345aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1341 SV * fh
1342 SV * callback
1343 PROTOTYPE: $;$
1344 ALIAS: 1346 ALIAS:
1345 aio_close = REQ_CLOSE
1346 aio_fsync = REQ_FSYNC 1347 aio_fsync = EIO_FSYNC
1347 aio_fdatasync = REQ_FDATASYNC 1348 aio_fdatasync = EIO_FDATASYNC
1349 aio_syncfs = EIO_SYNCFS
1348 PPCODE: 1350 PPCODE:
1349{ 1351{
1352 int fd = s_fileno_croak (fh, 0);
1350 dREQ; 1353 dREQ;
1351 1354
1352 req->type = ix; 1355 req->type = ix;
1353 req->fh = newSVsv (fh); 1356 req->sv1 = newSVsv (fh);
1354 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1357 req->int1 = fd;
1355 1358
1356 REQ_SEND (req); 1359 REQ_SEND;
1357} 1360}
1358 1361
1359void 1362void
1363aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1364 PPCODE:
1365{
1366 int fd = s_fileno_croak (fh, 0);
1367 dREQ;
1368
1369 req->type = EIO_SYNC_FILE_RANGE;
1370 req->sv1 = newSVsv (fh);
1371 req->int1 = fd;
1372 req->offs = offset;
1373 req->size = nbytes;
1374 req->int2 = flags;
1375
1376 REQ_SEND;
1377}
1378
1379void
1380aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1381 PPCODE:
1382{
1383 int fd = s_fileno_croak (fh, 0);
1384 dREQ;
1385
1386 req->type = EIO_FALLOCATE;
1387 req->sv1 = newSVsv (fh);
1388 req->int1 = fd;
1389 req->int2 = mode;
1390 req->offs = offset;
1391 req->size = len;
1392
1393 REQ_SEND;
1394}
1395
1396void
1397aio_close (SV *fh, SV *callback = &PL_sv_undef)
1398 PPCODE:
1399{
1400 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1401 int fd = s_fileno_croak (fh, 0);
1402 dREQ;
1403
1404 if (expect_false (close_fd < 0))
1405 {
1406 int pipefd [2];
1407
1408 if (
1409#ifdef _WIN32
1410 _pipe (pipefd, 1, _O_BINARY) < 0
1411#else
1412 pipe (pipefd) < 0
1413 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1414#endif
1415 || close (pipefd [1]) < 0
1416 )
1417 abort (); /*D*/
1418
1419 close_fd = pipefd [0];
1420 }
1421
1422 req->type = EIO_DUP2;
1423 req->int1 = close_fd;
1424 req->sv2 = newSVsv (fh);
1425 req->int2 = fd;
1426
1427 REQ_SEND;
1428}
1429
1430void
1431aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1432 PPCODE:
1433{
1434 int fd = s_fileno_croak (fh, 0);
1435 dREQ;
1436
1437 req->type = EIO_SEEK;
1438 req->sv1 = newSVsv (fh);
1439 req->int1 = fd;
1440 req->offs = SvVAL64 (offset);
1441 req->int2 = whence;
1442
1443 REQ_SEND;
1444}
1445
1446void
1360aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1447aio_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: 1448 ALIAS:
1368 aio_read = REQ_READ 1449 aio_read = EIO_READ
1369 aio_write = REQ_WRITE 1450 aio_write = EIO_WRITE
1370 PROTOTYPE: $$$$$;$
1371 PPCODE: 1451 PPCODE:
1372{ 1452{
1373 STRLEN svlen; 1453 STRLEN svlen;
1454 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1374 char *svptr = SvPVbyte (data, svlen); 1455 char *svptr = SvPVbyte (data, svlen);
1375 1456 UV len = SvUV (length);
1376 SvUPGRADE (data, SVt_PV);
1377 SvPOK_on (data);
1378 1457
1379 if (dataoffset < 0) 1458 if (dataoffset < 0)
1380 dataoffset += svlen; 1459 dataoffset += svlen;
1381 1460
1382 if (dataoffset < 0 || dataoffset > svlen) 1461 if (dataoffset < 0 || dataoffset > svlen)
1383 croak ("data offset outside of string"); 1462 croak ("dataoffset outside of data scalar");
1384 1463
1385 if (ix == REQ_WRITE) 1464 if (ix == EIO_WRITE)
1386 { 1465 {
1387 /* write: check length and adjust. */ 1466 /* write: check length and adjust. */
1388 if (length < 0 || length + dataoffset > svlen) 1467 if (!SvOK (length) || len + dataoffset > svlen)
1389 length = svlen - dataoffset; 1468 len = svlen - dataoffset;
1390 } 1469 }
1391 else 1470 else
1392 { 1471 {
1393 /* read: grow scalar as necessary */ 1472 /* read: check type and grow scalar as necessary */
1473 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1394 svptr = SvGROW (data, length + dataoffset + 1); 1474 svptr = sv_grow (data, len + dataoffset + 1);
1475 else if (SvCUR (data) < len + dataoffset)
1476 croak ("length + dataoffset outside of scalar, and cannot grow");
1395 } 1477 }
1396
1397 if (length < 0)
1398 croak ("length must not be negative");
1399 1478
1400 { 1479 {
1401 dREQ; 1480 dREQ;
1402 1481
1403 req->type = ix; 1482 req->type = ix;
1404 req->fh = newSVsv (fh); 1483 req->sv1 = newSVsv (fh);
1405 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1484 req->int1 = fd;
1406 : IoOFP (sv_2io (fh))); 1485 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1407 req->offs = offset;
1408 req->size = length; 1486 req->size = len;
1409 req->sv1 = SvREFCNT_inc (data); 1487 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr1 = (char *)svptr + dataoffset; 1488 req->ptr2 = (char *)svptr + dataoffset;
1411 req->stroffset = dataoffset; 1489 req->stroffset = dataoffset;
1412 1490
1413 if (!SvREADONLY (data)) 1491 if (!SvREADONLY (data))
1414 { 1492 {
1415 SvREADONLY_on (data); 1493 SvREADONLY_on (data);
1416 req->flags |= FLAG_SV1_RO_OFF; 1494 req->flags |= FLAG_SV2_RO_OFF;
1417 } 1495 }
1418 1496
1419 REQ_SEND; 1497 REQ_SEND;
1420 } 1498 }
1421} 1499}
1422 1500
1423void 1501void
1424aio_readlink (path,callback=&PL_sv_undef) 1502aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1425 SV8 * path 1503 ALIAS:
1426 SV * callback 1504 aio_ioctl = EIO_IOCTL
1427 PROTOTYPE: $$;$ 1505 aio_fcntl = EIO_FCNTL
1428 PPCODE: 1506 PPCODE:
1429{ 1507{
1430 SV *data; 1508 int fd = s_fileno_croak (fh, 0);
1509 char *svptr;
1510
1511 if (SvPOK (arg) || !SvNIOK (arg))
1512 {
1513 STRLEN svlen;
1514 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1515#ifdef IOCPARM_LEN
1516 STRLEN need = IOCPARM_LEN (request);
1517#else
1518 STRLEN need = 256;
1519#endif
1520
1521 if (svlen < need)
1522 svptr = SvGROW (arg, need);
1523 }
1524 else
1525 svptr = (char *)SvIV (arg);
1526
1527 {
1528 dREQ;
1529
1530 req->type = ix;
1531 req->sv1 = newSVsv (fh);
1532 req->int1 = fd;
1533 req->int2 = (long)request;
1534 req->sv2 = SvREFCNT_inc (arg);
1535 req->ptr2 = svptr;
1536
1537 REQ_SEND;
1538 }
1539}
1540
1541void
1542aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1543 ALIAS:
1544 aio_readlink = EIO_READLINK
1545 aio_realpath = EIO_REALPATH
1546 PPCODE:
1547{
1431 dREQ; 1548 dREQ;
1432 1549
1433 data = newSV (NAME_MAX);
1434 SvPOK_on (data);
1435
1436 req->type = REQ_READLINK; 1550 req->type = ix;
1437 req->fh = newSVsv (path); 1551 req_set_path1 (req, pathname);
1438 req->ptr2 = SvPVbyte_nolen (req->fh);
1439 req->sv1 = data;
1440 req->ptr1 = SvPVbyte_nolen (data);
1441 1552
1442 REQ_SEND; 1553 REQ_SEND;
1443} 1554}
1444 1555
1445void 1556void
1446aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1557aio_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: $$$$;$
1453 PPCODE: 1558 PPCODE:
1454{ 1559{
1560 int ifd = s_fileno_croak (in_fh , 0);
1561 int ofd = s_fileno_croak (out_fh, 1);
1455 dREQ; 1562 dREQ;
1456 1563
1457 req->type = REQ_SENDFILE; 1564 req->type = EIO_SENDFILE;
1458 req->fh = newSVsv (out_fh); 1565 req->sv1 = newSVsv (out_fh);
1459 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1566 req->int1 = ofd;
1460 req->sv2 = newSVsv (in_fh); 1567 req->sv2 = newSVsv (in_fh);
1461 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1568 req->int2 = ifd;
1462 req->offs = in_offset; 1569 req->offs = in_offset;
1463 req->size = length; 1570 req->size = length;
1464 1571
1465 REQ_SEND; 1572 REQ_SEND;
1466} 1573}
1467 1574
1468void 1575void
1469aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1576aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1470 SV * fh
1471 UV offset
1472 IV length
1473 SV * callback
1474 PROTOTYPE: $$$;$
1475 PPCODE: 1577 PPCODE:
1476{ 1578{
1579 int fd = s_fileno_croak (fh, 0);
1477 dREQ; 1580 dREQ;
1478 1581
1479 req->type = REQ_READAHEAD; 1582 req->type = EIO_READAHEAD;
1480 req->fh = newSVsv (fh); 1583 req->sv1 = newSVsv (fh);
1481 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1584 req->int1 = fd;
1482 req->offs = offset; 1585 req->offs = offset;
1483 req->size = length; 1586 req->size = length;
1484 1587
1485 REQ_SEND; 1588 REQ_SEND;
1486} 1589}
1487 1590
1488void 1591void
1489aio_stat (fh_or_path,callback=&PL_sv_undef) 1592aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1490 SV8 * fh_or_path
1491 SV * callback
1492 ALIAS: 1593 ALIAS:
1493 aio_stat = REQ_STAT 1594 aio_stat = EIO_STAT
1494 aio_lstat = REQ_LSTAT 1595 aio_lstat = EIO_LSTAT
1596 aio_statvfs = EIO_STATVFS
1495 PPCODE: 1597 PPCODE:
1496{ 1598{
1497 dREQ; 1599 dREQ;
1498 1600
1499 req->ptr2 = malloc (sizeof (Stat_t)); 1601 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 1602
1521 REQ_SEND; 1603 REQ_SEND;
1522} 1604}
1523 1605
1606UV
1607major (UV dev)
1608 ALIAS:
1609 minor = 1
1610 CODE:
1611 RETVAL = ix ? minor (dev) : major (dev);
1612 OUTPUT:
1613 RETVAL
1614
1615UV
1616makedev (UV maj, UV min)
1617 CODE:
1618 RETVAL = makedev (maj, min);
1619 OUTPUT:
1620 RETVAL
1621
1524void 1622void
1623aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1624 PPCODE:
1625{
1626 dREQ;
1627
1628 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1629 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1630 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1631
1632 REQ_SEND;
1633}
1634
1635void
1636aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1637 PPCODE:
1638{
1639 dREQ;
1640
1641 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1642 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1643
1644 REQ_SEND;
1645}
1646
1647void
1648aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1649 PPCODE:
1650{
1651 dREQ;
1652
1653 req->int2 = mode;
1654 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1655
1656 REQ_SEND;
1657}
1658
1659void
1660aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1661 PPCODE:
1662{
1663 dREQ;
1664
1665 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1666 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1667 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1668
1669 REQ_SEND;
1670}
1671
1672void
1673aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1674 PPCODE:
1675{
1676 dREQ;
1677
1678 req->type = EIO_READDIR;
1679 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1680
1681 if (flags & EIO_READDIR_DENTS)
1682 req->int1 |= EIO_READDIR_CUSTOM2;
1683
1684 req_set_path1 (req, pathname);
1685
1686 REQ_SEND;
1687}
1688
1689void
1690aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1691 PPCODE:
1692{
1693 dREQ;
1694
1695 req->type = EIO_MKDIR;
1696 req->int2 = mode;
1697 req_set_path1 (req, pathname);
1698
1699 REQ_SEND;
1700}
1701
1702void
1525aio_unlink (pathname,callback=&PL_sv_undef) 1703aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1526 SV8 * pathname
1527 SV * callback
1528 ALIAS: 1704 ALIAS:
1529 aio_unlink = REQ_UNLINK 1705 aio_unlink = EIO_UNLINK
1530 aio_rmdir = REQ_RMDIR 1706 aio_rmdir = EIO_RMDIR
1531 aio_readdir = REQ_READDIR 1707 aio_readdir = EIO_READDIR
1532 PPCODE: 1708 PPCODE:
1533{ 1709{
1534 dREQ; 1710 dREQ;
1535 1711
1536 req->type = ix; 1712 req->type = ix;
1537 req->sv1 = newSVsv (pathname); 1713 req_set_path1 (req, pathname);
1538 req->ptr1 = SvPVbyte_nolen (req->sv1);
1539 1714
1540 REQ_SEND; 1715 REQ_SEND;
1541} 1716}
1542 1717
1543void 1718void
1544aio_mkdir (pathname,mode,callback=&PL_sv_undef) 1719aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1545 SV8 * pathname 1720 ALIAS:
1546 UV mode 1721 aio_link = EIO_LINK
1547 SV * callback 1722 aio_symlink = EIO_SYMLINK
1723 aio_rename = EIO_RENAME
1548 PPCODE: 1724 PPCODE:
1549{ 1725{
1550 dREQ; 1726 eio_wd wd2 = 0;
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)
1562 SV8 * oldpath
1563 SV8 * newpath
1564 SV * callback
1565 ALIAS:
1566 aio_link = REQ_LINK
1567 aio_symlink = REQ_SYMLINK
1568 aio_rename = REQ_RENAME
1569 PPCODE:
1570{
1571 dREQ; 1727 dREQ;
1572 1728
1573 req->type = ix; 1729 req->type = ix;
1574 req->fh = newSVsv (oldpath); 1730 req_set_path1 (req, oldpath);
1575 req->ptr2 = SvPVbyte_nolen (req->fh); 1731 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1576 req->sv1 = newSVsv (newpath); 1732 req->int3 = (long)wd2;
1577 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 1733
1579 REQ_SEND; 1734 REQ_SEND;
1580} 1735}
1581 1736
1582void 1737void
1583aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1738aio_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: 1739 PPCODE:
1589{ 1740{
1741 eio_wd wd2 = 0;
1590 dREQ; 1742 dREQ;
1591 1743
1592 req->type = REQ_MKNOD; 1744 req->type = EIO_RENAME;
1593 req->sv1 = newSVsv (pathname); 1745 req_set_path1 (req, oldpath);
1594 req->ptr1 = SvPVbyte_nolen (req->sv1); 1746 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1595 req->mode = (mode_t)mode; 1747 req->int2 = flags;
1596 req->offs = dev; 1748 req->int3 = (long)wd2;
1597 1749
1598 REQ_SEND; 1750 REQ_SEND;
1599} 1751}
1600 1752
1601void 1753void
1602aio_busy (delay,callback=&PL_sv_undef) 1754aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1603 double delay
1604 SV * callback
1605 PPCODE: 1755 PPCODE:
1606{ 1756{
1607 dREQ; 1757 dREQ;
1608 1758
1609 req->type = REQ_BUSY; 1759 req->type = EIO_MKNOD;
1610 req->int1 = delay < 0. ? 0 : delay; 1760 req->int2 = (mode_t)mode;
1611 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1761 req->offs = dev;
1612 1762 req_set_path1 (req, pathname);
1763
1613 REQ_SEND; 1764 REQ_SEND;
1614} 1765}
1615 1766
1616void 1767void
1617aio_group (callback=&PL_sv_undef) 1768aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1618 SV * callback 1769 ALIAS:
1619 PROTOTYPE: ;$ 1770 aio_mtouch = EIO_MTOUCH
1771 aio_msync = EIO_MSYNC
1620 PPCODE: 1772 PPCODE:
1621{ 1773{
1774 STRLEN svlen;
1775 char *svptr = SvPVbyte (data, svlen);
1776 UV len = SvUV (length);
1777
1778 if (flags < 0)
1779 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1780
1781 if (offset < 0)
1782 offset += svlen;
1783
1784 if (offset < 0 || offset > svlen)
1785 croak ("offset outside of scalar");
1786
1787 if (!SvOK (length) || len + offset > svlen)
1788 len = svlen - offset;
1789
1790 {
1791 dREQ;
1792
1793 req->type = ix;
1794 req->sv2 = SvREFCNT_inc (data);
1795 req->ptr2 = (char *)svptr + offset;
1796 req->size = len;
1797 req->int1 = flags;
1798
1799 REQ_SEND;
1800 }
1801}
1802
1803void
1804aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1805 PPCODE:
1806{
1807 STRLEN svlen;
1808 char *svptr = SvPVbyte (data, svlen);
1809 UV len = SvUV (length);
1810
1811 if (offset < 0)
1812 offset += svlen;
1813
1814 if (offset < 0 || offset > svlen)
1815 croak ("offset outside of scalar");
1816
1817 if (!SvOK (length) || len + offset > svlen)
1818 len = svlen - offset;
1819
1820 {
1821 dREQ;
1822
1823 req->type = EIO_MLOCK;
1824 req->sv2 = SvREFCNT_inc (data);
1825 req->ptr2 = (char *)svptr + offset;
1826 req->size = len;
1827
1828 REQ_SEND;
1829 }
1830}
1831
1832void
1833aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1834 PPCODE:
1835{
1836 dREQ;
1837
1838 req->type = EIO_MLOCKALL;
1839 req->int1 = flags;
1840
1841 REQ_SEND;
1842}
1843
1844void
1845aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1846 PPCODE:
1847{
1848 int fd = s_fileno_croak (fh, 0);
1622 dREQ; 1849 dREQ;
1623 1850
1624 req->type = REQ_GROUP; 1851 req->type = EIO_CUSTOM;
1852 req->sv1 = newSVsv (fh);
1853 req->int1 = fd;
1625 1854
1626 req_send (req); 1855 req->feed = fiemap;
1627 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1856#if HAVE_FIEMAP
1628} 1857 /* keep our fingers crossed that the next two types are 64 bit */
1858 req->offs = start;
1859 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1860 req->int2 = flags;
1861 req->int3 = SvOK (count) ? SvIV (count) : -1;
1862#endif
1629 1863
1864 REQ_SEND;
1865}
1866
1630void 1867void
1631aio_nop (callback=&PL_sv_undef) 1868aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1632 SV * callback 1869 PPCODE:
1870{
1871 char *svptr = 0;
1872
1873 sv_clear_foreign (data);
1874
1875 if (length) /* known length, directly read into scalar */
1876 {
1877 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1878 svptr = sv_grow (data, length + 1);
1879 else if (SvCUR (data) < length)
1880 croak ("length outside of scalar, and cannot grow");
1881 else
1882 svptr = SvPVbyte_nolen (data);
1883 }
1884
1885 {
1886 dREQ;
1887
1888 req->type = EIO_SLURP;
1889 req_set_path1 (req, pathname);
1890 req->offs = offset;
1891 req->size = length;
1892 req->sv2 = SvREFCNT_inc (data);
1893 req->ptr2 = svptr;
1894
1895 if (!SvREADONLY (data))
1896 {
1897 SvREADONLY_on (data);
1898 req->flags |= FLAG_SV2_RO_OFF;
1899 }
1900
1901 REQ_SEND;
1902 }
1903}
1904
1905void
1906aio_busy (double delay, SV *callback = &PL_sv_undef)
1633 PPCODE: 1907 PPCODE:
1634{ 1908{
1635 dREQ; 1909 dREQ;
1636 1910
1637 req->type = REQ_NOP; 1911 req->type = EIO_BUSY;
1912 req->nv1 = delay < 0. ? 0. : delay;
1638 1913
1639 REQ_SEND; 1914 REQ_SEND;
1640} 1915}
1641 1916
1917void
1918aio_group (SV *callback = &PL_sv_undef)
1919 PPCODE:
1920{
1921 dREQ;
1922
1923 req->type = EIO_GROUP;
1924
1925 PUTBACK;
1926 req_submit (req);
1927 SPAGAIN;
1928
1929 XPUSHs (req_sv (req, aio_grp_stash));
1930}
1931
1932void
1933aio_nop (SV *callback = &PL_sv_undef)
1934 ALIAS:
1935 aio_nop = EIO_NOP
1936 aio_sync = EIO_SYNC
1937 PPCODE:
1938{
1939 dREQ;
1940
1941 req->type = ix;
1942
1943 REQ_SEND;
1944}
1945
1642int 1946int
1643aioreq_pri (int pri = 0) 1947aioreq_pri (int pri = NO_INIT)
1644 PROTOTYPE: ;$
1645 CODE: 1948 CODE:
1646 RETVAL = next_pri - PRI_BIAS; 1949 RETVAL = next_pri;
1647 if (items > 0) 1950 if (items > 0)
1648 { 1951 {
1649 if (pri < PRI_MIN) pri = PRI_MIN; 1952 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1650 if (pri > PRI_MAX) pri = PRI_MAX; 1953 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1651 next_pri = pri + PRI_BIAS; 1954 next_pri = pri;
1652 } 1955 }
1653 OUTPUT: 1956 OUTPUT:
1654 RETVAL 1957 RETVAL
1655 1958
1656void 1959void
1657aioreq_nice (int nice = 0) 1960aioreq_nice (int nice = 0)
1658 CODE: 1961 CODE:
1659 nice = next_pri - nice; 1962 nice = next_pri - nice;
1660 if (nice < PRI_MIN) nice = PRI_MIN; 1963 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1661 if (nice > PRI_MAX) nice = PRI_MAX; 1964 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1662 next_pri = nice + PRI_BIAS; 1965 next_pri = nice;
1663 1966
1664void 1967void
1665flush () 1968flush ()
1666 PROTOTYPE:
1667 CODE: 1969 CODE:
1668 while (nreqs) 1970 while (eio_nreqs ())
1669 { 1971 {
1670 poll_wait (); 1972 poll_wait ();
1671 poll_cb (); 1973 poll_cb ();
1672 } 1974 }
1673 1975
1674int 1976int
1675poll() 1977poll ()
1676 PROTOTYPE:
1677 CODE: 1978 CODE:
1678 poll_wait (); 1979 poll_wait ();
1679 RETVAL = poll_cb (); 1980 RETVAL = poll_cb ();
1680 OUTPUT: 1981 OUTPUT:
1681 RETVAL 1982 RETVAL
1682 1983
1683int 1984int
1684poll_fileno() 1985poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 1986 CODE:
1687 RETVAL = respipe [0]; 1987 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 1988 OUTPUT:
1689 RETVAL 1989 RETVAL
1690 1990
1691int 1991int
1692poll_cb(...) 1992poll_cb (...)
1693 PROTOTYPE: 1993 PROTOTYPE:
1694 CODE: 1994 CODE:
1695 RETVAL = poll_cb (); 1995 RETVAL = poll_cb ();
1696 OUTPUT: 1996 OUTPUT:
1697 RETVAL 1997 RETVAL
1698 1998
1699void 1999void
1700poll_wait() 2000poll_wait ()
1701 PROTOTYPE:
1702 CODE: 2001 CODE:
1703 poll_wait (); 2002 poll_wait ();
1704 2003
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 2004int
1743nreqs() 2005nreqs ()
1744 PROTOTYPE:
1745 CODE: 2006 CODE:
1746 RETVAL = nreqs; 2007 RETVAL = eio_nreqs ();
1747 OUTPUT: 2008 OUTPUT:
1748 RETVAL 2009 RETVAL
1749 2010
1750int 2011int
1751nready() 2012nready ()
1752 PROTOTYPE:
1753 CODE: 2013 CODE:
1754 RETVAL = get_nready (); 2014 RETVAL = eio_nready ();
1755 OUTPUT: 2015 OUTPUT:
1756 RETVAL 2016 RETVAL
1757 2017
1758int 2018int
1759npending() 2019npending ()
1760 PROTOTYPE:
1761 CODE: 2020 CODE:
1762 RETVAL = get_npending (); 2021 RETVAL = eio_npending ();
1763 OUTPUT: 2022 OUTPUT:
1764 RETVAL 2023 RETVAL
1765 2024
1766int 2025int
1767nthreads() 2026nthreads ()
1768 PROTOTYPE:
1769 CODE: 2027 CODE:
1770 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2028 RETVAL = eio_nthreads ();
1771 RETVAL = started;
1772 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1773 OUTPUT: 2029 OUTPUT:
1774 RETVAL 2030 RETVAL
1775 2031
2032int
2033fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2034 CODE:
2035 RETVAL = posix_fadvise (fh, offset, length, advice);
2036 OUTPUT:
2037 RETVAL
2038
2039IV
2040sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2041 CODE:
2042 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2043 OUTPUT:
2044 RETVAL
2045
2046void
2047mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2048 PPCODE:
2049 sv_clear_foreign (scalar);
2050{
2051 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2052 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2053 if (addr == (void *)-1)
2054 XSRETURN_NO;
2055
2056 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2057
2058 if (!(prot & PROT_WRITE))
2059 SvREADONLY_on (scalar);
2060
2061 XSRETURN_YES;
2062}
2063
2064void
2065munmap (SV *scalar)
2066 CODE:
2067 sv_clear_foreign (scalar);
2068
2069SV *
2070mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
2071 CODE:
2072{
2073 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2074 void *new;
2075
2076 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2077 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2078
2079 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2080
2081 RETVAL = &PL_sv_no;
2082
2083 if (new != (void *)-1)
2084 {
2085 RETVAL = new == (void *)mg->mg_ptr
2086 ? newSVpvn ("0 but true", 10)
2087 : &PL_sv_yes;
2088
2089 mg->mg_ptr = (char *)new;
2090 mg->mg_obj = (SV *)new_length;
2091
2092 SvPVX (scalar) = mg->mg_ptr;
2093 SvCUR_set (scalar, new_length);
2094 }
2095}
2096 OUTPUT:
2097 RETVAL
2098
2099int
2100madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2101 ALIAS:
2102 mprotect = 1
2103 CODE:
2104{
2105 STRLEN svlen;
2106 void *addr = SvPVbyte (scalar, svlen);
2107 STRLEN len = SvUV (length);
2108
2109 if (offset < 0)
2110 offset += svlen;
2111
2112 if (offset < 0 || offset > svlen)
2113 croak ("offset outside of scalar");
2114
2115 if (!SvOK (length) || len + offset > svlen)
2116 len = svlen - offset;
2117
2118 addr = (void *)(((intptr_t)addr) + offset);
2119 eio_page_align (&addr, &len);
2120
2121 switch (ix)
2122 {
2123 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2124 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2125 }
2126}
2127 OUTPUT:
2128 RETVAL
2129
2130int
2131munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2132 CODE:
2133{
2134 STRLEN svlen;
2135 void *addr = SvPVbyte (scalar, svlen);
2136 size_t len = SvUV (length);
2137
2138 if (offset < 0)
2139 offset += svlen;
2140
2141 if (offset < 0 || offset > svlen)
2142 croak ("offset outside of scalar");
2143
2144 if (!SvOK (length) || len + offset > svlen)
2145 len = svlen - offset;
2146
2147 addr = (void *)(((intptr_t)addr) + offset);
2148 eio_page_align (&addr, &len);
2149#if _POSIX_MEMLOCK_RANGE
2150 RETVAL = munlock (addr, len);
2151#else
2152 RETVAL = EIO_ENOSYS ();
2153#endif
2154}
2155 OUTPUT:
2156 RETVAL
2157
2158int
2159munlockall ()
2160 CODE:
2161#if _POSIX_MEMLOCK
2162 munlockall ();
2163#else
2164 RETVAL = EIO_ENOSYS ();
2165#endif
2166 OUTPUT:
2167 RETVAL
2168
2169int
2170splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2171 CODE:
2172{
2173#if HAVE_LINUX_SPLICE
2174 loff_t off_in_, off_out_;
2175 RETVAL = splice (
2176 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2177 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2178 length, flags
2179 );
2180#else
2181 RETVAL = EIO_ENOSYS ();
2182#endif
2183}
2184 OUTPUT:
2185 RETVAL
2186
2187int
2188tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2189 CODE:
2190#if HAVE_LINUX_SPLICE
2191 RETVAL = tee (rfh, wfh, length, flags);
2192#else
2193 RETVAL = EIO_ENOSYS ();
2194#endif
2195 OUTPUT:
2196 RETVAL
2197
2198int
2199pipesize (aio_rfd rfh, int new_size = -1)
2200 PROTOTYPE: $;$
2201 CODE:
2202#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2203 if (new_size >= 0)
2204 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2205 else
2206 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2207#else
2208 errno = ENOSYS;
2209 RETVAL = -1;
2210#endif
2211 OUTPUT:
2212 RETVAL
2213
2214void
2215pipe2 (int flags = 0)
2216 PROTOTYPE: ;$
2217 PPCODE:
2218{
2219 int fd[2];
2220 int res;
2221
2222 if (flags)
2223#if HAVE_PIPE2
2224 res = pipe2 (fd, flags);
2225#else
2226 res = (errno = ENOSYS, -1);
2227#endif
2228 else
2229 res = pipe (fd);
2230
2231 if (!res)
2232 {
2233 EXTEND (SP, 2);
2234 PUSHs (newmortalFH (fd[0], O_RDONLY));
2235 PUSHs (newmortalFH (fd[1], O_WRONLY));
2236 }
2237}
2238
2239void
2240eventfd (unsigned int initval = 0, int flags = 0)
2241 PPCODE:
2242{
2243 int fd;
2244#if HAVE_EVENTFD
2245 fd = eventfd (initval, flags);
2246#else
2247 fd = (errno = ENOSYS, -1);
2248#endif
2249
2250 XPUSHs (newmortalFH (fd, O_RDWR));
2251}
2252
2253void
2254timerfd_create (int clockid, int flags = 0)
2255 PPCODE:
2256{
2257 int fd;
2258#if HAVE_TIMERFD
2259 fd = timerfd_create (clockid, flags);
2260#else
2261 fd = (errno = ENOSYS, -1);
2262#endif
2263
2264 XPUSHs (newmortalFH (fd, O_RDWR));
2265}
2266
2267void
2268timerfd_settime (SV *fh, int flags, NV interval, NV value)
2269 PPCODE:
2270{
2271 int fd = s_fileno_croak (fh, 0);
2272#if HAVE_TIMERFD
2273 int res;
2274 struct itimerspec its, ots;
2275
2276 ts_set (&its.it_interval, interval);
2277 ts_set (&its.it_value , value);
2278 res = timerfd_settime (fd, flags, &its, &ots);
2279
2280 if (!res)
2281 {
2282 EXTEND (SP, 2);
2283 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2284 PUSHs (newSVnv (ts_get (&ots.it_value)));
2285 }
2286#else
2287 errno = ENOSYS;
2288#endif
2289}
2290
2291void
2292timerfd_gettime (SV *fh)
2293 PPCODE:
2294{
2295 int fd = s_fileno_croak (fh, 0);
2296#if HAVE_TIMERFD
2297 int res;
2298 struct itimerspec ots;
2299 res = timerfd_gettime (fd, &ots);
2300
2301 if (!res)
2302 {
2303 EXTEND (SP, 2);
2304 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2305 PUSHs (newSVnv (ts_get (&ots.it_value)));
2306 }
2307#else
2308 errno = ENOSYS;
2309#endif
2310}
2311
2312UV
2313get_fdlimit ()
2314 CODE:
2315#if HAVE_RLIMITS
2316 struct rlimit rl;
2317 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2318 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2319#endif
2320 XSRETURN_UNDEF;
2321 OUTPUT:
2322 RETVAL
2323
2324void
2325min_fdlimit (UV limit = 0x7fffffffU)
2326 CODE:
2327{
2328#if HAVE_RLIMITS
2329 struct rlimit rl;
2330 rlim_t orig_rlim_max;
2331 UV bit;
2332
2333 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2334 goto fail;
2335
2336 if (rl.rlim_cur == RLIM_INFINITY)
2337 XSRETURN_YES;
2338
2339 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2340
2341 if (rl.rlim_cur < limit)
2342 {
2343 rl.rlim_cur = limit;
2344
2345 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2346 rl.rlim_max = rl.rlim_cur;
2347 }
2348
2349 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2350 XSRETURN_YES;
2351
2352 if (errno == EPERM)
2353 {
2354 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2355 /* our limit overflows a system-wide limit */
2356 /* try an adaptive algorithm, but do not lower the hardlimit */
2357 rl.rlim_max = 0;
2358 for (bit = 0x40000000U; bit; bit >>= 1)
2359 {
2360 rl.rlim_max |= bit;
2361 rl.rlim_cur = rl.rlim_max;
2362
2363 /* nevr decrease the hard limit */
2364 if (rl.rlim_max < orig_rlim_max)
2365 break;
2366
2367 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2368 rl.rlim_max &= ~bit; /* too high, remove bit again */
2369 }
2370
2371 /* now, raise the soft limit to the max permitted */
2372 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2373 {
2374 rl.rlim_cur = rl.rlim_max;
2375 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2376 errno = EPERM;
2377 }
2378 }
2379#endif
2380 fail:
2381 XSRETURN_UNDEF;
2382}
2383
2384void _on_next_submit (SV *cb)
2385 CODE:
2386 SvREFCNT_dec (on_next_submit);
2387 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2388
1776PROTOTYPES: DISABLE 2389PROTOTYPES: DISABLE
2390
2391MODULE = IO::AIO PACKAGE = IO::AIO::WD
2392
2393BOOT:
2394{
2395 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2396 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2397}
2398
2399void
2400DESTROY (SV *self)
2401 CODE:
2402{
2403 aio_wd wd = SvAIO_WD (self);
2404#if HAVE_AT
2405 {
2406 SV *callback = &PL_sv_undef;
2407 dREQ; /* clobbers next_pri :/ */
2408 next_pri = req->pri; /* restore next_pri */
2409 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2410 req->type = EIO_WD_CLOSE;
2411 req->wd = wd;
2412 REQ_SEND;
2413 }
2414#else
2415 eio_wd_close_sync (wd);
2416#endif
2417}
1777 2418
1778MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2419MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1779 2420
1780void 2421void
1781cancel (aio_req_ornot req) 2422cancel (aio_req_ornot req)
1782 CODE: 2423 CODE:
1783 req_cancel (req); 2424 eio_cancel (req);
1784 2425
1785void 2426void
1786cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2427cb (aio_req_ornot req, SV *callback = NO_INIT)
1787 CODE: 2428 PPCODE:
2429{
2430 if (GIMME_V != G_VOID)
2431 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2432
2433 if (items > 1)
2434 {
2435 SV *cb_cv = get_cb (callback);
2436
1788 SvREFCNT_dec (req->callback); 2437 SvREFCNT_dec (req->callback);
1789 req->callback = newSVsv (callback); 2438 req->callback = SvREFCNT_inc (cb_cv);
2439 }
2440}
1790 2441
1791MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2442MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1792 2443
1793void 2444void
1794add (aio_req grp, ...) 2445add (aio_req grp, ...)
1795 PPCODE: 2446 PPCODE:
1796{ 2447{
1797 int i; 2448 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 2449
1803 if (grp->int1 == 2) 2450 if (grp->int1 == 2)
1804 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2451 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1805 2452
1806 for (i = 1; i < items; ++i ) 2453 for (i = 1; i < items; ++i )
1807 { 2454 {
2455 aio_req req;
2456
1808 if (GIMME_V != G_VOID) 2457 if (GIMME_V != G_VOID)
1809 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2458 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1810 2459
1811 req = SvAIO_REQ (ST (i)); 2460 req = SvAIO_REQ (ST (i));
1812 2461
1813 if (req) 2462 if (req)
1814 { 2463 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 } 2464 }
1827} 2465}
1828 2466
1829void 2467void
1830cancel_subs (aio_req_ornot req) 2468cancel_subs (aio_req_ornot req)
… …
1839 AV *av; 2477 AV *av;
1840 2478
1841 grp->errorno = errno; 2479 grp->errorno = errno;
1842 2480
1843 av = newAV (); 2481 av = newAV ();
2482 av_extend (av, items - 1);
1844 2483
1845 for (i = 1; i < items; ++i ) 2484 for (i = 1; i < items; ++i )
1846 av_push (av, newSVsv (ST (i))); 2485 av_push (av, newSVsv (ST (i)));
1847 2486
1848 SvREFCNT_dec (grp->sv1); 2487 SvREFCNT_dec (grp->sv1);
… …
1855 grp->errorno = errorno; 2494 grp->errorno = errorno;
1856 2495
1857void 2496void
1858limit (aio_req grp, int limit) 2497limit (aio_req grp, int limit)
1859 CODE: 2498 CODE:
1860 grp->int2 = limit; 2499 eio_grp_limit (grp, limit);
1861 aio_grp_feed (grp);
1862 2500
1863void 2501void
1864feed (aio_req grp, SV *callback=&PL_sv_undef) 2502feed (aio_req grp, SV *callback = &PL_sv_undef)
1865 CODE: 2503 CODE:
1866{ 2504{
1867 SvREFCNT_dec (grp->sv2); 2505 SvREFCNT_dec (grp->sv2);
1868 grp->sv2 = newSVsv (callback); 2506 grp->sv2 = newSVsv (callback);
2507 grp->feed = aio_grp_feed;
1869 2508
1870 if (grp->int2 <= 0) 2509 if (grp->int2 <= 0)
1871 grp->int2 = 2; 2510 grp->int2 = 2;
1872 2511
1873 aio_grp_feed (grp); 2512 eio_grp_limit (grp, grp->int2);
1874} 2513}
1875 2514

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