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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 1.254 by root, Tue Feb 20 05:23:47 2018 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8 8
9#include "autoconf/config.h" 9#include "schmorp.h"
10 10
11#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h> 12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
18#include <limits.h> 16#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 17#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 18#include <sched.h>
23 19
24#if HAVE_SENDFILE 20#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> 21# include <sys/mman.h>
30# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
31# include <sys/socket.h> 86 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "libeio/config.h"
110
111#if HAVE_EVENTFD
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#define FOREIGN_MAGIC PERL_MAGIC_ext
194
195static int ecb_cold
196mmap_free (pTHX_ SV *sv, MAGIC *mg)
197{
198 int old_errno = errno;
199 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
200 errno = old_errno;
201
202 mg->mg_obj = 0; /* just in case */
203
204 SvREADONLY_off (sv);
205
206 if (SvPVX (sv) != mg->mg_ptr)
207 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
208
209 SvCUR_set (sv, 0);
210 SvPVX (sv) = 0;
211 SvOK_off (sv);
212
56 return -1; 213 return 0;
214}
57 215
58typedef SV SV8; /* byte-sv, used for argument-checking */ 216static MGVTBL mmap_vtbl = {
59 217 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}; 218};
73 219
74#define AIO_REQ_KLASS "IO::AIO::REQ" 220static int ecb_cold
75#define AIO_GRP_KLASS "IO::AIO::GRP" 221sysfree_free (pTHX_ SV *sv, MAGIC *mg)
76
77typedef struct aio_cb
78{ 222{
79 struct aio_cb *volatile next; 223 free (mg->mg_ptr);
224 mg->mg_obj = 0; /* just in case */
80 225
81 SV *callback, *fh; 226 SvREADONLY_off (sv);
82 SV *sv1, *sv2;
83 void *ptr1, *ptr2;
84 off_t offs;
85 size_t size;
86 ssize_t result;
87 227
88 STRLEN stroffset; 228 if (SvPVX (sv) != mg->mg_ptr)
89 int type; 229 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
90 int int1, int2;
91 int errorno;
92 mode_t mode; /* open */
93 230
94 unsigned char flags; 231 SvCUR_set (sv, 0);
95 unsigned char pri; 232 SvPVX (sv) = 0;
233 SvOK_off (sv);
96 234
97 SV *self; /* the perl counterpart of this request, if any */ 235 return 0;
98 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 236}
99} aio_cb;
100 237
101enum { 238static MGVTBL sysfree_vtbl = {
102 FLAG_CANCELLED = 0x01, /* request was cancelled */ 239 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}; 240};
106 241
107typedef aio_cb *aio_req; 242/*****************************************************************************/
108typedef aio_cb *aio_req_ornot;
109 243
110enum { 244/* helper: set scalar to foreign ptr with custom free */
111 PRI_MIN = -4, 245static void
112 PRI_MAX = 4, 246sv_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{ 247{
127 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 248 sv_force_normal (sv);
128 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
129}
130 249
131static thread_t main_tid; 250 /* we store the length in mg_obj, as namlen is I32 :/ */
132static int main_sig; 251 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
133static int block_sig_level; 252 ->mg_obj = (SV *)length;
134 253
135void block_sig () 254 SvUPGRADE (sv, SVt_PV); /* nop... */
136{
137 sigset_t ss;
138 255
139 if (block_sig_level++) 256 if (SvLEN (sv))
257 Safefree (SvPVX (sv));
258
259 SvPVX (sv) = (char *)addr;
260 SvCUR_set (sv, length);
261 SvLEN_set (sv, 0);
262 SvPOK_only (sv);
263}
264
265static void
266sv_clear_foreign (SV *sv)
267{
268 /* todo: iterate over magic and only free ours, but of course */
269 /* the perl5porters will call that (correct) behaviour buggy */
270 sv_unmagic (sv, FOREIGN_MAGIC);
271}
272
273/*****************************************************************************/
274
275static void
276fiemap (eio_req *req)
277{
278 req->result = -1;
279
280#if HAVE_FIEMAP
281 /* assume some c99 */
282 struct fiemap *fiemap = 0;
283 size_t end_offset;
284 int count = req->int3;
285
286 req->flags |= EIO_FLAG_PTR1_FREE;
287
288 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
289 /* increase in 3.5kb steps */
290 if (count < 0)
291 count = 8;
292
293 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
294 errno = ENOMEM;
295 if (!fiemap)
140 return; 296 return;
141 297
142 if (!main_sig) 298 req->ptr1 = fiemap;
299
300 fiemap->fm_start = req->offs;
301 fiemap->fm_length = req->size;
302 fiemap->fm_flags = req->int2;
303 fiemap->fm_extent_count = count;
304
305 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
143 return; 306 return;
144 307
145 sigemptyset (&ss); 308 if (req->int3 >= 0 /* not autosizing */
146 sigaddset (&ss, main_sig); 309 || !fiemap->fm_mapped_extents /* no more extents */
147 pthread_sigmask (SIG_BLOCK, &ss, 0); 310 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
148} 311 goto done;
149 312
150void unblock_sig () 313 /* else we have to loop -
151{ 314 * it would be tempting (actually I tried that first) to just query the
152 sigset_t ss; 315 * number of extents needed, but linux often feels like not returning all
316 * extents, without telling us it left any out. this complicates
317 * this quite a bit.
318 */
153 319
154 if (--block_sig_level) 320 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
155 return;
156 321
157 if (!main_sig) 322 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 { 323 {
190 closedir (wrk->dirp); 324 /* 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; 325 char scratch[3072];
192 } 326 struct fiemap *incmap = (struct fiemap *)scratch;
193 327
194 if (wrk->dbuf) 328 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
195 { 329 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
196 free (wrk->dbuf); 330 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
197 wrk->dbuf = 0; 331 incmap->fm_flags = fiemap->fm_flags;
198 } 332 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
199}
200 333
201static void worker_free (worker *wrk) 334 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; 335 return;
296 336
297 --q->size; 337 if (!incmap->fm_mapped_extents)
338 goto done;
298 339
299 for (pri = NUM_PRI; pri--; ) 340 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
300 { 341 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
301 aio_req req = q->qs[pri]; 342 errno = ENOMEM;
302
303 if (req) 343 if (!fiemap)
344 return;
345
346 req->ptr1 = fiemap;
347
348 for (count = 0; count < incmap->fm_mapped_extents; ++count)
304 { 349 {
305 if (!(q->qs[pri] = req->next)) 350 struct fiemap_extent *e = incmap->fm_extents + count;
306 q->qe[pri] = 0;
307 351
308 return req; 352 if (e->fe_logical + e->fe_length >= end_offset)
353 goto done;
354
355 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
356
357 if (e->fe_flags & FIEMAP_EXTENT_LAST)
358 goto done;
359
309 } 360 }
310 } 361 }
311 362
312 abort (); 363done:
313} 364 req->result = 0;
314 365
315static int poll_cb (); 366#else
316static int req_invoke (aio_req req); 367 errno = ENOSYS;
368#endif
369}
370
371/*****************************************************************************/
372
373enum {
374 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
375};
376
377typedef eio_req *aio_req;
378typedef eio_req *aio_req_ornot;
379typedef eio_wd aio_wd;
380
381static SV *on_next_submit;
382static int next_pri = EIO_PRI_DEFAULT;
383static int max_outstanding;
384
385static s_epipe respipe;
386
317static void req_free (aio_req req); 387static void req_destroy (aio_req req);
318static void req_cancel (aio_req req); 388static void req_cancel (aio_req req);
319 389
390static void
391want_poll (void)
392{
393 /* write a dummy byte to the pipe so fh becomes ready */
394 s_epipe_signal (&respipe);
395}
396
397static void
398done_poll (void)
399{
400 /* read any signals sent by the worker threads */
401 s_epipe_drain (&respipe);
402}
403
320/* must be called at most once */ 404/* must be called at most once */
321static SV *req_sv (aio_req req, const char *klass) 405static SV *
406req_sv (aio_req req, HV *stash)
322{ 407{
323 if (!req->self) 408 if (!req->self)
324 { 409 {
325 req->self = (SV *)newHV (); 410 req->self = (SV *)newHV ();
326 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 411 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
327 } 412 }
328 413
329 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 414 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
330} 415}
331 416
332static aio_req SvAIO_REQ (SV *sv) 417static SV *
418newSVaio_wd (aio_wd wd)
419{
420 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
421}
422
423static aio_req
424SvAIO_REQ (SV *sv)
333{ 425{
334 MAGIC *mg; 426 MAGIC *mg;
335 427
336 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 428 if (!SvROK (sv)
429 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
430 || (SvSTASH (SvRV (sv)) != aio_grp_stash
431 && SvSTASH (SvRV (sv)) != aio_req_stash
432 && !sv_derived_from (sv, "IO::AIO::REQ")))
337 croak ("object of class " AIO_REQ_KLASS " expected"); 433 croak ("object of class IO::AIO::REQ expected");
338 434
339 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 435 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
340 436
341 return mg ? (aio_req)mg->mg_ptr : 0; 437 return mg ? (aio_req)mg->mg_ptr : 0;
342} 438}
343 439
440static aio_wd
441SvAIO_WD (SV *sv)
442{
443 if (!SvROK (sv)
444 || SvTYPE (SvRV (sv)) != SVt_PVMG
445 || SvSTASH (SvRV (sv)) != aio_wd_stash)
446 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
447
448 return (aio_wd)(long)SvIVX (SvRV (sv));
449}
450
451static SV *
452newmortalFH (int fd, int flags)
453{
454 if (fd < 0)
455 return &PL_sv_undef;
456
457 GV *gv = (GV *)sv_newmortal ();
458 char sym[64];
459 int symlen;
460
461 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
462 gv_init (gv, aio_stash, sym, symlen, 0);
463
464 symlen = snprintf (
465 sym,
466 sizeof (sym),
467 "%s&=%d",
468 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
469 fd
470 );
471
472 return do_open (gv, sym, symlen, 0, 0, 0, 0)
473 ? (SV *)gv : &PL_sv_undef;
474}
475
476static void
344static void aio_grp_feed (aio_req grp) 477aio_grp_feed (aio_req grp)
345{ 478{
346 block_sig (); 479 if (grp->sv2 && SvOK (grp->sv2))
347
348 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
349 { 480 {
350 int old_len = grp->size;
351
352 if (grp->sv2 && SvOK (grp->sv2))
353 {
354 dSP; 481 dSP;
355 482
356 ENTER; 483 ENTER;
357 SAVETMPS; 484 SAVETMPS;
358 PUSHMARK (SP); 485 PUSHMARK (SP);
359 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 486 XPUSHs (req_sv (grp, aio_grp_stash));
360 PUTBACK; 487 PUTBACK;
361 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 488 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
362 SPAGAIN; 489 SPAGAIN;
363 FREETMPS; 490 FREETMPS;
364 LEAVE; 491 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 } 492 }
375
376 unblock_sig ();
377} 493}
378 494
379static void aio_grp_dec (aio_req grp) 495static void
496req_submit (eio_req *req)
380{ 497{
381 --grp->size; 498 eio_submit (req);
382 499
383 /* call feeder, if applicable */ 500 if (expect_false (on_next_submit))
384 aio_grp_feed (grp);
385
386 /* finish, if done */
387 if (!grp->size && grp->int1)
388 { 501 {
389 block_sig (); 502 dSP;
503 SV *cb = sv_2mortal (on_next_submit);
390 504
391 if (!req_invoke (grp)) 505 on_next_submit = 0;
392 {
393 req_free (grp);
394 unblock_sig ();
395 croak (0);
396 }
397 506
398 req_free (grp); 507 PUSHMARK (SP);
399 unblock_sig (); 508 PUTBACK;
509 call_sv (cb, G_DISCARD | G_EVAL);
400 } 510 }
401} 511}
402 512
513static int
403static int req_invoke (aio_req req) 514req_invoke (eio_req *req)
404{ 515{
405 dSP;
406
407 if (req->flags & FLAG_SV1_RO_OFF) 516 if (req->flags & FLAG_SV2_RO_OFF)
408 SvREADONLY_off (req->sv1); 517 SvREADONLY_off (req->sv2);
409 518
410 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 519 if (!EIO_CANCELLED (req) && req->callback)
411 { 520 {
521 dSP;
522 static SV *sv_result_cache; /* caches the result integer SV */
523 SV *sv_result;
524
412 ENTER; 525 ENTER;
413 SAVETMPS; 526 SAVETMPS;
414 PUSHMARK (SP); 527 PUSHMARK (SP);
415 EXTEND (SP, 1); 528 EXTEND (SP, 1);
416 529
530 /* do not recreate the result IV from scratch each time */
531 if (expect_true (sv_result_cache))
532 {
533 sv_result = sv_result_cache; sv_result_cache = 0;
534 SvIV_set (sv_result, req->result);
535 SvIOK_only (sv_result);
536 }
537 else
538 {
539 sv_result = newSViv (req->result);
540 SvREADONLY_on (sv_result);
541 }
542
417 switch (req->type) 543 switch (req->type)
418 { 544 {
545 case EIO_WD_OPEN:
546 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
547 break;
548
419 case REQ_READDIR: 549 case EIO_READDIR:
420 { 550 {
421 SV *rv = &PL_sv_undef; 551 SV *rv = &PL_sv_undef;
422 552
423 if (req->result >= 0) 553 if (req->result >= 0)
424 { 554 {
425 int i; 555 int i;
426 char *buf = req->ptr2; 556 char *names = (char *)req->ptr2;
557 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
427 AV *av = newAV (); 558 AV *av = newAV ();
428 559
429 av_extend (av, req->result - 1); 560 av_extend (av, req->result - 1);
430 561
431 for (i = 0; i < req->result; ++i) 562 for (i = 0; i < req->result; ++i)
432 { 563 {
433 SV *sv = newSVpv (buf, 0); 564 if (req->int1 & EIO_READDIR_DENTS)
565 {
566 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
434 567
568 if (req->int1 & EIO_READDIR_CUSTOM2)
569 {
570 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
571 AV *avent = newAV ();
572
573 av_extend (avent, 2);
574
575 if (!sv_type [ent->type])
576 {
577 sv_type [ent->type] = newSViv (ent->type);
578 SvREADONLY_on (sv_type [ent->type]);
579 }
580
581 av_store (avent, 0, namesv);
582 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
583 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
584
585 av_store (av, i, newRV_noinc ((SV *)avent));
586 }
587 else
435 av_store (av, i, sv); 588 av_store (av, i, namesv);
589
590 ++ent;
591 }
592 else
593 {
594 SV *name = newSVpv (names, 0);
595 av_store (av, i, name);
436 buf += SvCUR (sv) + 1; 596 names += SvCUR (name) + 1;
597 }
437 } 598 }
438 599
439 rv = sv_2mortal (newRV_noinc ((SV *)av)); 600 rv = sv_2mortal (newRV_noinc ((SV *)av));
440 } 601 }
441 602
442 PUSHs (rv); 603 PUSHs (rv);
604
605 if (req->int1 & EIO_READDIR_CUSTOM1)
606 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
443 } 607 }
444 break; 608 break;
445 609
446 case REQ_OPEN: 610 case EIO_OPEN:
611 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
612 break;
613
614 case EIO_STATVFS:
615 case EIO_FSTATVFS:
447 { 616 {
448 /* convert fd to fh */ 617 SV *rv = &PL_sv_undef;
449 SV *fh; 618
619#ifndef _WIN32
620 if (req->result >= 0)
621 {
622 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
623 HV *hv = newHV ();
624 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
625 * chooses to make it a struct.
626 */
627 unsigned long fsid = 0;
628 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
450 629
451 PUSHs (sv_2mortal (newSViv (req->result))); 630 rv = sv_2mortal (newRV_noinc ((SV *)hv));
452 PUTBACK;
453 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
454 SPAGAIN;
455 631
456 fh = POPs; 632 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
457 PUSHMARK (SP); 633 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
634 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
635 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
636 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
637 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
638 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
639 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
640 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
641 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
642 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
643 }
644#endif
645
458 XPUSHs (fh); 646 PUSHs (rv);
459 } 647 }
648
460 break; 649 break;
461 650
462 case REQ_GROUP: 651 case EIO_GROUP:
463 req->int1 = 2; /* mark group as finished */ 652 req->int1 = 2; /* mark group as finished */
464 653
465 if (req->sv1) 654 if (req->sv1)
466 { 655 {
467 int i; 656 int i;
… …
471 for (i = 0; i <= AvFILL (av); ++i) 660 for (i = 0; i <= AvFILL (av); ++i)
472 PUSHs (*av_fetch (av, i, 0)); 661 PUSHs (*av_fetch (av, i, 0));
473 } 662 }
474 break; 663 break;
475 664
476 case REQ_NOP: 665 case EIO_NOP:
477 case REQ_BUSY: 666 case EIO_BUSY:
478 break; 667 break;
479 668
480 case REQ_READLINK: 669 case EIO_READLINK:
670 case EIO_REALPATH:
481 if (req->result > 0) 671 if (req->result > 0)
672 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
673 break;
674
675 case EIO_STAT:
676 case EIO_LSTAT:
677 case EIO_FSTAT:
678 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
679
680 if (!(PL_laststatval = req->result))
681 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
682 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
683
684 PUSHs (sv_result);
685 break;
686
687 case EIO_SEEK:
688 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
689 break;
690
691 case EIO_READ:
692 {
693 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
694 *SvEND (req->sv2) = 0;
695 SvPOK_only (req->sv2);
696 SvSETMAGIC (req->sv2);
697 PUSHs (sv_result);
698 }
699 break;
700
701 case EIO_SLURP:
702 {
703 if (req->result >= 0)
704 {
705 /* if length was originally not known, we steal the malloc'ed memory */
706 if (req->flags & EIO_FLAG_PTR2_FREE)
707 {
708 req->flags &= ~EIO_FLAG_PTR2_FREE;
709 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
710 }
711 else
712 {
713 SvCUR_set (req->sv2, req->result);
714 *SvEND (req->sv2) = 0;
715 SvPOK_only (req->sv2);
716 }
717
718 SvSETMAGIC (req->sv2);
719 }
720
721 PUSHs (sv_result);
722 }
723 break;
724
725 case EIO_CUSTOM:
726 if (req->feed == fiemap)
482 { 727 {
483 SvCUR_set (req->sv1, req->result); 728#if HAVE_FIEMAP
484 *SvEND (req->sv1) = 0;
485 PUSHs (req->sv1); 729 if (!req->result)
730 {
731 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
732
733 if (fiemap->fm_extent_count)
734 {
735 AV *av = newAV ();
736 int i;
737
738 while (fiemap->fm_mapped_extents)
739 {
740 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
741 AV *ext_av = newAV ();
742
743 av_store (ext_av, 3, newSVuv (extent->fe_flags));
744 av_store (ext_av, 2, newSVval64 (extent->fe_length));
745 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
746 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
747
748 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
749 }
750
751 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
752 }
753 else
754 {
755 SvIV_set (sv_result, fiemap->fm_mapped_extents);
756 PUSHs (sv_result);
757 }
758 }
759#endif
486 } 760 }
761 else
762 PUSHs (sv_result);
487 break; 763 break;
488 764
489 case REQ_STAT: 765 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
490 case REQ_LSTAT: 766 if (req->result > 0)
491 case REQ_FSTAT: 767 SvIV_set (sv_result, 0);
492 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 768 /* 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;
503 769
504 default: 770 default:
505 PUSHs (sv_2mortal (newSViv (req->result))); 771 PUSHs (sv_result);
506 break; 772 break;
507 } 773 }
508 774
509 errno = req->errorno; 775 errno = req->errorno;
510 776
511 PUTBACK; 777 PUTBACK;
512 call_sv (req->callback, G_VOID | G_EVAL); 778 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
513 SPAGAIN; 779 SPAGAIN;
780
781 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
782 SvREFCNT_dec (sv_result);
783 else
784 sv_result_cache = sv_result;
514 785
515 FREETMPS; 786 FREETMPS;
516 LEAVE; 787 LEAVE;
788
789 PUTBACK;
517 } 790 }
518 791
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); 792 return !!SvTRUE (ERRSV);
534} 793}
535 794
536static void req_free (aio_req req) 795static void
796req_destroy (aio_req req)
537{ 797{
538 if (req->self) 798 if (req->self)
539 { 799 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 800 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 801 SvREFCNT_dec (req->self);
542 } 802 }
543 803
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 804 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 805 SvREFCNT_dec (req->sv2);
806 SvREFCNT_dec (req->sv3);
807 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 808 SvREFCNT_dec (req->callback);
548 809
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 810 free (req);
553} 811}
554 812
813static void
555static void req_cancel_subs (aio_req grp) 814req_cancel_subs (aio_req grp)
556{ 815{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 816 if (grp->type != EIO_GROUP)
560 return; 817 return;
561 818
562 SvREFCNT_dec (grp->sv2); 819 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 820 grp->sv2 = 0;
564 821
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 822 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 823}
568 824
569static void req_cancel (aio_req req) 825static void ecb_cold
826create_respipe (void)
570{ 827{
571 req->flags |= FLAG_CANCELLED; 828 if (s_epipe_renew (&respipe))
572 829 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 830}
575 831
576static void *aio_proc(void *arg); 832static void
577 833poll_wait (void)
578static void start_thread (void)
579{ 834{
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) 835 while (eio_nreqs ())
676 { 836 {
677 int size; 837 int size;
678 if (WORDACCESS_UNSAFE) LOCK (reslock); 838
839 X_LOCK (EIO_POOL->reslock);
679 size = res_queue.size; 840 size = EIO_POOL->res_queue.size;
680 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 841 X_UNLOCK (EIO_POOL->reslock);
681 842
682 if (size) 843 if (size)
683 return; 844 return;
684 845
685 maybe_start_thread (); 846 etp_maybe_start_thread (EIO_POOL);
686 847
687 FD_ZERO(&rfd); 848 s_epipe_wait (&respipe);
688 FD_SET(respipe [0], &rfd);
689
690 select (respipe [0] + 1, &rfd, 0, 0, 0);
691 } 849 }
692} 850}
693 851
694static int poll_cb () 852static int
853poll_cb (void)
695{ 854{
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 (;;) 855 for (;;)
709 { 856 {
710 for (;;) 857 int res = eio_poll ();
858
859 if (res > 0)
860 croak (0);
861
862 if (!max_outstanding || max_outstanding > eio_nreqs ())
863 return res;
864
865 poll_wait ();
866 }
867}
868
869static void ecb_cold
870reinit (void)
871{
872 create_respipe ();
873
874 if (eio_init (want_poll, done_poll) < 0)
875 croak ("IO::AIO: unable to initialise eio library");
876}
877
878/*****************************************************************************/
879
880static SV *
881get_cb (SV *cb_sv)
882{
883 SvGETMAGIC (cb_sv);
884 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
885}
886
887static aio_req ecb_noinline
888dreq (SV *callback)
889{
890 SV *cb_cv;
891 aio_req req;
892 int req_pri = next_pri;
893 next_pri = EIO_PRI_DEFAULT;
894
895 cb_cv = get_cb (callback);
896
897 req = calloc (sizeof (*req), 1);
898 if (!req)
899 croak ("out of memory during eio_req allocation");
900
901 req->callback = SvREFCNT_inc (cb_cv);
902 req->pri = req_pri;
903
904 return req;
905}
906
907#define dREQ \
908 aio_req req = dreq (callback); \
909
910#define REQ_SEND \
911 PUTBACK; \
912 req_submit (req); \
913 SPAGAIN; \
914 \
915 if (GIMME_V != G_VOID) \
916 XPUSHs (req_sv (req, aio_req_stash));
917
918ecb_inline void
919req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
920{
921 if (expect_false (SvROK (path)))
922 {
923 SV *rv = SvRV (path);
924 SV *wdob;
925
926 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
711 { 927 {
712 maybe_start_thread (); 928 path = AvARRAY (rv)[1];
929 wdob = AvARRAY (rv)[0];
713 930
714 LOCK (reslock); 931 if (SvOK (wdob))
715 req = reqq_shift (&res_queue);
716
717 if (req)
718 { 932 {
719 --npending; 933 *wd = SvAIO_WD (wdob);
720 934 *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 } 935 }
742 else 936 else
743 { 937 *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 } 938 }
939 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
940 {
941 *wd = (aio_wd)(long)SvIVX (rv);
942 *wdsv = SvREFCNT_inc_NN (rv);
943 *ptr = ".";
944 return; /* path set to "." */
945 }
946 else
947 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
948 }
767 949
768 if (nreqs <= max_outstanding) 950 *pathsv = newSVsv (path);
951 *ptr = SvPVbyte_nolen (*pathsv);
952}
953
954static void ecb_noinline
955req_set_path1 (aio_req req, SV *path)
956{
957 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
958}
959
960static void ecb_noinline
961req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
962{
963 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
964
965 switch (SvTYPE (rv))
966 {
967 case SVt_PVIO:
968 case SVt_PVLV:
969 case SVt_PVGV:
970 req->type = type_fh;
971 req->sv1 = newSVsv (fh_or_path);
972 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
769 break; 973 break;
770 974
771 poll_wait (); 975 default:
772 976 req->type = type_path;
773 ++maxreqs; 977 req_set_path1 (req, fh_or_path);
978 break;
774 } 979 }
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} 980}
791 981
792/*****************************************************************************/ 982/*****************************************************************************/
793/* work around various missing functions */
794 983
795#if !HAVE_PREADWRITE 984static void
796# define pread aio_pread 985ts_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{ 986{
808 ssize_t res; 987 ts->tv_sec = value;
809 off_t ooffset; 988 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} 989}
820 990
821static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 991static NV
992ts_get (const struct timespec *ts)
822{ 993{
823 ssize_t res; 994 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} 995}
1046 996
1047/*****************************************************************************/ 997/*****************************************************************************/
1048 998
1049static void *aio_proc (void *thr_arg) 999XS(boot_IO__AIO) ecb_cold;
1050{
1051 aio_req req;
1052 struct timespec ts;
1053 worker *self = (worker *)thr_arg;
1054 1000
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 1001MODULE = IO::AIO PACKAGE = IO::AIO
1265 1002
1266PROTOTYPES: ENABLE 1003PROTOTYPES: ENABLE
1267 1004
1268BOOT: 1005BOOT:
1269{ 1006{
1007 static const struct {
1008 const char *name;
1009 IV iv;
1010 } *civ, const_iv[] = {
1011# define const_niv(name, value) { # name, (IV) value },
1012# define const_iv(name) { # name, (IV) name },
1013# define const_eio(name) { # name, (IV) EIO_ ## name },
1014
1015 /* you have to re-run ./gendef0 after adding/removing any constants here */
1016 /* the first block can be undef if missing */
1017 const_iv (ENOSYS)
1018 const_iv (EXDEV)
1019 const_iv (EBADR)
1020
1021 /* for lseek */
1022 const_iv (SEEK_DATA)
1023 const_iv (SEEK_HOLE)
1024
1025 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1026 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1027 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1028 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1029 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1030 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1031
1032 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1033 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1034 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1035 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1036 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1037
1038 /* the second block will be 0 when missing */
1039 const_iv (O_RDONLY)
1040 const_iv (O_WRONLY)
1041 const_iv (O_RDWR)
1042 const_iv (O_CREAT)
1043 const_iv (O_TRUNC)
1044 const_iv (O_EXCL)
1045 const_iv (O_APPEND)
1046
1047 const_iv (O_ASYNC)
1048 const_iv (O_DIRECT)
1049 const_iv (O_NOATIME)
1050
1051 const_iv (O_CLOEXEC)
1052 const_iv (O_NOCTTY)
1053 const_iv (O_NOFOLLOW)
1054 const_iv (O_NONBLOCK)
1055 const_iv (O_EXEC)
1056 const_iv (O_SEARCH)
1057 const_iv (O_DIRECTORY)
1058 const_iv (O_DSYNC)
1059 const_iv (O_RSYNC)
1060 const_iv (O_SYNC)
1061 const_iv (O_PATH)
1062 const_iv (O_TMPFILE)
1063 const_iv (O_TTY_INIT)
1064
1065 const_iv (S_IFIFO)
1066 const_iv (S_IFCHR)
1067 const_iv (S_IFBLK)
1068 const_iv (S_IFLNK)
1069 const_iv (S_IFREG)
1070 const_iv (S_IFDIR)
1071 const_iv (S_IFWHT)
1072 const_iv (S_IFSOCK)
1073 const_iv (S_IFMT)
1074
1075 const_iv (ST_RDONLY)
1076 const_iv (ST_NOSUID)
1077 const_iv (ST_NODEV)
1078 const_iv (ST_NOEXEC)
1079 const_iv (ST_SYNCHRONOUS)
1080 const_iv (ST_MANDLOCK)
1081 const_iv (ST_WRITE)
1082 const_iv (ST_APPEND)
1083 const_iv (ST_IMMUTABLE)
1084 const_iv (ST_NOATIME)
1085 const_iv (ST_NODIRATIME)
1086 const_iv (ST_RELATIME)
1087
1088 const_iv (PROT_NONE)
1089 const_iv (PROT_EXEC)
1090 const_iv (PROT_READ)
1091 const_iv (PROT_WRITE)
1092
1093 const_iv (MAP_PRIVATE)
1094 const_iv (MAP_SHARED)
1095 const_iv (MAP_FIXED)
1096 const_iv (MAP_ANONYMOUS)
1097
1098 /* linuxish */
1099 const_iv (MAP_LOCKED)
1100 const_iv (MAP_NORESERVE)
1101 const_iv (MAP_POPULATE)
1102 const_iv (MAP_NONBLOCK)
1103 const_iv (MAP_GROWSDOWN)
1104 const_iv (MAP_32BIT)
1105 const_iv (MAP_HUGETLB)
1106 const_iv (MAP_STACK)
1107
1108 const_iv (F_DUPFD_CLOEXEC)
1109
1110 const_iv (F_OFD_GETLK)
1111 const_iv (F_OFD_SETLK)
1112 const_iv (F_OFD_GETLKW)
1113
1114 const_iv (FIFREEZE)
1115 const_iv (FITHAW)
1116 const_iv (FITRIM)
1117 const_iv (FICLONE)
1118 const_iv (FICLONERANGE)
1119 const_iv (FIDEDUPERANGE)
1120
1121 const_iv (FS_IOC_GETFLAGS)
1122 const_iv (FS_IOC_SETFLAGS)
1123 const_iv (FS_IOC_GETVERSION)
1124 const_iv (FS_IOC_SETVERSION)
1125 const_iv (FS_IOC_FIEMAP)
1126 const_iv (FS_IOC_FSGETXATTR)
1127 const_iv (FS_IOC_FSSETXATTR)
1128 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1129 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1130 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1131
1132 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1133
1134 const_iv (FS_SECRM_FL)
1135 const_iv (FS_UNRM_FL)
1136 const_iv (FS_COMPR_FL)
1137 const_iv (FS_SYNC_FL)
1138 const_iv (FS_IMMUTABLE_FL)
1139 const_iv (FS_APPEND_FL)
1140 const_iv (FS_NODUMP_FL)
1141 const_iv (FS_NOATIME_FL)
1142 const_iv (FS_DIRTY_FL)
1143 const_iv (FS_COMPRBLK_FL)
1144 const_iv (FS_NOCOMP_FL)
1145 const_iv (FS_ENCRYPT_FL)
1146 const_iv (FS_BTREE_FL)
1147 const_iv (FS_INDEX_FL)
1148 const_iv (FS_JOURNAL_DATA_FL)
1149 const_iv (FS_NOTAIL_FL)
1150 const_iv (FS_DIRSYNC_FL)
1151 const_iv (FS_TOPDIR_FL)
1152 const_iv (FS_FL_USER_MODIFIABLE)
1153
1154 const_iv (FS_XFLAG_REALTIME)
1155 const_iv (FS_XFLAG_PREALLOC)
1156 const_iv (FS_XFLAG_IMMUTABLE)
1157 const_iv (FS_XFLAG_APPEND)
1158 const_iv (FS_XFLAG_SYNC)
1159 const_iv (FS_XFLAG_NOATIME)
1160 const_iv (FS_XFLAG_NODUMP)
1161 const_iv (FS_XFLAG_RTINHERIT)
1162 const_iv (FS_XFLAG_PROJINHERIT)
1163 const_iv (FS_XFLAG_NOSYMLINKS)
1164 const_iv (FS_XFLAG_EXTSIZE)
1165 const_iv (FS_XFLAG_EXTSZINHERIT)
1166 const_iv (FS_XFLAG_NODEFRAG)
1167 const_iv (FS_XFLAG_FILESTREAM)
1168 const_iv (FS_XFLAG_DAX)
1169 const_iv (FS_XFLAG_HASATTR)
1170
1171 const_iv (FIEMAP_FLAG_SYNC)
1172 const_iv (FIEMAP_FLAG_XATTR)
1173 const_iv (FIEMAP_FLAGS_COMPAT)
1174 const_iv (FIEMAP_EXTENT_LAST)
1175 const_iv (FIEMAP_EXTENT_UNKNOWN)
1176 const_iv (FIEMAP_EXTENT_DELALLOC)
1177 const_iv (FIEMAP_EXTENT_ENCODED)
1178 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1179 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1180 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1181 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1182 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1183 const_iv (FIEMAP_EXTENT_MERGED)
1184 const_iv (FIEMAP_EXTENT_SHARED)
1185
1186 const_iv (SPLICE_F_MOVE)
1187 const_iv (SPLICE_F_NONBLOCK)
1188 const_iv (SPLICE_F_MORE)
1189 const_iv (SPLICE_F_GIFT)
1190
1191 const_iv (EFD_CLOEXEC)
1192 const_iv (EFD_NONBLOCK)
1193 const_iv (EFD_SEMAPHORE)
1194
1195 const_iv (CLOCK_REALTIME)
1196 const_iv (CLOCK_MONOTONIC)
1197 const_iv (CLOCK_BOOTTIME)
1198 const_iv (CLOCK_REALTIME_ALARM)
1199 const_iv (CLOCK_BOOTTIME_ALARM)
1200
1201 const_iv (TFD_NONBLOCK)
1202 const_iv (TFD_CLOEXEC)
1203
1204 const_iv (TFD_TIMER_ABSTIME)
1205 const_iv (TFD_TIMER_CANCEL_ON_SET)
1206
1207 /* these are libeio constants, and are independent of gendef0 */
1208 const_eio (SEEK_SET)
1209 const_eio (SEEK_CUR)
1210 const_eio (SEEK_END)
1211
1212 const_eio (MCL_FUTURE)
1213 const_eio (MCL_CURRENT)
1214
1215 const_eio (MS_ASYNC)
1216 const_eio (MS_INVALIDATE)
1217 const_eio (MS_SYNC)
1218
1219 const_eio (MT_MODIFY)
1220
1221 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1222 const_eio (SYNC_FILE_RANGE_WRITE)
1223 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1224
1225 const_eio (FALLOC_FL_KEEP_SIZE)
1226 const_eio (FALLOC_FL_PUNCH_HOLE)
1227 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1228 const_eio (FALLOC_FL_ZERO_RANGE)
1229 const_eio (FALLOC_FL_INSERT_RANGE)
1230 const_eio (FALLOC_FL_UNSHARE_RANGE)
1231
1232 const_eio (RENAME_NOREPLACE)
1233 const_eio (RENAME_EXCHANGE)
1234 const_eio (RENAME_WHITEOUT)
1235
1236 const_eio (READDIR_DENTS)
1237 const_eio (READDIR_DIRS_FIRST)
1238 const_eio (READDIR_STAT_ORDER)
1239 const_eio (READDIR_FOUND_UNKNOWN)
1240
1241 const_eio (DT_UNKNOWN)
1242 const_eio (DT_FIFO)
1243 const_eio (DT_CHR)
1244 const_eio (DT_DIR)
1245 const_eio (DT_BLK)
1246 const_eio (DT_REG)
1247 const_eio (DT_LNK)
1248 const_eio (DT_SOCK)
1249 const_eio (DT_WHT)
1250 };
1251
1270 HV *stash = gv_stashpv ("IO::AIO", 1); 1252 aio_stash = gv_stashpv ("IO::AIO" , 1);
1253 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1254 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1255 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1271 1256
1272 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1257 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1273 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1258 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 1259
1280 create_pipe (); 1260 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1281 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1282}
1283 1261
1262 reinit ();
1263}
1264
1284void 1265void
1266reinit ()
1267 PROTOTYPE:
1268
1269void
1285max_poll_reqs (int nreqs) 1270max_poll_reqs (unsigned int nreqs)
1286 PROTOTYPE: $ 1271 PROTOTYPE: $
1287 CODE: 1272 CODE:
1288 max_poll_reqs = nreqs; 1273 eio_set_max_poll_reqs (nreqs);
1289 1274
1290void 1275void
1291max_poll_time (double nseconds) 1276max_poll_time (double nseconds)
1292 PROTOTYPE: $ 1277 PROTOTYPE: $
1293 CODE: 1278 CODE:
1294 max_poll_time = nseconds * AIO_TICKS; 1279 eio_set_max_poll_time (nseconds);
1295 1280
1296void 1281void
1297min_parallel (int nthreads) 1282min_parallel (unsigned int nthreads)
1298 PROTOTYPE: $
1299
1300void
1301max_parallel (int nthreads)
1302 PROTOTYPE: $
1303
1304void
1305max_idle (int nthreads)
1306 PROTOTYPE: $ 1283 PROTOTYPE: $
1307 CODE: 1284 CODE:
1308 set_max_idle (nthreads); 1285 eio_set_min_parallel (nthreads);
1309 1286
1310int 1287void
1311max_outstanding (int maxreqs) 1288max_parallel (unsigned int nthreads)
1312 PROTOTYPE: $ 1289 PROTOTYPE: $
1313 CODE: 1290 CODE:
1314 RETVAL = max_outstanding; 1291 eio_set_max_parallel (nthreads);
1292
1293void
1294max_idle (unsigned int nthreads)
1295 PROTOTYPE: $
1296 CODE:
1297 eio_set_max_idle (nthreads);
1298
1299void
1300idle_timeout (unsigned int seconds)
1301 PROTOTYPE: $
1302 CODE:
1303 eio_set_idle_timeout (seconds);
1304
1305void
1306max_outstanding (unsigned int maxreqs)
1307 PROTOTYPE: $
1308 CODE:
1315 max_outstanding = maxreqs; 1309 max_outstanding = maxreqs;
1316 OUTPUT:
1317 RETVAL
1318 1310
1319void 1311void
1320aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1312aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1321 SV8 * pathname
1322 int flags
1323 int mode
1324 SV * callback
1325 PROTOTYPE: $$$;$
1326 PPCODE: 1313 PPCODE:
1327{ 1314{
1328 dREQ; 1315 dREQ;
1329 1316
1317 req->type = EIO_WD_OPEN;
1318 req_set_path1 (req, pathname);
1319
1320 REQ_SEND;
1321}
1322
1323void
1324aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1325 PPCODE:
1326{
1327 dREQ;
1328
1330 req->type = REQ_OPEN; 1329 req->type = EIO_OPEN;
1331 req->sv1 = newSVsv (pathname); 1330 req_set_path1 (req, pathname);
1332 req->ptr1 = SvPVbyte_nolen (req->sv1);
1333 req->int1 = flags; 1331 req->int1 = flags;
1334 req->mode = mode; 1332 req->int2 = mode;
1335 1333
1336 REQ_SEND; 1334 REQ_SEND;
1337} 1335}
1338 1336
1339void 1337void
1340aio_close (fh,callback=&PL_sv_undef) 1338aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1341 SV * fh
1342 SV * callback
1343 PROTOTYPE: $;$
1344 ALIAS: 1339 ALIAS:
1345 aio_close = REQ_CLOSE
1346 aio_fsync = REQ_FSYNC 1340 aio_fsync = EIO_FSYNC
1347 aio_fdatasync = REQ_FDATASYNC 1341 aio_fdatasync = EIO_FDATASYNC
1342 aio_syncfs = EIO_SYNCFS
1348 PPCODE: 1343 PPCODE:
1349{ 1344{
1345 int fd = s_fileno_croak (fh, 0);
1350 dREQ; 1346 dREQ;
1351 1347
1352 req->type = ix; 1348 req->type = ix;
1353 req->fh = newSVsv (fh); 1349 req->sv1 = newSVsv (fh);
1354 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1350 req->int1 = fd;
1355 1351
1356 REQ_SEND (req); 1352 REQ_SEND;
1357} 1353}
1358 1354
1359void 1355void
1356aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1357 PPCODE:
1358{
1359 int fd = s_fileno_croak (fh, 0);
1360 dREQ;
1361
1362 req->type = EIO_SYNC_FILE_RANGE;
1363 req->sv1 = newSVsv (fh);
1364 req->int1 = fd;
1365 req->offs = offset;
1366 req->size = nbytes;
1367 req->int2 = flags;
1368
1369 REQ_SEND;
1370}
1371
1372void
1373aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1374 PPCODE:
1375{
1376 int fd = s_fileno_croak (fh, 0);
1377 dREQ;
1378
1379 req->type = EIO_FALLOCATE;
1380 req->sv1 = newSVsv (fh);
1381 req->int1 = fd;
1382 req->int2 = mode;
1383 req->offs = offset;
1384 req->size = len;
1385
1386 REQ_SEND;
1387}
1388
1389void
1390aio_close (SV *fh, SV *callback = &PL_sv_undef)
1391 PPCODE:
1392{
1393 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1394 int fd = s_fileno_croak (fh, 0);
1395 dREQ;
1396
1397 if (expect_false (close_fd < 0))
1398 {
1399 int pipefd [2];
1400
1401 if (
1402#ifdef _WIN32
1403 _pipe (pipefd, 1, _O_BINARY) < 0
1404#else
1405 pipe (pipefd) < 0
1406 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1407#endif
1408 || close (pipefd [1]) < 0
1409 )
1410 abort (); /*D*/
1411
1412 close_fd = pipefd [0];
1413 }
1414
1415 req->type = EIO_DUP2;
1416 req->int1 = close_fd;
1417 req->sv2 = newSVsv (fh);
1418 req->int2 = fd;
1419
1420 REQ_SEND;
1421}
1422
1423void
1424aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1425 PPCODE:
1426{
1427 int fd = s_fileno_croak (fh, 0);
1428 dREQ;
1429
1430 req->type = EIO_SEEK;
1431 req->sv1 = newSVsv (fh);
1432 req->int1 = fd;
1433 req->offs = SvVAL64 (offset);
1434 req->int2 = whence;
1435
1436 REQ_SEND;
1437}
1438
1439void
1360aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1440aio_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: 1441 ALIAS:
1368 aio_read = REQ_READ 1442 aio_read = EIO_READ
1369 aio_write = REQ_WRITE 1443 aio_write = EIO_WRITE
1370 PROTOTYPE: $$$$$;$
1371 PPCODE: 1444 PPCODE:
1372{ 1445{
1373 STRLEN svlen; 1446 STRLEN svlen;
1447 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1374 char *svptr = SvPVbyte (data, svlen); 1448 char *svptr = SvPVbyte (data, svlen);
1375 1449 UV len = SvUV (length);
1376 SvUPGRADE (data, SVt_PV);
1377 SvPOK_on (data);
1378 1450
1379 if (dataoffset < 0) 1451 if (dataoffset < 0)
1380 dataoffset += svlen; 1452 dataoffset += svlen;
1381 1453
1382 if (dataoffset < 0 || dataoffset > svlen) 1454 if (dataoffset < 0 || dataoffset > svlen)
1383 croak ("data offset outside of string"); 1455 croak ("dataoffset outside of data scalar");
1384 1456
1385 if (ix == REQ_WRITE) 1457 if (ix == EIO_WRITE)
1386 { 1458 {
1387 /* write: check length and adjust. */ 1459 /* write: check length and adjust. */
1388 if (length < 0 || length + dataoffset > svlen) 1460 if (!SvOK (length) || len + dataoffset > svlen)
1389 length = svlen - dataoffset; 1461 len = svlen - dataoffset;
1390 } 1462 }
1391 else 1463 else
1392 { 1464 {
1393 /* read: grow scalar as necessary */ 1465 /* read: check type and grow scalar as necessary */
1466 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1394 svptr = SvGROW (data, length + dataoffset + 1); 1467 svptr = sv_grow (data, len + dataoffset + 1);
1468 else if (SvCUR (data) < len + dataoffset)
1469 croak ("length + dataoffset outside of scalar, and cannot grow");
1395 } 1470 }
1396
1397 if (length < 0)
1398 croak ("length must not be negative");
1399 1471
1400 { 1472 {
1401 dREQ; 1473 dREQ;
1402 1474
1403 req->type = ix; 1475 req->type = ix;
1404 req->fh = newSVsv (fh); 1476 req->sv1 = newSVsv (fh);
1405 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1477 req->int1 = fd;
1406 : IoOFP (sv_2io (fh))); 1478 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1407 req->offs = offset;
1408 req->size = length; 1479 req->size = len;
1409 req->sv1 = SvREFCNT_inc (data); 1480 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr1 = (char *)svptr + dataoffset; 1481 req->ptr2 = (char *)svptr + dataoffset;
1411 req->stroffset = dataoffset; 1482 req->stroffset = dataoffset;
1412 1483
1413 if (!SvREADONLY (data)) 1484 if (!SvREADONLY (data))
1414 { 1485 {
1415 SvREADONLY_on (data); 1486 SvREADONLY_on (data);
1416 req->flags |= FLAG_SV1_RO_OFF; 1487 req->flags |= FLAG_SV2_RO_OFF;
1417 } 1488 }
1418 1489
1419 REQ_SEND; 1490 REQ_SEND;
1420 } 1491 }
1421} 1492}
1422 1493
1423void 1494void
1424aio_readlink (path,callback=&PL_sv_undef) 1495aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1425 SV8 * path 1496 ALIAS:
1426 SV * callback 1497 aio_ioctl = EIO_IOCTL
1427 PROTOTYPE: $$;$ 1498 aio_fcntl = EIO_FCNTL
1428 PPCODE: 1499 PPCODE:
1429{ 1500{
1430 SV *data; 1501 int fd = s_fileno_croak (fh, 0);
1502 char *svptr;
1503
1504 if (SvPOK (arg) || !SvNIOK (arg))
1505 {
1506 STRLEN svlen;
1507 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1508#ifdef IOCPARM_LEN
1509 STRLEN need = IOCPARM_LEN (request);
1510#else
1511 STRLEN need = 256;
1512#endif
1513
1514 if (svlen < need)
1515 svptr = SvGROW (arg, need);
1516 }
1517 else
1518 svptr = (char *)SvIV (arg);
1519
1520 {
1521 dREQ;
1522
1523 req->type = ix;
1524 req->sv1 = newSVsv (fh);
1525 req->int1 = fd;
1526 req->int2 = (long)request;
1527 req->sv2 = SvREFCNT_inc (arg);
1528 req->ptr2 = svptr;
1529
1530 REQ_SEND;
1531 }
1532}
1533
1534void
1535aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1536 ALIAS:
1537 aio_readlink = EIO_READLINK
1538 aio_realpath = EIO_REALPATH
1539 PPCODE:
1540{
1431 dREQ; 1541 dREQ;
1432 1542
1433 data = newSV (NAME_MAX);
1434 SvPOK_on (data);
1435
1436 req->type = REQ_READLINK; 1543 req->type = ix;
1437 req->fh = newSVsv (path); 1544 req_set_path1 (req, pathname);
1438 req->ptr2 = SvPVbyte_nolen (req->fh);
1439 req->sv1 = data;
1440 req->ptr1 = SvPVbyte_nolen (data);
1441 1545
1442 REQ_SEND; 1546 REQ_SEND;
1443} 1547}
1444 1548
1445void 1549void
1446aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1550aio_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: $$$$;$
1453 PPCODE: 1551 PPCODE:
1454{ 1552{
1553 int ifd = s_fileno_croak (in_fh , 0);
1554 int ofd = s_fileno_croak (out_fh, 1);
1455 dREQ; 1555 dREQ;
1456 1556
1457 req->type = REQ_SENDFILE; 1557 req->type = EIO_SENDFILE;
1458 req->fh = newSVsv (out_fh); 1558 req->sv1 = newSVsv (out_fh);
1459 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1559 req->int1 = ofd;
1460 req->sv2 = newSVsv (in_fh); 1560 req->sv2 = newSVsv (in_fh);
1461 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1561 req->int2 = ifd;
1462 req->offs = in_offset; 1562 req->offs = in_offset;
1463 req->size = length; 1563 req->size = length;
1464 1564
1465 REQ_SEND; 1565 REQ_SEND;
1466} 1566}
1467 1567
1468void 1568void
1469aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1569aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1470 SV * fh
1471 UV offset
1472 IV length
1473 SV * callback
1474 PROTOTYPE: $$$;$
1475 PPCODE: 1570 PPCODE:
1476{ 1571{
1572 int fd = s_fileno_croak (fh, 0);
1477 dREQ; 1573 dREQ;
1478 1574
1479 req->type = REQ_READAHEAD; 1575 req->type = EIO_READAHEAD;
1480 req->fh = newSVsv (fh); 1576 req->sv1 = newSVsv (fh);
1481 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1577 req->int1 = fd;
1482 req->offs = offset; 1578 req->offs = offset;
1483 req->size = length; 1579 req->size = length;
1484 1580
1485 REQ_SEND; 1581 REQ_SEND;
1486} 1582}
1487 1583
1488void 1584void
1489aio_stat (fh_or_path,callback=&PL_sv_undef) 1585aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1490 SV8 * fh_or_path
1491 SV * callback
1492 ALIAS: 1586 ALIAS:
1493 aio_stat = REQ_STAT 1587 aio_stat = EIO_STAT
1494 aio_lstat = REQ_LSTAT 1588 aio_lstat = EIO_LSTAT
1589 aio_statvfs = EIO_STATVFS
1495 PPCODE: 1590 PPCODE:
1496{ 1591{
1497 dREQ; 1592 dREQ;
1498 1593
1499 req->ptr2 = malloc (sizeof (Stat_t)); 1594 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 1595
1521 REQ_SEND; 1596 REQ_SEND;
1522} 1597}
1523 1598
1599UV
1600major (UV dev)
1601 ALIAS:
1602 minor = 1
1603 CODE:
1604 RETVAL = ix ? minor (dev) : major (dev);
1605 OUTPUT:
1606 RETVAL
1607
1608UV
1609makedev (UV maj, UV min)
1610 CODE:
1611 RETVAL = makedev (maj, min);
1612 OUTPUT:
1613 RETVAL
1614
1524void 1615void
1616aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1617 PPCODE:
1618{
1619 dREQ;
1620
1621 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1622 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1623 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1624
1625 REQ_SEND;
1626}
1627
1628void
1629aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1630 PPCODE:
1631{
1632 dREQ;
1633
1634 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1635 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1636
1637 REQ_SEND;
1638}
1639
1640void
1641aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1642 PPCODE:
1643{
1644 dREQ;
1645
1646 req->int2 = mode;
1647 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1648
1649 REQ_SEND;
1650}
1651
1652void
1653aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1654 PPCODE:
1655{
1656 dREQ;
1657
1658 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1659 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1660 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1661
1662 REQ_SEND;
1663}
1664
1665void
1666aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1667 PPCODE:
1668{
1669 dREQ;
1670
1671 req->type = EIO_READDIR;
1672 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1673
1674 if (flags & EIO_READDIR_DENTS)
1675 req->int1 |= EIO_READDIR_CUSTOM2;
1676
1677 req_set_path1 (req, pathname);
1678
1679 REQ_SEND;
1680}
1681
1682void
1683aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1684 PPCODE:
1685{
1686 dREQ;
1687
1688 req->type = EIO_MKDIR;
1689 req->int2 = mode;
1690 req_set_path1 (req, pathname);
1691
1692 REQ_SEND;
1693}
1694
1695void
1525aio_unlink (pathname,callback=&PL_sv_undef) 1696aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1526 SV8 * pathname
1527 SV * callback
1528 ALIAS: 1697 ALIAS:
1529 aio_unlink = REQ_UNLINK 1698 aio_unlink = EIO_UNLINK
1530 aio_rmdir = REQ_RMDIR 1699 aio_rmdir = EIO_RMDIR
1531 aio_readdir = REQ_READDIR 1700 aio_readdir = EIO_READDIR
1532 PPCODE: 1701 PPCODE:
1533{ 1702{
1534 dREQ; 1703 dREQ;
1535 1704
1536 req->type = ix; 1705 req->type = ix;
1537 req->sv1 = newSVsv (pathname); 1706 req_set_path1 (req, pathname);
1538 req->ptr1 = SvPVbyte_nolen (req->sv1);
1539 1707
1540 REQ_SEND; 1708 REQ_SEND;
1541} 1709}
1542 1710
1543void 1711void
1544aio_mkdir (pathname,mode,callback=&PL_sv_undef) 1712aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1545 SV8 * pathname 1713 ALIAS:
1546 UV mode 1714 aio_link = EIO_LINK
1547 SV * callback 1715 aio_symlink = EIO_SYMLINK
1716 aio_rename = EIO_RENAME
1548 PPCODE: 1717 PPCODE:
1549{ 1718{
1550 dREQ; 1719 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; 1720 dREQ;
1572 1721
1573 req->type = ix; 1722 req->type = ix;
1574 req->fh = newSVsv (oldpath); 1723 req_set_path1 (req, oldpath);
1575 req->ptr2 = SvPVbyte_nolen (req->fh); 1724 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1576 req->sv1 = newSVsv (newpath); 1725 req->int3 = (long)wd2;
1577 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 1726
1579 REQ_SEND; 1727 REQ_SEND;
1580} 1728}
1581 1729
1582void 1730void
1583aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1731aio_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: 1732 PPCODE:
1589{ 1733{
1734 eio_wd wd2 = 0;
1590 dREQ; 1735 dREQ;
1591 1736
1592 req->type = REQ_MKNOD; 1737 req->type = EIO_RENAME;
1593 req->sv1 = newSVsv (pathname); 1738 req_set_path1 (req, oldpath);
1594 req->ptr1 = SvPVbyte_nolen (req->sv1); 1739 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1595 req->mode = (mode_t)mode; 1740 req->int2 = flags;
1596 req->offs = dev; 1741 req->int3 = (long)wd2;
1597 1742
1598 REQ_SEND; 1743 REQ_SEND;
1599} 1744}
1600 1745
1601void 1746void
1602aio_busy (delay,callback=&PL_sv_undef) 1747aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1603 double delay
1604 SV * callback
1605 PPCODE: 1748 PPCODE:
1606{ 1749{
1607 dREQ; 1750 dREQ;
1608 1751
1609 req->type = REQ_BUSY; 1752 req->type = EIO_MKNOD;
1610 req->int1 = delay < 0. ? 0 : delay; 1753 req->int2 = (mode_t)mode;
1611 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1754 req->offs = dev;
1612 1755 req_set_path1 (req, pathname);
1756
1613 REQ_SEND; 1757 REQ_SEND;
1614} 1758}
1615 1759
1616void 1760void
1617aio_group (callback=&PL_sv_undef) 1761aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1618 SV * callback 1762 ALIAS:
1619 PROTOTYPE: ;$ 1763 aio_mtouch = EIO_MTOUCH
1764 aio_msync = EIO_MSYNC
1620 PPCODE: 1765 PPCODE:
1621{ 1766{
1767 STRLEN svlen;
1768 char *svptr = SvPVbyte (data, svlen);
1769 UV len = SvUV (length);
1770
1771 if (flags < 0)
1772 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1773
1774 if (offset < 0)
1775 offset += svlen;
1776
1777 if (offset < 0 || offset > svlen)
1778 croak ("offset outside of scalar");
1779
1780 if (!SvOK (length) || len + offset > svlen)
1781 len = svlen - offset;
1782
1783 {
1784 dREQ;
1785
1786 req->type = ix;
1787 req->sv2 = SvREFCNT_inc (data);
1788 req->ptr2 = (char *)svptr + offset;
1789 req->size = len;
1790 req->int1 = flags;
1791
1792 REQ_SEND;
1793 }
1794}
1795
1796void
1797aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1798 PPCODE:
1799{
1800 STRLEN svlen;
1801 char *svptr = SvPVbyte (data, svlen);
1802 UV len = SvUV (length);
1803
1804 if (offset < 0)
1805 offset += svlen;
1806
1807 if (offset < 0 || offset > svlen)
1808 croak ("offset outside of scalar");
1809
1810 if (!SvOK (length) || len + offset > svlen)
1811 len = svlen - offset;
1812
1813 {
1814 dREQ;
1815
1816 req->type = EIO_MLOCK;
1817 req->sv2 = SvREFCNT_inc (data);
1818 req->ptr2 = (char *)svptr + offset;
1819 req->size = len;
1820
1821 REQ_SEND;
1822 }
1823}
1824
1825void
1826aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1827 PPCODE:
1828{
1829 dREQ;
1830
1831 req->type = EIO_MLOCKALL;
1832 req->int1 = flags;
1833
1834 REQ_SEND;
1835}
1836
1837void
1838aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1839 PPCODE:
1840{
1841 int fd = s_fileno_croak (fh, 0);
1622 dREQ; 1842 dREQ;
1623 1843
1624 req->type = REQ_GROUP; 1844 req->type = EIO_CUSTOM;
1845 req->sv1 = newSVsv (fh);
1846 req->int1 = fd;
1625 1847
1626 req_send (req); 1848 req->feed = fiemap;
1627 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1849#if HAVE_FIEMAP
1628} 1850 /* keep our fingers crossed that the next two types are 64 bit */
1851 req->offs = start;
1852 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1853 req->int2 = flags;
1854 req->int3 = SvOK (count) ? SvIV (count) : -1;
1855#endif
1629 1856
1857 REQ_SEND;
1858}
1859
1630void 1860void
1631aio_nop (callback=&PL_sv_undef) 1861aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1632 SV * callback 1862 PPCODE:
1863{
1864 char *svptr = 0;
1865
1866 sv_clear_foreign (data);
1867
1868 if (length) /* known length, directly read into scalar */
1869 {
1870 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1871 svptr = sv_grow (data, length + 1);
1872 else if (SvCUR (data) < length)
1873 croak ("length outside of scalar, and cannot grow");
1874 else
1875 svptr = SvPVbyte_nolen (data);
1876 }
1877
1878 {
1879 dREQ;
1880
1881 req->type = EIO_SLURP;
1882 req_set_path1 (req, pathname);
1883 req->offs = offset;
1884 req->size = length;
1885 req->sv2 = SvREFCNT_inc (data);
1886 req->ptr2 = svptr;
1887
1888 if (!SvREADONLY (data))
1889 {
1890 SvREADONLY_on (data);
1891 req->flags |= FLAG_SV2_RO_OFF;
1892 }
1893
1894 REQ_SEND;
1895 }
1896}
1897
1898void
1899aio_busy (double delay, SV *callback = &PL_sv_undef)
1633 PPCODE: 1900 PPCODE:
1634{ 1901{
1635 dREQ; 1902 dREQ;
1636 1903
1637 req->type = REQ_NOP; 1904 req->type = EIO_BUSY;
1905 req->nv1 = delay < 0. ? 0. : delay;
1638 1906
1639 REQ_SEND; 1907 REQ_SEND;
1640} 1908}
1641 1909
1910void
1911aio_group (SV *callback = &PL_sv_undef)
1912 PPCODE:
1913{
1914 dREQ;
1915
1916 req->type = EIO_GROUP;
1917
1918 PUTBACK;
1919 req_submit (req);
1920 SPAGAIN;
1921
1922 XPUSHs (req_sv (req, aio_grp_stash));
1923}
1924
1925void
1926aio_nop (SV *callback = &PL_sv_undef)
1927 ALIAS:
1928 aio_nop = EIO_NOP
1929 aio_sync = EIO_SYNC
1930 PPCODE:
1931{
1932 dREQ;
1933
1934 req->type = ix;
1935
1936 REQ_SEND;
1937}
1938
1642int 1939int
1643aioreq_pri (int pri = 0) 1940aioreq_pri (int pri = NO_INIT)
1644 PROTOTYPE: ;$
1645 CODE: 1941 CODE:
1646 RETVAL = next_pri - PRI_BIAS; 1942 RETVAL = next_pri;
1647 if (items > 0) 1943 if (items > 0)
1648 { 1944 {
1649 if (pri < PRI_MIN) pri = PRI_MIN; 1945 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1650 if (pri > PRI_MAX) pri = PRI_MAX; 1946 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1651 next_pri = pri + PRI_BIAS; 1947 next_pri = pri;
1652 } 1948 }
1653 OUTPUT: 1949 OUTPUT:
1654 RETVAL 1950 RETVAL
1655 1951
1656void 1952void
1657aioreq_nice (int nice = 0) 1953aioreq_nice (int nice = 0)
1658 CODE: 1954 CODE:
1659 nice = next_pri - nice; 1955 nice = next_pri - nice;
1660 if (nice < PRI_MIN) nice = PRI_MIN; 1956 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1661 if (nice > PRI_MAX) nice = PRI_MAX; 1957 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1662 next_pri = nice + PRI_BIAS; 1958 next_pri = nice;
1663 1959
1664void 1960void
1665flush () 1961flush ()
1666 PROTOTYPE:
1667 CODE: 1962 CODE:
1668 while (nreqs) 1963 while (eio_nreqs ())
1669 { 1964 {
1670 poll_wait (); 1965 poll_wait ();
1671 poll_cb (); 1966 poll_cb ();
1672 } 1967 }
1673 1968
1674int 1969int
1675poll() 1970poll ()
1676 PROTOTYPE:
1677 CODE: 1971 CODE:
1678 poll_wait (); 1972 poll_wait ();
1679 RETVAL = poll_cb (); 1973 RETVAL = poll_cb ();
1680 OUTPUT: 1974 OUTPUT:
1681 RETVAL 1975 RETVAL
1682 1976
1683int 1977int
1684poll_fileno() 1978poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 1979 CODE:
1687 RETVAL = respipe [0]; 1980 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 1981 OUTPUT:
1689 RETVAL 1982 RETVAL
1690 1983
1691int 1984int
1692poll_cb(...) 1985poll_cb (...)
1693 PROTOTYPE: 1986 PROTOTYPE:
1694 CODE: 1987 CODE:
1695 RETVAL = poll_cb (); 1988 RETVAL = poll_cb ();
1696 OUTPUT: 1989 OUTPUT:
1697 RETVAL 1990 RETVAL
1698 1991
1699void 1992void
1700poll_wait() 1993poll_wait ()
1701 PROTOTYPE:
1702 CODE: 1994 CODE:
1703 poll_wait (); 1995 poll_wait ();
1704 1996
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 1997int
1743nreqs() 1998nreqs ()
1744 PROTOTYPE:
1745 CODE: 1999 CODE:
1746 RETVAL = nreqs; 2000 RETVAL = eio_nreqs ();
1747 OUTPUT: 2001 OUTPUT:
1748 RETVAL 2002 RETVAL
1749 2003
1750int 2004int
1751nready() 2005nready ()
1752 PROTOTYPE:
1753 CODE: 2006 CODE:
1754 RETVAL = get_nready (); 2007 RETVAL = eio_nready ();
1755 OUTPUT: 2008 OUTPUT:
1756 RETVAL 2009 RETVAL
1757 2010
1758int 2011int
1759npending() 2012npending ()
1760 PROTOTYPE:
1761 CODE: 2013 CODE:
1762 RETVAL = get_npending (); 2014 RETVAL = eio_npending ();
1763 OUTPUT: 2015 OUTPUT:
1764 RETVAL 2016 RETVAL
1765 2017
1766int 2018int
1767nthreads() 2019nthreads ()
1768 PROTOTYPE:
1769 CODE: 2020 CODE:
1770 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2021 RETVAL = eio_nthreads ();
1771 RETVAL = started;
1772 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1773 OUTPUT: 2022 OUTPUT:
1774 RETVAL 2023 RETVAL
1775 2024
2025int
2026fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2027 CODE:
2028 RETVAL = posix_fadvise (fh, offset, length, advice);
2029 OUTPUT:
2030 RETVAL
2031
2032IV
2033sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2034 CODE:
2035 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2036 OUTPUT:
2037 RETVAL
2038
2039void
2040mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2041 PPCODE:
2042 sv_clear_foreign (scalar);
2043{
2044 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2045 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2046 if (addr == (void *)-1)
2047 XSRETURN_NO;
2048
2049 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2050
2051 if (!(prot & PROT_WRITE))
2052 SvREADONLY_on (scalar);
2053
2054 XSRETURN_YES;
2055}
2056
2057void
2058munmap (SV *scalar)
2059 CODE:
2060 sv_clear_foreign (scalar);
2061
2062int
2063madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2064 ALIAS:
2065 mprotect = 1
2066 CODE:
2067{
2068 STRLEN svlen;
2069 void *addr = SvPVbyte (scalar, svlen);
2070 STRLEN len = SvUV (length);
2071
2072 if (offset < 0)
2073 offset += svlen;
2074
2075 if (offset < 0 || offset > svlen)
2076 croak ("offset outside of scalar");
2077
2078 if (!SvOK (length) || len + offset > svlen)
2079 len = svlen - offset;
2080
2081 addr = (void *)(((intptr_t)addr) + offset);
2082 eio_page_align (&addr, &len);
2083
2084 switch (ix)
2085 {
2086 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2087 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2088 }
2089}
2090 OUTPUT:
2091 RETVAL
2092
2093int
2094munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2095 CODE:
2096{
2097 STRLEN svlen;
2098 void *addr = SvPVbyte (scalar, svlen);
2099 size_t len = SvUV (length);
2100
2101 if (offset < 0)
2102 offset += svlen;
2103
2104 if (offset < 0 || offset > svlen)
2105 croak ("offset outside of scalar");
2106
2107 if (!SvOK (length) || len + offset > svlen)
2108 len = svlen - offset;
2109
2110 addr = (void *)(((intptr_t)addr) + offset);
2111 eio_page_align (&addr, &len);
2112#if _POSIX_MEMLOCK_RANGE
2113 RETVAL = munlock (addr, len);
2114#else
2115 RETVAL = EIO_ENOSYS ();
2116#endif
2117}
2118 OUTPUT:
2119 RETVAL
2120
2121int
2122munlockall ()
2123 CODE:
2124#if _POSIX_MEMLOCK
2125 munlockall ();
2126#else
2127 RETVAL = EIO_ENOSYS ();
2128#endif
2129 OUTPUT:
2130 RETVAL
2131
2132int
2133splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2134 CODE:
2135{
2136#if HAVE_LINUX_SPLICE
2137 loff_t off_in_, off_out_;
2138 RETVAL = splice (
2139 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2140 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2141 length, flags
2142 );
2143#else
2144 RETVAL = EIO_ENOSYS ();
2145#endif
2146}
2147 OUTPUT:
2148 RETVAL
2149
2150int
2151tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2152 CODE:
2153#if HAVE_LINUX_SPLICE
2154 RETVAL = tee (rfh, wfh, length, flags);
2155#else
2156 RETVAL = EIO_ENOSYS ();
2157#endif
2158 OUTPUT:
2159 RETVAL
2160
2161int
2162pipesize (aio_rfd rfh, int new_size = -1)
2163 PROTOTYPE: $;$
2164 CODE:
2165#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2166 if (new_size >= 0)
2167 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2168 else
2169 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2170#else
2171 errno = ENOSYS;
2172 RETVAL = -1;
2173#endif
2174 OUTPUT:
2175 RETVAL
2176
2177void
2178pipe2 (int flags = 0)
2179 PROTOTYPE: ;$
2180 PPCODE:
2181{
2182 int fd[2];
2183 int res;
2184
2185 if (flags)
2186#if HAVE_PIPE2
2187 res = pipe2 (fd, flags);
2188#else
2189 res = (errno = ENOSYS, -1);
2190#endif
2191 else
2192 res = pipe (fd);
2193
2194 if (!res)
2195 {
2196 EXTEND (SP, 2);
2197 PUSHs (newmortalFH (fd[0], O_RDONLY));
2198 PUSHs (newmortalFH (fd[1], O_WRONLY));
2199 }
2200}
2201
2202void
2203eventfd (unsigned int initval = 0, int flags = 0)
2204 PPCODE:
2205{
2206 int fd;
2207#if HAVE_EVENTFD
2208 fd = eventfd (initval, flags);
2209#else
2210 fd = (errno = ENOSYS, -1);
2211#endif
2212
2213 XPUSHs (newmortalFH (fd, O_RDWR));
2214}
2215
2216void
2217timerfd_create (int clockid, int flags = 0)
2218 PPCODE:
2219{
2220 int fd;
2221#if HAVE_TIMERFD
2222 fd = timerfd_create (clockid, flags);
2223#else
2224 fd = (errno = ENOSYS, -1);
2225#endif
2226
2227 XPUSHs (newmortalFH (fd, O_RDWR));
2228}
2229
2230void
2231timerfd_settime (SV *fh, int flags, NV interval, NV value)
2232 PPCODE:
2233{
2234 int fd = s_fileno_croak (fh, 0);
2235 int res;
2236 struct itimerspec its, ots;
2237
2238 ts_set (&its.it_interval, interval);
2239 ts_set (&its.it_value , value);
2240#if HAVE_TIMERFD
2241 res = timerfd_settime (fd, flags, &its, &ots);
2242#else
2243 res = (errno = ENOSYS, -1);
2244#endif
2245
2246 if (!res)
2247 {
2248 EXTEND (SP, 2);
2249 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2250 PUSHs (newSVnv (ts_get (&ots.it_value)));
2251 }
2252}
2253
2254void
2255timerfd_gettime (SV *fh)
2256 PPCODE:
2257{
2258 int fd = s_fileno_croak (fh, 0);
2259 int res;
2260 struct itimerspec ots;
2261#if HAVE_TIMERFD
2262 res = timerfd_gettime (fd, &ots);
2263#else
2264 res = (errno = ENOSYS, -1);
2265#endif
2266
2267 if (!res)
2268 {
2269 EXTEND (SP, 2);
2270 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2271 PUSHs (newSVnv (ts_get (&ots.it_value)));
2272 }
2273}
2274
2275UV
2276get_fdlimit ()
2277 CODE:
2278#if HAVE_RLIMITS
2279 struct rlimit rl;
2280 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2281 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2282#endif
2283 XSRETURN_UNDEF;
2284 OUTPUT:
2285 RETVAL
2286
2287void
2288min_fdlimit (UV limit = 0x7fffffffU)
2289 CODE:
2290{
2291#if HAVE_RLIMITS
2292 struct rlimit rl;
2293 rlim_t orig_rlim_max;
2294 UV bit;
2295
2296 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2297 goto fail;
2298
2299 if (rl.rlim_cur == RLIM_INFINITY)
2300 XSRETURN_YES;
2301
2302 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2303
2304 if (rl.rlim_cur < limit)
2305 {
2306 rl.rlim_cur = limit;
2307
2308 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2309 rl.rlim_max = rl.rlim_cur;
2310 }
2311
2312 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2313 XSRETURN_YES;
2314
2315 if (errno == EPERM)
2316 {
2317 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2318 /* our limit overflows a system-wide limit */
2319 /* try an adaptive algorithm, but do not lower the hardlimit */
2320 rl.rlim_max = 0;
2321 for (bit = 0x40000000U; bit; bit >>= 1)
2322 {
2323 rl.rlim_max |= bit;
2324 rl.rlim_cur = rl.rlim_max;
2325
2326 /* nevr decrease the hard limit */
2327 if (rl.rlim_max < orig_rlim_max)
2328 break;
2329
2330 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2331 rl.rlim_max &= ~bit; /* too high, remove bit again */
2332 }
2333
2334 /* now, raise the soft limit to the max permitted */
2335 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2336 {
2337 rl.rlim_cur = rl.rlim_max;
2338 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2339 errno = EPERM;
2340 }
2341 }
2342#endif
2343 fail:
2344 XSRETURN_UNDEF;
2345}
2346
2347void _on_next_submit (SV *cb)
2348 CODE:
2349 SvREFCNT_dec (on_next_submit);
2350 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2351
1776PROTOTYPES: DISABLE 2352PROTOTYPES: DISABLE
2353
2354MODULE = IO::AIO PACKAGE = IO::AIO::WD
2355
2356BOOT:
2357{
2358 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2359 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2360}
2361
2362void
2363DESTROY (SV *self)
2364 CODE:
2365{
2366 aio_wd wd = SvAIO_WD (self);
2367#if HAVE_AT
2368 {
2369 SV *callback = &PL_sv_undef;
2370 dREQ; /* clobbers next_pri :/ */
2371 next_pri = req->pri; /* restore next_pri */
2372 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2373 req->type = EIO_WD_CLOSE;
2374 req->wd = wd;
2375 REQ_SEND;
2376 }
2377#else
2378 eio_wd_close_sync (wd);
2379#endif
2380}
1777 2381
1778MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2382MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1779 2383
1780void 2384void
1781cancel (aio_req_ornot req) 2385cancel (aio_req_ornot req)
1782 CODE: 2386 CODE:
1783 req_cancel (req); 2387 eio_cancel (req);
1784 2388
1785void 2389void
1786cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2390cb (aio_req_ornot req, SV *callback = NO_INIT)
1787 CODE: 2391 PPCODE:
2392{
2393 if (GIMME_V != G_VOID)
2394 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2395
2396 if (items > 1)
2397 {
2398 SV *cb_cv = get_cb (callback);
2399
1788 SvREFCNT_dec (req->callback); 2400 SvREFCNT_dec (req->callback);
1789 req->callback = newSVsv (callback); 2401 req->callback = SvREFCNT_inc (cb_cv);
2402 }
2403}
1790 2404
1791MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2405MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1792 2406
1793void 2407void
1794add (aio_req grp, ...) 2408add (aio_req grp, ...)
1795 PPCODE: 2409 PPCODE:
1796{ 2410{
1797 int i; 2411 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 2412
1803 if (grp->int1 == 2) 2413 if (grp->int1 == 2)
1804 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2414 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1805 2415
1806 for (i = 1; i < items; ++i ) 2416 for (i = 1; i < items; ++i )
1807 { 2417 {
2418 aio_req req;
2419
1808 if (GIMME_V != G_VOID) 2420 if (GIMME_V != G_VOID)
1809 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2421 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1810 2422
1811 req = SvAIO_REQ (ST (i)); 2423 req = SvAIO_REQ (ST (i));
1812 2424
1813 if (req) 2425 if (req)
1814 { 2426 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 } 2427 }
1827} 2428}
1828 2429
1829void 2430void
1830cancel_subs (aio_req_ornot req) 2431cancel_subs (aio_req_ornot req)
… …
1839 AV *av; 2440 AV *av;
1840 2441
1841 grp->errorno = errno; 2442 grp->errorno = errno;
1842 2443
1843 av = newAV (); 2444 av = newAV ();
2445 av_extend (av, items - 1);
1844 2446
1845 for (i = 1; i < items; ++i ) 2447 for (i = 1; i < items; ++i )
1846 av_push (av, newSVsv (ST (i))); 2448 av_push (av, newSVsv (ST (i)));
1847 2449
1848 SvREFCNT_dec (grp->sv1); 2450 SvREFCNT_dec (grp->sv1);
… …
1855 grp->errorno = errorno; 2457 grp->errorno = errorno;
1856 2458
1857void 2459void
1858limit (aio_req grp, int limit) 2460limit (aio_req grp, int limit)
1859 CODE: 2461 CODE:
1860 grp->int2 = limit; 2462 eio_grp_limit (grp, limit);
1861 aio_grp_feed (grp);
1862 2463
1863void 2464void
1864feed (aio_req grp, SV *callback=&PL_sv_undef) 2465feed (aio_req grp, SV *callback = &PL_sv_undef)
1865 CODE: 2466 CODE:
1866{ 2467{
1867 SvREFCNT_dec (grp->sv2); 2468 SvREFCNT_dec (grp->sv2);
1868 grp->sv2 = newSVsv (callback); 2469 grp->sv2 = newSVsv (callback);
2470 grp->feed = aio_grp_feed;
1869 2471
1870 if (grp->int2 <= 0) 2472 if (grp->int2 <= 0)
1871 grp->int2 = 2; 2473 grp->int2 = 2;
1872 2474
1873 aio_grp_feed (grp); 2475 eio_grp_limit (grp, grp->int2);
1874} 2476}
1875 2477

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