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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.103 by root, Sun Jul 8 09:09:34 2007 UTC vs.
Revision 1.250 by root, Fri Sep 22 05:20:39 2017 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
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
18#ifdef _WIN32 47#ifdef _WIN32
19 48
20# define SIGIO 0 49 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 50
22#undef malloc 51 #undef malloc
23#undef free 52 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 53 #undef open
27# undef read 54 #undef read
28# undef write 55 #undef write
56 #undef send
57 #undef recv
29# undef stat 58 #undef stat
59 #undef lstat
30# undef fstat 60 #undef fstat
31# define lstat stat
32# undef truncate 61 #undef truncate
33# undef ftruncate 62 #undef ftruncate
34# undef open 63 #undef open
64 #undef link
35# undef close 65 #undef close
36# undef unlink 66 #undef unlink
67 #undef mkdir
37# undef rmdir 68 #undef rmdir
38# undef rename 69 #undef rename
39# undef lseek 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
40 80
41# define chown(a,b,c) (errno = ENOSYS, -1) 81 #define EIO_STRUCT_STAT struct _stati64
42# define fchown(a,b,c) (errno = ENOSYS, -1) 82 #define EIO_STRUCT_STATI64
43# define fchmod(a,b) (errno = ENOSYS, -1)
44# define symlink(a,b) (errno = ENOSYS, -1)
45# define readlink(a,b,c) (errno = ENOSYS, -1)
46# define mknod(a,b,c) (errno = ENOSYS, -1)
47# define truncate(a,b) (errno = ENOSYS, -1)
48# define ftruncate(fd,o) chsize ((fd), (o))
49# define fsync(fd) _commit (fd)
50# define opendir(fd) (errno = ENOSYS, 0)
51# define readdir(fd) (errno = ENOSYS, -1)
52# define closedir(fd) (errno = ENOSYS, -1)
53# define mkdir(a,b) mkdir (a)
54 83
55#else 84#else
56 85
57# include "autoconf/config.h"
58# include <sys/time.h> 86 #include <sys/time.h>
59# include <sys/select.h> 87 #include <sys/select.h>
60# include <unistd.h> 88 #include <unistd.h>
61# include <utime.h> 89 #include <utime.h>
62# include <signal.h> 90 #include <signal.h>
63 typedef struct dirent X_DIRENT;
64 91
65#endif 92 #define EIO_STRUCT_STAT Stat_t
66 93
67#if HAVE_SENDFILE 94#endif
68# if __linux 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_RLIMITS
69# include <sys/sendfile.h> 112 #include <sys/time.h>
70# elif __freebsd
71# include <sys/socket.h> 113 #include <sys/resource.h>
72# include <sys/uio.h> 114#endif
73# elif __hpux 115
74# include <sys/socket.h> 116typedef SV SV8; /* byte-sv, used for argument-checking */
75# elif __solaris /* not yet */ 117typedef int aio_rfd; /* read file desriptor */
76# include <sys/sendfile.h> 118typedef int aio_wfd; /* write file descriptor */
119
120static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
121
122#define EIO_REQ_MEMBERS \
123 SV *callback; \
124 SV *sv1, *sv2; \
125 SV *sv3, *sv4; \
126 STRLEN stroffset; \
127 SV *self;
128
129#define EIO_NO_WRAPPERS 1
130
131#include "libeio/eio.h"
132
133static int req_invoke (eio_req *req);
134#define EIO_FINISH(req) req_invoke (req)
135static void req_destroy (eio_req *grp);
136#define EIO_DESTROY(req) req_destroy (req)
137
138#include "libeio/eio.c"
139
140#if !HAVE_POSIX_FADVISE
141# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
142#endif
143
144#if !HAVE_POSIX_MADVISE
145# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef MAP_ANONYMOUS
149# ifdef MAP_ANON
150# define MAP_ANONYMOUS MAP_ANON
77# else 151# else
78# error sendfile support requested but not available 152# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
79# endif 153# endif
80#endif 154#endif
81 155
82/* number of seconds after which idle threads exit */ 156/* defines all sorts of constants to 0 unless they are already defined */
83#define IDLE_TIMEOUT 10 157/* also provides const_iv_ and const_niv_ macros for them */
158#include "def0.h"
84 159
85/* used for struct dirent, AIX doesn't provide it */ 160#ifndef makedev
86#ifndef NAME_MAX 161# define makedev(maj,min) (((maj) << 8) | (min))
87# define NAME_MAX 4096
88#endif 162#endif
89 163#ifndef major
90/* buffer size for various temporary buffers */ 164# define major(dev) ((dev) >> 8)
91#define AIO_BUFSIZE 65536
92
93/* use NV for 32 bit perls as it allows larger offsets */
94#if IVSIZE >= 8
95# define SvVAL64 SvIV
96#else
97# define SvVAL64 SvNV
98#endif 165#endif
166#ifndef minor
167# define minor(dev) ((dev) & 0xff)
168#endif
99 169
100#define dBUF \ 170#if PAGESIZE <= 0
101 char *aio_buf; \ 171# define PAGESIZE sysconf (_SC_PAGESIZE)
102 X_LOCK (wrklock); \ 172#endif
103 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
104 X_UNLOCK (wrklock); \
105 if (!aio_buf) \
106 return -1;
107 173
108typedef SV SV8; /* byte-sv, used for argument-checking */ 174/*****************************************************************************/
109 175
110enum { 176static void
111 REQ_QUIT, 177fiemap (eio_req *req)
112 REQ_OPEN, REQ_CLOSE,
113 REQ_READ, REQ_WRITE,
114 REQ_READAHEAD, REQ_SENDFILE,
115 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
116 REQ_TRUNCATE, REQ_FTRUNCATE,
117 REQ_UTIME, REQ_FUTIME,
118 REQ_CHMOD, REQ_FCHMOD,
119 REQ_CHOWN, REQ_FCHOWN,
120 REQ_FSYNC, REQ_FDATASYNC,
121 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
122 REQ_MKNOD, REQ_READDIR,
123 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
124 REQ_GROUP, REQ_NOP,
125 REQ_BUSY,
126};
127
128#define AIO_REQ_KLASS "IO::AIO::REQ"
129#define AIO_GRP_KLASS "IO::AIO::GRP"
130
131typedef struct aio_cb
132{ 178{
133 struct aio_cb *volatile next; 179 req->result = -1;
134 180
135 SV *callback; 181#if HAVE_FIEMAP
136 SV *sv1, *sv2; 182 /* assume some c99 */
137 void *ptr1, *ptr2; 183 struct fiemap *fiemap = 0;
138 off_t offs; 184 size_t end_offset;
139 size_t size; 185 int count = req->int3;
140 ssize_t result;
141 double nv1, nv2;
142 186
143 STRLEN stroffset; 187 req->flags |= EIO_FLAG_PTR1_FREE;
144 int type;
145 int int1, int2, int3;
146 int errorno;
147 mode_t mode; /* open */
148 188
149 unsigned char flags; 189 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
150 unsigned char pri; 190 /* increase in 3.5kb steps */
191 if (count < 0)
192 count = 8;
151 193
152 SV *self; /* the perl counterpart of this request, if any */ 194 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
153 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 195 errno = ENOMEM;
154} aio_cb; 196 if (!fiemap)
155
156enum {
157 FLAG_CANCELLED = 0x01, /* request was cancelled */
158 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
159 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
160};
161
162typedef aio_cb *aio_req;
163typedef aio_cb *aio_req_ornot;
164
165enum {
166 PRI_MIN = -4,
167 PRI_MAX = 4,
168
169 DEFAULT_PRI = 0,
170 PRI_BIAS = -PRI_MIN,
171 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
172};
173
174#define AIO_TICKS ((1000000 + 1023) >> 10)
175
176static unsigned int max_poll_time = 0;
177static unsigned int max_poll_reqs = 0;
178
179/* calculcate time difference in ~1/AIO_TICKS of a second */
180static int tvdiff (struct timeval *tv1, struct timeval *tv2)
181{
182 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
183 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
184}
185
186static thread_t main_tid;
187static int main_sig;
188static int block_sig_level;
189
190void block_sig ()
191{
192 sigset_t ss;
193
194 if (block_sig_level++)
195 return; 197 return;
196 198
197 if (!main_sig) 199 req->ptr1 = fiemap;
200
201 fiemap->fm_start = req->offs;
202 fiemap->fm_length = req->size;
203 fiemap->fm_flags = req->int2;
204 fiemap->fm_extent_count = count;
205
206 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
198 return; 207 return;
199 208
200 sigemptyset (&ss); 209 if (req->int3 >= 0 /* not autosizing */
201 sigaddset (&ss, main_sig); 210 || !fiemap->fm_mapped_extents /* no more extents */
202 pthread_sigmask (SIG_BLOCK, &ss, 0); 211 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
203} 212 goto done;
204 213
205void unblock_sig () 214 /* else we have to loop -
206{ 215 * it would be tempting (actually I tried that first) to just query the
207 sigset_t ss; 216 * number of extents needed, but linux often feels like not returning all
217 * extents, without telling us it left any out. this complicates
218 * this quite a bit.
219 */
208 220
209 if (--block_sig_level) 221 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
210 return;
211 222
212 if (!main_sig) 223 for (;;)
213 return;
214
215 sigemptyset (&ss);
216 sigaddset (&ss, main_sig);
217 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
218}
219
220static int next_pri = DEFAULT_PRI + PRI_BIAS;
221
222static unsigned int started, idle, wanted;
223
224/* worker threads management */
225static mutex_t wrklock = X_MUTEX_INIT;
226
227typedef struct worker {
228 /* locked by wrklock */
229 struct worker *prev, *next;
230
231 thread_t tid;
232
233 /* locked by reslock, reqlock or wrklock */
234 aio_req req; /* currently processed request */
235 void *dbuf;
236 DIR *dirp;
237} worker;
238
239static worker wrk_first = { &wrk_first, &wrk_first, 0 };
240
241static void worker_clear (worker *wrk)
242{
243 if (wrk->dirp)
244 { 224 {
245 closedir (wrk->dirp); 225 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
246 wrk->dirp = 0; 226 char scratch[3072];
247 } 227 struct fiemap *incmap = (struct fiemap *)scratch;
248 228
249 if (wrk->dbuf) 229 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
250 { 230 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
251 free (wrk->dbuf); 231 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
252 wrk->dbuf = 0; 232 incmap->fm_flags = fiemap->fm_flags;
253 } 233 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
254}
255 234
256static void worker_free (worker *wrk) 235 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
257{
258 wrk->next->prev = wrk->prev;
259 wrk->prev->next = wrk->next;
260
261 free (wrk);
262}
263
264static volatile unsigned int nreqs, nready, npending;
265static volatile unsigned int max_idle = 4;
266static volatile unsigned int max_outstanding = 0xffffffff;
267static int respipe [2];
268
269static mutex_t reslock = X_MUTEX_INIT;
270static mutex_t reqlock = X_MUTEX_INIT;
271static cond_t reqwait = X_COND_INIT;
272
273#if WORDACCESS_UNSAFE
274
275static unsigned int get_nready ()
276{
277 unsigned int retval;
278
279 X_LOCK (reqlock);
280 retval = nready;
281 X_UNLOCK (reqlock);
282
283 return retval;
284}
285
286static unsigned int get_npending ()
287{
288 unsigned int retval;
289
290 X_LOCK (reslock);
291 retval = npending;
292 X_UNLOCK (reslock);
293
294 return retval;
295}
296
297static unsigned int get_nthreads ()
298{
299 unsigned int retval;
300
301 X_LOCK (wrklock);
302 retval = started;
303 X_UNLOCK (wrklock);
304
305 return retval;
306}
307
308#else
309
310# define get_nready() nready
311# define get_npending() npending
312# define get_nthreads() started
313
314#endif
315
316/*
317 * a somewhat faster data structure might be nice, but
318 * with 8 priorities this actually needs <20 insns
319 * per shift, the most expensive operation.
320 */
321typedef struct {
322 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
323 int size;
324} reqq;
325
326static reqq req_queue;
327static reqq res_queue;
328
329int reqq_push (reqq *q, aio_req req)
330{
331 int pri = req->pri;
332 req->next = 0;
333
334 if (q->qe[pri])
335 {
336 q->qe[pri]->next = req;
337 q->qe[pri] = req;
338 }
339 else
340 q->qe[pri] = q->qs[pri] = req;
341
342 return q->size++;
343}
344
345aio_req reqq_shift (reqq *q)
346{
347 int pri;
348
349 if (!q->size)
350 return 0; 236 return;
351 237
352 --q->size; 238 if (!incmap->fm_mapped_extents)
239 goto done;
353 240
354 for (pri = NUM_PRI; pri--; ) 241 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
355 { 242 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
356 aio_req req = q->qs[pri]; 243 errno = ENOMEM;
357
358 if (req) 244 if (!fiemap)
245 return;
246
247 req->ptr1 = fiemap;
248
249 for (count = 0; count < incmap->fm_mapped_extents; ++count)
359 { 250 {
360 if (!(q->qs[pri] = req->next)) 251 struct fiemap_extent *e = incmap->fm_extents + count;
361 q->qe[pri] = 0;
362 252
363 return req; 253 if (e->fe_logical + e->fe_length >= end_offset)
254 goto done;
255
256 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
257
258 if (e->fe_flags & FIEMAP_EXTENT_LAST)
259 goto done;
260
364 } 261 }
365 } 262 }
366 263
367 abort (); 264done:
368} 265 req->result = 0;
369 266
370static int poll_cb (); 267#else
371static int req_invoke (aio_req req); 268 errno = ENOSYS;
269#endif
270}
271
272/*****************************************************************************/
273
274enum {
275 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
276};
277
278typedef eio_req *aio_req;
279typedef eio_req *aio_req_ornot;
280typedef eio_wd aio_wd;
281
282static SV *on_next_submit;
283static int next_pri = EIO_PRI_DEFAULT;
284static int max_outstanding;
285
286static s_epipe respipe;
287
372static void req_destroy (aio_req req); 288static void req_destroy (aio_req req);
373static void req_cancel (aio_req req); 289static void req_cancel (aio_req req);
374 290
291static void
292want_poll (void)
293{
294 /* write a dummy byte to the pipe so fh becomes ready */
295 s_epipe_signal (&respipe);
296}
297
298static void
299done_poll (void)
300{
301 /* read any signals sent by the worker threads */
302 s_epipe_drain (&respipe);
303}
304
375/* must be called at most once */ 305/* must be called at most once */
376static SV *req_sv (aio_req req, const char *klass) 306static SV *
307req_sv (aio_req req, HV *stash)
377{ 308{
378 if (!req->self) 309 if (!req->self)
379 { 310 {
380 req->self = (SV *)newHV (); 311 req->self = (SV *)newHV ();
381 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 312 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
382 } 313 }
383 314
384 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 315 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
385} 316}
386 317
387static aio_req SvAIO_REQ (SV *sv) 318static SV *
319newSVaio_wd (aio_wd wd)
320{
321 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
322}
323
324static aio_req
325SvAIO_REQ (SV *sv)
388{ 326{
389 MAGIC *mg; 327 MAGIC *mg;
390 328
391 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 329 if (!SvROK (sv)
330 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
331 || (SvSTASH (SvRV (sv)) != aio_grp_stash
332 && SvSTASH (SvRV (sv)) != aio_req_stash
333 && !sv_derived_from (sv, "IO::AIO::REQ")))
392 croak ("object of class " AIO_REQ_KLASS " expected"); 334 croak ("object of class IO::AIO::REQ expected");
393 335
394 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 336 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
395 337
396 return mg ? (aio_req)mg->mg_ptr : 0; 338 return mg ? (aio_req)mg->mg_ptr : 0;
397} 339}
398 340
341static aio_wd
342SvAIO_WD (SV *sv)
343{
344 if (!SvROK (sv)
345 || SvTYPE (SvRV (sv)) != SVt_PVMG
346 || SvSTASH (SvRV (sv)) != aio_wd_stash)
347 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
348
349 return (aio_wd)(long)SvIVX (SvRV (sv));
350}
351
352static SV *
353newmortalFH (int fd, int flags)
354{
355 if (fd < 0)
356 return &PL_sv_undef;
357
358 GV *gv = (GV *)sv_newmortal ();
359 char sym[64];
360 int symlen;
361
362 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
363 gv_init (gv, aio_stash, sym, symlen, 0);
364
365 symlen = snprintf (
366 sym,
367 sizeof (sym),
368 "%s&=%d",
369 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
370 fd
371 );
372
373 return do_open (gv, sym, symlen, 0, 0, 0, 0)
374 ? (SV *)gv : &PL_sv_undef;
375}
376
377static void
399static void aio_grp_feed (aio_req grp) 378aio_grp_feed (aio_req grp)
400{ 379{
401 block_sig (); 380 if (grp->sv2 && SvOK (grp->sv2))
402
403 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
404 { 381 {
405 int old_len = grp->size;
406
407 if (grp->sv2 && SvOK (grp->sv2))
408 {
409 dSP; 382 dSP;
410 383
411 ENTER; 384 ENTER;
412 SAVETMPS; 385 SAVETMPS;
413 PUSHMARK (SP); 386 PUSHMARK (SP);
414 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 387 XPUSHs (req_sv (grp, aio_grp_stash));
415 PUTBACK; 388 PUTBACK;
416 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 389 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
417 SPAGAIN; 390 SPAGAIN;
418 FREETMPS; 391 FREETMPS;
419 LEAVE; 392 LEAVE;
420 }
421
422 /* stop if no progress has been made */
423 if (old_len == grp->size)
424 {
425 SvREFCNT_dec (grp->sv2);
426 grp->sv2 = 0;
427 break;
428 }
429 } 393 }
430
431 unblock_sig ();
432} 394}
433 395
434static void aio_grp_dec (aio_req grp) 396static void
397req_submit (eio_req *req)
435{ 398{
436 --grp->size; 399 eio_submit (req);
437 400
438 /* call feeder, if applicable */ 401 if (expect_false (on_next_submit))
439 aio_grp_feed (grp);
440
441 /* finish, if done */
442 if (!grp->size && grp->int1)
443 { 402 {
444 block_sig (); 403 dSP;
404 SV *cb = sv_2mortal (on_next_submit);
445 405
446 if (!req_invoke (grp)) 406 on_next_submit = 0;
447 {
448 req_destroy (grp);
449 unblock_sig ();
450 croak (0);
451 }
452 407
453 req_destroy (grp); 408 PUSHMARK (SP);
454 unblock_sig (); 409 PUTBACK;
410 call_sv (cb, G_DISCARD | G_EVAL);
455 } 411 }
456} 412}
457 413
414static int
458static int req_invoke (aio_req req) 415req_invoke (eio_req *req)
459{ 416{
460 dSP;
461
462 if (req->flags & FLAG_SV2_RO_OFF) 417 if (req->flags & FLAG_SV2_RO_OFF)
463 SvREADONLY_off (req->sv2); 418 SvREADONLY_off (req->sv2);
464 419
465 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 420 if (!EIO_CANCELLED (req) && req->callback)
466 { 421 {
422 dSP;
423 static SV *sv_result_cache; /* caches the result integer SV */
424 SV *sv_result;
425
467 ENTER; 426 ENTER;
468 SAVETMPS; 427 SAVETMPS;
469 PUSHMARK (SP); 428 PUSHMARK (SP);
470 EXTEND (SP, 1); 429 EXTEND (SP, 1);
471 430
431 /* do not recreate the result IV from scratch each time */
432 if (expect_true (sv_result_cache))
433 {
434 sv_result = sv_result_cache; sv_result_cache = 0;
435 SvIV_set (sv_result, req->result);
436 SvIOK_only (sv_result);
437 }
438 else
439 {
440 sv_result = newSViv (req->result);
441 SvREADONLY_on (sv_result);
442 }
443
472 switch (req->type) 444 switch (req->type)
473 { 445 {
446 case EIO_WD_OPEN:
447 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
448 break;
449
474 case REQ_READDIR: 450 case EIO_READDIR:
475 { 451 {
476 SV *rv = &PL_sv_undef; 452 SV *rv = &PL_sv_undef;
477 453
478 if (req->result >= 0) 454 if (req->result >= 0)
479 { 455 {
480 int i; 456 int i;
481 char *buf = req->ptr2; 457 char *names = (char *)req->ptr2;
458 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
482 AV *av = newAV (); 459 AV *av = newAV ();
483 460
484 av_extend (av, req->result - 1); 461 av_extend (av, req->result - 1);
485 462
486 for (i = 0; i < req->result; ++i) 463 for (i = 0; i < req->result; ++i)
487 { 464 {
488 SV *sv = newSVpv (buf, 0); 465 if (req->int1 & EIO_READDIR_DENTS)
466 {
467 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
489 468
469 if (req->int1 & EIO_READDIR_CUSTOM2)
470 {
471 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
472 AV *avent = newAV ();
473
474 av_extend (avent, 2);
475
476 if (!sv_type [ent->type])
477 {
478 sv_type [ent->type] = newSViv (ent->type);
479 SvREADONLY_on (sv_type [ent->type]);
480 }
481
482 av_store (avent, 0, namesv);
483 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
484 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
485
486 av_store (av, i, newRV_noinc ((SV *)avent));
487 }
488 else
490 av_store (av, i, sv); 489 av_store (av, i, namesv);
490
491 ++ent;
492 }
493 else
494 {
495 SV *name = newSVpv (names, 0);
496 av_store (av, i, name);
491 buf += SvCUR (sv) + 1; 497 names += SvCUR (name) + 1;
498 }
492 } 499 }
493 500
494 rv = sv_2mortal (newRV_noinc ((SV *)av)); 501 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 } 502 }
496 503
497 PUSHs (rv); 504 PUSHs (rv);
505
506 if (req->int1 & EIO_READDIR_CUSTOM1)
507 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
498 } 508 }
499 break; 509 break;
500 510
501 case REQ_OPEN: 511 case EIO_OPEN:
512 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
513 break;
514
515 case EIO_STATVFS:
516 case EIO_FSTATVFS:
502 { 517 {
503 /* convert fd to fh */ 518 SV *rv = &PL_sv_undef;
504 SV *fh; 519
520#ifndef _WIN32
521 if (req->result >= 0)
522 {
523 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
524 HV *hv = newHV ();
525 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
526 * chooses to make it a struct.
527 */
528 unsigned long fsid = 0;
529 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
505 530
506 PUSHs (sv_2mortal (newSViv (req->result))); 531 rv = sv_2mortal (newRV_noinc ((SV *)hv));
507 PUTBACK;
508 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
509 SPAGAIN;
510 532
511 fh = POPs; 533 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
512 PUSHMARK (SP); 534 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
535 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
536 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
537 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
538 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
539 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
540 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
541 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
542 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
543 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
544 }
545#endif
546
513 XPUSHs (fh); 547 PUSHs (rv);
514 } 548 }
549
515 break; 550 break;
516 551
517 case REQ_GROUP: 552 case EIO_GROUP:
518 req->int1 = 2; /* mark group as finished */ 553 req->int1 = 2; /* mark group as finished */
519 554
520 if (req->sv1) 555 if (req->sv1)
521 { 556 {
522 int i; 557 int i;
… …
526 for (i = 0; i <= AvFILL (av); ++i) 561 for (i = 0; i <= AvFILL (av); ++i)
527 PUSHs (*av_fetch (av, i, 0)); 562 PUSHs (*av_fetch (av, i, 0));
528 } 563 }
529 break; 564 break;
530 565
531 case REQ_NOP: 566 case EIO_NOP:
532 case REQ_BUSY: 567 case EIO_BUSY:
533 break; 568 break;
534 569
535 case REQ_READLINK: 570 case EIO_READLINK:
571 case EIO_REALPATH:
536 if (req->result > 0) 572 if (req->result > 0)
573 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
574 break;
575
576 case EIO_STAT:
577 case EIO_LSTAT:
578 case EIO_FSTAT:
579 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
580
581 if (!(PL_laststatval = req->result))
582 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
583 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
584
585 PUSHs (sv_result);
586 break;
587
588 case EIO_SEEK:
589 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
590 break;
591
592 case EIO_READ:
593 {
594 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
595 *SvEND (req->sv2) = 0;
596 SvPOK_only (req->sv2);
597 SvSETMAGIC (req->sv2);
598 PUSHs (sv_result);
599 }
600 break;
601
602 case EIO_CUSTOM:
603 if (req->feed == fiemap)
537 { 604 {
538 SvCUR_set (req->sv2, req->result); 605#if HAVE_FIEMAP
539 *SvEND (req->sv2) = 0;
540 PUSHs (req->sv2); 606 if (!req->result)
607 {
608 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
609
610 if (fiemap->fm_extent_count)
611 {
612 AV *av = newAV ();
613 int i;
614
615 while (fiemap->fm_mapped_extents)
616 {
617 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
618 AV *ext_av = newAV ();
619
620 av_store (ext_av, 3, newSVuv (extent->fe_flags));
621 av_store (ext_av, 2, newSVval64 (extent->fe_length));
622 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
623 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
624
625 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
626 }
627
628 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
629 }
630 else
631 {
632 SvIV_set (sv_result, fiemap->fm_mapped_extents);
633 PUSHs (sv_result);
634 }
635 }
636#endif
541 } 637 }
638 else
639 PUSHs (sv_result);
542 break; 640 break;
543 641
544 case REQ_STAT: 642 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
545 case REQ_LSTAT: 643 if (req->result > 0)
546 case REQ_FSTAT: 644 SvIV_set (sv_result, 0);
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 645 /* FALLTHROUGH */
548 PL_laststatval = req->result;
549 PL_statcache = *(Stat_t *)(req->ptr2);
550 PUSHs (sv_2mortal (newSViv (req->result)));
551 break;
552
553 case REQ_READ:
554 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
555 *SvEND (req->sv2) = 0;
556 PUSHs (sv_2mortal (newSViv (req->result)));
557 break;
558 646
559 default: 647 default:
560 PUSHs (sv_2mortal (newSViv (req->result))); 648 PUSHs (sv_result);
561 break; 649 break;
562 } 650 }
563 651
564 errno = req->errorno; 652 errno = req->errorno;
565 653
566 PUTBACK; 654 PUTBACK;
567 call_sv (req->callback, G_VOID | G_EVAL); 655 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
568 SPAGAIN; 656 SPAGAIN;
657
658 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
659 SvREFCNT_dec (sv_result);
660 else
661 sv_result_cache = sv_result;
569 662
570 FREETMPS; 663 FREETMPS;
571 LEAVE; 664 LEAVE;
665
666 PUTBACK;
572 } 667 }
573 668
574 if (req->grp)
575 {
576 aio_req grp = req->grp;
577
578 /* unlink request */
579 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
580 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
581
582 if (grp->grp_first == req)
583 grp->grp_first = req->grp_next;
584
585 aio_grp_dec (grp);
586 }
587
588 return !SvTRUE (ERRSV); 669 return !!SvTRUE (ERRSV);
589} 670}
590 671
672static void
591static void req_destroy (aio_req req) 673req_destroy (aio_req req)
592{ 674{
593 if (req->self) 675 if (req->self)
594 { 676 {
595 sv_unmagic (req->self, PERL_MAGIC_ext); 677 sv_unmagic (req->self, PERL_MAGIC_ext);
596 SvREFCNT_dec (req->self); 678 SvREFCNT_dec (req->self);
597 } 679 }
598 680
599 SvREFCNT_dec (req->sv1); 681 SvREFCNT_dec (req->sv1);
600 SvREFCNT_dec (req->sv2); 682 SvREFCNT_dec (req->sv2);
683 SvREFCNT_dec (req->sv3);
684 SvREFCNT_dec (req->sv4);
601 SvREFCNT_dec (req->callback); 685 SvREFCNT_dec (req->callback);
602 686
603 if (req->flags & FLAG_PTR2_FREE)
604 free (req->ptr2);
605
606 Safefree (req); 687 free (req);
607} 688}
608 689
690static void
609static void req_cancel_subs (aio_req grp) 691req_cancel_subs (aio_req grp)
610{ 692{
611 aio_req sub;
612
613 if (grp->type != REQ_GROUP) 693 if (grp->type != EIO_GROUP)
614 return; 694 return;
615 695
616 SvREFCNT_dec (grp->sv2); 696 SvREFCNT_dec (grp->sv2);
617 grp->sv2 = 0; 697 grp->sv2 = 0;
618 698
619 for (sub = grp->grp_first; sub; sub = sub->grp_next) 699 eio_grp_cancel (grp);
620 req_cancel (sub);
621} 700}
622 701
623static void req_cancel (aio_req req) 702static void ecb_cold
703create_respipe (void)
624{ 704{
625 req->flags |= FLAG_CANCELLED; 705 if (s_epipe_renew (&respipe))
626 706 croak ("IO::AIO: unable to initialize result pipe");
627 req_cancel_subs (req);
628} 707}
629 708
630X_THREAD_PROC (aio_proc); 709static void
631 710poll_wait (void)
632static void start_thread (void)
633{ 711{
634 worker *wrk = calloc (1, sizeof (worker));
635
636 if (!wrk)
637 croak ("unable to allocate worker thread data");
638
639 X_LOCK (wrklock);
640
641 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
642 {
643 wrk->prev = &wrk_first;
644 wrk->next = wrk_first.next;
645 wrk_first.next->prev = wrk;
646 wrk_first.next = wrk;
647 ++started;
648 }
649 else
650 free (wrk);
651
652 X_UNLOCK (wrklock);
653}
654
655static void maybe_start_thread ()
656{
657 if (get_nthreads () >= wanted)
658 return;
659
660 /* todo: maybe use idle here, but might be less exact */
661 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
662 return;
663
664 start_thread ();
665}
666
667static void req_send (aio_req req)
668{
669 block_sig ();
670
671 ++nreqs;
672
673 X_LOCK (reqlock);
674 ++nready;
675 reqq_push (&req_queue, req);
676 X_COND_SIGNAL (reqwait);
677 X_UNLOCK (reqlock);
678
679 unblock_sig ();
680
681 maybe_start_thread ();
682}
683
684static void end_thread (void)
685{
686 aio_req req;
687
688 Newz (0, req, 1, aio_cb);
689
690 req->type = REQ_QUIT;
691 req->pri = PRI_MAX + PRI_BIAS;
692
693 X_LOCK (reqlock);
694 reqq_push (&req_queue, req);
695 X_COND_SIGNAL (reqwait);
696 X_UNLOCK (reqlock);
697
698 X_LOCK (wrklock);
699 --started;
700 X_UNLOCK (wrklock);
701}
702
703static void set_max_idle (int nthreads)
704{
705 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
706 max_idle = nthreads <= 0 ? 1 : nthreads;
707 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
708}
709
710static void min_parallel (int nthreads)
711{
712 if (wanted < nthreads)
713 wanted = nthreads;
714}
715
716static void max_parallel (int nthreads)
717{
718 if (wanted > nthreads)
719 wanted = nthreads;
720
721 while (started > wanted)
722 end_thread ();
723}
724
725static void poll_wait ()
726{
727 fd_set rfd;
728
729 while (nreqs) 712 while (eio_nreqs ())
730 { 713 {
731 int size; 714 int size;
732 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 715
716 X_LOCK (EIO_POOL->reslock);
733 size = res_queue.size; 717 size = EIO_POOL->res_queue.size;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 718 X_UNLOCK (EIO_POOL->reslock);
735 719
736 if (size) 720 if (size)
737 return; 721 return;
738 722
739 maybe_start_thread (); 723 etp_maybe_start_thread (EIO_POOL);
740 724
741 FD_ZERO(&rfd); 725 s_epipe_wait (&respipe);
742 FD_SET(respipe [0], &rfd);
743
744 select (respipe [0] + 1, &rfd, 0, 0, 0);
745 } 726 }
746} 727}
747 728
748static int poll_cb () 729static int
730poll_cb (void)
749{ 731{
750 dSP;
751 int count = 0;
752 int maxreqs = max_poll_reqs;
753 int do_croak = 0;
754 struct timeval tv_start, tv_now;
755 aio_req req;
756
757 if (max_poll_time)
758 gettimeofday (&tv_start, 0);
759
760 block_sig ();
761
762 for (;;) 732 for (;;)
763 { 733 {
764 for (;;) 734 int res = eio_poll ();
735
736 if (res > 0)
737 croak (0);
738
739 if (!max_outstanding || max_outstanding > eio_nreqs ())
740 return res;
741
742 poll_wait ();
743 }
744}
745
746static void ecb_cold
747reinit (void)
748{
749 create_respipe ();
750
751 if (eio_init (want_poll, done_poll) < 0)
752 croak ("IO::AIO: unable to initialise eio library");
753}
754
755/*****************************************************************************/
756
757#if !_POSIX_MAPPED_FILES
758# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
759# define munmap(addr,length) EIO_ENOSYS ()
760#endif
761
762#if !_POSIX_MEMORY_PROTECTION
763# define mprotect(addr,len,prot) EIO_ENOSYS ()
764#endif
765
766#define MMAP_MAGIC PERL_MAGIC_ext
767
768static int ecb_cold
769mmap_free (pTHX_ SV *sv, MAGIC *mg)
770{
771 int old_errno = errno;
772 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
773 errno = old_errno;
774
775 mg->mg_obj = 0; /* just in case */
776
777 SvREADONLY_off (sv);
778
779 if (SvPVX (sv) != mg->mg_ptr)
780 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
781
782 SvCUR_set (sv, 0);
783 SvPVX (sv) = 0;
784 SvOK_off (sv);
785
786 return 0;
787}
788
789static MGVTBL mmap_vtbl = {
790 0, 0, 0, 0, mmap_free
791};
792
793/*****************************************************************************/
794
795static SV *
796get_cb (SV *cb_sv)
797{
798 SvGETMAGIC (cb_sv);
799 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
800}
801
802static aio_req ecb_noinline
803dreq (SV *callback)
804{
805 SV *cb_cv;
806 aio_req req;
807 int req_pri = next_pri;
808 next_pri = EIO_PRI_DEFAULT;
809
810 cb_cv = get_cb (callback);
811
812 req = calloc (sizeof (*req), 1);
813 if (!req)
814 croak ("out of memory during eio_req allocation");
815
816 req->callback = SvREFCNT_inc (cb_cv);
817 req->pri = req_pri;
818
819 return req;
820}
821
822#define dREQ \
823 aio_req req = dreq (callback); \
824
825#define REQ_SEND \
826 PUTBACK; \
827 req_submit (req); \
828 SPAGAIN; \
829 \
830 if (GIMME_V != G_VOID) \
831 XPUSHs (req_sv (req, aio_req_stash));
832
833ecb_inline void
834req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
835{
836 if (expect_false (SvROK (path)))
837 {
838 SV *rv = SvRV (path);
839 SV *wdob;
840
841 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
765 { 842 {
766 maybe_start_thread (); 843 path = AvARRAY (rv)[1];
844 wdob = AvARRAY (rv)[0];
767 845
768 X_LOCK (reslock); 846 if (SvOK (wdob))
769 req = reqq_shift (&res_queue);
770
771 if (req)
772 { 847 {
773 --npending; 848 *wd = SvAIO_WD (wdob);
774 849 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
775 if (!res_queue.size)
776 {
777 /* read any signals sent by the worker threads */
778 char buf [4];
779 while (read (respipe [0], buf, 4) == 4)
780 ;
781 }
782 }
783
784 X_UNLOCK (reslock);
785
786 if (!req)
787 break;
788
789 --nreqs;
790
791 if (req->type == REQ_GROUP && req->size)
792 {
793 req->int1 = 1; /* mark request as delayed */
794 continue;
795 } 850 }
796 else 851 else
797 { 852 *wd = EIO_INVALID_WD;
798 if (!req_invoke (req))
799 {
800 req_destroy (req);
801 unblock_sig ();
802 croak (0);
803 }
804
805 count++;
806 }
807
808 req_destroy (req);
809
810 if (maxreqs && !--maxreqs)
811 break;
812
813 if (max_poll_time)
814 {
815 gettimeofday (&tv_now, 0);
816
817 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
818 break;
819 }
820 } 853 }
854 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
855 {
856 *wd = (aio_wd)(long)SvIVX (rv);
857 *wdsv = SvREFCNT_inc_NN (rv);
858 *ptr = ".";
859 return; /* path set to "." */
860 }
861 else
862 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
863 }
821 864
822 if (nreqs <= max_outstanding) 865 *pathsv = newSVsv (path);
866 *ptr = SvPVbyte_nolen (*pathsv);
867}
868
869static void ecb_noinline
870req_set_path1 (aio_req req, SV *path)
871{
872 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
873}
874
875static void ecb_noinline
876req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
877{
878 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
879
880 switch (SvTYPE (rv))
881 {
882 case SVt_PVIO:
883 case SVt_PVLV:
884 case SVt_PVGV:
885 req->type = type_fh;
886 req->sv1 = newSVsv (fh_or_path);
887 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823 break; 888 break;
824 889
825 poll_wait (); 890 default:
826 891 req->type = type_path;
827 ++maxreqs; 892 req_set_path1 (req, fh_or_path);
893 break;
828 } 894 }
829
830 unblock_sig ();
831 return count;
832} 895}
833 896
834/*****************************************************************************/ 897XS(boot_IO__AIO) ecb_cold;
835/* work around various missing functions */
836 898
837#if !HAVE_PREADWRITE
838# define pread aio_pread
839# define pwrite aio_pwrite
840
841/*
842 * make our pread/pwrite safe against themselves, but not against
843 * normal read/write by using a mutex. slows down execution a lot,
844 * but that's your problem, not mine.
845 */
846static mutex_t preadwritelock = X_MUTEX_INIT;
847
848static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
849{
850 ssize_t res;
851 off_t ooffset;
852
853 X_LOCK (preadwritelock);
854 ooffset = lseek (fd, 0, SEEK_CUR);
855 lseek (fd, offset, SEEK_SET);
856 res = read (fd, buf, count);
857 lseek (fd, ooffset, SEEK_SET);
858 X_UNLOCK (preadwritelock);
859
860 return res;
861}
862
863static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
864{
865 ssize_t res;
866 off_t ooffset;
867
868 X_LOCK (preadwritelock);
869 ooffset = lseek (fd, 0, SEEK_CUR);
870 lseek (fd, offset, SEEK_SET);
871 res = write (fd, buf, count);
872 lseek (fd, offset, SEEK_SET);
873 X_UNLOCK (preadwritelock);
874
875 return res;
876}
877#endif
878
879#ifndef HAVE_FUTIMES
880
881# define utimes(path,times) aio_utimes (path, times)
882# define futimes(fd,times) aio_futimes (fd, times)
883
884int aio_utimes (const char *filename, const struct timeval times[2])
885{
886 if (times)
887 {
888 struct utimbuf buf;
889
890 buf.actime = times[0].tv_sec;
891 buf.modtime = times[1].tv_sec;
892
893 return utime (filename, &buf);
894 }
895 else
896 return utime (filename, 0);
897}
898
899int aio_futimes (int fd, const struct timeval tv[2])
900{
901 errno = ENOSYS;
902 return -1;
903}
904
905#endif
906
907#if !HAVE_FDATASYNC
908# define fdatasync fsync
909#endif
910
911#if !HAVE_READAHEAD
912# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
913
914static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
915{
916 size_t todo = count;
917 dBUF;
918
919 while (todo > 0)
920 {
921 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
922
923 pread (fd, aio_buf, len, offset);
924 offset += len;
925 todo -= len;
926 }
927
928 errno = 0;
929 return count;
930}
931
932#endif
933
934#if !HAVE_READDIR_R
935# define readdir_r aio_readdir_r
936
937static mutex_t readdirlock = X_MUTEX_INIT;
938
939static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
940{
941 X_DIRENT *e;
942 int errorno;
943
944 X_LOCK (readdirlock);
945
946 e = readdir (dirp);
947 errorno = errno;
948
949 if (e)
950 {
951 *res = ent;
952 strcpy (ent->d_name, e->d_name);
953 }
954 else
955 *res = 0;
956
957 X_UNLOCK (readdirlock);
958
959 errno = errorno;
960 return e ? 0 : -1;
961}
962#endif
963
964/* sendfile always needs emulation */
965static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
966{
967 ssize_t res;
968
969 if (!count)
970 return 0;
971
972#if HAVE_SENDFILE
973# if __linux
974 res = sendfile (ofd, ifd, &offset, count);
975
976# elif __freebsd
977 /*
978 * Of course, the freebsd sendfile is a dire hack with no thoughts
979 * wasted on making it similar to other I/O functions.
980 */
981 {
982 off_t sbytes;
983 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
984
985 if (res < 0 && sbytes)
986 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
987 res = sbytes;
988 }
989
990# elif __hpux
991 res = sendfile (ofd, ifd, offset, count, 0, 0);
992
993# elif __solaris
994 {
995 struct sendfilevec vec;
996 size_t sbytes;
997
998 vec.sfv_fd = ifd;
999 vec.sfv_flag = 0;
1000 vec.sfv_off = offset;
1001 vec.sfv_len = count;
1002
1003 res = sendfilev (ofd, &vec, 1, &sbytes);
1004
1005 if (res < 0 && sbytes)
1006 res = sbytes;
1007 }
1008
1009# endif
1010#else
1011 res = -1;
1012 errno = ENOSYS;
1013#endif
1014
1015 if (res < 0
1016 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1017#if __solaris
1018 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1019#endif
1020 )
1021 )
1022 {
1023 /* emulate sendfile. this is a major pain in the ass */
1024 dBUF;
1025
1026 res = 0;
1027
1028 while (count)
1029 {
1030 ssize_t cnt;
1031
1032 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1033
1034 if (cnt <= 0)
1035 {
1036 if (cnt && !res) res = -1;
1037 break;
1038 }
1039
1040 cnt = write (ofd, aio_buf, cnt);
1041
1042 if (cnt <= 0)
1043 {
1044 if (cnt && !res) res = -1;
1045 break;
1046 }
1047
1048 offset += cnt;
1049 res += cnt;
1050 count -= cnt;
1051 }
1052 }
1053
1054 return res;
1055}
1056
1057/* read a full directory */
1058static void scandir_ (aio_req req, worker *self)
1059{
1060 DIR *dirp;
1061 union
1062 {
1063 X_DIRENT d;
1064 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1065 } *u;
1066 X_DIRENT *entp;
1067 char *name, *names;
1068 int memlen = 4096;
1069 int memofs = 0;
1070 int res = 0;
1071
1072 X_LOCK (wrklock);
1073 self->dirp = dirp = opendir (req->ptr1);
1074 self->dbuf = u = malloc (sizeof (*u));
1075 req->flags |= FLAG_PTR2_FREE;
1076 req->ptr2 = names = malloc (memlen);
1077 X_UNLOCK (wrklock);
1078
1079 if (dirp && u && names)
1080 for (;;)
1081 {
1082 errno = 0;
1083 readdir_r (dirp, &u->d, &entp);
1084
1085 if (!entp)
1086 break;
1087
1088 name = entp->d_name;
1089
1090 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1091 {
1092 int len = strlen (name) + 1;
1093
1094 res++;
1095
1096 while (memofs + len > memlen)
1097 {
1098 memlen *= 2;
1099 X_LOCK (wrklock);
1100 req->ptr2 = names = realloc (names, memlen);
1101 X_UNLOCK (wrklock);
1102
1103 if (!names)
1104 break;
1105 }
1106
1107 memcpy (names + memofs, name, len);
1108 memofs += len;
1109 }
1110 }
1111
1112 if (errno)
1113 res = -1;
1114
1115 req->result = res;
1116}
1117
1118/*****************************************************************************/
1119
1120X_THREAD_PROC (aio_proc)
1121{
1122 {//D
1123 aio_req req;
1124 struct timespec ts;
1125 worker *self = (worker *)thr_arg;
1126
1127 /* try to distribute timeouts somewhat randomly */
1128 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1129
1130 for (;;)
1131 {
1132 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1133
1134 X_LOCK (reqlock);
1135
1136 for (;;)
1137 {
1138 self->req = req = reqq_shift (&req_queue);
1139
1140 if (req)
1141 break;
1142
1143 ++idle;
1144
1145 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1146 == ETIMEDOUT)
1147 {
1148 if (idle > max_idle)
1149 {
1150 --idle;
1151 X_UNLOCK (reqlock);
1152 X_LOCK (wrklock);
1153 --started;
1154 X_UNLOCK (wrklock);
1155 goto quit;
1156 }
1157
1158 /* we are allowed to idle, so do so without any timeout */
1159 X_COND_WAIT (reqwait, reqlock);
1160 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1161 }
1162
1163 --idle;
1164 }
1165
1166 --nready;
1167
1168 X_UNLOCK (reqlock);
1169
1170 errno = 0; /* strictly unnecessary */
1171
1172 if (!(req->flags & FLAG_CANCELLED))
1173 switch (req->type)
1174 {
1175 case REQ_READ: req->result = req->offs >= 0
1176 ? pread (req->int1, req->ptr1, req->size, req->offs)
1177 : read (req->int1, req->ptr1, req->size); break;
1178 case REQ_WRITE: req->result = req->offs >= 0
1179 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1180 : write (req->int1, req->ptr1, req->size); break;
1181
1182 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1183 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1184
1185 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1186 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1187 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1188
1189 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1190 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1191 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1192 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1193 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1194 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1195
1196 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1197 case REQ_CLOSE: req->result = close (req->int1); break;
1198 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1199 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1200 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1201 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1202 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1203 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1204 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1205 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1206
1207 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1208 case REQ_FSYNC: req->result = fsync (req->int1); break;
1209 case REQ_READDIR: scandir_ (req, self); break;
1210
1211 case REQ_BUSY:
1212#ifdef _WIN32
1213 Sleep (req->nv1 * 1000.);
1214#else
1215 {
1216 struct timeval tv;
1217
1218 tv.tv_sec = req->nv1;
1219 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1220
1221 req->result = select (0, 0, 0, 0, &tv);
1222 }
1223#endif
1224 break;
1225
1226 case REQ_UTIME:
1227 case REQ_FUTIME:
1228 {
1229 struct timeval tv[2];
1230 struct timeval *times;
1231
1232 if (req->nv1 != -1. || req->nv2 != -1.)
1233 {
1234 tv[0].tv_sec = req->nv1;
1235 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1236 tv[1].tv_sec = req->nv2;
1237 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1238
1239 times = tv;
1240 }
1241 else
1242 times = 0;
1243
1244
1245 req->result = req->type == REQ_FUTIME
1246 ? futimes (req->int1, times)
1247 : utimes (req->ptr1, times);
1248 }
1249
1250 case REQ_GROUP:
1251 case REQ_NOP:
1252 break;
1253
1254 case REQ_QUIT:
1255 goto quit;
1256
1257 default:
1258 req->result = -1;
1259 break;
1260 }
1261
1262 req->errorno = errno;
1263
1264 X_LOCK (reslock);
1265
1266 ++npending;
1267
1268 if (!reqq_push (&res_queue, req))
1269 {
1270 /* write a dummy byte to the pipe so fh becomes ready */
1271 write (respipe [1], &respipe, 1);
1272
1273 /* optionally signal the main thread asynchronously */
1274 if (main_sig)
1275 pthread_kill (main_tid, main_sig);
1276 }
1277
1278 self->req = 0;
1279 worker_clear (self);
1280
1281 X_UNLOCK (reslock);
1282 }
1283
1284quit:
1285 X_LOCK (wrklock);
1286 worker_free (self);
1287 X_UNLOCK (wrklock);
1288
1289 return 0;
1290 }//D
1291}
1292
1293/*****************************************************************************/
1294
1295static void atfork_prepare (void)
1296{
1297 X_LOCK (wrklock);
1298 X_LOCK (reqlock);
1299 X_LOCK (reslock);
1300#if !HAVE_PREADWRITE
1301 X_LOCK (preadwritelock);
1302#endif
1303#if !HAVE_READDIR_R
1304 X_LOCK (readdirlock);
1305#endif
1306}
1307
1308static void atfork_parent (void)
1309{
1310#if !HAVE_READDIR_R
1311 X_UNLOCK (readdirlock);
1312#endif
1313#if !HAVE_PREADWRITE
1314 X_UNLOCK (preadwritelock);
1315#endif
1316 X_UNLOCK (reslock);
1317 X_UNLOCK (reqlock);
1318 X_UNLOCK (wrklock);
1319}
1320
1321static void atfork_child (void)
1322{
1323 aio_req prv;
1324
1325 while (prv = reqq_shift (&req_queue))
1326 req_destroy (prv);
1327
1328 while (prv = reqq_shift (&res_queue))
1329 req_destroy (prv);
1330
1331 while (wrk_first.next != &wrk_first)
1332 {
1333 worker *wrk = wrk_first.next;
1334
1335 if (wrk->req)
1336 req_destroy (wrk->req);
1337
1338 worker_clear (wrk);
1339 worker_free (wrk);
1340 }
1341
1342 started = 0;
1343 idle = 0;
1344 nreqs = 0;
1345 nready = 0;
1346 npending = 0;
1347
1348 close (respipe [0]);
1349 close (respipe [1]);
1350
1351 if (!create_pipe (respipe))
1352 croak ("cannot set result pipe to nonblocking mode");
1353
1354 atfork_parent ();
1355}
1356
1357#define dREQ \
1358 aio_req req; \
1359 int req_pri = next_pri; \
1360 next_pri = DEFAULT_PRI + PRI_BIAS; \
1361 \
1362 if (SvOK (callback) && !SvROK (callback)) \
1363 croak ("callback must be undef or of reference type"); \
1364 \
1365 Newz (0, req, 1, aio_cb); \
1366 if (!req) \
1367 croak ("out of memory during aio_req allocation"); \
1368 \
1369 req->callback = newSVsv (callback); \
1370 req->pri = req_pri
1371
1372#define REQ_SEND \
1373 req_send (req); \
1374 \
1375 if (GIMME_V != G_VOID) \
1376 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1377
1378MODULE = IO::AIO PACKAGE = IO::AIO 899MODULE = IO::AIO PACKAGE = IO::AIO
1379 900
1380PROTOTYPES: ENABLE 901PROTOTYPES: ENABLE
1381 902
1382BOOT: 903BOOT:
1383{ 904{
905 static const struct {
906 const char *name;
907 IV iv;
908 } *civ, const_iv[] = {
909# define const_niv(name, value) { # name, (IV) value },
910# define const_iv(name) { # name, (IV) name },
911# define const_eio(name) { # name, (IV) EIO_ ## name },
912
913 /* you have to re-run ./gendef0 after adding/removing any constants here */
914 /* the first block can be undef if missing */
915 const_iv (ENOSYS)
916 const_iv (EXDEV)
917 const_iv (EBADR)
918
919 /* for lseek */
920 const_iv (SEEK_DATA)
921 const_iv (SEEK_HOLE)
922
923 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
924 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
925 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
926 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
927 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
928 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
929
930 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
931 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
932 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
933 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
934 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
935
936 /* the second block will be 0 when missing */
937 const_iv (O_RDONLY)
938 const_iv (O_WRONLY)
939 const_iv (O_RDWR)
940 const_iv (O_CREAT)
941 const_iv (O_TRUNC)
942 const_iv (O_EXCL)
943 const_iv (O_APPEND)
944
945 const_iv (O_ASYNC)
946 const_iv (O_DIRECT)
947 const_iv (O_NOATIME)
948
949 const_iv (O_CLOEXEC)
950 const_iv (O_NOCTTY)
951 const_iv (O_NOFOLLOW)
952 const_iv (O_NONBLOCK)
953 const_iv (O_EXEC)
954 const_iv (O_SEARCH)
955 const_iv (O_DIRECTORY)
956 const_iv (O_DSYNC)
957 const_iv (O_RSYNC)
958 const_iv (O_SYNC)
959 const_iv (O_PATH)
960 const_iv (O_TMPFILE)
961 const_iv (O_TTY_INIT)
962
963 const_iv (S_IFIFO)
964 const_iv (S_IFCHR)
965 const_iv (S_IFBLK)
966 const_iv (S_IFLNK)
967 const_iv (S_IFREG)
968 const_iv (S_IFDIR)
969 const_iv (S_IFWHT)
970 const_iv (S_IFSOCK)
971 const_iv (S_IFMT)
972
973 const_iv (ST_RDONLY)
974 const_iv (ST_NOSUID)
975 const_iv (ST_NODEV)
976 const_iv (ST_NOEXEC)
977 const_iv (ST_SYNCHRONOUS)
978 const_iv (ST_MANDLOCK)
979 const_iv (ST_WRITE)
980 const_iv (ST_APPEND)
981 const_iv (ST_IMMUTABLE)
982 const_iv (ST_NOATIME)
983 const_iv (ST_NODIRATIME)
984 const_iv (ST_RELATIME)
985
986 const_iv (PROT_NONE)
987 const_iv (PROT_EXEC)
988 const_iv (PROT_READ)
989 const_iv (PROT_WRITE)
990
991 const_iv (MAP_PRIVATE)
992 const_iv (MAP_SHARED)
993 const_iv (MAP_FIXED)
994 const_iv (MAP_ANONYMOUS)
995
996 /* linuxish */
997 const_iv (MAP_LOCKED)
998 const_iv (MAP_NORESERVE)
999 const_iv (MAP_POPULATE)
1000 const_iv (MAP_NONBLOCK)
1001 const_iv (MAP_GROWSDOWN)
1002 const_iv (MAP_32BIT)
1003 const_iv (MAP_HUGETLB)
1004 const_iv (MAP_STACK)
1005
1006 const_iv (F_DUPFD_CLOEXEC)
1007
1008 const_iv (F_OFD_GETLK)
1009 const_iv (F_OFD_SETLK)
1010 const_iv (F_OFD_GETLKW)
1011
1012 const_iv (FIFREEZE)
1013 const_iv (FITHAW)
1014 const_iv (FITRIM)
1015 const_iv (FICLONE)
1016 const_iv (FICLONERANGE)
1017 const_iv (FIDEDUPERANGE)
1018
1019 const_iv (FS_IOC_GETFLAGS)
1020 const_iv (FS_IOC_SETFLAGS)
1021 const_iv (FS_IOC_GETVERSION)
1022 const_iv (FS_IOC_SETVERSION)
1023 const_iv (FS_IOC_FIEMAP)
1024 const_iv (FS_IOC_FSGETXATTR)
1025 const_iv (FS_IOC_FSSETXATTR)
1026 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1027 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1028 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1029
1030 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1031
1032 const_iv (FS_SECRM_FL)
1033 const_iv (FS_UNRM_FL)
1034 const_iv (FS_COMPR_FL)
1035 const_iv (FS_SYNC_FL)
1036 const_iv (FS_IMMUTABLE_FL)
1037 const_iv (FS_APPEND_FL)
1038 const_iv (FS_NODUMP_FL)
1039 const_iv (FS_NOATIME_FL)
1040 const_iv (FS_DIRTY_FL)
1041 const_iv (FS_COMPRBLK_FL)
1042 const_iv (FS_NOCOMP_FL)
1043 const_iv (FS_ENCRYPT_FL)
1044 const_iv (FS_BTREE_FL)
1045 const_iv (FS_INDEX_FL)
1046 const_iv (FS_JOURNAL_DATA_FL)
1047 const_iv (FS_NOTAIL_FL)
1048 const_iv (FS_DIRSYNC_FL)
1049 const_iv (FS_TOPDIR_FL)
1050 const_iv (FS_FL_USER_MODIFIABLE)
1051
1052 const_iv (FS_XFLAG_REALTIME)
1053 const_iv (FS_XFLAG_PREALLOC)
1054 const_iv (FS_XFLAG_IMMUTABLE)
1055 const_iv (FS_XFLAG_APPEND)
1056 const_iv (FS_XFLAG_SYNC)
1057 const_iv (FS_XFLAG_NOATIME)
1058 const_iv (FS_XFLAG_NODUMP)
1059 const_iv (FS_XFLAG_RTINHERIT)
1060 const_iv (FS_XFLAG_PROJINHERIT)
1061 const_iv (FS_XFLAG_NOSYMLINKS)
1062 const_iv (FS_XFLAG_EXTSIZE)
1063 const_iv (FS_XFLAG_EXTSZINHERIT)
1064 const_iv (FS_XFLAG_NODEFRAG)
1065 const_iv (FS_XFLAG_FILESTREAM)
1066 const_iv (FS_XFLAG_DAX)
1067 const_iv (FS_XFLAG_HASATTR)
1068
1069 const_iv (FIEMAP_FLAG_SYNC)
1070 const_iv (FIEMAP_FLAG_XATTR)
1071 const_iv (FIEMAP_FLAGS_COMPAT)
1072 const_iv (FIEMAP_EXTENT_LAST)
1073 const_iv (FIEMAP_EXTENT_UNKNOWN)
1074 const_iv (FIEMAP_EXTENT_DELALLOC)
1075 const_iv (FIEMAP_EXTENT_ENCODED)
1076 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1077 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1078 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1079 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1080 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1081 const_iv (FIEMAP_EXTENT_MERGED)
1082 const_iv (FIEMAP_EXTENT_SHARED)
1083
1084 const_iv (SPLICE_F_MOVE)
1085 const_iv (SPLICE_F_NONBLOCK)
1086 const_iv (SPLICE_F_MORE)
1087 const_iv (SPLICE_F_GIFT)
1088
1089 /* these are libeio constants, and are independent of gendef0 */
1090 const_eio (SEEK_SET)
1091 const_eio (SEEK_CUR)
1092 const_eio (SEEK_END)
1093
1094 const_eio (MCL_FUTURE)
1095 const_eio (MCL_CURRENT)
1096
1097 const_eio (MS_ASYNC)
1098 const_eio (MS_INVALIDATE)
1099 const_eio (MS_SYNC)
1100
1101 const_eio (MT_MODIFY)
1102
1103 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1104 const_eio (SYNC_FILE_RANGE_WRITE)
1105 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1106
1107 const_eio (FALLOC_FL_KEEP_SIZE)
1108 const_eio (FALLOC_FL_PUNCH_HOLE)
1109 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1110 const_eio (FALLOC_FL_ZERO_RANGE)
1111 const_eio (FALLOC_FL_INSERT_RANGE)
1112 const_eio (FALLOC_FL_UNSHARE_RANGE)
1113
1114 const_eio (RENAME_NOREPLACE)
1115 const_eio (RENAME_EXCHANGE)
1116 const_eio (RENAME_WHITEOUT)
1117
1118 const_eio (READDIR_DENTS)
1119 const_eio (READDIR_DIRS_FIRST)
1120 const_eio (READDIR_STAT_ORDER)
1121 const_eio (READDIR_FOUND_UNKNOWN)
1122
1123 const_eio (DT_UNKNOWN)
1124 const_eio (DT_FIFO)
1125 const_eio (DT_CHR)
1126 const_eio (DT_DIR)
1127 const_eio (DT_BLK)
1128 const_eio (DT_REG)
1129 const_eio (DT_LNK)
1130 const_eio (DT_SOCK)
1131 const_eio (DT_WHT)
1132 };
1133
1384 HV *stash = gv_stashpv ("IO::AIO", 1); 1134 aio_stash = gv_stashpv ("IO::AIO" , 1);
1135 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1136 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1137 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1385 1138
1386 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1139 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1387 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1140 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1388 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1389 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1390 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1391#ifdef _WIN32
1392 X_MUTEX_CHECK (wrklock);
1393 X_MUTEX_CHECK (reslock);
1394 X_MUTEX_CHECK (reqlock);
1395 X_MUTEX_CHECK (reqwait);
1396 X_MUTEX_CHECK (preadwritelock);
1397 X_MUTEX_CHECK (readdirlock);
1398#else
1399 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1400 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1401#endif
1402 1141
1403 if (!create_pipe (respipe)) 1142 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1404 croak ("cannot set result pipe to nonblocking mode");
1405 1143
1406 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 1144 reinit ();
1407} 1145}
1408 1146
1409void 1147void
1148reinit ()
1149 PROTOTYPE:
1150
1151void
1410max_poll_reqs (int nreqs) 1152max_poll_reqs (unsigned int nreqs)
1411 PROTOTYPE: $ 1153 PROTOTYPE: $
1412 CODE: 1154 CODE:
1413 max_poll_reqs = nreqs; 1155 eio_set_max_poll_reqs (nreqs);
1414 1156
1415void 1157void
1416max_poll_time (double nseconds) 1158max_poll_time (double nseconds)
1417 PROTOTYPE: $ 1159 PROTOTYPE: $
1418 CODE: 1160 CODE:
1419 max_poll_time = nseconds * AIO_TICKS; 1161 eio_set_max_poll_time (nseconds);
1420 1162
1421void 1163void
1422min_parallel (int nthreads) 1164min_parallel (unsigned int nthreads)
1423 PROTOTYPE: $
1424
1425void
1426max_parallel (int nthreads)
1427 PROTOTYPE: $
1428
1429void
1430max_idle (int nthreads)
1431 PROTOTYPE: $ 1165 PROTOTYPE: $
1432 CODE: 1166 CODE:
1433 set_max_idle (nthreads); 1167 eio_set_min_parallel (nthreads);
1434 1168
1435int 1169void
1436max_outstanding (int maxreqs) 1170max_parallel (unsigned int nthreads)
1437 PROTOTYPE: $ 1171 PROTOTYPE: $
1438 CODE: 1172 CODE:
1439 RETVAL = max_outstanding; 1173 eio_set_max_parallel (nthreads);
1174
1175void
1176max_idle (unsigned int nthreads)
1177 PROTOTYPE: $
1178 CODE:
1179 eio_set_max_idle (nthreads);
1180
1181void
1182idle_timeout (unsigned int seconds)
1183 PROTOTYPE: $
1184 CODE:
1185 eio_set_idle_timeout (seconds);
1186
1187void
1188max_outstanding (unsigned int maxreqs)
1189 PROTOTYPE: $
1190 CODE:
1440 max_outstanding = maxreqs; 1191 max_outstanding = maxreqs;
1441 OUTPUT:
1442 RETVAL
1443 1192
1444void 1193void
1445aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1194aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1446 PROTOTYPE: $$$;$
1447 PPCODE: 1195 PPCODE:
1448{ 1196{
1449 dREQ; 1197 dREQ;
1450 1198
1199 req->type = EIO_WD_OPEN;
1200 req_set_path1 (req, pathname);
1201
1202 REQ_SEND;
1203}
1204
1205void
1206aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1207 PPCODE:
1208{
1209 dREQ;
1210
1451 req->type = REQ_OPEN; 1211 req->type = EIO_OPEN;
1452 req->sv1 = newSVsv (pathname); 1212 req_set_path1 (req, pathname);
1453 req->ptr1 = SvPVbyte_nolen (req->sv1);
1454 req->int1 = flags; 1213 req->int1 = flags;
1455 req->mode = mode; 1214 req->int2 = mode;
1456 1215
1457 REQ_SEND; 1216 REQ_SEND;
1458} 1217}
1459 1218
1460void 1219void
1461aio_close (SV *fh, SV *callback=&PL_sv_undef) 1220aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1462 PROTOTYPE: $;$
1463 ALIAS: 1221 ALIAS:
1464 aio_close = REQ_CLOSE
1465 aio_fsync = REQ_FSYNC 1222 aio_fsync = EIO_FSYNC
1466 aio_fdatasync = REQ_FDATASYNC 1223 aio_fdatasync = EIO_FDATASYNC
1224 aio_syncfs = EIO_SYNCFS
1467 PPCODE: 1225 PPCODE:
1468{ 1226{
1227 int fd = s_fileno_croak (fh, 0);
1469 dREQ; 1228 dREQ;
1470 1229
1471 req->type = ix; 1230 req->type = ix;
1472 req->sv1 = newSVsv (fh); 1231 req->sv1 = newSVsv (fh);
1473 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1232 req->int1 = fd;
1474 1233
1475 REQ_SEND (req); 1234 REQ_SEND;
1476} 1235}
1477 1236
1478void 1237void
1238aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1239 PPCODE:
1240{
1241 int fd = s_fileno_croak (fh, 0);
1242 dREQ;
1243
1244 req->type = EIO_SYNC_FILE_RANGE;
1245 req->sv1 = newSVsv (fh);
1246 req->int1 = fd;
1247 req->offs = offset;
1248 req->size = nbytes;
1249 req->int2 = flags;
1250
1251 REQ_SEND;
1252}
1253
1254void
1255aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1256 PPCODE:
1257{
1258 int fd = s_fileno_croak (fh, 0);
1259 dREQ;
1260
1261 req->type = EIO_FALLOCATE;
1262 req->sv1 = newSVsv (fh);
1263 req->int1 = fd;
1264 req->int2 = mode;
1265 req->offs = offset;
1266 req->size = len;
1267
1268 REQ_SEND;
1269}
1270
1271void
1272aio_close (SV *fh, SV *callback = &PL_sv_undef)
1273 PPCODE:
1274{
1275 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1276 int fd = s_fileno_croak (fh, 0);
1277 dREQ;
1278
1279 if (expect_false (close_fd < 0))
1280 {
1281 int pipefd [2];
1282
1283 if (
1284#ifdef _WIN32
1285 _pipe (pipefd, 1, _O_BINARY) < 0
1286#else
1287 pipe (pipefd) < 0
1288 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1289#endif
1290 || close (pipefd [1]) < 0
1291 )
1292 abort (); /*D*/
1293
1294 close_fd = pipefd [0];
1295 }
1296
1297 req->type = EIO_DUP2;
1298 req->int1 = close_fd;
1299 req->sv2 = newSVsv (fh);
1300 req->int2 = fd;
1301
1302 REQ_SEND;
1303}
1304
1305void
1306aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1307 PPCODE:
1308{
1309 int fd = s_fileno_croak (fh, 0);
1310 dREQ;
1311
1312 req->type = EIO_SEEK;
1313 req->sv1 = newSVsv (fh);
1314 req->int1 = fd;
1315 req->offs = SvVAL64 (offset);
1316 req->int2 = whence;
1317
1318 REQ_SEND;
1319}
1320
1321void
1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1322aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1480 ALIAS: 1323 ALIAS:
1481 aio_read = REQ_READ 1324 aio_read = EIO_READ
1482 aio_write = REQ_WRITE 1325 aio_write = EIO_WRITE
1483 PROTOTYPE: $$$$$;$
1484 PPCODE: 1326 PPCODE:
1485{ 1327{
1486 STRLEN svlen; 1328 STRLEN svlen;
1329 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1487 char *svptr = SvPVbyte (data, svlen); 1330 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length); 1331 UV len = SvUV (length);
1489 1332
1490 SvUPGRADE (data, SVt_PV);
1491 SvPOK_on (data);
1492
1493 if (dataoffset < 0) 1333 if (dataoffset < 0)
1494 dataoffset += svlen; 1334 dataoffset += svlen;
1495 1335
1496 if (dataoffset < 0 || dataoffset > svlen) 1336 if (dataoffset < 0 || dataoffset > svlen)
1497 croak ("dataoffset outside of data scalar"); 1337 croak ("dataoffset outside of data scalar");
1498 1338
1499 if (ix == REQ_WRITE) 1339 if (ix == EIO_WRITE)
1500 { 1340 {
1501 /* write: check length and adjust. */ 1341 /* write: check length and adjust. */
1502 if (!SvOK (length) || len + dataoffset > svlen) 1342 if (!SvOK (length) || len + dataoffset > svlen)
1503 len = svlen - dataoffset; 1343 len = svlen - dataoffset;
1504 } 1344 }
1505 else 1345 else
1506 { 1346 {
1507 /* read: grow scalar as necessary */ 1347 /* read: check type and grow scalar as necessary */
1348 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1508 svptr = SvGROW (data, len + dataoffset + 1); 1349 svptr = sv_grow (data, len + dataoffset + 1);
1350 else if (SvCUR (data) < len + dataoffset)
1351 croak ("length + dataoffset outside of scalar, and cannot grow");
1509 } 1352 }
1510
1511 if (len < 0)
1512 croak ("length must not be negative");
1513 1353
1514 { 1354 {
1515 dREQ; 1355 dREQ;
1516 1356
1517 req->type = ix; 1357 req->type = ix;
1518 req->sv1 = newSVsv (fh); 1358 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1359 req->int1 = fd;
1520 : IoOFP (sv_2io (fh)));
1521 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1360 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1522 req->size = len; 1361 req->size = len;
1523 req->sv2 = SvREFCNT_inc (data); 1362 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr1 = (char *)svptr + dataoffset; 1363 req->ptr2 = (char *)svptr + dataoffset;
1525 req->stroffset = dataoffset; 1364 req->stroffset = dataoffset;
1526 1365
1527 if (!SvREADONLY (data)) 1366 if (!SvREADONLY (data))
1528 { 1367 {
1529 SvREADONLY_on (data); 1368 SvREADONLY_on (data);
… …
1533 REQ_SEND; 1372 REQ_SEND;
1534 } 1373 }
1535} 1374}
1536 1375
1537void 1376void
1538aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1377aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1539 PROTOTYPE: $$;$ 1378 ALIAS:
1379 aio_ioctl = EIO_IOCTL
1380 aio_fcntl = EIO_FCNTL
1540 PPCODE: 1381 PPCODE:
1541{ 1382{
1542 SV *data; 1383 int fd = s_fileno_croak (fh, 0);
1543 dREQ; 1384 char *svptr;
1544 1385
1545 data = newSV (NAME_MAX); 1386 if (SvPOK (arg) || !SvNIOK (arg))
1546 SvPOK_on (data);
1547
1548 req->type = REQ_READLINK;
1549 req->sv1 = newSVsv (path);
1550 req->ptr2 = SvPVbyte_nolen (req->sv1);
1551 req->sv2 = data;
1552 req->ptr1 = SvPVbyte_nolen (data);
1553
1554 REQ_SEND;
1555}
1556
1557void
1558aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1559 PROTOTYPE: $$$$;$
1560 PPCODE:
1561{
1562 dREQ;
1563
1564 req->type = REQ_SENDFILE;
1565 req->sv1 = newSVsv (out_fh);
1566 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1567 req->sv2 = newSVsv (in_fh);
1568 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1569 req->offs = SvVAL64 (in_offset);
1570 req->size = length;
1571
1572 REQ_SEND;
1573}
1574
1575void
1576aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1577 PROTOTYPE: $$$;$
1578 PPCODE:
1579{
1580 dREQ;
1581
1582 req->type = REQ_READAHEAD;
1583 req->sv1 = newSVsv (fh);
1584 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1585 req->offs = SvVAL64 (offset);
1586 req->size = length;
1587
1588 REQ_SEND;
1589}
1590
1591void
1592aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1593 ALIAS:
1594 aio_stat = REQ_STAT
1595 aio_lstat = REQ_LSTAT
1596 PPCODE:
1597{
1598 dREQ;
1599
1600 req->ptr2 = malloc (sizeof (Stat_t));
1601 if (!req->ptr2)
1602 { 1387 {
1603 req_destroy (req); 1388 STRLEN svlen;
1604 croak ("out of memory during aio_stat statdata allocation"); 1389 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1605 } 1390#ifdef IOCPARM_LEN
1391 STRLEN need = IOCPARM_LEN (request);
1392#else
1393 STRLEN need = 256;
1394#endif
1606 1395
1607 req->flags |= FLAG_PTR2_FREE; 1396 if (svlen < need)
1608 req->sv1 = newSVsv (fh_or_path); 1397 svptr = SvGROW (arg, need);
1609
1610 if (SvPOK (fh_or_path))
1611 {
1612 req->type = ix;
1613 req->ptr1 = SvPVbyte_nolen (req->sv1);
1614 } 1398 }
1615 else 1399 else
1400 svptr = (char *)SvIV (arg);
1401
1616 { 1402 {
1403 dREQ;
1404
1617 req->type = REQ_FSTAT; 1405 req->type = ix;
1618 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1406 req->sv1 = newSVsv (fh);
1407 req->int1 = fd;
1408 req->int2 = (long)request;
1409 req->sv2 = SvREFCNT_inc (arg);
1410 req->ptr2 = svptr;
1411
1412 REQ_SEND;
1619 } 1413 }
1414}
1415
1416void
1417aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1418 ALIAS:
1419 aio_readlink = EIO_READLINK
1420 aio_realpath = EIO_REALPATH
1421 PPCODE:
1422{
1423 dREQ;
1424
1425 req->type = ix;
1426 req_set_path1 (req, pathname);
1620 1427
1621 REQ_SEND; 1428 REQ_SEND;
1622} 1429}
1623 1430
1624void 1431void
1432aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1433 PPCODE:
1434{
1435 int ifd = s_fileno_croak (in_fh , 0);
1436 int ofd = s_fileno_croak (out_fh, 1);
1437 dREQ;
1438
1439 req->type = EIO_SENDFILE;
1440 req->sv1 = newSVsv (out_fh);
1441 req->int1 = ofd;
1442 req->sv2 = newSVsv (in_fh);
1443 req->int2 = ifd;
1444 req->offs = in_offset;
1445 req->size = length;
1446
1447 REQ_SEND;
1448}
1449
1450void
1451aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1452 PPCODE:
1453{
1454 int fd = s_fileno_croak (fh, 0);
1455 dREQ;
1456
1457 req->type = EIO_READAHEAD;
1458 req->sv1 = newSVsv (fh);
1459 req->int1 = fd;
1460 req->offs = offset;
1461 req->size = length;
1462
1463 REQ_SEND;
1464}
1465
1466void
1467aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1468 ALIAS:
1469 aio_stat = EIO_STAT
1470 aio_lstat = EIO_LSTAT
1471 aio_statvfs = EIO_STATVFS
1472 PPCODE:
1473{
1474 dREQ;
1475
1476 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1477
1478 REQ_SEND;
1479}
1480
1481UV
1482major (UV dev)
1483 ALIAS:
1484 minor = 1
1485 CODE:
1486 RETVAL = ix ? minor (dev) : major (dev);
1487 OUTPUT:
1488 RETVAL
1489
1490UV
1491makedev (UV maj, UV min)
1492 CODE:
1493 RETVAL = makedev (maj, min);
1494 OUTPUT:
1495 RETVAL
1496
1497void
1625aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1498aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1626 PPCODE: 1499 PPCODE:
1627{ 1500{
1628 dREQ; 1501 dREQ;
1629 1502
1630 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1503 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1631 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1504 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1632 req->sv1 = newSVsv (fh_or_path); 1505 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1633
1634 if (SvPOK (fh_or_path))
1635 {
1636 req->type = REQ_UTIME;
1637 req->ptr1 = SvPVbyte_nolen (req->sv1);
1638 }
1639 else
1640 {
1641 req->type = REQ_FUTIME;
1642 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1643 }
1644 1506
1645 REQ_SEND; 1507 REQ_SEND;
1646} 1508}
1647 1509
1648void 1510void
1649aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1511aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1650 PPCODE: 1512 PPCODE:
1651{ 1513{
1652 dREQ; 1514 dREQ;
1653 1515
1654 req->sv1 = newSVsv (fh_or_path);
1655 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1516 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1656 1517 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1657 if (SvPOK (fh_or_path))
1658 {
1659 req->type = REQ_TRUNCATE;
1660 req->ptr1 = SvPVbyte_nolen (req->sv1);
1661 }
1662 else
1663 {
1664 req->type = REQ_FTRUNCATE;
1665 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1666 }
1667 1518
1668 REQ_SEND; 1519 REQ_SEND;
1669} 1520}
1670 1521
1671void 1522void
1672aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1523aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1673 PPCODE: 1524 PPCODE:
1674{ 1525{
1675 dREQ; 1526 dREQ;
1676 1527
1677 req->mode = mode; 1528 req->int2 = mode;
1678 req->sv1 = newSVsv (fh_or_path); 1529 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1679
1680 if (SvPOK (fh_or_path))
1681 {
1682 req->type = REQ_CHMOD;
1683 req->ptr1 = SvPVbyte_nolen (req->sv1);
1684 }
1685 else
1686 {
1687 req->type = REQ_FCHMOD;
1688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1689 }
1690 1530
1691 REQ_SEND; 1531 REQ_SEND;
1692} 1532}
1693 1533
1694void 1534void
1695aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1535aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1696 PPCODE: 1536 PPCODE:
1697{ 1537{
1698 dREQ; 1538 dREQ;
1699 1539
1700 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1540 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1701 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1541 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1702 req->sv1 = newSVsv (fh_or_path); 1542 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1703
1704 if (SvPOK (fh_or_path))
1705 {
1706 req->type = REQ_CHOWN;
1707 req->ptr1 = SvPVbyte_nolen (req->sv1);
1708 }
1709 else
1710 {
1711 req->type = REQ_FCHOWN;
1712 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1713 }
1714 1543
1715 REQ_SEND; 1544 REQ_SEND;
1716} 1545}
1717 1546
1718void 1547void
1548aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1549 PPCODE:
1550{
1551 dREQ;
1552
1553 req->type = EIO_READDIR;
1554 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1555
1556 if (flags & EIO_READDIR_DENTS)
1557 req->int1 |= EIO_READDIR_CUSTOM2;
1558
1559 req_set_path1 (req, pathname);
1560
1561 REQ_SEND;
1562}
1563
1564void
1565aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1566 PPCODE:
1567{
1568 dREQ;
1569
1570 req->type = EIO_MKDIR;
1571 req->int2 = mode;
1572 req_set_path1 (req, pathname);
1573
1574 REQ_SEND;
1575}
1576
1577void
1719aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1578aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1720 ALIAS: 1579 ALIAS:
1721 aio_unlink = REQ_UNLINK 1580 aio_unlink = EIO_UNLINK
1722 aio_rmdir = REQ_RMDIR 1581 aio_rmdir = EIO_RMDIR
1723 aio_readdir = REQ_READDIR 1582 aio_readdir = EIO_READDIR
1724 PPCODE: 1583 PPCODE:
1725{ 1584{
1726 dREQ; 1585 dREQ;
1727 1586
1728 req->type = ix; 1587 req->type = ix;
1729 req->sv1 = newSVsv (pathname); 1588 req_set_path1 (req, pathname);
1730 req->ptr1 = SvPVbyte_nolen (req->sv1);
1731 1589
1732 REQ_SEND; 1590 REQ_SEND;
1733} 1591}
1734 1592
1735void 1593void
1736aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1594aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1595 ALIAS:
1596 aio_link = EIO_LINK
1597 aio_symlink = EIO_SYMLINK
1598 aio_rename = EIO_RENAME
1737 PPCODE: 1599 PPCODE:
1738{ 1600{
1739 dREQ; 1601 eio_wd wd2 = 0;
1740
1741 req->type = REQ_MKDIR;
1742 req->sv1 = newSVsv (pathname);
1743 req->ptr1 = SvPVbyte_nolen (req->sv1);
1744 req->mode = mode;
1745
1746 REQ_SEND;
1747}
1748
1749void
1750aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1751 ALIAS:
1752 aio_link = REQ_LINK
1753 aio_symlink = REQ_SYMLINK
1754 aio_rename = REQ_RENAME
1755 PPCODE:
1756{
1757 dREQ; 1602 dREQ;
1758 1603
1759 req->type = ix; 1604 req->type = ix;
1760 req->sv2 = newSVsv (oldpath); 1605 req_set_path1 (req, oldpath);
1761 req->ptr2 = SvPVbyte_nolen (req->sv2); 1606 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1762 req->sv1 = newSVsv (newpath); 1607 req->int3 = (long)wd2;
1763 req->ptr1 = SvPVbyte_nolen (req->sv1);
1764 1608
1765 REQ_SEND; 1609 REQ_SEND;
1766} 1610}
1767 1611
1768void 1612void
1769aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1613aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1770 PPCODE: 1614 PPCODE:
1771{ 1615{
1616 eio_wd wd2 = 0;
1772 dREQ; 1617 dREQ;
1773 1618
1774 req->type = REQ_MKNOD; 1619 req->type = EIO_RENAME;
1775 req->sv1 = newSVsv (pathname); 1620 req_set_path1 (req, oldpath);
1776 req->ptr1 = SvPVbyte_nolen (req->sv1); 1621 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1777 req->mode = (mode_t)mode; 1622 req->int2 = flags;
1778 req->offs = dev; 1623 req->int3 = (long)wd2;
1779 1624
1780 REQ_SEND; 1625 REQ_SEND;
1781} 1626}
1782 1627
1783void 1628void
1784aio_busy (double delay, SV *callback=&PL_sv_undef) 1629aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1785 PPCODE: 1630 PPCODE:
1786{ 1631{
1787 dREQ; 1632 dREQ;
1633
1634 req->type = EIO_MKNOD;
1635 req->int2 = (mode_t)mode;
1636 req->offs = dev;
1637 req_set_path1 (req, pathname);
1638
1639 REQ_SEND;
1640}
1788 1641
1642void
1643aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1644 ALIAS:
1645 aio_mtouch = EIO_MTOUCH
1646 aio_msync = EIO_MSYNC
1647 PPCODE:
1648{
1649 STRLEN svlen;
1650 char *svptr = SvPVbyte (data, svlen);
1651 UV len = SvUV (length);
1652
1653 if (flags < 0)
1654 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1655
1656 if (offset < 0)
1657 offset += svlen;
1658
1659 if (offset < 0 || offset > svlen)
1660 croak ("offset outside of scalar");
1661
1662 if (!SvOK (length) || len + offset > svlen)
1663 len = svlen - offset;
1664
1665 {
1666 dREQ;
1667
1668 req->type = ix;
1669 req->sv2 = SvREFCNT_inc (data);
1670 req->ptr2 = (char *)svptr + offset;
1671 req->size = len;
1672 req->int1 = flags;
1673
1674 REQ_SEND;
1675 }
1676}
1677
1678void
1679aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1680 PPCODE:
1681{
1682 STRLEN svlen;
1683 char *svptr = SvPVbyte (data, svlen);
1684 UV len = SvUV (length);
1685
1686 if (offset < 0)
1687 offset += svlen;
1688
1689 if (offset < 0 || offset > svlen)
1690 croak ("offset outside of scalar");
1691
1692 if (!SvOK (length) || len + offset > svlen)
1693 len = svlen - offset;
1694
1695 {
1696 dREQ;
1697
1698 req->type = EIO_MLOCK;
1699 req->sv2 = SvREFCNT_inc (data);
1700 req->ptr2 = (char *)svptr + offset;
1701 req->size = len;
1702
1703 REQ_SEND;
1704 }
1705}
1706
1707void
1708aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1709 PPCODE:
1710{
1711 dREQ;
1712
1713 req->type = EIO_MLOCKALL;
1714 req->int1 = flags;
1715
1716 REQ_SEND;
1717}
1718
1719void
1720aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1721 PPCODE:
1722{
1723 int fd = s_fileno_croak (fh, 0);
1724 dREQ;
1725
1726 req->type = EIO_CUSTOM;
1727 req->sv1 = newSVsv (fh);
1728 req->int1 = fd;
1729
1730 req->feed = fiemap;
1731#if HAVE_FIEMAP
1732 /* keep our fingers crossed that the next two types are 64 bit */
1733 req->offs = start;
1734 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1735 req->int2 = flags;
1736 req->int3 = SvOK (count) ? SvIV (count) : -1;
1737#endif
1738
1739 REQ_SEND;
1740}
1741
1742void
1743aio_busy (double delay, SV *callback = &PL_sv_undef)
1744 PPCODE:
1745{
1746 dREQ;
1747
1789 req->type = REQ_BUSY; 1748 req->type = EIO_BUSY;
1790 req->nv1 = delay < 0. ? 0. : delay; 1749 req->nv1 = delay < 0. ? 0. : delay;
1791 1750
1792 REQ_SEND; 1751 REQ_SEND;
1793} 1752}
1794 1753
1795void 1754void
1796aio_group (SV *callback=&PL_sv_undef) 1755aio_group (SV *callback = &PL_sv_undef)
1797 PROTOTYPE: ;$
1798 PPCODE: 1756 PPCODE:
1799{ 1757{
1800 dREQ; 1758 dREQ;
1801 1759
1802 req->type = REQ_GROUP; 1760 req->type = EIO_GROUP;
1803 1761
1762 PUTBACK;
1804 req_send (req); 1763 req_submit (req);
1764 SPAGAIN;
1765
1805 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1766 XPUSHs (req_sv (req, aio_grp_stash));
1806} 1767}
1807 1768
1808void 1769void
1809aio_nop (SV *callback=&PL_sv_undef) 1770aio_nop (SV *callback = &PL_sv_undef)
1771 ALIAS:
1772 aio_nop = EIO_NOP
1773 aio_sync = EIO_SYNC
1810 PPCODE: 1774 PPCODE:
1811{ 1775{
1812 dREQ; 1776 dREQ;
1813 1777
1814 req->type = REQ_NOP; 1778 req->type = ix;
1815 1779
1816 REQ_SEND; 1780 REQ_SEND;
1817} 1781}
1818 1782
1819int 1783int
1820aioreq_pri (int pri = 0) 1784aioreq_pri (int pri = NO_INIT)
1821 PROTOTYPE: ;$
1822 CODE: 1785 CODE:
1823 RETVAL = next_pri - PRI_BIAS; 1786 RETVAL = next_pri;
1824 if (items > 0) 1787 if (items > 0)
1825 { 1788 {
1826 if (pri < PRI_MIN) pri = PRI_MIN; 1789 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1827 if (pri > PRI_MAX) pri = PRI_MAX; 1790 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1828 next_pri = pri + PRI_BIAS; 1791 next_pri = pri;
1829 } 1792 }
1830 OUTPUT: 1793 OUTPUT:
1831 RETVAL 1794 RETVAL
1832 1795
1833void 1796void
1834aioreq_nice (int nice = 0) 1797aioreq_nice (int nice = 0)
1835 CODE: 1798 CODE:
1836 nice = next_pri - nice; 1799 nice = next_pri - nice;
1837 if (nice < PRI_MIN) nice = PRI_MIN; 1800 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1838 if (nice > PRI_MAX) nice = PRI_MAX; 1801 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1839 next_pri = nice + PRI_BIAS; 1802 next_pri = nice;
1840 1803
1841void 1804void
1842flush () 1805flush ()
1843 PROTOTYPE:
1844 CODE: 1806 CODE:
1845 while (nreqs) 1807 while (eio_nreqs ())
1846 { 1808 {
1847 poll_wait (); 1809 poll_wait ();
1848 poll_cb (); 1810 poll_cb ();
1849 } 1811 }
1850 1812
1851int 1813int
1852poll() 1814poll ()
1853 PROTOTYPE:
1854 CODE: 1815 CODE:
1855 poll_wait (); 1816 poll_wait ();
1856 RETVAL = poll_cb (); 1817 RETVAL = poll_cb ();
1857 OUTPUT: 1818 OUTPUT:
1858 RETVAL 1819 RETVAL
1859 1820
1860int 1821int
1861poll_fileno() 1822poll_fileno ()
1862 PROTOTYPE:
1863 CODE: 1823 CODE:
1864 RETVAL = respipe [0]; 1824 RETVAL = s_epipe_fd (&respipe);
1865 OUTPUT: 1825 OUTPUT:
1866 RETVAL 1826 RETVAL
1867 1827
1868int 1828int
1869poll_cb(...) 1829poll_cb (...)
1870 PROTOTYPE: 1830 PROTOTYPE:
1871 CODE: 1831 CODE:
1872 RETVAL = poll_cb (); 1832 RETVAL = poll_cb ();
1873 OUTPUT: 1833 OUTPUT:
1874 RETVAL 1834 RETVAL
1875 1835
1876void 1836void
1877poll_wait() 1837poll_wait ()
1878 PROTOTYPE:
1879 CODE: 1838 CODE:
1880 poll_wait (); 1839 poll_wait ();
1881 1840
1882void
1883setsig (int signum = SIGIO)
1884 PROTOTYPE: ;$
1885 CODE:
1886{
1887 if (block_sig_level)
1888 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1889
1890 X_LOCK (reslock);
1891 main_tid = pthread_self ();
1892 main_sig = signum;
1893 X_UNLOCK (reslock);
1894
1895 if (main_sig && npending)
1896 pthread_kill (main_tid, main_sig);
1897}
1898
1899void
1900aio_block (SV *cb)
1901 PROTOTYPE: &
1902 PPCODE:
1903{
1904 int count;
1905
1906 block_sig ();
1907 PUSHMARK (SP);
1908 PUTBACK;
1909 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1910 SPAGAIN;
1911 unblock_sig ();
1912
1913 if (SvTRUE (ERRSV))
1914 croak (0);
1915
1916 XSRETURN (count);
1917}
1918
1919int 1841int
1920nreqs() 1842nreqs ()
1921 PROTOTYPE:
1922 CODE: 1843 CODE:
1923 RETVAL = nreqs; 1844 RETVAL = eio_nreqs ();
1924 OUTPUT: 1845 OUTPUT:
1925 RETVAL 1846 RETVAL
1926 1847
1927int 1848int
1928nready() 1849nready ()
1929 PROTOTYPE:
1930 CODE: 1850 CODE:
1931 RETVAL = get_nready (); 1851 RETVAL = eio_nready ();
1932 OUTPUT: 1852 OUTPUT:
1933 RETVAL 1853 RETVAL
1934 1854
1935int 1855int
1936npending() 1856npending ()
1937 PROTOTYPE:
1938 CODE: 1857 CODE:
1939 RETVAL = get_npending (); 1858 RETVAL = eio_npending ();
1940 OUTPUT: 1859 OUTPUT:
1941 RETVAL 1860 RETVAL
1942 1861
1943int 1862int
1944nthreads() 1863nthreads ()
1945 PROTOTYPE:
1946 CODE: 1864 CODE:
1947 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1865 RETVAL = eio_nthreads ();
1948 RETVAL = started;
1949 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1950 OUTPUT: 1866 OUTPUT:
1951 RETVAL 1867 RETVAL
1952 1868
1869int
1870fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1871 CODE:
1872 RETVAL = posix_fadvise (fh, offset, length, advice);
1873 OUTPUT:
1874 RETVAL
1875
1876IV
1877sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1878 CODE:
1879 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1880 OUTPUT:
1881 RETVAL
1882
1883void
1884mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1885 PPCODE:
1886 sv_unmagic (scalar, MMAP_MAGIC);
1887{
1888 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1889 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1890 if (addr == (void *)-1)
1891 XSRETURN_NO;
1892
1893 sv_force_normal (scalar);
1894
1895 /* we store the length in mg_obj, as namlen is I32 :/ */
1896 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1897 ->mg_obj = (SV *)length;
1898
1899 SvUPGRADE (scalar, SVt_PV); /* nop... */
1900
1901 if (!(prot & PROT_WRITE))
1902 SvREADONLY_on (scalar);
1903
1904 if (SvLEN (scalar))
1905 Safefree (SvPVX (scalar));
1906
1907 SvPVX (scalar) = (char *)addr;
1908 SvCUR_set (scalar, length);
1909 SvLEN_set (scalar, 0);
1910 SvPOK_only (scalar);
1911
1912 XSRETURN_YES;
1913}
1914
1915void
1916munmap (SV *scalar)
1917 CODE:
1918 sv_unmagic (scalar, MMAP_MAGIC);
1919
1920int
1921madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1922 ALIAS:
1923 mprotect = 1
1924 CODE:
1925{
1926 STRLEN svlen;
1927 void *addr = SvPVbyte (scalar, svlen);
1928 STRLEN len = SvUV (length);
1929
1930 if (offset < 0)
1931 offset += svlen;
1932
1933 if (offset < 0 || offset > svlen)
1934 croak ("offset outside of scalar");
1935
1936 if (!SvOK (length) || len + offset > svlen)
1937 len = svlen - offset;
1938
1939 addr = (void *)(((intptr_t)addr) + offset);
1940 eio_page_align (&addr, &len);
1941
1942 switch (ix)
1943 {
1944 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1945 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1946 }
1947}
1948 OUTPUT:
1949 RETVAL
1950
1951int
1952munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1953 CODE:
1954{
1955 STRLEN svlen;
1956 void *addr = SvPVbyte (scalar, svlen);
1957 size_t len = SvUV (length);
1958
1959 if (offset < 0)
1960 offset += svlen;
1961
1962 if (offset < 0 || offset > svlen)
1963 croak ("offset outside of scalar");
1964
1965 if (!SvOK (length) || len + offset > svlen)
1966 len = svlen - offset;
1967
1968 addr = (void *)(((intptr_t)addr) + offset);
1969 eio_page_align (&addr, &len);
1970#if _POSIX_MEMLOCK_RANGE
1971 RETVAL = munlock (addr, len);
1972#else
1973 RETVAL = EIO_ENOSYS ();
1974#endif
1975}
1976 OUTPUT:
1977 RETVAL
1978
1979int
1980munlockall ()
1981 CODE:
1982#if _POSIX_MEMLOCK
1983 munlockall ();
1984#else
1985 RETVAL = EIO_ENOSYS ();
1986#endif
1987 OUTPUT:
1988 RETVAL
1989
1990int
1991splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1992 CODE:
1993{
1994#if HAVE_LINUX_SPLICE
1995 loff_t off_in_, off_out_;
1996 RETVAL = splice (
1997 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1998 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1999 length, flags
2000 );
2001#else
2002 RETVAL = EIO_ENOSYS ();
2003#endif
2004}
2005 OUTPUT:
2006 RETVAL
2007
2008int
2009tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2010 CODE:
2011#if HAVE_LINUX_SPLICE
2012 RETVAL = tee (rfh, wfh, length, flags);
2013#else
2014 RETVAL = EIO_ENOSYS ();
2015#endif
2016 OUTPUT:
2017 RETVAL
2018
2019int
2020pipesize (aio_rfd rfh, int new_size = -1)
2021 PROTOTYPE: $;$
2022 CODE:
2023#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2024 if (new_size >= 0)
2025 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2026 else
2027 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2028#else
2029 errno = ENOSYS;
2030 RETVAL = -1;
2031#endif
2032 OUTPUT:
2033 RETVAL
2034
2035void
2036pipe2 (int flags = 0)
2037 PROTOTYPE: ;$
2038 PPCODE:
2039{
2040 int fd[2];
2041 int res;
2042
2043 if (flags)
2044#if HAVE_PIPE2
2045 res = pipe2 (fd, flags);
2046#else
2047 res = (errno = ENOSYS, -1);
2048#endif
2049 else
2050 res = pipe (fd);
2051
2052 if (!res)
2053 {
2054 EXTEND (SP, 2);
2055 PUSHs (newmortalFH (fd[0], O_RDONLY));
2056 PUSHs (newmortalFH (fd[1], O_WRONLY));
2057 }
2058}
2059
2060UV
2061get_fdlimit ()
2062 CODE:
2063#if HAVE_RLIMITS
2064 struct rlimit rl;
2065 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2066 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2067#endif
2068 XSRETURN_UNDEF;
2069 OUTPUT:
2070 RETVAL
2071
2072void
2073min_fdlimit (UV limit = 0x7fffffffU)
2074 CODE:
2075{
2076#if HAVE_RLIMITS
2077 struct rlimit rl;
2078 rlim_t orig_rlim_max;
2079 UV bit;
2080
2081 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2082 goto fail;
2083
2084 if (rl.rlim_cur == RLIM_INFINITY)
2085 XSRETURN_YES;
2086
2087 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2088
2089 if (rl.rlim_cur < limit)
2090 {
2091 rl.rlim_cur = limit;
2092
2093 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2094 rl.rlim_max = rl.rlim_cur;
2095 }
2096
2097 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2098 XSRETURN_YES;
2099
2100 if (errno == EPERM)
2101 {
2102 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2103 /* our limit overflows a system-wide limit */
2104 /* try an adaptive algorithm, but do not lower the hardlimit */
2105 rl.rlim_max = 0;
2106 for (bit = 0x40000000U; bit; bit >>= 1)
2107 {
2108 rl.rlim_max |= bit;
2109 rl.rlim_cur = rl.rlim_max;
2110
2111 /* nevr decrease the hard limit */
2112 if (rl.rlim_max < orig_rlim_max)
2113 break;
2114
2115 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2116 rl.rlim_max &= ~bit; /* too high, remove bit again */
2117 }
2118
2119 /* now, raise the soft limit to the max permitted */
2120 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2121 {
2122 rl.rlim_cur = rl.rlim_max;
2123 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2124 errno = EPERM;
2125 }
2126 }
2127#endif
2128 fail:
2129 XSRETURN_UNDEF;
2130}
2131
2132void _on_next_submit (SV *cb)
2133 CODE:
2134 SvREFCNT_dec (on_next_submit);
2135 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2136
1953PROTOTYPES: DISABLE 2137PROTOTYPES: DISABLE
2138
2139MODULE = IO::AIO PACKAGE = IO::AIO::WD
2140
2141BOOT:
2142{
2143 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2144 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2145}
2146
2147void
2148DESTROY (SV *self)
2149 CODE:
2150{
2151 aio_wd wd = SvAIO_WD (self);
2152#if HAVE_AT
2153 {
2154 SV *callback = &PL_sv_undef;
2155 dREQ; /* clobbers next_pri :/ */
2156 next_pri = req->pri; /* restore next_pri */
2157 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2158 req->type = EIO_WD_CLOSE;
2159 req->wd = wd;
2160 REQ_SEND;
2161 }
2162#else
2163 eio_wd_close_sync (wd);
2164#endif
2165}
1954 2166
1955MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2167MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1956 2168
1957void 2169void
1958cancel (aio_req_ornot req) 2170cancel (aio_req_ornot req)
1959 CODE: 2171 CODE:
1960 req_cancel (req); 2172 eio_cancel (req);
1961 2173
1962void 2174void
1963cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2175cb (aio_req_ornot req, SV *callback = NO_INIT)
1964 CODE: 2176 PPCODE:
2177{
2178 if (GIMME_V != G_VOID)
2179 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2180
2181 if (items > 1)
2182 {
2183 SV *cb_cv = get_cb (callback);
2184
1965 SvREFCNT_dec (req->callback); 2185 SvREFCNT_dec (req->callback);
1966 req->callback = newSVsv (callback); 2186 req->callback = SvREFCNT_inc (cb_cv);
2187 }
2188}
1967 2189
1968MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2190MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1969 2191
1970void 2192void
1971add (aio_req grp, ...) 2193add (aio_req grp, ...)
1972 PPCODE: 2194 PPCODE:
1973{ 2195{
1974 int i; 2196 int i;
1975 aio_req req;
1976
1977 if (main_sig && !block_sig_level)
1978 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1979 2197
1980 if (grp->int1 == 2) 2198 if (grp->int1 == 2)
1981 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2199 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1982 2200
1983 for (i = 1; i < items; ++i ) 2201 for (i = 1; i < items; ++i )
1984 { 2202 {
2203 aio_req req;
2204
1985 if (GIMME_V != G_VOID) 2205 if (GIMME_V != G_VOID)
1986 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2206 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1987 2207
1988 req = SvAIO_REQ (ST (i)); 2208 req = SvAIO_REQ (ST (i));
1989 2209
1990 if (req) 2210 if (req)
1991 { 2211 eio_grp_add (grp, req);
1992 ++grp->size;
1993 req->grp = grp;
1994
1995 req->grp_prev = 0;
1996 req->grp_next = grp->grp_first;
1997
1998 if (grp->grp_first)
1999 grp->grp_first->grp_prev = req;
2000
2001 grp->grp_first = req;
2002 }
2003 } 2212 }
2004} 2213}
2005 2214
2006void 2215void
2007cancel_subs (aio_req_ornot req) 2216cancel_subs (aio_req_ornot req)
… …
2016 AV *av; 2225 AV *av;
2017 2226
2018 grp->errorno = errno; 2227 grp->errorno = errno;
2019 2228
2020 av = newAV (); 2229 av = newAV ();
2230 av_extend (av, items - 1);
2021 2231
2022 for (i = 1; i < items; ++i ) 2232 for (i = 1; i < items; ++i )
2023 av_push (av, newSVsv (ST (i))); 2233 av_push (av, newSVsv (ST (i)));
2024 2234
2025 SvREFCNT_dec (grp->sv1); 2235 SvREFCNT_dec (grp->sv1);
… …
2032 grp->errorno = errorno; 2242 grp->errorno = errorno;
2033 2243
2034void 2244void
2035limit (aio_req grp, int limit) 2245limit (aio_req grp, int limit)
2036 CODE: 2246 CODE:
2037 grp->int2 = limit; 2247 eio_grp_limit (grp, limit);
2038 aio_grp_feed (grp);
2039 2248
2040void 2249void
2041feed (aio_req grp, SV *callback=&PL_sv_undef) 2250feed (aio_req grp, SV *callback = &PL_sv_undef)
2042 CODE: 2251 CODE:
2043{ 2252{
2044 SvREFCNT_dec (grp->sv2); 2253 SvREFCNT_dec (grp->sv2);
2045 grp->sv2 = newSVsv (callback); 2254 grp->sv2 = newSVsv (callback);
2255 grp->feed = aio_grp_feed;
2046 2256
2047 if (grp->int2 <= 0) 2257 if (grp->int2 <= 0)
2048 grp->int2 = 2; 2258 grp->int2 = 2;
2049 2259
2050 aio_grp_feed (grp); 2260 eio_grp_limit (grp, grp->int2);
2051} 2261}
2052 2262

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