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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.112 by root, Tue Apr 1 19:40:47 2008 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
29# undef send 56 #undef send
30# undef recv 57 #undef recv
31# undef stat 58 #undef stat
59 #undef lstat
32# undef fstat 60 #undef fstat
33# define lstat stat
34# undef truncate 61 #undef truncate
35# undef ftruncate 62 #undef ftruncate
36# undef open 63 #undef open
64 #undef link
37# undef close 65 #undef close
38# undef unlink 66 #undef unlink
67 #undef mkdir
39# undef rmdir 68 #undef rmdir
40# undef rename 69 #undef rename
41# 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
42 80
43# define chown(a,b,c) (errno = ENOSYS, -1) 81 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 82 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 83
57#else 84#else
58 85
59# include "autoconf/config.h"
60# include <sys/time.h> 86 #include <sys/time.h>
61# include <sys/select.h> 87 #include <sys/select.h>
62# include <unistd.h> 88 #include <unistd.h>
63# include <utime.h> 89 #include <utime.h>
64# include <signal.h> 90 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 91
67#endif 92 #define EIO_STRUCT_STAT Stat_t
68 93
69#if HAVE_SENDFILE 94#endif
70# 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
71# include <sys/sendfile.h> 112 #include <sys/time.h>
72# elif __freebsd
73# include <sys/socket.h> 113 #include <sys/resource.h>
74# include <sys/uio.h> 114#endif
75# elif __hpux 115
76# include <sys/socket.h> 116typedef SV SV8; /* byte-sv, used for argument-checking */
77# elif __solaris /* not yet */ 117typedef int aio_rfd; /* read file desriptor */
78# 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
79# else 151# else
80# error sendfile support requested but not available 152# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 153# endif
82#endif 154#endif
83 155
84/* number of seconds after which idle threads exit */ 156/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 157/* also provides const_iv_ and const_niv_ macros for them */
158#include "def0.h"
86 159
87/* used for struct dirent, AIX doesn't provide it */ 160#ifndef makedev
88#ifndef NAME_MAX 161# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 162#endif
91 163#ifndef major
92/* buffer size for various temporary buffers */ 164# define major(dev) ((dev) >> 8)
93#define AIO_BUFSIZE 65536
94
95/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8
97# define SvVAL64 SvIV
98#else
99# define SvVAL64 SvNV
100#endif 165#endif
166#ifndef minor
167# define minor(dev) ((dev) & 0xff)
168#endif
101 169
102static HV *stash; 170#if PAGESIZE <= 0
171# define PAGESIZE sysconf (_SC_PAGESIZE)
172#endif
103 173
104#define dBUF \ 174/*****************************************************************************/
105 char *aio_buf; \
106 X_LOCK (wrklock); \
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
108 X_UNLOCK (wrklock); \
109 if (!aio_buf) \
110 return -1;
111 175
112typedef SV SV8; /* byte-sv, used for argument-checking */ 176static void
113 177fiemap (eio_req *req)
114enum {
115 REQ_QUIT,
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130};
131
132#define AIO_REQ_KLASS "IO::AIO::REQ"
133#define AIO_GRP_KLASS "IO::AIO::GRP"
134
135typedef struct aio_cb
136{ 178{
137 struct aio_cb *volatile next; 179 req->result = -1;
138 180
139 SV *callback; 181#if HAVE_FIEMAP
140 SV *sv1, *sv2; 182 /* assume some c99 */
141 void *ptr1, *ptr2; 183 struct fiemap *fiemap = 0;
142 off_t offs; 184 size_t end_offset;
143 size_t size; 185 int count = req->int3;
144 ssize_t result;
145 double nv1, nv2;
146 186
147 STRLEN stroffset; 187 req->flags |= EIO_FLAG_PTR1_FREE;
148 int type;
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 188
153 unsigned char flags; 189 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
154 unsigned char pri; 190 /* increase in 3.5kb steps */
191 if (count < 0)
192 count = 8;
155 193
156 SV *self; /* the perl counterpart of this request, if any */ 194 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 195 errno = ENOMEM;
158} aio_cb; 196 if (!fiemap)
159
160enum {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164};
165
166typedef aio_cb *aio_req;
167typedef aio_cb *aio_req_ornot;
168
169enum {
170 PRI_MIN = -4,
171 PRI_MAX = 4,
172
173 DEFAULT_PRI = 0,
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189
190static thread_t main_tid;
191static int main_sig;
192static int block_sig_level;
193
194void block_sig (void)
195{
196 sigset_t ss;
197
198 if (block_sig_level++)
199 return; 197 return;
200 198
201 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)
202 return; 207 return;
203 208
204 sigemptyset (&ss); 209 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 210 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 211 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 212 goto done;
208 213
209void unblock_sig (void) 214 /* else we have to loop -
210{ 215 * it would be tempting (actually I tried that first) to just query the
211 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 */
212 220
213 if (--block_sig_level) 221 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 222
216 if (!main_sig) 223 for (;;)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 { 224 {
249 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) */
250 wrk->dirp = 0; 226 char scratch[3072];
251 } 227 struct fiemap *incmap = (struct fiemap *)scratch;
252 228
253 if (wrk->dbuf) 229 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 230 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 231 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 232 incmap->fm_flags = fiemap->fm_flags;
257 } 233 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 234
260static void worker_free (worker *wrk) 235 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready (void)
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending (void)
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads (void)
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0; 236 return;
355 237
356 --q->size; 238 if (!incmap->fm_mapped_extents)
239 goto done;
357 240
358 for (pri = NUM_PRI; pri--; ) 241 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 242 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 243 errno = ENOMEM;
361
362 if (req) 244 if (!fiemap)
245 return;
246
247 req->ptr1 = fiemap;
248
249 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 250 {
364 if (!(q->qs[pri] = req->next)) 251 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 252
367 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
368 } 261 }
369 } 262 }
370 263
371 abort (); 264done:
372} 265 req->result = 0;
373 266
374static int poll_cb (void); 267#else
375static 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
376static void req_destroy (aio_req req); 288static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 289static void req_cancel (aio_req req);
378 290
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
379/* must be called at most once */ 305/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 306static SV *
307req_sv (aio_req req, HV *stash)
381{ 308{
382 if (!req->self) 309 if (!req->self)
383 { 310 {
384 req->self = (SV *)newHV (); 311 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 312 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 313 }
387 314
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 315 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 316}
390 317
391static 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)
392{ 326{
393 MAGIC *mg; 327 MAGIC *mg;
394 328
395 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")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 334 croak ("object of class IO::AIO::REQ expected");
397 335
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 336 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 337
400 return mg ? (aio_req)mg->mg_ptr : 0; 338 return mg ? (aio_req)mg->mg_ptr : 0;
401} 339}
402 340
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
403static void aio_grp_feed (aio_req grp) 378aio_grp_feed (aio_req grp)
404{ 379{
405 block_sig (); 380 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 381 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 382 dSP;
414 383
415 ENTER; 384 ENTER;
416 SAVETMPS; 385 SAVETMPS;
417 PUSHMARK (SP); 386 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 387 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 388 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 389 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 390 SPAGAIN;
422 FREETMPS; 391 FREETMPS;
423 LEAVE; 392 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 393 }
434
435 unblock_sig ();
436} 394}
437 395
438static void aio_grp_dec (aio_req grp) 396static void
397req_submit (eio_req *req)
439{ 398{
440 --grp->size; 399 eio_submit (req);
441 400
442 /* call feeder, if applicable */ 401 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 402 {
448 block_sig (); 403 dSP;
404 SV *cb = sv_2mortal (on_next_submit);
449 405
450 if (!req_invoke (grp)) 406 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 407
457 req_destroy (grp); 408 PUSHMARK (SP);
458 unblock_sig (); 409 PUTBACK;
410 call_sv (cb, G_DISCARD | G_EVAL);
459 } 411 }
460} 412}
461 413
414static int
462static int req_invoke (aio_req req) 415req_invoke (eio_req *req)
463{ 416{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 417 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 418 SvREADONLY_off (req->sv2);
468 419
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 420 if (!EIO_CANCELLED (req) && req->callback)
470 { 421 {
422 dSP;
423 static SV *sv_result_cache; /* caches the result integer SV */
424 SV *sv_result;
425
471 ENTER; 426 ENTER;
472 SAVETMPS; 427 SAVETMPS;
473 PUSHMARK (SP); 428 PUSHMARK (SP);
474 EXTEND (SP, 1); 429 EXTEND (SP, 1);
475 430
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
476 switch (req->type) 444 switch (req->type)
477 { 445 {
446 case EIO_WD_OPEN:
447 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
448 break;
449
478 case REQ_READDIR: 450 case EIO_READDIR:
479 { 451 {
480 SV *rv = &PL_sv_undef; 452 SV *rv = &PL_sv_undef;
481 453
482 if (req->result >= 0) 454 if (req->result >= 0)
483 { 455 {
484 int i; 456 int i;
485 char *buf = req->ptr2; 457 char *names = (char *)req->ptr2;
458 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 459 AV *av = newAV ();
487 460
488 av_extend (av, req->result - 1); 461 av_extend (av, req->result - 1);
489 462
490 for (i = 0; i < req->result; ++i) 463 for (i = 0; i < req->result; ++i)
491 { 464 {
492 SV *sv = newSVpv (buf, 0); 465 if (req->int1 & EIO_READDIR_DENTS)
466 {
467 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 468
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
494 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);
495 buf += SvCUR (sv) + 1; 497 names += SvCUR (name) + 1;
498 }
496 } 499 }
497 500
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 501 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 502 }
500 503
501 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))));
502 } 508 }
503 break; 509 break;
504 510
505 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:
506 { 517 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 518 SV *rv = &PL_sv_undef;
509 519
520#ifndef _WIN32
510 if (req->result >= 0) 521 if (req->result >= 0)
511 { 522 {
523 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 524 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 525 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 526 * chooses to make it a struct.
515 int symlen;
516 527 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 528 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 529 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 530
520 symlen = snprintf ( 531 rv = sv_2mortal (newRV_noinc ((SV *)hv));
521 sym,
522 sizeof (sym),
523 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result
526 );
527 532
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 533 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 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);
530 } 544 }
545#endif
531 546
532 PUSHs (fh); 547 PUSHs (rv);
533 } 548 }
549
534 break; 550 break;
535 551
536 case REQ_GROUP: 552 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 553 req->int1 = 2; /* mark group as finished */
538 554
539 if (req->sv1) 555 if (req->sv1)
540 { 556 {
541 int i; 557 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 561 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 562 PUSHs (*av_fetch (av, i, 0));
547 } 563 }
548 break; 564 break;
549 565
550 case REQ_NOP: 566 case EIO_NOP:
551 case REQ_BUSY: 567 case EIO_BUSY:
552 break; 568 break;
553 569
554 case REQ_READLINK: 570 case EIO_READLINK:
571 case EIO_REALPATH:
555 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)
556 { 604 {
557 SvCUR_set (req->sv2, req->result); 605#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 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
560 } 637 }
638 else
639 PUSHs (sv_result);
561 break; 640 break;
562 641
563 case REQ_STAT: 642 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
564 case REQ_LSTAT: 643 if (req->result > 0)
565 case REQ_FSTAT: 644 SvIV_set (sv_result, 0);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 645 /* FALLTHROUGH */
567 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result)));
570 break;
571
572 case REQ_READ:
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result)));
576 break;
577 646
578 default: 647 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 648 PUSHs (sv_result);
580 break; 649 break;
581 } 650 }
582 651
583 errno = req->errorno; 652 errno = req->errorno;
584 653
585 PUTBACK; 654 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 655 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 656 SPAGAIN;
588 657
658 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
659 SvREFCNT_dec (sv_result);
660 else
661 sv_result_cache = sv_result;
662
589 FREETMPS; 663 FREETMPS;
590 LEAVE; 664 LEAVE;
591 665
592 PUTBACK; 666 PUTBACK;
593 } 667 }
594 668
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 669 return !!SvTRUE (ERRSV);
610} 670}
611 671
672static void
612static void req_destroy (aio_req req) 673req_destroy (aio_req req)
613{ 674{
614 if (req->self) 675 if (req->self)
615 { 676 {
616 sv_unmagic (req->self, PERL_MAGIC_ext); 677 sv_unmagic (req->self, PERL_MAGIC_ext);
617 SvREFCNT_dec (req->self); 678 SvREFCNT_dec (req->self);
618 } 679 }
619 680
620 SvREFCNT_dec (req->sv1); 681 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 682 SvREFCNT_dec (req->sv2);
683 SvREFCNT_dec (req->sv3);
684 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 685 SvREFCNT_dec (req->callback);
623 686
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 687 free (req);
628} 688}
629 689
690static void
630static void req_cancel_subs (aio_req grp) 691req_cancel_subs (aio_req grp)
631{ 692{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 693 if (grp->type != EIO_GROUP)
635 return; 694 return;
636 695
637 SvREFCNT_dec (grp->sv2); 696 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 697 grp->sv2 = 0;
639 698
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 699 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 700}
643 701
644static void req_cancel (aio_req req) 702static void ecb_cold
703create_respipe (void)
645{ 704{
646 req->flags |= FLAG_CANCELLED; 705 if (s_epipe_renew (&respipe))
647 706 croak ("IO::AIO: unable to initialize result pipe");
648 req_cancel_subs (req);
649} 707}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656 708
657static void 709static void
658create_respipe (void) 710poll_wait (void)
659{ 711{
660 int old_readfd = respipe [0];
661
662 if (respipe [1] >= 0)
663 respipe_close (TO_SOCKET (respipe [1]));
664
665#ifdef _WIN32
666 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
667#else
668 if (pipe (respipe))
669#endif
670 croak ("unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693}
694
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread (void)
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788}
789
790static void poll_wait (void)
791{
792 fd_set rfd;
793
794 while (nreqs) 712 while (eio_nreqs ())
795 { 713 {
796 int size; 714 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 715
716 X_LOCK (EIO_POOL->reslock);
798 size = res_queue.size; 717 size = EIO_POOL->res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 718 X_UNLOCK (EIO_POOL->reslock);
800 719
801 if (size) 720 if (size)
802 return; 721 return;
803 722
804 maybe_start_thread (); 723 etp_maybe_start_thread (EIO_POOL);
805 724
806 FD_ZERO (&rfd); 725 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 726 }
811} 727}
812 728
813static int poll_cb (void) 729static int
730poll_cb (void)
814{ 731{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 732 for (;;)
828 { 733 {
829 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)
830 { 842 {
831 maybe_start_thread (); 843 path = AvARRAY (rv)[1];
844 wdob = AvARRAY (rv)[0];
832 845
833 X_LOCK (reslock); 846 if (SvOK (wdob))
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 { 847 {
838 --npending; 848 *wd = SvAIO_WD (wdob);
839 849 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 } 850 }
861 else 851 else
862 { 852 *wd = EIO_INVALID_WD;
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0);
868 }
869
870 count++;
871 }
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 } 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 }
886 864
887 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)));
888 break; 888 break;
889 889
890 poll_wait (); 890 default:
891 891 req->type = type_path;
892 ++maxreqs; 892 req_set_path1 (req, fh_or_path);
893 break;
893 } 894 }
894
895 unblock_sig ();
896 return count;
897} 895}
898 896
899/*****************************************************************************/ 897XS(boot_IO__AIO) ecb_cold;
900/* work around various missing functions */
901 898
902#if !HAVE_PREADWRITE
903# define pread aio_pread
904# define pwrite aio_pwrite
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{
915 ssize_t res;
916 off_t ooffset;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926}
927
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
929{
930 ssize_t res;
931 off_t ooffset;
932
933 X_LOCK (preadwritelock);
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941}
942#endif
943
944#ifndef HAVE_FUTIMES
945
946# define utimes(path,times) aio_utimes (path, times)
947# define futimes(fd,times) aio_futimes (fd, times)
948
949int aio_utimes (const char *filename, const struct timeval times[2])
950{
951 if (times)
952 {
953 struct utimbuf buf;
954
955 buf.actime = times[0].tv_sec;
956 buf.modtime = times[1].tv_sec;
957
958 return utime (filename, &buf);
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{
966 errno = ENOSYS;
967 return -1;
968}
969
970#endif
971
972#if !HAVE_FDATASYNC
973# define fdatasync fsync
974#endif
975
976#if !HAVE_READAHEAD
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
978
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
980{
981 size_t todo = count;
982 dBUF;
983
984 while (todo > 0)
985 {
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987
988 pread (fd, aio_buf, len, offset);
989 offset += len;
990 todo -= len;
991 }
992
993 errno = 0;
994 return count;
995}
996
997#endif
998
999#if !HAVE_READDIR_R
1000# define readdir_r aio_readdir_r
1001
1002static mutex_t readdirlock = X_MUTEX_INIT;
1003
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1005{
1006 X_DIRENT *e;
1007 int errorno;
1008
1009 X_LOCK (readdirlock);
1010
1011 e = readdir (dirp);
1012 errorno = errno;
1013
1014 if (e)
1015 {
1016 *res = ent;
1017 strcpy (ent->d_name, e->d_name);
1018 }
1019 else
1020 *res = 0;
1021
1022 X_UNLOCK (readdirlock);
1023
1024 errno = errorno;
1025 return e ? 0 : -1;
1026}
1027#endif
1028
1029/* sendfile always needs emulation */
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1031{
1032 ssize_t res;
1033
1034 if (!count)
1035 return 0;
1036
1037#if HAVE_SENDFILE
1038# if __linux
1039 res = sendfile (ofd, ifd, &offset, count);
1040
1041# elif __freebsd
1042 /*
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts
1044 * wasted on making it similar to other I/O functions.
1045 */
1046 {
1047 off_t sbytes;
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049
1050 if (res < 0 && sbytes)
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1052 res = sbytes;
1053 }
1054
1055# elif __hpux
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079
1080 if (res < 0
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1082#if __solaris
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090
1091 res = 0;
1092
1093 while (count)
1094 {
1095 ssize_t cnt;
1096
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099 if (cnt <= 0)
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104
1105 cnt = write (ofd, aio_buf, cnt);
1106
1107 if (cnt <= 0)
1108 {
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112
1113 offset += cnt;
1114 res += cnt;
1115 count -= cnt;
1116 }
1117 }
1118
1119 return res;
1120}
1121
1122/* read a full directory */
1123static void scandir_ (aio_req req, worker *self)
1124{
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181}
1182
1183/*****************************************************************************/
1184
1185X_THREAD_PROC (aio_proc)
1186{
1187 aio_req req;
1188 struct timespec ts;
1189 worker *self = (worker *)thr_arg;
1190
1191 /* try to distribute timeouts somewhat randomly */
1192 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1193
1194 for (;;)
1195 {
1196 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1197
1198 X_LOCK (reqlock);
1199
1200 for (;;)
1201 {
1202 self->req = req = reqq_shift (&req_queue);
1203
1204 if (req)
1205 break;
1206
1207 ++idle;
1208
1209 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1210 == ETIMEDOUT)
1211 {
1212 if (idle > max_idle)
1213 {
1214 --idle;
1215 X_UNLOCK (reqlock);
1216 X_LOCK (wrklock);
1217 --started;
1218 X_UNLOCK (wrklock);
1219 goto quit;
1220 }
1221
1222 /* we are allowed to idle, so do so without any timeout */
1223 X_COND_WAIT (reqwait, reqlock);
1224 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1225 }
1226
1227 --idle;
1228 }
1229
1230 --nready;
1231
1232 X_UNLOCK (reqlock);
1233
1234 errno = 0; /* strictly unnecessary */
1235
1236 if (!(req->flags & FLAG_CANCELLED))
1237 switch (req->type)
1238 {
1239 case REQ_READ: req->result = req->offs >= 0
1240 ? pread (req->int1, req->ptr1, req->size, req->offs)
1241 : read (req->int1, req->ptr1, req->size); break;
1242 case REQ_WRITE: req->result = req->offs >= 0
1243 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1244 : write (req->int1, req->ptr1, req->size); break;
1245
1246 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1247 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1248
1249 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1250 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1251 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1252
1253 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1254 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1255 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1256 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1257 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1258 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1259
1260 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1261 case REQ_CLOSE: req->result = close (req->int1); break;
1262 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1263 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1264 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1265 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1266 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1267 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1268 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1269 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1270
1271 case REQ_SYNC: req->result = 0; sync (); break;
1272 case REQ_FSYNC: req->result = fsync (req->int1); break;
1273 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1274
1275 case REQ_READDIR: scandir_ (req, self); break;
1276
1277 case REQ_BUSY:
1278#ifdef _WIN32
1279 Sleep (req->nv1 * 1000.);
1280#else
1281 {
1282 struct timeval tv;
1283
1284 tv.tv_sec = req->nv1;
1285 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1286
1287 req->result = select (0, 0, 0, 0, &tv);
1288 }
1289#endif
1290 break;
1291
1292 case REQ_UTIME:
1293 case REQ_FUTIME:
1294 {
1295 struct timeval tv[2];
1296 struct timeval *times;
1297
1298 if (req->nv1 != -1. || req->nv2 != -1.)
1299 {
1300 tv[0].tv_sec = req->nv1;
1301 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1302 tv[1].tv_sec = req->nv2;
1303 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1304
1305 times = tv;
1306 }
1307 else
1308 times = 0;
1309
1310
1311 req->result = req->type == REQ_FUTIME
1312 ? futimes (req->int1, times)
1313 : utimes (req->ptr1, times);
1314 }
1315
1316 case REQ_GROUP:
1317 case REQ_NOP:
1318 break;
1319
1320 case REQ_QUIT:
1321 goto quit;
1322
1323 default:
1324 req->result = -1;
1325 break;
1326 }
1327
1328 req->errorno = errno;
1329
1330 X_LOCK (reslock);
1331
1332 ++npending;
1333
1334 if (!reqq_push (&res_queue, req))
1335 {
1336 /* write a dummy byte to the pipe so fh becomes ready */
1337 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1338
1339 /* optionally signal the main thread asynchronously */
1340 if (main_sig)
1341 pthread_kill (main_tid, main_sig);
1342 }
1343
1344 self->req = 0;
1345 worker_clear (self);
1346
1347 X_UNLOCK (reslock);
1348 }
1349
1350quit:
1351 X_LOCK (wrklock);
1352 worker_free (self);
1353 X_UNLOCK (wrklock);
1354
1355 return 0;
1356}
1357
1358/*****************************************************************************/
1359
1360static void atfork_prepare (void)
1361{
1362 X_LOCK (wrklock);
1363 X_LOCK (reqlock);
1364 X_LOCK (reslock);
1365#if !HAVE_PREADWRITE
1366 X_LOCK (preadwritelock);
1367#endif
1368#if !HAVE_READDIR_R
1369 X_LOCK (readdirlock);
1370#endif
1371}
1372
1373static void atfork_parent (void)
1374{
1375#if !HAVE_READDIR_R
1376 X_UNLOCK (readdirlock);
1377#endif
1378#if !HAVE_PREADWRITE
1379 X_UNLOCK (preadwritelock);
1380#endif
1381 X_UNLOCK (reslock);
1382 X_UNLOCK (reqlock);
1383 X_UNLOCK (wrklock);
1384}
1385
1386static void atfork_child (void)
1387{
1388 aio_req prv;
1389
1390 while (prv = reqq_shift (&req_queue))
1391 req_destroy (prv);
1392
1393 while (prv = reqq_shift (&res_queue))
1394 req_destroy (prv);
1395
1396 while (wrk_first.next != &wrk_first)
1397 {
1398 worker *wrk = wrk_first.next;
1399
1400 if (wrk->req)
1401 req_destroy (wrk->req);
1402
1403 worker_clear (wrk);
1404 worker_free (wrk);
1405 }
1406
1407 started = 0;
1408 idle = 0;
1409 nreqs = 0;
1410 nready = 0;
1411 npending = 0;
1412
1413 create_respipe ();
1414
1415 atfork_parent ();
1416}
1417
1418#define dREQ \
1419 aio_req req; \
1420 int req_pri = next_pri; \
1421 next_pri = DEFAULT_PRI + PRI_BIAS; \
1422 \
1423 if (SvOK (callback) && !SvROK (callback)) \
1424 croak ("callback must be undef or of reference type"); \
1425 \
1426 Newz (0, req, 1, aio_cb); \
1427 if (!req) \
1428 croak ("out of memory during aio_req allocation"); \
1429 \
1430 req->callback = newSVsv (callback); \
1431 req->pri = req_pri
1432
1433#define REQ_SEND \
1434 req_send (req); \
1435 \
1436 if (GIMME_V != G_VOID) \
1437 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1438
1439MODULE = IO::AIO PACKAGE = IO::AIO 899MODULE = IO::AIO PACKAGE = IO::AIO
1440 900
1441PROTOTYPES: ENABLE 901PROTOTYPES: ENABLE
1442 902
1443BOOT: 903BOOT:
1444{ 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
1445 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);
1446 1138
1447 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1139 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1448 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1140 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1449 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1450 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1451 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1452#ifdef _WIN32
1453 X_MUTEX_CHECK (wrklock);
1454 X_MUTEX_CHECK (reslock);
1455 X_MUTEX_CHECK (reqlock);
1456 X_MUTEX_CHECK (reqwait);
1457 X_MUTEX_CHECK (preadwritelock);
1458 X_MUTEX_CHECK (readdirlock);
1459 1141
1460 X_COND_CHECK (reqwait); 1142 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1461#else
1462 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1463 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1464#endif
1465 1143
1466 create_respipe (); 1144 reinit ();
1467
1468 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1469} 1145}
1470 1146
1471void 1147void
1148reinit ()
1149 PROTOTYPE:
1150
1151void
1472max_poll_reqs (int nreqs) 1152max_poll_reqs (unsigned int nreqs)
1473 PROTOTYPE: $ 1153 PROTOTYPE: $
1474 CODE: 1154 CODE:
1475 max_poll_reqs = nreqs; 1155 eio_set_max_poll_reqs (nreqs);
1476 1156
1477void 1157void
1478max_poll_time (double nseconds) 1158max_poll_time (double nseconds)
1479 PROTOTYPE: $ 1159 PROTOTYPE: $
1480 CODE: 1160 CODE:
1481 max_poll_time = nseconds * AIO_TICKS; 1161 eio_set_max_poll_time (nseconds);
1482 1162
1483void 1163void
1484min_parallel (int nthreads) 1164min_parallel (unsigned int nthreads)
1485 PROTOTYPE: $
1486
1487void
1488max_parallel (int nthreads)
1489 PROTOTYPE: $
1490
1491void
1492max_idle (int nthreads)
1493 PROTOTYPE: $ 1165 PROTOTYPE: $
1494 CODE: 1166 CODE:
1495 set_max_idle (nthreads); 1167 eio_set_min_parallel (nthreads);
1496 1168
1497int 1169void
1498max_outstanding (int maxreqs) 1170max_parallel (unsigned int nthreads)
1499 PROTOTYPE: $ 1171 PROTOTYPE: $
1500 CODE: 1172 CODE:
1501 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:
1502 max_outstanding = maxreqs; 1191 max_outstanding = maxreqs;
1503 OUTPUT:
1504 RETVAL
1505 1192
1506void 1193void
1507aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1194aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1508 PROTOTYPE: $$$;$
1509 PPCODE: 1195 PPCODE:
1510{ 1196{
1511 dREQ; 1197 dREQ;
1512 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
1513 req->type = REQ_OPEN; 1211 req->type = EIO_OPEN;
1514 req->sv1 = newSVsv (pathname); 1212 req_set_path1 (req, pathname);
1515 req->ptr1 = SvPVbyte_nolen (req->sv1);
1516 req->int1 = flags; 1213 req->int1 = flags;
1517 req->mode = mode; 1214 req->int2 = mode;
1518 1215
1519 REQ_SEND; 1216 REQ_SEND;
1520} 1217}
1521 1218
1522void 1219void
1523aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1220aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1524 PROTOTYPE: $;$
1525 ALIAS: 1221 ALIAS:
1526 aio_fsync = REQ_FSYNC 1222 aio_fsync = EIO_FSYNC
1527 aio_fdatasync = REQ_FDATASYNC 1223 aio_fdatasync = EIO_FDATASYNC
1224 aio_syncfs = EIO_SYNCFS
1528 PPCODE: 1225 PPCODE:
1529{ 1226{
1227 int fd = s_fileno_croak (fh, 0);
1530 dREQ; 1228 dREQ;
1531 1229
1532 req->type = ix; 1230 req->type = ix;
1533 req->sv1 = newSVsv (fh); 1231 req->sv1 = newSVsv (fh);
1534 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1232 req->int1 = fd;
1535 1233
1536 REQ_SEND (req); 1234 REQ_SEND;
1537} 1235}
1538 1236
1539int
1540_dup (int fd)
1541 PROTOTYPE: $
1542 CODE:
1543 RETVAL = dup (fd);
1544 OUTPUT:
1545 RETVAL
1546
1547void 1237void
1548_aio_close (int fd, SV *callback=&PL_sv_undef) 1238aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1549 PROTOTYPE: $;$
1550 PPCODE: 1239 PPCODE:
1551{ 1240{
1241 int fd = s_fileno_croak (fh, 0);
1552 dREQ; 1242 dREQ;
1553 1243
1554 req->type = REQ_CLOSE; 1244 req->type = EIO_SYNC_FILE_RANGE;
1245 req->sv1 = newSVsv (fh);
1555 req->int1 = fd; 1246 req->int1 = fd;
1247 req->offs = offset;
1248 req->size = nbytes;
1249 req->int2 = flags;
1556 1250
1557 REQ_SEND (req); 1251 REQ_SEND;
1558} 1252}
1559 1253
1560void 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
1561aio_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)
1562 ALIAS: 1323 ALIAS:
1563 aio_read = REQ_READ 1324 aio_read = EIO_READ
1564 aio_write = REQ_WRITE 1325 aio_write = EIO_WRITE
1565 PROTOTYPE: $$$$$;$
1566 PPCODE: 1326 PPCODE:
1567{ 1327{
1568 STRLEN svlen; 1328 STRLEN svlen;
1329 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1569 char *svptr = SvPVbyte (data, svlen); 1330 char *svptr = SvPVbyte (data, svlen);
1570 UV len = SvUV (length); 1331 UV len = SvUV (length);
1571 1332
1572 SvUPGRADE (data, SVt_PV);
1573 SvPOK_on (data);
1574
1575 if (dataoffset < 0) 1333 if (dataoffset < 0)
1576 dataoffset += svlen; 1334 dataoffset += svlen;
1577 1335
1578 if (dataoffset < 0 || dataoffset > svlen) 1336 if (dataoffset < 0 || dataoffset > svlen)
1579 croak ("dataoffset outside of data scalar"); 1337 croak ("dataoffset outside of data scalar");
1580 1338
1581 if (ix == REQ_WRITE) 1339 if (ix == EIO_WRITE)
1582 { 1340 {
1583 /* write: check length and adjust. */ 1341 /* write: check length and adjust. */
1584 if (!SvOK (length) || len + dataoffset > svlen) 1342 if (!SvOK (length) || len + dataoffset > svlen)
1585 len = svlen - dataoffset; 1343 len = svlen - dataoffset;
1586 } 1344 }
1587 else 1345 else
1588 { 1346 {
1589 /* read: grow scalar as necessary */ 1347 /* read: check type and grow scalar as necessary */
1348 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1590 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");
1591 } 1352 }
1592
1593 if (len < 0)
1594 croak ("length must not be negative");
1595 1353
1596 { 1354 {
1597 dREQ; 1355 dREQ;
1598 1356
1599 req->type = ix; 1357 req->type = ix;
1600 req->sv1 = newSVsv (fh); 1358 req->sv1 = newSVsv (fh);
1601 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1359 req->int1 = fd;
1602 : IoOFP (sv_2io (fh)));
1603 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1360 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1604 req->size = len; 1361 req->size = len;
1605 req->sv2 = SvREFCNT_inc (data); 1362 req->sv2 = SvREFCNT_inc (data);
1606 req->ptr1 = (char *)svptr + dataoffset; 1363 req->ptr2 = (char *)svptr + dataoffset;
1607 req->stroffset = dataoffset; 1364 req->stroffset = dataoffset;
1608 1365
1609 if (!SvREADONLY (data)) 1366 if (!SvREADONLY (data))
1610 { 1367 {
1611 SvREADONLY_on (data); 1368 SvREADONLY_on (data);
… …
1615 REQ_SEND; 1372 REQ_SEND;
1616 } 1373 }
1617} 1374}
1618 1375
1619void 1376void
1620aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1377aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1621 PROTOTYPE: $$;$ 1378 ALIAS:
1379 aio_ioctl = EIO_IOCTL
1380 aio_fcntl = EIO_FCNTL
1622 PPCODE: 1381 PPCODE:
1623{ 1382{
1624 SV *data; 1383 int fd = s_fileno_croak (fh, 0);
1625 dREQ; 1384 char *svptr;
1626 1385
1627 data = newSV (NAME_MAX); 1386 if (SvPOK (arg) || !SvNIOK (arg))
1628 SvPOK_on (data);
1629
1630 req->type = REQ_READLINK;
1631 req->sv1 = newSVsv (path);
1632 req->ptr2 = SvPVbyte_nolen (req->sv1);
1633 req->sv2 = data;
1634 req->ptr1 = SvPVbyte_nolen (data);
1635
1636 REQ_SEND;
1637}
1638
1639void
1640aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1641 PROTOTYPE: $$$$;$
1642 PPCODE:
1643{
1644 dREQ;
1645
1646 req->type = REQ_SENDFILE;
1647 req->sv1 = newSVsv (out_fh);
1648 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1649 req->sv2 = newSVsv (in_fh);
1650 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1651 req->offs = SvVAL64 (in_offset);
1652 req->size = length;
1653
1654 REQ_SEND;
1655}
1656
1657void
1658aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1659 PROTOTYPE: $$$;$
1660 PPCODE:
1661{
1662 dREQ;
1663
1664 req->type = REQ_READAHEAD;
1665 req->sv1 = newSVsv (fh);
1666 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1667 req->offs = SvVAL64 (offset);
1668 req->size = length;
1669
1670 REQ_SEND;
1671}
1672
1673void
1674aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1675 ALIAS:
1676 aio_stat = REQ_STAT
1677 aio_lstat = REQ_LSTAT
1678 PPCODE:
1679{
1680 dREQ;
1681
1682 req->ptr2 = malloc (sizeof (Stat_t));
1683 if (!req->ptr2)
1684 { 1387 {
1685 req_destroy (req); 1388 STRLEN svlen;
1686 croak ("out of memory during aio_stat statdata allocation"); 1389 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1687 } 1390#ifdef IOCPARM_LEN
1391 STRLEN need = IOCPARM_LEN (request);
1392#else
1393 STRLEN need = 256;
1394#endif
1688 1395
1689 req->flags |= FLAG_PTR2_FREE; 1396 if (svlen < need)
1690 req->sv1 = newSVsv (fh_or_path); 1397 svptr = SvGROW (arg, need);
1691
1692 if (SvPOK (fh_or_path))
1693 {
1694 req->type = ix;
1695 req->ptr1 = SvPVbyte_nolen (req->sv1);
1696 } 1398 }
1697 else 1399 else
1400 svptr = (char *)SvIV (arg);
1401
1698 { 1402 {
1403 dREQ;
1404
1699 req->type = REQ_FSTAT; 1405 req->type = ix;
1700 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;
1701 } 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);
1702 1427
1703 REQ_SEND; 1428 REQ_SEND;
1704} 1429}
1705 1430
1706void 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
1707aio_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)
1708 PPCODE: 1499 PPCODE:
1709{ 1500{
1710 dREQ; 1501 dREQ;
1711 1502
1712 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1503 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1713 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1504 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1714 req->sv1 = newSVsv (fh_or_path); 1505 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1715
1716 if (SvPOK (fh_or_path))
1717 {
1718 req->type = REQ_UTIME;
1719 req->ptr1 = SvPVbyte_nolen (req->sv1);
1720 }
1721 else
1722 {
1723 req->type = REQ_FUTIME;
1724 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1725 }
1726 1506
1727 REQ_SEND; 1507 REQ_SEND;
1728} 1508}
1729 1509
1730void 1510void
1731aio_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)
1732 PPCODE: 1512 PPCODE:
1733{ 1513{
1734 dREQ; 1514 dREQ;
1735 1515
1736 req->sv1 = newSVsv (fh_or_path);
1737 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1516 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1738 1517 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1739 if (SvPOK (fh_or_path))
1740 {
1741 req->type = REQ_TRUNCATE;
1742 req->ptr1 = SvPVbyte_nolen (req->sv1);
1743 }
1744 else
1745 {
1746 req->type = REQ_FTRUNCATE;
1747 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1748 }
1749 1518
1750 REQ_SEND; 1519 REQ_SEND;
1751} 1520}
1752 1521
1753void 1522void
1754aio_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)
1755 PPCODE: 1524 PPCODE:
1756{ 1525{
1757 dREQ; 1526 dREQ;
1758 1527
1759 req->mode = mode; 1528 req->int2 = mode;
1760 req->sv1 = newSVsv (fh_or_path); 1529 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1761
1762 if (SvPOK (fh_or_path))
1763 {
1764 req->type = REQ_CHMOD;
1765 req->ptr1 = SvPVbyte_nolen (req->sv1);
1766 }
1767 else
1768 {
1769 req->type = REQ_FCHMOD;
1770 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1771 }
1772 1530
1773 REQ_SEND; 1531 REQ_SEND;
1774} 1532}
1775 1533
1776void 1534void
1777aio_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)
1778 PPCODE: 1536 PPCODE:
1779{ 1537{
1780 dREQ; 1538 dREQ;
1781 1539
1782 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1540 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1783 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1541 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1784 req->sv1 = newSVsv (fh_or_path); 1542 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1785
1786 if (SvPOK (fh_or_path))
1787 {
1788 req->type = REQ_CHOWN;
1789 req->ptr1 = SvPVbyte_nolen (req->sv1);
1790 }
1791 else
1792 {
1793 req->type = REQ_FCHOWN;
1794 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1795 }
1796 1543
1797 REQ_SEND; 1544 REQ_SEND;
1798} 1545}
1799 1546
1800void 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
1801aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1578aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1802 ALIAS: 1579 ALIAS:
1803 aio_unlink = REQ_UNLINK 1580 aio_unlink = EIO_UNLINK
1804 aio_rmdir = REQ_RMDIR 1581 aio_rmdir = EIO_RMDIR
1805 aio_readdir = REQ_READDIR 1582 aio_readdir = EIO_READDIR
1806 PPCODE: 1583 PPCODE:
1807{ 1584{
1808 dREQ; 1585 dREQ;
1809 1586
1810 req->type = ix; 1587 req->type = ix;
1811 req->sv1 = newSVsv (pathname); 1588 req_set_path1 (req, pathname);
1812 req->ptr1 = SvPVbyte_nolen (req->sv1);
1813 1589
1814 REQ_SEND; 1590 REQ_SEND;
1815} 1591}
1816 1592
1817void 1593void
1818aio_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
1819 PPCODE: 1599 PPCODE:
1820{ 1600{
1821 dREQ; 1601 eio_wd wd2 = 0;
1822
1823 req->type = REQ_MKDIR;
1824 req->sv1 = newSVsv (pathname);
1825 req->ptr1 = SvPVbyte_nolen (req->sv1);
1826 req->mode = mode;
1827
1828 REQ_SEND;
1829}
1830
1831void
1832aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1833 ALIAS:
1834 aio_link = REQ_LINK
1835 aio_symlink = REQ_SYMLINK
1836 aio_rename = REQ_RENAME
1837 PPCODE:
1838{
1839 dREQ; 1602 dREQ;
1840 1603
1841 req->type = ix; 1604 req->type = ix;
1842 req->sv2 = newSVsv (oldpath); 1605 req_set_path1 (req, oldpath);
1843 req->ptr2 = SvPVbyte_nolen (req->sv2); 1606 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1844 req->sv1 = newSVsv (newpath); 1607 req->int3 = (long)wd2;
1845 req->ptr1 = SvPVbyte_nolen (req->sv1);
1846 1608
1847 REQ_SEND; 1609 REQ_SEND;
1848} 1610}
1849 1611
1850void 1612void
1851aio_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)
1852 PPCODE: 1614 PPCODE:
1853{ 1615{
1616 eio_wd wd2 = 0;
1854 dREQ; 1617 dREQ;
1855 1618
1856 req->type = REQ_MKNOD; 1619 req->type = EIO_RENAME;
1857 req->sv1 = newSVsv (pathname); 1620 req_set_path1 (req, oldpath);
1858 req->ptr1 = SvPVbyte_nolen (req->sv1); 1621 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1859 req->mode = (mode_t)mode; 1622 req->int2 = flags;
1860 req->offs = dev; 1623 req->int3 = (long)wd2;
1861 1624
1862 REQ_SEND; 1625 REQ_SEND;
1863} 1626}
1864 1627
1865void 1628void
1866aio_busy (double delay, SV *callback=&PL_sv_undef) 1629aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1867 PPCODE: 1630 PPCODE:
1868{ 1631{
1869 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}
1870 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
1871 req->type = REQ_BUSY; 1748 req->type = EIO_BUSY;
1872 req->nv1 = delay < 0. ? 0. : delay; 1749 req->nv1 = delay < 0. ? 0. : delay;
1873 1750
1874 REQ_SEND; 1751 REQ_SEND;
1875} 1752}
1876 1753
1877void 1754void
1878aio_group (SV *callback=&PL_sv_undef) 1755aio_group (SV *callback = &PL_sv_undef)
1879 PROTOTYPE: ;$
1880 PPCODE: 1756 PPCODE:
1881{ 1757{
1882 dREQ; 1758 dREQ;
1883 1759
1884 req->type = REQ_GROUP; 1760 req->type = EIO_GROUP;
1885 1761
1762 PUTBACK;
1886 req_send (req); 1763 req_submit (req);
1764 SPAGAIN;
1765
1887 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1766 XPUSHs (req_sv (req, aio_grp_stash));
1888} 1767}
1889 1768
1890void 1769void
1891aio_nop (SV *callback=&PL_sv_undef) 1770aio_nop (SV *callback = &PL_sv_undef)
1892 ALIAS: 1771 ALIAS:
1893 aio_nop = REQ_NOP 1772 aio_nop = EIO_NOP
1894 aio_sync = REQ_SYNC 1773 aio_sync = EIO_SYNC
1895 PPCODE: 1774 PPCODE:
1896{ 1775{
1897 dREQ; 1776 dREQ;
1898 1777
1899 req->type = ix; 1778 req->type = ix;
1900 1779
1901 REQ_SEND; 1780 REQ_SEND;
1902} 1781}
1903 1782
1904int 1783int
1905aioreq_pri (int pri = 0) 1784aioreq_pri (int pri = NO_INIT)
1906 PROTOTYPE: ;$
1907 CODE: 1785 CODE:
1908 RETVAL = next_pri - PRI_BIAS; 1786 RETVAL = next_pri;
1909 if (items > 0) 1787 if (items > 0)
1910 { 1788 {
1911 if (pri < PRI_MIN) pri = PRI_MIN; 1789 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1912 if (pri > PRI_MAX) pri = PRI_MAX; 1790 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1913 next_pri = pri + PRI_BIAS; 1791 next_pri = pri;
1914 } 1792 }
1915 OUTPUT: 1793 OUTPUT:
1916 RETVAL 1794 RETVAL
1917 1795
1918void 1796void
1919aioreq_nice (int nice = 0) 1797aioreq_nice (int nice = 0)
1920 CODE: 1798 CODE:
1921 nice = next_pri - nice; 1799 nice = next_pri - nice;
1922 if (nice < PRI_MIN) nice = PRI_MIN; 1800 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1923 if (nice > PRI_MAX) nice = PRI_MAX; 1801 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1924 next_pri = nice + PRI_BIAS; 1802 next_pri = nice;
1925 1803
1926void 1804void
1927flush () 1805flush ()
1928 PROTOTYPE:
1929 CODE: 1806 CODE:
1930 while (nreqs) 1807 while (eio_nreqs ())
1931 { 1808 {
1932 poll_wait (); 1809 poll_wait ();
1933 poll_cb (); 1810 poll_cb ();
1934 } 1811 }
1935 1812
1936int 1813int
1937poll() 1814poll ()
1938 PROTOTYPE:
1939 CODE: 1815 CODE:
1940 poll_wait (); 1816 poll_wait ();
1941 RETVAL = poll_cb (); 1817 RETVAL = poll_cb ();
1942 OUTPUT: 1818 OUTPUT:
1943 RETVAL 1819 RETVAL
1944 1820
1945int 1821int
1946poll_fileno() 1822poll_fileno ()
1947 PROTOTYPE:
1948 CODE: 1823 CODE:
1949 RETVAL = respipe [0]; 1824 RETVAL = s_epipe_fd (&respipe);
1950 OUTPUT: 1825 OUTPUT:
1951 RETVAL 1826 RETVAL
1952 1827
1953int 1828int
1954poll_cb(...) 1829poll_cb (...)
1955 PROTOTYPE: 1830 PROTOTYPE:
1956 CODE: 1831 CODE:
1957 RETVAL = poll_cb (); 1832 RETVAL = poll_cb ();
1958 OUTPUT: 1833 OUTPUT:
1959 RETVAL 1834 RETVAL
1960 1835
1961void 1836void
1962poll_wait() 1837poll_wait ()
1963 PROTOTYPE:
1964 CODE: 1838 CODE:
1965 poll_wait (); 1839 poll_wait ();
1966 1840
1967void
1968setsig (int signum = SIGIO)
1969 PROTOTYPE: ;$
1970 CODE:
1971{
1972 if (block_sig_level)
1973 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1974
1975 X_LOCK (reslock);
1976 main_tid = pthread_self ();
1977 main_sig = signum;
1978 X_UNLOCK (reslock);
1979
1980 if (main_sig && npending)
1981 pthread_kill (main_tid, main_sig);
1982}
1983
1984void
1985aio_block (SV *cb)
1986 PROTOTYPE: &
1987 PPCODE:
1988{
1989 int count;
1990
1991 block_sig ();
1992 PUSHMARK (SP);
1993 PUTBACK;
1994 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1995 unblock_sig ();
1996
1997 if (SvTRUE (ERRSV))
1998 croak (0);
1999
2000 XSRETURN (count);
2001}
2002
2003int 1841int
2004nreqs() 1842nreqs ()
2005 PROTOTYPE:
2006 CODE: 1843 CODE:
2007 RETVAL = nreqs; 1844 RETVAL = eio_nreqs ();
2008 OUTPUT: 1845 OUTPUT:
2009 RETVAL 1846 RETVAL
2010 1847
2011int 1848int
2012nready() 1849nready ()
2013 PROTOTYPE:
2014 CODE: 1850 CODE:
2015 RETVAL = get_nready (); 1851 RETVAL = eio_nready ();
2016 OUTPUT: 1852 OUTPUT:
2017 RETVAL 1853 RETVAL
2018 1854
2019int 1855int
2020npending() 1856npending ()
2021 PROTOTYPE:
2022 CODE: 1857 CODE:
2023 RETVAL = get_npending (); 1858 RETVAL = eio_npending ();
2024 OUTPUT: 1859 OUTPUT:
2025 RETVAL 1860 RETVAL
2026 1861
2027int 1862int
2028nthreads() 1863nthreads ()
2029 PROTOTYPE:
2030 CODE: 1864 CODE:
2031 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1865 RETVAL = eio_nthreads ();
2032 RETVAL = started;
2033 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2034 OUTPUT: 1866 OUTPUT:
2035 RETVAL 1867 RETVAL
2036 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
2037PROTOTYPES: 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}
2038 2166
2039MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2167MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2040 2168
2041void 2169void
2042cancel (aio_req_ornot req) 2170cancel (aio_req_ornot req)
2043 CODE: 2171 CODE:
2044 req_cancel (req); 2172 eio_cancel (req);
2045 2173
2046void 2174void
2047cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2175cb (aio_req_ornot req, SV *callback = NO_INIT)
2048 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
2049 SvREFCNT_dec (req->callback); 2185 SvREFCNT_dec (req->callback);
2050 req->callback = newSVsv (callback); 2186 req->callback = SvREFCNT_inc (cb_cv);
2187 }
2188}
2051 2189
2052MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2190MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2053 2191
2054void 2192void
2055add (aio_req grp, ...) 2193add (aio_req grp, ...)
2056 PPCODE: 2194 PPCODE:
2057{ 2195{
2058 int i; 2196 int i;
2059 aio_req req;
2060
2061 if (main_sig && !block_sig_level)
2062 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2063 2197
2064 if (grp->int1 == 2) 2198 if (grp->int1 == 2)
2065 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");
2066 2200
2067 for (i = 1; i < items; ++i ) 2201 for (i = 1; i < items; ++i )
2068 { 2202 {
2203 aio_req req;
2204
2069 if (GIMME_V != G_VOID) 2205 if (GIMME_V != G_VOID)
2070 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2206 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2071 2207
2072 req = SvAIO_REQ (ST (i)); 2208 req = SvAIO_REQ (ST (i));
2073 2209
2074 if (req) 2210 if (req)
2075 { 2211 eio_grp_add (grp, req);
2076 ++grp->size;
2077 req->grp = grp;
2078
2079 req->grp_prev = 0;
2080 req->grp_next = grp->grp_first;
2081
2082 if (grp->grp_first)
2083 grp->grp_first->grp_prev = req;
2084
2085 grp->grp_first = req;
2086 }
2087 } 2212 }
2088} 2213}
2089 2214
2090void 2215void
2091cancel_subs (aio_req_ornot req) 2216cancel_subs (aio_req_ornot req)
… …
2100 AV *av; 2225 AV *av;
2101 2226
2102 grp->errorno = errno; 2227 grp->errorno = errno;
2103 2228
2104 av = newAV (); 2229 av = newAV ();
2230 av_extend (av, items - 1);
2105 2231
2106 for (i = 1; i < items; ++i ) 2232 for (i = 1; i < items; ++i )
2107 av_push (av, newSVsv (ST (i))); 2233 av_push (av, newSVsv (ST (i)));
2108 2234
2109 SvREFCNT_dec (grp->sv1); 2235 SvREFCNT_dec (grp->sv1);
… …
2116 grp->errorno = errorno; 2242 grp->errorno = errorno;
2117 2243
2118void 2244void
2119limit (aio_req grp, int limit) 2245limit (aio_req grp, int limit)
2120 CODE: 2246 CODE:
2121 grp->int2 = limit; 2247 eio_grp_limit (grp, limit);
2122 aio_grp_feed (grp);
2123 2248
2124void 2249void
2125feed (aio_req grp, SV *callback=&PL_sv_undef) 2250feed (aio_req grp, SV *callback = &PL_sv_undef)
2126 CODE: 2251 CODE:
2127{ 2252{
2128 SvREFCNT_dec (grp->sv2); 2253 SvREFCNT_dec (grp->sv2);
2129 grp->sv2 = newSVsv (callback); 2254 grp->sv2 = newSVsv (callback);
2255 grp->feed = aio_grp_feed;
2130 2256
2131 if (grp->int2 <= 0) 2257 if (grp->int2 <= 0)
2132 grp->int2 = 2; 2258 grp->int2 = 2;
2133 2259
2134 aio_grp_feed (grp); 2260 eio_grp_limit (grp, grp->int2);
2135} 2261}
2136 2262

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