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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.102 by root, Sun Jun 3 09:44:17 2007 UTC vs.
Revision 1.239 by root, Tue Feb 23 19:42:43 2016 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8 8
9#include "autoconf/config.h" 9#include "schmorp.h"
10 10
11#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h> 12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
18#include <limits.h> 16#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 17#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 18#include <sched.h>
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. on't complain if this fails for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
36
37/* perl namespace pollution */
38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
46#ifdef _WIN32
47
48 // perl overrides all those nice libc functions
49
50 #undef malloc
51 #undef free
52 #undef open
53 #undef read
54 #undef write
55 #undef send
56 #undef recv
57 #undef stat
58 #undef lstat
59 #undef fstat
60 #undef truncate
61 #undef ftruncate
62 #undef open
63 #undef link
64 #undef close
65 #undef unlink
66 #undef mkdir
67 #undef rmdir
68 #undef rename
69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
79
80 #define EIO_STRUCT_STAT struct _stati64
81 #define EIO_STRUCT_STATI64
82
83#else
84
85 #include <sys/time.h>
86 #include <sys/select.h>
87 #include <unistd.h>
23#include <utime.h> 88 #include <utime.h>
89 #include <signal.h>
24 90
25#if HAVE_SENDFILE 91 #define EIO_STRUCT_STAT Stat_t
26# if __linux 92
27# include <sys/sendfile.h> 93#endif
28# elif __freebsd 94
29# include <sys/socket.h> 95/*****************************************************************************/
30# include <sys/uio.h> 96
31# elif __hpux 97#if __GNUC__ >= 3
32# include <sys/socket.h> 98# define expect(expr,value) __builtin_expect ((expr),(value))
33# elif __solaris /* not yet */ 99#else
34# include <sys/sendfile.h> 100# define expect(expr,value) (expr)
101#endif
102
103#define expect_false(expr) expect ((expr) != 0, 0)
104#define expect_true(expr) expect ((expr) != 0, 1)
105
106/*****************************************************************************/
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109typedef int aio_rfd; /* read file desriptor */
110typedef int aio_wfd; /* write file descriptor */
111
112static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
113
114#define EIO_REQ_MEMBERS \
115 SV *callback; \
116 SV *sv1, *sv2; \
117 SV *sv3, *sv4; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126static int req_invoke (eio_req *req);
127#define EIO_FINISH(req) req_invoke (req)
128static void req_destroy (eio_req *grp);
129#define EIO_DESTROY(req) req_destroy (req)
130
131#include "libeio/eio.c"
132
133#if !HAVE_POSIX_FADVISE
134# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#if !HAVE_POSIX_MADVISE
138# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
139#endif
140
141#ifndef MAP_ANONYMOUS
142# ifdef MAP_ANON
143# define MAP_ANONYMOUS MAP_ANON
35# else 144# else
36# error sendfile support requested but not available 145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 146# endif
38#endif 147#endif
39 148
40/* number of seconds after which idle threads exit */ 149/* defines all sorts of constants to 0 unless they are already defined */
41#define IDLE_TIMEOUT 10 150/* also provides const_iv_ and const_niv_ macros for them */
151#include "def0.h"
42 152
43/* used for struct dirent, AIX doesn't provide it */ 153#ifndef makedev
44#ifndef NAME_MAX 154# define makedev(maj,min) (((maj) << 8) | (min))
45# define NAME_MAX 4096
46#endif 155#endif
47 156#ifndef major
48/* buffer size for various temporary buffers */ 157# define major(dev) ((dev) >> 8)
49#define AIO_BUFSIZE 65536
50
51/* use NV for 32 bit perls as it allows larger offsets */
52#if IVSIZE >= 8
53# define SvVAL64 SvIV
54#else
55# define SvVAL64 SvNV
56#endif 158#endif
159#ifndef minor
160# define minor(dev) ((dev) & 0xff)
161#endif
57 162
58#define dBUF \ 163#if PAGESIZE <= 0
59 char *aio_buf; \ 164# define PAGESIZE sysconf (_SC_PAGESIZE)
60 LOCK (wrklock); \ 165#endif
61 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
62 UNLOCK (wrklock); \
63 if (!aio_buf) \
64 return -1;
65 166
66typedef SV SV8; /* byte-sv, used for argument-checking */ 167/*****************************************************************************/
67 168
68enum { 169static void
69 REQ_QUIT, 170fiemap (eio_req *req)
70 REQ_OPEN, REQ_CLOSE,
71 REQ_READ, REQ_WRITE,
72 REQ_READAHEAD, REQ_SENDFILE,
73 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
74 REQ_UTIME, REQ_FUTIME,
75 REQ_CHMOD, REQ_FCHMOD,
76 REQ_CHOWN, REQ_FCHOWN,
77 REQ_FSYNC, REQ_FDATASYNC,
78 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
79 REQ_MKNOD, REQ_READDIR,
80 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
81 REQ_GROUP, REQ_NOP,
82 REQ_BUSY,
83};
84
85#define AIO_REQ_KLASS "IO::AIO::REQ"
86#define AIO_GRP_KLASS "IO::AIO::GRP"
87
88typedef struct aio_cb
89{ 171{
90 struct aio_cb *volatile next; 172 req->result = -1;
91 173
92 SV *callback; 174#if HAVE_FIEMAP
93 SV *sv1, *sv2; 175 /* assume some c99 */
94 void *ptr1, *ptr2; 176 struct fiemap *fiemap = 0;
95 off_t offs; 177 size_t end_offset;
96 size_t size; 178 int count = req->int3;
97 ssize_t result;
98 double nv1, nv2;
99 179
100 STRLEN stroffset; 180 req->flags |= EIO_FLAG_PTR1_FREE;
101 int type;
102 int int1, int2, int3;
103 int errorno;
104 mode_t mode; /* open */
105 181
106 unsigned char flags; 182 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
107 unsigned char pri; 183 /* increase in 3.5kb steps */
184 if (count < 0)
185 count = 8;
108 186
109 SV *self; /* the perl counterpart of this request, if any */ 187 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
110 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 188 errno = ENOMEM;
111} aio_cb; 189 if (!fiemap)
112
113enum {
114 FLAG_CANCELLED = 0x01, /* request was cancelled */
115 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
117};
118
119typedef aio_cb *aio_req;
120typedef aio_cb *aio_req_ornot;
121
122enum {
123 PRI_MIN = -4,
124 PRI_MAX = 4,
125
126 DEFAULT_PRI = 0,
127 PRI_BIAS = -PRI_MIN,
128 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
129};
130
131#define AIO_TICKS ((1000000 + 1023) >> 10)
132
133static unsigned int max_poll_time = 0;
134static unsigned int max_poll_reqs = 0;
135
136/* calculcate time difference in ~1/AIO_TICKS of a second */
137static int tvdiff (struct timeval *tv1, struct timeval *tv2)
138{
139 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
140 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
141}
142
143static thread_t main_tid;
144static int main_sig;
145static int block_sig_level;
146
147void block_sig ()
148{
149 sigset_t ss;
150
151 if (block_sig_level++)
152 return; 190 return;
153 191
154 if (!main_sig) 192 req->ptr1 = fiemap;
193
194 fiemap->fm_start = req->offs;
195 fiemap->fm_length = req->size;
196 fiemap->fm_flags = req->int2;
197 fiemap->fm_extent_count = count;
198
199 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
155 return; 200 return;
156 201
157 sigemptyset (&ss); 202 if (req->int3 >= 0 /* not autosizing */
158 sigaddset (&ss, main_sig); 203 || !fiemap->fm_mapped_extents /* no more extents */
159 pthread_sigmask (SIG_BLOCK, &ss, 0); 204 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
160} 205 goto done;
161 206
162void unblock_sig () 207 /* else we have to loop -
163{ 208 * it would be tempting (actually I tried that first) to just query the
164 sigset_t ss; 209 * number of extents needed, but linux often feels like not returning all
210 * extents, without telling us it left any out. this complicates
211 * this quite a bit.
212 */
165 213
166 if (--block_sig_level) 214 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
167 return;
168 215
169 if (!main_sig) 216 for (;;)
170 return;
171
172 sigemptyset (&ss);
173 sigaddset (&ss, main_sig);
174 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
175}
176
177static int next_pri = DEFAULT_PRI + PRI_BIAS;
178
179static unsigned int started, idle, wanted;
180
181/* worker threads management */
182static mutex_t wrklock = MUTEX_INIT;
183
184typedef struct worker {
185 /* locked by wrklock */
186 struct worker *prev, *next;
187
188 thread_t tid;
189
190 /* locked by reslock, reqlock or wrklock */
191 aio_req req; /* currently processed request */
192 void *dbuf;
193 DIR *dirp;
194} worker;
195
196static worker wrk_first = { &wrk_first, &wrk_first, 0 };
197
198static void worker_clear (worker *wrk)
199{
200 if (wrk->dirp)
201 { 217 {
202 closedir (wrk->dirp); 218 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
203 wrk->dirp = 0; 219 char scratch[3072];
204 } 220 struct fiemap *incmap = (struct fiemap *)scratch;
205 221
206 if (wrk->dbuf) 222 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
207 { 223 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
208 free (wrk->dbuf); 224 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
209 wrk->dbuf = 0; 225 incmap->fm_flags = fiemap->fm_flags;
210 } 226 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
211}
212 227
213static void worker_free (worker *wrk) 228 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
214{
215 wrk->next->prev = wrk->prev;
216 wrk->prev->next = wrk->next;
217
218 free (wrk);
219}
220
221static volatile unsigned int nreqs, nready, npending;
222static volatile unsigned int max_idle = 4;
223static volatile unsigned int max_outstanding = 0xffffffff;
224static int respipe [2];
225
226static mutex_t reslock = MUTEX_INIT;
227static mutex_t reqlock = MUTEX_INIT;
228static cond_t reqwait = COND_INIT;
229
230#if WORDACCESS_UNSAFE
231
232static unsigned int get_nready ()
233{
234 unsigned int retval;
235
236 LOCK (reqlock);
237 retval = nready;
238 UNLOCK (reqlock);
239
240 return retval;
241}
242
243static unsigned int get_npending ()
244{
245 unsigned int retval;
246
247 LOCK (reslock);
248 retval = npending;
249 UNLOCK (reslock);
250
251 return retval;
252}
253
254static unsigned int get_nthreads ()
255{
256 unsigned int retval;
257
258 LOCK (wrklock);
259 retval = started;
260 UNLOCK (wrklock);
261
262 return retval;
263}
264
265#else
266
267# define get_nready() nready
268# define get_npending() npending
269# define get_nthreads() started
270
271#endif
272
273/*
274 * a somewhat faster data structure might be nice, but
275 * with 8 priorities this actually needs <20 insns
276 * per shift, the most expensive operation.
277 */
278typedef struct {
279 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
280 int size;
281} reqq;
282
283static reqq req_queue;
284static reqq res_queue;
285
286int reqq_push (reqq *q, aio_req req)
287{
288 int pri = req->pri;
289 req->next = 0;
290
291 if (q->qe[pri])
292 {
293 q->qe[pri]->next = req;
294 q->qe[pri] = req;
295 }
296 else
297 q->qe[pri] = q->qs[pri] = req;
298
299 return q->size++;
300}
301
302aio_req reqq_shift (reqq *q)
303{
304 int pri;
305
306 if (!q->size)
307 return 0; 229 return;
308 230
309 --q->size; 231 if (!incmap->fm_mapped_extents)
232 goto done;
310 233
311 for (pri = NUM_PRI; pri--; ) 234 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
312 { 235 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
313 aio_req req = q->qs[pri]; 236 errno = ENOMEM;
314
315 if (req) 237 if (!fiemap)
238 return;
239
240 req->ptr1 = fiemap;
241
242 for (count = 0; count < incmap->fm_mapped_extents; ++count)
316 { 243 {
317 if (!(q->qs[pri] = req->next)) 244 struct fiemap_extent *e = incmap->fm_extents + count;
318 q->qe[pri] = 0;
319 245
320 return req; 246 if (e->fe_logical + e->fe_length >= end_offset)
247 goto done;
248
249 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
250
251 if (e->fe_flags & FIEMAP_EXTENT_LAST)
252 goto done;
253
321 } 254 }
322 } 255 }
323 256
324 abort (); 257done:
325} 258 req->result = 0;
326 259
327static int poll_cb (); 260#else
328static int req_invoke (aio_req req); 261 errno = ENOSYS;
262#endif
263}
264
265/*****************************************************************************/
266
267enum {
268 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
269};
270
271typedef eio_req *aio_req;
272typedef eio_req *aio_req_ornot;
273typedef eio_wd aio_wd;
274
275static SV *on_next_submit;
276static int next_pri = EIO_PRI_DEFAULT;
277static int max_outstanding;
278
279static s_epipe respipe;
280
329static void req_destroy (aio_req req); 281static void req_destroy (aio_req req);
330static void req_cancel (aio_req req); 282static void req_cancel (aio_req req);
331 283
284static void
285want_poll (void)
286{
287 /* write a dummy byte to the pipe so fh becomes ready */
288 s_epipe_signal (&respipe);
289}
290
291static void
292done_poll (void)
293{
294 /* read any signals sent by the worker threads */
295 s_epipe_drain (&respipe);
296}
297
332/* must be called at most once */ 298/* must be called at most once */
333static SV *req_sv (aio_req req, const char *klass) 299static SV *
300req_sv (aio_req req, HV *stash)
334{ 301{
335 if (!req->self) 302 if (!req->self)
336 { 303 {
337 req->self = (SV *)newHV (); 304 req->self = (SV *)newHV ();
338 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 305 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
339 } 306 }
340 307
341 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 308 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
342} 309}
343 310
344static aio_req SvAIO_REQ (SV *sv) 311static SV *
312newSVaio_wd (aio_wd wd)
313{
314 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
315}
316
317static aio_req
318SvAIO_REQ (SV *sv)
345{ 319{
346 MAGIC *mg; 320 MAGIC *mg;
347 321
348 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 322 if (!SvROK (sv)
323 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
324 || (SvSTASH (SvRV (sv)) != aio_grp_stash
325 && SvSTASH (SvRV (sv)) != aio_req_stash
326 && !sv_derived_from (sv, "IO::AIO::REQ")))
349 croak ("object of class " AIO_REQ_KLASS " expected"); 327 croak ("object of class IO::AIO::REQ expected");
350 328
351 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 329 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
352 330
353 return mg ? (aio_req)mg->mg_ptr : 0; 331 return mg ? (aio_req)mg->mg_ptr : 0;
354} 332}
355 333
334static aio_wd
335SvAIO_WD (SV *sv)
336{
337 if (!SvROK (sv)
338 || SvTYPE (SvRV (sv)) != SVt_PVMG
339 || SvSTASH (SvRV (sv)) != aio_wd_stash)
340 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
341
342 return (aio_wd)(long)SvIVX (SvRV (sv));
343}
344
345static SV *
346newmortalFH (int fd, int flags)
347{
348 if (fd < 0)
349 return &PL_sv_undef;
350
351 GV *gv = (GV *)sv_newmortal ();
352 char sym[64];
353 int symlen;
354
355 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
356 gv_init (gv, aio_stash, sym, symlen, 0);
357
358 symlen = snprintf (
359 sym,
360 sizeof (sym),
361 "%s&=%d",
362 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
363 fd
364 );
365
366 return do_open (gv, sym, symlen, 0, 0, 0, 0)
367 ? (SV *)gv : &PL_sv_undef;
368}
369
370static void
356static void aio_grp_feed (aio_req grp) 371aio_grp_feed (aio_req grp)
357{ 372{
358 block_sig (); 373 if (grp->sv2 && SvOK (grp->sv2))
359
360 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
361 { 374 {
362 int old_len = grp->size;
363
364 if (grp->sv2 && SvOK (grp->sv2))
365 {
366 dSP; 375 dSP;
367 376
368 ENTER; 377 ENTER;
369 SAVETMPS; 378 SAVETMPS;
370 PUSHMARK (SP); 379 PUSHMARK (SP);
371 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 380 XPUSHs (req_sv (grp, aio_grp_stash));
372 PUTBACK; 381 PUTBACK;
373 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 382 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
374 SPAGAIN; 383 SPAGAIN;
375 FREETMPS; 384 FREETMPS;
376 LEAVE; 385 LEAVE;
377 }
378
379 /* stop if no progress has been made */
380 if (old_len == grp->size)
381 {
382 SvREFCNT_dec (grp->sv2);
383 grp->sv2 = 0;
384 break;
385 }
386 } 386 }
387
388 unblock_sig ();
389} 387}
390 388
391static void aio_grp_dec (aio_req grp) 389static void
390req_submit (eio_req *req)
392{ 391{
393 --grp->size; 392 eio_submit (req);
394 393
395 /* call feeder, if applicable */ 394 if (expect_false (on_next_submit))
396 aio_grp_feed (grp);
397
398 /* finish, if done */
399 if (!grp->size && grp->int1)
400 { 395 {
401 block_sig (); 396 dSP;
397 SV *cb = sv_2mortal (on_next_submit);
402 398
403 if (!req_invoke (grp)) 399 on_next_submit = 0;
404 {
405 req_destroy (grp);
406 unblock_sig ();
407 croak (0);
408 }
409 400
410 req_destroy (grp); 401 PUSHMARK (SP);
411 unblock_sig (); 402 PUTBACK;
403 call_sv (cb, G_DISCARD | G_EVAL);
412 } 404 }
413} 405}
414 406
407static int
415static int req_invoke (aio_req req) 408req_invoke (eio_req *req)
416{ 409{
417 dSP;
418
419 if (req->flags & FLAG_SV2_RO_OFF) 410 if (req->flags & FLAG_SV2_RO_OFF)
420 SvREADONLY_off (req->sv2); 411 SvREADONLY_off (req->sv2);
421 412
422 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 413 if (!EIO_CANCELLED (req) && req->callback)
423 { 414 {
415 dSP;
416 static SV *sv_result_cache; /* caches the result integer SV */
417 SV *sv_result;
418
424 ENTER; 419 ENTER;
425 SAVETMPS; 420 SAVETMPS;
426 PUSHMARK (SP); 421 PUSHMARK (SP);
427 EXTEND (SP, 1); 422 EXTEND (SP, 1);
428 423
424 /* do not recreate the result IV from scratch each time */
425 if (expect_true (sv_result_cache))
426 {
427 sv_result = sv_result_cache; sv_result_cache = 0;
428 SvIV_set (sv_result, req->result);
429 SvIOK_only (sv_result);
430 }
431 else
432 {
433 sv_result = newSViv (req->result);
434 SvREADONLY_on (sv_result);
435 }
436
429 switch (req->type) 437 switch (req->type)
430 { 438 {
439 case EIO_WD_OPEN:
440 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
441 break;
442
431 case REQ_READDIR: 443 case EIO_READDIR:
432 { 444 {
433 SV *rv = &PL_sv_undef; 445 SV *rv = &PL_sv_undef;
434 446
435 if (req->result >= 0) 447 if (req->result >= 0)
436 { 448 {
437 int i; 449 int i;
438 char *buf = req->ptr2; 450 char *names = (char *)req->ptr2;
451 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
439 AV *av = newAV (); 452 AV *av = newAV ();
440 453
441 av_extend (av, req->result - 1); 454 av_extend (av, req->result - 1);
442 455
443 for (i = 0; i < req->result; ++i) 456 for (i = 0; i < req->result; ++i)
444 { 457 {
445 SV *sv = newSVpv (buf, 0); 458 if (req->int1 & EIO_READDIR_DENTS)
459 {
460 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
446 461
462 if (req->int1 & EIO_READDIR_CUSTOM2)
463 {
464 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
465 AV *avent = newAV ();
466
467 av_extend (avent, 2);
468
469 if (!sv_type [ent->type])
470 {
471 sv_type [ent->type] = newSViv (ent->type);
472 SvREADONLY_on (sv_type [ent->type]);
473 }
474
475 av_store (avent, 0, namesv);
476 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
477 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
478
479 av_store (av, i, newRV_noinc ((SV *)avent));
480 }
481 else
447 av_store (av, i, sv); 482 av_store (av, i, namesv);
483
484 ++ent;
485 }
486 else
487 {
488 SV *name = newSVpv (names, 0);
489 av_store (av, i, name);
448 buf += SvCUR (sv) + 1; 490 names += SvCUR (name) + 1;
491 }
449 } 492 }
450 493
451 rv = sv_2mortal (newRV_noinc ((SV *)av)); 494 rv = sv_2mortal (newRV_noinc ((SV *)av));
452 } 495 }
453 496
454 PUSHs (rv); 497 PUSHs (rv);
498
499 if (req->int1 & EIO_READDIR_CUSTOM1)
500 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
455 } 501 }
456 break; 502 break;
457 503
458 case REQ_OPEN: 504 case EIO_OPEN:
505 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
506 break;
507
508 case EIO_STATVFS:
509 case EIO_FSTATVFS:
459 { 510 {
460 /* convert fd to fh */ 511 SV *rv = &PL_sv_undef;
461 SV *fh; 512
513#ifndef _WIN32
514 if (req->result >= 0)
515 {
516 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
517 HV *hv = newHV ();
518 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
519 * chooses to make it a struct.
520 */
521 unsigned long fsid = 0;
522 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
462 523
463 PUSHs (sv_2mortal (newSViv (req->result))); 524 rv = sv_2mortal (newRV_noinc ((SV *)hv));
464 PUTBACK;
465 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
466 SPAGAIN;
467 525
468 fh = POPs; 526 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
469 PUSHMARK (SP); 527 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
528 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
529 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
530 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
531 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
532 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
533 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
534 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
535 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
536 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
537 }
538#endif
539
470 XPUSHs (fh); 540 PUSHs (rv);
471 } 541 }
542
472 break; 543 break;
473 544
474 case REQ_GROUP: 545 case EIO_GROUP:
475 req->int1 = 2; /* mark group as finished */ 546 req->int1 = 2; /* mark group as finished */
476 547
477 if (req->sv1) 548 if (req->sv1)
478 { 549 {
479 int i; 550 int i;
… …
483 for (i = 0; i <= AvFILL (av); ++i) 554 for (i = 0; i <= AvFILL (av); ++i)
484 PUSHs (*av_fetch (av, i, 0)); 555 PUSHs (*av_fetch (av, i, 0));
485 } 556 }
486 break; 557 break;
487 558
488 case REQ_NOP: 559 case EIO_NOP:
489 case REQ_BUSY: 560 case EIO_BUSY:
490 break; 561 break;
491 562
492 case REQ_READLINK: 563 case EIO_READLINK:
564 case EIO_REALPATH:
493 if (req->result > 0) 565 if (req->result > 0)
566 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
567 break;
568
569 case EIO_STAT:
570 case EIO_LSTAT:
571 case EIO_FSTAT:
572 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
573
574 if (!(PL_laststatval = req->result))
575 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
576 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
577
578 PUSHs (sv_result);
579 break;
580
581 case EIO_SEEK:
582 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
583 break;
584
585 case EIO_READ:
586 {
587 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
588 *SvEND (req->sv2) = 0;
589 SvPOK_only (req->sv2);
590 SvSETMAGIC (req->sv2);
591 PUSHs (sv_result);
592 }
593 break;
594
595 case EIO_CUSTOM:
596 if (req->feed == fiemap)
494 { 597 {
495 SvCUR_set (req->sv2, req->result); 598#if HAVE_FIEMAP
496 *SvEND (req->sv2) = 0;
497 PUSHs (req->sv2); 599 if (!req->result)
600 {
601 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
602
603 if (fiemap->fm_extent_count)
604 {
605 AV *av = newAV ();
606 int i;
607
608 while (fiemap->fm_mapped_extents)
609 {
610 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
611 AV *ext_av = newAV ();
612
613 av_store (ext_av, 3, newSVuv (extent->fe_flags));
614 av_store (ext_av, 2, newSVval64 (extent->fe_length));
615 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
616 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
617
618 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
619 }
620
621 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
622 }
623 else
624 {
625 SvIV_set (sv_result, fiemap->fm_mapped_extents);
626 PUSHs (sv_result);
627 }
628 }
629#endif
498 } 630 }
631 else
632 PUSHs (sv_result);
499 break; 633 break;
500 634
501 case REQ_STAT: 635 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
502 case REQ_LSTAT: 636 if (req->result > 0)
503 case REQ_FSTAT: 637 SvIV_set (sv_result, 0);
504 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 638 /* FALLTHROUGH */
505 PL_laststatval = req->result;
506 PL_statcache = *(Stat_t *)(req->ptr2);
507 PUSHs (sv_2mortal (newSViv (req->result)));
508 break;
509
510 case REQ_READ:
511 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
512 *SvEND (req->sv2) = 0;
513 PUSHs (sv_2mortal (newSViv (req->result)));
514 break;
515 639
516 default: 640 default:
517 PUSHs (sv_2mortal (newSViv (req->result))); 641 PUSHs (sv_result);
518 break; 642 break;
519 } 643 }
520 644
521 errno = req->errorno; 645 errno = req->errorno;
522 646
523 PUTBACK; 647 PUTBACK;
524 call_sv (req->callback, G_VOID | G_EVAL); 648 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
525 SPAGAIN; 649 SPAGAIN;
650
651 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
652 SvREFCNT_dec (sv_result);
653 else
654 sv_result_cache = sv_result;
526 655
527 FREETMPS; 656 FREETMPS;
528 LEAVE; 657 LEAVE;
658
659 PUTBACK;
529 } 660 }
530 661
531 if (req->grp)
532 {
533 aio_req grp = req->grp;
534
535 /* unlink request */
536 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
537 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
538
539 if (grp->grp_first == req)
540 grp->grp_first = req->grp_next;
541
542 aio_grp_dec (grp);
543 }
544
545 return !SvTRUE (ERRSV); 662 return !!SvTRUE (ERRSV);
546} 663}
547 664
665static void
548static void req_destroy (aio_req req) 666req_destroy (aio_req req)
549{ 667{
550 if (req->self) 668 if (req->self)
551 { 669 {
552 sv_unmagic (req->self, PERL_MAGIC_ext); 670 sv_unmagic (req->self, PERL_MAGIC_ext);
553 SvREFCNT_dec (req->self); 671 SvREFCNT_dec (req->self);
554 } 672 }
555 673
556 SvREFCNT_dec (req->sv1); 674 SvREFCNT_dec (req->sv1);
557 SvREFCNT_dec (req->sv2); 675 SvREFCNT_dec (req->sv2);
676 SvREFCNT_dec (req->sv3);
677 SvREFCNT_dec (req->sv4);
558 SvREFCNT_dec (req->callback); 678 SvREFCNT_dec (req->callback);
559 679
560 if (req->flags & FLAG_PTR2_FREE)
561 free (req->ptr2);
562
563 Safefree (req); 680 free (req);
564} 681}
565 682
683static void
566static void req_cancel_subs (aio_req grp) 684req_cancel_subs (aio_req grp)
567{ 685{
568 aio_req sub;
569
570 if (grp->type != REQ_GROUP) 686 if (grp->type != EIO_GROUP)
571 return; 687 return;
572 688
573 SvREFCNT_dec (grp->sv2); 689 SvREFCNT_dec (grp->sv2);
574 grp->sv2 = 0; 690 grp->sv2 = 0;
575 691
576 for (sub = grp->grp_first; sub; sub = sub->grp_next) 692 eio_grp_cancel (grp);
577 req_cancel (sub);
578} 693}
579 694
580static void req_cancel (aio_req req) 695static void ecb_cold
696create_respipe (void)
581{ 697{
582 req->flags |= FLAG_CANCELLED; 698 if (s_epipe_renew (&respipe))
583 699 croak ("IO::AIO: unable to initialize result pipe");
584 req_cancel_subs (req);
585} 700}
586 701
587static void *aio_proc (void *arg); 702static void
588 703poll_wait (void)
589static void start_thread (void)
590{ 704{
591 worker *wrk = calloc (1, sizeof (worker));
592
593 if (!wrk)
594 croak ("unable to allocate worker thread data");
595
596 LOCK (wrklock);
597
598 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
599 {
600 wrk->prev = &wrk_first;
601 wrk->next = wrk_first.next;
602 wrk_first.next->prev = wrk;
603 wrk_first.next = wrk;
604 ++started;
605 }
606 else
607 free (wrk);
608
609 UNLOCK (wrklock);
610}
611
612static void maybe_start_thread ()
613{
614 if (get_nthreads () >= wanted)
615 return;
616
617 /* todo: maybe use idle here, but might be less exact */
618 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
619 return;
620
621 start_thread ();
622}
623
624static void req_send (aio_req req)
625{
626 block_sig ();
627
628 ++nreqs;
629
630 LOCK (reqlock);
631 ++nready;
632 reqq_push (&req_queue, req);
633 COND_SIGNAL (reqwait);
634 UNLOCK (reqlock);
635
636 unblock_sig ();
637
638 maybe_start_thread ();
639}
640
641static void end_thread (void)
642{
643 aio_req req;
644
645 Newz (0, req, 1, aio_cb);
646
647 req->type = REQ_QUIT;
648 req->pri = PRI_MAX + PRI_BIAS;
649
650 LOCK (reqlock);
651 reqq_push (&req_queue, req);
652 COND_SIGNAL (reqwait);
653 UNLOCK (reqlock);
654
655 LOCK (wrklock);
656 --started;
657 UNLOCK (wrklock);
658}
659
660static void set_max_idle (int nthreads)
661{
662 if (WORDACCESS_UNSAFE) LOCK (reqlock);
663 max_idle = nthreads <= 0 ? 1 : nthreads;
664 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
665}
666
667static void min_parallel (int nthreads)
668{
669 if (wanted < nthreads)
670 wanted = nthreads;
671}
672
673static void max_parallel (int nthreads)
674{
675 if (wanted > nthreads)
676 wanted = nthreads;
677
678 while (started > wanted)
679 end_thread ();
680}
681
682static void poll_wait ()
683{
684 fd_set rfd;
685
686 while (nreqs) 705 while (eio_nreqs ())
687 { 706 {
688 int size; 707 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 708
709 X_LOCK (EIO_POOL->reslock);
690 size = res_queue.size; 710 size = EIO_POOL->res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 711 X_UNLOCK (EIO_POOL->reslock);
692 712
693 if (size) 713 if (size)
694 return; 714 return;
695 715
696 maybe_start_thread (); 716 etp_maybe_start_thread (EIO_POOL);
697 717
698 FD_ZERO(&rfd); 718 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 719 }
703} 720}
704 721
705static int poll_cb () 722static int
723poll_cb (void)
706{ 724{
707 dSP;
708 int count = 0;
709 int maxreqs = max_poll_reqs;
710 int do_croak = 0;
711 struct timeval tv_start, tv_now;
712 aio_req req;
713
714 if (max_poll_time)
715 gettimeofday (&tv_start, 0);
716
717 block_sig ();
718
719 for (;;) 725 for (;;)
720 { 726 {
721 for (;;) 727 int res = eio_poll ();
728
729 if (res > 0)
730 croak (0);
731
732 if (!max_outstanding || max_outstanding > eio_nreqs ())
733 return res;
734
735 poll_wait ();
736 }
737}
738
739static void ecb_cold
740reinit (void)
741{
742 create_respipe ();
743
744 if (eio_init (want_poll, done_poll) < 0)
745 croak ("IO::AIO: unable to initialise eio library");
746}
747
748/*****************************************************************************/
749
750#if !_POSIX_MAPPED_FILES
751# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
752# define munmap(addr,length) EIO_ENOSYS ()
753#endif
754
755#if !_POSIX_MEMORY_PROTECTION
756# define mprotect(addr,len,prot) EIO_ENOSYS ()
757#endif
758
759#define MMAP_MAGIC PERL_MAGIC_ext
760
761static int ecb_cold
762mmap_free (pTHX_ SV *sv, MAGIC *mg)
763{
764 int old_errno = errno;
765 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
766 errno = old_errno;
767
768 mg->mg_obj = 0; /* just in case */
769
770 SvREADONLY_off (sv);
771
772 if (SvPVX (sv) != mg->mg_ptr)
773 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
774
775 SvCUR_set (sv, 0);
776 SvPVX (sv) = 0;
777 SvOK_off (sv);
778
779 return 0;
780}
781
782static MGVTBL mmap_vtbl = {
783 0, 0, 0, 0, mmap_free
784};
785
786/*****************************************************************************/
787
788static SV *
789get_cb (SV *cb_sv)
790{
791 SvGETMAGIC (cb_sv);
792 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
793}
794
795static aio_req ecb_noinline
796dreq (SV *callback)
797{
798 SV *cb_cv;
799 aio_req req;
800 int req_pri = next_pri;
801 next_pri = EIO_PRI_DEFAULT;
802
803 cb_cv = get_cb (callback);
804
805 req = calloc (sizeof (*req), 1);
806 if (!req)
807 croak ("out of memory during eio_req allocation");
808
809 req->callback = SvREFCNT_inc (cb_cv);
810 req->pri = req_pri;
811
812 return req;
813}
814
815#define dREQ \
816 aio_req req = dreq (callback); \
817
818#define REQ_SEND \
819 PUTBACK; \
820 req_submit (req); \
821 SPAGAIN; \
822 \
823 if (GIMME_V != G_VOID) \
824 XPUSHs (req_sv (req, aio_req_stash));
825
826ecb_inline void
827req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
828{
829 if (expect_false (SvROK (path)))
830 {
831 SV *rv = SvRV (path);
832 SV *wdob;
833
834 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
722 { 835 {
723 maybe_start_thread (); 836 path = AvARRAY (rv)[1];
837 wdob = AvARRAY (rv)[0];
724 838
725 LOCK (reslock); 839 if (SvOK (wdob))
726 req = reqq_shift (&res_queue);
727
728 if (req)
729 { 840 {
730 --npending; 841 *wd = SvAIO_WD (wdob);
731 842 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
732 if (!res_queue.size)
733 {
734 /* read any signals sent by the worker threads */
735 char buf [4];
736 while (read (respipe [0], buf, 4) == 4)
737 ;
738 }
739 }
740
741 UNLOCK (reslock);
742
743 if (!req)
744 break;
745
746 --nreqs;
747
748 if (req->type == REQ_GROUP && req->size)
749 {
750 req->int1 = 1; /* mark request as delayed */
751 continue;
752 } 843 }
753 else 844 else
754 { 845 *wd = EIO_INVALID_WD;
755 if (!req_invoke (req))
756 {
757 req_destroy (req);
758 unblock_sig ();
759 croak (0);
760 }
761
762 count++;
763 }
764
765 req_destroy (req);
766
767 if (maxreqs && !--maxreqs)
768 break;
769
770 if (max_poll_time)
771 {
772 gettimeofday (&tv_now, 0);
773
774 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
775 break;
776 }
777 } 846 }
847 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
848 {
849 *wd = (aio_wd)(long)SvIVX (rv);
850 *wdsv = SvREFCNT_inc_NN (rv);
851 *ptr = ".";
852 return; /* path set to "." */
853 }
854 else
855 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
856 }
778 857
779 if (nreqs <= max_outstanding) 858 *pathsv = newSVsv (path);
859 *ptr = SvPVbyte_nolen (*pathsv);
860}
861
862static void ecb_noinline
863req_set_path1 (aio_req req, SV *path)
864{
865 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
866}
867
868static void ecb_noinline
869req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
870{
871 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
872
873 switch (SvTYPE (rv))
874 {
875 case SVt_PVIO:
876 case SVt_PVLV:
877 case SVt_PVGV:
878 req->type = type_fh;
879 req->sv1 = newSVsv (fh_or_path);
880 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
780 break; 881 break;
781 882
782 poll_wait (); 883 default:
783 884 req->type = type_path;
784 ++maxreqs; 885 req_set_path1 (req, fh_or_path);
886 break;
785 } 887 }
786
787 unblock_sig ();
788 return count;
789} 888}
790 889
791static void create_pipe () 890XS(boot_IO__AIO) ecb_cold;
792{
793 if (pipe (respipe))
794 croak ("unable to initialize result pipe");
795 891
796 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
797 croak ("cannot set result pipe to nonblocking mode");
798
799 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
800 croak ("cannot set result pipe to nonblocking mode");
801}
802
803/*****************************************************************************/
804/* work around various missing functions */
805
806#if !HAVE_PREADWRITE
807# define pread aio_pread
808# define pwrite aio_pwrite
809
810/*
811 * make our pread/pwrite safe against themselves, but not against
812 * normal read/write by using a mutex. slows down execution a lot,
813 * but that's your problem, not mine.
814 */
815static mutex_t preadwritelock = MUTEX_INIT;
816
817static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
818{
819 ssize_t res;
820 off_t ooffset;
821
822 LOCK (preadwritelock);
823 ooffset = lseek (fd, 0, SEEK_CUR);
824 lseek (fd, offset, SEEK_SET);
825 res = read (fd, buf, count);
826 lseek (fd, ooffset, SEEK_SET);
827 UNLOCK (preadwritelock);
828
829 return res;
830}
831
832static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
833{
834 ssize_t res;
835 off_t ooffset;
836
837 LOCK (preadwritelock);
838 ooffset = lseek (fd, 0, SEEK_CUR);
839 lseek (fd, offset, SEEK_SET);
840 res = write (fd, buf, count);
841 lseek (fd, offset, SEEK_SET);
842 UNLOCK (preadwritelock);
843
844 return res;
845}
846#endif
847
848#ifndef HAVE_FUTIMES
849
850# define utimes(path,times) aio_utimes (path, times)
851# define futimes(fd,times) aio_futimes (fd, times)
852
853int aio_utimes (const char *filename, const struct timeval times[2])
854{
855 if (times)
856 {
857 struct utimbuf buf;
858
859 buf.actime = times[0].tv_sec;
860 buf.modtime = times[1].tv_sec;
861
862 return utime (filename, &buf);
863 }
864 else
865 return utime (filename, 0);
866}
867
868int aio_futimes (int fd, const struct timeval tv[2])
869{
870 errno = ENOSYS;
871 return -1;
872}
873
874#endif
875
876#if !HAVE_FDATASYNC
877# define fdatasync fsync
878#endif
879
880#if !HAVE_READAHEAD
881# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
882
883static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
884{
885 dBUF;
886
887 while (count > 0)
888 {
889 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
890
891 pread (fd, aio_buf, len, offset);
892 offset += len;
893 count -= len;
894 }
895
896 errno = 0;
897}
898
899#endif
900
901#if !HAVE_READDIR_R
902# define readdir_r aio_readdir_r
903
904static mutex_t readdirlock = MUTEX_INIT;
905
906static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
907{
908 struct dirent *e;
909 int errorno;
910
911 LOCK (readdirlock);
912
913 e = readdir (dirp);
914 errorno = errno;
915
916 if (e)
917 {
918 *res = ent;
919 strcpy (ent->d_name, e->d_name);
920 }
921 else
922 *res = 0;
923
924 UNLOCK (readdirlock);
925
926 errno = errorno;
927 return e ? 0 : -1;
928}
929#endif
930
931/* sendfile always needs emulation */
932static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
933{
934 ssize_t res;
935
936 if (!count)
937 return 0;
938
939#if HAVE_SENDFILE
940# if __linux
941 res = sendfile (ofd, ifd, &offset, count);
942
943# elif __freebsd
944 /*
945 * Of course, the freebsd sendfile is a dire hack with no thoughts
946 * wasted on making it similar to other I/O functions.
947 */
948 {
949 off_t sbytes;
950 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
951
952 if (res < 0 && sbytes)
953 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
954 res = sbytes;
955 }
956
957# elif __hpux
958 res = sendfile (ofd, ifd, offset, count, 0, 0);
959
960# elif __solaris
961 {
962 struct sendfilevec vec;
963 size_t sbytes;
964
965 vec.sfv_fd = ifd;
966 vec.sfv_flag = 0;
967 vec.sfv_off = offset;
968 vec.sfv_len = count;
969
970 res = sendfilev (ofd, &vec, 1, &sbytes);
971
972 if (res < 0 && sbytes)
973 res = sbytes;
974 }
975
976# endif
977#else
978 res = -1;
979 errno = ENOSYS;
980#endif
981
982 if (res < 0
983 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
984#if __solaris
985 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
986#endif
987 )
988 )
989 {
990 /* emulate sendfile. this is a major pain in the ass */
991 dBUF;
992
993 res = 0;
994
995 while (count)
996 {
997 ssize_t cnt;
998
999 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1000
1001 if (cnt <= 0)
1002 {
1003 if (cnt && !res) res = -1;
1004 break;
1005 }
1006
1007 cnt = write (ofd, aio_buf, cnt);
1008
1009 if (cnt <= 0)
1010 {
1011 if (cnt && !res) res = -1;
1012 break;
1013 }
1014
1015 offset += cnt;
1016 res += cnt;
1017 count -= cnt;
1018 }
1019 }
1020
1021 return res;
1022}
1023
1024/* read a full directory */
1025static void scandir_ (aio_req req, worker *self)
1026{
1027 DIR *dirp;
1028 union
1029 {
1030 struct dirent d;
1031 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1032 } *u;
1033 struct dirent *entp;
1034 char *name, *names;
1035 int memlen = 4096;
1036 int memofs = 0;
1037 int res = 0;
1038 int errorno;
1039
1040 LOCK (wrklock);
1041 self->dirp = dirp = opendir (req->ptr1);
1042 self->dbuf = u = malloc (sizeof (*u));
1043 req->flags |= FLAG_PTR2_FREE;
1044 req->ptr2 = names = malloc (memlen);
1045 UNLOCK (wrklock);
1046
1047 if (dirp && u && names)
1048 for (;;)
1049 {
1050 errno = 0;
1051 readdir_r (dirp, &u->d, &entp);
1052
1053 if (!entp)
1054 break;
1055
1056 name = entp->d_name;
1057
1058 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1059 {
1060 int len = strlen (name) + 1;
1061
1062 res++;
1063
1064 while (memofs + len > memlen)
1065 {
1066 memlen *= 2;
1067 LOCK (wrklock);
1068 req->ptr2 = names = realloc (names, memlen);
1069 UNLOCK (wrklock);
1070
1071 if (!names)
1072 break;
1073 }
1074
1075 memcpy (names + memofs, name, len);
1076 memofs += len;
1077 }
1078 }
1079
1080 if (errno)
1081 res = -1;
1082
1083 req->result = res;
1084}
1085
1086/*****************************************************************************/
1087
1088static void *aio_proc (void *thr_arg)
1089{
1090 aio_req req;
1091 struct timespec ts;
1092 worker *self = (worker *)thr_arg;
1093
1094 /* try to distribute timeouts somewhat evenly */
1095 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1096 * (1000000000UL / 1024UL);
1097
1098 for (;;)
1099 {
1100 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1101
1102 LOCK (reqlock);
1103
1104 for (;;)
1105 {
1106 self->req = req = reqq_shift (&req_queue);
1107
1108 if (req)
1109 break;
1110
1111 ++idle;
1112
1113 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1114 == ETIMEDOUT)
1115 {
1116 if (idle > max_idle)
1117 {
1118 --idle;
1119 UNLOCK (reqlock);
1120 LOCK (wrklock);
1121 --started;
1122 UNLOCK (wrklock);
1123 goto quit;
1124 }
1125
1126 /* we are allowed to idle, so do so without any timeout */
1127 COND_WAIT (reqwait, reqlock);
1128 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1129 }
1130
1131 --idle;
1132 }
1133
1134 --nready;
1135
1136 UNLOCK (reqlock);
1137
1138 errno = 0; /* strictly unnecessary */
1139
1140 if (!(req->flags & FLAG_CANCELLED))
1141 switch (req->type)
1142 {
1143 case REQ_READ: req->result = req->offs >= 0
1144 ? pread (req->int1, req->ptr1, req->size, req->offs)
1145 : read (req->int1, req->ptr1, req->size); break;
1146 case REQ_WRITE: req->result = req->offs >= 0
1147 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1148 : write (req->int1, req->ptr1, req->size); break;
1149
1150 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1151 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1152
1153 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1154 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1155 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1156
1157 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1158 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1159 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1160 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1161
1162 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1163 case REQ_CLOSE: req->result = close (req->int1); break;
1164 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1165 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1166 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1167 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1168 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1169 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1170 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1171 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1172
1173 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1174 case REQ_FSYNC: req->result = fsync (req->int1); break;
1175 case REQ_READDIR: scandir_ (req, self); break;
1176
1177 case REQ_BUSY:
1178 {
1179 struct timeval tv;
1180
1181 tv.tv_sec = req->nv1;
1182 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.;
1183
1184 req->result = select (0, 0, 0, 0, &tv);
1185 }
1186
1187 case REQ_UTIME:
1188 case REQ_FUTIME:
1189 {
1190 struct timeval tv[2];
1191 struct timeval *times;
1192
1193 if (req->nv1 != -1. || req->nv2 != -1.)
1194 {
1195 tv[0].tv_sec = req->nv1;
1196 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1197 tv[1].tv_sec = req->nv2;
1198 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1199
1200 times = tv;
1201 }
1202 else
1203 times = 0;
1204
1205
1206 req->result = req->type == REQ_FUTIME
1207 ? futimes (req->int1, times)
1208 : utimes (req->ptr1, times);
1209 }
1210
1211 case REQ_GROUP:
1212 case REQ_NOP:
1213 break;
1214
1215 case REQ_QUIT:
1216 goto quit;
1217
1218 default:
1219 req->result = -1;
1220 break;
1221 }
1222
1223 req->errorno = errno;
1224
1225 LOCK (reslock);
1226
1227 ++npending;
1228
1229 if (!reqq_push (&res_queue, req))
1230 {
1231 /* write a dummy byte to the pipe so fh becomes ready */
1232 write (respipe [1], &respipe, 1);
1233
1234 /* optionally signal the main thread asynchronously */
1235 if (main_sig)
1236 pthread_kill (main_tid, main_sig);
1237 }
1238
1239 self->req = 0;
1240 worker_clear (self);
1241
1242 UNLOCK (reslock);
1243 }
1244
1245quit:
1246 LOCK (wrklock);
1247 worker_free (self);
1248 UNLOCK (wrklock);
1249
1250 return 0;
1251}
1252
1253/*****************************************************************************/
1254
1255static void atfork_prepare (void)
1256{
1257 LOCK (wrklock);
1258 LOCK (reqlock);
1259 LOCK (reslock);
1260#if !HAVE_PREADWRITE
1261 LOCK (preadwritelock);
1262#endif
1263#if !HAVE_READDIR_R
1264 LOCK (readdirlock);
1265#endif
1266}
1267
1268static void atfork_parent (void)
1269{
1270#if !HAVE_READDIR_R
1271 UNLOCK (readdirlock);
1272#endif
1273#if !HAVE_PREADWRITE
1274 UNLOCK (preadwritelock);
1275#endif
1276 UNLOCK (reslock);
1277 UNLOCK (reqlock);
1278 UNLOCK (wrklock);
1279}
1280
1281static void atfork_child (void)
1282{
1283 aio_req prv;
1284
1285 while (prv = reqq_shift (&req_queue))
1286 req_destroy (prv);
1287
1288 while (prv = reqq_shift (&res_queue))
1289 req_destroy (prv);
1290
1291 while (wrk_first.next != &wrk_first)
1292 {
1293 worker *wrk = wrk_first.next;
1294
1295 if (wrk->req)
1296 req_destroy (wrk->req);
1297
1298 worker_clear (wrk);
1299 worker_free (wrk);
1300 }
1301
1302 started = 0;
1303 idle = 0;
1304 nreqs = 0;
1305 nready = 0;
1306 npending = 0;
1307
1308 close (respipe [0]);
1309 close (respipe [1]);
1310 create_pipe ();
1311
1312 atfork_parent ();
1313}
1314
1315#define dREQ \
1316 aio_req req; \
1317 int req_pri = next_pri; \
1318 next_pri = DEFAULT_PRI + PRI_BIAS; \
1319 \
1320 if (SvOK (callback) && !SvROK (callback)) \
1321 croak ("callback must be undef or of reference type"); \
1322 \
1323 Newz (0, req, 1, aio_cb); \
1324 if (!req) \
1325 croak ("out of memory during aio_req allocation"); \
1326 \
1327 req->callback = newSVsv (callback); \
1328 req->pri = req_pri
1329
1330#define REQ_SEND \
1331 req_send (req); \
1332 \
1333 if (GIMME_V != G_VOID) \
1334 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1335
1336MODULE = IO::AIO PACKAGE = IO::AIO 892MODULE = IO::AIO PACKAGE = IO::AIO
1337 893
1338PROTOTYPES: ENABLE 894PROTOTYPES: ENABLE
1339 895
1340BOOT: 896BOOT:
1341{ 897{
898 static const struct {
899 const char *name;
900 IV iv;
901 } *civ, const_iv[] = {
902# define const_niv(name, value) { # name, (IV) value },
903# define const_iv(name) { # name, (IV) name },
904# define const_eio(name) { # name, (IV) EIO_ ## name },
905
906 /* you have to re-run ./gendef0 after adding/removing any constants here */
907 /* the first block can be undef if missing */
908 const_iv (ENOSYS)
909 const_iv (EXDEV)
910 const_iv (EBADR)
911
912 /* for lseek */
913 const_iv (SEEK_DATA)
914 const_iv (SEEK_HOLE)
915
916 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
917 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
918 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
919 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
920 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
921 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
922
923 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
924 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
925 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928
929 /* the second block will be 0 when missing */
930 const_iv (O_RDONLY)
931 const_iv (O_WRONLY)
932 const_iv (O_RDWR)
933 const_iv (O_CREAT)
934 const_iv (O_TRUNC)
935 const_iv (O_EXCL)
936 const_iv (O_APPEND)
937
938 const_iv (O_ASYNC)
939 const_iv (O_DIRECT)
940 const_iv (O_NOATIME)
941
942 const_iv (O_CLOEXEC)
943 const_iv (O_NOCTTY)
944 const_iv (O_NOFOLLOW)
945 const_iv (O_NONBLOCK)
946 const_iv (O_EXEC)
947 const_iv (O_SEARCH)
948 const_iv (O_DIRECTORY)
949 const_iv (O_DSYNC)
950 const_iv (O_RSYNC)
951 const_iv (O_SYNC)
952 const_iv (O_PATH)
953 const_iv (O_TMPFILE)
954 const_iv (O_TTY_INIT)
955
956 const_iv (S_IFIFO)
957 const_iv (S_IFCHR)
958 const_iv (S_IFBLK)
959 const_iv (S_IFLNK)
960 const_iv (S_IFREG)
961 const_iv (S_IFDIR)
962 const_iv (S_IFWHT)
963 const_iv (S_IFSOCK)
964 const_iv (S_IFMT)
965
966 const_iv (ST_RDONLY)
967 const_iv (ST_NOSUID)
968 const_iv (ST_NODEV)
969 const_iv (ST_NOEXEC)
970 const_iv (ST_SYNCHRONOUS)
971 const_iv (ST_MANDLOCK)
972 const_iv (ST_WRITE)
973 const_iv (ST_APPEND)
974 const_iv (ST_IMMUTABLE)
975 const_iv (ST_NOATIME)
976 const_iv (ST_NODIRATIME)
977 const_iv (ST_RELATIME)
978
979 const_iv (PROT_NONE)
980 const_iv (PROT_EXEC)
981 const_iv (PROT_READ)
982 const_iv (PROT_WRITE)
983
984 const_iv (MAP_PRIVATE)
985 const_iv (MAP_SHARED)
986 const_iv (MAP_FIXED)
987 const_iv (MAP_ANONYMOUS)
988
989 /* linuxish */
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
994 const_iv (MAP_GROWSDOWN)
995 const_iv (MAP_32BIT)
996 const_iv (MAP_HUGETLB)
997 const_iv (MAP_STACK)
998
999 const_iv (FIEMAP_FLAG_SYNC)
1000 const_iv (FIEMAP_FLAG_XATTR)
1001 const_iv (FIEMAP_FLAGS_COMPAT)
1002 const_iv (FIEMAP_EXTENT_LAST)
1003 const_iv (FIEMAP_EXTENT_UNKNOWN)
1004 const_iv (FIEMAP_EXTENT_DELALLOC)
1005 const_iv (FIEMAP_EXTENT_ENCODED)
1006 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1007 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1008 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1009 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1010 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1011 const_iv (FIEMAP_EXTENT_MERGED)
1012 const_iv (FIEMAP_EXTENT_SHARED)
1013
1014 const_iv (SPLICE_F_MOVE)
1015 const_iv (SPLICE_F_NONBLOCK)
1016 const_iv (SPLICE_F_MORE)
1017 const_iv (SPLICE_F_GIFT)
1018
1019 /* these are libeio constants, and are independent of gendef0 */
1020 const_eio (SEEK_SET)
1021 const_eio (SEEK_CUR)
1022 const_eio (SEEK_END)
1023
1024 const_eio (MCL_FUTURE)
1025 const_eio (MCL_CURRENT)
1026
1027 const_eio (MS_ASYNC)
1028 const_eio (MS_INVALIDATE)
1029 const_eio (MS_SYNC)
1030
1031 const_eio (MT_MODIFY)
1032
1033 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1034 const_eio (SYNC_FILE_RANGE_WRITE)
1035 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1036
1037 const_eio (FALLOC_FL_KEEP_SIZE)
1038 const_eio (FALLOC_FL_PUNCH_HOLE)
1039 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1040 const_eio (FALLOC_FL_ZERO_RANGE)
1041
1042 const_eio (READDIR_DENTS)
1043 const_eio (READDIR_DIRS_FIRST)
1044 const_eio (READDIR_STAT_ORDER)
1045 const_eio (READDIR_FOUND_UNKNOWN)
1046
1047 const_eio (DT_UNKNOWN)
1048 const_eio (DT_FIFO)
1049 const_eio (DT_CHR)
1050 const_eio (DT_DIR)
1051 const_eio (DT_BLK)
1052 const_eio (DT_REG)
1053 const_eio (DT_LNK)
1054 const_eio (DT_SOCK)
1055 const_eio (DT_WHT)
1056 };
1057
1342 HV *stash = gv_stashpv ("IO::AIO", 1); 1058 aio_stash = gv_stashpv ("IO::AIO" , 1);
1059 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1060 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1061 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1343 1062
1344 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1063 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1345 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1064 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1346 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1347 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1348 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1349 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1350 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1351 1065
1352 create_pipe (); 1066 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1353 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1354}
1355 1067
1068 reinit ();
1069}
1070
1356void 1071void
1072reinit ()
1073 PROTOTYPE:
1074
1075void
1357max_poll_reqs (int nreqs) 1076max_poll_reqs (unsigned int nreqs)
1358 PROTOTYPE: $ 1077 PROTOTYPE: $
1359 CODE: 1078 CODE:
1360 max_poll_reqs = nreqs; 1079 eio_set_max_poll_reqs (nreqs);
1361 1080
1362void 1081void
1363max_poll_time (double nseconds) 1082max_poll_time (double nseconds)
1364 PROTOTYPE: $ 1083 PROTOTYPE: $
1365 CODE: 1084 CODE:
1366 max_poll_time = nseconds * AIO_TICKS; 1085 eio_set_max_poll_time (nseconds);
1367 1086
1368void 1087void
1369min_parallel (int nthreads) 1088min_parallel (unsigned int nthreads)
1370 PROTOTYPE: $
1371
1372void
1373max_parallel (int nthreads)
1374 PROTOTYPE: $
1375
1376void
1377max_idle (int nthreads)
1378 PROTOTYPE: $ 1089 PROTOTYPE: $
1379 CODE: 1090 CODE:
1380 set_max_idle (nthreads); 1091 eio_set_min_parallel (nthreads);
1381 1092
1382int 1093void
1383max_outstanding (int maxreqs) 1094max_parallel (unsigned int nthreads)
1384 PROTOTYPE: $ 1095 PROTOTYPE: $
1385 CODE: 1096 CODE:
1386 RETVAL = max_outstanding; 1097 eio_set_max_parallel (nthreads);
1098
1099void
1100max_idle (unsigned int nthreads)
1101 PROTOTYPE: $
1102 CODE:
1103 eio_set_max_idle (nthreads);
1104
1105void
1106idle_timeout (unsigned int seconds)
1107 PROTOTYPE: $
1108 CODE:
1109 eio_set_idle_timeout (seconds);
1110
1111void
1112max_outstanding (unsigned int maxreqs)
1113 PROTOTYPE: $
1114 CODE:
1387 max_outstanding = maxreqs; 1115 max_outstanding = maxreqs;
1388 OUTPUT:
1389 RETVAL
1390 1116
1391void 1117void
1392aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1118aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1393 PROTOTYPE: $$$;$
1394 PPCODE: 1119 PPCODE:
1395{ 1120{
1396 dREQ; 1121 dREQ;
1397 1122
1123 req->type = EIO_WD_OPEN;
1124 req_set_path1 (req, pathname);
1125
1126 REQ_SEND;
1127}
1128
1129void
1130aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1131 PPCODE:
1132{
1133 dREQ;
1134
1398 req->type = REQ_OPEN; 1135 req->type = EIO_OPEN;
1399 req->sv1 = newSVsv (pathname); 1136 req_set_path1 (req, pathname);
1400 req->ptr1 = SvPVbyte_nolen (req->sv1);
1401 req->int1 = flags; 1137 req->int1 = flags;
1402 req->mode = mode; 1138 req->int2 = mode;
1403 1139
1404 REQ_SEND; 1140 REQ_SEND;
1405} 1141}
1406 1142
1407void 1143void
1408aio_close (SV *fh, SV *callback=&PL_sv_undef) 1144aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1409 PROTOTYPE: $;$
1410 ALIAS: 1145 ALIAS:
1411 aio_close = REQ_CLOSE
1412 aio_fsync = REQ_FSYNC 1146 aio_fsync = EIO_FSYNC
1413 aio_fdatasync = REQ_FDATASYNC 1147 aio_fdatasync = EIO_FDATASYNC
1148 aio_syncfs = EIO_SYNCFS
1414 PPCODE: 1149 PPCODE:
1415{ 1150{
1151 int fd = s_fileno_croak (fh, 0);
1416 dREQ; 1152 dREQ;
1417 1153
1418 req->type = ix; 1154 req->type = ix;
1419 req->sv1 = newSVsv (fh); 1155 req->sv1 = newSVsv (fh);
1420 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1156 req->int1 = fd;
1421 1157
1422 REQ_SEND (req); 1158 REQ_SEND;
1423} 1159}
1424 1160
1425void 1161void
1162aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1163 PPCODE:
1164{
1165 int fd = s_fileno_croak (fh, 0);
1166 dREQ;
1167
1168 req->type = EIO_SYNC_FILE_RANGE;
1169 req->sv1 = newSVsv (fh);
1170 req->int1 = fd;
1171 req->offs = offset;
1172 req->size = nbytes;
1173 req->int2 = flags;
1174
1175 REQ_SEND;
1176}
1177
1178void
1179aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1180 PPCODE:
1181{
1182 int fd = s_fileno_croak (fh, 0);
1183 dREQ;
1184
1185 req->type = EIO_FALLOCATE;
1186 req->sv1 = newSVsv (fh);
1187 req->int1 = fd;
1188 req->int2 = mode;
1189 req->offs = offset;
1190 req->size = len;
1191
1192 REQ_SEND;
1193}
1194
1195void
1196aio_close (SV *fh, SV *callback = &PL_sv_undef)
1197 PPCODE:
1198{
1199 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1200 int fd = s_fileno_croak (fh, 0);
1201 dREQ;
1202
1203 if (expect_false (close_fd < 0))
1204 {
1205 int pipefd [2];
1206
1207 if (
1208#ifdef _WIN32
1209 _pipe (pipefd, 1, _O_BINARY) < 0
1210#else
1211 pipe (pipefd) < 0
1212 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1213#endif
1214 || close (pipefd [1]) < 0
1215 )
1216 abort (); /*D*/
1217
1218 close_fd = pipefd [0];
1219 }
1220
1221 req->type = EIO_DUP2;
1222 req->int1 = close_fd;
1223 req->sv2 = newSVsv (fh);
1224 req->int2 = fd;
1225
1226 REQ_SEND;
1227}
1228
1229void
1230aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1231 PPCODE:
1232{
1233 int fd = s_fileno_croak (fh, 0);
1234 dREQ;
1235
1236 req->type = EIO_SEEK;
1237 req->sv1 = newSVsv (fh);
1238 req->int1 = fd;
1239 req->offs = SvVAL64 (offset);
1240 req->int2 = whence;
1241
1242 REQ_SEND;
1243}
1244
1245void
1426aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1246aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1427 ALIAS: 1247 ALIAS:
1428 aio_read = REQ_READ 1248 aio_read = EIO_READ
1429 aio_write = REQ_WRITE 1249 aio_write = EIO_WRITE
1430 PROTOTYPE: $$$$$;$
1431 PPCODE: 1250 PPCODE:
1432{ 1251{
1433 STRLEN svlen; 1252 STRLEN svlen;
1253 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1434 char *svptr = SvPVbyte (data, svlen); 1254 char *svptr = SvPVbyte (data, svlen);
1435 UV len = SvUV (length); 1255 UV len = SvUV (length);
1436 1256
1437 SvUPGRADE (data, SVt_PV);
1438 SvPOK_on (data);
1439
1440 if (dataoffset < 0) 1257 if (dataoffset < 0)
1441 dataoffset += svlen; 1258 dataoffset += svlen;
1442 1259
1443 if (dataoffset < 0 || dataoffset > svlen) 1260 if (dataoffset < 0 || dataoffset > svlen)
1444 croak ("dataoffset outside of data scalar"); 1261 croak ("dataoffset outside of data scalar");
1445 1262
1446 if (ix == REQ_WRITE) 1263 if (ix == EIO_WRITE)
1447 { 1264 {
1448 /* write: check length and adjust. */ 1265 /* write: check length and adjust. */
1449 if (!SvOK (length) || len + dataoffset > svlen) 1266 if (!SvOK (length) || len + dataoffset > svlen)
1450 len = svlen - dataoffset; 1267 len = svlen - dataoffset;
1451 } 1268 }
1452 else 1269 else
1453 { 1270 {
1454 /* read: grow scalar as necessary */ 1271 /* read: check type and grow scalar as necessary */
1272 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1455 svptr = SvGROW (data, len + dataoffset + 1); 1273 svptr = sv_grow (data, len + dataoffset + 1);
1274 else if (SvCUR (data) < len + dataoffset)
1275 croak ("length + dataoffset outside of scalar, and cannot grow");
1456 } 1276 }
1457
1458 if (len < 0)
1459 croak ("length must not be negative");
1460 1277
1461 { 1278 {
1462 dREQ; 1279 dREQ;
1463 1280
1464 req->type = ix; 1281 req->type = ix;
1465 req->sv1 = newSVsv (fh); 1282 req->sv1 = newSVsv (fh);
1466 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1283 req->int1 = fd;
1467 : IoOFP (sv_2io (fh)));
1468 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1284 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1469 req->size = len; 1285 req->size = len;
1470 req->sv2 = SvREFCNT_inc (data); 1286 req->sv2 = SvREFCNT_inc (data);
1471 req->ptr1 = (char *)svptr + dataoffset; 1287 req->ptr2 = (char *)svptr + dataoffset;
1472 req->stroffset = dataoffset; 1288 req->stroffset = dataoffset;
1473 1289
1474 if (!SvREADONLY (data)) 1290 if (!SvREADONLY (data))
1475 { 1291 {
1476 SvREADONLY_on (data); 1292 SvREADONLY_on (data);
… …
1480 REQ_SEND; 1296 REQ_SEND;
1481 } 1297 }
1482} 1298}
1483 1299
1484void 1300void
1485aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1301aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1486 PROTOTYPE: $$;$ 1302 ALIAS:
1303 aio_ioctl = EIO_IOCTL
1304 aio_fcntl = EIO_FCNTL
1487 PPCODE: 1305 PPCODE:
1488{ 1306{
1489 SV *data; 1307 int fd = s_fileno_croak (fh, 0);
1490 dREQ; 1308 char *svptr;
1491 1309
1492 data = newSV (NAME_MAX); 1310 if (SvPOK (arg) || !SvNIOK (arg))
1493 SvPOK_on (data);
1494
1495 req->type = REQ_READLINK;
1496 req->sv1 = newSVsv (path);
1497 req->ptr2 = SvPVbyte_nolen (req->sv1);
1498 req->sv2 = data;
1499 req->ptr1 = SvPVbyte_nolen (data);
1500
1501 REQ_SEND;
1502}
1503
1504void
1505aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1506 PROTOTYPE: $$$$;$
1507 PPCODE:
1508{
1509 dREQ;
1510
1511 req->type = REQ_SENDFILE;
1512 req->sv1 = newSVsv (out_fh);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1514 req->sv2 = newSVsv (in_fh);
1515 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1516 req->offs = SvVAL64 (in_offset);
1517 req->size = length;
1518
1519 REQ_SEND;
1520}
1521
1522void
1523aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1524 PROTOTYPE: $$$;$
1525 PPCODE:
1526{
1527 dREQ;
1528
1529 req->type = REQ_READAHEAD;
1530 req->sv1 = newSVsv (fh);
1531 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1532 req->offs = SvVAL64 (offset);
1533 req->size = length;
1534
1535 REQ_SEND;
1536}
1537
1538void
1539aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1540 ALIAS:
1541 aio_stat = REQ_STAT
1542 aio_lstat = REQ_LSTAT
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req->ptr2 = malloc (sizeof (Stat_t));
1548 if (!req->ptr2)
1549 { 1311 {
1550 req_destroy (req); 1312 STRLEN svlen;
1551 croak ("out of memory during aio_stat statdata allocation"); 1313 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1552 } 1314#ifdef IOCPARM_LEN
1315 STRLEN need = IOCPARM_LEN (request);
1316#else
1317 STRLEN need = 256;
1318#endif
1553 1319
1554 req->flags |= FLAG_PTR2_FREE; 1320 if (svlen < need)
1555 req->sv1 = newSVsv (fh_or_path); 1321 svptr = SvGROW (arg, need + 1);
1556
1557 if (SvPOK (fh_or_path))
1558 {
1559 req->type = ix;
1560 req->ptr1 = SvPVbyte_nolen (req->sv1);
1561 } 1322 }
1562 else 1323 else
1324 svptr = (char *)SvIV (arg);
1325
1563 { 1326 {
1327 dREQ;
1328
1564 req->type = REQ_FSTAT; 1329 req->type = ix;
1565 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1330 req->sv1 = newSVsv (fh);
1331 req->int1 = fd;
1332 req->int2 = (long)request;
1333 req->sv2 = SvREFCNT_inc (arg);
1334 req->ptr2 = svptr;
1335
1336 REQ_SEND;
1566 } 1337 }
1338}
1339
1340void
1341aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1342 ALIAS:
1343 aio_readlink = EIO_READLINK
1344 aio_realpath = EIO_REALPATH
1345 PPCODE:
1346{
1347 dREQ;
1348
1349 req->type = ix;
1350 req_set_path1 (req, pathname);
1567 1351
1568 REQ_SEND; 1352 REQ_SEND;
1569} 1353}
1570 1354
1571void 1355void
1356aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1357 PPCODE:
1358{
1359 int ifd = s_fileno_croak (in_fh , 0);
1360 int ofd = s_fileno_croak (out_fh, 1);
1361 dREQ;
1362
1363 req->type = EIO_SENDFILE;
1364 req->sv1 = newSVsv (out_fh);
1365 req->int1 = ofd;
1366 req->sv2 = newSVsv (in_fh);
1367 req->int2 = ifd;
1368 req->offs = in_offset;
1369 req->size = length;
1370
1371 REQ_SEND;
1372}
1373
1374void
1375aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1376 PPCODE:
1377{
1378 int fd = s_fileno_croak (fh, 0);
1379 dREQ;
1380
1381 req->type = EIO_READAHEAD;
1382 req->sv1 = newSVsv (fh);
1383 req->int1 = fd;
1384 req->offs = offset;
1385 req->size = length;
1386
1387 REQ_SEND;
1388}
1389
1390void
1391aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1392 ALIAS:
1393 aio_stat = EIO_STAT
1394 aio_lstat = EIO_LSTAT
1395 aio_statvfs = EIO_STATVFS
1396 PPCODE:
1397{
1398 dREQ;
1399
1400 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1401
1402 REQ_SEND;
1403}
1404
1405UV
1406major (UV dev)
1407 ALIAS:
1408 minor = 1
1409 CODE:
1410 RETVAL = ix ? major (dev) : minor (dev);
1411 OUTPUT:
1412 RETVAL
1413
1414UV
1415makedev (UV maj, UV min)
1416 CODE:
1417 RETVAL = makedev (maj, min);
1418 OUTPUT:
1419 RETVAL
1420
1421void
1572aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1422aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1573 PPCODE: 1423 PPCODE:
1574{ 1424{
1575 dREQ; 1425 dREQ;
1576 1426
1577 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1427 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1578 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1428 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1579 req->sv1 = newSVsv (fh_or_path); 1429 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1580
1581 if (SvPOK (fh_or_path))
1582 {
1583 req->type = REQ_UTIME;
1584 req->ptr1 = SvPVbyte_nolen (req->sv1);
1585 }
1586 else
1587 {
1588 req->type = REQ_FUTIME;
1589 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1590 }
1591 1430
1592 REQ_SEND; 1431 REQ_SEND;
1593} 1432}
1594 1433
1595void 1434void
1596aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1435aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1597 PPCODE: 1436 PPCODE:
1598{ 1437{
1599 dREQ; 1438 dREQ;
1600 1439
1601 req->mode = mode; 1440 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1602 req->sv1 = newSVsv (fh_or_path); 1441 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1603
1604 if (SvPOK (fh_or_path))
1605 {
1606 req->type = REQ_CHMOD;
1607 req->ptr1 = SvPVbyte_nolen (req->sv1);
1608 }
1609 else
1610 {
1611 req->type = REQ_FCHMOD;
1612 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1613 }
1614 1442
1615 REQ_SEND; 1443 REQ_SEND;
1616} 1444}
1617 1445
1618void 1446void
1447aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1448 PPCODE:
1449{
1450 dREQ;
1451
1452 req->int2 = mode;
1453 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1454
1455 REQ_SEND;
1456}
1457
1458void
1619aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1459aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1620 PPCODE: 1460 PPCODE:
1621{ 1461{
1622 dREQ; 1462 dREQ;
1623 1463
1624 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1464 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1625 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1465 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1626 req->sv1 = newSVsv (fh_or_path); 1466 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1627
1628 if (SvPOK (fh_or_path))
1629 {
1630 req->type = REQ_CHOWN;
1631 req->ptr1 = SvPVbyte_nolen (req->sv1);
1632 }
1633 else
1634 {
1635 req->type = REQ_FCHOWN;
1636 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1637 }
1638 1467
1639 REQ_SEND; 1468 REQ_SEND;
1640} 1469}
1641 1470
1642void 1471void
1472aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1473 PPCODE:
1474{
1475 dREQ;
1476
1477 req->type = EIO_READDIR;
1478 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1479
1480 if (flags & EIO_READDIR_DENTS)
1481 req->int1 |= EIO_READDIR_CUSTOM2;
1482
1483 req_set_path1 (req, pathname);
1484
1485 REQ_SEND;
1486}
1487
1488void
1489aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1490 PPCODE:
1491{
1492 dREQ;
1493
1494 req->type = EIO_MKDIR;
1495 req->int2 = mode;
1496 req_set_path1 (req, pathname);
1497
1498 REQ_SEND;
1499}
1500
1501void
1643aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1502aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1644 ALIAS: 1503 ALIAS:
1645 aio_unlink = REQ_UNLINK 1504 aio_unlink = EIO_UNLINK
1646 aio_rmdir = REQ_RMDIR 1505 aio_rmdir = EIO_RMDIR
1647 aio_readdir = REQ_READDIR 1506 aio_readdir = EIO_READDIR
1648 PPCODE: 1507 PPCODE:
1649{ 1508{
1650 dREQ; 1509 dREQ;
1651 1510
1652 req->type = ix; 1511 req->type = ix;
1653 req->sv1 = newSVsv (pathname); 1512 req_set_path1 (req, pathname);
1654 req->ptr1 = SvPVbyte_nolen (req->sv1);
1655 1513
1656 REQ_SEND; 1514 REQ_SEND;
1657} 1515}
1658 1516
1659void 1517void
1660aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1518aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1519 ALIAS:
1520 aio_link = EIO_LINK
1521 aio_symlink = EIO_SYMLINK
1522 aio_rename = EIO_RENAME
1661 PPCODE: 1523 PPCODE:
1662{ 1524{
1663 dREQ; 1525 eio_wd wd2 = 0;
1664
1665 req->type = REQ_MKDIR;
1666 req->sv1 = newSVsv (pathname);
1667 req->ptr1 = SvPVbyte_nolen (req->sv1);
1668 req->mode = mode;
1669
1670 REQ_SEND;
1671}
1672
1673void
1674aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1675 ALIAS:
1676 aio_link = REQ_LINK
1677 aio_symlink = REQ_SYMLINK
1678 aio_rename = REQ_RENAME
1679 PPCODE:
1680{
1681 dREQ; 1526 dREQ;
1682 1527
1683 req->type = ix; 1528 req->type = ix;
1684 req->sv2 = newSVsv (oldpath); 1529 req_set_path1 (req, oldpath);
1685 req->ptr2 = SvPVbyte_nolen (req->sv2); 1530 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1686 req->sv1 = newSVsv (newpath); 1531 req->int3 = (long)wd2;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 1532
1689 REQ_SEND; 1533 REQ_SEND;
1690} 1534}
1691 1535
1692void 1536void
1693aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1537aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1694 PPCODE: 1538 PPCODE:
1695{ 1539{
1696 dREQ; 1540 dREQ;
1697 1541
1698 req->type = REQ_MKNOD; 1542 req->type = EIO_MKNOD;
1699 req->sv1 = newSVsv (pathname);
1700 req->ptr1 = SvPVbyte_nolen (req->sv1);
1701 req->mode = (mode_t)mode; 1543 req->int2 = (mode_t)mode;
1702 req->offs = dev; 1544 req->offs = dev;
1545 req_set_path1 (req, pathname);
1703 1546
1704 REQ_SEND; 1547 REQ_SEND;
1705} 1548}
1706 1549
1707void 1550void
1551aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1552 ALIAS:
1553 aio_mtouch = EIO_MTOUCH
1554 aio_msync = EIO_MSYNC
1555 PPCODE:
1556{
1557 STRLEN svlen;
1558 char *svptr = SvPVbyte (data, svlen);
1559 UV len = SvUV (length);
1560
1561 if (offset < 0)
1562 offset += svlen;
1563
1564 if (offset < 0 || offset > svlen)
1565 croak ("offset outside of scalar");
1566
1567 if (!SvOK (length) || len + offset > svlen)
1568 len = svlen - offset;
1569
1570 {
1571 dREQ;
1572
1573 req->type = ix;
1574 req->sv2 = SvREFCNT_inc (data);
1575 req->ptr2 = (char *)svptr + offset;
1576 req->size = len;
1577 req->int1 = flags;
1578
1579 REQ_SEND;
1580 }
1581}
1582
1583void
1584aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1585 PPCODE:
1586{
1587 STRLEN svlen;
1588 char *svptr = SvPVbyte (data, svlen);
1589 UV len = SvUV (length);
1590
1591 if (offset < 0)
1592 offset += svlen;
1593
1594 if (offset < 0 || offset > svlen)
1595 croak ("offset outside of scalar");
1596
1597 if (!SvOK (length) || len + offset > svlen)
1598 len = svlen - offset;
1599
1600 {
1601 dREQ;
1602
1603 req->type = EIO_MLOCK;
1604 req->sv2 = SvREFCNT_inc (data);
1605 req->ptr2 = (char *)svptr + offset;
1606 req->size = len;
1607
1608 REQ_SEND;
1609 }
1610}
1611
1612void
1613aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1614 PPCODE:
1615{
1616 dREQ;
1617
1618 req->type = EIO_MLOCKALL;
1619 req->int1 = flags;
1620
1621 REQ_SEND;
1622}
1623
1624void
1625aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1626 PPCODE:
1627{
1628 int fd = s_fileno_croak (fh, 0);
1629 dREQ;
1630
1631 req->type = EIO_CUSTOM;
1632 req->sv1 = newSVsv (fh);
1633 req->int1 = fd;
1634
1635 req->feed = fiemap;
1636#if HAVE_FIEMAP
1637 /* keep our fingers crossed that the next two types are 64 bit */
1638 req->offs = start;
1639 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1640 req->int2 = flags;
1641 req->int3 = SvOK (count) ? SvIV (count) : -1;
1642#endif
1643
1644 REQ_SEND;
1645}
1646
1647void
1708aio_busy (double delay, SV *callback=&PL_sv_undef) 1648aio_busy (double delay, SV *callback = &PL_sv_undef)
1709 PPCODE: 1649 PPCODE:
1710{ 1650{
1711 dREQ; 1651 dREQ;
1712 1652
1713 req->type = REQ_BUSY; 1653 req->type = EIO_BUSY;
1714 req->nv1 = delay < 0. ? 0. : delay; 1654 req->nv1 = delay < 0. ? 0. : delay;
1715 1655
1716 REQ_SEND; 1656 REQ_SEND;
1717} 1657}
1718 1658
1719void 1659void
1720aio_group (SV *callback=&PL_sv_undef) 1660aio_group (SV *callback = &PL_sv_undef)
1721 PROTOTYPE: ;$
1722 PPCODE: 1661 PPCODE:
1723{ 1662{
1724 dREQ; 1663 dREQ;
1725 1664
1726 req->type = REQ_GROUP; 1665 req->type = EIO_GROUP;
1727 1666
1667 PUTBACK;
1728 req_send (req); 1668 req_submit (req);
1669 SPAGAIN;
1670
1729 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1671 XPUSHs (req_sv (req, aio_grp_stash));
1730} 1672}
1731 1673
1732void 1674void
1733aio_nop (SV *callback=&PL_sv_undef) 1675aio_nop (SV *callback = &PL_sv_undef)
1676 ALIAS:
1677 aio_nop = EIO_NOP
1678 aio_sync = EIO_SYNC
1734 PPCODE: 1679 PPCODE:
1735{ 1680{
1736 dREQ; 1681 dREQ;
1737 1682
1738 req->type = REQ_NOP; 1683 req->type = ix;
1739 1684
1740 REQ_SEND; 1685 REQ_SEND;
1741} 1686}
1742 1687
1743int 1688int
1744aioreq_pri (int pri = 0) 1689aioreq_pri (int pri = NO_INIT)
1745 PROTOTYPE: ;$
1746 CODE: 1690 CODE:
1747 RETVAL = next_pri - PRI_BIAS; 1691 RETVAL = next_pri;
1748 if (items > 0) 1692 if (items > 0)
1749 { 1693 {
1750 if (pri < PRI_MIN) pri = PRI_MIN; 1694 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1751 if (pri > PRI_MAX) pri = PRI_MAX; 1695 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1752 next_pri = pri + PRI_BIAS; 1696 next_pri = pri;
1753 } 1697 }
1754 OUTPUT: 1698 OUTPUT:
1755 RETVAL 1699 RETVAL
1756 1700
1757void 1701void
1758aioreq_nice (int nice = 0) 1702aioreq_nice (int nice = 0)
1759 CODE: 1703 CODE:
1760 nice = next_pri - nice; 1704 nice = next_pri - nice;
1761 if (nice < PRI_MIN) nice = PRI_MIN; 1705 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1762 if (nice > PRI_MAX) nice = PRI_MAX; 1706 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1763 next_pri = nice + PRI_BIAS; 1707 next_pri = nice;
1764 1708
1765void 1709void
1766flush () 1710flush ()
1767 PROTOTYPE:
1768 CODE: 1711 CODE:
1769 while (nreqs) 1712 while (eio_nreqs ())
1770 { 1713 {
1771 poll_wait (); 1714 poll_wait ();
1772 poll_cb (); 1715 poll_cb ();
1773 } 1716 }
1774 1717
1775int 1718int
1776poll() 1719poll ()
1777 PROTOTYPE:
1778 CODE: 1720 CODE:
1779 poll_wait (); 1721 poll_wait ();
1780 RETVAL = poll_cb (); 1722 RETVAL = poll_cb ();
1781 OUTPUT: 1723 OUTPUT:
1782 RETVAL 1724 RETVAL
1783 1725
1784int 1726int
1785poll_fileno() 1727poll_fileno ()
1786 PROTOTYPE:
1787 CODE: 1728 CODE:
1788 RETVAL = respipe [0]; 1729 RETVAL = s_epipe_fd (&respipe);
1789 OUTPUT: 1730 OUTPUT:
1790 RETVAL 1731 RETVAL
1791 1732
1792int 1733int
1793poll_cb(...) 1734poll_cb (...)
1794 PROTOTYPE: 1735 PROTOTYPE:
1795 CODE: 1736 CODE:
1796 RETVAL = poll_cb (); 1737 RETVAL = poll_cb ();
1797 OUTPUT: 1738 OUTPUT:
1798 RETVAL 1739 RETVAL
1799 1740
1800void 1741void
1801poll_wait() 1742poll_wait ()
1802 PROTOTYPE:
1803 CODE: 1743 CODE:
1804 poll_wait (); 1744 poll_wait ();
1805 1745
1806void
1807setsig (int signum = SIGIO)
1808 PROTOTYPE: ;$
1809 CODE:
1810{
1811 if (block_sig_level)
1812 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1813
1814 LOCK (reslock);
1815 main_tid = pthread_self ();
1816 main_sig = signum;
1817 UNLOCK (reslock);
1818
1819 if (main_sig && npending)
1820 pthread_kill (main_tid, main_sig);
1821}
1822
1823void
1824aio_block (SV *cb)
1825 PROTOTYPE: &
1826 PPCODE:
1827{
1828 int count;
1829
1830 block_sig ();
1831 PUSHMARK (SP);
1832 PUTBACK;
1833 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1834 SPAGAIN;
1835 unblock_sig ();
1836
1837 if (SvTRUE (ERRSV))
1838 croak (0);
1839
1840 XSRETURN (count);
1841}
1842
1843int 1746int
1844nreqs() 1747nreqs ()
1845 PROTOTYPE:
1846 CODE: 1748 CODE:
1847 RETVAL = nreqs; 1749 RETVAL = eio_nreqs ();
1848 OUTPUT: 1750 OUTPUT:
1849 RETVAL 1751 RETVAL
1850 1752
1851int 1753int
1852nready() 1754nready ()
1853 PROTOTYPE:
1854 CODE: 1755 CODE:
1855 RETVAL = get_nready (); 1756 RETVAL = eio_nready ();
1856 OUTPUT: 1757 OUTPUT:
1857 RETVAL 1758 RETVAL
1858 1759
1859int 1760int
1860npending() 1761npending ()
1861 PROTOTYPE:
1862 CODE: 1762 CODE:
1863 RETVAL = get_npending (); 1763 RETVAL = eio_npending ();
1864 OUTPUT: 1764 OUTPUT:
1865 RETVAL 1765 RETVAL
1866 1766
1867int 1767int
1868nthreads() 1768nthreads ()
1869 PROTOTYPE:
1870 CODE: 1769 CODE:
1871 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1770 RETVAL = eio_nthreads ();
1872 RETVAL = started;
1873 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1874 OUTPUT: 1771 OUTPUT:
1875 RETVAL 1772 RETVAL
1876 1773
1774int
1775fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1776 CODE:
1777 RETVAL = posix_fadvise (fh, offset, length, advice);
1778 OUTPUT:
1779 RETVAL
1780
1781IV
1782sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1783 CODE:
1784 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1785 OUTPUT:
1786 RETVAL
1787
1788void
1789mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1790 PPCODE:
1791 sv_unmagic (scalar, MMAP_MAGIC);
1792{
1793 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1794 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1795 if (addr == (void *)-1)
1796 XSRETURN_NO;
1797
1798 sv_force_normal (scalar);
1799
1800 /* we store the length in mg_obj, as namlen is I32 :/ */
1801 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1802 ->mg_obj = (SV *)length;
1803
1804 SvUPGRADE (scalar, SVt_PV); /* nop... */
1805
1806 if (!(prot & PROT_WRITE))
1807 SvREADONLY_on (scalar);
1808
1809 if (SvLEN (scalar))
1810 Safefree (SvPVX (scalar));
1811
1812 SvPVX (scalar) = (char *)addr;
1813 SvCUR_set (scalar, length);
1814 SvLEN_set (scalar, 0);
1815 SvPOK_only (scalar);
1816
1817 XSRETURN_YES;
1818}
1819
1820void
1821munmap (SV *scalar)
1822 CODE:
1823 sv_unmagic (scalar, MMAP_MAGIC);
1824
1825int
1826madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1827 ALIAS:
1828 mprotect = 1
1829 CODE:
1830{
1831 STRLEN svlen;
1832 void *addr = SvPVbyte (scalar, svlen);
1833 STRLEN len = SvUV (length);
1834
1835 if (offset < 0)
1836 offset += svlen;
1837
1838 if (offset < 0 || offset > svlen)
1839 croak ("offset outside of scalar");
1840
1841 if (!SvOK (length) || len + offset > svlen)
1842 len = svlen - offset;
1843
1844 addr = (void *)(((intptr_t)addr) + offset);
1845 eio_page_align (&addr, &len);
1846
1847 switch (ix)
1848 {
1849 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1850 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1851 }
1852}
1853 OUTPUT:
1854 RETVAL
1855
1856int
1857munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1858 CODE:
1859{
1860 STRLEN svlen;
1861 void *addr = SvPVbyte (scalar, svlen);
1862 size_t len = SvUV (length);
1863
1864 if (offset < 0)
1865 offset += svlen;
1866
1867 if (offset < 0 || offset > svlen)
1868 croak ("offset outside of scalar");
1869
1870 if (!SvOK (length) || len + offset > svlen)
1871 len = svlen - offset;
1872
1873 addr = (void *)(((intptr_t)addr) + offset);
1874 eio_page_align (&addr, &len);
1875#if _POSIX_MEMLOCK_RANGE
1876 RETVAL = munlock (addr, len);
1877#else
1878 RETVAL = EIO_ENOSYS ();
1879#endif
1880}
1881 OUTPUT:
1882 RETVAL
1883
1884int
1885munlockall ()
1886 CODE:
1887#if _POSIX_MEMLOCK
1888 munlockall ();
1889#else
1890 RETVAL = EIO_ENOSYS ();
1891#endif
1892 OUTPUT:
1893 RETVAL
1894
1895int
1896splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1897 CODE:
1898{
1899#if HAVE_LINUX_SPLICE
1900 loff_t off_in_, off_out_;
1901 RETVAL = splice (
1902 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1903 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1904 length, flags
1905 );
1906#else
1907 RETVAL = EIO_ENOSYS ();
1908#endif
1909}
1910 OUTPUT:
1911 RETVAL
1912
1913int
1914tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1915 CODE:
1916#if HAVE_LINUX_SPLICE
1917 RETVAL = tee (rfh, wfh, length, flags);
1918#else
1919 RETVAL = EIO_ENOSYS ();
1920#endif
1921 OUTPUT:
1922 RETVAL
1923
1924int
1925pipesize (aio_rfd rfh, int new_size = -1)
1926 PROTOTYPE: $;$
1927 CODE:
1928#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1929 if (new_size >= 0)
1930 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1931 else
1932 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1933#else
1934 errno = ENOSYS;
1935 RETVAL = -1;
1936#endif
1937 OUTPUT:
1938 RETVAL
1939
1940void
1941pipe2 (int flags = 0)
1942 PROTOTYPE: ;$
1943 PPCODE:
1944{
1945 int fd[2];
1946 int res;
1947
1948 if (flags)
1949#if HAVE_PIPE2
1950 res = pipe2 (fd, flags);
1951#else
1952 res = (errno = ENOSYS, -1);
1953#endif
1954 else
1955 res = pipe (fd);
1956
1957 if (!res)
1958 {
1959 EXTEND (SP, 2);
1960 PUSHs (newmortalFH (fd[0], O_RDONLY));
1961 PUSHs (newmortalFH (fd[1], O_WRONLY));
1962 }
1963}
1964
1965void _on_next_submit (SV *cb)
1966 CODE:
1967 SvREFCNT_dec (on_next_submit);
1968 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1969
1877PROTOTYPES: DISABLE 1970PROTOTYPES: DISABLE
1971
1972MODULE = IO::AIO PACKAGE = IO::AIO::WD
1973
1974BOOT:
1975{
1976 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1977 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1978}
1979
1980void
1981DESTROY (SV *self)
1982 CODE:
1983{
1984 aio_wd wd = SvAIO_WD (self);
1985#if HAVE_AT
1986 {
1987 SV *callback = &PL_sv_undef;
1988 dREQ; /* clobbers next_pri :/ */
1989 next_pri = req->pri; /* restore next_pri */
1990 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1991 req->type = EIO_WD_CLOSE;
1992 req->wd = wd;
1993 REQ_SEND;
1994 }
1995#else
1996 eio_wd_close_sync (wd);
1997#endif
1998}
1878 1999
1879MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2000MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1880 2001
1881void 2002void
1882cancel (aio_req_ornot req) 2003cancel (aio_req_ornot req)
1883 CODE: 2004 CODE:
1884 req_cancel (req); 2005 eio_cancel (req);
1885 2006
1886void 2007void
1887cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2008cb (aio_req_ornot req, SV *callback = NO_INIT)
1888 CODE: 2009 PPCODE:
2010{
2011 if (GIMME_V != G_VOID)
2012 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2013
2014 if (items > 1)
2015 {
2016 SV *cb_cv = get_cb (callback);
2017
1889 SvREFCNT_dec (req->callback); 2018 SvREFCNT_dec (req->callback);
1890 req->callback = newSVsv (callback); 2019 req->callback = SvREFCNT_inc (cb_cv);
2020 }
2021}
1891 2022
1892MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2023MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1893 2024
1894void 2025void
1895add (aio_req grp, ...) 2026add (aio_req grp, ...)
1896 PPCODE: 2027 PPCODE:
1897{ 2028{
1898 int i; 2029 int i;
1899 aio_req req;
1900
1901 if (main_sig && !block_sig_level)
1902 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1903 2030
1904 if (grp->int1 == 2) 2031 if (grp->int1 == 2)
1905 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2032 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1906 2033
1907 for (i = 1; i < items; ++i ) 2034 for (i = 1; i < items; ++i )
1908 { 2035 {
2036 aio_req req;
2037
1909 if (GIMME_V != G_VOID) 2038 if (GIMME_V != G_VOID)
1910 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2039 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1911 2040
1912 req = SvAIO_REQ (ST (i)); 2041 req = SvAIO_REQ (ST (i));
1913 2042
1914 if (req) 2043 if (req)
1915 { 2044 eio_grp_add (grp, req);
1916 ++grp->size;
1917 req->grp = grp;
1918
1919 req->grp_prev = 0;
1920 req->grp_next = grp->grp_first;
1921
1922 if (grp->grp_first)
1923 grp->grp_first->grp_prev = req;
1924
1925 grp->grp_first = req;
1926 }
1927 } 2045 }
1928} 2046}
1929 2047
1930void 2048void
1931cancel_subs (aio_req_ornot req) 2049cancel_subs (aio_req_ornot req)
… …
1940 AV *av; 2058 AV *av;
1941 2059
1942 grp->errorno = errno; 2060 grp->errorno = errno;
1943 2061
1944 av = newAV (); 2062 av = newAV ();
2063 av_extend (av, items - 1);
1945 2064
1946 for (i = 1; i < items; ++i ) 2065 for (i = 1; i < items; ++i )
1947 av_push (av, newSVsv (ST (i))); 2066 av_push (av, newSVsv (ST (i)));
1948 2067
1949 SvREFCNT_dec (grp->sv1); 2068 SvREFCNT_dec (grp->sv1);
… …
1956 grp->errorno = errorno; 2075 grp->errorno = errorno;
1957 2076
1958void 2077void
1959limit (aio_req grp, int limit) 2078limit (aio_req grp, int limit)
1960 CODE: 2079 CODE:
1961 grp->int2 = limit; 2080 eio_grp_limit (grp, limit);
1962 aio_grp_feed (grp);
1963 2081
1964void 2082void
1965feed (aio_req grp, SV *callback=&PL_sv_undef) 2083feed (aio_req grp, SV *callback = &PL_sv_undef)
1966 CODE: 2084 CODE:
1967{ 2085{
1968 SvREFCNT_dec (grp->sv2); 2086 SvREFCNT_dec (grp->sv2);
1969 grp->sv2 = newSVsv (callback); 2087 grp->sv2 = newSVsv (callback);
2088 grp->feed = aio_grp_feed;
1970 2089
1971 if (grp->int2 <= 0) 2090 if (grp->int2 <= 0)
1972 grp->int2 = 2; 2091 grp->int2 = 2;
1973 2092
1974 aio_grp_feed (grp); 2093 eio_grp_limit (grp, grp->int2);
1975} 2094}
1976 2095

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