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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.92 by root, Wed Nov 8 01:59:59 2006 UTC vs.
Revision 1.245 by root, Fri Jun 23 03:23:19 2017 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# if __linux
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h> 21# include <sys/mman.h>
39# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
40# include <sys/socket.h> 86 #include <sys/time.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 SV *sv3, *sv4; \
119 STRLEN stroffset; \
120 SV *self;
121
122#define EIO_NO_WRAPPERS 1
123
124#include "libeio/config.h"
125#include "libeio/eio.h"
126
127static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp);
130#define EIO_DESTROY(req) req_destroy (req)
131
132#include "libeio/eio.c"
133
134#if !HAVE_POSIX_FADVISE
135# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
136#endif
137
138#if !HAVE_POSIX_MADVISE
139# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
140#endif
141
142#ifndef MAP_ANONYMOUS
143# ifdef MAP_ANON
144# define MAP_ANONYMOUS MAP_ANON
43# else 145# else
44# error sendfile support requested but not available 146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 147# endif
46#endif 148#endif
47 149
48/* number of seconds after which idle threads exit */ 150/* defines all sorts of constants to 0 unless they are already defined */
49#define IDLE_TIMEOUT 10 151/* also provides const_iv_ and const_niv_ macros for them */
152#include "def0.h"
50 153
51/* used for struct dirent, AIX doesn't provide it */ 154#ifndef makedev
52#ifndef NAME_MAX 155# define makedev(maj,min) (((maj) << 8) | (min))
53# define NAME_MAX 4096
54#endif
55
56#ifndef PTHREAD_STACK_MIN
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif
60
61#if __ia64
62# define STACKSIZE 65536
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
64# define STACKSIZE PTHREAD_STACK_MIN
65#else
66# define STACKSIZE 16384
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
79#endif 159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
80 163
81/* buffer size for various temporary buffers */ 164#if PAGESIZE <= 0
82#define AIO_BUFSIZE 65536 165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
83 167
84#define dBUF \ 168/*****************************************************************************/
85 char *aio_buf; \ 169
86 LOCK (wrklock); \ 170static void
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 171fiemap (eio_req *req)
88 UNLOCK (wrklock); \ 172{
89 if (!aio_buf) \ 173 req->result = -1;
174
175#if HAVE_FIEMAP
176 /* assume some c99 */
177 struct fiemap *fiemap = 0;
178 size_t end_offset;
179 int count = req->int3;
180
181 req->flags |= EIO_FLAG_PTR1_FREE;
182
183 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
184 /* increase in 3.5kb steps */
185 if (count < 0)
186 count = 8;
187
188 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
189 errno = ENOMEM;
190 if (!fiemap)
90 return -1; 191 return;
91 192
92typedef SV SV8; /* byte-sv, used for argument-checking */ 193 req->ptr1 = fiemap;
93 194
94enum { 195 fiemap->fm_start = req->offs;
95 REQ_QUIT, 196 fiemap->fm_length = req->size;
96 REQ_OPEN, REQ_CLOSE, 197 fiemap->fm_flags = req->int2;
97 REQ_READ, REQ_WRITE, REQ_READAHEAD, 198 fiemap->fm_extent_count = count;
98 REQ_SENDFILE,
99 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
100 REQ_FSYNC, REQ_FDATASYNC,
101 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
102 REQ_MKNOD, REQ_READDIR,
103 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
104 REQ_GROUP, REQ_NOP,
105 REQ_BUSY,
106};
107 199
108#define AIO_REQ_KLASS "IO::AIO::REQ" 200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
109#define AIO_GRP_KLASS "IO::AIO::GRP" 201 return;
110 202
111typedef struct aio_cb 203 if (req->int3 >= 0 /* not autosizing */
112{ 204 || !fiemap->fm_mapped_extents /* no more extents */
113 struct aio_cb *volatile next; 205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
206 goto done;
114 207
115 SV *callback, *fh; 208 /* else we have to loop -
116 SV *sv1, *sv2; 209 * it would be tempting (actually I tried that first) to just query the
117 void *ptr1, *ptr2; 210 * number of extents needed, but linux often feels like not returning all
118 off_t offs; 211 * extents, without telling us it left any out. this complicates
119 size_t size; 212 * this quite a bit.
120 ssize_t result; 213 */
121 214
122 STRLEN stroffset; 215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
123 int type;
124 int int1, int2;
125 int errorno;
126 mode_t mode; /* open */
127 216
128 unsigned char flags; 217 for (;;)
129 unsigned char pri;
130
131 SV *self; /* the perl counterpart of this request, if any */
132 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
133} aio_cb;
134
135enum {
136 FLAG_CANCELLED = 0x01, /* request was cancelled */
137 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
138 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
139};
140
141typedef aio_cb *aio_req;
142typedef aio_cb *aio_req_ornot;
143
144enum {
145 PRI_MIN = -4,
146 PRI_MAX = 4,
147
148 DEFAULT_PRI = 0,
149 PRI_BIAS = -PRI_MIN,
150 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
151};
152
153#define AIO_TICKS ((1000000 + 1023) >> 10)
154
155static unsigned int max_poll_time = 0;
156static unsigned int max_poll_reqs = 0;
157
158/* calculcate time difference in ~1/AIO_TICKS of a second */
159static int tvdiff (struct timeval *tv1, struct timeval *tv2)
160{
161 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
162 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
163}
164
165static int next_pri = DEFAULT_PRI + PRI_BIAS;
166
167static unsigned int started, idle, wanted;
168
169#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
170# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
171#else
172# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
173#endif
174
175#define LOCK(mutex) pthread_mutex_lock (&(mutex))
176#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
177
178/* worker threads management */
179static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
180
181typedef struct worker {
182 /* locked by wrklock */
183 struct worker *prev, *next;
184
185 pthread_t tid;
186
187 /* locked by reslock, reqlock or wrklock */
188 aio_req req; /* currently processed request */
189 void *dbuf;
190 DIR *dirp;
191} worker;
192
193static worker wrk_first = { &wrk_first, &wrk_first, 0 };
194
195static void worker_clear (worker *wrk)
196{
197 if (wrk->dirp)
198 { 218 {
199 closedir (wrk->dirp); 219 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
200 wrk->dirp = 0; 220 char scratch[3072];
201 } 221 struct fiemap *incmap = (struct fiemap *)scratch;
202 222
203 if (wrk->dbuf) 223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
204 { 224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
205 free (wrk->dbuf); 225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
206 wrk->dbuf = 0; 226 incmap->fm_flags = fiemap->fm_flags;
207 } 227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
208}
209 228
210static void worker_free (worker *wrk) 229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
211{
212 wrk->next->prev = wrk->prev;
213 wrk->prev->next = wrk->next;
214
215 free (wrk);
216}
217
218static volatile unsigned int nreqs, nready, npending;
219static volatile unsigned int max_idle = 4;
220static volatile unsigned int max_outstanding = 0xffffffff;
221static int respipe [2];
222
223static pthread_mutex_t reslock = AIO_MUTEX_INIT;
224static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
225static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
226
227#if WORDACCESS_UNSAFE
228
229static unsigned int get_nready ()
230{
231 unsigned int retval;
232
233 LOCK (reqlock);
234 retval = nready;
235 UNLOCK (reqlock);
236
237 return retval;
238}
239
240static unsigned int get_npending ()
241{
242 unsigned int retval;
243
244 LOCK (reslock);
245 retval = npending;
246 UNLOCK (reslock);
247
248 return retval;
249}
250
251static unsigned int get_nthreads ()
252{
253 unsigned int retval;
254
255 LOCK (wrklock);
256 retval = started;
257 UNLOCK (wrklock);
258
259 return retval;
260}
261
262#else
263
264# define get_nready() nready
265# define get_npending() npending
266# define get_nthreads() started
267
268#endif
269
270/*
271 * a somewhat faster data structure might be nice, but
272 * with 8 priorities this actually needs <20 insns
273 * per shift, the most expensive operation.
274 */
275typedef struct {
276 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
277 int size;
278} reqq;
279
280static reqq req_queue;
281static reqq res_queue;
282
283int reqq_push (reqq *q, aio_req req)
284{
285 int pri = req->pri;
286 req->next = 0;
287
288 if (q->qe[pri])
289 {
290 q->qe[pri]->next = req;
291 q->qe[pri] = req;
292 }
293 else
294 q->qe[pri] = q->qs[pri] = req;
295
296 return q->size++;
297}
298
299aio_req reqq_shift (reqq *q)
300{
301 int pri;
302
303 if (!q->size)
304 return 0; 230 return;
305 231
306 --q->size; 232 if (!incmap->fm_mapped_extents)
233 goto done;
307 234
308 for (pri = NUM_PRI; pri--; ) 235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
309 { 236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
310 aio_req req = q->qs[pri]; 237 errno = ENOMEM;
311
312 if (req) 238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
313 { 244 {
314 if (!(q->qs[pri] = req->next)) 245 struct fiemap_extent *e = incmap->fm_extents + count;
315 q->qe[pri] = 0;
316 246
317 return req; 247 if (e->fe_logical + e->fe_length >= end_offset)
248 goto done;
249
250 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
251
252 if (e->fe_flags & FIEMAP_EXTENT_LAST)
253 goto done;
254
318 } 255 }
319 } 256 }
320 257
321 abort (); 258done:
322} 259 req->result = 0;
323 260
324static int poll_cb (); 261#else
325static void req_invoke (aio_req req); 262 errno = ENOSYS;
263#endif
264}
265
266/*****************************************************************************/
267
268enum {
269 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
270};
271
272typedef eio_req *aio_req;
273typedef eio_req *aio_req_ornot;
274typedef eio_wd aio_wd;
275
276static SV *on_next_submit;
277static int next_pri = EIO_PRI_DEFAULT;
278static int max_outstanding;
279
280static s_epipe respipe;
281
326static void req_free (aio_req req); 282static void req_destroy (aio_req req);
327static void req_cancel (aio_req req); 283static void req_cancel (aio_req req);
328 284
285static void
286want_poll (void)
287{
288 /* write a dummy byte to the pipe so fh becomes ready */
289 s_epipe_signal (&respipe);
290}
291
292static void
293done_poll (void)
294{
295 /* read any signals sent by the worker threads */
296 s_epipe_drain (&respipe);
297}
298
329/* must be called at most once */ 299/* must be called at most once */
330static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
331{ 302{
332 if (!req->self) 303 if (!req->self)
333 { 304 {
334 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
335 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
336 } 307 }
337 308
338 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
339} 310}
340 311
341static aio_req SvAIO_REQ (SV *sv) 312static SV *
313newSVaio_wd (aio_wd wd)
314{
315 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
316}
317
318static aio_req
319SvAIO_REQ (SV *sv)
342{ 320{
343 MAGIC *mg; 321 MAGIC *mg;
344 322
345 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 323 if (!SvROK (sv)
324 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
325 || (SvSTASH (SvRV (sv)) != aio_grp_stash
326 && SvSTASH (SvRV (sv)) != aio_req_stash
327 && !sv_derived_from (sv, "IO::AIO::REQ")))
346 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
347 329
348 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
349 331
350 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
351} 333}
352 334
335static aio_wd
336SvAIO_WD (SV *sv)
337{
338 if (!SvROK (sv)
339 || SvTYPE (SvRV (sv)) != SVt_PVMG
340 || SvSTASH (SvRV (sv)) != aio_wd_stash)
341 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
342
343 return (aio_wd)(long)SvIVX (SvRV (sv));
344}
345
346static SV *
347newmortalFH (int fd, int flags)
348{
349 if (fd < 0)
350 return &PL_sv_undef;
351
352 GV *gv = (GV *)sv_newmortal ();
353 char sym[64];
354 int symlen;
355
356 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
357 gv_init (gv, aio_stash, sym, symlen, 0);
358
359 symlen = snprintf (
360 sym,
361 sizeof (sym),
362 "%s&=%d",
363 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
364 fd
365 );
366
367 return do_open (gv, sym, symlen, 0, 0, 0, 0)
368 ? (SV *)gv : &PL_sv_undef;
369}
370
371static void
353static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
354{ 373{
355 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 374 if (grp->sv2 && SvOK (grp->sv2))
356 { 375 {
357 int old_len = grp->size;
358
359 if (grp->sv2 && SvOK (grp->sv2))
360 {
361 dSP; 376 dSP;
362 377
363 ENTER; 378 ENTER;
364 SAVETMPS; 379 SAVETMPS;
365 PUSHMARK (SP); 380 PUSHMARK (SP);
366 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 381 XPUSHs (req_sv (grp, aio_grp_stash));
367 PUTBACK; 382 PUTBACK;
368 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
369 SPAGAIN; 384 SPAGAIN;
370 FREETMPS; 385 FREETMPS;
371 LEAVE; 386 LEAVE;
372 }
373
374 /* stop if no progress has been made */
375 if (old_len == grp->size)
376 {
377 SvREFCNT_dec (grp->sv2);
378 grp->sv2 = 0;
379 break;
380 }
381 } 387 }
382} 388}
383 389
384static void aio_grp_dec (aio_req grp) 390static void
391req_submit (eio_req *req)
385{ 392{
386 --grp->size; 393 eio_submit (req);
387 394
388 /* call feeder, if applicable */ 395 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 396 {
394 req_invoke (grp); 397 dSP;
395 req_free (grp); 398 SV *cb = sv_2mortal (on_next_submit);
399
400 on_next_submit = 0;
401
402 PUSHMARK (SP);
403 PUTBACK;
404 call_sv (cb, G_DISCARD | G_EVAL);
396 } 405 }
397} 406}
398 407
408static int
399static void req_invoke (aio_req req) 409req_invoke (eio_req *req)
400{ 410{
401 dSP;
402
403 if (req->flags & FLAG_SV1_RO_OFF) 411 if (req->flags & FLAG_SV2_RO_OFF)
404 SvREADONLY_off (req->sv1); 412 SvREADONLY_off (req->sv2);
405 413
406 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 414 if (!EIO_CANCELLED (req) && req->callback)
407 { 415 {
416 dSP;
417 static SV *sv_result_cache; /* caches the result integer SV */
418 SV *sv_result;
419
408 ENTER; 420 ENTER;
409 SAVETMPS; 421 SAVETMPS;
410 PUSHMARK (SP); 422 PUSHMARK (SP);
411 EXTEND (SP, 1); 423 EXTEND (SP, 1);
412 424
425 /* do not recreate the result IV from scratch each time */
426 if (expect_true (sv_result_cache))
427 {
428 sv_result = sv_result_cache; sv_result_cache = 0;
429 SvIV_set (sv_result, req->result);
430 SvIOK_only (sv_result);
431 }
432 else
433 {
434 sv_result = newSViv (req->result);
435 SvREADONLY_on (sv_result);
436 }
437
413 switch (req->type) 438 switch (req->type)
414 { 439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
415 case REQ_READDIR: 444 case EIO_READDIR:
416 { 445 {
417 SV *rv = &PL_sv_undef; 446 SV *rv = &PL_sv_undef;
418 447
419 if (req->result >= 0) 448 if (req->result >= 0)
420 { 449 {
421 int i; 450 int i;
422 char *buf = req->ptr2; 451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
423 AV *av = newAV (); 453 AV *av = newAV ();
424 454
425 av_extend (av, req->result - 1); 455 av_extend (av, req->result - 1);
426 456
427 for (i = 0; i < req->result; ++i) 457 for (i = 0; i < req->result; ++i)
428 { 458 {
429 SV *sv = newSVpv (buf, 0); 459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
430 462
463 if (req->int1 & EIO_READDIR_CUSTOM2)
464 {
465 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
466 AV *avent = newAV ();
467
468 av_extend (avent, 2);
469
470 if (!sv_type [ent->type])
471 {
472 sv_type [ent->type] = newSViv (ent->type);
473 SvREADONLY_on (sv_type [ent->type]);
474 }
475
476 av_store (avent, 0, namesv);
477 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
478 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
479
480 av_store (av, i, newRV_noinc ((SV *)avent));
481 }
482 else
431 av_store (av, i, sv); 483 av_store (av, i, namesv);
484
485 ++ent;
486 }
487 else
488 {
489 SV *name = newSVpv (names, 0);
490 av_store (av, i, name);
432 buf += SvCUR (sv) + 1; 491 names += SvCUR (name) + 1;
492 }
433 } 493 }
434 494
435 rv = sv_2mortal (newRV_noinc ((SV *)av)); 495 rv = sv_2mortal (newRV_noinc ((SV *)av));
436 } 496 }
437 497
438 PUSHs (rv); 498 PUSHs (rv);
499
500 if (req->int1 & EIO_READDIR_CUSTOM1)
501 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
439 } 502 }
440 break; 503 break;
441 504
442 case REQ_OPEN: 505 case EIO_OPEN:
506 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
507 break;
508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
443 { 511 {
444 /* convert fd to fh */ 512 SV *rv = &PL_sv_undef;
445 SV *fh; 513
514#ifndef _WIN32
515 if (req->result >= 0)
516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
518 HV *hv = newHV ();
519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
520 * chooses to make it a struct.
521 */
522 unsigned long fsid = 0;
523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
446 524
447 PUSHs (sv_2mortal (newSViv (req->result))); 525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
448 PUTBACK;
449 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
450 SPAGAIN;
451 526
452 fh = SvREFCNT_inc (POPs); 527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
538 }
539#endif
453 540
454 PUSHMARK (SP); 541 PUSHs (rv);
455 XPUSHs (sv_2mortal (fh));
456 } 542 }
543
457 break; 544 break;
458 545
459 case REQ_GROUP: 546 case EIO_GROUP:
460 req->int1 = 2; /* mark group as finished */ 547 req->int1 = 2; /* mark group as finished */
461 548
462 if (req->sv1) 549 if (req->sv1)
463 { 550 {
464 int i; 551 int i;
… …
468 for (i = 0; i <= AvFILL (av); ++i) 555 for (i = 0; i <= AvFILL (av); ++i)
469 PUSHs (*av_fetch (av, i, 0)); 556 PUSHs (*av_fetch (av, i, 0));
470 } 557 }
471 break; 558 break;
472 559
473 case REQ_NOP: 560 case EIO_NOP:
474 case REQ_BUSY: 561 case EIO_BUSY:
475 break; 562 break;
476 563
477 case REQ_READLINK: 564 case EIO_READLINK:
565 case EIO_REALPATH:
478 if (req->result > 0) 566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
479 { 598 {
480 SvCUR_set (req->sv1, req->result); 599#if HAVE_FIEMAP
481 *SvEND (req->sv1) = 0;
482 PUSHs (req->sv1); 600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
483 } 631 }
632 else
633 PUSHs (sv_result);
484 break; 634 break;
485 635
486 case REQ_STAT: 636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
487 case REQ_LSTAT: 637 if (req->result > 0)
488 case REQ_FSTAT: 638 SvIV_set (sv_result, 0);
489 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 639 /* FALLTHROUGH */
490 PL_laststatval = req->result;
491 PL_statcache = *(Stat_t *)(req->ptr2);
492 PUSHs (sv_2mortal (newSViv (req->result)));
493 break;
494
495 case REQ_READ:
496 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0));
497 *SvEND (req->sv1) = 0;
498 PUSHs (sv_2mortal (newSViv (req->result)));
499 break;
500 640
501 default: 641 default:
502 PUSHs (sv_2mortal (newSViv (req->result))); 642 PUSHs (sv_result);
503 break; 643 break;
504 } 644 }
505 645
506 errno = req->errorno; 646 errno = req->errorno;
507 647
508 PUTBACK; 648 PUTBACK;
509 call_sv (req->callback, G_VOID | G_EVAL); 649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
510 SPAGAIN; 650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
511 656
512 FREETMPS; 657 FREETMPS;
513 LEAVE; 658 LEAVE;
659
660 PUTBACK;
514 } 661 }
515 662
516 if (req->grp) 663 return !!SvTRUE (ERRSV);
517 {
518 aio_req grp = req->grp;
519
520 /* unlink request */
521 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
522 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
523
524 if (grp->grp_first == req)
525 grp->grp_first = req->grp_next;
526
527 aio_grp_dec (grp);
528 }
529
530 if (SvTRUE (ERRSV))
531 {
532 req_free (req);
533 croak (0);
534 }
535} 664}
536 665
537static void req_free (aio_req req) 666static void
667req_destroy (aio_req req)
538{ 668{
539 if (req->self) 669 if (req->self)
540 { 670 {
541 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
542 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
543 } 673 }
544 674
545 SvREFCNT_dec (req->fh);
546 SvREFCNT_dec (req->sv1); 675 SvREFCNT_dec (req->sv1);
547 SvREFCNT_dec (req->sv2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
548 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
549 680
550 if (req->flags & FLAG_PTR2_FREE)
551 free (req->ptr2);
552
553 Safefree (req); 681 free (req);
554} 682}
555 683
684static void
556static void req_cancel_subs (aio_req grp) 685req_cancel_subs (aio_req grp)
557{ 686{
558 aio_req sub;
559
560 if (grp->type != REQ_GROUP) 687 if (grp->type != EIO_GROUP)
561 return; 688 return;
562 689
563 SvREFCNT_dec (grp->sv2); 690 SvREFCNT_dec (grp->sv2);
564 grp->sv2 = 0; 691 grp->sv2 = 0;
565 692
566 for (sub = grp->grp_first; sub; sub = sub->grp_next) 693 eio_grp_cancel (grp);
567 req_cancel (sub);
568} 694}
569 695
570static void req_cancel (aio_req req) 696static void ecb_cold
697create_respipe (void)
571{ 698{
572 req->flags |= FLAG_CANCELLED; 699 if (s_epipe_renew (&respipe))
573 700 croak ("IO::AIO: unable to initialize result pipe");
574 req_cancel_subs (req);
575} 701}
576 702
577static void *aio_proc(void *arg); 703static void
578 704poll_wait (void)
579static void start_thread (void)
580{ 705{
581 sigset_t fullsigset, oldsigset;
582 pthread_attr_t attr;
583
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 pthread_attr_init (&attr);
590 pthread_attr_setstacksize (&attr, STACKSIZE);
591 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
592#ifdef PTHREAD_SCOPE_PROCESS
593 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
594#endif
595
596 sigfillset (&fullsigset);
597
598 LOCK (wrklock);
599 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
600
601 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
602 {
603 wrk->prev = &wrk_first;
604 wrk->next = wrk_first.next;
605 wrk_first.next->prev = wrk;
606 wrk_first.next = wrk;
607 ++started;
608 }
609 else
610 free (wrk);
611
612 sigprocmask (SIG_SETMASK, &oldsigset, 0);
613 UNLOCK (wrklock);
614}
615
616static void maybe_start_thread ()
617{
618 if (get_nthreads () >= wanted)
619 return;
620
621 /* todo: maybe use idle here, but might be less exact */
622 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
623 return;
624
625 start_thread ();
626}
627
628static void req_send (aio_req req)
629{
630 ++nreqs;
631
632 LOCK (reqlock);
633 ++nready;
634 reqq_push (&req_queue, req);
635 pthread_cond_signal (&reqwait);
636 UNLOCK (reqlock);
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 pthread_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) 706 while (eio_nreqs ())
687 { 707 {
688 int size; 708 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 709
710 X_LOCK (EIO_POOL->reslock);
690 size = res_queue.size; 711 size = EIO_POOL->res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 712 X_UNLOCK (EIO_POOL->reslock);
692 713
693 if (size) 714 if (size)
694 return; 715 return;
695 716
696 maybe_start_thread (); 717 etp_maybe_start_thread (EIO_POOL);
697 718
698 FD_ZERO(&rfd); 719 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 720 }
703} 721}
704 722
705static int poll_cb () 723static int
724poll_cb (void)
706{ 725{
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 for (;;) 726 for (;;)
718 { 727 {
719 for (;;) 728 int res = eio_poll ();
729
730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758#endif
759
760#define MMAP_MAGIC PERL_MAGIC_ext
761
762static int ecb_cold
763mmap_free (pTHX_ SV *sv, MAGIC *mg)
764{
765 int old_errno = errno;
766 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767 errno = old_errno;
768
769 mg->mg_obj = 0; /* just in case */
770
771 SvREADONLY_off (sv);
772
773 if (SvPVX (sv) != mg->mg_ptr)
774 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776 SvCUR_set (sv, 0);
777 SvPVX (sv) = 0;
778 SvOK_off (sv);
779
780 return 0;
781}
782
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786
787/*****************************************************************************/
788
789static SV *
790get_cb (SV *cb_sv)
791{
792 SvGETMAGIC (cb_sv);
793 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
794}
795
796static aio_req ecb_noinline
797dreq (SV *callback)
798{
799 SV *cb_cv;
800 aio_req req;
801 int req_pri = next_pri;
802 next_pri = EIO_PRI_DEFAULT;
803
804 cb_cv = get_cb (callback);
805
806 req = calloc (sizeof (*req), 1);
807 if (!req)
808 croak ("out of memory during eio_req allocation");
809
810 req->callback = SvREFCNT_inc (cb_cv);
811 req->pri = req_pri;
812
813 return req;
814}
815
816#define dREQ \
817 aio_req req = dreq (callback); \
818
819#define REQ_SEND \
820 PUTBACK; \
821 req_submit (req); \
822 SPAGAIN; \
823 \
824 if (GIMME_V != G_VOID) \
825 XPUSHs (req_sv (req, aio_req_stash));
826
827ecb_inline void
828req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
829{
830 if (expect_false (SvROK (path)))
831 {
832 SV *rv = SvRV (path);
833 SV *wdob;
834
835 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
720 { 836 {
721 maybe_start_thread (); 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
722 839
723 LOCK (reslock); 840 if (SvOK (wdob))
724 req = reqq_shift (&res_queue);
725
726 if (req)
727 { 841 {
728 --npending; 842 *wd = SvAIO_WD (wdob);
729 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
730 if (!res_queue.size)
731 {
732 /* read any signals sent by the worker threads */
733 char buf [32];
734 while (read (respipe [0], buf, 32) == 32)
735 ;
736 }
737 }
738
739 UNLOCK (reslock);
740
741 if (!req)
742 break;
743
744 --nreqs;
745
746 if (req->type == REQ_GROUP && req->size)
747 {
748 req->int1 = 1; /* mark request as delayed */
749 continue;
750 } 844 }
751 else 845 else
752 { 846 *wd = EIO_INVALID_WD;
753 req_invoke (req);
754
755 count++;
756 }
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 } 847 }
848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
849 {
850 *wd = (aio_wd)(long)SvIVX (rv);
851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
854 }
855 else
856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
857 }
771 858
772 if (nreqs <= max_outstanding) 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
861}
862
863static void ecb_noinline
864req_set_path1 (aio_req req, SV *path)
865{
866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
867}
868
869static void ecb_noinline
870req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
871{
872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
873
874 switch (SvTYPE (rv))
875 {
876 case SVt_PVIO:
877 case SVt_PVLV:
878 case SVt_PVGV:
879 req->type = type_fh;
880 req->sv1 = newSVsv (fh_or_path);
881 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
773 break; 882 break;
774 883
775 poll_wait (); 884 default:
776 885 req->type = type_path;
777 ++maxreqs; 886 req_set_path1 (req, fh_or_path);
887 break;
778 } 888 }
779
780 return count;
781} 889}
782 890
783static void create_pipe () 891XS(boot_IO__AIO) ecb_cold;
784{
785 if (pipe (respipe))
786 croak ("unable to initialize result pipe");
787 892
788 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
789 croak ("cannot set result pipe to nonblocking mode");
790
791 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
792 croak ("cannot set result pipe to nonblocking mode");
793}
794
795/*****************************************************************************/
796/* work around various missing functions */
797
798#if !HAVE_PREADWRITE
799# define pread aio_pread
800# define pwrite aio_pwrite
801
802/*
803 * make our pread/pwrite safe against themselves, but not against
804 * normal read/write by using a mutex. slows down execution a lot,
805 * but that's your problem, not mine.
806 */
807static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
808
809static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
810{
811 ssize_t res;
812 off_t ooffset;
813
814 LOCK (preadwritelock);
815 ooffset = lseek (fd, 0, SEEK_CUR);
816 lseek (fd, offset, SEEK_SET);
817 res = read (fd, buf, count);
818 lseek (fd, ooffset, SEEK_SET);
819 UNLOCK (preadwritelock);
820
821 return res;
822}
823
824static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
825{
826 ssize_t res;
827 off_t ooffset;
828
829 LOCK (preadwritelock);
830 ooffset = lseek (fd, 0, SEEK_CUR);
831 lseek (fd, offset, SEEK_SET);
832 res = write (fd, buf, count);
833 lseek (fd, offset, SEEK_SET);
834 UNLOCK (preadwritelock);
835
836 return res;
837}
838#endif
839
840#if !HAVE_FDATASYNC
841# define fdatasync fsync
842#endif
843
844#if !HAVE_READAHEAD
845# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
846
847static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
848{
849 dBUF;
850
851 while (count > 0)
852 {
853 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
854
855 pread (fd, aio_buf, len, offset);
856 offset += len;
857 count -= len;
858 }
859
860 errno = 0;
861}
862
863#endif
864
865#if !HAVE_READDIR_R
866# define readdir_r aio_readdir_r
867
868static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
869
870static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
871{
872 struct dirent *e;
873 int errorno;
874
875 LOCK (readdirlock);
876
877 e = readdir (dirp);
878 errorno = errno;
879
880 if (e)
881 {
882 *res = ent;
883 strcpy (ent->d_name, e->d_name);
884 }
885 else
886 *res = 0;
887
888 UNLOCK (readdirlock);
889
890 errno = errorno;
891 return e ? 0 : -1;
892}
893#endif
894
895/* sendfile always needs emulation */
896static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
897{
898 ssize_t res;
899
900 if (!count)
901 return 0;
902
903#if HAVE_SENDFILE
904# if __linux
905 res = sendfile (ofd, ifd, &offset, count);
906
907# elif __freebsd
908 /*
909 * Of course, the freebsd sendfile is a dire hack with no thoughts
910 * wasted on making it similar to other I/O functions.
911 */
912 {
913 off_t sbytes;
914 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
915
916 if (res < 0 && sbytes)
917 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
918 res = sbytes;
919 }
920
921# elif __hpux
922 res = sendfile (ofd, ifd, offset, count, 0, 0);
923
924# elif __solaris
925 {
926 struct sendfilevec vec;
927 size_t sbytes;
928
929 vec.sfv_fd = ifd;
930 vec.sfv_flag = 0;
931 vec.sfv_off = offset;
932 vec.sfv_len = count;
933
934 res = sendfilev (ofd, &vec, 1, &sbytes);
935
936 if (res < 0 && sbytes)
937 res = sbytes;
938 }
939
940# endif
941#else
942 res = -1;
943 errno = ENOSYS;
944#endif
945
946 if (res < 0
947 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
948#if __solaris
949 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
950#endif
951 )
952 )
953 {
954 /* emulate sendfile. this is a major pain in the ass */
955 dBUF;
956
957 res = 0;
958
959 while (count)
960 {
961 ssize_t cnt;
962
963 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
964
965 if (cnt <= 0)
966 {
967 if (cnt && !res) res = -1;
968 break;
969 }
970
971 cnt = write (ofd, aio_buf, cnt);
972
973 if (cnt <= 0)
974 {
975 if (cnt && !res) res = -1;
976 break;
977 }
978
979 offset += cnt;
980 res += cnt;
981 count -= cnt;
982 }
983 }
984
985 return res;
986}
987
988/* read a full directory */
989static void scandir_ (aio_req req, worker *self)
990{
991 DIR *dirp;
992 union
993 {
994 struct dirent d;
995 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
996 } *u;
997 struct dirent *entp;
998 char *name, *names;
999 int memlen = 4096;
1000 int memofs = 0;
1001 int res = 0;
1002 int errorno;
1003
1004 LOCK (wrklock);
1005 self->dirp = dirp = opendir (req->ptr1);
1006 self->dbuf = u = malloc (sizeof (*u));
1007 req->flags |= FLAG_PTR2_FREE;
1008 req->ptr2 = names = malloc (memlen);
1009 UNLOCK (wrklock);
1010
1011 if (dirp && u && names)
1012 for (;;)
1013 {
1014 errno = 0;
1015 readdir_r (dirp, &u->d, &entp);
1016
1017 if (!entp)
1018 break;
1019
1020 name = entp->d_name;
1021
1022 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1023 {
1024 int len = strlen (name) + 1;
1025
1026 res++;
1027
1028 while (memofs + len > memlen)
1029 {
1030 memlen *= 2;
1031 LOCK (wrklock);
1032 req->ptr2 = names = realloc (names, memlen);
1033 UNLOCK (wrklock);
1034
1035 if (!names)
1036 break;
1037 }
1038
1039 memcpy (names + memofs, name, len);
1040 memofs += len;
1041 }
1042 }
1043
1044 if (errno)
1045 res = -1;
1046
1047 req->result = res;
1048}
1049
1050/*****************************************************************************/
1051
1052static void *aio_proc (void *thr_arg)
1053{
1054 aio_req req;
1055 struct timespec ts;
1056 worker *self = (worker *)thr_arg;
1057
1058 /* try to distribute timeouts somewhat evenly */
1059 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1060 * (1000000000UL / 1024UL);
1061
1062 for (;;)
1063 {
1064 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1065
1066 LOCK (reqlock);
1067
1068 for (;;)
1069 {
1070 self->req = req = reqq_shift (&req_queue);
1071
1072 if (req)
1073 break;
1074
1075 ++idle;
1076
1077 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1078 == ETIMEDOUT)
1079 {
1080 if (idle > max_idle)
1081 {
1082 --idle;
1083 UNLOCK (reqlock);
1084 LOCK (wrklock);
1085 --started;
1086 UNLOCK (wrklock);
1087 goto quit;
1088 }
1089
1090 /* we are allowed to idle, so do so without any timeout */
1091 pthread_cond_wait (&reqwait, &reqlock);
1092 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1093 }
1094
1095 --idle;
1096 }
1097
1098 --nready;
1099
1100 UNLOCK (reqlock);
1101
1102 errno = 0; /* strictly unnecessary */
1103
1104 if (!(req->flags & FLAG_CANCELLED))
1105 switch (req->type)
1106 {
1107 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1108 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1109
1110 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1111 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1112
1113 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1114 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1115 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1116
1117 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1118 case REQ_CLOSE: req->result = close (req->int1); break;
1119 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1120 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1121 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1122 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1123 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1124 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1125 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1126
1127 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1128 case REQ_FSYNC: req->result = fsync (req->int1); break;
1129 case REQ_READDIR: scandir_ (req, self); break;
1130
1131 case REQ_BUSY:
1132 {
1133 struct timeval tv;
1134
1135 tv.tv_sec = req->int1;
1136 tv.tv_usec = req->int2;
1137
1138 req->result = select (0, 0, 0, 0, &tv);
1139 }
1140
1141 case REQ_GROUP:
1142 case REQ_NOP:
1143 break;
1144
1145 case REQ_QUIT:
1146 goto quit;
1147
1148 default:
1149 req->result = ENOSYS;
1150 break;
1151 }
1152
1153 req->errorno = errno;
1154
1155 LOCK (reslock);
1156
1157 ++npending;
1158
1159 if (!reqq_push (&res_queue, req))
1160 /* write a dummy byte to the pipe so fh becomes ready */
1161 write (respipe [1], &respipe, 1);
1162
1163 self->req = 0;
1164 worker_clear (self);
1165
1166 UNLOCK (reslock);
1167 }
1168
1169quit:
1170 LOCK (wrklock);
1171 worker_free (self);
1172 UNLOCK (wrklock);
1173
1174 return 0;
1175}
1176
1177/*****************************************************************************/
1178
1179static void atfork_prepare (void)
1180{
1181 LOCK (wrklock);
1182 LOCK (reqlock);
1183 LOCK (reslock);
1184#if !HAVE_PREADWRITE
1185 LOCK (preadwritelock);
1186#endif
1187#if !HAVE_READDIR_R
1188 LOCK (readdirlock);
1189#endif
1190}
1191
1192static void atfork_parent (void)
1193{
1194#if !HAVE_READDIR_R
1195 UNLOCK (readdirlock);
1196#endif
1197#if !HAVE_PREADWRITE
1198 UNLOCK (preadwritelock);
1199#endif
1200 UNLOCK (reslock);
1201 UNLOCK (reqlock);
1202 UNLOCK (wrklock);
1203}
1204
1205static void atfork_child (void)
1206{
1207 aio_req prv;
1208
1209 while (prv = reqq_shift (&req_queue))
1210 req_free (prv);
1211
1212 while (prv = reqq_shift (&res_queue))
1213 req_free (prv);
1214
1215 while (wrk_first.next != &wrk_first)
1216 {
1217 worker *wrk = wrk_first.next;
1218
1219 if (wrk->req)
1220 req_free (wrk->req);
1221
1222 worker_clear (wrk);
1223 worker_free (wrk);
1224 }
1225
1226 started = 0;
1227 idle = 0;
1228 nreqs = 0;
1229 nready = 0;
1230 npending = 0;
1231
1232 close (respipe [0]);
1233 close (respipe [1]);
1234 create_pipe ();
1235
1236 atfork_parent ();
1237}
1238
1239#define dREQ \
1240 aio_req req; \
1241 int req_pri = next_pri; \
1242 next_pri = DEFAULT_PRI + PRI_BIAS; \
1243 \
1244 if (SvOK (callback) && !SvROK (callback)) \
1245 croak ("callback must be undef or of reference type"); \
1246 \
1247 Newz (0, req, 1, aio_cb); \
1248 if (!req) \
1249 croak ("out of memory during aio_req allocation"); \
1250 \
1251 req->callback = newSVsv (callback); \
1252 req->pri = req_pri
1253
1254#define REQ_SEND \
1255 req_send (req); \
1256 \
1257 if (GIMME_V != G_VOID) \
1258 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1259
1260MODULE = IO::AIO PACKAGE = IO::AIO 893MODULE = IO::AIO PACKAGE = IO::AIO
1261 894
1262PROTOTYPES: ENABLE 895PROTOTYPES: ENABLE
1263 896
1264BOOT: 897BOOT:
1265{ 898{
899 static const struct {
900 const char *name;
901 IV iv;
902 } *civ, const_iv[] = {
903# define const_niv(name, value) { # name, (IV) value },
904# define const_iv(name) { # name, (IV) name },
905# define const_eio(name) { # name, (IV) EIO_ ## name },
906
907 /* you have to re-run ./gendef0 after adding/removing any constants here */
908 /* the first block can be undef if missing */
909 const_iv (ENOSYS)
910 const_iv (EXDEV)
911 const_iv (EBADR)
912
913 /* for lseek */
914 const_iv (SEEK_DATA)
915 const_iv (SEEK_HOLE)
916
917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
920 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
921 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
922 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
923
924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929 const_niv (MADV_FREE , POSIX_MADV_FREE)
930
931 /* the second block will be 0 when missing */
932 const_iv (O_RDONLY)
933 const_iv (O_WRONLY)
934 const_iv (O_RDWR)
935 const_iv (O_CREAT)
936 const_iv (O_TRUNC)
937 const_iv (O_EXCL)
938 const_iv (O_APPEND)
939
940 const_iv (O_ASYNC)
941 const_iv (O_DIRECT)
942 const_iv (O_NOATIME)
943
944 const_iv (O_CLOEXEC)
945 const_iv (O_NOCTTY)
946 const_iv (O_NOFOLLOW)
947 const_iv (O_NONBLOCK)
948 const_iv (O_EXEC)
949 const_iv (O_SEARCH)
950 const_iv (O_DIRECTORY)
951 const_iv (O_DSYNC)
952 const_iv (O_RSYNC)
953 const_iv (O_SYNC)
954 const_iv (O_PATH)
955 const_iv (O_TMPFILE)
956 const_iv (O_TTY_INIT)
957
958 const_iv (S_IFIFO)
959 const_iv (S_IFCHR)
960 const_iv (S_IFBLK)
961 const_iv (S_IFLNK)
962 const_iv (S_IFREG)
963 const_iv (S_IFDIR)
964 const_iv (S_IFWHT)
965 const_iv (S_IFSOCK)
966 const_iv (S_IFMT)
967
968 const_iv (ST_RDONLY)
969 const_iv (ST_NOSUID)
970 const_iv (ST_NODEV)
971 const_iv (ST_NOEXEC)
972 const_iv (ST_SYNCHRONOUS)
973 const_iv (ST_MANDLOCK)
974 const_iv (ST_WRITE)
975 const_iv (ST_APPEND)
976 const_iv (ST_IMMUTABLE)
977 const_iv (ST_NOATIME)
978 const_iv (ST_NODIRATIME)
979 const_iv (ST_RELATIME)
980
981 const_iv (PROT_NONE)
982 const_iv (PROT_EXEC)
983 const_iv (PROT_READ)
984 const_iv (PROT_WRITE)
985
986 const_iv (MAP_PRIVATE)
987 const_iv (MAP_SHARED)
988 const_iv (MAP_FIXED)
989 const_iv (MAP_ANONYMOUS)
990
991 /* linuxish */
992 const_iv (MAP_LOCKED)
993 const_iv (MAP_NORESERVE)
994 const_iv (MAP_POPULATE)
995 const_iv (MAP_NONBLOCK)
996 const_iv (MAP_GROWSDOWN)
997 const_iv (MAP_32BIT)
998 const_iv (MAP_HUGETLB)
999 const_iv (MAP_STACK)
1000
1001 const_iv (FIFREEZE)
1002 const_iv (FITHAW)
1003 const_iv (FITRIM)
1004 const_iv (FICLONE)
1005 const_iv (FICLONERANGE)
1006 const_iv (FIDEDUPERANGE)
1007
1008 const_iv (FS_IOC_GETFLAGS)
1009 const_iv (FS_IOC_SETFLAGS)
1010 const_iv (FS_IOC_GETVERSION)
1011 const_iv (FS_IOC_SETVERSION)
1012 const_iv (FS_IOC_FIEMAP)
1013 const_iv (FS_IOC_FSGETXATTR)
1014 const_iv (FS_IOC_FSSETXATTR)
1015 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1016 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1017 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1018
1019 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1020
1021 const_iv (FS_SECRM_FL)
1022 const_iv (FS_UNRM_FL)
1023 const_iv (FS_COMPR_FL)
1024 const_iv (FS_SYNC_FL)
1025 const_iv (FS_IMMUTABLE_FL)
1026 const_iv (FS_APPEND_FL)
1027 const_iv (FS_NODUMP_FL)
1028 const_iv (FS_NOATIME_FL)
1029 const_iv (FS_DIRTY_FL)
1030 const_iv (FS_COMPRBLK_FL)
1031 const_iv (FS_NOCOMP_FL)
1032 const_iv (FS_ENCRYPT_FL)
1033 const_iv (FS_BTREE_FL)
1034 const_iv (FS_INDEX_FL)
1035 const_iv (FS_JOURNAL_DATA_FL)
1036 const_iv (FS_NOTAIL_FL)
1037 const_iv (FS_DIRSYNC_FL)
1038 const_iv (FS_TOPDIR_FL)
1039 const_iv (FS_FL_USER_MODIFIABLE)
1040
1041 const_iv (FS_XFLAG_REALTIME)
1042 const_iv (FS_XFLAG_PREALLOC)
1043 const_iv (FS_XFLAG_IMMUTABLE)
1044 const_iv (FS_XFLAG_APPEND)
1045 const_iv (FS_XFLAG_SYNC)
1046 const_iv (FS_XFLAG_NOATIME)
1047 const_iv (FS_XFLAG_NODUMP)
1048 const_iv (FS_XFLAG_RTINHERIT)
1049 const_iv (FS_XFLAG_PROJINHERIT)
1050 const_iv (FS_XFLAG_NOSYMLINKS)
1051 const_iv (FS_XFLAG_EXTSIZE)
1052 const_iv (FS_XFLAG_EXTSZINHERIT)
1053 const_iv (FS_XFLAG_NODEFRAG)
1054 const_iv (FS_XFLAG_FILESTREAM)
1055 const_iv (FS_XFLAG_DAX)
1056 const_iv (FS_XFLAG_HASATTR)
1057
1058 const_iv (FIEMAP_FLAG_SYNC)
1059 const_iv (FIEMAP_FLAG_XATTR)
1060 const_iv (FIEMAP_FLAGS_COMPAT)
1061 const_iv (FIEMAP_EXTENT_LAST)
1062 const_iv (FIEMAP_EXTENT_UNKNOWN)
1063 const_iv (FIEMAP_EXTENT_DELALLOC)
1064 const_iv (FIEMAP_EXTENT_ENCODED)
1065 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1066 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1067 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1068 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1069 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1070 const_iv (FIEMAP_EXTENT_MERGED)
1071 const_iv (FIEMAP_EXTENT_SHARED)
1072
1073 const_iv (SPLICE_F_MOVE)
1074 const_iv (SPLICE_F_NONBLOCK)
1075 const_iv (SPLICE_F_MORE)
1076 const_iv (SPLICE_F_GIFT)
1077
1078 /* these are libeio constants, and are independent of gendef0 */
1079 const_eio (SEEK_SET)
1080 const_eio (SEEK_CUR)
1081 const_eio (SEEK_END)
1082
1083 const_eio (MCL_FUTURE)
1084 const_eio (MCL_CURRENT)
1085
1086 const_eio (MS_ASYNC)
1087 const_eio (MS_INVALIDATE)
1088 const_eio (MS_SYNC)
1089
1090 const_eio (MT_MODIFY)
1091
1092 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1093 const_eio (SYNC_FILE_RANGE_WRITE)
1094 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1095
1096 const_eio (FALLOC_FL_KEEP_SIZE)
1097 const_eio (FALLOC_FL_PUNCH_HOLE)
1098 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1099 const_eio (FALLOC_FL_ZERO_RANGE)
1100
1101 const_eio (RENAME_NOREPLACE)
1102 const_eio (RENAME_EXCHANGE)
1103 const_eio (RENAME_WHITEOUT)
1104
1105 const_eio (READDIR_DENTS)
1106 const_eio (READDIR_DIRS_FIRST)
1107 const_eio (READDIR_STAT_ORDER)
1108 const_eio (READDIR_FOUND_UNKNOWN)
1109
1110 const_eio (DT_UNKNOWN)
1111 const_eio (DT_FIFO)
1112 const_eio (DT_CHR)
1113 const_eio (DT_DIR)
1114 const_eio (DT_BLK)
1115 const_eio (DT_REG)
1116 const_eio (DT_LNK)
1117 const_eio (DT_SOCK)
1118 const_eio (DT_WHT)
1119 };
1120
1266 HV *stash = gv_stashpv ("IO::AIO", 1); 1121 aio_stash = gv_stashpv ("IO::AIO" , 1);
1122 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1123 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1124 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1267 1125
1268 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1126 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1269 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1127 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1270 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1271 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1272 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1273 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1274 1128
1275 create_pipe (); 1129 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1276 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1277}
1278 1130
1131 reinit ();
1132}
1133
1279void 1134void
1135reinit ()
1136 PROTOTYPE:
1137
1138void
1280max_poll_reqs (int nreqs) 1139max_poll_reqs (unsigned int nreqs)
1281 PROTOTYPE: $ 1140 PROTOTYPE: $
1282 CODE: 1141 CODE:
1283 max_poll_reqs = nreqs; 1142 eio_set_max_poll_reqs (nreqs);
1284 1143
1285void 1144void
1286max_poll_time (double nseconds) 1145max_poll_time (double nseconds)
1287 PROTOTYPE: $ 1146 PROTOTYPE: $
1288 CODE: 1147 CODE:
1289 max_poll_time = nseconds * AIO_TICKS; 1148 eio_set_max_poll_time (nseconds);
1290 1149
1291void 1150void
1292min_parallel (int nthreads) 1151min_parallel (unsigned int nthreads)
1293 PROTOTYPE: $
1294
1295void
1296max_parallel (int nthreads)
1297 PROTOTYPE: $
1298
1299void
1300max_idle (int nthreads)
1301 PROTOTYPE: $ 1152 PROTOTYPE: $
1302 CODE: 1153 CODE:
1303 set_max_idle (nthreads); 1154 eio_set_min_parallel (nthreads);
1304 1155
1305int 1156void
1306max_outstanding (int maxreqs) 1157max_parallel (unsigned int nthreads)
1307 PROTOTYPE: $ 1158 PROTOTYPE: $
1308 CODE: 1159 CODE:
1309 RETVAL = max_outstanding; 1160 eio_set_max_parallel (nthreads);
1161
1162void
1163max_idle (unsigned int nthreads)
1164 PROTOTYPE: $
1165 CODE:
1166 eio_set_max_idle (nthreads);
1167
1168void
1169idle_timeout (unsigned int seconds)
1170 PROTOTYPE: $
1171 CODE:
1172 eio_set_idle_timeout (seconds);
1173
1174void
1175max_outstanding (unsigned int maxreqs)
1176 PROTOTYPE: $
1177 CODE:
1310 max_outstanding = maxreqs; 1178 max_outstanding = maxreqs;
1311 OUTPUT:
1312 RETVAL
1313 1179
1314void 1180void
1315aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1181aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1316 SV8 * pathname
1317 int flags
1318 int mode
1319 SV * callback
1320 PROTOTYPE: $$$;$
1321 PPCODE: 1182 PPCODE:
1322{ 1183{
1323 dREQ; 1184 dREQ;
1324 1185
1186 req->type = EIO_WD_OPEN;
1187 req_set_path1 (req, pathname);
1188
1189 REQ_SEND;
1190}
1191
1192void
1193aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1194 PPCODE:
1195{
1196 dREQ;
1197
1325 req->type = REQ_OPEN; 1198 req->type = EIO_OPEN;
1326 req->sv1 = newSVsv (pathname); 1199 req_set_path1 (req, pathname);
1327 req->ptr1 = SvPVbyte_nolen (req->sv1);
1328 req->int1 = flags; 1200 req->int1 = flags;
1329 req->mode = mode; 1201 req->int2 = mode;
1330 1202
1331 REQ_SEND; 1203 REQ_SEND;
1332} 1204}
1333 1205
1334void 1206void
1335aio_close (fh,callback=&PL_sv_undef) 1207aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1336 SV * fh
1337 SV * callback
1338 PROTOTYPE: $;$
1339 ALIAS: 1208 ALIAS:
1340 aio_close = REQ_CLOSE
1341 aio_fsync = REQ_FSYNC 1209 aio_fsync = EIO_FSYNC
1342 aio_fdatasync = REQ_FDATASYNC 1210 aio_fdatasync = EIO_FDATASYNC
1211 aio_syncfs = EIO_SYNCFS
1343 PPCODE: 1212 PPCODE:
1344{ 1213{
1214 int fd = s_fileno_croak (fh, 0);
1345 dREQ; 1215 dREQ;
1346 1216
1347 req->type = ix; 1217 req->type = ix;
1348 req->fh = newSVsv (fh); 1218 req->sv1 = newSVsv (fh);
1349 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1219 req->int1 = fd;
1350 1220
1351 REQ_SEND (req); 1221 REQ_SEND;
1352} 1222}
1353 1223
1354void 1224void
1225aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1226 PPCODE:
1227{
1228 int fd = s_fileno_croak (fh, 0);
1229 dREQ;
1230
1231 req->type = EIO_SYNC_FILE_RANGE;
1232 req->sv1 = newSVsv (fh);
1233 req->int1 = fd;
1234 req->offs = offset;
1235 req->size = nbytes;
1236 req->int2 = flags;
1237
1238 REQ_SEND;
1239}
1240
1241void
1242aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1243 PPCODE:
1244{
1245 int fd = s_fileno_croak (fh, 0);
1246 dREQ;
1247
1248 req->type = EIO_FALLOCATE;
1249 req->sv1 = newSVsv (fh);
1250 req->int1 = fd;
1251 req->int2 = mode;
1252 req->offs = offset;
1253 req->size = len;
1254
1255 REQ_SEND;
1256}
1257
1258void
1259aio_close (SV *fh, SV *callback = &PL_sv_undef)
1260 PPCODE:
1261{
1262 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1263 int fd = s_fileno_croak (fh, 0);
1264 dREQ;
1265
1266 if (expect_false (close_fd < 0))
1267 {
1268 int pipefd [2];
1269
1270 if (
1271#ifdef _WIN32
1272 _pipe (pipefd, 1, _O_BINARY) < 0
1273#else
1274 pipe (pipefd) < 0
1275 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1276#endif
1277 || close (pipefd [1]) < 0
1278 )
1279 abort (); /*D*/
1280
1281 close_fd = pipefd [0];
1282 }
1283
1284 req->type = EIO_DUP2;
1285 req->int1 = close_fd;
1286 req->sv2 = newSVsv (fh);
1287 req->int2 = fd;
1288
1289 REQ_SEND;
1290}
1291
1292void
1293aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1294 PPCODE:
1295{
1296 int fd = s_fileno_croak (fh, 0);
1297 dREQ;
1298
1299 req->type = EIO_SEEK;
1300 req->sv1 = newSVsv (fh);
1301 req->int1 = fd;
1302 req->offs = SvVAL64 (offset);
1303 req->int2 = whence;
1304
1305 REQ_SEND;
1306}
1307
1308void
1355aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1309aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1356 SV * fh
1357 UV offset
1358 UV length
1359 SV8 * data
1360 UV dataoffset
1361 SV * callback
1362 ALIAS: 1310 ALIAS:
1363 aio_read = REQ_READ 1311 aio_read = EIO_READ
1364 aio_write = REQ_WRITE 1312 aio_write = EIO_WRITE
1365 PROTOTYPE: $$$$$;$
1366 PPCODE: 1313 PPCODE:
1367{ 1314{
1368 STRLEN svlen; 1315 STRLEN svlen;
1316 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1369 char *svptr = SvPVbyte (data, svlen); 1317 char *svptr = SvPVbyte (data, svlen);
1370 1318 UV len = SvUV (length);
1371 SvUPGRADE (data, SVt_PV);
1372 SvPOK_on (data);
1373 1319
1374 if (dataoffset < 0) 1320 if (dataoffset < 0)
1375 dataoffset += svlen; 1321 dataoffset += svlen;
1376 1322
1377 if (dataoffset < 0 || dataoffset > svlen) 1323 if (dataoffset < 0 || dataoffset > svlen)
1378 croak ("data offset outside of string"); 1324 croak ("dataoffset outside of data scalar");
1379 1325
1380 if (ix == REQ_WRITE) 1326 if (ix == EIO_WRITE)
1381 { 1327 {
1382 /* write: check length and adjust. */ 1328 /* write: check length and adjust. */
1383 if (length < 0 || length + dataoffset > svlen) 1329 if (!SvOK (length) || len + dataoffset > svlen)
1384 length = svlen - dataoffset; 1330 len = svlen - dataoffset;
1385 } 1331 }
1386 else 1332 else
1387 { 1333 {
1388 /* read: grow scalar as necessary */ 1334 /* read: check type and grow scalar as necessary */
1335 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1389 svptr = SvGROW (data, length + dataoffset); 1336 svptr = sv_grow (data, len + dataoffset + 1);
1337 else if (SvCUR (data) < len + dataoffset)
1338 croak ("length + dataoffset outside of scalar, and cannot grow");
1390 } 1339 }
1391
1392 if (length < 0)
1393 croak ("length must not be negative");
1394 1340
1395 { 1341 {
1396 dREQ; 1342 dREQ;
1397 1343
1398 req->type = ix; 1344 req->type = ix;
1399 req->fh = newSVsv (fh); 1345 req->sv1 = newSVsv (fh);
1400 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1346 req->int1 = fd;
1401 : IoOFP (sv_2io (fh))); 1347 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1402 req->offs = offset;
1403 req->size = length; 1348 req->size = len;
1404 req->sv1 = SvREFCNT_inc (data); 1349 req->sv2 = SvREFCNT_inc (data);
1405 req->ptr1 = (char *)svptr + dataoffset; 1350 req->ptr2 = (char *)svptr + dataoffset;
1406 req->stroffset = dataoffset; 1351 req->stroffset = dataoffset;
1407 1352
1408 if (!SvREADONLY (data)) 1353 if (!SvREADONLY (data))
1409 { 1354 {
1410 SvREADONLY_on (data); 1355 SvREADONLY_on (data);
1411 req->flags |= FLAG_SV1_RO_OFF; 1356 req->flags |= FLAG_SV2_RO_OFF;
1412 } 1357 }
1413 1358
1414 REQ_SEND; 1359 REQ_SEND;
1415 } 1360 }
1416} 1361}
1417 1362
1418void 1363void
1419aio_readlink (path,callback=&PL_sv_undef) 1364aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1420 SV8 * path 1365 ALIAS:
1421 SV * callback 1366 aio_ioctl = EIO_IOCTL
1422 PROTOTYPE: $$;$ 1367 aio_fcntl = EIO_FCNTL
1423 PPCODE: 1368 PPCODE:
1424{ 1369{
1425 SV *data; 1370 int fd = s_fileno_croak (fh, 0);
1371 char *svptr;
1372
1373 if (SvPOK (arg) || !SvNIOK (arg))
1374 {
1375 STRLEN svlen;
1376 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1377#ifdef IOCPARM_LEN
1378 STRLEN need = IOCPARM_LEN (request);
1379#else
1380 STRLEN need = 256;
1381#endif
1382
1383 if (svlen < need)
1384 svptr = SvGROW (arg, need);
1385 }
1386 else
1387 svptr = (char *)SvIV (arg);
1388
1389 {
1390 dREQ;
1391
1392 req->type = ix;
1393 req->sv1 = newSVsv (fh);
1394 req->int1 = fd;
1395 req->int2 = (long)request;
1396 req->sv2 = SvREFCNT_inc (arg);
1397 req->ptr2 = svptr;
1398
1399 REQ_SEND;
1400 }
1401}
1402
1403void
1404aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1405 ALIAS:
1406 aio_readlink = EIO_READLINK
1407 aio_realpath = EIO_REALPATH
1408 PPCODE:
1409{
1426 dREQ; 1410 dREQ;
1427 1411
1428 data = newSV (NAME_MAX);
1429 SvPOK_on (data);
1430
1431 req->type = REQ_READLINK; 1412 req->type = ix;
1432 req->fh = newSVsv (path); 1413 req_set_path1 (req, pathname);
1433 req->ptr2 = SvPVbyte_nolen (req->fh);
1434 req->sv1 = data;
1435 req->ptr1 = SvPVbyte_nolen (data);
1436 1414
1437 REQ_SEND; 1415 REQ_SEND;
1438} 1416}
1439 1417
1440void 1418void
1441aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1419aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1442 SV * out_fh
1443 SV * in_fh
1444 UV in_offset
1445 UV length
1446 SV * callback
1447 PROTOTYPE: $$$$;$
1448 PPCODE: 1420 PPCODE:
1449{ 1421{
1422 int ifd = s_fileno_croak (in_fh , 0);
1423 int ofd = s_fileno_croak (out_fh, 1);
1450 dREQ; 1424 dREQ;
1451 1425
1452 req->type = REQ_SENDFILE; 1426 req->type = EIO_SENDFILE;
1453 req->fh = newSVsv (out_fh); 1427 req->sv1 = newSVsv (out_fh);
1454 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1428 req->int1 = ofd;
1455 req->sv2 = newSVsv (in_fh); 1429 req->sv2 = newSVsv (in_fh);
1456 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1430 req->int2 = ifd;
1457 req->offs = in_offset; 1431 req->offs = in_offset;
1458 req->size = length; 1432 req->size = length;
1459 1433
1460 REQ_SEND; 1434 REQ_SEND;
1461} 1435}
1462 1436
1463void 1437void
1464aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1438aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1465 SV * fh
1466 UV offset
1467 IV length
1468 SV * callback
1469 PROTOTYPE: $$$;$
1470 PPCODE: 1439 PPCODE:
1471{ 1440{
1441 int fd = s_fileno_croak (fh, 0);
1472 dREQ; 1442 dREQ;
1473 1443
1474 req->type = REQ_READAHEAD; 1444 req->type = EIO_READAHEAD;
1475 req->fh = newSVsv (fh); 1445 req->sv1 = newSVsv (fh);
1476 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1446 req->int1 = fd;
1477 req->offs = offset; 1447 req->offs = offset;
1478 req->size = length; 1448 req->size = length;
1479 1449
1480 REQ_SEND; 1450 REQ_SEND;
1481} 1451}
1482 1452
1483void 1453void
1484aio_stat (fh_or_path,callback=&PL_sv_undef) 1454aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1485 SV8 * fh_or_path
1486 SV * callback
1487 ALIAS: 1455 ALIAS:
1488 aio_stat = REQ_STAT 1456 aio_stat = EIO_STAT
1489 aio_lstat = REQ_LSTAT 1457 aio_lstat = EIO_LSTAT
1458 aio_statvfs = EIO_STATVFS
1490 PPCODE: 1459 PPCODE:
1491{ 1460{
1492 dREQ; 1461 dREQ;
1493 1462
1494 req->ptr2 = malloc (sizeof (Stat_t)); 1463 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1495 if (!req->ptr2)
1496 {
1497 req_free (req);
1498 croak ("out of memory during aio_stat statdata allocation");
1499 }
1500
1501 req->flags |= FLAG_PTR2_FREE;
1502
1503 if (SvPOK (fh_or_path))
1504 {
1505 req->type = ix;
1506 req->sv1 = newSVsv (fh_or_path);
1507 req->ptr1 = SvPVbyte_nolen (req->sv1);
1508 }
1509 else
1510 {
1511 req->type = REQ_FSTAT;
1512 req->fh = newSVsv (fh_or_path);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1514 }
1515 1464
1516 REQ_SEND; 1465 REQ_SEND;
1517} 1466}
1518 1467
1468UV
1469major (UV dev)
1470 ALIAS:
1471 minor = 1
1472 CODE:
1473 RETVAL = ix ? minor (dev) : major (dev);
1474 OUTPUT:
1475 RETVAL
1476
1477UV
1478makedev (UV maj, UV min)
1479 CODE:
1480 RETVAL = makedev (maj, min);
1481 OUTPUT:
1482 RETVAL
1483
1519void 1484void
1485aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1486 PPCODE:
1487{
1488 dREQ;
1489
1490 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1491 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1492 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1493
1494 REQ_SEND;
1495}
1496
1497void
1498aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1499 PPCODE:
1500{
1501 dREQ;
1502
1503 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1504 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1505
1506 REQ_SEND;
1507}
1508
1509void
1510aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1511 PPCODE:
1512{
1513 dREQ;
1514
1515 req->int2 = mode;
1516 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1517
1518 REQ_SEND;
1519}
1520
1521void
1522aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1523 PPCODE:
1524{
1525 dREQ;
1526
1527 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1528 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1529 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1530
1531 REQ_SEND;
1532}
1533
1534void
1535aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1536 PPCODE:
1537{
1538 dREQ;
1539
1540 req->type = EIO_READDIR;
1541 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1542
1543 if (flags & EIO_READDIR_DENTS)
1544 req->int1 |= EIO_READDIR_CUSTOM2;
1545
1546 req_set_path1 (req, pathname);
1547
1548 REQ_SEND;
1549}
1550
1551void
1552aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1553 PPCODE:
1554{
1555 dREQ;
1556
1557 req->type = EIO_MKDIR;
1558 req->int2 = mode;
1559 req_set_path1 (req, pathname);
1560
1561 REQ_SEND;
1562}
1563
1564void
1520aio_unlink (pathname,callback=&PL_sv_undef) 1565aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1521 SV8 * pathname
1522 SV * callback
1523 ALIAS: 1566 ALIAS:
1524 aio_unlink = REQ_UNLINK 1567 aio_unlink = EIO_UNLINK
1525 aio_rmdir = REQ_RMDIR 1568 aio_rmdir = EIO_RMDIR
1526 aio_readdir = REQ_READDIR 1569 aio_readdir = EIO_READDIR
1527 PPCODE: 1570 PPCODE:
1528{ 1571{
1529 dREQ; 1572 dREQ;
1530 1573
1531 req->type = ix; 1574 req->type = ix;
1532 req->sv1 = newSVsv (pathname); 1575 req_set_path1 (req, pathname);
1533 req->ptr1 = SvPVbyte_nolen (req->sv1);
1534 1576
1535 REQ_SEND; 1577 REQ_SEND;
1536} 1578}
1537 1579
1538void 1580void
1539aio_link (oldpath,newpath,callback=&PL_sv_undef) 1581aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1540 SV8 * oldpath
1541 SV8 * newpath
1542 SV * callback
1543 ALIAS: 1582 ALIAS:
1544 aio_link = REQ_LINK 1583 aio_link = EIO_LINK
1545 aio_symlink = REQ_SYMLINK 1584 aio_symlink = EIO_SYMLINK
1546 aio_rename = REQ_RENAME 1585 aio_rename = EIO_RENAME
1547 PPCODE: 1586 PPCODE:
1548{ 1587{
1588 eio_wd wd2 = 0;
1549 dREQ; 1589 dREQ;
1550 1590
1551 req->type = ix; 1591 req->type = ix;
1552 req->fh = newSVsv (oldpath); 1592 req_set_path1 (req, oldpath);
1553 req->ptr2 = SvPVbyte_nolen (req->fh); 1593 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1554 req->sv1 = newSVsv (newpath); 1594 req->int3 = (long)wd2;
1555 req->ptr1 = SvPVbyte_nolen (req->sv1);
1556 1595
1557 REQ_SEND; 1596 REQ_SEND;
1558} 1597}
1559 1598
1560void 1599void
1561aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1600aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1562 SV8 * pathname
1563 SV * callback
1564 UV mode
1565 UV dev
1566 PPCODE: 1601 PPCODE:
1567{ 1602{
1603 eio_wd wd2 = 0;
1568 dREQ; 1604 dREQ;
1569 1605
1570 req->type = REQ_MKNOD; 1606 req->type = EIO_RENAME;
1571 req->sv1 = newSVsv (pathname); 1607 req_set_path1 (req, oldpath);
1572 req->ptr1 = SvPVbyte_nolen (req->sv1); 1608 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1573 req->mode = (mode_t)mode; 1609 req->int2 = flags;
1574 req->offs = dev; 1610 req->int3 = (long)wd2;
1575 1611
1576 REQ_SEND; 1612 REQ_SEND;
1577} 1613}
1578 1614
1579void 1615void
1580aio_busy (delay,callback=&PL_sv_undef) 1616aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1581 double delay
1582 SV * callback
1583 PPCODE: 1617 PPCODE:
1584{ 1618{
1585 dREQ; 1619 dREQ;
1586 1620
1587 req->type = REQ_BUSY; 1621 req->type = EIO_MKNOD;
1588 req->int1 = delay < 0. ? 0 : delay; 1622 req->int2 = (mode_t)mode;
1589 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1623 req->offs = dev;
1590 1624 req_set_path1 (req, pathname);
1625
1591 REQ_SEND; 1626 REQ_SEND;
1592} 1627}
1593 1628
1594void 1629void
1595aio_group (callback=&PL_sv_undef) 1630aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1596 SV * callback 1631 ALIAS:
1597 PROTOTYPE: ;$ 1632 aio_mtouch = EIO_MTOUCH
1633 aio_msync = EIO_MSYNC
1598 PPCODE: 1634 PPCODE:
1599{ 1635{
1636 STRLEN svlen;
1637 char *svptr = SvPVbyte (data, svlen);
1638 UV len = SvUV (length);
1639
1640 if (flags < 0)
1641 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1642
1643 if (offset < 0)
1644 offset += svlen;
1645
1646 if (offset < 0 || offset > svlen)
1647 croak ("offset outside of scalar");
1648
1649 if (!SvOK (length) || len + offset > svlen)
1650 len = svlen - offset;
1651
1652 {
1653 dREQ;
1654
1655 req->type = ix;
1656 req->sv2 = SvREFCNT_inc (data);
1657 req->ptr2 = (char *)svptr + offset;
1658 req->size = len;
1659 req->int1 = flags;
1660
1661 REQ_SEND;
1662 }
1663}
1664
1665void
1666aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1667 PPCODE:
1668{
1669 STRLEN svlen;
1670 char *svptr = SvPVbyte (data, svlen);
1671 UV len = SvUV (length);
1672
1673 if (offset < 0)
1674 offset += svlen;
1675
1676 if (offset < 0 || offset > svlen)
1677 croak ("offset outside of scalar");
1678
1679 if (!SvOK (length) || len + offset > svlen)
1680 len = svlen - offset;
1681
1682 {
1683 dREQ;
1684
1685 req->type = EIO_MLOCK;
1686 req->sv2 = SvREFCNT_inc (data);
1687 req->ptr2 = (char *)svptr + offset;
1688 req->size = len;
1689
1690 REQ_SEND;
1691 }
1692}
1693
1694void
1695aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1696 PPCODE:
1697{
1698 dREQ;
1699
1700 req->type = EIO_MLOCKALL;
1701 req->int1 = flags;
1702
1703 REQ_SEND;
1704}
1705
1706void
1707aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1708 PPCODE:
1709{
1710 int fd = s_fileno_croak (fh, 0);
1600 dREQ; 1711 dREQ;
1601 1712
1602 req->type = REQ_GROUP; 1713 req->type = EIO_CUSTOM;
1714 req->sv1 = newSVsv (fh);
1715 req->int1 = fd;
1603 1716
1604 req_send (req); 1717 req->feed = fiemap;
1605 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1718#if HAVE_FIEMAP
1606} 1719 /* keep our fingers crossed that the next two types are 64 bit */
1720 req->offs = start;
1721 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1722 req->int2 = flags;
1723 req->int3 = SvOK (count) ? SvIV (count) : -1;
1724#endif
1607 1725
1726 REQ_SEND;
1727}
1728
1608void 1729void
1609aio_nop (callback=&PL_sv_undef) 1730aio_busy (double delay, SV *callback = &PL_sv_undef)
1610 SV * callback
1611 PPCODE: 1731 PPCODE:
1612{ 1732{
1613 dREQ; 1733 dREQ;
1614 1734
1615 req->type = REQ_NOP; 1735 req->type = EIO_BUSY;
1736 req->nv1 = delay < 0. ? 0. : delay;
1616 1737
1617 REQ_SEND; 1738 REQ_SEND;
1618} 1739}
1619 1740
1741void
1742aio_group (SV *callback = &PL_sv_undef)
1743 PPCODE:
1744{
1745 dREQ;
1746
1747 req->type = EIO_GROUP;
1748
1749 PUTBACK;
1750 req_submit (req);
1751 SPAGAIN;
1752
1753 XPUSHs (req_sv (req, aio_grp_stash));
1754}
1755
1756void
1757aio_nop (SV *callback = &PL_sv_undef)
1758 ALIAS:
1759 aio_nop = EIO_NOP
1760 aio_sync = EIO_SYNC
1761 PPCODE:
1762{
1763 dREQ;
1764
1765 req->type = ix;
1766
1767 REQ_SEND;
1768}
1769
1620int 1770int
1621aioreq_pri (int pri = 0) 1771aioreq_pri (int pri = NO_INIT)
1622 PROTOTYPE: ;$
1623 CODE: 1772 CODE:
1624 RETVAL = next_pri - PRI_BIAS; 1773 RETVAL = next_pri;
1625 if (items > 0) 1774 if (items > 0)
1626 { 1775 {
1627 if (pri < PRI_MIN) pri = PRI_MIN; 1776 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1628 if (pri > PRI_MAX) pri = PRI_MAX; 1777 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1629 next_pri = pri + PRI_BIAS; 1778 next_pri = pri;
1630 } 1779 }
1631 OUTPUT: 1780 OUTPUT:
1632 RETVAL 1781 RETVAL
1633 1782
1634void 1783void
1635aioreq_nice (int nice = 0) 1784aioreq_nice (int nice = 0)
1636 CODE: 1785 CODE:
1637 nice = next_pri - nice; 1786 nice = next_pri - nice;
1638 if (nice < PRI_MIN) nice = PRI_MIN; 1787 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1639 if (nice > PRI_MAX) nice = PRI_MAX; 1788 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1640 next_pri = nice + PRI_BIAS; 1789 next_pri = nice;
1641 1790
1642void 1791void
1643flush () 1792flush ()
1644 PROTOTYPE:
1645 CODE: 1793 CODE:
1646 while (nreqs) 1794 while (eio_nreqs ())
1647 { 1795 {
1648 poll_wait (); 1796 poll_wait ();
1649 poll_cb (); 1797 poll_cb ();
1650 } 1798 }
1651 1799
1652int 1800int
1653poll() 1801poll ()
1654 PROTOTYPE:
1655 CODE: 1802 CODE:
1656 poll_wait (); 1803 poll_wait ();
1657 RETVAL = poll_cb (); 1804 RETVAL = poll_cb ();
1658 OUTPUT: 1805 OUTPUT:
1659 RETVAL 1806 RETVAL
1660 1807
1661int 1808int
1662poll_fileno() 1809poll_fileno ()
1663 PROTOTYPE:
1664 CODE: 1810 CODE:
1665 RETVAL = respipe [0]; 1811 RETVAL = s_epipe_fd (&respipe);
1666 OUTPUT: 1812 OUTPUT:
1667 RETVAL 1813 RETVAL
1668 1814
1669int 1815int
1670poll_cb(...) 1816poll_cb (...)
1671 PROTOTYPE: 1817 PROTOTYPE:
1672 CODE: 1818 CODE:
1673 RETVAL = poll_cb (); 1819 RETVAL = poll_cb ();
1674 OUTPUT: 1820 OUTPUT:
1675 RETVAL 1821 RETVAL
1676 1822
1677void 1823void
1678poll_wait() 1824poll_wait ()
1679 PROTOTYPE:
1680 CODE: 1825 CODE:
1681 poll_wait (); 1826 poll_wait ();
1682 1827
1683int 1828int
1684nreqs() 1829nreqs ()
1685 PROTOTYPE:
1686 CODE: 1830 CODE:
1687 RETVAL = nreqs; 1831 RETVAL = eio_nreqs ();
1688 OUTPUT: 1832 OUTPUT:
1689 RETVAL 1833 RETVAL
1690 1834
1691int 1835int
1692nready() 1836nready ()
1693 PROTOTYPE:
1694 CODE: 1837 CODE:
1695 RETVAL = get_nready (); 1838 RETVAL = eio_nready ();
1696 OUTPUT: 1839 OUTPUT:
1697 RETVAL 1840 RETVAL
1698 1841
1699int 1842int
1700npending() 1843npending ()
1701 PROTOTYPE:
1702 CODE: 1844 CODE:
1703 RETVAL = get_npending (); 1845 RETVAL = eio_npending ();
1704 OUTPUT: 1846 OUTPUT:
1705 RETVAL 1847 RETVAL
1706 1848
1707int 1849int
1708nthreads() 1850nthreads ()
1709 PROTOTYPE:
1710 CODE: 1851 CODE:
1711 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1852 RETVAL = eio_nthreads ();
1712 RETVAL = started;
1713 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1714 OUTPUT: 1853 OUTPUT:
1715 RETVAL 1854 RETVAL
1716 1855
1856int
1857fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1858 CODE:
1859 RETVAL = posix_fadvise (fh, offset, length, advice);
1860 OUTPUT:
1861 RETVAL
1862
1863IV
1864sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1865 CODE:
1866 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1867 OUTPUT:
1868 RETVAL
1869
1870void
1871mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1872 PPCODE:
1873 sv_unmagic (scalar, MMAP_MAGIC);
1874{
1875 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1876 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1877 if (addr == (void *)-1)
1878 XSRETURN_NO;
1879
1880 sv_force_normal (scalar);
1881
1882 /* we store the length in mg_obj, as namlen is I32 :/ */
1883 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1884 ->mg_obj = (SV *)length;
1885
1886 SvUPGRADE (scalar, SVt_PV); /* nop... */
1887
1888 if (!(prot & PROT_WRITE))
1889 SvREADONLY_on (scalar);
1890
1891 if (SvLEN (scalar))
1892 Safefree (SvPVX (scalar));
1893
1894 SvPVX (scalar) = (char *)addr;
1895 SvCUR_set (scalar, length);
1896 SvLEN_set (scalar, 0);
1897 SvPOK_only (scalar);
1898
1899 XSRETURN_YES;
1900}
1901
1902void
1903munmap (SV *scalar)
1904 CODE:
1905 sv_unmagic (scalar, MMAP_MAGIC);
1906
1907int
1908madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1909 ALIAS:
1910 mprotect = 1
1911 CODE:
1912{
1913 STRLEN svlen;
1914 void *addr = SvPVbyte (scalar, svlen);
1915 STRLEN len = SvUV (length);
1916
1917 if (offset < 0)
1918 offset += svlen;
1919
1920 if (offset < 0 || offset > svlen)
1921 croak ("offset outside of scalar");
1922
1923 if (!SvOK (length) || len + offset > svlen)
1924 len = svlen - offset;
1925
1926 addr = (void *)(((intptr_t)addr) + offset);
1927 eio_page_align (&addr, &len);
1928
1929 switch (ix)
1930 {
1931 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1932 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1933 }
1934}
1935 OUTPUT:
1936 RETVAL
1937
1938int
1939munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1940 CODE:
1941{
1942 STRLEN svlen;
1943 void *addr = SvPVbyte (scalar, svlen);
1944 size_t len = SvUV (length);
1945
1946 if (offset < 0)
1947 offset += svlen;
1948
1949 if (offset < 0 || offset > svlen)
1950 croak ("offset outside of scalar");
1951
1952 if (!SvOK (length) || len + offset > svlen)
1953 len = svlen - offset;
1954
1955 addr = (void *)(((intptr_t)addr) + offset);
1956 eio_page_align (&addr, &len);
1957#if _POSIX_MEMLOCK_RANGE
1958 RETVAL = munlock (addr, len);
1959#else
1960 RETVAL = EIO_ENOSYS ();
1961#endif
1962}
1963 OUTPUT:
1964 RETVAL
1965
1966int
1967munlockall ()
1968 CODE:
1969#if _POSIX_MEMLOCK
1970 munlockall ();
1971#else
1972 RETVAL = EIO_ENOSYS ();
1973#endif
1974 OUTPUT:
1975 RETVAL
1976
1977int
1978splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1979 CODE:
1980{
1981#if HAVE_LINUX_SPLICE
1982 loff_t off_in_, off_out_;
1983 RETVAL = splice (
1984 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1985 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1986 length, flags
1987 );
1988#else
1989 RETVAL = EIO_ENOSYS ();
1990#endif
1991}
1992 OUTPUT:
1993 RETVAL
1994
1995int
1996tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1997 CODE:
1998#if HAVE_LINUX_SPLICE
1999 RETVAL = tee (rfh, wfh, length, flags);
2000#else
2001 RETVAL = EIO_ENOSYS ();
2002#endif
2003 OUTPUT:
2004 RETVAL
2005
2006int
2007pipesize (aio_rfd rfh, int new_size = -1)
2008 PROTOTYPE: $;$
2009 CODE:
2010#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2011 if (new_size >= 0)
2012 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2013 else
2014 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2015#else
2016 errno = ENOSYS;
2017 RETVAL = -1;
2018#endif
2019 OUTPUT:
2020 RETVAL
2021
2022void
2023pipe2 (int flags = 0)
2024 PROTOTYPE: ;$
2025 PPCODE:
2026{
2027 int fd[2];
2028 int res;
2029
2030 if (flags)
2031#if HAVE_PIPE2
2032 res = pipe2 (fd, flags);
2033#else
2034 res = (errno = ENOSYS, -1);
2035#endif
2036 else
2037 res = pipe (fd);
2038
2039 if (!res)
2040 {
2041 EXTEND (SP, 2);
2042 PUSHs (newmortalFH (fd[0], O_RDONLY));
2043 PUSHs (newmortalFH (fd[1], O_WRONLY));
2044 }
2045}
2046
2047void _on_next_submit (SV *cb)
2048 CODE:
2049 SvREFCNT_dec (on_next_submit);
2050 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2051
1717PROTOTYPES: DISABLE 2052PROTOTYPES: DISABLE
2053
2054MODULE = IO::AIO PACKAGE = IO::AIO::WD
2055
2056BOOT:
2057{
2058 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2059 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2060}
2061
2062void
2063DESTROY (SV *self)
2064 CODE:
2065{
2066 aio_wd wd = SvAIO_WD (self);
2067#if HAVE_AT
2068 {
2069 SV *callback = &PL_sv_undef;
2070 dREQ; /* clobbers next_pri :/ */
2071 next_pri = req->pri; /* restore next_pri */
2072 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2073 req->type = EIO_WD_CLOSE;
2074 req->wd = wd;
2075 REQ_SEND;
2076 }
2077#else
2078 eio_wd_close_sync (wd);
2079#endif
2080}
1718 2081
1719MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2082MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1720 2083
1721void 2084void
1722cancel (aio_req_ornot req) 2085cancel (aio_req_ornot req)
1723 CODE: 2086 CODE:
1724 req_cancel (req); 2087 eio_cancel (req);
1725 2088
1726void 2089void
1727cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2090cb (aio_req_ornot req, SV *callback = NO_INIT)
1728 CODE: 2091 PPCODE:
2092{
2093 if (GIMME_V != G_VOID)
2094 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2095
2096 if (items > 1)
2097 {
2098 SV *cb_cv = get_cb (callback);
2099
1729 SvREFCNT_dec (req->callback); 2100 SvREFCNT_dec (req->callback);
1730 req->callback = newSVsv (callback); 2101 req->callback = SvREFCNT_inc (cb_cv);
2102 }
2103}
1731 2104
1732MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2105MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1733 2106
1734void 2107void
1735add (aio_req grp, ...) 2108add (aio_req grp, ...)
1736 PPCODE: 2109 PPCODE:
1737{ 2110{
1738 int i; 2111 int i;
1739 aio_req req;
1740 2112
1741 if (grp->int1 == 2) 2113 if (grp->int1 == 2)
1742 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2114 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743 2115
1744 for (i = 1; i < items; ++i ) 2116 for (i = 1; i < items; ++i )
1745 { 2117 {
2118 aio_req req;
2119
1746 if (GIMME_V != G_VOID) 2120 if (GIMME_V != G_VOID)
1747 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2121 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1748 2122
1749 req = SvAIO_REQ (ST (i)); 2123 req = SvAIO_REQ (ST (i));
1750 2124
1751 if (req) 2125 if (req)
1752 { 2126 eio_grp_add (grp, req);
1753 ++grp->size;
1754 req->grp = grp;
1755
1756 req->grp_prev = 0;
1757 req->grp_next = grp->grp_first;
1758
1759 if (grp->grp_first)
1760 grp->grp_first->grp_prev = req;
1761
1762 grp->grp_first = req;
1763 }
1764 } 2127 }
1765} 2128}
1766 2129
1767void 2130void
1768cancel_subs (aio_req_ornot req) 2131cancel_subs (aio_req_ornot req)
… …
1777 AV *av; 2140 AV *av;
1778 2141
1779 grp->errorno = errno; 2142 grp->errorno = errno;
1780 2143
1781 av = newAV (); 2144 av = newAV ();
2145 av_extend (av, items - 1);
1782 2146
1783 for (i = 1; i < items; ++i ) 2147 for (i = 1; i < items; ++i )
1784 av_push (av, newSVsv (ST (i))); 2148 av_push (av, newSVsv (ST (i)));
1785 2149
1786 SvREFCNT_dec (grp->sv1); 2150 SvREFCNT_dec (grp->sv1);
… …
1793 grp->errorno = errorno; 2157 grp->errorno = errorno;
1794 2158
1795void 2159void
1796limit (aio_req grp, int limit) 2160limit (aio_req grp, int limit)
1797 CODE: 2161 CODE:
1798 grp->int2 = limit; 2162 eio_grp_limit (grp, limit);
1799 aio_grp_feed (grp);
1800 2163
1801void 2164void
1802feed (aio_req grp, SV *callback=&PL_sv_undef) 2165feed (aio_req grp, SV *callback = &PL_sv_undef)
1803 CODE: 2166 CODE:
1804{ 2167{
1805 SvREFCNT_dec (grp->sv2); 2168 SvREFCNT_dec (grp->sv2);
1806 grp->sv2 = newSVsv (callback); 2169 grp->sv2 = newSVsv (callback);
2170 grp->feed = aio_grp_feed;
1807 2171
1808 if (grp->int2 <= 0) 2172 if (grp->int2 <= 0)
1809 grp->int2 = 2; 2173 grp->int2 = 2;
1810 2174
1811 aio_grp_feed (grp); 2175 eio_grp_limit (grp, grp->int2);
1812} 2176}
1813 2177

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