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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.110 by root, Sun Dec 2 20:54:33 2007 UTC vs.
Revision 1.251 by root, Sat Jan 6 01:04:42 2018 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14#include <limits.h> 16#include <limits.h>
15#include <fcntl.h> 17#include <fcntl.h>
16#include <sched.h> 18#include <sched.h>
17 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
18#ifdef _WIN32 47#ifdef _WIN32
19 48
20# define SIGIO 0 49 // perl overrides all those nice libc functions
21 typedef Direntry_t X_DIRENT; 50
22#undef malloc 51 #undef malloc
23#undef free 52 #undef free
24
25// perl overrides all those nice win32 functions
26# undef open 53 #undef open
27# undef read 54 #undef read
28# undef write 55 #undef write
29# undef send 56 #undef send
30# undef recv 57 #undef recv
31# undef stat 58 #undef stat
59 #undef lstat
32# undef fstat 60 #undef fstat
33# define lstat stat
34# undef truncate 61 #undef truncate
35# undef ftruncate 62 #undef ftruncate
36# undef open 63 #undef open
64 #undef link
37# undef close 65 #undef close
38# undef unlink 66 #undef unlink
67 #undef mkdir
39# undef rmdir 68 #undef rmdir
40# undef rename 69 #undef rename
41# undef lseek 70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
42 80
43# define chown(a,b,c) (errno = ENOSYS, -1) 81 #define EIO_STRUCT_STAT struct _stati64
44# define fchown(a,b,c) (errno = ENOSYS, -1) 82 #define EIO_STRUCT_STATI64
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56 83
57#else 84#else
58 85
59# include "autoconf/config.h"
60# include <sys/time.h> 86 #include <sys/time.h>
61# include <sys/select.h> 87 #include <sys/select.h>
62# include <unistd.h> 88 #include <unistd.h>
63# include <utime.h> 89 #include <utime.h>
64# include <signal.h> 90 #include <signal.h>
65 typedef struct dirent X_DIRENT;
66 91
67#endif 92 #define EIO_STRUCT_STAT Stat_t
68 93
69#if HAVE_SENDFILE 94#endif
70# if __linux 95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "libeio/config.h"
110
111#if HAVE_RLIMITS
71# include <sys/sendfile.h> 112 #include <sys/time.h>
72# elif __freebsd
73# include <sys/socket.h> 113 #include <sys/resource.h>
74# include <sys/uio.h> 114#endif
75# elif __hpux 115
76# include <sys/socket.h> 116typedef SV SV8; /* byte-sv, used for argument-checking */
77# elif __solaris /* not yet */ 117typedef int aio_rfd; /* read file desriptor */
78# include <sys/sendfile.h> 118typedef int aio_wfd; /* write file descriptor */
119
120static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
121
122#define EIO_REQ_MEMBERS \
123 SV *callback; \
124 SV *sv1, *sv2; \
125 SV *sv3, *sv4; \
126 STRLEN stroffset; \
127 SV *self;
128
129#define EIO_NO_WRAPPERS 1
130
131#include "libeio/eio.h"
132
133static int req_invoke (eio_req *req);
134#define EIO_FINISH(req) req_invoke (req)
135static void req_destroy (eio_req *grp);
136#define EIO_DESTROY(req) req_destroy (req)
137
138#include "libeio/eio.c"
139
140#if !HAVE_POSIX_FADVISE
141# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
142#endif
143
144#if !HAVE_POSIX_MADVISE
145# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef MAP_ANONYMOUS
149# ifdef MAP_ANON
150# define MAP_ANONYMOUS MAP_ANON
79# else 151# else
80# error sendfile support requested but not available 152# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 153# endif
82#endif 154#endif
83 155
84/* number of seconds after which idle threads exit */ 156/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 157/* also provides const_iv_ and const_niv_ macros for them */
158#include "def0.h"
86 159
87/* used for struct dirent, AIX doesn't provide it */ 160#ifndef makedev
88#ifndef NAME_MAX 161# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 162#endif
91 163#ifndef major
92/* buffer size for various temporary buffers */ 164# define major(dev) ((dev) >> 8)
93#define AIO_BUFSIZE 65536
94
95/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8
97# define SvVAL64 SvIV
98#else
99# define SvVAL64 SvNV
100#endif 165#endif
166#ifndef minor
167# define minor(dev) ((dev) & 0xff)
168#endif
101 169
102static HV *stash; 170#if PAGESIZE <= 0
171# define PAGESIZE sysconf (_SC_PAGESIZE)
172#endif
103 173
104#define dBUF \ 174/*****************************************************************************/
105 char *aio_buf; \ 175
106 X_LOCK (wrklock); \ 176#if !_POSIX_MAPPED_FILES
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 177# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
108 X_UNLOCK (wrklock); \ 178# define munmap(addr,length) EIO_ENOSYS ()
109 if (!aio_buf) \ 179#endif
180
181#if !_POSIX_MEMORY_PROTECTION
182# define mprotect(addr,len,prot) EIO_ENOSYS ()
183#endif
184
185#define FOREIGN_MAGIC PERL_MAGIC_ext
186
187static int ecb_cold
188mmap_free (pTHX_ SV *sv, MAGIC *mg)
189{
190 int old_errno = errno;
191 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
192 errno = old_errno;
193
194 mg->mg_obj = 0; /* just in case */
195
196 SvREADONLY_off (sv);
197
198 if (SvPVX (sv) != mg->mg_ptr)
199 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
200
201 SvCUR_set (sv, 0);
202 SvPVX (sv) = 0;
203 SvOK_off (sv);
204
110 return -1; 205 return 0;
206}
111 207
112typedef SV SV8; /* byte-sv, used for argument-checking */ 208static MGVTBL mmap_vtbl = {
113 209 0, 0, 0, 0, mmap_free
114enum {
115 REQ_QUIT,
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130}; 210};
131 211
132#define AIO_REQ_KLASS "IO::AIO::REQ" 212static int ecb_cold
133#define AIO_GRP_KLASS "IO::AIO::GRP" 213sysfree_free (pTHX_ SV *sv, MAGIC *mg)
134
135typedef struct aio_cb
136{ 214{
137 struct aio_cb *volatile next; 215 free (mg->mg_ptr);
216 mg->mg_obj = 0; /* just in case */
138 217
139 SV *callback; 218 SvREADONLY_off (sv);
140 SV *sv1, *sv2;
141 void *ptr1, *ptr2;
142 off_t offs;
143 size_t size;
144 ssize_t result;
145 double nv1, nv2;
146 219
147 STRLEN stroffset; 220 if (SvPVX (sv) != mg->mg_ptr)
148 int type; 221 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 222
153 unsigned char flags; 223 SvCUR_set (sv, 0);
154 unsigned char pri; 224 SvPVX (sv) = 0;
225 SvOK_off (sv);
155 226
156 SV *self; /* the perl counterpart of this request, if any */ 227 return 0;
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 228}
158} aio_cb;
159 229
160enum { 230static MGVTBL sysfree_vtbl = {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */ 231 0, 0, 0, 0, sysfree_free
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164}; 232};
165 233
166typedef aio_cb *aio_req; 234/*****************************************************************************/
167typedef aio_cb *aio_req_ornot;
168 235
169enum { 236/* helper: set scalar to foreign ptr with custom free */
170 PRI_MIN = -4, 237static void
171 PRI_MAX = 4, 238sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
172
173 DEFAULT_PRI = 0,
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{ 239{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 240 sv_force_normal (sv);
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189 241
190static thread_t main_tid; 242 /* we store the length in mg_obj, as namlen is I32 :/ */
191static int main_sig; 243 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
192static int block_sig_level; 244 ->mg_obj = (SV *)length;
193 245
194void block_sig () 246 SvUPGRADE (sv, SVt_PV); /* nop... */
195{
196 sigset_t ss;
197 247
198 if (block_sig_level++) 248 if (SvLEN (sv))
249 Safefree (SvPVX (sv));
250
251 SvPVX (sv) = (char *)addr;
252 SvCUR_set (sv, length);
253 SvLEN_set (sv, 0);
254 SvPOK_only (sv);
255}
256
257static void
258sv_clear_foreign (SV *sv)
259{
260 /* todo: iterate over magic and only free ours, but of course */
261 /* the perl5porters will call that (correct) behaviour buggy */
262 sv_unmagic (sv, FOREIGN_MAGIC);
263}
264
265/*****************************************************************************/
266
267static void
268fiemap (eio_req *req)
269{
270 req->result = -1;
271
272#if HAVE_FIEMAP
273 /* assume some c99 */
274 struct fiemap *fiemap = 0;
275 size_t end_offset;
276 int count = req->int3;
277
278 req->flags |= EIO_FLAG_PTR1_FREE;
279
280 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
281 /* increase in 3.5kb steps */
282 if (count < 0)
283 count = 8;
284
285 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
286 errno = ENOMEM;
287 if (!fiemap)
199 return; 288 return;
200 289
201 if (!main_sig) 290 req->ptr1 = fiemap;
291
292 fiemap->fm_start = req->offs;
293 fiemap->fm_length = req->size;
294 fiemap->fm_flags = req->int2;
295 fiemap->fm_extent_count = count;
296
297 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
202 return; 298 return;
203 299
204 sigemptyset (&ss); 300 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 301 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 302 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 303 goto done;
208 304
209void unblock_sig () 305 /* else we have to loop -
210{ 306 * it would be tempting (actually I tried that first) to just query the
211 sigset_t ss; 307 * number of extents needed, but linux often feels like not returning all
308 * extents, without telling us it left any out. this complicates
309 * this quite a bit.
310 */
212 311
213 if (--block_sig_level) 312 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 313
216 if (!main_sig) 314 for (;;)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 { 315 {
249 closedir (wrk->dirp); 316 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
250 wrk->dirp = 0; 317 char scratch[3072];
251 } 318 struct fiemap *incmap = (struct fiemap *)scratch;
252 319
253 if (wrk->dbuf) 320 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 321 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 322 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 323 incmap->fm_flags = fiemap->fm_flags;
257 } 324 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 325
260static void worker_free (worker *wrk) 326 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 };
272
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready ()
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending ()
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads ()
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0; 327 return;
355 328
356 --q->size; 329 if (!incmap->fm_mapped_extents)
330 goto done;
357 331
358 for (pri = NUM_PRI; pri--; ) 332 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 333 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 334 errno = ENOMEM;
361
362 if (req) 335 if (!fiemap)
336 return;
337
338 req->ptr1 = fiemap;
339
340 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 341 {
364 if (!(q->qs[pri] = req->next)) 342 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 343
367 return req; 344 if (e->fe_logical + e->fe_length >= end_offset)
345 goto done;
346
347 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
348
349 if (e->fe_flags & FIEMAP_EXTENT_LAST)
350 goto done;
351
368 } 352 }
369 } 353 }
370 354
371 abort (); 355done:
372} 356 req->result = 0;
373 357
374static int poll_cb (); 358#else
375static int req_invoke (aio_req req); 359 errno = ENOSYS;
360#endif
361}
362
363/*****************************************************************************/
364
365enum {
366 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
367};
368
369typedef eio_req *aio_req;
370typedef eio_req *aio_req_ornot;
371typedef eio_wd aio_wd;
372
373static SV *on_next_submit;
374static int next_pri = EIO_PRI_DEFAULT;
375static int max_outstanding;
376
377static s_epipe respipe;
378
376static void req_destroy (aio_req req); 379static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 380static void req_cancel (aio_req req);
378 381
382static void
383want_poll (void)
384{
385 /* write a dummy byte to the pipe so fh becomes ready */
386 s_epipe_signal (&respipe);
387}
388
389static void
390done_poll (void)
391{
392 /* read any signals sent by the worker threads */
393 s_epipe_drain (&respipe);
394}
395
379/* must be called at most once */ 396/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 397static SV *
398req_sv (aio_req req, HV *stash)
381{ 399{
382 if (!req->self) 400 if (!req->self)
383 { 401 {
384 req->self = (SV *)newHV (); 402 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 403 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 404 }
387 405
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 406 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 407}
390 408
391static aio_req SvAIO_REQ (SV *sv) 409static SV *
410newSVaio_wd (aio_wd wd)
411{
412 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
413}
414
415static aio_req
416SvAIO_REQ (SV *sv)
392{ 417{
393 MAGIC *mg; 418 MAGIC *mg;
394 419
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 420 if (!SvROK (sv)
421 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
422 || (SvSTASH (SvRV (sv)) != aio_grp_stash
423 && SvSTASH (SvRV (sv)) != aio_req_stash
424 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 425 croak ("object of class IO::AIO::REQ expected");
397 426
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 427 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 428
400 return mg ? (aio_req)mg->mg_ptr : 0; 429 return mg ? (aio_req)mg->mg_ptr : 0;
401} 430}
402 431
432static aio_wd
433SvAIO_WD (SV *sv)
434{
435 if (!SvROK (sv)
436 || SvTYPE (SvRV (sv)) != SVt_PVMG
437 || SvSTASH (SvRV (sv)) != aio_wd_stash)
438 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
439
440 return (aio_wd)(long)SvIVX (SvRV (sv));
441}
442
443static SV *
444newmortalFH (int fd, int flags)
445{
446 if (fd < 0)
447 return &PL_sv_undef;
448
449 GV *gv = (GV *)sv_newmortal ();
450 char sym[64];
451 int symlen;
452
453 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
454 gv_init (gv, aio_stash, sym, symlen, 0);
455
456 symlen = snprintf (
457 sym,
458 sizeof (sym),
459 "%s&=%d",
460 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461 fd
462 );
463
464 return do_open (gv, sym, symlen, 0, 0, 0, 0)
465 ? (SV *)gv : &PL_sv_undef;
466}
467
468static void
403static void aio_grp_feed (aio_req grp) 469aio_grp_feed (aio_req grp)
404{ 470{
405 block_sig (); 471 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 472 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 473 dSP;
414 474
415 ENTER; 475 ENTER;
416 SAVETMPS; 476 SAVETMPS;
417 PUSHMARK (SP); 477 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 478 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 479 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 480 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 481 SPAGAIN;
422 FREETMPS; 482 FREETMPS;
423 LEAVE; 483 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 484 }
434
435 unblock_sig ();
436} 485}
437 486
438static void aio_grp_dec (aio_req grp) 487static void
488req_submit (eio_req *req)
439{ 489{
440 --grp->size; 490 eio_submit (req);
441 491
442 /* call feeder, if applicable */ 492 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 493 {
448 block_sig (); 494 dSP;
495 SV *cb = sv_2mortal (on_next_submit);
449 496
450 if (!req_invoke (grp)) 497 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 498
457 req_destroy (grp); 499 PUSHMARK (SP);
458 unblock_sig (); 500 PUTBACK;
501 call_sv (cb, G_DISCARD | G_EVAL);
459 } 502 }
460} 503}
461 504
505static int
462static int req_invoke (aio_req req) 506req_invoke (eio_req *req)
463{ 507{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 508 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 509 SvREADONLY_off (req->sv2);
468 510
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 511 if (!EIO_CANCELLED (req) && req->callback)
470 { 512 {
513 dSP;
514 static SV *sv_result_cache; /* caches the result integer SV */
515 SV *sv_result;
516
471 ENTER; 517 ENTER;
472 SAVETMPS; 518 SAVETMPS;
473 PUSHMARK (SP); 519 PUSHMARK (SP);
474 EXTEND (SP, 1); 520 EXTEND (SP, 1);
475 521
522 /* do not recreate the result IV from scratch each time */
523 if (expect_true (sv_result_cache))
524 {
525 sv_result = sv_result_cache; sv_result_cache = 0;
526 SvIV_set (sv_result, req->result);
527 SvIOK_only (sv_result);
528 }
529 else
530 {
531 sv_result = newSViv (req->result);
532 SvREADONLY_on (sv_result);
533 }
534
476 switch (req->type) 535 switch (req->type)
477 { 536 {
537 case EIO_WD_OPEN:
538 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
539 break;
540
478 case REQ_READDIR: 541 case EIO_READDIR:
479 { 542 {
480 SV *rv = &PL_sv_undef; 543 SV *rv = &PL_sv_undef;
481 544
482 if (req->result >= 0) 545 if (req->result >= 0)
483 { 546 {
484 int i; 547 int i;
485 char *buf = req->ptr2; 548 char *names = (char *)req->ptr2;
549 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 550 AV *av = newAV ();
487 551
488 av_extend (av, req->result - 1); 552 av_extend (av, req->result - 1);
489 553
490 for (i = 0; i < req->result; ++i) 554 for (i = 0; i < req->result; ++i)
491 { 555 {
492 SV *sv = newSVpv (buf, 0); 556 if (req->int1 & EIO_READDIR_DENTS)
557 {
558 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 559
560 if (req->int1 & EIO_READDIR_CUSTOM2)
561 {
562 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
563 AV *avent = newAV ();
564
565 av_extend (avent, 2);
566
567 if (!sv_type [ent->type])
568 {
569 sv_type [ent->type] = newSViv (ent->type);
570 SvREADONLY_on (sv_type [ent->type]);
571 }
572
573 av_store (avent, 0, namesv);
574 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
575 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
576
577 av_store (av, i, newRV_noinc ((SV *)avent));
578 }
579 else
494 av_store (av, i, sv); 580 av_store (av, i, namesv);
581
582 ++ent;
583 }
584 else
585 {
586 SV *name = newSVpv (names, 0);
587 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 588 names += SvCUR (name) + 1;
589 }
496 } 590 }
497 591
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 592 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 593 }
500 594
501 PUSHs (rv); 595 PUSHs (rv);
596
597 if (req->int1 & EIO_READDIR_CUSTOM1)
598 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 599 }
503 break; 600 break;
504 601
505 case REQ_OPEN: 602 case EIO_OPEN:
603 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
604 break;
605
606 case EIO_STATVFS:
607 case EIO_FSTATVFS:
506 { 608 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 609 SV *rv = &PL_sv_undef;
509 610
611#ifndef _WIN32
510 if (req->result >= 0) 612 if (req->result >= 0)
511 { 613 {
614 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 615 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 616 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 617 * chooses to make it a struct.
515 int symlen;
516 618 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 619 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 620 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 621
520 symlen = snprintf ( 622 rv = sv_2mortal (newRV_noinc ((SV *)hv));
521 sym,
522 sizeof (sym),
523 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 req->result
526 );
527 623
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 624 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 625 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
626 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
627 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
628 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
629 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
630 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
631 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
632 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
633 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
634 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
530 } 635 }
636#endif
531 637
532 PUSHs (fh); 638 PUSHs (rv);
533 } 639 }
640
534 break; 641 break;
535 642
536 case REQ_GROUP: 643 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 644 req->int1 = 2; /* mark group as finished */
538 645
539 if (req->sv1) 646 if (req->sv1)
540 { 647 {
541 int i; 648 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 652 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 653 PUSHs (*av_fetch (av, i, 0));
547 } 654 }
548 break; 655 break;
549 656
550 case REQ_NOP: 657 case EIO_NOP:
551 case REQ_BUSY: 658 case EIO_BUSY:
552 break; 659 break;
553 660
554 case REQ_READLINK: 661 case EIO_READLINK:
662 case EIO_REALPATH:
555 if (req->result > 0) 663 if (req->result > 0)
664 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
665 break;
666
667 case EIO_STAT:
668 case EIO_LSTAT:
669 case EIO_FSTAT:
670 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
671
672 if (!(PL_laststatval = req->result))
673 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
674 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
675
676 PUSHs (sv_result);
677 break;
678
679 case EIO_SEEK:
680 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
681 break;
682
683 case EIO_READ:
684 {
685 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
686 *SvEND (req->sv2) = 0;
687 SvPOK_only (req->sv2);
688 SvSETMAGIC (req->sv2);
689 PUSHs (sv_result);
690 }
691 break;
692
693 case EIO_SLURP:
694 {
695 if (req->result >= 0)
696 {
697 /* if length was originally not known, we steal the malloc'ed memory */
698 if (req->flags & EIO_FLAG_PTR2_FREE)
699 {
700 req->flags &= ~EIO_FLAG_PTR2_FREE;
701 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
702 }
703 else
704 SvCUR_set (req->sv2, req->result);
705 }
706
707 PUSHs (sv_result);
708 }
709 break;
710
711 case EIO_CUSTOM:
712 if (req->feed == fiemap)
556 { 713 {
557 SvCUR_set (req->sv2, req->result); 714#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 715 if (!req->result)
716 {
717 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
718
719 if (fiemap->fm_extent_count)
720 {
721 AV *av = newAV ();
722 int i;
723
724 while (fiemap->fm_mapped_extents)
725 {
726 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
727 AV *ext_av = newAV ();
728
729 av_store (ext_av, 3, newSVuv (extent->fe_flags));
730 av_store (ext_av, 2, newSVval64 (extent->fe_length));
731 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
732 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
733
734 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
735 }
736
737 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
738 }
739 else
740 {
741 SvIV_set (sv_result, fiemap->fm_mapped_extents);
742 PUSHs (sv_result);
743 }
744 }
745#endif
560 } 746 }
747 else
748 PUSHs (sv_result);
561 break; 749 break;
562 750
563 case REQ_STAT: 751 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
564 case REQ_LSTAT: 752 if (req->result > 0)
565 case REQ_FSTAT: 753 SvIV_set (sv_result, 0);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 754 /* FALLTHROUGH */
567 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result)));
570 break;
571
572 case REQ_READ:
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result)));
576 break;
577 755
578 default: 756 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 757 PUSHs (sv_result);
580 break; 758 break;
581 } 759 }
582 760
583 errno = req->errorno; 761 errno = req->errorno;
584 762
585 PUTBACK; 763 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 764 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 765 SPAGAIN;
588 766
767 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
768 SvREFCNT_dec (sv_result);
769 else
770 sv_result_cache = sv_result;
771
589 FREETMPS; 772 FREETMPS;
590 LEAVE; 773 LEAVE;
591 774
592 PUTBACK; 775 PUTBACK;
593 } 776 }
594 777
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 778 return !!SvTRUE (ERRSV);
610} 779}
611 780
781static void
612static void req_destroy (aio_req req) 782req_destroy (aio_req req)
613{ 783{
614 if (req->self) 784 if (req->self)
615 { 785 {
616 sv_unmagic (req->self, PERL_MAGIC_ext); 786 sv_unmagic (req->self, PERL_MAGIC_ext);
617 SvREFCNT_dec (req->self); 787 SvREFCNT_dec (req->self);
618 } 788 }
619 789
620 SvREFCNT_dec (req->sv1); 790 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 791 SvREFCNT_dec (req->sv2);
792 SvREFCNT_dec (req->sv3);
793 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 794 SvREFCNT_dec (req->callback);
623 795
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 796 free (req);
628} 797}
629 798
799static void
630static void req_cancel_subs (aio_req grp) 800req_cancel_subs (aio_req grp)
631{ 801{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 802 if (grp->type != EIO_GROUP)
635 return; 803 return;
636 804
637 SvREFCNT_dec (grp->sv2); 805 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 806 grp->sv2 = 0;
639 807
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 808 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 809}
643 810
644static void req_cancel (aio_req req) 811static void ecb_cold
812create_respipe (void)
645{ 813{
646 req->flags |= FLAG_CANCELLED; 814 if (s_epipe_renew (&respipe))
647 815 croak ("IO::AIO: unable to initialize result pipe");
648 req_cancel_subs (req);
649} 816}
650
651#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else
654# define TO_SOCKET(x) (x)
655#endif
656 817
657static void 818static void
658create_respipe () 819poll_wait (void)
659{ 820{
660 int old_readfd = respipe [0];
661
662 if (respipe [1] >= 0)
663 respipe_close (TO_SOCKET (respipe [1]));
664
665#ifdef _WIN32
666 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
667#else
668 if (pipe (respipe))
669#endif
670 croak ("unable to initialize result pipe");
671
672 if (old_readfd >= 0)
673 {
674 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
675 croak ("unable to initialize result pipe(2)");
676
677 respipe_close (respipe [0]);
678 respipe [0] = old_readfd;
679 }
680
681#ifdef _WIN32
682 int arg = 1;
683 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
684 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
685#else
686 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
687 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
688#endif
689 croak ("unable to initialize result pipe(3)");
690
691 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]);
693}
694
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread ()
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788}
789
790static void poll_wait ()
791{
792 fd_set rfd;
793
794 while (nreqs) 821 while (eio_nreqs ())
795 { 822 {
796 int size; 823 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 824
825 X_LOCK (EIO_POOL->reslock);
798 size = res_queue.size; 826 size = EIO_POOL->res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 827 X_UNLOCK (EIO_POOL->reslock);
800 828
801 if (size) 829 if (size)
802 return; 830 return;
803 831
804 maybe_start_thread (); 832 etp_maybe_start_thread (EIO_POOL);
805 833
806 FD_ZERO (&rfd); 834 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 835 }
811} 836}
812 837
813static int poll_cb () 838static int
839poll_cb (void)
814{ 840{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 841 for (;;)
828 { 842 {
829 for (;;) 843 int res = eio_poll ();
844
845 if (res > 0)
846 croak (0);
847
848 if (!max_outstanding || max_outstanding > eio_nreqs ())
849 return res;
850
851 poll_wait ();
852 }
853}
854
855static void ecb_cold
856reinit (void)
857{
858 create_respipe ();
859
860 if (eio_init (want_poll, done_poll) < 0)
861 croak ("IO::AIO: unable to initialise eio library");
862}
863
864/*****************************************************************************/
865
866static SV *
867get_cb (SV *cb_sv)
868{
869 SvGETMAGIC (cb_sv);
870 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
871}
872
873static aio_req ecb_noinline
874dreq (SV *callback)
875{
876 SV *cb_cv;
877 aio_req req;
878 int req_pri = next_pri;
879 next_pri = EIO_PRI_DEFAULT;
880
881 cb_cv = get_cb (callback);
882
883 req = calloc (sizeof (*req), 1);
884 if (!req)
885 croak ("out of memory during eio_req allocation");
886
887 req->callback = SvREFCNT_inc (cb_cv);
888 req->pri = req_pri;
889
890 return req;
891}
892
893#define dREQ \
894 aio_req req = dreq (callback); \
895
896#define REQ_SEND \
897 PUTBACK; \
898 req_submit (req); \
899 SPAGAIN; \
900 \
901 if (GIMME_V != G_VOID) \
902 XPUSHs (req_sv (req, aio_req_stash));
903
904ecb_inline void
905req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
906{
907 if (expect_false (SvROK (path)))
908 {
909 SV *rv = SvRV (path);
910 SV *wdob;
911
912 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
830 { 913 {
831 maybe_start_thread (); 914 path = AvARRAY (rv)[1];
915 wdob = AvARRAY (rv)[0];
832 916
833 X_LOCK (reslock); 917 if (SvOK (wdob))
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 { 918 {
838 --npending; 919 *wd = SvAIO_WD (wdob);
839 920 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 } 921 }
861 else 922 else
862 { 923 *wd = EIO_INVALID_WD;
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0);
868 }
869
870 count++;
871 }
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 } 924 }
925 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
926 {
927 *wd = (aio_wd)(long)SvIVX (rv);
928 *wdsv = SvREFCNT_inc_NN (rv);
929 *ptr = ".";
930 return; /* path set to "." */
931 }
932 else
933 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
934 }
886 935
887 if (nreqs <= max_outstanding) 936 *pathsv = newSVsv (path);
937 *ptr = SvPVbyte_nolen (*pathsv);
938}
939
940static void ecb_noinline
941req_set_path1 (aio_req req, SV *path)
942{
943 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
944}
945
946static void ecb_noinline
947req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
948{
949 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
950
951 switch (SvTYPE (rv))
952 {
953 case SVt_PVIO:
954 case SVt_PVLV:
955 case SVt_PVGV:
956 req->type = type_fh;
957 req->sv1 = newSVsv (fh_or_path);
958 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
888 break; 959 break;
889 960
890 poll_wait (); 961 default:
891 962 req->type = type_path;
892 ++maxreqs; 963 req_set_path1 (req, fh_or_path);
964 break;
893 } 965 }
894
895 unblock_sig ();
896 return count;
897} 966}
898 967
899/*****************************************************************************/ 968XS(boot_IO__AIO) ecb_cold;
900/* work around various missing functions */
901 969
902#if !HAVE_PREADWRITE
903# define pread aio_pread
904# define pwrite aio_pwrite
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{
915 ssize_t res;
916 off_t ooffset;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926}
927
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
929{
930 ssize_t res;
931 off_t ooffset;
932
933 X_LOCK (preadwritelock);
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941}
942#endif
943
944#ifndef HAVE_FUTIMES
945
946# define utimes(path,times) aio_utimes (path, times)
947# define futimes(fd,times) aio_futimes (fd, times)
948
949int aio_utimes (const char *filename, const struct timeval times[2])
950{
951 if (times)
952 {
953 struct utimbuf buf;
954
955 buf.actime = times[0].tv_sec;
956 buf.modtime = times[1].tv_sec;
957
958 return utime (filename, &buf);
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{
966 errno = ENOSYS;
967 return -1;
968}
969
970#endif
971
972#if !HAVE_FDATASYNC
973# define fdatasync fsync
974#endif
975
976#if !HAVE_READAHEAD
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
978
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
980{
981 size_t todo = count;
982 dBUF;
983
984 while (todo > 0)
985 {
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987
988 pread (fd, aio_buf, len, offset);
989 offset += len;
990 todo -= len;
991 }
992
993 errno = 0;
994 return count;
995}
996
997#endif
998
999#if !HAVE_READDIR_R
1000# define readdir_r aio_readdir_r
1001
1002static mutex_t readdirlock = X_MUTEX_INIT;
1003
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1005{
1006 X_DIRENT *e;
1007 int errorno;
1008
1009 X_LOCK (readdirlock);
1010
1011 e = readdir (dirp);
1012 errorno = errno;
1013
1014 if (e)
1015 {
1016 *res = ent;
1017 strcpy (ent->d_name, e->d_name);
1018 }
1019 else
1020 *res = 0;
1021
1022 X_UNLOCK (readdirlock);
1023
1024 errno = errorno;
1025 return e ? 0 : -1;
1026}
1027#endif
1028
1029/* sendfile always needs emulation */
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1031{
1032 ssize_t res;
1033
1034 if (!count)
1035 return 0;
1036
1037#if HAVE_SENDFILE
1038# if __linux
1039 res = sendfile (ofd, ifd, &offset, count);
1040
1041# elif __freebsd
1042 /*
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts
1044 * wasted on making it similar to other I/O functions.
1045 */
1046 {
1047 off_t sbytes;
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049
1050 if (res < 0 && sbytes)
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1052 res = sbytes;
1053 }
1054
1055# elif __hpux
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079
1080 if (res < 0
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1082#if __solaris
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090
1091 res = 0;
1092
1093 while (count)
1094 {
1095 ssize_t cnt;
1096
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099 if (cnt <= 0)
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104
1105 cnt = write (ofd, aio_buf, cnt);
1106
1107 if (cnt <= 0)
1108 {
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112
1113 offset += cnt;
1114 res += cnt;
1115 count -= cnt;
1116 }
1117 }
1118
1119 return res;
1120}
1121
1122/* read a full directory */
1123static void scandir_ (aio_req req, worker *self)
1124{
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181}
1182
1183/*****************************************************************************/
1184
1185X_THREAD_PROC (aio_proc)
1186{
1187 {//D
1188 aio_req req;
1189 struct timespec ts;
1190 worker *self = (worker *)thr_arg;
1191
1192 /* try to distribute timeouts somewhat randomly */
1193 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1194
1195 for (;;)
1196 {
1197 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1198
1199 X_LOCK (reqlock);
1200
1201 for (;;)
1202 {
1203 self->req = req = reqq_shift (&req_queue);
1204
1205 if (req)
1206 break;
1207
1208 ++idle;
1209
1210 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1211 == ETIMEDOUT)
1212 {
1213 if (idle > max_idle)
1214 {
1215 --idle;
1216 X_UNLOCK (reqlock);
1217 X_LOCK (wrklock);
1218 --started;
1219 X_UNLOCK (wrklock);
1220 goto quit;
1221 }
1222
1223 /* we are allowed to idle, so do so without any timeout */
1224 X_COND_WAIT (reqwait, reqlock);
1225 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1226 }
1227
1228 --idle;
1229 }
1230
1231 --nready;
1232
1233 X_UNLOCK (reqlock);
1234
1235 errno = 0; /* strictly unnecessary */
1236
1237 if (!(req->flags & FLAG_CANCELLED))
1238 switch (req->type)
1239 {
1240 case REQ_READ: req->result = req->offs >= 0
1241 ? pread (req->int1, req->ptr1, req->size, req->offs)
1242 : read (req->int1, req->ptr1, req->size); break;
1243 case REQ_WRITE: req->result = req->offs >= 0
1244 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1245 : write (req->int1, req->ptr1, req->size); break;
1246
1247 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1248 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1249
1250 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1251 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1252 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1253
1254 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1255 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1256 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1257 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1258 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1259 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1260
1261 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1262 case REQ_CLOSE: req->result = close (req->int1); break;
1263 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1264 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1265 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1266 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1267 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1268 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1269 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1270 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1271
1272 case REQ_SYNC: req->result = 0; sync (); break;
1273 case REQ_FSYNC: req->result = fsync (req->int1); break;
1274 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1275
1276 case REQ_READDIR: scandir_ (req, self); break;
1277
1278 case REQ_BUSY:
1279#ifdef _WIN32
1280 Sleep (req->nv1 * 1000.);
1281#else
1282 {
1283 struct timeval tv;
1284
1285 tv.tv_sec = req->nv1;
1286 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1287
1288 req->result = select (0, 0, 0, 0, &tv);
1289 }
1290#endif
1291 break;
1292
1293 case REQ_UTIME:
1294 case REQ_FUTIME:
1295 {
1296 struct timeval tv[2];
1297 struct timeval *times;
1298
1299 if (req->nv1 != -1. || req->nv2 != -1.)
1300 {
1301 tv[0].tv_sec = req->nv1;
1302 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1303 tv[1].tv_sec = req->nv2;
1304 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1305
1306 times = tv;
1307 }
1308 else
1309 times = 0;
1310
1311
1312 req->result = req->type == REQ_FUTIME
1313 ? futimes (req->int1, times)
1314 : utimes (req->ptr1, times);
1315 }
1316
1317 case REQ_GROUP:
1318 case REQ_NOP:
1319 break;
1320
1321 case REQ_QUIT:
1322 goto quit;
1323
1324 default:
1325 req->result = -1;
1326 break;
1327 }
1328
1329 req->errorno = errno;
1330
1331 X_LOCK (reslock);
1332
1333 ++npending;
1334
1335 if (!reqq_push (&res_queue, req))
1336 {
1337 /* write a dummy byte to the pipe so fh becomes ready */
1338 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1339
1340 /* optionally signal the main thread asynchronously */
1341 if (main_sig)
1342 pthread_kill (main_tid, main_sig);
1343 }
1344
1345 self->req = 0;
1346 worker_clear (self);
1347
1348 X_UNLOCK (reslock);
1349 }
1350
1351quit:
1352 X_LOCK (wrklock);
1353 worker_free (self);
1354 X_UNLOCK (wrklock);
1355
1356 return 0;
1357 }//D
1358}
1359
1360/*****************************************************************************/
1361
1362static void atfork_prepare (void)
1363{
1364 X_LOCK (wrklock);
1365 X_LOCK (reqlock);
1366 X_LOCK (reslock);
1367#if !HAVE_PREADWRITE
1368 X_LOCK (preadwritelock);
1369#endif
1370#if !HAVE_READDIR_R
1371 X_LOCK (readdirlock);
1372#endif
1373}
1374
1375static void atfork_parent (void)
1376{
1377#if !HAVE_READDIR_R
1378 X_UNLOCK (readdirlock);
1379#endif
1380#if !HAVE_PREADWRITE
1381 X_UNLOCK (preadwritelock);
1382#endif
1383 X_UNLOCK (reslock);
1384 X_UNLOCK (reqlock);
1385 X_UNLOCK (wrklock);
1386}
1387
1388static void atfork_child (void)
1389{
1390 aio_req prv;
1391
1392 while (prv = reqq_shift (&req_queue))
1393 req_destroy (prv);
1394
1395 while (prv = reqq_shift (&res_queue))
1396 req_destroy (prv);
1397
1398 while (wrk_first.next != &wrk_first)
1399 {
1400 worker *wrk = wrk_first.next;
1401
1402 if (wrk->req)
1403 req_destroy (wrk->req);
1404
1405 worker_clear (wrk);
1406 worker_free (wrk);
1407 }
1408
1409 started = 0;
1410 idle = 0;
1411 nreqs = 0;
1412 nready = 0;
1413 npending = 0;
1414
1415 create_respipe ();
1416
1417 atfork_parent ();
1418}
1419
1420#define dREQ \
1421 aio_req req; \
1422 int req_pri = next_pri; \
1423 next_pri = DEFAULT_PRI + PRI_BIAS; \
1424 \
1425 if (SvOK (callback) && !SvROK (callback)) \
1426 croak ("callback must be undef or of reference type"); \
1427 \
1428 Newz (0, req, 1, aio_cb); \
1429 if (!req) \
1430 croak ("out of memory during aio_req allocation"); \
1431 \
1432 req->callback = newSVsv (callback); \
1433 req->pri = req_pri
1434
1435#define REQ_SEND \
1436 req_send (req); \
1437 \
1438 if (GIMME_V != G_VOID) \
1439 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1440
1441MODULE = IO::AIO PACKAGE = IO::AIO 970MODULE = IO::AIO PACKAGE = IO::AIO
1442 971
1443PROTOTYPES: ENABLE 972PROTOTYPES: ENABLE
1444 973
1445BOOT: 974BOOT:
1446{ 975{
976 static const struct {
977 const char *name;
978 IV iv;
979 } *civ, const_iv[] = {
980# define const_niv(name, value) { # name, (IV) value },
981# define const_iv(name) { # name, (IV) name },
982# define const_eio(name) { # name, (IV) EIO_ ## name },
983
984 /* you have to re-run ./gendef0 after adding/removing any constants here */
985 /* the first block can be undef if missing */
986 const_iv (ENOSYS)
987 const_iv (EXDEV)
988 const_iv (EBADR)
989
990 /* for lseek */
991 const_iv (SEEK_DATA)
992 const_iv (SEEK_HOLE)
993
994 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
995 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
996 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
997 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
998 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
999 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1000
1001 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1002 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1003 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1004 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1005 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1006
1007 /* the second block will be 0 when missing */
1008 const_iv (O_RDONLY)
1009 const_iv (O_WRONLY)
1010 const_iv (O_RDWR)
1011 const_iv (O_CREAT)
1012 const_iv (O_TRUNC)
1013 const_iv (O_EXCL)
1014 const_iv (O_APPEND)
1015
1016 const_iv (O_ASYNC)
1017 const_iv (O_DIRECT)
1018 const_iv (O_NOATIME)
1019
1020 const_iv (O_CLOEXEC)
1021 const_iv (O_NOCTTY)
1022 const_iv (O_NOFOLLOW)
1023 const_iv (O_NONBLOCK)
1024 const_iv (O_EXEC)
1025 const_iv (O_SEARCH)
1026 const_iv (O_DIRECTORY)
1027 const_iv (O_DSYNC)
1028 const_iv (O_RSYNC)
1029 const_iv (O_SYNC)
1030 const_iv (O_PATH)
1031 const_iv (O_TMPFILE)
1032 const_iv (O_TTY_INIT)
1033
1034 const_iv (S_IFIFO)
1035 const_iv (S_IFCHR)
1036 const_iv (S_IFBLK)
1037 const_iv (S_IFLNK)
1038 const_iv (S_IFREG)
1039 const_iv (S_IFDIR)
1040 const_iv (S_IFWHT)
1041 const_iv (S_IFSOCK)
1042 const_iv (S_IFMT)
1043
1044 const_iv (ST_RDONLY)
1045 const_iv (ST_NOSUID)
1046 const_iv (ST_NODEV)
1047 const_iv (ST_NOEXEC)
1048 const_iv (ST_SYNCHRONOUS)
1049 const_iv (ST_MANDLOCK)
1050 const_iv (ST_WRITE)
1051 const_iv (ST_APPEND)
1052 const_iv (ST_IMMUTABLE)
1053 const_iv (ST_NOATIME)
1054 const_iv (ST_NODIRATIME)
1055 const_iv (ST_RELATIME)
1056
1057 const_iv (PROT_NONE)
1058 const_iv (PROT_EXEC)
1059 const_iv (PROT_READ)
1060 const_iv (PROT_WRITE)
1061
1062 const_iv (MAP_PRIVATE)
1063 const_iv (MAP_SHARED)
1064 const_iv (MAP_FIXED)
1065 const_iv (MAP_ANONYMOUS)
1066
1067 /* linuxish */
1068 const_iv (MAP_LOCKED)
1069 const_iv (MAP_NORESERVE)
1070 const_iv (MAP_POPULATE)
1071 const_iv (MAP_NONBLOCK)
1072 const_iv (MAP_GROWSDOWN)
1073 const_iv (MAP_32BIT)
1074 const_iv (MAP_HUGETLB)
1075 const_iv (MAP_STACK)
1076
1077 const_iv (F_DUPFD_CLOEXEC)
1078
1079 const_iv (F_OFD_GETLK)
1080 const_iv (F_OFD_SETLK)
1081 const_iv (F_OFD_GETLKW)
1082
1083 const_iv (FIFREEZE)
1084 const_iv (FITHAW)
1085 const_iv (FITRIM)
1086 const_iv (FICLONE)
1087 const_iv (FICLONERANGE)
1088 const_iv (FIDEDUPERANGE)
1089
1090 const_iv (FS_IOC_GETFLAGS)
1091 const_iv (FS_IOC_SETFLAGS)
1092 const_iv (FS_IOC_GETVERSION)
1093 const_iv (FS_IOC_SETVERSION)
1094 const_iv (FS_IOC_FIEMAP)
1095 const_iv (FS_IOC_FSGETXATTR)
1096 const_iv (FS_IOC_FSSETXATTR)
1097 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1098 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1099 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1100
1101 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1102
1103 const_iv (FS_SECRM_FL)
1104 const_iv (FS_UNRM_FL)
1105 const_iv (FS_COMPR_FL)
1106 const_iv (FS_SYNC_FL)
1107 const_iv (FS_IMMUTABLE_FL)
1108 const_iv (FS_APPEND_FL)
1109 const_iv (FS_NODUMP_FL)
1110 const_iv (FS_NOATIME_FL)
1111 const_iv (FS_DIRTY_FL)
1112 const_iv (FS_COMPRBLK_FL)
1113 const_iv (FS_NOCOMP_FL)
1114 const_iv (FS_ENCRYPT_FL)
1115 const_iv (FS_BTREE_FL)
1116 const_iv (FS_INDEX_FL)
1117 const_iv (FS_JOURNAL_DATA_FL)
1118 const_iv (FS_NOTAIL_FL)
1119 const_iv (FS_DIRSYNC_FL)
1120 const_iv (FS_TOPDIR_FL)
1121 const_iv (FS_FL_USER_MODIFIABLE)
1122
1123 const_iv (FS_XFLAG_REALTIME)
1124 const_iv (FS_XFLAG_PREALLOC)
1125 const_iv (FS_XFLAG_IMMUTABLE)
1126 const_iv (FS_XFLAG_APPEND)
1127 const_iv (FS_XFLAG_SYNC)
1128 const_iv (FS_XFLAG_NOATIME)
1129 const_iv (FS_XFLAG_NODUMP)
1130 const_iv (FS_XFLAG_RTINHERIT)
1131 const_iv (FS_XFLAG_PROJINHERIT)
1132 const_iv (FS_XFLAG_NOSYMLINKS)
1133 const_iv (FS_XFLAG_EXTSIZE)
1134 const_iv (FS_XFLAG_EXTSZINHERIT)
1135 const_iv (FS_XFLAG_NODEFRAG)
1136 const_iv (FS_XFLAG_FILESTREAM)
1137 const_iv (FS_XFLAG_DAX)
1138 const_iv (FS_XFLAG_HASATTR)
1139
1140 const_iv (FIEMAP_FLAG_SYNC)
1141 const_iv (FIEMAP_FLAG_XATTR)
1142 const_iv (FIEMAP_FLAGS_COMPAT)
1143 const_iv (FIEMAP_EXTENT_LAST)
1144 const_iv (FIEMAP_EXTENT_UNKNOWN)
1145 const_iv (FIEMAP_EXTENT_DELALLOC)
1146 const_iv (FIEMAP_EXTENT_ENCODED)
1147 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1148 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1149 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1150 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1151 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1152 const_iv (FIEMAP_EXTENT_MERGED)
1153 const_iv (FIEMAP_EXTENT_SHARED)
1154
1155 const_iv (SPLICE_F_MOVE)
1156 const_iv (SPLICE_F_NONBLOCK)
1157 const_iv (SPLICE_F_MORE)
1158 const_iv (SPLICE_F_GIFT)
1159
1160 /* these are libeio constants, and are independent of gendef0 */
1161 const_eio (SEEK_SET)
1162 const_eio (SEEK_CUR)
1163 const_eio (SEEK_END)
1164
1165 const_eio (MCL_FUTURE)
1166 const_eio (MCL_CURRENT)
1167
1168 const_eio (MS_ASYNC)
1169 const_eio (MS_INVALIDATE)
1170 const_eio (MS_SYNC)
1171
1172 const_eio (MT_MODIFY)
1173
1174 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1175 const_eio (SYNC_FILE_RANGE_WRITE)
1176 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1177
1178 const_eio (FALLOC_FL_KEEP_SIZE)
1179 const_eio (FALLOC_FL_PUNCH_HOLE)
1180 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1181 const_eio (FALLOC_FL_ZERO_RANGE)
1182 const_eio (FALLOC_FL_INSERT_RANGE)
1183 const_eio (FALLOC_FL_UNSHARE_RANGE)
1184
1185 const_eio (RENAME_NOREPLACE)
1186 const_eio (RENAME_EXCHANGE)
1187 const_eio (RENAME_WHITEOUT)
1188
1189 const_eio (READDIR_DENTS)
1190 const_eio (READDIR_DIRS_FIRST)
1191 const_eio (READDIR_STAT_ORDER)
1192 const_eio (READDIR_FOUND_UNKNOWN)
1193
1194 const_eio (DT_UNKNOWN)
1195 const_eio (DT_FIFO)
1196 const_eio (DT_CHR)
1197 const_eio (DT_DIR)
1198 const_eio (DT_BLK)
1199 const_eio (DT_REG)
1200 const_eio (DT_LNK)
1201 const_eio (DT_SOCK)
1202 const_eio (DT_WHT)
1203 };
1204
1447 stash = gv_stashpv ("IO::AIO", 1); 1205 aio_stash = gv_stashpv ("IO::AIO" , 1);
1206 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1207 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1208 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1448 1209
1449 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1210 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1450 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1211 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1451 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1452 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1453 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1454#ifdef _WIN32
1455 X_MUTEX_CHECK (wrklock);
1456 X_MUTEX_CHECK (reslock);
1457 X_MUTEX_CHECK (reqlock);
1458 X_MUTEX_CHECK (reqwait);
1459 X_MUTEX_CHECK (preadwritelock);
1460 X_MUTEX_CHECK (readdirlock);
1461 1212
1462 X_COND_CHECK (reqwait); 1213 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1463#else
1464 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1465 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1466#endif
1467 1214
1468 create_respipe (); 1215 reinit ();
1469
1470 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1471} 1216}
1472 1217
1473void 1218void
1219reinit ()
1220 PROTOTYPE:
1221
1222void
1474max_poll_reqs (int nreqs) 1223max_poll_reqs (unsigned int nreqs)
1475 PROTOTYPE: $ 1224 PROTOTYPE: $
1476 CODE: 1225 CODE:
1477 max_poll_reqs = nreqs; 1226 eio_set_max_poll_reqs (nreqs);
1478 1227
1479void 1228void
1480max_poll_time (double nseconds) 1229max_poll_time (double nseconds)
1481 PROTOTYPE: $ 1230 PROTOTYPE: $
1482 CODE: 1231 CODE:
1483 max_poll_time = nseconds * AIO_TICKS; 1232 eio_set_max_poll_time (nseconds);
1484 1233
1485void 1234void
1486min_parallel (int nthreads) 1235min_parallel (unsigned int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_parallel (int nthreads)
1491 PROTOTYPE: $
1492
1493void
1494max_idle (int nthreads)
1495 PROTOTYPE: $ 1236 PROTOTYPE: $
1496 CODE: 1237 CODE:
1497 set_max_idle (nthreads); 1238 eio_set_min_parallel (nthreads);
1498 1239
1499int 1240void
1500max_outstanding (int maxreqs) 1241max_parallel (unsigned int nthreads)
1501 PROTOTYPE: $ 1242 PROTOTYPE: $
1502 CODE: 1243 CODE:
1503 RETVAL = max_outstanding; 1244 eio_set_max_parallel (nthreads);
1245
1246void
1247max_idle (unsigned int nthreads)
1248 PROTOTYPE: $
1249 CODE:
1250 eio_set_max_idle (nthreads);
1251
1252void
1253idle_timeout (unsigned int seconds)
1254 PROTOTYPE: $
1255 CODE:
1256 eio_set_idle_timeout (seconds);
1257
1258void
1259max_outstanding (unsigned int maxreqs)
1260 PROTOTYPE: $
1261 CODE:
1504 max_outstanding = maxreqs; 1262 max_outstanding = maxreqs;
1505 OUTPUT:
1506 RETVAL
1507 1263
1508void 1264void
1509aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1265aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1510 PROTOTYPE: $$$;$
1511 PPCODE: 1266 PPCODE:
1512{ 1267{
1513 dREQ; 1268 dREQ;
1514 1269
1270 req->type = EIO_WD_OPEN;
1271 req_set_path1 (req, pathname);
1272
1273 REQ_SEND;
1274}
1275
1276void
1277aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1278 PPCODE:
1279{
1280 dREQ;
1281
1515 req->type = REQ_OPEN; 1282 req->type = EIO_OPEN;
1516 req->sv1 = newSVsv (pathname); 1283 req_set_path1 (req, pathname);
1517 req->ptr1 = SvPVbyte_nolen (req->sv1);
1518 req->int1 = flags; 1284 req->int1 = flags;
1519 req->mode = mode; 1285 req->int2 = mode;
1520 1286
1521 REQ_SEND; 1287 REQ_SEND;
1522} 1288}
1523 1289
1524void 1290void
1525aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1291aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1526 PROTOTYPE: $;$
1527 ALIAS: 1292 ALIAS:
1528 aio_fsync = REQ_FSYNC 1293 aio_fsync = EIO_FSYNC
1529 aio_fdatasync = REQ_FDATASYNC 1294 aio_fdatasync = EIO_FDATASYNC
1295 aio_syncfs = EIO_SYNCFS
1530 PPCODE: 1296 PPCODE:
1531{ 1297{
1298 int fd = s_fileno_croak (fh, 0);
1532 dREQ; 1299 dREQ;
1533 1300
1534 req->type = ix; 1301 req->type = ix;
1535 req->sv1 = newSVsv (fh); 1302 req->sv1 = newSVsv (fh);
1536 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1303 req->int1 = fd;
1537 1304
1538 REQ_SEND (req); 1305 REQ_SEND;
1539} 1306}
1540 1307
1541int
1542_dup (int fd)
1543 PROTOTYPE: $
1544 CODE:
1545 RETVAL = dup (fd);
1546 OUTPUT:
1547 RETVAL
1548
1549void 1308void
1550_aio_close (int fd, SV *callback=&PL_sv_undef) 1309aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1551 PROTOTYPE: $;$
1552 PPCODE: 1310 PPCODE:
1553{ 1311{
1312 int fd = s_fileno_croak (fh, 0);
1554 dREQ; 1313 dREQ;
1555 1314
1556 req->type = REQ_CLOSE; 1315 req->type = EIO_SYNC_FILE_RANGE;
1316 req->sv1 = newSVsv (fh);
1557 req->int1 = fd; 1317 req->int1 = fd;
1318 req->offs = offset;
1319 req->size = nbytes;
1320 req->int2 = flags;
1558 1321
1559 REQ_SEND (req); 1322 REQ_SEND;
1560} 1323}
1561 1324
1562void 1325void
1326aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1327 PPCODE:
1328{
1329 int fd = s_fileno_croak (fh, 0);
1330 dREQ;
1331
1332 req->type = EIO_FALLOCATE;
1333 req->sv1 = newSVsv (fh);
1334 req->int1 = fd;
1335 req->int2 = mode;
1336 req->offs = offset;
1337 req->size = len;
1338
1339 REQ_SEND;
1340}
1341
1342void
1343aio_close (SV *fh, SV *callback = &PL_sv_undef)
1344 PPCODE:
1345{
1346 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1347 int fd = s_fileno_croak (fh, 0);
1348 dREQ;
1349
1350 if (expect_false (close_fd < 0))
1351 {
1352 int pipefd [2];
1353
1354 if (
1355#ifdef _WIN32
1356 _pipe (pipefd, 1, _O_BINARY) < 0
1357#else
1358 pipe (pipefd) < 0
1359 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1360#endif
1361 || close (pipefd [1]) < 0
1362 )
1363 abort (); /*D*/
1364
1365 close_fd = pipefd [0];
1366 }
1367
1368 req->type = EIO_DUP2;
1369 req->int1 = close_fd;
1370 req->sv2 = newSVsv (fh);
1371 req->int2 = fd;
1372
1373 REQ_SEND;
1374}
1375
1376void
1377aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1378 PPCODE:
1379{
1380 int fd = s_fileno_croak (fh, 0);
1381 dREQ;
1382
1383 req->type = EIO_SEEK;
1384 req->sv1 = newSVsv (fh);
1385 req->int1 = fd;
1386 req->offs = SvVAL64 (offset);
1387 req->int2 = whence;
1388
1389 REQ_SEND;
1390}
1391
1392void
1563aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1393aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1564 ALIAS: 1394 ALIAS:
1565 aio_read = REQ_READ 1395 aio_read = EIO_READ
1566 aio_write = REQ_WRITE 1396 aio_write = EIO_WRITE
1567 PROTOTYPE: $$$$$;$
1568 PPCODE: 1397 PPCODE:
1569{ 1398{
1570 STRLEN svlen; 1399 STRLEN svlen;
1400 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1571 char *svptr = SvPVbyte (data, svlen); 1401 char *svptr = SvPVbyte (data, svlen);
1572 UV len = SvUV (length); 1402 UV len = SvUV (length);
1573 1403
1574 SvUPGRADE (data, SVt_PV);
1575 SvPOK_on (data);
1576
1577 if (dataoffset < 0) 1404 if (dataoffset < 0)
1578 dataoffset += svlen; 1405 dataoffset += svlen;
1579 1406
1580 if (dataoffset < 0 || dataoffset > svlen) 1407 if (dataoffset < 0 || dataoffset > svlen)
1581 croak ("dataoffset outside of data scalar"); 1408 croak ("dataoffset outside of data scalar");
1582 1409
1583 if (ix == REQ_WRITE) 1410 if (ix == EIO_WRITE)
1584 { 1411 {
1585 /* write: check length and adjust. */ 1412 /* write: check length and adjust. */
1586 if (!SvOK (length) || len + dataoffset > svlen) 1413 if (!SvOK (length) || len + dataoffset > svlen)
1587 len = svlen - dataoffset; 1414 len = svlen - dataoffset;
1588 } 1415 }
1589 else 1416 else
1590 { 1417 {
1591 /* read: grow scalar as necessary */ 1418 /* read: check type and grow scalar as necessary */
1419 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1592 svptr = SvGROW (data, len + dataoffset + 1); 1420 svptr = sv_grow (data, len + dataoffset);
1421 else if (SvCUR (data) < len + dataoffset)
1422 croak ("length + dataoffset outside of scalar, and cannot grow");
1593 } 1423 }
1594
1595 if (len < 0)
1596 croak ("length must not be negative");
1597 1424
1598 { 1425 {
1599 dREQ; 1426 dREQ;
1600 1427
1601 req->type = ix; 1428 req->type = ix;
1602 req->sv1 = newSVsv (fh); 1429 req->sv1 = newSVsv (fh);
1603 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1430 req->int1 = fd;
1604 : IoOFP (sv_2io (fh)));
1605 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1431 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1606 req->size = len; 1432 req->size = len;
1607 req->sv2 = SvREFCNT_inc (data); 1433 req->sv2 = SvREFCNT_inc (data);
1608 req->ptr1 = (char *)svptr + dataoffset; 1434 req->ptr2 = (char *)svptr + dataoffset;
1609 req->stroffset = dataoffset; 1435 req->stroffset = dataoffset;
1610 1436
1611 if (!SvREADONLY (data)) 1437 if (!SvREADONLY (data))
1612 { 1438 {
1613 SvREADONLY_on (data); 1439 SvREADONLY_on (data);
… …
1617 REQ_SEND; 1443 REQ_SEND;
1618 } 1444 }
1619} 1445}
1620 1446
1621void 1447void
1622aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1448aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1623 PROTOTYPE: $$;$ 1449 ALIAS:
1450 aio_ioctl = EIO_IOCTL
1451 aio_fcntl = EIO_FCNTL
1624 PPCODE: 1452 PPCODE:
1625{ 1453{
1626 SV *data; 1454 int fd = s_fileno_croak (fh, 0);
1627 dREQ; 1455 char *svptr;
1628 1456
1629 data = newSV (NAME_MAX); 1457 if (SvPOK (arg) || !SvNIOK (arg))
1630 SvPOK_on (data);
1631
1632 req->type = REQ_READLINK;
1633 req->sv1 = newSVsv (path);
1634 req->ptr2 = SvPVbyte_nolen (req->sv1);
1635 req->sv2 = data;
1636 req->ptr1 = SvPVbyte_nolen (data);
1637
1638 REQ_SEND;
1639}
1640
1641void
1642aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1643 PROTOTYPE: $$$$;$
1644 PPCODE:
1645{
1646 dREQ;
1647
1648 req->type = REQ_SENDFILE;
1649 req->sv1 = newSVsv (out_fh);
1650 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1651 req->sv2 = newSVsv (in_fh);
1652 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1653 req->offs = SvVAL64 (in_offset);
1654 req->size = length;
1655
1656 REQ_SEND;
1657}
1658
1659void
1660aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1661 PROTOTYPE: $$$;$
1662 PPCODE:
1663{
1664 dREQ;
1665
1666 req->type = REQ_READAHEAD;
1667 req->sv1 = newSVsv (fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1669 req->offs = SvVAL64 (offset);
1670 req->size = length;
1671
1672 REQ_SEND;
1673}
1674
1675void
1676aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1677 ALIAS:
1678 aio_stat = REQ_STAT
1679 aio_lstat = REQ_LSTAT
1680 PPCODE:
1681{
1682 dREQ;
1683
1684 req->ptr2 = malloc (sizeof (Stat_t));
1685 if (!req->ptr2)
1686 { 1458 {
1687 req_destroy (req); 1459 STRLEN svlen;
1688 croak ("out of memory during aio_stat statdata allocation"); 1460 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1689 } 1461#ifdef IOCPARM_LEN
1462 STRLEN need = IOCPARM_LEN (request);
1463#else
1464 STRLEN need = 256;
1465#endif
1690 1466
1691 req->flags |= FLAG_PTR2_FREE; 1467 if (svlen < need)
1692 req->sv1 = newSVsv (fh_or_path); 1468 svptr = SvGROW (arg, need);
1693
1694 if (SvPOK (fh_or_path))
1695 {
1696 req->type = ix;
1697 req->ptr1 = SvPVbyte_nolen (req->sv1);
1698 } 1469 }
1699 else 1470 else
1471 svptr = (char *)SvIV (arg);
1472
1700 { 1473 {
1474 dREQ;
1475
1701 req->type = REQ_FSTAT; 1476 req->type = ix;
1702 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1477 req->sv1 = newSVsv (fh);
1478 req->int1 = fd;
1479 req->int2 = (long)request;
1480 req->sv2 = SvREFCNT_inc (arg);
1481 req->ptr2 = svptr;
1482
1483 REQ_SEND;
1703 } 1484 }
1485}
1486
1487void
1488aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1489 ALIAS:
1490 aio_readlink = EIO_READLINK
1491 aio_realpath = EIO_REALPATH
1492 PPCODE:
1493{
1494 dREQ;
1495
1496 req->type = ix;
1497 req_set_path1 (req, pathname);
1704 1498
1705 REQ_SEND; 1499 REQ_SEND;
1706} 1500}
1707 1501
1708void 1502void
1503aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1504 PPCODE:
1505{
1506 int ifd = s_fileno_croak (in_fh , 0);
1507 int ofd = s_fileno_croak (out_fh, 1);
1508 dREQ;
1509
1510 req->type = EIO_SENDFILE;
1511 req->sv1 = newSVsv (out_fh);
1512 req->int1 = ofd;
1513 req->sv2 = newSVsv (in_fh);
1514 req->int2 = ifd;
1515 req->offs = in_offset;
1516 req->size = length;
1517
1518 REQ_SEND;
1519}
1520
1521void
1522aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1523 PPCODE:
1524{
1525 int fd = s_fileno_croak (fh, 0);
1526 dREQ;
1527
1528 req->type = EIO_READAHEAD;
1529 req->sv1 = newSVsv (fh);
1530 req->int1 = fd;
1531 req->offs = offset;
1532 req->size = length;
1533
1534 REQ_SEND;
1535}
1536
1537void
1538aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1539 ALIAS:
1540 aio_stat = EIO_STAT
1541 aio_lstat = EIO_LSTAT
1542 aio_statvfs = EIO_STATVFS
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1548
1549 REQ_SEND;
1550}
1551
1552UV
1553major (UV dev)
1554 ALIAS:
1555 minor = 1
1556 CODE:
1557 RETVAL = ix ? minor (dev) : major (dev);
1558 OUTPUT:
1559 RETVAL
1560
1561UV
1562makedev (UV maj, UV min)
1563 CODE:
1564 RETVAL = makedev (maj, min);
1565 OUTPUT:
1566 RETVAL
1567
1568void
1709aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1569aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1710 PPCODE: 1570 PPCODE:
1711{ 1571{
1712 dREQ; 1572 dREQ;
1713 1573
1714 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1574 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1715 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1575 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1716 req->sv1 = newSVsv (fh_or_path); 1576 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1717
1718 if (SvPOK (fh_or_path))
1719 {
1720 req->type = REQ_UTIME;
1721 req->ptr1 = SvPVbyte_nolen (req->sv1);
1722 }
1723 else
1724 {
1725 req->type = REQ_FUTIME;
1726 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1727 }
1728 1577
1729 REQ_SEND; 1578 REQ_SEND;
1730} 1579}
1731 1580
1732void 1581void
1733aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1582aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1734 PPCODE: 1583 PPCODE:
1735{ 1584{
1736 dREQ; 1585 dREQ;
1737 1586
1738 req->sv1 = newSVsv (fh_or_path);
1739 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1587 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1740 1588 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1741 if (SvPOK (fh_or_path))
1742 {
1743 req->type = REQ_TRUNCATE;
1744 req->ptr1 = SvPVbyte_nolen (req->sv1);
1745 }
1746 else
1747 {
1748 req->type = REQ_FTRUNCATE;
1749 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1750 }
1751 1589
1752 REQ_SEND; 1590 REQ_SEND;
1753} 1591}
1754 1592
1755void 1593void
1756aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1594aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1757 PPCODE: 1595 PPCODE:
1758{ 1596{
1759 dREQ; 1597 dREQ;
1760 1598
1761 req->mode = mode; 1599 req->int2 = mode;
1762 req->sv1 = newSVsv (fh_or_path); 1600 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1763
1764 if (SvPOK (fh_or_path))
1765 {
1766 req->type = REQ_CHMOD;
1767 req->ptr1 = SvPVbyte_nolen (req->sv1);
1768 }
1769 else
1770 {
1771 req->type = REQ_FCHMOD;
1772 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1773 }
1774 1601
1775 REQ_SEND; 1602 REQ_SEND;
1776} 1603}
1777 1604
1778void 1605void
1779aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1606aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1780 PPCODE: 1607 PPCODE:
1781{ 1608{
1782 dREQ; 1609 dREQ;
1783 1610
1784 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1611 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1785 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1612 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1786 req->sv1 = newSVsv (fh_or_path); 1613 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1787
1788 if (SvPOK (fh_or_path))
1789 {
1790 req->type = REQ_CHOWN;
1791 req->ptr1 = SvPVbyte_nolen (req->sv1);
1792 }
1793 else
1794 {
1795 req->type = REQ_FCHOWN;
1796 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1797 }
1798 1614
1799 REQ_SEND; 1615 REQ_SEND;
1800} 1616}
1801 1617
1802void 1618void
1619aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1620 PPCODE:
1621{
1622 dREQ;
1623
1624 req->type = EIO_READDIR;
1625 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1626
1627 if (flags & EIO_READDIR_DENTS)
1628 req->int1 |= EIO_READDIR_CUSTOM2;
1629
1630 req_set_path1 (req, pathname);
1631
1632 REQ_SEND;
1633}
1634
1635void
1636aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1637 PPCODE:
1638{
1639 dREQ;
1640
1641 req->type = EIO_MKDIR;
1642 req->int2 = mode;
1643 req_set_path1 (req, pathname);
1644
1645 REQ_SEND;
1646}
1647
1648void
1803aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1649aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1804 ALIAS: 1650 ALIAS:
1805 aio_unlink = REQ_UNLINK 1651 aio_unlink = EIO_UNLINK
1806 aio_rmdir = REQ_RMDIR 1652 aio_rmdir = EIO_RMDIR
1807 aio_readdir = REQ_READDIR 1653 aio_readdir = EIO_READDIR
1808 PPCODE: 1654 PPCODE:
1809{ 1655{
1810 dREQ; 1656 dREQ;
1811 1657
1812 req->type = ix; 1658 req->type = ix;
1813 req->sv1 = newSVsv (pathname); 1659 req_set_path1 (req, pathname);
1814 req->ptr1 = SvPVbyte_nolen (req->sv1);
1815 1660
1816 REQ_SEND; 1661 REQ_SEND;
1817} 1662}
1818 1663
1819void 1664void
1820aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1665aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1666 ALIAS:
1667 aio_link = EIO_LINK
1668 aio_symlink = EIO_SYMLINK
1669 aio_rename = EIO_RENAME
1821 PPCODE: 1670 PPCODE:
1822{ 1671{
1823 dREQ; 1672 eio_wd wd2 = 0;
1824
1825 req->type = REQ_MKDIR;
1826 req->sv1 = newSVsv (pathname);
1827 req->ptr1 = SvPVbyte_nolen (req->sv1);
1828 req->mode = mode;
1829
1830 REQ_SEND;
1831}
1832
1833void
1834aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1835 ALIAS:
1836 aio_link = REQ_LINK
1837 aio_symlink = REQ_SYMLINK
1838 aio_rename = REQ_RENAME
1839 PPCODE:
1840{
1841 dREQ; 1673 dREQ;
1842 1674
1843 req->type = ix; 1675 req->type = ix;
1844 req->sv2 = newSVsv (oldpath); 1676 req_set_path1 (req, oldpath);
1845 req->ptr2 = SvPVbyte_nolen (req->sv2); 1677 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1846 req->sv1 = newSVsv (newpath); 1678 req->int3 = (long)wd2;
1847 req->ptr1 = SvPVbyte_nolen (req->sv1);
1848 1679
1849 REQ_SEND; 1680 REQ_SEND;
1850} 1681}
1851 1682
1852void 1683void
1853aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1684aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1854 PPCODE: 1685 PPCODE:
1855{ 1686{
1687 eio_wd wd2 = 0;
1856 dREQ; 1688 dREQ;
1857 1689
1858 req->type = REQ_MKNOD; 1690 req->type = EIO_RENAME;
1859 req->sv1 = newSVsv (pathname); 1691 req_set_path1 (req, oldpath);
1860 req->ptr1 = SvPVbyte_nolen (req->sv1); 1692 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1861 req->mode = (mode_t)mode; 1693 req->int2 = flags;
1862 req->offs = dev; 1694 req->int3 = (long)wd2;
1863 1695
1864 REQ_SEND; 1696 REQ_SEND;
1865} 1697}
1866 1698
1867void 1699void
1868aio_busy (double delay, SV *callback=&PL_sv_undef) 1700aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1869 PPCODE: 1701 PPCODE:
1870{ 1702{
1871 dREQ; 1703 dREQ;
1704
1705 req->type = EIO_MKNOD;
1706 req->int2 = (mode_t)mode;
1707 req->offs = dev;
1708 req_set_path1 (req, pathname);
1709
1710 REQ_SEND;
1711}
1872 1712
1713void
1714aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1715 ALIAS:
1716 aio_mtouch = EIO_MTOUCH
1717 aio_msync = EIO_MSYNC
1718 PPCODE:
1719{
1720 STRLEN svlen;
1721 char *svptr = SvPVbyte (data, svlen);
1722 UV len = SvUV (length);
1723
1724 if (flags < 0)
1725 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1726
1727 if (offset < 0)
1728 offset += svlen;
1729
1730 if (offset < 0 || offset > svlen)
1731 croak ("offset outside of scalar");
1732
1733 if (!SvOK (length) || len + offset > svlen)
1734 len = svlen - offset;
1735
1736 {
1737 dREQ;
1738
1739 req->type = ix;
1740 req->sv2 = SvREFCNT_inc (data);
1741 req->ptr2 = (char *)svptr + offset;
1742 req->size = len;
1743 req->int1 = flags;
1744
1745 REQ_SEND;
1746 }
1747}
1748
1749void
1750aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1751 PPCODE:
1752{
1753 STRLEN svlen;
1754 char *svptr = SvPVbyte (data, svlen);
1755 UV len = SvUV (length);
1756
1757 if (offset < 0)
1758 offset += svlen;
1759
1760 if (offset < 0 || offset > svlen)
1761 croak ("offset outside of scalar");
1762
1763 if (!SvOK (length) || len + offset > svlen)
1764 len = svlen - offset;
1765
1766 {
1767 dREQ;
1768
1769 req->type = EIO_MLOCK;
1770 req->sv2 = SvREFCNT_inc (data);
1771 req->ptr2 = (char *)svptr + offset;
1772 req->size = len;
1773
1774 REQ_SEND;
1775 }
1776}
1777
1778void
1779aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1780 PPCODE:
1781{
1782 dREQ;
1783
1784 req->type = EIO_MLOCKALL;
1785 req->int1 = flags;
1786
1787 REQ_SEND;
1788}
1789
1790void
1791aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1792 PPCODE:
1793{
1794 int fd = s_fileno_croak (fh, 0);
1795 dREQ;
1796
1797 req->type = EIO_CUSTOM;
1798 req->sv1 = newSVsv (fh);
1799 req->int1 = fd;
1800
1801 req->feed = fiemap;
1802#if HAVE_FIEMAP
1803 /* keep our fingers crossed that the next two types are 64 bit */
1804 req->offs = start;
1805 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1806 req->int2 = flags;
1807 req->int3 = SvOK (count) ? SvIV (count) : -1;
1808#endif
1809
1810 REQ_SEND;
1811}
1812
1813void
1814aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1815 PPCODE:
1816{
1817 char *svptr = 0;
1818
1819 sv_clear_foreign (data);
1820
1821 if (length) /* known length, directly read into scalar */
1822 {
1823 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1824 svptr = sv_grow (data, length);
1825 else if (SvCUR (data) < length)
1826 croak ("length outside of scalar, and cannot grow");
1827 else
1828 svptr = SvPVbyte_nolen (data);
1829 }
1830
1831 {
1832 dREQ;
1833
1834 req->type = EIO_SLURP;
1835 req_set_path1 (req, pathname);
1836 req->offs = offset;
1837 req->size = length;
1838 req->sv2 = SvREFCNT_inc (data);
1839 req->ptr2 = svptr;
1840
1841 if (!SvREADONLY (data))
1842 {
1843 SvREADONLY_on (data);
1844 req->flags |= FLAG_SV2_RO_OFF;
1845 }
1846
1847 REQ_SEND;
1848 }
1849}
1850
1851void
1852aio_busy (double delay, SV *callback = &PL_sv_undef)
1853 PPCODE:
1854{
1855 dREQ;
1856
1873 req->type = REQ_BUSY; 1857 req->type = EIO_BUSY;
1874 req->nv1 = delay < 0. ? 0. : delay; 1858 req->nv1 = delay < 0. ? 0. : delay;
1875 1859
1876 REQ_SEND; 1860 REQ_SEND;
1877} 1861}
1878 1862
1879void 1863void
1880aio_group (SV *callback=&PL_sv_undef) 1864aio_group (SV *callback = &PL_sv_undef)
1881 PROTOTYPE: ;$
1882 PPCODE: 1865 PPCODE:
1883{ 1866{
1884 dREQ; 1867 dREQ;
1885 1868
1886 req->type = REQ_GROUP; 1869 req->type = EIO_GROUP;
1887 1870
1871 PUTBACK;
1888 req_send (req); 1872 req_submit (req);
1873 SPAGAIN;
1874
1889 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1875 XPUSHs (req_sv (req, aio_grp_stash));
1890} 1876}
1891 1877
1892void 1878void
1893aio_nop (SV *callback=&PL_sv_undef) 1879aio_nop (SV *callback = &PL_sv_undef)
1894 ALIAS: 1880 ALIAS:
1895 aio_nop = REQ_NOP 1881 aio_nop = EIO_NOP
1896 aio_sync = REQ_SYNC 1882 aio_sync = EIO_SYNC
1897 PPCODE: 1883 PPCODE:
1898{ 1884{
1899 dREQ; 1885 dREQ;
1900 1886
1901 req->type = ix; 1887 req->type = ix;
1902 1888
1903 REQ_SEND; 1889 REQ_SEND;
1904} 1890}
1905 1891
1906int 1892int
1907aioreq_pri (int pri = 0) 1893aioreq_pri (int pri = NO_INIT)
1908 PROTOTYPE: ;$
1909 CODE: 1894 CODE:
1910 RETVAL = next_pri - PRI_BIAS; 1895 RETVAL = next_pri;
1911 if (items > 0) 1896 if (items > 0)
1912 { 1897 {
1913 if (pri < PRI_MIN) pri = PRI_MIN; 1898 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1914 if (pri > PRI_MAX) pri = PRI_MAX; 1899 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1915 next_pri = pri + PRI_BIAS; 1900 next_pri = pri;
1916 } 1901 }
1917 OUTPUT: 1902 OUTPUT:
1918 RETVAL 1903 RETVAL
1919 1904
1920void 1905void
1921aioreq_nice (int nice = 0) 1906aioreq_nice (int nice = 0)
1922 CODE: 1907 CODE:
1923 nice = next_pri - nice; 1908 nice = next_pri - nice;
1924 if (nice < PRI_MIN) nice = PRI_MIN; 1909 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1925 if (nice > PRI_MAX) nice = PRI_MAX; 1910 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1926 next_pri = nice + PRI_BIAS; 1911 next_pri = nice;
1927 1912
1928void 1913void
1929flush () 1914flush ()
1930 PROTOTYPE:
1931 CODE: 1915 CODE:
1932 while (nreqs) 1916 while (eio_nreqs ())
1933 { 1917 {
1934 poll_wait (); 1918 poll_wait ();
1935 poll_cb (); 1919 poll_cb ();
1936 } 1920 }
1937 1921
1938int 1922int
1939poll() 1923poll ()
1940 PROTOTYPE:
1941 CODE: 1924 CODE:
1942 poll_wait (); 1925 poll_wait ();
1943 RETVAL = poll_cb (); 1926 RETVAL = poll_cb ();
1944 OUTPUT: 1927 OUTPUT:
1945 RETVAL 1928 RETVAL
1946 1929
1947int 1930int
1948poll_fileno() 1931poll_fileno ()
1949 PROTOTYPE:
1950 CODE: 1932 CODE:
1951 RETVAL = respipe [0]; 1933 RETVAL = s_epipe_fd (&respipe);
1952 OUTPUT: 1934 OUTPUT:
1953 RETVAL 1935 RETVAL
1954 1936
1955int 1937int
1956poll_cb(...) 1938poll_cb (...)
1957 PROTOTYPE: 1939 PROTOTYPE:
1958 CODE: 1940 CODE:
1959 RETVAL = poll_cb (); 1941 RETVAL = poll_cb ();
1960 OUTPUT: 1942 OUTPUT:
1961 RETVAL 1943 RETVAL
1962 1944
1963void 1945void
1964poll_wait() 1946poll_wait ()
1965 PROTOTYPE:
1966 CODE: 1947 CODE:
1967 poll_wait (); 1948 poll_wait ();
1968 1949
1969void
1970setsig (int signum = SIGIO)
1971 PROTOTYPE: ;$
1972 CODE:
1973{
1974 if (block_sig_level)
1975 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1976
1977 X_LOCK (reslock);
1978 main_tid = pthread_self ();
1979 main_sig = signum;
1980 X_UNLOCK (reslock);
1981
1982 if (main_sig && npending)
1983 pthread_kill (main_tid, main_sig);
1984}
1985
1986void
1987aio_block (SV *cb)
1988 PROTOTYPE: &
1989 PPCODE:
1990{
1991 int count;
1992
1993 block_sig ();
1994 PUSHMARK (SP);
1995 PUTBACK;
1996 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1997 SPAGAIN;
1998 unblock_sig ();
1999
2000 if (SvTRUE (ERRSV))
2001 croak (0);
2002
2003 XSRETURN (count);
2004}
2005
2006int 1950int
2007nreqs() 1951nreqs ()
2008 PROTOTYPE:
2009 CODE: 1952 CODE:
2010 RETVAL = nreqs; 1953 RETVAL = eio_nreqs ();
2011 OUTPUT: 1954 OUTPUT:
2012 RETVAL 1955 RETVAL
2013 1956
2014int 1957int
2015nready() 1958nready ()
2016 PROTOTYPE:
2017 CODE: 1959 CODE:
2018 RETVAL = get_nready (); 1960 RETVAL = eio_nready ();
2019 OUTPUT: 1961 OUTPUT:
2020 RETVAL 1962 RETVAL
2021 1963
2022int 1964int
2023npending() 1965npending ()
2024 PROTOTYPE:
2025 CODE: 1966 CODE:
2026 RETVAL = get_npending (); 1967 RETVAL = eio_npending ();
2027 OUTPUT: 1968 OUTPUT:
2028 RETVAL 1969 RETVAL
2029 1970
2030int 1971int
2031nthreads() 1972nthreads ()
2032 PROTOTYPE:
2033 CODE: 1973 CODE:
2034 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1974 RETVAL = eio_nthreads ();
2035 RETVAL = started;
2036 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2037 OUTPUT: 1975 OUTPUT:
2038 RETVAL 1976 RETVAL
2039 1977
1978int
1979fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1980 CODE:
1981 RETVAL = posix_fadvise (fh, offset, length, advice);
1982 OUTPUT:
1983 RETVAL
1984
1985IV
1986sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1987 CODE:
1988 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1989 OUTPUT:
1990 RETVAL
1991
1992void
1993mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1994 PPCODE:
1995 sv_clear_foreign (scalar);
1996{
1997 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1998 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1999 if (addr == (void *)-1)
2000 XSRETURN_NO;
2001
2002 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2003
2004 if (!(prot & PROT_WRITE))
2005 SvREADONLY_on (scalar);
2006
2007 XSRETURN_YES;
2008}
2009
2010void
2011munmap (SV *scalar)
2012 CODE:
2013 sv_clear_foreign (scalar);
2014
2015int
2016madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2017 ALIAS:
2018 mprotect = 1
2019 CODE:
2020{
2021 STRLEN svlen;
2022 void *addr = SvPVbyte (scalar, svlen);
2023 STRLEN len = SvUV (length);
2024
2025 if (offset < 0)
2026 offset += svlen;
2027
2028 if (offset < 0 || offset > svlen)
2029 croak ("offset outside of scalar");
2030
2031 if (!SvOK (length) || len + offset > svlen)
2032 len = svlen - offset;
2033
2034 addr = (void *)(((intptr_t)addr) + offset);
2035 eio_page_align (&addr, &len);
2036
2037 switch (ix)
2038 {
2039 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2040 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2041 }
2042}
2043 OUTPUT:
2044 RETVAL
2045
2046int
2047munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2048 CODE:
2049{
2050 STRLEN svlen;
2051 void *addr = SvPVbyte (scalar, svlen);
2052 size_t len = SvUV (length);
2053
2054 if (offset < 0)
2055 offset += svlen;
2056
2057 if (offset < 0 || offset > svlen)
2058 croak ("offset outside of scalar");
2059
2060 if (!SvOK (length) || len + offset > svlen)
2061 len = svlen - offset;
2062
2063 addr = (void *)(((intptr_t)addr) + offset);
2064 eio_page_align (&addr, &len);
2065#if _POSIX_MEMLOCK_RANGE
2066 RETVAL = munlock (addr, len);
2067#else
2068 RETVAL = EIO_ENOSYS ();
2069#endif
2070}
2071 OUTPUT:
2072 RETVAL
2073
2074int
2075munlockall ()
2076 CODE:
2077#if _POSIX_MEMLOCK
2078 munlockall ();
2079#else
2080 RETVAL = EIO_ENOSYS ();
2081#endif
2082 OUTPUT:
2083 RETVAL
2084
2085int
2086splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2087 CODE:
2088{
2089#if HAVE_LINUX_SPLICE
2090 loff_t off_in_, off_out_;
2091 RETVAL = splice (
2092 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2093 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2094 length, flags
2095 );
2096#else
2097 RETVAL = EIO_ENOSYS ();
2098#endif
2099}
2100 OUTPUT:
2101 RETVAL
2102
2103int
2104tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2105 CODE:
2106#if HAVE_LINUX_SPLICE
2107 RETVAL = tee (rfh, wfh, length, flags);
2108#else
2109 RETVAL = EIO_ENOSYS ();
2110#endif
2111 OUTPUT:
2112 RETVAL
2113
2114int
2115pipesize (aio_rfd rfh, int new_size = -1)
2116 PROTOTYPE: $;$
2117 CODE:
2118#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2119 if (new_size >= 0)
2120 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2121 else
2122 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2123#else
2124 errno = ENOSYS;
2125 RETVAL = -1;
2126#endif
2127 OUTPUT:
2128 RETVAL
2129
2130void
2131pipe2 (int flags = 0)
2132 PROTOTYPE: ;$
2133 PPCODE:
2134{
2135 int fd[2];
2136 int res;
2137
2138 if (flags)
2139#if HAVE_PIPE2
2140 res = pipe2 (fd, flags);
2141#else
2142 res = (errno = ENOSYS, -1);
2143#endif
2144 else
2145 res = pipe (fd);
2146
2147 if (!res)
2148 {
2149 EXTEND (SP, 2);
2150 PUSHs (newmortalFH (fd[0], O_RDONLY));
2151 PUSHs (newmortalFH (fd[1], O_WRONLY));
2152 }
2153}
2154
2155UV
2156get_fdlimit ()
2157 CODE:
2158#if HAVE_RLIMITS
2159 struct rlimit rl;
2160 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2161 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2162#endif
2163 XSRETURN_UNDEF;
2164 OUTPUT:
2165 RETVAL
2166
2167void
2168min_fdlimit (UV limit = 0x7fffffffU)
2169 CODE:
2170{
2171#if HAVE_RLIMITS
2172 struct rlimit rl;
2173 rlim_t orig_rlim_max;
2174 UV bit;
2175
2176 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2177 goto fail;
2178
2179 if (rl.rlim_cur == RLIM_INFINITY)
2180 XSRETURN_YES;
2181
2182 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2183
2184 if (rl.rlim_cur < limit)
2185 {
2186 rl.rlim_cur = limit;
2187
2188 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2189 rl.rlim_max = rl.rlim_cur;
2190 }
2191
2192 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2193 XSRETURN_YES;
2194
2195 if (errno == EPERM)
2196 {
2197 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2198 /* our limit overflows a system-wide limit */
2199 /* try an adaptive algorithm, but do not lower the hardlimit */
2200 rl.rlim_max = 0;
2201 for (bit = 0x40000000U; bit; bit >>= 1)
2202 {
2203 rl.rlim_max |= bit;
2204 rl.rlim_cur = rl.rlim_max;
2205
2206 /* nevr decrease the hard limit */
2207 if (rl.rlim_max < orig_rlim_max)
2208 break;
2209
2210 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2211 rl.rlim_max &= ~bit; /* too high, remove bit again */
2212 }
2213
2214 /* now, raise the soft limit to the max permitted */
2215 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2216 {
2217 rl.rlim_cur = rl.rlim_max;
2218 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2219 errno = EPERM;
2220 }
2221 }
2222#endif
2223 fail:
2224 XSRETURN_UNDEF;
2225}
2226
2227void _on_next_submit (SV *cb)
2228 CODE:
2229 SvREFCNT_dec (on_next_submit);
2230 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2231
2040PROTOTYPES: DISABLE 2232PROTOTYPES: DISABLE
2233
2234MODULE = IO::AIO PACKAGE = IO::AIO::WD
2235
2236BOOT:
2237{
2238 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2239 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2240}
2241
2242void
2243DESTROY (SV *self)
2244 CODE:
2245{
2246 aio_wd wd = SvAIO_WD (self);
2247#if HAVE_AT
2248 {
2249 SV *callback = &PL_sv_undef;
2250 dREQ; /* clobbers next_pri :/ */
2251 next_pri = req->pri; /* restore next_pri */
2252 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2253 req->type = EIO_WD_CLOSE;
2254 req->wd = wd;
2255 REQ_SEND;
2256 }
2257#else
2258 eio_wd_close_sync (wd);
2259#endif
2260}
2041 2261
2042MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2262MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2043 2263
2044void 2264void
2045cancel (aio_req_ornot req) 2265cancel (aio_req_ornot req)
2046 CODE: 2266 CODE:
2047 req_cancel (req); 2267 eio_cancel (req);
2048 2268
2049void 2269void
2050cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2270cb (aio_req_ornot req, SV *callback = NO_INIT)
2051 CODE: 2271 PPCODE:
2272{
2273 if (GIMME_V != G_VOID)
2274 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2275
2276 if (items > 1)
2277 {
2278 SV *cb_cv = get_cb (callback);
2279
2052 SvREFCNT_dec (req->callback); 2280 SvREFCNT_dec (req->callback);
2053 req->callback = newSVsv (callback); 2281 req->callback = SvREFCNT_inc (cb_cv);
2282 }
2283}
2054 2284
2055MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2285MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2056 2286
2057void 2287void
2058add (aio_req grp, ...) 2288add (aio_req grp, ...)
2059 PPCODE: 2289 PPCODE:
2060{ 2290{
2061 int i; 2291 int i;
2062 aio_req req;
2063
2064 if (main_sig && !block_sig_level)
2065 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2066 2292
2067 if (grp->int1 == 2) 2293 if (grp->int1 == 2)
2068 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2294 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2069 2295
2070 for (i = 1; i < items; ++i ) 2296 for (i = 1; i < items; ++i )
2071 { 2297 {
2298 aio_req req;
2299
2072 if (GIMME_V != G_VOID) 2300 if (GIMME_V != G_VOID)
2073 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2301 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2074 2302
2075 req = SvAIO_REQ (ST (i)); 2303 req = SvAIO_REQ (ST (i));
2076 2304
2077 if (req) 2305 if (req)
2078 { 2306 eio_grp_add (grp, req);
2079 ++grp->size;
2080 req->grp = grp;
2081
2082 req->grp_prev = 0;
2083 req->grp_next = grp->grp_first;
2084
2085 if (grp->grp_first)
2086 grp->grp_first->grp_prev = req;
2087
2088 grp->grp_first = req;
2089 }
2090 } 2307 }
2091} 2308}
2092 2309
2093void 2310void
2094cancel_subs (aio_req_ornot req) 2311cancel_subs (aio_req_ornot req)
… …
2103 AV *av; 2320 AV *av;
2104 2321
2105 grp->errorno = errno; 2322 grp->errorno = errno;
2106 2323
2107 av = newAV (); 2324 av = newAV ();
2325 av_extend (av, items - 1);
2108 2326
2109 for (i = 1; i < items; ++i ) 2327 for (i = 1; i < items; ++i )
2110 av_push (av, newSVsv (ST (i))); 2328 av_push (av, newSVsv (ST (i)));
2111 2329
2112 SvREFCNT_dec (grp->sv1); 2330 SvREFCNT_dec (grp->sv1);
… …
2119 grp->errorno = errorno; 2337 grp->errorno = errorno;
2120 2338
2121void 2339void
2122limit (aio_req grp, int limit) 2340limit (aio_req grp, int limit)
2123 CODE: 2341 CODE:
2124 grp->int2 = limit; 2342 eio_grp_limit (grp, limit);
2125 aio_grp_feed (grp);
2126 2343
2127void 2344void
2128feed (aio_req grp, SV *callback=&PL_sv_undef) 2345feed (aio_req grp, SV *callback = &PL_sv_undef)
2129 CODE: 2346 CODE:
2130{ 2347{
2131 SvREFCNT_dec (grp->sv2); 2348 SvREFCNT_dec (grp->sv2);
2132 grp->sv2 = newSVsv (callback); 2349 grp->sv2 = newSVsv (callback);
2350 grp->feed = aio_grp_feed;
2133 2351
2134 if (grp->int2 <= 0) 2352 if (grp->int2 <= 0)
2135 grp->int2 = 2; 2353 grp->int2 = 2;
2136 2354
2137 aio_grp_feed (grp); 2355 eio_grp_limit (grp, grp->int2);
2138} 2356}
2139 2357

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