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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 1.253 by root, Tue Feb 20 04:32:59 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_EVENTFD
71# include <sys/sendfile.h> 112# include <sys/eventfd.h>
72# elif __freebsd 113#endif
114
115#if HAVE_RLIMITS
116 #include <sys/time.h>
73# include <sys/socket.h> 117 #include <sys/resource.h>
74# include <sys/uio.h> 118#endif
75# elif __hpux 119
76# include <sys/socket.h> 120typedef SV SV8; /* byte-sv, used for argument-checking */
77# elif __solaris /* not yet */ 121typedef int aio_rfd; /* read file desriptor */
78# include <sys/sendfile.h> 122typedef int aio_wfd; /* write file descriptor */
123
124static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
125
126#define EIO_REQ_MEMBERS \
127 SV *callback; \
128 SV *sv1, *sv2; \
129 SV *sv3, *sv4; \
130 STRLEN stroffset; \
131 SV *self;
132
133#define EIO_NO_WRAPPERS 1
134
135#include "libeio/eio.h"
136
137static int req_invoke (eio_req *req);
138#define EIO_FINISH(req) req_invoke (req)
139static void req_destroy (eio_req *grp);
140#define EIO_DESTROY(req) req_destroy (req)
141
142#include "libeio/eio.c"
143
144#if !HAVE_POSIX_FADVISE
145# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#if !HAVE_POSIX_MADVISE
149# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#ifndef MAP_ANONYMOUS
153# ifdef MAP_ANON
154# define MAP_ANONYMOUS MAP_ANON
79# else 155# else
80# error sendfile support requested but not available 156# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
81# endif 157# endif
82#endif 158#endif
83 159
84/* number of seconds after which idle threads exit */ 160/* defines all sorts of constants to 0 unless they are already defined */
85#define IDLE_TIMEOUT 10 161/* also provides const_iv_ and const_niv_ macros for them */
162#include "def0.h"
86 163
87/* used for struct dirent, AIX doesn't provide it */ 164#ifndef makedev
88#ifndef NAME_MAX 165# define makedev(maj,min) (((maj) << 8) | (min))
89# define NAME_MAX 4096
90#endif 166#endif
91 167#ifndef major
92/* buffer size for various temporary buffers */ 168# 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 169#endif
170#ifndef minor
171# define minor(dev) ((dev) & 0xff)
172#endif
101 173
102static HV *stash; 174#if PAGESIZE <= 0
175# define PAGESIZE sysconf (_SC_PAGESIZE)
176#endif
103 177
104#define dBUF \ 178/*****************************************************************************/
105 char *aio_buf; \ 179
106 X_LOCK (wrklock); \ 180#if !_POSIX_MAPPED_FILES
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 181# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
108 X_UNLOCK (wrklock); \ 182# define munmap(addr,length) EIO_ENOSYS ()
109 if (!aio_buf) \ 183#endif
184
185#if !_POSIX_MEMORY_PROTECTION
186# define mprotect(addr,len,prot) EIO_ENOSYS ()
187#endif
188
189#define FOREIGN_MAGIC PERL_MAGIC_ext
190
191static int ecb_cold
192mmap_free (pTHX_ SV *sv, MAGIC *mg)
193{
194 int old_errno = errno;
195 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
196 errno = old_errno;
197
198 mg->mg_obj = 0; /* just in case */
199
200 SvREADONLY_off (sv);
201
202 if (SvPVX (sv) != mg->mg_ptr)
203 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
204
205 SvCUR_set (sv, 0);
206 SvPVX (sv) = 0;
207 SvOK_off (sv);
208
110 return -1; 209 return 0;
210}
111 211
112typedef SV SV8; /* byte-sv, used for argument-checking */ 212static MGVTBL mmap_vtbl = {
113 213 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}; 214};
131 215
132#define AIO_REQ_KLASS "IO::AIO::REQ" 216static int ecb_cold
133#define AIO_GRP_KLASS "IO::AIO::GRP" 217sysfree_free (pTHX_ SV *sv, MAGIC *mg)
134
135typedef struct aio_cb
136{ 218{
137 struct aio_cb *volatile next; 219 free (mg->mg_ptr);
220 mg->mg_obj = 0; /* just in case */
138 221
139 SV *callback; 222 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;
146 223
147 STRLEN stroffset; 224 if (SvPVX (sv) != mg->mg_ptr)
148 int type; 225 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 226
153 unsigned char flags; 227 SvCUR_set (sv, 0);
154 unsigned char pri; 228 SvPVX (sv) = 0;
229 SvOK_off (sv);
155 230
156 SV *self; /* the perl counterpart of this request, if any */ 231 return 0;
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 232}
158} aio_cb;
159 233
160enum { 234static MGVTBL sysfree_vtbl = {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */ 235 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}; 236};
165 237
166typedef aio_cb *aio_req; 238/*****************************************************************************/
167typedef aio_cb *aio_req_ornot;
168 239
169enum { 240/* helper: set scalar to foreign ptr with custom free */
170 PRI_MIN = -4, 241static void
171 PRI_MAX = 4, 242sv_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{ 243{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 244 sv_force_normal (sv);
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189 245
190static thread_t main_tid; 246 /* we store the length in mg_obj, as namlen is I32 :/ */
191static int main_sig; 247 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
192static int block_sig_level; 248 ->mg_obj = (SV *)length;
193 249
194void block_sig () 250 SvUPGRADE (sv, SVt_PV); /* nop... */
195{
196 sigset_t ss;
197 251
198 if (block_sig_level++) 252 if (SvLEN (sv))
253 Safefree (SvPVX (sv));
254
255 SvPVX (sv) = (char *)addr;
256 SvCUR_set (sv, length);
257 SvLEN_set (sv, 0);
258 SvPOK_only (sv);
259}
260
261static void
262sv_clear_foreign (SV *sv)
263{
264 /* todo: iterate over magic and only free ours, but of course */
265 /* the perl5porters will call that (correct) behaviour buggy */
266 sv_unmagic (sv, FOREIGN_MAGIC);
267}
268
269/*****************************************************************************/
270
271static void
272fiemap (eio_req *req)
273{
274 req->result = -1;
275
276#if HAVE_FIEMAP
277 /* assume some c99 */
278 struct fiemap *fiemap = 0;
279 size_t end_offset;
280 int count = req->int3;
281
282 req->flags |= EIO_FLAG_PTR1_FREE;
283
284 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
285 /* increase in 3.5kb steps */
286 if (count < 0)
287 count = 8;
288
289 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
290 errno = ENOMEM;
291 if (!fiemap)
199 return; 292 return;
200 293
201 if (!main_sig) 294 req->ptr1 = fiemap;
295
296 fiemap->fm_start = req->offs;
297 fiemap->fm_length = req->size;
298 fiemap->fm_flags = req->int2;
299 fiemap->fm_extent_count = count;
300
301 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
202 return; 302 return;
203 303
204 sigemptyset (&ss); 304 if (req->int3 >= 0 /* not autosizing */
205 sigaddset (&ss, main_sig); 305 || !fiemap->fm_mapped_extents /* no more extents */
206 pthread_sigmask (SIG_BLOCK, &ss, 0); 306 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
207} 307 goto done;
208 308
209void unblock_sig () 309 /* else we have to loop -
210{ 310 * it would be tempting (actually I tried that first) to just query the
211 sigset_t ss; 311 * number of extents needed, but linux often feels like not returning all
312 * extents, without telling us it left any out. this complicates
313 * this quite a bit.
314 */
212 315
213 if (--block_sig_level) 316 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
214 return;
215 317
216 if (!main_sig) 318 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 { 319 {
249 closedir (wrk->dirp); 320 /* 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; 321 char scratch[3072];
251 } 322 struct fiemap *incmap = (struct fiemap *)scratch;
252 323
253 if (wrk->dbuf) 324 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
254 { 325 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
255 free (wrk->dbuf); 326 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
256 wrk->dbuf = 0; 327 incmap->fm_flags = fiemap->fm_flags;
257 } 328 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
258}
259 329
260static void worker_free (worker *wrk) 330 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; 331 return;
355 332
356 --q->size; 333 if (!incmap->fm_mapped_extents)
334 goto done;
357 335
358 for (pri = NUM_PRI; pri--; ) 336 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
359 { 337 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 aio_req req = q->qs[pri]; 338 errno = ENOMEM;
361
362 if (req) 339 if (!fiemap)
340 return;
341
342 req->ptr1 = fiemap;
343
344 for (count = 0; count < incmap->fm_mapped_extents; ++count)
363 { 345 {
364 if (!(q->qs[pri] = req->next)) 346 struct fiemap_extent *e = incmap->fm_extents + count;
365 q->qe[pri] = 0;
366 347
367 return req; 348 if (e->fe_logical + e->fe_length >= end_offset)
349 goto done;
350
351 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
352
353 if (e->fe_flags & FIEMAP_EXTENT_LAST)
354 goto done;
355
368 } 356 }
369 } 357 }
370 358
371 abort (); 359done:
372} 360 req->result = 0;
373 361
374static int poll_cb (); 362#else
375static int req_invoke (aio_req req); 363 errno = ENOSYS;
364#endif
365}
366
367/*****************************************************************************/
368
369enum {
370 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
371};
372
373typedef eio_req *aio_req;
374typedef eio_req *aio_req_ornot;
375typedef eio_wd aio_wd;
376
377static SV *on_next_submit;
378static int next_pri = EIO_PRI_DEFAULT;
379static int max_outstanding;
380
381static s_epipe respipe;
382
376static void req_destroy (aio_req req); 383static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 384static void req_cancel (aio_req req);
378 385
386static void
387want_poll (void)
388{
389 /* write a dummy byte to the pipe so fh becomes ready */
390 s_epipe_signal (&respipe);
391}
392
393static void
394done_poll (void)
395{
396 /* read any signals sent by the worker threads */
397 s_epipe_drain (&respipe);
398}
399
379/* must be called at most once */ 400/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 401static SV *
402req_sv (aio_req req, HV *stash)
381{ 403{
382 if (!req->self) 404 if (!req->self)
383 { 405 {
384 req->self = (SV *)newHV (); 406 req->self = (SV *)newHV ();
385 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 407 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
386 } 408 }
387 409
388 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 410 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
389} 411}
390 412
391static aio_req SvAIO_REQ (SV *sv) 413static SV *
414newSVaio_wd (aio_wd wd)
415{
416 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
417}
418
419static aio_req
420SvAIO_REQ (SV *sv)
392{ 421{
393 MAGIC *mg; 422 MAGIC *mg;
394 423
395 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 424 if (!SvROK (sv)
425 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
426 || (SvSTASH (SvRV (sv)) != aio_grp_stash
427 && SvSTASH (SvRV (sv)) != aio_req_stash
428 && !sv_derived_from (sv, "IO::AIO::REQ")))
396 croak ("object of class " AIO_REQ_KLASS " expected"); 429 croak ("object of class IO::AIO::REQ expected");
397 430
398 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 431 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
399 432
400 return mg ? (aio_req)mg->mg_ptr : 0; 433 return mg ? (aio_req)mg->mg_ptr : 0;
401} 434}
402 435
436static aio_wd
437SvAIO_WD (SV *sv)
438{
439 if (!SvROK (sv)
440 || SvTYPE (SvRV (sv)) != SVt_PVMG
441 || SvSTASH (SvRV (sv)) != aio_wd_stash)
442 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
443
444 return (aio_wd)(long)SvIVX (SvRV (sv));
445}
446
447static SV *
448newmortalFH (int fd, int flags)
449{
450 if (fd < 0)
451 return &PL_sv_undef;
452
453 GV *gv = (GV *)sv_newmortal ();
454 char sym[64];
455 int symlen;
456
457 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
458 gv_init (gv, aio_stash, sym, symlen, 0);
459
460 symlen = snprintf (
461 sym,
462 sizeof (sym),
463 "%s&=%d",
464 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
465 fd
466 );
467
468 return do_open (gv, sym, symlen, 0, 0, 0, 0)
469 ? (SV *)gv : &PL_sv_undef;
470}
471
472static void
403static void aio_grp_feed (aio_req grp) 473aio_grp_feed (aio_req grp)
404{ 474{
405 block_sig (); 475 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 476 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 477 dSP;
414 478
415 ENTER; 479 ENTER;
416 SAVETMPS; 480 SAVETMPS;
417 PUSHMARK (SP); 481 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 482 XPUSHs (req_sv (grp, aio_grp_stash));
419 PUTBACK; 483 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 484 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 485 SPAGAIN;
422 FREETMPS; 486 FREETMPS;
423 LEAVE; 487 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 } 488 }
434
435 unblock_sig ();
436} 489}
437 490
438static void aio_grp_dec (aio_req grp) 491static void
492req_submit (eio_req *req)
439{ 493{
440 --grp->size; 494 eio_submit (req);
441 495
442 /* call feeder, if applicable */ 496 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 497 {
448 block_sig (); 498 dSP;
499 SV *cb = sv_2mortal (on_next_submit);
449 500
450 if (!req_invoke (grp)) 501 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 502
457 req_destroy (grp); 503 PUSHMARK (SP);
458 unblock_sig (); 504 PUTBACK;
505 call_sv (cb, G_DISCARD | G_EVAL);
459 } 506 }
460} 507}
461 508
509static int
462static int req_invoke (aio_req req) 510req_invoke (eio_req *req)
463{ 511{
464 dSP;
465
466 if (req->flags & FLAG_SV2_RO_OFF) 512 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 513 SvREADONLY_off (req->sv2);
468 514
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 515 if (!EIO_CANCELLED (req) && req->callback)
470 { 516 {
517 dSP;
518 static SV *sv_result_cache; /* caches the result integer SV */
519 SV *sv_result;
520
471 ENTER; 521 ENTER;
472 SAVETMPS; 522 SAVETMPS;
473 PUSHMARK (SP); 523 PUSHMARK (SP);
474 EXTEND (SP, 1); 524 EXTEND (SP, 1);
475 525
526 /* do not recreate the result IV from scratch each time */
527 if (expect_true (sv_result_cache))
528 {
529 sv_result = sv_result_cache; sv_result_cache = 0;
530 SvIV_set (sv_result, req->result);
531 SvIOK_only (sv_result);
532 }
533 else
534 {
535 sv_result = newSViv (req->result);
536 SvREADONLY_on (sv_result);
537 }
538
476 switch (req->type) 539 switch (req->type)
477 { 540 {
541 case EIO_WD_OPEN:
542 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
543 break;
544
478 case REQ_READDIR: 545 case EIO_READDIR:
479 { 546 {
480 SV *rv = &PL_sv_undef; 547 SV *rv = &PL_sv_undef;
481 548
482 if (req->result >= 0) 549 if (req->result >= 0)
483 { 550 {
484 int i; 551 int i;
485 char *buf = req->ptr2; 552 char *names = (char *)req->ptr2;
553 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
486 AV *av = newAV (); 554 AV *av = newAV ();
487 555
488 av_extend (av, req->result - 1); 556 av_extend (av, req->result - 1);
489 557
490 for (i = 0; i < req->result; ++i) 558 for (i = 0; i < req->result; ++i)
491 { 559 {
492 SV *sv = newSVpv (buf, 0); 560 if (req->int1 & EIO_READDIR_DENTS)
561 {
562 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
493 563
564 if (req->int1 & EIO_READDIR_CUSTOM2)
565 {
566 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
567 AV *avent = newAV ();
568
569 av_extend (avent, 2);
570
571 if (!sv_type [ent->type])
572 {
573 sv_type [ent->type] = newSViv (ent->type);
574 SvREADONLY_on (sv_type [ent->type]);
575 }
576
577 av_store (avent, 0, namesv);
578 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
579 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
580
581 av_store (av, i, newRV_noinc ((SV *)avent));
582 }
583 else
494 av_store (av, i, sv); 584 av_store (av, i, namesv);
585
586 ++ent;
587 }
588 else
589 {
590 SV *name = newSVpv (names, 0);
591 av_store (av, i, name);
495 buf += SvCUR (sv) + 1; 592 names += SvCUR (name) + 1;
593 }
496 } 594 }
497 595
498 rv = sv_2mortal (newRV_noinc ((SV *)av)); 596 rv = sv_2mortal (newRV_noinc ((SV *)av));
499 } 597 }
500 598
501 PUSHs (rv); 599 PUSHs (rv);
600
601 if (req->int1 & EIO_READDIR_CUSTOM1)
602 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 } 603 }
503 break; 604 break;
504 605
505 case REQ_OPEN: 606 case EIO_OPEN:
607 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
608 break;
609
610 case EIO_STATVFS:
611 case EIO_FSTATVFS:
506 { 612 {
507 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 613 SV *rv = &PL_sv_undef;
509 614
615#ifndef _WIN32
510 if (req->result >= 0) 616 if (req->result >= 0)
511 { 617 {
618 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
512 GV *gv = (GV *)sv_newmortal (); 619 HV *hv = newHV ();
513 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 620 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
514 char sym [64]; 621 * chooses to make it a struct.
515 int symlen;
516 622 */
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 623 unsigned long fsid = 0;
518 gv_init (gv, stash, sym, symlen, 0); 624 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
519 625
520 symlen = snprintf ( 626 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 );
527 627
528 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 628 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
529 fh = (SV *)gv; 629 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
630 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
631 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
632 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
633 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
634 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
635 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
636 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
637 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
638 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
530 } 639 }
640#endif
531 641
532 PUSHs (fh); 642 PUSHs (rv);
533 } 643 }
644
534 break; 645 break;
535 646
536 case REQ_GROUP: 647 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 648 req->int1 = 2; /* mark group as finished */
538 649
539 if (req->sv1) 650 if (req->sv1)
540 { 651 {
541 int i; 652 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 656 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 657 PUSHs (*av_fetch (av, i, 0));
547 } 658 }
548 break; 659 break;
549 660
550 case REQ_NOP: 661 case EIO_NOP:
551 case REQ_BUSY: 662 case EIO_BUSY:
552 break; 663 break;
553 664
554 case REQ_READLINK: 665 case EIO_READLINK:
666 case EIO_REALPATH:
555 if (req->result > 0) 667 if (req->result > 0)
668 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
669 break;
670
671 case EIO_STAT:
672 case EIO_LSTAT:
673 case EIO_FSTAT:
674 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
675
676 if (!(PL_laststatval = req->result))
677 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
678 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
679
680 PUSHs (sv_result);
681 break;
682
683 case EIO_SEEK:
684 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
685 break;
686
687 case EIO_READ:
688 {
689 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
690 *SvEND (req->sv2) = 0;
691 SvPOK_only (req->sv2);
692 SvSETMAGIC (req->sv2);
693 PUSHs (sv_result);
694 }
695 break;
696
697 case EIO_SLURP:
698 {
699 if (req->result >= 0)
700 {
701 /* if length was originally not known, we steal the malloc'ed memory */
702 if (req->flags & EIO_FLAG_PTR2_FREE)
703 {
704 req->flags &= ~EIO_FLAG_PTR2_FREE;
705 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
706 }
707 else
708 {
709 SvCUR_set (req->sv2, req->result);
710 *SvEND (req->sv2) = 0;
711 SvPOK_only (req->sv2);
712 }
713
714 SvSETMAGIC (req->sv2);
715 }
716
717 PUSHs (sv_result);
718 }
719 break;
720
721 case EIO_CUSTOM:
722 if (req->feed == fiemap)
556 { 723 {
557 SvCUR_set (req->sv2, req->result); 724#if HAVE_FIEMAP
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2); 725 if (!req->result)
726 {
727 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
728
729 if (fiemap->fm_extent_count)
730 {
731 AV *av = newAV ();
732 int i;
733
734 while (fiemap->fm_mapped_extents)
735 {
736 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
737 AV *ext_av = newAV ();
738
739 av_store (ext_av, 3, newSVuv (extent->fe_flags));
740 av_store (ext_av, 2, newSVval64 (extent->fe_length));
741 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
742 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
743
744 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
745 }
746
747 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
748 }
749 else
750 {
751 SvIV_set (sv_result, fiemap->fm_mapped_extents);
752 PUSHs (sv_result);
753 }
754 }
755#endif
560 } 756 }
757 else
758 PUSHs (sv_result);
561 break; 759 break;
562 760
563 case REQ_STAT: 761 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
564 case REQ_LSTAT: 762 if (req->result > 0)
565 case REQ_FSTAT: 763 SvIV_set (sv_result, 0);
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 764 /* 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;
577 765
578 default: 766 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 767 PUSHs (sv_result);
580 break; 768 break;
581 } 769 }
582 770
583 errno = req->errorno; 771 errno = req->errorno;
584 772
585 PUTBACK; 773 PUTBACK;
586 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 774 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
587 SPAGAIN; 775 SPAGAIN;
588 776
777 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
778 SvREFCNT_dec (sv_result);
779 else
780 sv_result_cache = sv_result;
781
589 FREETMPS; 782 FREETMPS;
590 LEAVE; 783 LEAVE;
591 784
592 PUTBACK; 785 PUTBACK;
593 } 786 }
594 787
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); 788 return !!SvTRUE (ERRSV);
610} 789}
611 790
791static void
612static void req_destroy (aio_req req) 792req_destroy (aio_req req)
613{ 793{
614 if (req->self) 794 if (req->self)
615 { 795 {
616 sv_unmagic (req->self, PERL_MAGIC_ext); 796 sv_unmagic (req->self, PERL_MAGIC_ext);
617 SvREFCNT_dec (req->self); 797 SvREFCNT_dec (req->self);
618 } 798 }
619 799
620 SvREFCNT_dec (req->sv1); 800 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 801 SvREFCNT_dec (req->sv2);
802 SvREFCNT_dec (req->sv3);
803 SvREFCNT_dec (req->sv4);
622 SvREFCNT_dec (req->callback); 804 SvREFCNT_dec (req->callback);
623 805
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 806 free (req);
628} 807}
629 808
809static void
630static void req_cancel_subs (aio_req grp) 810req_cancel_subs (aio_req grp)
631{ 811{
632 aio_req sub;
633
634 if (grp->type != REQ_GROUP) 812 if (grp->type != EIO_GROUP)
635 return; 813 return;
636 814
637 SvREFCNT_dec (grp->sv2); 815 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 816 grp->sv2 = 0;
639 817
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 818 eio_grp_cancel (grp);
641 req_cancel (sub);
642} 819}
643 820
644static void req_cancel (aio_req req) 821static void ecb_cold
822create_respipe (void)
645{ 823{
646 req->flags |= FLAG_CANCELLED; 824 if (s_epipe_renew (&respipe))
647 825 croak ("IO::AIO: unable to initialize result pipe");
648 req_cancel_subs (req);
649} 826}
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
656 827
657static void 828static void
658create_respipe () 829poll_wait (void)
659{ 830{
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) 831 while (eio_nreqs ())
795 { 832 {
796 int size; 833 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 834
835 X_LOCK (EIO_POOL->reslock);
798 size = res_queue.size; 836 size = EIO_POOL->res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 837 X_UNLOCK (EIO_POOL->reslock);
800 838
801 if (size) 839 if (size)
802 return; 840 return;
803 841
804 maybe_start_thread (); 842 etp_maybe_start_thread (EIO_POOL);
805 843
806 FD_ZERO (&rfd); 844 s_epipe_wait (&respipe);
807 FD_SET (respipe [0], &rfd);
808
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 845 }
811} 846}
812 847
813static int poll_cb () 848static int
849poll_cb (void)
814{ 850{
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 (;;) 851 for (;;)
828 { 852 {
829 for (;;) 853 int res = eio_poll ();
854
855 if (res > 0)
856 croak (0);
857
858 if (!max_outstanding || max_outstanding > eio_nreqs ())
859 return res;
860
861 poll_wait ();
862 }
863}
864
865static void ecb_cold
866reinit (void)
867{
868 create_respipe ();
869
870 if (eio_init (want_poll, done_poll) < 0)
871 croak ("IO::AIO: unable to initialise eio library");
872}
873
874/*****************************************************************************/
875
876static SV *
877get_cb (SV *cb_sv)
878{
879 SvGETMAGIC (cb_sv);
880 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
881}
882
883static aio_req ecb_noinline
884dreq (SV *callback)
885{
886 SV *cb_cv;
887 aio_req req;
888 int req_pri = next_pri;
889 next_pri = EIO_PRI_DEFAULT;
890
891 cb_cv = get_cb (callback);
892
893 req = calloc (sizeof (*req), 1);
894 if (!req)
895 croak ("out of memory during eio_req allocation");
896
897 req->callback = SvREFCNT_inc (cb_cv);
898 req->pri = req_pri;
899
900 return req;
901}
902
903#define dREQ \
904 aio_req req = dreq (callback); \
905
906#define REQ_SEND \
907 PUTBACK; \
908 req_submit (req); \
909 SPAGAIN; \
910 \
911 if (GIMME_V != G_VOID) \
912 XPUSHs (req_sv (req, aio_req_stash));
913
914ecb_inline void
915req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
916{
917 if (expect_false (SvROK (path)))
918 {
919 SV *rv = SvRV (path);
920 SV *wdob;
921
922 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
830 { 923 {
831 maybe_start_thread (); 924 path = AvARRAY (rv)[1];
925 wdob = AvARRAY (rv)[0];
832 926
833 X_LOCK (reslock); 927 if (SvOK (wdob))
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 { 928 {
838 --npending; 929 *wd = SvAIO_WD (wdob);
839 930 *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 } 931 }
861 else 932 else
862 { 933 *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 } 934 }
935 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
936 {
937 *wd = (aio_wd)(long)SvIVX (rv);
938 *wdsv = SvREFCNT_inc_NN (rv);
939 *ptr = ".";
940 return; /* path set to "." */
941 }
942 else
943 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
944 }
886 945
887 if (nreqs <= max_outstanding) 946 *pathsv = newSVsv (path);
947 *ptr = SvPVbyte_nolen (*pathsv);
948}
949
950static void ecb_noinline
951req_set_path1 (aio_req req, SV *path)
952{
953 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
954}
955
956static void ecb_noinline
957req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
958{
959 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
960
961 switch (SvTYPE (rv))
962 {
963 case SVt_PVIO:
964 case SVt_PVLV:
965 case SVt_PVGV:
966 req->type = type_fh;
967 req->sv1 = newSVsv (fh_or_path);
968 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
888 break; 969 break;
889 970
890 poll_wait (); 971 default:
891 972 req->type = type_path;
892 ++maxreqs; 973 req_set_path1 (req, fh_or_path);
974 break;
893 } 975 }
894
895 unblock_sig ();
896 return count;
897} 976}
898 977
899/*****************************************************************************/ 978XS(boot_IO__AIO) ecb_cold;
900/* work around various missing functions */
901 979
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 980MODULE = IO::AIO PACKAGE = IO::AIO
1442 981
1443PROTOTYPES: ENABLE 982PROTOTYPES: ENABLE
1444 983
1445BOOT: 984BOOT:
1446{ 985{
986 static const struct {
987 const char *name;
988 IV iv;
989 } *civ, const_iv[] = {
990# define const_niv(name, value) { # name, (IV) value },
991# define const_iv(name) { # name, (IV) name },
992# define const_eio(name) { # name, (IV) EIO_ ## name },
993
994 /* you have to re-run ./gendef0 after adding/removing any constants here */
995 /* the first block can be undef if missing */
996 const_iv (ENOSYS)
997 const_iv (EXDEV)
998 const_iv (EBADR)
999
1000 /* for lseek */
1001 const_iv (SEEK_DATA)
1002 const_iv (SEEK_HOLE)
1003
1004 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1005 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1006 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1007 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1008 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1009 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1010
1011 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1012 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1013 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1014 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1015 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1016
1017 /* the second block will be 0 when missing */
1018 const_iv (O_RDONLY)
1019 const_iv (O_WRONLY)
1020 const_iv (O_RDWR)
1021 const_iv (O_CREAT)
1022 const_iv (O_TRUNC)
1023 const_iv (O_EXCL)
1024 const_iv (O_APPEND)
1025
1026 const_iv (O_ASYNC)
1027 const_iv (O_DIRECT)
1028 const_iv (O_NOATIME)
1029
1030 const_iv (O_CLOEXEC)
1031 const_iv (O_NOCTTY)
1032 const_iv (O_NOFOLLOW)
1033 const_iv (O_NONBLOCK)
1034 const_iv (O_EXEC)
1035 const_iv (O_SEARCH)
1036 const_iv (O_DIRECTORY)
1037 const_iv (O_DSYNC)
1038 const_iv (O_RSYNC)
1039 const_iv (O_SYNC)
1040 const_iv (O_PATH)
1041 const_iv (O_TMPFILE)
1042 const_iv (O_TTY_INIT)
1043
1044 const_iv (S_IFIFO)
1045 const_iv (S_IFCHR)
1046 const_iv (S_IFBLK)
1047 const_iv (S_IFLNK)
1048 const_iv (S_IFREG)
1049 const_iv (S_IFDIR)
1050 const_iv (S_IFWHT)
1051 const_iv (S_IFSOCK)
1052 const_iv (S_IFMT)
1053
1054 const_iv (ST_RDONLY)
1055 const_iv (ST_NOSUID)
1056 const_iv (ST_NODEV)
1057 const_iv (ST_NOEXEC)
1058 const_iv (ST_SYNCHRONOUS)
1059 const_iv (ST_MANDLOCK)
1060 const_iv (ST_WRITE)
1061 const_iv (ST_APPEND)
1062 const_iv (ST_IMMUTABLE)
1063 const_iv (ST_NOATIME)
1064 const_iv (ST_NODIRATIME)
1065 const_iv (ST_RELATIME)
1066
1067 const_iv (PROT_NONE)
1068 const_iv (PROT_EXEC)
1069 const_iv (PROT_READ)
1070 const_iv (PROT_WRITE)
1071
1072 const_iv (MAP_PRIVATE)
1073 const_iv (MAP_SHARED)
1074 const_iv (MAP_FIXED)
1075 const_iv (MAP_ANONYMOUS)
1076
1077 /* linuxish */
1078 const_iv (MAP_LOCKED)
1079 const_iv (MAP_NORESERVE)
1080 const_iv (MAP_POPULATE)
1081 const_iv (MAP_NONBLOCK)
1082 const_iv (MAP_GROWSDOWN)
1083 const_iv (MAP_32BIT)
1084 const_iv (MAP_HUGETLB)
1085 const_iv (MAP_STACK)
1086
1087 const_iv (F_DUPFD_CLOEXEC)
1088
1089 const_iv (F_OFD_GETLK)
1090 const_iv (F_OFD_SETLK)
1091 const_iv (F_OFD_GETLKW)
1092
1093 const_iv (FIFREEZE)
1094 const_iv (FITHAW)
1095 const_iv (FITRIM)
1096 const_iv (FICLONE)
1097 const_iv (FICLONERANGE)
1098 const_iv (FIDEDUPERANGE)
1099
1100 const_iv (FS_IOC_GETFLAGS)
1101 const_iv (FS_IOC_SETFLAGS)
1102 const_iv (FS_IOC_GETVERSION)
1103 const_iv (FS_IOC_SETVERSION)
1104 const_iv (FS_IOC_FIEMAP)
1105 const_iv (FS_IOC_FSGETXATTR)
1106 const_iv (FS_IOC_FSSETXATTR)
1107 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1108 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1109 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1110
1111 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1112
1113 const_iv (FS_SECRM_FL)
1114 const_iv (FS_UNRM_FL)
1115 const_iv (FS_COMPR_FL)
1116 const_iv (FS_SYNC_FL)
1117 const_iv (FS_IMMUTABLE_FL)
1118 const_iv (FS_APPEND_FL)
1119 const_iv (FS_NODUMP_FL)
1120 const_iv (FS_NOATIME_FL)
1121 const_iv (FS_DIRTY_FL)
1122 const_iv (FS_COMPRBLK_FL)
1123 const_iv (FS_NOCOMP_FL)
1124 const_iv (FS_ENCRYPT_FL)
1125 const_iv (FS_BTREE_FL)
1126 const_iv (FS_INDEX_FL)
1127 const_iv (FS_JOURNAL_DATA_FL)
1128 const_iv (FS_NOTAIL_FL)
1129 const_iv (FS_DIRSYNC_FL)
1130 const_iv (FS_TOPDIR_FL)
1131 const_iv (FS_FL_USER_MODIFIABLE)
1132
1133 const_iv (FS_XFLAG_REALTIME)
1134 const_iv (FS_XFLAG_PREALLOC)
1135 const_iv (FS_XFLAG_IMMUTABLE)
1136 const_iv (FS_XFLAG_APPEND)
1137 const_iv (FS_XFLAG_SYNC)
1138 const_iv (FS_XFLAG_NOATIME)
1139 const_iv (FS_XFLAG_NODUMP)
1140 const_iv (FS_XFLAG_RTINHERIT)
1141 const_iv (FS_XFLAG_PROJINHERIT)
1142 const_iv (FS_XFLAG_NOSYMLINKS)
1143 const_iv (FS_XFLAG_EXTSIZE)
1144 const_iv (FS_XFLAG_EXTSZINHERIT)
1145 const_iv (FS_XFLAG_NODEFRAG)
1146 const_iv (FS_XFLAG_FILESTREAM)
1147 const_iv (FS_XFLAG_DAX)
1148 const_iv (FS_XFLAG_HASATTR)
1149
1150 const_iv (FIEMAP_FLAG_SYNC)
1151 const_iv (FIEMAP_FLAG_XATTR)
1152 const_iv (FIEMAP_FLAGS_COMPAT)
1153 const_iv (FIEMAP_EXTENT_LAST)
1154 const_iv (FIEMAP_EXTENT_UNKNOWN)
1155 const_iv (FIEMAP_EXTENT_DELALLOC)
1156 const_iv (FIEMAP_EXTENT_ENCODED)
1157 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1158 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1159 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1160 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1161 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1162 const_iv (FIEMAP_EXTENT_MERGED)
1163 const_iv (FIEMAP_EXTENT_SHARED)
1164
1165 const_iv (SPLICE_F_MOVE)
1166 const_iv (SPLICE_F_NONBLOCK)
1167 const_iv (SPLICE_F_MORE)
1168 const_iv (SPLICE_F_GIFT)
1169
1170 const_iv (EFD_CLOEXEC)
1171 const_iv (EFD_NONBLOCK)
1172 const_iv (EFD_SEMAPHORE)
1173
1174 /* these are libeio constants, and are independent of gendef0 */
1175 const_eio (SEEK_SET)
1176 const_eio (SEEK_CUR)
1177 const_eio (SEEK_END)
1178
1179 const_eio (MCL_FUTURE)
1180 const_eio (MCL_CURRENT)
1181
1182 const_eio (MS_ASYNC)
1183 const_eio (MS_INVALIDATE)
1184 const_eio (MS_SYNC)
1185
1186 const_eio (MT_MODIFY)
1187
1188 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1189 const_eio (SYNC_FILE_RANGE_WRITE)
1190 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1191
1192 const_eio (FALLOC_FL_KEEP_SIZE)
1193 const_eio (FALLOC_FL_PUNCH_HOLE)
1194 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1195 const_eio (FALLOC_FL_ZERO_RANGE)
1196 const_eio (FALLOC_FL_INSERT_RANGE)
1197 const_eio (FALLOC_FL_UNSHARE_RANGE)
1198
1199 const_eio (RENAME_NOREPLACE)
1200 const_eio (RENAME_EXCHANGE)
1201 const_eio (RENAME_WHITEOUT)
1202
1203 const_eio (READDIR_DENTS)
1204 const_eio (READDIR_DIRS_FIRST)
1205 const_eio (READDIR_STAT_ORDER)
1206 const_eio (READDIR_FOUND_UNKNOWN)
1207
1208 const_eio (DT_UNKNOWN)
1209 const_eio (DT_FIFO)
1210 const_eio (DT_CHR)
1211 const_eio (DT_DIR)
1212 const_eio (DT_BLK)
1213 const_eio (DT_REG)
1214 const_eio (DT_LNK)
1215 const_eio (DT_SOCK)
1216 const_eio (DT_WHT)
1217 };
1218
1447 stash = gv_stashpv ("IO::AIO", 1); 1219 aio_stash = gv_stashpv ("IO::AIO" , 1);
1220 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1221 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1222 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1448 1223
1449 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1224 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1450 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1225 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 1226
1462 X_COND_CHECK (reqwait); 1227 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 1228
1468 create_respipe (); 1229 reinit ();
1469
1470 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1471} 1230}
1472 1231
1473void 1232void
1233reinit ()
1234 PROTOTYPE:
1235
1236void
1474max_poll_reqs (int nreqs) 1237max_poll_reqs (unsigned int nreqs)
1475 PROTOTYPE: $ 1238 PROTOTYPE: $
1476 CODE: 1239 CODE:
1477 max_poll_reqs = nreqs; 1240 eio_set_max_poll_reqs (nreqs);
1478 1241
1479void 1242void
1480max_poll_time (double nseconds) 1243max_poll_time (double nseconds)
1481 PROTOTYPE: $ 1244 PROTOTYPE: $
1482 CODE: 1245 CODE:
1483 max_poll_time = nseconds * AIO_TICKS; 1246 eio_set_max_poll_time (nseconds);
1484 1247
1485void 1248void
1486min_parallel (int nthreads) 1249min_parallel (unsigned int nthreads)
1487 PROTOTYPE: $
1488
1489void
1490max_parallel (int nthreads)
1491 PROTOTYPE: $
1492
1493void
1494max_idle (int nthreads)
1495 PROTOTYPE: $ 1250 PROTOTYPE: $
1496 CODE: 1251 CODE:
1497 set_max_idle (nthreads); 1252 eio_set_min_parallel (nthreads);
1498 1253
1499int 1254void
1500max_outstanding (int maxreqs) 1255max_parallel (unsigned int nthreads)
1501 PROTOTYPE: $ 1256 PROTOTYPE: $
1502 CODE: 1257 CODE:
1503 RETVAL = max_outstanding; 1258 eio_set_max_parallel (nthreads);
1259
1260void
1261max_idle (unsigned int nthreads)
1262 PROTOTYPE: $
1263 CODE:
1264 eio_set_max_idle (nthreads);
1265
1266void
1267idle_timeout (unsigned int seconds)
1268 PROTOTYPE: $
1269 CODE:
1270 eio_set_idle_timeout (seconds);
1271
1272void
1273max_outstanding (unsigned int maxreqs)
1274 PROTOTYPE: $
1275 CODE:
1504 max_outstanding = maxreqs; 1276 max_outstanding = maxreqs;
1505 OUTPUT:
1506 RETVAL
1507 1277
1508void 1278void
1509aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1279aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1510 PROTOTYPE: $$$;$
1511 PPCODE: 1280 PPCODE:
1512{ 1281{
1513 dREQ; 1282 dREQ;
1514 1283
1284 req->type = EIO_WD_OPEN;
1285 req_set_path1 (req, pathname);
1286
1287 REQ_SEND;
1288}
1289
1290void
1291aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1292 PPCODE:
1293{
1294 dREQ;
1295
1515 req->type = REQ_OPEN; 1296 req->type = EIO_OPEN;
1516 req->sv1 = newSVsv (pathname); 1297 req_set_path1 (req, pathname);
1517 req->ptr1 = SvPVbyte_nolen (req->sv1);
1518 req->int1 = flags; 1298 req->int1 = flags;
1519 req->mode = mode; 1299 req->int2 = mode;
1520 1300
1521 REQ_SEND; 1301 REQ_SEND;
1522} 1302}
1523 1303
1524void 1304void
1525aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1305aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1526 PROTOTYPE: $;$
1527 ALIAS: 1306 ALIAS:
1528 aio_fsync = REQ_FSYNC 1307 aio_fsync = EIO_FSYNC
1529 aio_fdatasync = REQ_FDATASYNC 1308 aio_fdatasync = EIO_FDATASYNC
1309 aio_syncfs = EIO_SYNCFS
1530 PPCODE: 1310 PPCODE:
1531{ 1311{
1312 int fd = s_fileno_croak (fh, 0);
1532 dREQ; 1313 dREQ;
1533 1314
1534 req->type = ix; 1315 req->type = ix;
1535 req->sv1 = newSVsv (fh); 1316 req->sv1 = newSVsv (fh);
1536 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1317 req->int1 = fd;
1537 1318
1538 REQ_SEND (req); 1319 REQ_SEND;
1539} 1320}
1540 1321
1541int
1542_dup (int fd)
1543 PROTOTYPE: $
1544 CODE:
1545 RETVAL = dup (fd);
1546 OUTPUT:
1547 RETVAL
1548
1549void 1322void
1550_aio_close (int fd, SV *callback=&PL_sv_undef) 1323aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1551 PROTOTYPE: $;$
1552 PPCODE: 1324 PPCODE:
1553{ 1325{
1326 int fd = s_fileno_croak (fh, 0);
1554 dREQ; 1327 dREQ;
1555 1328
1556 req->type = REQ_CLOSE; 1329 req->type = EIO_SYNC_FILE_RANGE;
1330 req->sv1 = newSVsv (fh);
1557 req->int1 = fd; 1331 req->int1 = fd;
1332 req->offs = offset;
1333 req->size = nbytes;
1334 req->int2 = flags;
1558 1335
1559 REQ_SEND (req); 1336 REQ_SEND;
1560} 1337}
1561 1338
1562void 1339void
1340aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1341 PPCODE:
1342{
1343 int fd = s_fileno_croak (fh, 0);
1344 dREQ;
1345
1346 req->type = EIO_FALLOCATE;
1347 req->sv1 = newSVsv (fh);
1348 req->int1 = fd;
1349 req->int2 = mode;
1350 req->offs = offset;
1351 req->size = len;
1352
1353 REQ_SEND;
1354}
1355
1356void
1357aio_close (SV *fh, SV *callback = &PL_sv_undef)
1358 PPCODE:
1359{
1360 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1361 int fd = s_fileno_croak (fh, 0);
1362 dREQ;
1363
1364 if (expect_false (close_fd < 0))
1365 {
1366 int pipefd [2];
1367
1368 if (
1369#ifdef _WIN32
1370 _pipe (pipefd, 1, _O_BINARY) < 0
1371#else
1372 pipe (pipefd) < 0
1373 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1374#endif
1375 || close (pipefd [1]) < 0
1376 )
1377 abort (); /*D*/
1378
1379 close_fd = pipefd [0];
1380 }
1381
1382 req->type = EIO_DUP2;
1383 req->int1 = close_fd;
1384 req->sv2 = newSVsv (fh);
1385 req->int2 = fd;
1386
1387 REQ_SEND;
1388}
1389
1390void
1391aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1392 PPCODE:
1393{
1394 int fd = s_fileno_croak (fh, 0);
1395 dREQ;
1396
1397 req->type = EIO_SEEK;
1398 req->sv1 = newSVsv (fh);
1399 req->int1 = fd;
1400 req->offs = SvVAL64 (offset);
1401 req->int2 = whence;
1402
1403 REQ_SEND;
1404}
1405
1406void
1563aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1407aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1564 ALIAS: 1408 ALIAS:
1565 aio_read = REQ_READ 1409 aio_read = EIO_READ
1566 aio_write = REQ_WRITE 1410 aio_write = EIO_WRITE
1567 PROTOTYPE: $$$$$;$
1568 PPCODE: 1411 PPCODE:
1569{ 1412{
1570 STRLEN svlen; 1413 STRLEN svlen;
1414 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1571 char *svptr = SvPVbyte (data, svlen); 1415 char *svptr = SvPVbyte (data, svlen);
1572 UV len = SvUV (length); 1416 UV len = SvUV (length);
1573 1417
1574 SvUPGRADE (data, SVt_PV);
1575 SvPOK_on (data);
1576
1577 if (dataoffset < 0) 1418 if (dataoffset < 0)
1578 dataoffset += svlen; 1419 dataoffset += svlen;
1579 1420
1580 if (dataoffset < 0 || dataoffset > svlen) 1421 if (dataoffset < 0 || dataoffset > svlen)
1581 croak ("dataoffset outside of data scalar"); 1422 croak ("dataoffset outside of data scalar");
1582 1423
1583 if (ix == REQ_WRITE) 1424 if (ix == EIO_WRITE)
1584 { 1425 {
1585 /* write: check length and adjust. */ 1426 /* write: check length and adjust. */
1586 if (!SvOK (length) || len + dataoffset > svlen) 1427 if (!SvOK (length) || len + dataoffset > svlen)
1587 len = svlen - dataoffset; 1428 len = svlen - dataoffset;
1588 } 1429 }
1589 else 1430 else
1590 { 1431 {
1591 /* read: grow scalar as necessary */ 1432 /* read: check type and grow scalar as necessary */
1433 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1592 svptr = SvGROW (data, len + dataoffset + 1); 1434 svptr = sv_grow (data, len + dataoffset + 1);
1435 else if (SvCUR (data) < len + dataoffset)
1436 croak ("length + dataoffset outside of scalar, and cannot grow");
1593 } 1437 }
1594
1595 if (len < 0)
1596 croak ("length must not be negative");
1597 1438
1598 { 1439 {
1599 dREQ; 1440 dREQ;
1600 1441
1601 req->type = ix; 1442 req->type = ix;
1602 req->sv1 = newSVsv (fh); 1443 req->sv1 = newSVsv (fh);
1603 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1444 req->int1 = fd;
1604 : IoOFP (sv_2io (fh)));
1605 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1445 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1606 req->size = len; 1446 req->size = len;
1607 req->sv2 = SvREFCNT_inc (data); 1447 req->sv2 = SvREFCNT_inc (data);
1608 req->ptr1 = (char *)svptr + dataoffset; 1448 req->ptr2 = (char *)svptr + dataoffset;
1609 req->stroffset = dataoffset; 1449 req->stroffset = dataoffset;
1610 1450
1611 if (!SvREADONLY (data)) 1451 if (!SvREADONLY (data))
1612 { 1452 {
1613 SvREADONLY_on (data); 1453 SvREADONLY_on (data);
… …
1617 REQ_SEND; 1457 REQ_SEND;
1618 } 1458 }
1619} 1459}
1620 1460
1621void 1461void
1622aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1462aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1623 PROTOTYPE: $$;$ 1463 ALIAS:
1464 aio_ioctl = EIO_IOCTL
1465 aio_fcntl = EIO_FCNTL
1624 PPCODE: 1466 PPCODE:
1625{ 1467{
1626 SV *data; 1468 int fd = s_fileno_croak (fh, 0);
1627 dREQ; 1469 char *svptr;
1628 1470
1629 data = newSV (NAME_MAX); 1471 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 { 1472 {
1687 req_destroy (req); 1473 STRLEN svlen;
1688 croak ("out of memory during aio_stat statdata allocation"); 1474 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1689 } 1475#ifdef IOCPARM_LEN
1476 STRLEN need = IOCPARM_LEN (request);
1477#else
1478 STRLEN need = 256;
1479#endif
1690 1480
1691 req->flags |= FLAG_PTR2_FREE; 1481 if (svlen < need)
1692 req->sv1 = newSVsv (fh_or_path); 1482 svptr = SvGROW (arg, need);
1693
1694 if (SvPOK (fh_or_path))
1695 {
1696 req->type = ix;
1697 req->ptr1 = SvPVbyte_nolen (req->sv1);
1698 } 1483 }
1699 else 1484 else
1485 svptr = (char *)SvIV (arg);
1486
1700 { 1487 {
1488 dREQ;
1489
1701 req->type = REQ_FSTAT; 1490 req->type = ix;
1702 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1491 req->sv1 = newSVsv (fh);
1492 req->int1 = fd;
1493 req->int2 = (long)request;
1494 req->sv2 = SvREFCNT_inc (arg);
1495 req->ptr2 = svptr;
1496
1497 REQ_SEND;
1703 } 1498 }
1499}
1500
1501void
1502aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1503 ALIAS:
1504 aio_readlink = EIO_READLINK
1505 aio_realpath = EIO_REALPATH
1506 PPCODE:
1507{
1508 dREQ;
1509
1510 req->type = ix;
1511 req_set_path1 (req, pathname);
1704 1512
1705 REQ_SEND; 1513 REQ_SEND;
1706} 1514}
1707 1515
1708void 1516void
1517aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1518 PPCODE:
1519{
1520 int ifd = s_fileno_croak (in_fh , 0);
1521 int ofd = s_fileno_croak (out_fh, 1);
1522 dREQ;
1523
1524 req->type = EIO_SENDFILE;
1525 req->sv1 = newSVsv (out_fh);
1526 req->int1 = ofd;
1527 req->sv2 = newSVsv (in_fh);
1528 req->int2 = ifd;
1529 req->offs = in_offset;
1530 req->size = length;
1531
1532 REQ_SEND;
1533}
1534
1535void
1536aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1537 PPCODE:
1538{
1539 int fd = s_fileno_croak (fh, 0);
1540 dREQ;
1541
1542 req->type = EIO_READAHEAD;
1543 req->sv1 = newSVsv (fh);
1544 req->int1 = fd;
1545 req->offs = offset;
1546 req->size = length;
1547
1548 REQ_SEND;
1549}
1550
1551void
1552aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1553 ALIAS:
1554 aio_stat = EIO_STAT
1555 aio_lstat = EIO_LSTAT
1556 aio_statvfs = EIO_STATVFS
1557 PPCODE:
1558{
1559 dREQ;
1560
1561 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1562
1563 REQ_SEND;
1564}
1565
1566UV
1567major (UV dev)
1568 ALIAS:
1569 minor = 1
1570 CODE:
1571 RETVAL = ix ? minor (dev) : major (dev);
1572 OUTPUT:
1573 RETVAL
1574
1575UV
1576makedev (UV maj, UV min)
1577 CODE:
1578 RETVAL = makedev (maj, min);
1579 OUTPUT:
1580 RETVAL
1581
1582void
1709aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1583aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1710 PPCODE: 1584 PPCODE:
1711{ 1585{
1712 dREQ; 1586 dREQ;
1713 1587
1714 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1588 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1715 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1589 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1716 req->sv1 = newSVsv (fh_or_path); 1590 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 1591
1729 REQ_SEND; 1592 REQ_SEND;
1730} 1593}
1731 1594
1732void 1595void
1733aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) 1596aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1734 PPCODE: 1597 PPCODE:
1735{ 1598{
1736 dREQ; 1599 dREQ;
1737 1600
1738 req->sv1 = newSVsv (fh_or_path);
1739 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1601 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1740 1602 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 1603
1752 REQ_SEND; 1604 REQ_SEND;
1753} 1605}
1754 1606
1755void 1607void
1756aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1608aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1757 PPCODE: 1609 PPCODE:
1758{ 1610{
1759 dREQ; 1611 dREQ;
1760 1612
1761 req->mode = mode; 1613 req->int2 = mode;
1762 req->sv1 = newSVsv (fh_or_path); 1614 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 1615
1775 REQ_SEND; 1616 REQ_SEND;
1776} 1617}
1777 1618
1778void 1619void
1779aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1620aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1780 PPCODE: 1621 PPCODE:
1781{ 1622{
1782 dREQ; 1623 dREQ;
1783 1624
1784 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1625 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1785 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1626 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1786 req->sv1 = newSVsv (fh_or_path); 1627 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 1628
1799 REQ_SEND; 1629 REQ_SEND;
1800} 1630}
1801 1631
1802void 1632void
1633aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1634 PPCODE:
1635{
1636 dREQ;
1637
1638 req->type = EIO_READDIR;
1639 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1640
1641 if (flags & EIO_READDIR_DENTS)
1642 req->int1 |= EIO_READDIR_CUSTOM2;
1643
1644 req_set_path1 (req, pathname);
1645
1646 REQ_SEND;
1647}
1648
1649void
1650aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1651 PPCODE:
1652{
1653 dREQ;
1654
1655 req->type = EIO_MKDIR;
1656 req->int2 = mode;
1657 req_set_path1 (req, pathname);
1658
1659 REQ_SEND;
1660}
1661
1662void
1803aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1663aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1804 ALIAS: 1664 ALIAS:
1805 aio_unlink = REQ_UNLINK 1665 aio_unlink = EIO_UNLINK
1806 aio_rmdir = REQ_RMDIR 1666 aio_rmdir = EIO_RMDIR
1807 aio_readdir = REQ_READDIR 1667 aio_readdir = EIO_READDIR
1808 PPCODE: 1668 PPCODE:
1809{ 1669{
1810 dREQ; 1670 dREQ;
1811 1671
1812 req->type = ix; 1672 req->type = ix;
1813 req->sv1 = newSVsv (pathname); 1673 req_set_path1 (req, pathname);
1814 req->ptr1 = SvPVbyte_nolen (req->sv1);
1815 1674
1816 REQ_SEND; 1675 REQ_SEND;
1817} 1676}
1818 1677
1819void 1678void
1820aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1679aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1680 ALIAS:
1681 aio_link = EIO_LINK
1682 aio_symlink = EIO_SYMLINK
1683 aio_rename = EIO_RENAME
1821 PPCODE: 1684 PPCODE:
1822{ 1685{
1823 dREQ; 1686 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; 1687 dREQ;
1842 1688
1843 req->type = ix; 1689 req->type = ix;
1844 req->sv2 = newSVsv (oldpath); 1690 req_set_path1 (req, oldpath);
1845 req->ptr2 = SvPVbyte_nolen (req->sv2); 1691 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1846 req->sv1 = newSVsv (newpath); 1692 req->int3 = (long)wd2;
1847 req->ptr1 = SvPVbyte_nolen (req->sv1);
1848 1693
1849 REQ_SEND; 1694 REQ_SEND;
1850} 1695}
1851 1696
1852void 1697void
1853aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1698aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1854 PPCODE: 1699 PPCODE:
1855{ 1700{
1701 eio_wd wd2 = 0;
1856 dREQ; 1702 dREQ;
1857 1703
1858 req->type = REQ_MKNOD; 1704 req->type = EIO_RENAME;
1859 req->sv1 = newSVsv (pathname); 1705 req_set_path1 (req, oldpath);
1860 req->ptr1 = SvPVbyte_nolen (req->sv1); 1706 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1861 req->mode = (mode_t)mode; 1707 req->int2 = flags;
1862 req->offs = dev; 1708 req->int3 = (long)wd2;
1863 1709
1864 REQ_SEND; 1710 REQ_SEND;
1865} 1711}
1866 1712
1867void 1713void
1868aio_busy (double delay, SV *callback=&PL_sv_undef) 1714aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1869 PPCODE: 1715 PPCODE:
1870{ 1716{
1871 dREQ; 1717 dREQ;
1718
1719 req->type = EIO_MKNOD;
1720 req->int2 = (mode_t)mode;
1721 req->offs = dev;
1722 req_set_path1 (req, pathname);
1723
1724 REQ_SEND;
1725}
1872 1726
1727void
1728aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1729 ALIAS:
1730 aio_mtouch = EIO_MTOUCH
1731 aio_msync = EIO_MSYNC
1732 PPCODE:
1733{
1734 STRLEN svlen;
1735 char *svptr = SvPVbyte (data, svlen);
1736 UV len = SvUV (length);
1737
1738 if (flags < 0)
1739 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1740
1741 if (offset < 0)
1742 offset += svlen;
1743
1744 if (offset < 0 || offset > svlen)
1745 croak ("offset outside of scalar");
1746
1747 if (!SvOK (length) || len + offset > svlen)
1748 len = svlen - offset;
1749
1750 {
1751 dREQ;
1752
1753 req->type = ix;
1754 req->sv2 = SvREFCNT_inc (data);
1755 req->ptr2 = (char *)svptr + offset;
1756 req->size = len;
1757 req->int1 = flags;
1758
1759 REQ_SEND;
1760 }
1761}
1762
1763void
1764aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1765 PPCODE:
1766{
1767 STRLEN svlen;
1768 char *svptr = SvPVbyte (data, svlen);
1769 UV len = SvUV (length);
1770
1771 if (offset < 0)
1772 offset += svlen;
1773
1774 if (offset < 0 || offset > svlen)
1775 croak ("offset outside of scalar");
1776
1777 if (!SvOK (length) || len + offset > svlen)
1778 len = svlen - offset;
1779
1780 {
1781 dREQ;
1782
1783 req->type = EIO_MLOCK;
1784 req->sv2 = SvREFCNT_inc (data);
1785 req->ptr2 = (char *)svptr + offset;
1786 req->size = len;
1787
1788 REQ_SEND;
1789 }
1790}
1791
1792void
1793aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1794 PPCODE:
1795{
1796 dREQ;
1797
1798 req->type = EIO_MLOCKALL;
1799 req->int1 = flags;
1800
1801 REQ_SEND;
1802}
1803
1804void
1805aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1806 PPCODE:
1807{
1808 int fd = s_fileno_croak (fh, 0);
1809 dREQ;
1810
1811 req->type = EIO_CUSTOM;
1812 req->sv1 = newSVsv (fh);
1813 req->int1 = fd;
1814
1815 req->feed = fiemap;
1816#if HAVE_FIEMAP
1817 /* keep our fingers crossed that the next two types are 64 bit */
1818 req->offs = start;
1819 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1820 req->int2 = flags;
1821 req->int3 = SvOK (count) ? SvIV (count) : -1;
1822#endif
1823
1824 REQ_SEND;
1825}
1826
1827void
1828aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1829 PPCODE:
1830{
1831 char *svptr = 0;
1832
1833 sv_clear_foreign (data);
1834
1835 if (length) /* known length, directly read into scalar */
1836 {
1837 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1838 svptr = sv_grow (data, length + 1);
1839 else if (SvCUR (data) < length)
1840 croak ("length outside of scalar, and cannot grow");
1841 else
1842 svptr = SvPVbyte_nolen (data);
1843 }
1844
1845 {
1846 dREQ;
1847
1848 req->type = EIO_SLURP;
1849 req_set_path1 (req, pathname);
1850 req->offs = offset;
1851 req->size = length;
1852 req->sv2 = SvREFCNT_inc (data);
1853 req->ptr2 = svptr;
1854
1855 if (!SvREADONLY (data))
1856 {
1857 SvREADONLY_on (data);
1858 req->flags |= FLAG_SV2_RO_OFF;
1859 }
1860
1861 REQ_SEND;
1862 }
1863}
1864
1865void
1866aio_busy (double delay, SV *callback = &PL_sv_undef)
1867 PPCODE:
1868{
1869 dREQ;
1870
1873 req->type = REQ_BUSY; 1871 req->type = EIO_BUSY;
1874 req->nv1 = delay < 0. ? 0. : delay; 1872 req->nv1 = delay < 0. ? 0. : delay;
1875 1873
1876 REQ_SEND; 1874 REQ_SEND;
1877} 1875}
1878 1876
1879void 1877void
1880aio_group (SV *callback=&PL_sv_undef) 1878aio_group (SV *callback = &PL_sv_undef)
1881 PROTOTYPE: ;$
1882 PPCODE: 1879 PPCODE:
1883{ 1880{
1884 dREQ; 1881 dREQ;
1885 1882
1886 req->type = REQ_GROUP; 1883 req->type = EIO_GROUP;
1887 1884
1885 PUTBACK;
1888 req_send (req); 1886 req_submit (req);
1887 SPAGAIN;
1888
1889 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1889 XPUSHs (req_sv (req, aio_grp_stash));
1890} 1890}
1891 1891
1892void 1892void
1893aio_nop (SV *callback=&PL_sv_undef) 1893aio_nop (SV *callback = &PL_sv_undef)
1894 ALIAS: 1894 ALIAS:
1895 aio_nop = REQ_NOP 1895 aio_nop = EIO_NOP
1896 aio_sync = REQ_SYNC 1896 aio_sync = EIO_SYNC
1897 PPCODE: 1897 PPCODE:
1898{ 1898{
1899 dREQ; 1899 dREQ;
1900 1900
1901 req->type = ix; 1901 req->type = ix;
1902 1902
1903 REQ_SEND; 1903 REQ_SEND;
1904} 1904}
1905 1905
1906int 1906int
1907aioreq_pri (int pri = 0) 1907aioreq_pri (int pri = NO_INIT)
1908 PROTOTYPE: ;$
1909 CODE: 1908 CODE:
1910 RETVAL = next_pri - PRI_BIAS; 1909 RETVAL = next_pri;
1911 if (items > 0) 1910 if (items > 0)
1912 { 1911 {
1913 if (pri < PRI_MIN) pri = PRI_MIN; 1912 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1914 if (pri > PRI_MAX) pri = PRI_MAX; 1913 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1915 next_pri = pri + PRI_BIAS; 1914 next_pri = pri;
1916 } 1915 }
1917 OUTPUT: 1916 OUTPUT:
1918 RETVAL 1917 RETVAL
1919 1918
1920void 1919void
1921aioreq_nice (int nice = 0) 1920aioreq_nice (int nice = 0)
1922 CODE: 1921 CODE:
1923 nice = next_pri - nice; 1922 nice = next_pri - nice;
1924 if (nice < PRI_MIN) nice = PRI_MIN; 1923 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1925 if (nice > PRI_MAX) nice = PRI_MAX; 1924 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1926 next_pri = nice + PRI_BIAS; 1925 next_pri = nice;
1927 1926
1928void 1927void
1929flush () 1928flush ()
1930 PROTOTYPE:
1931 CODE: 1929 CODE:
1932 while (nreqs) 1930 while (eio_nreqs ())
1933 { 1931 {
1934 poll_wait (); 1932 poll_wait ();
1935 poll_cb (); 1933 poll_cb ();
1936 } 1934 }
1937 1935
1938int 1936int
1939poll() 1937poll ()
1940 PROTOTYPE:
1941 CODE: 1938 CODE:
1942 poll_wait (); 1939 poll_wait ();
1943 RETVAL = poll_cb (); 1940 RETVAL = poll_cb ();
1944 OUTPUT: 1941 OUTPUT:
1945 RETVAL 1942 RETVAL
1946 1943
1947int 1944int
1948poll_fileno() 1945poll_fileno ()
1949 PROTOTYPE:
1950 CODE: 1946 CODE:
1951 RETVAL = respipe [0]; 1947 RETVAL = s_epipe_fd (&respipe);
1952 OUTPUT: 1948 OUTPUT:
1953 RETVAL 1949 RETVAL
1954 1950
1955int 1951int
1956poll_cb(...) 1952poll_cb (...)
1957 PROTOTYPE: 1953 PROTOTYPE:
1958 CODE: 1954 CODE:
1959 RETVAL = poll_cb (); 1955 RETVAL = poll_cb ();
1960 OUTPUT: 1956 OUTPUT:
1961 RETVAL 1957 RETVAL
1962 1958
1963void 1959void
1964poll_wait() 1960poll_wait ()
1965 PROTOTYPE:
1966 CODE: 1961 CODE:
1967 poll_wait (); 1962 poll_wait ();
1968 1963
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 1964int
2007nreqs() 1965nreqs ()
2008 PROTOTYPE:
2009 CODE: 1966 CODE:
2010 RETVAL = nreqs; 1967 RETVAL = eio_nreqs ();
2011 OUTPUT: 1968 OUTPUT:
2012 RETVAL 1969 RETVAL
2013 1970
2014int 1971int
2015nready() 1972nready ()
2016 PROTOTYPE:
2017 CODE: 1973 CODE:
2018 RETVAL = get_nready (); 1974 RETVAL = eio_nready ();
2019 OUTPUT: 1975 OUTPUT:
2020 RETVAL 1976 RETVAL
2021 1977
2022int 1978int
2023npending() 1979npending ()
2024 PROTOTYPE:
2025 CODE: 1980 CODE:
2026 RETVAL = get_npending (); 1981 RETVAL = eio_npending ();
2027 OUTPUT: 1982 OUTPUT:
2028 RETVAL 1983 RETVAL
2029 1984
2030int 1985int
2031nthreads() 1986nthreads ()
2032 PROTOTYPE:
2033 CODE: 1987 CODE:
2034 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1988 RETVAL = eio_nthreads ();
2035 RETVAL = started;
2036 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2037 OUTPUT: 1989 OUTPUT:
2038 RETVAL 1990 RETVAL
2039 1991
1992int
1993fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1994 CODE:
1995 RETVAL = posix_fadvise (fh, offset, length, advice);
1996 OUTPUT:
1997 RETVAL
1998
1999IV
2000sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2001 CODE:
2002 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2003 OUTPUT:
2004 RETVAL
2005
2006void
2007mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2008 PPCODE:
2009 sv_clear_foreign (scalar);
2010{
2011 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2012 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2013 if (addr == (void *)-1)
2014 XSRETURN_NO;
2015
2016 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2017
2018 if (!(prot & PROT_WRITE))
2019 SvREADONLY_on (scalar);
2020
2021 XSRETURN_YES;
2022}
2023
2024void
2025munmap (SV *scalar)
2026 CODE:
2027 sv_clear_foreign (scalar);
2028
2029int
2030madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2031 ALIAS:
2032 mprotect = 1
2033 CODE:
2034{
2035 STRLEN svlen;
2036 void *addr = SvPVbyte (scalar, svlen);
2037 STRLEN len = SvUV (length);
2038
2039 if (offset < 0)
2040 offset += svlen;
2041
2042 if (offset < 0 || offset > svlen)
2043 croak ("offset outside of scalar");
2044
2045 if (!SvOK (length) || len + offset > svlen)
2046 len = svlen - offset;
2047
2048 addr = (void *)(((intptr_t)addr) + offset);
2049 eio_page_align (&addr, &len);
2050
2051 switch (ix)
2052 {
2053 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2054 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2055 }
2056}
2057 OUTPUT:
2058 RETVAL
2059
2060int
2061munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2062 CODE:
2063{
2064 STRLEN svlen;
2065 void *addr = SvPVbyte (scalar, svlen);
2066 size_t len = SvUV (length);
2067
2068 if (offset < 0)
2069 offset += svlen;
2070
2071 if (offset < 0 || offset > svlen)
2072 croak ("offset outside of scalar");
2073
2074 if (!SvOK (length) || len + offset > svlen)
2075 len = svlen - offset;
2076
2077 addr = (void *)(((intptr_t)addr) + offset);
2078 eio_page_align (&addr, &len);
2079#if _POSIX_MEMLOCK_RANGE
2080 RETVAL = munlock (addr, len);
2081#else
2082 RETVAL = EIO_ENOSYS ();
2083#endif
2084}
2085 OUTPUT:
2086 RETVAL
2087
2088int
2089munlockall ()
2090 CODE:
2091#if _POSIX_MEMLOCK
2092 munlockall ();
2093#else
2094 RETVAL = EIO_ENOSYS ();
2095#endif
2096 OUTPUT:
2097 RETVAL
2098
2099int
2100splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2101 CODE:
2102{
2103#if HAVE_LINUX_SPLICE
2104 loff_t off_in_, off_out_;
2105 RETVAL = splice (
2106 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2107 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2108 length, flags
2109 );
2110#else
2111 RETVAL = EIO_ENOSYS ();
2112#endif
2113}
2114 OUTPUT:
2115 RETVAL
2116
2117int
2118tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2119 CODE:
2120#if HAVE_LINUX_SPLICE
2121 RETVAL = tee (rfh, wfh, length, flags);
2122#else
2123 RETVAL = EIO_ENOSYS ();
2124#endif
2125 OUTPUT:
2126 RETVAL
2127
2128int
2129pipesize (aio_rfd rfh, int new_size = -1)
2130 PROTOTYPE: $;$
2131 CODE:
2132#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2133 if (new_size >= 0)
2134 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2135 else
2136 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2137#else
2138 errno = ENOSYS;
2139 RETVAL = -1;
2140#endif
2141 OUTPUT:
2142 RETVAL
2143
2144void
2145pipe2 (int flags = 0)
2146 PROTOTYPE: ;$
2147 PPCODE:
2148{
2149 int fd[2];
2150 int res;
2151
2152 if (flags)
2153#if HAVE_PIPE2
2154 res = pipe2 (fd, flags);
2155#else
2156 res = (errno = ENOSYS, -1);
2157#endif
2158 else
2159 res = pipe (fd);
2160
2161 if (!res)
2162 {
2163 EXTEND (SP, 2);
2164 PUSHs (newmortalFH (fd[0], O_RDONLY));
2165 PUSHs (newmortalFH (fd[1], O_WRONLY));
2166 }
2167}
2168
2169void
2170eventfd (unsigned int initval = 0, int flags = 0)
2171 PPCODE:
2172{
2173 int fd;
2174#if HAVE_EVENTFD
2175 fd = eventfd (initval, flags);
2176#else
2177 fd = (errno = ENOSYS, -1);
2178#endif
2179
2180 XPUSHs (newmortalFH (fd, O_RDWR));
2181}
2182
2183UV
2184get_fdlimit ()
2185 CODE:
2186#if HAVE_RLIMITS
2187 struct rlimit rl;
2188 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2189 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2190#endif
2191 XSRETURN_UNDEF;
2192 OUTPUT:
2193 RETVAL
2194
2195void
2196min_fdlimit (UV limit = 0x7fffffffU)
2197 CODE:
2198{
2199#if HAVE_RLIMITS
2200 struct rlimit rl;
2201 rlim_t orig_rlim_max;
2202 UV bit;
2203
2204 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2205 goto fail;
2206
2207 if (rl.rlim_cur == RLIM_INFINITY)
2208 XSRETURN_YES;
2209
2210 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2211
2212 if (rl.rlim_cur < limit)
2213 {
2214 rl.rlim_cur = limit;
2215
2216 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2217 rl.rlim_max = rl.rlim_cur;
2218 }
2219
2220 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2221 XSRETURN_YES;
2222
2223 if (errno == EPERM)
2224 {
2225 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2226 /* our limit overflows a system-wide limit */
2227 /* try an adaptive algorithm, but do not lower the hardlimit */
2228 rl.rlim_max = 0;
2229 for (bit = 0x40000000U; bit; bit >>= 1)
2230 {
2231 rl.rlim_max |= bit;
2232 rl.rlim_cur = rl.rlim_max;
2233
2234 /* nevr decrease the hard limit */
2235 if (rl.rlim_max < orig_rlim_max)
2236 break;
2237
2238 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2239 rl.rlim_max &= ~bit; /* too high, remove bit again */
2240 }
2241
2242 /* now, raise the soft limit to the max permitted */
2243 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2244 {
2245 rl.rlim_cur = rl.rlim_max;
2246 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2247 errno = EPERM;
2248 }
2249 }
2250#endif
2251 fail:
2252 XSRETURN_UNDEF;
2253}
2254
2255void _on_next_submit (SV *cb)
2256 CODE:
2257 SvREFCNT_dec (on_next_submit);
2258 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2259
2040PROTOTYPES: DISABLE 2260PROTOTYPES: DISABLE
2261
2262MODULE = IO::AIO PACKAGE = IO::AIO::WD
2263
2264BOOT:
2265{
2266 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2267 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2268}
2269
2270void
2271DESTROY (SV *self)
2272 CODE:
2273{
2274 aio_wd wd = SvAIO_WD (self);
2275#if HAVE_AT
2276 {
2277 SV *callback = &PL_sv_undef;
2278 dREQ; /* clobbers next_pri :/ */
2279 next_pri = req->pri; /* restore next_pri */
2280 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2281 req->type = EIO_WD_CLOSE;
2282 req->wd = wd;
2283 REQ_SEND;
2284 }
2285#else
2286 eio_wd_close_sync (wd);
2287#endif
2288}
2041 2289
2042MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2290MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2043 2291
2044void 2292void
2045cancel (aio_req_ornot req) 2293cancel (aio_req_ornot req)
2046 CODE: 2294 CODE:
2047 req_cancel (req); 2295 eio_cancel (req);
2048 2296
2049void 2297void
2050cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2298cb (aio_req_ornot req, SV *callback = NO_INIT)
2051 CODE: 2299 PPCODE:
2300{
2301 if (GIMME_V != G_VOID)
2302 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2303
2304 if (items > 1)
2305 {
2306 SV *cb_cv = get_cb (callback);
2307
2052 SvREFCNT_dec (req->callback); 2308 SvREFCNT_dec (req->callback);
2053 req->callback = newSVsv (callback); 2309 req->callback = SvREFCNT_inc (cb_cv);
2310 }
2311}
2054 2312
2055MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2313MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2056 2314
2057void 2315void
2058add (aio_req grp, ...) 2316add (aio_req grp, ...)
2059 PPCODE: 2317 PPCODE:
2060{ 2318{
2061 int i; 2319 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 2320
2067 if (grp->int1 == 2) 2321 if (grp->int1 == 2)
2068 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2322 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2069 2323
2070 for (i = 1; i < items; ++i ) 2324 for (i = 1; i < items; ++i )
2071 { 2325 {
2326 aio_req req;
2327
2072 if (GIMME_V != G_VOID) 2328 if (GIMME_V != G_VOID)
2073 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2329 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2074 2330
2075 req = SvAIO_REQ (ST (i)); 2331 req = SvAIO_REQ (ST (i));
2076 2332
2077 if (req) 2333 if (req)
2078 { 2334 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 } 2335 }
2091} 2336}
2092 2337
2093void 2338void
2094cancel_subs (aio_req_ornot req) 2339cancel_subs (aio_req_ornot req)
… …
2103 AV *av; 2348 AV *av;
2104 2349
2105 grp->errorno = errno; 2350 grp->errorno = errno;
2106 2351
2107 av = newAV (); 2352 av = newAV ();
2353 av_extend (av, items - 1);
2108 2354
2109 for (i = 1; i < items; ++i ) 2355 for (i = 1; i < items; ++i )
2110 av_push (av, newSVsv (ST (i))); 2356 av_push (av, newSVsv (ST (i)));
2111 2357
2112 SvREFCNT_dec (grp->sv1); 2358 SvREFCNT_dec (grp->sv1);
… …
2119 grp->errorno = errorno; 2365 grp->errorno = errorno;
2120 2366
2121void 2367void
2122limit (aio_req grp, int limit) 2368limit (aio_req grp, int limit)
2123 CODE: 2369 CODE:
2124 grp->int2 = limit; 2370 eio_grp_limit (grp, limit);
2125 aio_grp_feed (grp);
2126 2371
2127void 2372void
2128feed (aio_req grp, SV *callback=&PL_sv_undef) 2373feed (aio_req grp, SV *callback = &PL_sv_undef)
2129 CODE: 2374 CODE:
2130{ 2375{
2131 SvREFCNT_dec (grp->sv2); 2376 SvREFCNT_dec (grp->sv2);
2132 grp->sv2 = newSVsv (callback); 2377 grp->sv2 = newSVsv (callback);
2378 grp->feed = aio_grp_feed;
2133 2379
2134 if (grp->int2 <= 0) 2380 if (grp->int2 <= 0)
2135 grp->int2 = 2; 2381 grp->int2 = 2;
2136 2382
2137 aio_grp_feed (grp); 2383 eio_grp_limit (grp, grp->int2);
2138} 2384}
2139 2385

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