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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.102 by root, Sun Jun 3 09:44:17 2007 UTC vs.
Revision 1.257 by root, Tue Jul 17 23:20:09 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 8
9#include "autoconf/config.h"
10
11#include <stddef.h> 9#include <stddef.h>
12#include <stdlib.h> 10#include <stdlib.h>
13#include <errno.h> 11#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 12#include <sys/types.h>
17#include <sys/stat.h> 13#include <sys/stat.h>
18#include <limits.h> 14#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 15#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 16#include <sched.h>
17
18#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
19# include <sys/mman.h>
20#endif
21
22/* the incompetent fool that created musl keeps __linux__, refuses
23 * to implement any linux standard apis, and also has no way to test
24 * for his broken iplementation. don't complain to me if this fails
25 * for you.
26 */
27#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
28# include <linux/fs.h>
29# ifdef FS_IOC_FIEMAP
30# include <linux/types.h>
31# include <linux/fiemap.h>
32# define HAVE_FIEMAP 1
33# endif
34#endif
35
36/* perl namespace pollution */
37#undef VERSION
38
39/* perl stupidly overrides readdir and maybe others */
40/* with thread-unsafe versions, imagine that :( */
41#undef readdir
42#undef opendir
43#undef closedir
44
45#ifdef _WIN32
46
47 // perl overrides all those nice libc functions
48
49 #undef malloc
50 #undef free
51 #undef open
52 #undef read
53 #undef write
54 #undef send
55 #undef recv
56 #undef stat
57 #undef lstat
58 #undef fstat
59 #undef truncate
60 #undef ftruncate
61 #undef open
62 #undef link
63 #undef close
64 #undef unlink
65 #undef mkdir
66 #undef rmdir
67 #undef rename
68 #undef lseek
69 #undef opendir
70 #undef readdir
71 #undef closedir
72 #undef chmod
73 #undef fchmod
74 #undef dup
75 #undef dup2
76 #undef abort
77 #undef pipe
78
79 #define EIO_STRUCT_STAT struct _stati64
80 #define EIO_STRUCT_STATI64
81
82#else
83
84 #include <sys/time.h>
85 #include <sys/select.h>
86 #include <unistd.h>
23#include <utime.h> 87 #include <utime.h>
88 #include <signal.h>
24 89
25#if HAVE_SENDFILE 90 #define EIO_STRUCT_STAT Stat_t
26# if __linux 91
92#endif
93
94/*****************************************************************************/
95
96#if __GNUC__ >= 3
97# define expect(expr,value) __builtin_expect ((expr),(value))
98#else
99# define expect(expr,value) (expr)
100#endif
101
102#define expect_false(expr) expect ((expr) != 0, 0)
103#define expect_true(expr) expect ((expr) != 0, 1)
104
105/*****************************************************************************/
106
107#include "libeio/config.h"
108
109#include "schmorp.h"
110
111#if HAVE_EVENTFD
27# include <sys/sendfile.h> 112# include <sys/eventfd.h>
28# elif __freebsd 113#endif
29# include <sys/socket.h> 114
115#if HAVE_TIMERFD
30# include <sys/uio.h> 116# include <sys/timerfd.h>
31# elif __hpux 117#endif
118
119#if HAVE_RLIMITS
120 #include <sys/time.h>
32# include <sys/socket.h> 121 #include <sys/resource.h>
33# elif __solaris /* not yet */ 122#endif
34# include <sys/sendfile.h> 123
124typedef SV SV8; /* byte-sv, used for argument-checking */
125typedef int aio_rfd; /* read file desriptor */
126typedef int aio_wfd; /* write file descriptor */
127
128static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
129
130#define EIO_REQ_MEMBERS \
131 SV *callback; \
132 SV *sv1, *sv2; \
133 SV *sv3, *sv4; \
134 STRLEN stroffset; \
135 SV *self;
136
137#define EIO_NO_WRAPPERS 1
138
139#include "libeio/eio.h"
140
141static int req_invoke (eio_req *req);
142#define EIO_FINISH(req) req_invoke (req)
143static void req_destroy (eio_req *grp);
144#define EIO_DESTROY(req) req_destroy (req)
145
146#include "libeio/eio.c"
147
148#if !HAVE_POSIX_FADVISE
149# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#if !HAVE_POSIX_MADVISE
153# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
154#endif
155
156#ifndef MAP_ANONYMOUS
157# ifdef MAP_ANON
158# define MAP_ANONYMOUS MAP_ANON
35# else 159# else
36# error sendfile support requested but not available 160# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 161# endif
38#endif 162#endif
39 163
40/* number of seconds after which idle threads exit */ 164/* defines all sorts of constants to 0 unless they are already defined */
41#define IDLE_TIMEOUT 10 165/* also provides const_iv_ and const_niv_ macros for them */
166#include "def0.h"
42 167
43/* used for struct dirent, AIX doesn't provide it */ 168#ifndef makedev
44#ifndef NAME_MAX 169# define makedev(maj,min) (((maj) << 8) | (min))
45# define NAME_MAX 4096
46#endif 170#endif
47 171#ifndef major
48/* buffer size for various temporary buffers */ 172# define major(dev) ((dev) >> 8)
49#define AIO_BUFSIZE 65536
50
51/* use NV for 32 bit perls as it allows larger offsets */
52#if IVSIZE >= 8
53# define SvVAL64 SvIV
54#else
55# define SvVAL64 SvNV
56#endif 173#endif
174#ifndef minor
175# define minor(dev) ((dev) & 0xff)
176#endif
57 177
58#define dBUF \ 178#if PAGESIZE <= 0
59 char *aio_buf; \ 179# define PAGESIZE sysconf (_SC_PAGESIZE)
60 LOCK (wrklock); \ 180#endif
61 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 181
62 UNLOCK (wrklock); \ 182/*****************************************************************************/
63 if (!aio_buf) \ 183
184#if !_POSIX_MAPPED_FILES
185# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
186# define munmap(addr,length) EIO_ENOSYS ()
187#endif
188
189#if !_POSIX_MEMORY_PROTECTION
190# define mprotect(addr,len,prot) EIO_ENOSYS ()
191#endif
192
193#if !MREMAP_MAYMOVE
194# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
195#endif
196
197#define FOREIGN_MAGIC PERL_MAGIC_ext
198
199static int ecb_cold
200mmap_free (pTHX_ SV *sv, MAGIC *mg)
201{
202 int old_errno = errno;
203 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
204 errno = old_errno;
205
206 mg->mg_obj = 0; /* just in case */
207
208 SvREADONLY_off (sv);
209
210 if (SvPVX (sv) != mg->mg_ptr)
211 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
212
213 SvCUR_set (sv, 0);
214 SvPVX (sv) = 0;
215 SvOK_off (sv);
216
64 return -1; 217 return 0;
218}
65 219
66typedef SV SV8; /* byte-sv, used for argument-checking */ 220static MGVTBL mmap_vtbl = {
67 221 0, 0, 0, 0, mmap_free
68enum {
69 REQ_QUIT,
70 REQ_OPEN, REQ_CLOSE,
71 REQ_READ, REQ_WRITE,
72 REQ_READAHEAD, REQ_SENDFILE,
73 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
74 REQ_UTIME, REQ_FUTIME,
75 REQ_CHMOD, REQ_FCHMOD,
76 REQ_CHOWN, REQ_FCHOWN,
77 REQ_FSYNC, REQ_FDATASYNC,
78 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
79 REQ_MKNOD, REQ_READDIR,
80 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
81 REQ_GROUP, REQ_NOP,
82 REQ_BUSY,
83}; 222};
84 223
85#define AIO_REQ_KLASS "IO::AIO::REQ" 224static int ecb_cold
86#define AIO_GRP_KLASS "IO::AIO::GRP" 225sysfree_free (pTHX_ SV *sv, MAGIC *mg)
87
88typedef struct aio_cb
89{ 226{
90 struct aio_cb *volatile next; 227 free (mg->mg_ptr);
228 mg->mg_obj = 0; /* just in case */
91 229
92 SV *callback; 230 SvREADONLY_off (sv);
93 SV *sv1, *sv2;
94 void *ptr1, *ptr2;
95 off_t offs;
96 size_t size;
97 ssize_t result;
98 double nv1, nv2;
99 231
100 STRLEN stroffset; 232 if (SvPVX (sv) != mg->mg_ptr)
101 int type; 233 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
102 int int1, int2, int3;
103 int errorno;
104 mode_t mode; /* open */
105 234
106 unsigned char flags; 235 SvCUR_set (sv, 0);
107 unsigned char pri; 236 SvPVX (sv) = 0;
237 SvOK_off (sv);
108 238
109 SV *self; /* the perl counterpart of this request, if any */ 239 return 0;
110 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 240}
111} aio_cb;
112 241
113enum { 242static MGVTBL sysfree_vtbl = {
114 FLAG_CANCELLED = 0x01, /* request was cancelled */ 243 0, 0, 0, 0, sysfree_free
115 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
117}; 244};
118 245
119typedef aio_cb *aio_req; 246/*****************************************************************************/
120typedef aio_cb *aio_req_ornot;
121 247
122enum { 248/* helper: set scalar to foreign ptr with custom free */
123 PRI_MIN = -4, 249static void
124 PRI_MAX = 4, 250sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
125
126 DEFAULT_PRI = 0,
127 PRI_BIAS = -PRI_MIN,
128 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
129};
130
131#define AIO_TICKS ((1000000 + 1023) >> 10)
132
133static unsigned int max_poll_time = 0;
134static unsigned int max_poll_reqs = 0;
135
136/* calculcate time difference in ~1/AIO_TICKS of a second */
137static int tvdiff (struct timeval *tv1, struct timeval *tv2)
138{ 251{
139 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 252 sv_force_normal (sv);
140 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
141}
142 253
143static thread_t main_tid; 254 /* we store the length in mg_obj, as namlen is I32 :/ */
144static int main_sig; 255 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
145static int block_sig_level; 256 ->mg_obj = (SV *)length;
146 257
147void block_sig () 258 SvUPGRADE (sv, SVt_PV); /* nop... */
148{
149 sigset_t ss;
150 259
151 if (block_sig_level++) 260 if (SvLEN (sv))
261 Safefree (SvPVX (sv));
262
263 SvPVX (sv) = (char *)addr;
264 SvCUR_set (sv, length);
265 SvLEN_set (sv, 0);
266 SvPOK_only (sv);
267}
268
269static void
270sv_clear_foreign (SV *sv)
271{
272 /* todo: iterate over magic and only free ours, but of course */
273 /* the perl5porters will call that (correct) behaviour buggy */
274 sv_unmagic (sv, FOREIGN_MAGIC);
275}
276
277/*****************************************************************************/
278
279static void
280fiemap (eio_req *req)
281{
282 req->result = -1;
283
284#if HAVE_FIEMAP
285 /* assume some c99 */
286 struct fiemap *fiemap = 0;
287 size_t end_offset;
288 int count = req->int3;
289
290 req->flags |= EIO_FLAG_PTR1_FREE;
291
292 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
293 /* increase in 3.5kb steps */
294 if (count < 0)
295 count = 8;
296
297 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
298 errno = ENOMEM;
299 if (!fiemap)
152 return; 300 return;
153 301
154 if (!main_sig) 302 req->ptr1 = fiemap;
303
304 fiemap->fm_start = req->offs;
305 fiemap->fm_length = req->size;
306 fiemap->fm_flags = req->int2;
307 fiemap->fm_extent_count = count;
308
309 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
155 return; 310 return;
156 311
157 sigemptyset (&ss); 312 if (req->int3 >= 0 /* not autosizing */
158 sigaddset (&ss, main_sig); 313 || !fiemap->fm_mapped_extents /* no more extents */
159 pthread_sigmask (SIG_BLOCK, &ss, 0); 314 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
160} 315 goto done;
161 316
162void unblock_sig () 317 /* else we have to loop -
163{ 318 * it would be tempting (actually I tried that first) to just query the
164 sigset_t ss; 319 * number of extents needed, but linux often feels like not returning all
320 * extents, without telling us it left any out. this complicates
321 * this quite a bit.
322 */
165 323
166 if (--block_sig_level) 324 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
167 return;
168 325
169 if (!main_sig) 326 for (;;)
170 return;
171
172 sigemptyset (&ss);
173 sigaddset (&ss, main_sig);
174 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
175}
176
177static int next_pri = DEFAULT_PRI + PRI_BIAS;
178
179static unsigned int started, idle, wanted;
180
181/* worker threads management */
182static mutex_t wrklock = MUTEX_INIT;
183
184typedef struct worker {
185 /* locked by wrklock */
186 struct worker *prev, *next;
187
188 thread_t tid;
189
190 /* locked by reslock, reqlock or wrklock */
191 aio_req req; /* currently processed request */
192 void *dbuf;
193 DIR *dirp;
194} worker;
195
196static worker wrk_first = { &wrk_first, &wrk_first, 0 };
197
198static void worker_clear (worker *wrk)
199{
200 if (wrk->dirp)
201 { 327 {
202 closedir (wrk->dirp); 328 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
203 wrk->dirp = 0; 329 char scratch[3072];
204 } 330 struct fiemap *incmap = (struct fiemap *)scratch;
205 331
206 if (wrk->dbuf) 332 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
207 { 333 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
208 free (wrk->dbuf); 334 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
209 wrk->dbuf = 0; 335 incmap->fm_flags = fiemap->fm_flags;
210 } 336 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
211}
212 337
213static void worker_free (worker *wrk) 338 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
214{
215 wrk->next->prev = wrk->prev;
216 wrk->prev->next = wrk->next;
217
218 free (wrk);
219}
220
221static volatile unsigned int nreqs, nready, npending;
222static volatile unsigned int max_idle = 4;
223static volatile unsigned int max_outstanding = 0xffffffff;
224static int respipe [2];
225
226static mutex_t reslock = MUTEX_INIT;
227static mutex_t reqlock = MUTEX_INIT;
228static cond_t reqwait = COND_INIT;
229
230#if WORDACCESS_UNSAFE
231
232static unsigned int get_nready ()
233{
234 unsigned int retval;
235
236 LOCK (reqlock);
237 retval = nready;
238 UNLOCK (reqlock);
239
240 return retval;
241}
242
243static unsigned int get_npending ()
244{
245 unsigned int retval;
246
247 LOCK (reslock);
248 retval = npending;
249 UNLOCK (reslock);
250
251 return retval;
252}
253
254static unsigned int get_nthreads ()
255{
256 unsigned int retval;
257
258 LOCK (wrklock);
259 retval = started;
260 UNLOCK (wrklock);
261
262 return retval;
263}
264
265#else
266
267# define get_nready() nready
268# define get_npending() npending
269# define get_nthreads() started
270
271#endif
272
273/*
274 * a somewhat faster data structure might be nice, but
275 * with 8 priorities this actually needs <20 insns
276 * per shift, the most expensive operation.
277 */
278typedef struct {
279 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
280 int size;
281} reqq;
282
283static reqq req_queue;
284static reqq res_queue;
285
286int reqq_push (reqq *q, aio_req req)
287{
288 int pri = req->pri;
289 req->next = 0;
290
291 if (q->qe[pri])
292 {
293 q->qe[pri]->next = req;
294 q->qe[pri] = req;
295 }
296 else
297 q->qe[pri] = q->qs[pri] = req;
298
299 return q->size++;
300}
301
302aio_req reqq_shift (reqq *q)
303{
304 int pri;
305
306 if (!q->size)
307 return 0; 339 return;
308 340
309 --q->size; 341 if (!incmap->fm_mapped_extents)
342 goto done;
310 343
311 for (pri = NUM_PRI; pri--; ) 344 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
312 { 345 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
313 aio_req req = q->qs[pri]; 346 errno = ENOMEM;
314
315 if (req) 347 if (!fiemap)
348 return;
349
350 req->ptr1 = fiemap;
351
352 for (count = 0; count < incmap->fm_mapped_extents; ++count)
316 { 353 {
317 if (!(q->qs[pri] = req->next)) 354 struct fiemap_extent *e = incmap->fm_extents + count;
318 q->qe[pri] = 0;
319 355
320 return req; 356 if (e->fe_logical + e->fe_length >= end_offset)
357 goto done;
358
359 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
360
361 if (e->fe_flags & FIEMAP_EXTENT_LAST)
362 goto done;
363
321 } 364 }
322 } 365 }
323 366
324 abort (); 367done:
325} 368 req->result = 0;
326 369
327static int poll_cb (); 370#else
328static int req_invoke (aio_req req); 371 errno = ENOSYS;
372#endif
373}
374
375/*****************************************************************************/
376
377enum {
378 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
379};
380
381typedef eio_req *aio_req;
382typedef eio_req *aio_req_ornot;
383typedef eio_wd aio_wd;
384
385static SV *on_next_submit;
386static int next_pri = EIO_PRI_DEFAULT;
387static int max_outstanding;
388
389static s_epipe respipe;
390
329static void req_destroy (aio_req req); 391static void req_destroy (aio_req req);
330static void req_cancel (aio_req req); 392static void req_cancel (aio_req req);
331 393
394static void
395want_poll (void)
396{
397 /* write a dummy byte to the pipe so fh becomes ready */
398 s_epipe_signal (&respipe);
399}
400
401static void
402done_poll (void)
403{
404 /* read any signals sent by the worker threads */
405 s_epipe_drain (&respipe);
406}
407
332/* must be called at most once */ 408/* must be called at most once */
333static SV *req_sv (aio_req req, const char *klass) 409static SV *
410req_sv (aio_req req, HV *stash)
334{ 411{
335 if (!req->self) 412 if (!req->self)
336 { 413 {
337 req->self = (SV *)newHV (); 414 req->self = (SV *)newHV ();
338 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 415 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
339 } 416 }
340 417
341 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 418 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
342} 419}
343 420
344static aio_req SvAIO_REQ (SV *sv) 421static SV *
422newSVaio_wd (aio_wd wd)
423{
424 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
425}
426
427static aio_req
428SvAIO_REQ (SV *sv)
345{ 429{
346 MAGIC *mg; 430 MAGIC *mg;
347 431
348 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 432 if (!SvROK (sv)
433 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
434 || (SvSTASH (SvRV (sv)) != aio_grp_stash
435 && SvSTASH (SvRV (sv)) != aio_req_stash
436 && !sv_derived_from (sv, "IO::AIO::REQ")))
349 croak ("object of class " AIO_REQ_KLASS " expected"); 437 croak ("object of class IO::AIO::REQ expected");
350 438
351 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 439 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
352 440
353 return mg ? (aio_req)mg->mg_ptr : 0; 441 return mg ? (aio_req)mg->mg_ptr : 0;
354} 442}
355 443
444static aio_wd
445SvAIO_WD (SV *sv)
446{
447 if (!SvROK (sv)
448 || SvTYPE (SvRV (sv)) != SVt_PVMG
449 || SvSTASH (SvRV (sv)) != aio_wd_stash)
450 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
451
452 return (aio_wd)(long)SvIVX (SvRV (sv));
453}
454
455static SV *
456newmortalFH (int fd, int flags)
457{
458 if (fd < 0)
459 return &PL_sv_undef;
460
461 GV *gv = (GV *)sv_newmortal ();
462 char sym[64];
463 int symlen;
464
465 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
466 gv_init (gv, aio_stash, sym, symlen, 0);
467
468 symlen = snprintf (
469 sym,
470 sizeof (sym),
471 "%s&=%d",
472 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
473 fd
474 );
475
476 return do_open (gv, sym, symlen, 0, 0, 0, 0)
477 ? (SV *)gv : &PL_sv_undef;
478}
479
480static void
356static void aio_grp_feed (aio_req grp) 481aio_grp_feed (aio_req grp)
357{ 482{
358 block_sig (); 483 if (grp->sv2 && SvOK (grp->sv2))
359
360 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
361 { 484 {
362 int old_len = grp->size;
363
364 if (grp->sv2 && SvOK (grp->sv2))
365 {
366 dSP; 485 dSP;
367 486
368 ENTER; 487 ENTER;
369 SAVETMPS; 488 SAVETMPS;
370 PUSHMARK (SP); 489 PUSHMARK (SP);
371 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 490 XPUSHs (req_sv (grp, aio_grp_stash));
372 PUTBACK; 491 PUTBACK;
373 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 492 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
374 SPAGAIN; 493 SPAGAIN;
375 FREETMPS; 494 FREETMPS;
376 LEAVE; 495 LEAVE;
377 }
378
379 /* stop if no progress has been made */
380 if (old_len == grp->size)
381 {
382 SvREFCNT_dec (grp->sv2);
383 grp->sv2 = 0;
384 break;
385 }
386 } 496 }
387
388 unblock_sig ();
389} 497}
390 498
391static void aio_grp_dec (aio_req grp) 499static void
500req_submit (eio_req *req)
392{ 501{
393 --grp->size; 502 eio_submit (req);
394 503
395 /* call feeder, if applicable */ 504 if (expect_false (on_next_submit))
396 aio_grp_feed (grp);
397
398 /* finish, if done */
399 if (!grp->size && grp->int1)
400 { 505 {
401 block_sig (); 506 dSP;
507 SV *cb = sv_2mortal (on_next_submit);
402 508
403 if (!req_invoke (grp)) 509 on_next_submit = 0;
404 {
405 req_destroy (grp);
406 unblock_sig ();
407 croak (0);
408 }
409 510
410 req_destroy (grp); 511 PUSHMARK (SP);
411 unblock_sig (); 512 PUTBACK;
513 call_sv (cb, G_DISCARD | G_EVAL);
412 } 514 }
413} 515}
414 516
517static int
415static int req_invoke (aio_req req) 518req_invoke (eio_req *req)
416{ 519{
417 dSP;
418
419 if (req->flags & FLAG_SV2_RO_OFF) 520 if (req->flags & FLAG_SV2_RO_OFF)
420 SvREADONLY_off (req->sv2); 521 SvREADONLY_off (req->sv2);
421 522
422 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 523 if (!EIO_CANCELLED (req) && req->callback)
423 { 524 {
525 dSP;
526 static SV *sv_result_cache; /* caches the result integer SV */
527 SV *sv_result;
528
424 ENTER; 529 ENTER;
425 SAVETMPS; 530 SAVETMPS;
426 PUSHMARK (SP); 531 PUSHMARK (SP);
427 EXTEND (SP, 1); 532 EXTEND (SP, 1);
428 533
534 /* do not recreate the result IV from scratch each time */
535 if (expect_true (sv_result_cache))
536 {
537 sv_result = sv_result_cache; sv_result_cache = 0;
538 SvIV_set (sv_result, req->result);
539 SvIOK_only (sv_result);
540 }
541 else
542 {
543 sv_result = newSViv (req->result);
544 SvREADONLY_on (sv_result);
545 }
546
429 switch (req->type) 547 switch (req->type)
430 { 548 {
549 case EIO_WD_OPEN:
550 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
551 break;
552
431 case REQ_READDIR: 553 case EIO_READDIR:
432 { 554 {
433 SV *rv = &PL_sv_undef; 555 SV *rv = &PL_sv_undef;
434 556
435 if (req->result >= 0) 557 if (req->result >= 0)
436 { 558 {
437 int i; 559 int i;
438 char *buf = req->ptr2; 560 char *names = (char *)req->ptr2;
561 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
439 AV *av = newAV (); 562 AV *av = newAV ();
440 563
441 av_extend (av, req->result - 1); 564 av_extend (av, req->result - 1);
442 565
443 for (i = 0; i < req->result; ++i) 566 for (i = 0; i < req->result; ++i)
444 { 567 {
445 SV *sv = newSVpv (buf, 0); 568 if (req->int1 & EIO_READDIR_DENTS)
569 {
570 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
446 571
572 if (req->int1 & EIO_READDIR_CUSTOM2)
573 {
574 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
575 AV *avent = newAV ();
576
577 av_extend (avent, 2);
578
579 if (!sv_type [ent->type])
580 {
581 sv_type [ent->type] = newSViv (ent->type);
582 SvREADONLY_on (sv_type [ent->type]);
583 }
584
585 av_store (avent, 0, namesv);
586 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
587 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
588
589 av_store (av, i, newRV_noinc ((SV *)avent));
590 }
591 else
447 av_store (av, i, sv); 592 av_store (av, i, namesv);
593
594 ++ent;
595 }
596 else
597 {
598 SV *name = newSVpv (names, 0);
599 av_store (av, i, name);
448 buf += SvCUR (sv) + 1; 600 names += SvCUR (name) + 1;
601 }
449 } 602 }
450 603
451 rv = sv_2mortal (newRV_noinc ((SV *)av)); 604 rv = sv_2mortal (newRV_noinc ((SV *)av));
452 } 605 }
453 606
454 PUSHs (rv); 607 PUSHs (rv);
608
609 if (req->int1 & EIO_READDIR_CUSTOM1)
610 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
455 } 611 }
456 break; 612 break;
457 613
458 case REQ_OPEN: 614 case EIO_OPEN:
615 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
616 break;
617
618 case EIO_STATVFS:
619 case EIO_FSTATVFS:
459 { 620 {
460 /* convert fd to fh */ 621 SV *rv = &PL_sv_undef;
461 SV *fh; 622
623#ifndef _WIN32
624 if (req->result >= 0)
625 {
626 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
627 HV *hv = newHV ();
628 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
629 * chooses to make it a struct.
630 */
631 unsigned long fsid = 0;
632 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
462 633
463 PUSHs (sv_2mortal (newSViv (req->result))); 634 rv = sv_2mortal (newRV_noinc ((SV *)hv));
464 PUTBACK;
465 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
466 SPAGAIN;
467 635
468 fh = POPs; 636 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
469 PUSHMARK (SP); 637 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
638 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
639 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
640 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
641 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
642 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
643 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
644 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
645 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
646 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
647 }
648#endif
649
470 XPUSHs (fh); 650 PUSHs (rv);
471 } 651 }
652
472 break; 653 break;
473 654
474 case REQ_GROUP: 655 case EIO_GROUP:
475 req->int1 = 2; /* mark group as finished */ 656 req->int1 = 2; /* mark group as finished */
476 657
477 if (req->sv1) 658 if (req->sv1)
478 { 659 {
479 int i; 660 int i;
… …
483 for (i = 0; i <= AvFILL (av); ++i) 664 for (i = 0; i <= AvFILL (av); ++i)
484 PUSHs (*av_fetch (av, i, 0)); 665 PUSHs (*av_fetch (av, i, 0));
485 } 666 }
486 break; 667 break;
487 668
488 case REQ_NOP: 669 case EIO_NOP:
489 case REQ_BUSY: 670 case EIO_BUSY:
490 break; 671 break;
491 672
492 case REQ_READLINK: 673 case EIO_READLINK:
674 case EIO_REALPATH:
493 if (req->result > 0) 675 if (req->result > 0)
676 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
677 break;
678
679 case EIO_STAT:
680 case EIO_LSTAT:
681 case EIO_FSTAT:
682 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
683
684 if (!(PL_laststatval = req->result))
685 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
686 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
687
688 PUSHs (sv_result);
689 break;
690
691 case EIO_SEEK:
692 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
693 break;
694
695 case EIO_READ:
696 {
697 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
698 *SvEND (req->sv2) = 0;
699 SvPOK_only (req->sv2);
700 SvSETMAGIC (req->sv2);
701 PUSHs (sv_result);
702 }
703 break;
704
705 case EIO_SLURP:
706 {
707 if (req->result >= 0)
708 {
709 /* if length was originally not known, we steal the malloc'ed memory */
710 if (req->flags & EIO_FLAG_PTR2_FREE)
711 {
712 req->flags &= ~EIO_FLAG_PTR2_FREE;
713 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
714 }
715 else
716 {
717 SvCUR_set (req->sv2, req->result);
718 *SvEND (req->sv2) = 0;
719 SvPOK_only (req->sv2);
720 }
721
722 SvSETMAGIC (req->sv2);
723 }
724
725 PUSHs (sv_result);
726 }
727 break;
728
729 case EIO_CUSTOM:
730 if (req->feed == fiemap)
494 { 731 {
495 SvCUR_set (req->sv2, req->result); 732#if HAVE_FIEMAP
496 *SvEND (req->sv2) = 0;
497 PUSHs (req->sv2); 733 if (!req->result)
734 {
735 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
736
737 if (fiemap->fm_extent_count)
738 {
739 AV *av = newAV ();
740 int i;
741
742 while (fiemap->fm_mapped_extents)
743 {
744 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
745 AV *ext_av = newAV ();
746
747 av_store (ext_av, 3, newSVuv (extent->fe_flags));
748 av_store (ext_av, 2, newSVval64 (extent->fe_length));
749 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
750 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
751
752 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
753 }
754
755 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
756 }
757 else
758 {
759 SvIV_set (sv_result, fiemap->fm_mapped_extents);
760 PUSHs (sv_result);
761 }
762 }
763#endif
498 } 764 }
765 else
766 PUSHs (sv_result);
499 break; 767 break;
500 768
501 case REQ_STAT: 769 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
502 case REQ_LSTAT: 770 if (req->result > 0)
503 case REQ_FSTAT: 771 SvIV_set (sv_result, 0);
504 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 772 /* FALLTHROUGH */
505 PL_laststatval = req->result;
506 PL_statcache = *(Stat_t *)(req->ptr2);
507 PUSHs (sv_2mortal (newSViv (req->result)));
508 break;
509
510 case REQ_READ:
511 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
512 *SvEND (req->sv2) = 0;
513 PUSHs (sv_2mortal (newSViv (req->result)));
514 break;
515 773
516 default: 774 default:
517 PUSHs (sv_2mortal (newSViv (req->result))); 775 PUSHs (sv_result);
518 break; 776 break;
519 } 777 }
520 778
521 errno = req->errorno; 779 errno = req->errorno;
522 780
523 PUTBACK; 781 PUTBACK;
524 call_sv (req->callback, G_VOID | G_EVAL); 782 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
525 SPAGAIN; 783 SPAGAIN;
784
785 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
786 SvREFCNT_dec (sv_result);
787 else
788 sv_result_cache = sv_result;
526 789
527 FREETMPS; 790 FREETMPS;
528 LEAVE; 791 LEAVE;
792
793 PUTBACK;
529 } 794 }
530 795
531 if (req->grp)
532 {
533 aio_req grp = req->grp;
534
535 /* unlink request */
536 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
537 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
538
539 if (grp->grp_first == req)
540 grp->grp_first = req->grp_next;
541
542 aio_grp_dec (grp);
543 }
544
545 return !SvTRUE (ERRSV); 796 return !!SvTRUE (ERRSV);
546} 797}
547 798
799static void
548static void req_destroy (aio_req req) 800req_destroy (aio_req req)
549{ 801{
550 if (req->self) 802 if (req->self)
551 { 803 {
552 sv_unmagic (req->self, PERL_MAGIC_ext); 804 sv_unmagic (req->self, PERL_MAGIC_ext);
553 SvREFCNT_dec (req->self); 805 SvREFCNT_dec (req->self);
554 } 806 }
555 807
556 SvREFCNT_dec (req->sv1); 808 SvREFCNT_dec (req->sv1);
557 SvREFCNT_dec (req->sv2); 809 SvREFCNT_dec (req->sv2);
810 SvREFCNT_dec (req->sv3);
811 SvREFCNT_dec (req->sv4);
558 SvREFCNT_dec (req->callback); 812 SvREFCNT_dec (req->callback);
559 813
560 if (req->flags & FLAG_PTR2_FREE)
561 free (req->ptr2);
562
563 Safefree (req); 814 free (req);
564} 815}
565 816
817static void
566static void req_cancel_subs (aio_req grp) 818req_cancel_subs (aio_req grp)
567{ 819{
568 aio_req sub;
569
570 if (grp->type != REQ_GROUP) 820 if (grp->type != EIO_GROUP)
571 return; 821 return;
572 822
573 SvREFCNT_dec (grp->sv2); 823 SvREFCNT_dec (grp->sv2);
574 grp->sv2 = 0; 824 grp->sv2 = 0;
575 825
576 for (sub = grp->grp_first; sub; sub = sub->grp_next) 826 eio_grp_cancel (grp);
577 req_cancel (sub);
578} 827}
579 828
580static void req_cancel (aio_req req) 829static void ecb_cold
830create_respipe (void)
581{ 831{
582 req->flags |= FLAG_CANCELLED; 832 if (s_epipe_renew (&respipe))
583 833 croak ("IO::AIO: unable to initialize result pipe");
584 req_cancel_subs (req);
585} 834}
586 835
587static void *aio_proc (void *arg); 836static void
588 837poll_wait (void)
589static void start_thread (void)
590{ 838{
591 worker *wrk = calloc (1, sizeof (worker));
592
593 if (!wrk)
594 croak ("unable to allocate worker thread data");
595
596 LOCK (wrklock);
597
598 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
599 {
600 wrk->prev = &wrk_first;
601 wrk->next = wrk_first.next;
602 wrk_first.next->prev = wrk;
603 wrk_first.next = wrk;
604 ++started;
605 }
606 else
607 free (wrk);
608
609 UNLOCK (wrklock);
610}
611
612static void maybe_start_thread ()
613{
614 if (get_nthreads () >= wanted)
615 return;
616
617 /* todo: maybe use idle here, but might be less exact */
618 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
619 return;
620
621 start_thread ();
622}
623
624static void req_send (aio_req req)
625{
626 block_sig ();
627
628 ++nreqs;
629
630 LOCK (reqlock);
631 ++nready;
632 reqq_push (&req_queue, req);
633 COND_SIGNAL (reqwait);
634 UNLOCK (reqlock);
635
636 unblock_sig ();
637
638 maybe_start_thread ();
639}
640
641static void end_thread (void)
642{
643 aio_req req;
644
645 Newz (0, req, 1, aio_cb);
646
647 req->type = REQ_QUIT;
648 req->pri = PRI_MAX + PRI_BIAS;
649
650 LOCK (reqlock);
651 reqq_push (&req_queue, req);
652 COND_SIGNAL (reqwait);
653 UNLOCK (reqlock);
654
655 LOCK (wrklock);
656 --started;
657 UNLOCK (wrklock);
658}
659
660static void set_max_idle (int nthreads)
661{
662 if (WORDACCESS_UNSAFE) LOCK (reqlock);
663 max_idle = nthreads <= 0 ? 1 : nthreads;
664 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
665}
666
667static void min_parallel (int nthreads)
668{
669 if (wanted < nthreads)
670 wanted = nthreads;
671}
672
673static void max_parallel (int nthreads)
674{
675 if (wanted > nthreads)
676 wanted = nthreads;
677
678 while (started > wanted)
679 end_thread ();
680}
681
682static void poll_wait ()
683{
684 fd_set rfd;
685
686 while (nreqs) 839 while (eio_nreqs ())
687 { 840 {
688 int size; 841 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 842
843 X_LOCK (EIO_POOL->reslock);
690 size = res_queue.size; 844 size = EIO_POOL->res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 845 X_UNLOCK (EIO_POOL->reslock);
692 846
693 if (size) 847 if (size)
694 return; 848 return;
695 849
696 maybe_start_thread (); 850 etp_maybe_start_thread (EIO_POOL);
697 851
698 FD_ZERO(&rfd); 852 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 853 }
703} 854}
704 855
705static int poll_cb () 856static int
857poll_cb (void)
706{ 858{
707 dSP;
708 int count = 0;
709 int maxreqs = max_poll_reqs;
710 int do_croak = 0;
711 struct timeval tv_start, tv_now;
712 aio_req req;
713
714 if (max_poll_time)
715 gettimeofday (&tv_start, 0);
716
717 block_sig ();
718
719 for (;;) 859 for (;;)
720 { 860 {
721 for (;;) 861 int res = eio_poll ();
862
863 if (res > 0)
864 croak (0);
865
866 if (!max_outstanding || max_outstanding > eio_nreqs ())
867 return res;
868
869 poll_wait ();
870 }
871}
872
873static void ecb_cold
874reinit (void)
875{
876 create_respipe ();
877
878 if (eio_init (want_poll, done_poll) < 0)
879 croak ("IO::AIO: unable to initialise eio library");
880}
881
882/*****************************************************************************/
883
884static SV *
885get_cb (SV *cb_sv)
886{
887 SvGETMAGIC (cb_sv);
888 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
889}
890
891static aio_req ecb_noinline
892dreq (SV *callback)
893{
894 SV *cb_cv;
895 aio_req req;
896 int req_pri = next_pri;
897 next_pri = EIO_PRI_DEFAULT;
898
899 cb_cv = get_cb (callback);
900
901 req = calloc (sizeof (*req), 1);
902 if (!req)
903 croak ("out of memory during eio_req allocation");
904
905 req->callback = SvREFCNT_inc (cb_cv);
906 req->pri = req_pri;
907
908 return req;
909}
910
911#define dREQ \
912 aio_req req = dreq (callback); \
913
914#define REQ_SEND \
915 PUTBACK; \
916 req_submit (req); \
917 SPAGAIN; \
918 \
919 if (GIMME_V != G_VOID) \
920 XPUSHs (req_sv (req, aio_req_stash));
921
922ecb_inline void
923req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
924{
925 if (expect_false (SvROK (path)))
926 {
927 SV *rv = SvRV (path);
928 SV *wdob;
929
930 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
722 { 931 {
723 maybe_start_thread (); 932 path = AvARRAY (rv)[1];
933 wdob = AvARRAY (rv)[0];
724 934
725 LOCK (reslock); 935 if (SvOK (wdob))
726 req = reqq_shift (&res_queue);
727
728 if (req)
729 { 936 {
730 --npending; 937 *wd = SvAIO_WD (wdob);
731 938 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
732 if (!res_queue.size)
733 {
734 /* read any signals sent by the worker threads */
735 char buf [4];
736 while (read (respipe [0], buf, 4) == 4)
737 ;
738 }
739 }
740
741 UNLOCK (reslock);
742
743 if (!req)
744 break;
745
746 --nreqs;
747
748 if (req->type == REQ_GROUP && req->size)
749 {
750 req->int1 = 1; /* mark request as delayed */
751 continue;
752 } 939 }
753 else 940 else
754 { 941 *wd = EIO_INVALID_WD;
755 if (!req_invoke (req))
756 {
757 req_destroy (req);
758 unblock_sig ();
759 croak (0);
760 }
761
762 count++;
763 }
764
765 req_destroy (req);
766
767 if (maxreqs && !--maxreqs)
768 break;
769
770 if (max_poll_time)
771 {
772 gettimeofday (&tv_now, 0);
773
774 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
775 break;
776 }
777 } 942 }
943 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
944 {
945 *wd = (aio_wd)(long)SvIVX (rv);
946 *wdsv = SvREFCNT_inc_NN (rv);
947 *ptr = ".";
948 return; /* path set to "." */
949 }
950 else
951 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
952 }
778 953
779 if (nreqs <= max_outstanding) 954 *pathsv = newSVsv (path);
955 *ptr = SvPVbyte_nolen (*pathsv);
956}
957
958static void ecb_noinline
959req_set_path1 (aio_req req, SV *path)
960{
961 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
962}
963
964static void ecb_noinline
965req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
966{
967 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
968
969 switch (SvTYPE (rv))
970 {
971 case SVt_PVIO:
972 case SVt_PVLV:
973 case SVt_PVGV:
974 req->type = type_fh;
975 req->sv1 = newSVsv (fh_or_path);
976 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
780 break; 977 break;
781 978
782 poll_wait (); 979 default:
783 980 req->type = type_path;
784 ++maxreqs; 981 req_set_path1 (req, fh_or_path);
982 break;
785 } 983 }
786
787 unblock_sig ();
788 return count;
789}
790
791static void create_pipe ()
792{
793 if (pipe (respipe))
794 croak ("unable to initialize result pipe");
795
796 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
797 croak ("cannot set result pipe to nonblocking mode");
798
799 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
800 croak ("cannot set result pipe to nonblocking mode");
801} 984}
802 985
803/*****************************************************************************/ 986/*****************************************************************************/
804/* work around various missing functions */
805 987
806#if !HAVE_PREADWRITE 988static void
807# define pread aio_pread 989ts_set (struct timespec *ts, NV value)
808# define pwrite aio_pwrite
809
810/*
811 * make our pread/pwrite safe against themselves, but not against
812 * normal read/write by using a mutex. slows down execution a lot,
813 * but that's your problem, not mine.
814 */
815static mutex_t preadwritelock = MUTEX_INIT;
816
817static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
818{ 990{
819 ssize_t res; 991 ts->tv_sec = value;
820 off_t ooffset; 992 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
821
822 LOCK (preadwritelock);
823 ooffset = lseek (fd, 0, SEEK_CUR);
824 lseek (fd, offset, SEEK_SET);
825 res = read (fd, buf, count);
826 lseek (fd, ooffset, SEEK_SET);
827 UNLOCK (preadwritelock);
828
829 return res;
830} 993}
831 994
832static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 995static NV
996ts_get (const struct timespec *ts)
833{ 997{
834 ssize_t res; 998 return ts->tv_sec + ts->tv_nsec * 1e-9;
835 off_t ooffset;
836
837 LOCK (preadwritelock);
838 ooffset = lseek (fd, 0, SEEK_CUR);
839 lseek (fd, offset, SEEK_SET);
840 res = write (fd, buf, count);
841 lseek (fd, offset, SEEK_SET);
842 UNLOCK (preadwritelock);
843
844 return res;
845}
846#endif
847
848#ifndef HAVE_FUTIMES
849
850# define utimes(path,times) aio_utimes (path, times)
851# define futimes(fd,times) aio_futimes (fd, times)
852
853int aio_utimes (const char *filename, const struct timeval times[2])
854{
855 if (times)
856 {
857 struct utimbuf buf;
858
859 buf.actime = times[0].tv_sec;
860 buf.modtime = times[1].tv_sec;
861
862 return utime (filename, &buf);
863 }
864 else
865 return utime (filename, 0);
866}
867
868int aio_futimes (int fd, const struct timeval tv[2])
869{
870 errno = ENOSYS;
871 return -1;
872}
873
874#endif
875
876#if !HAVE_FDATASYNC
877# define fdatasync fsync
878#endif
879
880#if !HAVE_READAHEAD
881# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
882
883static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
884{
885 dBUF;
886
887 while (count > 0)
888 {
889 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
890
891 pread (fd, aio_buf, len, offset);
892 offset += len;
893 count -= len;
894 }
895
896 errno = 0;
897}
898
899#endif
900
901#if !HAVE_READDIR_R
902# define readdir_r aio_readdir_r
903
904static mutex_t readdirlock = MUTEX_INIT;
905
906static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
907{
908 struct dirent *e;
909 int errorno;
910
911 LOCK (readdirlock);
912
913 e = readdir (dirp);
914 errorno = errno;
915
916 if (e)
917 {
918 *res = ent;
919 strcpy (ent->d_name, e->d_name);
920 }
921 else
922 *res = 0;
923
924 UNLOCK (readdirlock);
925
926 errno = errorno;
927 return e ? 0 : -1;
928}
929#endif
930
931/* sendfile always needs emulation */
932static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
933{
934 ssize_t res;
935
936 if (!count)
937 return 0;
938
939#if HAVE_SENDFILE
940# if __linux
941 res = sendfile (ofd, ifd, &offset, count);
942
943# elif __freebsd
944 /*
945 * Of course, the freebsd sendfile is a dire hack with no thoughts
946 * wasted on making it similar to other I/O functions.
947 */
948 {
949 off_t sbytes;
950 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
951
952 if (res < 0 && sbytes)
953 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
954 res = sbytes;
955 }
956
957# elif __hpux
958 res = sendfile (ofd, ifd, offset, count, 0, 0);
959
960# elif __solaris
961 {
962 struct sendfilevec vec;
963 size_t sbytes;
964
965 vec.sfv_fd = ifd;
966 vec.sfv_flag = 0;
967 vec.sfv_off = offset;
968 vec.sfv_len = count;
969
970 res = sendfilev (ofd, &vec, 1, &sbytes);
971
972 if (res < 0 && sbytes)
973 res = sbytes;
974 }
975
976# endif
977#else
978 res = -1;
979 errno = ENOSYS;
980#endif
981
982 if (res < 0
983 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
984#if __solaris
985 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
986#endif
987 )
988 )
989 {
990 /* emulate sendfile. this is a major pain in the ass */
991 dBUF;
992
993 res = 0;
994
995 while (count)
996 {
997 ssize_t cnt;
998
999 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1000
1001 if (cnt <= 0)
1002 {
1003 if (cnt && !res) res = -1;
1004 break;
1005 }
1006
1007 cnt = write (ofd, aio_buf, cnt);
1008
1009 if (cnt <= 0)
1010 {
1011 if (cnt && !res) res = -1;
1012 break;
1013 }
1014
1015 offset += cnt;
1016 res += cnt;
1017 count -= cnt;
1018 }
1019 }
1020
1021 return res;
1022}
1023
1024/* read a full directory */
1025static void scandir_ (aio_req req, worker *self)
1026{
1027 DIR *dirp;
1028 union
1029 {
1030 struct dirent d;
1031 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1032 } *u;
1033 struct dirent *entp;
1034 char *name, *names;
1035 int memlen = 4096;
1036 int memofs = 0;
1037 int res = 0;
1038 int errorno;
1039
1040 LOCK (wrklock);
1041 self->dirp = dirp = opendir (req->ptr1);
1042 self->dbuf = u = malloc (sizeof (*u));
1043 req->flags |= FLAG_PTR2_FREE;
1044 req->ptr2 = names = malloc (memlen);
1045 UNLOCK (wrklock);
1046
1047 if (dirp && u && names)
1048 for (;;)
1049 {
1050 errno = 0;
1051 readdir_r (dirp, &u->d, &entp);
1052
1053 if (!entp)
1054 break;
1055
1056 name = entp->d_name;
1057
1058 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1059 {
1060 int len = strlen (name) + 1;
1061
1062 res++;
1063
1064 while (memofs + len > memlen)
1065 {
1066 memlen *= 2;
1067 LOCK (wrklock);
1068 req->ptr2 = names = realloc (names, memlen);
1069 UNLOCK (wrklock);
1070
1071 if (!names)
1072 break;
1073 }
1074
1075 memcpy (names + memofs, name, len);
1076 memofs += len;
1077 }
1078 }
1079
1080 if (errno)
1081 res = -1;
1082
1083 req->result = res;
1084} 999}
1085 1000
1086/*****************************************************************************/ 1001/*****************************************************************************/
1087 1002
1088static void *aio_proc (void *thr_arg) 1003XS(boot_IO__AIO) ecb_cold;
1089{
1090 aio_req req;
1091 struct timespec ts;
1092 worker *self = (worker *)thr_arg;
1093 1004
1094 /* try to distribute timeouts somewhat evenly */
1095 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1096 * (1000000000UL / 1024UL);
1097
1098 for (;;)
1099 {
1100 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1101
1102 LOCK (reqlock);
1103
1104 for (;;)
1105 {
1106 self->req = req = reqq_shift (&req_queue);
1107
1108 if (req)
1109 break;
1110
1111 ++idle;
1112
1113 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1114 == ETIMEDOUT)
1115 {
1116 if (idle > max_idle)
1117 {
1118 --idle;
1119 UNLOCK (reqlock);
1120 LOCK (wrklock);
1121 --started;
1122 UNLOCK (wrklock);
1123 goto quit;
1124 }
1125
1126 /* we are allowed to idle, so do so without any timeout */
1127 COND_WAIT (reqwait, reqlock);
1128 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1129 }
1130
1131 --idle;
1132 }
1133
1134 --nready;
1135
1136 UNLOCK (reqlock);
1137
1138 errno = 0; /* strictly unnecessary */
1139
1140 if (!(req->flags & FLAG_CANCELLED))
1141 switch (req->type)
1142 {
1143 case REQ_READ: req->result = req->offs >= 0
1144 ? pread (req->int1, req->ptr1, req->size, req->offs)
1145 : read (req->int1, req->ptr1, req->size); break;
1146 case REQ_WRITE: req->result = req->offs >= 0
1147 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1148 : write (req->int1, req->ptr1, req->size); break;
1149
1150 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1151 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1152
1153 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1154 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1155 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1156
1157 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1158 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1159 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1160 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1161
1162 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1163 case REQ_CLOSE: req->result = close (req->int1); break;
1164 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1165 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1166 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1167 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1168 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1169 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1170 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1171 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1172
1173 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1174 case REQ_FSYNC: req->result = fsync (req->int1); break;
1175 case REQ_READDIR: scandir_ (req, self); break;
1176
1177 case REQ_BUSY:
1178 {
1179 struct timeval tv;
1180
1181 tv.tv_sec = req->nv1;
1182 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.;
1183
1184 req->result = select (0, 0, 0, 0, &tv);
1185 }
1186
1187 case REQ_UTIME:
1188 case REQ_FUTIME:
1189 {
1190 struct timeval tv[2];
1191 struct timeval *times;
1192
1193 if (req->nv1 != -1. || req->nv2 != -1.)
1194 {
1195 tv[0].tv_sec = req->nv1;
1196 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1197 tv[1].tv_sec = req->nv2;
1198 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1199
1200 times = tv;
1201 }
1202 else
1203 times = 0;
1204
1205
1206 req->result = req->type == REQ_FUTIME
1207 ? futimes (req->int1, times)
1208 : utimes (req->ptr1, times);
1209 }
1210
1211 case REQ_GROUP:
1212 case REQ_NOP:
1213 break;
1214
1215 case REQ_QUIT:
1216 goto quit;
1217
1218 default:
1219 req->result = -1;
1220 break;
1221 }
1222
1223 req->errorno = errno;
1224
1225 LOCK (reslock);
1226
1227 ++npending;
1228
1229 if (!reqq_push (&res_queue, req))
1230 {
1231 /* write a dummy byte to the pipe so fh becomes ready */
1232 write (respipe [1], &respipe, 1);
1233
1234 /* optionally signal the main thread asynchronously */
1235 if (main_sig)
1236 pthread_kill (main_tid, main_sig);
1237 }
1238
1239 self->req = 0;
1240 worker_clear (self);
1241
1242 UNLOCK (reslock);
1243 }
1244
1245quit:
1246 LOCK (wrklock);
1247 worker_free (self);
1248 UNLOCK (wrklock);
1249
1250 return 0;
1251}
1252
1253/*****************************************************************************/
1254
1255static void atfork_prepare (void)
1256{
1257 LOCK (wrklock);
1258 LOCK (reqlock);
1259 LOCK (reslock);
1260#if !HAVE_PREADWRITE
1261 LOCK (preadwritelock);
1262#endif
1263#if !HAVE_READDIR_R
1264 LOCK (readdirlock);
1265#endif
1266}
1267
1268static void atfork_parent (void)
1269{
1270#if !HAVE_READDIR_R
1271 UNLOCK (readdirlock);
1272#endif
1273#if !HAVE_PREADWRITE
1274 UNLOCK (preadwritelock);
1275#endif
1276 UNLOCK (reslock);
1277 UNLOCK (reqlock);
1278 UNLOCK (wrklock);
1279}
1280
1281static void atfork_child (void)
1282{
1283 aio_req prv;
1284
1285 while (prv = reqq_shift (&req_queue))
1286 req_destroy (prv);
1287
1288 while (prv = reqq_shift (&res_queue))
1289 req_destroy (prv);
1290
1291 while (wrk_first.next != &wrk_first)
1292 {
1293 worker *wrk = wrk_first.next;
1294
1295 if (wrk->req)
1296 req_destroy (wrk->req);
1297
1298 worker_clear (wrk);
1299 worker_free (wrk);
1300 }
1301
1302 started = 0;
1303 idle = 0;
1304 nreqs = 0;
1305 nready = 0;
1306 npending = 0;
1307
1308 close (respipe [0]);
1309 close (respipe [1]);
1310 create_pipe ();
1311
1312 atfork_parent ();
1313}
1314
1315#define dREQ \
1316 aio_req req; \
1317 int req_pri = next_pri; \
1318 next_pri = DEFAULT_PRI + PRI_BIAS; \
1319 \
1320 if (SvOK (callback) && !SvROK (callback)) \
1321 croak ("callback must be undef or of reference type"); \
1322 \
1323 Newz (0, req, 1, aio_cb); \
1324 if (!req) \
1325 croak ("out of memory during aio_req allocation"); \
1326 \
1327 req->callback = newSVsv (callback); \
1328 req->pri = req_pri
1329
1330#define REQ_SEND \
1331 req_send (req); \
1332 \
1333 if (GIMME_V != G_VOID) \
1334 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1335
1336MODULE = IO::AIO PACKAGE = IO::AIO 1005MODULE = IO::AIO PACKAGE = IO::AIO
1337 1006
1338PROTOTYPES: ENABLE 1007PROTOTYPES: ENABLE
1339 1008
1340BOOT: 1009BOOT:
1341{ 1010{
1011 static const struct {
1012 const char *name;
1013 IV iv;
1014 } *civ, const_iv[] = {
1015# define const_niv(name, value) { # name, (IV) value },
1016# define const_iv(name) { # name, (IV) name },
1017# define const_eio(name) { # name, (IV) EIO_ ## name },
1018
1019 /* you have to re-run ./gendef0 after adding/removing any constants here */
1020 /* the first block can be undef if missing */
1021 const_iv (ENOSYS)
1022 const_iv (EXDEV)
1023 const_iv (EBADR)
1024
1025 /* for lseek */
1026 const_iv (SEEK_DATA)
1027 const_iv (SEEK_HOLE)
1028
1029 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1030 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1031 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1032 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1033 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1034 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1035
1036 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1037 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1038 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1039 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1040 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1041
1042 /* the second block will be 0 when missing */
1043 const_iv (O_RDONLY)
1044 const_iv (O_WRONLY)
1045 const_iv (O_RDWR)
1046 const_iv (O_CREAT)
1047 const_iv (O_TRUNC)
1048 const_iv (O_EXCL)
1049 const_iv (O_APPEND)
1050
1051 const_iv (O_ASYNC)
1052 const_iv (O_DIRECT)
1053 const_iv (O_NOATIME)
1054
1055 const_iv (O_CLOEXEC)
1056 const_iv (O_NOCTTY)
1057 const_iv (O_NOFOLLOW)
1058 const_iv (O_NONBLOCK)
1059 const_iv (O_EXEC)
1060 const_iv (O_SEARCH)
1061 const_iv (O_DIRECTORY)
1062 const_iv (O_DSYNC)
1063 const_iv (O_RSYNC)
1064 const_iv (O_SYNC)
1065 const_iv (O_PATH)
1066 const_iv (O_TMPFILE)
1067 const_iv (O_TTY_INIT)
1068
1069 const_iv (S_IFIFO)
1070 const_iv (S_IFCHR)
1071 const_iv (S_IFBLK)
1072 const_iv (S_IFLNK)
1073 const_iv (S_IFREG)
1074 const_iv (S_IFDIR)
1075 const_iv (S_IFWHT)
1076 const_iv (S_IFSOCK)
1077 const_iv (S_IFMT)
1078
1079 const_iv (ST_RDONLY)
1080 const_iv (ST_NOSUID)
1081 const_iv (ST_NODEV)
1082 const_iv (ST_NOEXEC)
1083 const_iv (ST_SYNCHRONOUS)
1084 const_iv (ST_MANDLOCK)
1085 const_iv (ST_WRITE)
1086 const_iv (ST_APPEND)
1087 const_iv (ST_IMMUTABLE)
1088 const_iv (ST_NOATIME)
1089 const_iv (ST_NODIRATIME)
1090 const_iv (ST_RELATIME)
1091
1092 const_iv (PROT_NONE)
1093 const_iv (PROT_EXEC)
1094 const_iv (PROT_READ)
1095 const_iv (PROT_WRITE)
1096
1097 const_iv (MAP_PRIVATE)
1098 const_iv (MAP_SHARED)
1099 const_iv (MAP_FIXED)
1100 const_iv (MAP_ANONYMOUS)
1101
1102 /* linuxish */
1103 const_iv (MAP_LOCKED)
1104 const_iv (MAP_NORESERVE)
1105 const_iv (MAP_POPULATE)
1106 const_iv (MAP_NONBLOCK)
1107 const_iv (MAP_GROWSDOWN)
1108 const_iv (MAP_32BIT)
1109 const_iv (MAP_HUGETLB)
1110 const_iv (MAP_STACK)
1111
1112 const_iv (MREMAP_MAYMOVE)
1113 const_iv (MREMAP_FIXED)
1114
1115 const_iv (F_DUPFD_CLOEXEC)
1116
1117 const_iv (F_OFD_GETLK)
1118 const_iv (F_OFD_SETLK)
1119 const_iv (F_OFD_GETLKW)
1120
1121 const_iv (FIFREEZE)
1122 const_iv (FITHAW)
1123 const_iv (FITRIM)
1124 const_iv (FICLONE)
1125 const_iv (FICLONERANGE)
1126 const_iv (FIDEDUPERANGE)
1127
1128 const_iv (FS_IOC_GETFLAGS)
1129 const_iv (FS_IOC_SETFLAGS)
1130 const_iv (FS_IOC_GETVERSION)
1131 const_iv (FS_IOC_SETVERSION)
1132 const_iv (FS_IOC_FIEMAP)
1133 const_iv (FS_IOC_FSGETXATTR)
1134 const_iv (FS_IOC_FSSETXATTR)
1135 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1136 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1137 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1138
1139 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1140
1141 const_iv (FS_SECRM_FL)
1142 const_iv (FS_UNRM_FL)
1143 const_iv (FS_COMPR_FL)
1144 const_iv (FS_SYNC_FL)
1145 const_iv (FS_IMMUTABLE_FL)
1146 const_iv (FS_APPEND_FL)
1147 const_iv (FS_NODUMP_FL)
1148 const_iv (FS_NOATIME_FL)
1149 const_iv (FS_DIRTY_FL)
1150 const_iv (FS_COMPRBLK_FL)
1151 const_iv (FS_NOCOMP_FL)
1152 const_iv (FS_ENCRYPT_FL)
1153 const_iv (FS_BTREE_FL)
1154 const_iv (FS_INDEX_FL)
1155 const_iv (FS_JOURNAL_DATA_FL)
1156 const_iv (FS_NOTAIL_FL)
1157 const_iv (FS_DIRSYNC_FL)
1158 const_iv (FS_TOPDIR_FL)
1159 const_iv (FS_FL_USER_MODIFIABLE)
1160
1161 const_iv (FS_XFLAG_REALTIME)
1162 const_iv (FS_XFLAG_PREALLOC)
1163 const_iv (FS_XFLAG_IMMUTABLE)
1164 const_iv (FS_XFLAG_APPEND)
1165 const_iv (FS_XFLAG_SYNC)
1166 const_iv (FS_XFLAG_NOATIME)
1167 const_iv (FS_XFLAG_NODUMP)
1168 const_iv (FS_XFLAG_RTINHERIT)
1169 const_iv (FS_XFLAG_PROJINHERIT)
1170 const_iv (FS_XFLAG_NOSYMLINKS)
1171 const_iv (FS_XFLAG_EXTSIZE)
1172 const_iv (FS_XFLAG_EXTSZINHERIT)
1173 const_iv (FS_XFLAG_NODEFRAG)
1174 const_iv (FS_XFLAG_FILESTREAM)
1175 const_iv (FS_XFLAG_DAX)
1176 const_iv (FS_XFLAG_HASATTR)
1177
1178 const_iv (FIEMAP_FLAG_SYNC)
1179 const_iv (FIEMAP_FLAG_XATTR)
1180 const_iv (FIEMAP_FLAGS_COMPAT)
1181 const_iv (FIEMAP_EXTENT_LAST)
1182 const_iv (FIEMAP_EXTENT_UNKNOWN)
1183 const_iv (FIEMAP_EXTENT_DELALLOC)
1184 const_iv (FIEMAP_EXTENT_ENCODED)
1185 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1186 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1187 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1188 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1189 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1190 const_iv (FIEMAP_EXTENT_MERGED)
1191 const_iv (FIEMAP_EXTENT_SHARED)
1192
1193 const_iv (SPLICE_F_MOVE)
1194 const_iv (SPLICE_F_NONBLOCK)
1195 const_iv (SPLICE_F_MORE)
1196 const_iv (SPLICE_F_GIFT)
1197
1198 const_iv (EFD_CLOEXEC)
1199 const_iv (EFD_NONBLOCK)
1200 const_iv (EFD_SEMAPHORE)
1201
1202 const_iv (CLOCK_REALTIME)
1203 const_iv (CLOCK_MONOTONIC)
1204 const_iv (CLOCK_BOOTTIME)
1205 const_iv (CLOCK_REALTIME_ALARM)
1206 const_iv (CLOCK_BOOTTIME_ALARM)
1207
1208 const_iv (TFD_NONBLOCK)
1209 const_iv (TFD_CLOEXEC)
1210
1211 const_iv (TFD_TIMER_ABSTIME)
1212 const_iv (TFD_TIMER_CANCEL_ON_SET)
1213
1214 /* these are libeio constants, and are independent of gendef0 */
1215 const_eio (SEEK_SET)
1216 const_eio (SEEK_CUR)
1217 const_eio (SEEK_END)
1218
1219 const_eio (MCL_FUTURE)
1220 const_eio (MCL_CURRENT)
1221
1222 const_eio (MS_ASYNC)
1223 const_eio (MS_INVALIDATE)
1224 const_eio (MS_SYNC)
1225
1226 const_eio (MT_MODIFY)
1227
1228 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1229 const_eio (SYNC_FILE_RANGE_WRITE)
1230 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1231
1232 const_eio (FALLOC_FL_KEEP_SIZE)
1233 const_eio (FALLOC_FL_PUNCH_HOLE)
1234 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1235 const_eio (FALLOC_FL_ZERO_RANGE)
1236 const_eio (FALLOC_FL_INSERT_RANGE)
1237 const_eio (FALLOC_FL_UNSHARE_RANGE)
1238
1239 const_eio (RENAME_NOREPLACE)
1240 const_eio (RENAME_EXCHANGE)
1241 const_eio (RENAME_WHITEOUT)
1242
1243 const_eio (READDIR_DENTS)
1244 const_eio (READDIR_DIRS_FIRST)
1245 const_eio (READDIR_STAT_ORDER)
1246 const_eio (READDIR_FOUND_UNKNOWN)
1247
1248 const_eio (DT_UNKNOWN)
1249 const_eio (DT_FIFO)
1250 const_eio (DT_CHR)
1251 const_eio (DT_DIR)
1252 const_eio (DT_BLK)
1253 const_eio (DT_REG)
1254 const_eio (DT_LNK)
1255 const_eio (DT_SOCK)
1256 const_eio (DT_WHT)
1257 };
1258
1342 HV *stash = gv_stashpv ("IO::AIO", 1); 1259 aio_stash = gv_stashpv ("IO::AIO" , 1);
1260 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1261 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1262 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1343 1263
1344 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1264 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1345 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1265 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1346 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1347 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1348 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1349 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1350 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1351 1266
1352 create_pipe (); 1267 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1353 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1354}
1355 1268
1269 reinit ();
1270}
1271
1356void 1272void
1273reinit ()
1274 PROTOTYPE:
1275
1276void
1357max_poll_reqs (int nreqs) 1277max_poll_reqs (unsigned int nreqs)
1358 PROTOTYPE: $ 1278 PROTOTYPE: $
1359 CODE: 1279 CODE:
1360 max_poll_reqs = nreqs; 1280 eio_set_max_poll_reqs (nreqs);
1361 1281
1362void 1282void
1363max_poll_time (double nseconds) 1283max_poll_time (double nseconds)
1364 PROTOTYPE: $ 1284 PROTOTYPE: $
1365 CODE: 1285 CODE:
1366 max_poll_time = nseconds * AIO_TICKS; 1286 eio_set_max_poll_time (nseconds);
1367 1287
1368void 1288void
1369min_parallel (int nthreads) 1289min_parallel (unsigned int nthreads)
1370 PROTOTYPE: $
1371
1372void
1373max_parallel (int nthreads)
1374 PROTOTYPE: $
1375
1376void
1377max_idle (int nthreads)
1378 PROTOTYPE: $ 1290 PROTOTYPE: $
1379 CODE: 1291 CODE:
1380 set_max_idle (nthreads); 1292 eio_set_min_parallel (nthreads);
1381 1293
1382int 1294void
1383max_outstanding (int maxreqs) 1295max_parallel (unsigned int nthreads)
1384 PROTOTYPE: $ 1296 PROTOTYPE: $
1385 CODE: 1297 CODE:
1386 RETVAL = max_outstanding; 1298 eio_set_max_parallel (nthreads);
1299
1300void
1301max_idle (unsigned int nthreads)
1302 PROTOTYPE: $
1303 CODE:
1304 eio_set_max_idle (nthreads);
1305
1306void
1307idle_timeout (unsigned int seconds)
1308 PROTOTYPE: $
1309 CODE:
1310 eio_set_idle_timeout (seconds);
1311
1312void
1313max_outstanding (unsigned int maxreqs)
1314 PROTOTYPE: $
1315 CODE:
1387 max_outstanding = maxreqs; 1316 max_outstanding = maxreqs;
1388 OUTPUT:
1389 RETVAL
1390 1317
1391void 1318void
1392aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 1319aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1393 PROTOTYPE: $$$;$
1394 PPCODE: 1320 PPCODE:
1395{ 1321{
1396 dREQ; 1322 dREQ;
1397 1323
1324 req->type = EIO_WD_OPEN;
1325 req_set_path1 (req, pathname);
1326
1327 REQ_SEND;
1328}
1329
1330void
1331aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1332 PPCODE:
1333{
1334 dREQ;
1335
1398 req->type = REQ_OPEN; 1336 req->type = EIO_OPEN;
1399 req->sv1 = newSVsv (pathname); 1337 req_set_path1 (req, pathname);
1400 req->ptr1 = SvPVbyte_nolen (req->sv1);
1401 req->int1 = flags; 1338 req->int1 = flags;
1402 req->mode = mode; 1339 req->int2 = mode;
1403 1340
1404 REQ_SEND; 1341 REQ_SEND;
1405} 1342}
1406 1343
1407void 1344void
1408aio_close (SV *fh, SV *callback=&PL_sv_undef) 1345aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1409 PROTOTYPE: $;$
1410 ALIAS: 1346 ALIAS:
1411 aio_close = REQ_CLOSE
1412 aio_fsync = REQ_FSYNC 1347 aio_fsync = EIO_FSYNC
1413 aio_fdatasync = REQ_FDATASYNC 1348 aio_fdatasync = EIO_FDATASYNC
1349 aio_syncfs = EIO_SYNCFS
1414 PPCODE: 1350 PPCODE:
1415{ 1351{
1352 int fd = s_fileno_croak (fh, 0);
1416 dREQ; 1353 dREQ;
1417 1354
1418 req->type = ix; 1355 req->type = ix;
1419 req->sv1 = newSVsv (fh); 1356 req->sv1 = newSVsv (fh);
1420 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1357 req->int1 = fd;
1421 1358
1422 REQ_SEND (req); 1359 REQ_SEND;
1423} 1360}
1424 1361
1425void 1362void
1363aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1364 PPCODE:
1365{
1366 int fd = s_fileno_croak (fh, 0);
1367 dREQ;
1368
1369 req->type = EIO_SYNC_FILE_RANGE;
1370 req->sv1 = newSVsv (fh);
1371 req->int1 = fd;
1372 req->offs = offset;
1373 req->size = nbytes;
1374 req->int2 = flags;
1375
1376 REQ_SEND;
1377}
1378
1379void
1380aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1381 PPCODE:
1382{
1383 int fd = s_fileno_croak (fh, 0);
1384 dREQ;
1385
1386 req->type = EIO_FALLOCATE;
1387 req->sv1 = newSVsv (fh);
1388 req->int1 = fd;
1389 req->int2 = mode;
1390 req->offs = offset;
1391 req->size = len;
1392
1393 REQ_SEND;
1394}
1395
1396void
1397aio_close (SV *fh, SV *callback = &PL_sv_undef)
1398 PPCODE:
1399{
1400 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1401 int fd = s_fileno_croak (fh, 0);
1402 dREQ;
1403
1404 if (expect_false (close_fd < 0))
1405 {
1406 int pipefd [2];
1407
1408 if (
1409#ifdef _WIN32
1410 _pipe (pipefd, 1, _O_BINARY) < 0
1411#else
1412 pipe (pipefd) < 0
1413 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1414#endif
1415 || close (pipefd [1]) < 0
1416 )
1417 abort (); /*D*/
1418
1419 close_fd = pipefd [0];
1420 }
1421
1422 req->type = EIO_DUP2;
1423 req->int1 = close_fd;
1424 req->sv2 = newSVsv (fh);
1425 req->int2 = fd;
1426
1427 REQ_SEND;
1428}
1429
1430void
1431aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1432 PPCODE:
1433{
1434 int fd = s_fileno_croak (fh, 0);
1435 dREQ;
1436
1437 req->type = EIO_SEEK;
1438 req->sv1 = newSVsv (fh);
1439 req->int1 = fd;
1440 req->offs = SvVAL64 (offset);
1441 req->int2 = whence;
1442
1443 REQ_SEND;
1444}
1445
1446void
1426aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1447aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1427 ALIAS: 1448 ALIAS:
1428 aio_read = REQ_READ 1449 aio_read = EIO_READ
1429 aio_write = REQ_WRITE 1450 aio_write = EIO_WRITE
1430 PROTOTYPE: $$$$$;$
1431 PPCODE: 1451 PPCODE:
1432{ 1452{
1433 STRLEN svlen; 1453 STRLEN svlen;
1454 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1434 char *svptr = SvPVbyte (data, svlen); 1455 char *svptr = SvPVbyte (data, svlen);
1435 UV len = SvUV (length); 1456 UV len = SvUV (length);
1436 1457
1437 SvUPGRADE (data, SVt_PV);
1438 SvPOK_on (data);
1439
1440 if (dataoffset < 0) 1458 if (dataoffset < 0)
1441 dataoffset += svlen; 1459 dataoffset += svlen;
1442 1460
1443 if (dataoffset < 0 || dataoffset > svlen) 1461 if (dataoffset < 0 || dataoffset > svlen)
1444 croak ("dataoffset outside of data scalar"); 1462 croak ("dataoffset outside of data scalar");
1445 1463
1446 if (ix == REQ_WRITE) 1464 if (ix == EIO_WRITE)
1447 { 1465 {
1448 /* write: check length and adjust. */ 1466 /* write: check length and adjust. */
1449 if (!SvOK (length) || len + dataoffset > svlen) 1467 if (!SvOK (length) || len + dataoffset > svlen)
1450 len = svlen - dataoffset; 1468 len = svlen - dataoffset;
1451 } 1469 }
1452 else 1470 else
1453 { 1471 {
1454 /* read: grow scalar as necessary */ 1472 /* read: check type and grow scalar as necessary */
1473 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1455 svptr = SvGROW (data, len + dataoffset + 1); 1474 svptr = sv_grow (data, len + dataoffset + 1);
1475 else if (SvCUR (data) < len + dataoffset)
1476 croak ("length + dataoffset outside of scalar, and cannot grow");
1456 } 1477 }
1457
1458 if (len < 0)
1459 croak ("length must not be negative");
1460 1478
1461 { 1479 {
1462 dREQ; 1480 dREQ;
1463 1481
1464 req->type = ix; 1482 req->type = ix;
1465 req->sv1 = newSVsv (fh); 1483 req->sv1 = newSVsv (fh);
1466 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1484 req->int1 = fd;
1467 : IoOFP (sv_2io (fh)));
1468 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 1485 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1469 req->size = len; 1486 req->size = len;
1470 req->sv2 = SvREFCNT_inc (data); 1487 req->sv2 = SvREFCNT_inc (data);
1471 req->ptr1 = (char *)svptr + dataoffset; 1488 req->ptr2 = (char *)svptr + dataoffset;
1472 req->stroffset = dataoffset; 1489 req->stroffset = dataoffset;
1473 1490
1474 if (!SvREADONLY (data)) 1491 if (!SvREADONLY (data))
1475 { 1492 {
1476 SvREADONLY_on (data); 1493 SvREADONLY_on (data);
… …
1480 REQ_SEND; 1497 REQ_SEND;
1481 } 1498 }
1482} 1499}
1483 1500
1484void 1501void
1485aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1502aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1486 PROTOTYPE: $$;$ 1503 ALIAS:
1504 aio_ioctl = EIO_IOCTL
1505 aio_fcntl = EIO_FCNTL
1487 PPCODE: 1506 PPCODE:
1488{ 1507{
1489 SV *data; 1508 int fd = s_fileno_croak (fh, 0);
1490 dREQ; 1509 char *svptr;
1491 1510
1492 data = newSV (NAME_MAX); 1511 if (SvPOK (arg) || !SvNIOK (arg))
1493 SvPOK_on (data);
1494
1495 req->type = REQ_READLINK;
1496 req->sv1 = newSVsv (path);
1497 req->ptr2 = SvPVbyte_nolen (req->sv1);
1498 req->sv2 = data;
1499 req->ptr1 = SvPVbyte_nolen (data);
1500
1501 REQ_SEND;
1502}
1503
1504void
1505aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1506 PROTOTYPE: $$$$;$
1507 PPCODE:
1508{
1509 dREQ;
1510
1511 req->type = REQ_SENDFILE;
1512 req->sv1 = newSVsv (out_fh);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1514 req->sv2 = newSVsv (in_fh);
1515 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1516 req->offs = SvVAL64 (in_offset);
1517 req->size = length;
1518
1519 REQ_SEND;
1520}
1521
1522void
1523aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1524 PROTOTYPE: $$$;$
1525 PPCODE:
1526{
1527 dREQ;
1528
1529 req->type = REQ_READAHEAD;
1530 req->sv1 = newSVsv (fh);
1531 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1532 req->offs = SvVAL64 (offset);
1533 req->size = length;
1534
1535 REQ_SEND;
1536}
1537
1538void
1539aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1540 ALIAS:
1541 aio_stat = REQ_STAT
1542 aio_lstat = REQ_LSTAT
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req->ptr2 = malloc (sizeof (Stat_t));
1548 if (!req->ptr2)
1549 { 1512 {
1550 req_destroy (req); 1513 STRLEN svlen;
1551 croak ("out of memory during aio_stat statdata allocation"); 1514 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1552 } 1515#ifdef IOCPARM_LEN
1516 STRLEN need = IOCPARM_LEN (request);
1517#else
1518 STRLEN need = 256;
1519#endif
1553 1520
1554 req->flags |= FLAG_PTR2_FREE; 1521 if (svlen < need)
1555 req->sv1 = newSVsv (fh_or_path); 1522 svptr = SvGROW (arg, need);
1556
1557 if (SvPOK (fh_or_path))
1558 {
1559 req->type = ix;
1560 req->ptr1 = SvPVbyte_nolen (req->sv1);
1561 } 1523 }
1562 else 1524 else
1525 svptr = (char *)SvIV (arg);
1526
1563 { 1527 {
1528 dREQ;
1529
1564 req->type = REQ_FSTAT; 1530 req->type = ix;
1565 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1531 req->sv1 = newSVsv (fh);
1532 req->int1 = fd;
1533 req->int2 = (long)request;
1534 req->sv2 = SvREFCNT_inc (arg);
1535 req->ptr2 = svptr;
1536
1537 REQ_SEND;
1566 } 1538 }
1539}
1540
1541void
1542aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1543 ALIAS:
1544 aio_readlink = EIO_READLINK
1545 aio_realpath = EIO_REALPATH
1546 PPCODE:
1547{
1548 dREQ;
1549
1550 req->type = ix;
1551 req_set_path1 (req, pathname);
1567 1552
1568 REQ_SEND; 1553 REQ_SEND;
1569} 1554}
1570 1555
1571void 1556void
1557aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1558 PPCODE:
1559{
1560 int ifd = s_fileno_croak (in_fh , 0);
1561 int ofd = s_fileno_croak (out_fh, 1);
1562 dREQ;
1563
1564 req->type = EIO_SENDFILE;
1565 req->sv1 = newSVsv (out_fh);
1566 req->int1 = ofd;
1567 req->sv2 = newSVsv (in_fh);
1568 req->int2 = ifd;
1569 req->offs = in_offset;
1570 req->size = length;
1571
1572 REQ_SEND;
1573}
1574
1575void
1576aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1577 PPCODE:
1578{
1579 int fd = s_fileno_croak (fh, 0);
1580 dREQ;
1581
1582 req->type = EIO_READAHEAD;
1583 req->sv1 = newSVsv (fh);
1584 req->int1 = fd;
1585 req->offs = offset;
1586 req->size = length;
1587
1588 REQ_SEND;
1589}
1590
1591void
1592aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1593 ALIAS:
1594 aio_stat = EIO_STAT
1595 aio_lstat = EIO_LSTAT
1596 aio_statvfs = EIO_STATVFS
1597 PPCODE:
1598{
1599 dREQ;
1600
1601 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1602
1603 REQ_SEND;
1604}
1605
1606UV
1607major (UV dev)
1608 ALIAS:
1609 minor = 1
1610 CODE:
1611 RETVAL = ix ? minor (dev) : major (dev);
1612 OUTPUT:
1613 RETVAL
1614
1615UV
1616makedev (UV maj, UV min)
1617 CODE:
1618 RETVAL = makedev (maj, min);
1619 OUTPUT:
1620 RETVAL
1621
1622void
1572aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1623aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1573 PPCODE: 1624 PPCODE:
1574{ 1625{
1575 dREQ; 1626 dREQ;
1576 1627
1577 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1628 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1578 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1629 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1579 req->sv1 = newSVsv (fh_or_path); 1630 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1580
1581 if (SvPOK (fh_or_path))
1582 {
1583 req->type = REQ_UTIME;
1584 req->ptr1 = SvPVbyte_nolen (req->sv1);
1585 }
1586 else
1587 {
1588 req->type = REQ_FUTIME;
1589 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1590 }
1591 1631
1592 REQ_SEND; 1632 REQ_SEND;
1593} 1633}
1594 1634
1595void 1635void
1596aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1636aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1597 PPCODE: 1637 PPCODE:
1598{ 1638{
1599 dREQ; 1639 dREQ;
1600 1640
1601 req->mode = mode; 1641 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1602 req->sv1 = newSVsv (fh_or_path); 1642 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1603
1604 if (SvPOK (fh_or_path))
1605 {
1606 req->type = REQ_CHMOD;
1607 req->ptr1 = SvPVbyte_nolen (req->sv1);
1608 }
1609 else
1610 {
1611 req->type = REQ_FCHMOD;
1612 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1613 }
1614 1643
1615 REQ_SEND; 1644 REQ_SEND;
1616} 1645}
1617 1646
1618void 1647void
1648aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1649 PPCODE:
1650{
1651 dREQ;
1652
1653 req->int2 = mode;
1654 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1655
1656 REQ_SEND;
1657}
1658
1659void
1619aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1660aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1620 PPCODE: 1661 PPCODE:
1621{ 1662{
1622 dREQ; 1663 dREQ;
1623 1664
1624 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1665 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1625 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 1666 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1626 req->sv1 = newSVsv (fh_or_path); 1667 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1627
1628 if (SvPOK (fh_or_path))
1629 {
1630 req->type = REQ_CHOWN;
1631 req->ptr1 = SvPVbyte_nolen (req->sv1);
1632 }
1633 else
1634 {
1635 req->type = REQ_FCHOWN;
1636 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1637 }
1638 1668
1639 REQ_SEND; 1669 REQ_SEND;
1640} 1670}
1641 1671
1642void 1672void
1673aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1674 PPCODE:
1675{
1676 dREQ;
1677
1678 req->type = EIO_READDIR;
1679 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1680
1681 if (flags & EIO_READDIR_DENTS)
1682 req->int1 |= EIO_READDIR_CUSTOM2;
1683
1684 req_set_path1 (req, pathname);
1685
1686 REQ_SEND;
1687}
1688
1689void
1690aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1691 PPCODE:
1692{
1693 dREQ;
1694
1695 req->type = EIO_MKDIR;
1696 req->int2 = mode;
1697 req_set_path1 (req, pathname);
1698
1699 REQ_SEND;
1700}
1701
1702void
1643aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1703aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1644 ALIAS: 1704 ALIAS:
1645 aio_unlink = REQ_UNLINK 1705 aio_unlink = EIO_UNLINK
1646 aio_rmdir = REQ_RMDIR 1706 aio_rmdir = EIO_RMDIR
1647 aio_readdir = REQ_READDIR 1707 aio_readdir = EIO_READDIR
1648 PPCODE: 1708 PPCODE:
1649{ 1709{
1650 dREQ; 1710 dREQ;
1651 1711
1652 req->type = ix; 1712 req->type = ix;
1653 req->sv1 = newSVsv (pathname); 1713 req_set_path1 (req, pathname);
1654 req->ptr1 = SvPVbyte_nolen (req->sv1);
1655 1714
1656 REQ_SEND; 1715 REQ_SEND;
1657} 1716}
1658 1717
1659void 1718void
1660aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 1719aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1720 ALIAS:
1721 aio_link = EIO_LINK
1722 aio_symlink = EIO_SYMLINK
1723 aio_rename = EIO_RENAME
1661 PPCODE: 1724 PPCODE:
1662{ 1725{
1663 dREQ; 1726 eio_wd wd2 = 0;
1664
1665 req->type = REQ_MKDIR;
1666 req->sv1 = newSVsv (pathname);
1667 req->ptr1 = SvPVbyte_nolen (req->sv1);
1668 req->mode = mode;
1669
1670 REQ_SEND;
1671}
1672
1673void
1674aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1675 ALIAS:
1676 aio_link = REQ_LINK
1677 aio_symlink = REQ_SYMLINK
1678 aio_rename = REQ_RENAME
1679 PPCODE:
1680{
1681 dREQ; 1727 dREQ;
1682 1728
1683 req->type = ix; 1729 req->type = ix;
1684 req->sv2 = newSVsv (oldpath); 1730 req_set_path1 (req, oldpath);
1685 req->ptr2 = SvPVbyte_nolen (req->sv2); 1731 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1686 req->sv1 = newSVsv (newpath); 1732 req->int3 = (long)wd2;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 1733
1689 REQ_SEND; 1734 REQ_SEND;
1690} 1735}
1691 1736
1692void 1737void
1693aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1738aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1694 PPCODE: 1739 PPCODE:
1695{ 1740{
1741 eio_wd wd2 = 0;
1696 dREQ; 1742 dREQ;
1697 1743
1698 req->type = REQ_MKNOD; 1744 req->type = EIO_RENAME;
1699 req->sv1 = newSVsv (pathname); 1745 req_set_path1 (req, oldpath);
1700 req->ptr1 = SvPVbyte_nolen (req->sv1); 1746 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1701 req->mode = (mode_t)mode; 1747 req->int2 = flags;
1702 req->offs = dev; 1748 req->int3 = (long)wd2;
1703 1749
1704 REQ_SEND; 1750 REQ_SEND;
1705} 1751}
1706 1752
1707void 1753void
1708aio_busy (double delay, SV *callback=&PL_sv_undef) 1754aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1709 PPCODE: 1755 PPCODE:
1710{ 1756{
1711 dREQ; 1757 dREQ;
1758
1759 req->type = EIO_MKNOD;
1760 req->int2 = (mode_t)mode;
1761 req->offs = dev;
1762 req_set_path1 (req, pathname);
1763
1764 REQ_SEND;
1765}
1712 1766
1767void
1768aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1769 ALIAS:
1770 aio_mtouch = EIO_MTOUCH
1771 aio_msync = EIO_MSYNC
1772 PPCODE:
1773{
1774 STRLEN svlen;
1775 char *svptr = SvPVbyte (data, svlen);
1776 UV len = SvUV (length);
1777
1778 if (flags < 0)
1779 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1780
1781 if (offset < 0)
1782 offset += svlen;
1783
1784 if (offset < 0 || offset > svlen)
1785 croak ("offset outside of scalar");
1786
1787 if (!SvOK (length) || len + offset > svlen)
1788 len = svlen - offset;
1789
1790 {
1791 dREQ;
1792
1793 req->type = ix;
1794 req->sv2 = SvREFCNT_inc (data);
1795 req->ptr2 = (char *)svptr + offset;
1796 req->size = len;
1797 req->int1 = flags;
1798
1799 REQ_SEND;
1800 }
1801}
1802
1803void
1804aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1805 PPCODE:
1806{
1807 STRLEN svlen;
1808 char *svptr = SvPVbyte (data, svlen);
1809 UV len = SvUV (length);
1810
1811 if (offset < 0)
1812 offset += svlen;
1813
1814 if (offset < 0 || offset > svlen)
1815 croak ("offset outside of scalar");
1816
1817 if (!SvOK (length) || len + offset > svlen)
1818 len = svlen - offset;
1819
1820 {
1821 dREQ;
1822
1823 req->type = EIO_MLOCK;
1824 req->sv2 = SvREFCNT_inc (data);
1825 req->ptr2 = (char *)svptr + offset;
1826 req->size = len;
1827
1828 REQ_SEND;
1829 }
1830}
1831
1832void
1833aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1834 PPCODE:
1835{
1836 dREQ;
1837
1838 req->type = EIO_MLOCKALL;
1839 req->int1 = flags;
1840
1841 REQ_SEND;
1842}
1843
1844void
1845aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1846 PPCODE:
1847{
1848 int fd = s_fileno_croak (fh, 0);
1849 dREQ;
1850
1851 req->type = EIO_CUSTOM;
1852 req->sv1 = newSVsv (fh);
1853 req->int1 = fd;
1854
1855 req->feed = fiemap;
1856#if HAVE_FIEMAP
1857 /* keep our fingers crossed that the next two types are 64 bit */
1858 req->offs = start;
1859 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1860 req->int2 = flags;
1861 req->int3 = SvOK (count) ? SvIV (count) : -1;
1862#endif
1863
1864 REQ_SEND;
1865}
1866
1867void
1868aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1869 PPCODE:
1870{
1871 char *svptr = 0;
1872
1873 sv_clear_foreign (data);
1874
1875 if (length) /* known length, directly read into scalar */
1876 {
1877 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1878 svptr = sv_grow (data, length + 1);
1879 else if (SvCUR (data) < length)
1880 croak ("length outside of scalar, and cannot grow");
1881 else
1882 svptr = SvPVbyte_nolen (data);
1883 }
1884
1885 {
1886 dREQ;
1887
1888 req->type = EIO_SLURP;
1889 req_set_path1 (req, pathname);
1890 req->offs = offset;
1891 req->size = length;
1892 req->sv2 = SvREFCNT_inc (data);
1893 req->ptr2 = svptr;
1894
1895 if (!SvREADONLY (data))
1896 {
1897 SvREADONLY_on (data);
1898 req->flags |= FLAG_SV2_RO_OFF;
1899 }
1900
1901 REQ_SEND;
1902 }
1903}
1904
1905void
1906aio_busy (double delay, SV *callback = &PL_sv_undef)
1907 PPCODE:
1908{
1909 dREQ;
1910
1713 req->type = REQ_BUSY; 1911 req->type = EIO_BUSY;
1714 req->nv1 = delay < 0. ? 0. : delay; 1912 req->nv1 = delay < 0. ? 0. : delay;
1715 1913
1716 REQ_SEND; 1914 REQ_SEND;
1717} 1915}
1718 1916
1719void 1917void
1720aio_group (SV *callback=&PL_sv_undef) 1918aio_group (SV *callback = &PL_sv_undef)
1721 PROTOTYPE: ;$
1722 PPCODE: 1919 PPCODE:
1723{ 1920{
1724 dREQ; 1921 dREQ;
1725 1922
1726 req->type = REQ_GROUP; 1923 req->type = EIO_GROUP;
1727 1924
1925 PUTBACK;
1728 req_send (req); 1926 req_submit (req);
1927 SPAGAIN;
1928
1729 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1929 XPUSHs (req_sv (req, aio_grp_stash));
1730} 1930}
1731 1931
1732void 1932void
1733aio_nop (SV *callback=&PL_sv_undef) 1933aio_nop (SV *callback = &PL_sv_undef)
1934 ALIAS:
1935 aio_nop = EIO_NOP
1936 aio_sync = EIO_SYNC
1734 PPCODE: 1937 PPCODE:
1735{ 1938{
1736 dREQ; 1939 dREQ;
1737 1940
1738 req->type = REQ_NOP; 1941 req->type = ix;
1739 1942
1740 REQ_SEND; 1943 REQ_SEND;
1741} 1944}
1742 1945
1743int 1946int
1744aioreq_pri (int pri = 0) 1947aioreq_pri (int pri = NO_INIT)
1745 PROTOTYPE: ;$
1746 CODE: 1948 CODE:
1747 RETVAL = next_pri - PRI_BIAS; 1949 RETVAL = next_pri;
1748 if (items > 0) 1950 if (items > 0)
1749 { 1951 {
1750 if (pri < PRI_MIN) pri = PRI_MIN; 1952 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1751 if (pri > PRI_MAX) pri = PRI_MAX; 1953 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1752 next_pri = pri + PRI_BIAS; 1954 next_pri = pri;
1753 } 1955 }
1754 OUTPUT: 1956 OUTPUT:
1755 RETVAL 1957 RETVAL
1756 1958
1757void 1959void
1758aioreq_nice (int nice = 0) 1960aioreq_nice (int nice = 0)
1759 CODE: 1961 CODE:
1760 nice = next_pri - nice; 1962 nice = next_pri - nice;
1761 if (nice < PRI_MIN) nice = PRI_MIN; 1963 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1762 if (nice > PRI_MAX) nice = PRI_MAX; 1964 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1763 next_pri = nice + PRI_BIAS; 1965 next_pri = nice;
1764 1966
1765void 1967void
1766flush () 1968flush ()
1767 PROTOTYPE:
1768 CODE: 1969 CODE:
1769 while (nreqs) 1970 while (eio_nreqs ())
1770 { 1971 {
1771 poll_wait (); 1972 poll_wait ();
1772 poll_cb (); 1973 poll_cb ();
1773 } 1974 }
1774 1975
1775int 1976int
1776poll() 1977poll ()
1777 PROTOTYPE:
1778 CODE: 1978 CODE:
1779 poll_wait (); 1979 poll_wait ();
1780 RETVAL = poll_cb (); 1980 RETVAL = poll_cb ();
1781 OUTPUT: 1981 OUTPUT:
1782 RETVAL 1982 RETVAL
1783 1983
1784int 1984int
1785poll_fileno() 1985poll_fileno ()
1786 PROTOTYPE:
1787 CODE: 1986 CODE:
1788 RETVAL = respipe [0]; 1987 RETVAL = s_epipe_fd (&respipe);
1789 OUTPUT: 1988 OUTPUT:
1790 RETVAL 1989 RETVAL
1791 1990
1792int 1991int
1793poll_cb(...) 1992poll_cb (...)
1794 PROTOTYPE: 1993 PROTOTYPE:
1795 CODE: 1994 CODE:
1796 RETVAL = poll_cb (); 1995 RETVAL = poll_cb ();
1797 OUTPUT: 1996 OUTPUT:
1798 RETVAL 1997 RETVAL
1799 1998
1800void 1999void
1801poll_wait() 2000poll_wait ()
1802 PROTOTYPE:
1803 CODE: 2001 CODE:
1804 poll_wait (); 2002 poll_wait ();
1805 2003
1806void
1807setsig (int signum = SIGIO)
1808 PROTOTYPE: ;$
1809 CODE:
1810{
1811 if (block_sig_level)
1812 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1813
1814 LOCK (reslock);
1815 main_tid = pthread_self ();
1816 main_sig = signum;
1817 UNLOCK (reslock);
1818
1819 if (main_sig && npending)
1820 pthread_kill (main_tid, main_sig);
1821}
1822
1823void
1824aio_block (SV *cb)
1825 PROTOTYPE: &
1826 PPCODE:
1827{
1828 int count;
1829
1830 block_sig ();
1831 PUSHMARK (SP);
1832 PUTBACK;
1833 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1834 SPAGAIN;
1835 unblock_sig ();
1836
1837 if (SvTRUE (ERRSV))
1838 croak (0);
1839
1840 XSRETURN (count);
1841}
1842
1843int 2004int
1844nreqs() 2005nreqs ()
1845 PROTOTYPE:
1846 CODE: 2006 CODE:
1847 RETVAL = nreqs; 2007 RETVAL = eio_nreqs ();
1848 OUTPUT: 2008 OUTPUT:
1849 RETVAL 2009 RETVAL
1850 2010
1851int 2011int
1852nready() 2012nready ()
1853 PROTOTYPE:
1854 CODE: 2013 CODE:
1855 RETVAL = get_nready (); 2014 RETVAL = eio_nready ();
1856 OUTPUT: 2015 OUTPUT:
1857 RETVAL 2016 RETVAL
1858 2017
1859int 2018int
1860npending() 2019npending ()
1861 PROTOTYPE:
1862 CODE: 2020 CODE:
1863 RETVAL = get_npending (); 2021 RETVAL = eio_npending ();
1864 OUTPUT: 2022 OUTPUT:
1865 RETVAL 2023 RETVAL
1866 2024
1867int 2025int
1868nthreads() 2026nthreads ()
1869 PROTOTYPE:
1870 CODE: 2027 CODE:
1871 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2028 RETVAL = eio_nthreads ();
1872 RETVAL = started;
1873 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1874 OUTPUT: 2029 OUTPUT:
1875 RETVAL 2030 RETVAL
1876 2031
2032int
2033fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2034 CODE:
2035 RETVAL = posix_fadvise (fh, offset, length, advice);
2036 OUTPUT:
2037 RETVAL
2038
2039IV
2040sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2041 CODE:
2042 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2043 OUTPUT:
2044 RETVAL
2045
2046void
2047mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2048 PPCODE:
2049 sv_clear_foreign (scalar);
2050{
2051 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2052 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2053 if (addr == (void *)-1)
2054 XSRETURN_NO;
2055
2056 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2057
2058 if (!(prot & PROT_WRITE))
2059 SvREADONLY_on (scalar);
2060
2061 XSRETURN_YES;
2062}
2063
2064void
2065munmap (SV *scalar)
2066 CODE:
2067 sv_clear_foreign (scalar);
2068
2069SV *
2070mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
2071 CODE:
2072{
2073 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2074 void *new;
2075
2076 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2077 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2078
2079 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2080
2081 RETVAL = &PL_sv_no;
2082
2083 if (new != (void *)-1)
2084 {
2085 RETVAL = new == (void *)mg->mg_ptr
2086 ? newSVpvn ("0 but true", 10)
2087 : &PL_sv_yes;
2088
2089 mg->mg_ptr = (char *)new;
2090 mg->mg_obj = (SV *)new_length;
2091
2092 SvPVX (scalar) = mg->mg_ptr;
2093 SvCUR_set (scalar, new_length);
2094 }
2095}
2096 OUTPUT:
2097 RETVAL
2098
2099int
2100madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2101 ALIAS:
2102 mprotect = 1
2103 CODE:
2104{
2105 STRLEN svlen;
2106 void *addr = SvPVbyte (scalar, svlen);
2107 STRLEN len = SvUV (length);
2108
2109 if (offset < 0)
2110 offset += svlen;
2111
2112 if (offset < 0 || offset > svlen)
2113 croak ("offset outside of scalar");
2114
2115 if (!SvOK (length) || len + offset > svlen)
2116 len = svlen - offset;
2117
2118 addr = (void *)(((intptr_t)addr) + offset);
2119 eio_page_align (&addr, &len);
2120
2121 switch (ix)
2122 {
2123 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2124 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2125 }
2126}
2127 OUTPUT:
2128 RETVAL
2129
2130int
2131munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2132 CODE:
2133{
2134 STRLEN svlen;
2135 void *addr = SvPVbyte (scalar, svlen);
2136 size_t len = SvUV (length);
2137
2138 if (offset < 0)
2139 offset += svlen;
2140
2141 if (offset < 0 || offset > svlen)
2142 croak ("offset outside of scalar");
2143
2144 if (!SvOK (length) || len + offset > svlen)
2145 len = svlen - offset;
2146
2147 addr = (void *)(((intptr_t)addr) + offset);
2148 eio_page_align (&addr, &len);
2149#if _POSIX_MEMLOCK_RANGE
2150 RETVAL = munlock (addr, len);
2151#else
2152 RETVAL = EIO_ENOSYS ();
2153#endif
2154}
2155 OUTPUT:
2156 RETVAL
2157
2158int
2159munlockall ()
2160 CODE:
2161#if _POSIX_MEMLOCK
2162 munlockall ();
2163#else
2164 RETVAL = EIO_ENOSYS ();
2165#endif
2166 OUTPUT:
2167 RETVAL
2168
2169int
2170splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2171 CODE:
2172{
2173#if HAVE_LINUX_SPLICE
2174 loff_t off_in_, off_out_;
2175 RETVAL = splice (
2176 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2177 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2178 length, flags
2179 );
2180#else
2181 RETVAL = EIO_ENOSYS ();
2182#endif
2183}
2184 OUTPUT:
2185 RETVAL
2186
2187int
2188tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2189 CODE:
2190#if HAVE_LINUX_SPLICE
2191 RETVAL = tee (rfh, wfh, length, flags);
2192#else
2193 RETVAL = EIO_ENOSYS ();
2194#endif
2195 OUTPUT:
2196 RETVAL
2197
2198int
2199pipesize (aio_rfd rfh, int new_size = -1)
2200 PROTOTYPE: $;$
2201 CODE:
2202#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2203 if (new_size >= 0)
2204 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2205 else
2206 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2207#else
2208 errno = ENOSYS;
2209 RETVAL = -1;
2210#endif
2211 OUTPUT:
2212 RETVAL
2213
2214void
2215pipe2 (int flags = 0)
2216 PROTOTYPE: ;$
2217 PPCODE:
2218{
2219 int fd[2];
2220 int res;
2221
2222 if (flags)
2223#if HAVE_PIPE2
2224 res = pipe2 (fd, flags);
2225#else
2226 res = (errno = ENOSYS, -1);
2227#endif
2228 else
2229 res = pipe (fd);
2230
2231 if (!res)
2232 {
2233 EXTEND (SP, 2);
2234 PUSHs (newmortalFH (fd[0], O_RDONLY));
2235 PUSHs (newmortalFH (fd[1], O_WRONLY));
2236 }
2237}
2238
2239void
2240eventfd (unsigned int initval = 0, int flags = 0)
2241 PPCODE:
2242{
2243 int fd;
2244#if HAVE_EVENTFD
2245 fd = eventfd (initval, flags);
2246#else
2247 fd = (errno = ENOSYS, -1);
2248#endif
2249
2250 XPUSHs (newmortalFH (fd, O_RDWR));
2251}
2252
2253void
2254timerfd_create (int clockid, int flags = 0)
2255 PPCODE:
2256{
2257 int fd;
2258#if HAVE_TIMERFD
2259 fd = timerfd_create (clockid, flags);
2260#else
2261 fd = (errno = ENOSYS, -1);
2262#endif
2263
2264 XPUSHs (newmortalFH (fd, O_RDWR));
2265}
2266
2267void
2268timerfd_settime (SV *fh, int flags, NV interval, NV value)
2269 PPCODE:
2270{
2271 int fd = s_fileno_croak (fh, 0);
2272#if HAVE_TIMERFD
2273 int res;
2274 struct itimerspec its, ots;
2275
2276 ts_set (&its.it_interval, interval);
2277 ts_set (&its.it_value , value);
2278 res = timerfd_settime (fd, flags, &its, &ots);
2279
2280 if (!res)
2281 {
2282 EXTEND (SP, 2);
2283 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2284 PUSHs (newSVnv (ts_get (&ots.it_value)));
2285 }
2286#else
2287 errno = ENOSYS;
2288#endif
2289}
2290
2291void
2292timerfd_gettime (SV *fh)
2293 PPCODE:
2294{
2295 int fd = s_fileno_croak (fh, 0);
2296#if HAVE_TIMERFD
2297 int res;
2298 struct itimerspec ots;
2299 res = timerfd_gettime (fd, &ots);
2300
2301 if (!res)
2302 {
2303 EXTEND (SP, 2);
2304 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2305 PUSHs (newSVnv (ts_get (&ots.it_value)));
2306 }
2307#else
2308 errno = ENOSYS;
2309#endif
2310}
2311
2312UV
2313get_fdlimit ()
2314 CODE:
2315#if HAVE_RLIMITS
2316 struct rlimit rl;
2317 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2318 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2319#endif
2320 XSRETURN_UNDEF;
2321 OUTPUT:
2322 RETVAL
2323
2324void
2325min_fdlimit (UV limit = 0x7fffffffU)
2326 CODE:
2327{
2328#if HAVE_RLIMITS
2329 struct rlimit rl;
2330 rlim_t orig_rlim_max;
2331 UV bit;
2332
2333 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2334 goto fail;
2335
2336 if (rl.rlim_cur == RLIM_INFINITY)
2337 XSRETURN_YES;
2338
2339 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2340
2341 if (rl.rlim_cur < limit)
2342 {
2343 rl.rlim_cur = limit;
2344
2345 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2346 rl.rlim_max = rl.rlim_cur;
2347 }
2348
2349 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2350 XSRETURN_YES;
2351
2352 if (errno == EPERM)
2353 {
2354 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2355 /* our limit overflows a system-wide limit */
2356 /* try an adaptive algorithm, but do not lower the hardlimit */
2357 rl.rlim_max = 0;
2358 for (bit = 0x40000000U; bit; bit >>= 1)
2359 {
2360 rl.rlim_max |= bit;
2361 rl.rlim_cur = rl.rlim_max;
2362
2363 /* nevr decrease the hard limit */
2364 if (rl.rlim_max < orig_rlim_max)
2365 break;
2366
2367 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2368 rl.rlim_max &= ~bit; /* too high, remove bit again */
2369 }
2370
2371 /* now, raise the soft limit to the max permitted */
2372 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2373 {
2374 rl.rlim_cur = rl.rlim_max;
2375 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2376 errno = EPERM;
2377 }
2378 }
2379#endif
2380 fail:
2381 XSRETURN_UNDEF;
2382}
2383
2384void _on_next_submit (SV *cb)
2385 CODE:
2386 SvREFCNT_dec (on_next_submit);
2387 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2388
1877PROTOTYPES: DISABLE 2389PROTOTYPES: DISABLE
2390
2391MODULE = IO::AIO PACKAGE = IO::AIO::WD
2392
2393BOOT:
2394{
2395 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2396 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2397}
2398
2399void
2400DESTROY (SV *self)
2401 CODE:
2402{
2403 aio_wd wd = SvAIO_WD (self);
2404#if HAVE_AT
2405 {
2406 SV *callback = &PL_sv_undef;
2407 dREQ; /* clobbers next_pri :/ */
2408 next_pri = req->pri; /* restore next_pri */
2409 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2410 req->type = EIO_WD_CLOSE;
2411 req->wd = wd;
2412 REQ_SEND;
2413 }
2414#else
2415 eio_wd_close_sync (wd);
2416#endif
2417}
1878 2418
1879MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2419MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1880 2420
1881void 2421void
1882cancel (aio_req_ornot req) 2422cancel (aio_req_ornot req)
1883 CODE: 2423 CODE:
1884 req_cancel (req); 2424 eio_cancel (req);
1885 2425
1886void 2426void
1887cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2427cb (aio_req_ornot req, SV *callback = NO_INIT)
1888 CODE: 2428 PPCODE:
2429{
2430 if (GIMME_V != G_VOID)
2431 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2432
2433 if (items > 1)
2434 {
2435 SV *cb_cv = get_cb (callback);
2436
1889 SvREFCNT_dec (req->callback); 2437 SvREFCNT_dec (req->callback);
1890 req->callback = newSVsv (callback); 2438 req->callback = SvREFCNT_inc (cb_cv);
2439 }
2440}
1891 2441
1892MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2442MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1893 2443
1894void 2444void
1895add (aio_req grp, ...) 2445add (aio_req grp, ...)
1896 PPCODE: 2446 PPCODE:
1897{ 2447{
1898 int i; 2448 int i;
1899 aio_req req;
1900
1901 if (main_sig && !block_sig_level)
1902 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1903 2449
1904 if (grp->int1 == 2) 2450 if (grp->int1 == 2)
1905 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2451 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1906 2452
1907 for (i = 1; i < items; ++i ) 2453 for (i = 1; i < items; ++i )
1908 { 2454 {
2455 aio_req req;
2456
1909 if (GIMME_V != G_VOID) 2457 if (GIMME_V != G_VOID)
1910 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2458 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1911 2459
1912 req = SvAIO_REQ (ST (i)); 2460 req = SvAIO_REQ (ST (i));
1913 2461
1914 if (req) 2462 if (req)
1915 { 2463 eio_grp_add (grp, req);
1916 ++grp->size;
1917 req->grp = grp;
1918
1919 req->grp_prev = 0;
1920 req->grp_next = grp->grp_first;
1921
1922 if (grp->grp_first)
1923 grp->grp_first->grp_prev = req;
1924
1925 grp->grp_first = req;
1926 }
1927 } 2464 }
1928} 2465}
1929 2466
1930void 2467void
1931cancel_subs (aio_req_ornot req) 2468cancel_subs (aio_req_ornot req)
… …
1940 AV *av; 2477 AV *av;
1941 2478
1942 grp->errorno = errno; 2479 grp->errorno = errno;
1943 2480
1944 av = newAV (); 2481 av = newAV ();
2482 av_extend (av, items - 1);
1945 2483
1946 for (i = 1; i < items; ++i ) 2484 for (i = 1; i < items; ++i )
1947 av_push (av, newSVsv (ST (i))); 2485 av_push (av, newSVsv (ST (i)));
1948 2486
1949 SvREFCNT_dec (grp->sv1); 2487 SvREFCNT_dec (grp->sv1);
… …
1956 grp->errorno = errorno; 2494 grp->errorno = errorno;
1957 2495
1958void 2496void
1959limit (aio_req grp, int limit) 2497limit (aio_req grp, int limit)
1960 CODE: 2498 CODE:
1961 grp->int2 = limit; 2499 eio_grp_limit (grp, limit);
1962 aio_grp_feed (grp);
1963 2500
1964void 2501void
1965feed (aio_req grp, SV *callback=&PL_sv_undef) 2502feed (aio_req grp, SV *callback = &PL_sv_undef)
1966 CODE: 2503 CODE:
1967{ 2504{
1968 SvREFCNT_dec (grp->sv2); 2505 SvREFCNT_dec (grp->sv2);
1969 grp->sv2 = newSVsv (callback); 2506 grp->sv2 = newSVsv (callback);
2507 grp->feed = aio_grp_feed;
1970 2508
1971 if (grp->int2 <= 0) 2509 if (grp->int2 <= 0)
1972 grp->int2 = 2; 2510 grp->int2 = 2;
1973 2511
1974 aio_grp_feed (grp); 2512 eio_grp_limit (grp, grp->int2);
1975} 2513}
1976 2514

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