… | |
… | |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | #include <sys/types.h> |
5 | #include <sys/types.h> |
6 | #include <sys/stat.h> |
6 | #include <sys/stat.h> |
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|
7 | |
7 | #include <unistd.h> |
8 | #include <unistd.h> |
8 | #include <fcntl.h> |
9 | #include <fcntl.h> |
9 | #include <signal.h> |
10 | #include <signal.h> |
10 | #include <sched.h> |
11 | #include <sched.h> |
11 | #include <endian.h> |
12 | #if __linux |
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|
13 | #include <sys/syscall.h> |
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|
14 | #endif |
12 | |
15 | |
13 | #include <pthread.h> |
16 | #include <pthread.h> |
14 | #include <sys/syscall.h> |
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|
15 | |
17 | |
16 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
17 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
19 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
18 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
19 | |
21 | |
… | |
… | |
40 | off_t offset; |
42 | off_t offset; |
41 | size_t length; |
43 | size_t length; |
42 | ssize_t result; |
44 | ssize_t result; |
43 | mode_t mode; /* open */ |
45 | mode_t mode; /* open */ |
44 | int errorno; |
46 | int errorno; |
45 | SV *data, *callback; |
47 | SV *data, *callback, *fh; |
46 | void *dataptr; |
48 | void *dataptr; |
47 | STRLEN dataoffset; |
49 | STRLEN dataoffset; |
48 | |
50 | |
49 | Stat_t *statdata; |
51 | Stat_t *statdata; |
50 | } aio_cb; |
52 | } aio_cb; |
51 | |
53 | |
52 | typedef aio_cb *aio_req; |
54 | typedef aio_cb *aio_req; |
53 | |
55 | |
54 | static int started; |
56 | static int started; |
55 | static int nreqs; |
57 | static volatile int nreqs; |
56 | static int max_outstanding = 1<<30; |
58 | static int max_outstanding = 1<<30; |
57 | static int respipe [2]; |
59 | static int respipe [2]; |
58 | |
60 | |
59 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
61 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
60 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
62 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
… | |
… | |
64 | static volatile aio_req ress, rese; /* queue start, queue end */ |
66 | static volatile aio_req ress, rese; /* queue start, queue end */ |
65 | |
67 | |
66 | static void |
68 | static void |
67 | poll_wait () |
69 | poll_wait () |
68 | { |
70 | { |
69 | if (!nreqs) |
71 | if (nreqs && !ress) |
70 | return; |
72 | { |
71 | |
|
|
72 | fd_set rfd; |
73 | fd_set rfd; |
73 | FD_ZERO(&rfd); |
74 | FD_ZERO(&rfd); |
74 | FD_SET(respipe [0], &rfd); |
75 | FD_SET(respipe [0], &rfd); |
75 | |
76 | |
76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
77 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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|
78 | } |
77 | } |
79 | } |
78 | |
80 | |
79 | static int |
81 | static int |
80 | poll_cb () |
82 | poll_cb () |
81 | { |
83 | { |
82 | dSP; |
84 | dSP; |
83 | int count = 0; |
85 | int count = 0; |
84 | aio_req req; |
86 | aio_req req, prv; |
85 | |
87 | |
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|
88 | pthread_mutex_lock (&reslock); |
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89 | |
86 | { |
90 | { |
87 | /* read and signals sent by the worker threads */ |
91 | /* read any signals sent by the worker threads */ |
88 | char buf [32]; |
92 | char buf [32]; |
89 | while (read (respipe [0], buf, 32) > 0) |
93 | while (read (respipe [0], buf, 32) > 0) |
90 | ; |
94 | ; |
91 | } |
95 | } |
92 | |
96 | |
93 | for (;;) |
97 | req = ress; |
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98 | ress = rese = 0; |
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99 | |
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100 | pthread_mutex_unlock (&reslock); |
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101 | |
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102 | while (req) |
94 | { |
103 | { |
95 | pthread_mutex_lock (&reslock); |
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96 | |
|
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97 | req = ress; |
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98 | |
|
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99 | if (ress) |
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100 | { |
|
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101 | ress = ress->next; |
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102 | if (!ress) rese = 0; |
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103 | } |
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104 | |
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105 | pthread_mutex_unlock (&reslock); |
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106 | |
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107 | if (!req) |
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108 | break; |
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109 | |
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110 | nreqs--; |
104 | nreqs--; |
111 | |
105 | |
112 | if (req->type == REQ_QUIT) |
106 | if (req->type == REQ_QUIT) |
113 | started--; |
107 | started--; |
114 | else |
108 | else |
… | |
… | |
121 | + req->result > 0 ? req->result : 0); |
115 | + req->result > 0 ? req->result : 0); |
122 | |
116 | |
123 | if (req->data) |
117 | if (req->data) |
124 | SvREFCNT_dec (req->data); |
118 | SvREFCNT_dec (req->data); |
125 | |
119 | |
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120 | if (req->fh) |
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121 | SvREFCNT_dec (req->fh); |
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122 | |
126 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
123 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
127 | { |
124 | { |
128 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
125 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
129 | PL_laststatval = req->result; |
126 | PL_laststatval = req->result; |
130 | PL_statcache = *(req->statdata); |
127 | PL_statcache = *(req->statdata); |
131 | |
128 | |
132 | Safefree (req->statdata); |
129 | Safefree (req->statdata); |
133 | } |
130 | } |
134 | |
131 | |
|
|
132 | ENTER; |
135 | PUSHMARK (SP); |
133 | PUSHMARK (SP); |
136 | XPUSHs (sv_2mortal (newSViv (req->result))); |
134 | XPUSHs (sv_2mortal (newSViv (req->result))); |
137 | |
135 | |
138 | if (req->type == REQ_OPEN) |
136 | if (req->type == REQ_OPEN) |
139 | { |
137 | { |
… | |
… | |
142 | |
140 | |
143 | PUTBACK; |
141 | PUTBACK; |
144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
142 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
145 | SPAGAIN; |
143 | SPAGAIN; |
146 | |
144 | |
147 | fh = POPs; |
145 | fh = SvREFCNT_inc (POPs); |
148 | |
146 | |
149 | PUSHMARK (SP); |
147 | PUSHMARK (SP); |
150 | XPUSHs (fh); |
148 | XPUSHs (sv_2mortal (fh)); |
151 | } |
149 | } |
152 | |
150 | |
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151 | if (SvOK (req->callback)) |
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152 | { |
153 | PUTBACK; |
153 | PUTBACK; |
154 | call_sv (req->callback, G_VOID | G_EVAL); |
154 | call_sv (req->callback, G_VOID | G_EVAL); |
155 | SPAGAIN; |
155 | SPAGAIN; |
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156 | } |
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157 | |
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158 | LEAVE; |
156 | |
159 | |
157 | if (req->callback) |
160 | if (req->callback) |
158 | SvREFCNT_dec (req->callback); |
161 | SvREFCNT_dec (req->callback); |
159 | |
162 | |
160 | errno = errorno; |
163 | errno = errorno; |
161 | count++; |
164 | count++; |
162 | } |
165 | } |
163 | |
166 | |
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167 | prv = req; |
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168 | req = req->next; |
164 | Safefree (req); |
169 | Safefree (prv); |
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170 | |
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171 | /* TODO: croak on errors? */ |
165 | } |
172 | } |
166 | |
173 | |
167 | return count; |
174 | return count; |
168 | } |
175 | } |
169 | |
176 | |
… | |
… | |
224 | req->type = REQ_QUIT; |
231 | req->type = REQ_QUIT; |
225 | |
232 | |
226 | send_req (req); |
233 | send_req (req); |
227 | } |
234 | } |
228 | |
235 | |
229 | static void |
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230 | read_write (int dowrite, int fd, off_t offset, size_t length, |
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231 | SV *data, STRLEN dataoffset, SV *callback) |
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232 | { |
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233 | aio_req req; |
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234 | STRLEN svlen; |
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235 | char *svptr = SvPV (data, svlen); |
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236 | |
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237 | SvUPGRADE (data, SVt_PV); |
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238 | SvPOK_on (data); |
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239 | |
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240 | if (dataoffset < 0) |
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241 | dataoffset += svlen; |
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242 | |
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243 | if (dataoffset < 0 || dataoffset > svlen) |
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244 | croak ("data offset outside of string"); |
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245 | |
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246 | if (dowrite) |
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247 | { |
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248 | /* write: check length and adjust. */ |
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249 | if (length < 0 || length + dataoffset > svlen) |
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250 | length = svlen - dataoffset; |
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251 | } |
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252 | else |
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253 | { |
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254 | /* read: grow scalar as necessary */ |
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255 | svptr = SvGROW (data, length + dataoffset); |
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256 | } |
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257 | |
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258 | if (length < 0) |
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259 | croak ("length must not be negative"); |
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260 | |
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261 | Newz (0, req, 1, aio_cb); |
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262 | |
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263 | if (!req) |
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264 | croak ("out of memory during aio_req allocation"); |
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265 | |
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266 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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267 | req->fd = fd; |
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268 | req->offset = offset; |
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269 | req->length = length; |
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270 | req->data = SvREFCNT_inc (data); |
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271 | req->dataptr = (char *)svptr + dataoffset; |
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272 | req->callback = SvREFCNT_inc (callback); |
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273 | |
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274 | send_req (req); |
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275 | } |
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276 | |
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277 | static void * |
236 | static void * |
278 | aio_proc (void *thr_arg) |
237 | aio_proc (void *thr_arg) |
279 | { |
238 | { |
280 | aio_req req; |
239 | aio_req req; |
281 | int type; |
240 | int type; |
… | |
… | |
306 | |
265 | |
307 | type = req->type; |
266 | type = req->type; |
308 | |
267 | |
309 | switch (type) |
268 | switch (type) |
310 | { |
269 | { |
311 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
270 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
312 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
271 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
313 | #if SYS_readahead |
272 | #if SYS_readahead |
314 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
273 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
315 | #else |
274 | #else |
316 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
275 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
317 | #endif |
276 | #endif |
… | |
… | |
361 | return 0; |
320 | return 0; |
362 | } |
321 | } |
363 | |
322 | |
364 | MODULE = IO::AIO PACKAGE = IO::AIO |
323 | MODULE = IO::AIO PACKAGE = IO::AIO |
365 | |
324 | |
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325 | PROTOTYPES: ENABLE |
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326 | |
366 | BOOT: |
327 | BOOT: |
367 | { |
328 | { |
368 | if (pipe (respipe)) |
329 | if (pipe (respipe)) |
369 | croak ("unable to initialize result pipe"); |
330 | croak ("unable to initialize result pipe"); |
370 | |
331 | |
… | |
… | |
410 | CODE: |
371 | CODE: |
411 | RETVAL = max_outstanding; |
372 | RETVAL = max_outstanding; |
412 | max_outstanding = nreqs; |
373 | max_outstanding = nreqs; |
413 | |
374 | |
414 | void |
375 | void |
415 | aio_open(pathname,flags,mode,callback) |
376 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
416 | SV * pathname |
377 | SV * pathname |
417 | int flags |
378 | int flags |
418 | int mode |
379 | int mode |
419 | SV * callback |
380 | SV * callback |
420 | PROTOTYPE: $$$$ |
381 | PROTOTYPE: $$$;$ |
421 | CODE: |
382 | CODE: |
422 | { |
383 | { |
423 | aio_req req; |
384 | aio_req req; |
424 | |
385 | |
425 | Newz (0, req, 1, aio_cb); |
386 | Newz (0, req, 1, aio_cb); |
… | |
… | |
436 | |
397 | |
437 | send_req (req); |
398 | send_req (req); |
438 | } |
399 | } |
439 | |
400 | |
440 | void |
401 | void |
441 | aio_close(fh,callback) |
402 | aio_close(fh,callback=&PL_sv_undef) |
442 | InputStream fh |
403 | SV * fh |
443 | SV * callback |
404 | SV * callback |
444 | PROTOTYPE: $$ |
405 | PROTOTYPE: $;$ |
445 | ALIAS: |
406 | ALIAS: |
446 | aio_close = REQ_CLOSE |
407 | aio_close = REQ_CLOSE |
447 | aio_fsync = REQ_FSYNC |
408 | aio_fsync = REQ_FSYNC |
448 | aio_fdatasync = REQ_FDATASYNC |
409 | aio_fdatasync = REQ_FDATASYNC |
449 | CODE: |
410 | CODE: |
… | |
… | |
454 | |
415 | |
455 | if (!req) |
416 | if (!req) |
456 | croak ("out of memory during aio_req allocation"); |
417 | croak ("out of memory during aio_req allocation"); |
457 | |
418 | |
458 | req->type = ix; |
419 | req->type = ix; |
|
|
420 | req->fh = newSVsv (fh); |
459 | req->fd = PerlIO_fileno (fh); |
421 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
460 | req->callback = SvREFCNT_inc (callback); |
422 | req->callback = SvREFCNT_inc (callback); |
461 | |
423 | |
462 | send_req (req); |
424 | send_req (req); |
463 | } |
425 | } |
464 | |
426 | |
465 | void |
427 | void |
466 | aio_read(fh,offset,length,data,dataoffset,callback) |
428 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
467 | InputStream fh |
429 | SV * fh |
468 | UV offset |
430 | UV offset |
469 | IV length |
431 | IV length |
470 | SV * data |
432 | SV * data |
471 | IV dataoffset |
433 | IV dataoffset |
472 | SV * callback |
434 | SV * callback |
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|
435 | ALIAS: |
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436 | aio_read = REQ_READ |
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437 | aio_write = REQ_WRITE |
473 | PROTOTYPE: $$$$$$ |
438 | PROTOTYPE: $$$$$;$ |
474 | CODE: |
439 | CODE: |
475 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
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476 | |
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477 | void |
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478 | aio_write(fh,offset,length,data,dataoffset,callback) |
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479 | OutputStream fh |
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480 | UV offset |
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481 | IV length |
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482 | SV * data |
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483 | IV dataoffset |
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484 | SV * callback |
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485 | PROTOTYPE: $$$$$$ |
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486 | CODE: |
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487 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
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488 | |
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489 | void |
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490 | aio_readahead(fh,offset,length,callback) |
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491 | InputStream fh |
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492 | UV offset |
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493 | IV length |
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494 | SV * callback |
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|
495 | PROTOTYPE: $$$$ |
|
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496 | CODE: |
|
|
497 | { |
440 | { |
498 | aio_req req; |
441 | aio_req req; |
|
|
442 | STRLEN svlen; |
|
|
443 | char *svptr = SvPV (data, svlen); |
|
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444 | |
|
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445 | SvUPGRADE (data, SVt_PV); |
|
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446 | SvPOK_on (data); |
|
|
447 | |
|
|
448 | if (dataoffset < 0) |
|
|
449 | dataoffset += svlen; |
|
|
450 | |
|
|
451 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
452 | croak ("data offset outside of string"); |
|
|
453 | |
|
|
454 | if (ix == REQ_WRITE) |
|
|
455 | { |
|
|
456 | /* write: check length and adjust. */ |
|
|
457 | if (length < 0 || length + dataoffset > svlen) |
|
|
458 | length = svlen - dataoffset; |
|
|
459 | } |
|
|
460 | else |
|
|
461 | { |
|
|
462 | /* read: grow scalar as necessary */ |
|
|
463 | svptr = SvGROW (data, length + dataoffset); |
|
|
464 | } |
499 | |
465 | |
500 | if (length < 0) |
466 | if (length < 0) |
501 | croak ("length must not be negative"); |
467 | croak ("length must not be negative"); |
502 | |
468 | |
503 | Newz (0, req, 1, aio_cb); |
469 | Newz (0, req, 1, aio_cb); |
504 | |
470 | |
505 | if (!req) |
471 | if (!req) |
506 | croak ("out of memory during aio_req allocation"); |
472 | croak ("out of memory during aio_req allocation"); |
507 | |
473 | |
|
|
474 | req->type = ix; |
|
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475 | req->fh = newSVsv (fh); |
|
|
476 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
477 | : IoOFP (sv_2io (fh))); |
|
|
478 | req->offset = offset; |
|
|
479 | req->length = length; |
|
|
480 | req->data = SvREFCNT_inc (data); |
|
|
481 | req->dataptr = (char *)svptr + dataoffset; |
|
|
482 | req->callback = SvREFCNT_inc (callback); |
|
|
483 | |
|
|
484 | send_req (req); |
|
|
485 | } |
|
|
486 | |
|
|
487 | void |
|
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488 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
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489 | SV * fh |
|
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490 | UV offset |
|
|
491 | IV length |
|
|
492 | SV * callback |
|
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493 | PROTOTYPE: $$$;$ |
|
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494 | CODE: |
|
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495 | { |
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496 | aio_req req; |
|
|
497 | |
|
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498 | if (length < 0) |
|
|
499 | croak ("length must not be negative"); |
|
|
500 | |
|
|
501 | Newz (0, req, 1, aio_cb); |
|
|
502 | |
|
|
503 | if (!req) |
|
|
504 | croak ("out of memory during aio_req allocation"); |
|
|
505 | |
508 | req->type = REQ_READAHEAD; |
506 | req->type = REQ_READAHEAD; |
|
|
507 | req->fh = newSVsv (fh); |
509 | req->fd = PerlIO_fileno (fh); |
508 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
510 | req->offset = offset; |
509 | req->offset = offset; |
511 | req->length = length; |
510 | req->length = length; |
512 | req->callback = SvREFCNT_inc (callback); |
511 | req->callback = SvREFCNT_inc (callback); |
513 | |
512 | |
514 | send_req (req); |
513 | send_req (req); |
515 | } |
514 | } |
516 | |
515 | |
517 | void |
516 | void |
518 | aio_stat(fh_or_path,callback) |
517 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
519 | SV * fh_or_path |
518 | SV * fh_or_path |
520 | SV * callback |
519 | SV * callback |
521 | PROTOTYPE: $$ |
|
|
522 | ALIAS: |
520 | ALIAS: |
|
|
521 | aio_stat = REQ_STAT |
523 | aio_lstat = 1 |
522 | aio_lstat = REQ_LSTAT |
524 | CODE: |
523 | CODE: |
525 | { |
524 | { |
526 | aio_req req; |
525 | aio_req req; |
527 | |
526 | |
528 | Newz (0, req, 1, aio_cb); |
527 | Newz (0, req, 1, aio_cb); |
… | |
… | |
535 | if (!req->statdata) |
534 | if (!req->statdata) |
536 | croak ("out of memory during aio_req->statdata allocation"); |
535 | croak ("out of memory during aio_req->statdata allocation"); |
537 | |
536 | |
538 | if (SvPOK (fh_or_path)) |
537 | if (SvPOK (fh_or_path)) |
539 | { |
538 | { |
540 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
539 | req->type = ix; |
541 | req->data = newSVsv (fh_or_path); |
540 | req->data = newSVsv (fh_or_path); |
542 | req->dataptr = SvPV_nolen (req->data); |
541 | req->dataptr = SvPV_nolen (req->data); |
543 | } |
542 | } |
544 | else |
543 | else |
545 | { |
544 | { |
546 | req->type = REQ_FSTAT; |
545 | req->type = REQ_FSTAT; |
|
|
546 | req->fh = newSVsv (fh_or_path); |
547 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
547 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
548 | } |
548 | } |
549 | |
549 | |
550 | req->callback = SvREFCNT_inc (callback); |
550 | req->callback = SvREFCNT_inc (callback); |
551 | |
551 | |
552 | send_req (req); |
552 | send_req (req); |
553 | } |
553 | } |
554 | |
554 | |
555 | void |
555 | void |
556 | aio_unlink(pathname,callback) |
556 | aio_unlink(pathname,callback=&PL_sv_undef) |
557 | SV * pathname |
557 | SV * pathname |
558 | SV * callback |
558 | SV * callback |
559 | PROTOTYPE: $$ |
|
|
560 | CODE: |
559 | CODE: |
561 | { |
560 | { |
562 | aio_req req; |
561 | aio_req req; |
563 | |
562 | |
564 | Newz (0, req, 1, aio_cb); |
563 | Newz (0, req, 1, aio_cb); |
… | |
… | |
572 | req->callback = SvREFCNT_inc (callback); |
571 | req->callback = SvREFCNT_inc (callback); |
573 | |
572 | |
574 | send_req (req); |
573 | send_req (req); |
575 | } |
574 | } |
576 | |
575 | |
|
|
576 | void |
|
|
577 | flush() |
|
|
578 | PROTOTYPE: |
|
|
579 | CODE: |
|
|
580 | while (nreqs) |
|
|
581 | { |
|
|
582 | poll_wait (); |
|
|
583 | poll_cb (); |
|
|
584 | } |
|
|
585 | |
|
|
586 | void |
|
|
587 | poll() |
|
|
588 | PROTOTYPE: |
|
|
589 | CODE: |
|
|
590 | if (nreqs) |
|
|
591 | { |
|
|
592 | poll_wait (); |
|
|
593 | poll_cb (); |
|
|
594 | } |
|
|
595 | |
577 | int |
596 | int |
578 | poll_fileno() |
597 | poll_fileno() |
579 | PROTOTYPE: |
598 | PROTOTYPE: |
580 | CODE: |
599 | CODE: |
581 | RETVAL = respipe [0]; |
600 | RETVAL = respipe [0]; |