1 | #define PERL_NO_GET_CONTEXT |
|
|
2 | |
|
|
3 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
4 | #include "perl.h" |
2 | #include "perl.h" |
5 | #include "XSUB.h" |
3 | #include "XSUB.h" |
6 | |
4 | |
|
|
5 | #include "autoconf/config.h" |
|
|
6 | |
7 | #include <sys/types.h> |
7 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
8 | #include <sys/stat.h> |
|
|
9 | |
9 | #include <unistd.h> |
10 | #include <unistd.h> |
10 | #include <fcntl.h> |
11 | #include <fcntl.h> |
11 | #include <signal.h> |
12 | #include <signal.h> |
12 | #include <sched.h> |
13 | #include <sched.h> |
13 | #include <endian.h> |
|
|
14 | |
14 | |
15 | #include <pthread.h> |
15 | #include <pthread.h> |
16 | #include <sys/syscall.h> |
|
|
17 | |
16 | |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
17 | typedef void *InputStream; /* 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 *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
19 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | |
20 | |
22 | #if __i386 || __amd64 |
|
|
23 | # define STACKSIZE ( 256 * sizeof (long)) |
|
|
24 | #elif __ia64 |
21 | #if __ia64 |
25 | # define STACKSIZE (8192 * sizeof (long)) |
22 | # define STACKSIZE 65536 |
26 | #else |
23 | #else |
27 | # define STACKSIZE ( 512 * sizeof (long)) |
24 | # define STACKSIZE 4096 |
28 | #endif |
25 | #endif |
29 | |
26 | |
30 | enum { |
27 | enum { |
31 | REQ_QUIT, |
28 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
29 | REQ_OPEN, REQ_CLOSE, |
… | |
… | |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
31 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
32 | REQ_FSYNC, REQ_FDATASYNC, |
36 | }; |
33 | }; |
37 | |
34 | |
38 | typedef struct aio_cb { |
35 | typedef struct aio_cb { |
39 | struct aio_cb *next; |
36 | struct aio_cb *volatile next; |
40 | |
37 | |
41 | int type; |
38 | int type; |
42 | |
39 | |
43 | int fd; |
40 | int fd; |
44 | off_t offset; |
41 | off_t offset; |
45 | size_t length; |
42 | size_t length; |
46 | ssize_t result; |
43 | ssize_t result; |
47 | mode_t mode; /* open */ |
44 | mode_t mode; /* open */ |
48 | int errorno; |
45 | int errorno; |
49 | SV *data, *callback; |
46 | SV *data, *callback, *fh; |
50 | void *dataptr; |
47 | void *dataptr; |
51 | STRLEN dataoffset; |
48 | STRLEN dataoffset; |
52 | |
49 | |
53 | Stat_t *statdata; |
50 | Stat_t *statdata; |
54 | } aio_cb; |
51 | } aio_cb; |
55 | |
52 | |
56 | typedef aio_cb *aio_req; |
53 | typedef aio_cb *aio_req; |
57 | |
54 | |
58 | static int started; |
55 | static int started; |
59 | static int nreqs; |
56 | static volatile int nreqs; |
|
|
57 | static int max_outstanding = 1<<30; |
60 | static int reqpipe[2], respipe[2]; |
58 | static int respipe [2]; |
61 | |
59 | |
|
|
60 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
|
|
61 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
62 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
|
|
63 | |
62 | static aio_req qs, qe; /* queue start, queue end */ |
64 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
63 | |
65 | static volatile aio_req ress, rese; /* queue start, queue end */ |
64 | static void *aio_proc(void *arg); |
|
|
65 | |
|
|
66 | static void |
|
|
67 | start_thread (void) |
|
|
68 | { |
|
|
69 | sigset_t fullsigset, oldsigset; |
|
|
70 | pthread_t tid; |
|
|
71 | pthread_attr_t attr; |
|
|
72 | |
|
|
73 | pthread_attr_init (&attr); |
|
|
74 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
75 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
76 | |
|
|
77 | sigfillset (&fullsigset); |
|
|
78 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
79 | |
|
|
80 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
81 | started++; |
|
|
82 | |
|
|
83 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
84 | } |
|
|
85 | |
|
|
86 | static void |
|
|
87 | send_reqs (void) |
|
|
88 | { |
|
|
89 | /* this write is atomic */ |
|
|
90 | while (qs && write (reqpipe[1], &qs, sizeof qs) == sizeof qs) |
|
|
91 | { |
|
|
92 | qs = qs->next; |
|
|
93 | if (!qs) qe = 0; |
|
|
94 | } |
|
|
95 | } |
|
|
96 | |
|
|
97 | static void |
|
|
98 | send_req (aio_req req) |
|
|
99 | { |
|
|
100 | nreqs++; |
|
|
101 | req->next = 0; |
|
|
102 | |
|
|
103 | if (qe) |
|
|
104 | { |
|
|
105 | qe->next = req; |
|
|
106 | qe = req; |
|
|
107 | } |
|
|
108 | else |
|
|
109 | qe = qs = req; |
|
|
110 | |
|
|
111 | send_reqs (); |
|
|
112 | } |
|
|
113 | |
|
|
114 | static void |
|
|
115 | end_thread (void) |
|
|
116 | { |
|
|
117 | aio_req req; |
|
|
118 | New (0, req, 1, aio_cb); |
|
|
119 | req->type = REQ_QUIT; |
|
|
120 | |
|
|
121 | send_req (req); |
|
|
122 | } |
|
|
123 | |
|
|
124 | static void |
|
|
125 | read_write (pTHX_ |
|
|
126 | int dowrite, int fd, off_t offset, size_t length, |
|
|
127 | SV *data, STRLEN dataoffset, SV *callback) |
|
|
128 | { |
|
|
129 | aio_req req; |
|
|
130 | STRLEN svlen; |
|
|
131 | char *svptr = SvPV (data, svlen); |
|
|
132 | |
|
|
133 | SvUPGRADE (data, SVt_PV); |
|
|
134 | SvPOK_on (data); |
|
|
135 | |
|
|
136 | if (dataoffset < 0) |
|
|
137 | dataoffset += svlen; |
|
|
138 | |
|
|
139 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
140 | croak ("data offset outside of string"); |
|
|
141 | |
|
|
142 | if (dowrite) |
|
|
143 | { |
|
|
144 | /* write: check length and adjust. */ |
|
|
145 | if (length < 0 || length + dataoffset > svlen) |
|
|
146 | length = svlen - dataoffset; |
|
|
147 | } |
|
|
148 | else |
|
|
149 | { |
|
|
150 | /* read: grow scalar as necessary */ |
|
|
151 | svptr = SvGROW (data, length + dataoffset); |
|
|
152 | } |
|
|
153 | |
|
|
154 | if (length < 0) |
|
|
155 | croak ("length must not be negative"); |
|
|
156 | |
|
|
157 | Newz (0, req, 1, aio_cb); |
|
|
158 | |
|
|
159 | if (!req) |
|
|
160 | croak ("out of memory during aio_req allocation"); |
|
|
161 | |
|
|
162 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
|
|
163 | req->fd = fd; |
|
|
164 | req->offset = offset; |
|
|
165 | req->length = length; |
|
|
166 | req->data = SvREFCNT_inc (data); |
|
|
167 | req->dataptr = (char *)svptr + dataoffset; |
|
|
168 | req->callback = SvREFCNT_inc (callback); |
|
|
169 | |
|
|
170 | send_req (req); |
|
|
171 | } |
|
|
172 | |
66 | |
173 | static void |
67 | static void |
174 | poll_wait () |
68 | poll_wait () |
175 | { |
69 | { |
|
|
70 | if (nreqs && !ress) |
|
|
71 | { |
176 | fd_set rfd; |
72 | fd_set rfd; |
177 | FD_ZERO(&rfd); |
73 | FD_ZERO(&rfd); |
178 | FD_SET(respipe[0], &rfd); |
74 | FD_SET(respipe [0], &rfd); |
179 | |
75 | |
180 | select (respipe[0] + 1, &rfd, 0, 0, 0); |
76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
77 | } |
181 | } |
78 | } |
182 | |
79 | |
183 | static int |
80 | static int |
184 | poll_cb (pTHX) |
81 | poll_cb () |
185 | { |
82 | { |
186 | dSP; |
83 | dSP; |
187 | int count = 0; |
84 | int count = 0; |
188 | aio_req req; |
85 | aio_req req, prv; |
189 | |
86 | |
190 | while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
87 | pthread_mutex_lock (&reslock); |
|
|
88 | |
|
|
89 | { |
|
|
90 | /* read any signals sent by the worker threads */ |
|
|
91 | char buf [32]; |
|
|
92 | while (read (respipe [0], buf, 32) > 0) |
|
|
93 | ; |
|
|
94 | } |
|
|
95 | |
|
|
96 | req = ress; |
|
|
97 | ress = rese = 0; |
|
|
98 | |
|
|
99 | pthread_mutex_unlock (&reslock); |
|
|
100 | |
|
|
101 | while (req) |
191 | { |
102 | { |
192 | nreqs--; |
103 | nreqs--; |
193 | |
104 | |
194 | if (req->type == REQ_QUIT) |
105 | if (req->type == REQ_QUIT) |
195 | started--; |
106 | started--; |
… | |
… | |
203 | + req->result > 0 ? req->result : 0); |
114 | + req->result > 0 ? req->result : 0); |
204 | |
115 | |
205 | if (req->data) |
116 | if (req->data) |
206 | SvREFCNT_dec (req->data); |
117 | SvREFCNT_dec (req->data); |
207 | |
118 | |
|
|
119 | if (req->fh) |
|
|
120 | SvREFCNT_dec (req->fh); |
|
|
121 | |
208 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
209 | { |
123 | { |
210 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
211 | PL_laststatval = req->result; |
125 | PL_laststatval = req->result; |
212 | PL_statcache = *(req->statdata); |
126 | PL_statcache = *(req->statdata); |
213 | |
127 | |
214 | Safefree (req->statdata); |
128 | Safefree (req->statdata); |
215 | } |
129 | } |
216 | |
130 | |
|
|
131 | ENTER; |
217 | PUSHMARK (SP); |
132 | PUSHMARK (SP); |
218 | XPUSHs (sv_2mortal (newSViv (req->result))); |
133 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
134 | |
|
|
135 | if (req->type == REQ_OPEN) |
|
|
136 | { |
|
|
137 | /* convert fd to fh */ |
|
|
138 | SV *fh; |
|
|
139 | |
219 | PUTBACK; |
140 | PUTBACK; |
220 | call_sv (req->callback, G_VOID); |
141 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
221 | SPAGAIN; |
142 | SPAGAIN; |
|
|
143 | |
|
|
144 | fh = SvREFCNT_inc (POPs); |
|
|
145 | |
|
|
146 | PUSHMARK (SP); |
|
|
147 | XPUSHs (sv_2mortal (fh)); |
|
|
148 | } |
|
|
149 | |
|
|
150 | if (SvOK (req->callback)) |
|
|
151 | { |
|
|
152 | PUTBACK; |
|
|
153 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
154 | SPAGAIN; |
|
|
155 | } |
|
|
156 | |
|
|
157 | LEAVE; |
222 | |
158 | |
223 | if (req->callback) |
159 | if (req->callback) |
224 | SvREFCNT_dec (req->callback); |
160 | SvREFCNT_dec (req->callback); |
225 | |
161 | |
226 | errno = errorno; |
162 | errno = errorno; |
227 | count++; |
163 | count++; |
228 | } |
164 | } |
229 | |
165 | |
|
|
166 | prv = req; |
|
|
167 | req = req->next; |
230 | Safefree (req); |
168 | Safefree (prv); |
|
|
169 | |
|
|
170 | /* TODO: croak on errors? */ |
231 | } |
171 | } |
232 | |
172 | |
233 | if (qs) |
|
|
234 | send_reqs (); |
|
|
235 | |
|
|
236 | return count; |
173 | return count; |
|
|
174 | } |
|
|
175 | |
|
|
176 | static void *aio_proc(void *arg); |
|
|
177 | |
|
|
178 | static void |
|
|
179 | start_thread (void) |
|
|
180 | { |
|
|
181 | sigset_t fullsigset, oldsigset; |
|
|
182 | pthread_t tid; |
|
|
183 | pthread_attr_t attr; |
|
|
184 | |
|
|
185 | pthread_attr_init (&attr); |
|
|
186 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
187 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
188 | |
|
|
189 | sigfillset (&fullsigset); |
|
|
190 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
191 | |
|
|
192 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
193 | started++; |
|
|
194 | |
|
|
195 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
196 | } |
|
|
197 | |
|
|
198 | static void |
|
|
199 | send_req (aio_req req) |
|
|
200 | { |
|
|
201 | nreqs++; |
|
|
202 | |
|
|
203 | pthread_mutex_lock (&reqlock); |
|
|
204 | |
|
|
205 | req->next = 0; |
|
|
206 | |
|
|
207 | if (reqe) |
|
|
208 | { |
|
|
209 | reqe->next = req; |
|
|
210 | reqe = req; |
|
|
211 | } |
|
|
212 | else |
|
|
213 | reqe = reqs = req; |
|
|
214 | |
|
|
215 | pthread_cond_signal (&reqwait); |
|
|
216 | pthread_mutex_unlock (&reqlock); |
|
|
217 | |
|
|
218 | while (nreqs > max_outstanding) |
|
|
219 | { |
|
|
220 | poll_wait (); |
|
|
221 | poll_cb (); |
|
|
222 | } |
|
|
223 | } |
|
|
224 | |
|
|
225 | static void |
|
|
226 | end_thread (void) |
|
|
227 | { |
|
|
228 | aio_req req; |
|
|
229 | New (0, req, 1, aio_cb); |
|
|
230 | req->type = REQ_QUIT; |
|
|
231 | |
|
|
232 | send_req (req); |
237 | } |
233 | } |
238 | |
234 | |
239 | static void * |
235 | static void * |
240 | aio_proc (void *thr_arg) |
236 | aio_proc (void *thr_arg) |
241 | { |
237 | { |
242 | aio_req req; |
238 | aio_req req; |
|
|
239 | int type; |
243 | |
240 | |
244 | /* then loop */ |
241 | do |
245 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
|
|
246 | { |
242 | { |
|
|
243 | pthread_mutex_lock (&reqlock); |
|
|
244 | |
|
|
245 | for (;;) |
|
|
246 | { |
|
|
247 | req = reqs; |
|
|
248 | |
|
|
249 | if (reqs) |
|
|
250 | { |
|
|
251 | reqs = reqs->next; |
|
|
252 | if (!reqs) reqe = 0; |
|
|
253 | } |
|
|
254 | |
|
|
255 | if (req) |
|
|
256 | break; |
|
|
257 | |
|
|
258 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
259 | } |
|
|
260 | |
|
|
261 | pthread_mutex_unlock (&reqlock); |
|
|
262 | |
247 | errno = 0; /* strictly unnecessary */ |
263 | errno = 0; /* strictly unnecessary */ |
248 | |
264 | |
|
|
265 | type = req->type; |
|
|
266 | |
249 | switch (req->type) |
267 | switch (type) |
250 | { |
268 | { |
|
|
269 | #if HAVE_PREADWRITE |
251 | 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; |
252 | 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; |
253 | #if SYS_readahead |
272 | #else |
|
|
273 | # error "pread/pwrite cannot be emulated, fix your os" |
|
|
274 | #endif |
|
|
275 | |
|
|
276 | #if HAVE_READAHEAD |
254 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
277 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
255 | #else |
278 | #else |
|
|
279 | // TODO: emulate |
256 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
280 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
257 | #endif |
281 | #endif |
258 | |
282 | |
259 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
283 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
260 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
284 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
… | |
… | |
262 | |
286 | |
263 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
287 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
264 | case REQ_CLOSE: req->result = close (req->fd); break; |
288 | case REQ_CLOSE: req->result = close (req->fd); break; |
265 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
289 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
266 | |
290 | |
|
|
291 | case REQ_FDATASYNC: |
|
|
292 | #if HAVE_FDATASYNC |
|
|
293 | req->result = fdatasync (req->fd); break; |
|
|
294 | #endif |
267 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
295 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
268 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
269 | |
296 | |
270 | case REQ_QUIT: |
297 | case REQ_QUIT: |
271 | write (respipe[1], (void *)&req, sizeof (req)); |
298 | break; |
272 | return 0; |
|
|
273 | |
299 | |
274 | default: |
300 | default: |
275 | req->result = ENOSYS; |
301 | req->result = ENOSYS; |
276 | break; |
302 | break; |
277 | } |
303 | } |
278 | |
304 | |
279 | req->errorno = errno; |
305 | req->errorno = errno; |
280 | write (respipe[1], (void *)&req, sizeof (req)); |
306 | |
|
|
307 | pthread_mutex_lock (&reslock); |
|
|
308 | |
|
|
309 | req->next = 0; |
|
|
310 | |
|
|
311 | if (rese) |
|
|
312 | { |
|
|
313 | rese->next = req; |
|
|
314 | rese = req; |
|
|
315 | } |
|
|
316 | else |
|
|
317 | { |
|
|
318 | rese = ress = req; |
|
|
319 | |
|
|
320 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
321 | write (respipe [1], &respipe, 1); |
|
|
322 | } |
|
|
323 | |
|
|
324 | pthread_mutex_unlock (&reslock); |
281 | } |
325 | } |
|
|
326 | while (type != REQ_QUIT); |
282 | |
327 | |
283 | return 0; |
328 | return 0; |
284 | } |
329 | } |
285 | |
330 | |
286 | MODULE = IO::AIO PACKAGE = IO::AIO |
331 | MODULE = IO::AIO PACKAGE = IO::AIO |
287 | |
332 | |
|
|
333 | PROTOTYPES: ENABLE |
|
|
334 | |
288 | BOOT: |
335 | BOOT: |
289 | { |
336 | { |
290 | if (pipe (reqpipe) || pipe (respipe)) |
337 | if (pipe (respipe)) |
291 | croak ("unable to initialize request or result pipe"); |
338 | croak ("unable to initialize result pipe"); |
292 | |
339 | |
293 | if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK)) |
340 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
294 | croak ("cannot set result pipe to nonblocking mode"); |
341 | croak ("cannot set result pipe to nonblocking mode"); |
295 | |
342 | |
296 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
343 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
297 | croak ("cannot set result pipe to nonblocking mode"); |
344 | croak ("cannot set result pipe to nonblocking mode"); |
298 | } |
345 | } |
299 | |
346 | |
300 | void |
347 | void |
301 | min_parallel(nthreads) |
348 | min_parallel(nthreads) |
… | |
… | |
319 | } |
366 | } |
320 | |
367 | |
321 | while (started > nthreads) |
368 | while (started > nthreads) |
322 | { |
369 | { |
323 | poll_wait (); |
370 | poll_wait (); |
324 | poll_cb (aTHX); |
371 | poll_cb (); |
325 | } |
372 | } |
326 | } |
373 | } |
327 | |
374 | |
|
|
375 | int |
|
|
376 | max_outstanding(nreqs) |
|
|
377 | int nreqs |
|
|
378 | PROTOTYPE: $ |
|
|
379 | CODE: |
|
|
380 | RETVAL = max_outstanding; |
|
|
381 | max_outstanding = nreqs; |
|
|
382 | |
328 | void |
383 | void |
329 | aio_open(pathname,flags,mode,callback) |
384 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
330 | SV * pathname |
385 | SV * pathname |
331 | int flags |
386 | int flags |
332 | int mode |
387 | int mode |
333 | SV * callback |
388 | SV * callback |
334 | PROTOTYPE: $$$$ |
389 | PROTOTYPE: $$$;$ |
335 | CODE: |
390 | CODE: |
336 | { |
391 | { |
337 | aio_req req; |
392 | aio_req req; |
338 | |
393 | |
339 | Newz (0, req, 1, aio_cb); |
394 | Newz (0, req, 1, aio_cb); |
… | |
… | |
350 | |
405 | |
351 | send_req (req); |
406 | send_req (req); |
352 | } |
407 | } |
353 | |
408 | |
354 | void |
409 | void |
355 | aio_close(fh,callback) |
410 | aio_close(fh,callback=&PL_sv_undef) |
356 | InputStream fh |
411 | SV * fh |
357 | SV * callback |
412 | SV * callback |
358 | PROTOTYPE: $$ |
413 | PROTOTYPE: $;$ |
359 | ALIAS: |
414 | ALIAS: |
360 | aio_close = REQ_CLOSE |
415 | aio_close = REQ_CLOSE |
361 | aio_fsync = REQ_FSYNC |
416 | aio_fsync = REQ_FSYNC |
362 | aio_fdatasync = REQ_FDATASYNC |
417 | aio_fdatasync = REQ_FDATASYNC |
363 | CODE: |
418 | CODE: |
… | |
… | |
368 | |
423 | |
369 | if (!req) |
424 | if (!req) |
370 | croak ("out of memory during aio_req allocation"); |
425 | croak ("out of memory during aio_req allocation"); |
371 | |
426 | |
372 | req->type = ix; |
427 | req->type = ix; |
|
|
428 | req->fh = newSVsv (fh); |
373 | req->fd = PerlIO_fileno (fh); |
429 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
374 | req->callback = SvREFCNT_inc (callback); |
430 | req->callback = SvREFCNT_inc (callback); |
375 | |
431 | |
376 | send_req (req); |
432 | send_req (req); |
377 | } |
433 | } |
378 | |
434 | |
379 | void |
435 | void |
380 | aio_read(fh,offset,length,data,dataoffset,callback) |
436 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
381 | InputStream fh |
437 | SV * fh |
382 | UV offset |
438 | UV offset |
383 | IV length |
439 | IV length |
384 | SV * data |
440 | SV * data |
385 | IV dataoffset |
441 | IV dataoffset |
386 | SV * callback |
442 | SV * callback |
|
|
443 | ALIAS: |
|
|
444 | aio_read = REQ_READ |
|
|
445 | aio_write = REQ_WRITE |
387 | PROTOTYPE: $$$$$$ |
446 | PROTOTYPE: $$$$$;$ |
388 | CODE: |
447 | CODE: |
389 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
390 | |
|
|
391 | void |
|
|
392 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
393 | OutputStream fh |
|
|
394 | UV offset |
|
|
395 | IV length |
|
|
396 | SV * data |
|
|
397 | IV dataoffset |
|
|
398 | SV * callback |
|
|
399 | PROTOTYPE: $$$$$$ |
|
|
400 | CODE: |
|
|
401 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
402 | |
|
|
403 | void |
|
|
404 | aio_readahead(fh,offset,length,callback) |
|
|
405 | InputStream fh |
|
|
406 | UV offset |
|
|
407 | IV length |
|
|
408 | SV * callback |
|
|
409 | PROTOTYPE: $$$$ |
|
|
410 | CODE: |
|
|
411 | { |
448 | { |
412 | aio_req req; |
449 | aio_req req; |
|
|
450 | STRLEN svlen; |
|
|
451 | char *svptr = SvPV (data, svlen); |
|
|
452 | |
|
|
453 | SvUPGRADE (data, SVt_PV); |
|
|
454 | SvPOK_on (data); |
|
|
455 | |
|
|
456 | if (dataoffset < 0) |
|
|
457 | dataoffset += svlen; |
|
|
458 | |
|
|
459 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
460 | croak ("data offset outside of string"); |
|
|
461 | |
|
|
462 | if (ix == REQ_WRITE) |
|
|
463 | { |
|
|
464 | /* write: check length and adjust. */ |
|
|
465 | if (length < 0 || length + dataoffset > svlen) |
|
|
466 | length = svlen - dataoffset; |
|
|
467 | } |
|
|
468 | else |
|
|
469 | { |
|
|
470 | /* read: grow scalar as necessary */ |
|
|
471 | svptr = SvGROW (data, length + dataoffset); |
|
|
472 | } |
413 | |
473 | |
414 | if (length < 0) |
474 | if (length < 0) |
415 | croak ("length must not be negative"); |
475 | croak ("length must not be negative"); |
416 | |
476 | |
417 | Newz (0, req, 1, aio_cb); |
477 | Newz (0, req, 1, aio_cb); |
418 | |
478 | |
419 | if (!req) |
479 | if (!req) |
420 | croak ("out of memory during aio_req allocation"); |
480 | croak ("out of memory during aio_req allocation"); |
421 | |
481 | |
|
|
482 | req->type = ix; |
|
|
483 | req->fh = newSVsv (fh); |
|
|
484 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
485 | : IoOFP (sv_2io (fh))); |
|
|
486 | req->offset = offset; |
|
|
487 | req->length = length; |
|
|
488 | req->data = SvREFCNT_inc (data); |
|
|
489 | req->dataptr = (char *)svptr + dataoffset; |
|
|
490 | req->callback = SvREFCNT_inc (callback); |
|
|
491 | |
|
|
492 | send_req (req); |
|
|
493 | } |
|
|
494 | |
|
|
495 | void |
|
|
496 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
497 | SV * fh |
|
|
498 | UV offset |
|
|
499 | IV length |
|
|
500 | SV * callback |
|
|
501 | PROTOTYPE: $$$;$ |
|
|
502 | CODE: |
|
|
503 | { |
|
|
504 | aio_req req; |
|
|
505 | |
|
|
506 | if (length < 0) |
|
|
507 | croak ("length must not be negative"); |
|
|
508 | |
|
|
509 | Newz (0, req, 1, aio_cb); |
|
|
510 | |
|
|
511 | if (!req) |
|
|
512 | croak ("out of memory during aio_req allocation"); |
|
|
513 | |
422 | req->type = REQ_READAHEAD; |
514 | req->type = REQ_READAHEAD; |
|
|
515 | req->fh = newSVsv (fh); |
423 | req->fd = PerlIO_fileno (fh); |
516 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
424 | req->offset = offset; |
517 | req->offset = offset; |
425 | req->length = length; |
518 | req->length = length; |
426 | req->callback = SvREFCNT_inc (callback); |
519 | req->callback = SvREFCNT_inc (callback); |
427 | |
520 | |
428 | send_req (req); |
521 | send_req (req); |
429 | } |
522 | } |
430 | |
523 | |
431 | void |
524 | void |
432 | aio_stat(fh_or_path,callback) |
525 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
433 | SV * fh_or_path |
526 | SV * fh_or_path |
434 | SV * callback |
527 | SV * callback |
435 | PROTOTYPE: $$ |
|
|
436 | ALIAS: |
528 | ALIAS: |
|
|
529 | aio_stat = REQ_STAT |
437 | aio_lstat = 1 |
530 | aio_lstat = REQ_LSTAT |
438 | CODE: |
531 | CODE: |
439 | { |
532 | { |
440 | aio_req req; |
533 | aio_req req; |
441 | |
534 | |
442 | Newz (0, req, 1, aio_cb); |
535 | Newz (0, req, 1, aio_cb); |
… | |
… | |
449 | if (!req->statdata) |
542 | if (!req->statdata) |
450 | croak ("out of memory during aio_req->statdata allocation"); |
543 | croak ("out of memory during aio_req->statdata allocation"); |
451 | |
544 | |
452 | if (SvPOK (fh_or_path)) |
545 | if (SvPOK (fh_or_path)) |
453 | { |
546 | { |
454 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
547 | req->type = ix; |
455 | req->data = newSVsv (fh_or_path); |
548 | req->data = newSVsv (fh_or_path); |
456 | req->dataptr = SvPV_nolen (req->data); |
549 | req->dataptr = SvPV_nolen (req->data); |
457 | } |
550 | } |
458 | else |
551 | else |
459 | { |
552 | { |
460 | req->type = REQ_FSTAT; |
553 | req->type = REQ_FSTAT; |
|
|
554 | req->fh = newSVsv (fh_or_path); |
461 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
555 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
462 | } |
556 | } |
463 | |
557 | |
464 | req->callback = SvREFCNT_inc (callback); |
558 | req->callback = SvREFCNT_inc (callback); |
465 | |
559 | |
466 | send_req (req); |
560 | send_req (req); |
467 | } |
561 | } |
468 | |
562 | |
469 | void |
563 | void |
470 | aio_unlink(pathname,callback) |
564 | aio_unlink(pathname,callback=&PL_sv_undef) |
471 | SV * pathname |
565 | SV * pathname |
472 | SV * callback |
566 | SV * callback |
473 | PROTOTYPE: $$ |
|
|
474 | CODE: |
567 | CODE: |
475 | { |
568 | { |
476 | aio_req req; |
569 | aio_req req; |
477 | |
570 | |
478 | Newz (0, req, 1, aio_cb); |
571 | Newz (0, req, 1, aio_cb); |
… | |
… | |
486 | req->callback = SvREFCNT_inc (callback); |
579 | req->callback = SvREFCNT_inc (callback); |
487 | |
580 | |
488 | send_req (req); |
581 | send_req (req); |
489 | } |
582 | } |
490 | |
583 | |
|
|
584 | void |
|
|
585 | flush() |
|
|
586 | PROTOTYPE: |
|
|
587 | CODE: |
|
|
588 | while (nreqs) |
|
|
589 | { |
|
|
590 | poll_wait (); |
|
|
591 | poll_cb (); |
|
|
592 | } |
|
|
593 | |
|
|
594 | void |
|
|
595 | poll() |
|
|
596 | PROTOTYPE: |
|
|
597 | CODE: |
|
|
598 | if (nreqs) |
|
|
599 | { |
|
|
600 | poll_wait (); |
|
|
601 | poll_cb (); |
|
|
602 | } |
|
|
603 | |
491 | int |
604 | int |
492 | poll_fileno() |
605 | poll_fileno() |
493 | PROTOTYPE: |
606 | PROTOTYPE: |
494 | CODE: |
607 | CODE: |
495 | RETVAL = respipe[0]; |
608 | RETVAL = respipe [0]; |
496 | OUTPUT: |
609 | OUTPUT: |
497 | RETVAL |
610 | RETVAL |
498 | |
611 | |
499 | int |
612 | int |
500 | poll_cb(...) |
613 | poll_cb(...) |
501 | PROTOTYPE: |
614 | PROTOTYPE: |
502 | CODE: |
615 | CODE: |
503 | RETVAL = poll_cb (aTHX); |
616 | RETVAL = poll_cb (); |
504 | OUTPUT: |
617 | OUTPUT: |
505 | RETVAL |
618 | RETVAL |
506 | |
619 | |
507 | void |
620 | void |
508 | poll_wait() |
621 | poll_wait() |
509 | PROTOTYPE: |
622 | PROTOTYPE: |
510 | CODE: |
623 | CODE: |
|
|
624 | if (nreqs) |
511 | poll_wait (); |
625 | poll_wait (); |
512 | |
626 | |
513 | int |
627 | int |
514 | nreqs() |
628 | nreqs() |
515 | PROTOTYPE: |
629 | PROTOTYPE: |
516 | CODE: |
630 | CODE: |