… | |
… | |
8 | #include <sys/stat.h> |
8 | #include <sys/stat.h> |
9 | #include <unistd.h> |
9 | #include <unistd.h> |
10 | #include <fcntl.h> |
10 | #include <fcntl.h> |
11 | #include <signal.h> |
11 | #include <signal.h> |
12 | #include <sched.h> |
12 | #include <sched.h> |
|
|
13 | #include <endian.h> |
13 | |
14 | |
14 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
15 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
15 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
16 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
16 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
17 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
17 | |
18 | |
18 | #ifndef __NR_pread64 |
19 | #if __i386 || __amd64 |
19 | # define __NR_pread64 __NR_pread |
20 | # define STACKSIZE ( 256 * sizeof (long)) |
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|
21 | #elif __ia64 |
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|
22 | # define STACKSIZE (8192 * sizeof (long)) |
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23 | #else |
|
|
24 | # define STACKSIZE ( 512 * sizeof (long)) |
20 | #endif |
25 | #endif |
21 | #ifndef __NR_pwrite64 |
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22 | # define __NR_pwrite64 __NR_pwrite |
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23 | #endif |
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24 | |
26 | |
25 | #define STACKSIZE 1024 /* yeah */ |
27 | enum { |
26 | |
28 | REQ_QUIT, |
27 | enum { REQ_QUIT, REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, REQ_STAT, REQ_LSTAT, REQ_FSTAT}; |
29 | REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, |
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30 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK |
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31 | }; |
28 | |
32 | |
29 | typedef struct { |
33 | typedef struct { |
30 | char stack[STACKSIZE]; |
34 | char stack[STACKSIZE]; |
31 | } aio_thread; |
35 | } aio_thread; |
32 | |
36 | |
… | |
… | |
44 | int errorno; |
48 | int errorno; |
45 | SV *data, *callback; |
49 | SV *data, *callback; |
46 | void *dataptr; |
50 | void *dataptr; |
47 | STRLEN dataoffset; |
51 | STRLEN dataoffset; |
48 | |
52 | |
49 | struct stat64 *statdata; |
53 | Stat_t *statdata; |
50 | } aio_cb; |
54 | } aio_cb; |
51 | |
55 | |
52 | typedef aio_cb *aio_req; |
56 | typedef aio_cb *aio_req; |
53 | |
57 | |
54 | static int started; |
58 | static int started; |
… | |
… | |
65 | aio_thread *thr; |
69 | aio_thread *thr; |
66 | |
70 | |
67 | New (0, thr, 1, aio_thread); |
71 | New (0, thr, 1, aio_thread); |
68 | |
72 | |
69 | if (clone (aio_proc, |
73 | if (clone (aio_proc, |
70 | &(thr->stack[STACKSIZE]), |
74 | &(thr->stack[STACKSIZE - 16]), |
71 | CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND, |
75 | CLONE_VM|CLONE_FS|CLONE_FILES, |
72 | thr) >= 0) |
76 | thr) >= 0) |
73 | started++; |
77 | started++; |
74 | else |
78 | else |
75 | Safefree (thr); |
79 | Safefree (thr); |
76 | } |
80 | } |
… | |
… | |
91 | { |
95 | { |
92 | nreqs++; |
96 | nreqs++; |
93 | req->next = 0; |
97 | req->next = 0; |
94 | |
98 | |
95 | if (qe) |
99 | if (qe) |
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100 | { |
96 | qe->next = req; |
101 | qe->next = req; |
|
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102 | qe = req; |
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103 | } |
97 | else |
104 | else |
98 | qe = qs = req; |
105 | qe = qs = req; |
99 | |
106 | |
100 | send_reqs (); |
107 | send_reqs (); |
101 | } |
108 | } |
… | |
… | |
157 | req->callback = SvREFCNT_inc (callback); |
164 | req->callback = SvREFCNT_inc (callback); |
158 | |
165 | |
159 | send_req (req); |
166 | send_req (req); |
160 | } |
167 | } |
161 | |
168 | |
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169 | static void |
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170 | poll_wait () |
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171 | { |
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172 | fd_set rfd; |
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173 | FD_ZERO(&rfd); |
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174 | FD_SET(respipe[0], &rfd); |
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175 | |
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176 | select (respipe[0] + 1, &rfd, 0, 0, 0); |
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177 | } |
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178 | |
162 | static int |
179 | static int |
163 | poll_cb (pTHX) |
180 | poll_cb (pTHX) |
164 | { |
181 | { |
165 | dSP; |
182 | dSP; |
166 | int count = 0; |
183 | int count = 0; |
167 | aio_req req; |
184 | aio_req req; |
168 | |
185 | |
169 | while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
186 | while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
170 | { |
187 | { |
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188 | nreqs--; |
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189 | |
171 | if (req->type == REQ_QUIT) |
190 | if (req->type == REQ_QUIT) |
172 | { |
191 | { |
173 | Safefree (req->thread); |
192 | Safefree (req->thread); |
174 | started--; |
193 | started--; |
175 | } |
194 | } |
… | |
… | |
185 | if (req->data) |
204 | if (req->data) |
186 | SvREFCNT_dec (req->data); |
205 | SvREFCNT_dec (req->data); |
187 | |
206 | |
188 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
207 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
189 | { |
208 | { |
190 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
209 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
191 | PL_laststatval = req->result; |
210 | PL_laststatval = req->result; |
192 | PL_statcache.st_dev = req->statdata->st_dev; |
211 | PL_statcache = *(req->statdata); |
193 | PL_statcache.st_ino = req->statdata->st_ino; |
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194 | PL_statcache.st_mode = req->statdata->st_mode; |
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195 | PL_statcache.st_nlink = req->statdata->st_nlink; |
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196 | PL_statcache.st_uid = req->statdata->st_uid; |
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197 | PL_statcache.st_gid = req->statdata->st_gid; |
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198 | PL_statcache.st_rdev = req->statdata->st_rdev; |
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199 | PL_statcache.st_size = req->statdata->st_size; |
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200 | PL_statcache.st_atime = req->statdata->st_atime; |
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201 | PL_statcache.st_mtime = req->statdata->st_mtime; |
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202 | PL_statcache.st_ctime = req->statdata->st_ctime; |
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203 | PL_statcache.st_blksize = req->statdata->st_blksize; |
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204 | PL_statcache.st_blocks = req->statdata->st_blocks; |
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205 | |
212 | |
206 | Safefree (req->statdata); |
213 | Safefree (req->statdata); |
207 | } |
214 | } |
208 | |
215 | |
209 | PUSHMARK (SP); |
216 | PUSHMARK (SP); |
… | |
… | |
214 | |
221 | |
215 | if (req->callback) |
222 | if (req->callback) |
216 | SvREFCNT_dec (req->callback); |
223 | SvREFCNT_dec (req->callback); |
217 | |
224 | |
218 | errno = errorno; |
225 | errno = errorno; |
219 | nreqs--; |
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220 | count++; |
226 | count++; |
221 | } |
227 | } |
222 | |
228 | |
223 | Safefree (req); |
229 | Safefree (req); |
224 | } |
230 | } |
… | |
… | |
231 | |
237 | |
232 | static sigset_t fullsigset; |
238 | static sigset_t fullsigset; |
233 | |
239 | |
234 | #undef errno |
240 | #undef errno |
235 | #include <asm/unistd.h> |
241 | #include <asm/unistd.h> |
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242 | #include <linux/types.h> |
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243 | #include <sys/prctl.h> |
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244 | |
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245 | #if BYTE_ORDER == LITTLE_ENDIAN |
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246 | # define LONG_LONG_PAIR(HI, LO) LO, HI |
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247 | #elif BYTE_ORDER == BIG_ENDIAN |
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248 | # define LONG_LONG_PAIR(HI, LO) HI, LO |
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249 | #endif |
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250 | |
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251 | #if __alpha || __ia64 || __hppa || __v850__ |
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252 | # define stat kernelstat |
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253 | # define stat64 kernelstat64 |
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254 | # include <asm/stat.h> |
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255 | # undef stat |
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256 | # undef stat64 |
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257 | #else |
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258 | # define kernelstat stat |
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259 | # define kernelstat64 stat64 |
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260 | #endif |
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261 | |
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262 | #define COPY_STATDATA \ |
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263 | req->statdata->st_dev = statdata.st_dev; \ |
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264 | req->statdata->st_ino = statdata.st_ino; \ |
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265 | req->statdata->st_mode = statdata.st_mode; \ |
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266 | req->statdata->st_nlink = statdata.st_nlink; \ |
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267 | req->statdata->st_uid = statdata.st_uid; \ |
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268 | req->statdata->st_gid = statdata.st_gid; \ |
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269 | req->statdata->st_rdev = statdata.st_rdev; \ |
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270 | req->statdata->st_size = statdata.st_size; \ |
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271 | req->statdata->st_atime = statdata.st_atime; \ |
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272 | req->statdata->st_mtime = statdata.st_mtime; \ |
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273 | req->statdata->st_ctime = statdata.st_ctime; \ |
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274 | req->statdata->st_blksize = statdata.st_blksize; \ |
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275 | req->statdata->st_blocks = statdata.st_blocks; \ |
236 | |
276 | |
237 | static int |
277 | static int |
238 | aio_proc (void *thr_arg) |
278 | aio_proc (void *thr_arg) |
239 | { |
279 | { |
240 | aio_thread *thr = thr_arg; |
280 | aio_thread *thr = thr_arg; |
241 | aio_req req; |
281 | aio_req req; |
242 | int errno; |
282 | int errno; |
243 | |
283 | |
244 | /* this is very much x86 and kernel-specific :(:(:( */ |
284 | /* this is very much kernel-specific :(:(:( */ |
245 | /* we rely on gcc's ability to create closures. */ |
285 | /* we rely on gcc's ability to create closures. */ |
246 | _syscall3(int,read,int,fd,char *,buf,size_t,count) |
286 | _syscall3(__kernel_size_t,read,unsigned int,fd,char *,buf,__kernel_size_t,count) |
247 | _syscall3(int,write,int,fd,char *,buf,size_t,count) |
287 | _syscall3(__kernel_size_t,write,unsigned int,fd,char *,buf,__kernel_size_t,count) |
248 | |
288 | |
249 | _syscall3(int,open,char *,pathname,int,flags,mode_t,mode) |
289 | _syscall3(int,open,char *,pathname,int,flags,int,mode) |
250 | _syscall1(int,close,int,fd) |
290 | _syscall1(int,close,unsigned int,fd) |
251 | |
291 | |
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292 | #ifndef __NR_pread64 |
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293 | # define __NR_pread64 __NR_pread |
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294 | # define __NR_pwrite64 __NR_write |
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295 | #endif |
252 | _syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi) |
296 | _syscall5(__kernel_ssize_t,pread64,unsigned int,fd,char *,buf,__kernel_size_t,count,unsigned int,offset_lh,unsigned int,offset_hl) |
253 | _syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi) |
297 | _syscall5(__kernel_ssize_t,pwrite64,unsigned int,fd,char *,buf,__kernel_size_t,count,unsigned int,offset_lh,unsigned int,offset_hl) |
254 | |
298 | |
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299 | #if __NR_stat64 |
255 | _syscall2(int,stat64, const char *, filename, struct stat64 *, buf) |
300 | _syscall2(int,stat64, const char *, filename, struct kernelstat64 *, buf) |
256 | _syscall2(int,lstat64, const char *, filename, struct stat64 *, buf) |
301 | _syscall2(int,lstat64, const char *, filename, struct kernelstat64 *, buf) |
257 | _syscall2(int,fstat64, int, fd, struct stat64 *, buf) |
302 | _syscall2(int,fstat64, int, fd, struct kernelstat64 *, buf) |
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303 | #elif __NR_stat |
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304 | _syscall2(int,stat, const char *, filename, struct kernelstat *, buf) |
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305 | _syscall2(int,lstat, const char *, filename, struct kernelstat *, buf) |
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306 | _syscall2(int,fstat, int, fd, struct kernelstat *, buf) |
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307 | #else |
|
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308 | # error "neither stat64 nor stat defined" |
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309 | #endif |
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310 | |
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311 | _syscall1(int,unlink, char *, filename); |
258 | |
312 | |
259 | sigprocmask (SIG_SETMASK, &fullsigset, 0); |
313 | sigprocmask (SIG_SETMASK, &fullsigset, 0); |
|
|
314 | prctl (PR_SET_PDEATHSIG, SIGKILL); |
260 | |
315 | |
261 | /* then loop */ |
316 | /* then loop */ |
262 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
317 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
263 | { |
318 | { |
264 | req->thread = thr; |
319 | req->thread = thr; |
265 | errno = 0; /* strictly unnecessary */ |
320 | errno = 0; /* strictly unnecessary */ |
266 | |
321 | |
267 | switch (req->type) |
322 | switch (req->type) |
268 | { |
323 | { |
269 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break; |
324 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, |
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325 | LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break; |
270 | case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break; |
326 | case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, |
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327 | LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break; |
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328 | #if __NR_stat64 |
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329 | struct kernelstat64 statdata; |
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330 | case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break; |
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331 | case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break; |
|
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332 | case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break; |
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333 | #else |
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334 | struct kernelstat statdata; |
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335 | case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break; |
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336 | case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break; |
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337 | case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break; |
|
|
338 | #endif |
271 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
339 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
272 | case REQ_CLOSE: req->result = close (req->fd); break; |
340 | case REQ_CLOSE: req->result = close (req->fd); break; |
273 | case REQ_STAT: req->result = stat64 (req->dataptr, req->statdata); break; |
|
|
274 | case REQ_LSTAT: req->result = lstat64 (req->dataptr, req->statdata); break; |
341 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
275 | case REQ_FSTAT: req->result = fstat64 (req->fd, req->statdata); break; |
|
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276 | |
342 | |
277 | case REQ_QUIT: |
343 | case REQ_QUIT: |
278 | default: |
344 | default: |
279 | write (respipe[1], (void *)&req, sizeof (req)); |
345 | write (respipe[1], (void *)&req, sizeof (req)); |
280 | return 0; |
346 | return 0; |
… | |
… | |
327 | cur--; |
393 | cur--; |
328 | } |
394 | } |
329 | |
395 | |
330 | while (started > nthreads) |
396 | while (started > nthreads) |
331 | { |
397 | { |
332 | fd_set rfd; |
398 | poll_wait (); |
333 | FD_ZERO(&rfd); |
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334 | FD_SET(respipe[0], &rfd); |
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335 | |
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336 | select (respipe[0] + 1, &rfd, 0, 0, 0); |
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337 | poll_cb (aTHX); |
399 | poll_cb (aTHX); |
338 | } |
400 | } |
339 | |
401 | |
340 | void |
402 | void |
341 | aio_open(pathname,flags,mode,callback) |
403 | aio_open(pathname,flags,mode,callback) |
… | |
… | |
417 | Newz (0, req, 1, aio_cb); |
479 | Newz (0, req, 1, aio_cb); |
418 | |
480 | |
419 | if (!req) |
481 | if (!req) |
420 | croak ("out of memory during aio_req allocation"); |
482 | croak ("out of memory during aio_req allocation"); |
421 | |
483 | |
422 | New (0, req->statdata, 1, struct stat64); |
484 | New (0, req->statdata, 1, Stat_t); |
423 | |
485 | |
424 | if (!req->statdata) |
486 | if (!req->statdata) |
425 | croak ("out of memory during aio_req->statdata allocation"); |
487 | croak ("out of memory during aio_req->statdata allocation"); |
426 | |
488 | |
427 | if (SvPOK (fh_or_path)) |
489 | if (SvPOK (fh_or_path)) |
… | |
… | |
438 | |
500 | |
439 | req->callback = SvREFCNT_inc (callback); |
501 | req->callback = SvREFCNT_inc (callback); |
440 | |
502 | |
441 | send_req (req); |
503 | send_req (req); |
442 | |
504 | |
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505 | void |
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506 | aio_unlink(pathname,callback) |
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507 | SV * pathname |
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508 | SV * callback |
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|
509 | PROTOTYPE: $$ |
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510 | CODE: |
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511 | aio_req req; |
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512 | |
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513 | Newz (0, req, 1, aio_cb); |
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514 | |
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515 | if (!req) |
|
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516 | croak ("out of memory during aio_req allocation"); |
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517 | |
|
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518 | req->type = REQ_UNLINK; |
|
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519 | req->data = newSVsv (pathname); |
|
|
520 | req->dataptr = SvPV_nolen (req->data); |
|
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521 | req->callback = SvREFCNT_inc (callback); |
|
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522 | |
|
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523 | send_req (req); |
|
|
524 | |
443 | int |
525 | int |
444 | poll_fileno() |
526 | poll_fileno() |
445 | PROTOTYPE: |
527 | PROTOTYPE: |
446 | CODE: |
528 | CODE: |
447 | RETVAL = respipe[0]; |
529 | RETVAL = respipe[0]; |
… | |
… | |
454 | CODE: |
536 | CODE: |
455 | RETVAL = poll_cb (aTHX); |
537 | RETVAL = poll_cb (aTHX); |
456 | OUTPUT: |
538 | OUTPUT: |
457 | RETVAL |
539 | RETVAL |
458 | |
540 | |
|
|
541 | void |
|
|
542 | poll_wait() |
|
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543 | PROTOTYPE: |
|
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544 | CODE: |
|
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545 | poll_wait (); |
|
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546 | |
459 | int |
547 | int |
460 | nreqs() |
548 | nreqs() |
461 | PROTOTYPE: |
549 | PROTOTYPE: |
462 | CODE: |
550 | CODE: |
463 | RETVAL = nreqs; |
551 | RETVAL = nreqs; |