1 | #if __linux |
1 | /* solaris */ |
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2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
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4 | #if __linux && !defined(_GNU_SOURCE) |
2 | # define _GNU_SOURCE |
5 | # define _GNU_SOURCE |
3 | #endif |
6 | #endif |
4 | |
7 | |
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8 | /* just in case */ |
5 | #define _REENTRANT 1 |
9 | #define _REENTRANT 1 |
6 | |
10 | |
7 | #include <errno.h> |
11 | #include <errno.h> |
8 | |
12 | |
9 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
… | |
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44 | /* used for struct dirent, AIX doesn't provide it */ |
48 | /* used for struct dirent, AIX doesn't provide it */ |
45 | #ifndef NAME_MAX |
49 | #ifndef NAME_MAX |
46 | # define NAME_MAX 4096 |
50 | # define NAME_MAX 4096 |
47 | #endif |
51 | #endif |
48 | |
52 | |
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53 | #ifndef PTHREAD_STACK_MIN |
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54 | /* care for broken platforms, e.g. windows */ |
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55 | # define PTHREAD_STACK_MIN 16384 |
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56 | #endif |
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57 | |
49 | #if __ia64 |
58 | #if __ia64 |
50 | # define STACKSIZE 65536 |
59 | # define STACKSIZE 65536 |
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60 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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61 | # define STACKSIZE PTHREAD_STACK_MIN |
51 | #else |
62 | #else |
52 | # define STACKSIZE 8192 |
63 | # define STACKSIZE 16384 |
53 | #endif |
64 | #endif |
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65 | |
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66 | /* buffer size for various temporary buffers */ |
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67 | #define AIO_BUFSIZE 65536 |
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68 | |
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69 | #define dBUF \ |
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70 | char *aio_buf; \ |
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71 | LOCK (wrklock); \ |
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72 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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73 | UNLOCK (wrklock); \ |
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74 | if (!aio_buf) \ |
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75 | return -1; |
54 | |
76 | |
55 | enum { |
77 | enum { |
56 | REQ_QUIT, |
78 | REQ_QUIT, |
57 | REQ_OPEN, REQ_CLOSE, |
79 | REQ_OPEN, REQ_CLOSE, |
58 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
80 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
… | |
… | |
61 | REQ_FSYNC, REQ_FDATASYNC, |
83 | REQ_FSYNC, REQ_FDATASYNC, |
62 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
84 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
63 | REQ_READDIR, |
85 | REQ_READDIR, |
64 | REQ_LINK, REQ_SYMLINK, |
86 | REQ_LINK, REQ_SYMLINK, |
65 | REQ_GROUP, REQ_NOP, |
87 | REQ_GROUP, REQ_NOP, |
66 | REQ_SLEEP, |
88 | REQ_BUSY, |
67 | }; |
89 | }; |
68 | |
90 | |
69 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
91 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
70 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
92 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
71 | |
93 | |
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105 | PRI_MIN = -4, |
127 | PRI_MIN = -4, |
106 | PRI_MAX = 4, |
128 | PRI_MAX = 4, |
107 | |
129 | |
108 | DEFAULT_PRI = 0, |
130 | DEFAULT_PRI = 0, |
109 | PRI_BIAS = -PRI_MIN, |
131 | PRI_BIAS = -PRI_MIN, |
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132 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
110 | }; |
133 | }; |
111 | |
134 | |
112 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
135 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
113 | |
136 | |
114 | static int started, wanted; |
137 | static int started, wanted; |
115 | static volatile int nreqs; |
138 | static volatile int nreqs; |
116 | static int max_outstanding = 1<<30; |
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117 | static int respipe [2]; |
139 | static int respipe [2]; |
118 | |
140 | |
119 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
141 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
120 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
142 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
121 | #else |
143 | #else |
122 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
144 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
123 | #endif |
145 | #endif |
124 | |
146 | |
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147 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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148 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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149 | |
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150 | /* worker threads management */ |
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151 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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152 | |
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153 | typedef struct worker { |
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154 | /* locked by wrklock */ |
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155 | struct worker *prev, *next; |
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156 | |
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157 | pthread_t tid; |
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158 | |
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159 | /* locked by reslock, reqlock or wrklock */ |
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160 | aio_req req; /* currently processed request */ |
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161 | void *dbuf; |
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162 | DIR *dirp; |
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163 | } worker; |
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164 | |
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165 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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166 | |
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167 | static void worker_clear (worker *wrk) |
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168 | { |
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169 | if (wrk->dirp) |
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170 | { |
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171 | closedir (wrk->dirp); |
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172 | wrk->dirp = 0; |
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173 | } |
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174 | |
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175 | if (wrk->dbuf) |
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176 | { |
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177 | free (wrk->dbuf); |
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178 | wrk->dbuf = 0; |
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179 | } |
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180 | } |
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181 | |
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182 | static void worker_free (worker *wrk) |
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183 | { |
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184 | wrk->next->prev = wrk->prev; |
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185 | wrk->prev->next = wrk->next; |
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186 | |
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187 | free (wrk); |
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188 | } |
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189 | |
125 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
190 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
126 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
191 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
127 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
192 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
128 | |
193 | |
129 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
194 | /* |
130 | static volatile aio_req ress, rese; /* queue start, queue end */ |
195 | * a somewhat faster data structure might be nice, but |
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196 | * with 8 priorities this actually needs <20 insns |
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197 | * per shift, the most expensive operation. |
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198 | */ |
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199 | typedef struct { |
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200 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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201 | int size; |
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202 | } reqq; |
131 | |
203 | |
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204 | static reqq req_queue; |
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205 | static reqq res_queue; |
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206 | |
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207 | int reqq_push (reqq *q, aio_req req) |
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208 | { |
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209 | int pri = req->pri; |
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210 | req->next = 0; |
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211 | |
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212 | if (q->qe[pri]) |
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213 | { |
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214 | q->qe[pri]->next = req; |
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215 | q->qe[pri] = req; |
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216 | } |
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217 | else |
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218 | q->qe[pri] = q->qs[pri] = req; |
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219 | |
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220 | return q->size++; |
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221 | } |
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222 | |
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223 | aio_req reqq_shift (reqq *q) |
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224 | { |
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225 | int pri; |
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226 | |
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227 | if (!q->size) |
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228 | return 0; |
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229 | |
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230 | --q->size; |
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231 | |
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232 | for (pri = NUM_PRI; pri--; ) |
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233 | { |
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234 | aio_req req = q->qs[pri]; |
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235 | |
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236 | if (req) |
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237 | { |
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238 | if (!(q->qs[pri] = req->next)) |
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239 | q->qe[pri] = 0; |
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240 | |
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241 | return req; |
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242 | } |
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243 | } |
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244 | |
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245 | abort (); |
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246 | } |
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247 | |
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248 | static int poll_cb (int max); |
132 | static void req_invoke (aio_req req); |
249 | static void req_invoke (aio_req req); |
133 | static void req_free (aio_req req); |
250 | static void req_free (aio_req req); |
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251 | static void req_cancel (aio_req req); |
134 | |
252 | |
135 | /* must be called at most once */ |
253 | /* must be called at most once */ |
136 | static SV *req_sv (aio_req req, const char *klass) |
254 | static SV *req_sv (aio_req req, const char *klass) |
137 | { |
255 | { |
138 | if (!req->self) |
256 | if (!req->self) |
… | |
… | |
169 | ENTER; |
287 | ENTER; |
170 | SAVETMPS; |
288 | SAVETMPS; |
171 | PUSHMARK (SP); |
289 | PUSHMARK (SP); |
172 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
290 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
173 | PUTBACK; |
291 | PUTBACK; |
174 | call_sv (grp->fh2, G_VOID | G_EVAL); |
292 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
175 | SPAGAIN; |
293 | SPAGAIN; |
176 | FREETMPS; |
294 | FREETMPS; |
177 | LEAVE; |
295 | LEAVE; |
178 | } |
296 | } |
179 | |
297 | |
… | |
… | |
206 | { |
324 | { |
207 | fd_set rfd; |
325 | fd_set rfd; |
208 | |
326 | |
209 | while (nreqs) |
327 | while (nreqs) |
210 | { |
328 | { |
211 | aio_req req; |
329 | int size; |
212 | pthread_mutex_lock (&reslock); |
330 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
213 | req = ress; |
331 | LOCK (reslock); |
214 | pthread_mutex_unlock (&reslock); |
332 | #endif |
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333 | size = res_queue.size; |
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334 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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335 | UNLOCK (reslock); |
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336 | #endif |
215 | |
337 | |
216 | if (req) |
338 | if (size) |
217 | return; |
339 | return; |
218 | |
340 | |
219 | FD_ZERO(&rfd); |
341 | FD_ZERO(&rfd); |
220 | FD_SET(respipe [0], &rfd); |
342 | FD_SET(respipe [0], &rfd); |
221 | |
343 | |
… | |
… | |
224 | } |
346 | } |
225 | |
347 | |
226 | static void req_invoke (aio_req req) |
348 | static void req_invoke (aio_req req) |
227 | { |
349 | { |
228 | dSP; |
350 | dSP; |
229 | int errorno = errno; |
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230 | |
351 | |
231 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
352 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
232 | return; |
353 | { |
233 | |
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234 | errno = req->errorno; |
354 | errno = req->errorno; |
235 | |
355 | |
236 | ENTER; |
356 | ENTER; |
237 | SAVETMPS; |
357 | SAVETMPS; |
238 | PUSHMARK (SP); |
358 | PUSHMARK (SP); |
239 | EXTEND (SP, 1); |
359 | EXTEND (SP, 1); |
240 | |
360 | |
241 | switch (req->type) |
361 | switch (req->type) |
242 | { |
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243 | case REQ_READDIR: |
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244 | { |
362 | { |
245 | SV *rv = &PL_sv_undef; |
363 | case REQ_READDIR: |
246 | |
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247 | if (req->result >= 0) |
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248 | { |
364 | { |
249 | char *buf = req->data2ptr; |
365 | SV *rv = &PL_sv_undef; |
250 | AV *av = newAV (); |
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251 | |
366 | |
252 | while (req->result) |
367 | if (req->result >= 0) |
253 | { |
368 | { |
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369 | int i; |
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370 | char *buf = req->data2ptr; |
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371 | AV *av = newAV (); |
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372 | |
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373 | av_extend (av, req->result - 1); |
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374 | |
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375 | for (i = 0; i < req->result; ++i) |
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376 | { |
254 | SV *sv = newSVpv (buf, 0); |
377 | SV *sv = newSVpv (buf, 0); |
255 | |
378 | |
256 | av_push (av, sv); |
379 | av_store (av, i, sv); |
257 | buf += SvCUR (sv) + 1; |
380 | buf += SvCUR (sv) + 1; |
258 | req->result--; |
381 | } |
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382 | |
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383 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
259 | } |
384 | } |
260 | |
385 | |
261 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
386 | PUSHs (rv); |
262 | } |
387 | } |
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388 | break; |
263 | |
389 | |
264 | PUSHs (rv); |
390 | case REQ_OPEN: |
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391 | { |
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392 | /* convert fd to fh */ |
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393 | SV *fh; |
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394 | |
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395 | PUSHs (sv_2mortal (newSViv (req->result))); |
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396 | PUTBACK; |
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397 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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398 | SPAGAIN; |
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399 | |
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400 | fh = SvREFCNT_inc (POPs); |
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401 | |
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402 | PUSHMARK (SP); |
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403 | XPUSHs (sv_2mortal (fh)); |
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404 | } |
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405 | break; |
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406 | |
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407 | case REQ_GROUP: |
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408 | req->fd = 2; /* mark group as finished */ |
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409 | |
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410 | if (req->data) |
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411 | { |
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412 | int i; |
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413 | AV *av = (AV *)req->data; |
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414 | |
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415 | EXTEND (SP, AvFILL (av) + 1); |
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416 | for (i = 0; i <= AvFILL (av); ++i) |
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417 | PUSHs (*av_fetch (av, i, 0)); |
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418 | } |
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419 | break; |
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420 | |
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421 | case REQ_NOP: |
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422 | case REQ_BUSY: |
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423 | break; |
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424 | |
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425 | default: |
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426 | PUSHs (sv_2mortal (newSViv (req->result))); |
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427 | break; |
265 | } |
428 | } |
266 | break; |
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267 | |
429 | |
268 | case REQ_OPEN: |
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269 | { |
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270 | /* convert fd to fh */ |
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271 | SV *fh; |
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272 | |
430 | |
273 | PUSHs (sv_2mortal (newSViv (req->result))); |
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274 | PUTBACK; |
431 | PUTBACK; |
275 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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276 | SPAGAIN; |
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277 | |
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278 | fh = SvREFCNT_inc (POPs); |
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279 | |
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280 | PUSHMARK (SP); |
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281 | XPUSHs (sv_2mortal (fh)); |
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282 | } |
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283 | break; |
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284 | |
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285 | case REQ_GROUP: |
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286 | req->fd = 2; /* mark group as finished */ |
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287 | |
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288 | if (req->data) |
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289 | { |
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290 | int i; |
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291 | AV *av = (AV *)req->data; |
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292 | |
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293 | EXTEND (SP, AvFILL (av) + 1); |
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294 | for (i = 0; i <= AvFILL (av); ++i) |
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295 | PUSHs (*av_fetch (av, i, 0)); |
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296 | } |
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297 | break; |
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298 | |
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299 | case REQ_NOP: |
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300 | case REQ_SLEEP: |
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301 | break; |
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302 | |
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303 | default: |
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304 | PUSHs (sv_2mortal (newSViv (req->result))); |
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305 | break; |
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306 | } |
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307 | |
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308 | |
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309 | PUTBACK; |
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310 | call_sv (req->callback, G_VOID | G_EVAL); |
432 | call_sv (req->callback, G_VOID | G_EVAL); |
311 | SPAGAIN; |
433 | SPAGAIN; |
312 | |
434 | |
313 | FREETMPS; |
435 | FREETMPS; |
314 | LEAVE; |
436 | LEAVE; |
315 | |
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316 | errno = errorno; |
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317 | |
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318 | if (SvTRUE (ERRSV)) |
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319 | { |
437 | } |
320 | req_free (req); |
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321 | croak (0); |
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322 | } |
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323 | } |
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324 | |
438 | |
325 | static void req_free (aio_req req) |
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326 | { |
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327 | if (req->grp) |
439 | if (req->grp) |
328 | { |
440 | { |
329 | aio_req grp = req->grp; |
441 | aio_req grp = req->grp; |
330 | |
442 | |
331 | /* unlink request */ |
443 | /* unlink request */ |
… | |
… | |
336 | grp->grp_first = req->grp_next; |
448 | grp->grp_first = req->grp_next; |
337 | |
449 | |
338 | aio_grp_dec (grp); |
450 | aio_grp_dec (grp); |
339 | } |
451 | } |
340 | |
452 | |
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453 | if (SvTRUE (ERRSV)) |
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454 | { |
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455 | req_free (req); |
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456 | croak (0); |
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457 | } |
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458 | } |
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459 | |
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460 | static void req_free (aio_req req) |
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461 | { |
341 | if (req->self) |
462 | if (req->self) |
342 | { |
463 | { |
343 | sv_unmagic (req->self, PERL_MAGIC_ext); |
464 | sv_unmagic (req->self, PERL_MAGIC_ext); |
344 | SvREFCNT_dec (req->self); |
465 | SvREFCNT_dec (req->self); |
345 | } |
466 | } |
… | |
… | |
348 | SvREFCNT_dec (req->fh); |
469 | SvREFCNT_dec (req->fh); |
349 | SvREFCNT_dec (req->fh2); |
470 | SvREFCNT_dec (req->fh2); |
350 | SvREFCNT_dec (req->callback); |
471 | SvREFCNT_dec (req->callback); |
351 | Safefree (req->statdata); |
472 | Safefree (req->statdata); |
352 | |
473 | |
353 | if (req->type == REQ_READDIR && req->result >= 0) |
474 | if (req->type == REQ_READDIR) |
354 | free (req->data2ptr); |
475 | free (req->data2ptr); |
355 | |
476 | |
356 | Safefree (req); |
477 | Safefree (req); |
357 | } |
478 | } |
358 | |
479 | |
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480 | static void req_cancel_subs (aio_req grp) |
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481 | { |
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482 | aio_req sub; |
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483 | |
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484 | if (grp->type != REQ_GROUP) |
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485 | return; |
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486 | |
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487 | SvREFCNT_dec (grp->fh2); |
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488 | grp->fh2 = 0; |
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489 | |
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490 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
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491 | req_cancel (sub); |
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492 | } |
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493 | |
359 | static void req_cancel (aio_req req) |
494 | static void req_cancel (aio_req req) |
360 | { |
495 | { |
361 | req->flags |= FLAG_CANCELLED; |
496 | req->flags |= FLAG_CANCELLED; |
362 | |
497 | |
363 | if (req->type == REQ_GROUP) |
498 | req_cancel_subs (req); |
364 | { |
|
|
365 | aio_req sub; |
|
|
366 | |
|
|
367 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
|
|
368 | req_cancel (sub); |
|
|
369 | } |
|
|
370 | } |
499 | } |
371 | |
500 | |
372 | static int poll_cb () |
501 | static int poll_cb (int max) |
373 | { |
502 | { |
374 | dSP; |
503 | dSP; |
375 | int count = 0; |
504 | int count = 0; |
376 | int do_croak = 0; |
505 | int do_croak = 0; |
377 | aio_req req; |
506 | aio_req req; |
378 | |
507 | |
379 | for (;;) |
508 | while (max <= 0 || count < max) |
380 | { |
509 | { |
381 | pthread_mutex_lock (&reslock); |
510 | LOCK (reslock); |
382 | req = ress; |
511 | req = reqq_shift (&res_queue); |
383 | |
512 | |
384 | if (req) |
513 | if (req) |
385 | { |
514 | { |
386 | ress = req->next; |
|
|
387 | |
|
|
388 | if (!ress) |
515 | if (!res_queue.size) |
389 | { |
516 | { |
390 | /* read any signals sent by the worker threads */ |
517 | /* read any signals sent by the worker threads */ |
391 | char buf [32]; |
518 | char buf [32]; |
392 | while (read (respipe [0], buf, 32) == 32) |
519 | while (read (respipe [0], buf, 32) == 32) |
393 | ; |
520 | ; |
394 | |
|
|
395 | rese = 0; |
|
|
396 | } |
521 | } |
397 | } |
522 | } |
398 | |
523 | |
399 | pthread_mutex_unlock (&reslock); |
524 | UNLOCK (reslock); |
400 | |
525 | |
401 | if (!req) |
526 | if (!req) |
402 | break; |
527 | break; |
403 | |
528 | |
404 | --nreqs; |
529 | --nreqs; |
… | |
… | |
439 | static void *aio_proc(void *arg); |
564 | static void *aio_proc(void *arg); |
440 | |
565 | |
441 | static void start_thread (void) |
566 | static void start_thread (void) |
442 | { |
567 | { |
443 | sigset_t fullsigset, oldsigset; |
568 | sigset_t fullsigset, oldsigset; |
444 | pthread_t tid; |
|
|
445 | pthread_attr_t attr; |
569 | pthread_attr_t attr; |
|
|
570 | |
|
|
571 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
572 | |
|
|
573 | if (!wrk) |
|
|
574 | croak ("unable to allocate worker thread data"); |
446 | |
575 | |
447 | pthread_attr_init (&attr); |
576 | pthread_attr_init (&attr); |
448 | pthread_attr_setstacksize (&attr, STACKSIZE); |
577 | pthread_attr_setstacksize (&attr, STACKSIZE); |
449 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
578 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
450 | |
579 | |
451 | sigfillset (&fullsigset); |
580 | sigfillset (&fullsigset); |
|
|
581 | |
|
|
582 | LOCK (wrklock); |
452 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
583 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
453 | |
584 | |
454 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
585 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
586 | { |
|
|
587 | wrk->prev = &wrk_first; |
|
|
588 | wrk->next = wrk_first.next; |
|
|
589 | wrk_first.next->prev = wrk; |
|
|
590 | wrk_first.next = wrk; |
455 | started++; |
591 | started++; |
|
|
592 | } |
|
|
593 | else |
|
|
594 | free (wrk); |
456 | |
595 | |
457 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
596 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
597 | UNLOCK (wrklock); |
458 | } |
598 | } |
459 | |
599 | |
460 | static void req_send (aio_req req) |
600 | static void req_send (aio_req req) |
461 | { |
601 | { |
462 | while (started < wanted && nreqs >= started) |
602 | while (started < wanted && nreqs >= started) |
463 | start_thread (); |
603 | start_thread (); |
464 | |
604 | |
465 | ++nreqs; |
605 | ++nreqs; |
466 | |
606 | |
467 | pthread_mutex_lock (&reqlock); |
607 | LOCK (reqlock); |
468 | |
608 | reqq_push (&req_queue, req); |
469 | req->next = 0; |
|
|
470 | |
|
|
471 | if (reqe) |
|
|
472 | { |
|
|
473 | reqe->next = req; |
|
|
474 | reqe = req; |
|
|
475 | } |
|
|
476 | else |
|
|
477 | reqe = reqs = req; |
|
|
478 | |
|
|
479 | pthread_cond_signal (&reqwait); |
609 | pthread_cond_signal (&reqwait); |
480 | pthread_mutex_unlock (&reqlock); |
610 | UNLOCK (reqlock); |
481 | |
|
|
482 | if (nreqs > max_outstanding) |
|
|
483 | for (;;) |
|
|
484 | { |
|
|
485 | poll_cb (); |
|
|
486 | |
|
|
487 | if (nreqs <= max_outstanding) |
|
|
488 | break; |
|
|
489 | |
|
|
490 | poll_wait (); |
|
|
491 | } |
|
|
492 | } |
611 | } |
493 | |
612 | |
494 | static void end_thread (void) |
613 | static void end_thread (void) |
495 | { |
614 | { |
496 | aio_req req; |
615 | aio_req req; |
|
|
616 | |
497 | Newz (0, req, 1, aio_cb); |
617 | Newz (0, req, 1, aio_cb); |
|
|
618 | |
498 | req->type = REQ_QUIT; |
619 | req->type = REQ_QUIT; |
|
|
620 | req->pri = PRI_MAX + PRI_BIAS; |
499 | |
621 | |
500 | req_send (req); |
622 | req_send (req); |
501 | } |
623 | } |
502 | |
624 | |
503 | static void min_parallel (int nthreads) |
625 | static void min_parallel (int nthreads) |
… | |
… | |
520 | } |
642 | } |
521 | |
643 | |
522 | while (started > wanted) |
644 | while (started > wanted) |
523 | { |
645 | { |
524 | poll_wait (); |
646 | poll_wait (); |
525 | poll_cb (); |
647 | poll_cb (0); |
526 | } |
648 | } |
527 | } |
649 | } |
528 | |
650 | |
529 | static void create_pipe () |
651 | static void create_pipe () |
530 | { |
652 | { |
… | |
… | |
555 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
677 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
556 | { |
678 | { |
557 | ssize_t res; |
679 | ssize_t res; |
558 | off_t ooffset; |
680 | off_t ooffset; |
559 | |
681 | |
560 | pthread_mutex_lock (&preadwritelock); |
682 | LOCK (preadwritelock); |
561 | ooffset = lseek (fd, 0, SEEK_CUR); |
683 | ooffset = lseek (fd, 0, SEEK_CUR); |
562 | lseek (fd, offset, SEEK_SET); |
684 | lseek (fd, offset, SEEK_SET); |
563 | res = read (fd, buf, count); |
685 | res = read (fd, buf, count); |
564 | lseek (fd, ooffset, SEEK_SET); |
686 | lseek (fd, ooffset, SEEK_SET); |
565 | pthread_mutex_unlock (&preadwritelock); |
687 | UNLOCK (preadwritelock); |
566 | |
688 | |
567 | return res; |
689 | return res; |
568 | } |
690 | } |
569 | |
691 | |
570 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
692 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
571 | { |
693 | { |
572 | ssize_t res; |
694 | ssize_t res; |
573 | off_t ooffset; |
695 | off_t ooffset; |
574 | |
696 | |
575 | pthread_mutex_lock (&preadwritelock); |
697 | LOCK (preadwritelock); |
576 | ooffset = lseek (fd, 0, SEEK_CUR); |
698 | ooffset = lseek (fd, 0, SEEK_CUR); |
577 | lseek (fd, offset, SEEK_SET); |
699 | lseek (fd, offset, SEEK_SET); |
578 | res = write (fd, buf, count); |
700 | res = write (fd, buf, count); |
579 | lseek (fd, offset, SEEK_SET); |
701 | lseek (fd, offset, SEEK_SET); |
580 | pthread_mutex_unlock (&preadwritelock); |
702 | UNLOCK (preadwritelock); |
581 | |
703 | |
582 | return res; |
704 | return res; |
583 | } |
705 | } |
584 | #endif |
706 | #endif |
585 | |
707 | |
586 | #if !HAVE_FDATASYNC |
708 | #if !HAVE_FDATASYNC |
587 | # define fdatasync fsync |
709 | # define fdatasync fsync |
588 | #endif |
710 | #endif |
589 | |
711 | |
590 | #if !HAVE_READAHEAD |
712 | #if !HAVE_READAHEAD |
591 | # define readahead aio_readahead |
713 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
592 | |
714 | |
593 | static ssize_t readahead (int fd, off_t offset, size_t count) |
715 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
594 | { |
716 | { |
595 | char readahead_buf[4096]; |
717 | dBUF; |
596 | |
718 | |
597 | while (count > 0) |
719 | while (count > 0) |
598 | { |
720 | { |
599 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
721 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
600 | |
722 | |
601 | pread (fd, readahead_buf, len, offset); |
723 | pread (fd, aio_buf, len, offset); |
602 | offset += len; |
724 | offset += len; |
603 | count -= len; |
725 | count -= len; |
604 | } |
726 | } |
605 | |
727 | |
606 | errno = 0; |
728 | errno = 0; |
607 | } |
729 | } |
|
|
730 | |
608 | #endif |
731 | #endif |
609 | |
732 | |
610 | #if !HAVE_READDIR_R |
733 | #if !HAVE_READDIR_R |
611 | # define readdir_r aio_readdir_r |
734 | # define readdir_r aio_readdir_r |
612 | |
735 | |
… | |
… | |
615 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
738 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
616 | { |
739 | { |
617 | struct dirent *e; |
740 | struct dirent *e; |
618 | int errorno; |
741 | int errorno; |
619 | |
742 | |
620 | pthread_mutex_lock (&readdirlock); |
743 | LOCK (readdirlock); |
621 | |
744 | |
622 | e = readdir (dirp); |
745 | e = readdir (dirp); |
623 | errorno = errno; |
746 | errorno = errno; |
624 | |
747 | |
625 | if (e) |
748 | if (e) |
… | |
… | |
628 | strcpy (ent->d_name, e->d_name); |
751 | strcpy (ent->d_name, e->d_name); |
629 | } |
752 | } |
630 | else |
753 | else |
631 | *res = 0; |
754 | *res = 0; |
632 | |
755 | |
633 | pthread_mutex_unlock (&readdirlock); |
756 | UNLOCK (readdirlock); |
634 | |
757 | |
635 | errno = errorno; |
758 | errno = errorno; |
636 | return e ? 0 : -1; |
759 | return e ? 0 : -1; |
637 | } |
760 | } |
638 | #endif |
761 | #endif |
639 | |
762 | |
640 | /* sendfile always needs emulation */ |
763 | /* sendfile always needs emulation */ |
641 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
764 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
642 | { |
765 | { |
643 | ssize_t res; |
766 | ssize_t res; |
644 | |
767 | |
645 | if (!count) |
768 | if (!count) |
646 | return 0; |
769 | return 0; |
… | |
… | |
695 | #endif |
818 | #endif |
696 | ) |
819 | ) |
697 | ) |
820 | ) |
698 | { |
821 | { |
699 | /* emulate sendfile. this is a major pain in the ass */ |
822 | /* emulate sendfile. this is a major pain in the ass */ |
700 | char buf[4096]; |
823 | dBUF; |
|
|
824 | |
701 | res = 0; |
825 | res = 0; |
702 | |
826 | |
703 | while (count) |
827 | while (count) |
704 | { |
828 | { |
705 | ssize_t cnt; |
829 | ssize_t cnt; |
706 | |
830 | |
707 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
831 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
708 | |
832 | |
709 | if (cnt <= 0) |
833 | if (cnt <= 0) |
710 | { |
834 | { |
711 | if (cnt && !res) res = -1; |
835 | if (cnt && !res) res = -1; |
712 | break; |
836 | break; |
713 | } |
837 | } |
714 | |
838 | |
715 | cnt = write (ofd, buf, cnt); |
839 | cnt = write (ofd, aio_buf, cnt); |
716 | |
840 | |
717 | if (cnt <= 0) |
841 | if (cnt <= 0) |
718 | { |
842 | { |
719 | if (cnt && !res) res = -1; |
843 | if (cnt && !res) res = -1; |
720 | break; |
844 | break; |
… | |
… | |
728 | |
852 | |
729 | return res; |
853 | return res; |
730 | } |
854 | } |
731 | |
855 | |
732 | /* read a full directory */ |
856 | /* read a full directory */ |
733 | static int scandir_ (const char *path, void **namesp) |
857 | static void scandir_ (aio_req req, worker *self) |
734 | { |
858 | { |
735 | DIR *dirp = opendir (path); |
859 | DIR *dirp; |
736 | union |
860 | union |
737 | { |
861 | { |
738 | struct dirent d; |
862 | struct dirent d; |
739 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
863 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
740 | } u; |
864 | } *u; |
741 | struct dirent *entp; |
865 | struct dirent *entp; |
742 | char *name, *names; |
866 | char *name, *names; |
743 | int memlen = 4096; |
867 | int memlen = 4096; |
744 | int memofs = 0; |
868 | int memofs = 0; |
745 | int res = 0; |
869 | int res = 0; |
746 | int errorno; |
870 | int errorno; |
747 | |
871 | |
748 | if (!dirp) |
872 | LOCK (wrklock); |
749 | return -1; |
873 | self->dirp = dirp = opendir (req->dataptr); |
750 | |
874 | self->dbuf = u = malloc (sizeof (*u)); |
751 | names = malloc (memlen); |
875 | req->data2ptr = names = malloc (memlen); |
|
|
876 | UNLOCK (wrklock); |
752 | |
877 | |
|
|
878 | if (dirp && u && names) |
753 | for (;;) |
879 | for (;;) |
754 | { |
880 | { |
|
|
881 | errno = 0; |
755 | errno = 0, readdir_r (dirp, &u.d, &entp); |
882 | readdir_r (dirp, &u->d, &entp); |
756 | |
883 | |
757 | if (!entp) |
884 | if (!entp) |
758 | break; |
885 | break; |
759 | |
886 | |
760 | name = entp->d_name; |
887 | name = entp->d_name; |
761 | |
888 | |
762 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
889 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
763 | { |
890 | { |
764 | int len = strlen (name) + 1; |
891 | int len = strlen (name) + 1; |
765 | |
892 | |
766 | res++; |
893 | res++; |
767 | |
894 | |
768 | while (memofs + len > memlen) |
895 | while (memofs + len > memlen) |
769 | { |
896 | { |
770 | memlen *= 2; |
897 | memlen *= 2; |
|
|
898 | LOCK (wrklock); |
771 | names = realloc (names, memlen); |
899 | req->data2ptr = names = realloc (names, memlen); |
|
|
900 | UNLOCK (wrklock); |
|
|
901 | |
772 | if (!names) |
902 | if (!names) |
773 | break; |
903 | break; |
774 | } |
904 | } |
775 | |
905 | |
776 | memcpy (names + memofs, name, len); |
906 | memcpy (names + memofs, name, len); |
777 | memofs += len; |
907 | memofs += len; |
778 | } |
908 | } |
779 | } |
909 | } |
780 | |
910 | |
781 | errorno = errno; |
|
|
782 | closedir (dirp); |
|
|
783 | |
|
|
784 | if (errorno) |
911 | if (errno) |
785 | { |
|
|
786 | free (names); |
|
|
787 | errno = errorno; |
|
|
788 | res = -1; |
912 | res = -1; |
789 | } |
913 | |
790 | |
914 | req->result = res; |
791 | *namesp = (void *)names; |
|
|
792 | return res; |
|
|
793 | } |
915 | } |
794 | |
916 | |
795 | /*****************************************************************************/ |
917 | /*****************************************************************************/ |
796 | |
918 | |
797 | static void *aio_proc (void *thr_arg) |
919 | static void *aio_proc (void *thr_arg) |
798 | { |
920 | { |
799 | aio_req req; |
921 | aio_req req; |
800 | int type; |
922 | int type; |
|
|
923 | worker *self = (worker *)thr_arg; |
801 | |
924 | |
802 | do |
925 | do |
803 | { |
926 | { |
804 | pthread_mutex_lock (&reqlock); |
927 | LOCK (reqlock); |
805 | |
928 | |
806 | for (;;) |
929 | for (;;) |
807 | { |
930 | { |
808 | req = reqs; |
931 | self->req = req = reqq_shift (&req_queue); |
809 | |
|
|
810 | if (reqs) |
|
|
811 | { |
|
|
812 | reqs = reqs->next; |
|
|
813 | if (!reqs) reqe = 0; |
|
|
814 | } |
|
|
815 | |
932 | |
816 | if (req) |
933 | if (req) |
817 | break; |
934 | break; |
818 | |
935 | |
819 | pthread_cond_wait (&reqwait, &reqlock); |
936 | pthread_cond_wait (&reqwait, &reqlock); |
820 | } |
937 | } |
821 | |
938 | |
822 | pthread_mutex_unlock (&reqlock); |
939 | UNLOCK (reqlock); |
823 | |
940 | |
824 | errno = 0; /* strictly unnecessary */ |
941 | errno = 0; /* strictly unnecessary */ |
825 | type = req->type; /* remember type for QUIT check */ |
942 | type = req->type; /* remember type for QUIT check */ |
826 | |
943 | |
827 | if (!(req->flags & FLAG_CANCELLED)) |
944 | if (!(req->flags & FLAG_CANCELLED)) |
… | |
… | |
829 | { |
946 | { |
830 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
947 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
831 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
948 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
832 | |
949 | |
833 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
950 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
834 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
951 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
835 | |
952 | |
836 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
953 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
837 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
954 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
838 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
955 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
839 | |
956 | |
… | |
… | |
845 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
962 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
846 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
963 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
847 | |
964 | |
848 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
965 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
849 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
966 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
850 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
967 | case REQ_READDIR: scandir_ (req, self); break; |
851 | |
968 | |
852 | case REQ_SLEEP: |
969 | case REQ_BUSY: |
853 | { |
970 | { |
854 | struct timeval tv; |
971 | struct timeval tv; |
855 | |
972 | |
856 | tv.tv_sec = req->fd; |
973 | tv.tv_sec = req->fd; |
857 | tv.tv_usec = req->fd2; |
974 | tv.tv_usec = req->fd2; |
… | |
… | |
869 | break; |
986 | break; |
870 | } |
987 | } |
871 | |
988 | |
872 | req->errorno = errno; |
989 | req->errorno = errno; |
873 | |
990 | |
874 | pthread_mutex_lock (&reslock); |
991 | LOCK (reslock); |
875 | |
992 | |
876 | req->next = 0; |
993 | if (!reqq_push (&res_queue, req)) |
877 | |
|
|
878 | if (rese) |
|
|
879 | { |
|
|
880 | rese->next = req; |
|
|
881 | rese = req; |
|
|
882 | } |
|
|
883 | else |
|
|
884 | { |
|
|
885 | rese = ress = req; |
|
|
886 | |
|
|
887 | /* write a dummy byte to the pipe so fh becomes ready */ |
994 | /* write a dummy byte to the pipe so fh becomes ready */ |
888 | write (respipe [1], &respipe, 1); |
995 | write (respipe [1], &respipe, 1); |
889 | } |
|
|
890 | |
996 | |
891 | pthread_mutex_unlock (&reslock); |
997 | self->req = 0; |
|
|
998 | worker_clear (self); |
|
|
999 | |
|
|
1000 | UNLOCK (reslock); |
892 | } |
1001 | } |
893 | while (type != REQ_QUIT); |
1002 | while (type != REQ_QUIT); |
894 | |
1003 | |
|
|
1004 | LOCK (wrklock); |
|
|
1005 | worker_free (self); |
|
|
1006 | UNLOCK (wrklock); |
|
|
1007 | |
895 | return 0; |
1008 | return 0; |
896 | } |
1009 | } |
897 | |
1010 | |
898 | /*****************************************************************************/ |
1011 | /*****************************************************************************/ |
899 | |
1012 | |
900 | static void atfork_prepare (void) |
1013 | static void atfork_prepare (void) |
901 | { |
1014 | { |
902 | pthread_mutex_lock (&reqlock); |
1015 | LOCK (wrklock); |
903 | pthread_mutex_lock (&reslock); |
1016 | LOCK (reqlock); |
|
|
1017 | LOCK (reslock); |
904 | #if !HAVE_PREADWRITE |
1018 | #if !HAVE_PREADWRITE |
905 | pthread_mutex_lock (&preadwritelock); |
1019 | LOCK (preadwritelock); |
906 | #endif |
1020 | #endif |
907 | #if !HAVE_READDIR_R |
1021 | #if !HAVE_READDIR_R |
908 | pthread_mutex_lock (&readdirlock); |
1022 | LOCK (readdirlock); |
909 | #endif |
1023 | #endif |
910 | } |
1024 | } |
911 | |
1025 | |
912 | static void atfork_parent (void) |
1026 | static void atfork_parent (void) |
913 | { |
1027 | { |
914 | #if !HAVE_READDIR_R |
1028 | #if !HAVE_READDIR_R |
915 | pthread_mutex_unlock (&readdirlock); |
1029 | UNLOCK (readdirlock); |
916 | #endif |
1030 | #endif |
917 | #if !HAVE_PREADWRITE |
1031 | #if !HAVE_PREADWRITE |
918 | pthread_mutex_unlock (&preadwritelock); |
1032 | UNLOCK (preadwritelock); |
919 | #endif |
1033 | #endif |
920 | pthread_mutex_unlock (&reslock); |
1034 | UNLOCK (reslock); |
921 | pthread_mutex_unlock (&reqlock); |
1035 | UNLOCK (reqlock); |
|
|
1036 | UNLOCK (wrklock); |
922 | } |
1037 | } |
923 | |
1038 | |
924 | static void atfork_child (void) |
1039 | static void atfork_child (void) |
925 | { |
1040 | { |
926 | aio_req prv; |
1041 | aio_req prv; |
927 | |
1042 | |
|
|
1043 | while (prv = reqq_shift (&req_queue)) |
|
|
1044 | req_free (prv); |
|
|
1045 | |
|
|
1046 | while (prv = reqq_shift (&res_queue)) |
|
|
1047 | req_free (prv); |
|
|
1048 | |
|
|
1049 | while (wrk_first.next != &wrk_first) |
|
|
1050 | { |
|
|
1051 | worker *wrk = wrk_first.next; |
|
|
1052 | |
|
|
1053 | if (wrk->req) |
|
|
1054 | req_free (wrk->req); |
|
|
1055 | |
|
|
1056 | worker_clear (wrk); |
|
|
1057 | worker_free (wrk); |
|
|
1058 | } |
|
|
1059 | |
928 | started = 0; |
1060 | started = 0; |
929 | |
1061 | nreqs = 0; |
930 | while (reqs) |
|
|
931 | { |
|
|
932 | prv = reqs; |
|
|
933 | reqs = prv->next; |
|
|
934 | req_free (prv); |
|
|
935 | } |
|
|
936 | |
|
|
937 | reqs = reqe = 0; |
|
|
938 | |
|
|
939 | while (ress) |
|
|
940 | { |
|
|
941 | prv = ress; |
|
|
942 | ress = prv->next; |
|
|
943 | req_free (prv); |
|
|
944 | } |
|
|
945 | |
|
|
946 | ress = rese = 0; |
|
|
947 | |
1062 | |
948 | close (respipe [0]); |
1063 | close (respipe [0]); |
949 | close (respipe [1]); |
1064 | close (respipe [1]); |
950 | create_pipe (); |
1065 | create_pipe (); |
951 | |
1066 | |
… | |
… | |
996 | void |
1111 | void |
997 | max_parallel (nthreads) |
1112 | max_parallel (nthreads) |
998 | int nthreads |
1113 | int nthreads |
999 | PROTOTYPE: $ |
1114 | PROTOTYPE: $ |
1000 | |
1115 | |
1001 | int |
|
|
1002 | max_outstanding (nreqs) |
|
|
1003 | int nreqs |
|
|
1004 | PROTOTYPE: $ |
|
|
1005 | CODE: |
|
|
1006 | RETVAL = max_outstanding; |
|
|
1007 | max_outstanding = nreqs; |
|
|
1008 | |
|
|
1009 | void |
1116 | void |
1010 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1117 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1011 | SV * pathname |
1118 | SV * pathname |
1012 | int flags |
1119 | int flags |
1013 | int mode |
1120 | int mode |
… | |
… | |
1227 | |
1334 | |
1228 | REQ_SEND; |
1335 | REQ_SEND; |
1229 | } |
1336 | } |
1230 | |
1337 | |
1231 | void |
1338 | void |
1232 | aio_sleep (delay,callback=&PL_sv_undef) |
1339 | aio_busy (delay,callback=&PL_sv_undef) |
1233 | double delay |
1340 | double delay |
1234 | SV * callback |
1341 | SV * callback |
1235 | PPCODE: |
1342 | PPCODE: |
1236 | { |
1343 | { |
1237 | dREQ; |
1344 | dREQ; |
1238 | |
1345 | |
1239 | req->type = REQ_SLEEP; |
1346 | req->type = REQ_BUSY; |
1240 | req->fd = delay < 0. ? 0 : delay; |
1347 | req->fd = delay < 0. ? 0 : delay; |
1241 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1348 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1242 | |
1349 | |
1243 | REQ_SEND; |
1350 | REQ_SEND; |
1244 | } |
1351 | } |
… | |
… | |
1267 | req->type = REQ_NOP; |
1374 | req->type = REQ_NOP; |
1268 | |
1375 | |
1269 | REQ_SEND; |
1376 | REQ_SEND; |
1270 | } |
1377 | } |
1271 | |
1378 | |
1272 | #if 0 |
|
|
1273 | |
|
|
1274 | void |
1379 | void |
1275 | aio_pri (int pri = DEFAULT_PRI) |
1380 | aioreq_pri (int pri = DEFAULT_PRI) |
1276 | CODE: |
1381 | CODE: |
1277 | if (pri < PRI_MIN) pri = PRI_MIN; |
1382 | if (pri < PRI_MIN) pri = PRI_MIN; |
1278 | if (pri > PRI_MAX) pri = PRI_MAX; |
1383 | if (pri > PRI_MAX) pri = PRI_MAX; |
1279 | next_pri = pri + PRI_BIAS; |
1384 | next_pri = pri + PRI_BIAS; |
1280 | |
1385 | |
1281 | #endif |
1386 | void |
|
|
1387 | aioreq_nice (int nice = 0) |
|
|
1388 | CODE: |
|
|
1389 | nice = next_pri - nice; |
|
|
1390 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1391 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1392 | next_pri = nice + PRI_BIAS; |
1282 | |
1393 | |
1283 | void |
1394 | void |
1284 | flush () |
1395 | flush () |
1285 | PROTOTYPE: |
1396 | PROTOTYPE: |
1286 | CODE: |
1397 | CODE: |
1287 | while (nreqs) |
1398 | while (nreqs) |
1288 | { |
1399 | { |
1289 | poll_wait (); |
1400 | poll_wait (); |
1290 | poll_cb (); |
1401 | poll_cb (0); |
1291 | } |
1402 | } |
1292 | |
1403 | |
1293 | void |
1404 | void |
1294 | poll() |
1405 | poll() |
1295 | PROTOTYPE: |
1406 | PROTOTYPE: |
1296 | CODE: |
1407 | CODE: |
1297 | if (nreqs) |
1408 | if (nreqs) |
1298 | { |
1409 | { |
1299 | poll_wait (); |
1410 | poll_wait (); |
1300 | poll_cb (); |
1411 | poll_cb (0); |
1301 | } |
1412 | } |
1302 | |
1413 | |
1303 | int |
1414 | int |
1304 | poll_fileno() |
1415 | poll_fileno() |
1305 | PROTOTYPE: |
1416 | PROTOTYPE: |
… | |
… | |
1310 | |
1421 | |
1311 | int |
1422 | int |
1312 | poll_cb(...) |
1423 | poll_cb(...) |
1313 | PROTOTYPE: |
1424 | PROTOTYPE: |
1314 | CODE: |
1425 | CODE: |
1315 | RETVAL = poll_cb (); |
1426 | RETVAL = poll_cb (0); |
|
|
1427 | OUTPUT: |
|
|
1428 | RETVAL |
|
|
1429 | |
|
|
1430 | int |
|
|
1431 | poll_some(int max = 0) |
|
|
1432 | PROTOTYPE: $ |
|
|
1433 | CODE: |
|
|
1434 | RETVAL = poll_cb (max); |
1316 | OUTPUT: |
1435 | OUTPUT: |
1317 | RETVAL |
1436 | RETVAL |
1318 | |
1437 | |
1319 | void |
1438 | void |
1320 | poll_wait() |
1439 | poll_wait() |
… | |
… | |
1335 | |
1454 | |
1336 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1455 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1337 | |
1456 | |
1338 | void |
1457 | void |
1339 | cancel (aio_req_ornot req) |
1458 | cancel (aio_req_ornot req) |
1340 | PROTOTYPE: |
|
|
1341 | CODE: |
1459 | CODE: |
1342 | req_cancel (req); |
1460 | req_cancel (req); |
1343 | |
1461 | |
1344 | void |
1462 | void |
1345 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1463 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
… | |
… | |
1381 | } |
1499 | } |
1382 | } |
1500 | } |
1383 | } |
1501 | } |
1384 | |
1502 | |
1385 | void |
1503 | void |
|
|
1504 | cancel_subs (aio_req_ornot req) |
|
|
1505 | CODE: |
|
|
1506 | req_cancel_subs (req); |
|
|
1507 | |
|
|
1508 | void |
1386 | result (aio_req grp, ...) |
1509 | result (aio_req grp, ...) |
1387 | CODE: |
1510 | CODE: |
1388 | { |
1511 | { |
1389 | int i; |
1512 | int i; |
1390 | AV *av = newAV (); |
1513 | AV *av = newAV (); |
… | |
… | |
1395 | SvREFCNT_dec (grp->data); |
1518 | SvREFCNT_dec (grp->data); |
1396 | grp->data = (SV *)av; |
1519 | grp->data = (SV *)av; |
1397 | } |
1520 | } |
1398 | |
1521 | |
1399 | void |
1522 | void |
1400 | feed_limit (aio_req grp, int limit) |
1523 | limit (aio_req grp, int limit) |
1401 | CODE: |
1524 | CODE: |
1402 | grp->fd2 = limit; |
1525 | grp->fd2 = limit; |
1403 | aio_grp_feed (grp); |
1526 | aio_grp_feed (grp); |
1404 | |
1527 | |
1405 | void |
1528 | void |