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1 | /* solaris */ |
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2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
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4 | #if __linux |
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5 | # define _GNU_SOURCE |
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6 | #endif |
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7 | |
1 | #define _REENTRANT 1 |
8 | #define _REENTRANT 1 |
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9 | |
2 | #include <errno.h> |
10 | #include <errno.h> |
3 | |
11 | |
4 | #include "EXTERN.h" |
12 | #include "EXTERN.h" |
5 | #include "perl.h" |
13 | #include "perl.h" |
6 | #include "XSUB.h" |
14 | #include "XSUB.h" |
… | |
… | |
39 | /* used for struct dirent, AIX doesn't provide it */ |
47 | /* used for struct dirent, AIX doesn't provide it */ |
40 | #ifndef NAME_MAX |
48 | #ifndef NAME_MAX |
41 | # define NAME_MAX 4096 |
49 | # define NAME_MAX 4096 |
42 | #endif |
50 | #endif |
43 | |
51 | |
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52 | #ifndef PTHREAD_STACK_MIN |
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53 | /* care for broken platforms, e.g. windows */ |
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54 | # define PTHREAD_STACK_MIN 16384 |
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55 | #endif |
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56 | |
44 | #if __ia64 |
57 | #if __ia64 |
45 | # define STACKSIZE 65536 |
58 | # define STACKSIZE 65536 |
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59 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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60 | # define STACKSIZE PTHREAD_STACK_MIN |
46 | #else |
61 | #else |
47 | # define STACKSIZE 8192 |
62 | # define STACKSIZE 16384 |
48 | #endif |
63 | #endif |
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64 | |
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65 | /* buffer size for various temporary buffers */ |
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66 | #define AIO_BUFSIZE 65536 |
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67 | |
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68 | #define dBUF \ |
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69 | char *aio_buf; \ |
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70 | LOCK (wrklock); \ |
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71 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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72 | UNLOCK (wrklock); \ |
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73 | if (!aio_buf) \ |
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74 | return -1; |
49 | |
75 | |
50 | enum { |
76 | enum { |
51 | REQ_QUIT, |
77 | REQ_QUIT, |
52 | REQ_OPEN, REQ_CLOSE, |
78 | REQ_OPEN, REQ_CLOSE, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
79 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
… | |
… | |
56 | REQ_FSYNC, REQ_FDATASYNC, |
82 | REQ_FSYNC, REQ_FDATASYNC, |
57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
83 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
58 | REQ_READDIR, |
84 | REQ_READDIR, |
59 | REQ_LINK, REQ_SYMLINK, |
85 | REQ_LINK, REQ_SYMLINK, |
60 | REQ_GROUP, REQ_NOP, |
86 | REQ_GROUP, REQ_NOP, |
61 | REQ_SLEEP, |
87 | REQ_BUSY, |
62 | }; |
88 | }; |
63 | |
89 | |
64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
90 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
91 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
66 | |
92 | |
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100 | PRI_MIN = -4, |
126 | PRI_MIN = -4, |
101 | PRI_MAX = 4, |
127 | PRI_MAX = 4, |
102 | |
128 | |
103 | DEFAULT_PRI = 0, |
129 | DEFAULT_PRI = 0, |
104 | PRI_BIAS = -PRI_MIN, |
130 | PRI_BIAS = -PRI_MIN, |
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131 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
105 | }; |
132 | }; |
106 | |
133 | |
107 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
134 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
108 | |
135 | |
109 | static int started, wanted; |
136 | static int started, wanted; |
110 | static volatile int nreqs; |
137 | static volatile int nreqs; |
111 | static int max_outstanding = 1<<30; |
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112 | static int respipe [2]; |
138 | static int respipe [2]; |
113 | |
139 | |
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140 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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141 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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142 | #else |
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143 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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144 | #endif |
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145 | |
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146 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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147 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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148 | |
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149 | /* worker threasd management */ |
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150 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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151 | |
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152 | typedef struct worker { |
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153 | /* locked by wrklock */ |
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154 | struct worker *prev, *next; |
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155 | |
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156 | pthread_t tid; |
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157 | |
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158 | /* locked by reslock, reqlock or wrklock */ |
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159 | aio_req req; /* currently processed request */ |
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160 | void *dbuf; |
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161 | DIR *dirp; |
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162 | } worker; |
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163 | |
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164 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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165 | |
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166 | static void worker_clear (worker *wrk) |
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167 | { |
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168 | if (wrk->dirp) |
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169 | { |
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170 | closedir (wrk->dirp); |
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171 | wrk->dirp = 0; |
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172 | } |
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173 | |
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174 | if (wrk->dbuf) |
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175 | { |
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176 | free (wrk->dbuf); |
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177 | wrk->dbuf = 0; |
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178 | } |
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179 | } |
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180 | |
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181 | static void worker_free (worker *wrk) |
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182 | { |
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183 | wrk->next->prev = wrk->prev; |
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184 | wrk->prev->next = wrk->next; |
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185 | |
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186 | free (wrk); |
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187 | } |
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188 | |
114 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
189 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
115 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
190 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
116 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
191 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
117 | |
192 | |
118 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
193 | /* |
119 | static volatile aio_req ress, rese; /* queue start, queue end */ |
194 | * a somewhat faster data structure might be nice, but |
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195 | * with 8 priorities this actually needs <20 insns |
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196 | * per shift, the most expensive operation. |
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197 | */ |
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198 | typedef struct { |
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199 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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200 | int size; |
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201 | } reqq; |
120 | |
202 | |
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203 | static reqq req_queue; |
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204 | static reqq res_queue; |
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205 | |
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206 | int reqq_push (reqq *q, aio_req req) |
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207 | { |
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208 | int pri = req->pri; |
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209 | req->next = 0; |
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210 | |
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211 | if (q->qe[pri]) |
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212 | { |
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213 | q->qe[pri]->next = req; |
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214 | q->qe[pri] = req; |
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215 | } |
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216 | else |
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217 | q->qe[pri] = q->qs[pri] = req; |
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218 | |
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219 | return q->size++; |
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220 | } |
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221 | |
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222 | aio_req reqq_shift (reqq *q) |
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223 | { |
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224 | int pri; |
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225 | |
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226 | if (!q->size) |
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227 | return 0; |
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228 | |
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229 | --q->size; |
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230 | |
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231 | for (pri = NUM_PRI; pri--; ) |
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232 | { |
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233 | aio_req req = q->qs[pri]; |
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234 | |
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235 | if (req) |
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236 | { |
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237 | if (!(q->qs[pri] = req->next)) |
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238 | q->qe[pri] = 0; |
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239 | |
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240 | return req; |
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241 | } |
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242 | } |
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243 | |
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244 | abort (); |
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245 | } |
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246 | |
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247 | static int poll_cb (); |
121 | static void req_invoke (aio_req req); |
248 | static void req_invoke (aio_req req); |
122 | static void req_free (aio_req req); |
249 | static void req_free (aio_req req); |
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250 | static void req_cancel (aio_req req); |
123 | |
251 | |
124 | /* must be called at most once */ |
252 | /* must be called at most once */ |
125 | static SV *req_sv (aio_req req, const char *klass) |
253 | static SV *req_sv (aio_req req, const char *klass) |
126 | { |
254 | { |
127 | if (!req->self) |
255 | if (!req->self) |
… | |
… | |
158 | ENTER; |
286 | ENTER; |
159 | SAVETMPS; |
287 | SAVETMPS; |
160 | PUSHMARK (SP); |
288 | PUSHMARK (SP); |
161 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
289 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
162 | PUTBACK; |
290 | PUTBACK; |
163 | call_sv (grp->fh2, G_VOID | G_EVAL); |
291 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
164 | SPAGAIN; |
292 | SPAGAIN; |
165 | FREETMPS; |
293 | FREETMPS; |
166 | LEAVE; |
294 | LEAVE; |
167 | } |
295 | } |
168 | |
296 | |
… | |
… | |
195 | { |
323 | { |
196 | fd_set rfd; |
324 | fd_set rfd; |
197 | |
325 | |
198 | while (nreqs) |
326 | while (nreqs) |
199 | { |
327 | { |
200 | aio_req req; |
328 | int size; |
201 | pthread_mutex_lock (&reslock); |
329 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
202 | req = ress; |
330 | LOCK (reslock); |
203 | pthread_mutex_unlock (&reslock); |
331 | #endif |
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332 | size = res_queue.size; |
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333 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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334 | UNLOCK (reslock); |
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335 | #endif |
204 | |
336 | |
205 | if (req) |
337 | if (size) |
206 | return; |
338 | return; |
207 | |
339 | |
208 | FD_ZERO(&rfd); |
340 | FD_ZERO(&rfd); |
209 | FD_SET(respipe [0], &rfd); |
341 | FD_SET(respipe [0], &rfd); |
210 | |
342 | |
… | |
… | |
213 | } |
345 | } |
214 | |
346 | |
215 | static void req_invoke (aio_req req) |
347 | static void req_invoke (aio_req req) |
216 | { |
348 | { |
217 | dSP; |
349 | dSP; |
218 | int errorno = errno; |
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219 | |
350 | |
220 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
351 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
221 | return; |
352 | { |
222 | |
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223 | errno = req->errorno; |
353 | errno = req->errorno; |
224 | |
354 | |
225 | ENTER; |
355 | ENTER; |
226 | SAVETMPS; |
356 | SAVETMPS; |
227 | PUSHMARK (SP); |
357 | PUSHMARK (SP); |
228 | EXTEND (SP, 1); |
358 | EXTEND (SP, 1); |
229 | |
359 | |
230 | switch (req->type) |
360 | switch (req->type) |
231 | { |
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232 | case REQ_READDIR: |
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233 | { |
361 | { |
234 | SV *rv = &PL_sv_undef; |
362 | case REQ_READDIR: |
235 | |
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236 | if (req->result >= 0) |
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237 | { |
363 | { |
238 | char *buf = req->data2ptr; |
364 | SV *rv = &PL_sv_undef; |
239 | AV *av = newAV (); |
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240 | |
365 | |
241 | while (req->result) |
366 | if (req->result >= 0) |
242 | { |
367 | { |
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368 | int i; |
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369 | char *buf = req->data2ptr; |
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370 | AV *av = newAV (); |
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371 | |
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372 | av_extend (av, req->result - 1); |
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373 | |
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374 | for (i = 0; i < req->result; ++i) |
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375 | { |
243 | SV *sv = newSVpv (buf, 0); |
376 | SV *sv = newSVpv (buf, 0); |
244 | |
377 | |
245 | av_push (av, sv); |
378 | av_store (av, i, sv); |
246 | buf += SvCUR (sv) + 1; |
379 | buf += SvCUR (sv) + 1; |
247 | req->result--; |
380 | } |
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381 | |
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382 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
248 | } |
383 | } |
249 | |
384 | |
250 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
385 | PUSHs (rv); |
251 | } |
386 | } |
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387 | break; |
252 | |
388 | |
253 | PUSHs (rv); |
389 | case REQ_OPEN: |
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390 | { |
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391 | /* convert fd to fh */ |
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392 | SV *fh; |
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393 | |
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394 | PUSHs (sv_2mortal (newSViv (req->result))); |
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395 | PUTBACK; |
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396 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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397 | SPAGAIN; |
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398 | |
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399 | fh = SvREFCNT_inc (POPs); |
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400 | |
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401 | PUSHMARK (SP); |
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402 | XPUSHs (sv_2mortal (fh)); |
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403 | } |
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404 | break; |
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405 | |
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406 | case REQ_GROUP: |
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407 | req->fd = 2; /* mark group as finished */ |
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408 | |
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409 | if (req->data) |
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410 | { |
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411 | int i; |
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412 | AV *av = (AV *)req->data; |
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413 | |
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414 | EXTEND (SP, AvFILL (av) + 1); |
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415 | for (i = 0; i <= AvFILL (av); ++i) |
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416 | PUSHs (*av_fetch (av, i, 0)); |
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417 | } |
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418 | break; |
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419 | |
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420 | case REQ_NOP: |
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421 | case REQ_BUSY: |
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422 | break; |
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423 | |
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424 | default: |
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425 | PUSHs (sv_2mortal (newSViv (req->result))); |
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426 | break; |
254 | } |
427 | } |
255 | break; |
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256 | |
428 | |
257 | case REQ_OPEN: |
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258 | { |
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259 | /* convert fd to fh */ |
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260 | SV *fh; |
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261 | |
429 | |
262 | PUSHs (sv_2mortal (newSViv (req->result))); |
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263 | PUTBACK; |
430 | PUTBACK; |
264 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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265 | SPAGAIN; |
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266 | |
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267 | fh = SvREFCNT_inc (POPs); |
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268 | |
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269 | PUSHMARK (SP); |
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270 | XPUSHs (sv_2mortal (fh)); |
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271 | } |
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272 | break; |
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273 | |
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274 | case REQ_GROUP: |
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275 | req->fd = 2; /* mark group as finished */ |
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276 | |
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277 | if (req->data) |
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278 | { |
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279 | int i; |
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280 | AV *av = (AV *)req->data; |
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281 | |
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282 | EXTEND (SP, AvFILL (av) + 1); |
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283 | for (i = 0; i <= AvFILL (av); ++i) |
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284 | PUSHs (*av_fetch (av, i, 0)); |
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285 | } |
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286 | break; |
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287 | |
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288 | case REQ_NOP: |
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289 | case REQ_SLEEP: |
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290 | break; |
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291 | |
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292 | default: |
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293 | PUSHs (sv_2mortal (newSViv (req->result))); |
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294 | break; |
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295 | } |
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296 | |
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297 | |
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298 | PUTBACK; |
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299 | call_sv (req->callback, G_VOID | G_EVAL); |
431 | call_sv (req->callback, G_VOID | G_EVAL); |
300 | SPAGAIN; |
432 | SPAGAIN; |
301 | |
433 | |
302 | FREETMPS; |
434 | FREETMPS; |
303 | LEAVE; |
435 | LEAVE; |
304 | |
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305 | errno = errorno; |
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306 | |
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307 | if (SvTRUE (ERRSV)) |
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308 | { |
436 | } |
309 | req_free (req); |
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310 | croak (0); |
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311 | } |
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312 | } |
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313 | |
437 | |
314 | static void req_free (aio_req req) |
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315 | { |
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316 | if (req->grp) |
438 | if (req->grp) |
317 | { |
439 | { |
318 | aio_req grp = req->grp; |
440 | aio_req grp = req->grp; |
319 | |
441 | |
320 | /* unlink request */ |
442 | /* unlink request */ |
… | |
… | |
325 | grp->grp_first = req->grp_next; |
447 | grp->grp_first = req->grp_next; |
326 | |
448 | |
327 | aio_grp_dec (grp); |
449 | aio_grp_dec (grp); |
328 | } |
450 | } |
329 | |
451 | |
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452 | if (SvTRUE (ERRSV)) |
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453 | { |
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454 | req_free (req); |
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455 | croak (0); |
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456 | } |
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457 | } |
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458 | |
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459 | static void req_free (aio_req req) |
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460 | { |
330 | if (req->self) |
461 | if (req->self) |
331 | { |
462 | { |
332 | sv_unmagic (req->self, PERL_MAGIC_ext); |
463 | sv_unmagic (req->self, PERL_MAGIC_ext); |
333 | SvREFCNT_dec (req->self); |
464 | SvREFCNT_dec (req->self); |
334 | } |
465 | } |
… | |
… | |
337 | SvREFCNT_dec (req->fh); |
468 | SvREFCNT_dec (req->fh); |
338 | SvREFCNT_dec (req->fh2); |
469 | SvREFCNT_dec (req->fh2); |
339 | SvREFCNT_dec (req->callback); |
470 | SvREFCNT_dec (req->callback); |
340 | Safefree (req->statdata); |
471 | Safefree (req->statdata); |
341 | |
472 | |
342 | if (req->type == REQ_READDIR && req->result >= 0) |
473 | if (req->type == REQ_READDIR) |
343 | free (req->data2ptr); |
474 | free (req->data2ptr); |
344 | |
475 | |
345 | Safefree (req); |
476 | Safefree (req); |
346 | } |
477 | } |
347 | |
478 | |
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479 | static void req_cancel_subs (aio_req grp) |
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480 | { |
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481 | aio_req sub; |
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482 | |
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483 | if (grp->type != REQ_GROUP) |
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484 | return; |
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485 | |
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486 | SvREFCNT_dec (grp->fh2); |
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487 | grp->fh2 = 0; |
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488 | |
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489 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
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490 | req_cancel (sub); |
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491 | } |
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492 | |
348 | static void req_cancel (aio_req req) |
493 | static void req_cancel (aio_req req) |
349 | { |
494 | { |
350 | req->flags |= FLAG_CANCELLED; |
495 | req->flags |= FLAG_CANCELLED; |
351 | |
496 | |
352 | if (req->type == REQ_GROUP) |
497 | req_cancel_subs (req); |
353 | { |
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354 | aio_req sub; |
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355 | |
|
|
356 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
|
|
357 | req_cancel (sub); |
|
|
358 | } |
|
|
359 | } |
498 | } |
360 | |
499 | |
361 | static int poll_cb () |
500 | static int poll_cb () |
362 | { |
501 | { |
363 | dSP; |
502 | dSP; |
… | |
… | |
365 | int do_croak = 0; |
504 | int do_croak = 0; |
366 | aio_req req; |
505 | aio_req req; |
367 | |
506 | |
368 | for (;;) |
507 | for (;;) |
369 | { |
508 | { |
370 | pthread_mutex_lock (&reslock); |
509 | LOCK (reslock); |
371 | req = ress; |
510 | req = reqq_shift (&res_queue); |
372 | |
511 | |
373 | if (req) |
512 | if (req) |
374 | { |
513 | { |
375 | ress = req->next; |
|
|
376 | |
|
|
377 | if (!ress) |
514 | if (!res_queue.size) |
378 | { |
515 | { |
379 | /* read any signals sent by the worker threads */ |
516 | /* read any signals sent by the worker threads */ |
380 | char buf [32]; |
517 | char buf [32]; |
381 | while (read (respipe [0], buf, 32) == 32) |
518 | while (read (respipe [0], buf, 32) == 32) |
382 | ; |
519 | ; |
383 | |
|
|
384 | rese = 0; |
|
|
385 | } |
520 | } |
386 | } |
521 | } |
387 | |
522 | |
388 | pthread_mutex_unlock (&reslock); |
523 | UNLOCK (reslock); |
389 | |
524 | |
390 | if (!req) |
525 | if (!req) |
391 | break; |
526 | break; |
392 | |
527 | |
393 | --nreqs; |
528 | --nreqs; |
… | |
… | |
428 | static void *aio_proc(void *arg); |
563 | static void *aio_proc(void *arg); |
429 | |
564 | |
430 | static void start_thread (void) |
565 | static void start_thread (void) |
431 | { |
566 | { |
432 | sigset_t fullsigset, oldsigset; |
567 | sigset_t fullsigset, oldsigset; |
433 | pthread_t tid; |
|
|
434 | pthread_attr_t attr; |
568 | pthread_attr_t attr; |
|
|
569 | |
|
|
570 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
571 | |
|
|
572 | if (!wrk) |
|
|
573 | croak ("unable to allocate worker thread data"); |
435 | |
574 | |
436 | pthread_attr_init (&attr); |
575 | pthread_attr_init (&attr); |
437 | pthread_attr_setstacksize (&attr, STACKSIZE); |
576 | pthread_attr_setstacksize (&attr, STACKSIZE); |
438 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
577 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
439 | |
578 | |
440 | sigfillset (&fullsigset); |
579 | sigfillset (&fullsigset); |
|
|
580 | |
|
|
581 | LOCK (wrklock); |
441 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
582 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
442 | |
583 | |
443 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
584 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
585 | { |
|
|
586 | wrk->prev = &wrk_first; |
|
|
587 | wrk->next = wrk_first.next; |
|
|
588 | wrk_first.next->prev = wrk; |
|
|
589 | wrk_first.next = wrk; |
444 | started++; |
590 | started++; |
|
|
591 | } |
|
|
592 | else |
|
|
593 | free (wrk); |
445 | |
594 | |
446 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
595 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
596 | UNLOCK (wrklock); |
447 | } |
597 | } |
448 | |
598 | |
449 | static void req_send (aio_req req) |
599 | static void req_send (aio_req req) |
450 | { |
600 | { |
451 | while (started < wanted && nreqs >= started) |
601 | while (started < wanted && nreqs >= started) |
452 | start_thread (); |
602 | start_thread (); |
453 | |
603 | |
454 | ++nreqs; |
604 | ++nreqs; |
455 | |
605 | |
456 | pthread_mutex_lock (&reqlock); |
606 | LOCK (reqlock); |
457 | |
607 | reqq_push (&req_queue, req); |
458 | req->next = 0; |
|
|
459 | |
|
|
460 | if (reqe) |
|
|
461 | { |
|
|
462 | reqe->next = req; |
|
|
463 | reqe = req; |
|
|
464 | } |
|
|
465 | else |
|
|
466 | reqe = reqs = req; |
|
|
467 | |
|
|
468 | pthread_cond_signal (&reqwait); |
608 | pthread_cond_signal (&reqwait); |
469 | pthread_mutex_unlock (&reqlock); |
609 | UNLOCK (reqlock); |
470 | |
|
|
471 | if (nreqs > max_outstanding) |
|
|
472 | for (;;) |
|
|
473 | { |
|
|
474 | poll_cb (); |
|
|
475 | |
|
|
476 | if (nreqs <= max_outstanding) |
|
|
477 | break; |
|
|
478 | |
|
|
479 | poll_wait (); |
|
|
480 | } |
|
|
481 | } |
610 | } |
482 | |
611 | |
483 | static void end_thread (void) |
612 | static void end_thread (void) |
484 | { |
613 | { |
485 | aio_req req; |
614 | aio_req req; |
|
|
615 | |
486 | Newz (0, req, 1, aio_cb); |
616 | Newz (0, req, 1, aio_cb); |
|
|
617 | |
487 | req->type = REQ_QUIT; |
618 | req->type = REQ_QUIT; |
|
|
619 | req->pri = PRI_MAX + PRI_BIAS; |
488 | |
620 | |
489 | req_send (req); |
621 | req_send (req); |
490 | } |
622 | } |
491 | |
623 | |
492 | static void min_parallel (int nthreads) |
624 | static void min_parallel (int nthreads) |
… | |
… | |
544 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
676 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
545 | { |
677 | { |
546 | ssize_t res; |
678 | ssize_t res; |
547 | off_t ooffset; |
679 | off_t ooffset; |
548 | |
680 | |
549 | pthread_mutex_lock (&preadwritelock); |
681 | LOCK (preadwritelock); |
550 | ooffset = lseek (fd, 0, SEEK_CUR); |
682 | ooffset = lseek (fd, 0, SEEK_CUR); |
551 | lseek (fd, offset, SEEK_SET); |
683 | lseek (fd, offset, SEEK_SET); |
552 | res = read (fd, buf, count); |
684 | res = read (fd, buf, count); |
553 | lseek (fd, ooffset, SEEK_SET); |
685 | lseek (fd, ooffset, SEEK_SET); |
554 | pthread_mutex_unlock (&preadwritelock); |
686 | UNLOCK (preadwritelock); |
555 | |
687 | |
556 | return res; |
688 | return res; |
557 | } |
689 | } |
558 | |
690 | |
559 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
691 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
560 | { |
692 | { |
561 | ssize_t res; |
693 | ssize_t res; |
562 | off_t ooffset; |
694 | off_t ooffset; |
563 | |
695 | |
564 | pthread_mutex_lock (&preadwritelock); |
696 | LOCK (preadwritelock); |
565 | ooffset = lseek (fd, 0, SEEK_CUR); |
697 | ooffset = lseek (fd, 0, SEEK_CUR); |
566 | lseek (fd, offset, SEEK_SET); |
698 | lseek (fd, offset, SEEK_SET); |
567 | res = write (fd, buf, count); |
699 | res = write (fd, buf, count); |
568 | lseek (fd, offset, SEEK_SET); |
700 | lseek (fd, offset, SEEK_SET); |
569 | pthread_mutex_unlock (&preadwritelock); |
701 | UNLOCK (preadwritelock); |
570 | |
702 | |
571 | return res; |
703 | return res; |
572 | } |
704 | } |
573 | #endif |
705 | #endif |
574 | |
706 | |
575 | #if !HAVE_FDATASYNC |
707 | #if !HAVE_FDATASYNC |
576 | # define fdatasync fsync |
708 | # define fdatasync fsync |
577 | #endif |
709 | #endif |
578 | |
710 | |
579 | #if !HAVE_READAHEAD |
711 | #if !HAVE_READAHEAD |
580 | # define readahead aio_readahead |
712 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
581 | |
713 | |
582 | static ssize_t readahead (int fd, off_t offset, size_t count) |
714 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
583 | { |
715 | { |
584 | char readahead_buf[4096]; |
716 | dBUF; |
585 | |
717 | |
586 | while (count > 0) |
718 | while (count > 0) |
587 | { |
719 | { |
588 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
720 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
589 | |
721 | |
590 | pread (fd, readahead_buf, len, offset); |
722 | pread (fd, aio_buf, len, offset); |
591 | offset += len; |
723 | offset += len; |
592 | count -= len; |
724 | count -= len; |
593 | } |
725 | } |
594 | |
726 | |
595 | errno = 0; |
727 | errno = 0; |
596 | } |
728 | } |
|
|
729 | |
597 | #endif |
730 | #endif |
598 | |
731 | |
599 | #if !HAVE_READDIR_R |
732 | #if !HAVE_READDIR_R |
600 | # define readdir_r aio_readdir_r |
733 | # define readdir_r aio_readdir_r |
601 | |
734 | |
… | |
… | |
604 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
737 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
605 | { |
738 | { |
606 | struct dirent *e; |
739 | struct dirent *e; |
607 | int errorno; |
740 | int errorno; |
608 | |
741 | |
609 | pthread_mutex_lock (&readdirlock); |
742 | LOCK (readdirlock); |
610 | |
743 | |
611 | e = readdir (dirp); |
744 | e = readdir (dirp); |
612 | errorno = errno; |
745 | errorno = errno; |
613 | |
746 | |
614 | if (e) |
747 | if (e) |
… | |
… | |
617 | strcpy (ent->d_name, e->d_name); |
750 | strcpy (ent->d_name, e->d_name); |
618 | } |
751 | } |
619 | else |
752 | else |
620 | *res = 0; |
753 | *res = 0; |
621 | |
754 | |
622 | pthread_mutex_unlock (&readdirlock); |
755 | UNLOCK (readdirlock); |
623 | |
756 | |
624 | errno = errorno; |
757 | errno = errorno; |
625 | return e ? 0 : -1; |
758 | return e ? 0 : -1; |
626 | } |
759 | } |
627 | #endif |
760 | #endif |
628 | |
761 | |
629 | /* sendfile always needs emulation */ |
762 | /* sendfile always needs emulation */ |
630 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
763 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
631 | { |
764 | { |
632 | ssize_t res; |
765 | ssize_t res; |
633 | |
766 | |
634 | if (!count) |
767 | if (!count) |
635 | return 0; |
768 | return 0; |
… | |
… | |
684 | #endif |
817 | #endif |
685 | ) |
818 | ) |
686 | ) |
819 | ) |
687 | { |
820 | { |
688 | /* emulate sendfile. this is a major pain in the ass */ |
821 | /* emulate sendfile. this is a major pain in the ass */ |
689 | char buf[4096]; |
822 | dBUF; |
|
|
823 | |
690 | res = 0; |
824 | res = 0; |
691 | |
825 | |
692 | while (count) |
826 | while (count) |
693 | { |
827 | { |
694 | ssize_t cnt; |
828 | ssize_t cnt; |
695 | |
829 | |
696 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
830 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
697 | |
831 | |
698 | if (cnt <= 0) |
832 | if (cnt <= 0) |
699 | { |
833 | { |
700 | if (cnt && !res) res = -1; |
834 | if (cnt && !res) res = -1; |
701 | break; |
835 | break; |
702 | } |
836 | } |
703 | |
837 | |
704 | cnt = write (ofd, buf, cnt); |
838 | cnt = write (ofd, aio_buf, cnt); |
705 | |
839 | |
706 | if (cnt <= 0) |
840 | if (cnt <= 0) |
707 | { |
841 | { |
708 | if (cnt && !res) res = -1; |
842 | if (cnt && !res) res = -1; |
709 | break; |
843 | break; |
… | |
… | |
717 | |
851 | |
718 | return res; |
852 | return res; |
719 | } |
853 | } |
720 | |
854 | |
721 | /* read a full directory */ |
855 | /* read a full directory */ |
722 | static int scandir_ (const char *path, void **namesp) |
856 | static void scandir_ (aio_req req, worker *self) |
723 | { |
857 | { |
724 | DIR *dirp = opendir (path); |
858 | DIR *dirp; |
725 | union |
859 | union |
726 | { |
860 | { |
727 | struct dirent d; |
861 | struct dirent d; |
728 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
862 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
729 | } u; |
863 | } *u; |
730 | struct dirent *entp; |
864 | struct dirent *entp; |
731 | char *name, *names; |
865 | char *name, *names; |
732 | int memlen = 4096; |
866 | int memlen = 4096; |
733 | int memofs = 0; |
867 | int memofs = 0; |
734 | int res = 0; |
868 | int res = 0; |
735 | int errorno; |
869 | int errorno; |
736 | |
870 | |
737 | if (!dirp) |
871 | LOCK (wrklock); |
738 | return -1; |
872 | self->dirp = dirp = opendir (req->dataptr); |
|
|
873 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
874 | UNLOCK (wrklock); |
739 | |
875 | |
740 | names = malloc (memlen); |
876 | req->data2ptr = names = malloc (memlen); |
741 | |
877 | |
|
|
878 | if (dirp && u && names) |
742 | for (;;) |
879 | for (;;) |
743 | { |
880 | { |
|
|
881 | errno = 0; |
744 | errno = 0, readdir_r (dirp, &u.d, &entp); |
882 | readdir_r (dirp, &u->d, &entp); |
745 | |
883 | |
746 | if (!entp) |
884 | if (!entp) |
747 | break; |
885 | break; |
748 | |
886 | |
749 | name = entp->d_name; |
887 | name = entp->d_name; |
750 | |
888 | |
751 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
889 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
752 | { |
890 | { |
753 | int len = strlen (name) + 1; |
891 | int len = strlen (name) + 1; |
754 | |
892 | |
755 | res++; |
893 | res++; |
756 | |
894 | |
757 | while (memofs + len > memlen) |
895 | while (memofs + len > memlen) |
758 | { |
896 | { |
759 | memlen *= 2; |
897 | memlen *= 2; |
|
|
898 | LOCK (wrklock); |
760 | names = realloc (names, memlen); |
899 | req->data2ptr = names = realloc (names, memlen); |
|
|
900 | UNLOCK (wrklock); |
|
|
901 | |
761 | if (!names) |
902 | if (!names) |
762 | break; |
903 | break; |
763 | } |
904 | } |
764 | |
905 | |
765 | memcpy (names + memofs, name, len); |
906 | memcpy (names + memofs, name, len); |
766 | memofs += len; |
907 | memofs += len; |
767 | } |
908 | } |
768 | } |
909 | } |
769 | |
910 | |
770 | errorno = errno; |
|
|
771 | closedir (dirp); |
|
|
772 | |
|
|
773 | if (errorno) |
911 | if (errno) |
774 | { |
|
|
775 | free (names); |
|
|
776 | errno = errorno; |
|
|
777 | res = -1; |
912 | res = -1; |
778 | } |
913 | |
779 | |
914 | req->result = res; |
780 | *namesp = (void *)names; |
|
|
781 | return res; |
|
|
782 | } |
915 | } |
783 | |
916 | |
784 | /*****************************************************************************/ |
917 | /*****************************************************************************/ |
785 | |
918 | |
786 | static void *aio_proc (void *thr_arg) |
919 | static void *aio_proc (void *thr_arg) |
787 | { |
920 | { |
788 | aio_req req; |
921 | aio_req req; |
789 | int type; |
922 | int type; |
|
|
923 | worker *self = (worker *)thr_arg; |
790 | |
924 | |
791 | do |
925 | do |
792 | { |
926 | { |
793 | pthread_mutex_lock (&reqlock); |
927 | LOCK (reqlock); |
794 | |
928 | |
795 | for (;;) |
929 | for (;;) |
796 | { |
930 | { |
797 | req = reqs; |
931 | self->req = req = reqq_shift (&req_queue); |
798 | |
|
|
799 | if (reqs) |
|
|
800 | { |
|
|
801 | reqs = reqs->next; |
|
|
802 | if (!reqs) reqe = 0; |
|
|
803 | } |
|
|
804 | |
932 | |
805 | if (req) |
933 | if (req) |
806 | break; |
934 | break; |
807 | |
935 | |
808 | pthread_cond_wait (&reqwait, &reqlock); |
936 | pthread_cond_wait (&reqwait, &reqlock); |
809 | } |
937 | } |
810 | |
938 | |
811 | pthread_mutex_unlock (&reqlock); |
939 | UNLOCK (reqlock); |
812 | |
940 | |
813 | errno = 0; /* strictly unnecessary */ |
941 | errno = 0; /* strictly unnecessary */ |
814 | type = req->type; /* remember type for QUIT check */ |
942 | type = req->type; /* remember type for QUIT check */ |
815 | |
943 | |
816 | if (!(req->flags & FLAG_CANCELLED)) |
944 | if (!(req->flags & FLAG_CANCELLED)) |
… | |
… | |
818 | { |
946 | { |
819 | 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; |
820 | 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; |
821 | |
949 | |
822 | 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; |
823 | 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; |
824 | |
952 | |
825 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
953 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
826 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
954 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
827 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
955 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
828 | |
956 | |
… | |
… | |
834 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
962 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
835 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
963 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
836 | |
964 | |
837 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
965 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
838 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
966 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
839 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
967 | case REQ_READDIR: scandir_ (req, self); break; |
840 | |
968 | |
841 | case REQ_SLEEP: |
969 | case REQ_BUSY: |
842 | { |
970 | { |
843 | struct timeval tv; |
971 | struct timeval tv; |
844 | |
972 | |
845 | tv.tv_sec = req->fd; |
973 | tv.tv_sec = req->fd; |
846 | tv.tv_usec = req->fd2; |
974 | tv.tv_usec = req->fd2; |
… | |
… | |
858 | break; |
986 | break; |
859 | } |
987 | } |
860 | |
988 | |
861 | req->errorno = errno; |
989 | req->errorno = errno; |
862 | |
990 | |
863 | pthread_mutex_lock (&reslock); |
991 | LOCK (reslock); |
864 | |
992 | |
865 | req->next = 0; |
993 | if (!reqq_push (&res_queue, req)) |
866 | |
|
|
867 | if (rese) |
|
|
868 | { |
|
|
869 | rese->next = req; |
|
|
870 | rese = req; |
|
|
871 | } |
|
|
872 | else |
|
|
873 | { |
|
|
874 | rese = ress = req; |
|
|
875 | |
|
|
876 | /* write a dummy byte to the pipe so fh becomes ready */ |
994 | /* write a dummy byte to the pipe so fh becomes ready */ |
877 | write (respipe [1], &respipe, 1); |
995 | write (respipe [1], &respipe, 1); |
878 | } |
|
|
879 | |
996 | |
880 | pthread_mutex_unlock (&reslock); |
997 | self->req = 0; |
|
|
998 | worker_clear (self); |
|
|
999 | |
|
|
1000 | UNLOCK (reslock); |
881 | } |
1001 | } |
882 | while (type != REQ_QUIT); |
1002 | while (type != REQ_QUIT); |
883 | |
1003 | |
|
|
1004 | LOCK (wrklock); |
|
|
1005 | worker_free (self); |
|
|
1006 | UNLOCK (wrklock); |
|
|
1007 | |
884 | return 0; |
1008 | return 0; |
885 | } |
1009 | } |
886 | |
1010 | |
887 | /*****************************************************************************/ |
1011 | /*****************************************************************************/ |
888 | |
1012 | |
889 | static void atfork_prepare (void) |
1013 | static void atfork_prepare (void) |
890 | { |
1014 | { |
891 | pthread_mutex_lock (&reqlock); |
1015 | LOCK (wrklock); |
892 | pthread_mutex_lock (&reslock); |
1016 | LOCK (reqlock); |
|
|
1017 | LOCK (reslock); |
893 | #if !HAVE_PREADWRITE |
1018 | #if !HAVE_PREADWRITE |
894 | pthread_mutex_lock (&preadwritelock); |
1019 | LOCK (preadwritelock); |
895 | #endif |
1020 | #endif |
896 | #if !HAVE_READDIR_R |
1021 | #if !HAVE_READDIR_R |
897 | pthread_mutex_lock (&readdirlock); |
1022 | LOCK (readdirlock); |
898 | #endif |
1023 | #endif |
899 | } |
1024 | } |
900 | |
1025 | |
901 | static void atfork_parent (void) |
1026 | static void atfork_parent (void) |
902 | { |
1027 | { |
903 | #if !HAVE_READDIR_R |
1028 | #if !HAVE_READDIR_R |
904 | pthread_mutex_unlock (&readdirlock); |
1029 | UNLOCK (readdirlock); |
905 | #endif |
1030 | #endif |
906 | #if !HAVE_PREADWRITE |
1031 | #if !HAVE_PREADWRITE |
907 | pthread_mutex_unlock (&preadwritelock); |
1032 | UNLOCK (preadwritelock); |
908 | #endif |
1033 | #endif |
909 | pthread_mutex_unlock (&reslock); |
1034 | UNLOCK (reslock); |
910 | pthread_mutex_unlock (&reqlock); |
1035 | UNLOCK (reqlock); |
|
|
1036 | UNLOCK (wrklock); |
911 | } |
1037 | } |
912 | |
1038 | |
913 | static void atfork_child (void) |
1039 | static void atfork_child (void) |
914 | { |
1040 | { |
915 | aio_req prv; |
1041 | aio_req prv; |
916 | |
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 | |
917 | started = 0; |
1060 | started = 0; |
918 | |
1061 | nreqs = 0; |
919 | while (reqs) |
|
|
920 | { |
|
|
921 | prv = reqs; |
|
|
922 | reqs = prv->next; |
|
|
923 | req_free (prv); |
|
|
924 | } |
|
|
925 | |
|
|
926 | reqs = reqe = 0; |
|
|
927 | |
|
|
928 | while (ress) |
|
|
929 | { |
|
|
930 | prv = ress; |
|
|
931 | ress = prv->next; |
|
|
932 | req_free (prv); |
|
|
933 | } |
|
|
934 | |
|
|
935 | ress = rese = 0; |
|
|
936 | |
1062 | |
937 | close (respipe [0]); |
1063 | close (respipe [0]); |
938 | close (respipe [1]); |
1064 | close (respipe [1]); |
939 | create_pipe (); |
1065 | create_pipe (); |
940 | |
1066 | |
… | |
… | |
985 | void |
1111 | void |
986 | max_parallel (nthreads) |
1112 | max_parallel (nthreads) |
987 | int nthreads |
1113 | int nthreads |
988 | PROTOTYPE: $ |
1114 | PROTOTYPE: $ |
989 | |
1115 | |
990 | int |
|
|
991 | max_outstanding (nreqs) |
|
|
992 | int nreqs |
|
|
993 | PROTOTYPE: $ |
|
|
994 | CODE: |
|
|
995 | RETVAL = max_outstanding; |
|
|
996 | max_outstanding = nreqs; |
|
|
997 | |
|
|
998 | void |
1116 | void |
999 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1117 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1000 | SV * pathname |
1118 | SV * pathname |
1001 | int flags |
1119 | int flags |
1002 | int mode |
1120 | int mode |
… | |
… | |
1216 | |
1334 | |
1217 | REQ_SEND; |
1335 | REQ_SEND; |
1218 | } |
1336 | } |
1219 | |
1337 | |
1220 | void |
1338 | void |
1221 | aio_sleep (delay,callback=&PL_sv_undef) |
1339 | aio_busy (delay,callback=&PL_sv_undef) |
1222 | double delay |
1340 | double delay |
1223 | SV * callback |
1341 | SV * callback |
1224 | PPCODE: |
1342 | PPCODE: |
1225 | { |
1343 | { |
1226 | dREQ; |
1344 | dREQ; |
1227 | |
1345 | |
1228 | req->type = REQ_SLEEP; |
1346 | req->type = REQ_BUSY; |
1229 | req->fd = delay < 0. ? 0 : delay; |
1347 | req->fd = delay < 0. ? 0 : delay; |
1230 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1348 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1231 | |
1349 | |
1232 | REQ_SEND; |
1350 | REQ_SEND; |
1233 | } |
1351 | } |
… | |
… | |
1256 | req->type = REQ_NOP; |
1374 | req->type = REQ_NOP; |
1257 | |
1375 | |
1258 | REQ_SEND; |
1376 | REQ_SEND; |
1259 | } |
1377 | } |
1260 | |
1378 | |
1261 | #if 0 |
|
|
1262 | |
|
|
1263 | void |
1379 | void |
1264 | aio_pri (int pri = DEFAULT_PRI) |
1380 | aioreq_pri (int pri = DEFAULT_PRI) |
1265 | CODE: |
1381 | CODE: |
1266 | if (pri < PRI_MIN) pri = PRI_MIN; |
1382 | if (pri < PRI_MIN) pri = PRI_MIN; |
1267 | if (pri > PRI_MAX) pri = PRI_MAX; |
1383 | if (pri > PRI_MAX) pri = PRI_MAX; |
1268 | next_pri = pri + PRI_BIAS; |
1384 | next_pri = pri + PRI_BIAS; |
1269 | |
1385 | |
1270 | #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; |
1271 | |
1393 | |
1272 | void |
1394 | void |
1273 | flush () |
1395 | flush () |
1274 | PROTOTYPE: |
1396 | PROTOTYPE: |
1275 | CODE: |
1397 | CODE: |
… | |
… | |
1324 | |
1446 | |
1325 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1447 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1326 | |
1448 | |
1327 | void |
1449 | void |
1328 | cancel (aio_req_ornot req) |
1450 | cancel (aio_req_ornot req) |
1329 | PROTOTYPE: |
|
|
1330 | CODE: |
1451 | CODE: |
1331 | req_cancel (req); |
1452 | req_cancel (req); |
1332 | |
1453 | |
1333 | void |
1454 | void |
1334 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1455 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
… | |
… | |
1370 | } |
1491 | } |
1371 | } |
1492 | } |
1372 | } |
1493 | } |
1373 | |
1494 | |
1374 | void |
1495 | void |
|
|
1496 | cancel_subs (aio_req_ornot req) |
|
|
1497 | CODE: |
|
|
1498 | req_cancel_subs (req); |
|
|
1499 | |
|
|
1500 | void |
1375 | result (aio_req grp, ...) |
1501 | result (aio_req grp, ...) |
1376 | CODE: |
1502 | CODE: |
1377 | { |
1503 | { |
1378 | int i; |
1504 | int i; |
1379 | AV *av = newAV (); |
1505 | AV *av = newAV (); |
… | |
… | |
1384 | SvREFCNT_dec (grp->data); |
1510 | SvREFCNT_dec (grp->data); |
1385 | grp->data = (SV *)av; |
1511 | grp->data = (SV *)av; |
1386 | } |
1512 | } |
1387 | |
1513 | |
1388 | void |
1514 | void |
1389 | feed_limit (aio_req grp, int limit) |
1515 | limit (aio_req grp, int limit) |
1390 | CODE: |
1516 | CODE: |
1391 | grp->fd2 = limit; |
1517 | grp->fd2 = limit; |
1392 | aio_grp_feed (grp); |
1518 | aio_grp_feed (grp); |
1393 | |
1519 | |
1394 | void |
1520 | void |