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 |
51 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
60 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
52 | # define STACKSIZE PTHREAD_STACK_MIN |
61 | # define STACKSIZE PTHREAD_STACK_MIN |
53 | #else |
62 | #else |
54 | # define STACKSIZE 16384 |
63 | # define STACKSIZE 16384 |
55 | #endif |
64 | #endif |
56 | |
65 | |
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66 | /* wether word reads are potentially non-atomic. |
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67 | * this is conservatice, likely most arches this runs |
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68 | * on have atomic word read/writes. |
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69 | */ |
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70 | #ifndef WORDREAD_UNSAFE |
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71 | # if __i386 || __x86_64 |
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72 | # define WORDREAD_UNSAFE 0 |
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73 | # else |
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74 | # define WORDREAD_UNSAFE 1 |
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75 | # endif |
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76 | #endif |
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77 | |
57 | /* buffer size for various temporary buffers */ |
78 | /* buffer size for various temporary buffers */ |
58 | #define AIO_BUFSIZE 65536 |
79 | #define AIO_BUFSIZE 65536 |
59 | |
80 | |
60 | #define dBUF \ |
81 | #define dBUF \ |
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82 | char *aio_buf; \ |
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83 | LOCK (wrklock); \ |
61 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
84 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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85 | UNLOCK (wrklock); \ |
62 | if (!aio_buf) \ |
86 | if (!aio_buf) \ |
63 | return -1; |
87 | return -1; |
64 | |
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65 | #define fBUF free (aio_buf) |
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66 | |
88 | |
67 | enum { |
89 | enum { |
68 | REQ_QUIT, |
90 | REQ_QUIT, |
69 | REQ_OPEN, REQ_CLOSE, |
91 | REQ_OPEN, REQ_CLOSE, |
70 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
92 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
71 | REQ_SENDFILE, |
93 | REQ_SENDFILE, |
72 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
94 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
73 | REQ_FSYNC, REQ_FDATASYNC, |
95 | REQ_FSYNC, REQ_FDATASYNC, |
74 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
96 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
75 | REQ_READDIR, |
97 | REQ_MKNOD, REQ_READDIR, |
76 | REQ_LINK, REQ_SYMLINK, |
98 | REQ_LINK, REQ_SYMLINK, |
77 | REQ_GROUP, REQ_NOP, |
99 | REQ_GROUP, REQ_NOP, |
78 | REQ_SLEEP, |
100 | REQ_BUSY, |
79 | }; |
101 | }; |
80 | |
102 | |
81 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
103 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
82 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
104 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
83 | |
105 | |
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122 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
144 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
123 | }; |
145 | }; |
124 | |
146 | |
125 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
147 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
126 | |
148 | |
127 | static int started, wanted; |
149 | static unsigned int started, wanted; |
128 | static volatile int nreqs; |
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129 | static int max_outstanding = 1<<30; |
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130 | static int respipe [2]; |
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131 | |
150 | |
132 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
151 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
133 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
152 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
134 | #else |
153 | #else |
135 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
154 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
136 | #endif |
155 | #endif |
137 | |
156 | |
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157 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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158 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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159 | |
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160 | /* worker threads management */ |
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161 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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162 | |
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163 | typedef struct worker { |
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164 | /* locked by wrklock */ |
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165 | struct worker *prev, *next; |
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166 | |
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167 | pthread_t tid; |
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168 | |
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169 | /* locked by reslock, reqlock or wrklock */ |
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170 | aio_req req; /* currently processed request */ |
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171 | void *dbuf; |
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172 | DIR *dirp; |
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173 | } worker; |
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174 | |
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175 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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176 | |
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177 | static void worker_clear (worker *wrk) |
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178 | { |
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179 | if (wrk->dirp) |
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180 | { |
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181 | closedir (wrk->dirp); |
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182 | wrk->dirp = 0; |
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183 | } |
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184 | |
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185 | if (wrk->dbuf) |
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186 | { |
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187 | free (wrk->dbuf); |
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188 | wrk->dbuf = 0; |
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189 | } |
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190 | } |
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191 | |
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192 | static void worker_free (worker *wrk) |
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193 | { |
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194 | wrk->next->prev = wrk->prev; |
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195 | wrk->prev->next = wrk->next; |
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196 | |
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197 | free (wrk); |
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198 | } |
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199 | |
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200 | static volatile unsigned int nreqs, nready, npending; |
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201 | static volatile unsigned int max_outstanding = 0xffffffff; |
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202 | static int respipe [2]; |
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203 | |
138 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
204 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
139 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
205 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
140 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
206 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
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207 | |
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208 | #if WORDREAD_UNSAFE |
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209 | |
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210 | static unsigned int get_nready () |
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211 | { |
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212 | unsigned int retval; |
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213 | |
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214 | LOCK (reqlock); |
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215 | retval = nready; |
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216 | UNLOCK (reqlock); |
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217 | |
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218 | return retval; |
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219 | } |
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220 | |
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221 | static unsigned int get_npending () |
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222 | { |
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223 | unsigned int retval; |
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224 | |
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225 | LOCK (reslock); |
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226 | retval = npending; |
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227 | UNLOCK (reslock); |
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228 | |
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229 | return retval; |
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230 | } |
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231 | |
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232 | #else |
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233 | |
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234 | # define get_nready() nready |
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235 | # define get_npending() npending |
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236 | |
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237 | #endif |
141 | |
238 | |
142 | /* |
239 | /* |
143 | * a somewhat faster data structure might be nice, but |
240 | * a somewhat faster data structure might be nice, but |
144 | * with 8 priorities this actually needs <20 insns |
241 | * with 8 priorities this actually needs <20 insns |
145 | * per shift, the most expensive operation. |
242 | * per shift, the most expensive operation. |
… | |
… | |
191 | } |
288 | } |
192 | |
289 | |
193 | abort (); |
290 | abort (); |
194 | } |
291 | } |
195 | |
292 | |
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293 | static int poll_cb (int max); |
196 | static void req_invoke (aio_req req); |
294 | static void req_invoke (aio_req req); |
197 | static void req_free (aio_req req); |
295 | static void req_free (aio_req req); |
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296 | static void req_cancel (aio_req req); |
198 | |
297 | |
199 | /* must be called at most once */ |
298 | /* must be called at most once */ |
200 | static SV *req_sv (aio_req req, const char *klass) |
299 | static SV *req_sv (aio_req req, const char *klass) |
201 | { |
300 | { |
202 | if (!req->self) |
301 | if (!req->self) |
… | |
… | |
264 | req_invoke (grp); |
363 | req_invoke (grp); |
265 | req_free (grp); |
364 | req_free (grp); |
266 | } |
365 | } |
267 | } |
366 | } |
268 | |
367 | |
269 | static void poll_wait () |
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270 | { |
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271 | fd_set rfd; |
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272 | |
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273 | while (nreqs) |
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274 | { |
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275 | int size; |
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276 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
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277 | pthread_mutex_lock (&reslock); |
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278 | #endif |
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279 | size = res_queue.size; |
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280 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
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281 | pthread_mutex_unlock (&reslock); |
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282 | #endif |
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283 | |
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284 | if (size) |
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285 | return; |
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286 | |
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287 | FD_ZERO(&rfd); |
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288 | FD_SET(respipe [0], &rfd); |
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289 | |
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290 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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291 | } |
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292 | } |
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293 | |
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294 | static void req_invoke (aio_req req) |
368 | static void req_invoke (aio_req req) |
295 | { |
369 | { |
296 | dSP; |
370 | dSP; |
297 | |
371 | |
298 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
372 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
299 | { |
373 | { |
300 | errno = req->errorno; |
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301 | |
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302 | ENTER; |
374 | ENTER; |
303 | SAVETMPS; |
375 | SAVETMPS; |
304 | PUSHMARK (SP); |
376 | PUSHMARK (SP); |
305 | EXTEND (SP, 1); |
377 | EXTEND (SP, 1); |
306 | |
378 | |
… | |
… | |
310 | { |
382 | { |
311 | SV *rv = &PL_sv_undef; |
383 | SV *rv = &PL_sv_undef; |
312 | |
384 | |
313 | if (req->result >= 0) |
385 | if (req->result >= 0) |
314 | { |
386 | { |
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387 | int i; |
315 | char *buf = req->data2ptr; |
388 | char *buf = req->data2ptr; |
316 | AV *av = newAV (); |
389 | AV *av = newAV (); |
317 | |
390 | |
318 | while (req->result) |
391 | av_extend (av, req->result - 1); |
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392 | |
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393 | for (i = 0; i < req->result; ++i) |
319 | { |
394 | { |
320 | SV *sv = newSVpv (buf, 0); |
395 | SV *sv = newSVpv (buf, 0); |
321 | |
396 | |
322 | av_push (av, sv); |
397 | av_store (av, i, sv); |
323 | buf += SvCUR (sv) + 1; |
398 | buf += SvCUR (sv) + 1; |
324 | req->result--; |
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325 | } |
399 | } |
326 | |
400 | |
327 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
401 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
328 | } |
402 | } |
329 | |
403 | |
… | |
… | |
361 | PUSHs (*av_fetch (av, i, 0)); |
435 | PUSHs (*av_fetch (av, i, 0)); |
362 | } |
436 | } |
363 | break; |
437 | break; |
364 | |
438 | |
365 | case REQ_NOP: |
439 | case REQ_NOP: |
366 | case REQ_SLEEP: |
440 | case REQ_BUSY: |
367 | break; |
441 | break; |
368 | |
442 | |
369 | default: |
443 | default: |
370 | PUSHs (sv_2mortal (newSViv (req->result))); |
444 | PUSHs (sv_2mortal (newSViv (req->result))); |
371 | break; |
445 | break; |
372 | } |
446 | } |
373 | |
447 | |
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448 | errno = req->errorno; |
374 | |
449 | |
375 | PUTBACK; |
450 | PUTBACK; |
376 | call_sv (req->callback, G_VOID | G_EVAL); |
451 | call_sv (req->callback, G_VOID | G_EVAL); |
377 | SPAGAIN; |
452 | SPAGAIN; |
378 | |
453 | |
… | |
… | |
413 | SvREFCNT_dec (req->fh); |
488 | SvREFCNT_dec (req->fh); |
414 | SvREFCNT_dec (req->fh2); |
489 | SvREFCNT_dec (req->fh2); |
415 | SvREFCNT_dec (req->callback); |
490 | SvREFCNT_dec (req->callback); |
416 | Safefree (req->statdata); |
491 | Safefree (req->statdata); |
417 | |
492 | |
418 | if (req->type == REQ_READDIR && req->result >= 0) |
493 | if (req->type == REQ_READDIR) |
419 | free (req->data2ptr); |
494 | free (req->data2ptr); |
420 | |
495 | |
421 | Safefree (req); |
496 | Safefree (req); |
422 | } |
497 | } |
423 | |
498 | |
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499 | static void req_cancel_subs (aio_req grp) |
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500 | { |
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501 | aio_req sub; |
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502 | |
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503 | if (grp->type != REQ_GROUP) |
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504 | return; |
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505 | |
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506 | SvREFCNT_dec (grp->fh2); |
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507 | grp->fh2 = 0; |
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508 | |
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509 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
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510 | req_cancel (sub); |
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511 | } |
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512 | |
424 | static void req_cancel (aio_req req) |
513 | static void req_cancel (aio_req req) |
425 | { |
514 | { |
426 | req->flags |= FLAG_CANCELLED; |
515 | req->flags |= FLAG_CANCELLED; |
427 | |
516 | |
428 | if (req->type == REQ_GROUP) |
517 | req_cancel_subs (req); |
429 | { |
518 | } |
430 | aio_req sub; |
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431 | |
519 | |
432 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
520 | static void *aio_proc(void *arg); |
433 | req_cancel (sub); |
521 | |
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522 | static void start_thread (void) |
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523 | { |
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524 | sigset_t fullsigset, oldsigset; |
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525 | pthread_attr_t attr; |
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526 | |
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527 | worker *wrk = calloc (1, sizeof (worker)); |
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528 | |
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529 | if (!wrk) |
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530 | croak ("unable to allocate worker thread data"); |
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531 | |
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532 | pthread_attr_init (&attr); |
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533 | pthread_attr_setstacksize (&attr, STACKSIZE); |
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534 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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535 | #ifdef PTHREAD_SCOPE_PROCESS |
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536 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
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537 | #endif |
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538 | |
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539 | sigfillset (&fullsigset); |
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540 | |
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541 | LOCK (wrklock); |
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542 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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543 | |
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544 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
434 | } |
545 | { |
435 | } |
546 | wrk->prev = &wrk_first; |
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547 | wrk->next = wrk_first.next; |
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548 | wrk_first.next->prev = wrk; |
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549 | wrk_first.next = wrk; |
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550 | ++started; |
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551 | } |
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552 | else |
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553 | free (wrk); |
436 | |
554 | |
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555 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
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556 | UNLOCK (wrklock); |
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557 | } |
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558 | |
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559 | static void maybe_start_thread () |
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560 | { |
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561 | #if 0 |
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562 | static struct timeval last; |
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563 | struct timeval diff, now; |
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564 | #endif |
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565 | |
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566 | if (started >= wanted) |
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567 | return; |
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568 | |
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569 | if (nready <= nreqs - get_nready () - get_npending ()) |
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570 | return; |
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571 | |
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572 | #if 0 |
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573 | gettimeofday (&now, 0); |
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574 | |
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575 | diff.tv_sec = now.tv_sec - last.tv_sec; |
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576 | diff.tv_usec = now.tv_usec - last.tv_usec; |
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577 | |
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578 | if (diff.tv_usec < 0) |
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579 | { |
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580 | --diff.tv_sec; |
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581 | diff.tv_usec += 1000000; |
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582 | } |
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583 | |
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584 | if (!diff.tv_sec && diff.tv_usec < 10000) |
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585 | return; |
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586 | |
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587 | last = now; |
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588 | #endif |
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589 | |
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590 | start_thread (); |
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591 | } |
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592 | |
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593 | static void req_send (aio_req req) |
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594 | { |
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595 | ++nreqs; |
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596 | |
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597 | LOCK (reqlock); |
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598 | ++nready; |
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599 | reqq_push (&req_queue, req); |
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600 | pthread_cond_signal (&reqwait); |
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601 | UNLOCK (reqlock); |
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602 | |
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603 | maybe_start_thread (); |
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604 | } |
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605 | |
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606 | static void end_thread (void) |
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607 | { |
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608 | aio_req req; |
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609 | |
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610 | Newz (0, req, 1, aio_cb); |
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611 | |
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612 | req->type = REQ_QUIT; |
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613 | req->pri = PRI_MAX + PRI_BIAS; |
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614 | |
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615 | req_send (req); |
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616 | |
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617 | LOCK (wrklock); |
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618 | --started; |
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619 | UNLOCK (wrklock); |
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620 | } |
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621 | |
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622 | static void min_parallel (int nthreads) |
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623 | { |
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624 | if (wanted < nthreads) |
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625 | wanted = nthreads; |
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626 | } |
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627 | |
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628 | static void max_parallel (int nthreads) |
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629 | { |
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630 | if (wanted > nthreads) |
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631 | wanted = nthreads; |
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632 | |
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633 | while (started > wanted) |
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634 | end_thread (); |
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635 | } |
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636 | |
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637 | static void poll_wait () |
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638 | { |
|
|
639 | fd_set rfd; |
|
|
640 | |
|
|
641 | while (nreqs) |
|
|
642 | { |
|
|
643 | int size; |
|
|
644 | if (WORDREAD_UNSAFE) LOCK (reslock); |
|
|
645 | size = res_queue.size; |
|
|
646 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
|
|
647 | |
|
|
648 | if (size) |
|
|
649 | return; |
|
|
650 | |
|
|
651 | maybe_start_thread (); |
|
|
652 | |
|
|
653 | FD_ZERO(&rfd); |
|
|
654 | FD_SET(respipe [0], &rfd); |
|
|
655 | |
|
|
656 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
657 | } |
|
|
658 | } |
|
|
659 | |
437 | static int poll_cb () |
660 | static int poll_cb (int max) |
438 | { |
661 | { |
439 | dSP; |
662 | dSP; |
440 | int count = 0; |
663 | int count = 0; |
441 | int do_croak = 0; |
664 | int do_croak = 0; |
442 | aio_req req; |
665 | aio_req req; |
443 | |
666 | |
444 | for (;;) |
667 | for (;;) |
445 | { |
668 | { |
446 | pthread_mutex_lock (&reslock); |
669 | while (max <= 0 || count < max) |
447 | req = reqq_shift (&res_queue); |
|
|
448 | |
|
|
449 | if (req) |
|
|
450 | { |
670 | { |
|
|
671 | maybe_start_thread (); |
|
|
672 | |
|
|
673 | LOCK (reslock); |
|
|
674 | req = reqq_shift (&res_queue); |
|
|
675 | |
451 | if (!res_queue.size) |
676 | if (req) |
452 | { |
677 | { |
|
|
678 | --npending; |
|
|
679 | |
|
|
680 | if (!res_queue.size) |
|
|
681 | { |
453 | /* read any signals sent by the worker threads */ |
682 | /* read any signals sent by the worker threads */ |
454 | char buf [32]; |
683 | char buf [32]; |
455 | while (read (respipe [0], buf, 32) == 32) |
684 | while (read (respipe [0], buf, 32) == 32) |
|
|
685 | ; |
456 | ; |
686 | } |
457 | } |
687 | } |
|
|
688 | |
|
|
689 | UNLOCK (reslock); |
|
|
690 | |
|
|
691 | if (!req) |
|
|
692 | break; |
|
|
693 | |
|
|
694 | --nreqs; |
|
|
695 | |
|
|
696 | if (req->type == REQ_GROUP && req->length) |
|
|
697 | { |
|
|
698 | req->fd = 1; /* mark request as delayed */ |
|
|
699 | continue; |
|
|
700 | } |
|
|
701 | else |
|
|
702 | { |
|
|
703 | if (req->type == REQ_READ) |
|
|
704 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
705 | |
|
|
706 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
707 | SvREADONLY_off (req->data); |
|
|
708 | |
|
|
709 | if (req->statdata) |
|
|
710 | { |
|
|
711 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
712 | PL_laststatval = req->result; |
|
|
713 | PL_statcache = *(req->statdata); |
|
|
714 | } |
|
|
715 | |
|
|
716 | req_invoke (req); |
|
|
717 | |
|
|
718 | count++; |
|
|
719 | } |
|
|
720 | |
|
|
721 | req_free (req); |
458 | } |
722 | } |
459 | |
723 | |
460 | pthread_mutex_unlock (&reslock); |
724 | if (nreqs <= max_outstanding) |
461 | |
|
|
462 | if (!req) |
|
|
463 | break; |
725 | break; |
464 | |
726 | |
465 | --nreqs; |
727 | poll_wait (); |
466 | |
728 | |
467 | if (req->type == REQ_QUIT) |
729 | max = 0; |
468 | started--; |
|
|
469 | else if (req->type == REQ_GROUP && req->length) |
|
|
470 | { |
|
|
471 | req->fd = 1; /* mark request as delayed */ |
|
|
472 | continue; |
|
|
473 | } |
|
|
474 | else |
|
|
475 | { |
|
|
476 | if (req->type == REQ_READ) |
|
|
477 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
478 | |
|
|
479 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
480 | SvREADONLY_off (req->data); |
|
|
481 | |
|
|
482 | if (req->statdata) |
|
|
483 | { |
|
|
484 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
485 | PL_laststatval = req->result; |
|
|
486 | PL_statcache = *(req->statdata); |
|
|
487 | } |
|
|
488 | |
|
|
489 | req_invoke (req); |
|
|
490 | |
|
|
491 | count++; |
|
|
492 | } |
|
|
493 | |
|
|
494 | req_free (req); |
|
|
495 | } |
730 | } |
496 | |
731 | |
497 | return count; |
732 | return count; |
498 | } |
|
|
499 | |
|
|
500 | static void *aio_proc(void *arg); |
|
|
501 | |
|
|
502 | static void start_thread (void) |
|
|
503 | { |
|
|
504 | sigset_t fullsigset, oldsigset; |
|
|
505 | pthread_t tid; |
|
|
506 | pthread_attr_t attr; |
|
|
507 | |
|
|
508 | pthread_attr_init (&attr); |
|
|
509 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
510 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
511 | |
|
|
512 | sigfillset (&fullsigset); |
|
|
513 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
514 | |
|
|
515 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
|
|
516 | started++; |
|
|
517 | |
|
|
518 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
519 | } |
|
|
520 | |
|
|
521 | static void req_send (aio_req req) |
|
|
522 | { |
|
|
523 | while (started < wanted && nreqs >= started) |
|
|
524 | start_thread (); |
|
|
525 | |
|
|
526 | ++nreqs; |
|
|
527 | |
|
|
528 | pthread_mutex_lock (&reqlock); |
|
|
529 | reqq_push (&req_queue, req); |
|
|
530 | pthread_cond_signal (&reqwait); |
|
|
531 | pthread_mutex_unlock (&reqlock); |
|
|
532 | |
|
|
533 | if (nreqs > max_outstanding) |
|
|
534 | for (;;) |
|
|
535 | { |
|
|
536 | poll_cb (); |
|
|
537 | |
|
|
538 | if (nreqs <= max_outstanding) |
|
|
539 | break; |
|
|
540 | |
|
|
541 | poll_wait (); |
|
|
542 | } |
|
|
543 | } |
|
|
544 | |
|
|
545 | static void end_thread (void) |
|
|
546 | { |
|
|
547 | aio_req req; |
|
|
548 | |
|
|
549 | Newz (0, req, 1, aio_cb); |
|
|
550 | |
|
|
551 | req->type = REQ_QUIT; |
|
|
552 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
553 | |
|
|
554 | req_send (req); |
|
|
555 | } |
|
|
556 | |
|
|
557 | static void min_parallel (int nthreads) |
|
|
558 | { |
|
|
559 | if (wanted < nthreads) |
|
|
560 | wanted = nthreads; |
|
|
561 | } |
|
|
562 | |
|
|
563 | static void max_parallel (int nthreads) |
|
|
564 | { |
|
|
565 | int cur = started; |
|
|
566 | |
|
|
567 | if (wanted > nthreads) |
|
|
568 | wanted = nthreads; |
|
|
569 | |
|
|
570 | while (cur > wanted) |
|
|
571 | { |
|
|
572 | end_thread (); |
|
|
573 | cur--; |
|
|
574 | } |
|
|
575 | |
|
|
576 | while (started > wanted) |
|
|
577 | { |
|
|
578 | poll_wait (); |
|
|
579 | poll_cb (); |
|
|
580 | } |
|
|
581 | } |
733 | } |
582 | |
734 | |
583 | static void create_pipe () |
735 | static void create_pipe () |
584 | { |
736 | { |
585 | if (pipe (respipe)) |
737 | if (pipe (respipe)) |
… | |
… | |
609 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
761 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
610 | { |
762 | { |
611 | ssize_t res; |
763 | ssize_t res; |
612 | off_t ooffset; |
764 | off_t ooffset; |
613 | |
765 | |
614 | pthread_mutex_lock (&preadwritelock); |
766 | LOCK (preadwritelock); |
615 | ooffset = lseek (fd, 0, SEEK_CUR); |
767 | ooffset = lseek (fd, 0, SEEK_CUR); |
616 | lseek (fd, offset, SEEK_SET); |
768 | lseek (fd, offset, SEEK_SET); |
617 | res = read (fd, buf, count); |
769 | res = read (fd, buf, count); |
618 | lseek (fd, ooffset, SEEK_SET); |
770 | lseek (fd, ooffset, SEEK_SET); |
619 | pthread_mutex_unlock (&preadwritelock); |
771 | UNLOCK (preadwritelock); |
620 | |
772 | |
621 | return res; |
773 | return res; |
622 | } |
774 | } |
623 | |
775 | |
624 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
776 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
625 | { |
777 | { |
626 | ssize_t res; |
778 | ssize_t res; |
627 | off_t ooffset; |
779 | off_t ooffset; |
628 | |
780 | |
629 | pthread_mutex_lock (&preadwritelock); |
781 | LOCK (preadwritelock); |
630 | ooffset = lseek (fd, 0, SEEK_CUR); |
782 | ooffset = lseek (fd, 0, SEEK_CUR); |
631 | lseek (fd, offset, SEEK_SET); |
783 | lseek (fd, offset, SEEK_SET); |
632 | res = write (fd, buf, count); |
784 | res = write (fd, buf, count); |
633 | lseek (fd, offset, SEEK_SET); |
785 | lseek (fd, offset, SEEK_SET); |
634 | pthread_mutex_unlock (&preadwritelock); |
786 | UNLOCK (preadwritelock); |
635 | |
787 | |
636 | return res; |
788 | return res; |
637 | } |
789 | } |
638 | #endif |
790 | #endif |
639 | |
791 | |
640 | #if !HAVE_FDATASYNC |
792 | #if !HAVE_FDATASYNC |
641 | # define fdatasync fsync |
793 | # define fdatasync fsync |
642 | #endif |
794 | #endif |
643 | |
795 | |
644 | #if !HAVE_READAHEAD |
796 | #if !HAVE_READAHEAD |
645 | # define readahead aio_readahead |
797 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
646 | |
798 | |
647 | static ssize_t readahead (int fd, off_t offset, size_t count) |
799 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
648 | { |
800 | { |
649 | dBUF; |
801 | dBUF; |
650 | |
802 | |
651 | while (count > 0) |
803 | while (count > 0) |
652 | { |
804 | { |
… | |
… | |
655 | pread (fd, aio_buf, len, offset); |
807 | pread (fd, aio_buf, len, offset); |
656 | offset += len; |
808 | offset += len; |
657 | count -= len; |
809 | count -= len; |
658 | } |
810 | } |
659 | |
811 | |
660 | fBUF; |
|
|
661 | |
|
|
662 | errno = 0; |
812 | errno = 0; |
663 | } |
813 | } |
|
|
814 | |
664 | #endif |
815 | #endif |
665 | |
816 | |
666 | #if !HAVE_READDIR_R |
817 | #if !HAVE_READDIR_R |
667 | # define readdir_r aio_readdir_r |
818 | # define readdir_r aio_readdir_r |
668 | |
819 | |
… | |
… | |
671 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
822 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
672 | { |
823 | { |
673 | struct dirent *e; |
824 | struct dirent *e; |
674 | int errorno; |
825 | int errorno; |
675 | |
826 | |
676 | pthread_mutex_lock (&readdirlock); |
827 | LOCK (readdirlock); |
677 | |
828 | |
678 | e = readdir (dirp); |
829 | e = readdir (dirp); |
679 | errorno = errno; |
830 | errorno = errno; |
680 | |
831 | |
681 | if (e) |
832 | if (e) |
… | |
… | |
684 | strcpy (ent->d_name, e->d_name); |
835 | strcpy (ent->d_name, e->d_name); |
685 | } |
836 | } |
686 | else |
837 | else |
687 | *res = 0; |
838 | *res = 0; |
688 | |
839 | |
689 | pthread_mutex_unlock (&readdirlock); |
840 | UNLOCK (readdirlock); |
690 | |
841 | |
691 | errno = errorno; |
842 | errno = errorno; |
692 | return e ? 0 : -1; |
843 | return e ? 0 : -1; |
693 | } |
844 | } |
694 | #endif |
845 | #endif |
695 | |
846 | |
696 | /* sendfile always needs emulation */ |
847 | /* sendfile always needs emulation */ |
697 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
848 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
698 | { |
849 | { |
699 | ssize_t res; |
850 | ssize_t res; |
700 | |
851 | |
701 | if (!count) |
852 | if (!count) |
702 | return 0; |
853 | return 0; |
… | |
… | |
713 | { |
864 | { |
714 | off_t sbytes; |
865 | off_t sbytes; |
715 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
866 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
716 | |
867 | |
717 | if (res < 0 && sbytes) |
868 | if (res < 0 && sbytes) |
718 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
869 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
719 | res = sbytes; |
870 | res = sbytes; |
720 | } |
871 | } |
721 | |
872 | |
722 | # elif __hpux |
873 | # elif __hpux |
723 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
874 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
779 | |
930 | |
780 | offset += cnt; |
931 | offset += cnt; |
781 | res += cnt; |
932 | res += cnt; |
782 | count -= cnt; |
933 | count -= cnt; |
783 | } |
934 | } |
784 | |
|
|
785 | fBUF; |
|
|
786 | } |
935 | } |
787 | |
936 | |
788 | return res; |
937 | return res; |
789 | } |
938 | } |
790 | |
939 | |
791 | /* read a full directory */ |
940 | /* read a full directory */ |
792 | static int scandir_ (const char *path, void **namesp) |
941 | static void scandir_ (aio_req req, worker *self) |
793 | { |
942 | { |
794 | DIR *dirp; |
943 | DIR *dirp; |
795 | union |
944 | union |
796 | { |
945 | { |
797 | struct dirent d; |
946 | struct dirent d; |
… | |
… | |
802 | int memlen = 4096; |
951 | int memlen = 4096; |
803 | int memofs = 0; |
952 | int memofs = 0; |
804 | int res = 0; |
953 | int res = 0; |
805 | int errorno; |
954 | int errorno; |
806 | |
955 | |
807 | dirp = opendir (path); |
956 | LOCK (wrklock); |
808 | if (!dirp) |
957 | self->dirp = dirp = opendir (req->dataptr); |
809 | return -1; |
|
|
810 | |
|
|
811 | u = malloc (sizeof (*u)); |
958 | self->dbuf = u = malloc (sizeof (*u)); |
812 | names = malloc (memlen); |
959 | req->data2ptr = names = malloc (memlen); |
|
|
960 | UNLOCK (wrklock); |
813 | |
961 | |
814 | if (u && names) |
962 | if (dirp && u && names) |
815 | for (;;) |
963 | for (;;) |
816 | { |
964 | { |
817 | errno = 0; |
965 | errno = 0; |
818 | readdir_r (dirp, &u->d, &entp); |
966 | readdir_r (dirp, &u->d, &entp); |
819 | |
967 | |
… | |
… | |
829 | res++; |
977 | res++; |
830 | |
978 | |
831 | while (memofs + len > memlen) |
979 | while (memofs + len > memlen) |
832 | { |
980 | { |
833 | memlen *= 2; |
981 | memlen *= 2; |
|
|
982 | LOCK (wrklock); |
834 | names = realloc (names, memlen); |
983 | req->data2ptr = names = realloc (names, memlen); |
|
|
984 | UNLOCK (wrklock); |
|
|
985 | |
835 | if (!names) |
986 | if (!names) |
836 | break; |
987 | break; |
837 | } |
988 | } |
838 | |
989 | |
839 | memcpy (names + memofs, name, len); |
990 | memcpy (names + memofs, name, len); |
840 | memofs += len; |
991 | memofs += len; |
841 | } |
992 | } |
842 | } |
993 | } |
843 | |
994 | |
844 | errorno = errno; |
|
|
845 | free (u); |
|
|
846 | closedir (dirp); |
|
|
847 | |
|
|
848 | if (errorno) |
995 | if (errno) |
849 | { |
|
|
850 | free (names); |
|
|
851 | errno = errorno; |
|
|
852 | res = -1; |
996 | res = -1; |
853 | } |
997 | |
854 | |
998 | req->result = res; |
855 | *namesp = (void *)names; |
|
|
856 | return res; |
|
|
857 | } |
999 | } |
858 | |
1000 | |
859 | /*****************************************************************************/ |
1001 | /*****************************************************************************/ |
860 | |
1002 | |
861 | static void *aio_proc (void *thr_arg) |
1003 | static void *aio_proc (void *thr_arg) |
862 | { |
1004 | { |
863 | aio_req req; |
1005 | aio_req req; |
864 | int type; |
1006 | worker *self = (worker *)thr_arg; |
865 | |
1007 | |
866 | do |
1008 | for (;;) |
867 | { |
1009 | { |
868 | pthread_mutex_lock (&reqlock); |
1010 | LOCK (reqlock); |
869 | |
1011 | |
870 | for (;;) |
1012 | for (;;) |
871 | { |
1013 | { |
872 | req = reqq_shift (&req_queue); |
1014 | self->req = req = reqq_shift (&req_queue); |
873 | |
1015 | |
874 | if (req) |
1016 | if (req) |
875 | break; |
1017 | break; |
876 | |
1018 | |
877 | pthread_cond_wait (&reqwait, &reqlock); |
1019 | pthread_cond_wait (&reqwait, &reqlock); |
878 | } |
1020 | } |
879 | |
1021 | |
880 | pthread_mutex_unlock (&reqlock); |
1022 | --nready; |
|
|
1023 | |
|
|
1024 | UNLOCK (reqlock); |
881 | |
1025 | |
882 | errno = 0; /* strictly unnecessary */ |
1026 | errno = 0; /* strictly unnecessary */ |
883 | type = req->type; /* remember type for QUIT check */ |
|
|
884 | |
1027 | |
885 | if (!(req->flags & FLAG_CANCELLED)) |
1028 | if (!(req->flags & FLAG_CANCELLED)) |
886 | switch (type) |
1029 | switch (req->type) |
887 | { |
1030 | { |
888 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1031 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
889 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1032 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
890 | |
1033 | |
891 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1034 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
892 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1035 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
893 | |
1036 | |
894 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1037 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
895 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1038 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
896 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1039 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
897 | |
1040 | |
… | |
… | |
900 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1043 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
901 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1044 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
902 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1045 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
903 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1046 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
904 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1047 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
1048 | case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break; |
905 | |
1049 | |
906 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1050 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
907 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1051 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
908 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
1052 | case REQ_READDIR: scandir_ (req, self); break; |
909 | |
1053 | |
910 | case REQ_SLEEP: |
1054 | case REQ_BUSY: |
911 | { |
1055 | { |
912 | struct timeval tv; |
1056 | struct timeval tv; |
913 | |
1057 | |
914 | tv.tv_sec = req->fd; |
1058 | tv.tv_sec = req->fd; |
915 | tv.tv_usec = req->fd2; |
1059 | tv.tv_usec = req->fd2; |
… | |
… | |
917 | req->result = select (0, 0, 0, 0, &tv); |
1061 | req->result = select (0, 0, 0, 0, &tv); |
918 | } |
1062 | } |
919 | |
1063 | |
920 | case REQ_GROUP: |
1064 | case REQ_GROUP: |
921 | case REQ_NOP: |
1065 | case REQ_NOP: |
|
|
1066 | break; |
|
|
1067 | |
922 | case REQ_QUIT: |
1068 | case REQ_QUIT: |
|
|
1069 | LOCK (wrklock); |
|
|
1070 | worker_free (self); |
|
|
1071 | --started; |
|
|
1072 | UNLOCK (wrklock); |
923 | break; |
1073 | return 0; |
924 | |
1074 | |
925 | default: |
1075 | default: |
926 | req->result = ENOSYS; |
1076 | req->result = ENOSYS; |
927 | break; |
1077 | break; |
928 | } |
1078 | } |
929 | |
1079 | |
930 | req->errorno = errno; |
1080 | req->errorno = errno; |
931 | |
1081 | |
932 | pthread_mutex_lock (&reslock); |
1082 | LOCK (reslock); |
|
|
1083 | |
|
|
1084 | ++npending; |
933 | |
1085 | |
934 | if (!reqq_push (&res_queue, req)) |
1086 | if (!reqq_push (&res_queue, req)) |
935 | /* write a dummy byte to the pipe so fh becomes ready */ |
1087 | /* write a dummy byte to the pipe so fh becomes ready */ |
936 | write (respipe [1], &respipe, 1); |
1088 | write (respipe [1], &respipe, 1); |
937 | |
1089 | |
938 | pthread_mutex_unlock (&reslock); |
1090 | self->req = 0; |
939 | } |
1091 | worker_clear (self); |
940 | while (type != REQ_QUIT); |
|
|
941 | |
1092 | |
942 | return 0; |
1093 | UNLOCK (reslock); |
|
|
1094 | } |
943 | } |
1095 | } |
944 | |
1096 | |
945 | /*****************************************************************************/ |
1097 | /*****************************************************************************/ |
946 | |
1098 | |
947 | static void atfork_prepare (void) |
1099 | static void atfork_prepare (void) |
948 | { |
1100 | { |
949 | pthread_mutex_lock (&reqlock); |
1101 | LOCK (wrklock); |
950 | pthread_mutex_lock (&reslock); |
1102 | LOCK (reqlock); |
|
|
1103 | LOCK (reslock); |
951 | #if !HAVE_PREADWRITE |
1104 | #if !HAVE_PREADWRITE |
952 | pthread_mutex_lock (&preadwritelock); |
1105 | LOCK (preadwritelock); |
953 | #endif |
1106 | #endif |
954 | #if !HAVE_READDIR_R |
1107 | #if !HAVE_READDIR_R |
955 | pthread_mutex_lock (&readdirlock); |
1108 | LOCK (readdirlock); |
956 | #endif |
1109 | #endif |
957 | } |
1110 | } |
958 | |
1111 | |
959 | static void atfork_parent (void) |
1112 | static void atfork_parent (void) |
960 | { |
1113 | { |
961 | #if !HAVE_READDIR_R |
1114 | #if !HAVE_READDIR_R |
962 | pthread_mutex_unlock (&readdirlock); |
1115 | UNLOCK (readdirlock); |
963 | #endif |
1116 | #endif |
964 | #if !HAVE_PREADWRITE |
1117 | #if !HAVE_PREADWRITE |
965 | pthread_mutex_unlock (&preadwritelock); |
1118 | UNLOCK (preadwritelock); |
966 | #endif |
1119 | #endif |
967 | pthread_mutex_unlock (&reslock); |
1120 | UNLOCK (reslock); |
968 | pthread_mutex_unlock (&reqlock); |
1121 | UNLOCK (reqlock); |
|
|
1122 | UNLOCK (wrklock); |
969 | } |
1123 | } |
970 | |
1124 | |
971 | static void atfork_child (void) |
1125 | static void atfork_child (void) |
972 | { |
1126 | { |
973 | aio_req prv; |
1127 | aio_req prv; |
974 | |
|
|
975 | started = 0; |
|
|
976 | |
1128 | |
977 | while (prv = reqq_shift (&req_queue)) |
1129 | while (prv = reqq_shift (&req_queue)) |
978 | req_free (prv); |
1130 | req_free (prv); |
979 | |
1131 | |
980 | while (prv = reqq_shift (&res_queue)) |
1132 | while (prv = reqq_shift (&res_queue)) |
981 | req_free (prv); |
1133 | req_free (prv); |
982 | |
1134 | |
|
|
1135 | while (wrk_first.next != &wrk_first) |
|
|
1136 | { |
|
|
1137 | worker *wrk = wrk_first.next; |
|
|
1138 | |
|
|
1139 | if (wrk->req) |
|
|
1140 | req_free (wrk->req); |
|
|
1141 | |
|
|
1142 | worker_clear (wrk); |
|
|
1143 | worker_free (wrk); |
|
|
1144 | } |
|
|
1145 | |
|
|
1146 | started = 0; |
|
|
1147 | nreqs = 0; |
|
|
1148 | |
983 | close (respipe [0]); |
1149 | close (respipe [0]); |
984 | close (respipe [1]); |
1150 | close (respipe [1]); |
985 | create_pipe (); |
1151 | create_pipe (); |
986 | |
1152 | |
987 | atfork_parent (); |
1153 | atfork_parent (); |
… | |
… | |
1013 | PROTOTYPES: ENABLE |
1179 | PROTOTYPES: ENABLE |
1014 | |
1180 | |
1015 | BOOT: |
1181 | BOOT: |
1016 | { |
1182 | { |
1017 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1183 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1184 | |
1018 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1185 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1019 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1186 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1020 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1187 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1188 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1189 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1190 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
1021 | |
1191 | |
1022 | create_pipe (); |
1192 | create_pipe (); |
1023 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1193 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1024 | } |
|
|
1025 | |
1194 | |
|
|
1195 | start_thread (); |
|
|
1196 | } |
|
|
1197 | |
1026 | void |
1198 | void |
1027 | min_parallel (nthreads) |
1199 | min_parallel (int nthreads) |
1028 | int nthreads |
|
|
1029 | PROTOTYPE: $ |
1200 | PROTOTYPE: $ |
1030 | |
1201 | |
1031 | void |
1202 | void |
1032 | max_parallel (nthreads) |
1203 | max_parallel (int nthreads) |
1033 | int nthreads |
|
|
1034 | PROTOTYPE: $ |
1204 | PROTOTYPE: $ |
1035 | |
1205 | |
1036 | int |
1206 | int |
1037 | max_outstanding (nreqs) |
1207 | max_outstanding (int maxreqs) |
1038 | int nreqs |
1208 | PROTOTYPE: $ |
1039 | PROTOTYPE: $ |
|
|
1040 | CODE: |
1209 | CODE: |
1041 | RETVAL = max_outstanding; |
1210 | RETVAL = max_outstanding; |
1042 | max_outstanding = nreqs; |
1211 | max_outstanding = maxreqs; |
|
|
1212 | OUTPUT: |
|
|
1213 | RETVAL |
1043 | |
1214 | |
1044 | void |
1215 | void |
1045 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1216 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1046 | SV * pathname |
1217 | SV * pathname |
1047 | int flags |
1218 | int flags |
… | |
… | |
1262 | |
1433 | |
1263 | REQ_SEND; |
1434 | REQ_SEND; |
1264 | } |
1435 | } |
1265 | |
1436 | |
1266 | void |
1437 | void |
|
|
1438 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1439 | SV * pathname |
|
|
1440 | SV * callback |
|
|
1441 | UV mode |
|
|
1442 | UV dev |
|
|
1443 | PPCODE: |
|
|
1444 | { |
|
|
1445 | dREQ; |
|
|
1446 | |
|
|
1447 | req->type = REQ_MKNOD; |
|
|
1448 | req->data = newSVsv (pathname); |
|
|
1449 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1450 | req->mode = (mode_t)mode; |
|
|
1451 | req->offset = dev; |
|
|
1452 | |
|
|
1453 | REQ_SEND; |
|
|
1454 | } |
|
|
1455 | |
|
|
1456 | void |
1267 | aio_sleep (delay,callback=&PL_sv_undef) |
1457 | aio_busy (delay,callback=&PL_sv_undef) |
1268 | double delay |
1458 | double delay |
1269 | SV * callback |
1459 | SV * callback |
1270 | PPCODE: |
1460 | PPCODE: |
1271 | { |
1461 | { |
1272 | dREQ; |
1462 | dREQ; |
1273 | |
1463 | |
1274 | req->type = REQ_SLEEP; |
1464 | req->type = REQ_BUSY; |
1275 | req->fd = delay < 0. ? 0 : delay; |
1465 | req->fd = delay < 0. ? 0 : delay; |
1276 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1466 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1277 | |
1467 | |
1278 | REQ_SEND; |
1468 | REQ_SEND; |
1279 | } |
1469 | } |
… | |
… | |
1302 | req->type = REQ_NOP; |
1492 | req->type = REQ_NOP; |
1303 | |
1493 | |
1304 | REQ_SEND; |
1494 | REQ_SEND; |
1305 | } |
1495 | } |
1306 | |
1496 | |
1307 | void |
1497 | int |
1308 | aioreq_pri (int pri = DEFAULT_PRI) |
1498 | aioreq_pri (int pri = 0) |
|
|
1499 | PROTOTYPE: ;$ |
1309 | CODE: |
1500 | CODE: |
|
|
1501 | RETVAL = next_pri - PRI_BIAS; |
|
|
1502 | if (items > 0) |
|
|
1503 | { |
1310 | if (pri < PRI_MIN) pri = PRI_MIN; |
1504 | if (pri < PRI_MIN) pri = PRI_MIN; |
1311 | if (pri > PRI_MAX) pri = PRI_MAX; |
1505 | if (pri > PRI_MAX) pri = PRI_MAX; |
1312 | next_pri = pri + PRI_BIAS; |
1506 | next_pri = pri + PRI_BIAS; |
|
|
1507 | } |
|
|
1508 | OUTPUT: |
|
|
1509 | RETVAL |
|
|
1510 | |
|
|
1511 | void |
|
|
1512 | aioreq_nice (int nice = 0) |
|
|
1513 | CODE: |
|
|
1514 | nice = next_pri - nice; |
|
|
1515 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1516 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1517 | next_pri = nice + PRI_BIAS; |
1313 | |
1518 | |
1314 | void |
1519 | void |
1315 | flush () |
1520 | flush () |
1316 | PROTOTYPE: |
1521 | PROTOTYPE: |
1317 | CODE: |
1522 | CODE: |
1318 | while (nreqs) |
1523 | while (nreqs) |
1319 | { |
1524 | { |
1320 | poll_wait (); |
1525 | poll_wait (); |
1321 | poll_cb (); |
1526 | poll_cb (0); |
1322 | } |
1527 | } |
1323 | |
1528 | |
1324 | void |
1529 | void |
1325 | poll() |
1530 | poll() |
1326 | PROTOTYPE: |
1531 | PROTOTYPE: |
1327 | CODE: |
1532 | CODE: |
1328 | if (nreqs) |
1533 | if (nreqs) |
1329 | { |
1534 | { |
1330 | poll_wait (); |
1535 | poll_wait (); |
1331 | poll_cb (); |
1536 | poll_cb (0); |
1332 | } |
1537 | } |
1333 | |
1538 | |
1334 | int |
1539 | int |
1335 | poll_fileno() |
1540 | poll_fileno() |
1336 | PROTOTYPE: |
1541 | PROTOTYPE: |
… | |
… | |
1341 | |
1546 | |
1342 | int |
1547 | int |
1343 | poll_cb(...) |
1548 | poll_cb(...) |
1344 | PROTOTYPE: |
1549 | PROTOTYPE: |
1345 | CODE: |
1550 | CODE: |
1346 | RETVAL = poll_cb (); |
1551 | RETVAL = poll_cb (0); |
|
|
1552 | OUTPUT: |
|
|
1553 | RETVAL |
|
|
1554 | |
|
|
1555 | int |
|
|
1556 | poll_some(int max = 0) |
|
|
1557 | PROTOTYPE: $ |
|
|
1558 | CODE: |
|
|
1559 | RETVAL = poll_cb (max); |
1347 | OUTPUT: |
1560 | OUTPUT: |
1348 | RETVAL |
1561 | RETVAL |
1349 | |
1562 | |
1350 | void |
1563 | void |
1351 | poll_wait() |
1564 | poll_wait() |
… | |
… | |
1360 | CODE: |
1573 | CODE: |
1361 | RETVAL = nreqs; |
1574 | RETVAL = nreqs; |
1362 | OUTPUT: |
1575 | OUTPUT: |
1363 | RETVAL |
1576 | RETVAL |
1364 | |
1577 | |
|
|
1578 | int |
|
|
1579 | nready() |
|
|
1580 | PROTOTYPE: |
|
|
1581 | CODE: |
|
|
1582 | RETVAL = get_nready (); |
|
|
1583 | OUTPUT: |
|
|
1584 | RETVAL |
|
|
1585 | |
|
|
1586 | int |
|
|
1587 | npending() |
|
|
1588 | PROTOTYPE: |
|
|
1589 | CODE: |
|
|
1590 | RETVAL = get_npending (); |
|
|
1591 | OUTPUT: |
|
|
1592 | RETVAL |
|
|
1593 | |
1365 | PROTOTYPES: DISABLE |
1594 | PROTOTYPES: DISABLE |
1366 | |
1595 | |
1367 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1596 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1368 | |
1597 | |
1369 | void |
1598 | void |
… | |
… | |
1411 | } |
1640 | } |
1412 | } |
1641 | } |
1413 | } |
1642 | } |
1414 | |
1643 | |
1415 | void |
1644 | void |
|
|
1645 | cancel_subs (aio_req_ornot req) |
|
|
1646 | CODE: |
|
|
1647 | req_cancel_subs (req); |
|
|
1648 | |
|
|
1649 | void |
1416 | result (aio_req grp, ...) |
1650 | result (aio_req grp, ...) |
1417 | CODE: |
1651 | CODE: |
1418 | { |
1652 | { |
1419 | int i; |
1653 | int i; |
|
|
1654 | AV *av; |
|
|
1655 | |
|
|
1656 | grp->errorno = errno; |
|
|
1657 | |
1420 | AV *av = newAV (); |
1658 | av = newAV (); |
1421 | |
1659 | |
1422 | for (i = 1; i < items; ++i ) |
1660 | for (i = 1; i < items; ++i ) |
1423 | av_push (av, newSVsv (ST (i))); |
1661 | av_push (av, newSVsv (ST (i))); |
1424 | |
1662 | |
1425 | SvREFCNT_dec (grp->data); |
1663 | SvREFCNT_dec (grp->data); |
1426 | grp->data = (SV *)av; |
1664 | grp->data = (SV *)av; |
1427 | } |
1665 | } |
|
|
1666 | |
|
|
1667 | void |
|
|
1668 | errno (aio_req grp, int errorno = errno) |
|
|
1669 | CODE: |
|
|
1670 | grp->errorno = errorno; |
1428 | |
1671 | |
1429 | void |
1672 | void |
1430 | limit (aio_req grp, int limit) |
1673 | limit (aio_req grp, int limit) |
1431 | CODE: |
1674 | CODE: |
1432 | grp->fd2 = limit; |
1675 | grp->fd2 = limit; |