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8 | #include <signal.h> |
8 | #include <signal.h> |
9 | #include <sched.h> |
9 | #include <sched.h> |
10 | |
10 | |
11 | #define STACKSIZE 1024 /* yeah */ |
11 | #define STACKSIZE 1024 /* yeah */ |
12 | |
12 | |
13 | enum { REQ_QUIT, REQ_READ, REQ_WRITE, REQ_OPEN }; |
13 | enum { REQ_QUIT, REQ_READ, REQ_WRITE, REQ_OPEN, REQ_CLOSE }; |
14 | |
14 | |
15 | typedef struct { |
15 | typedef struct { |
16 | char stack[STACKSIZE]; |
16 | char stack[STACKSIZE]; |
17 | } aio_thread; |
17 | } aio_thread; |
18 | |
18 | |
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167 | |
167 | |
168 | static int |
168 | static int |
169 | aio_proc(void *thr_arg) |
169 | aio_proc(void *thr_arg) |
170 | { |
170 | { |
171 | aio_thread *thr = thr_arg; |
171 | aio_thread *thr = thr_arg; |
172 | int sig; |
172 | aio_req req; |
173 | int errno; |
173 | int errno; |
174 | aio_req req; |
174 | |
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175 | /* we rely on gcc's ability to create closures. */ |
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176 | _syscall3(int,lseek,int,fd,off_t,offset,int,whence) |
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177 | _syscall3(int,read,int,fd,char *,buf,off_t,count) |
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178 | _syscall3(int,write,int,fd,char *,buf,off_t,count) |
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179 | _syscall3(int,open,char *,pathname,int,flags,mode_t,mode) |
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180 | _syscall1(int,close,int,fd) |
175 | |
181 | |
176 | sigprocmask (SIG_SETMASK, &fullsigset, 0); |
182 | sigprocmask (SIG_SETMASK, &fullsigset, 0); |
177 | |
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178 | /* we rely on gcc's ability to create closures. */ |
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179 | _syscall3(int,lseek,int,fd,off_t,offset,int,whence); |
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180 | _syscall3(int,read,int,fd,char *,buf,off_t,count); |
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181 | _syscall3(int,write,int,fd,char *,buf,off_t,count); |
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182 | _syscall3(int,open,char *,pathname,int,flags,mode_t,mode); |
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183 | |
183 | |
184 | /* then loop */ |
184 | /* then loop */ |
185 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
185 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
186 | { |
186 | { |
187 | req->thread = thr; |
187 | req->thread = thr; |
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199 | } |
199 | } |
200 | else if (req->type == REQ_OPEN) |
200 | else if (req->type == REQ_OPEN) |
201 | { |
201 | { |
202 | req->result = open (req->dataptr, req->fd, req->mode); |
202 | req->result = open (req->dataptr, req->fd, req->mode); |
203 | } |
203 | } |
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204 | else if (req->type == REQ_CLOSE) |
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205 | { |
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206 | req->result = close (req->fd); |
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207 | } |
204 | else |
208 | else |
205 | { |
209 | { |
206 | write (respipe[1], (void *)&req, sizeof (req)); |
210 | write (respipe[1], (void *)&req, sizeof (req)); |
207 | break; |
211 | break; |
208 | } |
212 | } |
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217 | MODULE = Linux::AIO PACKAGE = Linux::AIO |
221 | MODULE = Linux::AIO PACKAGE = Linux::AIO |
218 | |
222 | |
219 | BOOT: |
223 | BOOT: |
220 | { |
224 | { |
221 | sigfillset (&fullsigset); |
225 | sigfillset (&fullsigset); |
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226 | sigdelset (&fullsigset, SIGTERM); |
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227 | sigdelset (&fullsigset, SIGQUIT); |
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228 | sigdelset (&fullsigset, SIGABRT); |
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229 | sigdelset (&fullsigset, SIGINT); |
222 | |
230 | |
223 | if (pipe (reqpipe) || pipe (respipe)) |
231 | if (pipe (reqpipe) || pipe (respipe)) |
224 | croak ("unable to initialize request or result pipe"); |
232 | croak ("unable to initialize request or result pipe"); |
225 | |
233 | |
226 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
234 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
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291 | req->mode = mode; |
299 | req->mode = mode; |
292 | req->callback = SvREFCNT_inc (callback); |
300 | req->callback = SvREFCNT_inc (callback); |
293 | |
301 | |
294 | send_req (req); |
302 | send_req (req); |
295 | |
303 | |
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304 | void |
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305 | aio_close(fh,callback) |
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306 | PerlIO * fh |
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307 | SV * callback |
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308 | PROTOTYPE: $ |
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309 | CODE: |
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310 | aio_req req; |
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311 | |
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312 | New (0, req, 1, aio_cb); |
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313 | |
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314 | if (!req) |
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315 | croak ("out of memory during aio_req allocation"); |
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316 | |
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317 | req->type = REQ_CLOSE; |
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318 | req->fd = PerlIO_fileno (fh); |
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319 | req->callback = SvREFCNT_inc (callback); |
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320 | |
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321 | send_req (req); |
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322 | |
296 | int |
323 | int |
297 | poll_fileno() |
324 | poll_fileno() |
298 | PROTOTYPE: |
325 | PROTOTYPE: |
299 | CODE: |
326 | CODE: |
300 | RETVAL = respipe[0]; |
327 | RETVAL = respipe[0]; |